[Fix] (MG_Backend/DirectGLES): support Voxy rendering

Implemented:

- Advertise Voxy-required DirectGLES extensions without raising the reported OpenGL version.

- Add DirectGLES multi draw indirect count emulation and preserve GL draw indirect baseInstance semantics on GLES.

- Add DirectGLES DSA framebuffer clear/blit paths used by Minecraft and Voxy presentation.

Fixed:

- Rewrite gl_BaseInstance in DirectGLES vertex shaders and provide a backend uniform for indirect draw emulation.

- Materialize framebuffer attachment textures during DirectGLES FBO sync so named framebuffer operations do not desync backend attachment state.

- Avoid redundant texture buffer rebinding and handle texture buffers without bound storage during backend sync.

Tests:

- Add MG_Test coverage for DirectGLES Voxy extension advertising, baseInstance shader rewriting, and DSA named framebuffer clear/blit backend wiring.

.github/workflows/plugin-apk.yml

@@ -0,0 +1,80 @@
+name: MobileGL Plugin APK
+
+on:
+  push:
+    branches:
+      - dev
+      - Feat/Backend-Direct-GLES
+      - Feat/Backend-Direct-Vulkan
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - name: Set artifact metadata
+        run: |
+          echo "date_today=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+          echo "short_sha=${GITHUB_SHA::7}" >> "$GITHUB_ENV"
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: zulu
+          java-version: '17'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+        with:
+          gradle-version: 8.10.2
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v3
+
+      - name: Install Android NDK
+        run: |
+          sdkmanager "ndk;27.3.13750724"
+          echo "ndk.dir=$ANDROID_HOME/ndk/27.3.13750724" >> android-plugin/local.properties
+
+      - name: Update glslang external sources
+        working-directory: 3rdparty/glslang
+        run: python update_glslang_sources.py
+
+      - name: Build plugin APK
+        run: gradle --no-daemon -p android-plugin :app:assembleRelease
+        env:
+          SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_STORE_PASSWORD }}
+          SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
+          SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
+
+      - name: Verify signed APK
+        run: |
+          APKSIGNER="$(find "$ANDROID_HOME/build-tools" -name apksigner -type f | sort -V | tail -n 1)"
+          mapfile -t APKS < <(find android-plugin/app/build/outputs/apk -type f -path '*/release/*.apk' | sort)
+          if [ "${#APKS[@]}" -eq 0 ]; then
+            echo "::error::No release APKs found under android-plugin/app/build/outputs/apk"
+            find android-plugin/app/build/outputs/apk -type f -print || true
+            exit 1
+          fi
+
+          for APK in "${APKS[@]}"; do
+            if [[ "$APK" == *-unsigned.apk ]]; then
+              echo "::error::Unsigned release APK produced: $APK"
+              exit 1
+            fi
+            "$APKSIGNER" verify --verbose "$APK"
+          done
+
+      - name: Upload plugin APK
+        uses: actions/upload-artifact@v4
+        with:
+          name: MobileGL-plugin-${{ env.date_today }}-${{ env.short_sha }}
+          path: |
+            android-plugin/app/build/outputs/apk/release/*.apk
+            android-plugin/app/build/outputs/apk/**/release/*.apk

.gitignore

@@ -18,4 +18,7 @@ MobileGL/MG_Test/build
 /cmake-build*
 .idea
 MobileGL/MG*/build*
-MobileGL/MG*/cmake-build*
+MobileGL/MG*/cmake-build*
+/android-plugin/.gradle
+/android-plugin/build
+/android-plugin/app/build

.gitmodules

@@ -25,3 +25,6 @@
 [submodule "3rdparty/Vulkan-Headers"]
 	path = 3rdparty/Vulkan-Headers
 	url = https://github.com/KhronosGroup/Vulkan-Headers.git
+[submodule "3rdparty/SPIRV-Reflect"]
+	path = 3rdparty/SPIRV-Reflect
+	url = https://github.com/KhronosGroup/SPIRV-Reflect.git

CMakeLists.txt

@@ -104,12 +104,20 @@ set(SPIRV_CROSS_ENABLE_CPP     OFF CACHE BOOL "Disable C++ API target" FORCE)
 set(SPIRV_CROSS_CLI            OFF CACHE BOOL "Disable CLI binary" FORCE)
 set(SPIRV_CROSS_STATIC         ON  CACHE BOOL "Prefer static libs" FORCE)
 
+set(SPIRV_REFLECT_EXECUTABLE     OFF CACHE BOOL "Build spirv-reflect executable" FORCE)
+set(SPIRV_REFLECT_STATIC_LIB     ON  CACHE BOOL "Build a SPIRV-Reflect static library" FORCE)
+set(SPIRV_REFLECT_BUILD_TESTS    OFF CACHE BOOL "Build the SPIRV-Reflect test suite" FORCE)
+set(SPIRV_REFLECT_ENABLE_ASSERTS OFF CACHE BOOL  "Enable asserts for debugging" FORCE)
+set(SPIRV_REFLECT_ENABLE_ASAN    OFF CACHE BOOL "Use address sanitization" FORCE)
+set(SPIRV_REFLECT_INSTALL        OFF CACHE BOOL "Whether to install" FORCE)
+
 # add_subdirectory(3rdparty/DiligentCore)
 add_subdirectory(3rdparty/glslang)
 add_subdirectory(3rdparty/SPIRV-Cross)
 add_subdirectory(3rdparty/VulkanMemoryAllocator)
 add_subdirectory(3rdparty/Vulkan-Headers)
 add_subdirectory(3rdparty/Vulkan-Utility-Libraries)
+add_subdirectory(3rdparty/SPIRV-Reflect)
 
 set(XXHASH_BUILD_XXHSUM OFF)
 option(BUILD_SHARED_LIBS OFF)
@@ -171,6 +179,7 @@ set(SOURCE_FILES
     MobileGL/MG_Util/ShaderTranspiler/SpvcSession.cpp
     MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp
     MobileGL/MG_Util/ShaderTranspiler/glslang/TMglGlslIoResolver.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/FlattenInterfaceStructPass.cpp
     MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/EliminateFloatEqualsZeroPass.cpp
 
     MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
@@ -223,7 +232,9 @@ set(SOURCE_FILES
     MobileGL/MG_Backend/DirectVulkan/Renderer/FrameContext.cpp
     MobileGL/MG_Backend/DirectVulkan/Renderer/PipelineFactory.cpp
     MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.cpp
-    MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.cpp
+        MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.cpp
     MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateBuilder.cpp
     MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateFactory.cpp
     MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferObject.cpp
@@ -268,6 +279,7 @@ set(MOBILEGL_LINK_LIBRARIES
         xxHash::xxhash
         GPUOpen::VulkanMemoryAllocator
         Vulkan::UtilityHeaders
+        spirv-reflect-static
 )
 
 set(MOBILEGL_COMPILE_DEF

MobileGL/Config.h

@@ -14,7 +14,7 @@ namespace MobileGL::MG_Config {
     inline const String ProjectName = "MobileGL";
     inline const String CoreName = "MobileGL Core";
     inline const String CoreVendor = "MobileGL-Dev (BZLZHH, Swung0x48, Tungsten)";
-    inline const Version CoreVersion = {26, 3, 0, "-dev", VersionType::Development};
+    inline const Version CoreVersion = {26, 6, 0, "-dev", VersionType::Development};
     inline const VersionStringFormatAttrib DefaultVersionStringFormatAttrib = {2, 2, 0, true, true};
     inline const Uint64 CacheVersion = 0;
 

MobileGL/ConfigLoader.cpp

@@ -8,6 +8,10 @@
 
 #include "Config.h"
 
+#ifndef _WIN32
+extern char** environ;
+#endif
+
 namespace MobileGL::MG_ConfigLoader {
     static UniquePtr<UnorderedMap<String, String>> acceptedEnvVariablesMap;
 

MobileGL/Defines.h

@@ -34,7 +34,9 @@
 #define MOBILEGL_EGL_API MOBILEGL_API
 
 // ====================== MobileGL configurations ======================= //
-#define MOBILEGL_LOG_ACTIVE_LEVEL MOBILEGL_LOG_LEVEL_INFO
+#ifndef MOBILEGL_LOG_ACTIVE_LEVEL
+#define MOBILEGL_LOG_ACTIVE_LEVEL MOBILEGL_LOG_LEVEL_DEBUG
+#endif
 
 #define MOBILEGL_LOG_ENABLE_CONSOLE 0
 #define MOBILEGL_LOG_ENABLE_FILE 1
@@ -63,11 +65,15 @@
 #endif
 
 // =============================== Utils ================================ //
-#define MOBILEGL_ASSERT(condition, ...)                                                                                \
+#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
-    do {                                                                                                               \
+    #define MOBILEGL_ASSERT(condition, ...)                                                                                \
-        if (!(condition)) {                                                                                            \
+        do {                                                                                                               \
-            MGLOG_F("Assertion failed" __VA_OPT__(": ") __VA_ARGS__);                                                  \
+            if (!(condition)) {                                                                                            \
-            MGLOG_F("  at %s:%d (%s)", __FILE__, __LINE__, __func__);                                                  \
+                MGLOG_F("Assertion failed" __VA_OPT__(": ") __VA_ARGS__);                                                  \
-            TRAP;                                                                                                      \
+                MGLOG_F("  at %s:%d (%s)", __FILE__, __LINE__, __func__);                                                  \
-        }                                                                                                              \
+                TRAP;                                                                                                      \
-    } while (0)
+            }                                                                                                              \
+        } while (0)
+#else
+    #define MOBILEGL_ASSERT(condition, ...)
+#endif

MobileGL/Includes.h

@@ -32,6 +32,8 @@
 #include <thread>
 #include <vector>
 #include <cassert>
+#include <climits>
+#include <cstdlib>
 #include <cstdarg>
 #include <cstring>
 #include <numeric>
@@ -108,10 +110,32 @@
 #define VK_USE_PLATFORM_WIN32_KHR
 #elif defined(__APPLE__)
 #define VK_USE_PLATFORM_METAL_EXT
+#elif defined(__linux__)
+#define VK_USE_PLATFORM_XLIB_KHR
+typedef struct _XDisplay Display;
+typedef unsigned long XID;
+typedef XID Window;
+typedef unsigned long VisualID;
 #else
 #warning "VK_USE_PLATFORM_*_KHR not defined for this platform!"
 #endif
+#if defined(VK_USE_PLATFORM_XLIB_KHR)
+#pragma push_macro("Bool")
+#pragma push_macro("None")
+#pragma push_macro("Always")
+#pragma push_macro("Status")
+#pragma push_macro("LSBFirst")
+#pragma push_macro("DestroyAll")
+#endif
 #include <vulkan/vulkan.h>
+#if defined(VK_USE_PLATFORM_XLIB_KHR)
+#pragma pop_macro("DestroyAll")
+#pragma pop_macro("LSBFirst")
+#pragma pop_macro("Status")
+#pragma pop_macro("Always")
+#pragma pop_macro("None")
+#pragma pop_macro("Bool")
+#endif
 
 #ifdef TRACY_ENABLE
 #include <tracy/Tracy.hpp>

MobileGL/MG_Backend/BackendObject.cpp

@@ -53,7 +53,8 @@ namespace MobileGL::MG_Backend {
             return false;
         }
 
-        if (m_eglWindowSurfaceInitialized && m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle) {
+        if (m_eglSurfaceInitialized && m_eglSurfaceKind == SurfaceKind::Window &&
+            m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle) {
             return true;
         }
 
@@ -63,7 +64,35 @@ namespace MobileGL::MG_Backend {
             return false;
         }
 
-        m_eglWindowSurfaceInitialized = true;
+        m_eglSurfaceInitialized = true;
+        m_eglSurfaceKind = SurfaceKind::Window;
+        m_eglCurrentThreads.clear();
+        m_backendCapabilitiesInitialized = false;
+        return true;
+    }
+
+    Bool BackendObject::CreateEGLPbufferSurface(EGLint width, EGLint height) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        if (!m_eglDisplayInitialized) {
+            MGLOG_E("CreateEGLPbufferSurface failed: EGL display is not initialized");
+            return false;
+        }
+        if (width <= 0 || height <= 0) {
+            MGLOG_E("CreateEGLPbufferSurface failed: invalid size %dx%d", width, height);
+            return false;
+        }
+
+        if (m_eglSurfaceInitialized && m_eglSurfaceKind == SurfaceKind::Pbuffer) {
+            return true;
+        }
+
+        if (!InitPbufferSurface(width, height)) {
+            MGLOG_E("CreateEGLPbufferSurface failed: backend InitPbufferSurface failed");
+            return false;
+        }
+
+        m_eglSurfaceInitialized = true;
+        m_eglSurfaceKind = SurfaceKind::Pbuffer;
         m_eglCurrentThreads.clear();
         m_backendCapabilitiesInitialized = false;
         return true;
@@ -81,8 +110,8 @@ namespace MobileGL::MG_Backend {
             MGLOG_E("MakeEGLCurrent failed: EGL display mismatch or not initialized");
             return false;
         }
-        if (!m_eglWindowSurfaceInitialized) {
+        if (!m_eglSurfaceInitialized) {
-            MGLOG_E("MakeEGLCurrent failed: EGL window surface is not initialized");
+            MGLOG_E("MakeEGLCurrent failed: EGL surface is not initialized");
             return false;
         }
         if (draw == EGL_NO_SURFACE || read == EGL_NO_SURFACE || ctx == EGL_NO_CONTEXT) {
@@ -104,8 +133,9 @@ namespace MobileGL::MG_Backend {
 
     void BackendObject::ResetEGLRuntimeState() {
         const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
-        m_eglWindowSurfaceInitialized = false;
+        m_eglSurfaceInitialized = false;
         m_backendCapabilitiesInitialized = false;
+        m_eglSurfaceKind = SurfaceKind::None;
         m_eglCurrentThreads.clear();
     }
 
@@ -119,7 +149,7 @@ namespace MobileGL::MG_Backend {
             MGLOG_E("SwapEGLBuffers failed: no current context attached");
             return false;
         }
-        if (!m_eglWindowSurfaceInitialized || draw == EGL_NO_SURFACE) {
+        if (!m_eglSurfaceInitialized || draw == EGL_NO_SURFACE) {
             MGLOG_E("SwapEGLBuffers failed: invalid draw surface");
             return false;
         }
@@ -134,8 +164,22 @@ namespace MobileGL::MG_Backend {
         return true;
     }
 
+    void BackendObject::ReleaseEGLResources() {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        ResetEGLRuntimeState();
+        m_eglDisplay = EGL_NO_DISPLAY;
+        m_eglDisplayInitialized = false;
+        m_windowHandle = {};
+    }
+
     void BackendObject::SetWindowHandle(const WindowHandle& handle) {
         const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
         m_windowHandle = handle;
     }
+
+    Bool BackendObject::InitPbufferSurface(EGLint width, EGLint height) {
+        (void)width;
+        (void)height;
+        return false;
+    }
 } // namespace MobileGL::MG_Backend

MobileGL/MG_Backend/BackendObject.h

@@ -8,8 +8,14 @@
 
 #pragma once
 #include <Includes.h>
+#include "MG_State/GLState/TextureState/TextureEnum.h"
 
 namespace MobileGL {
+    namespace MG_State::GLState {
+        class FramebufferObject;
+        class ITextureObject;
+    }
+
     enum class BackendType {
         DirectGLES,
         DirectVulkan,
@@ -31,6 +37,10 @@ namespace MobileGL {
             void (*MultiDrawElementsIndirect)(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount,
                                               GLsizei stride);
             void (*MultiDrawArraysIndirect)(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
+            void (*MultiDrawElementsIndirectCount)(GLenum mode, GLenum type, const void* indirect,
+                                                   GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+            void (*MultiDrawArraysIndirectCount)(GLenum mode, const void* indirect, GLintptr drawcount,
+                                                 GLsizei maxdrawcount, GLsizei stride);
             void (*DrawRangeElementsBaseVertex)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                                 const void* indices, GLint basevertex);
             void (*DrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
@@ -54,8 +64,17 @@ namespace MobileGL {
             void (*ClearBufferfv)(GLenum buffer, GLint drawbuffer, const GLfloat* value);
             void (*ClearBufferuiv)(GLenum buffer, GLint drawbuffer, const GLuint* value);
             void (*ClearBufferiv)(GLenum buffer, GLint drawbuffer, const GLint* value);
+            void (*ClearNamedFramebufferfv)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                            GLenum buffer, GLint drawbuffer, const GLfloat* value);
+            void (*ClearNamedFramebufferfi)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                            GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
             void (*BlitFramebuffer)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,
                                     GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+            void (*BlitNamedFramebuffer)(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                                         const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                                         GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                                         GLbitfield mask, GLenum filter);
             void (*CopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
                                    GLsizei height, GLint border);
             void (*CopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y,
@@ -64,6 +83,27 @@ namespace MobileGL {
             void (*ReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type,
                                void* pixels);
             void (*GetTexImage)(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+            void (*GetTextureImage)(const SharedPtr<MG_State::GLState::ITextureObject>& texture,
+                                    TextureUploadTarget uploadTarget, GLint level, GLenum format, GLenum type,
+                                    GLsizei bufSize, GLvoid* pixels);
+            void (*DispatchCompute)(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+            void (*DispatchComputeIndirect)(GLintptr indirect);
+            void (*MemoryBarrier)(GLbitfield barriers);
+            void (*MemoryBarrierByRegion)(GLbitfield barriers);
+            void (*BindImageTexture)(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer,
+                                     GLenum access, GLenum format);
+            void (*GetIntegeri_v)(GLenum target, GLuint index, GLint* data);
+            void (*GetInteger64i_v)(GLenum target, GLuint index, GLint64* data);
+            void (*GetProgramiv)(GLuint program, GLenum pname, GLint* params);
+            void (*GetProgramInterfaceiv)(GLuint program, GLenum programInterface, GLenum pname, GLint* params);
+            GLuint (*GetProgramResourceIndex)(GLuint program, GLenum programInterface, const GLchar* name);
+            void (*GetProgramResourceName)(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize,
+                                           GLsizei* length, GLchar* name);
+            void (*GetProgramResourceiv)(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                                         const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params);
+            GLint (*GetProgramResourceLocation)(GLuint program, GLenum programInterface, const GLchar* name);
+            GLint (*GetProgramResourceLocationIndex)(GLuint program, GLenum programInterface, const GLchar* name);
+            void (*ShaderStorageBlockBinding)(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
         };
         struct GlobalBackendFunctionsTable {
             GLFunctionsTable GL;
@@ -72,10 +112,16 @@ namespace MobileGL {
 
         struct DynamicBackendParameters {
             SizeT UniformBufferOffsetAlignment = 256;
+            SizeT MaxShaderStorageBlockSize = 128 * 1024 * 1024;
+            Uint32 SubgroupSize = 0;
+            Uint32 SubgroupSupportedStages = 0;
+            Uint32 SubgroupSupportedFeatures = 0;
+            Bool SubgroupQuadOperationsInAllStages = false;
         };
 
         enum class WindowBackend {
             Android,
+            X11,
             // TODO: X11, Wayland, Windows, macOS, etc.
             WindowBackendCount,
             Unknown = -1
@@ -96,8 +142,10 @@ namespace MobileGL {
 
             virtual Bool InitializeEGLDisplay(EGLDisplay dpy, EGLint* major, EGLint* minor);
             virtual Bool CreateEGLWindowSurface(const WindowHandle& handle);
+            virtual Bool CreateEGLPbufferSurface(EGLint width, EGLint height);
             virtual Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
             virtual Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw);
+            virtual void ReleaseEGLResources();
 
             void SetWindowHandle(const WindowHandle& handle);
 
@@ -108,14 +156,22 @@ namespace MobileGL {
             virtual BackendType GetBackendType() const = 0;
 
         protected:
+            enum class SurfaceKind {
+                None,
+                Window,
+                Pbuffer
+            };
+
             void ResetEGLRuntimeState();
+            virtual Bool InitPbufferSurface(EGLint width, EGLint height);
 
             mutable std::recursive_mutex m_eglStateMutex;
             WindowHandle m_windowHandle;
             EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
             Bool m_eglDisplayInitialized = false;
-            Bool m_eglWindowSurfaceInitialized = false;
+            Bool m_eglSurfaceInitialized = false;
             Bool m_backendCapabilitiesInitialized = false;
+            SurfaceKind m_eglSurfaceKind = SurfaceKind::None;
             UnorderedMap<std::thread::id, Bool> m_eglCurrentThreads;
         };
     } // namespace MG_Backend

MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp

@@ -78,18 +78,18 @@ namespace MobileGL::MG_Backend::DirectGLES {
             return false;
         }
 
-        if (handle.Backend != WindowBackend::Android || !handle.Handle) {
+        if ((handle.Backend != WindowBackend::Android && handle.Backend != WindowBackend::X11) || !handle.Handle) {
-            MGLOG_E("DirectGLES backend only supports Android native windows");
+            MGLOG_E("DirectGLES backend only supports Android and X11 native windows");
             return false;
         }
 
-        const Bool sameHandle =
+        const Bool sameHandle = m_eglSurfaceInitialized && m_eglSurfaceKind == SurfaceKind::Window &&
-            m_eglWindowSurfaceInitialized && m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle;
+                                m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle;
         if (sameHandle) {
             return true;
         }
 
-        if (m_eglWindowSurfaceInitialized) {
+        if (m_eglSurfaceInitialized) {
             DestroyEGLContext();
             ResetEGLRuntimeState();
         }
@@ -97,6 +97,10 @@ namespace MobileGL::MG_Backend::DirectGLES {
         return BackendObject::CreateEGLWindowSurface(handle);
     }
 
+    Bool BackendObject_DirectGLES::InitPbufferSurface(EGLint width, EGLint height) {
+        return DirectGLES::InitPbufferSurface(width, height);
+    }
+
     Bool BackendObject_DirectGLES::MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
         if (IsReleaseCurrentRequest(dpy, draw, read, ctx)) {
             return BackendObject::MakeEGLCurrent(dpy, draw, read, ctx);
@@ -109,6 +113,12 @@ namespace MobileGL::MG_Backend::DirectGLES {
         return BackendObject::SwapEGLBuffers(dpy, draw);
     }
 
+    void BackendObject_DirectGLES::ReleaseEGLResources() {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        DestroyEGLContext();
+        BackendObject::ReleaseEGLResources();
+    }
+
     const RendererInfo& BackendObject_DirectGLES::GetRendererInfo() const {
         static RendererInfo RendererInfo = {
             .RendererName = "Espryt",            // Renderer Name
@@ -119,7 +129,13 @@ namespace MobileGL::MG_Backend::DirectGLES {
                     .TargetGLVersion = {3, 3, 0},                      // Target OpenGL Version
                     .TargetGLSLVersion = {4, 6, 0},                    // Target Shading Language Version
                     .Extensions = {V_OpenGL30, V_OpenGL31, V_OpenGL32, // OpenGL Extensions
-                                   V_OpenGL33, E_GL_ARB_draw_buffers_blend},
+                                   V_OpenGL33, E_GL_ARB_draw_buffers_blend, E_GL_ARB_compute_shader,
+                                   E_GL_ARB_shader_storage_buffer_object, E_GL_ARB_shader_image_load_store,
+                                   E_GL_ARB_program_interface_query, E_GL_ARB_framebuffer_object,
+                                   E_GL_EXT_framebuffer_object, E_GL_ARB_depth_texture, E_GL_ARB_buffer_storage,
+                                   E_GL_ARB_texture_storage, E_GL_ARB_direct_state_access,
+                                   E_GL_ARB_multi_draw_indirect, E_GL_ARB_indirect_parameters,
+                                   E_GL_ARB_shader_draw_parameters},
                     .IsCompatibilityProfile = false // Is Compatibility Profile
                 },
             .StaticBackendCapability = {.AllowVSOnlyPrograms = false} // Backend Capability
@@ -153,6 +169,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
             funcsTable.GL.MultiDrawElements = MultiDrawElements;
             funcsTable.GL.MultiDrawElementsBaseVertex = MultiDrawElementsBaseVertex;
             funcsTable.GL.MultiDrawElementsIndirect = MultiDrawElementsIndirect;
+            funcsTable.GL.MultiDrawElementsIndirectCount = MultiDrawElementsIndirectCount;
             funcsTable.GL.MultiDrawArraysIndirect = MultiDrawArraysIndirect;
             funcsTable.GL.DrawRangeElementsBaseVertex = DrawRangeElementsBaseVertex;
             funcsTable.GL.DrawRangeElements = DrawRangeElements;
@@ -164,12 +181,30 @@ namespace MobileGL::MG_Backend::DirectGLES {
             funcsTable.GL.DrawArraysInstanced = DrawArraysInstanced;
             funcsTable.GL.DrawElementsIndirect = DrawElementsIndirect;
             funcsTable.GL.DrawArraysIndirect = DrawArraysIndirect;
+            funcsTable.GL.DispatchCompute = DispatchCompute;
+            funcsTable.GL.DispatchComputeIndirect = DispatchComputeIndirect;
+            funcsTable.GL.MemoryBarrier = MemoryBarrier;
+            funcsTable.GL.MemoryBarrierByRegion = MemoryBarrierByRegion;
+            funcsTable.GL.BindImageTexture = BindImageTexture;
+            funcsTable.GL.GetIntegeri_v = GetIntegeri_v;
+            funcsTable.GL.GetInteger64i_v = GetInteger64i_v;
+            funcsTable.GL.GetProgramiv = GetProgramiv;
+            funcsTable.GL.GetProgramInterfaceiv = GetProgramInterfaceiv;
+            funcsTable.GL.GetProgramResourceIndex = GetProgramResourceIndex;
+            funcsTable.GL.GetProgramResourceName = GetProgramResourceName;
+            funcsTable.GL.GetProgramResourceiv = GetProgramResourceiv;
+            funcsTable.GL.GetProgramResourceLocation = GetProgramResourceLocation;
+            funcsTable.GL.GetProgramResourceLocationIndex = GetProgramResourceLocationIndex;
+            funcsTable.GL.ShaderStorageBlockBinding = ShaderStorageBlockBinding;
             funcsTable.GL.Clear = Clear;
             funcsTable.GL.ClearBufferfi = ClearBufferfi;
             funcsTable.GL.ClearBufferfv = ClearBufferfv;
             funcsTable.GL.ClearBufferuiv = ClearBufferuiv;
             funcsTable.GL.ClearBufferiv = ClearBufferiv;
+            funcsTable.GL.ClearNamedFramebufferfv = ClearNamedFramebufferfv;
+            funcsTable.GL.ClearNamedFramebufferfi = ClearNamedFramebufferfi;
             funcsTable.GL.BlitFramebuffer = BlitFramebuffer;
+            funcsTable.GL.BlitNamedFramebuffer = BlitNamedFramebuffer;
             funcsTable.GL.CopyTexImage2D = CopyTexImage2D;
             funcsTable.GL.CopyTexSubImage2D = CopyTexSubImage2D;
             funcsTable.GL.GenerateMipmap = GenerateMipmap;

MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.h

@@ -23,6 +23,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
         Bool CreateEGLWindowSurface(const WindowHandle& handle) override;
         Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) override;
         Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw) override;
+        void ReleaseEGLResources() override;
 
         const RendererInfo& GetRendererInfo() const override;
         String GetBackendAPIVersionString() const override;
@@ -35,6 +36,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
 
     private:
         void UpdateDynamicBackendParameters();
+        Bool InitPbufferSurface(EGLint width, EGLint height) override;
 
         Bool m_initialized = false;
         MG_External::EGLFunctionsTable m_EGLFunctions;

MobileGL/MG_Backend/DirectGLES/DirectGLES.h

@@ -8,6 +8,7 @@
 
 #pragma once
 #include <Includes.h>
+#include <MG_State/GLState/FramebufferState/FramebufferObject.h>
 #include <MG_State/GLState/TextureState/TextureState.h>
 #include <MG_State/GLState/SamplerState/SamplerObject.h>
 #include <MG_Util/BackendLoaders/OpenGL/Loader.h>
@@ -30,6 +31,8 @@ namespace MobileGL::MG_Backend::DirectGLES {
     void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
                                      GLsizei drawcount, const GLint* basevertex);
     void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride);
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride);
     void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
     void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                      const void* indices, GLint basevertex);
@@ -46,8 +49,17 @@ namespace MobileGL::MG_Backend::DirectGLES {
                                          GLuint baseinstance);
     void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
     void DrawArraysIndirect(GLenum mode, const void* indirect);
+    void ClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                 GLenum buffer, GLint drawbuffer, const GLfloat* value);
+    void ClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                 GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
                          GLint dstY1, GLbitfield mask, GLenum filter);
+    void BlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                              const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                              GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                              GLbitfield mask, GLenum filter);
     void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
                         GLsizei height, GLint border);
     void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width,
@@ -56,7 +68,26 @@ namespace MobileGL::MG_Backend::DirectGLES {
     const GLubyte* GetString(GLenum name);
     void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels);
     void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+    void DispatchComputeIndirect(GLintptr indirect);
+    void MemoryBarrier(GLbitfield barriers);
+    void MemoryBarrierByRegion(GLbitfield barriers);
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format);
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data);
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data);
+    void GetProgramiv(GLuint program, GLenum pname, GLint* params);
+    void GetProgramInterfaceiv(GLuint program, GLenum programInterface, GLenum pname, GLint* params);
+    GLuint GetProgramResourceIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void GetProgramResourceName(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei* length,
+                                GLchar* name);
+    void GetProgramResourceiv(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                              const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params);
+    GLint GetProgramResourceLocation(GLuint program, GLenum programInterface, const GLchar* name);
+    GLint GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void ShaderStorageBlockBinding(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
     Bool InitWindowSurface(NativeWindowType window);
+    Bool InitPbufferSurface(EGLint width, EGLint height);
     void Present();
     void SetEGLFuncsTable(const MG_External::EGLFunctionsTable& eglFuncs);
     void SetGLESFuncsTable(const MG_External::GLESFunctionsTable& glesFuncs);

MobileGL/MG_Backend/DirectGLES/Managers.cpp

@@ -23,9 +23,63 @@
 #include <MG_Util/Converters/GLToMG/FramebufferEnumConverter.h>
 #include <MG_Util/Converters/MGToGL/FramebufferEnumConverter.h>
 #include <MG_State/GLState/FramebufferState/FramebufferObject.h>
+#include <cctype>
 
 namespace MobileGL::MG_Backend::DirectGLES {
     constexpr Bool PREFER_MAP_BUFFER_RANGE_FOR_BUFFER_SYNC = true;
+    constexpr const char* BASE_INSTANCE_UNIFORM_NAME = "mg_BaseInstance";
+
+    static Uint ResolveBackendEsslVersion() {
+        const auto& version = g_GLESCapabilities.GLESVersion;
+        if (version.Major > 3 || (version.Major == 3 && version.Minor >= 2)) {
+            return 320;
+        }
+        if (version.Major == 3 && version.Minor >= 1) {
+            return 310;
+        }
+        return 300;
+    }
+
+    String ReplaceIdentifier(String source, const String& from, const String& to) {
+        SizeT pos = 0;
+        while ((pos = source.find(from, pos)) != String::npos) {
+            const Bool leftIsIdent = pos > 0 &&
+                (std::isalnum(static_cast<unsigned char>(source[pos - 1])) || source[pos - 1] == '_');
+            const SizeT end = pos + from.size();
+            const Bool rightIsIdent = end < source.size() &&
+                (std::isalnum(static_cast<unsigned char>(source[end])) || source[end] == '_');
+            if (!leftIsIdent && !rightIsIdent) {
+                source.replace(pos, from.size(), to);
+                pos += to.size();
+            } else {
+                pos = end;
+            }
+        }
+        return source;
+    }
+
+    String InjectUniformAfterVersion(String source, const String& declaration) {
+        const SizeT versionPos = source.find("#version");
+        if (versionPos == String::npos) {
+            return declaration + "\n" + source;
+        }
+
+        const SizeT lineEnd = source.find('\n', versionPos);
+        if (lineEnd == String::npos) {
+            return source + "\n" + declaration + "\n";
+        }
+        source.insert(lineEnd + 1, declaration + "\n");
+        return source;
+    }
+
+    String EmulateBaseInstanceInVertexShader(String source, GLenum shaderType) {
+        if (shaderType != GL_VERTEX_SHADER || source.find("gl_BaseInstance") == String::npos) {
+            return source;
+        }
+        source = ReplaceIdentifier(std::move(source), "gl_BaseInstance", BASE_INSTANCE_UNIFORM_NAME);
+        return InjectUniformAfterVersion(std::move(source),
+                                         String("uniform highp int ") + BASE_INSTANCE_UNIFORM_NAME + ";");
+    }
 
     namespace BufferImpl {
         BackendBufferObject::BackendBufferObject() {
@@ -194,10 +248,34 @@ namespace MobileGL::MG_Backend::DirectGLES {
     } // namespace BufferImpl
 
     namespace VertexArrayImpl {
+        namespace {
+            SizeT GetDataTypeSize(DataType type) {
+                switch (type) {
+                case DataType::Int8:
+                case DataType::Uint8:
+                    return 1;
+                case DataType::Int16:
+                case DataType::Uint16:
+                case DataType::Float16:
+                    return 2;
+                case DataType::Int32:
+                case DataType::Uint32:
+                case DataType::Float32:
+                case DataType::Fixed32:
+                    return 4;
+                case DataType::Float64:
+                    return 8;
+                default:
+                    return 0;
+                }
+            }
+        } // namespace
+
         BackendVertexArrayObject::BackendVertexArrayObject() {
 #ifdef TRACY_ENABLE
             ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
 #endif
+            m_clientAttributeBufferIds.fill(0);
             g_GLESFuncs.glGenVertexArrays(1, &m_backendVAOId);
             if (m_backendVAOId == 0) {
                 MGLOG_E("Failed to generate vertex array object.");
@@ -207,6 +285,19 @@ namespace MobileGL::MG_Backend::DirectGLES {
             }
         }
 
+        BackendVertexArrayObject::~BackendVertexArrayObject() {
+            if (m_backendVAOId != 0) {
+                g_GLESFuncs.glDeleteVertexArrays(1, &m_backendVAOId);
+                m_backendVAOId = 0;
+            }
+            for (auto& bufferId : m_clientAttributeBufferIds) {
+                if (bufferId != 0) {
+                    g_GLESFuncs.glDeleteBuffers(1, &bufferId);
+                    bufferId = 0;
+                }
+            }
+        }
+
         void BackendVertexArrayObject::Bind() const {
 #ifdef TRACY_ENABLE
             ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
@@ -214,21 +305,22 @@ namespace MobileGL::MG_Backend::DirectGLES {
             g_GLESFuncs.glBindVertexArray(m_backendVAOId);
         }
 
-        inline void BindAttributeBuffer(const MG_State::GLState::VertexAttribute& attrib) {
+        inline Bool BindAttributeBuffer(const MG_State::GLState::VertexAttribute& attrib) {
             const auto& bufferObject = attrib.Buffer;
             if (!bufferObject) {
                 MGLOG_W("Attribute has no bound buffer, skipping.");
-                return;
+                return false;
             }
 
             const auto& backendBufferIt = BufferImpl::g_backendBufferObjects.find(bufferObject.get());
             if (backendBufferIt == BufferImpl::g_backendBufferObjects.end()) {
                 MGLOG_E("No backend buffer found for attribute's buffer, cannot bind attribute.");
-                return;
+                return false;
             }
             const auto& backendBufferObject = backendBufferIt->second;
 
             backendBufferObject->Bind(GL_ARRAY_BUFFER);
+            return true;
         }
 
         void BackendVertexArrayObject::SyncToBackend(
@@ -266,7 +358,9 @@ namespace MobileGL::MG_Backend::DirectGLES {
                                        m_syncedAttributeVersions[attribIndex].BufferVersion;
                 if (!needsSyncFormat && !needsSyncBuffer) continue;
 
-                BindAttributeBuffer(attrib);
+                if (!BindAttributeBuffer(attrib)) {
+                    continue;
+                }
 
                 if (!attrib.IsInteger) {
                     g_GLESFuncs.glVertexAttribPointer(
@@ -286,21 +380,81 @@ namespace MobileGL::MG_Backend::DirectGLES {
             Uint16 currentIndexBufferVersion = stateVAOObject->GetIndexBufferBindingSlot().GetVersion();
             if (currentIndexBufferVersion != m_syncedIndexBufferVersion) {
                 const auto& indexBufferBinding = stateVAOObject->GetIndexBufferBindingSlot().GetBoundObject();
+                Bool indexBufferSynced = false;
                 if (indexBufferBinding) {
                     const auto& backendBufferIt = BufferImpl::g_backendBufferObjects.find(indexBufferBinding.get());
                     if (backendBufferIt != BufferImpl::g_backendBufferObjects.end()) {
                         const auto& backendBufferObject = backendBufferIt->second;
                         backendBufferObject->Bind(GL_ELEMENT_ARRAY_BUFFER);
+                        indexBufferSynced = true;
                     } else {
                         MGLOG_W("No backend buffer found for index buffer binding, cannot bind index buffer.");
                     }
+                } else {
+                    g_GLESFuncs.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
+                    indexBufferSynced = true;
+                }
+
+                if (indexBufferSynced) {
+                    m_syncedIndexBufferVersion = currentIndexBufferVersion;
                 }
-                m_syncedIndexBufferVersion = currentIndexBufferVersion;
             }
 
             m_syncedAttributeVersions = allAttributeVersions;
         }
 
+        void BackendVertexArrayObject::SyncClientSideAttributesForDrawArrays(
+            const SharedPtr<MG_State::GLState::VertexArrayObject>& stateVAOObject, GLint first, GLsizei count) {
+            if (!stateVAOObject || count <= 0 || first < 0) {
+                return;
+            }
+
+            Bind();
+
+            const auto& allAttributes = stateVAOObject->GetAllAttributes();
+            for (Uint attribIndex = 0; attribIndex < allAttributes.size(); ++attribIndex) {
+                const auto& attrib = allAttributes[attribIndex];
+                if (!attrib.Enabled || attrib.Buffer) {
+                    continue;
+                }
+
+                const auto* clientData = reinterpret_cast<const Uint8*>(attrib.Offset);
+                const SizeT componentSize = GetDataTypeSize(attrib.Type);
+                if (!clientData || componentSize == 0 || attrib.Size <= 0) {
+                    continue;
+                }
+
+                const SizeT elementSize = componentSize * static_cast<SizeT>(attrib.Size);
+                const SizeT stride = attrib.Stride > 0 ? static_cast<SizeT>(attrib.Stride) : elementSize;
+                const SizeT uploadSize = static_cast<SizeT>(first + count - 1) * stride + elementSize;
+
+                auto& bufferId = m_clientAttributeBufferIds[attribIndex];
+                if (bufferId == 0) {
+                    g_GLESFuncs.glGenBuffers(1, &bufferId);
+                    if (bufferId == 0) {
+                        MGLOG_E("Failed to create client-side vertex attribute upload buffer.");
+                        continue;
+                    }
+                }
+
+                g_GLESFuncs.glBindBuffer(GL_ARRAY_BUFFER, bufferId);
+                g_GLESFuncs.glBufferData(GL_ARRAY_BUFFER, static_cast<GLsizeiptr>(uploadSize), clientData,
+                                         GL_STREAM_DRAW);
+
+                if (!attrib.IsInteger) {
+                    g_GLESFuncs.glVertexAttribPointer(
+                        attribIndex, attrib.Size, MG_Util::ConvertDataTypeToGLEnum(attrib.Type),
+                        attrib.Normalized ? GL_TRUE : GL_FALSE, static_cast<GLsizei>(stride), nullptr);
+                } else {
+                    g_GLESFuncs.glVertexAttribIPointer(attribIndex, attrib.Size,
+                                                       MG_Util::ConvertDataTypeToGLEnum(attrib.Type),
+                                                       static_cast<GLsizei>(stride), nullptr);
+                }
+            }
+
+            BufferImpl::g_boundVertexBufferObject = nullptr;
+        }
+
         StateBackendObjectRegistry<MG_State::GLState::VertexArrayObject, BackendVertexArrayObject>
             g_backendVertexArrayObjects;
     } // namespace VertexArrayImpl
@@ -518,13 +672,15 @@ namespace MobileGL::MG_Backend::DirectGLES {
                     static_cast<MG_State::GLState::TextureObjectBuffer*>(stateTextureObject.get());
                 auto& slot = textureBufferObject->GetBufferBindingSlot();
                 auto& buffer = slot.GetBoundObject();
+                if (!buffer) {
+                    MGLOG_D("Texture buffer object with ID: %u has no bound buffer, skipping sync.",
+                            stateTextureObject->GetExternalIndex());
+                    return;
+                }
                 auto bufferIndex = buffer->GetExternalIndex();
                 currentTextureInfo.bufferExternalIndex = bufferIndex;
 
                 Bool needsRegeneration = !m_isInitialized || (currentTextureInfo != m_prevTextureInfo);
-                MGLOG_D("Texture state changed significantly or not initialized, regenerating texture (tex buffer) "
-                        "with ID: %u",
-                        m_backendTextureId);
 
                 // Need to sync texture buffer if not synced yet
                 auto& backendBuffers = BufferImpl::g_backendBufferObjects;
@@ -548,7 +704,19 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 TextureImpl::GenerateTextureFormatInfo(textureBufferObject->GetFormat(), &glInternalFormat, &glFormat,
                                                        &glType);
 
-                g_GLESFuncs.glTexBuffer(GL_TEXTURE_BUFFER, glInternalFormat, backendId);
+                if (needsRegeneration) {
+                    MGLOG_D("Texture state changed significantly or not initialized, regenerating texture buffer with "
+                            "ID: %u, buffer ID: %u, buffer size: %zu, format: %s",
+                            m_backendTextureId, backendId, buffer->GetSize(),
+                            MG_Util::ConvertGLEnumToString(glInternalFormat).c_str());
+                    g_GLESFuncs.glTexBuffer(GL_TEXTURE_BUFFER, glInternalFormat, backendId);
+                    DebugImpl::ErrorLopper::Loop(
+                        [file = __FILE__, line = __LINE__, func = __func__, glInternalFormat, backendId](GLenum err) {
+                            MGLOG_D("%s(%s:%d) glTexBuffer(format=%s, buffer=%u) ES error: %s",
+                                    func, file, line, MG_Util::ConvertGLEnumToString(glInternalFormat).c_str(),
+                                    backendId, MG_Util::ConvertGLEnumToString(err).c_str());
+                        });
+                }
                 break;
             }
             default:
@@ -637,7 +805,11 @@ namespace MobileGL::MG_Backend::DirectGLES {
 
             SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapS, GL_TEXTURE_WRAP_S, WrapMode)
             SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapT, GL_TEXTURE_WRAP_T, WrapMode)
-            SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapR, GL_TEXTURE_WRAP_R, WrapMode)
+            if (SupportsWrapR(targetInternal)) {
+                SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapR, GL_TEXTURE_WRAP_R, WrapMode)
+            } else {
+                m_cacheSamplerParameters.wrapR = samplerParams.wrapR;
+            }
             SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(compareFunc, GL_TEXTURE_COMPARE_FUNC, CompareFunc)
             SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(compareMode, GL_TEXTURE_COMPARE_MODE, CompareMode)
             if (m_cacheSamplerParameters.minLod != samplerParams.minLod) {
@@ -790,17 +962,37 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 g_GLESFuncs.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_backendFBOId);
         }
 
+        void BackendFramebufferObject::InvalidateSyncedState() {
+            std::fill(std::begin(m_frontendDrawBuffers), std::end(m_frontendDrawBuffers),
+                      FramebufferAttachmentType::Unknown);
+            std::fill(std::begin(m_backendDrawBuffers), std::end(m_backendDrawBuffers), GL_NONE);
+            m_frontendReadBuffer = FramebufferAttachmentType::Unknown;
+            m_backendReadBuffer = GL_NONE;
+            std::fill(m_syncedFrontendAttachmentVersions.begin(), m_syncedFrontendAttachmentVersions.end(),
+                      static_cast<Uint16>(~0u));
+        }
+
         static Bool SyncAttachmentObject(GLenum glFBOTarget,
                                          const MG_State::GLState::FramebufferAttachmentObject& attachmentObject,
                                          GLenum glBackendAttachment) {
             if (attachmentObject.IsTexture()) {
                 const auto& textureObject = attachmentObject.GetTexture();
+                SharedPtr<TextureImpl::BackendTextureObject> backendTextureObject;
                 const auto& backendTextureIt = TextureImpl::g_backendTextureObjects.find(textureObject.get());
                 if (backendTextureIt == TextureImpl::g_backendTextureObjects.end()) {
+                    auto& backendTextureSlot = TextureImpl::g_backendTextureObjects.GetOrCreate(textureObject);
+                    if (!backendTextureSlot) {
+                        backendTextureSlot = MakeShared<TextureImpl::BackendTextureObject>();
+                    }
+                    backendTextureObject = backendTextureSlot;
+                } else {
+                    backendTextureObject = backendTextureIt->second;
+                }
+                if (!backendTextureObject) {
                     MGLOG_E("%s: No backend texture found for FBO attachment, cannot bind texture.", __func__);
                     return false;
                 }
-                const auto& backendTextureObject = backendTextureIt->second;
+                backendTextureObject->SyncMipmapsToBackend(textureObject);
                 auto glTextureTarget = MG_Util::ConvertTextureTargetToGLEnum(textureObject->GetTarget());
                 backendTextureObject->Bind(glTextureTarget);
                 g_GLESFuncs.glFramebufferTexture2D(glFBOTarget, glBackendAttachment, glTextureTarget,
@@ -908,8 +1100,9 @@ namespace MobileGL::MG_Backend::DirectGLES {
 
                 // relevant FRONTEND!!! version should be checked and updated
                 if (m_syncedFrontendAttachmentVersions[i] != attachmentVersions[i]) {
-                    SyncAttachmentObject(glFBOTarget, attachmentObject, glBackendAttachment);
+                    if (SyncAttachmentObject(glFBOTarget, attachmentObject, glBackendAttachment)) {
-                    m_syncedFrontendAttachmentVersions[i] = attachmentVersions[i];
+                        m_syncedFrontendAttachmentVersions[i] = attachmentVersions[i];
+                    }
                 }
 #if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
                 else {
@@ -921,6 +1114,9 @@ namespace MobileGL::MG_Backend::DirectGLES {
                             MG_Util::ConvertFramebufferAttachmentTypeToString(frontendType).c_str(),
                             MG_Util::ConvertGLEnumToString(glBackendAttachment).c_str(),
                             m_syncedFrontendAttachmentVersions[i]);
+                    if (!attachmentObject.IsTexture() && !attachmentObject.IsRenderbuffer()) {
+                        continue;
+                    }
                     GLint objectType = GL_NONE;
                     g_GLESFuncs.glGetFramebufferAttachmentParameteriv(
                         glFBOTarget, glBackendAttachment, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &objectType);
@@ -1075,13 +1271,14 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 String source;
                 auto& spirvCode = shaderSpirvs[index];
 
-                MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirvCode);
+                MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirvCode,
+                    MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
 
                 spvc_compiler_options options;
                 spvcSession.CreateOptions(&options);
 
-                // TODO: check ESSL version supported by backend driver
+                spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION,
-                spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, 320);
+                                               ResolveBackendEsslVersion());
                 spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_TRUE);
                 spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, SPVC_FALSE);
 
@@ -1103,6 +1300,8 @@ namespace MobileGL::MG_Backend::DirectGLES {
 
                 source = RemoveLayoutBinding(source);
                 source = ProcessOutColorLocations(source);
+                source = ForceFlatIntegerVaryings(source, glShaderType);
+                source = EmulateBaseInstanceInVertexShader(std::move(source), glShaderType);
                 source = ForceSupporterOutput(source);
 
                 // Patch for Photon compiler precision issue
@@ -1153,6 +1352,8 @@ namespace MobileGL::MG_Backend::DirectGLES {
             } else {
                 MGLOG_D("Program linked successfully. ID: %u", m_backendProgramId);
             }
+            m_baseInstanceUniformLocation = g_GLESFuncs.glGetUniformLocation(m_backendProgramId,
+                                                                             BASE_INSTANCE_UNIFORM_NAME);
 
             // Create global UBO
             if (stateProgramObject->GetUBOSize() > 0) {
@@ -1175,6 +1376,13 @@ namespace MobileGL::MG_Backend::DirectGLES {
             MGLOG_D("Using program %u", m_backendProgramId);
             g_GLESFuncs.glUseProgram(m_backendProgramId);
         }
+
+        void BackendProgramObjectImpl::SetBaseInstance(Uint32 baseInstance) const {
+            if (m_baseInstanceUniformLocation < 0) {
+                return;
+            }
+            g_GLESFuncs.glUniform1i(m_baseInstanceUniformLocation, static_cast<GLint>(baseInstance));
+        }
     } // namespace PrgramImpl
 
     namespace SamplerImpl {

MobileGL/MG_Backend/DirectGLES/Managers.h

@@ -15,6 +15,8 @@
 #include <MG_State/GLState/Core.h>
 
 namespace MobileGL::MG_Backend::DirectGLES {
+    String EmulateBaseInstanceInVertexShader(String source, GLenum shaderType);
+
     template <typename StateObject, typename BackendObject>
     class StateBackendObjectRegistry {
     public:
@@ -137,12 +139,16 @@ namespace MobileGL::MG_Backend::DirectGLES {
         class BackendVertexArrayObject {
         public:
             BackendVertexArrayObject();
+            ~BackendVertexArrayObject();
             void SyncToBackend(const SharedPtr<MG_State::GLState::VertexArrayObject>& stateVAOObject);
+            void SyncClientSideAttributesForDrawArrays(
+                const SharedPtr<MG_State::GLState::VertexArrayObject>& stateVAOObject, GLint first, GLsizei count);
             Uint GetBackendVertexArrayId() const { return m_backendVAOId; }
             void Bind() const;
 
         private:
             Uint m_backendVAOId = 0;
+            Array<Uint, MG_State::GLState::VertexArrayObject::MAX_VERTEX_ATTRIBS> m_clientAttributeBufferIds;
             Bool m_isInitialized = false;
             Uint16 m_syncedIndexBufferVersion = 0;
             Array<MG_State::GLState::VertexAttributeVersion, MG_State::GLState::VertexArrayObject::MAX_VERTEX_ATTRIBS>
@@ -162,6 +168,10 @@ namespace MobileGL::MG_Backend::DirectGLES {
             return true;
         }
 
+        inline Bool SupportsWrapR(TextureTarget target) {
+            return target == TextureTarget::Texture3D || target == TextureTarget::TextureCubeMap;
+        }
+
         struct StateTextureBasicInfo { // Used for tracking texture state changes
             TextureInternalFormat internalFormat = TextureInternalFormat::Unknown;
             SizeT width = 0;
@@ -218,6 +228,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
             BackendFramebufferObject();
             void SyncToBackend(const SharedPtr<MG_State::GLState::FramebufferObject>& stateFBOObject,
                                FramebufferTarget asTarget);
+            void InvalidateSyncedState();
             Uint GetBackendFramebufferId() const { return m_backendFBOId; }
             void Bind(FramebufferTarget target) const;
             //            FramebufferAttachmentType GetCompactedAttachmentTypeAtDrawBufferIndex(Int index);
@@ -259,12 +270,14 @@ namespace MobileGL::MG_Backend::DirectGLES {
             ~BackendProgramObjectImpl();
             void SyncToBackend(const SharedPtr<MG_State::GLState::ProgramObject>& stateProgramObject);
             void Use() const;
+            void SetBaseInstance(Uint32 baseInstance) const;
             Uint GetBackendProgramId() const { return m_backendProgramId; }
             Uint GetBackendGlobalUBOId() const { return m_backendGlobalUBOId; }
 
         private:
             Uint m_backendProgramId = 0;
             Uint m_backendGlobalUBOId = 0;
+            Int m_baseInstanceUniformLocation = -1;
             Bool m_isInitialized = false;
         };
 

MobileGL/MG_Backend/DirectGLES/Utils.cpp

@@ -101,6 +101,37 @@ namespace MobileGL::MG_Backend::DirectGLES {
             return result;
         }
 
+        String ForceFlatIntegerVaryings(const String& glslCode, GLenum shaderType) {
+#ifdef TRACY_ENABLE
+            ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
+#endif
+            String result = glslCode;
+            const String integerType = R"((?:(?:lowp|mediump|highp)\s+)?(?:u?int|[iu]vec[234])\b)";
+
+            auto addFlatQualifier = [&result, &integerType](const String& qualifier) {
+                const std::regex pattern("(layout\\s*\\([^)]*\\)\\s*)(?!(?:flat|smooth|noperspective)\\s)(" +
+                                         qualifier + "\\s+" + integerType + ")");
+                result = std::regex_replace(result, pattern, "$1flat $2");
+            };
+
+            switch (shaderType) {
+            case GL_VERTEX_SHADER:
+                addFlatQualifier("out");
+                break;
+            case GL_GEOMETRY_SHADER:
+                addFlatQualifier("in");
+                addFlatQualifier("out");
+                break;
+            case GL_FRAGMENT_SHADER:
+                addFlatQualifier("in");
+                break;
+            default:
+                break;
+            }
+
+            return result;
+        }
+
         String RemoveLayoutBinding(const String& glslCode) {
 #ifdef TRACY_ENABLE
             ZoneScopedC(TRACY_ZONECOLOR_BACKEND);

MobileGL/MG_Backend/DirectGLES/Utils.h

@@ -43,6 +43,7 @@ namespace MobileGL::MG_Backend::DirectGLES {
     namespace PrgramImpl {
         String ProcessOutColorLocations(const String& glslCode);
         String ForceSupporterOutput(const String& glslCode);
+        String ForceFlatIntegerVaryings(const String& glslCode, GLenum shaderType);
         String RemoveLayoutBinding(const String& glslCode);
     } // namespace PrgramImpl
 

MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.cpp

@@ -19,6 +19,27 @@ namespace MobileGL::MG_Backend::DirectVulkan {
 
     BackendObject_DirectVulkan::~BackendObject_DirectVulkan() = default;
 
+    BackendObject_DirectVulkan::BackendObject_DirectVulkan():
+        m_rendererInfo{
+            .RendererName = "Magma",
+            .BackendName = "Direct (Vulkan)",
+            .ExtraVendor = Nullopt,
+            .RendererGLInfo =
+                {
+                    .TargetGLVersion = {3, 3, 0},
+                    .TargetGLSLVersion = {4, 6, 0},
+                    .Extensions = {V_OpenGL30, V_OpenGL31, V_OpenGL32,
+                                   V_OpenGL33, E_GL_ARB_draw_buffers_blend, E_GL_ARB_compute_shader,
+                                   E_GL_ARB_shader_storage_buffer_object, E_GL_ARB_shader_image_load_store,
+                                   E_GL_ARB_program_interface_query, E_GL_ARB_framebuffer_object,
+                                   E_GL_ARB_multi_draw_indirect, E_GL_ARB_indirect_parameters,
+                                   E_GL_EXT_framebuffer_object, E_GL_ARB_depth_texture, E_GL_ARB_buffer_storage,
+                                   E_GL_ARB_texture_storage, E_GL_ARB_direct_state_access,
+                                   E_GL_ARB_shader_draw_parameters, E_GL_ARB_gpu_shader_int64},
+                    .IsCompatibilityProfile = false
+                },
+            .StaticBackendCapability = {.AllowVSOnlyPrograms = false}} {}
+
     Bool BackendObject_DirectVulkan::InitWindowSurface() {
         if (!m_windowHandle.Handle) {
             MGLOG_E("Cannot initialize DirectVulkan window surface: native window handle is null");
@@ -47,8 +68,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             return false;
         }
 
-        MG_Util::BackendLoader::FillInVulkanCapabilities(m_vulkanCaps, pVulkanRenderer->GetPhysicalDevice().properties);
+        const auto& physicalDevice = pVulkanRenderer->GetPhysicalDevice();
+        if (!MG_Util::BackendLoader::QueryVulkanCapabilities(m_vulkanCaps, pVulkanRenderer->GetInstance(),
+                                                             physicalDevice.handle)) {
+            MGLOG_W("DirectVulkan: failed to query extended Vulkan capabilities, using basic properties");
+            MG_Util::BackendLoader::FillInVulkanCapabilities(m_vulkanCaps, physicalDevice.properties);
+        }
         UpdateDynamicBackendParameters();
+        UpdateAdvertisedExtensions();
         return true;
     }
 
@@ -66,18 +93,18 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             MGLOG_E("DirectVulkan backend not initialized");
             return false;
         }
-        if (handle.Backend != WindowBackend::Android || !handle.Handle) {
+        if (!handle.Handle || (handle.Backend != WindowBackend::Android && handle.Backend != WindowBackend::X11)) {
-            MGLOG_E("DirectVulkan backend only supports Android native windows");
+            MGLOG_E("DirectVulkan backend only supports Android and X11 native windows");
             return false;
         }
 
-        const Bool sameHandle =
+        const Bool sameHandle = m_eglSurfaceInitialized && m_eglSurfaceKind == SurfaceKind::Window &&
-            m_eglWindowSurfaceInitialized && m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle;
+                                m_windowHandle.Backend == handle.Backend && m_windowHandle.Handle == handle.Handle;
         if (sameHandle) {
             return true;
         }
 
-        if (m_eglWindowSurfaceInitialized || pVulkanRenderer) {
+        if (m_eglSurfaceInitialized || pVulkanRenderer) {
             pVulkanRenderer.reset();
             ResetEGLRuntimeState();
         }
@@ -106,22 +133,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         return BackendObject::SwapEGLBuffers(dpy, draw);
     }
 
+    void BackendObject_DirectVulkan::ReleaseEGLResources() {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        pVulkanRenderer.reset();
+        BackendObject::ReleaseEGLResources();
+    }
+
     const RendererInfo& BackendObject_DirectVulkan::GetRendererInfo() const {
-        static RendererInfo RendererInfo = {
+        return m_rendererInfo;
-            .RendererName = "Magma",          // Renderer Name
-            .BackendName = "Direct (Vulkan)", // Backend Name
-            .ExtraVendor = Nullopt,           // Extra vendor
-            .RendererGLInfo =
-                {
-                    .TargetGLVersion = {3, 3, 0},                      // Target OpenGL Version
-                    .TargetGLSLVersion = {4, 6, 0},                    // Target Shading Language Version
-                    .Extensions = {V_OpenGL30, V_OpenGL31, V_OpenGL32, // OpenGL Extensions
-                                   V_OpenGL33},
-                    .IsCompatibilityProfile = false // Is Compatibility Profile
-                },
-            .StaticBackendCapability = {.AllowVSOnlyPrograms = false} // Backend Capability
-        };
-        return RendererInfo;
     }
 
     String BackendObject_DirectVulkan::GetBackendAPIVersionString() const {
@@ -151,6 +170,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             funcsTable.GL.MultiDrawElementsBaseVertex = MultiDrawElementsBaseVertex;
             funcsTable.GL.MultiDrawElementsIndirect = MultiDrawElementsIndirect;
             funcsTable.GL.MultiDrawArraysIndirect = MultiDrawArraysIndirect;
+            funcsTable.GL.MultiDrawElementsIndirectCount = MultiDrawElementsIndirectCount;
+            funcsTable.GL.MultiDrawArraysIndirectCount = MultiDrawArraysIndirectCount;
             funcsTable.GL.DrawRangeElementsBaseVertex = DrawRangeElementsBaseVertex;
             funcsTable.GL.DrawRangeElements = DrawRangeElements;
             funcsTable.GL.DrawElementsInstancedBaseVertexBaseInstance = DrawElementsInstancedBaseVertexBaseInstance;
@@ -166,12 +187,31 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             funcsTable.GL.ClearBufferfv = ClearBufferfv;
             funcsTable.GL.ClearBufferuiv = ClearBufferuiv;
             funcsTable.GL.ClearBufferiv = ClearBufferiv;
+            funcsTable.GL.ClearNamedFramebufferfv = ClearNamedFramebufferfv;
+            funcsTable.GL.ClearNamedFramebufferfi = ClearNamedFramebufferfi;
             funcsTable.GL.BlitFramebuffer = BlitFramebuffer;
+            funcsTable.GL.BlitNamedFramebuffer = BlitNamedFramebuffer;
             funcsTable.GL.CopyTexImage2D = CopyTexImage2D;
             funcsTable.GL.CopyTexSubImage2D = CopyTexSubImage2D;
             funcsTable.GL.GenerateMipmap = GenerateMipmap;
             funcsTable.GL.ReadPixels = ReadPixels;
             funcsTable.GL.GetTexImage = GetTexImage;
+            funcsTable.GL.GetTextureImage = GetTextureImage;
+            funcsTable.GL.DispatchCompute = DispatchCompute;
+            funcsTable.GL.DispatchComputeIndirect = DispatchComputeIndirect;
+            funcsTable.GL.MemoryBarrier = MemoryBarrier;
+            funcsTable.GL.MemoryBarrierByRegion = MemoryBarrierByRegion;
+            funcsTable.GL.BindImageTexture = BindImageTexture;
+            funcsTable.GL.GetIntegeri_v = GetIntegeri_v;
+            funcsTable.GL.GetInteger64i_v = GetInteger64i_v;
+            funcsTable.GL.GetProgramiv = GetProgramiv;
+            funcsTable.GL.GetProgramInterfaceiv = GetProgramInterfaceiv;
+            funcsTable.GL.GetProgramResourceIndex = GetProgramResourceIndex;
+            funcsTable.GL.GetProgramResourceName = GetProgramResourceName;
+            funcsTable.GL.GetProgramResourceiv = GetProgramResourceiv;
+            funcsTable.GL.GetProgramResourceLocation = GetProgramResourceLocation;
+            funcsTable.GL.GetProgramResourceLocationIndex = GetProgramResourceLocationIndex;
+            funcsTable.GL.ShaderStorageBlockBinding = ShaderStorageBlockBinding;
             funcsTableInitialized = true;
         }
         return funcsTable;
@@ -181,7 +221,85 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         return m_dynamicParameters;
     }
 
+    void BackendObject_DirectVulkan::ApplyVulkanCapabilitiesForTesting(
+        const MG_External::VulkanCapabilities& capabilities) {
+        m_vulkanCaps = capabilities;
+        UpdateDynamicBackendParameters();
+        UpdateAdvertisedExtensions();
+    }
+
+    void BackendObject_DirectVulkan::UpdateAdvertisedExtensions() {
+        auto& extensions = m_rendererInfo.RendererGLInfo.Extensions;
+        extensions.erase(std::remove(extensions.begin(), extensions.end(), E_GL_KHR_shader_subgroup),
+                         extensions.end());
+
+        if (m_vulkanCaps.SupportsShaderSubgroup) {
+            extensions.push_back(E_GL_KHR_shader_subgroup);
+        }
+    }
+
     void BackendObject_DirectVulkan::UpdateDynamicBackendParameters() {
+        const auto mapShaderStages = [](Uint32 vkStages) {
+            Uint32 glStages = 0;
+            if ((vkStages & VK_SHADER_STAGE_VERTEX_BIT) != 0) glStages |= GL_VERTEX_SHADER_BIT;
+            if ((vkStages & VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT) != 0) glStages |= GL_TESS_CONTROL_SHADER_BIT;
+            if ((vkStages & VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT) != 0) {
+                glStages |= GL_TESS_EVALUATION_SHADER_BIT;
+            }
+            if ((vkStages & VK_SHADER_STAGE_GEOMETRY_BIT) != 0) glStages |= GL_GEOMETRY_SHADER_BIT;
+            if ((vkStages & VK_SHADER_STAGE_FRAGMENT_BIT) != 0) glStages |= GL_FRAGMENT_SHADER_BIT;
+            if ((vkStages & VK_SHADER_STAGE_COMPUTE_BIT) != 0) glStages |= GL_COMPUTE_SHADER_BIT;
+            return glStages;
+        };
+
+        const auto mapSubgroupFeatures = [](Uint32 vkFeatures) {
+            Uint32 glFeatures = 0;
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_BASIC_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_BASIC_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_VOTE_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_VOTE_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_ARITHMETIC_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_ARITHMETIC_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_BALLOT_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_BALLOT_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_SHUFFLE_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_SHUFFLE_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_CLUSTERED_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_CLUSTERED_BIT_KHR;
+            }
+            if ((vkFeatures & VK_SUBGROUP_FEATURE_QUAD_BIT) != 0) {
+                glFeatures |= GL_SUBGROUP_FEATURE_QUAD_BIT_KHR;
+            }
+            return glFeatures;
+        };
+
+        static constexpr SizeT kMaxAdvertisedShaderStorageBlockSize = 512ull * 1024ull * 1024ull;
         m_dynamicParameters.UniformBufferOffsetAlignment = m_vulkanCaps.UniformBufferOffsetAlignment;
+        m_dynamicParameters.MaxShaderStorageBlockSize =
+            std::min(m_vulkanCaps.MaxShaderStorageBlockSize, kMaxAdvertisedShaderStorageBlockSize);
+        if (m_vulkanCaps.SupportsShaderSubgroup) {
+            m_dynamicParameters.SubgroupSize = m_vulkanCaps.SubgroupSize;
+            m_dynamicParameters.SubgroupSupportedStages = mapShaderStages(m_vulkanCaps.SubgroupSupportedStages);
+            m_dynamicParameters.SubgroupSupportedFeatures = mapSubgroupFeatures(m_vulkanCaps.SubgroupSupportedOperations);
+            m_dynamicParameters.SubgroupQuadOperationsInAllStages = m_vulkanCaps.SubgroupQuadOperationsInAllStages;
+        } else {
+            m_dynamicParameters.SubgroupSize = 0;
+            m_dynamicParameters.SubgroupSupportedStages = 0;
+            m_dynamicParameters.SubgroupSupportedFeatures = 0;
+            m_dynamicParameters.SubgroupQuadOperationsInAllStages = false;
+        }
+        if (m_dynamicParameters.MaxShaderStorageBlockSize != m_vulkanCaps.MaxShaderStorageBlockSize) {
+            MGLOG_I("DirectVulkan: clamped GL_MAX_SHADER_STORAGE_BLOCK_SIZE from %zu to %zu",
+                    m_vulkanCaps.MaxShaderStorageBlockSize,
+                    m_dynamicParameters.MaxShaderStorageBlockSize);
+        }
     }
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.h

@@ -14,6 +14,7 @@
 namespace MobileGL::MG_Backend::DirectVulkan {
     class BackendObject_DirectVulkan : public BackendObject {
     public:
+        BackendObject_DirectVulkan();
         ~BackendObject_DirectVulkan() override;
 
         void Initialize() override;
@@ -23,18 +24,22 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Bool CreateEGLWindowSurface(const WindowHandle& handle) override;
         Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) override;
         Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw) override;
+        void ReleaseEGLResources() override;
 
         const RendererInfo& GetRendererInfo() const override;
         String GetBackendAPIVersionString() const override;
         const GlobalBackendFunctionsTable& GetBackendFunctions() const override;
         const DynamicBackendParameters& GetDynamicParameters() const override;
         BackendType GetBackendType() const override;
+        void ApplyVulkanCapabilitiesForTesting(const MG_External::VulkanCapabilities& capabilities);
 
     private:
+        void UpdateAdvertisedExtensions();
         void UpdateDynamicBackendParameters();
 
         Bool m_initialized = false;
         DynamicBackendParameters m_dynamicParameters;
         MG_External::VulkanCapabilities m_vulkanCaps;
+        RendererInfo m_rendererInfo;
     };
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/DirectVulkan.cpp

@@ -7,23 +7,267 @@
 // End of Source File Header
 
 #include "DirectVulkan.h"
+#include "DirectVulkanResourceState.h"
 #include "MG_State/GLState/Core.h"
 #include "MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h"
+#include "MG_Util/Miscellany/IndexGenerator.h"
+#include <cstring>
+#include <spirv_reflect.h>
 
 namespace MobileGL::MG_Backend::DirectVulkan {
     UniquePtr<VulkanRenderer> pVulkanRenderer = nullptr;
 
-    void ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {}
+    namespace {
-    void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value) {}
+        struct BufferVariableResource {
-    void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value) {}
+            String name;
-    void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value) {}
+            GLuint blockIndex = 0;
-    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex) {}
+            GLint offset = 0;
+            GLint size = 0;
+        };
 
-    void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+        struct StorageBlockResource {
-                                     GLsizei drawcount, const GLint* basevertex) {}
+            String name;
+            GLuint binding = 0;
+            GLint dataSize = 0;
+            Vector<GLuint> activeVariables;
+        };
 
-    void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride) {}
+        struct ProgramResourceCache {
-    void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride) {}
+            Uint32 backendStateVersion = 0;
+            Vector<StorageBlockResource> storageBlocks;
+            Vector<BufferVariableResource> bufferVariables;
+            GLint computeWorkGroupSize[3] = {1, 1, 1};
+        };
+
+        UnorderedMap<GLuint, ProgramResourceCache> g_programResourceCaches;
+
+        String NormalizeDescriptorName(const SpvReflectDescriptorBinding& binding) {
+            const char* rawName = binding.name;
+            if (binding.type_description != nullptr && binding.type_description->type_name != nullptr) {
+                rawName = binding.type_description->type_name;
+            }
+            if (rawName == nullptr) {
+                return {};
+            }
+            String name = rawName;
+            const auto arraySuffix = name.find("[0]");
+            if (arraySuffix != String::npos) {
+                name = name.substr(0, arraySuffix);
+            }
+            return name;
+        }
+
+        void AddBufferVariablesRecursive(const SpvReflectBlockVariable& variable, const String& prefix,
+                                         GLuint blockIndex, Vector<BufferVariableResource>& variables,
+                                         Vector<GLuint>& activeVariables) {
+            for (Uint32 memberIndex = 0; memberIndex < variable.member_count; ++memberIndex) {
+                const auto& member = variable.members[memberIndex];
+                String name = prefix;
+                if (!name.empty()) {
+                    name += ".";
+                }
+                name += member.name ? member.name : "";
+
+                if (member.member_count > 0) {
+                    AddBufferVariablesRecursive(member, name, blockIndex, variables, activeVariables);
+                    continue;
+                }
+
+                BufferVariableResource resource{};
+                resource.name = name;
+                resource.blockIndex = blockIndex;
+                resource.offset = static_cast<GLint>(member.offset);
+                resource.size = static_cast<GLint>(member.size);
+                const GLuint variableIndex = static_cast<GLuint>(variables.size());
+                variables.push_back(resource);
+                activeVariables.push_back(variableIndex);
+            }
+        }
+
+        ProgramResourceCache& GetProgramResourceCache(const MG_State::GLState::ProgramObject& program) {
+            auto& cache = g_programResourceCaches[program.GetExternalIndex()];
+            const Uint32 backendStateVersion = program.GetBackendStateVersion();
+            if (cache.backendStateVersion == backendStateVersion &&
+                (!cache.storageBlocks.empty() || !cache.bufferVariables.empty())) {
+                return cache;
+            }
+
+            cache = {};
+            cache.backendStateVersion = backendStateVersion;
+
+            Vector<SpvReflectShaderModule> modules;
+            Vector<Bool> validModules;
+            const auto& spirvs = program.GetGeneratedSpirv();
+            for (const auto& spirv : spirvs) {
+                if (spirv.empty()) {
+                    continue;
+                }
+                SpvReflectShaderModule module{};
+                const SpvReflectResult result =
+                    spvReflectCreateShaderModule(spirv.size() * sizeof(Uint), spirv.data(), &module);
+                if (result != SPV_REFLECT_RESULT_SUCCESS) {
+                    continue;
+                }
+                modules.push_back(module);
+                validModules.push_back(true);
+            }
+
+            for (auto& module : modules) {
+                for (Uint32 entryIndex = 0; entryIndex < module.entry_point_count; ++entryIndex) {
+                    const auto& entryPoint = module.entry_points[entryIndex];
+                    if ((entryPoint.shader_stage & SPV_REFLECT_SHADER_STAGE_COMPUTE_BIT) == 0) {
+                        continue;
+                    }
+                    cache.computeWorkGroupSize[0] = static_cast<GLint>(std::max<Uint32>(entryPoint.local_size.x, 1));
+                    cache.computeWorkGroupSize[1] = static_cast<GLint>(std::max<Uint32>(entryPoint.local_size.y, 1));
+                    cache.computeWorkGroupSize[2] = static_cast<GLint>(std::max<Uint32>(entryPoint.local_size.z, 1));
+                }
+
+                uint32_t bindingCount = 0;
+                SpvReflectResult result = spvReflectEnumerateDescriptorBindings(&module, &bindingCount, nullptr);
+                if (result != SPV_REFLECT_RESULT_SUCCESS || bindingCount == 0) {
+                    continue;
+                }
+                Vector<SpvReflectDescriptorBinding*> bindings(bindingCount);
+                result = spvReflectEnumerateDescriptorBindings(&module, &bindingCount, bindings.data());
+                if (result != SPV_REFLECT_RESULT_SUCCESS) {
+                    continue;
+                }
+                std::sort(bindings.begin(), bindings.end(), [](const auto* lhs, const auto* rhs) {
+                    const String lhsName = lhs ? NormalizeDescriptorName(*lhs) : String();
+                    const String rhsName = rhs ? NormalizeDescriptorName(*rhs) : String();
+                    if (lhsName != rhsName) return lhsName < rhsName;
+                    return lhs->binding < rhs->binding;
+                });
+                for (const auto* binding : bindings) {
+                    if (binding == nullptr ||
+                        binding->descriptor_type != SPV_REFLECT_DESCRIPTOR_TYPE_STORAGE_BUFFER) {
+                        continue;
+                    }
+                    const String blockName = NormalizeDescriptorName(*binding);
+                    if (blockName.empty()) {
+                        continue;
+                    }
+                    const auto existing = std::find_if(
+                        cache.storageBlocks.begin(), cache.storageBlocks.end(),
+                        [&](const StorageBlockResource& block) { return block.name == blockName; });
+                    if (existing != cache.storageBlocks.end()) {
+                        continue;
+                    }
+
+                    StorageBlockResource block{};
+                    block.name = blockName;
+                    block.binding = binding->binding;
+                    block.dataSize = static_cast<GLint>(binding->block.size);
+                    const GLuint blockIndex = static_cast<GLuint>(cache.storageBlocks.size());
+                    AddBufferVariablesRecursive(binding->block, blockName, blockIndex, cache.bufferVariables,
+                                                block.activeVariables);
+                    cache.storageBlocks.push_back(block);
+                }
+            }
+
+            for (SizeT i = 0; i < modules.size(); ++i) {
+                if (validModules[i]) {
+                    spvReflectDestroyShaderModule(&modules[i]);
+                }
+            }
+            return cache;
+        }
+
+        MG_State::GLState::ProgramObject* TryGetDirectVulkanProgram(GLuint program) {
+            if (!MG_State::pGLContext || !MG_State::pGLContext->ValidateProgramName(program)) {
+                return nullptr;
+            }
+            auto& programObject = MG_State::pGLContext->GetProgramObject(program);
+            return programObject.get();
+        }
+
+        void CopyResourceName(const String& source, GLsizei bufSize, GLsizei* length, GLchar* name) {
+            const GLsizei writtenLength = static_cast<GLsizei>(source.size());
+            if (length) {
+                *length = writtenLength;
+            }
+            if (name && bufSize > 0) {
+                const GLsizei copyLength = std::min<GLsizei>(bufSize - 1, writtenLength);
+                std::memcpy(name, source.data(), static_cast<SizeT>(copyLength));
+                name[copyLength] = '\0';
+            }
+        }
+    } // namespace
+
+    GLuint GetShaderStorageBlockIndex(const MG_State::GLState::ProgramObject& program, const String& name) {
+        auto& cache = GetProgramResourceCache(program);
+        const auto it = std::find_if(cache.storageBlocks.begin(), cache.storageBlocks.end(),
+            [&](const StorageBlockResource& block) { return block.name == name; });
+        return it == cache.storageBlocks.end()
+            ? GL_INVALID_INDEX
+            : static_cast<GLuint>(std::distance(cache.storageBlocks.begin(), it));
+    }
+
+    GLuint GetShaderStorageBlockBinding(const MG_State::GLState::ProgramObject& program, GLuint blockIndex) {
+        auto& cache = GetProgramResourceCache(program);
+        if (blockIndex >= cache.storageBlocks.size()) {
+            return 0;
+        }
+        return cache.storageBlocks[blockIndex].binding;
+    }
+
+    void ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearBufferfi called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearBufferfi called with null GL context");
+        pVulkanRenderer->ClearBufferfi(buffer, drawbuffer, depth, stencil);
+    }
+
+    void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearBufferfv called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearBufferfv called with null GL context");
+        pVulkanRenderer->ClearBufferfv(buffer, drawbuffer, value);
+    }
+
+    void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearBufferuiv called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearBufferuiv called with null GL context");
+        pVulkanRenderer->ClearBufferuiv(buffer, drawbuffer, value);
+    }
+
+    void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearBufferiv called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearBufferiv called with null GL context");
+        pVulkanRenderer->ClearBufferiv(buffer, drawbuffer, value);
+    }
+
+    void ClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer, GLenum buffer,
+                                 GLint drawbuffer, const GLfloat* value) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearNamedFramebufferfv called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearNamedFramebufferfv called with null GL context");
+        pVulkanRenderer->ClearNamedFramebufferfv(framebuffer, buffer, drawbuffer, value);
+    }
+
+    void ClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer, GLenum buffer,
+                                 GLint drawbuffer, GLfloat depth, GLint stencil) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ClearNamedFramebufferfi called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ClearNamedFramebufferfi called with null GL context");
+        pVulkanRenderer->ClearNamedFramebufferfi(framebuffer, buffer, drawbuffer, depth, stencil);
+    }
+
+    void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MultiDrawElementsIndirect called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::MultiDrawElementsIndirect called with null GL context");
+        pVulkanRenderer->MultiDrawElementsIndirectCount(mode, type, indirect, 0, drawcount, stride);
+    }
+    void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride) {
+        MGLOG_W("DirectVulkan::MultiDrawArraysIndirect is not implemented yet (drawcount=%d)", drawcount);
+    }
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MultiDrawElementsIndirectCount called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::MultiDrawElementsIndirectCount called with null GL context");
+        pVulkanRenderer->MultiDrawElementsIndirectCount(mode, type, indirect, drawcount, maxdrawcount, stride);
+    }
+    void MultiDrawArraysIndirectCount(GLenum mode, const void* indirect, GLintptr drawcount,
+                                      GLsizei maxdrawcount, GLsizei stride) {
+        MGLOG_W("DirectVulkan::MultiDrawArraysIndirectCount is not implemented yet (maxdrawcount=%d)", maxdrawcount);
+    }
     void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                      const void* indices, GLint basevertex) {}
     void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices) {}
@@ -40,38 +284,358 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount) {}
     void DrawArraysIndirect(GLenum mode, const void* indirect) {}
     void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
-                        GLsizei height, GLint border) {}
+                        GLsizei height, GLint border) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::CopyTexImage2D called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::CopyTexImage2D called with null GL context");
+        pVulkanRenderer->CopyTexSubImage2D(target, level, 0, 0, x, y, width, height);
+    }
     void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width,
-                           GLsizei height) {}
+                           GLsizei height) {
-    void GenerateMipmap(GLenum target) {}
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::CopyTexSubImage2D called with null VulkanRenderer");
-    void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels) {}
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::CopyTexSubImage2D called with null GL context");
-    void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels) {}
+        pVulkanRenderer->CopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
+    }
+    void GenerateMipmap(GLenum target) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::GenerateMipmap called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::GenerateMipmap called with null GL context");
+        pVulkanRenderer->GenerateMipmap(target);
+    }
 
-    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ) {
-                           GLsizei drawcount) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DispatchCompute called with null VulkanRenderer");
-        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MultiDrawElements called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DispatchCompute called with null GL context");
-        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::MultiDrawElements called with null GL context");
+        pVulkanRenderer->DispatchCompute(numGroupsX, numGroupsY, numGroupsZ);
+    }
 
-        Vector<DrawElementCmd> cmds;
+    void DispatchComputeIndirect(GLintptr indirect) {
-        cmds.reserve(static_cast<SizeT>(drawcount));
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DispatchComputeIndirect called with null VulkanRenderer");
-        for (GLsizei i = 0; i < drawcount; ++i) {
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DispatchComputeIndirect called with null GL context");
-            if (count[i] == 0) {
+        pVulkanRenderer->DispatchComputeIndirect(indirect);
-                continue;
+    }
+
+    void MemoryBarrier(GLbitfield barriers) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MemoryBarrier called with null VulkanRenderer");
+        pVulkanRenderer->MemoryBarrier(barriers);
+    }
+
+    void MemoryBarrierByRegion(GLbitfield barriers) {
+        MemoryBarrier(barriers);
+    }
+
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format) {
+        (void)unit;
+        (void)texture;
+        (void)level;
+        (void)layered;
+        (void)layer;
+        (void)access;
+        (void)format;
+    }
+
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data) {
+        if (!data) return;
+        switch (target) {
+        case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
+            if (!pVulkanRenderer || index >= 3) {
+                *data = 0;
+                return;
             }
-
+            *data = static_cast<GLint>(
-            DrawElementCmd payload{};
+                pVulkanRenderer->GetPhysicalDevice().properties.limits.maxComputeWorkGroupCount[index]);
-            payload.mode = mode;
+            return;
-            payload.first = 0;
+        case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
-            payload.count = count[i];
+            if (!pVulkanRenderer || index >= 3) {
-            payload.indexType = type;
+                *data = 0;
-            payload.indexByteOffset = reinterpret_cast<SizeT>(indices[i]);
+                return;
-            cmds.push_back(payload);
+            }
-        }
+            *data = static_cast<GLint>(
-
+                pVulkanRenderer->GetPhysicalDevice().properties.limits.maxComputeWorkGroupSize[index]);
-        if (cmds.empty()) {
+            return;
+        case GL_SHADER_STORAGE_BUFFER_BINDING: {
+            auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, index);
+            auto& obj = point.GetBoundObject();
+            *data = obj ? static_cast<GLint>(obj->GetExternalIndex()) : 0;
             return;
         }
-        pVulkanRenderer->MultiDrawElements(cmds);
+        case GL_SHADER_STORAGE_BUFFER_START: {
+            auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, index);
+            *data = static_cast<GLint>(point.GetRange().start);
+            return;
+        }
+        case GL_SHADER_STORAGE_BUFFER_SIZE: {
+            auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, index);
+            auto& obj = point.GetBoundObject();
+            if (!obj) {
+                *data = 0;
+                return;
+            }
+            const auto& range = point.GetRange();
+            const auto start = std::min(range.start, obj->GetSize());
+            const auto end = std::min(range.end, obj->GetSize());
+            *data = static_cast<GLint>(end - start);
+            return;
+        }
+        case GL_IMAGE_BINDING_NAME:
+        case GL_IMAGE_BINDING_LEVEL:
+        case GL_IMAGE_BINDING_LAYERED:
+        case GL_IMAGE_BINDING_LAYER:
+        case GL_IMAGE_BINDING_ACCESS:
+        case GL_IMAGE_BINDING_FORMAT: {
+            if (index >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) {
+                *data = 0;
+                return;
+            }
+            auto& imageBinding = MG_State::pGLContext->GetImageTextureBinding(static_cast<Int>(index));
+            if (target == GL_IMAGE_BINDING_NAME) {
+                *data = imageBinding.Texture ? static_cast<GLint>(imageBinding.Texture->GetExternalIndex()) : 0;
+            } else if (target == GL_IMAGE_BINDING_LEVEL) {
+                *data = imageBinding.Level;
+            } else if (target == GL_IMAGE_BINDING_LAYERED) {
+                *data = imageBinding.Layered;
+            } else if (target == GL_IMAGE_BINDING_LAYER) {
+                *data = imageBinding.Layer;
+            } else if (target == GL_IMAGE_BINDING_ACCESS) {
+                *data = static_cast<GLint>(imageBinding.Access);
+            } else {
+                *data = static_cast<GLint>(imageBinding.Format);
+            }
+            return;
+        }
+        default:
+            *data = 0;
+            return;
+        }
+    }
+
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data) {
+        if (!data) return;
+        switch (target) {
+        case GL_SHADER_STORAGE_BUFFER_START: {
+            auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, index);
+            *data = static_cast<GLint64>(point.GetRange().start);
+            return;
+        }
+        case GL_SHADER_STORAGE_BUFFER_SIZE: {
+            auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, index);
+            auto& obj = point.GetBoundObject();
+            if (!obj) {
+                *data = 0;
+                return;
+            }
+            const auto& range = point.GetRange();
+            const auto start = std::min(range.start, obj->GetSize());
+            const auto end = std::min(range.end, obj->GetSize());
+            *data = static_cast<GLint64>(end - start);
+            return;
+        }
+        default:
+            *data = 0;
+            return;
+        }
+    }
+
+    void GetProgramiv(GLuint program, GLenum pname, GLint* params) {
+        if (!params) return;
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject) {
+            params[0] = 0;
+            return;
+        }
+        switch (pname) {
+        case GL_COMPUTE_WORK_GROUP_SIZE: {
+            auto& cache = GetProgramResourceCache(*programObject);
+            params[0] = cache.computeWorkGroupSize[0];
+            params[1] = cache.computeWorkGroupSize[1];
+            params[2] = cache.computeWorkGroupSize[2];
+            return;
+        }
+        default:
+            params[0] = 0;
+            return;
+        }
+    }
+
+    void GetProgramInterfaceiv(GLuint program, GLenum programInterface, GLenum pname, GLint* params) {
+        if (!params) return;
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject) return;
+        auto& cache = GetProgramResourceCache(*programObject);
+        if (programInterface == GL_SHADER_STORAGE_BLOCK) {
+            if (pname == GL_ACTIVE_RESOURCES) {
+                *params = static_cast<GLint>(cache.storageBlocks.size());
+            } else if (pname == GL_MAX_NAME_LENGTH) {
+                SizeT maxLength = 0;
+                for (const auto& block : cache.storageBlocks) maxLength = std::max(maxLength, block.name.size() + 1);
+                *params = static_cast<GLint>(maxLength);
+            } else {
+                *params = 0;
+            }
+            return;
+        }
+        if (programInterface == GL_BUFFER_VARIABLE) {
+            if (pname == GL_ACTIVE_RESOURCES) {
+                *params = static_cast<GLint>(cache.bufferVariables.size());
+            } else if (pname == GL_MAX_NAME_LENGTH) {
+                SizeT maxLength = 0;
+                for (const auto& var : cache.bufferVariables) maxLength = std::max(maxLength, var.name.size() + 1);
+                *params = static_cast<GLint>(maxLength);
+            } else {
+                *params = 0;
+            }
+            return;
+        }
+        *params = 0;
+    }
+
+    GLuint GetProgramResourceIndex(GLuint program, GLenum programInterface, const GLchar* name) {
+        if (!name) return GL_INVALID_INDEX;
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject) return GL_INVALID_INDEX;
+        auto& cache = GetProgramResourceCache(*programObject);
+        if (programInterface == GL_SHADER_STORAGE_BLOCK) {
+            return GetShaderStorageBlockIndex(*programObject, name);
+        }
+        if (programInterface == GL_BUFFER_VARIABLE) {
+            const String resourceName = name;
+            const auto it = std::find_if(cache.bufferVariables.begin(), cache.bufferVariables.end(),
+                [&](const BufferVariableResource& var) { return var.name == resourceName; });
+            return it == cache.bufferVariables.end()
+                ? GL_INVALID_INDEX
+                : static_cast<GLuint>(std::distance(cache.bufferVariables.begin(), it));
+        }
+        return GL_INVALID_INDEX;
+    }
+
+    void GetProgramResourceName(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize,
+                                GLsizei* length, GLchar* name) {
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject) return;
+        auto& cache = GetProgramResourceCache(*programObject);
+        if (programInterface == GL_SHADER_STORAGE_BLOCK && index < cache.storageBlocks.size()) {
+            CopyResourceName(cache.storageBlocks[index].name, bufSize, length, name);
+            return;
+        }
+        if (programInterface == GL_BUFFER_VARIABLE && index < cache.bufferVariables.size()) {
+            CopyResourceName(cache.bufferVariables[index].name, bufSize, length, name);
+            return;
+        }
+        if (length) *length = 0;
+        if (name && bufSize > 0) name[0] = '\0';
+    }
+
+    void GetProgramResourceiv(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                              const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params) {
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject || !props || !params || bufSize <= 0) return;
+        auto& cache = GetProgramResourceCache(*programObject);
+        GLsizei written = 0;
+        auto writeValue = [&](GLint value) {
+            if (written < bufSize) {
+                params[written++] = value;
+            }
+        };
+
+        for (GLsizei propIndex = 0; propIndex < propCount; ++propIndex) {
+            const GLenum prop = props[propIndex];
+            if (programInterface == GL_SHADER_STORAGE_BLOCK && index < cache.storageBlocks.size()) {
+                const auto& block = cache.storageBlocks[index];
+                switch (prop) {
+                case GL_NAME_LENGTH:
+                    writeValue(static_cast<GLint>(block.name.size() + 1));
+                    break;
+                case GL_BUFFER_BINDING:
+                    writeValue(static_cast<GLint>(block.binding));
+                    break;
+                case GL_BUFFER_DATA_SIZE:
+                    writeValue(block.dataSize);
+                    break;
+                case GL_NUM_ACTIVE_VARIABLES:
+                    writeValue(static_cast<GLint>(block.activeVariables.size()));
+                    break;
+                case GL_ACTIVE_VARIABLES:
+                    for (const auto variable : block.activeVariables) writeValue(static_cast<GLint>(variable));
+                    break;
+                default:
+                    writeValue(0);
+                    break;
+                }
+            } else if (programInterface == GL_BUFFER_VARIABLE && index < cache.bufferVariables.size()) {
+                const auto& var = cache.bufferVariables[index];
+                switch (prop) {
+                case GL_NAME_LENGTH:
+                    writeValue(static_cast<GLint>(var.name.size() + 1));
+                    break;
+                case GL_TYPE:
+                    writeValue(GL_FLOAT);
+                    break;
+                case GL_ARRAY_SIZE:
+                    writeValue(1);
+                    break;
+                case GL_OFFSET:
+                    writeValue(var.offset);
+                    break;
+                case GL_BLOCK_INDEX:
+                    writeValue(static_cast<GLint>(var.blockIndex));
+                    break;
+                case GL_ARRAY_STRIDE:
+                case GL_MATRIX_STRIDE:
+                case GL_TOP_LEVEL_ARRAY_SIZE:
+                case GL_TOP_LEVEL_ARRAY_STRIDE:
+                case GL_IS_ROW_MAJOR:
+                    writeValue(0);
+                    break;
+                default:
+                    writeValue(0);
+                    break;
+                }
+            } else {
+                writeValue(0);
+            }
+        }
+        if (length) *length = written;
+    }
+
+    GLint GetProgramResourceLocation(GLuint program, GLenum programInterface, const GLchar* name) {
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject || !name) return -1;
+        if (programInterface == GL_UNIFORM) {
+            return programObject->GetUniformLocation(name);
+        }
+        return -1;
+    }
+
+    GLint GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar* name) {
+        (void)program;
+        (void)programInterface;
+        (void)name;
+        return -1;
+    }
+
+    void ShaderStorageBlockBinding(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding) {
+        auto* programObject = TryGetDirectVulkanProgram(program);
+        if (!programObject) return;
+        auto& cache = GetProgramResourceCache(*programObject);
+        if (storageBlockIndex >= cache.storageBlocks.size()) {
+            return;
+        }
+        cache.storageBlocks[storageBlockIndex].binding = storageBlockBinding;
+    }
+    void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::ReadPixels called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::ReadPixels called with null GL context");
+        pVulkanRenderer->ReadPixels(x, y, width, height, format, type, pixels);
+    }
+    void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::GetTexImage called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::GetTexImage called with null GL context");
+        pVulkanRenderer->GetTexImage(target, level, format, type, pixels);
+    }
+    void GetTextureImage(const SharedPtr<MG_State::GLState::ITextureObject>& texture, TextureUploadTarget uploadTarget,
+                         GLint level, GLenum format, GLenum type, GLsizei bufSize, GLvoid* pixels) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::GetTextureImage called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::GetTextureImage called with null GL context");
+        pVulkanRenderer->GetTextureImage(texture, uploadTarget, level, format, type, bufSize, pixels);
     }
 
     void Clear(GLbitfield mask) {
@@ -80,32 +644,114 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         pVulkanRenderer->Clear(mask);
     }
 
-    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices) {
-        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DrawElements called with null VulkanRenderer");
-        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DrawElements called with null GL context");
-
-        DrawElementCmd payload{};
-        payload.mode = mode;
-        payload.first = 0;
-        payload.count = count;
-        payload.indexType = type;
-        payload.indexByteOffset = reinterpret_cast<SizeT>(indices);
-
-        pVulkanRenderer->DrawElements(payload);
-    }
-
     void DrawArrays(GLenum mode, GLint first, GLsizei count) {
         MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DrawArrays called with null VulkanRenderer");
         MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DrawArrays called with null GL context");
 
-        DrawArrayCmd payload{};
+        DrawCmd payload{};
         payload.mode = mode;
-        payload.first = first;
+        payload.params.firstVertex = first;
-        payload.count = count;
+        payload.params.vertexCount = count;
 
         pVulkanRenderer->DrawArrays(payload);
     }
 
+    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DrawElements called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DrawElements called with null GL context");
+
+        DrawIndexedCmd payload{};
+        payload.mode = mode;
+        payload.indexBufferView.indexType = type;
+        payload.indexBufferView.indexByteOffset = reinterpret_cast<SizeT>(indices);
+        payload.indexBufferView.indexByteSize = count * MG_Util::GetGLTypeSize(type);
+        payload.params.indexCount = count;
+        payload.params.instanceCount = 1;
+
+        pVulkanRenderer->DrawElements(payload);
+    }
+
+    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MultiDrawElements called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::MultiDrawElements called with null GL context");
+
+        // Vector<DrawElementCmd> cmds;
+        // cmds.reserve(static_cast<SizeT>(drawcount));
+        // for (GLsizei i = 0; i < drawcount; ++i) {
+        //     if (count[i] == 0) {
+        //         continue;
+        //     }
+        //
+        //     DrawElementCmd payload{};
+        //     payload.mode = mode;
+        //     payload.firstVertex = 0;
+        //     payload.indexCount = count[i];
+        //     payload.indexType = type;
+        //     payload.indexByteOffset = reinterpret_cast<SizeT>(indices[i]);
+        //     cmds.push_back(payload);
+        // }
+        //
+        // if (cmds.empty()) {
+        //     return;
+        // }
+        // pVulkanRenderer->MultiDrawElements(cmds);
+    }
+
+    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::DrawElementsBaseVertex called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::DrawElementsBaseVertex called with null GL context");
+        DrawIndexedCmd payload{};
+        payload.mode = mode;
+        payload.indexBufferView.indexType = type;
+        payload.indexBufferView.indexByteOffset = reinterpret_cast<SizeT>(indices);
+        payload.indexBufferView.indexByteSize = count * MG_Util::GetGLTypeSize(type);
+        payload.params.indexCount = count;
+        payload.params.instanceCount = 1;
+        payload.params.firstIndex = 0;
+        payload.params.vertexOffset = basevertex;
+        payload.params.firstInstance = 0;
+        pVulkanRenderer->DrawElements(payload);
+    }
+
+    void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                                     GLsizei drawcount, const GLint* basevertex) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::MultiDrawElements called with null VulkanRenderer");
+        MOBILEGL_ASSERT(MG_State::pGLContext, "DirectVulkan::MultiDrawElements called with null GL context");
+        MultiDrawIndexedCmd payload{};
+        payload.mode = mode;
+        payload.indexBufferView.indexType = type;
+
+        // TODO: allocate draw cmd buf elsewhere
+        static Vector<DrawIndexedCmdParam> params;
+        params.clear();
+        params.resize(drawcount);
+
+        for (GLsizei i = 0; i < drawcount; ++i) {
+            if (count[i] == 0) {
+                continue;
+            }
+
+            // TODO: this index view needs a redesign, now there's a lotta redundant uploads
+
+            payload.indexBufferView.indexByteOffset = 0;
+            payload.indexBufferView.indexByteSize =
+                    std::max(reinterpret_cast<SizeT>(indices[i]) + count[i] * MG_Util::GetGLTypeSize(type),
+                             payload.indexBufferView.indexByteSize);
+
+            auto& param = params[i];
+
+            param.indexCount = count[i];
+            param.instanceCount = 1;
+            param.firstIndex = reinterpret_cast<SizeT>(indices[i]) / MG_Util::GetGLTypeSize(type);
+            param.vertexOffset = basevertex[i];
+            param.firstInstance = 0;
+        }
+        payload.drawCount = drawcount;
+        payload.pParams = params.data();
+        pVulkanRenderer->MultiDrawElements(payload);
+    }
+
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
                          GLint dstY1, GLbitfield mask, GLenum filter) {
         MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::BlitFramebuffer called with null VulkanRenderer");
@@ -113,6 +759,15 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         pVulkanRenderer->BlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
     }
 
+    void BlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                              const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                              GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,
+                              GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
+        MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::BlitNamedFramebuffer called with null VulkanRenderer");
+        pVulkanRenderer->BlitNamedFramebuffer(readFramebuffer, drawFramebuffer, srcX0, srcY0, srcX1, srcY1, dstX0,
+                                              dstY0, dstX1, dstY1, mask, filter);
+    }
+
     void Present() {
         MOBILEGL_ASSERT(pVulkanRenderer, "DirectVulkan::Present called with null VulkanRenderer");
         pVulkanRenderer->Present();

MobileGL/MG_Backend/DirectVulkan/DirectVulkan.h

@@ -17,6 +17,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value);
     void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value);
     void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value);
+    void ClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer, GLenum buffer,
+                                 GLint drawbuffer, const GLfloat* value);
+    void ClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer, GLenum buffer,
+                                 GLint drawbuffer, GLfloat depth, GLint stencil);
     void Clear(GLbitfield mask);
     void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices);
     void DrawArrays(GLenum mode, GLint first, GLsizei count);
@@ -27,6 +31,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                                      GLsizei drawcount, const GLint* basevertex);
     void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride);
     void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride);
+    void MultiDrawArraysIndirectCount(GLenum mode, const void* indirect, GLintptr drawcount,
+                                      GLsizei maxdrawcount, GLsizei stride);
     void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                      const void* indices, GLint basevertex);
     void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);
@@ -44,12 +52,37 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     void DrawArraysIndirect(GLenum mode, const void* indirect);
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
                          GLint dstY1, GLbitfield mask, GLenum filter);
+    void BlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                              const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                              GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                              GLbitfield mask, GLenum filter);
     void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
                         GLsizei height, GLint border);
     void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width,
                            GLsizei height);
     void GenerateMipmap(GLenum target);
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+    void DispatchComputeIndirect(GLintptr indirect);
+    void MemoryBarrier(GLbitfield barriers);
+    void MemoryBarrierByRegion(GLbitfield barriers);
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format);
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data);
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data);
+    void GetProgramiv(GLuint program, GLenum pname, GLint* params);
+    void GetProgramInterfaceiv(GLuint program, GLenum programInterface, GLenum pname, GLint* params);
+    GLuint GetProgramResourceIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void GetProgramResourceName(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize,
+                                GLsizei* length, GLchar* name);
+    void GetProgramResourceiv(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                              const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params);
+    GLint GetProgramResourceLocation(GLuint program, GLenum programInterface, const GLchar* name);
+    GLint GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void ShaderStorageBlockBinding(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
     void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels);
     void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+    void GetTextureImage(const SharedPtr<MG_State::GLState::ITextureObject>& texture, TextureUploadTarget uploadTarget,
+                         GLint level, GLenum format, GLenum type, GLsizei bufSize, GLvoid* pixels);
     void Present();
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/DirectVulkanResourceState.h

@@ -0,0 +1,20 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/DirectVulkanResourceState.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+#include <Includes.h>
+
+namespace MobileGL::MG_State::GLState {
+    class ProgramObject;
+}
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    GLuint GetShaderStorageBlockIndex(const MG_State::GLState::ProgramObject& program, const String& name);
+    GLuint GetShaderStorageBlockBinding(const MG_State::GLState::ProgramObject& program, GLuint blockIndex);
+}

MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.cpp

@@ -0,0 +1,138 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "BufferArena.h"
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    Bool BufferArena::Initialize(const BufferArenaDesc& desc) {
+        Shutdown();
+
+        MOBILEGL_ASSERT(desc.allocator != nullptr, "BufferArena::Initialize requires valid allocator");
+        MOBILEGL_ASSERT(desc.frameCount > 0, "BufferArena::Initialize requires non-zero frame count");
+        MOBILEGL_ASSERT(desc.usage != 0, "BufferArena::Initialize requires non-zero buffer usage");
+
+        m_desc = desc;
+        m_frames.clear();
+        m_frames.resize(desc.frameCount);
+        m_deferredReleases.resize(desc.frameCount);
+        return true;
+    }
+
+    void BufferArena::Shutdown() {
+        for (auto& frame : m_frames) {
+            frame.buffer.Destroy();
+            frame.writeCursor = 0;
+        }
+        m_frames.clear();
+        m_deferredReleases.clear();
+        m_desc = {};
+    }
+
+    void BufferArena::BeginFrame(Uint32 frameIndex) {
+        CollectDeferredReleases(frameIndex);
+        ResetFrame(frameIndex);
+    }
+
+    void BufferArena::ResetFrame(Uint32 frameIndex) {
+        AssertValidFrameIndex(frameIndex);
+        m_frames[frameIndex].writeCursor = 0;
+    }
+
+    void BufferArena::CollectDeferredReleases(Uint32 frameIndex) {
+        AssertValidFrameIndex(frameIndex);
+        m_deferredReleases[frameIndex].clear();
+    }
+
+    Bool BufferArena::Allocate(Uint32 frameIndex, VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice) {
+        AssertValidFrameIndex(frameIndex);
+        MOBILEGL_ASSERT(size > 0, "BufferArena::Allocate requires non-zero size");
+
+        auto& frame = m_frames[frameIndex];
+        const VkDeviceSize resolvedAlignment = alignment > 0 ? alignment : 1;
+        const VkDeviceSize offset = (frame.writeCursor + resolvedAlignment - 1) & ~(resolvedAlignment - 1);
+        const VkDeviceSize endOffset = offset + size;
+
+        if (!EnsureCapacity(frameIndex, endOffset)) {
+            return false;
+        }
+
+        frame.writeCursor = endOffset;
+        outSlice = frame.buffer.GetSlice(offset, size);
+        return outSlice.IsValid();
+    }
+
+    Bool BufferArena::Upload(Uint32 frameIndex, const void* data, VkDeviceSize size, VkDeviceSize alignment,
+                             BufferSlice& outSlice) {
+        MOBILEGL_ASSERT(data != nullptr || size == 0, "BufferArena::Upload data pointer is null");
+        if (!Allocate(frameIndex, size, alignment, outSlice)) {
+            return false;
+        }
+
+        if (outSlice.mapped != nullptr) {
+            Memcpy(outSlice.mapped, data, static_cast<SizeT>(size));
+            return true;
+        }
+
+        return m_frames[frameIndex].buffer.Upload(data, size, outSlice.offset);
+    }
+
+    VkDeviceSize BufferArena::GetWriteCursor(Uint32 frameIndex) const {
+        AssertValidFrameIndex(frameIndex);
+        return m_frames[frameIndex].writeCursor;
+    }
+
+    Uint32 BufferArena::GetFrameCount() const {
+        return static_cast<Uint32>(m_frames.size());
+    }
+
+    Bool BufferArena::EnsureCapacity(Uint32 frameIndex, VkDeviceSize requiredEndOffset) {
+        AssertValidFrameIndex(frameIndex);
+        auto& frame = m_frames[frameIndex];
+        auto& buffer = frame.buffer;
+
+        if (buffer.IsValid() && buffer.GetSize() >= requiredEndOffset) {
+            return true;
+        }
+
+        VkDeviceSize newCapacity = buffer.IsValid() ? buffer.GetSize() : 0;
+        if (newCapacity < m_desc.minBufferSize) {
+            newCapacity = m_desc.minBufferSize;
+        }
+        if (newCapacity == 0) {
+            newCapacity = requiredEndOffset;
+        }
+        while (newCapacity < requiredEndOffset) {
+            newCapacity *= 2;
+        }
+
+        if (buffer.IsValid()) {
+            m_deferredReleases[frameIndex].push_back(std::move(buffer));
+        }
+
+        VkBufferObjectDesc bufferDesc{};
+        bufferDesc.allocator = m_desc.allocator;
+        bufferDesc.size = newCapacity;
+        bufferDesc.usage = m_desc.usage;
+        bufferDesc.memoryUsage = m_desc.memoryUsage;
+        bufferDesc.allocationFlags = m_desc.allocationFlags;
+        if (!buffer.Create(bufferDesc)) {
+            return false;
+        }
+        if (m_desc.persistentlyMapped && buffer.Map() == nullptr) {
+            buffer.Destroy();
+            return false;
+        }
+
+        frame.writeCursor = 0;
+        return true;
+    }
+
+    void BufferArena::AssertValidFrameIndex(Uint32 frameIndex) const {
+        MOBILEGL_ASSERT(frameIndex < m_frames.size(), "BufferArena frame index out of range");
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.h

@@ -0,0 +1,56 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+#include "BufferSlice.h"
+#include "VkBufferObject.h"
+#include "../VkIncludes.h"
+#include <Includes.h>
+#include <vk_mem_alloc.h>
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    struct BufferArenaDesc {
+        VmaAllocator allocator = nullptr;
+        Uint32 frameCount = 0;
+        VkBufferUsageFlags usage = 0;
+        VmaMemoryUsage memoryUsage = VMA_MEMORY_USAGE_AUTO;
+        VmaAllocationCreateFlags allocationFlags = 0;
+        VkDeviceSize minBufferSize = 0;
+        Bool persistentlyMapped = false;
+    };
+
+    class BufferArena {
+    public:
+        Bool Initialize(const BufferArenaDesc& desc);
+        void Shutdown();
+
+        void BeginFrame(Uint32 frameIndex);
+        void ResetFrame(Uint32 frameIndex);
+        void CollectDeferredReleases(Uint32 frameIndex);
+
+        Bool Allocate(Uint32 frameIndex, VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice);
+        Bool Upload(Uint32 frameIndex, const void* data, VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice);
+
+        VkDeviceSize GetWriteCursor(Uint32 frameIndex) const;
+        Uint32 GetFrameCount() const;
+
+    private:
+        struct FrameResources {
+            VkBufferObject buffer;
+            VkDeviceSize writeCursor = 0;
+        };
+
+        Bool EnsureCapacity(Uint32 frameIndex, VkDeviceSize requiredEndOffset);
+        void AssertValidFrameIndex(Uint32 frameIndex) const;
+
+        BufferArenaDesc m_desc{};
+        Vector<FrameResources> m_frames;
+        Vector<Vector<VkBufferObject>> m_deferredReleases;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/BufferSlice.h

@@ -0,0 +1,23 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/BufferSlice.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+#include "../VkIncludes.h"
+#include <Includes.h>
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    struct BufferSlice {
+        VkBuffer buffer = VK_NULL_HANDLE;
+        VkDeviceSize offset = 0;
+        VkDeviceSize size = 0;
+        void* mapped = nullptr;
+
+        Bool IsValid() const { return buffer != VK_NULL_HANDLE; }
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/FrameContext.cpp

@@ -178,9 +178,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         packet.signalSemaphore = m_swapchainImageRenderFinishedSemaphores[swapchainImageIndex];
         packet.commandBuffer = frame.commandBuffer;
 
-        packet.submitInfo.waitSemaphoreCount = 1;
+        packet.submitInfo.waitSemaphoreCount = frame.imageAvailableSemaphoreConsumed ? 0U : 1U;
-        packet.submitInfo.pWaitSemaphores = &packet.waitSemaphore;
+        packet.submitInfo.pWaitSemaphores = frame.imageAvailableSemaphoreConsumed ? nullptr : &packet.waitSemaphore;
-        packet.submitInfo.pWaitDstStageMask = &packet.waitDstStageMask;
+        packet.submitInfo.pWaitDstStageMask = frame.imageAvailableSemaphoreConsumed ? nullptr : &packet.waitDstStageMask;
         packet.submitInfo.commandBufferCount = shouldSubmitCommandBuffer ? 1U : 0U;
         packet.submitInfo.pCommandBuffers = shouldSubmitCommandBuffer ? &packet.commandBuffer : nullptr;
         packet.submitInfo.signalSemaphoreCount = 1;
@@ -217,6 +217,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             return result;
         }
 
+        frame.imageAvailableSemaphoreConsumed = false;
         return vkAcquireNextImageKHR(device, swapchain, timeout, frame.imageAvailableSemaphore, acquireFence,
                                      &outImageIndex);
     }
@@ -260,6 +261,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
 
         frame.hasCommandBufferRecorded = false;
         frame.isCommandRecording = false;
+        frame.imageAvailableSemaphoreConsumed = false;
         return VK_SUCCESS;
     }
 
@@ -277,5 +279,6 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         frame.imageAvailableSemaphore = VK_NULL_HANDLE;
         frame.isCommandRecording = false;
         frame.hasCommandBufferRecorded = false;
+        frame.imageAvailableSemaphoreConsumed = false;
     }
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/FrameContext.h

@@ -35,6 +35,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             VkFence imageInFlightFence = VK_NULL_HANDLE;
             Bool isCommandRecording = false;
             Bool hasCommandBufferRecorded = false;
+            Bool imageAvailableSemaphoreConsumed = false;
         };
 
         VkResult Initialize(VkDevice device, VkCommandPool commandPool, Uint32 frameCount);

MobileGL/MG_Backend/DirectVulkan/Renderer/PipelineFactory.cpp

@@ -9,8 +9,21 @@
 #include "PipelineFactory.h"
 
 namespace MobileGL::MG_Backend::DirectVulkan {
+    PipelineFactory::PipelineFactory(VkDevice device, const VulkanRendererConfig& config):
+        m_device(device), m_config(config) {
+        MOBILEGL_ASSERT(m_device != VK_NULL_HANDLE, "PipelineFactory: device is null");
+
+        VkPipelineCacheCreateInfo pipelineCacheInfo{VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO};
+        VK_VERIFY(vkCreatePipelineCache(m_device, &pipelineCacheInfo, nullptr, &m_pipelineCache),
+                  "vkCreatePipelineCache");
+    }
+
     PipelineFactory::~PipelineFactory() {
         DestroyAll();
+        if (m_pipelineCache != VK_NULL_HANDLE) {
+            vkDestroyPipelineCache(m_device, m_pipelineCache, nullptr);
+            m_pipelineCache = VK_NULL_HANDLE;
+        }
     }
 
     PipelineFactory::HashType PipelineFactory::ComputeHash(const PipelineCreatePayload& payload) const {
@@ -19,6 +32,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.vertexInputHash, sizeof(payload.vertexInputHash)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.pipelineLayout, sizeof(payload.pipelineLayout)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.renderPass, sizeof(payload.renderPass)));
+        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.colorAttachmentCount, sizeof(payload.colorAttachmentCount)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.subpass, sizeof(payload.subpass)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.topology, sizeof(payload.topology)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.cullMode, sizeof(payload.cullMode)));
@@ -26,12 +40,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.depthTestEnable, sizeof(payload.depthTestEnable)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.depthWriteEnable, sizeof(payload.depthWriteEnable)));
         XXHASH_VERIFY(XXH64_update(m_hashState, &payload.depthCompareOp, sizeof(payload.depthCompareOp)));
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.blendEnable, sizeof(payload.blendEnable)));
+        if (payload.colorAttachmentCount > 0) {
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.srcColorBlendFactor, sizeof(payload.srcColorBlendFactor)));
+            XXHASH_VERIFY(XXH64_update(
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.dstColorBlendFactor, sizeof(payload.dstColorBlendFactor)));
+                m_hashState,
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.srcAlphaBlendFactor, sizeof(payload.srcAlphaBlendFactor)));
+                payload.colorBlendAttachments.data(),
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.dstAlphaBlendFactor, sizeof(payload.dstAlphaBlendFactor)));
+                sizeof(payload.colorBlendAttachments[0]) * payload.colorAttachmentCount));
-        XXHASH_VERIFY(XXH64_update(m_hashState, &payload.colorWriteMask, sizeof(payload.colorWriteMask)));
+        }
         return XXH64_digest(m_hashState);
     }
 
@@ -61,6 +75,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         MOBILEGL_ASSERT(payload.vertexInputState != nullptr, "PipelineFactory: vertexInputState is null");
         MOBILEGL_ASSERT(payload.pipelineLayout != VK_NULL_HANDLE, "PipelineFactory: pipelineLayout is null");
         MOBILEGL_ASSERT(payload.renderPass != VK_NULL_HANDLE, "PipelineFactory: renderPass is null");
+        MOBILEGL_ASSERT(payload.colorAttachmentCount <= PipelineCreatePayload::kMaxColorAttachments,
+                "PipelineFactory: colorAttachmentCount=%u is unexpectedly large",
+                payload.colorAttachmentCount);
+        MGLOG_D("PipelineFactory::CreatePipeline: programHash=0x%llx vertexInputHash=0x%llx colorAttachmentCount=%u subpass=%u",
+            static_cast<unsigned long long>(payload.programHash),
+            static_cast<unsigned long long>(payload.vertexInputHash),
+            payload.colorAttachmentCount,
+            payload.subpass);
 
         static constexpr VkDynamicState kDynamicStates[] = {
             VK_DYNAMIC_STATE_VIEWPORT,
@@ -95,18 +117,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         depthStencil.depthBoundsTestEnable = VK_FALSE;
         depthStencil.stencilTestEnable = VK_FALSE;
 
-        VkPipelineColorBlendAttachmentState colorAttach{};
+        Vector<VkPipelineColorBlendAttachmentState> colorAttachments(payload.colorAttachmentCount);
-        colorAttach.colorWriteMask = payload.colorWriteMask;
+        for (Uint32 i = 0; i < payload.colorAttachmentCount; ++i) {
-        colorAttach.blendEnable = payload.blendEnable ? VK_TRUE : VK_FALSE;
+            colorAttachments[i] = payload.colorBlendAttachments[i];
-        colorAttach.srcColorBlendFactor = payload.srcColorBlendFactor;
+        }
-        colorAttach.dstColorBlendFactor = payload.dstColorBlendFactor;
-        colorAttach.colorBlendOp = VK_BLEND_OP_ADD;
-        colorAttach.srcAlphaBlendFactor = payload.srcAlphaBlendFactor;
-        colorAttach.dstAlphaBlendFactor = payload.dstAlphaBlendFactor;
-        colorAttach.alphaBlendOp = VK_BLEND_OP_ADD;
         VkPipelineColorBlendStateCreateInfo blend{VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO};
-        blend.attachmentCount = 1;
+        blend.attachmentCount = payload.colorAttachmentCount;
-        blend.pAttachments = &colorAttach;
+        blend.pAttachments = colorAttachments.empty() ? nullptr : colorAttachments.data();
 
         VkGraphicsPipelineCreateInfo gpi{VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO};
         gpi.stageCount = static_cast<Uint32>(payload.stages->size());
@@ -124,7 +141,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         gpi.subpass = payload.subpass;
 
         VkPipeline pipeline = VK_NULL_HANDLE;
-        VK_VERIFY(vkCreateGraphicsPipelines(m_device, VK_NULL_HANDLE, 1, &gpi, nullptr, &pipeline),
+        VK_VERIFY(vkCreateGraphicsPipelines(m_device, m_pipelineCache, 1, &gpi, nullptr, &pipeline),
                   "vkCreateGraphicsPipelines");
         return pipeline;
     }

MobileGL/MG_Backend/DirectVulkan/Renderer/PipelineFactory.h

@@ -10,6 +10,7 @@
 
 #include "Config.h"
 #include "../VkIncludes.h"
+#include "MG_State/GLState/FramebufferState/FramebufferObject.h"
 #include <Includes.h>
 
 namespace MobileGL::MG_Backend::DirectVulkan {
@@ -18,10 +19,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         using HashType = Uint64;
 
         struct PipelineCreatePayload {
+            static constexpr Uint32 kMaxColorAttachments = MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS;
+
             HashType programHash = 0;
             HashType vertexInputHash = 0;
             VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
             VkRenderPass renderPass = VK_NULL_HANDLE;
+            Uint32 colorAttachmentCount = 1;
             Uint32 subpass = 0;
             VkPrimitiveTopology topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
             VkCullModeFlags cullMode = VK_CULL_MODE_BACK_BIT;
@@ -29,20 +33,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             Bool depthTestEnable = false;
             Bool depthWriteEnable = false;
             VkCompareOp depthCompareOp = VK_COMPARE_OP_ALWAYS;
-            Bool blendEnable = false;
+            Array<VkPipelineColorBlendAttachmentState, kMaxColorAttachments> colorBlendAttachments{};
-            VkBlendFactor srcColorBlendFactor = VK_BLEND_FACTOR_ONE;
-            VkBlendFactor dstColorBlendFactor = VK_BLEND_FACTOR_ZERO;
-            VkBlendFactor srcAlphaBlendFactor = VK_BLEND_FACTOR_ONE;
-            VkBlendFactor dstAlphaBlendFactor = VK_BLEND_FACTOR_ZERO;
-            VkColorComponentFlags colorWriteMask =
-                VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |
-                VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
             const Vector<VkPipelineShaderStageCreateInfo>* stages = nullptr;
             const VkPipelineVertexInputStateCreateInfo* vertexInputState = nullptr;
         };
 
-        explicit PipelineFactory(VkDevice device, const VulkanRendererConfig& config):
+        explicit PipelineFactory(VkDevice device, const VulkanRendererConfig& config);
-            m_device(device), m_config(config) {}
         ~PipelineFactory();
         PipelineFactory(const PipelineFactory&) = delete;
 
@@ -55,6 +51,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
 
         VkDevice m_device = VK_NULL_HANDLE;
         const VulkanRendererConfig& m_config;
+        VkPipelineCache m_pipelineCache = VK_NULL_HANDLE;
         UnorderedMap<HashType, VkPipeline> m_cache;
         static inline XXH64_state_t* m_hashState = XXH64_createState();
     };

MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.h

@@ -11,11 +11,22 @@
 #include "../VkIncludes.h"
 #include "MG_State/GLState/ProgramState/ProgramObject.h"
 #include "MG_State/GLState/ProgramState/ShaderObject.h"
+#include "MG_State/GLState/TextureState/TextureEnum.h"
+
 #include <Includes.h>
 
 namespace MobileGL::MG_Backend::DirectVulkan {
     class ProgramFactory {
     public:
+        enum class DescriptorBindingKind : Uint8 {
+            None = 0,
+            UniformBufferDynamic,
+            CombinedImageSampler,
+            UniformTexelBuffer,
+            StorageBuffer,
+            StorageImage
+        };
+
         enum class CompileOptionBit : Uint {
             None = 0,
             PositionYFlip = 1 << 0,
@@ -26,10 +37,34 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         };
         using CompileOptionFlags = Flags<CompileOptionBit>;
         using HashType = Uint64;
+
         struct VkProgramObject {
+            static constexpr Uint32 kMaxVertexInputLocations = 32;
+
             HashType hash = 0;
             Vector<VkPipelineShaderStageCreateInfo> stages;
             Vector<VkShaderModule> modules;
+
+            // Layout data (previously in separate VkProgramLayout)
+            VkDescriptorSetLayout descriptorSetLayout = VK_NULL_HANDLE;
+            VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
+            Vector<DescriptorBindingKind> bindingKinds;
+            Vector<Uint32> dynamicBindings;
+            Vector<Int> uniformBlockIndexByBinding;
+            Vector<String> samplerNameByBinding;
+            Vector<Int> samplerUniformLocationByBinding;
+            Vector<TextureTarget> samplerTextureTargetByBinding;
+            Vector<String> storageBlockNameByBinding;
+            Vector<Int> storageBlockIndexByBinding;
+            Int globalUboBinding = -1;
+            Uint32 activeVertexInputLocationMask = 0;
+            Array<GLenum, kMaxVertexInputLocations> vertexInputTypes{};
+            Uint32 activeFragmentOutputLocationMask = 0;
+            Array<GLenum, kMaxVertexInputLocations> fragmentOutputTypes{};
+            ShaderStage rasterizationProducerStage = ShaderStage::Unknown;
+            Uint32 producerOutputComponentCount = 0;
+            Uint32 fragmentInputComponentCount = 0;
+
             static inline VkDevice s_device = VK_NULL_HANDLE;
 
             VkProgramObject() = default;
@@ -39,54 +74,134 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 hash = other.hash;
                 stages = std::move(other.stages);
                 modules = std::move(other.modules);
+                descriptorSetLayout = other.descriptorSetLayout;
+                pipelineLayout = other.pipelineLayout;
+                bindingKinds = std::move(other.bindingKinds);
+                dynamicBindings = std::move(other.dynamicBindings);
+                uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
+                samplerNameByBinding = std::move(other.samplerNameByBinding);
+                samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
+                samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);
+                storageBlockNameByBinding = std::move(other.storageBlockNameByBinding);
+                storageBlockIndexByBinding = std::move(other.storageBlockIndexByBinding);
+                globalUboBinding = other.globalUboBinding;
+                activeVertexInputLocationMask = other.activeVertexInputLocationMask;
+                vertexInputTypes = other.vertexInputTypes;
+                activeFragmentOutputLocationMask = other.activeFragmentOutputLocationMask;
+                fragmentOutputTypes = other.fragmentOutputTypes;
+                rasterizationProducerStage = other.rasterizationProducerStage;
+                producerOutputComponentCount = other.producerOutputComponentCount;
+                fragmentInputComponentCount = other.fragmentInputComponentCount;
                 other.hash = 0;
+                other.descriptorSetLayout = VK_NULL_HANDLE;
+                other.pipelineLayout = VK_NULL_HANDLE;
+                other.globalUboBinding = -1;
+                other.activeVertexInputLocationMask = 0;
+                other.activeFragmentOutputLocationMask = 0;
+                other.rasterizationProducerStage = ShaderStage::Unknown;
+                other.producerOutputComponentCount = 0;
+                other.fragmentInputComponentCount = 0;
             }
             VkProgramObject& operator=(VkProgramObject&& other) noexcept {
                 if (this == &other) {
                     return *this;
                 }
-                DestroyModules();
+                Destroy();
-                stages.clear();
                 hash = other.hash;
                 stages = std::move(other.stages);
                 modules = std::move(other.modules);
+                descriptorSetLayout = other.descriptorSetLayout;
+                pipelineLayout = other.pipelineLayout;
+                bindingKinds = std::move(other.bindingKinds);
+                dynamicBindings = std::move(other.dynamicBindings);
+                uniformBlockIndexByBinding = std::move(other.uniformBlockIndexByBinding);
+                samplerNameByBinding = std::move(other.samplerNameByBinding);
+                samplerUniformLocationByBinding = std::move(other.samplerUniformLocationByBinding);
+                samplerTextureTargetByBinding = std::move(other.samplerTextureTargetByBinding);
+                storageBlockNameByBinding = std::move(other.storageBlockNameByBinding);
+                storageBlockIndexByBinding = std::move(other.storageBlockIndexByBinding);
+                globalUboBinding = other.globalUboBinding;
+                activeVertexInputLocationMask = other.activeVertexInputLocationMask;
+                vertexInputTypes = other.vertexInputTypes;
+                activeFragmentOutputLocationMask = other.activeFragmentOutputLocationMask;
+                fragmentOutputTypes = other.fragmentOutputTypes;
+                rasterizationProducerStage = other.rasterizationProducerStage;
+                producerOutputComponentCount = other.producerOutputComponentCount;
+                fragmentInputComponentCount = other.fragmentInputComponentCount;
                 other.hash = 0;
+                other.descriptorSetLayout = VK_NULL_HANDLE;
+                other.pipelineLayout = VK_NULL_HANDLE;
+                other.globalUboBinding = -1;
+                other.activeVertexInputLocationMask = 0;
+                other.activeFragmentOutputLocationMask = 0;
+                other.rasterizationProducerStage = ShaderStage::Unknown;
+                other.producerOutputComponentCount = 0;
+                other.fragmentInputComponentCount = 0;
                 return *this;
             }
 
             ~VkProgramObject() {
-                DestroyModules();
+                Destroy();
-                stages.clear();
             }
 
         private:
-            void DestroyModules() {
+            void Destroy() {
-                for (auto module : modules) {
+                if (s_device != VK_NULL_HANDLE) {
-                    if (module != VK_NULL_HANDLE && s_device != VK_NULL_HANDLE) {
+                    if (pipelineLayout != VK_NULL_HANDLE) {
-                        vkDestroyShaderModule(s_device, module, nullptr);
+                        vkDestroyPipelineLayout(s_device, pipelineLayout, nullptr);
+                        pipelineLayout = VK_NULL_HANDLE;
+                    }
+                    if (descriptorSetLayout != VK_NULL_HANDLE) {
+                        vkDestroyDescriptorSetLayout(s_device, descriptorSetLayout, nullptr);
+                        descriptorSetLayout = VK_NULL_HANDLE;
+                    }
+                    for (auto module : modules) {
+                        if (module != VK_NULL_HANDLE) {
+                            vkDestroyShaderModule(s_device, module, nullptr);
+                        }
                     }
                 }
                 modules.clear();
+                stages.clear();
             }
         };
 
-        explicit ProgramFactory(VkDevice device, const VulkanRendererConfig& config)
+        explicit ProgramFactory(VkDevice device, const VulkanRendererConfig& config, Uint32 maxBindings = 16)
-            : m_device(device), m_config(config) {
+            : m_device(device), m_config(config), m_maxBindings(maxBindings) {
             VkProgramObject::s_device = device;
         }
-        ~ProgramFactory();
+        ~ProgramFactory() = default;
         ProgramFactory(const ProgramFactory&) = delete;
 
         HashType ComputeHash(const MG_State::GLState::ProgramObject& program, CompileOptionFlags flags) const;
-        Vector<VkPipelineShaderStageCreateInfo>& GetOrCreatePipelineShaderStages(
+        const VkProgramObject& GetOrCreateProgram(
             const MG_State::GLState::ProgramObject& program, CompileOptionFlags flags);
 
         static VkShaderStageFlagBits ToVkStage(ShaderStage stage);
 
     private:
+        struct ProgramLookupCache {
+            const MG_State::GLState::ProgramObject* program = nullptr;
+            Uint32 backendStateVersion = 0;
+            CompileOptionFlags flags{};
+            HashType hash = 0;
+        };
+
+        static TextureTarget UniformTypeToTextureTarget(GLenum glType);
+        void ReflectVertexInputs(const Vector<SharedPtr<MG_State::GLState::ShaderObject>>& shaders,
+                     const Vector<Vector<Uint>>& spirv,
+                     VkProgramObject& entry) const;
+        void ReflectFragmentOutputs(const Vector<SharedPtr<MG_State::GLState::ShaderObject>>& shaders,
+                        const Vector<Vector<Uint>>& spirv,
+                        VkProgramObject& entry) const;
+        void ReflectLayout(const MG_State::GLState::ProgramObject& program, const Vector<Vector<Uint>>& spirv,
+                           VkProgramObject& entry) const;
+
         VkDevice m_device = VK_NULL_HANDLE;
+        Uint32 m_maxBindings = 0;
         UnorderedMap<HashType, VkProgramObject> m_cache;
         const VulkanRendererConfig& m_config;
+        mutable ProgramLookupCache m_lastLookup;
         static inline XXH64_state_t* m_hashState = XXH64_createState();
     };
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp

@@ -290,7 +290,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             imageInfo.format = m_depthStencilFormat;
             imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
             imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
-            imageInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
+            imageInfo.usage = VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
             imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
             imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
             VK_VERIFY(vkCreateImage(device, &imageInfo, nullptr, &m_depthStencilImages[i]), "vkCreateImage(depth)");

MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.cpp

@@ -1,985 +0,0 @@
-// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.cpp
-// Copyright (c) 2025-2026 MobileGL-Dev
-// Licensed under the GNU Lesser General Public License v3.0:
-//   https://www.gnu.org/licenses/gpl-3.0.txt
-//   https://www.gnu.org/licenses/lgpl-3.0.txt
-// SPDX-License-Identifier: LGPL-3.0-only
-// End of Source File Header
-
-#include "UniformDescriptorBinder.h"
-
-#include "MG_State/GLState/Core.h"
-#include "MG_State/GLState/ProgramState/ProgramObject.h"
-#include "MG_Util/Converters/MGToStr/FramebufferEnumConverter.h"
-#include "MG_Util/ShaderTranspiler/Types.h"
-#include <limits>
-
-namespace MobileGL::MG_Backend::DirectVulkan {
-    static Bool FindFramebufferAttachmentForTexture(const MG_State::GLState::FramebufferObject& framebuffer,
-                                                    const MG_State::GLState::ITextureObject& texture,
-                                                    FramebufferAttachmentType& outAttachment, Int& outLevel) {
-        const auto& attachments = framebuffer.GetAllAttachmentObjects();
-        for (SizeT i = 0; i < attachments.size(); ++i) {
-            const auto attachmentType = static_cast<FramebufferAttachmentType>(i);
-            if (attachmentType == FramebufferAttachmentType::None) {
-                continue;
-            }
-
-            const auto& attachment = attachments[i];
-            if (!attachment.IsTexture()) {
-                continue;
-            }
-
-            auto attachedTexture = attachment.GetTexture();
-            if (attachedTexture && attachedTexture.get() == &texture) {
-                outAttachment = attachmentType;
-                outLevel = attachment.GetTextureLevel();
-                return true;
-            }
-        }
-
-        return false;
-    }
-
-    static Bool IsValidSampledImageLayout(VkImageLayout layout) {
-        switch (layout) {
-        case VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL:
-        case VK_IMAGE_LAYOUT_GENERAL:
-        case VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL:
-        case VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_OPTIMAL:
-        case VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_OPTIMAL:
-            return true;
-        default:
-            return false;
-        }
-    }
-
-    VkDeviceSize UniformDescriptorBinder::AlignUp(VkDeviceSize value, VkDeviceSize alignment) {
-        if (alignment == 0) {
-            return value;
-        }
-        return (value + alignment - 1) / alignment * alignment;
-    }
-
-    Uint64 UniformDescriptorBinder::ComputeProgramHash(const MG_State::GLState::ProgramObject& program) {
-        XXH64_state_t* state = XXH64_createState();
-        XXHASH_VERIFY(XXH64_reset(state, 0xC0D3A11ULL));
-        const auto& spirv = program.GetGeneratedSpirv();
-        for (const auto& module : spirv) {
-            XXHASH_VERIFY(XXH64_update(state, module.data(), module.size() * sizeof(Uint)));
-        }
-        const Uint32 blockCount = static_cast<Uint32>(program.GetActiveUniformBlocksCount());
-        XXHASH_VERIFY(XXH64_update(state, &blockCount, sizeof(blockCount)));
-        for (Uint32 i = 0; i < blockCount; ++i) {
-            const Uint32 binding = program.GetUniformBlockBinding(i);
-            XXHASH_VERIFY(XXH64_update(state, &binding, sizeof(binding)));
-        }
-        const Uint64 hash = XXH64_digest(state);
-        XXH64_freeState(state);
-        return hash;
-    }
-
-    Bool UniformDescriptorBinder::IsSamplerUniformType(GLenum glType) {
-        switch (glType) {
-        case GL_SAMPLER_1D:
-        case GL_SAMPLER_2D:
-        case GL_SAMPLER_3D:
-        case GL_SAMPLER_CUBE:
-        case GL_SAMPLER_1D_SHADOW:
-        case GL_SAMPLER_2D_SHADOW:
-        case GL_SAMPLER_1D_ARRAY:
-        case GL_SAMPLER_2D_ARRAY:
-        case GL_SAMPLER_1D_ARRAY_SHADOW:
-        case GL_SAMPLER_2D_ARRAY_SHADOW:
-        case GL_SAMPLER_2D_MULTISAMPLE:
-        case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
-        case GL_SAMPLER_CUBE_SHADOW:
-        case GL_SAMPLER_BUFFER:
-        case GL_SAMPLER_2D_RECT:
-        case GL_SAMPLER_2D_RECT_SHADOW:
-        case GL_INT_SAMPLER_1D:
-        case GL_INT_SAMPLER_2D:
-        case GL_INT_SAMPLER_3D:
-        case GL_INT_SAMPLER_CUBE:
-        case GL_INT_SAMPLER_1D_ARRAY:
-        case GL_INT_SAMPLER_2D_ARRAY:
-        case GL_INT_SAMPLER_2D_MULTISAMPLE:
-        case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
-        case GL_INT_SAMPLER_BUFFER:
-        case GL_INT_SAMPLER_2D_RECT:
-        case GL_UNSIGNED_INT_SAMPLER_1D:
-        case GL_UNSIGNED_INT_SAMPLER_2D:
-        case GL_UNSIGNED_INT_SAMPLER_3D:
-        case GL_UNSIGNED_INT_SAMPLER_CUBE:
-        case GL_UNSIGNED_INT_SAMPLER_1D_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
-        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_BUFFER:
-        case GL_UNSIGNED_INT_SAMPLER_2D_RECT:
-            return true;
-        default:
-            return false;
-        }
-    }
-
-    TextureTarget UniformDescriptorBinder::UniformTypeToTextureTarget(GLenum glType) {
-        switch (glType) {
-        case GL_SAMPLER_1D:
-        case GL_INT_SAMPLER_1D:
-        case GL_UNSIGNED_INT_SAMPLER_1D:
-            return TextureTarget::Texture1D;
-        case GL_SAMPLER_3D:
-        case GL_INT_SAMPLER_3D:
-        case GL_UNSIGNED_INT_SAMPLER_3D:
-            return TextureTarget::Texture3D;
-        case GL_SAMPLER_CUBE:
-        case GL_SAMPLER_CUBE_SHADOW:
-        case GL_INT_SAMPLER_CUBE:
-        case GL_UNSIGNED_INT_SAMPLER_CUBE:
-            return TextureTarget::TextureCubeMap;
-        case GL_SAMPLER_2D_MULTISAMPLE:
-        case GL_INT_SAMPLER_2D_MULTISAMPLE:
-        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
-            return TextureTarget::Texture2DMultisample;
-        case GL_SAMPLER_BUFFER:
-        case GL_INT_SAMPLER_BUFFER:
-        case GL_UNSIGNED_INT_SAMPLER_BUFFER:
-            return TextureTarget::TextureBuffer;
-        case GL_SAMPLER_1D_ARRAY:
-        case GL_SAMPLER_1D_ARRAY_SHADOW:
-        case GL_INT_SAMPLER_1D_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_1D_ARRAY:
-            return TextureTarget::Texture1DArray;
-        case GL_SAMPLER_2D_ARRAY:
-        case GL_SAMPLER_2D_ARRAY_SHADOW:
-        case GL_INT_SAMPLER_2D_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
-            return TextureTarget::Texture2DArray;
-        case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
-        case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
-        case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY:
-            return TextureTarget::Texture2DMultisampleArray;
-        case GL_SAMPLER_2D_RECT:
-        case GL_SAMPLER_2D_RECT_SHADOW:
-        case GL_INT_SAMPLER_2D_RECT:
-        case GL_UNSIGNED_INT_SAMPLER_2D_RECT:
-            return TextureTarget::TextureRectangle;
-        case GL_SAMPLER_2D:
-        case GL_SAMPLER_2D_SHADOW:
-        case GL_INT_SAMPLER_2D:
-        case GL_UNSIGNED_INT_SAMPLER_2D:
-        default:
-            return TextureTarget::Texture2D;
-        }
-    }
-
-    Bool UniformDescriptorBinder::Initialize(VkDevice device, VmaAllocator allocator,
-                                             VkDeviceSize minUniformBufferOffsetAlignment, Uint32 frameCount,
-                                             Uint32 maxBindings, Uint32 setsPerFrame, VkDeviceSize perFrameUploadBytes,
-                                             VkTextureManager* textureManager, VkSamplerManager* samplerManager) {
-        Shutdown();
-
-        MOBILEGL_ASSERT(device != VK_NULL_HANDLE, "UniformDescriptorBinder::Initialize requires valid VkDevice");
-        MOBILEGL_ASSERT(allocator != nullptr, "UniformDescriptorBinder::Initialize requires valid VMA allocator");
-        MOBILEGL_ASSERT(frameCount > 0, "UniformDescriptorBinder::Initialize requires frameCount > 0");
-        MOBILEGL_ASSERT(maxBindings > 0, "UniformDescriptorBinder::Initialize requires maxBindings > 0");
-        MOBILEGL_ASSERT(setsPerFrame > 0, "UniformDescriptorBinder::Initialize requires setsPerFrame > 0");
-        MOBILEGL_ASSERT(textureManager != nullptr,
-                        "UniformDescriptorBinder::Initialize requires valid texture manager");
-        MOBILEGL_ASSERT(samplerManager != nullptr,
-                        "UniformDescriptorBinder::Initialize requires valid sampler manager");
-
-        m_device = device;
-        m_allocator = allocator;
-        m_minDynamicOffsetAlignment = std::max<VkDeviceSize>(1, minUniformBufferOffsetAlignment);
-        m_perFrameUploadBytes = perFrameUploadBytes;
-        m_frameCount = frameCount;
-        m_maxBindings = maxBindings;
-        m_setsPerFrame = setsPerFrame;
-        m_peakDescriptorSetsObserved = 0;
-        m_textureManager = textureManager;
-        m_samplerManager = samplerManager;
-
-        m_frames.resize(m_frameCount);
-        for (Uint32 frameIndex = 0; frameIndex < m_frameCount; ++frameIndex) {
-            auto& frame = m_frames[frameIndex];
-            frame.writeCursor = 0;
-            frame.activeDescriptorPoolIndex = 0;
-            frame.allocatedSetsThisFrame = 0;
-            frame.peakAllocatedSetsThisFrame = 0;
-            frame.descriptorPools.clear();
-
-            VkDescriptorPool initialPool = VK_NULL_HANDLE;
-            if (!CreateDescriptorPool(m_setsPerFrame, initialPool)) {
-                MGLOG_E("UniformDescriptorBinder::Initialize failed: cannot create frame descriptor pool %u",
-                        frameIndex);
-                Shutdown();
-                return false;
-            }
-            frame.descriptorPools.push_back({initialPool, m_setsPerFrame, 0});
-            MGLOG_D("UniformDescriptorBinder: frame %u descriptor pool created (maxSets=%u)", frameIndex, m_setsPerFrame);
-
-            const Bool created = frame.uploadBuffer.Create(
-                m_allocator, m_perFrameUploadBytes, VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, VMA_MEMORY_USAGE_AUTO,
-                VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT);
-            if (!created) {
-                MGLOG_E("UniformDescriptorBinder::Initialize failed: cannot create frame upload buffer %u", frameIndex);
-                Shutdown();
-                return false;
-            }
-        }
-
-        return true;
-    }
-
-    void UniformDescriptorBinder::Shutdown() {
-        for (auto& frame : m_frames) {
-            frame.uploadBuffer.Destroy();
-            if (m_device != VK_NULL_HANDLE) {
-                for (auto& bucket : frame.descriptorPools) {
-                    if (bucket.handle != VK_NULL_HANDLE) {
-                        vkDestroyDescriptorPool(m_device, bucket.handle, nullptr);
-                        bucket.handle = VK_NULL_HANDLE;
-                    }
-                }
-            }
-            frame.descriptorPools.clear();
-            frame.activeDescriptorPoolIndex = 0;
-            frame.allocatedSetsThisFrame = 0;
-            frame.peakAllocatedSetsThisFrame = 0;
-            frame.writeCursor = 0;
-        }
-        m_frames.clear();
-        DestroyProgramLayouts();
-
-        m_allocator = nullptr;
-        m_device = VK_NULL_HANDLE;
-        m_minDynamicOffsetAlignment = 1;
-        m_perFrameUploadBytes = 0;
-        m_frameCount = 0;
-        m_maxBindings = 0;
-        m_setsPerFrame = 0;
-        m_peakDescriptorSetsObserved = 0;
-        m_textureManager = nullptr;
-        m_samplerManager = nullptr;
-    }
-
-    void UniformDescriptorBinder::BeginFrame(Uint32 frameIndex) {
-        MOBILEGL_ASSERT(frameIndex < m_frames.size(), "UniformDescriptorBinder::BeginFrame invalid frame index");
-        auto& frame = m_frames[frameIndex];
-        if (frame.peakAllocatedSetsThisFrame > m_peakDescriptorSetsObserved) {
-            m_peakDescriptorSetsObserved = frame.peakAllocatedSetsThisFrame;
-            MGLOG_D(
-                "UniformDescriptorBinder: new descriptor set peak observed=%u (base setsPerFrame=%u, frame=%u, pools=%zu)",
-                m_peakDescriptorSetsObserved, m_setsPerFrame, frameIndex, frame.descriptorPools.size());
-        }
-        frame.writeCursor = 0;
-        frame.activeDescriptorPoolIndex = 0;
-        frame.allocatedSetsThisFrame = 0;
-        frame.peakAllocatedSetsThisFrame = 0;
-        for (auto& bucket : frame.descriptorPools) {
-            bucket.allocatedSets = 0;
-            if (bucket.handle == VK_NULL_HANDLE) {
-                continue;
-            }
-            VK_VERIFY(vkResetDescriptorPool(m_device, bucket.handle, 0),
-                      "UniformDescriptorBinder::BeginFrame, vkResetDescriptorPool");
-        }
-    }
-
-    Bool UniformDescriptorBinder::ReflectBindingKinds(const MG_State::GLState::ProgramObject& program,
-                                                      Vector<BindingKind>& outKinds) const {
-        outKinds.assign(m_maxBindings, BindingKind::None);
-
-        const auto& spirv = program.GetGeneratedSpirv();
-        for (const auto& module : spirv) {
-            if (module.empty()) {
-                continue;
-            }
-
-            spvc_context context = nullptr;
-            spvc_parsed_ir ir = nullptr;
-            spvc_compiler compiler = nullptr;
-            spvc_resources resources = nullptr;
-
-            if (spvc_context_create(&context) != SPVC_SUCCESS) {
-                return false;
-            }
-
-            const spvc_result parseResult = spvc_context_parse_spirv(context, module.data(), module.size(), &ir);
-            if (parseResult != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-
-            const spvc_result compilerResult =
-                spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler);
-            if (compilerResult != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-
-            if (spvc_compiler_create_shader_resources(compiler, &resources) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-
-            const auto applyBindings = [&](spvc_resource_type resourceType, BindingKind kind) {
-                const spvc_reflected_resource* list = nullptr;
-                size_t count = 0;
-                if (spvc_resources_get_resource_list_for_type(resources, resourceType, &list, &count) != SPVC_SUCCESS) {
-                    return;
-                }
-                for (size_t i = 0; i < count; ++i) {
-                    const Uint32 binding =
-                        spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationBinding);
-                    if (binding >= m_maxBindings) {
-                        continue;
-                    }
-                    if (kind == BindingKind::CombinedImageSampler) {
-                        outKinds[binding] = BindingKind::CombinedImageSampler;
-                    } else if (outKinds[binding] == BindingKind::None) {
-                        outKinds[binding] = kind;
-                    }
-                }
-            };
-
-            applyBindings(SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, BindingKind::UniformBufferDynamic);
-            applyBindings(SPVC_RESOURCE_TYPE_SAMPLED_IMAGE, BindingKind::CombinedImageSampler);
-
-            spvc_context_destroy(context);
-        }
-
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::ReflectSamplerBindings(const MG_State::GLState::ProgramObject& program,
-                                                         ProgramLayout& layout) const {
-        layout.samplerUniformLocationByBinding.assign(m_maxBindings, -1);
-        layout.samplerTextureTargetByBinding.assign(m_maxBindings, TextureTarget::Texture2D);
-
-        const auto& spirv = program.GetGeneratedSpirv();
-        for (const auto& module : spirv) {
-            if (module.empty()) {
-                continue;
-            }
-
-            spvc_context context = nullptr;
-            spvc_parsed_ir ir = nullptr;
-            spvc_compiler compiler = nullptr;
-            spvc_resources resources = nullptr;
-
-            if (spvc_context_create(&context) != SPVC_SUCCESS) {
-                return false;
-            }
-            if (spvc_context_parse_spirv(context, module.data(), module.size(), &ir) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-            if (spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP,
-                                             &compiler) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-            if (spvc_compiler_create_shader_resources(compiler, &resources) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-
-            const spvc_reflected_resource* list = nullptr;
-            size_t count = 0;
-            if (spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_SAMPLED_IMAGE, &list, &count) ==
-                SPVC_SUCCESS) {
-                for (size_t i = 0; i < count; ++i) {
-                    const Uint32 binding =
-                        spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationBinding);
-                    if (binding >= m_maxBindings) {
-                        continue;
-                    }
-
-                    String uniformName = list[i].name ? list[i].name : "";
-                    Int location = program.GetUniformLocation(uniformName);
-                    if (location < 0) {
-                        const auto arraySuffix = uniformName.find("[0]");
-                        if (arraySuffix != String::npos) {
-                            uniformName = uniformName.substr(0, arraySuffix);
-                            location = program.GetUniformLocation(uniformName);
-                        }
-                    }
-                    if (location < 0) {
-                        continue;
-                    }
-
-                    layout.samplerUniformLocationByBinding[binding] = location;
-                    layout.samplerTextureTargetByBinding[binding] =
-                        UniformTypeToTextureTarget(program.GetUniformType(static_cast<Uint>(location)));
-                }
-            }
-
-            spvc_context_destroy(context);
-        }
-
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::ReflectGlobalUboBinding(const MG_State::GLState::ProgramObject& program,
-                                                          ProgramLayout& layout) const {
-        layout.globalUboBinding = -1;
-
-        const auto& spirv = program.GetGeneratedSpirv();
-        for (const auto& module : spirv) {
-            if (module.empty()) {
-                continue;
-            }
-
-            spvc_context context = nullptr;
-            spvc_parsed_ir ir = nullptr;
-            spvc_compiler compiler = nullptr;
-            spvc_resources resources = nullptr;
-
-            if (spvc_context_create(&context) != SPVC_SUCCESS) {
-                return false;
-            }
-            if (spvc_context_parse_spirv(context, module.data(), module.size(), &ir) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-            if (spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP,
-                                             &compiler) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-            if (spvc_compiler_create_shader_resources(compiler, &resources) != SPVC_SUCCESS) {
-                spvc_context_destroy(context);
-                continue;
-            }
-
-            const spvc_reflected_resource* list = nullptr;
-            size_t count = 0;
-            if (spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, &list, &count) ==
-                SPVC_SUCCESS) {
-                for (size_t i = 0; i < count; ++i) {
-                    const char* name = list[i].name ? list[i].name : "";
-                    if (std::strstr(name, MG_Util::ShaderTranspiler::GLOBAL_UBO_NAME) == nullptr) {
-                        continue;
-                    }
-                    const Uint32 binding =
-                        spvc_compiler_get_decoration(compiler, list[i].id, SpvDecorationBinding);
-                    if (binding < m_maxBindings) {
-                        layout.globalUboBinding = static_cast<Int>(binding);
-                    }
-                    break;
-                }
-            }
-
-            spvc_context_destroy(context);
-            if (layout.globalUboBinding >= 0) {
-                break;
-            }
-        }
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::ResolveSamplerDescriptor(VkCommandBuffer commandBuffer,
-                                                           const MG_State::GLState::ProgramObject& program,
-                                                           const ProgramLayout& layout, Uint32 binding,
-                                                           VkDescriptorImageInfo& outImageInfo) const {
-        (void)commandBuffer;
-        MOBILEGL_ASSERT(m_textureManager != nullptr, "ResolveSamplerDescriptor: texture manager is null");
-        MOBILEGL_ASSERT(m_samplerManager != nullptr, "ResolveSamplerDescriptor: sampler manager is null");
-        SharedPtr<MG_State::GLState::ITextureObject> texture;
-        if (!ResolveSamplerTexture(program, layout, binding, texture)) {
-            return false;
-        }
-
-        const Int location = layout.samplerUniformLocationByBinding[binding];
-        const Int unit = program.GetUniformSamplerOrImageUnitIndex(static_cast<Uint>(location));
-        auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
-        const auto samplerOverride = textureUnit.GetSamplerObject();
-        if (!texture) {
-            return false;
-        }
-
-        const MG_State::GLState::SamplerObject* samplerToUse = samplerOverride ? samplerOverride.get() : texture->GetSamplerObject().get();
-        if (!samplerToUse) {
-            return false;
-        }
-        VkTextureManager::TextureResource* resource =
-            m_textureManager->SyncTextureAndGetDescriptor(*texture);
-        if (resource == nullptr) {
-            return false;
-        }
-        if (!IsValidSampledImageLayout(resource->layout)) {
-            auto drawFbo = MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
-            FramebufferAttachmentType attachmentType = FramebufferAttachmentType::None;
-            Int attachmentLevel = 0;
-            if (drawFbo &&
-                FindFramebufferAttachmentForTexture(*drawFbo, *texture, attachmentType, attachmentLevel)) {
-                MOBILEGL_ASSERT(false,
-                                "ResolveSamplerDescriptor: framebuffer feedback loop detected: textureId=%d is bound "
-                                "for sampling at binding=%u, but is also attached to drawFbo=%u as %s (level=%d, "
-                                "trackedLayout=%d)",
-                                texture->GetExternalIndex(), binding, drawFbo->GetExternalIndex(),
-                                MG_Util::ConvertFramebufferAttachmentTypeToString(attachmentType).c_str(),
-                                attachmentLevel, static_cast<Int>(resource->layout));
-            }
-
-            MOBILEGL_ASSERT(false,
-                            "ResolveSamplerDescriptor: invalid sampled image layout=%d for textureId=%d, binding=%u",
-                            static_cast<Int>(resource->layout), texture->GetExternalIndex(), binding);
-            return false;
-        }
-        outImageInfo = {
-            .sampler = m_samplerManager->GetOrCreateSampler(*samplerToUse),
-            .imageView = resource->view,
-            .imageLayout = resource->layout,
-        };
-        return outImageInfo.sampler != VK_NULL_HANDLE;
-    }
-
-    Bool UniformDescriptorBinder::ResolveSamplerDescriptorOverride(
-        const SamplerBindingOverride& samplerBindingOverride,
-        VkDescriptorImageInfo& outImageInfo) const {
-        MOBILEGL_ASSERT(m_textureManager != nullptr, "ResolveSamplerDescriptorOverride: texture manager is null");
-        MOBILEGL_ASSERT(m_samplerManager != nullptr, "ResolveSamplerDescriptorOverride: sampler manager is null");
-        if (samplerBindingOverride.texture == nullptr || samplerBindingOverride.sampler == nullptr) {
-            return false;
-        }
-
-        auto* resource = m_textureManager->SyncTextureAndGetDescriptor(*samplerBindingOverride.texture);
-        if (resource == nullptr || !IsValidSampledImageLayout(resource->layout)) {
-            return false;
-        }
-
-        outImageInfo = {
-            .sampler = m_samplerManager->GetOrCreateSampler(*samplerBindingOverride.sampler),
-            .imageView = resource->view,
-            .imageLayout = resource->layout,
-        };
-        return outImageInfo.sampler != VK_NULL_HANDLE;
-    }
-
-    Bool UniformDescriptorBinder::ResolveSamplerTexture(const MG_State::GLState::ProgramObject& program,
-                                                        const ProgramLayout& layout, Uint32 binding,
-                                                        SharedPtr<MG_State::GLState::ITextureObject>& outTexture) const {
-        outTexture.reset();
-        if (!MG_State::pGLContext || binding >= layout.samplerUniformLocationByBinding.size()) {
-            return false;
-        }
-
-        const Int location = layout.samplerUniformLocationByBinding[binding];
-        if (location < 0) {
-            return false;
-        }
-
-        const Int unit = program.GetUniformSamplerOrImageUnitIndex(static_cast<Uint>(location));
-        if (unit < 0) {
-            return false;
-        }
-
-        auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
-        const TextureTarget preferredTarget = layout.samplerTextureTargetByBinding[binding];
-        outTexture = textureUnit.GetBindingSlot(preferredTarget).GetBoundObject();
-        return outTexture != nullptr;
-    }
-
-    Bool UniformDescriptorBinder::CollectSampledTextures(const MG_State::GLState::ProgramObject& program,
-                                                         Vector<MG_State::GLState::ITextureObject*>& outTextures) {
-        outTextures.clear();
-        ProgramLayout* layout = GetOrCreateProgramLayout(program);
-        if (layout == nullptr) {
-            return false;
-        }
-
-        for (Uint32 binding = 0; binding < m_maxBindings; ++binding) {
-            if (layout->bindingKinds[binding] != BindingKind::CombinedImageSampler) {
-                continue;
-            }
-
-            SharedPtr<MG_State::GLState::ITextureObject> texture;
-            if (!ResolveSamplerTexture(program, *layout, binding, texture) || !texture) {
-                continue;
-            }
-
-            auto found = std::find(outTextures.begin(), outTextures.end(), texture.get());
-            if (found == outTextures.end()) {
-                outTextures.push_back(texture.get());
-            }
-        }
-        return true;
-    }
-
-    UniformDescriptorBinder::ProgramLayout* UniformDescriptorBinder::GetOrCreateProgramLayout(
-        const MG_State::GLState::ProgramObject& program) {
-        const Uint64 hash = ComputeProgramHash(program);
-        auto it = m_programLayouts.find(hash);
-        if (it != m_programLayouts.end()) {
-            return &it->second;
-        }
-
-        ProgramLayout layout{};
-        layout.hash = hash;
-        if (!ReflectBindingKinds(program, layout.bindingKinds)) {
-            MGLOG_E("UniformDescriptorBinder::GetOrCreateProgramLayout failed: reflection failed");
-            return nullptr;
-        }
-        if (!ReflectSamplerBindings(program, layout)) {
-            MGLOG_E("UniformDescriptorBinder::GetOrCreateProgramLayout failed: sampler reflection failed");
-            return nullptr;
-        }
-        if (!ReflectGlobalUboBinding(program, layout)) {
-            MGLOG_E("UniformDescriptorBinder::GetOrCreateProgramLayout failed: global UBO reflection failed");
-            return nullptr;
-        }
-
-        Vector<VkDescriptorSetLayoutBinding> bindings;
-        bindings.reserve(m_maxBindings);
-        for (Uint32 binding = 0; binding < m_maxBindings; ++binding) {
-            const auto kind = layout.bindingKinds[binding];
-            if (kind == BindingKind::None) {
-                continue;
-            }
-
-            VkDescriptorSetLayoutBinding layoutBinding{};
-            layoutBinding.binding = binding;
-            layoutBinding.descriptorCount = 1;
-            layoutBinding.stageFlags = VK_SHADER_STAGE_ALL_GRAPHICS;
-            layoutBinding.pImmutableSamplers = nullptr;
-            if (kind == BindingKind::UniformBufferDynamic) {
-                layoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
-                layout.dynamicBindings.push_back(binding);
-            } else {
-                layoutBinding.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
-            }
-            bindings.push_back(layoutBinding);
-        }
-
-        VkDescriptorSetLayoutCreateInfo setLayoutInfo{};
-        setLayoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
-        setLayoutInfo.bindingCount = static_cast<Uint32>(bindings.size());
-        setLayoutInfo.pBindings = bindings.data();
-        VK_VERIFY(vkCreateDescriptorSetLayout(m_device, &setLayoutInfo, nullptr, &layout.descriptorSetLayout),
-                  "UniformDescriptorBinder::GetOrCreateProgramLayout, vkCreateDescriptorSetLayout");
-
-        VkPipelineLayoutCreateInfo pipelineLayoutInfo{};
-        pipelineLayoutInfo.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
-        pipelineLayoutInfo.setLayoutCount = 1;
-        pipelineLayoutInfo.pSetLayouts = &layout.descriptorSetLayout;
-        VK_VERIFY(vkCreatePipelineLayout(m_device, &pipelineLayoutInfo, nullptr, &layout.pipelineLayout),
-                  "UniformDescriptorBinder::GetOrCreateProgramLayout, vkCreatePipelineLayout");
-
-        auto [insertIt, _] = m_programLayouts.emplace(hash, std::move(layout));
-        return &insertIt->second;
-    }
-
-    VkPipelineLayout UniformDescriptorBinder::GetOrCreatePipelineLayout(const MG_State::GLState::ProgramObject& program) {
-        auto* layout = GetOrCreateProgramLayout(program);
-        return layout ? layout->pipelineLayout : VK_NULL_HANDLE;
-    }
-
-    Bool UniformDescriptorBinder::AllocateUploadRegion(FrameResources& frame, VkDeviceSize size, VkDeviceSize& outOffset) {
-        const VkDeviceSize alignedOffset = AlignUp(frame.writeCursor, m_minDynamicOffsetAlignment);
-        if (alignedOffset + size > m_perFrameUploadBytes) {
-            return false;
-        }
-        outOffset = alignedOffset;
-        frame.writeCursor = alignedOffset + size;
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::GatherBindingPayloads(const MG_State::GLState::ProgramObject& program,
-                                                        Vector<const void*>& outData,
-                                                        Vector<VkDeviceSize>& outSizes) const {
-        outData.assign(m_maxBindings, nullptr);
-        outSizes.assign(m_maxBindings, 0);
-
-        const Uint32 activeUniformBlockCount = static_cast<Uint32>(program.GetActiveUniformBlocksCount());
-        const Uint32 uniformBindingPointCount =
-            static_cast<Uint32>(MG_State::pGLContext->GetBufferBindingPointCount(BufferTarget::Uniform));
-
-        for (Uint32 blockIndex = 0; blockIndex < activeUniformBlockCount; ++blockIndex) {
-            const Uint32 binding = program.GetUniformBlockBinding(blockIndex);
-            if (binding >= m_maxBindings) {
-                continue;
-            }
-
-            VkDeviceSize blockSize = static_cast<VkDeviceSize>(program.GetUBOSizeAt(blockIndex));
-            if (blockSize == 0) {
-                continue;
-            }
-
-            if (binding >= uniformBindingPointCount) {
-                continue;
-            }
-            auto& bindingPoint = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::Uniform, binding);
-            const auto bufferObject = bindingPoint.GetBoundObject();
-            if (!bufferObject) {
-                continue;
-            }
-
-            const auto bufferData = bufferObject->GetDataReadOnly();
-            if (!bufferData || bufferData->empty()) {
-                continue;
-            }
-
-            const auto range = bindingPoint.GetRange();
-            const VkDeviceSize bufferSize = static_cast<VkDeviceSize>(bufferObject->GetSize());
-            VkDeviceSize rangeStart = static_cast<VkDeviceSize>(range.start);
-            VkDeviceSize rangeEnd = static_cast<VkDeviceSize>(range.end);
-
-            if (rangeStart >= bufferSize) {
-                continue;
-            }
-            if (rangeEnd <= rangeStart || rangeEnd > bufferSize) {
-                rangeEnd = bufferSize;
-            }
-
-            VkDeviceSize available = rangeEnd - rangeStart;
-            if (available == 0) {
-                continue;
-            }
-
-            outData[binding] = bufferData->data() + static_cast<SizeT>(rangeStart);
-            outSizes[binding] = std::min(blockSize, available);
-        }
-
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::CreateDescriptorPool(Uint32 maxSets, VkDescriptorPool& outPool) const {
-        outPool = VK_NULL_HANDLE;
-        if (m_device == VK_NULL_HANDLE || maxSets == 0 || m_maxBindings == 0) {
-            return false;
-        }
-
-        const Uint64 descriptorCount64 = static_cast<Uint64>(maxSets) * static_cast<Uint64>(m_maxBindings);
-        if (descriptorCount64 > static_cast<Uint64>(std::numeric_limits<Uint32>::max())) {
-            MGLOG_E("UniformDescriptorBinder::CreateDescriptorPool failed: descriptorCount overflow");
-            return false;
-        }
-
-        const Uint32 descriptorCount = static_cast<Uint32>(descriptorCount64);
-        VkDescriptorPoolSize poolSizes[2]{};
-        poolSizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
-        poolSizes[0].descriptorCount = descriptorCount;
-        poolSizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
-        poolSizes[1].descriptorCount = descriptorCount;
-
-        VkDescriptorPoolCreateInfo poolInfo{};
-        poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
-        poolInfo.maxSets = maxSets;
-        poolInfo.poolSizeCount = static_cast<Uint32>(std::size(poolSizes));
-        poolInfo.pPoolSizes = poolSizes;
-
-        const VkResult result = vkCreateDescriptorPool(m_device, &poolInfo, nullptr, &outPool);
-        if (result != VK_SUCCESS) {
-            MGLOG_E("UniformDescriptorBinder::CreateDescriptorPool failed: vkCreateDescriptorPool returned %d", result);
-            return false;
-        }
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::GrowFrameDescriptorPool(FrameResources& frame, Uint32 frameIndex) {
-        if (frame.descriptorPools.empty()) {
-            return false;
-        }
-
-        const auto& currentBucket = frame.descriptorPools[frame.activeDescriptorPoolIndex];
-        const Uint32 currentMaxSets = std::max<Uint32>(1, currentBucket.maxSets);
-        const Uint32 grownMaxSets = currentMaxSets <= (std::numeric_limits<Uint32>::max() / 2) ? (currentMaxSets * 2)
-                                                                                                 : currentMaxSets;
-
-        VkDescriptorPool grownPool = VK_NULL_HANDLE;
-        if (!CreateDescriptorPool(grownMaxSets, grownPool)) {
-            MGLOG_E("UniformDescriptorBinder::GrowFrameDescriptorPool failed: cannot create grown pool (%u -> %u sets)",
-                    currentMaxSets, grownMaxSets);
-            return false;
-        }
-
-        frame.descriptorPools.push_back({grownPool, grownMaxSets, 0});
-        frame.activeDescriptorPoolIndex = static_cast<Uint32>(frame.descriptorPools.size() - 1);
-        MGLOG_D(
-            "UniformDescriptorBinder: frame %u descriptor pool exhausted, grew pool (%u -> %u sets), poolCount=%zu",
-            frameIndex, currentMaxSets, grownMaxSets, frame.descriptorPools.size());
-        return true;
-    }
-
-    Bool UniformDescriptorBinder::BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
-                                                            const MG_State::GLState::ProgramObject& program,
-                                                            Uint32 frameIndex) {
-        return BindProgramUniformBuffers(commandBuffer, program, frameIndex, nullptr);
-    }
-
-    Bool UniformDescriptorBinder::BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
-                                                            const MG_State::GLState::ProgramObject& program,
-                                                            Uint32 frameIndex,
-                                                            const SamplerBindingOverride* samplerBindingOverride) {
-        ProgramLayout* layout = GetOrCreateProgramLayout(program);
-        MOBILEGL_ASSERT(layout != nullptr,
-                        "UniformDescriptorBinder::BindProgramUniformBuffers: program layout is null");
-
-        auto& frame = m_frames[frameIndex];
-        if (frame.descriptorPools.empty()) {
-            MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: frame descriptor pools are invalid");
-            return false;
-        }
-        if (frame.activeDescriptorPoolIndex >= frame.descriptorPools.size()) {
-            frame.activeDescriptorPoolIndex = 0;
-        }
-
-        VkDescriptorSetAllocateInfo allocInfo{};
-        allocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
-        allocInfo.descriptorSetCount = 1;
-        allocInfo.pSetLayouts = &layout->descriptorSetLayout;
-        VkDescriptorSet descriptorSet = VK_NULL_HANDLE;
-
-        auto allocateFromActivePool = [&](VkResult& outResult) {
-            auto& bucket = frame.descriptorPools[frame.activeDescriptorPoolIndex];
-            allocInfo.descriptorPool = bucket.handle;
-            outResult = vkAllocateDescriptorSets(m_device, &allocInfo, &descriptorSet);
-            if (outResult == VK_SUCCESS) {
-                ++bucket.allocatedSets;
-                ++frame.allocatedSetsThisFrame;
-                frame.peakAllocatedSetsThisFrame = std::max(frame.peakAllocatedSetsThisFrame, frame.allocatedSetsThisFrame);
-            }
-        };
-
-        VkResult allocResult = VK_SUCCESS;
-        allocateFromActivePool(allocResult);
-        if (allocResult == VK_ERROR_OUT_OF_POOL_MEMORY || allocResult == VK_ERROR_FRAGMENTED_POOL) {
-            if (!GrowFrameDescriptorPool(frame, frameIndex)) {
-                MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: descriptor pool growth failed");
-                return false;
-            }
-            allocateFromActivePool(allocResult);
-        }
-        if (allocResult != VK_SUCCESS || descriptorSet == VK_NULL_HANDLE) {
-            MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: vkAllocateDescriptorSets returned %d",
-                    allocResult);
-            return false;
-        }
-
-        Vector<const void*> bindingData;
-        Vector<VkDeviceSize> bindingSizes;
-        if (!GatherBindingPayloads(program, bindingData, bindingSizes)) {
-            MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: cannot gather UBO payloads");
-            return false;
-        }
-
-        static const Uint8 kFallbackData[16] = {};
-        MOBILEGL_ASSERT(m_textureManager != nullptr, "BindProgramUniformBuffers: texture manager is null");
-        MOBILEGL_ASSERT(m_samplerManager != nullptr, "BindProgramUniformBuffers: sampler manager is null");
-
-        Vector<VkWriteDescriptorSet> writes;
-        writes.reserve(m_maxBindings);
-        Vector<VkDescriptorBufferInfo> bufferInfos;
-        Vector<VkDescriptorImageInfo> imageInfos;
-        Vector<Uint32> dynamicOffsets;
-        bufferInfos.reserve(m_maxBindings);
-        imageInfos.reserve(m_maxBindings);
-        dynamicOffsets.reserve(layout->dynamicBindings.size());
-
-        for (Uint32 binding = 0; binding < m_maxBindings; ++binding) {
-            const auto kind = layout->bindingKinds[binding];
-            if (kind == BindingKind::None) {
-                continue;
-            }
-
-            VkWriteDescriptorSet write{};
-            write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
-            write.dstSet = descriptorSet;
-            write.dstBinding = binding;
-            write.dstArrayElement = 0;
-            write.descriptorCount = 1;
-
-            if (kind == BindingKind::UniformBufferDynamic) {
-                const void* payload = bindingData[binding];
-                VkDeviceSize payloadSize = bindingSizes[binding];
-                if (payload == nullptr || payloadSize == 0) {
-                    if (layout->globalUboBinding == static_cast<Int>(binding)) {
-                        const void* globalUboData = program.GetUBOData();
-                        const VkDeviceSize globalUboSize = static_cast<VkDeviceSize>(program.GetUBOSize());
-                        if (globalUboData != nullptr && globalUboSize > 0) {
-                            payload = globalUboData;
-                            payloadSize = globalUboSize;
-                        }
-                    }
-                    if (payload == nullptr || payloadSize == 0) {
-                        payload = kFallbackData;
-                        payloadSize = sizeof(kFallbackData);
-                    }
-                }
-
-                VkDeviceSize payloadOffset = 0;
-                if (!AllocateUploadRegion(frame, payloadSize, payloadOffset)) {
-                    MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: frame upload buffer exhausted");
-                    return false;
-                }
-                if (!frame.uploadBuffer.Upload(payload, payloadSize, payloadOffset)) {
-                    MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: UBO upload failed on binding %u",
-                            binding);
-                    return false;
-                }
-
-                VkDescriptorBufferInfo bufferInfo{};
-                bufferInfo.buffer = frame.uploadBuffer.GetHandle();
-                bufferInfo.offset = 0;
-                bufferInfo.range = payloadSize;
-                bufferInfos.push_back(bufferInfo);
-
-                write.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
-                write.pBufferInfo = &bufferInfos.back();
-                writes.push_back(write);
-                dynamicOffsets.push_back(static_cast<Uint32>(payloadOffset));
-            } else {
-                VkDescriptorImageInfo imageInfo{};
-                Bool hasImage = false;
-                if (samplerBindingOverride != nullptr &&
-                    samplerBindingOverride->binding == binding &&
-                    samplerBindingOverride->texture != nullptr &&
-                    samplerBindingOverride->sampler != nullptr) {
-                    hasImage = ResolveSamplerDescriptorOverride(*samplerBindingOverride, imageInfo);
-                } else {
-                    hasImage = ResolveSamplerDescriptor(commandBuffer, program, *layout, binding, imageInfo);
-                }
-                if (!hasImage) {
-                    MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: sampler binding %u has no valid texture descriptor",
-                            binding);
-                    return false;
-                }
-                if (imageInfo.sampler == VK_NULL_HANDLE || imageInfo.imageView == VK_NULL_HANDLE) {
-                    MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: sampler binding %u has null sampler or imageView",
-                            binding);
-                    return false;
-                }
-                imageInfos.push_back(imageInfo);
-                write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
-                write.pImageInfo = &imageInfos.back();
-                writes.push_back(write);
-            }
-        }
-
-        if (!writes.empty()) {
-            vkUpdateDescriptorSets(m_device, static_cast<Uint32>(writes.size()), writes.data(), 0, nullptr);
-        }
-
-        vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, layout->pipelineLayout, 0, 1, &descriptorSet,
-                                static_cast<Uint32>(dynamicOffsets.size()), dynamicOffsets.data());
-        return true;
-    }
-
-    void UniformDescriptorBinder::DestroyProgramLayouts() {
-        for (auto& [_, layout] : m_programLayouts) {
-            if (layout.pipelineLayout != VK_NULL_HANDLE) {
-                vkDestroyPipelineLayout(m_device, layout.pipelineLayout, nullptr);
-                layout.pipelineLayout = VK_NULL_HANDLE;
-            }
-            if (layout.descriptorSetLayout != VK_NULL_HANDLE) {
-                vkDestroyDescriptorSetLayout(m_device, layout.descriptorSetLayout, nullptr);
-                layout.descriptorSetLayout = VK_NULL_HANDLE;
-            }
-        }
-        m_programLayouts.clear();
-    }
-} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.h

@@ -1,119 +0,0 @@
-// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.h
-// Copyright (c) 2025-2026 MobileGL-Dev
-// Licensed under the GNU Lesser General Public License v3.0:
-//   https://www.gnu.org/licenses/gpl-3.0.txt
-//   https://www.gnu.org/licenses/lgpl-3.0.txt
-// SPDX-License-Identifier: LGPL-3.0-only
-// End of Source File Header
-
-#pragma once
-
-#include "VkBufferObject.h"
-#include "VkSamplerManager.h"
-#include "VkTextureManager.h"
-#include "../VkIncludes.h"
-#include <Includes.h>
-#include <vk_mem_alloc.h>
-
-namespace MobileGL::MG_State::GLState {
-    class ITextureObject;
-    class ProgramObject;
-    class SamplerObject;
-}
-
-namespace MobileGL::MG_Backend::DirectVulkan {
-    class UniformDescriptorBinder {
-    public:
-        enum class BindingKind : Uint8 {
-            None = 0,
-            UniformBufferDynamic,
-            CombinedImageSampler
-        };
-
-        struct SamplerBindingOverride {
-            Uint32 binding = 0;
-            MG_State::GLState::ITextureObject* texture = nullptr;
-            const MG_State::GLState::SamplerObject* sampler = nullptr;
-        };
-
-        Bool Initialize(VkDevice device, VmaAllocator allocator, VkDeviceSize minUniformBufferOffsetAlignment,
-                        Uint32 frameCount, Uint32 maxBindings = 16, Uint32 setsPerFrame = 64,
-                        VkDeviceSize perFrameUploadBytes = 4 * 1024 * 1024,
-                        VkTextureManager* textureManager = nullptr, VkSamplerManager* samplerManager = nullptr);
-        void Shutdown();
-
-        void BeginFrame(Uint32 frameIndex);
-        VkPipelineLayout GetOrCreatePipelineLayout(const MG_State::GLState::ProgramObject& program);
-        Bool CollectSampledTextures(const MG_State::GLState::ProgramObject& program,
-                                    Vector<MG_State::GLState::ITextureObject*>& outTextures);
-        Bool BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
-                                       const MG_State::GLState::ProgramObject& program, Uint32 frameIndex);
-        Bool BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
-                                       const MG_State::GLState::ProgramObject& program, Uint32 frameIndex,
-                                       const SamplerBindingOverride* samplerBindingOverride);
-
-    private:
-        struct DescriptorPoolBucket {
-            VkDescriptorPool handle = VK_NULL_HANDLE;
-            Uint32 maxSets = 0;
-            Uint32 allocatedSets = 0;
-        };
-
-        struct FrameResources {
-            VkBufferObject uploadBuffer;
-            Vector<DescriptorPoolBucket> descriptorPools;
-            Uint32 activeDescriptorPoolIndex = 0;
-            Uint32 allocatedSetsThisFrame = 0;
-            Uint32 peakAllocatedSetsThisFrame = 0;
-            VkDeviceSize writeCursor = 0;
-        };
-
-        struct ProgramLayout {
-            Uint64 hash = 0;
-            VkDescriptorSetLayout descriptorSetLayout = VK_NULL_HANDLE;
-            VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
-            Vector<BindingKind> bindingKinds;
-            Vector<Uint32> dynamicBindings;
-            Vector<Int> samplerUniformLocationByBinding;
-            Vector<TextureTarget> samplerTextureTargetByBinding;
-            Int globalUboBinding = -1;
-        };
-
-        static VkDeviceSize AlignUp(VkDeviceSize value, VkDeviceSize alignment);
-        static Uint64 ComputeProgramHash(const MG_State::GLState::ProgramObject& program);
-        static Bool IsSamplerUniformType(GLenum glType);
-        static TextureTarget UniformTypeToTextureTarget(GLenum glType);
-        Bool ReflectSamplerBindings(const MG_State::GLState::ProgramObject& program, ProgramLayout& layout) const;
-        Bool ReflectGlobalUboBinding(const MG_State::GLState::ProgramObject& program, ProgramLayout& layout) const;
-        Bool ResolveSamplerTexture(const MG_State::GLState::ProgramObject& program, const ProgramLayout& layout,
-                                   Uint32 binding, SharedPtr<MG_State::GLState::ITextureObject>& outTexture) const;
-        Bool ResolveSamplerDescriptor(VkCommandBuffer commandBuffer, const MG_State::GLState::ProgramObject& program,
-                                      const ProgramLayout& layout, Uint32 binding,
-                                      VkDescriptorImageInfo& outImageInfo) const;
-        Bool ResolveSamplerDescriptorOverride(const SamplerBindingOverride& samplerBindingOverride,
-                                              VkDescriptorImageInfo& outImageInfo) const;
-        Bool ReflectBindingKinds(const MG_State::GLState::ProgramObject& program, Vector<BindingKind>& outKinds) const;
-        ProgramLayout* GetOrCreateProgramLayout(const MG_State::GLState::ProgramObject& program);
-        Bool AllocateUploadRegion(FrameResources& frame, VkDeviceSize size, VkDeviceSize& outOffset);
-        Bool GatherBindingPayloads(const MG_State::GLState::ProgramObject& program, Vector<const void*>& outData,
-                                   Vector<VkDeviceSize>& outSizes) const;
-        Bool CreateDescriptorPool(Uint32 maxSets, VkDescriptorPool& outPool) const;
-        Bool GrowFrameDescriptorPool(FrameResources& frame, Uint32 frameIndex);
-        void DestroyProgramLayouts();
-
-        VkDevice m_device = VK_NULL_HANDLE;
-        VmaAllocator m_allocator = nullptr;
-        Vector<FrameResources> m_frames;
-        UnorderedMap<Uint64, ProgramLayout> m_programLayouts;
-
-        VkDeviceSize m_minDynamicOffsetAlignment = 1;
-        VkDeviceSize m_perFrameUploadBytes = 0;
-        Uint32 m_frameCount = 0;
-        Uint32 m_maxBindings = 0;
-        Uint32 m_setsPerFrame = 0;
-        Uint32 m_peakDescriptorSetsObserved = 0;
-        VkTextureManager* m_textureManager = nullptr;
-        VkSamplerManager* m_samplerManager = nullptr;
-    };
-} // namespace MobileGL::MG_Backend::DirectVulkan
-

MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.cpp

@@ -0,0 +1,953 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "UniformManager.h"
+
+#include "MG_Backend/DirectVulkan/DirectVulkanResourceState.h"
+#include "MG_State/GLState/Core.h"
+#include "MG_State/GLState/ProgramState/ProgramObject.h"
+#include "MG_State/GLState/TextureState/TextureObject2D.h"
+#include "MG_State/GLState/TextureState/TextureObjectBuffer.h"
+#include "MG_Util/Converters/MGToStr/FramebufferEnumConverter.h"
+#include "MG_Util/Converters/MGToVk/TextureEnumConverter.h"
+#include "MG_Util/Metrics/TextureMetrics.h"
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <limits>
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    namespace {
+        constexpr Uint kFallbackTexture2DExternalIndex = 0xFFFFFF00u;
+    }
+
+    static Bool FindFramebufferAttachmentForTexture(const MG_State::GLState::FramebufferObject& framebuffer,
+                                                    const MG_State::GLState::ITextureObject& texture,
+                                                    FramebufferAttachmentType& outAttachment, Int& outLevel) {
+        const auto& attachments = framebuffer.GetAllAttachmentObjects();
+        for (SizeT i = 0; i < attachments.size(); ++i) {
+            const auto attachmentType = static_cast<FramebufferAttachmentType>(i);
+            if (attachmentType == FramebufferAttachmentType::None) {
+                continue;
+            }
+
+            const auto& attachment = attachments[i];
+            if (!attachment.IsTexture()) {
+                continue;
+            }
+
+            auto attachedTexture = attachment.GetTexture();
+            if (attachedTexture && attachedTexture.get() == &texture) {
+                outAttachment = attachmentType;
+                outLevel = attachment.GetTextureLevel();
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    static Bool IsValidSampledImageLayout(VkImageLayout layout) {
+        switch (layout) {
+        case VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL:
+        case VK_IMAGE_LAYOUT_GENERAL:
+        case VK_IMAGE_LAYOUT_DEPTH_STENCIL_READ_ONLY_OPTIMAL:
+        case VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_OPTIMAL:
+        case VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_OPTIMAL:
+            return true;
+        default:
+            return false;
+        }
+    }
+
+    static Int ResolveSamplerUnitIndex(const MG_State::GLState::ProgramObject& program, Int location, Uint32 binding) {
+        MOBILEGL_ASSERT(location >= -1, "ResolveSamplerUnitIndex: invalid sampler location for binding %u", binding);
+        if (location < 0) {
+            return 0;
+        }
+        const Int uniformUnit = program.GetUniformSamplerOrImageUnitIndex(static_cast<Uint>(location));
+        MOBILEGL_ASSERT(uniformUnit >= -1,
+                        "ResolveSamplerUnitIndex: invalid texture unit for binding %u location %d (unit=%d)", binding,
+                        location, uniformUnit);
+        return uniformUnit >= 0 ? uniformUnit : 0;
+    }
+
+    static Bool ShouldDumpDescriptorStats() {
+        static const Bool enabled = [] {
+            const char* value = std::getenv("MOBILEGL_DESCRIPTOR_STATS");
+            return value != nullptr && value[0] != '\0' && std::strcmp(value, "0") != 0;
+        }();
+        return enabled;
+    }
+
+    Bool UniformManager::Initialize(VkDevice device, VkBufferManager* bufferManager,
+                                             ProgramFactory* programFactory,
+                                             VkDeviceSize minUniformBufferOffsetAlignment, Uint32 frameCount,
+                                             Uint32 maxBindings, Uint32 setsPerFrame,
+                                             VkTextureManager* textureManager, VkSamplerManager* samplerManager) {
+        Shutdown();
+
+        MOBILEGL_ASSERT(device != VK_NULL_HANDLE, "UniformDescriptorBinder::Initialize requires valid VkDevice");
+        MOBILEGL_ASSERT(bufferManager != nullptr, "UniformDescriptorBinder::Initialize requires valid buffer manager");
+        MOBILEGL_ASSERT(programFactory != nullptr,
+                        "UniformDescriptorBinder::Initialize requires valid program factory");
+        MOBILEGL_ASSERT(frameCount > 0, "UniformDescriptorBinder::Initialize requires frameCount > 0");
+        MOBILEGL_ASSERT(maxBindings > 0, "UniformDescriptorBinder::Initialize requires maxBindings > 0");
+        MOBILEGL_ASSERT(setsPerFrame > 0, "UniformDescriptorBinder::Initialize requires setsPerFrame > 0");
+        MOBILEGL_ASSERT(textureManager != nullptr,
+                        "UniformDescriptorBinder::Initialize requires valid texture manager");
+        MOBILEGL_ASSERT(samplerManager != nullptr,
+                        "UniformDescriptorBinder::Initialize requires valid sampler manager");
+
+        m_device = device;
+        m_bufferManager = bufferManager;
+        m_programFactory = programFactory;
+        m_minDynamicOffsetAlignment = std::max<VkDeviceSize>(1, minUniformBufferOffsetAlignment);
+        m_frameCount = frameCount;
+        m_maxBindings = maxBindings;
+        m_setsPerFrame = setsPerFrame;
+        m_peakDescriptorSetsObserved = 0;
+        m_textureManager = textureManager;
+        m_samplerManager = samplerManager;
+
+        m_frames.resize(m_frameCount);
+        for (Uint32 frameIndex = 0; frameIndex < m_frameCount; ++frameIndex) {
+            auto& frame = m_frames[frameIndex];
+            frame.activeDescriptorPoolIndex = 0;
+            frame.allocatedSetsThisFrame = 0;
+            frame.peakAllocatedSetsThisFrame = 0;
+            frame.descriptorPools.clear();
+
+            VkDescriptorPool initialPool = VK_NULL_HANDLE;
+            if (!CreateDescriptorPool(m_setsPerFrame, initialPool)) {
+                MGLOG_E("UniformDescriptorBinder::Initialize failed: cannot create frame descriptor pool %u",
+                        frameIndex);
+                Shutdown();
+                return false;
+            }
+            frame.descriptorPools.push_back({initialPool, m_setsPerFrame, 0});
+            MGLOG_D("UniformDescriptorBinder: frame %u descriptor pool created (maxSets=%u)", frameIndex,
+                    m_setsPerFrame);
+        }
+
+        return true;
+    }
+
+    void UniformManager::Shutdown() {
+        for (auto& frame : m_frames) {
+            if (m_device != VK_NULL_HANDLE) {
+                for (auto& view : frame.texelBufferViews) {
+                    if (view != VK_NULL_HANDLE) {
+                        vkDestroyBufferView(m_device, view, nullptr);
+                    }
+                }
+                frame.texelBufferViews.clear();
+                frame.descriptorSetCacheByLayout.clear();
+                for (auto& bucket : frame.descriptorPools) {
+                    if (bucket.handle != VK_NULL_HANDLE) {
+                        vkDestroyDescriptorPool(m_device, bucket.handle, nullptr);
+                        bucket.handle = VK_NULL_HANDLE;
+                    }
+                }
+            }
+            frame.descriptorPools.clear();
+            frame.activeDescriptorPoolIndex = 0;
+            frame.allocatedSetsThisFrame = 0;
+            frame.peakAllocatedSetsThisFrame = 0;
+        }
+        m_frames.clear();
+
+        m_bufferManager = nullptr;
+        m_programFactory = nullptr;
+        m_device = VK_NULL_HANDLE;
+        m_minDynamicOffsetAlignment = 1;
+        m_frameCount = 0;
+        m_maxBindings = 0;
+        m_setsPerFrame = 0;
+        m_peakDescriptorSetsObserved = 0;
+        m_textureManager = nullptr;
+        m_samplerManager = nullptr;
+        m_fallbackTexture2D.reset();
+    }
+
+    void UniformManager::BeginFrame(Uint32 frameIndex) {
+        MOBILEGL_ASSERT(frameIndex < m_frames.size(), "UniformDescriptorBinder::BeginFrame invalid frame index");
+        auto& frame = m_frames[frameIndex];
+        for (auto& view : frame.texelBufferViews) {
+            if (view != VK_NULL_HANDLE) {
+                vkDestroyBufferView(m_device, view, nullptr);
+            }
+        }
+        frame.texelBufferViews.clear();
+        if (frame.peakAllocatedSetsThisFrame > m_peakDescriptorSetsObserved) {
+            m_peakDescriptorSetsObserved = frame.peakAllocatedSetsThisFrame;
+            MGLOG_D(
+                "UniformDescriptorBinder: new descriptor set peak observed=%u (base setsPerFrame=%u, frame=%u, pools=%zu)",
+                m_peakDescriptorSetsObserved, m_setsPerFrame, frameIndex, frame.descriptorPools.size());
+        }
+        frame.activeDescriptorPoolIndex = 0;
+        frame.allocatedSetsThisFrame = 0;
+        frame.peakAllocatedSetsThisFrame = 0;
+        for (auto& cacheEntryPair : frame.descriptorSetCacheByLayout) {
+            cacheEntryPair.second.cursor = 0;
+        }
+    }
+
+    Bool UniformManager::ResolveSamplerDescriptor(VkCommandBuffer commandBuffer,
+                                                            const MG_State::GLState::ProgramObject& program,
+                                                            const ProgramFactory::VkProgramObject& programObj,
+                                                            Uint32 binding, VkDescriptorImageInfo& outImageInfo) const {
+        MOBILEGL_ASSERT(m_textureManager != nullptr, "ResolveSamplerDescriptor: texture manager is null");
+        MOBILEGL_ASSERT(m_samplerManager != nullptr, "ResolveSamplerDescriptor: sampler manager is null");
+        MOBILEGL_ASSERT(binding < programObj.samplerNameByBinding.size(),
+                        "ResolveSamplerDescriptor: sampler binding %u name lookup out of range", binding);
+        SharedPtr<MG_State::GLState::ITextureObject> texture;
+        const Bool resolvedTexture = ResolveSamplerTexture(program, programObj, binding, texture);
+        if (!resolvedTexture) {
+            MGLOG_E("ResolveSamplerDescriptor: failed to resolve sampler texture for binding %u ('%s')", binding,
+                programObj.samplerNameByBinding[binding].c_str());
+            return false;
+        }
+
+        const Int location = programObj.samplerUniformLocationByBinding[binding];
+        const Int unit = ResolveSamplerUnitIndex(program, location, binding);
+        auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
+        const auto samplerOverride = textureUnit.GetSamplerObject();
+        const auto preferredTarget = programObj.samplerTextureTargetByBinding[binding];
+        if (texture == nullptr) {
+            texture = GetFallbackTexture(preferredTarget);
+            MOBILEGL_ASSERT(texture != nullptr,
+                            "ResolveSamplerDescriptor: no fallback texture available for binding=%u location=%d unit=%d target=%d",
+                            binding, location, unit, static_cast<Int>(preferredTarget));
+            MGLOG_W(
+                "ResolveSamplerDescriptor: using fallback texture for unbound sampler binding=%u ('%s') location=%d unit=%d target=%d",
+                binding, programObj.samplerNameByBinding[binding].c_str(), location, unit,
+                static_cast<Int>(preferredTarget));
+        }
+
+        const MG_State::GLState::SamplerObject* samplerToUse =
+            samplerOverride ? samplerOverride.get() : texture->GetSamplerObject().get();
+        if (samplerToUse == nullptr) {
+            MGLOG_E(
+                "ResolveSamplerDescriptor: sampler binding %u ('%s') has no sampler object (textureId=%d location=%d unit=%d)",
+                binding, programObj.samplerNameByBinding[binding].c_str(), texture->GetExternalIndex(), location,
+                unit);
+            return false;
+        }
+        VkTextureManager::TextureResource* resource = m_textureManager->SyncTextureAndGetDescriptor(*texture);
+        if (resource == nullptr) {
+            MGLOG_E(
+                "ResolveSamplerDescriptor: sampler binding %u ('%s') failed to create/sync texture resource (textureId=%d target=%d location=%d unit=%d)",
+                binding, programObj.samplerNameByBinding[binding].c_str(), texture->GetExternalIndex(),
+                static_cast<Int>(texture->GetTarget()), location, unit);
+            return false;
+        }
+        if (!IsValidSampledImageLayout(resource->layout)) {
+            auto drawFbo = MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+            FramebufferAttachmentType attachmentType = FramebufferAttachmentType::None;
+            Int attachmentLevel = 0;
+            if (drawFbo &&
+                FindFramebufferAttachmentForTexture(*drawFbo, *texture, attachmentType, attachmentLevel)) {
+                MGLOG_W("ResolveSamplerDescriptor: framebuffer feedback loop detected: textureId=%d is bound "
+                        "for sampling at binding=%u, but is also attached to drawFbo=%u as %s (level=%d, "
+                        "trackedLayout=%d)",
+                        texture->GetExternalIndex(), binding, drawFbo->GetExternalIndex(),
+                        MG_Util::ConvertFramebufferAttachmentTypeToString(attachmentType).c_str(),
+                        attachmentLevel, static_cast<Int>(resource->layout));
+            }
+
+            const Bool readyForSampling = m_textureManager->TransitionTextureForSampling(commandBuffer, *texture);
+            if (!readyForSampling) {
+                MGLOG_E("ResolveSamplerDescriptor: failed to transition textureId=%d for sampler binding=%u",
+                        texture->GetExternalIndex(), binding);
+                return false;
+            }
+            resource = m_textureManager->SyncTextureAndGetDescriptor(*texture);
+            MOBILEGL_ASSERT(resource != nullptr,
+                            "ResolveSamplerDescriptor: failed to resync textureId=%d after sampling transition",
+                            texture->GetExternalIndex());
+            MOBILEGL_ASSERT(IsValidSampledImageLayout(resource->layout),
+                            "ResolveSamplerDescriptor: invalid sampled image layout=%d for textureId=%d, binding=%u",
+                            static_cast<Int>(resource->layout), texture->GetExternalIndex(), binding);
+        }
+        outImageInfo = {
+            .sampler = m_samplerManager->GetOrCreateSampler(*samplerToUse, *texture),
+            .imageView = resource->sampledView != VK_NULL_HANDLE ? resource->sampledView : resource->fullView,
+            .imageLayout = resource->layout,
+        };
+        if (ShouldDumpDescriptorStats()) {
+            std::fprintf(stderr,
+                         "MOBILEGL_DESCRIPTOR_STATS program=%u binding=%u name=%s location=%d unit=%d "
+                         "texture=%u target=%d sampler=%p imageView=%p layout=%d\n",
+                         program.GetExternalIndex(),
+                         binding,
+                         programObj.samplerNameByBinding[binding].c_str(),
+                         location,
+                         unit,
+                         texture->GetExternalIndex(),
+                         static_cast<Int>(texture->GetTarget()),
+                         reinterpret_cast<void*>(outImageInfo.sampler),
+                         reinterpret_cast<void*>(outImageInfo.imageView),
+                         static_cast<Int>(outImageInfo.imageLayout));
+        }
+        return outImageInfo.sampler != VK_NULL_HANDLE;
+    }
+
+    Bool UniformManager::ResolveSamplerDescriptorOverride(
+        const SamplerBindingOverride& samplerBindingOverride, VkDescriptorImageInfo& outImageInfo) const {
+        MOBILEGL_ASSERT(m_textureManager != nullptr, "ResolveSamplerDescriptorOverride: texture manager is null");
+        MOBILEGL_ASSERT(m_samplerManager != nullptr, "ResolveSamplerDescriptorOverride: sampler manager is null");
+        MOBILEGL_ASSERT(samplerBindingOverride.texture != nullptr,
+                        "ResolveSamplerDescriptorOverride: override texture is null for binding %u",
+                        samplerBindingOverride.binding);
+        MOBILEGL_ASSERT(samplerBindingOverride.sampler != nullptr,
+                        "ResolveSamplerDescriptorOverride: override sampler is null for binding %u",
+                        samplerBindingOverride.binding);
+
+        auto* resource = m_textureManager->SyncTextureAndGetDescriptor(*samplerBindingOverride.texture);
+        MOBILEGL_ASSERT(resource != nullptr,
+                        "ResolveSamplerDescriptorOverride: failed to sync override texture resource for binding %u textureId=%d",
+                        samplerBindingOverride.binding, samplerBindingOverride.texture->GetExternalIndex());
+        MOBILEGL_ASSERT(IsValidSampledImageLayout(resource->layout),
+                        "ResolveSamplerDescriptorOverride: invalid layout %d for binding %u textureId=%d",
+                        static_cast<Int>(resource->layout), samplerBindingOverride.binding,
+                        samplerBindingOverride.texture->GetExternalIndex());
+
+        outImageInfo = {
+            .sampler = m_samplerManager->GetOrCreateSampler(*samplerBindingOverride.sampler,
+                                                            *samplerBindingOverride.texture),
+            .imageView = samplerBindingOverride.imageView != VK_NULL_HANDLE ?
+                samplerBindingOverride.imageView :
+                (resource->sampledView != VK_NULL_HANDLE ? resource->sampledView : resource->fullView),
+            .imageLayout = resource->layout,
+        };
+        return outImageInfo.sampler != VK_NULL_HANDLE;
+    }
+
+    Bool UniformManager::ResolveSamplerTexture(const MG_State::GLState::ProgramObject& program,
+                                                         const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                                         SharedPtr<MG_State::GLState::ITextureObject>& outTexture) {
+        outTexture.reset();
+        MOBILEGL_ASSERT(MG_State::pGLContext != nullptr, "ResolveSamplerTexture: GL context is null");
+        MOBILEGL_ASSERT(binding < programObj.samplerUniformLocationByBinding.size(),
+                        "ResolveSamplerTexture: sampler location binding %u out of range", binding);
+        MOBILEGL_ASSERT(binding < programObj.samplerTextureTargetByBinding.size(),
+                        "ResolveSamplerTexture: sampler target binding %u out of range", binding);
+
+        const Int location = programObj.samplerUniformLocationByBinding[binding];
+        const Int unit = ResolveSamplerUnitIndex(program, location, binding);
+
+        auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
+        const TextureTarget preferredTarget = programObj.samplerTextureTargetByBinding[binding];
+        outTexture = textureUnit.GetBindingSlot(preferredTarget).GetBoundObject();
+
+        return true;
+    }
+
+    Bool UniformManager::ResolveTexelBufferDescriptor(const MG_State::GLState::ProgramObject& program,
+                                                      const ProgramFactory::VkProgramObject& programObj,
+                                                      Uint32 binding, Uint32 frameIndex,
+                                                      VkBufferView& outBufferView) {
+        outBufferView = VK_NULL_HANDLE;
+        MOBILEGL_ASSERT(m_bufferManager != nullptr, "ResolveTexelBufferDescriptor: buffer manager is null");
+        MOBILEGL_ASSERT(frameIndex < m_frames.size(), "ResolveTexelBufferDescriptor: frame index out of range");
+
+        SharedPtr<MG_State::GLState::ITextureObject> texture;
+        if (!ResolveSamplerTexture(program, programObj, binding, texture) || texture == nullptr) {
+            MGLOG_E("ResolveTexelBufferDescriptor: texture buffer binding %u ('%s') is unbound", binding,
+                    programObj.samplerNameByBinding[binding].c_str());
+            return false;
+        }
+
+        if (texture->GetStorageType() != TextureStorageType::Buffer ||
+            texture->GetTarget() != TextureTarget::TextureBuffer) {
+            MGLOG_E(
+                "ResolveTexelBufferDescriptor: binding %u ('%s') expected texture buffer, got textureId=%u target=%d storage=%d",
+                binding, programObj.samplerNameByBinding[binding].c_str(), texture->GetExternalIndex(),
+                static_cast<Int>(texture->GetTarget()), static_cast<Int>(texture->GetStorageType()));
+            return false;
+        }
+
+        auto* textureBuffer = static_cast<MG_State::GLState::TextureObjectBuffer*>(texture.get());
+        const auto bufferObject = textureBuffer->GetBufferBindingSlot().GetBoundObject();
+        if (bufferObject == nullptr) {
+            MGLOG_E("ResolveTexelBufferDescriptor: texture buffer binding %u ('%s') has no GL buffer bound",
+                    binding, programObj.samplerNameByBinding[binding].c_str());
+            return false;
+        }
+
+        BufferSlice slice{};
+        if (!m_bufferManager->SyncResidentBuffer(BufferKind::TextureBuffer, bufferObject, slice) || !slice.IsValid()) {
+            MGLOG_E("ResolveTexelBufferDescriptor: failed to sync GL buffer %u for texture buffer %u",
+                    bufferObject->GetExternalIndex(), texture->GetExternalIndex());
+            return false;
+        }
+
+        const auto internalFormat = textureBuffer->GetFormat();
+        const VkFormat vkFormat = MG_Util::ConvertTextureInternalFormatToVkEnum(internalFormat);
+        if (vkFormat == VK_FORMAT_UNDEFINED) {
+            MGLOG_E("ResolveTexelBufferDescriptor: unsupported texture buffer internal format %d",
+                    static_cast<Int>(internalFormat));
+            return false;
+        }
+
+        const VkDeviceSize texelSize =
+            static_cast<VkDeviceSize>(MG_Util::GetSizedInternalFormatSizeInBytes(internalFormat));
+        VkDeviceSize viewRange = slice.size;
+        if (texelSize > 0) {
+            viewRange = (viewRange / texelSize) * texelSize;
+        }
+        if (viewRange == 0) {
+            MGLOG_E("ResolveTexelBufferDescriptor: texture buffer %u has empty view range", texture->GetExternalIndex());
+            return false;
+        }
+
+        VkBufferViewCreateInfo viewInfo{};
+        viewInfo.sType = VK_STRUCTURE_TYPE_BUFFER_VIEW_CREATE_INFO;
+        viewInfo.buffer = slice.buffer;
+        viewInfo.format = vkFormat;
+        viewInfo.offset = slice.offset;
+        viewInfo.range = viewRange;
+
+        VkBufferView bufferView = VK_NULL_HANDLE;
+        const VkResult result = vkCreateBufferView(m_device, &viewInfo, nullptr, &bufferView);
+        if (result != VK_SUCCESS || bufferView == VK_NULL_HANDLE) {
+            MGLOG_E("ResolveTexelBufferDescriptor: vkCreateBufferView failed result=%d format=%d range=%zu",
+                    result, static_cast<Int>(vkFormat), static_cast<SizeT>(viewRange));
+            return false;
+        }
+
+        m_frames[frameIndex].texelBufferViews.push_back(bufferView);
+        outBufferView = bufferView;
+        return true;
+    }
+
+    Bool UniformManager::ResolveStorageBufferDescriptor(const MG_State::GLState::ProgramObject& program,
+                                                        const ProgramFactory::VkProgramObject& programObj,
+                                                        Uint32 binding,
+                                                        VkDescriptorBufferInfo& outBufferInfo) const {
+        outBufferInfo = {};
+        MOBILEGL_ASSERT(m_bufferManager != nullptr, "ResolveStorageBufferDescriptor: buffer manager is null");
+        MOBILEGL_ASSERT(MG_State::pGLContext != nullptr, "ResolveStorageBufferDescriptor: GL context is null");
+        MOBILEGL_ASSERT(binding < programObj.storageBlockIndexByBinding.size(),
+                        "ResolveStorageBufferDescriptor: binding %u out of range", binding);
+
+        const Int blockIndex = programObj.storageBlockIndexByBinding[binding];
+        MOBILEGL_ASSERT(blockIndex >= 0, "ResolveStorageBufferDescriptor: no SSBO block mapped to binding %u",
+                        binding);
+        const GLuint frontendBinding =
+            GetShaderStorageBlockBinding(program, static_cast<GLuint>(blockIndex));
+        const Uint32 bindingPointCount =
+            static_cast<Uint32>(MG_State::pGLContext->GetBufferBindingPointCount(BufferTarget::ShaderStorage));
+        MOBILEGL_ASSERT(frontendBinding < bindingPointCount,
+                        "ResolveStorageBufferDescriptor: frontend SSBO binding %u out of range for block '%s'",
+                        frontendBinding, programObj.storageBlockNameByBinding[binding].c_str());
+
+        auto& bindingPoint = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, frontendBinding);
+        const auto bufferObject = bindingPoint.GetBoundObject();
+        if (bufferObject == nullptr) {
+            MGLOG_E("ResolveStorageBufferDescriptor: no SSBO bound at frontend binding %u for block '%s'",
+                    frontendBinding, programObj.storageBlockNameByBinding[binding].c_str());
+            return false;
+        }
+
+        BufferSlice slice{};
+        if (!m_bufferManager->SyncResidentBuffer(BufferKind::ShaderStorage, bufferObject, slice) || !slice.IsValid()) {
+            MGLOG_E("ResolveStorageBufferDescriptor: failed to sync GL buffer %u for block '%s'",
+                    bufferObject->GetExternalIndex(), programObj.storageBlockNameByBinding[binding].c_str());
+            return false;
+        }
+
+        const auto range = bindingPoint.GetRange();
+        const VkDeviceSize bufferSize = static_cast<VkDeviceSize>(bufferObject->GetSize());
+        VkDeviceSize rangeStart = static_cast<VkDeviceSize>(std::min(range.start, bufferObject->GetSize()));
+        VkDeviceSize rangeEnd = static_cast<VkDeviceSize>(std::min(range.end, bufferObject->GetSize()));
+        if (rangeEnd <= rangeStart) {
+            rangeStart = 0;
+            rangeEnd = bufferSize;
+        }
+        if (rangeEnd <= rangeStart) {
+            MGLOG_E("ResolveStorageBufferDescriptor: empty SSBO range for block '%s'",
+                    programObj.storageBlockNameByBinding[binding].c_str());
+            return false;
+        }
+
+        outBufferInfo.buffer = slice.buffer;
+        outBufferInfo.offset = slice.offset + rangeStart;
+        outBufferInfo.range = rangeEnd - rangeStart;
+        return true;
+    }
+
+    Bool UniformManager::ResolveStorageImageDescriptor(VkCommandBuffer commandBuffer,
+                                                       const MG_State::GLState::ProgramObject& program,
+                                                       const ProgramFactory::VkProgramObject& programObj,
+                                                       Uint32 binding,
+                                                       VkDescriptorImageInfo& outImageInfo) const {
+        outImageInfo = {};
+        MOBILEGL_ASSERT(m_textureManager != nullptr, "ResolveStorageImageDescriptor: texture manager is null");
+        MOBILEGL_ASSERT(MG_State::pGLContext != nullptr, "ResolveStorageImageDescriptor: GL context is null");
+        MOBILEGL_ASSERT(binding < programObj.samplerUniformLocationByBinding.size(),
+                        "ResolveStorageImageDescriptor: binding %u out of range", binding);
+
+        const Int location = programObj.samplerUniformLocationByBinding[binding];
+        if (location < 0) {
+            MGLOG_E("ResolveStorageImageDescriptor: storage image binding %u has no uniform location", binding);
+            return false;
+        }
+        const Int imageUnit = program.GetUniformSamplerOrImageUnitIndex(static_cast<Uint>(location));
+        if (imageUnit < 0 || imageUnit >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) {
+            MGLOG_E("ResolveStorageImageDescriptor: image unit %d out of range for binding %u",
+                    imageUnit, binding);
+            return false;
+        }
+
+        auto& imageBinding = MG_State::pGLContext->GetImageTextureBinding(imageUnit);
+        if (imageBinding.Texture == nullptr) {
+            MGLOG_E("ResolveStorageImageDescriptor: image unit %d is unbound for binding %u", imageUnit, binding);
+            return false;
+        }
+
+        const Bool ready = m_textureManager->TransitionTextureForStorageImage(commandBuffer, *imageBinding.Texture);
+        if (!ready) {
+            MGLOG_E("ResolveStorageImageDescriptor: failed to transition textureId=%d for image unit %d",
+                    imageBinding.Texture->GetExternalIndex(), imageUnit);
+            return false;
+        }
+        auto* resource = m_textureManager->SyncTextureAndGetDescriptor(*imageBinding.Texture);
+        if (resource == nullptr) {
+            return false;
+        }
+
+        const Uint32 mipLevel = static_cast<Uint32>(std::max<GLint>(0, imageBinding.Level));
+        VkImageView view = m_textureManager->GetOrCreateViewAtMipLevel(*imageBinding.Texture, mipLevel);
+        if (view == VK_NULL_HANDLE) {
+            view = resource->fullView;
+        }
+        outImageInfo.sampler = VK_NULL_HANDLE;
+        outImageInfo.imageView = view;
+        outImageInfo.imageLayout = VK_IMAGE_LAYOUT_GENERAL;
+        return outImageInfo.imageView != VK_NULL_HANDLE;
+    }
+
+    SharedPtr<MG_State::GLState::ITextureObject> UniformManager::GetFallbackTexture(TextureTarget target) const {
+        MOBILEGL_ASSERT(target == TextureTarget::Texture2D || target == TextureTarget::TextureRectangle,
+                        "UniformManager::GetFallbackTexture: unsupported fallback target=%d",
+                        static_cast<Int>(target));
+
+        if (m_fallbackTexture2D == nullptr) {
+            auto fallbackTexture = MakeShared<MG_State::GLState::TextureObject2D>(kFallbackTexture2DExternalIndex);
+            fallbackTexture->SetInternalFormat(TextureInternalFormat::RGBA8);
+            fallbackTexture->AllocateStorage(TextureUploadTarget::Texture2D, 0,
+                                             {.texelSize = {1, 1, 1}, .byteSize = 4});
+            fallbackTexture->MarkStorageDirty(TextureUploadTarget::Texture2D, 0, true);
+            m_fallbackTexture2D = fallbackTexture;
+        }
+
+        return m_fallbackTexture2D;
+    }
+
+    Bool UniformManager::CollectSampledTextures(const MG_State::GLState::ProgramObject& program,
+                                                          const ProgramFactory::VkProgramObject& programObj,
+                                                          Vector<MG_State::GLState::ITextureObject*>& outTextures) {
+        outTextures.clear();
+
+        const Uint32 bindingCount =
+            std::min<Uint32>(m_maxBindings, static_cast<Uint32>(programObj.bindingKinds.size()));
+        for (Uint32 binding = 0; binding < bindingCount; ++binding) {
+            if (programObj.bindingKinds[binding] != ProgramFactory::DescriptorBindingKind::CombinedImageSampler) {
+                continue;
+            }
+
+            SharedPtr<MG_State::GLState::ITextureObject> texture;
+            if (!ResolveSamplerTexture(program, programObj, binding, texture) || !texture) {
+                continue;
+            }
+
+            auto found = std::find(outTextures.begin(), outTextures.end(), texture.get());
+            if (found == outTextures.end()) {
+                outTextures.push_back(texture.get());
+            }
+        }
+        return true;
+    }
+
+    Bool UniformManager::ResolveUniformBufferPayload(const MG_State::GLState::ProgramObject& program,
+                                                     const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                                     const void*& outData, VkDeviceSize& outSize) const {
+        outData = nullptr;
+        outSize = 0;
+
+        MOBILEGL_ASSERT(MG_State::pGLContext != nullptr, "ResolveUniformBufferPayload: GL context is null");
+        MOBILEGL_ASSERT(binding < programObj.bindingKinds.size(),
+                        "ResolveUniformBufferPayload: binding %u out of range", binding);
+        MOBILEGL_ASSERT(programObj.bindingKinds[binding] == ProgramFactory::DescriptorBindingKind::UniformBufferDynamic,
+                        "ResolveUniformBufferPayload: binding %u is not a uniform buffer descriptor", binding);
+
+        if (programObj.globalUboBinding == static_cast<Int>(binding)) {
+            outData = program.GetUBOData();
+            outSize = static_cast<VkDeviceSize>(program.GetUBOSize());
+            static const Array<Uint8, 16> emptyGlobalUbo{};
+            if (outData == nullptr || outSize == 0) {
+                outData = emptyGlobalUbo.data();
+                outSize = static_cast<VkDeviceSize>(emptyGlobalUbo.size());
+            }
+            return outData != nullptr && outSize > 0;
+        }
+
+        MOBILEGL_ASSERT(binding < programObj.uniformBlockIndexByBinding.size(),
+                        "ResolveUniformBufferPayload: UBO mapping binding %u out of range", binding);
+        const Int blockIndex = programObj.uniformBlockIndexByBinding[binding];
+        MOBILEGL_ASSERT(blockIndex >= 0,
+                        "ResolveUniformBufferPayload: no uniform block mapped to descriptor binding %u", binding);
+
+        const Uint32 activeUniformBlockCount = static_cast<Uint32>(program.GetActiveUniformBlocksCount());
+        MOBILEGL_ASSERT(static_cast<Uint32>(blockIndex) < activeUniformBlockCount,
+                        "ResolveUniformBufferPayload: uniform block index %d out of range (count=%u)", blockIndex,
+                        activeUniformBlockCount);
+
+        const Uint32 frontendBinding = program.GetUniformBlockBinding(static_cast<Uint32>(blockIndex));
+        const Uint32 uniformBindingPointCount =
+            static_cast<Uint32>(MG_State::pGLContext->GetBufferBindingPointCount(BufferTarget::Uniform));
+        MOBILEGL_ASSERT(frontendBinding < uniformBindingPointCount,
+                        "ResolveUniformBufferPayload: frontend UBO binding %u out of range for block '%s'",
+                        frontendBinding, program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        auto& bindingPoint = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::Uniform, frontendBinding);
+        const auto bufferObject = bindingPoint.GetBoundObject();
+        MOBILEGL_ASSERT(bufferObject != nullptr,
+                        "ResolveUniformBufferPayload: no UBO bound at frontend binding %u for block '%s'",
+                        frontendBinding, program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+        bufferObject->MarkPersistentMappedRangeDirty();
+
+        const auto bufferData = bufferObject->GetDataReadOnly();
+        MOBILEGL_ASSERT(bufferData != nullptr && !bufferData->empty(),
+                        "ResolveUniformBufferPayload: bound UBO data is empty for block '%s'",
+                        program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        const auto range = bindingPoint.GetRange();
+        const VkDeviceSize bufferSize = static_cast<VkDeviceSize>(bufferObject->GetSize());
+        const VkDeviceSize rangeStart = static_cast<VkDeviceSize>(range.start);
+        MOBILEGL_ASSERT(rangeStart < bufferSize,
+                        "ResolveUniformBufferPayload: UBO range start %zu exceeds buffer size %zu for block '%s'",
+                        static_cast<SizeT>(rangeStart), static_cast<SizeT>(bufferSize),
+                        program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        VkDeviceSize rangeEnd = static_cast<VkDeviceSize>(range.end);
+        if (rangeEnd > bufferSize) {
+            rangeEnd = bufferSize;
+        }
+        MOBILEGL_ASSERT(rangeEnd > rangeStart,
+                        "ResolveUniformBufferPayload: invalid UBO range [%zu, %zu) for block '%s'",
+                        static_cast<SizeT>(rangeStart), static_cast<SizeT>(rangeEnd),
+                        program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        const VkDeviceSize blockSize = static_cast<VkDeviceSize>(program.GetUBOSizeAt(static_cast<Uint32>(blockIndex)));
+        MOBILEGL_ASSERT(blockSize > 0,
+                        "ResolveUniformBufferPayload: reflected UBO size is zero for block '%s'",
+                        program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        const VkDeviceSize available = rangeEnd - rangeStart;
+        MOBILEGL_ASSERT(available >= blockSize,
+                        "ResolveUniformBufferPayload: bound range %zu is smaller than UBO size %zu for block '%s'",
+                        static_cast<SizeT>(available), static_cast<SizeT>(blockSize),
+                        program.GetUniformBlockName(static_cast<Uint32>(blockIndex)).c_str());
+
+        outData = bufferData->data() + static_cast<SizeT>(rangeStart);
+        outSize = blockSize;
+        return true;
+    }
+
+    Bool UniformManager::CreateDescriptorPool(Uint32 maxSets, VkDescriptorPool& outPool) const {
+        outPool = VK_NULL_HANDLE;
+        if (m_device == VK_NULL_HANDLE || maxSets == 0 || m_maxBindings == 0) {
+            return false;
+        }
+
+        const Uint64 descriptorCount64 = static_cast<Uint64>(maxSets) * static_cast<Uint64>(m_maxBindings);
+        if (descriptorCount64 > static_cast<Uint64>(std::numeric_limits<Uint32>::max())) {
+            MGLOG_E("UniformDescriptorBinder::CreateDescriptorPool failed: descriptorCount overflow");
+            return false;
+        }
+
+        const Uint32 descriptorCount = static_cast<Uint32>(descriptorCount64);
+        VkDescriptorPoolSize poolSizes[5]{};
+        poolSizes[0].type = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
+        poolSizes[0].descriptorCount = descriptorCount;
+        poolSizes[1].type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+        poolSizes[1].descriptorCount = descriptorCount;
+        poolSizes[2].type = VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER;
+        poolSizes[2].descriptorCount = descriptorCount;
+        poolSizes[3].type = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
+        poolSizes[3].descriptorCount = descriptorCount;
+        poolSizes[4].type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE;
+        poolSizes[4].descriptorCount = descriptorCount;
+
+        VkDescriptorPoolCreateInfo poolInfo{};
+        poolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
+        poolInfo.maxSets = maxSets;
+        poolInfo.poolSizeCount = static_cast<Uint32>(std::size(poolSizes));
+        poolInfo.pPoolSizes = poolSizes;
+
+        const VkResult result = vkCreateDescriptorPool(m_device, &poolInfo, nullptr, &outPool);
+        if (result != VK_SUCCESS) {
+            MGLOG_E("UniformDescriptorBinder::CreateDescriptorPool failed: vkCreateDescriptorPool returned %d",
+                    result);
+            return false;
+        }
+        return true;
+    }
+
+    Bool UniformManager::GrowFrameDescriptorPool(FrameResources& frame, Uint32 frameIndex) {
+        if (frame.descriptorPools.empty()) {
+            return false;
+        }
+
+        const auto& currentBucket = frame.descriptorPools[frame.activeDescriptorPoolIndex];
+        const Uint32 currentMaxSets = std::max<Uint32>(1, currentBucket.maxSets);
+        const Uint32 grownMaxSets = currentMaxSets <= (std::numeric_limits<Uint32>::max() / 2) ? (currentMaxSets * 2)
+                                                                                                 : currentMaxSets;
+
+        VkDescriptorPool grownPool = VK_NULL_HANDLE;
+        if (!CreateDescriptorPool(grownMaxSets, grownPool)) {
+            MGLOG_E("UniformDescriptorBinder::GrowFrameDescriptorPool failed: cannot create grown pool (%u -> %u sets)",
+                    currentMaxSets, grownMaxSets);
+            return false;
+        }
+
+        frame.descriptorPools.push_back({grownPool, grownMaxSets, 0});
+        frame.activeDescriptorPoolIndex = static_cast<Uint32>(frame.descriptorPools.size() - 1);
+        MGLOG_D(
+            "UniformDescriptorBinder: frame %u descriptor pool exhausted, grew pool (%u -> %u sets), poolCount=%zu",
+            frameIndex, currentMaxSets, grownMaxSets, frame.descriptorPools.size());
+        return true;
+    }
+
+    VkResult UniformManager::AllocateDescriptorSetsFromActivePool(Uint32 frameIndex, const ProgramFactory::VkProgramObject& programObj, VkDescriptorSet& outDescriptorSet) {
+        auto& frame = m_frames[frameIndex];
+        if (frame.activeDescriptorPoolIndex >= frame.descriptorPools.size()) {
+            frame.activeDescriptorPoolIndex = 0;
+        }
+        if (frame.descriptorPools[frame.activeDescriptorPoolIndex].allocatedSets >=
+            frame.descriptorPools[frame.activeDescriptorPoolIndex].maxSets) {
+            const auto availableBucket = std::find_if(
+                frame.descriptorPools.begin(), frame.descriptorPools.end(),
+                [](const DescriptorPoolBucket& candidate) { return candidate.allocatedSets < candidate.maxSets; });
+            if (availableBucket == frame.descriptorPools.end()) {
+                outDescriptorSet = VK_NULL_HANDLE;
+                return VK_ERROR_OUT_OF_POOL_MEMORY;
+            }
+            frame.activeDescriptorPoolIndex =
+                static_cast<Uint32>(std::distance(frame.descriptorPools.begin(), availableBucket));
+        }
+        auto& bucket = frame.descriptorPools[frame.activeDescriptorPoolIndex];
+        if (bucket.allocatedSets >= bucket.maxSets) {
+            outDescriptorSet = VK_NULL_HANDLE;
+            return VK_ERROR_OUT_OF_POOL_MEMORY;
+        }
+        VkDescriptorSetAllocateInfo allocInfo{};
+        allocInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
+        allocInfo.descriptorSetCount = 1;
+        allocInfo.pSetLayouts = &programObj.descriptorSetLayout;
+
+        allocInfo.descriptorPool = bucket.handle;
+        VkResult result = vkAllocateDescriptorSets(m_device, &allocInfo, &outDescriptorSet);
+        if (result == VK_SUCCESS) {
+            ++bucket.allocatedSets;
+        }
+        return result;
+    }
+
+    VkResult UniformManager::AcquireDescriptorSet(Uint32 frameIndex,
+                                                  const ProgramFactory::VkProgramObject& programObj,
+                                                  VkDescriptorSet& outDescriptorSet) {
+        auto& frame = m_frames[frameIndex];
+        auto& cache = frame.descriptorSetCacheByLayout[programObj.descriptorSetLayout];
+        if (cache.cursor < cache.sets.size()) {
+            outDescriptorSet = cache.sets[cache.cursor++];
+        } else {
+            VkResult allocResult = AllocateDescriptorSetsFromActivePool(frameIndex, programObj, outDescriptorSet);
+            if (allocResult == VK_ERROR_OUT_OF_POOL_MEMORY || allocResult == VK_ERROR_FRAGMENTED_POOL) {
+                if (!GrowFrameDescriptorPool(frame, frameIndex)) {
+                    MGLOG_E("UniformDescriptorBinder::AcquireDescriptorSet failed: descriptor pool growth failed");
+                    return allocResult;
+                }
+                allocResult = AllocateDescriptorSetsFromActivePool(frameIndex, programObj, outDescriptorSet);
+            }
+            if (allocResult != VK_SUCCESS || outDescriptorSet == VK_NULL_HANDLE) {
+                return allocResult;
+            }
+
+            cache.sets.push_back(outDescriptorSet);
+            ++cache.cursor;
+            MGLOG_D("UniformDescriptorBinder: cached descriptor set count for frame=%u grew to %zu", frameIndex,
+                    cache.sets.size());
+        }
+
+        ++frame.allocatedSetsThisFrame;
+        frame.peakAllocatedSetsThisFrame =
+            std::max(frame.peakAllocatedSetsThisFrame, frame.allocatedSetsThisFrame);
+        return VK_SUCCESS;
+    }
+
+    Bool UniformManager::BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
+                                                             const MG_State::GLState::ProgramObject& program,
+                                                             const ProgramFactory::VkProgramObject& programObj,
+                                                             Uint32 frameIndex,
+                                                             VkPipelineBindPoint bindPoint,
+                                                             const SamplerBindingOverride* samplerBindingOverride) {
+        auto& frame = m_frames[frameIndex];
+        if (frame.descriptorPools.empty()) {
+            MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: frame descriptor pools are invalid");
+            return false;
+        }
+        if (frame.activeDescriptorPoolIndex >= frame.descriptorPools.size()) {
+            frame.activeDescriptorPoolIndex = 0;
+        }
+
+        VkDescriptorSet descriptorSet = VK_NULL_HANDLE;
+        VkResult allocResult = AcquireDescriptorSet(frameIndex, programObj, descriptorSet);
+        if (allocResult != VK_SUCCESS || descriptorSet == VK_NULL_HANDLE) {
+            MGLOG_E("UniformDescriptorBinder::BindProgramUniformBuffers failed: descriptor set acquire returned %d",
+                    allocResult);
+            return false;
+        }
+
+        MOBILEGL_ASSERT(m_textureManager != nullptr, "BindProgramUniformBuffers: texture manager is null");
+        MOBILEGL_ASSERT(m_samplerManager != nullptr, "BindProgramUniformBuffers: sampler manager is null");
+        MOBILEGL_ASSERT(m_bufferManager != nullptr, "BindProgramUniformBuffers: buffer manager is null");
+
+        Vector<VkWriteDescriptorSet> writes;
+        writes.reserve(m_maxBindings);
+        Vector<VkDescriptorBufferInfo> bufferInfos;
+        Vector<VkDescriptorImageInfo> imageInfos;
+        Vector<VkBufferView> texelBufferViews;
+        Vector<Uint32> dynamicOffsets;
+        bufferInfos.reserve(m_maxBindings);
+        imageInfos.reserve(m_maxBindings);
+        texelBufferViews.reserve(m_maxBindings);
+        dynamicOffsets.reserve(programObj.dynamicBindings.size());
+
+        const Uint32 bindingCount =
+            std::min<Uint32>(m_maxBindings, static_cast<Uint32>(programObj.bindingKinds.size()));
+        for (Uint32 binding = 0; binding < bindingCount; ++binding) {
+            const auto kind = programObj.bindingKinds[binding];
+            if (kind == ProgramFactory::DescriptorBindingKind::None) {
+                continue;
+            }
+
+            VkWriteDescriptorSet write{};
+            write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
+            write.dstSet = descriptorSet;
+            write.dstBinding = binding;
+            write.dstArrayElement = 0;
+            write.descriptorCount = 1;
+
+            if (kind == ProgramFactory::DescriptorBindingKind::UniformBufferDynamic) {
+                const void* payload = nullptr;
+                VkDeviceSize payloadSize = 0;
+                const Bool hasPayload = ResolveUniformBufferPayload(program, programObj, binding, payload, payloadSize);
+                MOBILEGL_ASSERT(hasPayload && payload != nullptr && payloadSize > 0,
+                                "UniformDescriptorBinder::BindProgramUniformBuffers failed: missing UBO payload on binding %u",
+                                binding);
+
+                BufferSlice slice{};
+                if (!m_bufferManager->UploadTransient(BufferKind::Uniform, frameIndex, payload, payloadSize,
+                                                     m_minDynamicOffsetAlignment, slice)) {
+                    MOBILEGL_ASSERT(false, "UniformDescriptorBinder::BindProgramUniformBuffers failed: UBO upload failed on binding %u",
+                            binding);
+                    return false;
+                }
+
+                VkDescriptorBufferInfo bufferInfo{};
+                bufferInfo.buffer = slice.buffer;
+                bufferInfo.offset = 0;
+                bufferInfo.range = payloadSize;
+                bufferInfos.push_back(bufferInfo);
+
+                write.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
+                write.pBufferInfo = &bufferInfos.back();
+                writes.push_back(write);
+                dynamicOffsets.push_back(static_cast<Uint32>(slice.offset));
+            } else if (kind == ProgramFactory::DescriptorBindingKind::UniformTexelBuffer) {
+                VkBufferView bufferView = VK_NULL_HANDLE;
+                if (!ResolveTexelBufferDescriptor(program, programObj, binding, frameIndex, bufferView) ||
+                    bufferView == VK_NULL_HANDLE) {
+                    MGLOG_E(
+                        "UniformDescriptorBinder::BindProgramUniformBuffers failed: texture buffer binding %u has no valid descriptor",
+                        binding);
+                    return false;
+                }
+
+                texelBufferViews.push_back(bufferView);
+                write.descriptorType = VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER;
+                write.pTexelBufferView = &texelBufferViews.back();
+                writes.push_back(write);
+            } else if (kind == ProgramFactory::DescriptorBindingKind::StorageBuffer) {
+                VkDescriptorBufferInfo bufferInfo{};
+                if (!ResolveStorageBufferDescriptor(program, programObj, binding, bufferInfo)) {
+                    MGLOG_E(
+                        "UniformDescriptorBinder::BindProgramUniformBuffers failed: storage buffer binding %u has no valid descriptor",
+                        binding);
+                    return false;
+                }
+
+                bufferInfos.push_back(bufferInfo);
+                write.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
+                write.pBufferInfo = &bufferInfos.back();
+                writes.push_back(write);
+            } else if (kind == ProgramFactory::DescriptorBindingKind::StorageImage) {
+                VkDescriptorImageInfo imageInfo{};
+                if (!ResolveStorageImageDescriptor(commandBuffer, program, programObj, binding, imageInfo)) {
+                    MGLOG_E(
+                        "UniformDescriptorBinder::BindProgramUniformBuffers failed: storage image binding %u has no valid descriptor",
+                        binding);
+                    return false;
+                }
+                imageInfos.push_back(imageInfo);
+                write.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE;
+                write.pImageInfo = &imageInfos.back();
+                writes.push_back(write);
+            } else {
+                VkDescriptorImageInfo imageInfo{};
+                Bool hasImage = false;
+                if (samplerBindingOverride != nullptr &&
+                    samplerBindingOverride->binding == binding &&
+                    samplerBindingOverride->texture != nullptr &&
+                    samplerBindingOverride->sampler != nullptr) {
+                    hasImage = ResolveSamplerDescriptorOverride(*samplerBindingOverride, imageInfo);
+                } else {
+                    hasImage = ResolveSamplerDescriptor(commandBuffer, program, programObj, binding, imageInfo);
+                }
+                if (!hasImage) {
+                    MGLOG_E(
+                        "UniformDescriptorBinder::BindProgramUniformBuffers failed: sampler binding %u has no valid texture descriptor",
+                        binding);
+                    return false;
+                }
+                if (imageInfo.sampler == VK_NULL_HANDLE || imageInfo.imageView == VK_NULL_HANDLE) {
+                    MGLOG_E(
+                        "UniformDescriptorBinder::BindProgramUniformBuffers failed: sampler binding %u has null sampler or imageView",
+                        binding);
+                    return false;
+                }
+                imageInfos.push_back(imageInfo);
+                write.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
+                write.pImageInfo = &imageInfos.back();
+                writes.push_back(write);
+            }
+        }
+
+        if (!writes.empty()) {
+            vkUpdateDescriptorSets(m_device, static_cast<Uint32>(writes.size()), writes.data(), 0, nullptr);
+        }
+
+        vkCmdBindDescriptorSets(commandBuffer, bindPoint, programObj.pipelineLayout, 0, 1,
+                                &descriptorSet, static_cast<Uint32>(dynamicOffsets.size()), dynamicOffsets.data());
+        return true;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.h

@@ -0,0 +1,118 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/UniformDescriptorBinder.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+#include "ProgramFactory.h"
+#include "VkBufferManager.h"
+#include "VkSamplerManager.h"
+#include "VkTextureManager.h"
+#include "../VkIncludes.h"
+#include <Includes.h>
+
+namespace MobileGL::MG_State::GLState {
+    class ITextureObject;
+    class ProgramObject;
+    class SamplerObject;
+}
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    class UniformManager {
+    public:
+        struct SamplerBindingOverride {
+            Uint32 binding = 0;
+            MG_State::GLState::ITextureObject* texture = nullptr;
+            const MG_State::GLState::SamplerObject* sampler = nullptr;
+            VkImageView imageView = VK_NULL_HANDLE;
+        };
+
+        Bool Initialize(VkDevice device, VkBufferManager* bufferManager,
+                        ProgramFactory* programFactory,
+                        VkDeviceSize minUniformBufferOffsetAlignment, Uint32 frameCount,
+                        Uint32 maxBindings = 16, Uint32 setsPerFrame = 64,
+                        VkTextureManager* textureManager = nullptr, VkSamplerManager* samplerManager = nullptr);
+        void Shutdown();
+
+        void BeginFrame(Uint32 frameIndex);
+        Bool CollectSampledTextures(const MG_State::GLState::ProgramObject& program,
+                                    const ProgramFactory::VkProgramObject& programObj,
+                                    Vector<MG_State::GLState::ITextureObject*>& outTextures);
+        Bool BindProgramUniformBuffers(VkCommandBuffer commandBuffer,
+                                       const MG_State::GLState::ProgramObject& program,
+                                       const ProgramFactory::VkProgramObject& programObj,
+                                       Uint32 frameIndex,
+                                       VkPipelineBindPoint bindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
+                                       const SamplerBindingOverride* samplerBindingOverride = nullptr);
+
+    private:
+        struct DescriptorPoolBucket {
+            VkDescriptorPool handle = VK_NULL_HANDLE;
+            Uint32 maxSets = 0;
+            Uint32 allocatedSets = 0;
+        };
+
+        struct DescriptorSetCacheEntry {
+            Vector<VkDescriptorSet> sets;
+            Uint32 cursor = 0;
+        };
+
+        struct FrameResources {
+            Vector<DescriptorPoolBucket> descriptorPools;
+            UnorderedMap<VkDescriptorSetLayout, DescriptorSetCacheEntry> descriptorSetCacheByLayout;
+            Vector<VkBufferView> texelBufferViews;
+            Uint32 activeDescriptorPoolIndex = 0;
+            Uint32 allocatedSetsThisFrame = 0;
+            Uint32 peakAllocatedSetsThisFrame = 0;
+        };
+
+        static Bool ResolveSamplerTexture(const MG_State::GLState::ProgramObject& program,
+                                   const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                   SharedPtr<MG_State::GLState::ITextureObject>& outTexture);
+        SharedPtr<MG_State::GLState::ITextureObject> GetFallbackTexture(TextureTarget target) const;
+        Bool ResolveSamplerDescriptor(VkCommandBuffer commandBuffer, const MG_State::GLState::ProgramObject& program,
+                                      const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                      VkDescriptorImageInfo& outImageInfo) const;
+        Bool ResolveSamplerDescriptorOverride(const SamplerBindingOverride& samplerBindingOverride,
+                                              VkDescriptorImageInfo& outImageInfo) const;
+        Bool ResolveTexelBufferDescriptor(const MG_State::GLState::ProgramObject& program,
+                                          const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                          Uint32 frameIndex, VkBufferView& outBufferView);
+        Bool ResolveStorageBufferDescriptor(const MG_State::GLState::ProgramObject& program,
+                                            const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                            VkDescriptorBufferInfo& outBufferInfo) const;
+        Bool ResolveStorageImageDescriptor(VkCommandBuffer commandBuffer,
+                                           const MG_State::GLState::ProgramObject& program,
+                                           const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                           VkDescriptorImageInfo& outImageInfo) const;
+        Bool ResolveUniformBufferPayload(const MG_State::GLState::ProgramObject& program,
+                                         const ProgramFactory::VkProgramObject& programObj, Uint32 binding,
+                                         const void*& outData, VkDeviceSize& outSize) const;
+        Bool CreateDescriptorPool(Uint32 maxSets, VkDescriptorPool& outPool) const;
+        Bool GrowFrameDescriptorPool(FrameResources& frame, Uint32 frameIndex);
+        VkResult AllocateDescriptorSetsFromActivePool(
+            Uint32 frameIndex, const ProgramFactory::VkProgramObject& programObj, VkDescriptorSet& outDescriptorSet);
+        VkResult AcquireDescriptorSet(Uint32 frameIndex,
+                                      const ProgramFactory::VkProgramObject& programObj,
+                                      VkDescriptorSet& outDescriptorSet);
+
+        VkDevice m_device = VK_NULL_HANDLE;
+        VkBufferManager* m_bufferManager = nullptr;
+        ProgramFactory* m_programFactory = nullptr;
+        Vector<FrameResources> m_frames;
+
+        VkDeviceSize m_minDynamicOffsetAlignment = 1;
+        Uint32 m_frameCount = 0;
+        Uint32 m_maxBindings = 0;
+        Uint32 m_setsPerFrame = 0;
+        Uint32 m_peakDescriptorSetsObserved = 0;
+        VkTextureManager* m_textureManager = nullptr;
+        VkSamplerManager* m_samplerManager = nullptr;
+        mutable SharedPtr<MG_State::GLState::ITextureObject> m_fallbackTexture2D;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkan
+

MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateFactory.cpp

@@ -41,20 +41,25 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     const VertexInputStateFactory::BackendVertexInputState& VertexInputStateFactory::GetOrCreateVertexInputState(
         const MG_State::GLState::VertexArrayObject& vao) {
         const HashType hash = ComputeHash(vao);
+        return GetOrCreateVertexInputState(vao, hash);
+    }
+
+    const VertexInputStateFactory::BackendVertexInputState& VertexInputStateFactory::GetOrCreateVertexInputState(
+        const MG_State::GLState::VertexArrayObject& vao, HashType hash) {
         auto it = m_cache.find(hash);
         if (it != m_cache.end()) {
             return it->second;
         }
 
         VertexInputStateBuilder builder;
-        UnorderedMap<SizeT, Uint32> bindingByBufferKey;
-        UnorderedMap<SizeT, Uint32> strideByBufferKey;
-        UnorderedMap<SizeT, VkVertexInputRate> inputRateByBufferKey;
         Vector<SizeT> bindingBufferKeys;
+        Vector<SizeT> bindingBaseOffsets;
+        Vector<Uint32> bindingAttributeLocations;
+        Vector<Bool> bindingUsesClientMemory;
 
         for (Uint32 location = 0; location < MG_State::GLState::VertexArrayObject::MAX_VERTEX_ATTRIBS; ++location) {
             const auto& attr = vao.GetAttribute(location);
-            if (!attr.Enabled || !attr.Buffer) {
+            if (!attr.Enabled) {
                 continue;
             }
 
@@ -79,29 +84,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 (attr.Divisor == 0) ? VK_VERTEX_INPUT_RATE_VERTEX : VK_VERTEX_INPUT_RATE_INSTANCE;
 
             const SizeT bufferKey = reinterpret_cast<SizeT>(attr.Buffer.get());
-            Uint32 binding = 0;
+            const Uint32 binding = static_cast<Uint32>(bindingBufferKeys.size());
-            auto itBinding = bindingByBufferKey.find(bufferKey);
+            bindingBufferKeys.push_back(bufferKey);
-            if (itBinding == bindingByBufferKey.end()) {
+            bindingBaseOffsets.push_back(attr.Buffer ? attr.Offset : 0);
-                binding = static_cast<Uint32>(bindingByBufferKey.size());
+            bindingAttributeLocations.push_back(location);
-                bindingByBufferKey.emplace(bufferKey, binding);
+            bindingUsesClientMemory.push_back(attr.Buffer == nullptr);
-                strideByBufferKey.emplace(bufferKey, stride);
+            builder.AddBinding(binding, stride, inputRate);
-                inputRateByBufferKey.emplace(bufferKey, inputRate);
+            builder.AddAttribute(location, binding, vkFormat, 0);
-                bindingBufferKeys.push_back(bufferKey);
-                builder.AddBinding(binding, stride, inputRate);
-            } else {
-                binding = itBinding->second;
-                if (strideByBufferKey[bufferKey] != stride) {
-                    MGLOG_D("Skipping vertex attribute at location %u: stride mismatch (%u vs %u) on same buffer",
-                            location, stride, strideByBufferKey[bufferKey]);
-                    continue;
-                }
-                if (inputRateByBufferKey[bufferKey] != inputRate) {
-                    MGLOG_D("Skipping vertex attribute at location %u: input-rate mismatch on same buffer", location);
-                    continue;
-                }
-            }
-
-            builder.AddAttribute(location, binding, vkFormat, static_cast<Uint32>(attr.Offset));
         }
 
         const auto& state = builder.Build();
@@ -111,6 +100,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         entry.bindings = builder.GetBindings();
         entry.attributes = builder.GetAttributes();
         entry.bindingBufferKeys = std::move(bindingBufferKeys);
+        entry.bindingBaseOffsets = std::move(bindingBaseOffsets);
+        entry.bindingAttributeLocations = std::move(bindingAttributeLocations);
+        entry.bindingUsesClientMemory = std::move(bindingUsesClientMemory);
         entry.state = state;
         entry.state.pVertexBindingDescriptions = entry.bindings.empty() ? nullptr : entry.bindings.data();
         entry.state.pVertexAttributeDescriptions = entry.attributes.empty() ? nullptr : entry.attributes.data();
@@ -148,8 +140,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         case DataType::Int16:
             switch (size) {
             case 1:
-                return isInteger ? VK_FORMAT_R16_SINT
+                return isInteger ? VK_FORMAT_R16_SINT : (normalized ? VK_FORMAT_R16_SNORM : VK_FORMAT_R16_SSCALED);
-                                 : (normalized ? VK_FORMAT_R16_SNORM : VK_FORMAT_R16_SSCALED);
             case 2:
                 return isInteger ? VK_FORMAT_R16G16_SINT
                                  : (normalized ? VK_FORMAT_R16G16_SNORM : VK_FORMAT_R16G16_SSCALED);
@@ -164,8 +155,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         case DataType::Uint16:
             switch (size) {
             case 1:
-                return isInteger ? VK_FORMAT_R16_UINT
+                return isInteger ? VK_FORMAT_R16_UINT : (normalized ? VK_FORMAT_R16_UNORM : VK_FORMAT_R16_USCALED);
-                                 : (normalized ? VK_FORMAT_R16_UNORM : VK_FORMAT_R16_USCALED);
             case 2:
                 return isInteger ? VK_FORMAT_R16G16_UINT
                                  : (normalized ? VK_FORMAT_R16G16_UNORM : VK_FORMAT_R16G16_USCALED);
@@ -180,8 +170,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         case DataType::Int8:
             switch (size) {
             case 1:
-                return isInteger ? VK_FORMAT_R8_SINT
+                return isInteger ? VK_FORMAT_R8_SINT : (normalized ? VK_FORMAT_R8_SNORM : VK_FORMAT_R8_SSCALED);
-                                 : (normalized ? VK_FORMAT_R8_SNORM : VK_FORMAT_R8_SSCALED);
             case 2:
                 return isInteger ? VK_FORMAT_R8G8_SINT
                                  : (normalized ? VK_FORMAT_R8G8_SNORM : VK_FORMAT_R8G8_SSCALED);
@@ -196,8 +185,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         case DataType::Uint8:
             switch (size) {
             case 1:
-                return isInteger ? VK_FORMAT_R8_UINT
+                return isInteger ? VK_FORMAT_R8_UINT : (normalized ? VK_FORMAT_R8_UNORM : VK_FORMAT_R8_USCALED);
-                                 : (normalized ? VK_FORMAT_R8_UNORM : VK_FORMAT_R8_USCALED);
             case 2:
                 return isInteger ? VK_FORMAT_R8G8_UINT
                                  : (normalized ? VK_FORMAT_R8G8_UNORM : VK_FORMAT_R8G8_USCALED);

MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateFactory.h

@@ -24,6 +24,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             Vector<VkVertexInputBindingDescription> bindings;
             Vector<VkVertexInputAttributeDescription> attributes;
             Vector<SizeT> bindingBufferKeys;
+            Vector<SizeT> bindingBaseOffsets;
+            Vector<Uint32> bindingAttributeLocations;
+            Vector<Bool> bindingUsesClientMemory;
             VkPipelineVertexInputStateCreateInfo state{
                 VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO
             };
@@ -35,11 +38,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         VertexInputStateFactory(const VertexInputStateFactory&) = delete;
 
         HashType ComputeHash(const MG_State::GLState::VertexArrayObject& vao) const;
+        const BackendVertexInputState& GetOrCreateVertexInputState(
+            const MG_State::GLState::VertexArrayObject& vao, HashType hash);
         const BackendVertexInputState& GetOrCreateVertexInputState(const MG_State::GLState::VertexArrayObject& vao);
+        static SizeT GetComponentSize(DataType type);
 
     private:
         static VkFormat ToVkVertexFormat(DataType type, Int size, Bool normalized, Bool isInteger);
-        static SizeT GetComponentSize(DataType type);
 
         const VulkanRendererConfig& m_config;
         UnorderedMap<HashType, BackendVertexInputState> m_cache;

MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.cpp

@@ -0,0 +1,254 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "VkBufferManager.h"
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    namespace {
+        constexpr Uint32 kResidentBufferGCInterval = 60;
+        constexpr VmaAllocationCreateFlags kResidentBufferAllocationFlags =
+            VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT;
+    } // namespace
+
+    Bool VkBufferManager::Initialize(const VkBufferManagerInitInfo& initInfo) {
+        Shutdown();
+
+        MOBILEGL_ASSERT(initInfo.allocator != nullptr, "VkBufferManager::Initialize requires valid allocator");
+        MOBILEGL_ASSERT(initInfo.frameCount > 0, "VkBufferManager::Initialize requires non-zero frame count");
+
+        m_initInfo = initInfo;
+        m_deferredResidentReleases.resize(initInfo.frameCount);
+        m_currentFrameIndex = 0;
+        return InitializeTransientArenas();
+    }
+
+    void VkBufferManager::Shutdown() {
+        m_transientUploadArena.Shutdown();
+        DestroyResidentBuffers();
+        DestroyDeferredResidentReleases();
+        m_initInfo = {};
+        m_currentFrameIndex = 0;
+        m_residentGcTick = 0;
+    }
+
+    Bool VkBufferManager::RecreateTransientArenas(Uint32 frameCount) {
+        MOBILEGL_ASSERT(m_initInfo.allocator != nullptr, "VkBufferManager::RecreateTransientArenas requires initialized manager");
+        MOBILEGL_ASSERT(frameCount > 0, "VkBufferManager::RecreateTransientArenas requires non-zero frame count");
+
+        m_transientUploadArena.Shutdown();
+        m_initInfo.frameCount = frameCount;
+        DestroyDeferredResidentReleases();
+        m_deferredResidentReleases.resize(frameCount);
+        m_currentFrameIndex = 0;
+        return InitializeTransientArenas();
+    }
+
+    void VkBufferManager::BeginFrame(Uint32 frameIndex) {
+        MOBILEGL_ASSERT(frameIndex < m_deferredResidentReleases.size(),
+                        "VkBufferManager::BeginFrame frame index out of range");
+        m_currentFrameIndex = frameIndex;
+        CollectDeferredResidentReleases(frameIndex);
+        m_transientUploadArena.BeginFrame(frameIndex);
+    }
+
+    Bool VkBufferManager::UploadTransient(BufferKind kind, Uint32 frameIndex, const void* data,
+                                          VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice) {
+        (void)kind;
+        return m_transientUploadArena.Upload(frameIndex, data, size, alignment, outSlice);
+    }
+
+    Bool VkBufferManager::InitializeTransientArenas() {
+        return m_transientUploadArena.Initialize({
+            .allocator = m_initInfo.allocator,
+            .frameCount = m_initInfo.frameCount,
+            .usage = VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT |
+                     VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT | VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT,
+            .memoryUsage = m_initInfo.transientMemoryUsage,
+            .allocationFlags = m_initInfo.transientAllocationFlags,
+            .minBufferSize = m_initInfo.minUploadBytes,
+            .persistentlyMapped = m_initInfo.transientPersistentMapping,
+        });
+    }
+
+    Bool VkBufferManager::SyncResidentBuffer(BufferKind kind,
+                                             const SharedPtr<MG_State::GLState::BufferObject>& bufferObject,
+                                             BufferSlice& outSlice) {
+        const VkBufferUsageFlags requiredUsage = GetVkBufferUsage(kind);
+        MOBILEGL_ASSERT(requiredUsage != 0,
+                        "VkBufferManager::SyncResidentBuffer unsupported resident buffer kind");
+        MOBILEGL_ASSERT(bufferObject != nullptr, "VkBufferManager::SyncResidentBuffer requires valid buffer object");
+        CollectResidentGarbageIfNeeded();
+
+        const auto* bufferData = bufferObject->GetDataReadOnly().get();
+        MOBILEGL_ASSERT(bufferData != nullptr, "VkBufferManager::SyncResidentBuffer requires frontend buffer data");
+        bufferObject->MarkPersistentMappedRangeDirty();
+
+        const VkDeviceSize bufferSize = static_cast<VkDeviceSize>(bufferObject->GetSize());
+        if (bufferSize == 0) {
+            MGLOG_E("VkBufferManager::SyncResidentBuffer failed: buffer size is zero");
+            return false;
+        }
+
+        auto& entry = m_residentBuffers[bufferObject.get()];
+        entry.aliveRef = bufferObject;
+
+        const auto changeBits = bufferObject->GetChangeBits();
+        const Bool needsRecreate = !entry.buffer.IsValid() || entry.size != bufferSize ||
+                                   ((entry.usage & requiredUsage) != requiredUsage) ||
+                                   (changeBits & BufferChangeBits::PreferReallocationBit);
+        if (needsRecreate) {
+            const VkBufferUsageFlags recreatedUsage = entry.usage | requiredUsage;
+            DeferResidentRelease(std::move(entry.buffer));
+            const Bool created = entry.buffer.Create({
+                .allocator = m_initInfo.allocator,
+                .size = bufferSize,
+                .usage = recreatedUsage,
+                .memoryUsage = VMA_MEMORY_USAGE_AUTO,
+                .allocationFlags = kResidentBufferAllocationFlags,
+            });
+            if (!created || entry.buffer.Map() == nullptr) {
+                MGLOG_E("VkBufferManager::SyncResidentBuffer failed: unable to create resident buffer");
+                entry.buffer.Destroy();
+                entry.size = 0;
+                entry.usage = 0;
+                return false;
+            }
+            if (!entry.buffer.Upload(bufferData->data(), bufferSize, 0)) {
+                MGLOG_E("VkBufferManager::SyncResidentBuffer failed: initial upload failed");
+                entry.buffer.Destroy();
+                entry.size = 0;
+                entry.usage = 0;
+                return false;
+            }
+            entry.size = bufferSize;
+            entry.usage = recreatedUsage;
+            bufferObject->ClearDirty();
+            outSlice = entry.buffer.GetSlice(0, bufferSize);
+            return true;
+        }
+
+        if (changeBits & BufferChangeBits::DirtyBit) {
+            const auto& dirtyRanges = bufferObject->GetDirtyRanges();
+            for (const auto& range : dirtyRanges) {
+                const VkDeviceSize rangeOffset = static_cast<VkDeviceSize>(range.start);
+                const VkDeviceSize rangeSize = static_cast<VkDeviceSize>(range.end - range.start);
+                if (rangeSize == 0) {
+                    continue;
+                }
+                if (!entry.buffer.Upload(bufferData->data() + range.start, rangeSize, rangeOffset)) {
+                    MGLOG_E("VkBufferManager::SyncResidentBuffer failed: dirty range upload failed");
+                    return false;
+                }
+            }
+            bufferObject->ClearDirty();
+        }
+
+        outSlice = entry.buffer.GetSlice(0, bufferSize);
+        return true;
+    }
+
+    void VkBufferManager::DowngradeResidentBufferToTransient(const SharedPtr<MG_State::GLState::BufferObject>& bufferObject) {
+        if (bufferObject == nullptr) {
+            return;
+        }
+
+        auto it = m_residentBuffers.find(bufferObject.get());
+        if (it == m_residentBuffers.end()) {
+            return;
+        }
+
+        DeferResidentRelease(std::move(it->second.buffer));
+        m_residentBuffers.erase(it);
+    }
+
+    void VkBufferManager::DeferResidentRelease(VkBufferObject&& buffer) {
+        if (!buffer.IsValid()) {
+            return;
+        }
+
+        if (m_deferredResidentReleases.empty()) {
+            buffer.Destroy();
+            return;
+        }
+
+        MOBILEGL_ASSERT(m_currentFrameIndex < m_deferredResidentReleases.size(),
+                        "VkBufferManager::DeferResidentRelease current frame index out of range");
+        m_deferredResidentReleases[m_currentFrameIndex].push_back(std::move(buffer));
+    }
+
+    void VkBufferManager::CollectDeferredResidentReleases(Uint32 frameIndex) {
+        MOBILEGL_ASSERT(frameIndex < m_deferredResidentReleases.size(),
+                        "VkBufferManager::CollectDeferredResidentReleases frame index out of range");
+        m_deferredResidentReleases[frameIndex].clear();
+    }
+
+    VkBufferUsageFlags VkBufferManager::GetVkBufferUsage(BufferKind kind) {
+        switch (kind) {
+        case BufferKind::Vertex:
+        case BufferKind::Index:
+            // A GL buffer can be rebound between ARRAY_BUFFER and ELEMENT_ARRAY_BUFFER,
+            // and may even be used as both within the same draw setup. Keep resident
+            // vertex/index buffers compatible with both roles from the start so we
+            // never need to recreate a buffer after it has already been bound.
+            return VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT;
+        case BufferKind::Uniform:
+            return VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
+        case BufferKind::TextureBuffer:
+            return VK_BUFFER_USAGE_UNIFORM_TEXEL_BUFFER_BIT;
+        case BufferKind::ShaderStorage:
+            return VK_BUFFER_USAGE_STORAGE_BUFFER_BIT | VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT;
+        case BufferKind::Indirect:
+            return VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT | VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
+        default:
+            return 0;
+        }
+    }
+
+    void VkBufferManager::CollectResidentGarbageIfNeeded() {
+        ++m_residentGcTick;
+        if (m_residentGcTick < kResidentBufferGCInterval) {
+            return;
+        }
+        CollectResidentGarbageNow();
+        m_residentGcTick = 0;
+    }
+
+    void VkBufferManager::CollectResidentGarbageNow() {
+        Vector<MG_State::GLState::BufferObject*> staleBuffers;
+        staleBuffers.reserve(m_residentBuffers.size());
+
+        for (const auto& [rawBuffer, entry] : m_residentBuffers) {
+            if (entry.aliveRef.expired()) {
+                staleBuffers.push_back(rawBuffer);
+            }
+        }
+
+        for (const auto* rawBuffer : staleBuffers) {
+            auto it = m_residentBuffers.find(const_cast<MG_State::GLState::BufferObject*>(rawBuffer));
+            if (it == m_residentBuffers.end()) {
+                continue;
+            }
+            DeferResidentRelease(std::move(it->second.buffer));
+            m_residentBuffers.erase(it);
+        }
+    }
+
+    void VkBufferManager::DestroyDeferredResidentReleases() {
+        for (auto& deferredReleases : m_deferredResidentReleases) {
+            deferredReleases.clear();
+        }
+        m_deferredResidentReleases.clear();
+    }
+
+    void VkBufferManager::DestroyResidentBuffers() {
+        for (auto& [_, entry] : m_residentBuffers) {
+            entry.buffer.Destroy();
+        }
+        m_residentBuffers.clear();
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.h

@@ -0,0 +1,75 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+#include "BufferArena.h"
+#include "MG_State/GLState/BufferState/BufferObject.h"
+#include "../VkIncludes.h"
+#include <Includes.h>
+#include <vk_mem_alloc.h>
+
+namespace MobileGL::MG_Backend::DirectVulkan {
+    enum class BufferKind : Uint8 {
+        Vertex,
+        Index,
+        Uniform,
+        TextureBuffer,
+        ShaderStorage,
+        Indirect,
+    };
+
+    struct VkBufferManagerInitInfo {
+        VmaAllocator allocator = nullptr;
+        Uint32 frameCount = 0;
+        VkDeviceSize minUploadBytes = 4 * 1024 * 1024;
+        VmaMemoryUsage transientMemoryUsage = VMA_MEMORY_USAGE_AUTO;
+        VmaAllocationCreateFlags transientAllocationFlags = VMA_ALLOCATION_CREATE_HOST_ACCESS_SEQUENTIAL_WRITE_BIT;
+        Bool transientPersistentMapping = false;
+    };
+
+    class VkBufferManager {
+    public:
+        Bool Initialize(const VkBufferManagerInitInfo& initInfo);
+        void Shutdown();
+
+        // Recreate all per-frame transient arenas
+        Bool RecreateTransientArenas(Uint32 frameCount);
+        void BeginFrame(Uint32 frameIndex);
+
+        Bool UploadTransient(BufferKind kind, Uint32 frameIndex, const void* data, VkDeviceSize size,
+                             VkDeviceSize alignment, BufferSlice& outSlice);
+        Bool SyncResidentBuffer(BufferKind kind, const SharedPtr<MG_State::GLState::BufferObject>& bufferObject,
+                                BufferSlice& outSlice);
+        void DowngradeResidentBufferToTransient(const SharedPtr<MG_State::GLState::BufferObject>& bufferObject);
+
+    private:
+        struct ResidentBufferEntry {
+            WeakPtr<MG_State::GLState::BufferObject> aliveRef;
+            VkBufferObject buffer;
+            VkDeviceSize size = 0;
+            VkBufferUsageFlags usage = 0;
+        };
+
+        Bool InitializeTransientArenas();
+        static VkBufferUsageFlags GetVkBufferUsage(BufferKind kind);
+        void DeferResidentRelease(VkBufferObject&& buffer);
+        void CollectDeferredResidentReleases(Uint32 frameIndex);
+        void CollectResidentGarbageIfNeeded();
+        void CollectResidentGarbageNow();
+        void DestroyDeferredResidentReleases();
+        void DestroyResidentBuffers();
+
+        VkBufferManagerInitInfo m_initInfo{};
+        BufferArena m_transientUploadArena;
+        UnorderedMap<MG_State::GLState::BufferObject*, ResidentBufferEntry> m_residentBuffers;
+        Vector<Vector<VkBufferObject>> m_deferredResidentReleases;
+        Uint32 m_currentFrameIndex = 0;
+        Uint32 m_residentGcTick = 0;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferObject.cpp

@@ -13,11 +13,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         m_allocator = other.m_allocator;
         m_buffer = other.m_buffer;
         m_allocation = other.m_allocation;
+        m_mappedData = other.m_mappedData;
         m_size = other.m_size;
 
         other.m_allocator = nullptr;
         other.m_buffer = VK_NULL_HANDLE;
         other.m_allocation = nullptr;
+        other.m_mappedData = nullptr;
         other.m_size = 0;
     }
 
@@ -31,11 +33,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         m_allocator = other.m_allocator;
         m_buffer = other.m_buffer;
         m_allocation = other.m_allocation;
+        m_mappedData = other.m_mappedData;
         m_size = other.m_size;
 
         other.m_allocator = nullptr;
         other.m_buffer = VK_NULL_HANDLE;
         other.m_allocation = nullptr;
+        other.m_mappedData = nullptr;
         other.m_size = 0;
         return *this;
     }
@@ -44,6 +48,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Destroy();
     }
 
+    Bool VkBufferObject::Create(const VkBufferObjectDesc& desc) {
+        return Create(desc.allocator, desc.size, desc.usage, desc.memoryUsage, desc.allocationFlags);
+    }
+
     Bool VkBufferObject::Create(VmaAllocator allocator, VkDeviceSize size, VkBufferUsageFlags usage,
                                 VmaMemoryUsage memoryUsage, VmaAllocationCreateFlags allocationFlags) {
         MOBILEGL_ASSERT(allocator != nullptr, "VkBufferObject::Create requires valid VMA allocator");
@@ -78,6 +86,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     }
 
     void VkBufferObject::Destroy() {
+        Unmap();
         if (m_allocator != nullptr && m_buffer != VK_NULL_HANDLE && m_allocation != nullptr) {
             vmaDestroyBuffer(m_allocator, m_buffer, m_allocation);
         }
@@ -87,6 +96,33 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         m_size = 0;
     }
 
+    void* VkBufferObject::Map() {
+        MOBILEGL_ASSERT(IsValid(), "VkBufferObject::Map called on invalid buffer");
+
+        if (m_mappedData != nullptr) {
+            return m_mappedData;
+        }
+
+        const VkResult mapResult = vmaMapMemory(m_allocator, m_allocation, &m_mappedData);
+        if (mapResult != VK_SUCCESS || m_mappedData == nullptr) {
+            MGLOG_E("VkBufferObject::Map failed: vmaMapMemory returned %d", mapResult);
+            m_mappedData = nullptr;
+            return nullptr;
+        }
+
+        return m_mappedData;
+    }
+
+    void VkBufferObject::Unmap() {
+        if (!IsValid() || m_mappedData == nullptr) {
+            m_mappedData = nullptr;
+            return;
+        }
+
+        vmaUnmapMemory(m_allocator, m_allocation);
+        m_mappedData = nullptr;
+    }
+
     Bool VkBufferObject::Upload(const void* data, VkDeviceSize size, VkDeviceSize offset) {
         MOBILEGL_ASSERT(IsValid(), "VkBufferObject::Upload called on invalid buffer");
         MOBILEGL_ASSERT(data != nullptr || size == 0, "VkBufferObject::Upload data pointer is null");
@@ -96,15 +132,38 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             return true;
         }
 
-        void* mapped = nullptr;
+        const Bool wasMapped = IsMapped();
-        const VkResult mapResult = vmaMapMemory(m_allocator, m_allocation, &mapped);
+        void* mapped = wasMapped ? m_mappedData : Map();
-        if (mapResult != VK_SUCCESS || mapped == nullptr) {
+        if (mapped == nullptr) {
-            MGLOG_E("VkBufferObject::Upload failed: vmaMapMemory returned %d", mapResult);
+            MGLOG_E("VkBufferObject::Upload failed: unable to map buffer");
             return false;
         }
 
         Memcpy(static_cast<Uint8*>(mapped) + offset, data, static_cast<SizeT>(size));
-        vmaUnmapMemory(m_allocator, m_allocation);
+        const VkResult flushResult = vmaFlushAllocation(m_allocator, m_allocation, offset, size);
+        if (flushResult != VK_SUCCESS) {
+            MGLOG_E("VkBufferObject::Upload failed: vmaFlushAllocation returned %d", flushResult);
+            if (!wasMapped) {
+                Unmap();
+            }
+            return false;
+        }
+        if (!wasMapped) {
+            Unmap();
+        }
         return true;
     }
+
+    BufferSlice VkBufferObject::GetSlice(VkDeviceSize offset, VkDeviceSize size) const {
+        MOBILEGL_ASSERT(offset <= m_size, "VkBufferObject::GetSlice offset out of range");
+        const VkDeviceSize resolvedSize = (size == VK_WHOLE_SIZE) ? (m_size - offset) : size;
+        MOBILEGL_ASSERT(offset + resolvedSize <= m_size, "VkBufferObject::GetSlice range out of bounds");
+
+        BufferSlice slice{};
+        slice.buffer = m_buffer;
+        slice.offset = offset;
+        slice.size = resolvedSize;
+        slice.mapped = (m_mappedData != nullptr) ? static_cast<Uint8*>(m_mappedData) + offset : nullptr;
+        return slice;
+    }
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferObject.h

@@ -8,11 +8,20 @@
 
 #pragma once
 
+#include "BufferSlice.h"
 #include "../VkIncludes.h"
 #include <Includes.h>
 #include <vk_mem_alloc.h>
 
 namespace MobileGL::MG_Backend::DirectVulkan {
+    struct VkBufferObjectDesc {
+        VmaAllocator allocator = nullptr;
+        VkDeviceSize size = 0;
+        VkBufferUsageFlags usage = 0;
+        VmaMemoryUsage memoryUsage = VMA_MEMORY_USAGE_AUTO;
+        VmaAllocationCreateFlags allocationFlags = 0;
+    };
+
     class VkBufferObject {
     public:
         VkBufferObject() = default;
@@ -23,20 +32,27 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         VkBufferObject(VkBufferObject&& other) noexcept;
         VkBufferObject& operator=(VkBufferObject&& other) noexcept;
 
+        Bool Create(const VkBufferObjectDesc& desc);
         Bool Create(VmaAllocator allocator, VkDeviceSize size, VkBufferUsageFlags usage,
                     VmaMemoryUsage memoryUsage, VmaAllocationCreateFlags allocationFlags = 0);
         void Destroy();
 
+        void* Map();
+        void Unmap();
         Bool Upload(const void* data, VkDeviceSize size, VkDeviceSize offset = 0);
 
         VkBuffer GetHandle() const { return m_buffer; }
         VkDeviceSize GetSize() const { return m_size; }
+        BufferSlice GetSlice(VkDeviceSize offset = 0, VkDeviceSize size = VK_WHOLE_SIZE) const;
+        void* GetMappedData() const { return m_mappedData; }
+        Bool IsMapped() const { return m_mappedData != nullptr; }
         Bool IsValid() const { return m_allocator != nullptr && m_buffer != VK_NULL_HANDLE && m_allocation != nullptr; }
 
     private:
         VmaAllocator m_allocator = nullptr;
         VkBuffer m_buffer = VK_NULL_HANDLE;
         VmaAllocation m_allocation = nullptr;
+        void* m_mappedData = nullptr;
         VkDeviceSize m_size = 0;
     };
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VkClearManager.cpp

@@ -8,7 +8,24 @@
 
 #include "VkClearManager.h"
 
+#include "MG_Util/Converters/MGToStr/FramebufferEnumConverter.h"
+#include "MG_Util/Converters/MGToStr/TextureEnumConverter.h"
+
 namespace MobileGL::MG_Backend::DirectVulkan {
+    static SharedPtr<MG_State::GLState::ITextureObject> GetClearableAttachmentTexture(
+        const MG_State::GLState::FramebufferObject& drawFbo, FramebufferAttachmentType attachmentType) {
+        if (attachmentType == FramebufferAttachmentType::None) {
+            return nullptr;
+        }
+
+        const auto& attachment = drawFbo.GetAttachment(attachmentType);
+        if (!attachment.IsTexture() || attachment.IsRenderbuffer()) {
+            return nullptr;
+        }
+
+        return attachment.GetTexture();
+    }
+
     Bool VkClearManager::Initialize() {
         return true;
     }
@@ -23,42 +40,71 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             auto& drawbufs = drawFbo.GetDrawBuffers();
             // This should automatically work on default & offscreen FBO
             for (auto drawbuf: drawbufs) {
-                if (drawbuf == FramebufferAttachmentType::None ||
+                auto texture = GetClearableAttachmentTexture(drawFbo, drawbuf);
-                    drawFbo.GetAttachment(drawbuf).IsRenderbuffer())
+                if (!texture) {
                     continue;
+                }
 
                 QueueClear({
-                    .color = clearPayload.color,
+                    .mask = GL_COLOR_BUFFER_BIT,
-                    .attachmentType = drawbuf
+                    .color = clearPayload.color
-                }, drawFbo.GetAttachment(drawbuf).GetTexture());
+                }, texture);
+
+                MGLOG_D("%s: %s (texture %d) - color = (%.2f, %.2f, %.2f, %.2f)", __func__,
+                    MG_Util::ConvertFramebufferAttachmentTypeToString(drawbuf).c_str(),
+                    texture->GetExternalIndex(),
+                    clearPayload.color[0], clearPayload.color[1], clearPayload.color[2], clearPayload.color[3]);
             }
         }
 
-        if (mask & GL_DEPTH_BUFFER_BIT &&
+        if (mask & GL_DEPTH_BUFFER_BIT) {
-            !drawFbo.GetAttachment(FramebufferAttachmentType::Depth).IsRenderbuffer()) {
+            auto texture = GetClearableAttachmentTexture(drawFbo, FramebufferAttachmentType::Depth);
-            QueueClear({
+            if (texture) {
-                .depth = clearPayload.depth,
+                QueueClear({
-                .attachmentType = FramebufferAttachmentType::Depth,
+                    .mask = GL_DEPTH_BUFFER_BIT,
-            }, drawFbo.GetAttachment(FramebufferAttachmentType::Depth).GetTexture());
+                    .depth = clearPayload.depth,
+                }, texture);
+
+                MGLOG_D("%s: Depth (texture %d) - depth = (%.2f)", __func__,
+                    texture->GetExternalIndex(), clearPayload.depth);
+            }
         }
 
-        if (mask & GL_STENCIL_BUFFER_BIT &&
+        if (mask & GL_STENCIL_BUFFER_BIT) {
-            !drawFbo.GetAttachment(FramebufferAttachmentType::Stencil).IsRenderbuffer()) {
+            auto texture = GetClearableAttachmentTexture(drawFbo, FramebufferAttachmentType::Stencil);
-            QueueClear({
+            if (texture) {
-                .stencil = clearPayload.stencil,
+                QueueClear({
-                .attachmentType = FramebufferAttachmentType::Stencil,
+                    .mask = GL_STENCIL_BUFFER_BIT,
-            }, drawFbo.GetAttachment(FramebufferAttachmentType::Stencil).GetTexture());
+                    .stencil = clearPayload.stencil,
+                }, texture);
+
+                MGLOG_D("%s: Stencil (texture %d) - stencil = (%u)", __func__,
+                    texture->GetExternalIndex(), clearPayload.stencil);
+            }
         }
     }
 
     void VkClearManager::QueueClear(const ClearAttachmentPayload& clearPayload,
                                     const SharedPtr<MG_State::GLState::ITextureObject>& texture) {
+        if (clearPayload.mask == 0) {
+            return;
+        }
         WeakPtr<MG_State::GLState::ITextureObject> weakTexturePtr = texture;
         if (weakTexturePtr.expired())
             return;
         auto* pTexture = weakTexturePtr.lock().get();
         m_aliveObjects[pTexture] = weakTexturePtr;
-        m_pendingClears[pTexture] = clearPayload;
+        auto& pending = m_pendingClears[pTexture];
+        pending.mask |= clearPayload.mask;
+        if (clearPayload.mask & GL_COLOR_BUFFER_BIT) {
+            pending.color = clearPayload.color;
+        }
+        if (clearPayload.mask & GL_DEPTH_BUFFER_BIT) {
+            pending.depth = clearPayload.depth;
+        }
+        if (clearPayload.mask & GL_STENCIL_BUFFER_BIT) {
+            pending.stencil = clearPayload.stencil;
+        }
     }
 
     Bool VkClearManager::HasPendingClear(MG_State::GLState::ITextureObject* texture) {
@@ -68,14 +114,23 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     Bool VkClearManager::GetPendingClear(MG_State::GLState::ITextureObject* texture, ClearAttachmentPayload& outPayload) {
         if (m_aliveObjects.find(texture) == m_aliveObjects.end() ||
             m_pendingClears.find(texture) == m_pendingClears.end()) {
+            MGLOG_D("%s: Failed getting pending clear for texture %d", __func__, texture->GetExternalIndex());
             return false;
         }
 
         outPayload = m_pendingClears[texture];
+        MGLOG_D("%s: Got pending clear for texture %d (%s), mask=0x%x clear value: color = (%.2f, %.2f, %.2f, %.2f), depth = (%.2f), stencil = (%u)", __func__,
+            texture->GetExternalIndex(),
+            MG_Util::ConvertTextureInternalFormatToString(texture->GetFormat()).c_str(),
+            static_cast<Uint32>(outPayload.mask),
+            outPayload.color[0], outPayload.color[1], outPayload.color[2], outPayload.color[3],
+            outPayload.depth,
+            outPayload.stencil);
         return true;
     }
 
     void VkClearManager::PopPendingClear(MG_State::GLState::ITextureObject* texture) {
+        MGLOG_D("%s: Pop pending clear for texture %d", __func__, texture->GetExternalIndex());
         m_aliveObjects.erase(texture);
         m_pendingClears.erase(texture);
     }
@@ -87,11 +142,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         }
 
         SizeT count = 0;
-        for (const auto& [raw, weak]: m_aliveObjects) {
+        for (auto it = m_aliveObjects.begin(); it != m_aliveObjects.end();) {
-            if (weak.expired()) {
+            auto current = it++;
-                count++;
+            if (current->second.expired()) {
-                m_pendingClears.erase(raw);
+                m_pendingClears.erase(current->first);
-                m_aliveObjects.erase(raw);
+                m_aliveObjects.erase(current);
+                ++count;
             }
         }
         return count;

MobileGL/MG_Backend/DirectVulkan/Renderer/VkClearManager.h

@@ -23,12 +23,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     };
 
     struct ClearAttachmentPayload {
-        union {
+        GLbitfield mask = 0;
-            FloatVec4 color;
+        FloatVec4 color = FloatVec4(0.0f, 0.0f, 0.0f, 0.0f);
-            Float depth{};
+        Float depth = 1.0f;
-            Uint32 stencil;
+        Uint32 stencil = 0;
-        };
-        FramebufferAttachmentType attachmentType = FramebufferAttachmentType::Color0;
     };
 
     class VkClearManager {

MobileGL/MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.cpp

@@ -10,9 +10,74 @@
 
 #include "MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h"
 #include "MG_State/GLState/TextureState/TextureObject2D.h"
+#include "MG_Util/Converters/MGToStr/FramebufferEnumConverter.h"
 #include "MG_Util/Converters/MGToVk/TextureEnumConverter.h"
+#include "MG_Util/Metrics/TextureMetrics.h"
 
 namespace MobileGL::MG_Backend::DirectVulkan {
+    static Float ResolveColorClearAlpha(const MG_State::GLState::ITextureObject* texture, Float requestedAlpha) {
+        if (texture != nullptr && MG_Util::GetBaseInternalFormatComponentCount(texture->GetFormat()) == 3) {
+            return 1.0f;
+        }
+        return requestedAlpha;
+    }
+
+    static MG_State::GLState::ITextureObject* ResolveCompleteColorAttachmentTexture(
+        const MG_State::GLState::FramebufferObject& fbo,
+        FramebufferAttachmentType attachmentType,
+        Uint32 drawBufferIndex) {
+        if (attachmentType == FramebufferAttachmentType::None) {
+            return nullptr;
+        }
+
+        const auto& attachment = fbo.GetAttachment(attachmentType);
+        if (!attachment.IsTexture()) {
+            if (attachment.IsEmpty()) {
+                MGLOG_D("GetOrCreateRenderPass: draw buffer slot %u (%s) on FBO %u has no bound color attachment; using VK_ATTACHMENT_UNUSED",
+                        drawBufferIndex,
+                        MG_Util::ConvertFramebufferAttachmentTypeToString(attachmentType).c_str(),
+                        fbo.GetExternalIndex());
+            }
+            return nullptr;
+        }
+
+        if (!attachment.IsComplete()) {
+            MGLOG_W("GetOrCreateRenderPass: draw buffer slot %u (%s) on FBO %u has an incomplete texture attachment; using VK_ATTACHMENT_UNUSED",
+                    drawBufferIndex,
+                    MG_Util::ConvertFramebufferAttachmentTypeToString(attachmentType).c_str(),
+                    fbo.GetExternalIndex());
+            return nullptr;
+        }
+
+        auto* texture = attachment.GetTexture().get();
+        if (texture == nullptr) {
+            MGLOG_W("GetOrCreateRenderPass: draw buffer slot %u (%s) on FBO %u resolved to a null texture; using VK_ATTACHMENT_UNUSED",
+                    drawBufferIndex,
+                    MG_Util::ConvertFramebufferAttachmentTypeToString(attachmentType).c_str(),
+                    fbo.GetExternalIndex());
+            return nullptr;
+        }
+
+        return texture;
+    }
+
+    DepthStencilAttachmentLoadInfo ResolveDepthStencilAttachmentLoadInfo(
+        VkImageLayout trackedLayout, Bool clearDepth, Bool clearStencil) {
+        DepthStencilAttachmentLoadInfo info{};
+        info.depthLoadOp = clearDepth
+            ? VK_ATTACHMENT_LOAD_OP_CLEAR
+            : (trackedLayout == VK_IMAGE_LAYOUT_UNDEFINED ? VK_ATTACHMENT_LOAD_OP_DONT_CARE
+                                                          : VK_ATTACHMENT_LOAD_OP_LOAD);
+        info.stencilLoadOp = clearStencil
+            ? VK_ATTACHMENT_LOAD_OP_CLEAR
+            : (trackedLayout == VK_IMAGE_LAYOUT_UNDEFINED ? VK_ATTACHMENT_LOAD_OP_DONT_CARE
+                                                          : VK_ATTACHMENT_LOAD_OP_LOAD);
+        info.initialLayout =
+            (trackedLayout == VK_IMAGE_LAYOUT_UNDEFINED || (clearDepth && clearStencil)) ? VK_IMAGE_LAYOUT_UNDEFINED
+                                                                                         : trackedLayout;
+        return info;
+    }
+
     VkRenderPassManager::VkRenderPassManager(VkDevice device,
         const VulkanRendererConfig& config, VkClearManager& clearManager, VkTextureManager& textureManager,
         SwapchainObject& swapchainObject):
@@ -66,6 +131,18 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             else if (att.IsRenderbuffer())
                 contentPtr = att.GetRenderbuffer().get();
             XXHASH_VERIFY(XXH64_update(m_hashState, &contentPtr, sizeof(contentPtr)));
+            if (att.IsTexture()) {
+                const Int textureLevel = att.GetTextureLevel();
+                XXHASH_VERIFY(XXH64_update(m_hashState, &textureLevel, sizeof(textureLevel)));
+
+                Uint64 imageIdentity = 0;
+                auto* texture = att.GetTexture().get();
+                auto* resource = m_textureManager.SyncTextureAndGetDescriptor(*texture);
+                if (resource != nullptr) {
+                    imageIdentity = reinterpret_cast<Uint64>(resource->image);
+                }
+                XXHASH_VERIFY(XXH64_update(m_hashState, &imageIdentity, sizeof(imageIdentity)));
+            }
 
             if (includePendingClear && att.IsTexture()) {
                 auto* texture = att.GetTexture().get();
@@ -76,8 +153,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                     Bool hasPayload = m_clearManager.GetPendingClear(texture, clearPayload);
                     XXHASH_VERIFY(XXH64_update(m_hashState, &hasPayload, sizeof(hasPayload)));
                     if (hasPayload) {
-                        XXHASH_VERIFY(XXH64_update(
+                        XXHASH_VERIFY(XXH64_update(m_hashState, &clearPayload.mask, sizeof(clearPayload.mask)));
-                            m_hashState, &clearPayload.attachmentType, sizeof(clearPayload.attachmentType)));
                     }
                 }
 
@@ -91,9 +167,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                         currentLayout = m_swapchainObject.GetDepthStencilImageLayout(swapchainImageIndex);
                     }
                 } else {
-                    auto* resource = m_textureManager.SyncTextureAndGetDescriptor(*texture);
+                    auto* textureResource = m_textureManager.SyncTextureAndGetDescriptor(*texture);
-                    if (resource != nullptr) {
+                    if (textureResource != nullptr) {
-                        currentLayout = resource->layout;
+                        currentLayout = textureResource->layout;
                     }
                 }
                 XXHASH_VERIFY(XXH64_update(m_hashState, &currentLayout, sizeof(currentLayout)));
@@ -113,10 +189,38 @@ namespace MobileGL::MG_Backend::DirectVulkan {
 
     RenderPassEntry& VkRenderPassManager::GetOrCreateRenderPass(const MG_State::GLState::FramebufferObject& fbo,
                                                                 Uint32 swapchainImageIndex) {
+        auto hasPendingClearOnFramebuffer = [&]() -> Bool {
+            const auto& drawBuffers = fbo.GetDrawBuffers();
+            for (auto attachment : drawBuffers) {
+                if (attachment == FramebufferAttachmentType::None) {
+                    continue;
+                }
+
+                const auto& att = fbo.GetAttachment(attachment);
+                if (att.IsTexture() && m_clearManager.HasPendingClear(att.GetTexture().get())) {
+                    return true;
+                }
+            }
+
+            const auto& depthAtt = fbo.GetAttachment(FramebufferAttachmentType::Depth);
+            if (depthAtt.IsTexture() && m_clearManager.HasPendingClear(depthAtt.GetTexture().get())) {
+                return true;
+            }
+
+            const auto& stencilAtt = fbo.GetAttachment(FramebufferAttachmentType::Stencil);
+            if (stencilAtt.IsTexture() && m_clearManager.HasPendingClear(stencilAtt.GetTexture().get())) {
+                return true;
+            }
+
+            return false;
+        };
+
         // retrieve from cache first
         auto* activeRenderPass = GetActiveRenderPass();
         auto compatibilityHash = ComputeHash(fbo, swapchainImageIndex, false);
-        if (activeRenderPass != nullptr && activeRenderPass->CompatibleWith(compatibilityHash)) {
+        if (activeRenderPass != nullptr &&
+            activeRenderPass->CompatibleWith(compatibilityHash) &&
+            !hasPendingClearOnFramebuffer()) {
             auto activeIt = m_renderPasses.find(activeRenderPass->hash);
             MOBILEGL_ASSERT(activeIt != m_renderPasses.end(),
                             "GetOrCreateRenderPass: active render pass hash=0x%llx is missing from cache",
@@ -131,43 +235,50 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Bool isDefaultFbo = (&fbo == MG_Impl::GLImpl::FramebufferImpl::pDefaultFramebufferInfo->defaultFBO.get());
         // Color attachment
         auto& drawbufs = fbo.GetDrawBuffers();
-        Int validDrawBufCount = 0;
+        const Uint32 colorAttachmentSlotCount = static_cast<Uint32>(drawbufs.size());
-        for (Int i = 0; i < drawbufs.size(); ++i) {
-            auto drawbuf = drawbufs[i];
-            if (drawbuf != FramebufferAttachmentType::None)
-                validDrawBufCount = std::max(validDrawBufCount, i + 1);
-        }
 
         Int width = 0;
         Int height = 0;
-        Vector<VkAttachmentDescription> attachmentDescriptions(validDrawBufCount);
+        Vector<VkAttachmentDescription> attachmentDescriptions;
-        Vector<VkAttachmentReference> colorAttachmentRefs(validDrawBufCount);
+        attachmentDescriptions.reserve(colorAttachmentSlotCount + 1);
+        // Keep the full GL draw buffer slot span so fragment outputs targeting GL_NONE map to VK_ATTACHMENT_UNUSED.
+        Vector<VkAttachmentReference> colorAttachmentRefs(colorAttachmentSlotCount);
+        for (auto& attachmentRef : colorAttachmentRefs) {
+            attachmentRef.attachment = VK_ATTACHMENT_UNUSED;
+            attachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+        }
         Vector<PendingClearAttachmentInfo> pendingClearAttachments;
+        pendingClearAttachments.reserve(colorAttachmentSlotCount + 1);
         Vector<TrackedAttachmentLayoutInfo> trackedAttachmentLayouts;
+        trackedAttachmentLayouts.reserve(colorAttachmentSlotCount + 1);
         auto& textureResources = RenderPassEntry::s_textureResourcesScratch;
         textureResources.clear();
-        textureResources.resize(validDrawBufCount, nullptr);
+        textureResources.reserve(colorAttachmentSlotCount + 1);
-        Vector<VkImageView> attachmentViews(validDrawBufCount, VK_NULL_HANDLE);
+        Vector<VkImageView> attachmentViews;
+        attachmentViews.reserve(colorAttachmentSlotCount + 1);
         // This should automatically work on default & offscreen FBO
         // assuming default FBO has the right param
-        for (Int i = 0; i < validDrawBufCount; ++i) {
+        for (Uint32 i = 0; i < colorAttachmentSlotCount; ++i) {
             auto drawbuf = drawbufs[i];
-            if (drawbuf == FramebufferAttachmentType::None ||
+            auto* texture = ResolveCompleteColorAttachmentTexture(fbo, drawbuf, i);
-                fbo.GetAttachment(drawbuf).IsRenderbuffer())
+            if (texture == nullptr)
                 continue;
 
             auto& att = fbo.GetAttachment(drawbuf);
-            auto* texture = att.GetTexture().get();
+            const Uint32 attachmentMipLevel = static_cast<Uint32>(std::max(att.GetTextureLevel(), 0));
             const auto textureTarget = texture->GetTarget();
+            const Uint32 attachmentIndex = static_cast<Uint32>(attachmentDescriptions.size());
+            attachmentDescriptions.emplace_back();
 
             // Color attachment description
-            VkAttachmentDescription& desc = attachmentDescriptions[i];
+            VkAttachmentDescription& desc = attachmentDescriptions.back();
             switch (textureTarget) {
                 case TextureTarget::Texture2D: {
                     auto* texture2d =
                         static_cast<MG_State::GLState::TextureObject2D*>(texture);
                     desc.flags = 0;
-                    desc.format =
+                    desc.format = isDefaultFbo ?
+                        m_swapchainObject.GetSurfaceFormat().format :
                         MG_Util::ConvertTextureInternalFormatToVkEnum(
                             texture2d->GetFormat());
                     desc.samples = VK_SAMPLE_COUNT_1_BIT;
@@ -185,14 +296,14 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                         VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
                     if (hasClear) {
                         pendingClearAttachments.emplace_back(PendingClearAttachmentInfo {
-                            .attachmentIndex = static_cast<Uint32>(i),
+                            .attachmentIndex = attachmentIndex,
                             .texture = texture
                         });
                     }
                     if (width == 0)
-                        width = texture2d->GetBaseSize().x();
+                        width = att.GetSize().x();
                     if (height == 0)
-                        height = texture2d->GetBaseSize().y();
+                        height = att.GetSize().y();
 
                     if (isDefaultFbo) {
                         const auto& swapchainViews = m_swapchainObject.GetImageViews();
@@ -204,18 +315,24 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                             .swapchainImageIndex = swapchainImageIndex,
                             .finalLayout = desc.finalLayout,
                         });
-                        attachmentViews[i] = swapchainViews[swapchainImageIndex];
+                        textureResources.emplace_back(nullptr);
+                        attachmentViews.emplace_back(swapchainViews[swapchainImageIndex]);
                     } else {
-                        textureResources[i] = m_textureManager.SyncTextureAndGetDescriptor(*texture);
+                        auto* textureResource = m_textureManager.SyncTextureAndGetDescriptor(*texture);
-                        MOBILEGL_ASSERT(textureResources[i],
+                        MOBILEGL_ASSERT(textureResource,
                                         "GetOrCreateRenderPass: SyncTextureAndGetDescriptor failed at color attachment %d", i);
-                        trackedColorLayout = textureResources[i]->layout;
+                        textureResources.emplace_back(textureResource);
+                        desc.format = textureResource->format;
+                        trackedColorLayout = textureResource->layout;
                         trackedAttachmentLayouts.emplace_back(TrackedAttachmentLayoutInfo {
                             .target = TrackedAttachmentTarget::Texture,
                             .texture = texture,
+                            .textureMipLevel = attachmentMipLevel,
                             .finalLayout = desc.finalLayout,
                         });
-                        attachmentViews[i] = textureResources[i]->view;
+                        attachmentViews.emplace_back(m_textureManager.GetOrCreateViewAtMipLevel(*texture, attachmentMipLevel));
+                        MOBILEGL_ASSERT(attachmentViews.back() != VK_NULL_HANDLE,
+                                        "GetOrCreateRenderPass: GetOrCreateAttachmentView failed at color attachment %d", i);
                     }
 
                     if (!hasClear && trackedColorLayout == VK_IMAGE_LAYOUT_UNDEFINED) {
@@ -236,7 +353,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
 
             // Attachment reference
             VkAttachmentReference& attachmentRef = colorAttachmentRefs[i];
-            attachmentRef.attachment = i;
+            attachmentRef.attachment = attachmentIndex;
             attachmentRef.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
         }
 
@@ -249,11 +366,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         VkTextureManager::TextureResource* depthTextureResource = nullptr;
         if (depthAtt.IsComplete() && depthAtt.IsTexture()) {
             auto& texture = *depthAtt.GetTexture();
+            const Uint32 attachmentMipLevel = static_cast<Uint32>(std::max(depthAtt.GetTextureLevel(), 0));
             const Uint32 depthAttachmentIndex = static_cast<Uint32>(attachmentDescriptions.size());
             ClearAttachmentPayload clearPayload{};
             Bool hasClear = m_clearManager.GetPendingClear(&texture, clearPayload);
-            Bool clearDepth = hasClear && clearPayload.attachmentType == FramebufferAttachmentType::Depth;
+            Bool clearDepth = hasClear && (clearPayload.mask & GL_DEPTH_BUFFER_BIT) != 0;
-            Bool clearStencil = hasClear && clearPayload.attachmentType == FramebufferAttachmentType::Stencil;
+            Bool clearStencil = hasClear && (clearPayload.mask & GL_STENCIL_BUFFER_BIT) != 0;
             VkImageLayout trackedDepthLayout = isDefaultFbo ?
                 m_swapchainObject.GetDepthStencilImageLayout(swapchainImageIndex) :
                 VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
@@ -264,30 +382,26 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 trackedDepthLayout = depthTextureResource->layout;
             }
             depthAttachmentDescription.flags = 0;
-            depthAttachmentDescription.format =
+            depthAttachmentDescription.format = isDefaultFbo ?
+                m_swapchainObject.GetDepthStencilFormat() :
                 MG_Util::ConvertTextureInternalFormatToVkEnum(texture.GetFormat());
+            if (!isDefaultFbo) {
+                depthAttachmentDescription.format = depthTextureResource->format;
+            }
             depthAttachmentDescription.samples = VK_SAMPLE_COUNT_1_BIT;
-            depthAttachmentDescription.loadOp = clearDepth ?
+            const auto loadInfo =
-                VK_ATTACHMENT_LOAD_OP_CLEAR :
+                ResolveDepthStencilAttachmentLoadInfo(trackedDepthLayout, clearDepth, clearStencil);
-                VK_ATTACHMENT_LOAD_OP_LOAD;
+            depthAttachmentDescription.loadOp = loadInfo.depthLoadOp;
             depthAttachmentDescription.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-            depthAttachmentDescription.stencilLoadOp = clearStencil ?
+            depthAttachmentDescription.stencilLoadOp = loadInfo.stencilLoadOp;
-                VK_ATTACHMENT_LOAD_OP_CLEAR :
-                VK_ATTACHMENT_LOAD_OP_LOAD;
             depthAttachmentDescription.stencilStoreOp = VK_ATTACHMENT_STORE_OP_STORE;
             depthAttachmentDescription.finalLayout = VK_IMAGE_LAYOUT_DEPTH_STENCIL_ATTACHMENT_OPTIMAL;
-            if (trackedDepthLayout == VK_IMAGE_LAYOUT_UNDEFINED) {
+            depthAttachmentDescription.initialLayout = loadInfo.initialLayout;
-                if (!clearDepth) {
+            if (trackedDepthLayout == VK_IMAGE_LAYOUT_UNDEFINED && (!clearDepth || !clearStencil)) {
-                    depthAttachmentDescription.loadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
+                MGLOG_W("GetOrCreateRenderPass: depth/stencil attachment textureId=%d starts with undefined layout "
-                }
+                        "and partial/no clear; using DONT_CARE for uncleared aspects",
-                if (!clearStencil) {
+                        texture.GetExternalIndex());
-                    depthAttachmentDescription.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
-                }
             }
-            depthAttachmentDescription.initialLayout =
-                (clearDepth && clearStencil) || trackedDepthLayout == VK_IMAGE_LAYOUT_UNDEFINED ?
-                    VK_IMAGE_LAYOUT_UNDEFINED :
-                    trackedDepthLayout;
             if (hasClear) {
                 pendingClearAttachments.emplace_back(PendingClearAttachmentInfo {
                     .attachmentIndex = depthAttachmentIndex,
@@ -302,25 +416,33 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 });
                 attachmentViews.emplace_back(m_swapchainObject.GetDepthStencilImageView(swapchainImageIndex));
             } else {
-                MOBILEGL_ASSERT(clearDepth || clearStencil || depthTextureResource->layout != VK_IMAGE_LAYOUT_UNDEFINED,
+                MOBILEGL_ASSERT(depthTextureResource->layout != VK_IMAGE_LAYOUT_UNDEFINED ||
+                                    depthAttachmentDescription.loadOp != VK_ATTACHMENT_LOAD_OP_LOAD,
                                 "GetOrCreateRenderPass: depth attachment textureId=%d has undefined tracked layout with LOAD_OP_LOAD",
                                 texture.GetExternalIndex());
+                MOBILEGL_ASSERT(depthTextureResource->layout != VK_IMAGE_LAYOUT_UNDEFINED ||
+                                    depthAttachmentDescription.stencilLoadOp != VK_ATTACHMENT_LOAD_OP_LOAD,
+                                "GetOrCreateRenderPass: stencil attachment textureId=%d has undefined tracked layout with LOAD_OP_LOAD",
+                                texture.GetExternalIndex());
                 trackedAttachmentLayouts.emplace_back(TrackedAttachmentLayoutInfo {
                     .target = TrackedAttachmentTarget::Texture,
                     .texture = &texture,
+                    .textureMipLevel = attachmentMipLevel,
                     .finalLayout = depthAttachmentDescription.finalLayout,
                 });
                 textureResources.emplace_back(depthTextureResource);
-                attachmentViews.emplace_back(depthTextureResource->view);
+                attachmentViews.emplace_back(m_textureManager.GetOrCreateViewAtMipLevel(texture, attachmentMipLevel));
+                MOBILEGL_ASSERT(attachmentViews.back() != VK_NULL_HANDLE,
+                                "GetOrCreateRenderPass: GetOrCreateAttachmentView failed at depth attachment");
                 if (width == 0 || height == 0) {
-                    auto texture2d = static_cast<MG_State::GLState::TextureObject2D*>(&texture);
+                    width = depthAtt.GetSize().x();
-                    width = texture2d->GetBaseSize().x();
+                    height = depthAtt.GetSize().y();
-                    height = texture2d->GetBaseSize().y();
                 }
             }
             attachmentDescriptions.emplace_back(depthAttachmentDescription);
             depthAttachmentRef.attachment = depthAttachmentIndex;
         }
+        const Bool hasDepthStencilAttachment = depthAttachmentRef.attachment != VK_ATTACHMENT_UNUSED;
 
         // Subpass
         VkSubpassDescription subpassDesc;
@@ -372,8 +494,17 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             Move(pendingClearAttachments),
             Move(trackedAttachmentLayouts),
             static_cast<Uint32>(attachmentViews.size()),
+            static_cast<Uint32>(colorAttachmentRefs.size()),
+            hasDepthStencilAttachment,
             extent,
             1 };
+        MGLOG_D("VkRenderPassManager::GetOrCreateRenderPass: hash=0x%llx compatibilityHash=0x%llx attachmentCount=%u colorAttachmentCount=%u extent=%dx%d",
+                static_cast<unsigned long long>(hash),
+                static_cast<unsigned long long>(compatibilityHash),
+                renderPassEntry.attachmentCount,
+                renderPassEntry.colorAttachmentCount,
+                extent.x(),
+                extent.y());
         auto [insertedIt, _] = m_renderPasses.emplace(hash, Move(renderPassEntry));
         return insertedIt->second;
     }
@@ -402,17 +533,18 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             if (!s_clearManager->GetPendingClear(pending.texture, clearPayload)) {
                 continue;
             }
-            if (clearPayload.attachmentType >= FramebufferAttachmentType::Color0 &&
+            if ((clearPayload.mask & GL_COLOR_BUFFER_BIT) != 0) {
-                clearPayload.attachmentType <= FramebufferAttachmentType::Color31) {
                 clearValues[pending.attachmentIndex].color = {
                     clearPayload.color.x(),
                     clearPayload.color.y(),
                     clearPayload.color.z(),
-                    clearPayload.color.w()
+                    ResolveColorClearAlpha(pending.texture, clearPayload.color.w())
                 };
-            } else if (clearPayload.attachmentType == FramebufferAttachmentType::Depth) {
+            }
+            if ((clearPayload.mask & GL_DEPTH_BUFFER_BIT) != 0) {
                 clearValues[pending.attachmentIndex].depthStencil.depth = clearPayload.depth;
-            } else if (clearPayload.attachmentType == FramebufferAttachmentType::Stencil) {
+            }
+            if ((clearPayload.mask & GL_STENCIL_BUFFER_BIT) != 0) {
                 clearValues[pending.attachmentIndex].depthStencil.stencil = clearPayload.stencil;
             }
         }
@@ -441,7 +573,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
                 switch (trackedAttachment.target) {
                     case TrackedAttachmentTarget::Texture:
                         MOBILEGL_ASSERT(s_textureManager != nullptr, "EndRenderPass: texture manager is null");
-                        s_textureManager->UpdateTrackedImageLayout(trackedAttachment.texture, trackedAttachment.finalLayout);
+                        s_textureManager->UpdateTrackedImageLayoutAfterAttachmentWrite(
+                            commandBuffer,
+                            trackedAttachment.texture,
+                            trackedAttachment.textureMipLevel,
+                            trackedAttachment.finalLayout);
                         break;
                     case TrackedAttachmentTarget::SwapchainColor:
                         MOBILEGL_ASSERT(s_swapchainObject != nullptr, "EndRenderPass: swapchain object is null");

MobileGL/MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.h

@@ -32,10 +32,20 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     struct TrackedAttachmentLayoutInfo {
         TrackedAttachmentTarget target = TrackedAttachmentTarget::Texture;
         MG_State::GLState::ITextureObject* texture = nullptr;
+        Uint32 textureMipLevel = 0;
         Uint32 swapchainImageIndex = 0;
         VkImageLayout finalLayout = VK_IMAGE_LAYOUT_UNDEFINED;
     };
 
+    struct DepthStencilAttachmentLoadInfo {
+        VkAttachmentLoadOp depthLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+        VkAttachmentLoadOp stencilLoadOp = VK_ATTACHMENT_LOAD_OP_LOAD;
+        VkImageLayout initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+    };
+
+    DepthStencilAttachmentLoadInfo ResolveDepthStencilAttachmentLoadInfo(
+        VkImageLayout trackedLayout, Bool clearDepth, Bool clearStencil);
+
     struct RenderPassEntry {
         static inline VkDevice s_device;
         static inline Vector<VkTextureManager::TextureResource*> s_textureResourcesScratch;
@@ -46,6 +56,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Vector<PendingClearAttachmentInfo> pendingClearAttachments;
         Vector<TrackedAttachmentLayoutInfo> trackedAttachmentLayouts;
         Uint32 attachmentCount = 0;
+        Uint32 colorAttachmentCount = 0;
+        Bool hasDepthStencilAttachment = false;
         IntVec2 extent = {0, 0};
         Uint32 subpass = 0;
 
@@ -59,6 +71,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             std::swap(pendingClearAttachments, that.pendingClearAttachments);
             std::swap(trackedAttachmentLayouts, that.trackedAttachmentLayouts);
             std::swap(attachmentCount, that.attachmentCount);
+            std::swap(colorAttachmentCount, that.colorAttachmentCount);
+            std::swap(hasDepthStencilAttachment, that.hasDepthStencilAttachment);
             std::swap(extent, that.extent);
             std::swap(subpass, that.subpass);
         }
@@ -70,6 +84,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             const Vector<PendingClearAttachmentInfo>& pendingClearAttachments,
             const Vector<TrackedAttachmentLayoutInfo>& trackedAttachmentLayouts,
             Uint32 attachmentCount,
+            Uint32 colorAttachmentCount,
+            Bool hasDepthStencilAttachment,
             IntVec2 extent, int subpass):
             hash(hash),
             renderPass(renderpass),
@@ -78,6 +94,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             pendingClearAttachments(Move(pendingClearAttachments)),
             trackedAttachmentLayouts(Move(trackedAttachmentLayouts)),
             attachmentCount(attachmentCount),
+            colorAttachmentCount(colorAttachmentCount),
+            hasDepthStencilAttachment(hasDepthStencilAttachment),
             extent(extent),
             subpass(subpass)
         {}

MobileGL/MG_Backend/DirectVulkan/Renderer/VkSamplerManager.cpp

@@ -10,7 +10,49 @@
 
 #include "MG_State/GLState/Core.h"
 
+#include <algorithm>
+#include <cmath>
+
 namespace MobileGL::MG_Backend::DirectVulkan {
+    namespace {
+        Bool UsesBorderColor(const MG_State::GLState::SamplerObject& sampler) {
+            return sampler.GetWrapS() == SamplerWrapMode::ClampToBorder ||
+                   sampler.GetWrapT() == SamplerWrapMode::ClampToBorder ||
+                   sampler.GetWrapR() == SamplerWrapMode::ClampToBorder;
+        }
+
+        Bool IsDepthTextureFormat(TextureInternalFormat format) {
+            switch (format) {
+            case TextureInternalFormat::DepthComponent:
+            case TextureInternalFormat::DepthComponent16:
+            case TextureInternalFormat::DepthComponent24:
+            case TextureInternalFormat::DepthComponent32:
+            case TextureInternalFormat::DepthComponent32F:
+            case TextureInternalFormat::Depth24Stencil8:
+            case TextureInternalFormat::Depth32FStencil8:
+            case TextureInternalFormat::DepthStencil:
+                return true;
+            default:
+                return false;
+            }
+        }
+
+        Bool NearlyEqual(Float lhs, Float rhs) {
+            return std::fabs(lhs - rhs) <= 1e-6f;
+        }
+
+        Float ResolveEffectiveMaxLod(const MG_State::GLState::SamplerObject& sampler) {
+            if (sampler.GetMipmapMode() == SamplerMipmapMode::None) {
+                return 0.0f;
+            }
+            return sampler.GetMaxLod();
+        }
+
+        Float ResolveEffectiveMinLod(const MG_State::GLState::SamplerObject& sampler, Float effectiveMaxLod) {
+            return std::min(sampler.GetMinLod(), effectiveMaxLod);
+        }
+    } // namespace
+
     Bool VkSamplerManager::Initialize(const InitInfo& initInfo) {
         Shutdown();
 
@@ -34,7 +76,8 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         m_config = nullptr;
     }
 
-    Uint64 VkSamplerManager::BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler) const {
+    Uint64 VkSamplerManager::BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler,
+                                             const MG_State::GLState::ITextureObject& texture) const {
         MOBILEGL_ASSERT(m_config != nullptr, "VkSamplerManager::BuildSamplerKey: m_config is null");
         XXHASH_VERIFY(XXH64_reset(m_hashState, m_config->CacheVersion));
 
@@ -50,21 +93,24 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         XXHASH_VERIFY(XXH64_update(m_hashState, &wrapT, sizeof(wrapT)));
         const auto wrapR = sampler.GetWrapR();
         XXHASH_VERIFY(XXH64_update(m_hashState, &wrapR, sizeof(wrapR)));
-        const auto minLod = sampler.GetMinLod();
+        const auto maxLod = ResolveEffectiveMaxLod(sampler);
+        const auto minLod = ResolveEffectiveMinLod(sampler, maxLod);
         XXHASH_VERIFY(XXH64_update(m_hashState, &minLod, sizeof(minLod)));
-        const auto maxLod = sampler.GetMaxLod();
         XXHASH_VERIFY(XXH64_update(m_hashState, &maxLod, sizeof(maxLod)));
         const auto lodBias = sampler.GetLodBias();
         XXHASH_VERIFY(XXH64_update(m_hashState, &lodBias, sizeof(lodBias)));
         const auto compareMode = sampler.GetCompareMode();
         XXHASH_VERIFY(XXH64_update(m_hashState, &compareMode, sizeof(compareMode)));
-        const auto compareFunc = sampler.GetSamplerCompareFunc();
+        const auto compareFunc = ResolveCompareFunc(sampler, texture);
         XXHASH_VERIFY(XXH64_update(m_hashState, &compareFunc, sizeof(compareFunc)));
+        const auto borderColor = ResolveVkBorderColor(sampler, texture);
+        XXHASH_VERIFY(XXH64_update(m_hashState, &borderColor, sizeof(borderColor)));
         return XXH64_digest(m_hashState);
     }
 
-    VkSampler VkSamplerManager::GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler) {
+    VkSampler VkSamplerManager::GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler,
-        const Uint64 key = BuildSamplerKey(sampler);
+                                                   const MG_State::GLState::ITextureObject& texture) {
+        const Uint64 key = BuildSamplerKey(sampler, texture);
         auto it = m_samplers.find(key);
         if (it != m_samplers.end()) {
             return it->second.handle;
@@ -82,10 +128,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         samplerInfo.anisotropyEnable = VK_FALSE;
         samplerInfo.maxAnisotropy = 1.0f;
         samplerInfo.compareEnable = sampler.GetCompareMode() == SamplerCompareMode::CompareToTexture ? VK_TRUE : VK_FALSE;
-        samplerInfo.compareOp = ToVkCompareOp(sampler.GetSamplerCompareFunc());
+        samplerInfo.compareOp = ToVkCompareOp(ResolveCompareFunc(sampler, texture));
-        samplerInfo.minLod = sampler.GetMinLod();
+        samplerInfo.maxLod = ResolveEffectiveMaxLod(sampler);
-        samplerInfo.maxLod = sampler.GetMaxLod();
+        samplerInfo.minLod = ResolveEffectiveMinLod(sampler, samplerInfo.maxLod);
-        samplerInfo.borderColor = VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
+        samplerInfo.borderColor = ResolveVkBorderColor(sampler, texture);
         samplerInfo.unnormalizedCoordinates = VK_FALSE;
 
         VkSampler vkSampler = VK_NULL_HANDLE;
@@ -153,4 +199,49 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             return VK_COMPARE_OP_ALWAYS;
         }
     }
+
+    SamplerCompareFunc VkSamplerManager::ResolveCompareFunc(const MG_State::GLState::SamplerObject& sampler,
+                                                            const MG_State::GLState::ITextureObject& texture) {
+        const auto compareFunc = sampler.GetSamplerCompareFunc();
+        if (sampler.GetCompareMode() == SamplerCompareMode::CompareToTexture &&
+            IsDepthTextureFormat(texture.GetFormat()) && compareFunc == SamplerCompareFunc::Always) {
+            return SamplerCompareFunc::LessEqual;
+        }
+
+        return compareFunc;
+    }
+
+    VkBorderColor VkSamplerManager::ResolveVkBorderColor(const MG_State::GLState::SamplerObject& sampler,
+                                                         const MG_State::GLState::ITextureObject& texture) {
+        if (!UsesBorderColor(sampler)) {
+            return VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
+        }
+
+        const auto& borderColor = texture.GetBorderColor();
+        const Bool isDepthTexture = IsDepthTextureFormat(texture.GetFormat());
+
+        if (isDepthTexture) {
+            if (NearlyEqual(borderColor.x(), 1.0f)) {
+                return VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
+            }
+            if (NearlyEqual(borderColor.x(), 0.0f)) {
+                return VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK;
+            }
+        }
+
+        const Bool rgbZero = NearlyEqual(borderColor.x(), 0.0f) && NearlyEqual(borderColor.y(), 0.0f) &&
+                             NearlyEqual(borderColor.z(), 0.0f);
+        if (rgbZero && NearlyEqual(borderColor.w(), 0.0f)) {
+            return VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
+        }
+        if (rgbZero && NearlyEqual(borderColor.w(), 1.0f)) {
+            return VK_BORDER_COLOR_FLOAT_OPAQUE_BLACK;
+        }
+        if (NearlyEqual(borderColor.x(), 1.0f) && NearlyEqual(borderColor.y(), 1.0f) &&
+            NearlyEqual(borderColor.z(), 1.0f) && NearlyEqual(borderColor.w(), 1.0f)) {
+            return VK_BORDER_COLOR_FLOAT_OPAQUE_WHITE;
+        }
+
+        return VK_BORDER_COLOR_FLOAT_TRANSPARENT_BLACK;
+    }
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VkSamplerManager.h

@@ -15,6 +15,7 @@
 
 namespace MobileGL::MG_State::GLState {
 class SamplerObject;
+class ITextureObject;
 }
 
 namespace MobileGL::MG_Backend::DirectVulkan {
@@ -28,7 +29,8 @@ public:
     Bool Initialize(const InitInfo& initInfo);
     void Shutdown();
 
-    VkSampler GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler);
+    VkSampler GetOrCreateSampler(const MG_State::GLState::SamplerObject& sampler,
+                                 const MG_State::GLState::ITextureObject& texture);
 
 private:
     struct SamplerCacheEntry {
@@ -37,11 +39,16 @@ private:
         Uint16 version = 0;
     };
 
-    Uint64 BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler) const;
+    Uint64 BuildSamplerKey(const MG_State::GLState::SamplerObject& sampler,
+                           const MG_State::GLState::ITextureObject& texture) const;
     static VkFilter ToVkFilter(SamplerFilterMode mode);
     static VkSamplerMipmapMode ToVkMipmapMode(SamplerMipmapMode mode);
     static VkSamplerAddressMode ToVkAddressMode(SamplerWrapMode mode);
     static VkCompareOp ToVkCompareOp(SamplerCompareFunc func);
+    static SamplerCompareFunc ResolveCompareFunc(const MG_State::GLState::SamplerObject& sampler,
+                                                 const MG_State::GLState::ITextureObject& texture);
+    static VkBorderColor ResolveVkBorderColor(const MG_State::GLState::SamplerObject& sampler,
+                                              const MG_State::GLState::ITextureObject& texture);
 
     VkDevice m_device = VK_NULL_HANDLE;
     const VulkanRendererConfig* m_config = nullptr;

MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureManager.h

@@ -26,46 +26,87 @@ public:
         VmaAllocator allocator = nullptr;
         VkCommandPool commandPool = VK_NULL_HANDLE;
         VkQueue graphicsQueue = VK_NULL_HANDLE;
+        Uint32 frameCount = 0;
     };
 
     struct TextureResource {
         VkImage image = VK_NULL_HANDLE;
         VmaAllocation allocation = nullptr;
-        VkImageView view = VK_NULL_HANDLE;
+        VkImageView fullView = VK_NULL_HANDLE;
+        VkImageView sampledView = VK_NULL_HANDLE;
+        Vector<VkImageView> perMipViews;
+        Vector<VkImageView> perMipSampledViews;
         VkImageLayout layout = VK_IMAGE_LAYOUT_UNDEFINED;
         VkExtent2D extent = {0, 0};
+        Uint32 depth = 1;
+        Uint32 arrayLayers = 1;
         Uint32 mipLevels = 1;
+        Uint32 sampledBaseMipLevel = 0;
+        Uint32 sampledLevelCount = 1;
         VkFormat format = VK_FORMAT_UNDEFINED;
         VkImageAspectFlags aspect = VK_IMAGE_ASPECT_NONE;
+        VkImageViewType viewType = VK_IMAGE_VIEW_TYPE_2D;
+        Uint16 syncedTextureParamsVersion = 0;
 
         TextureResource() = default;
         TextureResource(const TextureResource&) = delete;
         TextureResource(TextureResource&& that) noexcept {
             std::swap(this->image, that.image);
             std::swap(this->allocation, that.allocation);
-            std::swap(this->view, that.view);
+            std::swap(this->fullView, that.fullView);
+            std::swap(this->sampledView, that.sampledView);
+            std::swap(this->perMipViews, that.perMipViews);
+            std::swap(this->perMipSampledViews, that.perMipSampledViews);
             std::swap(this->layout, that.layout);
             std::swap(this->extent, that.extent);
+            std::swap(this->depth, that.depth);
+            std::swap(this->arrayLayers, that.arrayLayers);
             std::swap(this->mipLevels, that.mipLevels);
+            std::swap(this->sampledBaseMipLevel, that.sampledBaseMipLevel);
+            std::swap(this->sampledLevelCount, that.sampledLevelCount);
             std::swap(this->format, that.format);
             std::swap(this->aspect, that.aspect);
+            std::swap(this->viewType, that.viewType);
+            std::swap(this->syncedTextureParamsVersion, that.syncedTextureParamsVersion);
         }
 
         void Reset() {
-            if (view != VK_NULL_HANDLE) {
+            if (fullView != VK_NULL_HANDLE) {
-                vkDestroyImageView(s_device, view, nullptr);
+                vkDestroyImageView(s_device, fullView, nullptr);
+            }
+            if (sampledView != VK_NULL_HANDLE) {
+                vkDestroyImageView(s_device, sampledView, nullptr);
+            }
+            for (const auto attachmentView : perMipViews) {
+                if (attachmentView != VK_NULL_HANDLE) {
+                    vkDestroyImageView(s_device, attachmentView, nullptr);
+                }
+            }
+            for (const auto sampledView : perMipSampledViews) {
+                if (sampledView != VK_NULL_HANDLE) {
+                    vkDestroyImageView(s_device, sampledView, nullptr);
+                }
             }
             if (image != VK_NULL_HANDLE && allocation != nullptr) {
                 vmaDestroyImage(s_allocator, image, allocation);
             }
-            view = VK_NULL_HANDLE;
+            fullView = VK_NULL_HANDLE;
+            sampledView = VK_NULL_HANDLE;
+            perMipViews.clear();
+            perMipSampledViews.clear();
             image = VK_NULL_HANDLE;
             allocation = nullptr;
             layout = VK_IMAGE_LAYOUT_UNDEFINED;
             extent = {0, 0};
+            depth = 1;
+            arrayLayers = 1;
             mipLevels = 1;
+            sampledBaseMipLevel = 0;
+            sampledLevelCount = 1;
             format = VK_FORMAT_UNDEFINED;
             aspect = VK_IMAGE_ASPECT_NONE;
+            viewType = VK_IMAGE_VIEW_TYPE_2D;
+            syncedTextureParamsVersion = 0;
         }
 
         ~TextureResource() {
@@ -78,16 +119,28 @@ public:
 
     Bool Initialize(const InitInfo& initInfo);
     void Shutdown();
+    void BeginFrame(Uint32 frameIndex);
 
     TextureResource* SyncTextureAndGetDescriptor(
         MG_State::GLState::ITextureObject& texture);
+    VkImageView GetOrCreateViewAtMipLevel(MG_State::GLState::ITextureObject& texture, Uint32 mipLevel);
+    VkImageView GetOrCreateSampledViewAtMipLevel(MG_State::GLState::ITextureObject& texture, Uint32 mipLevel);
     void UpdateTrackedImageLayout(MG_State::GLState::ITextureObject* texture, VkImageLayout newLayout);
+    void UpdateTrackedImageLayoutAfterAttachmentWrite(VkCommandBuffer commandBuffer,
+                                                      MG_State::GLState::ITextureObject* texture,
+                                                      Uint32 writtenMipLevel,
+                                                      VkImageLayout newLayout);
     Bool TransitionTextureForSampling(VkCommandBuffer commandBuffer, MG_State::GLState::ITextureObject& texture);
+    Bool TransitionTextureForStorageImage(VkCommandBuffer commandBuffer, MG_State::GLState::ITextureObject& texture);
+
+    static VkImageAspectFlags ResolveSampledImageViewAspectMask(VkImageAspectFlags imageAspect);
 
     static Bool TransitionImageLayout(VkCommandBuffer commandBuffer, VkImage image, VkImageLayout& trackedLayout,
                                VkImageLayout newLayout, VkPipelineStageFlags srcStageMask,
                                VkPipelineStageFlags dstStageMask, VkAccessFlags srcAccessMask,
-                               VkAccessFlags dstAccessMask, VkImageAspectFlags aspectMask);
+                               VkAccessFlags dstAccessMask, VkImageAspectFlags aspectMask,
+                               Uint32 baseMipLevel = 0, Uint32 levelCount = 1,
+                               Uint32 layerCount = 1);
 
     SizeT CollectGarbage();
 private:
@@ -98,6 +151,11 @@ private:
                              TextureUploadTarget uploadTarget,
                              const IntVec3 &texelSize, SizeT byteSize, Uint32 mipLevels,
                              TextureResource &resource);
+    Bool SyncTextureViews(const MG_State::GLState::ITextureObject& texture, TextureResource& resource);
+    VkImageView CreateImageView(VkImage image, VkFormat format, VkImageAspectFlags aspect,
+                                VkImageViewType viewType, Uint32 baseMipLevel, Uint32 levelCount,
+                                Uint32 layerCount,
+                                const VkComponentMapping* components = nullptr) const;
     Bool UploadDirtyMipLevels(MG_State::GLState::TextureObjectMipmap &mipmapTexture,
                       TextureUploadTarget uploadTarget,
                       TextureResource &outResource);
@@ -107,16 +165,25 @@ private:
                                         SizeT& outByteSize,
                                         Uint32& outMipLevelCount);
     static Uint32 GetUploadMipLevelCount(const MG_State::GLState::TextureObjectMipmap& texture, TextureUploadTarget target);
+    static void ResolveViewMipRange(const MG_State::GLState::ITextureObject& texture, Uint32 mipLevels,
+                                    Uint32& outBaseMipLevel, Uint32& outLevelCount);
     static VkImageAspectFlags GetAspectMaskForFormat(VkFormat format);
+    void DeferResourceRelease(TextureResource&& resource);
+    void DeferViewRelease(VkImageView view);
+    void CollectDeferredReleases(Uint32 frameIndex);
+    void DestroyDeferredReleases();
 
     VkDevice m_device = VK_NULL_HANDLE;
     VkPhysicalDevice m_physicalDevice = VK_NULL_HANDLE;
     VmaAllocator m_allocator = nullptr;
     VkCommandPool m_commandPool = VK_NULL_HANDLE;
     VkQueue m_graphicsQueue = VK_NULL_HANDLE;
+    Uint32 m_currentFrameIndex = 0;
 
     Uint8 m_gcCounter = 0;
     UnorderedMap<MG_State::GLState::ITextureObject*, WeakPtr<MG_State::GLState::ITextureObject>> m_aliveObjects;
     UnorderedMap<MG_State::GLState::ITextureObject*, TextureResource> m_textureResources;
+    Vector<Vector<TextureResource>> m_deferredReleases;
+    Vector<Vector<VkImageView>> m_deferredViewReleases;
 };
 } // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.h

@@ -12,9 +12,10 @@
 #include "PipelineFactory.h"
 #include "ProgramFactory.h"
 #include "SwapchainObject.h"
-#include "UniformDescriptorBinder.h"
+#include "UniformManager.h"
 #include "VertexInputStateFactory.h"
 #include "VkBufferObject.h"
+#include "VkBufferManager.h"
 #include "VkClearManager.h"
 #include "VkRenderPassManager.h"
 #include "VkSamplerManager.h"
@@ -34,25 +35,55 @@ namespace MobileGL::MG_State::GLState {
 
 namespace MobileGL::MG_Backend::DirectVulkan {
     enum class DrawSetupAspect: Uint8 {
-        FramebufferObject = 1 << 0,
+        FramebufferObject  = 1 << 0,
-        VertexArrayObject = 1 << 1,
+        VertexArrayObject  = 1 << 1,
-        UniformBuffer     = 1 << 2,
+        UniformBuffer      = 1 << 2,
-        VertexBuffer      = 1 << 3,
+        VertexBuffer       = 1 << 3,
-        IndexBuffer       = 1 << 4,
+        IndexBuffer        = 1 << 4,
-        Viewport          = 1 << 5,
+        IndirectDrawBuffer = 1 << 5,
-        Scissor           = 1 << 6,
+        Viewport           = 1 << 6,
+        Scissor            = 1 << 7,
     };
 
-    struct DrawArrayCmd {
+    struct DrawCmdParam {
+        Uint32 vertexCount = 0;
+        Uint32 instanceCount = 1;
+        Uint32 firstVertex = 0;
+        Uint32 firstInstance = 0;
+    };
+
+    struct DrawIndexedCmdParam {
+        Uint32 indexCount = 0;
+        Uint32 instanceCount = 1;
+        Uint32 firstIndex = 0;
+        Int32 vertexOffset = 0;
+        Int32 firstInstance = 0;
+    };
+
+    struct DrawCmd {
         GLenum mode = GL_TRIANGLES;
-        GLint first = 0;
+        DrawCmdParam params;
-        GLsizei count = 0;
     };
 
-    struct DrawElementCmd: public DrawArrayCmd {
+    struct IndexBufferView {
         GLenum indexType = GL_UNSIGNED_SHORT;
         SizeT indexByteOffset = 0;
-        GLint baseVertex = 0;
+        SizeT indexByteSize = 0;
+    };
+
+    struct DrawIndexedCmd {
+        GLenum mode = GL_TRIANGLES;
+        IndexBufferView indexBufferView;
+
+        DrawIndexedCmdParam params;
+    };
+
+    struct MultiDrawIndexedCmd {
+        GLenum mode = GL_TRIANGLES;
+        IndexBufferView indexBufferView;
+
+        Uint32 drawCount = 0;
+        DrawIndexedCmdParam* pParams = nullptr;
     };
 
     struct QueueFamilyIndices {
@@ -78,20 +109,50 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         void Initialize();
         void Shutdown();
 
-        void SetupDraw(FrameContext::FrameData& frame, GLenum mode, Flags<DrawSetupAspect> aspects);
+        Bool SetupDraw(FrameContext::FrameData& frame, GLenum mode, Flags<DrawSetupAspect> aspects,
+                       const DrawCmdParam& drawParams,
+                       const IndexBufferView* pIndexBufferView = nullptr);
         void ClearAttachmentsOnActiveRenderPass(VkCommandBuffer commandBuffer,
                                                 const RenderPassEntry& compatibleRenderPassEntry);
 
         void Clear(GLbitfield mask);
+        void ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+        void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value);
+        void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value);
+        void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value);
+        void ClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                     GLenum buffer, GLint drawbuffer, const GLfloat* value);
+        void ClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                     GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
         void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
                              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
                              GLbitfield mask, GLenum filter);
-        void DrawArrays(const DrawArrayCmd& payload);
+        void BlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFbo,
-        void DrawElements(const DrawElementCmd& payload);
+                                  const SharedPtr<MG_State::GLState::FramebufferObject>& drawFbo,
-        void MultiDrawElements(const Vector<DrawElementCmd>& payloads);
+                                  GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                                  GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                                  GLbitfield mask, GLenum filter);
+        void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset,
+                       GLint x, GLint y, GLsizei width, GLsizei height);
+        void GenerateMipmap(GLenum target);
+        void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels);
+        void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+        void GetTextureImage(const SharedPtr<MG_State::GLState::ITextureObject>& texture,
+                             TextureUploadTarget uploadTarget, GLint level, GLenum format, GLenum type,
+                             GLsizei bufSize, GLvoid* pixels);
+        void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+        void DispatchComputeIndirect(GLintptr indirect);
+        void MemoryBarrier(GLbitfield barriers);
+        static VkMemoryBarrier BuildMemoryBarrierForGlBarriers(GLbitfield barriers);
+        void DrawArrays(const DrawCmd& payload);
+        void DrawElements(const DrawIndexedCmd& payload);
+        void MultiDrawElements(const MultiDrawIndexedCmd& payloads);
+        void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                            GLsizei maxdrawcount, GLsizei stride);
         void Present();
 
         const PhysicalDevice& GetPhysicalDevice() const;
+        VkInstance GetInstance() const;
         Bool IsDrawIndirectCountExtensionEnabled() const;
 
         void RecreateSwapchain();
@@ -114,7 +175,31 @@ namespace MobileGL::MG_Backend::DirectVulkan {
             Uint32 samplerBinding = 0;
         };
 
+        struct DepthMipmapResources {
+            SharedPtr<MG_State::GLState::ProgramObject> program;
+            Int srcRectLocation = -1;
+            Int dstRectLocation = -1;
+            Int surfaceTransformLocation = -1;
+            Int srcTexelSizeLocation = -1;
+            Uint32 samplerBinding = 0;
+        };
+
+        struct DeferredDepthMipmapCleanup {
+            Vector<VkImageView> imageViews;
+            Vector<VkFramebuffer> framebuffers;
+            Vector<VkRenderPass> renderPasses;
+            Vector<VkPipeline> pipelines;
+        };
+
+        void QueueClearBufferPayload(GLenum buffer, GLint drawbuffer, const ClearAttachmentPayload& clearPayload);
+        void QueueClearBufferPayloadForFramebuffer(const MG_State::GLState::FramebufferObject& framebuffer,
+                                                  GLenum buffer, GLint drawbuffer,
+                                                  const ClearAttachmentPayload& clearPayload);
+
         NativeWindowType m_window = 0;
+        void* m_platformDisplay = nullptr;
+        void* m_platformLibrary = nullptr;
+        void* m_platformCloseDisplay = nullptr;
         VulkanRendererConfig m_config;
 
         // Vulkan objects
@@ -131,32 +216,40 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         VkQueue m_graphicsQueue = VK_NULL_HANDLE;
         VkQueue m_presentQueue = VK_NULL_HANDLE;
         Bool m_drawIndirectCountExtensionEnabled = false;
+        Bool m_indexTypeUint8ExtensionEnabled = false;
         using PFNDrawIndexedIndirectCountFunc = void(VKAPI_PTR*)(VkCommandBuffer commandBuffer, VkBuffer buffer,
                                                                  VkDeviceSize offset, VkBuffer countBuffer,
                                                                  VkDeviceSize countBufferOffset, Uint32 maxDrawCount,
                                                                  Uint32 stride);
-        PFNDrawIndexedIndirectCountFunc m_cmdDrawIndexedIndirectCount = nullptr;
+        static inline PFNDrawIndexedIndirectCountFunc s_vkCmdDrawIndexedIndirectCount = nullptr;
 
         VkCommandPool m_commandPool = VK_NULL_HANDLE;
 
-        Vector<VkBufferObject> m_frameVertexUploadBuffers;
+        struct TransientBufferSliceCacheEntry {
-        Vector<VkDeviceSize> m_frameVertexUploadHeads;
+            BufferSlice slice;
-        Vector<VkBufferObject> m_frameIndexUploadBuffers;
+            Uint64 changeSerial = 0;
-        Vector<VkDeviceSize> m_frameIndexUploadHeads;
+            SizeT size = 0;
-        Vector<Vector<VkBufferObject>> m_deferredBufferReleases;
+        };
+
+        VkBufferManager m_bufferManager;
+        UnorderedMap<const MG_State::GLState::BufferObject*, TransientBufferSliceCacheEntry>
+            m_transientVertexIndexBufferSlicesThisFrame;
 
         Uint m_imageIndexAcquired = 0;
         FrameContext m_frameContext;
 
         UniquePtr<PipelineFactory> m_pipelineFactory;
+        UnorderedMap<ProgramFactory::HashType, VkPipeline> m_computePipelines;
         UniquePtr<ProgramFactory> m_programFactory;
-        UniquePtr<UniformDescriptorBinder> m_uniformDescriptorBinder;
+        UniquePtr<UniformManager> m_uniformManager;
         UniquePtr<VertexInputStateFactory> m_vertexInputStateFactory;
         UniquePtr<VkClearManager> m_clearManager;
         UniquePtr<VkRenderPassManager> m_renderPassManager;
         UniquePtr<VkTextureManager> m_textureManager;
         UniquePtr<VkSamplerManager> m_samplerManager;
         BlitResources m_blitResources;
+        DepthMipmapResources m_depthMipmapResources;
+        Vector<DeferredDepthMipmapCleanup> m_deferredDepthMipmapCleanup;
 
         void CreateInstance();
         VkResult SetupDebugMessenger();
@@ -169,21 +262,28 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         void DestroyAllocator();
         void CreateSwapchain();
         void CreateCommandPool();
-        void CreateFrameContexts();
 
         VkPipeline GetOrCreatePipeline(
             GLenum mode,
             const MG_State::GLState::ProgramObject& program,
+            const ProgramFactory::VkProgramObject& programObj,
+            ProgramFactory::CompileOptionFlags transformFlags,
             const MG_State::GLState::VertexArrayObject& vao,
             const RenderPassEntry& renderPassEntry);
+        VkPipeline GetOrCreateComputePipeline(const ProgramFactory::VkProgramObject& programObj);
+        void DestroyComputePipelines();
 
-        void DeferDestroyBuffer(VkBufferObject& buffer);
+        Bool UploadAndBindVertexBuffers(VkCommandBuffer commandBuffer, const MG_State::GLState::VertexArrayObject& vao,
-        void CollectDeferredBufferReleases(Uint32 frameIndex);
+                                        const DrawCmdParam& drawParams);
-        Bool EnsureFrameUploadBufferCapacity(Uint32 frameIndex, Bool isIndexBuffer, VkDeviceSize requiredEndOffset,
+        Bool UploadAndBindIndexBuffer(FrameContext::FrameData& frame,
-                                             VkDeviceSize minCapacity, VkBufferUsageFlags usage);
+                                     const MG_State::GLState::VertexArrayObject& vao,
-        Bool UploadAndBindVertexStreams(VkCommandBuffer commandBuffer, const MG_State::GLState::VertexArrayObject& vao);
+                                      const IndexBufferView* pIndexBufferView = nullptr);
         Bool InitializeBlitResources();
+        Bool InitializeDepthMipmapResources();
         void ShutdownBlitResources();
+        void ShutdownDepthMipmapResources();
+        void CollectDeferredDepthMipmapCleanup(Uint32 frameIndex);
+        void DestroyDeferredDepthMipmapCleanup();
         Bool TryBlitToDefaultFramebufferWithShader(FrameContext::FrameData& frame,
                                                    MG_State::GLState::FramebufferObject& readFbo,
                                                    MG_State::GLState::FramebufferObject& drawFbo,
@@ -193,6 +293,15 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         Bool MaterializePendingClearForTexture(VkCommandBuffer commandBuffer,
                                                MG_State::GLState::ITextureObject& texture);
         VkPipeline GetOrCreateBlitPipeline(const RenderPassEntry& renderPassEntry);
+        Bool GenerateDepthMipmapWithShader(FrameContext::FrameData& frame,
+                                           MG_State::GLState::ITextureObject& texture,
+                                           VkTextureManager::TextureResource& resource,
+                                           Uint32 baseMipLevel,
+                                           Uint32 generateMipLevelCount,
+                                           const IntVec3& storageBaseTexelSize,
+                                           VkImageLayout originalLayout,
+                                           VkImageLayout finalLayout);
+        Bool SubmitReadbackCommandsAndWait(FrameContext::FrameData& frame);
 
         void ShutdownSwapchain();
 
@@ -216,8 +325,6 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         static Bool GetMoreCapablePhysicalDevice(VkPhysicalDevice newVkDevice, VkSurfaceKHR surface,
                                                  const PhysicalDevice& compareWithDevice,
                                                  PhysicalDevice& outBetterDevice);
-        static Uint64 BuildPendingClearKey(Uint drawFboExternalIndex, Bool targetsDefaultFramebuffer);
-        static constexpr VkDynamicState s_dynamicStates[] = {VK_DYNAMIC_STATE_VIEWPORT, VK_DYNAMIC_STATE_SCISSOR};
         static constexpr const char* s_validationLayerNames[] = {"VK_LAYER_KHRONOS_validation"};
         static constexpr const char* s_deviceExtensionNames[] = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
         static Bool CheckValidationLayerSupport();

MobileGL/MG_Backend/DirectVulkan/VulkanRendererConfig.h

@@ -13,8 +13,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
     struct VulkanRendererConfig {
         Uint32 MaxFramesInFlight = 2;
         String AppName = "MobileGL-VulkanRenderer";
-        Version Version = MG_Config::CoreVersion;
+        MobileGL::Version Version = MG_Config::CoreVersion;
         Uint64 CacheVersion = MG_Config::CacheVersion;
+#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
         Bool EnableValidationLayers = true;
+#else
+        Bool EnableValidationLayers = false;
+#endif
     };
-} // namespace MobileGL::MG_Backend::DirectVulkan
+} // namespace MobileGL::MG_Backend::DirectVulkan

MobileGL/MG_Impl/EGLImpl/EGLImpl.cpp

@@ -34,11 +34,25 @@ namespace MobileGL::MG_Impl::EGLImpl {
         MG_Backend::WindowBackend DetectWindowBackend() {
 #if defined(ANDROID) || defined(__ANDROID__)
             return MG_Backend::WindowBackend::Android;
+#elif defined(__linux__)
+            return MG_Backend::WindowBackend::X11;
 #else
             return MG_Backend::WindowBackend::Unknown;
 #endif
         }
 
+        EGLint GetAttribValue(const EGLint* attribList, EGLint attrib, EGLint defaultValue) {
+            if (!attribList) {
+                return defaultValue;
+            }
+            for (SizeT i = 0; attribList[i] != EGL_NONE; i += 2) {
+                if (attribList[i] == attrib) {
+                    return attribList[i + 1];
+                }
+            }
+            return defaultValue;
+        }
+
         template <typename NativeType>
         Bool IsNullNativeHandle(NativeType nativeHandle) {
             if constexpr (std::is_pointer_v<NativeType>) {
@@ -230,7 +244,13 @@ namespace MobileGL::MG_Impl::EGLImpl {
         if (!state) {
             return EGL_FALSE;
         }
-        return state->TerminateDisplay(dpy) ? EGL_TRUE : EGL_FALSE;
+        if (!state->TerminateDisplay(dpy)) {
+            return EGL_FALSE;
+        }
+        if (auto* backendObject = MG_Backend::pActiveBackendObject.get()) {
+            backendObject->ReleaseEGLResources();
+        }
+        return EGL_TRUE;
     }
 
     EGLBoolean ReleaseThread() {
@@ -330,7 +350,24 @@ namespace MobileGL::MG_Impl::EGLImpl {
         if (!state) {
             return EGL_NO_SURFACE;
         }
-        return state->CreatePbufferSurface(dpy, config, attrib_list);
+        const EGLint width = GetAttribValue(attrib_list, EGL_WIDTH, 1);
+        const EGLint height = GetAttribValue(attrib_list, EGL_HEIGHT, 1);
+        EGLSurface surface = state->CreatePbufferSurface(dpy, config, attrib_list);
+        if (surface == EGL_NO_SURFACE) {
+            return EGL_NO_SURFACE;
+        }
+
+        auto* backendObject = GetBackendObject(state);
+        if (!backendObject) {
+            return EGL_NO_SURFACE;
+        }
+        if (!backendObject->CreateEGLPbufferSurface(width, height)) {
+            state->DestroySurface(dpy, surface);
+            state->SetError(EGL_BAD_ALLOC);
+            return EGL_NO_SURFACE;
+        }
+
+        return surface;
     }
 
     EGLBoolean BindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer) {

MobileGL/MG_Impl/GLImpl/Buffer/GL_Buffer.h

@@ -12,12 +12,31 @@
 namespace MobileGL::MG_Impl::GLImpl {
     /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
     void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params);
+    void GetBufferParameteri64v(GLenum target, GLenum pname, GLint64* params);
+    void GetBufferPointerv(GLenum target, GLenum pname, void** params);
     GLboolean IsBuffer(GLuint buffer);
     void DeleteBuffers(GLsizei n, const GLuint* buffers);
     void FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);
     GLboolean UnmapBuffer(GLenum target);
     void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
     void* MapBuffer(GLenum target, GLenum access);
+    void BufferStorage(GLenum target, GLsizeiptr size, const void* data, GLbitfield flags);
+    void CreateBuffers(GLsizei n, GLuint* buffers);
+    void NamedBufferStorage(GLuint buffer, GLsizeiptr size, const void* data, GLbitfield flags);
+    void NamedBufferData(GLuint buffer, GLsizeiptr size, const void* data, GLenum usage);
+    void NamedBufferSubData(GLuint buffer, GLintptr offset, GLsizeiptr size, const void* data);
+    void CopyNamedBufferSubData(GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset,
+                                GLsizeiptr size);
+    void ClearNamedBufferData(GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void* data);
+    void ClearNamedBufferSubData(GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format,
+                                 GLenum type, const void* data);
+    void* MapNamedBuffer(GLuint buffer, GLenum access);
+    void* MapNamedBufferRange(GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access);
+    GLboolean UnmapNamedBuffer(GLuint buffer);
+    void FlushMappedNamedBufferRange(GLuint buffer, GLintptr offset, GLsizeiptr length);
+    void GetNamedBufferParameteriv(GLuint buffer, GLenum pname, GLint* params);
+    void GetNamedBufferParameteri64v(GLuint buffer, GLenum pname, GLint64* params);
+    void GetNamedBufferPointerv(GLuint buffer, GLenum pname, void** params);
     void CopyBufferSubData(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset,
                            GLsizeiptr size);
     void BufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const void* data);

MobileGL/MG_Impl/GLImpl/Drawing/GL_Drawing.cpp

@@ -73,6 +73,24 @@ namespace MobileGL::MG_Impl::GLImpl {
         MG_Backend::gBackendFunctionsTable.GL.MultiDrawArraysIndirect(mode, indirect, drawcount, stride);
     }
 
+    void MultiDrawElementsIndirectCount_Backend(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                                GLsizei maxdrawcount, GLsizei stride) {
+#ifdef TRACY_ENABLE
+        ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
+#endif
+        MG_Backend::gBackendFunctionsTable.GL.MultiDrawElementsIndirectCount(mode, type, indirect, drawcount,
+                                                                             maxdrawcount, stride);
+    }
+
+    void MultiDrawArraysIndirectCount_Backend(GLenum mode, const void* indirect, GLintptr drawcount,
+                                              GLsizei maxdrawcount, GLsizei stride) {
+#ifdef TRACY_ENABLE
+        ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
+#endif
+        MG_Backend::gBackendFunctionsTable.GL.MultiDrawArraysIndirectCount(mode, indirect, drawcount, maxdrawcount,
+                                                                           stride);
+    }
+
     void DrawRangeElementsBaseVertex_Backend(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                              const void* indices, GLint basevertex) {
 #ifdef TRACY_ENABLE
@@ -156,6 +174,52 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     /* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ) {
+        auto dispatchCompute = MG_Backend::gBackendFunctionsTable.GL.DispatchCompute;
+        if (!dispatchCompute) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Backend does not support compute dispatch."));
+            return;
+        }
+        dispatchCompute(numGroupsX, numGroupsY, numGroupsZ);
+    }
+
+    void DispatchComputeIndirect(GLintptr indirect) {
+        auto dispatchComputeIndirect = MG_Backend::gBackendFunctionsTable.GL.DispatchComputeIndirect;
+        if (!dispatchComputeIndirect) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support indirect compute dispatch."));
+            return;
+        }
+        dispatchComputeIndirect(indirect);
+    }
+
+    void MemoryBarrier(GLbitfield barriers) {
+        auto memoryBarrier = MG_Backend::gBackendFunctionsTable.GL.MemoryBarrier;
+        if (!memoryBarrier) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Backend does not support memory barriers."));
+            return;
+        }
+        memoryBarrier(barriers);
+    }
+
+    void MemoryBarrierByRegion(GLbitfield barriers) {
+        auto memoryBarrierByRegion = MG_Backend::gBackendFunctionsTable.GL.MemoryBarrierByRegion;
+        if (!memoryBarrierByRegion) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support regional memory barriers."));
+            return;
+        }
+        memoryBarrierByRegion(barriers);
+    }
+
     void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride) {
         MultiDrawElementsIndirect_Backend(mode, type, indirect, drawcount, stride);
     }
@@ -164,6 +228,32 @@ namespace MobileGL::MG_Impl::GLImpl {
         MultiDrawArraysIndirect_Backend(mode, indirect, drawcount, stride);
     }
 
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride) {
+        auto multiDrawElementsIndirectCount = MG_Backend::gBackendFunctionsTable.GL.MultiDrawElementsIndirectCount;
+        if (!multiDrawElementsIndirectCount) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support indirect-parameter indexed draws."));
+            return;
+        }
+        MultiDrawElementsIndirectCount_Backend(mode, type, indirect, drawcount, maxdrawcount, stride);
+    }
+
+    void MultiDrawArraysIndirectCount(GLenum mode, const void* indirect, GLintptr drawcount,
+                                      GLsizei maxdrawcount, GLsizei stride) {
+        auto multiDrawArraysIndirectCount = MG_Backend::gBackendFunctionsTable.GL.MultiDrawArraysIndirectCount;
+        if (!multiDrawArraysIndirectCount) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support indirect-parameter array draws."));
+            return;
+        }
+        MultiDrawArraysIndirectCount_Backend(mode, indirect, drawcount, maxdrawcount, stride);
+    }
+
     void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                      const void* indices, GLint basevertex) {
         DrawRangeElementsBaseVertex_Backend(mode, start, end, count, type, indices, basevertex);

MobileGL/MG_Impl/GLImpl/Drawing/GL_Drawing.h

@@ -11,8 +11,16 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+    void DispatchComputeIndirect(GLintptr indirect);
+    void MemoryBarrier(GLbitfield barriers);
+    void MemoryBarrierByRegion(GLbitfield barriers);
     void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride);
     void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride);
+    void MultiDrawArraysIndirectCount(GLenum mode, const void* indirect, GLintptr drawcount,
+                                      GLsizei maxdrawcount, GLsizei stride);
     void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
                                      const void* indices, GLint basevertex);
     void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);

MobileGL/MG_Impl/GLImpl/Exporting/Definitions.cpp

@@ -10,6 +10,7 @@
 #include "../Buffer/GL_Buffer.h"
 #include "../Getter/GL_Getter.h"
 #include "../Sampler/GL_Sampler.h"
+#include "../Sync/GL_Sync.h"
 #include "../Texture/GL_Texture.h"
 #include "../Drawing/GL_Drawing.h"
 #include "../Program/GL_Program.h"
@@ -17,42 +18,40 @@
 #include "../Framebuffer/GL_Framebuffer.h"
 #include "../VertexArray/GL_VertexArray.h"
 
-#define DECLARE_GL_FUNCTION_STUB_HEAD(type,name,...)                        \
+#define DECLARE_GL_FUNCTION_STUB_HEAD(type, name, ...) MOBILEGL_GL_API type gl##name(__VA_ARGS__) {
-MOBILEGL_GL_API type gl##name(__VA_ARGS__) {
 
-#define DECLARE_GL_FUNCTION_STUB_END(type,name,...)                         \
+#define DECLARE_GL_FUNCTION_STUB_END(type, name, ...)                                                                  \
-    MGLOG_W("Stub function: %s(...)", __FUNCTION__);                        \
+    MGLOG_W("Stub function: %s(...)", __FUNCTION__);                                                                   \
-    return (type)1;                                                         \
+    return (type)1;                                                                                                    \
-}
+    }
 
-#define DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(type,name,...)               \
+#define DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(type, name, ...)                                                        \
-    MGLOG_W("Stub function: %s(...)", __FUNCTION__);                        \
+    MGLOG_W("Stub function: %s(...)", __FUNCTION__);                                                                   \
-}
+    }
 
-#define DECLARE_GL_FUNCTION_HEAD(type,name,...)                             \
+#define DECLARE_GL_FUNCTION_HEAD(type, name, ...) MOBILEGL_GL_API type gl##name(__VA_ARGS__) {
-MOBILEGL_GL_API type gl##name(__VA_ARGS__) {
 
 #ifdef TRACY_ENABLE
-    #define DECLARE_GL_FUNCTION_END(type,name,...)                              \
+#define DECLARE_GL_FUNCTION_END(type, name, ...)                                                                       \
-        ZoneScopedC(TRACY_ZONECOLOR_ENTRY);                                     \
+    ZoneScopedC(TRACY_ZONECOLOR_ENTRY);                                                                                \
-        MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                \
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                                                           \
-        return MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                    \
+    return MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                                                               \
     }
 
-    #define DECLARE_GL_FUNCTION_END_NO_RETURN(type,name,...)                    \
+#define DECLARE_GL_FUNCTION_END_NO_RETURN(type, name, ...)                                                             \
-        ZoneScopedC(TRACY_ZONECOLOR_ENTRY);                                     \
+    ZoneScopedC(TRACY_ZONECOLOR_ENTRY);                                                                                \
-        MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                \
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                                                           \
-        MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                           \
+    MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                                                                      \
     }
 #else
-    #define DECLARE_GL_FUNCTION_END(type,name,...)                              \
+#define DECLARE_GL_FUNCTION_END(type, name, ...)                                                                       \
-        MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                \
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                                                           \
-        return MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                    \
+    return MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                                                               \
     }
 
-    #define DECLARE_GL_FUNCTION_END_NO_RETURN(type,name,...)                    \
+#define DECLARE_GL_FUNCTION_END_NO_RETURN(type, name, ...)                                                             \
-        MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                \
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);                                                           \
-        MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                           \
+    MobileGL::MG_Impl::GLImpl::name(__VA_ARGS__);                                                                      \
     }
 #endif
 
@@ -69,7 +68,7 @@ DECLARE_GL_FUNCTION_HEAD(void, BindRenderbuffer, GLenum target, GLuint renderbuf
 DECLARE_GL_FUNCTION_HEAD(void, BindTexture, GLenum target, GLuint texture) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindTexture, target, texture)
 DECLARE_GL_FUNCTION_HEAD(void, BlendColor, GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendColor, red, green, blue, alpha)
 DECLARE_GL_FUNCTION_HEAD(void, BlendEquation, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquation, mode)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendEquationSeparate, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendEquationSeparate, modeRGB, modeAlpha)
+DECLARE_GL_FUNCTION_HEAD(void, BlendEquationSeparate, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquationSeparate, modeRGB, modeAlpha)
 DECLARE_GL_FUNCTION_HEAD(void, BlendFunc, GLenum sfactor, GLenum dfactor) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFunc, sfactor, dfactor)
 DECLARE_GL_FUNCTION_HEAD(void, BlendFuncSeparate, GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFuncSeparate, sfactorRGB, dfactorRGB, sfactorAlpha, dfactorAlpha)
 DECLARE_GL_FUNCTION_HEAD(void, BufferData, GLenum target, GLsizeiptr size, const void* data, GLenum usage) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BufferData, target, size, data, usage)
@@ -104,8 +103,8 @@ DECLARE_GL_FUNCTION_HEAD(void, DrawArrays, GLenum mode, GLint first, GLsizei cou
 DECLARE_GL_FUNCTION_HEAD(void, DrawElements, GLenum mode, GLsizei count, GLenum type, const void* indices) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawElements, mode, count, type, indices)
 DECLARE_GL_FUNCTION_HEAD(void, Enable, GLenum cap) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Enable, cap)
 DECLARE_GL_FUNCTION_HEAD(void, EnableVertexAttribArray, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, EnableVertexAttribArray, index)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Finish) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Finish)
+MOBILEGL_GL_API void glFinish() { MGLOG_D("Implementing function: %s(...)", __FUNCTION__); }
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Flush) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Flush)
+MOBILEGL_GL_API void glFlush() { MGLOG_D("Implementing function: %s(...)", __FUNCTION__); }
 DECLARE_GL_FUNCTION_HEAD(void, FramebufferRenderbuffer, GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FramebufferRenderbuffer, target, attachment, renderbuffertarget, renderbuffer)
 DECLARE_GL_FUNCTION_HEAD(void, FramebufferTexture2D, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FramebufferTexture2D, target, attachment, textarget, texture, level)
 DECLARE_GL_FUNCTION_HEAD(void, FrontFace, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FrontFace, mode)
@@ -216,7 +215,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, EndQuery, GLenum target) DECLARE_GL_FUNCTION
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryiv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryiv, target, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryObjectuiv, GLuint id, GLenum pname, GLuint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryObjectuiv, id, pname, params)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, UnmapBuffer, GLenum target) DECLARE_GL_FUNCTION_END(GLboolean, UnmapBuffer, target)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBufferPointerv, GLenum target, GLenum pname, void** params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBufferPointerv, target, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetBufferPointerv, GLenum target, GLenum pname, void** params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetBufferPointerv, target, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, DrawBuffers, GLsizei n, const GLenum* bufs) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawBuffers, n, bufs)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, UniformMatrix2x3fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UniformMatrix2x3fv, location, count, transpose, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, UniformMatrix3x2fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UniformMatrix3x2fv, location, count, transpose, value)
@@ -233,7 +232,7 @@ DECLARE_GL_FUNCTION_HEAD(void, BindVertexArray, GLuint array) DECLARE_GL_FUNCTIO
 DECLARE_GL_FUNCTION_HEAD(void, DeleteVertexArrays, GLsizei n, const GLuint* arrays) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteVertexArrays, n, arrays)
 DECLARE_GL_FUNCTION_HEAD(void, GenVertexArrays, GLsizei n, GLuint* arrays) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenVertexArrays, n, arrays)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsVertexArray, GLuint array) DECLARE_GL_FUNCTION_END(GLboolean, IsVertexArray, array)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetIntegeri_v, GLenum target, GLuint index, GLint* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetIntegeri_v, target, index, data)
+DECLARE_GL_FUNCTION_HEAD(void, GetIntegeri_v, GLenum target, GLuint index, GLint* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetIntegeri_v, target, index, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, BeginTransformFeedback, GLenum primitiveMode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BeginTransformFeedback, primitiveMode)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, EndTransformFeedback) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, EndTransformFeedback)
 DECLARE_GL_FUNCTION_HEAD(void, BindBufferRange, GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindBufferRange, target, index, buffer, offset, size)
@@ -249,11 +248,11 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribI4iv, GLuint index, const GLint*
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribI4uiv, GLuint index, const GLuint* v) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribI4uiv, index, v)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetUniformuiv, GLuint program, GLint location, GLuint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetUniformuiv, program, location, params)
 DECLARE_GL_FUNCTION_HEAD(GLint, GetFragDataLocation, GLuint program, const GLchar* name) DECLARE_GL_FUNCTION_END(GLint, GetFragDataLocation, program, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1ui, GLint location, GLuint v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1ui, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1ui, GLint location, GLuint v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1ui, location, v0)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2ui, GLint location, GLuint v0, GLuint v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2ui, location, v0, v1)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3ui, GLint location, GLuint v0, GLuint v1, GLuint v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3ui, location, v0, v1, v2)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4ui, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4ui, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1uiv, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1uiv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1uiv, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1uiv, location, count, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2uiv, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2uiv, location, count, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3uiv, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3uiv, location, count, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4uiv, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4uiv, location, count, value)
@@ -270,15 +269,15 @@ DECLARE_GL_FUNCTION_HEAD(void, GetActiveUniformBlockName, GLuint program, GLuint
 DECLARE_GL_FUNCTION_HEAD(void, UniformBlockBinding, GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformBlockBinding, program, uniformBlockIndex, uniformBlockBinding)
 DECLARE_GL_FUNCTION_HEAD(void, DrawArraysInstanced, GLenum mode, GLint first, GLsizei count, GLsizei instancecount) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawArraysInstanced, mode, first, count, instancecount)
 DECLARE_GL_FUNCTION_HEAD(void, DrawElementsInstanced, GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawElementsInstanced, mode, count, type, indices, instancecount)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLsync, FenceSync, GLenum condition, GLbitfield flags) DECLARE_GL_FUNCTION_STUB_END(GLsync, FenceSync, condition, flags)
+DECLARE_GL_FUNCTION_HEAD(GLsync, FenceSync, GLenum condition, GLbitfield flags) DECLARE_GL_FUNCTION_END(GLsync, FenceSync, condition, flags)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, IsSync, GLsync sync) DECLARE_GL_FUNCTION_STUB_END(GLboolean, IsSync, sync)
+DECLARE_GL_FUNCTION_HEAD(GLboolean, IsSync, GLsync sync) DECLARE_GL_FUNCTION_END(GLboolean, IsSync, sync)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DeleteSync, GLsync sync) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DeleteSync, sync)
+DECLARE_GL_FUNCTION_HEAD(void, DeleteSync, GLsync sync) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteSync, sync)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLenum, ClientWaitSync, GLsync sync, GLbitfield flags, GLuint64 timeout) DECLARE_GL_FUNCTION_STUB_END(GLenum, ClientWaitSync, sync, flags, timeout)
+DECLARE_GL_FUNCTION_HEAD(GLenum, ClientWaitSync, GLsync sync, GLbitfield flags, GLuint64 timeout) DECLARE_GL_FUNCTION_END(GLenum, ClientWaitSync, sync, flags, timeout)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, WaitSync, GLsync sync, GLbitfield flags, GLuint64 timeout) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, WaitSync, sync, flags, timeout)
+DECLARE_GL_FUNCTION_HEAD(void, WaitSync, GLsync sync, GLbitfield flags, GLuint64 timeout) DECLARE_GL_FUNCTION_END_NO_RETURN(void, WaitSync, sync, flags, timeout)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetInteger64v, GLenum pname, GLint64* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetInteger64v, pname, data)
+DECLARE_GL_FUNCTION_HEAD(void, GetInteger64v, GLenum pname, GLint64* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetInteger64v, pname, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetSynciv, GLsync sync, GLenum pname, GLsizei bufSize, GLsizei* length, GLint* values) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetSynciv, sync, pname, bufSize, length, values)
+DECLARE_GL_FUNCTION_HEAD(void, GetSynciv, GLsync sync, GLenum pname, GLsizei bufSize, GLsizei* length, GLint* values) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetSynciv, sync, pname, bufSize, length, values)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetInteger64i_v, GLenum target, GLuint index, GLint64* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetInteger64i_v, target, index, data)
+DECLARE_GL_FUNCTION_HEAD(void, GetInteger64i_v, GLenum target, GLuint index, GLint64* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetInteger64i_v, target, index, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBufferParameteri64v, GLenum target, GLenum pname, GLint64* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBufferParameteri64v, target, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetBufferParameteri64v, GLenum target, GLenum pname, GLint64* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetBufferParameteri64v, target, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, GenSamplers, GLsizei count, GLuint* samplers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenSamplers, count, samplers)
 DECLARE_GL_FUNCTION_HEAD(void, DeleteSamplers, GLsizei count, const GLuint* samplers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteSamplers, count, samplers)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsSampler, GLuint sampler) DECLARE_GL_FUNCTION_END(GLboolean, IsSampler, sampler)
@@ -304,17 +303,17 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, InvalidateSubFramebuffer, GLenum target, GLs
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexStorage2D, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexStorage2D, target, levels, internalformat, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexStorage3D, GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexStorage3D, target, levels, internalformat, width, height, depth)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetInternalformativ, GLenum target, GLenum internalformat, GLenum pname, GLsizei bufSize, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetInternalformativ, target, internalformat, pname, bufSize, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DispatchCompute, GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DispatchCompute, num_groups_x, num_groups_y, num_groups_z)
+DECLARE_GL_FUNCTION_HEAD(void, DispatchCompute, GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DispatchCompute, num_groups_x, num_groups_y, num_groups_z)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DispatchComputeIndirect, GLintptr indirect) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DispatchComputeIndirect, indirect)
+DECLARE_GL_FUNCTION_HEAD(void, DispatchComputeIndirect, GLintptr indirect) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DispatchComputeIndirect, indirect)
 DECLARE_GL_FUNCTION_HEAD(void, DrawArraysIndirect, GLenum mode, const void* indirect) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawArraysIndirect, mode, indirect)
 DECLARE_GL_FUNCTION_HEAD(void, DrawElementsIndirect, GLenum mode, GLenum type, const void* indirect) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawElementsIndirect, mode, type, indirect)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, FramebufferParameteri, GLenum target, GLenum pname, GLint param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, FramebufferParameteri, target, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetFramebufferParameteriv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetFramebufferParameteriv, target, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramInterfaceiv, GLuint program, GLenum programInterface, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramInterfaceiv, program, programInterface, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetProgramInterfaceiv, GLuint program, GLenum programInterface, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetProgramInterfaceiv, program, programInterface, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLuint, GetProgramResourceIndex, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END(GLuint, GetProgramResourceIndex, program, programInterface, name)
+DECLARE_GL_FUNCTION_HEAD(GLuint, GetProgramResourceIndex, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_END(GLuint, GetProgramResourceIndex, program, programInterface, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramResourceName, GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei* length, GLchar* name) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramResourceName, program, programInterface, index, bufSize, length, name)
+DECLARE_GL_FUNCTION_HEAD(void, GetProgramResourceName, GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei* length, GLchar* name) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetProgramResourceName, program, programInterface, index, bufSize, length, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramResourceiv, GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramResourceiv, program, programInterface, index, propCount, props, bufSize, length, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetProgramResourceiv, GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetProgramResourceiv, program, programInterface, index, propCount, props, bufSize, length, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLint, GetProgramResourceLocation, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END(GLint, GetProgramResourceLocation, program, programInterface, name)
+DECLARE_GL_FUNCTION_HEAD(GLint, GetProgramResourceLocation, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_END(GLint, GetProgramResourceLocation, program, programInterface, name)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, UseProgramStages, GLuint pipeline, GLbitfield stages, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UseProgramStages, pipeline, stages, program)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ActiveShaderProgram, GLuint pipeline, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ActiveShaderProgram, pipeline, program)
 DECLARE_GL_FUNCTION_STUB_HEAD(GLuint, CreateShaderProgramv, GLenum type, GLsizei count, const GLchar* const* strings) DECLARE_GL_FUNCTION_STUB_END(GLuint, CreateShaderProgramv, type, count, strings)
@@ -323,33 +322,33 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, DeleteProgramPipelines, GLsizei n, const GLu
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GenProgramPipelines, GLsizei n, GLuint* pipelines) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GenProgramPipelines, n, pipelines)
 DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, IsProgramPipeline, GLuint pipeline) DECLARE_GL_FUNCTION_STUB_END(GLboolean, IsProgramPipeline, pipeline)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramPipelineiv, GLuint pipeline, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramPipelineiv, pipeline, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1i, GLuint program, GLint location, GLint v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1i, program, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1i, GLuint program, GLint location, GLint v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1i, program, location, v0)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2i, GLuint program, GLint location, GLint v0, GLint v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2i, program, location, v0, v1)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2i, GLuint program, GLint location, GLint v0, GLint v1) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2i, program, location, v0, v1)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3i, GLuint program, GLint location, GLint v0, GLint v1, GLint v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3i, program, location, v0, v1, v2)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3i, GLuint program, GLint location, GLint v0, GLint v1, GLint v2) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3i, program, location, v0, v1, v2)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4i, GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4i, program, location, v0, v1, v2, v3)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4i, GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4i, program, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1ui, GLuint program, GLint location, GLuint v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1ui, program, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1ui, GLuint program, GLint location, GLuint v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1ui, program, location, v0)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2ui, GLuint program, GLint location, GLuint v0, GLuint v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2ui, program, location, v0, v1)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2ui, GLuint program, GLint location, GLuint v0, GLuint v1) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2ui, program, location, v0, v1)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3ui, GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3ui, program, location, v0, v1, v2)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3ui, GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3ui, program, location, v0, v1, v2)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4ui, GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4ui, program, location, v0, v1, v2, v3)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4ui, GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4ui, program, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1f, GLuint program, GLint location, GLfloat v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1f, program, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1f, GLuint program, GLint location, GLfloat v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1f, program, location, v0)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2f, GLuint program, GLint location, GLfloat v0, GLfloat v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2f, program, location, v0, v1)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2f, GLuint program, GLint location, GLfloat v0, GLfloat v1) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2f, program, location, v0, v1)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3f, GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3f, program, location, v0, v1, v2)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3f, GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3f, program, location, v0, v1, v2)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4f, GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4f, program, location, v0, v1, v2, v3)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4f, GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4f, program, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1iv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1iv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2iv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2iv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3iv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3iv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4iv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4iv, GLuint program, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4iv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1uiv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1uiv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2uiv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2uiv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3uiv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3uiv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4uiv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4uiv, GLuint program, GLint location, GLsizei count, const GLuint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4uiv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1fv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform1fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform1fv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform2fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform2fv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform2fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform2fv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform3fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform3fv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform3fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform3fv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform4fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform4fv, program, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniform4fv, GLuint program, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniform4fv, program, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix2fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix2fv, program, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniformMatrix2fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniformMatrix2fv, program, location, count, transpose, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix3fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix3fv, program, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniformMatrix3fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniformMatrix3fv, program, location, count, transpose, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix4fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix4fv, program, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, ProgramUniformMatrix4fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProgramUniformMatrix4fv, program, location, count, transpose, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix2x3fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix2x3fv, program, location, count, transpose, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix3x2fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix3x2fv, program, location, count, transpose, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix2x4fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix2x4fv, program, location, count, transpose, value)
@@ -358,10 +357,10 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix3x4fv, GLuint program, G
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniformMatrix4x3fv, GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniformMatrix4x3fv, program, location, count, transpose, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ValidateProgramPipeline, GLuint pipeline) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ValidateProgramPipeline, pipeline)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramPipelineInfoLog, GLuint pipeline, GLsizei bufSize, GLsizei* length, GLchar* infoLog) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramPipelineInfoLog, pipeline, bufSize, length, infoLog)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BindImageTexture, GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BindImageTexture, unit, texture, level, layered, layer, access, format)
+DECLARE_GL_FUNCTION_HEAD(void, BindImageTexture, GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindImageTexture, unit, texture, level, layered, layer, access, format)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBooleani_v, GLenum target, GLuint index, GLboolean* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBooleani_v, target, index, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MemoryBarrier, GLbitfield barriers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MemoryBarrier, barriers)
+DECLARE_GL_FUNCTION_HEAD(void, MemoryBarrier, GLbitfield barriers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MemoryBarrier, barriers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MemoryBarrierByRegion, GLbitfield barriers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MemoryBarrierByRegion, barriers)
+DECLARE_GL_FUNCTION_HEAD(void, MemoryBarrierByRegion, GLbitfield barriers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MemoryBarrierByRegion, barriers)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexStorage2DMultisample, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexStorage2DMultisample, target, samples, internalformat, width, height, fixedsamplelocations)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetMultisamplefv, GLenum pname, GLuint index, GLfloat* val) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetMultisamplefv, pname, index, val)
 DECLARE_GL_FUNCTION_HEAD(void, SampleMaski, GLuint maskNumber, GLbitfield mask) DECLARE_GL_FUNCTION_END_NO_RETURN(void, SampleMaski, maskNumber, mask)
@@ -387,14 +386,14 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetObjectPtrLabel, const void* ptr, GLsizei
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetPointerv, GLenum pname, void** params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetPointerv, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, Enablei, GLenum target, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Enablei, target, index)
 DECLARE_GL_FUNCTION_HEAD(void, Disablei, GLenum target, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Disablei, target, index)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendEquationi, GLuint buf, GLenum mode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendEquationi, buf, mode)
+DECLARE_GL_FUNCTION_HEAD(void, BlendEquationi, GLuint buf, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquationi, buf, mode)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendEquationiARB, GLuint buf, GLenum mode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendEquationi, buf, mode)
+DECLARE_GL_FUNCTION_HEAD(void, BlendEquationiARB, GLuint buf, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquationi, buf, mode)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendEquationSeparatei, GLuint buf, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendEquationSeparatei, buf, modeRGB, modeAlpha)
+DECLARE_GL_FUNCTION_HEAD(void, BlendEquationSeparatei, GLuint buf, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquationSeparatei, buf, modeRGB, modeAlpha)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendEquationSeparateiARB, GLuint buf, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendEquationSeparatei, buf, modeRGB, modeAlpha)
+DECLARE_GL_FUNCTION_HEAD(void, BlendEquationSeparateiARB, GLuint buf, GLenum modeRGB, GLenum modeAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendEquationSeparatei, buf, modeRGB, modeAlpha)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendFunci, GLuint buf, GLenum src, GLenum dst) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendFunci, buf, src, dst)
+DECLARE_GL_FUNCTION_HEAD(void, BlendFunci, GLuint buf, GLenum src, GLenum dst) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFunci, buf, src, dst)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendFunciARB, GLuint buf, GLenum src, GLenum dst) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendFunci, buf, src, dst)
+DECLARE_GL_FUNCTION_HEAD(void, BlendFunciARB, GLuint buf, GLenum src, GLenum dst) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFunci, buf, src, dst)
 DECLARE_GL_FUNCTION_HEAD(void, BlendFuncSeparatei, GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFuncSeparatei, buf, srcRGB, dstRGB, srcAlpha, dstAlpha)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlendFuncSeparateiARB, GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlendFuncSeparatei, buf, srcRGB, dstRGB, srcAlpha, dstAlpha)
+DECLARE_GL_FUNCTION_HEAD(void, BlendFuncSeparateiARB, GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlendFuncSeparatei, buf, srcRGB, dstRGB, srcAlpha, dstAlpha)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ColorMaski, GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ColorMaski, index, r, g, b, a)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsEnabledi, GLenum target, GLuint index) DECLARE_GL_FUNCTION_END(GLboolean, IsEnabledi, target, index)
 DECLARE_GL_FUNCTION_HEAD(void, DrawElementsBaseVertex, GLenum mode, GLsizei count, GLenum type, const void* indices, GLint basevertex) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawElementsBaseVertex, mode, count, type, indices, basevertex)
@@ -847,7 +846,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib4usv, GLuint index, const GLusho
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PrimitiveRestartIndex, GLuint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, PrimitiveRestartIndex, index)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetActiveUniformName, GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei* length, GLchar* uniformName) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetActiveUniformName, program, uniformIndex, bufSize, length, uniformName)
 DECLARE_GL_FUNCTION_HEAD(void, MultiDrawElementsBaseVertex, GLenum mode, const GLsizei* count, GLenum type, const void* const* indices, GLsizei drawcount, const GLint* basevertex) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawElementsBaseVertex, mode, count, type, indices, drawcount, basevertex)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProvokingVertex, GLenum mode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProvokingVertex, mode)
+DECLARE_GL_FUNCTION_HEAD(void, ProvokingVertex, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProvokingVertex, mode)
 DECLARE_GL_FUNCTION_HEAD(void, TexImage2DMultisample, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TexImage2DMultisample, target, samples, internalformat, width, height, fixedsamplelocations)
 DECLARE_GL_FUNCTION_HEAD(void, TexImage3DMultisample, GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TexImage3DMultisample, target, samples, internalformat, width, height, depth, fixedsamplelocations)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, BindFragDataLocationIndexed, GLuint program, GLuint colorNumber, GLuint index, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BindFragDataLocationIndexed, program, colorNumber, index, name)
@@ -977,11 +976,11 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, InvalidateBufferSubData, GLuint buffer, GLin
 DECLARE_GL_FUNCTION_STUB_HEAD(void, InvalidateBufferData, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, InvalidateBufferData, buffer)
 DECLARE_GL_FUNCTION_HEAD(void, MultiDrawArraysIndirect, GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawArraysIndirect, mode, indirect, drawcount, stride)
 DECLARE_GL_FUNCTION_HEAD(void, MultiDrawElementsIndirect, GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawElementsIndirect, mode, type, indirect, drawcount, stride)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLint, GetProgramResourceLocationIndex, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END(GLint, GetProgramResourceLocationIndex, program, programInterface, name)
+DECLARE_GL_FUNCTION_HEAD(GLint, GetProgramResourceLocationIndex, GLuint program, GLenum programInterface, const GLchar* name) DECLARE_GL_FUNCTION_END(GLint, GetProgramResourceLocationIndex, program, programInterface, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ShaderStorageBlockBinding, GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ShaderStorageBlockBinding, program, storageBlockIndex, storageBlockBinding)
+DECLARE_GL_FUNCTION_HEAD(void, ShaderStorageBlockBinding, GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ShaderStorageBlockBinding, program, storageBlockIndex, storageBlockBinding)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureView, GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureView, texture, target, origtexture, internalformat, minlevel, numlevels, minlayer, numlayers)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttribLFormat, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttribLFormat, attribindex, size, type, relativeoffset)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BufferStorage, GLenum target, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BufferStorage, target, size, data, flags)
+DECLARE_GL_FUNCTION_HEAD(void, BufferStorage, GLenum target, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BufferStorage, target, size, data, flags)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearTexImage, GLuint texture, GLint level, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearTexImage, texture, level, format, type, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearTexSubImage, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearTexSubImage, texture, level, xoffset, yoffset, zoffset, width, height, depth, format, type, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, BindBuffersBase, GLenum target, GLuint first, GLsizei count, const GLuint* buffers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BindBuffersBase, target, first, count, buffers)
@@ -997,51 +996,51 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, TransformFeedbackBufferRange, GLuint xfb, GL
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTransformFeedbackiv, GLuint xfb, GLenum pname, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTransformFeedbackiv, xfb, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTransformFeedbacki_v, GLuint xfb, GLenum pname, GLuint index, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTransformFeedbacki_v, xfb, pname, index, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTransformFeedbacki64_v, GLuint xfb, GLenum pname, GLuint index, GLint64* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTransformFeedbacki64_v, xfb, pname, index, param)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CreateBuffers, GLsizei n, GLuint* buffers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CreateBuffers, n, buffers)
+DECLARE_GL_FUNCTION_HEAD(void, CreateBuffers, GLsizei n, GLuint* buffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CreateBuffers, n, buffers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferStorage, GLuint buffer, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferStorage, buffer, size, data, flags)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferStorage, GLuint buffer, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferStorage, buffer, size, data, flags)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferData, GLuint buffer, GLsizeiptr size, const void* data, GLenum usage) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferData, buffer, size, data, usage)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferData, GLuint buffer, GLsizeiptr size, const void* data, GLenum usage) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferData, buffer, size, data, usage)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferSubData, GLuint buffer, GLintptr offset, GLsizeiptr size, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferSubData, buffer, offset, size, data)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferSubData, GLuint buffer, GLintptr offset, GLsizeiptr size, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferSubData, buffer, offset, size, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyNamedBufferSubData, GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyNamedBufferSubData, readBuffer, writeBuffer, readOffset, writeOffset, size)
+DECLARE_GL_FUNCTION_HEAD(void, CopyNamedBufferSubData, GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CopyNamedBufferSubData, readBuffer, writeBuffer, readOffset, writeOffset, size)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedBufferData, GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedBufferData, buffer, internalformat, format, type, data)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedBufferData, GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedBufferData, buffer, internalformat, format, type, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedBufferSubData, GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedBufferSubData, buffer, internalformat, offset, size, format, type, data)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedBufferSubData, GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedBufferSubData, buffer, internalformat, offset, size, format, type, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, UnmapNamedBuffer, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END(GLboolean, UnmapNamedBuffer, buffer)
+DECLARE_GL_FUNCTION_HEAD(GLboolean, UnmapNamedBuffer, GLuint buffer) DECLARE_GL_FUNCTION_END(GLboolean, UnmapNamedBuffer, buffer)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, FlushMappedNamedBufferRange, GLuint buffer, GLintptr offset, GLsizeiptr length) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, FlushMappedNamedBufferRange, buffer, offset, length)
+DECLARE_GL_FUNCTION_HEAD(void, FlushMappedNamedBufferRange, GLuint buffer, GLintptr offset, GLsizeiptr length) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FlushMappedNamedBufferRange, buffer, offset, length)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferParameteriv, GLuint buffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferParameteriv, buffer, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedBufferParameteriv, GLuint buffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedBufferParameteriv, buffer, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferParameteri64v, GLuint buffer, GLenum pname, GLint64* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferParameteri64v, buffer, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedBufferParameteri64v, GLuint buffer, GLenum pname, GLint64* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedBufferParameteri64v, buffer, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferPointerv, GLuint buffer, GLenum pname, void** params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferPointerv, buffer, pname, *params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedBufferPointerv, GLuint buffer, GLenum pname, void** params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedBufferPointerv, buffer, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferSubData, GLuint buffer, GLintptr offset, GLsizeiptr size, void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferSubData, buffer, offset, size, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CreateFramebuffers, GLsizei n, GLuint* framebuffers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CreateFramebuffers, n, framebuffers)
+DECLARE_GL_FUNCTION_HEAD(void, CreateFramebuffers, GLsizei n, GLuint* framebuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CreateFramebuffers, n, framebuffers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferRenderbuffer, GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferRenderbuffer, framebuffer, attachment, renderbuffertarget, renderbuffer)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferRenderbuffer, GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferRenderbuffer, framebuffer, attachment, renderbuffertarget, renderbuffer)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferParameteri, GLuint framebuffer, GLenum pname, GLint param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferParameteri, framebuffer, pname, param)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferTexture, GLuint framebuffer, GLenum attachment, GLuint texture, GLint level) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferTexture, framebuffer, attachment, texture, level)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferTexture, GLuint framebuffer, GLenum attachment, GLuint texture, GLint level) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferTexture, framebuffer, attachment, texture, level)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferTextureLayer, GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferTextureLayer, framebuffer, attachment, texture, level, layer)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferDrawBuffer, GLuint framebuffer, GLenum buf) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferDrawBuffer, framebuffer, buf)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferDrawBuffer, GLuint framebuffer, GLenum buf) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferDrawBuffer, framebuffer, buf)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferDrawBuffers, GLuint framebuffer, GLsizei n, const GLenum* bufs) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferDrawBuffers, framebuffer, n, bufs)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferDrawBuffers, GLuint framebuffer, GLsizei n, const GLenum* bufs) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferDrawBuffers, framebuffer, n, bufs)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferReadBuffer, GLuint framebuffer, GLenum src) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferReadBuffer, framebuffer, src)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferReadBuffer, GLuint framebuffer, GLenum src) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferReadBuffer, framebuffer, src)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, InvalidateNamedFramebufferData, GLuint framebuffer, GLsizei numAttachments, const GLenum* attachments) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, InvalidateNamedFramebufferData, framebuffer, numAttachments, attachments)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, InvalidateNamedFramebufferSubData, GLuint framebuffer, GLsizei numAttachments, const GLenum* attachments, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, InvalidateNamedFramebufferSubData, framebuffer, numAttachments, attachments, x, y, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedFramebufferiv, GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedFramebufferiv, framebuffer, buffer, drawbuffer, value)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedFramebufferuiv, GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedFramebufferuiv, framebuffer, buffer, drawbuffer, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedFramebufferfv, GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedFramebufferfv, framebuffer, buffer, drawbuffer, value)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedFramebufferfv, GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedFramebufferfv, framebuffer, buffer, drawbuffer, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedFramebufferfi, GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedFramebufferfi, framebuffer, buffer, drawbuffer, depth, stencil)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedFramebufferfi, GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedFramebufferfi, framebuffer, buffer, drawbuffer, depth, stencil)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BlitNamedFramebuffer, GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BlitNamedFramebuffer, readFramebuffer, drawFramebuffer, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter)
+DECLARE_GL_FUNCTION_HEAD(void, BlitNamedFramebuffer, GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BlitNamedFramebuffer, readFramebuffer, drawFramebuffer, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLenum, CheckNamedFramebufferStatus, GLuint framebuffer, GLenum target) DECLARE_GL_FUNCTION_STUB_END(GLenum, CheckNamedFramebufferStatus, framebuffer, target)
+DECLARE_GL_FUNCTION_HEAD(GLenum, CheckNamedFramebufferStatus, GLuint framebuffer, GLenum target) DECLARE_GL_FUNCTION_END(GLenum, CheckNamedFramebufferStatus, framebuffer, target)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedFramebufferParameteriv, GLuint framebuffer, GLenum pname, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedFramebufferParameteriv, framebuffer, pname, param)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedFramebufferAttachmentParameteriv, GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedFramebufferAttachmentParameteriv, framebuffer, attachment, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedFramebufferAttachmentParameteriv, GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedFramebufferAttachmentParameteriv, framebuffer, attachment, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CreateRenderbuffers, GLsizei n, GLuint* renderbuffers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CreateRenderbuffers, n, renderbuffers)
+DECLARE_GL_FUNCTION_HEAD(void, CreateRenderbuffers, GLsizei n, GLuint* renderbuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CreateRenderbuffers, n, renderbuffers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedRenderbufferStorage, GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedRenderbufferStorage, renderbuffer, internalformat, width, height)
+DECLARE_GL_FUNCTION_HEAD(void, NamedRenderbufferStorage, GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedRenderbufferStorage, renderbuffer, internalformat, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedRenderbufferStorageMultisample, GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedRenderbufferStorageMultisample, renderbuffer, samples, internalformat, width, height)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedRenderbufferParameteriv, GLuint renderbuffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedRenderbufferParameteriv, renderbuffer, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedRenderbufferParameteriv, GLuint renderbuffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedRenderbufferParameteriv, renderbuffer, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CreateTextures, GLenum target, GLsizei n, GLuint* textures) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CreateTextures, target, n, textures)
+DECLARE_GL_FUNCTION_HEAD(void, CreateTextures, GLenum target, GLsizei n, GLuint* textures) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CreateTextures, target, n, textures)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureBuffer, GLuint texture, GLenum internalformat, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureBuffer, texture, internalformat, buffer)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureBufferRange, GLuint texture, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureBufferRange, texture, internalformat, buffer, offset, size)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureStorage1D, GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureStorage1D, texture, levels, internalformat, width)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureStorage2D, GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureStorage2D, texture, levels, internalformat, width, height)
+DECLARE_GL_FUNCTION_HEAD(void, TextureStorage2D, GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TextureStorage2D, texture, levels, internalformat, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureStorage3D, GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureStorage3D, texture, levels, internalformat, width, height, depth)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureStorage2DMultisample, GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureStorage2DMultisample, texture, samples, internalformat, width, height, fixedsamplelocations)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureStorage3DMultisample, GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureStorage3DMultisample, texture, samples, internalformat, width, height, depth, fixedsamplelocations)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureSubImage1D, GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureSubImage1D, texture, level, xoffset, width, format, type, pixels)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureSubImage2D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureSubImage2D, texture, level, xoffset, yoffset, width, height, format, type, pixels)
+DECLARE_GL_FUNCTION_HEAD(void, TextureSubImage2D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TextureSubImage2D, texture, level, xoffset, yoffset, width, height, format, type, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureSubImage3D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureSubImage3D, texture, level, xoffset, yoffset, zoffset, width, height, depth, format, type, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CompressedTextureSubImage1D, GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CompressedTextureSubImage1D, texture, level, xoffset, width, format, imageSize, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CompressedTextureSubImage2D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CompressedTextureSubImage2D, texture, level, xoffset, yoffset, width, height, format, imageSize, data)
@@ -1049,31 +1048,31 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, CompressedTextureSubImage3D, GLuint texture,
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTextureSubImage1D, GLuint texture, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyTextureSubImage1D, texture, level, xoffset, x, y, width)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTextureSubImage2D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyTextureSubImage2D, texture, level, xoffset, yoffset, x, y, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTextureSubImage3D, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyTextureSubImage3D, texture, level, xoffset, yoffset, zoffset, x, y, width, height)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameterf, GLuint texture, GLenum pname, GLfloat param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameterf, texture, pname, param)
+DECLARE_GL_FUNCTION_HEAD(void, TextureParameterf, GLuint texture, GLenum pname, GLfloat param) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TextureParameterf, texture, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameterfv, GLuint texture, GLenum pname, const GLfloat* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameterfv, texture, pname, param)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameteri, GLuint texture, GLenum pname, GLint param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameteri, texture, pname, param)
+DECLARE_GL_FUNCTION_HEAD(void, TextureParameteri, GLuint texture, GLenum pname, GLint param) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TextureParameteri, texture, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameterIiv, GLuint texture, GLenum pname, const GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameterIiv, texture, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameterIuiv, GLuint texture, GLenum pname, const GLuint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameterIuiv, texture, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureParameteriv, GLuint texture, GLenum pname, const GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureParameteriv, texture, pname, param)
+DECLARE_GL_FUNCTION_HEAD(void, TextureParameteriv, GLuint texture, GLenum pname, const GLint* param) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TextureParameteriv, texture, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GenerateTextureMipmap, GLuint texture) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GenerateTextureMipmap, texture)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BindTextureUnit, GLuint unit, GLuint texture) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BindTextureUnit, unit, texture)
+DECLARE_GL_FUNCTION_HEAD(void, BindTextureUnit, GLuint unit, GLuint texture) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindTextureUnit, unit, texture)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureImage, GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureImage, texture, level, format, type, bufSize, pixels)
+DECLARE_GL_FUNCTION_HEAD(void, GetTextureImage, GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTextureImage, texture, level, format, type, bufSize, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetCompressedTextureImage, GLuint texture, GLint level, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetCompressedTextureImage, texture, level, bufSize, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureLevelParameterfv, GLuint texture, GLint level, GLenum pname, GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureLevelParameterfv, texture, level, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureLevelParameteriv, GLuint texture, GLint level, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureLevelParameteriv, texture, level, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetTextureLevelParameteriv, GLuint texture, GLint level, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTextureLevelParameteriv, texture, level, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureParameterfv, GLuint texture, GLenum pname, GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureParameterfv, texture, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureParameterIiv, GLuint texture, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureParameterIiv, texture, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureParameterIuiv, GLuint texture, GLenum pname, GLuint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureParameterIuiv, texture, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureParameteriv, GLuint texture, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureParameteriv, texture, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetTextureParameteriv, GLuint texture, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTextureParameteriv, texture, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CreateVertexArrays, GLsizei n, GLuint* arrays) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CreateVertexArrays, n, arrays)
+DECLARE_GL_FUNCTION_HEAD(void, CreateVertexArrays, GLsizei n, GLuint* arrays) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CreateVertexArrays, n, arrays)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DisableVertexArrayAttrib, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DisableVertexArrayAttrib, vaobj, index)
+DECLARE_GL_FUNCTION_HEAD(void, DisableVertexArrayAttrib, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DisableVertexArrayAttrib, vaobj, index)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, EnableVertexArrayAttrib, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, EnableVertexArrayAttrib, vaobj, index)
+DECLARE_GL_FUNCTION_HEAD(void, EnableVertexArrayAttrib, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, EnableVertexArrayAttrib, vaobj, index)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayElementBuffer, GLuint vaobj, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayElementBuffer, vaobj, buffer)
+DECLARE_GL_FUNCTION_HEAD(void, VertexArrayElementBuffer, GLuint vaobj, GLuint buffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexArrayElementBuffer, vaobj, buffer)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayVertexBuffer, GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayVertexBuffer, vaobj, bindingindex, buffer, offset, stride)
+DECLARE_GL_FUNCTION_HEAD(void, VertexArrayVertexBuffer, GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexArrayVertexBuffer, vaobj, bindingindex, buffer, offset, stride)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayVertexBuffers, GLuint vaobj, GLuint first, GLsizei count, const GLuint* buffers, const GLintptr* offsets, const GLsizei* strides) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayVertexBuffers, vaobj, first, count, buffers, offsets, strides)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayAttribBinding, GLuint vaobj, GLuint attribindex, GLuint bindingindex) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayAttribBinding, vaobj, attribindex, bindingindex)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayAttribFormat, GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayAttribFormat, vaobj, attribindex, size, type, normalized, relativeoffset)
+DECLARE_GL_FUNCTION_HEAD(void, VertexArrayAttribFormat, GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexArrayAttribFormat, vaobj, attribindex, size, type, normalized, relativeoffset)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayAttribIFormat, GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayAttribIFormat, vaobj, attribindex, size, type, relativeoffset)
+DECLARE_GL_FUNCTION_HEAD(void, VertexArrayAttribIFormat, GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexArrayAttribIFormat, vaobj, attribindex, size, type, relativeoffset)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayAttribLFormat, GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayAttribLFormat, vaobj, attribindex, size, type, relativeoffset)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayBindingDivisor, GLuint vaobj, GLuint bindingindex, GLuint divisor) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayBindingDivisor, vaobj, bindingindex, divisor)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexArrayiv, GLuint vaobj, GLenum pname, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexArrayiv, vaobj, pname, param)
@@ -1086,7 +1085,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryBufferObjecti64v, GLuint id, GLuint
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryBufferObjectiv, GLuint id, GLuint buffer, GLenum pname, GLintptr offset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryBufferObjectiv, id, buffer, pname, offset)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryBufferObjectui64v, GLuint id, GLuint buffer, GLenum pname, GLintptr offset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryBufferObjectui64v, id, buffer, pname, offset)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryBufferObjectuiv, GLuint id, GLuint buffer, GLenum pname, GLintptr offset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryBufferObjectuiv, id, buffer, pname, offset)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetTextureSubImage, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetTextureSubImage, texture, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bufSize, pixels)
+DECLARE_GL_FUNCTION_HEAD(void, GetTextureSubImage, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTextureSubImage, texture, level, xoffset, yoffset, zoffset, width, height, depth, format, type, bufSize, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetCompressedTextureSubImage, GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetCompressedTextureSubImage, texture, level, xoffset, yoffset, zoffset, width, height, depth, bufSize, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetnCompressedTexImage, GLenum target, GLint lod, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetnCompressedTexImage, target, lod, bufSize, pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetnTexImage, GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetnTexImage, target, level, format, type, bufSize, pixels)
@@ -1105,8 +1104,8 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetnHistogram, GLenum target, GLboolean rese
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetnMinmax, GLenum target, GLboolean reset, GLenum format, GLenum type, GLsizei bufSize, void* values) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetnMinmax, target, reset, format, type, bufSize, values)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureBarrier, void) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureBarrier, )
 DECLARE_GL_FUNCTION_STUB_HEAD(void, SpecializeShader, GLuint shader, const GLchar* pEntryPoint, GLuint numSpecializationConstants, const GLuint* pConstantIndex, const GLuint* pConstantValue) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, SpecializeShader, shader, pEntryPoint, numSpecializationConstants, pConstantIndex, pConstantValue)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MultiDrawArraysIndirectCount, GLenum mode, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MultiDrawArraysIndirectCount, mode, indirect, drawcount, maxdrawcount, stride)
+DECLARE_GL_FUNCTION_HEAD(void, MultiDrawArraysIndirectCount, GLenum mode, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawArraysIndirectCount, mode, indirect, drawcount, maxdrawcount, stride)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MultiDrawElementsIndirectCount, GLenum mode, GLenum type, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MultiDrawElementsIndirectCount, mode, type, indirect, drawcount, maxdrawcount, stride)
+DECLARE_GL_FUNCTION_HEAD(void, MultiDrawElementsIndirectCount, GLenum mode, GLenum type, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawElementsIndirectCount, mode, type, indirect, drawcount, maxdrawcount, stride)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PolygonOffsetClamp, GLfloat factor, GLfloat units, GLfloat clamp) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, PolygonOffsetClamp, factor, units, clamp)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PrimitiveBoundingBoxARB, GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW) DECLARE_GL_FUNCTION_STUB_END(void, PrimitiveBoundingBoxARB, minX, minY, minZ, minW, maxX, maxY, maxZ, maxW)
 DECLARE_GL_FUNCTION_STUB_HEAD(GLuint64, GetTextureHandleARB, GLuint texture) DECLARE_GL_FUNCTION_STUB_END(GLuint64, GetTextureHandleARB, texture)
@@ -1215,8 +1214,8 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, Histogram, GLenum target, GLsizei width, GLe
 DECLARE_GL_FUNCTION_STUB_HEAD(void, Minmax, GLenum target, GLenum internalformat, GLboolean sink) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Minmax, target, internalformat, sink)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ResetHistogram, GLenum target) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ResetHistogram, target)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ResetMinmax, GLenum target) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ResetMinmax, target)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MultiDrawArraysIndirectCountARB, GLenum mode, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MultiDrawArraysIndirectCountARB, mode, indirect, drawcount, maxdrawcount, stride)
+DECLARE_GL_FUNCTION_HEAD(void, MultiDrawArraysIndirectCountARB, GLenum mode, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawArraysIndirectCount, mode, indirect, drawcount, maxdrawcount, stride)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, MultiDrawElementsIndirectCountARB, GLenum mode, GLenum type, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MultiDrawElementsIndirectCountARB, mode, type, indirect, drawcount, maxdrawcount, stride)
+DECLARE_GL_FUNCTION_HEAD(void, MultiDrawElementsIndirectCountARB, GLenum mode, GLenum type, const void* indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride) DECLARE_GL_FUNCTION_END_NO_RETURN(void, MultiDrawElementsIndirectCount, mode, type, indirect, drawcount, maxdrawcount, stride)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CurrentPaletteMatrixARB, GLint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CurrentPaletteMatrixARB, index)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixIndexubvARB, GLint size, const GLubyte* indices) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MatrixIndexubvARB, size, indices)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixIndexusvARB, GLint size, const GLushort* indices) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MatrixIndexusvARB, size, indices)
@@ -1846,11 +1845,11 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixLoadTransposefEXT, GLenum mode, const
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixLoadTransposedEXT, GLenum mode, const GLdouble* m) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MatrixLoadTransposedEXT, mode, m)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixMultTransposefEXT, GLenum mode, const GLfloat* m) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MatrixMultTransposefEXT, mode, m)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MatrixMultTransposedEXT, GLenum mode, const GLdouble* m) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MatrixMultTransposedEXT, mode, m)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferDataEXT, GLuint buffer, GLsizeiptr size, const void* data, GLenum usage) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferDataEXT, buffer, size, data, usage)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferDataEXT, GLuint buffer, GLsizeiptr size, const void* data, GLenum usage) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferData, buffer, size, data, usage)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferSubDataEXT, GLuint buffer, GLintptr offset, GLsizeiptr size, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferSubDataEXT, buffer, offset, size, data)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferSubDataEXT, GLuint buffer, GLintptr offset, GLsizeiptr size, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferSubData, buffer, offset, size, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, UnmapNamedBufferEXT, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END(GLboolean, UnmapNamedBufferEXT, buffer)
+DECLARE_GL_FUNCTION_HEAD(GLboolean, UnmapNamedBufferEXT, GLuint buffer) DECLARE_GL_FUNCTION_END(GLboolean, UnmapNamedBuffer, buffer)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferParameterivEXT, GLuint buffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferParameterivEXT, buffer, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedBufferParameterivEXT, GLuint buffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedBufferParameteriv, buffer, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferPointervEXT, GLuint buffer, GLenum pname, void** params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferPointervEXT, buffer, pname, *params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedBufferPointervEXT, GLuint buffer, GLenum pname, void** params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedBufferPointerv, buffer, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedBufferSubDataEXT, GLuint buffer, GLintptr offset, GLsizeiptr size, void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedBufferSubDataEXT, buffer, offset, size, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TextureBufferEXT, GLuint texture, GLenum target, GLenum internalformat, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TextureBufferEXT, texture, target, internalformat, buffer)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, MultiTexBufferEXT, GLenum texunit, GLenum target, GLenum internalformat, GLuint buffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, MultiTexBufferEXT, texunit, target, internalformat, buffer)
@@ -1885,15 +1884,15 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedProgramLocalParameterdvEXT, GLuint p
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedProgramLocalParameterfvEXT, GLuint program, GLenum target, GLuint index, GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedProgramLocalParameterfvEXT, program, target, index, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedProgramivEXT, GLuint program, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedProgramivEXT, program, target, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedProgramStringEXT, GLuint program, GLenum target, GLenum pname, void* string) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedProgramStringEXT, program, target, pname, string)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedRenderbufferStorageEXT, GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedRenderbufferStorageEXT, renderbuffer, internalformat, width, height)
+DECLARE_GL_FUNCTION_HEAD(void, NamedRenderbufferStorageEXT, GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedRenderbufferStorage, renderbuffer, internalformat, width, height)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedRenderbufferParameterivEXT, GLuint renderbuffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedRenderbufferParameterivEXT, renderbuffer, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetNamedRenderbufferParameterivEXT, GLuint renderbuffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetNamedRenderbufferParameteriv, renderbuffer, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedRenderbufferStorageMultisampleEXT, GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedRenderbufferStorageMultisampleEXT, renderbuffer, samples, internalformat, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedRenderbufferStorageMultisampleCoverageEXT, GLuint renderbuffer, GLsizei coverageSamples, GLsizei colorSamples, GLenum internalformat, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedRenderbufferStorageMultisampleCoverageEXT, renderbuffer, coverageSamples, colorSamples, internalformat, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(GLenum, CheckNamedFramebufferStatusEXT, GLuint framebuffer, GLenum target) DECLARE_GL_FUNCTION_STUB_END(GLenum, CheckNamedFramebufferStatusEXT, framebuffer, target)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferTexture1DEXT, GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferTexture1DEXT, framebuffer, attachment, textarget, texture, level)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferTexture2DEXT, GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferTexture2DEXT, framebuffer, attachment, textarget, texture, level)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferTexture3DEXT, GLuint framebuffer, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferTexture3DEXT, framebuffer, attachment, textarget, texture, level, zoffset)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferRenderbufferEXT, GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferRenderbufferEXT, framebuffer, attachment, renderbuffertarget, renderbuffer)
+DECLARE_GL_FUNCTION_HEAD(void, NamedFramebufferRenderbufferEXT, GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedFramebufferRenderbuffer, framebuffer, attachment, renderbuffertarget, renderbuffer)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedFramebufferAttachmentParameterivEXT, GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedFramebufferAttachmentParameterivEXT, framebuffer, attachment, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GenerateTextureMipmapEXT, GLuint texture, GLenum target) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GenerateTextureMipmapEXT, texture, target)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GenerateMultiTexMipmapEXT, GLenum texunit, GLenum target) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GenerateMultiTexMipmapEXT, texunit, target)
@@ -1919,16 +1918,16 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayVertexAttribOffsetEXT, GLuint vao
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexArrayVertexAttribIOffsetEXT, GLuint vaobj, GLuint buffer, GLuint index, GLint size, GLenum type, GLsizei stride, GLintptr offset) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexArrayVertexAttribIOffsetEXT, vaobj, buffer, index, size, type, stride, offset)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, EnableVertexArrayEXT, GLuint vaobj, GLenum array) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, EnableVertexArrayEXT, vaobj, array)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, DisableVertexArrayEXT, GLuint vaobj, GLenum array) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DisableVertexArrayEXT, vaobj, array)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, EnableVertexArrayAttribEXT, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, EnableVertexArrayAttribEXT, vaobj, index)
+DECLARE_GL_FUNCTION_HEAD(void, EnableVertexArrayAttribEXT, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, EnableVertexArrayAttrib, vaobj, index)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DisableVertexArrayAttribEXT, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DisableVertexArrayAttribEXT, vaobj, index)
+DECLARE_GL_FUNCTION_HEAD(void, DisableVertexArrayAttribEXT, GLuint vaobj, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DisableVertexArrayAttrib, vaobj, index)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexArrayIntegervEXT, GLuint vaobj, GLenum pname, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexArrayIntegervEXT, vaobj, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexArrayPointervEXT, GLuint vaobj, GLenum pname, void** param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexArrayPointervEXT, vaobj, pname, *param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexArrayIntegeri_vEXT, GLuint vaobj, GLuint index, GLenum pname, GLint* param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexArrayIntegeri_vEXT, vaobj, index, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexArrayPointeri_vEXT, GLuint vaobj, GLuint index, GLenum pname, void** param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexArrayPointeri_vEXT, vaobj, index, pname, *param)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, FlushMappedNamedBufferRangeEXT, GLuint buffer, GLintptr offset, GLsizeiptr length) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, FlushMappedNamedBufferRangeEXT, buffer, offset, length)
+DECLARE_GL_FUNCTION_HEAD(void, FlushMappedNamedBufferRangeEXT, GLuint buffer, GLintptr offset, GLsizeiptr length) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FlushMappedNamedBufferRange, buffer, offset, length)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedBufferStorageEXT, GLuint buffer, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedBufferStorageEXT, buffer, size, data, flags)
+DECLARE_GL_FUNCTION_HEAD(void, NamedBufferStorageEXT, GLuint buffer, GLsizeiptr size, const void* data, GLbitfield flags) DECLARE_GL_FUNCTION_END_NO_RETURN(void, NamedBufferStorage, buffer, size, data, flags)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedBufferDataEXT, GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedBufferDataEXT, buffer, internalformat, format, type, data)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedBufferDataEXT, GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedBufferData, buffer, internalformat, format, type, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearNamedBufferSubDataEXT, GLuint buffer, GLenum internalformat, GLsizeiptr offset, GLsizeiptr size, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearNamedBufferSubDataEXT, buffer, internalformat, offset, size, format, type, data)
+DECLARE_GL_FUNCTION_HEAD(void, ClearNamedBufferSubDataEXT, GLuint buffer, GLenum internalformat, GLsizeiptr offset, GLsizeiptr size, GLenum format, GLenum type, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearNamedBufferSubData, buffer, internalformat, offset, size, format, type, data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, NamedFramebufferParameteriEXT, GLuint framebuffer, GLenum pname, GLint param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, NamedFramebufferParameteriEXT, framebuffer, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetNamedFramebufferParameterivEXT, GLuint framebuffer, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetNamedFramebufferParameterivEXT, framebuffer, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ProgramUniform1dEXT, GLuint program, GLint location, GLdouble x) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProgramUniform1dEXT, program, location, x)
@@ -2046,7 +2045,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetPixelTransformParameterfvEXT, GLenum targ
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PointParameterfEXT, GLenum pname, GLfloat param) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, PointParameterfEXT, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PointParameterfvEXT, GLenum pname, const GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, PointParameterfvEXT, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, PolygonOffsetClampEXT, GLfloat factor, GLfloat units, GLfloat clamp) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, PolygonOffsetClampEXT, factor, units, clamp)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ProvokingVertexEXT, GLenum mode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ProvokingVertexEXT, mode)
+DECLARE_GL_FUNCTION_HEAD(void, ProvokingVertexEXT, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ProvokingVertex, mode)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, RasterSamplesEXT, GLuint samples, GLboolean fixedsamplelocations) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, RasterSamplesEXT, samples, fixedsamplelocations)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, SecondaryColor3bEXT, GLbyte red, GLbyte green, GLbyte blue) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, SecondaryColor3bEXT, red, green, blue)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, SecondaryColor3bvEXT, const GLbyte* v) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, SecondaryColor3bvEXT, v)
@@ -2880,6 +2879,69 @@ MOBILEGL_GL_API void glGetFramebufferParameterivEXT(GLenum target, GLenum pname,
     glGetFramebufferParameteriv(target, pname, params);
 }
 
+MOBILEGL_GL_API void glBindFramebufferEXT(GLenum target, GLuint framebuffer) {
+    glBindFramebuffer(target, framebuffer);
+}
+
+MOBILEGL_GL_API void glBindRenderbufferEXT(GLenum target, GLuint renderbuffer) {
+    glBindRenderbuffer(target, renderbuffer);
+}
+
+MOBILEGL_GL_API GLenum glCheckFramebufferStatusEXT(GLenum target) {
+    return glCheckFramebufferStatus(target);
+}
+
+MOBILEGL_GL_API void glDeleteFramebuffersEXT(GLsizei n, const GLuint* framebuffers) {
+    glDeleteFramebuffers(n, framebuffers);
+}
+
+MOBILEGL_GL_API void glDeleteRenderbuffersEXT(GLsizei n, const GLuint* renderbuffers) {
+    glDeleteRenderbuffers(n, renderbuffers);
+}
+
+MOBILEGL_GL_API void glFramebufferRenderbufferEXT(GLenum target, GLenum attachment, GLenum renderbuffertarget,
+                                                  GLuint renderbuffer) {
+    glFramebufferRenderbuffer(target, attachment, renderbuffertarget, renderbuffer);
+}
+
+MOBILEGL_GL_API void glFramebufferTexture2DEXT(GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
+                                               GLint level) {
+    glFramebufferTexture2D(target, attachment, textarget, texture, level);
+}
+
+MOBILEGL_GL_API void glGenFramebuffersEXT(GLsizei n, GLuint* framebuffers) {
+    glGenFramebuffers(n, framebuffers);
+}
+
+MOBILEGL_GL_API void glGenRenderbuffersEXT(GLsizei n, GLuint* renderbuffers) {
+    glGenRenderbuffers(n, renderbuffers);
+}
+
+MOBILEGL_GL_API void glGenerateMipmapEXT(GLenum target) {
+    glGenerateMipmap(target);
+}
+
+MOBILEGL_GL_API void glGetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment, GLenum pname,
+                                                              GLint* params) {
+    glGetFramebufferAttachmentParameteriv(target, attachment, pname, params);
+}
+
+MOBILEGL_GL_API void glGetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint* params) {
+    glGetRenderbufferParameteriv(target, pname, params);
+}
+
+MOBILEGL_GL_API GLboolean glIsFramebufferEXT(GLuint framebuffer) {
+    return glIsFramebuffer(framebuffer);
+}
+
+MOBILEGL_GL_API GLboolean glIsRenderbufferEXT(GLuint renderbuffer) {
+    return glIsRenderbuffer(renderbuffer);
+}
+
+MOBILEGL_GL_API void glRenderbufferStorageEXT(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {
+    glRenderbufferStorage(target, internalformat, width, height);
+}
+
 MOBILEGL_GL_API GLenum glGetGraphicsResetStatusARB(void) {
     return glGetGraphicsResetStatus();
 }
@@ -2902,8 +2964,8 @@ MOBILEGL_GL_API void glGetObjectLabelEXT(GLenum identifier, GLuint name, GLsizei
 }
 
 MOBILEGL_GL_API void* glMapNamedBuffer(GLuint buffer, GLenum access) {
-    MGLOG_W("Stub function: %s(...)", __FUNCTION__);
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);
-    return nullptr;
+    return MobileGL::MG_Impl::GLImpl::MapNamedBuffer(buffer, access);
 }
 
 MOBILEGL_GL_API void* glMapNamedBufferEXT(GLuint buffer, GLenum access) {
@@ -2911,8 +2973,8 @@ MOBILEGL_GL_API void* glMapNamedBufferEXT(GLuint buffer, GLenum access) {
 }
 
 MOBILEGL_GL_API void* glMapNamedBufferRange(GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access) {
-    MGLOG_W("Stub function: %s(...)", __FUNCTION__);
+    MGLOG_D("Implementing function: %s(...)", __FUNCTION__);
-    return nullptr;
+    return MobileGL::MG_Impl::GLImpl::MapNamedBufferRange(buffer, offset, length, access);
 }
 
 MOBILEGL_GL_API void* glMapNamedBufferRangeEXT(GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access) {
@@ -3025,48 +3087,48 @@ MOBILEGL_GL_API void glProgramUniform4uivEXT(GLuint program, GLint location, GLs
     glProgramUniform4uiv(program, location, count, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix2fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix2fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                  GLboolean transpose, const GLfloat* value) {
+                                                  const GLfloat* value) {
     glProgramUniformMatrix2fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix2x3fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix2x3fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix2x3fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix2x4fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix2x4fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix2x4fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix3fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix3fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                  GLboolean transpose, const GLfloat* value) {
+                                                  const GLfloat* value) {
     glProgramUniformMatrix3fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix3x2fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix3x2fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix3x2fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix3x4fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix3x4fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix3x4fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix4fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix4fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                  GLboolean transpose, const GLfloat* value) {
+                                                  const GLfloat* value) {
     glProgramUniformMatrix4fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix4x2fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix4x2fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix4x2fv(program, location, count, transpose, value);
 }
 
-MOBILEGL_GL_API void glProgramUniformMatrix4x3fvEXT(GLuint program, GLint location, GLsizei count,
+MOBILEGL_GL_API void glProgramUniformMatrix4x3fvEXT(GLuint program, GLint location, GLsizei count, GLboolean transpose,
-                                                    GLboolean transpose, const GLfloat* value) {
+                                                    const GLfloat* value) {
     glProgramUniformMatrix4x3fv(program, location, count, transpose, value);
 }
 

MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.cpp

@@ -25,6 +25,39 @@ namespace MobileGL::MG_Impl::GLImpl {
                                                               mask, filter);
     }
 
+    void BlitNamedFramebuffer_Backend(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                                      const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                                      GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,
+                                      GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
+        auto blitNamedFramebuffer = MG_Backend::gBackendFunctionsTable.GL.BlitNamedFramebuffer;
+        if (!blitNamedFramebuffer) {
+            MGLOG_E("glBlitNamedFramebuffer skipped: backend does not implement explicit framebuffer blit.");
+            return;
+        }
+        blitNamedFramebuffer(readFramebuffer, drawFramebuffer, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1,
+                             dstY1, mask, filter);
+    }
+
+    void ClearNamedFramebufferfv_Backend(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                         GLenum buffer, GLint drawbuffer, const GLfloat* value) {
+        auto clearNamedFramebufferfv = MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfv;
+        if (!clearNamedFramebufferfv) {
+            MGLOG_E("glClearNamedFramebufferfv skipped: backend does not implement explicit framebuffer clear.");
+            return;
+        }
+        clearNamedFramebufferfv(framebuffer, buffer, drawbuffer, value);
+    }
+
+    void ClearNamedFramebufferfi_Backend(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                         GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {
+        auto clearNamedFramebufferfi = MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfi;
+        if (!clearNamedFramebufferfi) {
+            MGLOG_E("glClearNamedFramebufferfi skipped: backend does not implement explicit framebuffer clear.");
+            return;
+        }
+        clearNamedFramebufferfi(framebuffer, buffer, drawbuffer, depth, stencil);
+    }
+
     void SampleMaski_State(GLuint maskNumber, GLbitfield mask) {
         // TODO: implement
     }
@@ -34,23 +67,19 @@ namespace MobileGL::MG_Impl::GLImpl {
         // TODO: implement
     }
 
-    void RenderbufferStorage_State(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {
+    void AllocateRenderbufferStorage_State(const SharedPtr<MG_State::GLState::RenderbufferObject>& renderbufferObject,
-        RenderbufferTarget rbTarget = MG_Util::ConvertGLEnumToRenderbufferTarget(target);
+                                           GLenum internalformat, GLsizei width, GLsizei height, const char* caller) {
-        if (!FramebufferImpl::ValidateRenderbufferTarget(rbTarget)) return;
-        auto& bindingSlot = MG_State::pGLContext->GetRenderbufferBindingSlot(rbTarget);
-        auto& renderbufferObject = bindingSlot.GetBoundObject();
         if (!renderbufferObject) {
             MG_State::pGLContext->RecordError(
                 ErrorCode::InvalidOperation,
-                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "RenderbufferStorage_State",
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "No renderbuffer object is available."));
-                                             "Renderbuffer target is bound to no renderbuffer object."));
             return;
         }
         TextureInternalFormat format = MG_Util::ConvertGLEnumToTextureInternalFormat(internalformat);
         if (!TextureImpl::ValidateTextureInternalFormat(format)) return;
         if (width < 0 || height < 0) {
             MG_State::pGLContext->RecordError(
-                ErrorCode::InvalidValue, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "RenderbufferStorage_State",
+                ErrorCode::InvalidValue, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
                                                                       "Width and height must be non-negative."));
             return;
         }
@@ -58,6 +87,14 @@ namespace MobileGL::MG_Impl::GLImpl {
         renderbufferObject->SetInternalFormat(format);
     }
 
+    void RenderbufferStorage_State(GLenum target, GLenum internalformat, GLsizei width, GLsizei height) {
+        RenderbufferTarget rbTarget = MG_Util::ConvertGLEnumToRenderbufferTarget(target);
+        if (!FramebufferImpl::ValidateRenderbufferTarget(rbTarget)) return;
+        auto& bindingSlot = MG_State::pGLContext->GetRenderbufferBindingSlot(rbTarget);
+        auto& renderbufferObject = bindingSlot.GetBoundObject();
+        AllocateRenderbufferStorage_State(renderbufferObject, internalformat, width, height, "RenderbufferStorage_State");
+    }
+
     GLboolean IsRenderbuffer_State(GLuint renderbuffer) {
         return MG_State::pGLContext->ValidateRenderbufferName(renderbuffer);
     }
@@ -67,7 +104,86 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void GetFramebufferAttachmentParameteriv_State(GLenum target, GLenum attachment, GLenum pname, GLint* params) {
-        // TODO: implement
+        if (params == nullptr) return;
+        if (target == GL_FRAMEBUFFER) {
+            target = GL_DRAW_FRAMEBUFFER;
+        }
+
+        FramebufferTarget framebufferTarget = MG_Util::ConvertGLEnumToFramebufferTarget(target);
+        if (!FramebufferImpl::ValidateFramebufferTarget(framebufferTarget)) return;
+
+        const Bool depthStencilAlias = attachment == GL_DEPTH_STENCIL_ATTACHMENT;
+        FramebufferAttachmentType attachmentType = depthStencilAlias
+            ? FramebufferAttachmentType::Depth
+            : MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
+        if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
+
+        auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(framebufferTarget);
+        auto& framebufferObject = bindingSlot.GetBoundObject();
+        if (!framebufferObject) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "GetFramebufferAttachmentParameteriv_State",
+                                             "Framebuffer target is bound to no framebuffer object."));
+            return;
+        }
+
+        const auto* attachmentObject = [&]() -> const MG_State::GLState::FramebufferAttachmentObject* {
+            if (!depthStencilAlias) {
+                return &framebufferObject->GetAttachment(attachmentType);
+            }
+
+            const auto& depthAttachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Depth);
+            if (depthAttachment.IsValid() && !depthAttachment.IsEmpty()) return &depthAttachment;
+
+            const auto& stencilAttachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Stencil);
+            if (stencilAttachment.IsValid() && !stencilAttachment.IsEmpty()) return &stencilAttachment;
+
+            return nullptr;
+        }();
+
+        switch (pname) {
+        case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
+            if (attachmentObject == nullptr || attachmentObject->IsEmpty() || !attachmentObject->IsValid()) {
+                *params = GL_NONE;
+            } else if (attachmentObject->IsTexture()) {
+                *params = GL_TEXTURE;
+            } else if (attachmentObject->IsRenderbuffer()) {
+                *params = GL_RENDERBUFFER;
+            } else {
+                *params = GL_NONE;
+            }
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
+            if (attachmentObject == nullptr || attachmentObject->IsEmpty() || !attachmentObject->IsValid()) {
+                *params = 0;
+            } else if (attachmentObject->IsTexture()) {
+                const auto& textureObject = attachmentObject->GetTexture();
+                *params = textureObject ? static_cast<GLint>(textureObject->GetExternalIndex()) : 0;
+            } else if (attachmentObject->IsRenderbuffer()) {
+                const auto& renderbufferObject = attachmentObject->GetRenderbuffer();
+                *params = renderbufferObject ? static_cast<GLint>(renderbufferObject->GetExternalIndex()) : 0;
+            } else {
+                *params = 0;
+            }
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
+            *params = (attachmentObject != nullptr && attachmentObject->IsTexture() && attachmentObject->IsValid())
+                ? static_cast<GLint>(attachmentObject->GetTextureLevel())
+                : 0;
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
+            *params = 0;
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", "GetFramebufferAttachmentParameteriv_State",
+                    std::format("pname {} is not an accepted value.", MG_Util::ConvertGLEnumToString(pname))));
+            return;
+        }
     }
 
     void GenRenderbuffers_State(GLsizei n, GLuint* renderbuffers) {
@@ -77,11 +193,55 @@ namespace MobileGL::MG_Impl::GLImpl {
                 MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "GenRenderbuffers_State", "n must be non-negative"));
             return;
         }
-        static thread_local Vector<GLuint> renderbufferNames;
+        Vector<GLuint> renderbufferNames;
         MG_State::pGLContext->GenRenderbufferNames(n, renderbufferNames);
         Memcpy(renderbuffers, renderbufferNames.data(), sizeof(GLuint) * static_cast<SizeT>(n));
     }
 
+    void CreateRenderbuffers_State(GLsizei n, GLuint* renderbuffers) {
+        if (n < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CreateRenderbuffers_State", "n must be non-negative"));
+            return;
+        }
+        if (n > 0 && !renderbuffers) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CreateRenderbuffers_State",
+                                             "Renderbuffer output pointer cannot be null."));
+            return;
+        }
+
+        Vector<GLuint> renderbufferNames;
+        MG_State::pGLContext->GenRenderbufferNames(static_cast<Uint>(n), renderbufferNames);
+        for (GLsizei i = 0; i < n; ++i) {
+            renderbuffers[i] = renderbufferNames[i];
+            MG_State::pGLContext->CreateRenderbufferObject(renderbufferNames[i]);
+        }
+    }
+
+    SharedPtr<MG_State::GLState::RenderbufferObject> GetNamedRenderbufferObject_State(GLuint renderbuffer,
+                                                                                     const char* caller) {
+        if (!FramebufferImpl::ValidateRenderbufferName(renderbuffer, false)) return nullptr;
+
+        auto& renderbufferObject = MG_State::pGLContext->GetRenderbufferObject(renderbuffer);
+        if (!renderbufferObject) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                             std::format("Renderbuffer object {} does not exist.", renderbuffer)));
+            return nullptr;
+        }
+        return renderbufferObject;
+    }
+
+    void NamedRenderbufferStorage_State(GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) {
+        auto renderbufferObject = GetNamedRenderbufferObject_State(renderbuffer, "NamedRenderbufferStorage_State");
+        AllocateRenderbufferStorage_State(renderbufferObject, internalformat, width, height,
+                                          "NamedRenderbufferStorage_State");
+    }
+
     void GenFramebuffers_State(GLsizei n, GLuint* framebuffers) {
         if (n < 0) {
             MG_State::pGLContext->RecordError(
@@ -89,11 +249,49 @@ namespace MobileGL::MG_Impl::GLImpl {
                 MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "GenFramebuffers_State", "n must be non-negative"));
             return;
         }
-        static thread_local Vector<GLuint> framebuffersNames;
+        Vector<GLuint> framebuffersNames;
         MG_State::pGLContext->GenFramebufferNames(n, framebuffersNames);
         Memcpy(framebuffers, framebuffersNames.data(), sizeof(GLuint) * static_cast<SizeT>(n));
     }
 
+    void CreateFramebuffers_State(GLsizei n, GLuint* framebuffers) {
+        if (n < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CreateFramebuffers_State", "n must be non-negative"));
+            return;
+        }
+        if (n > 0 && !framebuffers) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CreateFramebuffers_State",
+                                             "Framebuffer output pointer cannot be null."));
+            return;
+        }
+
+        Vector<GLuint> framebufferNames;
+        MG_State::pGLContext->GenFramebufferNames(static_cast<Uint>(n), framebufferNames);
+        for (GLsizei i = 0; i < n; ++i) {
+            framebuffers[i] = framebufferNames[i];
+            MG_State::pGLContext->CreateFramebufferObject(framebufferNames[i]);
+        }
+    }
+
+    SharedPtr<MG_State::GLState::FramebufferObject> GetNamedFramebufferObject_State(GLuint framebuffer,
+                                                                                   const char* caller) {
+        if (!FramebufferImpl::ValidateFramebufferName(framebuffer, false)) return nullptr;
+
+        auto& framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+        if (!framebufferObject) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                             std::format("Framebuffer object {} does not exist.", framebuffer)));
+            return nullptr;
+        }
+        return framebufferObject;
+    }
+
     void FramebufferTextureLayer_State(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer) {
         // TODO: implement
     }
@@ -111,6 +309,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
             FramebufferTexture2D_State(target, GL_DEPTH_ATTACHMENT, textarget, texture, level);
             FramebufferTexture2D_State(target, GL_STENCIL_ATTACHMENT, textarget, texture, level);
+            return;
         }
 
         FramebufferAttachmentType attachmentType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
@@ -152,7 +351,38 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void FramebufferTexture_State(GLenum target, GLenum attachment, GLuint texture, GLint level) {
-        // TODO: implement
+        FramebufferTexture2D_State(target, attachment, GL_TEXTURE_2D, texture, level);
+    }
+
+    void NamedFramebufferTexture_State(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level) {
+        if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+            NamedFramebufferTexture_State(framebuffer, GL_DEPTH_ATTACHMENT, texture, level);
+            NamedFramebufferTexture_State(framebuffer, GL_STENCIL_ATTACHMENT, texture, level);
+            return;
+        }
+
+        auto framebufferObject = GetNamedFramebufferObject_State(framebuffer, "NamedFramebufferTexture_State");
+        if (!framebufferObject) return;
+
+        FramebufferAttachmentType attachmentType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
+        if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
+        if (!TextureImpl::ValidateTextureName(texture, true)) return;
+
+        if (texture == 0) {
+            framebufferObject->Detach(attachmentType);
+            return;
+        }
+
+        auto& textureObject = MG_State::pGLContext->GetTextureObject(texture);
+        if (!textureObject) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "NamedFramebufferTexture_State",
+                                             std::format("Texture object {} is not valid.", texture)));
+            return;
+        }
+
+        framebufferObject->AttachTexture(attachmentType, textureObject, level);
     }
 
     void FramebufferRenderbuffer_State(GLenum target, GLenum attachment, GLenum renderbuffertarget,
@@ -194,7 +424,37 @@ namespace MobileGL::MG_Impl::GLImpl {
         framebufferObject->AttachRenderbuffer(attachmentType, renderbufferObject);
     }
 
-    void DrawBuffers_State(GLsizei n, const GLenum* bufs) {
+    void NamedFramebufferRenderbuffer_State(GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget,
+                                            GLuint renderbuffer) {
+        if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+            NamedFramebufferRenderbuffer_State(framebuffer, GL_DEPTH_ATTACHMENT, renderbuffertarget, renderbuffer);
+            NamedFramebufferRenderbuffer_State(framebuffer, GL_STENCIL_ATTACHMENT, renderbuffertarget, renderbuffer);
+            return;
+        }
+
+        auto framebufferObject = GetNamedFramebufferObject_State(framebuffer, "NamedFramebufferRenderbuffer_State");
+        if (!framebufferObject) return;
+
+        FramebufferAttachmentType attachmentType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
+        RenderbufferTarget rbTarget = MG_Util::ConvertGLEnumToRenderbufferTarget(renderbuffertarget);
+        if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
+        if (!FramebufferImpl::ValidateRenderbufferTarget(rbTarget)) return;
+        if (!FramebufferImpl::ValidateRenderbufferName(renderbuffer)) return;
+
+        if (renderbuffer == 0) {
+            framebufferObject->Detach(attachmentType);
+            return;
+        }
+
+        auto renderbufferObject =
+            GetNamedRenderbufferObject_State(renderbuffer, "NamedFramebufferRenderbuffer_State");
+        if (!renderbufferObject) return;
+
+        framebufferObject->AttachRenderbuffer(attachmentType, renderbufferObject);
+    }
+
+    void DrawBuffersForFramebuffer_State(const SharedPtr<MG_State::GLState::FramebufferObject>& fbo, Bool isDefaultFBO,
+                                         GLsizei n, const GLenum* bufs) {
         if (n < 0) {
             MG_State::pGLContext->RecordError(
                 ErrorCode::InvalidValue,
@@ -206,11 +466,12 @@ namespace MobileGL::MG_Impl::GLImpl {
                 MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "`n` is greater than `GL_MAX_DRAW_BUFFERS`."));
             return;
         }
-
+        if (!fbo) {
-        // Get bound framebuffer
+            MG_State::pGLContext->RecordError(ErrorCode::InvalidOperation,
-        auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw);
+                                              MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
-        auto& fbo = bindingSlot.GetBoundObject();
+                                                                           "Framebuffer object is null."));
-        bool isDefaultFBO = (fbo == FramebufferImpl::pDefaultFramebufferInfo->defaultFBO);
+            return;
+        }
 
         static int existenceMap[(SizeT)FramebufferAttachmentType::FramebufferAttachmentTypeCount] = {-1};
         std::fill(existenceMap, existenceMap + (SizeT)FramebufferAttachmentType::FramebufferAttachmentTypeCount, -1);
@@ -283,6 +544,13 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
     }
 
+    void DrawBuffers_State(GLsizei n, const GLenum* bufs) {
+        auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw);
+        auto& fbo = bindingSlot.GetBoundObject();
+        const bool isDefaultFBO = (fbo == FramebufferImpl::pDefaultFramebufferInfo->defaultFBO);
+        DrawBuffersForFramebuffer_State(fbo, isDefaultFBO, n, bufs);
+    }
+
     void DrawBuffer_State(GLenum buf) {
         if (buf == GL_NONE) {
             DrawBuffers_State(0, nullptr);
@@ -311,6 +579,114 @@ namespace MobileGL::MG_Impl::GLImpl {
         fbo->SetReadBuffer(attType);
     }
 
+    void NamedFramebufferDrawBuffers_State(GLuint framebuffer, GLsizei n, const GLenum* bufs) {
+        auto framebufferObject = GetNamedFramebufferObject_State(framebuffer, "NamedFramebufferDrawBuffers_State");
+        if (!framebufferObject) return;
+        DrawBuffersForFramebuffer_State(framebufferObject, false, n, bufs);
+    }
+
+    void NamedFramebufferDrawBuffer_State(GLuint framebuffer, GLenum buf) {
+        if (buf == GL_NONE) {
+            NamedFramebufferDrawBuffers_State(framebuffer, 0, nullptr);
+        } else {
+            GLenum bufs[] = {buf};
+            NamedFramebufferDrawBuffers_State(framebuffer, 1, bufs);
+        }
+    }
+
+    void NamedFramebufferReadBuffer_State(GLuint framebuffer, GLenum src) {
+        auto framebufferObject = GetNamedFramebufferObject_State(framebuffer, "NamedFramebufferReadBuffer_State");
+        if (!framebufferObject) return;
+
+        auto attType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(src);
+        if (attType == FramebufferAttachmentType::Unknown) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", "NamedFramebufferReadBuffer_State",
+                    std::format("`src` = {} is not an accepted value.", MG_Util::ConvertGLEnumToString(src))));
+            return;
+        }
+        framebufferObject->SetReadBuffer(attType);
+    }
+
+    SharedPtr<MG_State::GLState::FramebufferObject> GetFramebufferObjectForNamedClear(GLuint framebuffer,
+                                                                                      const char* caller) {
+        return framebuffer == 0 ? FramebufferImpl::pDefaultFramebufferInfo->defaultFBO
+                                : GetNamedFramebufferObject_State(framebuffer, caller);
+    }
+
+    Bool ValidateNamedClearfv_State(GLenum buffer, GLint drawbuffer, const GLfloat* value, const char* caller) {
+        if (!value) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "value pointer cannot be null."));
+            return false;
+        }
+
+        switch (buffer) {
+        case GL_COLOR:
+            if (drawbuffer < 0 ||
+                drawbuffer >= static_cast<GLint>(MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS)) {
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidValue,
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "color drawbuffer index is out of range."));
+                return false;
+            }
+            return true;
+        case GL_DEPTH:
+            if (drawbuffer != 0) {
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidValue,
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "depth clear requires drawbuffer 0."));
+                return false;
+            }
+            return true;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", caller,
+                    std::format("buffer {} is not accepted for glClearNamedFramebufferfv.",
+                                MG_Util::ConvertGLEnumToString(buffer))));
+            return false;
+        }
+    }
+
+    Bool ValidateNamedClearfi_State(GLenum buffer, GLint drawbuffer, const char* caller) {
+        if (buffer != GL_DEPTH_STENCIL) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", caller,
+                    std::format("buffer {} is not accepted for glClearNamedFramebufferfi.",
+                                MG_Util::ConvertGLEnumToString(buffer))));
+            return false;
+        }
+        if (drawbuffer != 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "depth/stencil clear requires drawbuffer 0."));
+            return false;
+        }
+        return true;
+    }
+
+    void ClearNamedFramebufferfv_State(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value) {
+        auto framebufferObject = GetFramebufferObjectForNamedClear(framebuffer, "ClearNamedFramebufferfv_State");
+        if (!framebufferObject) return;
+        if (!ValidateNamedClearfv_State(buffer, drawbuffer, value, "ClearNamedFramebufferfv_State")) return;
+        ClearNamedFramebufferfv_Backend(framebufferObject, buffer, drawbuffer, value);
+    }
+
+    void ClearNamedFramebufferfi_State(GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth,
+                                      GLint stencil) {
+        auto framebufferObject = GetFramebufferObjectForNamedClear(framebuffer, "ClearNamedFramebufferfi_State");
+        if (!framebufferObject) return;
+        if (!ValidateNamedClearfi_State(buffer, drawbuffer, "ClearNamedFramebufferfi_State")) return;
+        ClearNamedFramebufferfi_Backend(framebufferObject, buffer, drawbuffer, depth, stencil);
+    }
+
     void DeleteRenderbuffers_State(GLsizei n, const GLuint* renderbuffers) {
         if (n < 0) {
             MG_State::pGLContext->RecordError(
@@ -376,7 +752,117 @@ namespace MobileGL::MG_Impl::GLImpl {
         //       GL_FRAMEBUFFER_UNSUPPORTED, GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE,
         //       GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS
         return framebufferObject->CheckCompleteness() ? GL_FRAMEBUFFER_COMPLETE
-                                                      : GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
+                                                       : GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
+    }
+
+    GLenum CheckNamedFramebufferStatus_State(GLuint framebuffer, GLenum target) {
+        if (target != GL_FRAMEBUFFER && target != GL_DRAW_FRAMEBUFFER && target != GL_READ_FRAMEBUFFER) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CheckNamedFramebufferStatus_State",
+                                             std::format("target {} is not accepted.",
+                                                         MG_Util::ConvertGLEnumToString(target))));
+            return GL_FRAMEBUFFER_UNDEFINED;
+        }
+
+        auto framebufferObject = GetNamedFramebufferObject_State(framebuffer, "CheckNamedFramebufferStatus_State");
+        if (!framebufferObject) return GL_FRAMEBUFFER_UNDEFINED;
+
+        return framebufferObject->CheckCompleteness() ? GL_FRAMEBUFFER_COMPLETE
+                                                       : GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
+    }
+
+    void GetFramebufferAttachmentParameteriv_Object(
+        const SharedPtr<MG_State::GLState::FramebufferObject>& framebufferObject, GLenum attachment, GLenum pname,
+        GLint* params, const char* caller) {
+        if (params == nullptr) return;
+
+        const Bool depthStencilAlias = attachment == GL_DEPTH_STENCIL_ATTACHMENT;
+        FramebufferAttachmentType attachmentType = depthStencilAlias
+            ? FramebufferAttachmentType::Depth
+            : MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
+        if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
+
+        const auto* attachmentObject = [&]() -> const MG_State::GLState::FramebufferAttachmentObject* {
+            if (!depthStencilAlias) {
+                return &framebufferObject->GetAttachment(attachmentType);
+            }
+
+            const auto& depthAttachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Depth);
+            if (depthAttachment.IsValid() && !depthAttachment.IsEmpty()) return &depthAttachment;
+
+            const auto& stencilAttachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Stencil);
+            if (stencilAttachment.IsValid() && !stencilAttachment.IsEmpty()) return &stencilAttachment;
+
+            return nullptr;
+        }();
+
+        switch (pname) {
+        case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE:
+            if (attachmentObject == nullptr || attachmentObject->IsEmpty() || !attachmentObject->IsValid()) {
+                *params = GL_NONE;
+            } else if (attachmentObject->IsTexture()) {
+                *params = GL_TEXTURE;
+            } else if (attachmentObject->IsRenderbuffer()) {
+                *params = GL_RENDERBUFFER;
+            } else {
+                *params = GL_NONE;
+            }
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
+            if (attachmentObject == nullptr || attachmentObject->IsEmpty() || !attachmentObject->IsValid()) {
+                *params = 0;
+            } else if (attachmentObject->IsTexture()) {
+                const auto& textureObject = attachmentObject->GetTexture();
+                *params = textureObject ? static_cast<GLint>(textureObject->GetExternalIndex()) : 0;
+            } else if (attachmentObject->IsRenderbuffer()) {
+                const auto& renderbufferObject = attachmentObject->GetRenderbuffer();
+                *params = renderbufferObject ? static_cast<GLint>(renderbufferObject->GetExternalIndex()) : 0;
+            } else {
+                *params = 0;
+            }
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL:
+            *params = (attachmentObject != nullptr && attachmentObject->IsTexture() && attachmentObject->IsValid())
+                ? static_cast<GLint>(attachmentObject->GetTextureLevel())
+                : 0;
+            break;
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE:
+        case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER:
+            *params = 0;
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", caller,
+                    std::format("pname {} is not an accepted value.", MG_Util::ConvertGLEnumToString(pname))));
+            return;
+        }
+    }
+
+    void GetNamedFramebufferAttachmentParameteriv_State(GLuint framebuffer, GLenum attachment, GLenum pname,
+                                                       GLint* params) {
+        auto framebufferObject =
+            GetNamedFramebufferObject_State(framebuffer, "GetNamedFramebufferAttachmentParameteriv_State");
+        if (!framebufferObject) return;
+        GetFramebufferAttachmentParameteriv_Object(framebufferObject, attachment, pname, params,
+                                                  "GetNamedFramebufferAttachmentParameteriv_State");
+    }
+
+    void BlitNamedFramebuffer_State(GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0,
+                                   GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                                   GLbitfield mask, GLenum filter) {
+        auto readObject = readFramebuffer == 0
+            ? FramebufferImpl::pDefaultFramebufferInfo->defaultFBO
+            : GetNamedFramebufferObject_State(readFramebuffer, "BlitNamedFramebuffer_State");
+        auto drawObject = drawFramebuffer == 0
+            ? FramebufferImpl::pDefaultFramebufferInfo->defaultFBO
+            : GetNamedFramebufferObject_State(drawFramebuffer, "BlitNamedFramebuffer_State");
+        if (!readObject || !drawObject) return;
+
+        BlitNamedFramebuffer_Backend(readObject, drawObject, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1,
+                                     mask, filter);
     }
 
     void BindRenderbuffer_State(GLenum target, GLuint renderbuffer) {
@@ -415,18 +901,15 @@ namespace MobileGL::MG_Impl::GLImpl {
         bindingSlot.Bind(framebufferObject);
     }
 
-    void GetRenderbufferParameteriv_State(GLenum target, GLenum pname, GLint* params) {
+    void GetRenderbufferParameterivForObject_State(const SharedPtr<MG_State::GLState::RenderbufferObject>&
+                                                       renderbufferObject,
+                                                   GLenum pname, GLint* params, const char* caller) {
         if (!params) return;
 
-        RenderbufferTarget renderbufferTarget = MG_Util::ConvertGLEnumToRenderbufferTarget(target);
-        if (!FramebufferImpl::ValidateRenderbufferTarget(renderbufferTarget)) return;
-        auto& bindingSlot = MG_State::pGLContext->GetRenderbufferBindingSlot(renderbufferTarget);
-        auto& renderbufferObject = bindingSlot.GetBoundObject();
         if (!renderbufferObject) {
             MG_State::pGLContext->RecordError(
                 ErrorCode::InvalidOperation,
-                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "GetRenderbufferParameteriv_State",
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "No renderbuffer object is available."));
-                                             "Renderbuffer target is bound to no renderbuffer object."));
             return;
         }
 
@@ -465,12 +948,27 @@ namespace MobileGL::MG_Impl::GLImpl {
             MG_State::pGLContext->RecordError(
                 ErrorCode::InvalidEnum,
                 MakeUnique<GenericErrorInfo>(
-                    "MG_Impl/GLImpl", "GetRenderbufferParameteriv_State",
+                    "MG_Impl/GLImpl", caller,
                     std::format("pname {} is not an accepted value.", MG_Util::ConvertGLEnumToString(pname))));
             return;
         }
     }
 
+    void GetRenderbufferParameteriv_State(GLenum target, GLenum pname, GLint* params) {
+        RenderbufferTarget renderbufferTarget = MG_Util::ConvertGLEnumToRenderbufferTarget(target);
+        if (!FramebufferImpl::ValidateRenderbufferTarget(renderbufferTarget)) return;
+        auto& bindingSlot = MG_State::pGLContext->GetRenderbufferBindingSlot(renderbufferTarget);
+        auto& renderbufferObject = bindingSlot.GetBoundObject();
+        GetRenderbufferParameterivForObject_State(renderbufferObject, pname, params, "GetRenderbufferParameteriv_State");
+    }
+
+    void GetNamedRenderbufferParameteriv_State(GLuint renderbuffer, GLenum pname, GLint* params) {
+        auto renderbufferObject =
+            GetNamedRenderbufferObject_State(renderbuffer, "GetNamedRenderbufferParameteriv_State");
+        GetRenderbufferParameterivForObject_State(renderbufferObject, pname, params,
+                                                 "GetNamedRenderbufferParameteriv_State");
+    }
+
     void ClearBufferfi_Backend(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {
         MG_Backend::gBackendFunctionsTable.GL.ClearBufferfi(buffer, drawbuffer, depth, stencil);
     }
@@ -576,8 +1074,9 @@ namespace MobileGL::MG_Impl::GLImpl {
             MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::PixelPack).GetBoundObject();
 
         if (pixelPackBufferObject) {
-            // Check if PBO is mapped
+            // Persistent mappings remain legal GPU transfer destinations.
-            if (pixelPackBufferObject->IsMapped()) {
+            if (pixelPackBufferObject->IsMapped() &&
+                !(pixelPackBufferObject->GetMappingAccess() & BufferMappingAccessBit::Persistent)) {
                 MG_State::pGLContext->RecordError(
                     ErrorCode::InvalidOperation, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "ReadPixels_State",
                                                                               "Pixel pack buffer is currently mapped"));
@@ -663,10 +1162,26 @@ namespace MobileGL::MG_Impl::GLImpl {
         GenRenderbuffers_State(n, renderbuffers);
     }
 
+    void CreateRenderbuffers(GLsizei n, GLuint* renderbuffers) {
+        CreateRenderbuffers_State(n, renderbuffers);
+    }
+
+    void NamedRenderbufferStorage(GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height) {
+        NamedRenderbufferStorage_State(renderbuffer, internalformat, width, height);
+    }
+
+    void GetNamedRenderbufferParameteriv(GLuint renderbuffer, GLenum pname, GLint* params) {
+        GetNamedRenderbufferParameteriv_State(renderbuffer, pname, params);
+    }
+
     void GenFramebuffers(GLsizei n, GLuint* framebuffers) {
         GenFramebuffers_State(n, framebuffers);
     }
 
+    void CreateFramebuffers(GLsizei n, GLuint* framebuffers) {
+        CreateFramebuffers_State(n, framebuffers);
+    }
+
     void FramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer) {
         FramebufferTextureLayer_State(target, attachment, texture, level, layer);
     }
@@ -688,10 +1203,39 @@ namespace MobileGL::MG_Impl::GLImpl {
         FramebufferTexture_State(target, attachment, texture, level);
     }
 
+    void NamedFramebufferTexture(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level) {
+        NamedFramebufferTexture_State(framebuffer, attachment, texture, level);
+    }
+
+    void NamedFramebufferDrawBuffer(GLuint framebuffer, GLenum buf) {
+        NamedFramebufferDrawBuffer_State(framebuffer, buf);
+    }
+
+    void NamedFramebufferDrawBuffers(GLuint framebuffer, GLsizei n, const GLenum* bufs) {
+        NamedFramebufferDrawBuffers_State(framebuffer, n, bufs);
+    }
+
+    void NamedFramebufferReadBuffer(GLuint framebuffer, GLenum src) {
+        NamedFramebufferReadBuffer_State(framebuffer, src);
+    }
+
+    void ClearNamedFramebufferfv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value) {
+        ClearNamedFramebufferfv_State(framebuffer, buffer, drawbuffer, value);
+    }
+
+    void ClearNamedFramebufferfi(GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {
+        ClearNamedFramebufferfi_State(framebuffer, buffer, drawbuffer, depth, stencil);
+    }
+
     void FramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) {
         FramebufferRenderbuffer_State(target, attachment, renderbuffertarget, renderbuffer);
     }
 
+    void NamedFramebufferRenderbuffer(GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget,
+                                      GLuint renderbuffer) {
+        NamedFramebufferRenderbuffer_State(framebuffer, attachment, renderbuffertarget, renderbuffer);
+    }
+
     void DrawBuffer(GLenum buf) {
         DrawBuffer_State(buf);
     }
@@ -716,6 +1260,21 @@ namespace MobileGL::MG_Impl::GLImpl {
         return CheckFramebufferStatus_State(target);
     }
 
+    GLenum CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target) {
+        return CheckNamedFramebufferStatus_State(framebuffer, target);
+    }
+
+    void GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params) {
+        GetNamedFramebufferAttachmentParameteriv_State(framebuffer, attachment, pname, params);
+    }
+
+    void BlitNamedFramebuffer(GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1,
+                              GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask,
+                              GLenum filter) {
+        BlitNamedFramebuffer_State(readFramebuffer, drawFramebuffer, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1,
+                                   dstY1, mask, filter);
+    }
+
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
                          GLint dstY1, GLbitfield mask, GLenum filter) {
         BlitFramebuffer_Backend(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);

MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h

@@ -24,19 +24,36 @@ namespace MobileGL::MG_Impl::GLImpl {
     GLboolean IsRenderbuffer(GLuint renderbuffer);
     void GetRenderbufferParameteriv(GLenum target, GLenum pname, GLint* params);
     void GenRenderbuffers(GLsizei n, GLuint* renderbuffers);
+    void CreateRenderbuffers(GLsizei n, GLuint* renderbuffers);
+    void NamedRenderbufferStorage(GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height);
+    void GetNamedRenderbufferParameteriv(GLuint renderbuffer, GLenum pname, GLint* params);
     void FramebufferRenderbuffer(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+    void NamedFramebufferRenderbuffer(GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget,
+                                      GLuint renderbuffer);
     void DeleteRenderbuffers(GLsizei n, const GLuint* renderbuffers);
     void BindRenderbuffer(GLenum target, GLuint renderbuffer);
     void SampleMaski(GLuint maskNumber, GLbitfield mask);
     GLboolean IsFramebuffer(GLuint framebuffer);
     void GetFramebufferAttachmentParameteriv(GLenum target, GLenum attachment, GLenum pname, GLint* params);
     void GenFramebuffers(GLsizei n, GLuint* framebuffers);
+    void CreateFramebuffers(GLsizei n, GLuint* framebuffers);
     void FramebufferTextureLayer(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
     void FramebufferTexture3D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level,
                               GLint zoffset);
     void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
     void FramebufferTexture1D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
     void FramebufferTexture(GLenum target, GLenum attachment, GLuint texture, GLint level);
+    void NamedFramebufferTexture(GLuint framebuffer, GLenum attachment, GLuint texture, GLint level);
+    void NamedFramebufferDrawBuffer(GLuint framebuffer, GLenum buf);
+    void NamedFramebufferDrawBuffers(GLuint framebuffer, GLsizei n, const GLenum* bufs);
+    void NamedFramebufferReadBuffer(GLuint framebuffer, GLenum src);
+    void ClearNamedFramebufferfv(GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat* value);
+    void ClearNamedFramebufferfi(GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+    GLenum CheckNamedFramebufferStatus(GLuint framebuffer, GLenum target);
+    void GetNamedFramebufferAttachmentParameteriv(GLuint framebuffer, GLenum attachment, GLenum pname, GLint* params);
+    void BlitNamedFramebuffer(GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1,
+                              GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask,
+                              GLenum filter);
     void DrawBuffer(GLenum buf);
     void DrawBuffers(GLsizei n, const GLenum* bufs);
     void ReadBuffer(GLenum src);

MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp

@@ -76,12 +76,12 @@ namespace MobileGL::MG_Impl::GLImpl {
             MGLOG_D("shadingLanguageVersion: %s", shadingLanguageVersion.c_str());
             return (const GLubyte*)shadingLanguageVersion.c_str();
         case GL_EXTENSIONS:
-            if (extensionsString.empty()) {
+             extensionsString.clear();
-                for (auto& ext : rendererInfo.RendererGLInfo.Extensions) {
+            for (auto& ext : rendererInfo.RendererGLInfo.Extensions) {
-                    extensionsString += MG_Util::ConvertGLExtToString(ext);
+                if (!extensionsString.empty()) {
                     extensionsString += " ";
                 }
-                extensionsString.pop_back();
+                extensionsString += MG_Util::ConvertGLExtToString(ext);
             }
             return (const GLubyte*)extensionsString.c_str();
         default:
@@ -108,18 +108,89 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
 
         static Vector<String> extStrings;
-        static Bool initialized = false;
+        extStrings.clear();
-        if (!initialized) {
+        extStrings.reserve(exts.size());
-            extStrings.reserve(exts.size());
+        for (const auto& ext : exts) {
-            for (const auto& ext : exts) {
+            extStrings.emplace_back(MG_Util::ConvertGLExtToString(ext));
-                extStrings.emplace_back(MG_Util::ConvertGLExtToString(ext));
-            }
-            initialized = true;
         }
 
         return (const GLubyte*)extStrings[index].c_str();
     }
 
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data) {
+        if (!data) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "data pointer cannot be null"));
+            return;
+        }
+        auto getIntegeri = MG_Backend::gBackendFunctionsTable.GL.GetIntegeri_v;
+        if (!getIntegeri) {
+            *data = 0;
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Backend does not support indexed integer queries."));
+            return;
+        }
+        getIntegeri(target, index, data);
+    }
+
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data) {
+        if (!data) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "data pointer cannot be null"));
+            return;
+        }
+        auto getInteger64i = MG_Backend::gBackendFunctionsTable.GL.GetInteger64i_v;
+        if (!getInteger64i) {
+            *data = 0;
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Backend does not support indexed integer queries."));
+            return;
+        }
+        getInteger64i(target, index, data);
+    }
+
+    void GetInteger64v(GLenum pname, GLint64* data) {
+        MGLOG_D("glGetInteger64v, pname: %s", MG_Util::ConvertGLEnumToString(pname).c_str());
+        if (!data) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "data pointer cannot be null"));
+            return;
+        }
+
+        switch (pname) {
+        case GL_MAX_SHADER_STORAGE_BLOCK_SIZE:
+            if (MG_Backend::pActiveBackendObject) {
+                *data = static_cast<GLint64>(
+                    MG_Backend::pActiveBackendObject->GetDynamicParameters().MaxShaderStorageBlockSize);
+            } else {
+                *data = static_cast<GLint64>(MG_Backend::DynamicBackendParameters{}.MaxShaderStorageBlockSize);
+            }
+            return;
+        case GL_SUBGROUP_SIZE_KHR:
+        case GL_SUBGROUP_SUPPORTED_STAGES_KHR:
+        case GL_SUBGROUP_SUPPORTED_FEATURES_KHR:
+        case GL_SUBGROUP_QUAD_ALL_STAGES_KHR: {
+            GLint params = 0;
+            GetIntegerv(pname, &params);
+            *data = static_cast<GLint64>(params);
+            return;
+        }
+        default:
+            *data = 0;
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             std::format("Unsupported integer64 pname {}.",
+                                                         MG_Util::ConvertGLEnumToString(pname))));
+            return;
+        }
+    }
+
     void GetIntegerv(GLenum pname, GLint* params) {
         MGLOG_D("glGetIntegerv, pname: %s", MG_Util::ConvertGLEnumToString(pname).c_str());
         if (!params) {
@@ -135,6 +206,7 @@ namespace MobileGL::MG_Impl::GLImpl {
             return;
         }
         const auto& rendererInfo = activeBackendObject->GetRendererInfo();
+        const auto& dynamicParameters = activeBackendObject->GetDynamicParameters();
 
         switch (pname) {
         case GL_ACTIVE_TEXTURE:
@@ -160,31 +232,39 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_BLEND_DST_ALPHA: {
             BlendFactor srcRGB, dstRGB, srcAlpha, dstAlpha;
             MG_State::pGLContext->GetBlendFunc(srcRGB, dstRGB, srcAlpha, dstAlpha);
-            *params = static_cast<GLint>(dstAlpha);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendFactorToGLEnum(dstAlpha));
             break;
         }
         case GL_BLEND_DST_RGB: {
             BlendFactor srcRGB, dstRGB, srcAlpha, dstAlpha;
             MG_State::pGLContext->GetBlendFunc(srcRGB, dstRGB, srcAlpha, dstAlpha);
-            *params = static_cast<GLint>(dstRGB);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendFactorToGLEnum(dstRGB));
             break;
         }
-        case GL_BLEND_EQUATION_RGB:
+        case GL_BLEND_EQUATION_RGB: {
-            *params = 0; // TODO
+            BlendEquation colorEquation = BlendEquation::Add;
+            BlendEquation alphaEquation = BlendEquation::Add;
+            MG_State::pGLContext->GetBlendEquation(colorEquation, alphaEquation);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendEquationToGLEnum(colorEquation));
             break;
-        case GL_BLEND_EQUATION_ALPHA:
+        }
-            *params = 0; // TODO
+        case GL_BLEND_EQUATION_ALPHA: {
+            BlendEquation colorEquation = BlendEquation::Add;
+            BlendEquation alphaEquation = BlendEquation::Add;
+            MG_State::pGLContext->GetBlendEquation(colorEquation, alphaEquation);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendEquationToGLEnum(alphaEquation));
             break;
+        }
         case GL_BLEND_SRC_ALPHA: {
             BlendFactor srcRGB, dstRGB, srcAlpha, dstAlpha;
             MG_State::pGLContext->GetBlendFunc(srcRGB, dstRGB, srcAlpha, dstAlpha);
-            *params = static_cast<GLint>(srcAlpha);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendFactorToGLEnum(srcAlpha));
             break;
         }
         case GL_BLEND_SRC_RGB: {
             BlendFactor srcRGB, dstRGB, srcAlpha, dstAlpha;
             MG_State::pGLContext->GetBlendFunc(srcRGB, dstRGB, srcAlpha, dstAlpha);
-            *params = static_cast<GLint>(srcRGB);
+            *params = static_cast<GLint>(MG_Util::ConvertBlendFactorToGLEnum(srcRGB));
             break;
         }
         case GL_COLOR_CLEAR_VALUE:
@@ -204,42 +284,60 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_COMPRESSED_TEXTURE_FORMATS:
             *params = 0; // TODO
             break;
+        case GL_SUBGROUP_SIZE_KHR:
+            *params = static_cast<GLint>(dynamicParameters.SubgroupSize);
+            break;
+        case GL_SUBGROUP_SUPPORTED_STAGES_KHR:
+            *params = static_cast<GLint>(dynamicParameters.SubgroupSupportedStages);
+            break;
+        case GL_SUBGROUP_SUPPORTED_FEATURES_KHR:
+            *params = static_cast<GLint>(dynamicParameters.SubgroupSupportedFeatures);
+            break;
+        case GL_SUBGROUP_QUAD_ALL_STAGES_KHR:
+            *params = dynamicParameters.SubgroupQuadOperationsInAllStages ? GL_TRUE : GL_FALSE;
+            break;
         case GL_MAX_COMPUTE_SHADER_STORAGE_BLOCKS:
-            *params = 0; // TODO
+            *params = 16; // TODO: use backend value
             break;
         case GL_MAX_COMBINED_SHADER_STORAGE_BLOCKS:
-            *params = 0; // TODO
+            *params = 96; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_UNIFORM_BLOCKS:
-            *params = 0; // TODO
+            *params = 14; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_TEXTURE_IMAGE_UNITS:
-            *params = 0; // TODO
+            *params = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_UNIFORM_COMPONENTS:
-            *params = 0; // TODO
+            *params = 1024 * 4; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_ATOMIC_COUNTERS:
-            *params = 0; // TODO
+            *params = 8; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS:
-            *params = 0; // TODO
+            *params = 8; // TODO: use backend value
             break;
         case GL_MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS:
-            *params = 0; // TODO
+            *params = 1024 * 228; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS:
-            *params = 0; // TODO
+            *params = 1024; // TODO: use backend value
             break;
         case GL_MAX_COMPUTE_WORK_GROUP_COUNT:
-            *params = 0; // TODO
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, 0, &params[0]);
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, 1, &params[1]);
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, 2, &params[2]);
             break;
         case GL_MAX_COMPUTE_WORK_GROUP_SIZE:
-            *params = 0; // TODO
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_SIZE, 0, &params[0]);
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_SIZE, 1, &params[1]);
+            GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_SIZE, 2, &params[2]);
             break;
-        case GL_DISPATCH_INDIRECT_BUFFER_BINDING:
+        case GL_DISPATCH_INDIRECT_BUFFER_BINDING: {
-            *params = 0; // TODO
+            auto& obj = MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::DispatchIndirect).GetBoundObject();
+            *params = obj ? static_cast<GLint>(obj->GetExternalIndex()) : 0;
             break;
+        }
         case GL_MAX_DEBUG_GROUP_STACK_DEPTH:
             *params = 0; // TODO
             break;
@@ -252,6 +350,12 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_CULL_FACE:
             *params = MG_State::pGLContext->IsCapabilityEnabled(CapabilityInput::CullFace) ? GL_TRUE : GL_FALSE;
             break;
+        case GL_CULL_FACE_MODE:
+            *params = static_cast<GLint>(MG_Util::ConvertCullFaceModeToGLEnum(MG_State::pGLContext->GetCullFaceMode()));
+            break;
+        case GL_FRONT_FACE:
+            *params = static_cast<GLint>(MG_Util::ConvertFrontFaceModeToGLEnum(MG_State::pGLContext->GetFrontFaceMode()));
+            break;
         case GL_CURRENT_PROGRAM: {
             const auto& currentProgram = MG_State::pGLContext->GetCurrentProgram();
             *params = currentProgram ? (GLint)currentProgram->GetExternalIndex() : 0;
@@ -426,6 +530,22 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_MAX_GEOMETRY_UNIFORM_COMPONENTS:
             *params = 1024 * 4; // TODO
             break;
+        case GL_MAX_IMAGE_UNITS:
+            *params = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS; // TODO: use backend value
+            break;
+        case GL_MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS:
+            *params = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS +
+                      MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS;
+            break;
+        case GL_MAX_COMBINED_IMAGE_UNIFORMS:
+            *params = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS; // TODO: use backend value
+            break;
+        case GL_MAX_IMAGE_SAMPLES:
+            *params = 0; // multisampled image load/store is not exposed by the DirectGLES frontend
+            break;
+        case GL_MAX_COMPUTE_IMAGE_UNIFORMS:
+            *params = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS; // TODO: use backend value
+            break;
         case GL_MAX_INTEGER_SAMPLES:
             *params = 16; // TODO
             break;
@@ -571,6 +691,11 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_PIXEL_UNPACK_BUFFER_BINDING:
             *params = 0; // TODO
             break;
+        case GL_PARAMETER_BUFFER_BINDING_ARB: {
+            auto& obj = MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Parameter).GetBoundObject();
+            *params = obj ? static_cast<GLint>(obj->GetExternalIndex()) : 0;
+            break;
+        }
         case GL_POINT_FADE_THRESHOLD_SIZE:
             *params = 0; // TODO
             break;
@@ -587,11 +712,16 @@ namespace MobileGL::MG_Impl::GLImpl {
             *params = MG_State::pGLContext->IsCapabilityEnabled(CapabilityInput::ProgramPointSize) ? GL_TRUE : GL_FALSE;
             break;
         case GL_PROVOKING_VERTEX:
-            *params = 0; // TODO
+            *params = static_cast<GLint>(
+                MG_Util::ConvertProvokingVertexModeToGLEnum(MG_State::pGLContext->GetProvokingVertexMode()));
             break;
         case GL_POINT_SIZE:
             *params = 0; // TODO
             break;
+        case GL_POLYGON_MODE:
+            params[0] = GL_FILL;
+            params[1] = GL_FILL;
+            break;
         case GL_POINT_SIZE_GRANULARITY:
             *params = 0; // TODO
             break;
@@ -659,11 +789,13 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_SHADER_COMPILER:
             *params = 0; // TODO
             break;
-        case GL_SHADER_STORAGE_BUFFER_BINDING:
+        case GL_SHADER_STORAGE_BUFFER_BINDING: {
-            *params = 0; // TODO
+            auto& obj = MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::ShaderStorage).GetBoundObject();
+            *params = obj ? static_cast<GLint>(obj->GetExternalIndex()) : 0;
             break;
+        }
         case GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT:
-            *params = 0; // TODO
+            *params = 256; // TODO: use backend value
             break;
         case GL_SHADER_STORAGE_BUFFER_START:
             *params = 0; // TODO

MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.h

@@ -14,5 +14,8 @@ namespace MobileGL::MG_Impl::GLImpl {
     const GLubyte* GetString(GLenum name);
     const GLubyte* GetStringi(GLenum name, GLuint index);
     void GetIntegerv(GLenum pname, GLint* params);
+    void GetInteger64v(GLenum pname, GLint64* data);
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data);
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data);
     GLenum GetError();
 } // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/GLImpl/Program/GL_Program.cpp

@@ -13,6 +13,7 @@
 #include <MG_Util/Converters/GLToMG/ProgramEnumConverter.h>
 #include <MG_Util/Converters/MGToGL/ProgramEnumConverter.h>
 #include <MG_Util/Converters/SPIRVCrossToGL/SpvcTypeConverter.h>
+#include <MG_Backend/BackendObjects.h>
 
 namespace MobileGL::MG_Impl::GLImpl {
     static bool CheckShaderNameValidity(Uint shader) {
@@ -68,13 +69,15 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void CopyStr(GLsizei bufSize, GLsizei* length, GLchar* dst, const char* src, GLsizei srcLength) {
+        if (bufSize <= 0) {
+            if (length) *length = 0;
+            return;
+        }
+
         auto sz = std::min(bufSize - 1, srcLength);
-        if (length) *length = sz;
-
-        if (bufSize == 0) return;
-
         Memcpy(dst, src, sz);
         dst[sz] = '\0';
+        if (length) *length = sz;
     }
 
     void AttachShader_State(GLuint program, GLuint shader) {
@@ -303,7 +306,23 @@ namespace MobileGL::MG_Impl::GLImpl {
             *params = programObject->GetActiveUniformBlocksMaxNameLength();
             MGLOG_D("%s: %s = %d", __func__, MG_Util::ConvertGLEnumToString(pname).c_str(), *params);
             break;
-        case GL_COMPUTE_WORK_GROUP_SIZE: // GL >= 4.3
+        case GL_COMPUTE_WORK_GROUP_SIZE: { // GL >= 4.3
+            auto getProgramiv = MG_Backend::gBackendFunctionsTable.GL.GetProgramiv;
+            if (!getProgramiv) {
+                params[0] = 1;
+                params[1] = 1;
+                params[2] = 1;
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidOperation,
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                                 "Backend does not support program integer queries."));
+                return;
+            }
+            getProgramiv(program, pname, params);
+            MGLOG_D("%s: %s = (%d, %d, %d)", __func__, MG_Util::ConvertGLEnumToString(pname).c_str(), params[0],
+                    params[1], params[2]);
+            break;
+        }
 
         case GL_PROGRAM_BINARY_LENGTH:
 
@@ -346,10 +365,10 @@ namespace MobileGL::MG_Impl::GLImpl {
             *params = shaderObject->GetCompileStatus();
             break;
         case GL_INFO_LOG_LENGTH:
-            *params = (GLint)shaderObject->GetInfoLog().length();
+            *params = shaderObject->GetInfoLog().empty() ? 0 : (GLint)shaderObject->GetInfoLog().length() + 1;
             break;
         case GL_SHADER_SOURCE_LENGTH:
-            *params = (GLint)shaderObject->GetShaderSource().length();
+            *params = shaderObject->GetShaderSource().empty() ? 0 : (GLint)shaderObject->GetShaderSource().length() + 1;
             break;
         default:
             MG_State::pGLContext->RecordError(
@@ -462,7 +481,8 @@ namespace MobileGL::MG_Impl::GLImpl {
          * A program object marked for deletion with glDeleteProgram but still in use as part of current
          * rendering state is still considered a program object and glIsProgram will return GL_TRUE.
          */
-        return CheckProgramNameValidity(program);
+        if (program == 0) return GL_FALSE;
+        return MG_State::pGLContext->ValidateProgramName(program) ? GL_TRUE : GL_FALSE;
     }
 
     GLboolean IsShader_State(GLuint shader) {
@@ -470,7 +490,8 @@ namespace MobileGL::MG_Impl::GLImpl {
          * A shader object marked for deletion with glDeleteShader but still attached to a program object is still
          * considered a shader object and glIsShader will return GL_TRUE.
          */
-        return CheckShaderNameValidity(shader);
+        if (shader == 0) return GL_FALSE;
+        return MG_State::pGLContext->ValidateShaderName(shader) ? GL_TRUE : GL_FALSE;
     }
 
     void LinkProgram_State(GLuint program) {
@@ -506,7 +527,10 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         std::string src;
         for (GLsizei i = 0; i < count; i++) {
-            src += (length == nullptr || length[i] <= 0) ? string[i] : std::string(string[i], length[i]);
+            if (!string[i]) {
+                continue;
+            }
+            src += (length && length[i] >= 0) ? std::string(string[i], length[i]) : std::string(string[i]);
         }
         shaderObject->SetShaderSource(Move(src));
     }
@@ -541,6 +565,9 @@ namespace MobileGL::MG_Impl::GLImpl {
         } else {
             auto* ttype = programObject.GetUniformTType(location);
             if (ttype->isTexture() || ttype->isImage()) {
+                MGLOG_D("%s: program = %d, opaque uniform location = %d, name = '%s', unit = %d", __func__,
+                        programObject.GetExternalIndex(), location, programObject.GetUniformName(location).c_str(),
+                        static_cast<Int>(*value));
                 programObject.SetUniformSamplerOrImageUnitIndex(location, *value);
             }
         }
@@ -574,6 +601,36 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
     }
 
+    template <GLsizei ItemCount, typename T>
+    void ProgramUniformv_State(GLuint program, GLint location, GLsizei count, T* value) {
+        if (location == -1) return;
+
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject) return;
+
+        if (!programObject->GetLinkStatus()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "program " + std::to_string(program) + " is not linked."));
+            return;
+        }
+
+        if (location > programObject->GetMaxUniformLocation() || location < -1) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "location " + std::to_string(location) +
+                                                 " is an invalid uniform location for program " +
+                                                 std::to_string(program) + "."));
+            return;
+        }
+
+        for (GLint offset = 0; offset < count; offset++) {
+            Uniform_State<ItemCount>(*programObject, location + offset, value + offset * ItemCount);
+        }
+    }
+
     // Helper function to transpose a 2x2 matrix
     void TransposeMatrix2x2(const GLfloat* input, GLfloat* output) {
         // Input matrix is in column-major order (OpenGL default)
@@ -674,6 +731,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         Uniformv_State<4>(location, count, value);
     }
 
+    void Uniform1uiv_State(GLint location, GLsizei count, const GLuint* value) {
+        Uniformv_State<1>(location, count, value);
+    }
+
     void UniformMatrix2fv_State(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
         // For 2x2 matrices, we have 4 elements per matrix
         // If transpose is GL_TRUE, we need to transpose the matrix data
@@ -793,6 +854,118 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
     }
 
+    void ProgramUniformMatrix2fv_State(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                       const GLfloat* value) {
+        if (location == -1) return;
+
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject) return;
+
+        if (!programObject->GetLinkStatus()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "program " + std::to_string(program) + " is not linked."));
+            return;
+        }
+
+        if (location > programObject->GetMaxUniformLocation() || location < -1) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "location " + std::to_string(location) +
+                                                 " is an invalid uniform location for program " +
+                                                 std::to_string(program) + "."));
+            return;
+        }
+
+        for (GLint i = 0; i < count; i++) {
+            if (transpose == GL_TRUE) {
+                GLfloat transposedMatrix[4];
+                TransposeMatrix2x2(value + i * 4, transposedMatrix);
+                Uniform_State<4>(*programObject, location + i, transposedMatrix);
+            } else {
+                Uniform_State<4>(*programObject, location + i, value + i * 4);
+            }
+        }
+    }
+
+    void ProgramUniformMatrix3fv_State(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                       const GLfloat* value) {
+        if (location == -1) return;
+
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject) return;
+
+        if (!programObject->GetLinkStatus()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "program " + std::to_string(program) + " is not linked."));
+            return;
+        }
+
+        if (location > programObject->GetMaxUniformLocation() || location < -1) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "location " + std::to_string(location) +
+                                                 " is an invalid uniform location for program " +
+                                                 std::to_string(program) + "."));
+            return;
+        }
+
+        for (GLint i = 0; i < count; i++) {
+            if (transpose == GL_TRUE) {
+                GLfloat transposedMatrix[9];
+                TransposeMatrix3x3(value + i * 9, transposedMatrix);
+                for (int row = 0; row < 3; ++row) {
+                    Uniform_State<3>(*programObject, location + i, transposedMatrix + row * 3, row * 4 * sizeof(float));
+                }
+            } else {
+                for (int row = 0; row < 3; ++row) {
+                    Uniform_State<3>(*programObject, location + i, value + i * 9 + row * 3, row * 4 * sizeof(float));
+                }
+            }
+        }
+    }
+
+    void ProgramUniformMatrix4fv_State(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                       const GLfloat* value) {
+        if (location == -1) return;
+
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject) return;
+
+        if (!programObject->GetLinkStatus()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "program " + std::to_string(program) + " is not linked."));
+            return;
+        }
+
+        if (location > programObject->GetMaxUniformLocation() || location < -1) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "location " + std::to_string(location) +
+                                                 " is an invalid uniform location for program " +
+                                                 std::to_string(program) + "."));
+            return;
+        }
+
+        for (GLint i = 0; i < count; i++) {
+            if (transpose == GL_TRUE) {
+                GLfloat transposedMatrix[16];
+                TransposeMatrix4x4(value + i * 16, transposedMatrix);
+                Uniform_State<16>(*programObject, location + i, transposedMatrix);
+            } else {
+                Uniform_State<16>(*programObject, location + i, value + i * 16);
+            }
+        }
+    }
+
     GLuint GetUniformBlockIndex_State(GLuint program, const GLchar* uniformBlockName) {
         const auto& programObject = TryToGetProgramObject(program);
         if (!programObject) return GL_INVALID_INDEX;
@@ -1094,6 +1267,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         Uniform4iv(location, 1, v);
     }
 
+    void Uniform1ui(GLint location, GLuint v0) {
+        Uniform1uiv(location, 1, &v0);
+    }
+
     void Uniform1fv(GLint location, GLsizei count, const GLfloat* value) {
         Uniform1fv_State(location, count, value);
     }
@@ -1126,6 +1303,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         Uniform4iv_State(location, count, value);
     }
 
+    void Uniform1uiv(GLint location, GLsizei count, const GLuint* value) {
+        Uniform1uiv_State(location, count, value);
+    }
+
     void UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
         UniformMatrix2fv_State(location, count, transpose, value);
     }
@@ -1138,6 +1319,126 @@ namespace MobileGL::MG_Impl::GLImpl {
         UniformMatrix4fv_State(location, count, transpose, value);
     }
 
+    void ProgramUniform1f(GLuint program, GLint location, GLfloat v0) {
+        ProgramUniform1fv(program, location, 1, &v0);
+    }
+
+    void ProgramUniform2f(GLuint program, GLint location, GLfloat v0, GLfloat v1) {
+        GLfloat v[] = {v0, v1};
+        ProgramUniform2fv(program, location, 1, v);
+    }
+
+    void ProgramUniform3f(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
+        GLfloat v[] = {v0, v1, v2};
+        ProgramUniform3fv(program, location, 1, v);
+    }
+
+    void ProgramUniform4f(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) {
+        GLfloat v[] = {v0, v1, v2, v3};
+        ProgramUniform4fv(program, location, 1, v);
+    }
+
+    void ProgramUniform1i(GLuint program, GLint location, GLint v0) {
+        ProgramUniform1iv(program, location, 1, &v0);
+    }
+
+    void ProgramUniform2i(GLuint program, GLint location, GLint v0, GLint v1) {
+        GLint v[] = {v0, v1};
+        ProgramUniform2iv(program, location, 1, v);
+    }
+
+    void ProgramUniform3i(GLuint program, GLint location, GLint v0, GLint v1, GLint v2) {
+        GLint v[] = {v0, v1, v2};
+        ProgramUniform3iv(program, location, 1, v);
+    }
+
+    void ProgramUniform4i(GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3) {
+        GLint v[] = {v0, v1, v2, v3};
+        ProgramUniform4iv(program, location, 1, v);
+    }
+
+    void ProgramUniform1ui(GLuint program, GLint location, GLuint v0) {
+        ProgramUniform1uiv(program, location, 1, &v0);
+    }
+
+    void ProgramUniform2ui(GLuint program, GLint location, GLuint v0, GLuint v1) {
+        GLuint v[] = {v0, v1};
+        ProgramUniform2uiv(program, location, 1, v);
+    }
+
+    void ProgramUniform3ui(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2) {
+        GLuint v[] = {v0, v1, v2};
+        ProgramUniform3uiv(program, location, 1, v);
+    }
+
+    void ProgramUniform4ui(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) {
+        GLuint v[] = {v0, v1, v2, v3};
+        ProgramUniform4uiv(program, location, 1, v);
+    }
+
+    void ProgramUniform1fv(GLuint program, GLint location, GLsizei count, const GLfloat* value) {
+        ProgramUniformv_State<1>(program, location, count, value);
+    }
+
+    void ProgramUniform2fv(GLuint program, GLint location, GLsizei count, const GLfloat* value) {
+        ProgramUniformv_State<2>(program, location, count, value);
+    }
+
+    void ProgramUniform3fv(GLuint program, GLint location, GLsizei count, const GLfloat* value) {
+        ProgramUniformv_State<3>(program, location, count, value);
+    }
+
+    void ProgramUniform4fv(GLuint program, GLint location, GLsizei count, const GLfloat* value) {
+        ProgramUniformv_State<4>(program, location, count, value);
+    }
+
+    void ProgramUniform1iv(GLuint program, GLint location, GLsizei count, const GLint* value) {
+        ProgramUniformv_State<1>(program, location, count, value);
+    }
+
+    void ProgramUniform2iv(GLuint program, GLint location, GLsizei count, const GLint* value) {
+        ProgramUniformv_State<2>(program, location, count, value);
+    }
+
+    void ProgramUniform3iv(GLuint program, GLint location, GLsizei count, const GLint* value) {
+        ProgramUniformv_State<3>(program, location, count, value);
+    }
+
+    void ProgramUniform4iv(GLuint program, GLint location, GLsizei count, const GLint* value) {
+        ProgramUniformv_State<4>(program, location, count, value);
+    }
+
+    void ProgramUniform1uiv(GLuint program, GLint location, GLsizei count, const GLuint* value) {
+        ProgramUniformv_State<1>(program, location, count, value);
+    }
+
+    void ProgramUniform2uiv(GLuint program, GLint location, GLsizei count, const GLuint* value) {
+        ProgramUniformv_State<2>(program, location, count, value);
+    }
+
+    void ProgramUniform3uiv(GLuint program, GLint location, GLsizei count, const GLuint* value) {
+        ProgramUniformv_State<3>(program, location, count, value);
+    }
+
+    void ProgramUniform4uiv(GLuint program, GLint location, GLsizei count, const GLuint* value) {
+        ProgramUniformv_State<4>(program, location, count, value);
+    }
+
+    void ProgramUniformMatrix2fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value) {
+        ProgramUniformMatrix2fv_State(program, location, count, transpose, value);
+    }
+
+    void ProgramUniformMatrix3fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value) {
+        ProgramUniformMatrix3fv_State(program, location, count, transpose, value);
+    }
+
+    void ProgramUniformMatrix4fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value) {
+        ProgramUniformMatrix4fv_State(program, location, count, transpose, value);
+    }
+
     GLuint GetUniformBlockIndex(GLuint program, const GLchar* uniformBlockName) {
         return GetUniformBlockIndex_State(program, uniformBlockName);
     }
@@ -1163,6 +1464,112 @@ namespace MobileGL::MG_Impl::GLImpl {
         return GetFragDataLocation_State(program, name);
     }
 
+    void GetProgramInterfaceiv(GLuint program, GLenum programInterface, GLenum pname, GLint* params) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return;
+        auto getProgramInterfaceiv = MG_Backend::gBackendFunctionsTable.GL.GetProgramInterfaceiv;
+        if (!getProgramInterfaceiv) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support program interface queries."));
+            return;
+        }
+        getProgramInterfaceiv(program, programInterface, pname, params);
+    }
+
+    GLuint GetProgramResourceIndex(GLuint program, GLenum programInterface, const GLchar* name) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return GL_INVALID_INDEX;
+        auto getProgramResourceIndex = MG_Backend::gBackendFunctionsTable.GL.GetProgramResourceIndex;
+        if (!getProgramResourceIndex) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support program interface queries."));
+            return GL_INVALID_INDEX;
+        }
+        return getProgramResourceIndex(program, programInterface, name);
+    }
+
+    void GetProgramResourceName(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei* length,
+                                GLchar* name) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return;
+        if (bufSize < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "bufSize must be non-negative."));
+            return;
+        }
+        auto getProgramResourceName = MG_Backend::gBackendFunctionsTable.GL.GetProgramResourceName;
+        if (!getProgramResourceName) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support program interface queries."));
+            return;
+        }
+        getProgramResourceName(program, programInterface, index, bufSize, length, name);
+    }
+
+    void GetProgramResourceiv(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                              const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return;
+        if (propCount < 0 || bufSize < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                                                      "propCount and bufSize must be non-negative."));
+            return;
+        }
+        auto getProgramResourceiv = MG_Backend::gBackendFunctionsTable.GL.GetProgramResourceiv;
+        if (!getProgramResourceiv) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support program interface queries."));
+            return;
+        }
+        getProgramResourceiv(program, programInterface, index, propCount, props, bufSize, length, params);
+    }
+
+    GLint GetProgramResourceLocation(GLuint program, GLenum programInterface, const GLchar* name) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return -1;
+        auto getProgramResourceLocation = MG_Backend::gBackendFunctionsTable.GL.GetProgramResourceLocation;
+        if (!getProgramResourceLocation) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support program interface queries."));
+            return -1;
+        }
+        return getProgramResourceLocation(program, programInterface, name);
+    }
+
+    GLint GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar* name) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return -1;
+        auto getProgramResourceLocationIndex = MG_Backend::gBackendFunctionsTable.GL.GetProgramResourceLocationIndex;
+        if (!getProgramResourceLocationIndex) return -1;
+        return getProgramResourceLocationIndex(program, programInterface, name);
+    }
+
+    void ShaderStorageBlockBinding(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding) {
+        auto& programObject = TryToGetProgramObject(program);
+        if (!programObject || !programObject->GetLinkStatus()) return;
+        auto shaderStorageBlockBinding = MG_Backend::gBackendFunctionsTable.GL.ShaderStorageBlockBinding;
+        if (!shaderStorageBlockBinding) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support shader storage block binding."));
+            return;
+        }
+        shaderStorageBlockBinding(program, storageBlockIndex, storageBlockBinding);
+    }
+
     void ValidateProgram(GLuint program) {
         ValidateProgram_State(program);
     }

MobileGL/MG_Impl/GLImpl/Program/GL_Program.h

@@ -45,6 +45,7 @@ namespace MobileGL::MG_Impl::GLImpl {
     void Uniform2i(GLint location, GLint v0, GLint v1);
     void Uniform3i(GLint location, GLint v0, GLint v1, GLint v2);
     void Uniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+    void Uniform1ui(GLint location, GLuint v0);
     void Uniform1fv(GLint location, GLsizei count, const GLfloat* value);
     void Uniform2fv(GLint location, GLsizei count, const GLfloat* value);
     void Uniform3fv(GLint location, GLsizei count, const GLfloat* value);
@@ -53,9 +54,40 @@ namespace MobileGL::MG_Impl::GLImpl {
     void Uniform2iv(GLint location, GLsizei count, const GLint* value);
     void Uniform3iv(GLint location, GLsizei count, const GLint* value);
     void Uniform4iv(GLint location, GLsizei count, const GLint* value);
+    void Uniform1uiv(GLint location, GLsizei count, const GLuint* value);
     void UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
     void UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
     void UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
+    void ProgramUniform1f(GLuint program, GLint location, GLfloat v0);
+    void ProgramUniform2f(GLuint program, GLint location, GLfloat v0, GLfloat v1);
+    void ProgramUniform3f(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+    void ProgramUniform4f(GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+    void ProgramUniform1i(GLuint program, GLint location, GLint v0);
+    void ProgramUniform2i(GLuint program, GLint location, GLint v0, GLint v1);
+    void ProgramUniform3i(GLuint program, GLint location, GLint v0, GLint v1, GLint v2);
+    void ProgramUniform4i(GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+    void ProgramUniform1ui(GLuint program, GLint location, GLuint v0);
+    void ProgramUniform2ui(GLuint program, GLint location, GLuint v0, GLuint v1);
+    void ProgramUniform3ui(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2);
+    void ProgramUniform4ui(GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
+    void ProgramUniform1fv(GLuint program, GLint location, GLsizei count, const GLfloat* value);
+    void ProgramUniform2fv(GLuint program, GLint location, GLsizei count, const GLfloat* value);
+    void ProgramUniform3fv(GLuint program, GLint location, GLsizei count, const GLfloat* value);
+    void ProgramUniform4fv(GLuint program, GLint location, GLsizei count, const GLfloat* value);
+    void ProgramUniform1iv(GLuint program, GLint location, GLsizei count, const GLint* value);
+    void ProgramUniform2iv(GLuint program, GLint location, GLsizei count, const GLint* value);
+    void ProgramUniform3iv(GLuint program, GLint location, GLsizei count, const GLint* value);
+    void ProgramUniform4iv(GLuint program, GLint location, GLsizei count, const GLint* value);
+    void ProgramUniform1uiv(GLuint program, GLint location, GLsizei count, const GLuint* value);
+    void ProgramUniform2uiv(GLuint program, GLint location, GLsizei count, const GLuint* value);
+    void ProgramUniform3uiv(GLuint program, GLint location, GLsizei count, const GLuint* value);
+    void ProgramUniform4uiv(GLuint program, GLint location, GLsizei count, const GLuint* value);
+    void ProgramUniformMatrix2fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value);
+    void ProgramUniformMatrix3fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value);
+    void ProgramUniformMatrix4fv(GLuint program, GLint location, GLsizei count, GLboolean transpose,
+                                 const GLfloat* value);
     GLuint GetUniformBlockIndex(GLuint program, const GLchar* uniformBlockName);
     void UniformBlockBinding(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
     void GetActiveUniformBlockiv(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint* params);
@@ -63,5 +95,14 @@ namespace MobileGL::MG_Impl::GLImpl {
                                    GLchar* uniformBlockName);
     void BindFragDataLocation(GLuint program, GLuint colorNumber, const char* name);
     GLint GetFragDataLocation(GLuint program, const char* name);
+    void GetProgramInterfaceiv(GLuint program, GLenum programInterface, GLenum pname, GLint* params);
+    GLuint GetProgramResourceIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void GetProgramResourceName(GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize,
+                                GLsizei* length, GLchar* name);
+    void GetProgramResourceiv(GLuint program, GLenum programInterface, GLuint index, GLsizei propCount,
+                              const GLenum* props, GLsizei bufSize, GLsizei* length, GLint* params);
+    GLint GetProgramResourceLocation(GLuint program, GLenum programInterface, const GLchar* name);
+    GLint GetProgramResourceLocationIndex(GLuint program, GLenum programInterface, const GLchar* name);
+    void ShaderStorageBlockBinding(GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
     void ValidateProgram(GLuint program);
 } // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.cpp

@@ -14,6 +14,19 @@
 #include <MG_Util/Converters/MGToStr/RenderStateEnumConverter.h>
 
 namespace MobileGL::MG_Impl::GLImpl {
+    static Bool TryConvertBlendEquation(GLenum mode, const char* functionName,
+                                        ::MobileGL::BlendEquation& outEquation) {
+        outEquation = MG_Util::ConvertGLEnumToBlendEquation(mode);
+        if (outEquation != ::MobileGL::BlendEquation::Unknown) return true;
+
+        MG_State::pGLContext->RecordError(
+            ErrorCode::InvalidEnum,
+            MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", functionName,
+                                         "Blend equation enum " + MG_Util::ConvertGLEnumToString(mode) +
+                                             " is not supported."));
+        return false;
+    }
+
     void Viewport_State(GLint x, GLint y, GLsizei width, GLsizei height) {
         if (width < 0 || height < 0) {
             MG_State::pGLContext->RecordError(ErrorCode::InvalidValue,
@@ -141,7 +154,33 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void FrontFace_State(GLenum mode) {
-        // TODO: implement
+        FrontFaceMode frontFaceMode = MG_Util::ConvertGLEnumToFrontFaceMode(mode);
+        if (frontFaceMode == FrontFaceMode::Unknown) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "FrontFace_State",
+                                             "Front face mode enum " +
+                                                 MG_Util::ConvertFrontFaceModeToString(frontFaceMode) + "(" +
+                                                 MG_Util::ConvertGLEnumToString(mode) + ") is not supported."));
+            return;
+        }
+
+        MG_State::pGLContext->SetFrontFaceMode(frontFaceMode);
+    }
+
+    void ProvokingVertex_State(GLenum mode) {
+        ProvokingVertexMode provokingVertexMode = MG_Util::ConvertGLEnumToProvokingVertexMode(mode);
+        if (provokingVertexMode == ProvokingVertexMode::Unknown) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "ProvokingVertex_State",
+                                             "Provoking vertex mode enum " +
+                                                 MG_Util::ConvertProvokingVertexModeToString(provokingVertexMode) +
+                                                 "(" + MG_Util::ConvertGLEnumToString(mode) + ") is not supported."));
+            return;
+        }
+
+        MG_State::pGLContext->SetProvokingVertexMode(provokingVertexMode);
     }
 
     void Enable_State(GLenum cap) {
@@ -249,7 +288,19 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void BlendEquation_State(GLenum mode) {
-        // TODO: implement
+        ::MobileGL::BlendEquation blendEquation = ::MobileGL::BlendEquation::Unknown;
+        if (!TryConvertBlendEquation(mode, "BlendEquation_State", blendEquation)) return;
+        MG_State::pGLContext->SetBlendEquation(blendEquation, blendEquation);
+    }
+
+    void BlendEquationSeparate_State(GLenum modeRGB, GLenum modeAlpha) {
+        ::MobileGL::BlendEquation colorEquation = ::MobileGL::BlendEquation::Unknown;
+        if (!TryConvertBlendEquation(modeRGB, "BlendEquationSeparate_State", colorEquation)) return;
+
+        ::MobileGL::BlendEquation alphaEquation = ::MobileGL::BlendEquation::Unknown;
+        if (!TryConvertBlendEquation(modeAlpha, "BlendEquationSeparate_State", alphaEquation)) return;
+
+        MG_State::pGLContext->SetBlendEquation(colorEquation, alphaEquation);
     }
 
     void BlendColor_State(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
@@ -283,9 +334,45 @@ namespace MobileGL::MG_Impl::GLImpl {
         BlendFactor dstRGBM = MG_Util::ConvertGLEnumToBlendFactor(dstRGB);
         BlendFactor srcAlphaM = MG_Util::ConvertGLEnumToBlendFactor(srcAlpha);
         BlendFactor dstAlphaM = MG_Util::ConvertGLEnumToBlendFactor(dstAlpha);
+        if (srcRGBM == BlendFactor::Unknown || dstRGBM == BlendFactor::Unknown ||
+            srcAlphaM == BlendFactor::Unknown || dstAlphaM == BlendFactor::Unknown) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "BlendFuncSeparatei_State",
+                                             "One of the indexed blend factor enums is not supported."));
+            return;
+        }
         MG_State::pGLContext->SetBlendFuncIndexed(buf, srcRGBM, dstRGBM, srcAlphaM, dstAlphaM);
     }
 
+    void BlendFunci_State(GLuint buf, GLenum src, GLenum dst) {
+        BlendFuncSeparatei_State(buf, src, dst, src, dst);
+    }
+
+    void BlendEquationSeparatei_State(GLuint buf, GLenum modeRGB, GLenum modeAlpha) {
+        if (buf >= MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", "BlendEquationSeparatei_State",
+                    "Buffer index " + std::to_string(buf) + " is out of range. Max supported is " +
+                        std::to_string(MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS - 1) + "."));
+            return;
+        }
+
+        ::MobileGL::BlendEquation colorEquation = ::MobileGL::BlendEquation::Unknown;
+        if (!TryConvertBlendEquation(modeRGB, "BlendEquationSeparatei_State", colorEquation)) return;
+
+        ::MobileGL::BlendEquation alphaEquation = ::MobileGL::BlendEquation::Unknown;
+        if (!TryConvertBlendEquation(modeAlpha, "BlendEquationSeparatei_State", alphaEquation)) return;
+
+        MG_State::pGLContext->SetBlendEquationIndexed(buf, colorEquation, alphaEquation);
+    }
+
+    void BlendEquationi_State(GLuint buf, GLenum mode) {
+        BlendEquationSeparatei_State(buf, mode, mode);
+    }
+
     void Disablei_State(GLenum target, GLuint index) {
         auto capInput = MG_Util::ConvertGLEnumToCapabilityInput(target);
         if (capInput == CapabilityInput::Unknown) {
@@ -315,6 +402,18 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     /* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
+    void BlendEquationi(GLuint buf, GLenum mode) {
+        BlendEquationi_State(buf, mode);
+    }
+
+    void BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeAlpha) {
+        BlendEquationSeparatei_State(buf, modeRGB, modeAlpha);
+    }
+
+    void BlendFunci(GLuint buf, GLenum src, GLenum dst) {
+        BlendFunci_State(buf, src, dst);
+    }
+
     void BlendFuncSeparatei(GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) {
         BlendFuncSeparatei_State(buf, srcRGB, dstRGB, srcAlpha, dstAlpha);
     }
@@ -415,6 +514,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         FrontFace_State(mode);
     }
 
+    void ProvokingVertex(GLenum mode) {
+        ProvokingVertex_State(mode);
+    }
+
     void Enable(GLenum cap) {
         Enable_State(cap);
     }
@@ -455,6 +558,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         BlendEquation_State(mode);
     }
 
+    void BlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha) {
+        BlendEquationSeparate_State(modeRGB, modeAlpha);
+    }
+
     void BlendColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
         BlendColor_State(red, green, blue, alpha);
     }

MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.h

@@ -11,6 +11,9 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
+    void BlendEquationi(GLuint buf, GLenum mode);
+    void BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeAlpha);
+    void BlendFunci(GLuint buf, GLenum src, GLenum dst);
     void BlendFuncSeparatei(GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
     void Disablei(GLenum target, GLuint index);
     void Enablei(GLenum target, GLuint index);
@@ -36,6 +39,7 @@ namespace MobileGL::MG_Impl::GLImpl {
     GLboolean IsEnabled(GLenum cap);
     void Hint(GLenum target, GLenum mode);
     void FrontFace(GLenum mode);
+    void ProvokingVertex(GLenum mode);
     void Enable(GLenum cap);
     void Disable(GLenum cap);
     void DepthRange(GLclampd near_val, GLclampd far_val);
@@ -46,6 +50,7 @@ namespace MobileGL::MG_Impl::GLImpl {
     void ClampColor(GLenum target, GLenum clamp);
     void BlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
     void BlendEquation(GLenum mode);
+    void BlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);
     void BlendColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
     void ClearStencil(GLint s);
     void ClearDepth(GLclampd depth);

MobileGL/MG_Impl/GLImpl/Sampler/GL_Sampler.cpp

@@ -167,6 +167,7 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void BindSampler_State(GLuint unit, GLuint sampler) {
+        MGLOG_D("BindSampler_State: unit = %u, sampler = %u", unit, sampler);
         if (unit >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) {
             MG_State::pGLContext->RecordError(
                 ErrorCode::InvalidValue,

MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp

@@ -8,36 +8,121 @@
 
 #include "GL_Sync.h"
 
-#include "MG_State/GLState/Core.h"
+#include <MG_State/GLState/Core.h>
+#include <MG_State/GLState/ErrorState/Error.h>
 
 namespace MobileGL::MG_Impl::GLImpl {
-    GLsync FenceSync_Backend(GLenum condition, GLbitfield flags) {
+    namespace {
-        return 0;
+        struct SyncObject {
-    }
+            GLenum Condition = GL_SYNC_GPU_COMMANDS_COMPLETE;
+            GLbitfield Flags = 0;
+        };
 
-    GLenum ClientWaitSync_Backend(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+        UnorderedMap<GLsync, UniquePtr<SyncObject>> g_syncObjects;
-        return 0;
-    }
 
-    void DeleteSync_Backend(GLsync sync) {}
+        void RecordSyncError(const char* funcName, ErrorCode code, String message) {
+            MG_State::pGLContext->RecordError(code,
+                                              MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", funcName, Move(message)));
+        }
 
-    GLsync FenceSync_State(GLenum condition, GLbitfield flags) {
+        SyncObject* GetSyncObject(GLsync sync, const char* funcName) {
-        return 0;
+            auto it = g_syncObjects.find(sync);
-    }
+            if (sync == nullptr || it == g_syncObjects.end()) {
-
+                RecordSyncError(funcName, ErrorCode::InvalidValue, "Sync object is not valid.");
-    GLenum ClientWaitSync_State(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+                return nullptr;
-        return 0;
+            }
-    }
+            return it->second.get();
-
+        }
-    void DeleteSync_State(GLsync sync) {}
+    } // namespace
 
     GLsync FenceSync(GLenum condition, GLbitfield flags) {
-        return 0;
+        if (condition != GL_SYNC_GPU_COMMANDS_COMPLETE) {
+            RecordSyncError("FenceSync", ErrorCode::InvalidEnum, "Condition must be GL_SYNC_GPU_COMMANDS_COMPLETE.");
+            return nullptr;
+        }
+        if (flags != 0) {
+            RecordSyncError("FenceSync", ErrorCode::InvalidValue, "Flags must be zero.");
+            return nullptr;
+        }
+
+        auto syncObject = MakeUnique<SyncObject>();
+        syncObject->Condition = condition;
+        syncObject->Flags = flags;
+        GLsync handle = reinterpret_cast<GLsync>(syncObject.get());
+        g_syncObjects[handle] = Move(syncObject);
+        return handle;
+    }
+
+    GLboolean IsSync(GLsync sync) {
+        return g_syncObjects.find(sync) != g_syncObjects.end() ? GL_TRUE : GL_FALSE;
     }
 
     GLenum ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {
-        return 0;
+        (void)timeout;
+        if ((flags & ~GL_SYNC_FLUSH_COMMANDS_BIT) != 0) {
+            RecordSyncError("ClientWaitSync", ErrorCode::InvalidValue,
+                            "Flags can only contain GL_SYNC_FLUSH_COMMANDS_BIT.");
+            return GL_WAIT_FAILED;
+        }
+        if (!GetSyncObject(sync, "ClientWaitSync")) return GL_WAIT_FAILED;
+        return GL_ALREADY_SIGNALED;
     }
 
-    void DeleteSync(GLsync sync) {}
+    void WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+        if (flags != 0) {
+            RecordSyncError("WaitSync", ErrorCode::InvalidValue, "Flags must be zero.");
+            return;
+        }
+        if (timeout != GL_TIMEOUT_IGNORED) {
+            RecordSyncError("WaitSync", ErrorCode::InvalidValue, "Timeout must be GL_TIMEOUT_IGNORED.");
+            return;
+        }
+        (void)GetSyncObject(sync, "WaitSync");
+    }
+
+    void DeleteSync(GLsync sync) {
+        if (sync == nullptr) return;
+        auto it = g_syncObjects.find(sync);
+        if (it == g_syncObjects.end()) {
+            RecordSyncError("DeleteSync", ErrorCode::InvalidValue, "Sync object is not valid.");
+            return;
+        }
+        g_syncObjects.erase(it);
+    }
+
+    void GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei* length, GLint* values) {
+        if (bufSize < 0) {
+            RecordSyncError("GetSynciv", ErrorCode::InvalidValue, "bufSize must be non-negative.");
+            return;
+        }
+
+        auto* syncObject = GetSyncObject(sync, "GetSynciv");
+        if (!syncObject) return;
+
+        GLint value = 0;
+        switch (pname) {
+        case GL_OBJECT_TYPE:
+            value = GL_SYNC_FENCE;
+            break;
+        case GL_SYNC_STATUS:
+            value = GL_SIGNALED;
+            break;
+        case GL_SYNC_CONDITION:
+            value = static_cast<GLint>(syncObject->Condition);
+            break;
+        case GL_SYNC_FLAGS:
+            value = static_cast<GLint>(syncObject->Flags);
+            break;
+        default:
+            RecordSyncError("GetSynciv", ErrorCode::InvalidEnum, std::format("Invalid pname enum: 0x{:X}", pname));
+            return;
+        }
+
+        if (length) {
+            *length = bufSize > 0 && values ? 1 : 0;
+        }
+        if (bufSize > 0 && values) {
+            values[0] = value;
+        }
+    }
 } // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.h

@@ -11,6 +11,9 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     GLsync FenceSync(GLenum condition, GLbitfield flags);
+    GLboolean IsSync(GLsync sync);
     GLenum ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);
+    void WaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout);
     void DeleteSync(GLsync sync);
+    void GetSynciv(GLsync sync, GLenum pname, GLsizei bufSize, GLsizei* length, GLint* values);
 } // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.cpp

@@ -29,12 +29,221 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     static SharedPtr<MG_State::GLState::ITextureObject> nullTextureObject;
+    static UnorderedMap<Uint, Bool> g_autoGenerateMipmapByTextureId;
+
+    const SharedPtr<MG_State::GLState::ITextureObject>& GetTextureObjectByName(GLuint texture, const char* caller) {
+        if (texture == 0 || !TextureImpl::ValidateTextureName(texture, true)) return nullTextureObject;
+
+        auto& textureObject = MG_State::pGLContext->GetTextureObject(texture);
+        if (!TextureImpl::ValidateTextureObject(textureObject)) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                             std::format("Texture object {} does not exist.", texture)));
+            return nullTextureObject;
+        }
+        return textureObject;
+    }
+
+    TextureUploadTarget GetPrimaryUploadTarget(const SharedPtr<MG_State::GLState::ITextureObject>& textureObject) {
+        if (!textureObject) return TextureUploadTarget::Unknown;
+        const auto& uploadTargets = textureObject->GetUploadTargets();
+        return uploadTargets.empty() ? TextureUploadTarget::Unknown : uploadTargets[0];
+    }
+
+    void TextureParameterObject_State(const SharedPtr<MG_State::GLState::ITextureObject>& textureObject, GLenum pname,
+                                      GLint param, const char* caller) {
+        if (!textureObject) return;
+
+        switch (pname) {
+        case GL_TEXTURE_MAG_FILTER:
+            textureObject->GetSamplerObject()->SetMagFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+            break;
+        case GL_TEXTURE_MIN_FILTER:
+            textureObject->GetSamplerObject()->SetMinFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+            textureObject->GetSamplerObject()->SetMipmapMode(MG_Util::ConvertGLEnumToSamplerMipmapMode(param));
+            break;
+        case GL_TEXTURE_MIN_LOD: {
+            Float maxLod = textureObject->GetSamplerObject()->GetMaxLod();
+            textureObject->GetSamplerObject()->SetLodRange(param, maxLod);
+            break;
+        }
+        case GL_TEXTURE_MAX_LOD: {
+            Float minLod = textureObject->GetSamplerObject()->GetMinLod();
+            textureObject->GetSamplerObject()->SetLodRange(minLod, param);
+            break;
+        }
+        case GL_TEXTURE_BASE_LEVEL:
+            textureObject->SetBaseLevel(param);
+            break;
+        case GL_TEXTURE_MAX_LEVEL:
+            textureObject->SetMaxLevel(param);
+            break;
+        case GL_TEXTURE_SWIZZLE_R:
+        case GL_TEXTURE_SWIZZLE_G:
+        case GL_TEXTURE_SWIZZLE_B:
+        case GL_TEXTURE_SWIZZLE_A: {
+            auto swizzleParam = MG_Util::ConvertGLEnumPnameToTextureSwizzleParam(pname);
+            auto swizzleValue = MG_Util::ConvertGLEnumToTextureSwizzleParam(param);
+            textureObject->SetSwizzleParam(swizzleParam, swizzleValue);
+            break;
+        }
+        case GL_TEXTURE_WRAP_S:
+            textureObject->GetSamplerObject()->SetWrapS(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+            break;
+        case GL_TEXTURE_WRAP_T:
+            textureObject->GetSamplerObject()->SetWrapT(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+            break;
+        case GL_TEXTURE_WRAP_R:
+            textureObject->GetSamplerObject()->SetWrapR(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+            break;
+        case GL_TEXTURE_COMPARE_MODE:
+            textureObject->GetSamplerObject()->SetCompareMode(MG_Util::ConvertGLEnumToSamplerCompareMode(param));
+            break;
+        case GL_TEXTURE_COMPARE_FUNC:
+            textureObject->GetSamplerObject()->SetSamplerCompareFunc(MG_Util::ConvertGLEnumToSamplerCompareFunc(param));
+            break;
+        case GL_TEXTURE_LOD_BIAS:
+            textureObject->GetSamplerObject()->SetLodBias((GLfloat)param);
+            break;
+        case GL_GENERATE_MIPMAP:
+            g_autoGenerateMipmapByTextureId[textureObject->GetExternalIndex()] = (param != GL_FALSE);
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", caller,
+                    std::format("pname {} is not a valid texture parameter.", MG_Util::ConvertGLEnumToString(pname))));
+            return;
+        }
+    }
+
+    void TextureParameterObjectf_State(const SharedPtr<MG_State::GLState::ITextureObject>& textureObject, GLenum pname,
+                                       GLfloat param, const char* caller) {
+        if (!textureObject) return;
+
+        switch (pname) {
+        case GL_TEXTURE_MAG_FILTER:
+            textureObject->GetSamplerObject()->SetMagFilter(MG_Util::ConvertGLEnumToSamplerFilterMode((GLenum)param));
+            break;
+        case GL_TEXTURE_MIN_FILTER:
+            textureObject->GetSamplerObject()->SetMinFilter(MG_Util::ConvertGLEnumToSamplerFilterMode((GLenum)param));
+            textureObject->GetSamplerObject()->SetMipmapMode(MG_Util::ConvertGLEnumToSamplerMipmapMode((GLenum)param));
+            break;
+        case GL_TEXTURE_MIN_LOD: {
+            Float maxLod = textureObject->GetSamplerObject()->GetMaxLod();
+            textureObject->GetSamplerObject()->SetLodRange(param, maxLod);
+            break;
+        }
+        case GL_TEXTURE_MAX_LOD: {
+            Float minLod = textureObject->GetSamplerObject()->GetMinLod();
+            textureObject->GetSamplerObject()->SetLodRange(minLod, param);
+            break;
+        }
+        case GL_TEXTURE_BASE_LEVEL:
+            textureObject->SetBaseLevel((Uint)param);
+            break;
+        case GL_TEXTURE_MAX_LEVEL:
+            textureObject->SetMaxLevel((Uint)param);
+            break;
+        case GL_TEXTURE_WRAP_S:
+            textureObject->GetSamplerObject()->SetWrapS(MG_Util::ConvertGLEnumToSamplerWrapMode((GLenum)param));
+            break;
+        case GL_TEXTURE_WRAP_T:
+            textureObject->GetSamplerObject()->SetWrapT(MG_Util::ConvertGLEnumToSamplerWrapMode((GLenum)param));
+            break;
+        case GL_TEXTURE_WRAP_R:
+            textureObject->GetSamplerObject()->SetWrapR(MG_Util::ConvertGLEnumToSamplerWrapMode((GLenum)param));
+            break;
+        case GL_TEXTURE_COMPARE_MODE:
+            textureObject->GetSamplerObject()->SetCompareMode(
+                MG_Util::ConvertGLEnumToSamplerCompareMode((GLenum)param));
+            break;
+        case GL_TEXTURE_COMPARE_FUNC:
+            textureObject->GetSamplerObject()->SetSamplerCompareFunc(
+                MG_Util::ConvertGLEnumToSamplerCompareFunc((GLenum)param));
+            break;
+        case GL_TEXTURE_LOD_BIAS:
+            textureObject->GetSamplerObject()->SetLodBias(param);
+            break;
+        case GL_GENERATE_MIPMAP:
+            g_autoGenerateMipmapByTextureId[textureObject->GetExternalIndex()] = (param != 0.0f);
+            break;
+        case GL_DEPTH_STENCIL_TEXTURE_MODE:
+            if (param != GL_DEPTH_COMPONENT && param != GL_STENCIL_INDEX) {
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum,
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                                 "Invalid GL_DEPTH_STENCIL_TEXTURE_MODE value."));
+            }
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>(
+                    "MG_Impl/GLImpl", caller,
+                    std::format("pname {} is not a valid texture parameter.", MG_Util::ConvertGLEnumToString(pname))));
+            return;
+        }
+    }
+
+    void GetTextureParameterObjectiv_State(const SharedPtr<MG_State::GLState::ITextureObject>& textureObject,
+                                           GLenum pname, GLint* params, const char* caller) {
+        if (!textureObject || !params) return;
+
+        switch (pname) {
+        case GL_TEXTURE_MAG_FILTER:
+            *params = (GLint)MG_Util::ConvertSamplerFilterModeToGLEnum(textureObject->GetSamplerObject()->GetMagFilter(),
+                                                                       SamplerMipmapMode::None);
+            break;
+        case GL_TEXTURE_MIN_FILTER:
+            *params = (GLint)MG_Util::ConvertSamplerFilterModeToGLEnum(
+                textureObject->GetSamplerObject()->GetMinFilter(), textureObject->GetSamplerObject()->GetMipmapMode());
+            break;
+        case GL_TEXTURE_MIN_LOD:
+            *params = static_cast<GLint>(textureObject->GetSamplerObject()->GetMinLod());
+            break;
+        case GL_TEXTURE_MAX_LOD:
+            *params = static_cast<GLint>(textureObject->GetSamplerObject()->GetMaxLod());
+            break;
+        case GL_TEXTURE_BASE_LEVEL:
+            *params = static_cast<GLint>(textureObject->GetLevelRange().x());
+            break;
+        case GL_TEXTURE_MAX_LEVEL:
+            *params = static_cast<GLint>(textureObject->GetLevelRange().y());
+            break;
+        case GL_TEXTURE_WRAP_S:
+            *params = (GLint)MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapS());
+            break;
+        case GL_TEXTURE_WRAP_T:
+            *params = (GLint)MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapT());
+            break;
+        case GL_TEXTURE_WRAP_R:
+            *params = (GLint)MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapR());
+            break;
+        case GL_TEXTURE_COMPARE_MODE:
+            *params =
+                (GLint)MG_Util::ConvertSamplerCompareModeToGLEnum(textureObject->GetSamplerObject()->GetCompareMode());
+            break;
+        case GL_TEXTURE_COMPARE_FUNC:
+            *params = (GLint)MG_Util::ConvertSamplerCompareFuncToGLEnum(
+                textureObject->GetSamplerObject()->GetSamplerCompareFunc());
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                             "pname is not a valid texture parameter."));
+            return;
+        }
+    }
 
     const SharedPtr<MG_State::GLState::ITextureObject>& GetTextureObjectByTarget(
         TextureUploadTarget textureUploadTarget, TextureTarget textureTarget) {
         if (TextureImpl::IsProxyTextureTarget(textureUploadTarget)) {
             auto& textureObject =
-                TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget);
+                TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget);
             if (!TextureImpl::ValidateTextureObject(textureObject)) return nullTextureObject;
             return textureObject;
         } else {
@@ -50,6 +259,18 @@ namespace MobileGL::MG_Impl::GLImpl {
         MG_Backend::gBackendFunctionsTable.GL.GenerateMipmap(target);
     }
 
+    void MaybeAutoGenerateMipmap(GLenum target, const SharedPtr<MG_State::GLState::ITextureObject>& textureObject,
+                                 Bool isProxy, GLint level) {
+        if (isProxy || level != 0 || !textureObject) {
+            return;
+        }
+        const auto it = g_autoGenerateMipmapByTextureId.find(textureObject->GetExternalIndex());
+        if (it == g_autoGenerateMipmapByTextureId.end() || !it->second) {
+            return;
+        }
+        GenerateMipmap_Backend(target);
+    }
+
     void TexSubImage3D_State(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width,
                              GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* pixels) {
         // TODO: implement
@@ -144,7 +365,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         const SizeT internalBpp = MG_Util::GetInternalBytesPerPixel(textureInternalFormat, texturePixelDataType);
 
         const SizeT srcRowSize = static_cast<SizeT>(width) * internalBpp;
-        const SizeT srcStride = (srcRowSize + unpackParams.Alignment - 1) & ~(unpackParams.Alignment - 1);
+        const SizeT srcStride = srcRowSize;
         const SizeT destRowSize = static_cast<SizeT>(texelSize.x()) * internalBpp;
 
         if (xoffset + width > static_cast<GLsizei>(texelSize.x()) ||
@@ -169,6 +390,7 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         MGLOG_D("%s: mark mip %d as dirty", __func__, level);
         textureMipmapObject->MarkStorageDirty(textureUploadTarget, level, true);
+        MaybeAutoGenerateMipmap(target, textureObject, false, level);
     }
 
     void TexSubImage1D_State(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type,
@@ -240,6 +462,9 @@ namespace MobileGL::MG_Impl::GLImpl {
         case GL_TEXTURE_LOD_BIAS:
             textureObject->GetSamplerObject()->SetLodBias(param);
             break;
+        case GL_GENERATE_MIPMAP:
+            g_autoGenerateMipmapByTextureId[textureObject->GetExternalIndex()] = (param != 0.0f);
+            break;
         case GL_TEXTURE_SWIZZLE_RGBA:
             // Not supported in this function
         case GL_TEXTURE_BORDER_COLOR:
@@ -263,69 +488,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& textureObject = GetTextureObjectByTarget(textureUploadTarget, textureTarget);
         if (!textureObject) return;
 
-        switch (pname) {
+        TextureParameterObject_State(textureObject, pname, param, __func__);
-        case GL_TEXTURE_MAG_FILTER:
-            textureObject->GetSamplerObject()->SetMagFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
-            break;
-        case GL_TEXTURE_MIN_FILTER:
-            textureObject->GetSamplerObject()->SetMinFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
-            textureObject->GetSamplerObject()->SetMipmapMode(MG_Util::ConvertGLEnumToSamplerMipmapMode(param));
-            break;
-        case GL_TEXTURE_MIN_LOD: {
-            Float maxLod = textureObject->GetSamplerObject()->GetMaxLod();
-            textureObject->GetSamplerObject()->SetLodRange(param, maxLod);
-            break;
-        }
-        case GL_TEXTURE_MAX_LOD: {
-            Float minLod = textureObject->GetSamplerObject()->GetMinLod();
-            textureObject->GetSamplerObject()->SetLodRange(minLod, param);
-            break;
-        }
-        case GL_TEXTURE_BASE_LEVEL:
-            textureObject->SetBaseLevel(param);
-            break;
-        case GL_TEXTURE_MAX_LEVEL:
-            textureObject->SetMaxLevel(param);
-            break;
-        case GL_TEXTURE_SWIZZLE_R:
-        case GL_TEXTURE_SWIZZLE_G:
-        case GL_TEXTURE_SWIZZLE_B:
-        case GL_TEXTURE_SWIZZLE_A: {
-            auto swizzleParam = MG_Util::ConvertGLEnumPnameToTextureSwizzleParam(pname);
-            auto swizzleValue = MG_Util::ConvertGLEnumToTextureSwizzleParam(param);
-            textureObject->SetSwizzleParam(swizzleParam, swizzleValue);
-            break;
-        }
-        case GL_TEXTURE_WRAP_S:
-            textureObject->GetSamplerObject()->SetWrapS(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
-            break;
-        case GL_TEXTURE_WRAP_T:
-            textureObject->GetSamplerObject()->SetWrapT(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
-            break;
-        case GL_TEXTURE_WRAP_R:
-            textureObject->GetSamplerObject()->SetWrapR(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
-            break;
-        case GL_TEXTURE_COMPARE_MODE:
-            textureObject->GetSamplerObject()->SetCompareMode(MG_Util::ConvertGLEnumToSamplerCompareMode(param));
-            break;
-        case GL_TEXTURE_COMPARE_FUNC:
-            textureObject->GetSamplerObject()->SetSamplerCompareFunc(MG_Util::ConvertGLEnumToSamplerCompareFunc(param));
-            break;
-        case GL_TEXTURE_LOD_BIAS:
-            textureObject->GetSamplerObject()->SetLodBias((GLfloat)param);
-            break;
-        case GL_TEXTURE_SWIZZLE_RGBA:
-            // Not supported in this function
-        case GL_TEXTURE_BORDER_COLOR:
-            // Not supported in this function
-        default:
-            MG_State::pGLContext->RecordError(
-                ErrorCode::InvalidEnum,
-                MakeUnique<GenericErrorInfo>(
-                    "MG_Impl/GLImpl", __func__,
-                    std::format("pname {} is not a valid texture parameter.", MG_Util::ConvertGLEnumToString(pname))));
-            return;
-        }
     }
 
     // Quick and dirty TexParameter*v implementation to make NeoForge happy.
@@ -546,6 +709,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
 
         // ======================= Processing ================================
+        if (internalformat == GL_ALPHA || format == GL_ALPHA) {
+            textureObject->SetSwizzleParamRGBA({TextureSwizzleParam::Zero, TextureSwizzleParam::Zero,
+                                                TextureSwizzleParam::Zero, TextureSwizzleParam::Red});
+        }
 
         SizeT imageSize = 0;
         const SizeT inputBpp = MG_Util::GetInputBytesPerPixel(textureInputFormat, texturePixelDataType);
@@ -554,9 +721,6 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         textureObject->SetInternalFormat(textureInternalFormat);
 
-        // if isProxy, no more pixel transfer needed below
-        if (isProxy) return;
-
         const void* originalPixels = pixels;
 
         // PBO
@@ -658,6 +822,10 @@ namespace MobileGL::MG_Impl::GLImpl {
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
 
         // ======================= Processing ================================
+        if (internalformat == GL_ALPHA || format == GL_ALPHA) {
+            textureObject->SetSwizzleParamRGBA({TextureSwizzleParam::Zero, TextureSwizzleParam::Zero,
+                                                TextureSwizzleParam::Zero, TextureSwizzleParam::Red});
+        }
 
         SizeT imageSize = 0;
         const SizeT inputBpp = MG_Util::GetInputBytesPerPixel(textureInputFormat, texturePixelDataType);
@@ -671,9 +839,6 @@ namespace MobileGL::MG_Impl::GLImpl {
                 MG_Util::ConvertTextureInternalFormatToString(textureInternalFormat).c_str());
         textureObject->SetInternalFormat(textureInternalFormat);
 
-        // if isProxy, no more pixel transfer needed below
-        if (isProxy) return;
-
         const void* originalPixels = pixels;
 
         // PBO
@@ -691,8 +856,13 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
 
         // Allocate in TextureObject
-        MGLOG_D("%s: Allocating %d bytes at mip %d", __func__, internalBytes, level);
+        if (isProxy) {
-        textureMipmapObject->AllocateStorage(textureUploadTarget, level, {{width, height, 1}, internalBytes});
+            MGLOG_D("%s: isProxy = true, not allocating", __func__);
+        } else {
+            MGLOG_D("%s: Allocating %d bytes at mip %d", __func__, internalBytes, level);
+            textureMipmapObject->AllocateStorage(textureUploadTarget, level,
+                                                 {{width, height, 1}, internalBytes});
+        }
 
         if (!originalPixels) {
             MGLOG_D("%s: No input pixel and no PBO bound, no pixel transfer", __func__);
@@ -720,6 +890,7 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         MGLOG_D("%s: mark mip %d as dirty", __func__, level);
         textureMipmapObject->MarkStorageDirty(textureUploadTarget, level, true);
+        MaybeAutoGenerateMipmap(target, textureObject, isProxy, level);
     }
 
     void TexImage1D_State(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLint border, GLenum format,
@@ -797,7 +968,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
         Bool isProxy = TextureImpl::IsProxyTextureTarget(textureUploadTarget);
         auto& textureObject =
-            isProxy ? TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget)
+            isProxy ? TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget)
                     : bindingSlot.GetBoundObject();
 
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
@@ -875,7 +1046,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
         Bool isProxy = TextureImpl::IsProxyTextureTarget(textureUploadTarget);
         auto& textureObject =
-            isProxy ? TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget)
+            isProxy ? TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget)
                     : bindingSlot.GetBoundObject();
 
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
@@ -967,7 +1138,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
         Bool isProxy = TextureImpl::IsProxyTextureTarget(textureUploadTarget);
         auto& textureObject =
-            isProxy ? TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget)
+            isProxy ? TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget)
                     : bindingSlot.GetBoundObject();
 
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
@@ -1039,6 +1210,7 @@ namespace MobileGL::MG_Impl::GLImpl {
                                                                      "pname is not a valid texture level parameter."));
             return;
         }
+        MGLOG_D("returned %u",*params);
     }
 
     void GetTexLevelParameterfv_State(GLenum target, GLint level, GLenum pname, GLfloat* params) {
@@ -1056,7 +1228,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
         Bool isProxy = TextureImpl::IsProxyTextureTarget(textureUploadTarget);
         auto& textureObject =
-            isProxy ? TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget)
+            isProxy ? TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget)
                     : bindingSlot.GetBoundObject();
 
         if (!TextureImpl::ValidateTextureObject(textureObject)) return;
@@ -1144,7 +1316,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
 
         // ======================= Processing ================================
-        static thread_local Vector<Uint> textureNames;
+        Vector<Uint> textureNames;
         MG_State::pGLContext->GenTextureNames(n, textureNames);
         Memcpy(textures, textureNames.data(), n * sizeof(GLuint));
     }
@@ -1292,15 +1464,31 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     void BindTexture_State(GLenum target, GLuint texture) {
-        // TODO: deal with condition where texture == 0
+        const Int activeUnit = MG_State::pGLContext->GetActiveTextureUnit();
-        MGLOG_D("BindTexture_State called with target: 0x%X, texture: %u", target, texture);
+        MGLOG_D("BindTexture_State called with target: 0x%X, texture: %u, unit: %d", target, texture, activeUnit);
         // ======================= Converting ================================
         TextureTarget textureTarget = MG_Util::ConvertGLEnumToTextureTarget(target);
 
         // ===================== Error Checking ==============================
-        if (!TextureImpl::ValidateTextureName(texture, true)) return;
         if (!TextureImpl::ValidateTextureTarget(textureTarget)) return;
 
+        // Name 0 unbinds the current target from the active texture unit.
+        if (texture == 0) {
+            auto& currentUnit = MG_State::pGLContext->GetTextureUnitObject(activeUnit);
+            auto& bindingSlot = currentUnit.GetBindingSlot(textureTarget);
+            bindingSlot.Bind(nullptr);
+            return;
+        }
+
+        // Some desktop-side helper code saves GL_ACTIVE_TEXTURE and later feeds it back into glBindTexture
+        // as if it were a texture name. Treating that as a no-op preserves the previous "invalid bind does not
+        // change texture state" behavior, but avoids poisoning the error state every frame.
+        if (!MG_State::pGLContext->ValidateTextureName(texture) && texture >= GL_TEXTURE0 && texture <= GL_TEXTURE31) {
+            return;
+        }
+
+        if (!TextureImpl::ValidateTextureName(texture, true)) return;
+
         // ======================= Processing ================================
         Bool doesTextureExist = MG_State::pGLContext->ValidateTextureObject(texture);
         if (!doesTextureExist) {
@@ -1331,7 +1519,9 @@ namespace MobileGL::MG_Impl::GLImpl {
         }
 
         // ======================= Processing ================================
-        MG_State::pGLContext->SetActiveTextureUnit((Int)texture - GL_TEXTURE0);
+        const Int unit = (Int)texture - GL_TEXTURE0;
+        MGLOG_D("ActiveTexture_State: unit = %d", unit);
+        MG_State::pGLContext->SetActiveTextureUnit(unit);
     }
 
     void GetTexImage_Backend(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels) {
@@ -1384,7 +1574,7 @@ namespace MobileGL::MG_Impl::GLImpl {
         auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
         Bool isProxy = TextureImpl::IsProxyTextureTarget(textureUploadTarget);
         auto& textureObject =
-            isProxy ? TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadTarget)
+            isProxy ? TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadTarget)
                     : bindingSlot.GetBoundObject();
 
         if (!TextureImpl::ValidateTextureObject(textureObject)) {
@@ -1439,27 +1629,434 @@ namespace MobileGL::MG_Impl::GLImpl {
             }
         }
 
-        // Check for multisampling
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) return;
-        if (textureObject->GetStorageType() == TextureStorageType::Mipmap) {
+    }
-            auto mipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+
-            if (mipmapObject->GetMipmapLevelCount() > 1) {
+    void CopyTextureImageToClientOrPBO_State(const SharedPtr<MG_State::GLState::ITextureObject>& textureObject,
+                                            TextureUploadTarget textureUploadTarget, GLint level, GLenum format,
+                                            GLenum type, GLsizei bufSize, void* pixels, const char* caller) {
+        if (!textureObject) return;
+
+        TextureInputFormat textureInputFormat = MG_Util::ConvertGLEnumToTextureInputFormat(format);
+        TexturePixelDataType texturePixelDataType = MG_Util::ConvertGLEnumToTexturePixelDataType(type);
+        if (!TextureImpl::ValidateTextureInputFormat(textureInputFormat)) return;
+        if (!TextureImpl::ValidateTexturePixelDataType(texturePixelDataType)) return;
+        if (!TextureImpl::ValidateTextureLevelNumber(level)) return;
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "Texture storage is not mipmap-backed."));
+            return;
+        }
+
+        auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+        if (static_cast<Uint>(level) >= textureMipmapObject->GetMipmapLevelCount()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "Texture level is out of range."));
+            return;
+        }
+
+        const auto texelSize = textureMipmapObject->GetMipmapTexelSize(textureUploadTarget, level);
+        const void* src = textureMipmapObject->MapMipmapData(textureUploadTarget, level);
+        if (!src) return;
+
+        SizeT packedSize = 0;
+        void* packedPixels = MG_Util::PixelStoreProcessor::ProcessTexturePixelsDataPack(
+            src, MG_State::pGLContext->GetPixelStoreParameters(false), textureObject->GetFormat(), texturePixelDataType,
+            textureInputFormat, texturePixelDataType, texelSize, false, packedSize);
+        if (!packedPixels || packedSize == 0) {
+            if (packedPixels) free(packedPixels);
+            return;
+        }
+
+        if (bufSize >= 0 && static_cast<SizeT>(bufSize) < packedSize) {
+            free(packedPixels);
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "Destination buffer is too small."));
+            return;
+        }
+
+        const auto& pixelPackBufferObject =
+            MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::PixelPack).GetBoundObject();
+        if (pixelPackBufferObject) {
+            const SizeT offset = reinterpret_cast<SizeT>(pixels);
+            if (offset + packedSize > pixelPackBufferObject->GetSize()) {
+                free(packedPixels);
                 MG_State::pGLContext->RecordError(
                     ErrorCode::InvalidOperation,
-                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "GetTexImage_State",
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller, "Pixel pack buffer is too small."));
-                                                 "Multisampled textures not supported for GetTexImage"));
                 return;
             }
+            pixelPackBufferObject->UploadSubData({packedPixels, packedSize}, offset);
+        } else if (pixels) {
+            Memcpy(pixels, packedPixels, packedSize);
         }
+
+        free(packedPixels);
     }
 
     /* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
+    void CreateTextures(GLenum target, GLsizei n, GLuint* textures) {
+        if (n < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "n must be non-negative."));
+            return;
+        }
+        if (n > 0 && !textures) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture output pointer cannot be null."));
+            return;
+        }
+
+        TextureTarget textureTarget = MG_Util::ConvertGLEnumToTextureTarget(target);
+        if (!TextureImpl::ValidateTextureTarget(textureTarget)) return;
+
+        Vector<Uint> textureNames;
+        MG_State::pGLContext->GenTextureNames(n, textureNames);
+        for (GLsizei i = 0; i < n; ++i) {
+            textures[i] = textureNames[i];
+            MG_State::pGLContext->CreateTextureObject(textureNames[i], textureTarget);
+        }
+    }
+
+    void TextureStorage2D(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject) return;
+        if (levels < 1) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "levels must be positive."));
+            return;
+        }
+        if (!TextureImpl::ValidateTextureSizeRange(width, height, 1)) return;
+
+        TextureInternalFormat textureInternalFormat = MG_Util::ConvertGLEnumToTextureInternalFormat(internalformat);
+        textureInternalFormat = MG_Util::ConvertInternalFormatToSized(textureInternalFormat, TextureInputFormat::RGBA,
+                                                                      TexturePixelDataType::UnsignedByte);
+        if (!TextureImpl::ValidateTextureInternalFormat(textureInternalFormat)) return;
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture storage is not mipmap-backed."));
+            return;
+        }
+
+        auto textureUploadTarget = GetPrimaryUploadTarget(textureObject);
+        if (!TextureImpl::ValidateTextureUploadTarget(textureUploadTarget)) return;
+        auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+
+        GLenum realInternalFormat = internalformat;
+        GLenum realFormat = GL_RGBA;
+        GLenum realType = GL_UNSIGNED_BYTE;
+        MG_Util::TextureFormatProcessor::NormalizePixelFormat(
+            MG_Util::ConvertTextureInternalFormatToGLEnum(textureInternalFormat), PixelFormatNormalizeOptionBit::None,
+            &realInternalFormat, &realFormat, &realType);
+        const SizeT bytesPerPixel = MG_Util::GetInternalBytesPerPixel(
+            textureInternalFormat, MG_Util::ConvertGLEnumToTexturePixelDataType(realType));
+
+        textureObject->SetInternalFormat(textureInternalFormat);
+        for (GLsizei level = 0; level < levels; ++level) {
+            const GLsizei levelWidth = std::max<GLsizei>(1, width >> level);
+            const GLsizei levelHeight = std::max<GLsizei>(1, height >> level);
+            const SizeT byteSize = static_cast<SizeT>(levelWidth) * static_cast<SizeT>(levelHeight) * bytesPerPixel;
+            textureMipmapObject->AllocateStorage(textureUploadTarget, level, {{levelWidth, levelHeight, 1}, byteSize});
+            textureMipmapObject->MarkStorageDirty(textureUploadTarget, level, false);
+        }
+    }
+
+    void TextureSubImage2D(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
+                           GLenum format, GLenum type, const void* pixels) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject) return;
+
+        TextureInputFormat textureInputFormat = MG_Util::ConvertGLEnumToTextureInputFormat(format);
+        TexturePixelDataType texturePixelDataType = MG_Util::ConvertGLEnumToTexturePixelDataType(type);
+        if (!TextureImpl::ValidateTexturePixelDataType(texturePixelDataType)) return;
+        if (!TextureImpl::ValidateTextureInputFormat(textureInputFormat)) return;
+        if (!TextureImpl::ValidateTextureLevelNumber(level)) return;
+        if (!TextureImpl::ValidateTextureSizeRange(width, height, 1)) return;
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture storage is not mipmap-backed."));
+            return;
+        }
+
+        auto textureUploadTarget = GetPrimaryUploadTarget(textureObject);
+        if (!TextureImpl::ValidateTextureUploadTarget(textureUploadTarget)) return;
+        if (!TextureImpl::ValidateTextureInternalFormatCompatibleWithInput(textureInputFormat, textureObject->GetFormat(),
+                                                                           texturePixelDataType))
+            return;
+
+        auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+        if (static_cast<Uint>(level) >= textureMipmapObject->GetMipmapLevelCount()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture level is out of range."));
+            return;
+        }
+        if (!TextureImpl::ValidateTextureSubImageOffsets(textureObject, xoffset, width, yoffset, height)) return;
+
+        const void* originalPixels = pixels;
+        const auto& pixelUnpackBufferObject =
+            MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::PixelUnpack).GetBoundObject();
+        if (pixelUnpackBufferObject) {
+            originalPixels = reinterpret_cast<const char*>(pixelUnpackBufferObject->GetDataReadOnly()->data()) +
+                             reinterpret_cast<SizeT>(pixels);
+        }
+        if (!originalPixels) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "No data supplied from pixels parameter and no PBO bound."));
+            return;
+        }
+
+        SizeT inputSize = 0;
+        void* processedPixels = MG_Util::PixelStoreProcessor::ProcessTexturePixelsDataUnpack(
+            originalPixels, MG_State::pGLContext->GetPixelStoreParameters(true), textureObject->GetFormat(),
+            textureInputFormat, texturePixelDataType, {width, height, 1}, false, inputSize);
+        if (!processedPixels || inputSize == 0) {
+            if (processedPixels) free(processedPixels);
+            return;
+        }
+
+        const auto texelSize = textureMipmapObject->GetMipmapTexelSize(textureUploadTarget, level);
+        const SizeT internalBpp = MG_Util::GetInternalBytesPerPixel(textureObject->GetFormat(), texturePixelDataType);
+        const SizeT srcRowSize = static_cast<SizeT>(width) * internalBpp;
+        const SizeT destRowSize = static_cast<SizeT>(texelSize.x()) * internalBpp;
+
+        const auto* srcData = static_cast<const Uint8*>(processedPixels);
+        Uint8* destData = static_cast<Uint8*>(textureMipmapObject->MapMipmapData(textureUploadTarget, level));
+        if (destData) {
+            for (GLsizei y = 0; y < height; ++y) {
+                const SizeT destRowOffset = static_cast<SizeT>(yoffset + y) * destRowSize +
+                                            static_cast<SizeT>(xoffset) * internalBpp;
+                const SizeT srcRowOffset = static_cast<SizeT>(y) * srcRowSize;
+                Memcpy(destData + destRowOffset, srcData + srcRowOffset, srcRowSize);
+            }
+            textureMipmapObject->MarkStorageDirty(textureUploadTarget, level, true);
+        }
+        free(processedPixels);
+    }
+
+    void TextureParameteri(GLuint texture, GLenum pname, GLint param) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        TextureParameterObject_State(textureObject, pname, param, __func__);
+    }
+
+    void TextureParameterf(GLuint texture, GLenum pname, GLfloat param) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        TextureParameterObjectf_State(textureObject, pname, param, __func__);
+    }
+
+    void TextureParameteriv(GLuint texture, GLenum pname, const GLint* params) {
+        if (!params) return;
+        if (pname == GL_TEXTURE_SWIZZLE_RGBA) {
+            auto textureObject = GetTextureObjectByName(texture, __func__);
+            if (!textureObject) return;
+            Vec4<TextureSwizzleParam> swizzleParams;
+            for (int i = 0; i < 4; i++) {
+                swizzleParams[i] = MG_Util::ConvertGLEnumToTextureSwizzleParam(static_cast<GLint>(params[i]));
+                if (TextureSwizzleParam::Unknown == swizzleParams[i]) {
+                    MG_State::pGLContext->RecordError(
+                        ErrorCode::InvalidEnum,
+                        MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "`params` is not valid."));
+                    return;
+                }
+            }
+            textureObject->SetSwizzleParamRGBA(swizzleParams);
+            return;
+        }
+        TextureParameteri(texture, pname, *params);
+    }
+
+    void BindTextureUnit(GLuint unit, GLuint texture) {
+        if (unit >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture unit is out of range."));
+            return;
+        }
+
+        auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(static_cast<Int>(unit));
+        if (texture == 0) {
+            for (auto& slot : textureUnit.GetAllBindingSlots()) {
+                slot.Bind(nullptr);
+            }
+            return;
+        }
+
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject) return;
+        textureUnit.GetBindingSlot(textureObject->GetTarget()).Bind(textureObject);
+    }
+
+    void GetTextureImage(GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void* pixels) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject) return;
+        const auto uploadTarget = GetPrimaryUploadTarget(textureObject);
+        if (MG_Backend::pActiveBackendObject != nullptr &&
+            MG_Backend::pActiveBackendObject->GetBackendType() == BackendType::DirectVulkan &&
+            MG_Backend::gBackendFunctionsTable.GL.GetTextureImage != nullptr) {
+            MG_Backend::gBackendFunctionsTable.GL.GetTextureImage(textureObject, uploadTarget, level, format, type,
+                                                                  bufSize, pixels);
+            return;
+        }
+        CopyTextureImageToClientOrPBO_State(textureObject, uploadTarget, level, format, type, bufSize, pixels,
+                                            __func__);
+    }
+
+    void GetTextureSubImage(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width,
+                            GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void* pixels) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject) return;
+        if (level < 0 || xoffset < 0 || yoffset < 0 || zoffset < 0 || width < 0 || height < 0 || depth < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture sub-image range is invalid."));
+            return;
+        }
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture storage is not mipmap-backed."));
+            return;
+        }
+
+        const auto uploadTarget = GetPrimaryUploadTarget(textureObject);
+        auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+        if (static_cast<Uint>(level) >= textureMipmapObject->GetMipmapLevelCount()) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture level is out of range."));
+            return;
+        }
+
+        const auto texelSize = textureMipmapObject->GetMipmapTexelSize(uploadTarget, static_cast<Uint>(level));
+        const Bool isFullLevelRead = xoffset == 0 && yoffset == 0 && zoffset == 0 &&
+                                     width == texelSize.x() && height == texelSize.y() &&
+                                     depth == texelSize.z();
+        if (!isFullLevelRead) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Partial texture sub-image readback is not implemented yet."));
+            return;
+        }
+
+        GetTextureImage(texture, level, format, type, bufSize, pixels);
+    }
+
+    void GetTextureParameteriv(GLuint texture, GLenum pname, GLint* params) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        GetTextureParameterObjectiv_State(textureObject, pname, params, __func__);
+    }
+
+    void GetTextureLevelParameteriv(GLuint texture, GLint level, GLenum pname, GLint* params) {
+        auto textureObject = GetTextureObjectByName(texture, __func__);
+        if (!textureObject || !params) return;
+        if (!TextureImpl::ValidateTextureLevelNumber(level)) return;
+        if (textureObject->GetStorageType() != TextureStorageType::Mipmap) return;
+
+        auto textureUploadTarget = GetPrimaryUploadTarget(textureObject);
+        auto* textureMipmapObject = static_cast<MG_State::GLState::TextureObjectMipmap*>(textureObject.get());
+        switch (pname) {
+        case GL_TEXTURE_WIDTH:
+            *params = textureMipmapObject->GetMipmapTexelSize(textureUploadTarget, level).x();
+            break;
+        case GL_TEXTURE_HEIGHT:
+            *params = textureMipmapObject->GetMipmapTexelSize(textureUploadTarget, level).y();
+            break;
+        case GL_TEXTURE_DEPTH:
+            *params = textureMipmapObject->GetMipmapTexelSize(textureUploadTarget, level).z();
+            break;
+        case GL_TEXTURE_INTERNAL_FORMAT:
+            *params = (GLint)MG_Util::ConvertTextureInternalFormatToGLEnum(textureObject->GetFormat());
+            break;
+        default:
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "pname is not a valid texture level parameter."));
+            return;
+        }
+    }
+
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format) {
+        if (unit >= MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Image texture unit is out of range."));
+            return;
+        }
+        if (level < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture level must be non-negative."));
+            return;
+        }
+        if (layer < 0 && layered == GL_FALSE) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture layer must be non-negative."));
+            return;
+        }
+        if (access != GL_READ_ONLY && access != GL_WRITE_ONLY && access != GL_READ_WRITE) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidEnum,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Invalid image texture access."));
+            return;
+        }
+
+        SharedPtr<MG_State::GLState::ITextureObject> textureObject;
+        if (texture != 0) {
+            if (!MG_State::pGLContext->ValidateTextureObject(texture)) {
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidValue,
+                    MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__, "Texture name is not a texture object."));
+                return;
+            }
+            textureObject = MG_State::pGLContext->GetTextureObject(texture);
+        }
+
+        MG_State::pGLContext->GetImageTextureBinding(static_cast<Int>(unit))
+            .Bind(textureObject, level, layered, layer, access, format);
+
+        auto bindImageTexture = MG_Backend::gBackendFunctionsTable.GL.BindImageTexture;
+        if (!bindImageTexture) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", __func__,
+                                             "Backend does not support image texture binding."));
+            return;
+        }
+        bindImageTexture(unit, texture, level, layered, layer, access, format);
+    }
+
     void GenerateMipmap(GLenum target) {
         GenerateMipmap_Backend(target);
     }
 
     void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels) {
         GetTexImage_State(target, level, format, type, pixels);
-        GetTexImage_Backend(target, level, format, type, pixels);
+        if (MG_Backend::pActiveBackendObject != nullptr &&
+            MG_Backend::pActiveBackendObject->GetBackendType() == BackendType::DirectVulkan &&
+            MG_Backend::gBackendFunctionsTable.GL.GetTexImage != nullptr) {
+            GetTexImage_Backend(target, level, format, type, pixels);
+            return;
+        }
+        TextureUploadTarget textureUploadTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+        TextureTarget textureTarget = MG_Util::ConvertGLEnumToTextureTarget(target);
+        auto& activeUnit = MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+        const auto& textureObject = activeUnit.GetBindingSlot(textureTarget).GetBoundObject();
+        CopyTextureImageToClientOrPBO_State(textureObject, textureUploadTarget, level, format, type, -1, pixels,
+                                            __func__);
     }
 
     void TexSubImage3D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width,

MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.h

@@ -11,8 +11,23 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format);
     void GenerateMipmap(GLenum target);
     void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+    void CreateTextures(GLenum target, GLsizei n, GLuint* textures);
+    void TextureStorage2D(GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+    void TextureSubImage2D(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
+                           GLenum format, GLenum type, const void* pixels);
+    void TextureParameterf(GLuint texture, GLenum pname, GLfloat param);
+    void TextureParameteri(GLuint texture, GLenum pname, GLint param);
+    void TextureParameteriv(GLuint texture, GLenum pname, const GLint* params);
+    void BindTextureUnit(GLuint unit, GLuint texture);
+    void GetTextureImage(GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void* pixels);
+    void GetTextureSubImage(GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width,
+                            GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void* pixels);
+    void GetTextureParameteriv(GLuint texture, GLenum pname, GLint* params);
+    void GetTextureLevelParameteriv(GLuint texture, GLint level, GLenum pname, GLint* params);
     void TexSubImage3D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width,
                        GLsizei height, GLsizei depth, GLenum format, GLenum type, const void* pixels);
     void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,

MobileGL/MG_Impl/GLImpl/VertexArray/GL_VertexArray.cpp

@@ -8,11 +8,34 @@
 
 #include "GL_VertexArray.h"
 #include "Validators.h"
+#include <MG_Impl/GLImpl/Buffer/Validators.h>
 #include <MG_State/GLState/Core.h>
 #include <MG_State/GLState/ErrorState/Error.h>
 #include <MG_Util/Converters/GLToMG/DataTypeConverter.h>
 
 namespace MobileGL::MG_Impl::GLImpl {
+    SharedPtr<MG_State::GLState::VertexArrayObject> GetNamedVertexArrayObject_State(GLuint vaobj,
+                                                                                   const char* caller) {
+        if (!VertexArrayImpl::ValidateVertexArrayName(vaobj)) return nullptr;
+        if (!VertexArrayImpl::ValidateVertexArrayObject(vaobj)) return nullptr;
+        return MG_State::pGLContext->GetVertexArrayObject(vaobj);
+    }
+
+    SharedPtr<MG_State::GLState::BufferObject> GetVertexArrayBufferObject_State(GLuint buffer, const char* caller) {
+        if (!BufferImpl::ValidateBufferName(buffer, true)) return nullptr;
+        if (buffer == 0) return nullptr;
+
+        auto& bufferObject = MG_State::pGLContext->GetBufferObject(buffer);
+        if (!bufferObject) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidOperation,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", caller,
+                                             std::format("Buffer object {} does not exist.", buffer)));
+            return nullptr;
+        }
+        return bufferObject;
+    }
+
     void DisableVertexAttribArray_State(GLuint index) {
         if (!VertexArrayImpl::ValidateVertexAttributeIndex(index)) return;
 
@@ -60,12 +83,6 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         auto& vboSlot = MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Vertex);
         auto& vbo = vboSlot.GetBoundObject();
-        if (!vbo) {
-            MG_State::pGLContext->RecordError(
-                ErrorCode::InvalidOperation, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "VertexAttribPointer_State",
-                                                                          "No buffer is bound to GL_ARRAY_BUFFER."));
-            return;
-        }
 
         auto offset = reinterpret_cast<SizeT>(pointer);
 
@@ -91,12 +108,6 @@ namespace MobileGL::MG_Impl::GLImpl {
 
         auto& vboSlot = MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Vertex);
         auto& vbo = vboSlot.GetBoundObject();
-        if (!vbo) {
-            MG_State::pGLContext->RecordError(
-                ErrorCode::InvalidOperation, MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "VertexAttribPointer_State",
-                                                                          "No buffer is bound to GL_ARRAY_BUFFER."));
-            return;
-        }
 
         SizeT offset = reinterpret_cast<SizeT>(pointer);
 
@@ -150,27 +161,99 @@ namespace MobileGL::MG_Impl::GLImpl {
             return;
         }
 
-        static thread_local Vector<Uint> vaos;
+        Vector<Uint> vaos;
         MG_State::pGLContext->GenVertexArrayNames(n, vaos);
         Memcpy(arrays, vaos.data(), n * sizeof(GLuint));
     }
 
-    GLboolean IsVertexArray_State(GLuint array) {
+    void CreateVertexArrays_State(GLsizei n, GLuint* arrays) {
-        if (array == 0) {
+        if (n < 0) {
-            MG_State::pGLContext->RecordError(ErrorCode::InvalidValue,
-                                              MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "IsVertexArray_State",
-                                                                           "Vertex array name 0 is not supported."));
-            return GL_FALSE;
-        }
-        if (!VertexArrayImpl::ValidateVertexArrayName(array)) return GL_FALSE;
-        if (!MG_State::pGLContext->ValidateVertexArrayObject(array)) {
             MG_State::pGLContext->RecordError(
-                ErrorCode::InvalidOperation,
+                ErrorCode::InvalidValue,
-                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "IsVertexArray_State",
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "CreateVertexArrays_State", "n must be non-negative."));
-                                             std::format("Vertex array object {} does not exist.", array)));
+            return;
-            return GL_FALSE;
         }
-        return GL_TRUE;
+
+        Vector<Uint> vaos;
+        MG_State::pGLContext->GenVertexArrayNames(n, vaos);
+        for (GLsizei i = 0; i < n; ++i) {
+            MG_State::pGLContext->CreateVertexArrayObject(vaos[i]);
+            arrays[i] = vaos[i];
+        }
+    }
+
+    void DisableVertexArrayAttrib_State(GLuint vaobj, GLuint index) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "DisableVertexArrayAttrib_State");
+        if (!vao) return;
+        if (!VertexArrayImpl::ValidateVertexAttributeIndex(index)) return;
+        vao->DisableAttribute(index);
+    }
+
+    void EnableVertexArrayAttrib_State(GLuint vaobj, GLuint index) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "EnableVertexArrayAttrib_State");
+        if (!vao) return;
+        if (!VertexArrayImpl::ValidateVertexAttributeIndex(index)) return;
+        vao->EnableAttribute(index);
+    }
+
+    void VertexArrayElementBuffer_State(GLuint vaobj, GLuint buffer) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "VertexArrayElementBuffer_State");
+        if (!vao) return;
+        auto bufferObject = GetVertexArrayBufferObject_State(buffer, "VertexArrayElementBuffer_State");
+        if (buffer != 0 && !bufferObject) return;
+        vao->GetIndexBufferBindingSlot().Bind(bufferObject);
+    }
+
+    void VertexArrayVertexBuffer_State(GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset,
+                                       GLsizei stride) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "VertexArrayVertexBuffer_State");
+        if (!vao) return;
+        if (!VertexArrayImpl::ValidateVertexAttributeIndex(bindingindex)) return;
+        if (offset < 0 || stride < 0) {
+            MG_State::pGLContext->RecordError(
+                ErrorCode::InvalidValue,
+                MakeUnique<GenericErrorInfo>("MG_Impl/GLImpl", "VertexArrayVertexBuffer_State",
+                                             "offset and stride must be non-negative."));
+            return;
+        }
+        auto bufferObject = GetVertexArrayBufferObject_State(buffer, "VertexArrayVertexBuffer_State");
+        if (buffer != 0 && !bufferObject) return;
+
+        const auto& attr = vao->GetAttribute(bindingindex);
+        vao->SetAttributeFormat(bindingindex, attr.Size, attr.Type, attr.Normalized, stride, static_cast<SizeT>(offset),
+                                attr.IsInteger);
+        vao->BindAttributeBuffer(bindingindex, bufferObject);
+    }
+
+    void VertexArrayAttribFormat_State(GLuint vaobj, GLuint attribindex, GLint size, GLenum type,
+                                       GLboolean normalized, GLuint relativeoffset) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "VertexArrayAttribFormat_State");
+        if (!vao) return;
+        if (!VertexArrayImpl::ValidateVertexAttributeIndex(attribindex)) return;
+
+        DataType dataType = MG_Util::ConvertGLEnumToDataType(type);
+        const auto& attr = vao->GetAttribute(attribindex);
+        if (!VertexArrayImpl::ValidateVertexAttribPointerParams(attribindex, size, dataType, attr.Stride)) return;
+
+        vao->SetAttributeFormat(attribindex, size, dataType, normalized, attr.Stride, relativeoffset, false);
+    }
+
+    void VertexArrayAttribIFormat_State(GLuint vaobj, GLuint attribindex, GLint size, GLenum type,
+                                        GLuint relativeoffset) {
+        auto vao = GetNamedVertexArrayObject_State(vaobj, "VertexArrayAttribIFormat_State");
+        if (!vao) return;
+        if (!VertexArrayImpl::ValidateVertexAttributeIndex(attribindex)) return;
+
+        DataType dataType = MG_Util::ConvertGLEnumToDataType(type);
+        const auto& attr = vao->GetAttribute(attribindex);
+        if (!VertexArrayImpl::ValidateVertexAttribPointerParams(attribindex, size, dataType, attr.Stride)) return;
+
+        vao->SetAttributeFormat(attribindex, size, dataType, false, attr.Stride, relativeoffset, true);
+    }
+
+    GLboolean IsVertexArray_State(GLuint array) {
+        if (array == 0) return GL_FALSE;
+        return MG_State::pGLContext->ValidateVertexArrayObject(array) ? GL_TRUE : GL_FALSE;
     }
 
     void VertexAttribDivisor_State(GLuint index, GLuint divisor) {
@@ -188,6 +271,35 @@ namespace MobileGL::MG_Impl::GLImpl {
     }
 
     /* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
+    void CreateVertexArrays(GLsizei n, GLuint* arrays) {
+        CreateVertexArrays_State(n, arrays);
+    }
+
+    void DisableVertexArrayAttrib(GLuint vaobj, GLuint index) {
+        DisableVertexArrayAttrib_State(vaobj, index);
+    }
+
+    void EnableVertexArrayAttrib(GLuint vaobj, GLuint index) {
+        EnableVertexArrayAttrib_State(vaobj, index);
+    }
+
+    void VertexArrayElementBuffer(GLuint vaobj, GLuint buffer) {
+        VertexArrayElementBuffer_State(vaobj, buffer);
+    }
+
+    void VertexArrayVertexBuffer(GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride) {
+        VertexArrayVertexBuffer_State(vaobj, bindingindex, buffer, offset, stride);
+    }
+
+    void VertexArrayAttribFormat(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized,
+                                 GLuint relativeoffset) {
+        VertexArrayAttribFormat_State(vaobj, attribindex, size, type, normalized, relativeoffset);
+    }
+
+    void VertexArrayAttribIFormat(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset) {
+        VertexArrayAttribIFormat_State(vaobj, attribindex, size, type, relativeoffset);
+    }
+
     void VertexAttribDivisor(GLuint index, GLuint divisor) {
         VertexAttribDivisor_State(index, divisor);
     }

MobileGL/MG_Impl/GLImpl/VertexArray/GL_VertexArray.h

@@ -11,6 +11,14 @@
 
 namespace MobileGL::MG_Impl::GLImpl {
     /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
+    void CreateVertexArrays(GLsizei n, GLuint* arrays);
+    void DisableVertexArrayAttrib(GLuint vaobj, GLuint index);
+    void EnableVertexArrayAttrib(GLuint vaobj, GLuint index);
+    void VertexArrayElementBuffer(GLuint vaobj, GLuint buffer);
+    void VertexArrayVertexBuffer(GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
+    void VertexArrayAttribFormat(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized,
+                                 GLuint relativeoffset);
+    void VertexArrayAttribIFormat(GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
     void VertexAttribDivisor(GLuint index, GLuint divisor);
     GLboolean IsVertexArray(GLuint array);
     void DisableVertexAttribArray(GLuint index);

MobileGL/MG_Impl/GetProcAddress.cpp

@@ -321,22 +321,39 @@ namespace MobileGL::MG_Impl {
         GETPROC(glClearBufferfi, name);
         GETPROC(glGetStringi, name);
         GETPROC(glIsRenderbuffer, name);
+        GETPROC(glIsRenderbufferEXT, name);
         GETPROC(glBindRenderbuffer, name);
+        GETPROC(glBindRenderbufferEXT, name);
         GETPROC(glDeleteRenderbuffers, name);
+        GETPROC(glDeleteRenderbuffersEXT, name);
         GETPROC(glGenRenderbuffers, name);
+        GETPROC(glGenRenderbuffersEXT, name);
         GETPROC(glRenderbufferStorage, name);
+        GETPROC(glRenderbufferStorageEXT, name);
         GETPROC(glGetRenderbufferParameteriv, name);
+        GETPROC(glGetRenderbufferParameterivEXT, name);
         GETPROC(glIsFramebuffer, name);
+        GETPROC(glIsFramebufferEXT, name);
         GETPROC(glBindFramebuffer, name);
+        GETPROC(glBindFramebufferEXT, name);
         GETPROC(glDeleteFramebuffers, name);
+        GETPROC(glDeleteFramebuffersEXT, name);
         GETPROC(glGenFramebuffers, name);
+        GETPROC(glGenFramebuffersEXT, name);
         GETPROC(glCheckFramebufferStatus, name);
+        GETPROC(glCheckFramebufferStatusEXT, name);
         GETPROC(glFramebufferTexture1D, name);
+        GETPROC(glFramebufferTexture1DEXT, name);
         GETPROC(glFramebufferTexture2D, name);
+        GETPROC(glFramebufferTexture2DEXT, name);
         GETPROC(glFramebufferTexture3D, name);
+        GETPROC(glFramebufferTexture3DEXT, name);
         GETPROC(glFramebufferRenderbuffer, name);
+        GETPROC(glFramebufferRenderbufferEXT, name);
         GETPROC(glGetFramebufferAttachmentParameteriv, name);
+        GETPROC(glGetFramebufferAttachmentParameterivEXT, name);
         GETPROC(glGenerateMipmap, name);
+        GETPROC(glGenerateMipmapEXT, name);
         GETPROC(glBlitFramebuffer, name);
         GETPROC(glRenderbufferStorageMultisample, name);
         GETPROC(glFramebufferTextureLayer, name);

MobileGL/MG_State/EGLState/Core.cpp

@@ -14,6 +14,69 @@ namespace MobileGL {
             namespace {
                 constexpr EGLint EGL_DISPLAY_MAJOR_VERSION = 1;
                 constexpr EGLint EGL_DISPLAY_MINOR_VERSION = 5;
+                constexpr EGLint DEFAULT_MAX_PBUFFER_SIZE = 16384;
+
+                template <typename AttrType>
+                Optional<AttrType> ParseAttribValue(const AttrType* attribList, EGLint attrib) {
+                    if (!attribList) {
+                        return Nullopt;
+                    }
+                    for (SizeT i = 0; attribList[i] != EGL_NONE; i += 2) {
+                        if (attribList[i] == static_cast<AttrType>(attrib)) {
+                            return attribList[i + 1];
+                        }
+                    }
+                    return Nullopt;
+                }
+
+                EGLint QueryDefaultX11VisualId() {
+#if defined(__linux__) && !defined(__ANDROID__)
+                    const char* displayName = std::getenv("DISPLAY");
+                    if (!displayName) {
+                        return 0;
+                    }
+
+                    void* x11Lib = dlopen("libX11.so.6", RTLD_LOCAL | RTLD_NOW);
+                    if (!x11Lib) {
+                        x11Lib = dlopen("libX11.so", RTLD_LOCAL | RTLD_NOW);
+                    }
+                    if (!x11Lib) {
+                        return 0;
+                    }
+
+                    using XOpenDisplayFn = void* (*)(const char*);
+                    using XDefaultScreenFn = int (*)(void*);
+                    using XDefaultVisualFn = void* (*)(void*, int);
+                    using XVisualIDFromVisualFn = unsigned long (*)(void*);
+                    using XCloseDisplayFn = int (*)(void*);
+
+                    auto* xOpenDisplay = reinterpret_cast<XOpenDisplayFn>(dlsym(x11Lib, "XOpenDisplay"));
+                    auto* xDefaultScreen = reinterpret_cast<XDefaultScreenFn>(dlsym(x11Lib, "XDefaultScreen"));
+                    auto* xDefaultVisual = reinterpret_cast<XDefaultVisualFn>(dlsym(x11Lib, "XDefaultVisual"));
+                    auto* xVisualIDFromVisual =
+                        reinterpret_cast<XVisualIDFromVisualFn>(dlsym(x11Lib, "XVisualIDFromVisual"));
+                    auto* xCloseDisplay = reinterpret_cast<XCloseDisplayFn>(dlsym(x11Lib, "XCloseDisplay"));
+                    if (!xOpenDisplay || !xDefaultScreen || !xDefaultVisual || !xVisualIDFromVisual || !xCloseDisplay) {
+                        dlclose(x11Lib);
+                        return 0;
+                    }
+
+                    void* display = xOpenDisplay(displayName);
+                    if (!display) {
+                        dlclose(x11Lib);
+                        return 0;
+                    }
+
+                    const int screen = xDefaultScreen(display);
+                    void* visual = xDefaultVisual(display, screen);
+                    const auto visualId = visual ? static_cast<EGLint>(xVisualIDFromVisual(visual)) : 0;
+                    xCloseDisplay(display);
+                    dlclose(x11Lib);
+                    return visualId;
+#else
+                    return 0;
+#endif
+                }
             } // namespace
 
             Bool EGLContext::DisplayLookupKey::operator==(const DisplayLookupKey& rhs) const {
@@ -65,30 +128,6 @@ namespace MobileGL {
                 return apiIt->second;
             }
 
-            Optional<EGLint> EGLContext::ParseAttribValue(const EGLint* attribList, EGLint attrib) {
-                if (!attribList) {
-                    return Nullopt;
-                }
-                for (SizeT i = 0; attribList[i] != EGL_NONE; i += 2) {
-                    if (attribList[i] == attrib) {
-                        return attribList[i + 1];
-                    }
-                }
-                return Nullopt;
-            }
-
-            Optional<EGLAttrib> EGLContext::ParseAttribValue(const EGLAttrib* attribList, EGLint attrib) {
-                if (!attribList) {
-                    return Nullopt;
-                }
-                for (SizeT i = 0; attribList[i] != EGL_NONE; i += 2) {
-                    if (attribList[i] == static_cast<EGLAttrib>(attrib)) {
-                        return attribList[i + 1];
-                    }
-                }
-                return Nullopt;
-            }
-
             EGLContext::EGLDisplayHandle EGLContext::GetOrCreateDisplay(Uint64 nativeDisplayKey, EGLenum platform) {
                 const DisplayLookupKey key = {
                     .NativeDisplayKey = nativeDisplayKey,
@@ -110,30 +149,31 @@ namespace MobileGL {
                     .SwapInterval = 1,
                 };
 
-                const auto config = CreateDefaultConfig(display);
+                displayObject.Configs.push_back(CreateDefaultConfig(display, 1, 0));
-                displayObject.Configs.push_back(config);
+                displayObject.Configs.push_back(CreateDefaultConfig(display, 2, 8));
 
                 m_displays[display] = displayObject;
                 m_displayLookup[key] = display;
                 return display;
             }
 
-            EGLContext::EGLConfigHandle EGLContext::CreateDefaultConfig(EGLDisplayHandle display) {
+            EGLContext::EGLConfigHandle EGLContext::CreateDefaultConfig(EGLDisplayHandle display, EGLint configId,
+                                                                        EGLint stencilSize) {
                 const auto config = EncodeHandle<EGLConfigHandle>(m_nextConfigHandle++);
                 ConfigObject cfg = {
                     .Display = display,
-                    .ConfigId = 1,
+                    .ConfigId = configId,
                     .RedSize = 8,
                     .GreenSize = 8,
                     .BlueSize = 8,
                     .AlphaSize = 8,
                     .DepthSize = 24,
-                    .StencilSize = 8,
+                    .StencilSize = stencilSize,
                     .SurfaceType = EGL_WINDOW_BIT | EGL_PBUFFER_BIT | EGL_PIXMAP_BIT,
                     .RenderableType = EGL_OPENGL_BIT | EGL_OPENGL_ES2_BIT | EGL_OPENGL_ES3_BIT,
                     .MinSwapInterval = 0,
                     .MaxSwapInterval = 4,
-                    .NativeVisualId = 0,
+                    .NativeVisualId = QueryDefaultX11VisualId(),
                 };
 #if defined(ANDROID) || defined(__ANDROID__)
                 cfg.NativeVisualId = AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
@@ -305,7 +345,6 @@ namespace MobileGL {
             Bool EGLContext::ChooseConfig(EGLDisplayHandle display, const EGLint* attribList, EGLConfigHandle* configs,
                                           EGLint configSize, EGLint* numConfig) {
                 const std::lock_guard<std::recursive_mutex> lock(m_mutex);
-                (void)attribList;
                 auto* displayObject = TryGetDisplay(display);
                 if (!displayObject) {
                     SetError(EGL_BAD_DISPLAY);
@@ -320,14 +359,84 @@ namespace MobileGL {
                     return false;
                 }
 
-                *numConfig = static_cast<EGLint>(displayObject->Configs.size());
+                Vector<EGLConfigHandle> matchedConfigs;
+                for (const auto config : displayObject->Configs) {
+                    const auto* cfg = TryGetConfig(config);
+                    if (!cfg) {
+                        continue;
+                    }
+
+                    Bool matches = true;
+                    if (attribList) {
+                        for (SizeT i = 0; attribList[i] != EGL_NONE; i += 2) {
+                            const EGLint attr = attribList[i];
+                            const EGLint requested = attribList[i + 1];
+                            if (requested == EGL_DONT_CARE) {
+                                continue;
+                            }
+
+                            switch (attr) {
+                            case EGL_CONFIG_ID:
+                                matches = cfg->ConfigId == requested;
+                                break;
+                            case EGL_RED_SIZE:
+                                matches = cfg->RedSize >= requested;
+                                break;
+                            case EGL_GREEN_SIZE:
+                                matches = cfg->GreenSize >= requested;
+                                break;
+                            case EGL_BLUE_SIZE:
+                                matches = cfg->BlueSize >= requested;
+                                break;
+                            case EGL_ALPHA_SIZE:
+                                matches = cfg->AlphaSize >= requested;
+                                break;
+                            case EGL_BUFFER_SIZE:
+                                matches = (cfg->RedSize + cfg->GreenSize + cfg->BlueSize + cfg->AlphaSize) >= requested;
+                                break;
+                            case EGL_DEPTH_SIZE:
+                                matches = cfg->DepthSize >= requested;
+                                break;
+                            case EGL_STENCIL_SIZE:
+                                matches = cfg->StencilSize >= requested;
+                                break;
+                            case EGL_SURFACE_TYPE:
+                                matches = (cfg->SurfaceType & requested) == requested;
+                                break;
+                            case EGL_RENDERABLE_TYPE:
+                            case EGL_CONFORMANT:
+                                matches = (cfg->RenderableType & requested) == requested;
+                                break;
+                            case EGL_SAMPLE_BUFFERS:
+                            case EGL_SAMPLES:
+                                matches = requested == 0;
+                                break;
+                            case EGL_NATIVE_VISUAL_ID:
+                                matches = cfg->NativeVisualId == requested;
+                                break;
+                            default:
+                                break;
+                            }
+
+                            if (!matches) {
+                                break;
+                            }
+                        }
+                    }
+
+                    if (matches) {
+                        matchedConfigs.push_back(config);
+                    }
+                }
+
+                *numConfig = static_cast<EGLint>(matchedConfigs.size());
                 if (!configs || configSize <= 0) {
                     return true;
                 }
 
-                const SizeT copyCount = std::min(static_cast<SizeT>(configSize), displayObject->Configs.size());
+                const SizeT copyCount = std::min(static_cast<SizeT>(configSize), matchedConfigs.size());
                 for (SizeT i = 0; i < copyCount; ++i) {
-                    configs[i] = displayObject->Configs[i];
+                    configs[i] = matchedConfigs[i];
                 }
                 return true;
             }
@@ -367,9 +476,38 @@ namespace MobileGL {
                 }
 
                 switch (attribute) {
+                case EGL_BUFFER_SIZE:
+                    *value = cfg->RedSize + cfg->GreenSize + cfg->BlueSize + cfg->AlphaSize;
+                    return true;
+                case EGL_ALPHA_MASK_SIZE:
+                    *value = 0;
+                    return true;
+                case EGL_BIND_TO_TEXTURE_RGB:
+                case EGL_BIND_TO_TEXTURE_RGBA:
+                    *value = EGL_FALSE;
+                    return true;
+                case EGL_COLOR_BUFFER_TYPE:
+                    *value = EGL_RGB_BUFFER;
+                    return true;
+                case EGL_CONFIG_CAVEAT:
+                    *value = EGL_NONE;
+                    return true;
                 case EGL_CONFIG_ID:
                     *value = cfg->ConfigId;
                     return true;
+                case EGL_LEVEL:
+                    *value = 0;
+                    return true;
+                case EGL_LUMINANCE_SIZE:
+                    *value = 0;
+                    return true;
+                case EGL_MAX_PBUFFER_WIDTH:
+                case EGL_MAX_PBUFFER_HEIGHT:
+                    *value = DEFAULT_MAX_PBUFFER_SIZE;
+                    return true;
+                case EGL_MAX_PBUFFER_PIXELS:
+                    *value = DEFAULT_MAX_PBUFFER_SIZE * DEFAULT_MAX_PBUFFER_SIZE;
+                    return true;
                 case EGL_RED_SIZE:
                     *value = cfg->RedSize;
                     return true;
@@ -401,9 +539,27 @@ namespace MobileGL {
                 case EGL_MAX_SWAP_INTERVAL:
                     *value = cfg->MaxSwapInterval;
                     return true;
+                case EGL_NATIVE_RENDERABLE:
+                    *value = EGL_TRUE;
+                    return true;
                 case EGL_NATIVE_VISUAL_ID:
                     *value = cfg->NativeVisualId;
                     return true;
+                case EGL_NATIVE_VISUAL_TYPE:
+                    *value = cfg->NativeVisualId;
+                    return true;
+                case EGL_SAMPLE_BUFFERS:
+                case EGL_SAMPLES:
+                    *value = 0;
+                    return true;
+                case EGL_TRANSPARENT_TYPE:
+                    *value = EGL_NONE;
+                    return true;
+                case EGL_TRANSPARENT_RED_VALUE:
+                case EGL_TRANSPARENT_GREEN_VALUE:
+                case EGL_TRANSPARENT_BLUE_VALUE:
+                    *value = 0;
+                    return true;
                 default:
                     const_cast<EGLContext*>(this)->SetError(EGL_BAD_ATTRIBUTE);
                     return false;

MobileGL/MG_State/EGLState/Core.h

@@ -210,12 +210,10 @@ namespace MobileGL {
                     }
                 }
 
-                static Optional<EGLint> ParseAttribValue(const EGLint* attribList, EGLint attrib);
-                static Optional<EGLAttrib> ParseAttribValue(const EGLAttrib* attribList, EGLint attrib);
                 static std::thread::id CurrentThreadKey();
 
                 EGLDisplayHandle GetOrCreateDisplay(Uint64 nativeDisplayKey, EGLenum platform);
-                EGLConfigHandle CreateDefaultConfig(EGLDisplayHandle display);
+                EGLConfigHandle CreateDefaultConfig(EGLDisplayHandle display, EGLint configId, EGLint stencilSize);
 
                 DisplayObject* TryGetDisplay(EGLDisplayHandle display);
                 const DisplayObject* TryGetDisplay(EGLDisplayHandle display) const;

MobileGL/MG_State/GLState/BufferState/BufferObject.cpp

@@ -18,23 +18,47 @@ namespace MobileGL::MG_State::GLState {
     }
 
     void BufferObject::Resize(SizeT size) {
+        ReleaseMemory();
         m_size = size;
         m_dataPtr->reserve(std::bit_ceil(size)); // power-of-2 reserve
         m_dataPtr->resize(size);
+        m_isImmutableStorage = false;
+        m_storageFlags = 0;
         m_change.Bits |= BufferChangeBits::DirtyBit;
         m_change.Bits |= BufferChangeBits::PreferReallocationBit;
+        ++m_changeSerial;
+    }
+
+    void BufferObject::AllocateImmutableStorage(SizeT size, const void* data, GLbitfield storageFlags) {
+        ReleaseMemory();
+        m_size = size;
+        m_dataPtr->reserve(std::bit_ceil(size));
+        m_dataPtr->resize(size);
+        if (data) {
+            Memcpy(m_dataPtr->data(), data, size);
+        } else if (size > 0) {
+            Memset(m_dataPtr->data(), 0, size);
+        }
+        m_isImmutableStorage = true;
+        m_storageFlags = storageFlags;
+        m_change.DirtyRanges.clear();
+        m_change.DirtyRanges.Add({0, size});
+        m_change.Bits = BufferChangeBits::DirtyBit | BufferChangeBits::PreferReallocationBit;
+        ++m_changeSerial;
     }
 
     void BufferObject::UploadData(DataPtr data, SizeT atOffset) {
         MOBILEGL_ASSERT(atOffset + data.size <= m_size,
                         "UploadData out of bounds: atOffset (%zu) + data.size (%zu) > m_size (%zu)", atOffset,
                         data.size, m_size);
-        MOBILEGL_ASSERT(!m_isMapped, "Cannot upload data while buffer is mapped.");
+        MOBILEGL_ASSERT(!m_isMapped || (m_mappingAccess & BufferMappingAccessBit::Persistent),
+                        "Cannot upload data while buffer is non-persistently mapped.");
         Memcpy(m_dataPtr->data() + atOffset, data.data, data.size);
         m_change.DirtyRanges.Add({atOffset, atOffset + data.size});
         m_change.Bits |= BufferChangeBits::DirtyBit;
         m_change.Bits |= BufferChangeBits::ForbidInvalidationBit;
         m_change.Bits |= BufferChangeBits::ForbidUnsynchronizationBit;
+        ++m_changeSerial;
         // This function may be called by `glBufferData`, but we still set the forbid bits above,
         // because when `PreferReallocationBit` is set, those bits are ignored anyway.
         // The bits can fit the `glBufferSubData` semantics
@@ -50,10 +74,13 @@ namespace MobileGL::MG_State::GLState {
 
         if (m_mappingAccess & BufferMappingAccessBit::Write) {                // if we wrote to the buffer
             if (!(m_mappingAccess & BufferMappingAccessBit::FlushExplicit)) { // if we didn't flush explicitly
-                Memcpy(m_dataPtr->data() + m_mappedRange.start, m_stagingData.data(),
+                if (!(m_mappingAccess & BufferMappingAccessBit::Persistent)) {
-                       m_mappedRange.end - m_mappedRange.start);
+                    Memcpy(m_dataPtr->data() + m_mappedRange.start, m_stagingData.data(),
+                           m_mappedRange.end - m_mappedRange.start);
+                }
                 m_change.DirtyRanges.Add({m_mappedRange.start, m_mappedRange.end});
                 m_change.Bits |= BufferChangeBits::DirtyBit;
+                ++m_changeSerial;
             }
 
             m_stagingData.clear();
@@ -77,13 +104,29 @@ namespace MobileGL::MG_State::GLState {
         MOBILEGL_ASSERT(end <= m_mappedRange.end, "Flush range out of bounds: mappedRange.end (%zu) < end (%zu)",
                         m_mappedRange.end, end);
 
-        Memcpy(m_dataPtr->data() + start, m_stagingData.data() + offset, length);
+        if (!(m_mappingAccess & BufferMappingAccessBit::Persistent)) {
+            Memcpy(m_dataPtr->data() + start, m_stagingData.data() + offset, length);
+        }
         m_change.DirtyRanges.Add({start, end});
         m_change.Bits |= BufferChangeBits::DirtyBit;
+        ++m_changeSerial;
+    }
+
+    void BufferObject::MarkPersistentMappedRangeDirty() {
+        if (!m_isMapped) return;
+        if (!(m_mappingAccess & BufferMappingAccessBit::Persistent)) return;
+        if (!(m_mappingAccess & BufferMappingAccessBit::Write)) return;
+        if (m_mappingAccess & BufferMappingAccessBit::FlushExplicit) return;
+        if (m_mappedRange.start >= m_mappedRange.end) return;
+
+        m_change.DirtyRanges.Add(m_mappedRange);
+        m_change.Bits |= BufferChangeBits::DirtyBit;
+        ++m_changeSerial;
     }
 
     void BufferObject::UploadSubData(DataPtr data, SizeT atOffset) {
-        MOBILEGL_ASSERT(!m_isMapped, "Cannot upload sub data while buffer is mapped.");
+        MOBILEGL_ASSERT(!m_isMapped || (m_mappingAccess & BufferMappingAccessBit::Persistent),
+                        "Cannot upload sub data while buffer is non-persistently mapped.");
         MOBILEGL_ASSERT(atOffset + data.size <= m_size,
                         "UploadSubData out of bounds: atOffset (%zu) + data.size (%zu) > m_size (%zu)", atOffset,
                         data.size, m_size);
@@ -93,11 +136,14 @@ namespace MobileGL::MG_State::GLState {
         m_change.Bits |= BufferChangeBits::DirtyBit;
         m_change.Bits |= BufferChangeBits::ForbidInvalidationBit;
         m_change.Bits |= BufferChangeBits::ForbidUnsynchronizationBit;
+        ++m_changeSerial;
     }
 
     void BufferObject::CopyDataFrom(const SharedPtr<BufferObject>& src, SizeT srcOffset, SizeT dstOffset, SizeT size) {
-        MOBILEGL_ASSERT(!m_isMapped, "Cannot copy data while buffer is mapped.");
+        MOBILEGL_ASSERT(!m_isMapped || (m_mappingAccess & BufferMappingAccessBit::Persistent),
-        MOBILEGL_ASSERT(!src->IsMapped(), "Cannot copy data from a buffer that is mapped.");
+                        "Cannot copy data while destination buffer is non-persistently mapped.");
+        MOBILEGL_ASSERT(!src->IsMapped() || (src->GetMappingAccess() & BufferMappingAccessBit::Persistent),
+                        "Cannot copy data from a buffer that is non-persistently mapped.");
         MOBILEGL_ASSERT(srcOffset + size <= src->GetSize(),
                         "Source buffer copy out of bounds: srcOffset (%zu) + size (%zu) > src->GetSize() (%zu)",
                         srcOffset, size, src->GetSize());
@@ -109,6 +155,7 @@ namespace MobileGL::MG_State::GLState {
         Memcpy(m_dataPtr->data() + dstOffset, srcData, size);
         m_change.DirtyRanges.Add({dstOffset, dstOffset + size});
         m_change.Bits |= BufferChangeBits::DirtyBit;
+        ++m_changeSerial;
     }
 
     void* BufferObject::AcquireMemory(Bool markMapped, Bool read, Bool write) {
@@ -143,6 +190,19 @@ namespace MobileGL::MG_State::GLState {
         m_mappingAccess = access;
         m_mappedRange = range;
 
+        m_change.Bits |=
+            !(access & BufferMappingAccessBit::InvalidateBuffer || access & BufferMappingAccessBit::InvalidateRange)
+                ? BufferChangeBits::ForbidInvalidationBit
+                : BufferChangeBits::None;
+        m_change.Bits |= !(access & BufferMappingAccessBit::Unsynchronized)
+                             ? BufferChangeBits::ForbidUnsynchronizationBit
+                             : BufferChangeBits::None;
+
+        if (access & BufferMappingAccessBit::Persistent) {
+            m_ownsStagingData = false;
+            return m_dataPtr->data() + range.start;
+        }
+
         if (access & BufferMappingAccessBit::Write) {
             m_stagingData.resize(range.end - range.start);
             m_ownsStagingData = true;
@@ -156,14 +216,6 @@ namespace MobileGL::MG_State::GLState {
             m_ownsStagingData = false;
             return m_dataPtr->data() + range.start;
         }
-
-        m_change.Bits |=
-            !(access & BufferMappingAccessBit::InvalidateBuffer || access & BufferMappingAccessBit::InvalidateRange)
-                ? BufferChangeBits::ForbidInvalidationBit
-                : BufferChangeBits::None;
-        m_change.Bits |= !(access & BufferMappingAccessBit::Unsynchronized)
-                             ? BufferChangeBits::ForbidUnsynchronizationBit
-                             : BufferChangeBits::None;
     }
 
     const SharedPtr<Data>& BufferObject::GetDataReadOnly() const {
@@ -179,6 +231,10 @@ namespace MobileGL::MG_State::GLState {
         return m_size;
     }
 
+    Bool BufferObject::IsImmutableStorage() const {
+        return m_isImmutableStorage;
+    }
+
     BufferUsage BufferObject::GetUsage() const {
         return m_usage;
     }
@@ -191,6 +247,10 @@ namespace MobileGL::MG_State::GLState {
         return m_change.Bits;
     }
 
+    Uint64 BufferObject::GetChangeSerial() const {
+        return m_changeSerial;
+    }
+
     Bool BufferObject::IsMapped() const {
         return m_isMapped;
     }
@@ -199,10 +259,25 @@ namespace MobileGL::MG_State::GLState {
         return m_isMapped ? m_mappedRange : Range1D{0, 0};
     }
 
+    void* BufferObject::GetMappedPointer() const {
+        if (!m_isMapped) return nullptr;
+        if (m_mappingAccess & BufferMappingAccessBit::Persistent) {
+            return const_cast<Uint8*>(m_dataPtr->data()) + m_mappedRange.start;
+        }
+        if (m_ownsStagingData) {
+            return const_cast<Uint8*>(m_stagingData.data());
+        }
+        return const_cast<Uint8*>(m_dataPtr->data()) + m_mappedRange.start;
+    }
+
     Flags<BufferMappingAccessBit> BufferObject::GetMappingAccess() const {
         return m_isMapped ? m_mappingAccess : BufferMappingAccessBit::Null;
     }
 
+    GLbitfield BufferObject::GetStorageFlags() const {
+        return m_storageFlags;
+    }
+
     Uint BufferObject::GetExternalIndex() const {
         return m_externalIndex;
     }

MobileGL/MG_State/GLState/BufferState/BufferObject.h

@@ -25,6 +25,7 @@ namespace MobileGL {
         AtomicCounter,
         DispatchIndirect,
         DrawIndirect,
+        Parameter,
         ShaderStorage,
         BufferTargetCount,
         Unknown = -1
@@ -80,25 +81,31 @@ namespace MobileGL {
             BufferObject(Uint externalIndex);
 
             void Resize(SizeT size);
+            void AllocateImmutableStorage(SizeT size, const void* data, GLbitfield storageFlags);
             void UploadData(DataPtr data, SizeT atOffset);
             void SetUsage(BufferUsage usage);
             void* AcquireMemory(Bool markMapped, Bool read, Bool write);
             void* AcquireMemoryRange(Range1D range, Flags<BufferMappingAccessBit> access);
             void ReleaseMemory();
             void FlushMemoryRange(SizeT offset, SizeT length);
+            void MarkPersistentMappedRangeDirty();
             void UploadSubData(DataPtr data, SizeT atOffset);
             void CopyDataFrom(const SharedPtr<BufferObject>& src, SizeT srcOffset, SizeT dstOffset, SizeT size);
             void ClearDirty();
 
             Bool IsMapped() const;
+            Bool IsImmutableStorage() const;
             SizeT GetSize() const;
             BufferUsage GetUsage() const;
             Range1D GetMappedRange() const;
+            void* GetMappedPointer() const;
             const SharedPtr<Data>& GetDataReadOnly() const;
             Flags<BufferMappingAccessBit> GetMappingAccess() const;
+            GLbitfield GetStorageFlags() const;
             Uint GetExternalIndex() const;
             const VecRange1D& GetDirtyRanges() const;
             Flags<BufferChangeBits> GetChangeBits() const;
+            Uint64 GetChangeSerial() const;
 
         private:
             const Uint m_externalIndex = 0;
@@ -107,7 +114,10 @@ namespace MobileGL {
             SharedPtr<Data> m_dataPtr;
             Bool m_isMapped;
             Flags<BufferMappingAccessBit> m_mappingAccess;
+            Bool m_isImmutableStorage = false;
+            GLbitfield m_storageFlags = 0;
             BufferChange m_change;
+            Uint64 m_changeSerial = 0;
             Range1D m_mappedRange;
             Vector<Uint8> m_stagingData;
             Bool m_ownsStagingData;

MobileGL/MG_State/GLState/BufferState/BufferState.h

@@ -16,7 +16,7 @@ namespace MobileGL::MG_State::GLState {
         ToArray(BufferTarget::Vertex, BufferTarget::Uniform, BufferTarget::CopyRead, BufferTarget::CopyWrite,
                 BufferTarget::PixelPack, BufferTarget::PixelUnpack, BufferTarget::Query, BufferTarget::Texture,
                 BufferTarget::TransformFeedback, BufferTarget::AtomicCounter, BufferTarget::DispatchIndirect,
-                BufferTarget::DrawIndirect, BufferTarget::ShaderStorage);
+                BufferTarget::DrawIndirect, BufferTarget::Parameter, BufferTarget::ShaderStorage);
     constexpr const auto BufferBindPointTargets = ToArray(BufferTarget::Uniform, BufferTarget::TransformFeedback,
                                                           BufferTarget::AtomicCounter, BufferTarget::ShaderStorage);
 

MobileGL/MG_State/GLState/Core.cpp

@@ -140,6 +140,48 @@ namespace MobileGL::MG_State {
             return m_vertexArrayState.GetBoundVertexArray();
         }
 
+        void GLContext::SetCurrentVertexAttributeFloat(Uint index, const Array<Float, 4>& value) {
+            MOBILEGL_ASSERT(index < m_currentVertexAttributes.size(),
+                            "SetCurrentVertexAttributeFloat: index %u is out of range", index);
+
+            auto& current = m_currentVertexAttributes[index];
+            current.floatValue = value;
+            for (SizeT component = 0; component < value.size(); ++component) {
+                current.intValue[component] = static_cast<Int32>(value[component]);
+                current.uintValue[component] = static_cast<Uint32>(value[component]);
+            }
+        }
+
+        void GLContext::SetCurrentVertexAttributeInt(Uint index, const Array<Int32, 4>& value) {
+            MOBILEGL_ASSERT(index < m_currentVertexAttributes.size(),
+                            "SetCurrentVertexAttributeInt: index %u is out of range", index);
+
+            auto& current = m_currentVertexAttributes[index];
+            current.intValue = value;
+            for (SizeT component = 0; component < value.size(); ++component) {
+                current.floatValue[component] = static_cast<Float>(value[component]);
+                current.uintValue[component] = static_cast<Uint32>(value[component]);
+            }
+        }
+
+        void GLContext::SetCurrentVertexAttributeUint(Uint index, const Array<Uint32, 4>& value) {
+            MOBILEGL_ASSERT(index < m_currentVertexAttributes.size(),
+                            "SetCurrentVertexAttributeUint: index %u is out of range", index);
+
+            auto& current = m_currentVertexAttributes[index];
+            current.uintValue = value;
+            for (SizeT component = 0; component < value.size(); ++component) {
+                current.floatValue[component] = static_cast<Float>(value[component]);
+                current.intValue[component] = static_cast<Int32>(value[component]);
+            }
+        }
+
+        const CurrentVertexAttributeValue& GLContext::GetCurrentVertexAttribute(Uint index) const {
+            MOBILEGL_ASSERT(index < m_currentVertexAttributes.size(),
+                            "GetCurrentVertexAttribute: index %u is out of range", index);
+            return m_currentVertexAttributes[index];
+        }
+
         // Texture
         void GLContext::GenTextureNames(Uint number, Vector<Uint>& textures) {
             m_textureState.GenerateNames(number, textures);
@@ -161,6 +203,14 @@ namespace MobileGL::MG_State {
             return m_textureState.GetUnitObject(unit);
         }
 
+        ImageTextureBinding& GLContext::GetImageTextureBinding(Int unit) {
+            return m_textureState.GetImageTextureBinding(unit);
+        }
+
+        const ImageTextureBinding& GLContext::GetImageTextureBinding(Int unit) const {
+            return m_textureState.GetImageTextureBinding(unit);
+        }
+
         Bool GLContext::ValidateTextureName(Uint index) const {
             return m_textureState.ValidateName(index);
         }
@@ -271,6 +321,22 @@ namespace MobileGL::MG_State {
             m_renderState.GetBlendFuncIndexed(index, srcRGB, dstRGB, srcAlpha, dstAlpha);
         }
 
+        void GLContext::SetBlendEquation(BlendEquation color, BlendEquation alpha) {
+            m_renderState.SetBlendEquation(color, alpha);
+        }
+
+        void GLContext::GetBlendEquation(BlendEquation& color, BlendEquation& alpha) const {
+            m_renderState.GetBlendEquation(color, alpha);
+        }
+
+        void GLContext::SetBlendEquationIndexed(Uint index, BlendEquation color, BlendEquation alpha) {
+            m_renderState.SetBlendEquationIndexed(index, color, alpha);
+        }
+
+        void GLContext::GetBlendEquationIndexed(Uint index, BlendEquation& color, BlendEquation& alpha) const {
+            m_renderState.GetBlendEquationIndexed(index, color, alpha);
+        }
+
         void GLContext::SetDepthFunc(DepthTestFunc func) {
             m_renderState.SetDepthFunc(func);
         }
@@ -339,6 +405,22 @@ namespace MobileGL::MG_State {
             return m_renderState.GetCullFaceMode();
         }
 
+        void GLContext::SetFrontFaceMode(FrontFaceMode mode) {
+            m_renderState.SetFrontFaceMode(mode);
+        }
+
+        FrontFaceMode GLContext::GetFrontFaceMode() const {
+            return m_renderState.GetFrontFaceMode();
+        }
+
+        void GLContext::SetProvokingVertexMode(ProvokingVertexMode mode) {
+            m_renderState.SetProvokingVertexMode(mode);
+        }
+
+        ProvokingVertexMode GLContext::GetProvokingVertexMode() const {
+            return m_renderState.GetProvokingVertexMode();
+        }
+
         void GLContext::SetScissorBox(IntVec4 box) {
             m_renderState.SetScissorBox(box);
         }

MobileGL/MG_State/GLState/Core.h

@@ -25,6 +25,12 @@ namespace MobileGL {
         void Init();
 
         namespace GLState {
+            struct CurrentVertexAttributeValue {
+                Array<Float, 4> floatValue{0.f, 0.f, 0.f, 1.f};
+                Array<Int32, 4> intValue{0, 0, 0, 1};
+                Array<Uint32, 4> uintValue{0u, 0u, 0u, 1u};
+            };
+
             class GLContext {
             public:
                 GLContext() = default;
@@ -61,6 +67,10 @@ namespace MobileGL {
                 Bool ValidateVertexArrayName(Uint index) const;
                 Bool ValidateVertexArrayObject(Uint index) const;
                 const SharedPtr<VertexArrayObject>& GetBoundVertexArray();
+                void SetCurrentVertexAttributeFloat(Uint index, const Array<Float, 4>& value);
+                void SetCurrentVertexAttributeInt(Uint index, const Array<Int32, 4>& value);
+                void SetCurrentVertexAttributeUint(Uint index, const Array<Uint32, 4>& value);
+                const CurrentVertexAttributeValue& GetCurrentVertexAttribute(Uint index) const;
 
                 // Texture
                 void GenTextureNames(Uint number, Vector<Uint>& textures);
@@ -68,6 +78,8 @@ namespace MobileGL {
                 const SharedPtr<ITextureObject>& CreateTextureObject(Uint index, TextureTarget target);
                 void MarkTextureObjectForDeletion(Uint index);
                 TextureUnit& GetTextureUnitObject(Int unit);
+                ImageTextureBinding& GetImageTextureBinding(Int unit);
+                const ImageTextureBinding& GetImageTextureBinding(Int unit) const;
                 Bool ValidateTextureName(Uint index) const;
                 Bool ValidateTextureObject(Uint index) const;
                 Int GetActiveTextureUnit() const;
@@ -101,6 +113,10 @@ namespace MobileGL {
                                          BlendFactor dstAlpha);
                 void GetBlendFuncIndexed(Uint index, BlendFactor& srcRGB, BlendFactor& dstRGB, BlendFactor& srcAlpha,
                                          BlendFactor& dstAlpha) const;
+                void SetBlendEquation(BlendEquation color, BlendEquation alpha);
+                void GetBlendEquation(BlendEquation& color, BlendEquation& alpha) const;
+                void SetBlendEquationIndexed(Uint index, BlendEquation color, BlendEquation alpha);
+                void GetBlendEquationIndexed(Uint index, BlendEquation& color, BlendEquation& alpha) const;
                 void SetDepthFunc(DepthTestFunc func);
                 DepthTestFunc GetDepthFunc() const;
                 void SetDepthMask(Bool flag);
@@ -118,6 +134,10 @@ namespace MobileGL {
                 PixelStoreParameters GetPixelStoreParameters(Bool isUnpack) const;
                 void SetCullFaceMode(CullFaceMode mode);
                 CullFaceMode GetCullFaceMode() const;
+                void SetFrontFaceMode(FrontFaceMode mode);
+                FrontFaceMode GetFrontFaceMode() const;
+                void SetProvokingVertexMode(ProvokingVertexMode mode);
+                ProvokingVertexMode GetProvokingVertexMode() const;
                 void SetScissorBox(IntVec4 box);      // x, y, width, height
                 const IntVec4& GetScissorBox() const; // x, y, width, height
 
@@ -152,6 +172,7 @@ namespace MobileGL {
                 ErrorState m_errorState;
                 BufferState m_bufferState;
                 VertexArrayState m_vertexArrayState;
+                Array<CurrentVertexAttributeValue, VertexArrayObject::MAX_VERTEX_ATTRIBS> m_currentVertexAttributes{};
                 TextureState m_textureState;
                 ProgramState m_programState;
                 RenderState m_renderState;

MobileGL/MG_State/GLState/ProgramState/ProgramObject.cpp

@@ -10,6 +10,7 @@
 #include <MG_Util/Converters/GLToStr/GLEnumConverter.h>
 #include <MG_Util/ShaderTranspiler/Types.h>
 #include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
+#include <MG_Util/ShaderTranspiler/ShaderSourceProcessor.h>
 #include <MG_Util/Converters/MGToGL/ProgramEnumConverter.h>
 #include <MG_Util/Converters/SPIRVCrossToGL/SpvcTypeConverter.h>
 
@@ -18,6 +19,46 @@ layout(location = 0) out vec4 FragColor;
 void main() {}
 )";
 
+namespace {
+    static int GetVertexInputLocationSpan(GLenum glType) {
+        switch (glType) {
+        case GL_FLOAT_MAT2:
+        case GL_FLOAT_MAT2x3:
+        case GL_FLOAT_MAT2x4:
+            return 2;
+        case GL_FLOAT_MAT3:
+        case GL_FLOAT_MAT3x2:
+        case GL_FLOAT_MAT3x4:
+            return 3;
+        case GL_FLOAT_MAT4:
+        case GL_FLOAT_MAT4x2:
+        case GL_FLOAT_MAT4x3:
+            return 4;
+        default:
+            return 1;
+        }
+    }
+
+    static GLenum GetVertexInputLocationType(GLenum glType) {
+        switch (glType) {
+        case GL_FLOAT_MAT2:
+        case GL_FLOAT_MAT3x2:
+        case GL_FLOAT_MAT4x2:
+            return GL_FLOAT_VEC2;
+        case GL_FLOAT_MAT3:
+        case GL_FLOAT_MAT2x3:
+        case GL_FLOAT_MAT4x3:
+            return GL_FLOAT_VEC3;
+        case GL_FLOAT_MAT4:
+        case GL_FLOAT_MAT2x4:
+        case GL_FLOAT_MAT3x4:
+            return GL_FLOAT_VEC4;
+        default:
+            return glType;
+        }
+    }
+}
+
 namespace MobileGL::MG_State::GLState {
     bool ProgramObject::ShaderIsAttached(const SharedPtr<ShaderObject>& shader) {
         MGLOG_D("ProgramObject %u: ShaderIsAttached check for shader %p", m_externalIndex, shader.get());
@@ -93,6 +134,7 @@ namespace MobileGL::MG_State::GLState {
 
     void ProgramObject::Link(Bool addDefaultFSIfMissingForRenderingPipelineProgram) {
         MGLOG_D("ProgramObject %u: Link start, shaders to link: %zu", m_externalIndex, m_shaders.size());
+        ++m_backendStateVersion;
         // Remove detached shaders first
         for (const auto& detachedShader : m_detachedShaders) {
             RemoveShader(detachedShader);
@@ -257,6 +299,27 @@ namespace MobileGL::MG_State::GLState {
             }
         }
 
+        for (int i = 0; i < m_activeUniformCount; i++) {
+            auto& uniform = m_program->getUniform(i);
+            const auto locationIt = m_uniformLocations.find(uniform.name);
+            if (locationIt == m_uniformLocations.end()) {
+                continue;
+            }
+
+            const Uint location = locationIt->second;
+            if (location >= m_uniformSamplerOrImageUnitIndex.size() || uniform.getType() == nullptr ||
+                !uniform.getType()->isOpaque() || (!uniform.getType()->isTexture() && !uniform.getType()->isImage())) {
+                continue;
+            }
+
+            const int binding = uniform.getBinding();
+            if (binding >= 0 && binding != static_cast<int>(glslang::TQualifier::layoutBindingEnd)) {
+                m_uniformSamplerOrImageUnitIndex[location] = binding;
+                MGLOG_D("ProgramObject %u: Reflection - opaque uniform '%s' location=%u initialUnit=%d",
+                        m_externalIndex, uniform.name.c_str(), location, binding);
+            }
+        }
+
         // ------------ attributes (vertex in) ---------------
         Int inCount = m_program->getNumPipeInputs();
         MGLOG_D("ProgramObject %u: Reflection - pipe input count (attributes) = %d", m_externalIndex, inCount);
@@ -264,7 +327,10 @@ namespace MobileGL::MG_State::GLState {
         Int maxLoc = -1;
         for (int i = 0; i < inCount; ++i) {
             Int loc = (Int)m_program->getPipeInput(i).layoutLocation();
-            if (loc >= 0 && loc != glslang::TQualifier::layoutLocationEnd) maxLoc = std::max(maxLoc, loc);
+            if (loc >= 0 && loc != glslang::TQualifier::layoutLocationEnd) {
+                const Int locationSpan = GetVertexInputLocationSpan(m_program->getPipeInput(i).glDefineType);
+                maxLoc = std::max(maxLoc, loc + locationSpan - 1);
+            }
             MGLOG_D("ProgramObject %u: Reflection - pipe input[%d] name='%s' layoutLocation=%d glType=%u",
                     m_externalIndex, i, m_program->getPipeInput(i).name.c_str(), loc,
                     m_program->getPipeInput(i).glDefineType);
@@ -294,88 +360,27 @@ namespace MobileGL::MG_State::GLState {
             m_attribInNameMaxLength = std::max(m_attribInNameMaxLength, (Int)inVar.name.length());
 
             if (location >= 0 && location < (int)m_attribs.size()) {
-                m_attribs[location] = inVar.name;
+                const Int locationSpan = GetVertexInputLocationSpan(inVar.glDefineType);
-                m_attribTypes[location] = inVar.glDefineType;
+                const GLenum locationType = GetVertexInputLocationType(inVar.glDefineType);
-                MGLOG_D("ProgramObject %u: Reflection - got attrib '%s' at explicit location %d", m_externalIndex,
+                for (Int locationOffset = 0; locationOffset < locationSpan; ++locationOffset) {
-                        inVar.name.c_str(), location);
+                    const Int expandedLocation = location + locationOffset;
-            }
+                    if (expandedLocation < 0 || expandedLocation >= static_cast<Int>(m_attribs.size())) {
-            // else if (location >= (int)m_attribs.size()) {
+                        break;
-            //     MGLOG_W("ProgramObject %u: ProgramObject::DoReflection - attrib location %d >= attribs.size()
+                    }
-            //     "
-            //             "(%zu). Ignoring.",
-            //             m_externalIndex, location, m_attribs.size());
-            //     continue;
-            // }
-            // else {
-            //     bool placed = false;
-            //     for (size_t idx = 0; idx < m_attribs.size(); ++idx) {
-            //         if (m_attribs[idx].empty()) {
-            //             m_attribs[idx] = inVar.name;
-            //             m_attribTypes[idx] = inVar.glDefineType;
-            //             placed = true;
-            //             MGLOG_D("ProgramObject %u: Reflection - placed attrib '%s' into free slot %zu",
-            //                     m_externalIndex, inVar.name.c_str(), idx);
-            //             break;
-            //         }
-            //     }
-            //     if (!placed && (int)m_attribs.size() < maxAttribs) {
-            //         m_attribs.push_back(inVar.name);
-            //         m_attribTypes.push_back(inVar.glDefineType);
-            //         placed = true;
-            //         MGLOG_D("ProgramObject %u: Reflection - pushed attrib '%s' to new slot %zu",
-            //                 m_externalIndex, inVar.name.c_str(), m_attribs.size() - 1);
-            //     }
-            //     if (!placed) {
-            //         MGLOG_W("ProgramObject %u: ProgramObject::DoReflection - cannot place attrib '%s' (no
-            //         free "
-            //                 "slot and at max capacity). Ignoring.",
-            //                 m_externalIndex, inVar.name.c_str());
-            //     }
-            // }
-        }
 
-        // Implement glBindAttribLocation semantics (explicit locations set by user)
+                    m_attribs[expandedLocation] = inVar.name;
-        // for (auto& [name, location] : m_explicitAttribLocations) {
+                    m_attribTypes[expandedLocation] = locationType;
-        //     MGLOG_D("ProgramObject %u: Reflection - explicit attrib location request: name='%s' location=%d",
+                    MGLOG_D(
-        //             m_externalIndex, name.c_str(), location);
+                        "ProgramObject %u: Reflection - got attrib '%s' at expanded location %d (baseLocation=%d glType=%u expandedType=%u)",
-        //     if (location < 0) continue;
+                        m_externalIndex,
-        //     if (location >= (int)m_attribs.size()) {
+                        inVar.name.c_str(),
-        //         if (location >= maxAttribs) {
+                        expandedLocation,
-        //             MGLOG_W("ProgramObject %u: SetExplicitVertexInLocation: requested location %d >= "
+                        location,
-        //                     "GL_MAX_VERTEX_ATTRIBS (%d). Ignored for attribute '%s'.",
+                        inVar.glDefineType,
-        //                     m_externalIndex, location, maxAttribs, name.c_str());
+                        static_cast<Uint32>(locationType));
-        //             continue;
+                }
-        //         }
+            }
-        //         m_attribs.resize(location + 1);
+        }
-        //         m_attribTypes.resize(location + 1);
-        //         MGLOG_D("ProgramObject %u: Reflection - resized attrib arrays to %zu to accommodate explicit
-        //         "
-        //                 "location %d",
-        //                 m_externalIndex, m_attribs.size(), location);
-        //     }
-        //
-        //     if (m_attribs[location] != name) {
-        //         auto it = std::find(m_attribs.begin(), m_attribs.end(), name);
-        //         if (it == m_attribs.end()) {
-        //             MGLOG_D("ProgramObject %u: Reflection - explicit attrib '%s' not found in current list, "
-        //                     "skipping swap",
-        //                     m_externalIndex, name.c_str());
-        //             continue;
-        //         }
-        //         auto idx = std::distance(m_attribs.begin(), it);
-        //         std::swap(m_attribs[location], m_attribs[idx]);
-        //         std::swap(m_attribTypes[location], m_attribTypes[idx]);
-        //         MGLOG_D("ProgramObject %u: Reflection - swapped attrib '%s' from idx %zu to explicit "
-        //                 "location %d",
-        //                 m_externalIndex, name.c_str(), idx, location);
-        //     }
-        //
-        //     for (SizeT idx = 0; idx < m_attribs.size(); ++idx) {
-        //         m_attribLocation[m_attribs[idx]] = idx;
-        //         MGLOG_D("ProgramObject %u: Reflection - attribLocation['%s'] = %zu", m_externalIndex,
-        //                 m_attribs[idx].c_str(), idx);
-        //     }
-        // }
 
         // ---------- UBO ----------
         Int uboCount = m_program->getNumUniformBlocks();
@@ -403,11 +408,16 @@ namespace MobileGL::MG_State::GLState {
         MGLOG_D("ProgramObject %u: GenerateBinary - start", m_externalIndex);
         Vector<SharedPtr<glslang::TShader>> shaders(m_shaders.size());
         Vector<GLenum> shaderTypes(m_shaders.size());
+
+        // 1. Compile shaders
         for (SizeT i = 0; i < m_shaders.size(); i++) {
-            auto shaderType = MG_Util::ConvertShaderStageToGLEnum(m_shaders[i]->GetShaderStage());
+            auto shaderStage = m_shaders[i]->GetShaderStage();
+            auto shaderType = MG_Util::ConvertShaderStageToGLEnum(shaderStage);
+            String compileSource = m_shaders[i]->GetShaderSource();
+            PreprocessShaderSource(shaderStage, compileSource);
             shaderTypes[i] = shaderType;
             ShaderAttrib attrib{.shaderType = shaderType,
-                                .sourceStr = m_shaders[i]->GetShaderSource(),
+                                .sourceStr = compileSource,
                                 .flags = 0}; // Will need patched glslang to work
             MGLOG_D("ProgramObject %u: GenerateBinary - compiling shader[%zu] type %u", m_externalIndex, i, shaderType);
             auto res = ShaderCompiler::CompileShader(attrib);
@@ -418,7 +428,7 @@ namespace MobileGL::MG_State::GLState {
                 MGLOG_E("ProgramObject %u: GenerateBinary - CompileShader return code %d, log:\n%s", m_externalIndex,
                         res.error().errc, res.error().log.c_str());
                 MGLOG_E("ProgramObject %u: GenerateBinary - last compiled shader src: \n%s", m_externalIndex,
-                        m_shaders[i]->GetShaderSource().c_str());
+                        compileSource.c_str());
             }
             MOBILEGL_ASSERT(res, "CompileShader failed during binary generation");
             shaders[i] = res.value();
@@ -426,6 +436,7 @@ namespace MobileGL::MG_State::GLState {
                     shaders[i].get());
         }
 
+        // 2. Do actual linking
         ProgramAttrib attrib{.shaders = Move(shaders),
                              .explicitVertexInLocations = m_explicitAttribLocations,
                              .explicitFragmentOutLocations = m_explicitFragDataLocation};
@@ -452,11 +463,16 @@ namespace MobileGL::MG_State::GLState {
         MGLOG_D("ProgramObject %u: GenerateBinary - generated %zu SPIR-V modules", m_externalIndex,
                 m_generatedSpirv.size());
 
+        // 3. Linked SPIR-V generated, sanitize and optimize it
         for (auto& spv : m_generatedSpirv) {
             auto success = ShaderCompiler::SanitizeAndOptimizeBinary(spv, spv);
             MOBILEGL_ASSERT(success, "SanitizeBinary failed");
         }
 
+        // 4. Do reflection (find global UBO etc.)
+        m_uniformSizesInBytes.clear();
+        m_uniformOffsets.clear();
+        m_globalUboScratch.clear();
         for (SizeT i = 0; i < m_generatedSpirv.size(); i++) {
             auto& spv = m_generatedSpirv[i];
 
@@ -464,25 +480,25 @@ namespace MobileGL::MG_State::GLState {
             MGLOG_D("ProgramObject %u: GenerateBinary - parsing SPIR-V meta data for module %zu "
                     "(shaderType=%u, wordCount=%zu)",
                     m_externalIndex, i, shaderType, spv.size());
-            SpvcSession session(spv);
+            SpvcSession session(spv, SessionUsageBit::Reflection);
             auto result = session.ParseMetaData();
             if (result < 0) {
                 MGLOG_D("ProgramObject %u: GenerateBinary - SpvcSession::ParseMetaData failed for module %zu, "
                         "err = %d%s",
                         m_externalIndex, i, result,
                         (result == SPVC_ERROR_INVALID_SPIRV ? ". Probably no global UBO?" : ""));
-                m_uniformSizesInBytes.clear();
-                m_uniformOffsets.clear();
-                m_uboScratch.clear();
                 continue;
             } else {
                 auto& meta = session.GetMetadata();
-                auto size = meta.uboSize;
+                auto size = meta.globalUboSize;
                 MGLOG_D("ProgramObject %u: GenerateBinary - SPIR-V meta: uboSize=%zu plainUniformCount=%zu "
                         "plainUniformOffsets=%zu",
-                        m_externalIndex, meta.uboSize, meta.plainUniformMemberSizesInBytes.size(),
+                        m_externalIndex, meta.globalUboSize, meta.plainUniformMemberSizesInBytes.size(),
                         meta.plainUniformOffsetsInUBO.size());
-                m_uboScratch.resize(size);
+                if (size == 0) {
+                    continue;
+                }
+                m_globalUboScratch.resize(size);
                 m_uniformOffsets.resize(m_maxUniformLocation + 1);
                 for (const auto& [name, offset] : meta.plainUniformOffsetsInUBO) {
                     if (m_uniformLocations.find(name) != m_uniformLocations.end()) {

MobileGL/MG_State/GLState/ProgramState/ProgramObject.h

@@ -63,11 +63,54 @@ namespace MobileGL::MG_State::GLState {
             const auto it = std::find(m_attribs.begin(), m_attribs.end(), name);
             return (it == m_attribs.end()) ? -1 : (Int)std::distance(m_attribs.begin(), it);
         }
+        Uint32 GetActiveAttributeLocationMask() const {
+            Uint32 mask = 0;
+            const SizeT count = std::min<SizeT>(m_attribs.size(), 32);
+            for (SizeT index = 0; index < count; ++index) {
+                if (!m_attribs[index].empty()) {
+                    mask |= (1u << index);
+                }
+            }
+            return mask;
+        }
+        Uint32 GetActiveFragmentOutputLocationMask() const {
+            if (!m_program) {
+                return 0;
+            }
+
+            Uint32 mask = 0;
+            const Int outputCount = m_program->getNumPipeOutputs();
+            for (Int index = 0; index < outputCount; ++index) {
+                const Int location = static_cast<Int>(m_program->getPipeOutput(index).layoutLocation());
+                if (location >= 0 && location < 32) {
+                    mask |= (1u << location);
+                }
+            }
+            return mask;
+        }
+        Int GetActiveFragmentOutputCount() const {
+            return m_program ? m_program->getNumPipeOutputs() : 0;
+        }
+        Int GetFragmentOutputLocation(Uint index) const {
+            MOBILEGL_ASSERT(m_program != nullptr, "ProgramObject::GetFragmentOutputLocation: program is null");
+            MOBILEGL_ASSERT(index < static_cast<Uint>(m_program->getNumPipeOutputs()),
+                            "ProgramObject::GetFragmentOutputLocation: index=%u out of range",
+                            index);
+            return static_cast<Int>(m_program->getPipeOutput(static_cast<Int>(index)).layoutLocation());
+        }
+        GLenum GetFragmentOutputType(Uint index) const {
+            MOBILEGL_ASSERT(m_program != nullptr, "ProgramObject::GetFragmentOutputType: program is null");
+            MOBILEGL_ASSERT(index < static_cast<Uint>(m_program->getNumPipeOutputs()),
+                            "ProgramObject::GetFragmentOutputType: index=%u out of range",
+                            index);
+            return m_program->getPipeOutput(static_cast<Int>(index)).glDefineType;
+        }
         GLenum GetAttribType(Uint index) const { return m_attribTypes[index]; }
         const String& GetAttribName(Uint index) const { return m_attribs[index]; }
-        void* MapUBO() { return m_uboScratch.data(); }
+        void* MapUBO() { return m_globalUboScratch.data(); }
-        const void* GetUBOData() const { return m_uboScratch.data(); }
+        const void* GetUBOData() const { return m_globalUboScratch.data(); }
-        Uint GetUBOSize() const { return static_cast<Uint>(m_uboScratch.size()); }
+        Uint GetUBOSize() const { return static_cast<Uint>(m_globalUboScratch.size()); }
+        Uint32 GetBackendStateVersion() const { return m_backendStateVersion; }
 
         void SetUniformSamplerOrImageUnitIndex(Uint location, Int unit) {
             m_uniformSamplerOrImageUnitIndex[location] = unit;
@@ -105,7 +148,13 @@ namespace MobileGL::MG_State::GLState {
         }
 
         // Set by glUniformBlockBinding
-        void SetUniformBlockBinding(Uint index, Uint binding) { m_uniformBlockBinding[index] = (Int)binding; }
+        void SetUniformBlockBinding(Uint index, Uint binding) {
+            if (index >= m_uniformBlockBinding.size() || m_uniformBlockBinding[index] == static_cast<Int>(binding)) {
+                return;
+            }
+            m_uniformBlockBinding[index] = static_cast<Int>(binding);
+            ++m_backendStateVersion;
+        }
 
         Uint GetUniformBlockBinding(Uint index) const { return m_uniformBlockBinding[index]; }
 
@@ -121,9 +170,6 @@ namespace MobileGL::MG_State::GLState {
 
         Uint GetExternalIndex() const { return m_externalIndex; }
 
-        //                const UnorderedMap<String, Uint>& GetAttribLocationMap() const { return
-        //                m_attribLocation; }
-
     private:
         void DoReflection();
         void GenerateBinary();
@@ -142,8 +188,6 @@ namespace MobileGL::MG_State::GLState {
         UnorderedMap<String, Uint> m_explicitAttribLocations;
         Vector<String> m_attribs;
         Vector<GLenum> m_attribTypes;
-        // For SpvcSession::SetVertexAttribLocation()
-        //                UnorderedMap<String, Uint> m_attribLocation;
 
         // FragData (Frag out)
         UnorderedMap<String, Uint> m_explicitFragDataLocation;
@@ -162,13 +206,15 @@ namespace MobileGL::MG_State::GLState {
         // Let's define UniformBlockIndex == the order at glslang getUniformBlock()
         // aka `i = glGetUniformBlockIndex(prog, "BlockName")` implies:
         // `prog->getUniformBlock(i) == "BlockName"`
+        // These stuff are present for GL semantics, not for backend inspection
+        // These may change after-link (because GL spec decided to have `glUniformBlockBinding`)
         UnorderedMap<String, Uint> m_uniformBlockIndexByName;
         Vector<Int> m_uniformBlockBinding;
 
         // Need to be reflected after linking of SPIR-V binary
         Vector<Uint> m_uniformOffsets;
         Vector<Uint> m_uniformSizesInBytes;
-        Vector<Uint8> m_uboScratch;
+        Vector<Uint8> m_globalUboScratch;
 
         Uint m_activeUniformCount = 0;
         Uint m_maxUniformLocation = 0;
@@ -180,5 +226,6 @@ namespace MobileGL::MG_State::GLState {
         Bool m_deleteStatus = false;
         Bool m_linkStatus = false;
         Bool m_validateStatus = true;
+        Uint32 m_backendStateVersion = 0;
     };
 } // namespace MobileGL::MG_State::GLState

MobileGL/MG_State/GLState/ProgramState/ShaderObject.cpp

@@ -24,13 +24,14 @@ namespace MobileGL::MG_State::GLState {
 
     void ShaderObject::Compile() {
         using namespace MG_Util::ShaderTranspiler;
-        MG_Util::ShaderTranspiler::PreprocessShaderSource(m_stage, m_source);
+        String compileSource = m_source;
+        MG_Util::ShaderTranspiler::PreprocessShaderSource(m_stage, compileSource);
 
         // Compile for OpenGL here, so that we can do validation and link
         // like a real OpenGL driver at linking stage
         // Will compile for other backends later.
         ShaderAttrib attrib{.shaderType = MG_Util::ConvertShaderStageToGLEnum(m_stage),
-                            .sourceStr = m_source,
+                            .sourceStr = compileSource,
                             .flags = ShaderCompileBits::CompileForOpenGL};
 
         auto result = ShaderCompiler::CompileShader(attrib);
@@ -42,7 +43,7 @@ namespace MobileGL::MG_State::GLState {
             m_infoLog = result.error().log;
             MGLOG_D("ShaderObject::Compile: Shader %d compilation failed.\nSource:\n%s\nInfoLog:\n%s\nSetting "
                     "m_compileStatus = false as a result.",
-                    m_externalIndex, m_source.c_str(), m_infoLog.c_str());
+                    m_externalIndex, compileSource.c_str(), m_infoLog.c_str());
         }
     }
 

MobileGL/MG_State/GLState/RenderState/RenderState.cpp

@@ -164,6 +164,48 @@ namespace MobileGL {
                 dstAlpha = m_parameters.BlendStates[index].DstFactorAlpha;
             }
 
+            void RenderState::SetBlendEquation(BlendEquation color, BlendEquation alpha) {
+                Bool stateChanged = false;
+                for (auto& blendState : m_parameters.BlendStates) {
+                    if (blendState.ColorEquation == color && blendState.AlphaEquation == alpha) {
+                        continue;
+                    }
+                    blendState.ColorEquation = color;
+                    blendState.AlphaEquation = alpha;
+                    stateChanged = true;
+                }
+                if (!stateChanged) return;
+                ++m_version;
+            }
+
+            void RenderState::GetBlendEquation(BlendEquation& color, BlendEquation& alpha) const {
+                color = m_parameters.BlendStates[0].ColorEquation;
+                alpha = m_parameters.BlendStates[0].AlphaEquation;
+            }
+
+            void RenderState::SetBlendEquationIndexed(Uint index, BlendEquation color, BlendEquation alpha) {
+                if (index >= MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS) {
+                    MOBILEGL_ASSERT(false, "Blend equation index out of range: %d", index);
+                    return;
+                }
+                PerBufferBlendState& blendState = m_parameters.BlendStates[index];
+                if (blendState.ColorEquation == color && blendState.AlphaEquation == alpha) {
+                    return;
+                }
+                blendState.ColorEquation = color;
+                blendState.AlphaEquation = alpha;
+                ++m_version;
+            }
+
+            void RenderState::GetBlendEquationIndexed(Uint index, BlendEquation& color, BlendEquation& alpha) const {
+                if (index >= MG_State::GLState::FramebufferObject::MAX_DRAW_BUFFERS) {
+                    MOBILEGL_ASSERT(false, "Blend equation index out of range: %d", index);
+                    return;
+                }
+                color = m_parameters.BlendStates[index].ColorEquation;
+                alpha = m_parameters.BlendStates[index].AlphaEquation;
+            }
+
             // -------------------- Depth --------------------
             void RenderState::SetDepthFunc(DepthTestFunc func) {
                 if (m_parameters.DepthFunc == func) return;
@@ -307,6 +349,28 @@ namespace MobileGL {
                 return m_parameters.CullFaceModeSetting;
             }
 
+            void RenderState::SetFrontFaceMode(FrontFaceMode mode) {
+                if (m_parameters.FrontFaceModeSetting == mode) return;
+
+                m_parameters.FrontFaceModeSetting = mode;
+                ++m_version;
+            }
+
+            FrontFaceMode RenderState::GetFrontFaceMode() const {
+                return m_parameters.FrontFaceModeSetting;
+            }
+
+            void RenderState::SetProvokingVertexMode(ProvokingVertexMode mode) {
+                if (m_parameters.ProvokingVertexModeSetting == mode) return;
+
+                m_parameters.ProvokingVertexModeSetting = mode;
+                ++m_version;
+            }
+
+            ProvokingVertexMode RenderState::GetProvokingVertexMode() const {
+                return m_parameters.ProvokingVertexModeSetting;
+            }
+
             // --------------------- Scissor ---------------------
             void RenderState::SetScissorBox(IntVec4 box) {
                 if (m_parameters.ScissorBox == box) return;

MobileGL/MG_State/GLState/RenderState/RenderState.h

@@ -31,6 +31,16 @@ namespace MobileGL {
         Unknown = -1
     };
 
+    enum class BlendEquation {
+        Add,
+        Subtract,
+        ReverseSubtract,
+        Min,
+        Max,
+        BlendEquationCount,
+        Unknown = -1
+    };
+
     enum class DepthTestFunc {
         Never,
         Less,
@@ -77,6 +87,20 @@ namespace MobileGL {
         Unknown = -1
     };
 
+    enum class FrontFaceMode {
+        CounterClockwise,
+        Clockwise,
+        FrontFaceModeCount,
+        Unknown = -1
+    };
+
+    enum class ProvokingVertexMode {
+        FirstVertex,
+        LastVertex,
+        ProvokingVertexModeCount,
+        Unknown = -1
+    };
+
     enum class CapabilityInput {
         Blend,
         ClipDistance0,
@@ -134,6 +158,8 @@ namespace MobileGL {
         BlendFactor DstFactorRGB = BlendFactor::Zero;
         BlendFactor SrcFactorAlpha = BlendFactor::One;
         BlendFactor DstFactorAlpha = BlendFactor::Zero;
+        BlendEquation ColorEquation = BlendEquation::Add;
+        BlendEquation AlphaEquation = BlendEquation::Add;
     };
 
     struct RenderStateParameters {
@@ -159,6 +185,8 @@ namespace MobileGL {
         // Cull Face
         Bool CullFaceEnabled = false;
         CullFaceMode CullFaceModeSetting = CullFaceMode::Back;
+        FrontFaceMode FrontFaceModeSetting = FrontFaceMode::CounterClockwise;
+        ProvokingVertexMode ProvokingVertexModeSetting = ProvokingVertexMode::LastVertex;
 
         // Scissor
         Bool ScissorTestEnabled = false;
@@ -192,6 +220,10 @@ namespace MobileGL {
                                          BlendFactor dstAlpha);
                 void GetBlendFuncIndexed(Uint index, BlendFactor& srcRGB, BlendFactor& dstRGB, BlendFactor& srcAlpha,
                                          BlendFactor& dstAlpha) const;
+                void SetBlendEquation(BlendEquation color, BlendEquation alpha);
+                void GetBlendEquation(BlendEquation& color, BlendEquation& alpha) const;
+                void SetBlendEquationIndexed(Uint index, BlendEquation color, BlendEquation alpha);
+                void GetBlendEquationIndexed(Uint index, BlendEquation& color, BlendEquation& alpha) const;
 
                 // Depth
                 void SetDepthFunc(DepthTestFunc func);
@@ -219,6 +251,10 @@ namespace MobileGL {
                 // Cull Face
                 void SetCullFaceMode(CullFaceMode mode);
                 CullFaceMode GetCullFaceMode() const;
+                void SetFrontFaceMode(FrontFaceMode mode);
+                FrontFaceMode GetFrontFaceMode() const;
+                void SetProvokingVertexMode(ProvokingVertexMode mode);
+                ProvokingVertexMode GetProvokingVertexMode() const;
 
                 // Scissor
                 void SetScissorBox(IntVec4 box);      // x, y, width, height

MobileGL/MG_State/GLState/TextureState/TextureState.cpp

@@ -97,6 +97,11 @@ namespace MobileGL::MG_State::GLState {
                         }
                     }
                 }
+                for (auto& imageBinding : m_imageTextureBindings) {
+                    if (imageBinding.Texture == it->second) {
+                        imageBinding.Bind(nullptr, 0, GL_FALSE, 0, GL_READ_ONLY, GL_RGBA8);
+                    }
+                }
                 m_textureObjects.erase(it);
             }
             m_indexGenerator.Delete(index);
@@ -109,6 +114,18 @@ namespace MobileGL::MG_State::GLState {
         return m_textureUnits[unit];
     }
 
+    ImageTextureBinding& TextureState::GetImageTextureBinding(Int unit) {
+        MOBILEGL_ASSERT(unit >= 0 && unit < MAX_TEXTURE_IMAGE_UNITS, "Image unit is out of range: %d > %d", unit,
+                        MAX_TEXTURE_IMAGE_UNITS - 1);
+        return m_imageTextureBindings[unit];
+    }
+
+    const ImageTextureBinding& TextureState::GetImageTextureBinding(Int unit) const {
+        MOBILEGL_ASSERT(unit >= 0 && unit < MAX_TEXTURE_IMAGE_UNITS, "Image unit is out of range: %d > %d", unit,
+                        MAX_TEXTURE_IMAGE_UNITS - 1);
+        return m_imageTextureBindings[unit];
+    }
+
     Int TextureState::GetActiveTextureUnit() const {
         return m_activeTextureUnit;
     }

MobileGL/MG_State/GLState/TextureState/TextureState.h

@@ -14,6 +14,27 @@
 #include "TextureUnit.h"
 
 namespace MobileGL::MG_State::GLState {
+    struct ImageTextureBinding {
+        SharedPtr<ITextureObject> Texture;
+        GLint Level = 0;
+        GLboolean Layered = GL_FALSE;
+        GLint Layer = 0;
+        GLenum Access = GL_READ_ONLY;
+        GLenum Format = GL_RGBA8;
+        Uint16 Version = 0;
+
+        void Bind(SharedPtr<ITextureObject> texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                  GLenum format) {
+            Texture = Move(texture);
+            Level = level;
+            Layered = layered;
+            Layer = layer;
+            Access = access;
+            Format = format;
+            ++Version;
+        }
+    };
+
     class TextureState {
     public:
         static constexpr int MAX_TEXTURE_IMAGE_UNITS = 32;
@@ -23,6 +44,8 @@ namespace MobileGL::MG_State::GLState {
         const SharedPtr<ITextureObject>& CreateTextureObject(Uint index, TextureTarget target);
         const SharedPtr<ITextureObject>& GetTextureObject(Uint index);
         TextureUnit& GetUnitObject(Int unit);
+        ImageTextureBinding& GetImageTextureBinding(Int unit);
+        const ImageTextureBinding& GetImageTextureBinding(Int unit) const;
         Int GetActiveTextureUnit() const;
         void SetActiveTextureUnit(Int unit);
         void MarkTextureObjectForDeletion(Uint index);
@@ -32,6 +55,7 @@ namespace MobileGL::MG_State::GLState {
     private:
         Int m_activeTextureUnit = 0;
         Array<TextureUnit, MAX_TEXTURE_IMAGE_UNITS> m_textureUnits;
+        Array<ImageTextureBinding, MAX_TEXTURE_IMAGE_UNITS> m_imageTextureBindings;
         IndexGenerator<Uint> m_indexGenerator;
         UnorderedMap<GLuint, SharedPtr<ITextureObject>> m_textureObjects;
     };

MobileGL/MG_State/GLState/VertexArrayState/VertexArrayObject.cpp

@@ -85,6 +85,11 @@ namespace MobileGL::MG_State::GLState {
         return m_indexBufferBindingSlot;
     }
 
+    const BindingSlot<BufferObject>& VertexArrayObject::GetIndexBufferBindingSlot() const {
+        return m_indexBufferBindingSlot;
+    }
+
+
     const VertexAttribute& VertexArrayObject::GetAttribute(Uint index) const {
         static VertexAttribute emptyAttr;
         if (index >= MAX_VERTEX_ATTRIBS) return emptyAttr;

MobileGL/MG_State/GLState/VertexArrayState/VertexArrayObject.h

@@ -48,6 +48,7 @@ namespace MobileGL {
                 void BindAttributeBuffer(Uint index, const SharedPtr<BufferObject>& buffer);
 
                 BindingSlot<BufferObject>& GetIndexBufferBindingSlot();
+                const BindingSlot<BufferObject>& GetIndexBufferBindingSlot() const;
 
                 const VertexAttribute& GetAttribute(Uint index) const;
                 const Array<VertexAttribute, MAX_VERTEX_ATTRIBS>& GetAllAttributes() const;

MobileGL/MG_Test/Buffer/BufferTest.cpp

@@ -25,7 +25,8 @@ protected:
 };
 
 TEST_F(BufferTest, Binding) {
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(3);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(3, bufferNames);
     auto& arraySlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Vertex);
     auto& indexSlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Uniform);
 
@@ -49,7 +50,8 @@ TEST_F(BufferTest, PingPong) {
     auto& readSlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::CopyRead);
     auto& writeSlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::CopyWrite);
     {
-        auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+        Vector<Uint> bufferNames;
+        MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
         auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
 
         writeSlot.Bind(bufObj);
@@ -80,7 +82,9 @@ TEST_F(BufferTest, PingPong) {
 
 TEST_F(BufferTest, GenerateManyNames_NoPrematureCreation) {
     const SizeT largeCount = 100000; // generate tons of buffer names
-    auto names = MobileGL::MG_State::pGLContext->GenBufferNames(largeCount);
+
+    Vector<Uint> names;
+    MobileGL::MG_State::pGLContext->GenBufferNames(largeCount, names);
 
     std::vector<SizeT> indices = {0, 600, 5000, 32768, 99999}; // only create a few buffer objects
     for (SizeT idx : indices) {
@@ -104,7 +108,8 @@ TEST_F(BufferTest, GenerateManyNames_NoPrematureCreation) {
 
 TEST_F(BufferTest, AcquireMemory) {
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Uniform);
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
     Vector<Int> initData{10, 20, 30, 40, 50};
@@ -132,7 +137,8 @@ TEST_F(BufferTest, AcquireMemory) {
 
 TEST_F(BufferTest, AcquireMemoryRangeWithoutExplicit) {
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Uniform);
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
     Vector<Int> initData{10, 20, 30, 40, 50};
@@ -160,7 +166,8 @@ TEST_F(BufferTest, AcquireMemoryRangeWithoutExplicit) {
 
 TEST_F(BufferTest, AcquireMemoryRangeWithExplicit) {
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Uniform);
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
 
@@ -208,7 +215,8 @@ TEST_F(BufferTest, CopyBufferSubData) {
     auto& srcSlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::CopyRead);
     auto& dstSlot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::CopyWrite);
 
-    auto srcNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> srcNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, srcNames);
     auto srcObj = MobileGL::MG_State::pGLContext->CreateBufferObject(srcNames[0]);
     srcSlot.Bind(srcObj);
 
@@ -218,7 +226,8 @@ TEST_F(BufferTest, CopyBufferSubData) {
     DataPtr srcPtr{.data = srcData.data(), .size = srcSize};
     srcObj->UploadData(srcPtr, 0);
 
-    auto dstNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> dstNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, dstNames);
     auto dstObj = MobileGL::MG_State::pGLContext->CreateBufferObject(dstNames[0]);
     dstSlot.Bind(dstObj);
 
@@ -249,7 +258,8 @@ TEST_F(BufferTest, CopyBufferSubData) {
 
 TEST_F(BufferTest, WriteWhileMapped) {
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::ShaderStorage);
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
 
@@ -280,7 +290,8 @@ TEST_F(BufferTest, WriteWhileMapped) {
 
 TEST_F(BufferTest, PartialUpdate) {
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Vertex);
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
 
@@ -308,7 +319,8 @@ TEST_F(BufferTest, PartialUpdate) {
 }
 
 TEST_F(BufferTest, DeleteBufferObject) {
-    auto bufferNames = MobileGL::MG_State::pGLContext->GenBufferNames(1);
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
     auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Vertex);
     auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
     slot.Bind(bufObj);
@@ -318,11 +330,132 @@ TEST_F(BufferTest, DeleteBufferObject) {
     ASSERT_FALSE(MobileGL::MG_State::pGLContext->GetBufferObject(bufferNames[0]));
 }
 
+TEST_F(BufferTest, ParameterBufferBindingAndQuery) {
+    Vector<Uint> bufferNames;
+    MobileGL::MG_State::pGLContext->GenBufferNames(1, bufferNames);
+    auto bufObj = MobileGL::MG_State::pGLContext->CreateBufferObject(bufferNames[0]);
+
+    auto& slot = MobileGL::MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::Parameter);
+    slot.Bind(bufObj);
+
+    GLint binding = 0;
+    MobileGL::MG_Impl::GLImpl::GetIntegerv(GL_PARAMETER_BUFFER_BINDING_ARB, &binding);
+    EXPECT_EQ(binding, static_cast<GLint>(bufferNames[0]));
+
+    slot.Bind(nullptr);
+    MobileGL::MG_Impl::GLImpl::GetIntegerv(GL_PARAMETER_BUFFER_BINDING_ARB, &binding);
+    EXPECT_EQ(binding, 0);
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, BindBufferBaseZeroUnbindsBindingPoint) {
+    GLuint buffer = 0;
+    MobileGL::MG_Impl::GLImpl::GenBuffers(1, &buffer);
+    MobileGL::MG_Impl::GLImpl::BindBuffer(GL_SHADER_STORAGE_BUFFER, buffer);
+    MobileGL::MG_Impl::GLImpl::BufferData(GL_SHADER_STORAGE_BUFFER, 16, nullptr, GL_DYNAMIC_DRAW);
+
+    MobileGL::MG_Impl::GLImpl::BindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, buffer);
+    auto& point = MobileGL::MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, 2);
+    ASSERT_NE(point.GetBoundObject(), nullptr);
+    EXPECT_EQ(point.GetBoundObject()->GetExternalIndex(), buffer);
+
+    MobileGL::MG_Impl::GLImpl::BindBufferBase(GL_SHADER_STORAGE_BUFFER, 2, 0);
+    EXPECT_EQ(point.GetBoundObject(), nullptr);
+    EXPECT_FALSE(MobileGL::MG_State::pGLContext->ValidateBufferObject(0));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, BindBufferRangeZeroUnbindsBindingPoint) {
+    GLuint buffer = 0;
+    MobileGL::MG_Impl::GLImpl::GenBuffers(1, &buffer);
+    MobileGL::MG_Impl::GLImpl::BindBuffer(GL_SHADER_STORAGE_BUFFER, buffer);
+    MobileGL::MG_Impl::GLImpl::BufferData(GL_SHADER_STORAGE_BUFFER, 16, nullptr, GL_DYNAMIC_DRAW);
+
+    MobileGL::MG_Impl::GLImpl::BindBufferRange(GL_SHADER_STORAGE_BUFFER, 3, buffer, 4, 8);
+    auto& point = MobileGL::MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::ShaderStorage, 3);
+    ASSERT_NE(point.GetBoundObject(), nullptr);
+    EXPECT_EQ(point.GetRange().start, 4);
+    EXPECT_EQ(point.GetRange().end, 12);
+
+    MobileGL::MG_Impl::GLImpl::BindBufferRange(GL_SHADER_STORAGE_BUFFER, 3, 0, 0, 0);
+    EXPECT_EQ(point.GetBoundObject(), nullptr);
+    EXPECT_FALSE(MobileGL::MG_State::pGLContext->ValidateBufferObject(0));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, GetInteger64vMaxShaderStorageBlockSize) {
+    GLint64 maxSsboBlockSize = 0;
+    MobileGL::MG_Impl::GLImpl::GetInteger64v(GL_MAX_SHADER_STORAGE_BLOCK_SIZE, &maxSsboBlockSize);
+
+    EXPECT_GT(maxSsboBlockSize, 0);
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, CreateBuffersCreatesObjectsImmediately) {
+    GLuint buffers[2] = {};
+    MobileGL::MG_Impl::GLImpl::CreateBuffers(2, buffers);
+
+    EXPECT_NE(buffers[0], 0u);
+    EXPECT_NE(buffers[1], 0u);
+    EXPECT_TRUE(MobileGL::MG_State::pGLContext->ValidateBufferObject(buffers[0]));
+    EXPECT_TRUE(MobileGL::MG_State::pGLContext->ValidateBufferObject(buffers[1]));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, CopyNamedBufferSubDataCopiesBetweenDSABuffers) {
+    GLuint buffers[2] = {};
+    MobileGL::MG_Impl::GLImpl::CreateBuffers(2, buffers);
+
+    Vector<Uint8> src{1, 2, 3, 4, 5, 6};
+    Vector<Uint8> dst(src.size(), 0);
+    MobileGL::MG_Impl::GLImpl::NamedBufferData(buffers[0], src.size(), src.data(), GL_STATIC_DRAW);
+    MobileGL::MG_Impl::GLImpl::NamedBufferData(buffers[1], dst.size(), dst.data(), GL_STATIC_DRAW);
+    MobileGL::MG_Impl::GLImpl::CopyNamedBufferSubData(buffers[0], buffers[1], 1, 2, 3);
+
+    Vector<Uint8> actual(dst.size());
+    auto dstObject = MobileGL::MG_State::pGLContext->GetBufferObject(buffers[1]);
+    Memcpy(actual.data(), dstObject->AcquireMemory(false, true, false), actual.size());
+    EXPECT_EQ(actual, (Vector<Uint8>{0, 0, 2, 3, 4, 0}));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, ClearNamedBufferDataZeroesStorage) {
+    GLuint buffer = 0;
+    MobileGL::MG_Impl::GLImpl::CreateBuffers(1, &buffer);
+
+    Vector<Uint8> initial(8, 0x7F);
+    MobileGL::MG_Impl::GLImpl::NamedBufferData(buffer, initial.size(), initial.data(), GL_STATIC_DRAW);
+    MobileGL::MG_Impl::GLImpl::ClearNamedBufferData(buffer, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE, nullptr);
+
+    Vector<Uint8> actual(initial.size(), 0xFF);
+    auto bufferObject = MobileGL::MG_State::pGLContext->GetBufferObject(buffer);
+    Memcpy(actual.data(), bufferObject->AcquireMemory(false, true, false), actual.size());
+    EXPECT_EQ(actual, Vector<Uint8>(initial.size(), 0));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(BufferTest, ClearNamedBufferSubDataRepeatsPattern) {
+    GLuint buffer = 0;
+    MobileGL::MG_Impl::GLImpl::CreateBuffers(1, &buffer);
+
+    Vector<Uint32> initial{0, 0, 0, 0, 0};
+    MobileGL::MG_Impl::GLImpl::NamedBufferData(buffer, initial.size() * sizeof(Uint32), initial.data(), GL_STATIC_DRAW);
+    const Uint32 pattern = 0xAABBCCDDu;
+    MobileGL::MG_Impl::GLImpl::ClearNamedBufferSubData(buffer, GL_R32UI, sizeof(Uint32), sizeof(Uint32) * 3,
+                                                       GL_RED_INTEGER, GL_UNSIGNED_INT, &pattern);
+
+    Vector<Uint32> actual(initial.size(), 0);
+    auto bufferObject = MobileGL::MG_State::pGLContext->GetBufferObject(buffer);
+    Memcpy(actual.data(), bufferObject->AcquireMemory(false, true, false), actual.size() * sizeof(Uint32));
+    EXPECT_EQ(actual, (Vector<Uint32>{0, pattern, pattern, pattern, 0}));
+    EXPECT_EQ(MobileGL::MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
 using namespace MobileGL::MG_Impl::GLImpl;
 
 class GeneralBufferTest : public ::testing::Test {
 protected:
-    void SetUp() override { MG_State::pGLContext = new MG_State::GLState::GLContext(); }
+    void SetUp() override { MG_State::pGLContext = MakeUnique<MG_State::GLState::GLContext>(); }
 
     GLuint CreateBoundBuffer(GLenum target, GLsizeiptr size, GLenum usage) {
         GLuint buffer;
@@ -465,6 +598,157 @@ TEST_F(GeneralBufferTest, General_MapFlags) {
     EXPECT_EQ(GetError(), GL_NO_ERROR);
 }
 
+TEST_F(GeneralBufferTest, General_BufferStorageQueriesImmutable) {
+    GLuint buffer = 0;
+    GenBuffers(1, &buffer);
+    BindBuffer(GL_ARRAY_BUFFER, buffer);
+
+    const GLint initial[] = {1, 2, 3, 4};
+    constexpr GLbitfield storageFlags = GL_DYNAMIC_STORAGE_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT;
+    BufferStorage(GL_ARRAY_BUFFER, sizeof(initial), initial, storageFlags);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+
+    GLint immutable = GL_FALSE;
+    GLint reportedFlags = 0;
+    GetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_IMMUTABLE_STORAGE, &immutable);
+    GetBufferParameteriv(GL_ARRAY_BUFFER, GL_BUFFER_STORAGE_FLAGS, &reportedFlags);
+    EXPECT_EQ(immutable, GL_TRUE);
+    EXPECT_EQ(reportedFlags, static_cast<GLint>(storageFlags));
+
+    const GLint update = 42;
+    BufferSubData(GL_ARRAY_BUFFER, sizeof(GLint), sizeof(update), &update);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+
+    BufferData(GL_ARRAY_BUFFER, sizeof(initial), initial, GL_DYNAMIC_DRAW);
+    EXPECT_EQ(GetError(), GL_INVALID_OPERATION);
+}
+
+TEST_F(GeneralBufferTest, General_PersistentMapRequiresStorageFlags) {
+    GLuint mutableBuffer = CreateBoundBuffer(GL_ARRAY_BUFFER, 64, GL_DYNAMIC_DRAW);
+    (void)mutableBuffer;
+    void* mapped = MapBufferRange(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+    EXPECT_EQ(mapped, nullptr);
+    EXPECT_EQ(GetError(), GL_INVALID_OPERATION);
+
+    GLuint storageBuffer = 0;
+    GenBuffers(1, &storageBuffer);
+    BindBuffer(GL_ARRAY_BUFFER, storageBuffer);
+    BufferStorage(GL_ARRAY_BUFFER, 64, nullptr, GL_MAP_WRITE_BIT);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+    mapped = MapBufferRange(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+    EXPECT_EQ(mapped, nullptr);
+    EXPECT_EQ(GetError(), GL_INVALID_OPERATION);
+
+    GLuint persistentBuffer = 0;
+    GenBuffers(1, &persistentBuffer);
+    BindBuffer(GL_ARRAY_BUFFER, persistentBuffer);
+    BufferStorage(GL_ARRAY_BUFFER, 64, nullptr, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_CLIENT_STORAGE_BIT);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+    mapped = MapBufferRange(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+    ASSERT_NE(mapped, nullptr);
+    EXPECT_TRUE(UnmapBuffer(GL_ARRAY_BUFFER));
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
+TEST_F(GeneralBufferTest, General_PersistentCoherentWriteDirtyWithoutUnmap) {
+    GLuint buffer = 0;
+    GenBuffers(1, &buffer);
+    BindBuffer(GL_ARRAY_BUFFER, buffer);
+
+    GLint initial[] = {10, 20, 30, 40};
+    BufferStorage(GL_ARRAY_BUFFER, sizeof(initial), initial,
+                  GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+
+    auto bufferObject = MG_State::pGLContext->GetBufferObject(buffer);
+    ASSERT_NE(bufferObject, nullptr);
+    bufferObject->ClearDirty();
+
+    auto* mapped = static_cast<GLint*>(
+        MapBufferRange(GL_ARRAY_BUFFER, 0, sizeof(initial),
+                       GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_COHERENT_BIT));
+    ASSERT_NE(mapped, nullptr);
+    mapped[2] = 1234;
+
+    bufferObject->MarkPersistentMappedRangeDirty();
+    ASSERT_FALSE(bufferObject->GetDirtyRanges().empty());
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].start, 0);
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].end, sizeof(initial));
+
+    const auto data = bufferObject->GetDataReadOnly();
+    EXPECT_EQ(reinterpret_cast<const GLint*>(data->data())[2], 1234);
+    EXPECT_TRUE(UnmapBuffer(GL_ARRAY_BUFFER));
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
+TEST_F(GeneralBufferTest, General_PersistentExplicitFlushOnlyDirtiesFlushedRange) {
+    GLuint buffer = 0;
+    GenBuffers(1, &buffer);
+    BindBuffer(GL_ARRAY_BUFFER, buffer);
+
+    GLint initial[] = {10, 20, 30, 40};
+    BufferStorage(GL_ARRAY_BUFFER, sizeof(initial), initial, GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+
+    auto bufferObject = MG_State::pGLContext->GetBufferObject(buffer);
+    ASSERT_NE(bufferObject, nullptr);
+    bufferObject->ClearDirty();
+
+    auto* mapped = static_cast<GLint*>(
+        MapBufferRange(GL_ARRAY_BUFFER, 0, sizeof(initial),
+                       GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_FLUSH_EXPLICIT_BIT));
+    ASSERT_NE(mapped, nullptr);
+    mapped[1] = 200;
+    mapped[3] = 400;
+
+    bufferObject->MarkPersistentMappedRangeDirty();
+    EXPECT_TRUE(bufferObject->GetDirtyRanges().empty());
+
+    FlushMappedBufferRange(GL_ARRAY_BUFFER, sizeof(GLint), sizeof(GLint));
+    ASSERT_FALSE(bufferObject->GetDirtyRanges().empty());
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].start, sizeof(GLint));
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].end, sizeof(GLint) * 2);
+
+    EXPECT_TRUE(UnmapBuffer(GL_ARRAY_BUFFER));
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
+TEST_F(GeneralBufferTest, General_NamedBufferStorageMappingWrappers) {
+    GLuint buffer = 0;
+    GenBuffers(1, &buffer);
+
+    GLint initial[] = {1, 2, 3, 4};
+    NamedBufferStorage(buffer, sizeof(initial), initial,
+                       GL_DYNAMIC_STORAGE_BIT | GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+
+    GLint immutable = GL_FALSE;
+    GetNamedBufferParameteriv(buffer, GL_BUFFER_IMMUTABLE_STORAGE, &immutable);
+    EXPECT_EQ(immutable, GL_TRUE);
+
+    auto bufferObject = MG_State::pGLContext->GetBufferObject(buffer);
+    ASSERT_NE(bufferObject, nullptr);
+    bufferObject->ClearDirty();
+
+    auto* mapped = static_cast<GLint*>(
+        MapNamedBufferRange(buffer, 0, sizeof(initial),
+                            GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | GL_MAP_FLUSH_EXPLICIT_BIT));
+    ASSERT_NE(mapped, nullptr);
+    mapped[0] = 99;
+
+    void* mapPointer = nullptr;
+    GetNamedBufferPointerv(buffer, GL_BUFFER_MAP_POINTER, &mapPointer);
+    EXPECT_EQ(mapPointer, mapped);
+
+    FlushMappedNamedBufferRange(buffer, 0, sizeof(GLint));
+    ASSERT_FALSE(bufferObject->GetDirtyRanges().empty());
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].start, 0);
+    EXPECT_EQ(bufferObject->GetDirtyRanges()[0].end, sizeof(GLint));
+
+    EXPECT_TRUE(UnmapNamedBuffer(buffer));
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
 TEST_F(GeneralBufferTest, General_GeneralTest_1) {
     GLuint buffers[3];
     GenBuffers(3, buffers);

MobileGL/MG_Test/Buffer/CMakeLists.txt

@@ -8,6 +8,9 @@ add_executable(
 target_include_directories(BufferTest PRIVATE
         ${MGL_ROOT}/include
         ${MGL_ROOT}/MobileGL
+        ${MGL_ROOT}/3rdparty/xxHash
+        ${MGL_ROOT}/3rdparty/Vulkan-Headers/include
+        ${MGL_ROOT}/3rdparty/SPIRV-Reflect
 )
 
 target_link_libraries(
@@ -16,5 +19,9 @@ target_link_libraries(
         ${LINK_LIBRARIES}
 )
 
+if (MSVC)
+        target_compile_options(BufferTest PRIVATE /Zc:preprocessor)
+endif()
+
 include(GoogleTest)
 gtest_discover_tests(BufferTest)

MobileGL/MG_Test/CMakeLists.txt

@@ -35,6 +35,12 @@ add_executable(
 target_link_libraries(
   SanityTest
   GTest::gtest_main
+  MobileGL_s
+)
+
+target_include_directories(SanityTest PRIVATE
+  ${MGL_ROOT}/include
+  ${MGL_ROOT}/MobileGL
 )
 
 # message(STATUS "glslang_LIBRARIES: ${glslang_LIBRARIES}")
@@ -59,8 +65,10 @@ include(GoogleTest)
 gtest_discover_tests(SanityTest)
 
 add_subdirectory(Buffer)
+add_subdirectory(Framebuffer)
+add_subdirectory(Texture)
 add_subdirectory(VertexArray)
 add_subdirectory(Program)
 if (ENABLE_INTEGRATION_TESTS)
     add_subdirectory(Backend/DirectVulkan)
-endif()
+endif()

MobileGL/MG_Test/Framebuffer/CMakeLists.txt

@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.14)
+
+add_executable(
+        FramebufferTest
+        FramebufferTest.cpp
+)
+
+target_include_directories(FramebufferTest PRIVATE
+        ${MGL_ROOT}/include
+        ${MGL_ROOT}/MobileGL
+)
+
+target_link_libraries(
+        FramebufferTest PRIVATE
+        GTest::gtest_main
+        ${LINK_LIBRARIES}
+)
+
+include(GoogleTest)
+gtest_discover_tests(FramebufferTest)

MobileGL/MG_Test/Framebuffer/FramebufferTest.cpp

@@ -0,0 +1,333 @@
+// MobileGL - MobileGL/MG_Test/Framebuffer/FramebufferTest.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include <gtest/gtest.h>
+
+#include "Includes.h"
+#include "Init.h"
+#include <MG_Backend/BackendObjects.h>
+#include <MG_Impl/GLImpl/Buffer/GL_Buffer.h>
+#include <MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h>
+#include <MG_Impl/GLImpl/Getter/GL_Getter.h>
+#include <MG_Impl/GLImpl/Texture/GL_Texture.h>
+#include <MG_State/GLState/Core.h>
+
+using namespace MobileGL;
+
+namespace {
+    SharedPtr<MG_State::GLState::FramebufferObject> g_lastBlitReadFramebuffer;
+    SharedPtr<MG_State::GLState::FramebufferObject> g_lastBlitDrawFramebuffer;
+    Int g_blitNamedFramebufferCallCount = 0;
+    SharedPtr<MG_State::GLState::FramebufferObject> g_lastClearFramebuffer;
+    GLenum g_lastClearBuffer = GL_NONE;
+    GLint g_lastClearDrawbuffer = -1;
+    GLfloat g_lastClearDepth = -1.0f;
+    GLint g_lastClearStencil = -1;
+    FloatVec4 g_lastClearColor = {};
+    Int g_clearNamedFramebufferfvCallCount = 0;
+    Int g_clearNamedFramebufferfiCallCount = 0;
+    Int g_readPixelsCallCount = 0;
+
+    void RecordBlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                                    const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                                    GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLint, GLbitfield, GLenum) {
+        g_lastBlitReadFramebuffer = readFramebuffer;
+        g_lastBlitDrawFramebuffer = drawFramebuffer;
+        ++g_blitNamedFramebufferCallCount;
+    }
+
+    void RecordClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                       GLenum buffer, GLint drawbuffer, const GLfloat* value) {
+        g_lastClearFramebuffer = framebuffer;
+        g_lastClearBuffer = buffer;
+        g_lastClearDrawbuffer = drawbuffer;
+        if (value) {
+            if (buffer == GL_COLOR) {
+                g_lastClearColor = FloatVec4(value[0], value[1], value[2], value[3]);
+            } else if (buffer == GL_DEPTH) {
+                g_lastClearDepth = value[0];
+            }
+        }
+        ++g_clearNamedFramebufferfvCallCount;
+    }
+
+    void RecordClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                       GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil) {
+        g_lastClearFramebuffer = framebuffer;
+        g_lastClearBuffer = buffer;
+        g_lastClearDrawbuffer = drawbuffer;
+        g_lastClearDepth = depth;
+        g_lastClearStencil = stencil;
+        ++g_clearNamedFramebufferfiCallCount;
+    }
+
+    void RecordReadPixels(GLint, GLint, GLsizei, GLsizei, GLenum, GLenum, void*) {
+        ++g_readPixelsCallCount;
+    }
+} // namespace
+
+class FramebufferTest : public ::testing::Test {
+protected:
+    void SetUp() override {
+        MobileGL::Initialize();
+        g_lastBlitReadFramebuffer = nullptr;
+        g_lastBlitDrawFramebuffer = nullptr;
+        g_blitNamedFramebufferCallCount = 0;
+        g_lastClearFramebuffer = nullptr;
+        g_lastClearBuffer = GL_NONE;
+        g_lastClearDrawbuffer = -1;
+        g_lastClearDepth = -1.0f;
+        g_lastClearStencil = -1;
+        g_lastClearColor = {};
+        g_clearNamedFramebufferfvCallCount = 0;
+        g_clearNamedFramebufferfiCallCount = 0;
+        g_readPixelsCallCount = 0;
+        MG_Backend::gBackendFunctionsTable.GL.BlitNamedFramebuffer = nullptr;
+        MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfv = nullptr;
+        MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfi = nullptr;
+        MG_Backend::gBackendFunctionsTable.GL.ReadPixels = nullptr;
+    }
+};
+
+TEST_F(FramebufferTest, CreateFramebuffersCreatesObjectsImmediately) {
+    GLuint framebuffers[2] = {};
+    MG_Impl::GLImpl::CreateFramebuffers(2, framebuffers);
+
+    EXPECT_NE(framebuffers[0], 0u);
+    EXPECT_NE(framebuffers[1], 0u);
+    EXPECT_TRUE(MG_State::pGLContext->ValidateFramebufferObject(framebuffers[0]));
+    EXPECT_TRUE(MG_State::pGLContext->ValidateFramebufferObject(framebuffers[1]));
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, NamedFramebufferTextureAttachesWithoutChangingBindings) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    Vector<Uint> textureNames;
+    MG_State::pGLContext->GenTextureNames(1, textureNames);
+    MG_State::pGLContext->CreateTextureObject(textureNames[0], TextureTarget::Texture2D);
+
+    const auto originalDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto originalRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    MG_Impl::GLImpl::NamedFramebufferTexture(framebuffer, GL_COLOR_ATTACHMENT0, textureNames[0], 3);
+
+    const auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+    const auto& attachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Color0);
+    EXPECT_TRUE(attachment.IsTexture());
+    EXPECT_EQ(attachment.GetTexture()->GetExternalIndex(), textureNames[0]);
+    EXPECT_EQ(attachment.GetTextureLevel(), 3);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), originalDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), originalRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, NamedDepthFramebufferTextureStorageIsCompleteWithoutBinding) {
+    GLuint framebuffer = 0;
+    GLuint texture = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+    MG_Impl::GLImpl::CreateTextures(GL_TEXTURE_2D, 1, &texture);
+
+    const auto originalDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto originalRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    MG_Impl::GLImpl::TextureStorage2D(texture, 1, GL_DEPTH_COMPONENT24, 64, 32);
+    MG_Impl::GLImpl::NamedFramebufferTexture(framebuffer, GL_DEPTH_ATTACHMENT, texture, 0);
+
+    EXPECT_EQ(MG_Impl::GLImpl::CheckNamedFramebufferStatus(framebuffer, GL_FRAMEBUFFER), GL_FRAMEBUFFER_COMPLETE);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), originalDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), originalRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, ReadPixelsAllowsPersistentMappedPixelPackBuffer) {
+    GLuint framebuffer = 0;
+    GLuint texture = 0;
+    GLuint pixelPackBuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+    MG_Impl::GLImpl::CreateTextures(GL_TEXTURE_2D, 1, &texture);
+    MG_Impl::GLImpl::CreateBuffers(1, &pixelPackBuffer);
+
+    MG_Impl::GLImpl::TextureStorage2D(texture, 1, GL_RGBA8, 4, 4);
+    MG_Impl::GLImpl::NamedFramebufferTexture(framebuffer, GL_COLOR_ATTACHMENT0, texture, 0);
+    MG_Impl::GLImpl::BindFramebuffer(GL_READ_FRAMEBUFFER, framebuffer);
+
+    MG_Impl::GLImpl::BindBuffer(GL_PIXEL_PACK_BUFFER, pixelPackBuffer);
+    MG_Impl::GLImpl::BufferStorage(GL_PIXEL_PACK_BUFFER, 4 * 4 * 4, nullptr,
+                                   GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT);
+    ASSERT_NE(MG_Impl::GLImpl::MapBufferRange(GL_PIXEL_PACK_BUFFER, 0, 4 * 4 * 4,
+                                              GL_MAP_READ_BIT | GL_MAP_PERSISTENT_BIT),
+              nullptr);
+
+    MG_Backend::gBackendFunctionsTable.GL.ReadPixels = RecordReadPixels;
+    MG_Impl::GLImpl::ReadPixels(0, 0, 4, 4, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
+
+    EXPECT_EQ(g_readPixelsCallCount, 1);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, NamedRenderbufferStorageAndFramebufferAttachDoNotChangeBindings) {
+    GLuint framebuffer = 0;
+    GLuint renderbuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+    MG_Impl::GLImpl::CreateRenderbuffers(1, &renderbuffer);
+
+    const auto originalDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto originalRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+    const auto originalRenderbuffer =
+        MG_State::pGLContext->GetRenderbufferBindingSlot(RenderbufferTarget::Renderbuffer).GetBoundObject();
+
+    MG_Impl::GLImpl::NamedRenderbufferStorage(renderbuffer, GL_RGBA8, 64, 32);
+
+    GLint width = 0;
+    GLint height = 0;
+    GLint format = 0;
+    MG_Impl::GLImpl::GetNamedRenderbufferParameteriv(renderbuffer, GL_RENDERBUFFER_WIDTH, &width);
+    MG_Impl::GLImpl::GetNamedRenderbufferParameteriv(renderbuffer, GL_RENDERBUFFER_HEIGHT, &height);
+    MG_Impl::GLImpl::GetNamedRenderbufferParameteriv(renderbuffer, GL_RENDERBUFFER_INTERNAL_FORMAT, &format);
+
+    EXPECT_EQ(width, 64);
+    EXPECT_EQ(height, 32);
+    EXPECT_EQ(format, GL_RGBA8);
+
+    MG_Impl::GLImpl::NamedFramebufferRenderbuffer(framebuffer, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, renderbuffer);
+
+    const auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+    const auto& attachment = framebufferObject->GetAttachment(FramebufferAttachmentType::Color0);
+    EXPECT_TRUE(attachment.IsRenderbuffer());
+    EXPECT_EQ(attachment.GetRenderbuffer()->GetExternalIndex(), renderbuffer);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), originalDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), originalRead);
+    EXPECT_EQ(MG_State::pGLContext->GetRenderbufferBindingSlot(RenderbufferTarget::Renderbuffer).GetBoundObject(),
+              originalRenderbuffer);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, NamedFramebufferDrawBuffersDoNotModifyDefaultFramebuffer) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    const auto defaultDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto defaultRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    GLenum bufs[] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1};
+    MG_Impl::GLImpl::NamedFramebufferDrawBuffers(framebuffer, 2, bufs);
+    MG_Impl::GLImpl::NamedFramebufferReadBuffer(framebuffer, GL_COLOR_ATTACHMENT1);
+
+    const auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+    EXPECT_EQ(framebufferObject->GetDrawBuffers()[0], FramebufferAttachmentType::Color0);
+    EXPECT_EQ(framebufferObject->GetDrawBuffers()[1], FramebufferAttachmentType::Color1);
+    EXPECT_EQ(framebufferObject->GetReadBuffer(), FramebufferAttachmentType::Color1);
+    EXPECT_EQ(defaultDraw->GetDrawBuffers()[0], FramebufferAttachmentType::Color0);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), defaultDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), defaultRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, ClearNamedFramebufferfvUsesNamedObjectWithoutChangingBindings) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    const auto defaultDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto defaultRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    const GLfloat depth[] = {0.25f};
+    MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfv = RecordClearNamedFramebufferfv;
+    MG_Impl::GLImpl::ClearNamedFramebufferfv(framebuffer, GL_DEPTH, 0, depth);
+
+    const auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+    EXPECT_EQ(g_clearNamedFramebufferfvCallCount, 1);
+    EXPECT_EQ(g_lastClearFramebuffer, framebufferObject);
+    EXPECT_EQ(g_lastClearBuffer, GL_DEPTH);
+    EXPECT_EQ(g_lastClearDrawbuffer, 0);
+    EXPECT_EQ(g_lastClearDepth, 0.25f);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), defaultDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), defaultRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, ClearNamedFramebufferfiAllowsDefaultFramebufferZero) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    const auto defaultDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto defaultRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    MG_Backend::gBackendFunctionsTable.GL.ClearNamedFramebufferfi = RecordClearNamedFramebufferfi;
+    MG_Impl::GLImpl::ClearNamedFramebufferfi(0, GL_DEPTH_STENCIL, 0, 0.5f, 7);
+
+    EXPECT_EQ(g_clearNamedFramebufferfiCallCount, 1);
+    EXPECT_EQ(g_lastClearFramebuffer, defaultDraw);
+    EXPECT_EQ(g_lastClearBuffer, GL_DEPTH_STENCIL);
+    EXPECT_EQ(g_lastClearDrawbuffer, 0);
+    EXPECT_EQ(g_lastClearDepth, 0.5f);
+    EXPECT_EQ(g_lastClearStencil, 7);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), defaultDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), defaultRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, GetNamedFramebufferAttachmentParameterivReadsTargetObjectDirectly) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    Vector<Uint> textureNames;
+    MG_State::pGLContext->GenTextureNames(1, textureNames);
+    MG_State::pGLContext->CreateTextureObject(textureNames[0], TextureTarget::Texture2D);
+    MG_Impl::GLImpl::NamedFramebufferTexture(framebuffer, GL_COLOR_ATTACHMENT0, textureNames[0], 2);
+
+    GLint objectType = 0;
+    GLint objectName = 0;
+    GLint textureLevel = 0;
+    MG_Impl::GLImpl::GetNamedFramebufferAttachmentParameteriv(
+        framebuffer, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &objectType);
+    MG_Impl::GLImpl::GetNamedFramebufferAttachmentParameteriv(
+        framebuffer, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &objectName);
+    MG_Impl::GLImpl::GetNamedFramebufferAttachmentParameteriv(
+        framebuffer, GL_COLOR_ATTACHMENT0, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, &textureLevel);
+
+    EXPECT_EQ(objectType, GL_TEXTURE);
+    EXPECT_EQ(objectName, static_cast<GLint>(textureNames[0]));
+    EXPECT_EQ(textureLevel, 2);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}
+
+TEST_F(FramebufferTest, BlitNamedFramebufferAllowsDefaultFramebufferZero) {
+    GLuint framebuffer = 0;
+    MG_Impl::GLImpl::CreateFramebuffers(1, &framebuffer);
+
+    const auto defaultDraw =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
+    const auto defaultRead =
+        MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject();
+
+    MG_Backend::gBackendFunctionsTable.GL.BlitNamedFramebuffer = RecordBlitNamedFramebuffer;
+    MG_Impl::GLImpl::BlitNamedFramebuffer(framebuffer, 0, 0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT,
+                                          GL_NEAREST);
+
+    const auto framebufferObject = MG_State::pGLContext->GetFramebufferObject(framebuffer);
+    EXPECT_EQ(g_blitNamedFramebufferCallCount, 1);
+    EXPECT_EQ(g_lastBlitReadFramebuffer, framebufferObject);
+    EXPECT_EQ(g_lastBlitDrawFramebuffer, defaultDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject(), defaultDraw);
+    EXPECT_EQ(MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Read).GetBoundObject(), defaultRead);
+    EXPECT_EQ(MG_Impl::GLImpl::GetError(), GL_NO_ERROR);
+}

MobileGL/MG_Test/Program/ProgramTest.cpp

@@ -7,8 +7,15 @@
 // End of Source File Header
 
 #include <gtest/gtest.h>
+#include <cstring>
+#include <vector>
+
 #include "Includes.h"
 #include "Init.h"
+#include "MG_Backend/DirectVulkan/DirectVulkanResourceState.h"
+#include "MG_Backend/DirectVulkan/BackendObject_DirectVulkan.h"
+#include "MG_Backend/BackendObjects.h"
+#include "MG_Impl/GLImpl/Getter/GL_Getter.h"
 #include "MG_Impl/GLImpl/Program/GL_Program.h"
 #include "MG_State/GLState/Core.h"
 #include "MG_Util/ShaderTranspiler/ShaderCompiler.h"
@@ -113,6 +120,240 @@ TEST_F(ProgramTest, CompileFragment) {
     CompileShader(fs);
 }
 
+TEST_F(ProgramTest, CompileVoxySubgroupProbeShader) {
+    char infoLog[1024] = "";
+    const char* csSrc = R"(#version 430
+#extension GL_KHR_shader_subgroup_basic : require
+#extension GL_KHR_shader_subgroup_arithmetic : require
+layout(local_size_x=32) in;
+void main() {
+    uint a = subgroupExclusiveAdd(gl_LocalInvocationIndex);
+}
+)";
+
+    GLuint cs = CreateShader(GL_COMPUTE_SHADER);
+    ShaderSource(cs, 1, &csSrc, nullptr);
+    CompileShader(cs);
+
+    GLint compileStatus = GL_FALSE;
+    GetShaderiv(cs, GL_COMPILE_STATUS, &compileStatus);
+    GetShaderInfoLog(cs, sizeof(infoLog), nullptr, infoLog);
+    EXPECT_EQ(compileStatus, GL_TRUE) << infoLog;
+}
+
+TEST_F(ProgramTest, CompileVoxyGpuShaderInt64QuadDecode) {
+    auto previousBackend = Move(MG_Backend::pActiveBackendObject);
+    MG_Backend::pActiveBackendObject = MakeUnique<MG_Backend::DirectVulkan::BackendObject_DirectVulkan>();
+
+    char infoLog[2048] = "";
+    const char* vsSrc = R"(#version 460 core
+#extension GL_ARB_gpu_shader_int64 : enable
+
+#ifdef GL_ARB_gpu_shader_int64
+#define Quad uint64_t
+#define Eu32(data, amountBits, shift) (uint((data)>>(shift))&((1u<<(amountBits))-1))
+
+vec3 extractPos(uint64_t quad) {
+    return vec3(Eu32(quad, 5, 21), Eu32(quad, 5, 16), Eu32(quad, 5, 11));
+}
+
+uint extractStateId(uint64_t quad) {
+    return Eu32(quad, 16, 26);
+}
+
+uint extractBiomeId(uint64_t quad) {
+    return Eu32(quad, 9, 46);
+}
+#else
+#error GL_ARB_gpu_shader_int64 should select Voxy native quad decode path
+#endif
+
+layout(std430, binding = 1) readonly buffer QuadBuffer {
+    Quad quadData[];
+};
+
+layout(location = 0) flat out uvec4 interData;
+
+void main() {
+    uint64_t quad = quadData[uint(gl_VertexID) >> 2];
+    vec3 pos = extractPos(quad);
+    interData = uvec4(extractStateId(quad), extractBiomeId(quad), uint(pos.x), uint(pos.y));
+    gl_Position = vec4(pos * (1.0 / 32.0), 1.0);
+}
+)";
+
+    GLuint vs = CreateShader(GL_VERTEX_SHADER);
+    ShaderSource(vs, 1, &vsSrc, nullptr);
+    CompileShader(vs);
+
+    GLint compileStatus = GL_FALSE;
+    GetShaderiv(vs, GL_COMPILE_STATUS, &compileStatus);
+    GetShaderInfoLog(vs, sizeof(infoLog), nullptr, infoLog);
+    EXPECT_EQ(compileStatus, GL_TRUE) << infoLog;
+
+    MG_Backend::pActiveBackendObject = Move(previousBackend);
+}
+
+TEST_F(ProgramTest, ShaderSourceKeepsOriginalTextAfterCompile) {
+    const char* part0 = R"(#define HIGHP_OR_DEFAULT highp
+attribute vec4 Position;
+varying vec2 uv;
+)";
+    const char* ignored = "this segment should be ignored";
+    const char* part2 = R"(void main() {
+    uv = Position.xy;
+    gl_Position = Position;
+}
+)";
+    const GLchar* parts[] = {part0, ignored, part2};
+    const GLint lengths[] = {static_cast<GLint>(std::strlen(part0)), 0, static_cast<GLint>(std::strlen(part2))};
+    const String expectedSource = String(part0) + part2;
+
+    GLuint vs = CreateShader(GL_VERTEX_SHADER);
+    ShaderSource(vs, 3, parts, lengths);
+
+    GLint sourceLength = 0;
+    GetShaderiv(vs, GL_SHADER_SOURCE_LENGTH, &sourceLength);
+    ASSERT_EQ(sourceLength, static_cast<GLint>(expectedSource.size() + 1));
+
+    std::vector<GLchar> sourceBuffer(static_cast<size_t>(sourceLength));
+    GLsizei written = 0;
+    GetShaderSource(vs, sourceLength, &written, sourceBuffer.data());
+    EXPECT_EQ(written, static_cast<GLsizei>(expectedSource.size()));
+    EXPECT_EQ(String(sourceBuffer.data(), static_cast<size_t>(written)), expectedSource);
+
+    CompileShader(vs);
+    GLint compileStatus = GL_FALSE;
+    GetShaderiv(vs, GL_COMPILE_STATUS, &compileStatus);
+    ASSERT_EQ(compileStatus, GL_TRUE);
+
+    std::fill(sourceBuffer.begin(), sourceBuffer.end(), '\0');
+    written = 0;
+    GetShaderSource(vs, sourceLength, &written, sourceBuffer.data());
+    EXPECT_EQ(written, static_cast<GLsizei>(expectedSource.size()));
+    EXPECT_EQ(String(sourceBuffer.data(), static_cast<size_t>(written)), expectedSource);
+}
+
+TEST_F(ProgramTest, LinkProgramWithLegacyGlmarkStyleShaders) {
+    char infoLog[1024] = "";
+
+    const char* legacyVs = R"(attribute vec4 Position;
+attribute vec2 TexCoord;
+varying vec2 vTexCoord;
+
+void main() {
+    vTexCoord = TexCoord;
+    gl_Position = Position;
+}
+)";
+    const char* legacyFs = R"(varying vec2 vTexCoord;
+uniform sampler2D Texture;
+
+void main() {
+    gl_FragColor = texture2D(Texture, vTexCoord);
+}
+)";
+
+    GLuint vs = CreateShader(GL_VERTEX_SHADER);
+    ShaderSource(vs, 1, &legacyVs, NULL);
+    CompileShader(vs);
+    GLint vsStatus = GL_FALSE;
+    GetShaderiv(vs, GL_COMPILE_STATUS, &vsStatus);
+    GetShaderInfoLog(vs, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(vsStatus, GL_TRUE) << infoLog;
+
+    GLuint fs = CreateShader(GL_FRAGMENT_SHADER);
+    ShaderSource(fs, 1, &legacyFs, NULL);
+    CompileShader(fs);
+    GLint fsStatus = GL_FALSE;
+    GetShaderiv(fs, GL_COMPILE_STATUS, &fsStatus);
+    GetShaderInfoLog(fs, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(fsStatus, GL_TRUE) << infoLog;
+
+    GLuint program = CreateProgram();
+    AttachShader(program, vs);
+    AttachShader(program, fs);
+    LinkProgram(program);
+
+    GLint linkStatus = GL_FALSE;
+    GetProgramiv(program, GL_LINK_STATUS, &linkStatus);
+    GetProgramInfoLog(program, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(linkStatus, GL_TRUE) << infoLog;
+}
+
+TEST_F(ProgramTest, ImageUniformLayoutBindingInitializesImageUnit) {
+    char infoLog[1024] = "";
+    const char* csSrc = R"(#version 460 core
+layout(local_size_x = 1) in;
+layout(binding = 4, rgba8) uniform writeonly image2D colourTexOut;
+
+void main() {
+    imageStore(colourTexOut, ivec2(0), vec4(1.0));
+}
+)";
+
+    GLuint cs = CreateShader(GL_COMPUTE_SHADER);
+    ShaderSource(cs, 1, &csSrc, nullptr);
+    CompileShader(cs);
+    GLint csStatus = GL_FALSE;
+    GetShaderiv(cs, GL_COMPILE_STATUS, &csStatus);
+    GetShaderInfoLog(cs, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(csStatus, GL_TRUE) << infoLog;
+
+    GLuint program = CreateProgram();
+    AttachShader(program, cs);
+    LinkProgram(program);
+    GLint linkStatus = GL_FALSE;
+    GetProgramiv(program, GL_LINK_STATUS, &linkStatus);
+    GetProgramInfoLog(program, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(linkStatus, GL_TRUE) << infoLog;
+
+    const GLint location = GetUniformLocation(program, "colourTexOut");
+    ASSERT_GE(location, 0);
+    auto programObject = MobileGL::MG_State::pGLContext->GetProgramObject(program);
+    ASSERT_NE(programObject, nullptr);
+    EXPECT_EQ(programObject->GetUniformSamplerOrImageUnitIndex(static_cast<Uint>(location)), 4);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
+TEST_F(ProgramTest, DirectVulkanStorageBlockUsesShaderLayoutBinding) {
+    char infoLog[1024] = "";
+    const char* csSrc = R"(#version 460 core
+layout(local_size_x = 1) in;
+layout(std430, binding = 2) buffer requestQueueStruct {
+    uint value;
+} requestQueue;
+
+void main() {
+    requestQueue.value = 1u;
+}
+)";
+
+    GLuint cs = CreateShader(GL_COMPUTE_SHADER);
+    ShaderSource(cs, 1, &csSrc, nullptr);
+    CompileShader(cs);
+    GLint csStatus = GL_FALSE;
+    GetShaderiv(cs, GL_COMPILE_STATUS, &csStatus);
+    GetShaderInfoLog(cs, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(csStatus, GL_TRUE) << infoLog;
+
+    GLuint program = CreateProgram();
+    AttachShader(program, cs);
+    LinkProgram(program);
+    GLint linkStatus = GL_FALSE;
+    GetProgramiv(program, GL_LINK_STATUS, &linkStatus);
+    GetProgramInfoLog(program, sizeof(infoLog), nullptr, infoLog);
+    ASSERT_EQ(linkStatus, GL_TRUE) << infoLog;
+
+    auto programObject = MobileGL::MG_State::pGLContext->GetProgramObject(program);
+    ASSERT_NE(programObject, nullptr);
+    const GLuint blockIndex =
+        MG_Backend::DirectVulkan::GetShaderStorageBlockIndex(*programObject, "requestQueueStruct");
+    ASSERT_NE(blockIndex, GL_INVALID_INDEX);
+    EXPECT_EQ(MG_Backend::DirectVulkan::GetShaderStorageBlockBinding(*programObject, blockIndex), 2u);
+    EXPECT_EQ(GetError(), GL_NO_ERROR);
+}
+
 TEST_F(ProgramTest, CompileAndLink) {
     char infoLog[1024] = "";
 
@@ -191,7 +432,7 @@ TEST_F(ProgramTest, CompileAndLink) {
         String source;
         auto& spirvCode = shaderSpirvs[index];
 
-        MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirvCode);
+        MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirvCode, MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
 
         spvc_compiler_options options;
         spvcSession.CreateOptions(&options);
@@ -216,6 +457,63 @@ TEST_F(ProgramTest, CompileAndLink) {
     }
 }
 
+TEST_F(ProgramTest, Uniform1uiStoresUnsignedValue) {
+    char infoLog[1024] = "";
+
+    const char* simpleVs = R"(#version 460
+layout(location = 0) in vec4 Position;
+
+void main() {
+    gl_Position = Position;
+}
+)";
+
+    const char* uintFs = R"(#version 460
+uniform uint NodeQueueIndex;
+
+out vec4 fragColor;
+
+void main() {
+    fragColor = vec4(float(NodeQueueIndex & 255u));
+}
+)";
+
+    GLuint vs = CreateShader(GL_VERTEX_SHADER);
+    ShaderSource(vs, 1, &simpleVs, NULL);
+    CompileShader(vs);
+    GLint vsStatus = GL_FALSE;
+    GetShaderiv(vs, GL_COMPILE_STATUS, &vsStatus);
+    GetShaderInfoLog(vs, 1024, nullptr, infoLog);
+    ASSERT_EQ(vsStatus, GL_TRUE) << infoLog;
+
+    GLuint fs = CreateShader(GL_FRAGMENT_SHADER);
+    ShaderSource(fs, 1, &uintFs, NULL);
+    CompileShader(fs);
+    GLint fsStatus = GL_FALSE;
+    GetShaderiv(fs, GL_COMPILE_STATUS, &fsStatus);
+    GetShaderInfoLog(fs, 1024, nullptr, infoLog);
+    ASSERT_EQ(fsStatus, GL_TRUE) << infoLog;
+
+    GLuint program = CreateProgram();
+    AttachShader(program, vs);
+    AttachShader(program, fs);
+    LinkProgram(program);
+    GLint linkStatus = GL_FALSE;
+    GetProgramiv(program, GL_LINK_STATUS, &linkStatus);
+    ASSERT_EQ(linkStatus, GL_TRUE);
+
+    UseProgram(program);
+    GLint loc = GetUniformLocation(program, "NodeQueueIndex");
+    ASSERT_GE(loc, 0);
+
+    const GLuint expected = 0xF1234567u;
+    Uniform1ui(loc, expected);
+
+    GLint actual = 0;
+    GetUniformiv(program, loc, &actual);
+    EXPECT_EQ(static_cast<GLuint>(actual), expected);
+}
+
 TEST_F(ProgramTest, UniformMatrixFunctions) {
     char infoLog[1024] = "";
 
@@ -926,7 +1224,7 @@ TEST_F(ProgramTest, CompileAndLinkWithExplicitVertexIn) {
     char* pSrcVertIn = nullptr;
     const char* needle = "layout(location = 2) in vec2 UV0;";
     for (auto spirv : spirvs) {
-        MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirv);
+        MG_Util::ShaderTranspiler::SpvcSession spvcSession(spirv, MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
         spvc_compiler_options options;
         spvcSession.CreateOptions(&options);
 
@@ -987,7 +1285,7 @@ TEST_F(ProgramTest, CompileAndLinkWithExplicitFragmentOut) {
     char* pSrcfragOut = nullptr;
     const char* needle = "layout(location = 7) out vec4 fragColor;";
     // for (auto spirv: spirvs) {
-    MG_Util::ShaderTranspiler::SpvcSession spvcSession(fragSpirv);
+    MG_Util::ShaderTranspiler::SpvcSession spvcSession(fragSpirv, MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
     spvc_compiler_options options;
     spvcSession.CreateOptions(&options);
 
@@ -1063,6 +1361,7 @@ float fog_cylindrical_distance(vec3 pos) {
     return max(distXZ, distY);
 }
 
+uniform float fTime;
 
 layout(std140) uniform Globals {
     ivec3 CameraBlockPos;
@@ -1165,7 +1464,7 @@ vec4 sampleRGSS(sampler2D source, vec2 uv, vec2 pixelSize) {
 
 void main() {
     vec4 color = (UseRgss == 1 ? sampleRGSS(Sampler0, texCoord0, 1.0f / TextureSize) : sampleNearest(Sampler0, texCoord0, 1.0f / TextureSize)) * vertexColor;
-    color = mix(FogColor * vec4(1, 1, 1, color.a), color, ChunkVisibility);
+    color = mix(FogColor * vec4(1, 1, 1, color.a * fTime), color, ChunkVisibility);
 #ifdef ALPHA_CUTOUT
     if (color.a < ALPHA_CUTOUT) {
         discard;
@@ -1207,9 +1506,8 @@ TEST_F(ProgramTest, CompileShaderWithSamplerAsVarName) {
 
     auto programObject = MG_State::pGLContext->GetCurrentProgram();
     auto& spirvs = programObject->GetGeneratedSpirv();
-    auto& fragSpirv = spirvs[0]; // 0 - fragment, 1 - vertex
+    auto& fragSpirv = spirvs[programObject->GetShaderIndexByStage(ShaderStage::Fragment)];
-    char* pSrcfragOut = nullptr;
+    MG_Util::ShaderTranspiler::SpvcSession spvcSession(fragSpirv, MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
-    MG_Util::ShaderTranspiler::SpvcSession spvcSession(fragSpirv);
     spvc_compiler_options options;
     spvcSession.CreateOptions(&options);
 
@@ -1221,5 +1519,5 @@ TEST_F(ProgramTest, CompileShaderWithSamplerAsVarName) {
 
     const char* result = nullptr;
     spvcSession.Compile(&result);
-    printf("%s\n\n", result);
+    printf("decomp from fragSpirv:\n%s\n\n", result);
 }

MobileGL/MG_Test/Program/ProgramUtilTest.cpp

@@ -8,10 +8,13 @@
 
 #include <gtest/gtest.h>
 
+#include <string>
+
 #include "Includes.h"
 #include "Init.h"
 #include <MG_Util/Converters/GLToStr/GLEnumConverter.h>
 #include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
+#include <MG_Util/ShaderTranspiler/ShaderSourceProcessor.h>
 #include <MG_Util/ShaderTranspiler/Types.h>
 #include <MG_Util/ShaderTranspiler/glslang/UniformTraverser.h>
 
@@ -28,6 +31,78 @@ TEST_F(ProgramUtilTest, Sanity) {
     ASSERT_TRUE(true);
 }
 
+TEST_F(ProgramUtilTest, PreprocessLegacyVertexShaderModernizesGlmarkStyleSource) {
+    using namespace MG_Util::ShaderTranspiler;
+
+    String source = R"(#define HIGHP_OR_DEFAULT highp
+attribute vec3 position;
+varying vec2 uv;
+uniform HIGHP_OR_DEFAULT mat4 modelViewProjection;
+
+void main() {
+    uv = position.xy;
+    gl_Position = modelViewProjection * vec4(position, 1.0);
+})";
+
+    PreprocessShaderSource(ShaderStage::Vertex, source);
+
+    EXPECT_EQ(source.find("#version 460 core\n"), 0);
+    EXPECT_NE(source.find("in vec3 position;"), String::npos);
+    EXPECT_NE(source.find("out vec2 uv;"), String::npos);
+    EXPECT_EQ(source.find("attribute"), String::npos);
+    EXPECT_EQ(source.find("varying"), String::npos);
+    EXPECT_EQ(source.find("HIGHP_OR_DEFAULT"), String::npos);
+    EXPECT_EQ(source.find("#define"), String::npos);
+}
+
+TEST_F(ProgramUtilTest, PreprocessLegacyFragmentShaderModernizesGlmarkStyleSource) {
+    using namespace MG_Util::ShaderTranspiler;
+
+    String source = R"(#define MEDIUMP_OR_DEFAULT mediump
+varying vec2 uv;
+uniform sampler2D texture0;
+
+void main() {
+    MEDIUMP_OR_DEFAULT vec4 color = texture2D(texture0, uv);
+    gl_FragColor = color;
+})";
+
+    PreprocessShaderSource(ShaderStage::Fragment, source);
+
+    EXPECT_EQ(source.find("#version 460 core\n"), 0);
+    EXPECT_NE(source.find("out vec4 mg_FragColor;\n"), String::npos);
+    EXPECT_NE(source.find("in vec2 uv;"), String::npos);
+    EXPECT_NE(source.find("texture(texture0, uv)"), String::npos);
+    EXPECT_NE(source.find("mg_FragColor = color;"), String::npos);
+    EXPECT_EQ(source.find("gl_FragColor"), String::npos);
+    EXPECT_EQ(source.find("texture2D"), String::npos);
+    EXPECT_EQ(source.find("MEDIUMP_OR_DEFAULT"), String::npos);
+    EXPECT_EQ(source.find("mediump"), String::npos);
+    EXPECT_EQ(source.find("#define"), String::npos);
+}
+
+TEST_F(ProgramUtilTest, PreprocessFragmentShaderInjectsDepthRangeShim) {
+    using namespace MG_Util::ShaderTranspiler;
+
+    String source = R"(#version 460 core
+out float depth;
+
+void main() {
+    depth = gl_DepthRange.diff * 0.5 + gl_DepthRange.near;
+})";
+
+    PreprocessShaderSource(ShaderStage::Fragment, source);
+
+    EXPECT_NE(source.find("struct mg_DepthRangeParameters"), String::npos);
+    EXPECT_NE(source.find("#define gl_DepthRange mg_DepthRange"), String::npos);
+
+    ShaderAttrib attrib{.shaderType = GL_FRAGMENT_SHADER, .sourceStr = source};
+    auto res = ShaderCompiler::CompileShader(attrib);
+    if (!res) {
+        FAIL() << "errc: " << res.error().errc << "\nlog: " << res.error().log << "\nsource:\n" << source;
+    }
+}
+
 const char* vs = R"(#version 150
 
 in vec4 Position;
@@ -97,6 +172,66 @@ void main() {
     fragColor = vec4(OutColor, 1.0);
 })";
 
+const char* daily_weather_variation_vs = R"(#version 150
+
+struct DailyWeatherVariation {
+    vec2 clouds_cumulus_coverage;
+    vec2 clouds_altocumulus_coverage;
+    vec2 clouds_cirrus_coverage;
+    float clouds_cumulus_congestus_amount;
+    float clouds_stratus_amount;
+    float fogginess;
+    float aurora_amount;
+    float nlc_amount;
+    mat2x3 aurora_colors;
+};
+
+in vec4 Position;
+out DailyWeatherVariation daily_weather_variation;
+
+DailyWeatherVariation get_daily_weather_variation() {
+    DailyWeatherVariation daily_weather_variation;
+    daily_weather_variation.clouds_cumulus_coverage = vec2(1.0, 2.0);
+    daily_weather_variation.clouds_altocumulus_coverage = vec2(3.0, 4.0);
+    daily_weather_variation.clouds_cirrus_coverage = vec2(5.0, 6.0);
+    daily_weather_variation.clouds_cumulus_congestus_amount = 7.0;
+    daily_weather_variation.clouds_stratus_amount = 8.0;
+    daily_weather_variation.fogginess = 9.0;
+    daily_weather_variation.aurora_amount = 10.0;
+    daily_weather_variation.nlc_amount = 11.0;
+    daily_weather_variation.aurora_colors = mat2x3(vec3(12.0, 13.0, 14.0), vec3(15.0, 16.0, 17.0));
+    return daily_weather_variation;
+}
+
+void main() {
+    gl_Position = Position;
+    daily_weather_variation = get_daily_weather_variation();
+})";
+
+const char* daily_weather_variation_fs = R"(#version 150
+
+struct DailyWeatherVariation {
+    vec2 clouds_cumulus_coverage;
+    vec2 clouds_altocumulus_coverage;
+    vec2 clouds_cirrus_coverage;
+    float clouds_cumulus_congestus_amount;
+    float clouds_stratus_amount;
+    float fogginess;
+    float aurora_amount;
+    float nlc_amount;
+    mat2x3 aurora_colors;
+};
+
+in DailyWeatherVariation daily_weather_variation;
+out vec4 fragColor;
+
+void main() {
+    vec3 aurora = daily_weather_variation.aurora_colors[1];
+    DailyWeatherVariation variation = daily_weather_variation;
+    vec2 coverage = variation.clouds_cumulus_coverage + daily_weather_variation.clouds_altocumulus_coverage;
+    fragColor = vec4(coverage, aurora.x + variation.aurora_amount, 1.0);
+})";
+
 TEST_F(ProgramUtilTest, CompileSimpleFragmentShader) {
     using namespace MG_Util::ShaderTranspiler;
     ShaderAttrib attrib{.shaderType = GL_FRAGMENT_SHADER, .sourceStr = fs};
@@ -153,7 +288,7 @@ TEST_F(ProgramUtilTest, CompileFragmentShaderWithDiscard) {
 
     Vector<SpvcSession> sessions(spirvs.size());
     for (SizeT i = 0; i < spirvs.size(); ++i) {
-        sessions[i] = SpvcSession(spirvs[i]);
+        sessions[i] = SpvcSession(spirvs[i], SessionUsageBit::Transpile);
     }
 
     for (SizeT i = 0; i < spirvs.size(); ++i) {
@@ -278,7 +413,7 @@ TEST_F(ProgramUtilTest, DecompProgram) {
 
     Vector<SpvcSession> sessions(spirvs.size());
     for (SizeT i = 0; i < spirvs.size(); ++i) {
-        sessions[i] = SpvcSession(spirvs[i]);
+        sessions[i] = SpvcSession(spirvs[i], SessionUsageBit::Transpile);
     }
 
     for (SizeT i = 0; i < spirvs.size(); ++i) {
@@ -351,6 +486,110 @@ TEST_F(ProgramUtilTest, DecompProgram) {
     }
 }
 
+TEST_F(ProgramUtilTest, FlattenDailyWeatherVariationInterfaceInSpirvPass) {
+    using namespace MG_Util::ShaderTranspiler;
+
+    String vsSource = daily_weather_variation_vs;
+    String fsSource = daily_weather_variation_fs;
+    PreprocessShaderSource(ShaderStage::Vertex, vsSource);
+    PreprocessShaderSource(ShaderStage::Fragment, fsSource);
+
+    ShaderAttrib vsAttrib{.shaderType = GL_VERTEX_SHADER, .sourceStr = vsSource};
+    auto vsRes = ShaderCompiler::CompileShader(vsAttrib);
+    if (!vsRes) {
+        ASSERT_NE(vsRes.error().errc, 0);
+        FAIL() << "errc: " << vsRes.error().errc << "\nlog: " << vsRes.error().log;
+    }
+
+    ShaderAttrib fsAttrib{.shaderType = GL_FRAGMENT_SHADER, .sourceStr = fsSource};
+    auto fsRes = ShaderCompiler::CompileShader(fsAttrib);
+    if (!fsRes) {
+        ASSERT_NE(fsRes.error().errc, 0);
+        FAIL() << "errc: " << fsRes.error().errc << "\nlog: " << fsRes.error().log;
+    }
+
+    ProgramAttrib programAttrib{.shaders = {vsRes.value(), fsRes.value()}};
+    auto programRes = ShaderCompiler::LinkProgram(programAttrib);
+    if (!programRes) {
+        ASSERT_NE(programRes.error().errc, 0);
+        FAIL() << "errc: " << programRes.error().errc << "\nlog: " << programRes.error().log;
+    }
+
+    ProgramBinaryAttrib binaryAttrib{
+        .shaderTypes = {GL_VERTEX_SHADER, GL_FRAGMENT_SHADER},
+        .program = *programRes.value(),
+    };
+    auto binRes = ShaderCompiler::GetSpirvBinaryFromProgram(binaryAttrib);
+    ASSERT_TRUE(binRes.has_value());
+
+    Vector<Vector<uint32_t>> optimizedSpirvs;
+    optimizedSpirvs.reserve(binRes->size());
+    for (const auto& spirv : binRes.value()) {
+        Vector<uint32_t> optimized;
+        ASSERT_TRUE(ShaderCompiler::SanitizeAndOptimizeBinary(spirv, optimized));
+        optimizedSpirvs.push_back(std::move(optimized));
+    }
+
+    Vector<SpvcSession> sessions(optimizedSpirvs.size());
+    for (SizeT i = 0; i < optimizedSpirvs.size(); ++i) {
+        sessions[i] = SpvcSession(optimizedSpirvs[i], SessionUsageBit::Transpile);
+    }
+
+    auto vertexSource = ShaderCompiler::DecompileShader(sessions[0]);
+    auto fragmentSource = ShaderCompiler::DecompileShader(sessions[1]);
+    ASSERT_TRUE(vertexSource.has_value());
+    ASSERT_TRUE(fragmentSource.has_value());
+
+    EXPECT_EQ(vertexSource->find("out DailyWeatherVariation "), std::string::npos);
+    EXPECT_EQ(fragmentSource->find("in DailyWeatherVariation "), std::string::npos);
+    EXPECT_NE(vertexSource->find("daily_weather_variation_clouds_cumulus_coverage"), std::string::npos);
+    EXPECT_NE(vertexSource->find("daily_weather_variation_aurora_colors"), std::string::npos);
+    EXPECT_NE(fragmentSource->find("daily_weather_variation_clouds_altocumulus_coverage"), std::string::npos);
+    EXPECT_NE(fragmentSource->find("daily_weather_variation_aurora_colors"), std::string::npos);
+
+    const struct ExpectedInterface {
+        const char* name;
+        uint32_t location;
+    } expectedInterfaces[] = {
+        {"daily_weather_variation_clouds_cumulus_coverage", 0},
+        {"daily_weather_variation_clouds_altocumulus_coverage", 1},
+        {"daily_weather_variation_clouds_cirrus_coverage", 2},
+        {"daily_weather_variation_clouds_cumulus_congestus_amount", 3},
+        {"daily_weather_variation_clouds_stratus_amount", 4},
+        {"daily_weather_variation_fogginess", 5},
+        {"daily_weather_variation_aurora_amount", 6},
+        {"daily_weather_variation_nlc_amount", 7},
+        {"daily_weather_variation_aurora_colors", 8},
+    };
+
+    const auto vsOutputs = sessions[0].GetShaderInterface(SPVC_RESOURCE_TYPE_STAGE_OUTPUT);
+    const auto fsInputs = sessions[1].GetShaderInterface(SPVC_RESOURCE_TYPE_STAGE_INPUT);
+    ASSERT_EQ(vsOutputs.size(), std::size(expectedInterfaces));
+    ASSERT_EQ(fsInputs.size(), std::size(expectedInterfaces));
+
+    for (const auto& expected : expectedInterfaces) {
+        bool foundVertex = false;
+        for (const auto& output : vsOutputs) {
+            if (output.name == expected.name) {
+                foundVertex = true;
+                EXPECT_EQ(output.location, expected.location);
+                break;
+            }
+        }
+        EXPECT_TRUE(foundVertex) << "missing vertex output: " << expected.name;
+
+        bool foundFragment = false;
+        for (const auto& input : fsInputs) {
+            if (input.name == expected.name) {
+                foundFragment = true;
+                EXPECT_EQ(input.location, expected.location);
+                break;
+            }
+        }
+        EXPECT_TRUE(foundFragment) << "missing fragment input: " << expected.name;
+    }
+}
+
 const char* blit_vs = R"(#version 460 core
 
 in vec3 Position;
@@ -439,7 +678,7 @@ TEST_F(ProgramUtilTest, CompileAndLinkBlitProgram) {
     auto spirvs = bin_res.value();
     Vector<SpvcSession> sessions(spirvs.size());
     for (SizeT i = 0; i < spirvs.size(); ++i) {
-        sessions[i] = SpvcSession(spirvs[i]);
+        sessions[i] = SpvcSession(spirvs[i], SessionUsageBit::Transpile);
     }
 
     for (SizeT i = 0; i < spirvs.size(); ++i) {