[Perf] (MG_Backend/DirectVulkanTMP): Optimize buffer uploads with staging ring + batched copies.

.github/workflows/benchmark.yml

@@ -5,6 +5,7 @@ on:
     branches: 
       - dev
       - Feat/Backend-Direct-GLES
+      - Feat/Backend-Direct-Vulkan
 
 jobs:
   benchmark:
@@ -34,7 +35,7 @@ jobs:
       - name: Install clang-20
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev
+          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev
 
       - name: Show installed toolchain
         run: |

.github/workflows/test.yml

@@ -5,6 +5,7 @@ on:
     branches:
       - dev
       - Feat/Backend-Direct-GLES
+      - Feat/Backend-Direct-Vulkan
 
 jobs:
   test:
@@ -34,7 +35,7 @@ jobs:
       - name: Install clang-20
         run: |
           sudo apt-get update
-          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev
+          sudo apt-get install -y clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev
 
       - name: Show installed toolchain
         run: |

.gitignore

@@ -14,3 +14,4 @@ MobileGLCodeManager
 .vscode
 .clangd
 MobileGL/MG_Test/build
+/build_*

.gitmodules

@@ -13,3 +13,6 @@
 [submodule "3rdparty/tracy"]
 	path = 3rdparty/tracy
 	url = https://github.com/wolfpld/tracy.git
+[submodule "3rdparty/xxHash"]
+	path = 3rdparty/xxHash
+	url = https://github.com/Cyan4973/xxHash.git

CMakeLists.txt

@@ -108,6 +108,10 @@ set(SPIRV_CROSS_STATIC         ON  CACHE BOOL "Prefer static libs" FORCE)
 add_subdirectory(3rdparty/glslang)
 add_subdirectory(3rdparty/SPIRV-Cross)
 
+set(XXHASH_BUILD_XXHSUM OFF)
+option(BUILD_SHARED_LIBS OFF)
+add_subdirectory(3rdparty/xxHash/build/cmake xxhash_build EXCLUDE_FROM_ALL)
+
 set(TRACY_ENABLE ${MOBILEGL_ENABLE_TRACY} CACHE BOOL "Enable Tracy, this is an internal variable" FORCE)
 
 if (TRACY_ENABLE)
@@ -164,6 +168,7 @@ set(SOURCE_FILES
     MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/EliminateFloatEqualsZeroPass.cpp
 
     MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
+    MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.cpp
 
     MobileGL/MG_Util/Texture/PixelStoreProcessor.cpp
     MobileGL/MG_Util/Texture/TextureFormatProcessor.cpp
@@ -204,6 +209,15 @@ set(SOURCE_FILES
     MobileGL/MG_Backend/DirectGLES/Utils.cpp
     MobileGL/MG_Backend/DirectGLES/Managers.cpp
 
+    MobileGL/MG_Backend/DirectVulkanTMP/DirectVulkanTMP.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/TmpImpl.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/BackendObject_DirectVulkanTMP.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VulkanContext.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/Renderer/SwapchainManager.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/Renderer/PipelineManager.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/Renderer/FrameContext.cpp
+    MobileGL/MG_Backend/DirectVulkanTMP/Managers/ProgramManager.cpp
+
     MobileGL/MG_State/GLState/Core.cpp
     MobileGL/MG_State/GLState/ErrorState/Error.cpp
     MobileGL/MG_State/GLState/BufferState/BufferState.cpp
@@ -236,6 +250,7 @@ set(MOBILEGL_LINK_LIBRARIES
         spirv-cross-c
         SPIRV-Tools-opt
         SPIRV-Tools
+        xxHash::xxhash
 )
 
 set(MOBILEGL_INCLUDE_DIR
@@ -314,13 +329,24 @@ if (ANDROID)
     target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC
         android
         log
+        vulkan
     )
 endif()
 
-if (MOBILEGL_BUILD_TEST)
+if (NOT ANDROID)
-    add_subdirectory(MobileGL/MG_Test)
+    find_package(Vulkan)
-endif()
+    if (Vulkan_FOUND)
+        target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC Vulkan::Vulkan Vulkan::Headers)
+        target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC Vulkan::Vulkan Vulkan::Headers)
+        target_include_directories(${CMAKE_PROJECT_NAME} PUBLIC ${Vulkan_INCLUDE_DIR})
+        target_include_directories(${CMAKE_PROJECT_NAME}_s PUBLIC ${Vulkan_INCLUDE_DIR})
+    endif ()
 
-if (MOBILEGL_BUILD_BENCHMARK)
+    if (MOBILEGL_BUILD_TEST)
-    add_subdirectory(MobileGL/MG_Benchmark)
+        add_subdirectory(MobileGL/MG_Test)
+    endif()
+
+    if (MOBILEGL_BUILD_BENCHMARK)
+        add_subdirectory(MobileGL/MG_Benchmark)
+    endif()
 endif()

MobileGL/GlobalObjects.cpp

@@ -10,7 +10,7 @@
 
 namespace MobileGL {
     namespace MG_Config {
-        BackendType ActiveBackendType;
+        BackendType ActiveBackendType = BackendType::DirectVulkanTMP;
     } // namespace MG_Config
 
     namespace MG_Backend {

MobileGL/Includes.h

@@ -17,9 +17,11 @@
 #include <map>
 #include <array>
 #include <ctime>
+#include <mutex>
 #include <queue>
 #include <regex>
 #include <atomic>
+#include <bitset>
 #include <cctype>
 #include <chrono>
 #include <cstdio>
@@ -29,19 +31,19 @@
 #include <string>
 #include <thread>
 #include <vector>
+#include <cassert>
 #include <cstdarg>
 #include <cstring>
 #include <numeric>
 #include <expected>
 #include <iostream>
 #include <optional>
+#include <xxhash.h>
 #include <algorithm>
 #include <stdexcept>
 #include <functional>
 #include <string_view>
 #include <unordered_map>
-#include <mutex>
-#include <bitset>
 #if __cplusplus >= 202302L && MOBILEGL_LOG_ENABLE_STACKTRACE
 #include <stacktrace>
 #endif
@@ -90,13 +92,13 @@
 #endif
 
 #ifdef __ANDROID__
+#define VK_USE_PLATFORM_ANDROID_KHR
 #include <unistd.h>
 #include <pthread.h>
 #include <android/log.h>
-#include <vulkan/vulkan.h>
 #include <android/native_window.h>
-#include <vulkan/vulkan_android.h>
 #endif
+#include <vulkan/vulkan.h>
 
 #ifdef TRACY_ENABLE
 #include <tracy/Tracy.hpp>

MobileGL/MG_Backend/BackendObject.h

@@ -12,6 +12,7 @@
 namespace MobileGL {
     enum class BackendType {
         DirectGLES,
+        DirectVulkanTMP,
         BackendTypeCount,
         Unknown = -1
     };

MobileGL/MG_Backend/BackendObjects.h

@@ -10,6 +10,7 @@
 #include <Includes.h>
 #include "BackendObject.h"
 #include "DirectGLES/BackendObject_DirectGLES.h"
+#include "DirectVulkanTMP/BackendObject_DirectVulkanTMP.h"
 
 namespace MobileGL::MG_Backend {
     extern UniquePtr<BackendObject> pActiveBackendObject;

MobileGL/MG_Backend/DirectVulkanTMP/BackendObject_DirectVulkanTMP.cpp

@@ -0,0 +1,119 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/BackendObject_DirectVulkanTMP.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 "BackendObject_DirectVulkanTMP.h"
+#include "MG_Backend/BackendObject.h"
+#include "DirectVulkanTMP.h"
+#include "TmpImpl.h"
+#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP {
+    BackendObject_DirectVulkanTMP::~BackendObject_DirectVulkanTMP() = default;
+
+    void BackendObject_DirectVulkanTMP::InitWindowSurface() {
+        auto nativeWindow = reinterpret_cast<NativeWindowType>(m_windowHandle.Handle);
+        if (!DirectVulkanTMP::InitWindowSurface(nativeWindow)) {
+            MGLOG_E("Failed to initialize window surface for DirectVulkanTMP backend");
+        }
+    }
+
+    void BackendObject_DirectVulkanTMP::Initialize() {
+        m_initialized = true;
+    }
+
+    void BackendObject_DirectVulkanTMP::InitCapabilities() {
+        if (!m_initialized) {
+            MGLOG_E("Cannot initialize capabilities before backend is initialized");
+            return;
+        }
+
+        MG_Util::BackendLoader::QueryVulkanCapabilities(m_vulkanCaps,
+                                                        DirectVulkanTMP::GetVulkanState().ctx->GetPhysicalDevice());
+        UpdateDynamicBackendParameters();
+    }
+
+    const RendererInfo& BackendObject_DirectVulkanTMP::GetRendererInfo() const {
+        static RendererInfo RendererInfo = {
+            .RendererName = "Magma-TMP",          // Renderer Name
+            .BackendName = "Direct (Vulkan) TMP", // 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_DirectVulkanTMP::GetBackendAPIVersionString() const {
+        if (!m_initialized) {
+            return "<uninitialized DirectVulkanTMP backend>";
+        }
+        // Format:
+        // <GPU Name>, Vulkan <Vulkan Version>, Driver <Driver Version>
+        // TODO
+        String str = m_vulkanCaps.DeviceName + ", Vulkan " + m_vulkanCaps.VulkanAPIVersion.toString() + ", Driver " +
+                     m_vulkanCaps.DriverVersionString;
+        return str;
+    }
+
+    BackendType BackendObject_DirectVulkanTMP::GetBackendType() const {
+        return BackendType::DirectVulkanTMP;
+    }
+
+    const GlobalBackendFunctionsTable& BackendObject_DirectVulkanTMP::GetBackendFunctions() const {
+        static GlobalBackendFunctionsTable funcsTable;
+        static Bool funcsTableInitialized = false;
+        if (!funcsTableInitialized) {
+            funcsTable.Present = DirectVulkanTMP::Present;
+            funcsTable.GL.DrawArrays = DrawArrays;
+            funcsTable.GL.DrawElements = DrawElements;
+            funcsTable.GL.DrawElementsBaseVertex = DrawElementsBaseVertex;
+            funcsTable.GL.MultiDrawElements = MultiDrawElements;
+            funcsTable.GL.MultiDrawElementsBaseVertex = MultiDrawElementsBaseVertex;
+            funcsTable.GL.MultiDrawElementsIndirect = MultiDrawElementsIndirect;
+            funcsTable.GL.MultiDrawArraysIndirect = MultiDrawArraysIndirect;
+            funcsTable.GL.DrawRangeElementsBaseVertex = DrawRangeElementsBaseVertex;
+            funcsTable.GL.DrawRangeElements = DrawRangeElements;
+            funcsTable.GL.DrawElementsInstancedBaseVertexBaseInstance = DrawElementsInstancedBaseVertexBaseInstance;
+            funcsTable.GL.DrawElementsInstancedBaseVertex = DrawElementsInstancedBaseVertex;
+            funcsTable.GL.DrawElementsInstancedBaseInstance = DrawElementsInstancedBaseInstance;
+            funcsTable.GL.DrawElementsInstanced = DrawElementsInstanced;
+            funcsTable.GL.DrawArraysInstancedBaseInstance = DrawArraysInstancedBaseInstance;
+            funcsTable.GL.DrawArraysInstanced = DrawArraysInstanced;
+            funcsTable.GL.DrawElementsIndirect = DrawElementsIndirect;
+            funcsTable.GL.DrawArraysIndirect = DrawArraysIndirect;
+            funcsTable.GL.Clear = Clear;
+            funcsTable.GL.ClearBufferfi = ClearBufferfi;
+            funcsTable.GL.ClearBufferfv = ClearBufferfv;
+            funcsTable.GL.ClearBufferuiv = ClearBufferuiv;
+            funcsTable.GL.ClearBufferiv = ClearBufferiv;
+            funcsTable.GL.BlitFramebuffer = BlitFramebuffer;
+            funcsTable.GL.CopyTexImage2D = CopyTexImage2D;
+            funcsTable.GL.CopyTexSubImage2D = CopyTexSubImage2D;
+            funcsTable.GL.GenerateMipmap = GenerateMipmap;
+            funcsTable.GL.ReadPixels = ReadPixels;
+            funcsTable.GL.GetTexImage = GetTexImage;
+            funcsTableInitialized = true;
+        }
+        return funcsTable;
+    }
+
+    const DynamicBackendParameters& BackendObject_DirectVulkanTMP::GetDynamicParameters() const {
+        return m_dynamicParameters;
+    }
+
+    void BackendObject_DirectVulkanTMP::UpdateDynamicBackendParameters() {
+        m_dynamicParameters.UniformBufferOffsetAlignment = m_vulkanCaps.UniformBufferOffsetAlignment;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP

MobileGL/MG_Backend/DirectVulkanTMP/BackendObject_DirectVulkanTMP.h

@@ -0,0 +1,36 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/BackendObject_DirectVulkanTMP.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>
+#include "../BackendObject.h"
+#include <MG_Util/BackendLoaders/Vulkan/Loader.h>
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP {
+    class BackendObject_DirectVulkanTMP : public BackendObject {
+    public:
+        ~BackendObject_DirectVulkanTMP() override;
+
+        void Initialize() override;
+        void InitWindowSurface() override;
+        void InitCapabilities() override;
+
+        const RendererInfo& GetRendererInfo() const override;
+        String GetBackendAPIVersionString() const override;
+        const GlobalBackendFunctionsTable& GetBackendFunctions() const override;
+        const DynamicBackendParameters& GetDynamicParameters() const override;
+        BackendType GetBackendType() const override;
+
+    private:
+        void UpdateDynamicBackendParameters();
+
+        Bool m_initialized = false;
+        DynamicBackendParameters m_dynamicParameters;
+        MG_External::VulkanCapabilities m_vulkanCaps;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP

MobileGL/MG_Backend/DirectVulkanTMP/DirectVulkanTMP.cpp

@@ -0,0 +1,74 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/DirectVulkanTMP.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 "DirectVulkanTMP.h"
+#include "TmpImpl.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP {
+    void Clear(GLbitfield mask) {
+        MobileGL::MG_Backend::DirectVulkanTMP::TmpImpl::Clear(mask);
+    }
+
+    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices) {
+        MobileGL::MG_Backend::DirectVulkanTMP::TmpImpl::DrawElements(mode, count, type, indices);
+    }
+
+    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 DrawArrays(GLenum mode, GLint first, GLsizei count) {}
+    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex) {}
+    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount) {}
+    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 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) {}
+    void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices) {}
+    void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                     GLsizei instancecount, GLint basevertex, GLuint baseinstance) {}
+    void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                         GLsizei instancecount, GLint basevertex) {}
+    void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                           GLsizei instancecount, GLuint baseinstance) {}
+    void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount) {}
+    void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect) {}
+    void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
+                                         GLuint baseinstance) {}
+    void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount) {}
+    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 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 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) {}
+
+    Bool InitWindowSurface(NativeWindowType window) {
+        if (!window) {
+            MGLOG_E("Cannot initialize Vulkan window surface: invalid window handle");
+            return false;
+        }
+        TmpImpl::InitVulkan(window);
+        return true;
+    }
+
+    void Present() {
+        TmpImpl::Present();
+    }
+
+    const TmpImpl::VulkanState& GetVulkanState() {
+        return TmpImpl::GetVulkanState();
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP

MobileGL/MG_Backend/DirectVulkanTMP/DirectVulkanTMP.h

@@ -0,0 +1,58 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/DirectVulkanTMP.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_Backend::DirectVulkanTMP {
+    namespace TmpImpl {
+        class VulkanState;
+    } // namespace TmpImpl
+
+    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 Clear(GLbitfield mask);
+    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices);
+    void DrawArrays(GLenum mode, GLint first, GLsizei count);
+    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex);
+    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount);
+    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 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);
+    void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);
+    void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                     GLsizei instancecount, GLint basevertex, GLuint baseinstance);
+    void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                         GLsizei instancecount, GLint basevertex);
+    void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                           GLsizei instancecount, GLuint baseinstance);
+    void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount);
+    void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect);
+    void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
+                                         GLuint baseinstance);
+    void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+    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 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 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);
+    Bool InitWindowSurface(NativeWindowType window);
+    void Present();
+    const TmpImpl::VulkanState& GetVulkanState();
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP

MobileGL/MG_Backend/DirectVulkanTMP/Managers/ProgramManager.cpp

@@ -0,0 +1,447 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Managers/ProgramManager.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 "ProgramManager.h"
+
+#include "MG_Util/Debug/Log.h"
+#include "spirv-tools/libspirv.h"
+#include "spirv-tools/optimizer.hpp"
+#include "source/opt/constants.h"
+#include "source/opt/instruction.h"
+#include "source/opt/ir_builder.h"
+#include "source/opt/ir_context.h"
+#include "source/opt/module.h"
+#include "source/opt/pass.h"
+#include "source/opt/type_manager.h"
+
+#include <bit>
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    namespace {
+        using ProgramObject = MG_State::GLState::ProgramObject;
+        using ShaderObject = MG_State::GLState::ShaderObject;
+
+        struct PositionTargetInfo {
+            uint32_t variableId = 0;
+            uint32_t vectorTypeId = 0;
+            uint32_t floatTypeId = 0;
+            uint32_t vectorPtrTypeId = 0;
+            uint32_t memberIndex = 0;
+            bool isMember = false;
+        };
+
+        bool IsVec4Float32(spvtools::opt::IRContext* context, uint32_t typeId, uint32_t* outFloatTypeId) {
+            auto* vecInst = context->get_def_use_mgr()->GetDef(typeId);
+            if (!vecInst || vecInst->opcode() != spv::Op::OpTypeVector) return false;
+            if (vecInst->GetSingleWordInOperand(1) != 4) return false;
+
+            const uint32_t floatTypeId = vecInst->GetSingleWordInOperand(0);
+            auto* floatInst = context->get_def_use_mgr()->GetDef(floatTypeId);
+            if (!floatInst || floatInst->opcode() != spv::Op::OpTypeFloat) return false;
+            if (floatInst->GetSingleWordInOperand(0) != 32) return false;
+
+            if (outFloatTypeId) *outFloatTypeId = floatTypeId;
+            return true;
+        }
+
+        bool ResolveDirectPositionTarget(spvtools::opt::IRContext* context, uint32_t variableId,
+                                         PositionTargetInfo* outTarget) {
+            auto* varInst = context->get_def_use_mgr()->GetDef(variableId);
+            if (!varInst || varInst->opcode() != spv::Op::OpVariable) return false;
+            if (varInst->GetSingleWordInOperand(0) != static_cast<uint32_t>(spv::StorageClass::Output)) return false;
+
+            auto* ptrTypeInst = context->get_def_use_mgr()->GetDef(varInst->type_id());
+            if (!ptrTypeInst || ptrTypeInst->opcode() != spv::Op::OpTypePointer) return false;
+            if (ptrTypeInst->GetSingleWordInOperand(0) != static_cast<uint32_t>(spv::StorageClass::Output))
+                return false;
+
+            PositionTargetInfo target{};
+            target.variableId = variableId;
+            target.vectorTypeId = ptrTypeInst->GetSingleWordInOperand(1);
+            if (!IsVec4Float32(context, target.vectorTypeId, &target.floatTypeId)) return false;
+            target.vectorPtrTypeId = varInst->type_id();
+            target.isMember = false;
+
+            *outTarget = target;
+            return true;
+        }
+
+        uint32_t FindOutputVectorPointerTypeId(spvtools::opt::IRContext* context, uint32_t vectorTypeId) {
+            auto* vectorType = context->get_type_mgr()->GetType(vectorTypeId);
+            if (!vectorType) return 0;
+            spvtools::opt::analysis::Pointer ptrType(vectorType, spv::StorageClass::Output);
+            return context->get_type_mgr()->GetTypeInstruction(&ptrType);
+        }
+
+        bool ResolveMemberPositionTarget(spvtools::opt::IRContext* context, uint32_t structTypeId, uint32_t memberIndex,
+                                         PositionTargetInfo* outTarget) {
+            auto* structInst = context->get_def_use_mgr()->GetDef(structTypeId);
+            if (!structInst || structInst->opcode() != spv::Op::OpTypeStruct) return false;
+            if (memberIndex >= structInst->NumInOperands()) return false;
+
+            const uint32_t vectorTypeId = structInst->GetSingleWordInOperand(memberIndex);
+            uint32_t floatTypeId = 0;
+            if (!IsVec4Float32(context, vectorTypeId, &floatTypeId)) return false;
+
+            const uint32_t vectorPtrTypeId = FindOutputVectorPointerTypeId(context, vectorTypeId);
+            if (vectorPtrTypeId == 0) return false;
+
+            for (auto& inst : context->module()->types_values()) {
+                if (inst.opcode() != spv::Op::OpVariable) continue;
+                if (inst.GetSingleWordInOperand(0) != static_cast<uint32_t>(spv::StorageClass::Output)) continue;
+
+                auto* ptrTypeInst = context->get_def_use_mgr()->GetDef(inst.type_id());
+                if (!ptrTypeInst || ptrTypeInst->opcode() != spv::Op::OpTypePointer) continue;
+                if (ptrTypeInst->GetSingleWordInOperand(0) != static_cast<uint32_t>(spv::StorageClass::Output))
+                    continue;
+                if (ptrTypeInst->GetSingleWordInOperand(1) != structTypeId) continue;
+
+                PositionTargetInfo target{};
+                target.variableId = inst.result_id();
+                target.vectorTypeId = vectorTypeId;
+                target.floatTypeId = floatTypeId;
+                target.vectorPtrTypeId = vectorPtrTypeId;
+                target.memberIndex = memberIndex;
+                target.isMember = true;
+                *outTarget = target;
+                return true;
+            }
+
+            return false;
+        }
+
+        bool FindPositionTarget(spvtools::opt::IRContext* context, PositionTargetInfo* outTarget) {
+            Vector<Pair<uint32_t, uint32_t>> memberCandidates;
+            constexpr uint32_t kDecorationBuiltIn = static_cast<uint32_t>(spv::Decoration::BuiltIn);
+            constexpr uint32_t kBuiltInPosition = static_cast<uint32_t>(spv::BuiltIn::Position);
+
+            for (auto& inst : context->module()->annotations()) {
+                if (inst.opcode() == spv::Op::OpDecorate) {
+                    if (inst.NumInOperands() < 3) continue;
+                    if (inst.GetSingleWordInOperand(1) != kDecorationBuiltIn) continue;
+                    if (inst.GetSingleWordInOperand(2) != kBuiltInPosition) continue;
+                    if (ResolveDirectPositionTarget(context, inst.GetSingleWordInOperand(0), outTarget)) return true;
+                } else if (inst.opcode() == spv::Op::OpMemberDecorate) {
+                    if (inst.NumInOperands() < 4) continue;
+                    if (inst.GetSingleWordInOperand(2) != kDecorationBuiltIn) continue;
+                    if (inst.GetSingleWordInOperand(3) != kBuiltInPosition) continue;
+                    memberCandidates.emplace_back(inst.GetSingleWordInOperand(0), inst.GetSingleWordInOperand(1));
+                }
+            }
+
+            for (const auto& [structTypeId, memberIndex] : memberCandidates) {
+                if (ResolveMemberPositionTarget(context, structTypeId, memberIndex, outTarget)) return true;
+            }
+            return false;
+        }
+
+        bool InsertPositionFixup(spvtools::opt::IRContext* context, spvtools::opt::Instruction* insertBefore,
+                                 const PositionTargetInfo& target, uint32_t halfConstId, bool doYFlip, bool doZRemap) {
+            using namespace spvtools::opt;
+            InstructionBuilder builder(context, insertBefore,
+                                       IRContext::kAnalysisDefUse | IRContext::kAnalysisInstrToBlockMapping);
+
+            uint32_t positionPtrId = target.variableId;
+            if (target.isMember) {
+                const uint32_t memberIndexId = builder.GetUintConstantId(target.memberIndex);
+                if (memberIndexId == 0) return false;
+                auto* access = builder.AddAccessChain(target.vectorPtrTypeId, target.variableId, {memberIndexId});
+                if (!access) return false;
+                positionPtrId = access->result_id();
+            }
+
+            auto* position = builder.AddLoad(target.vectorTypeId, positionPtrId);
+            if (!position) return false;
+            auto* x = builder.AddCompositeExtract(target.floatTypeId, position->result_id(), {0});
+            auto* y = builder.AddCompositeExtract(target.floatTypeId, position->result_id(), {1});
+            auto* z = builder.AddCompositeExtract(target.floatTypeId, position->result_id(), {2});
+            auto* w = builder.AddCompositeExtract(target.floatTypeId, position->result_id(), {3});
+            if (!x || !y || !z || !w) return false;
+
+            if (!doYFlip && !doZRemap) return false;
+
+            uint32_t yValueId = y->result_id();
+            if (doYFlip) {
+                auto* negY = builder.AddUnaryOp(target.floatTypeId, spv::Op::OpFNegate, y->result_id());
+                if (!negY) return false;
+                yValueId = negY->result_id();
+            }
+
+            uint32_t zValueId = z->result_id();
+            if (doZRemap) {
+                auto* zPlusW = builder.AddBinaryOp(target.floatTypeId, spv::Op::OpFAdd, z->result_id(), w->result_id());
+                if (!zPlusW) return false;
+                auto* mappedZ =
+                    builder.AddBinaryOp(target.floatTypeId, spv::Op::OpFMul, zPlusW->result_id(), halfConstId);
+                if (!mappedZ) return false;
+                zValueId = mappedZ->result_id();
+            }
+
+            auto* fixedPosition = builder.AddCompositeConstruct(target.vectorTypeId,
+                                                                {x->result_id(), yValueId, zValueId, w->result_id()});
+            if (!fixedPosition) return false;
+
+            return builder.AddStore(positionPtrId, fixedPosition->result_id()) != nullptr;
+        }
+
+        class GlToVulkanPositionFixPass final : public spvtools::opt::Pass {
+        public:
+            const char* name() const override { return "gl-to-vulkan-position-fix"; }
+            explicit GlToVulkanPositionFixPass(ShaderTransformFlags transformFlags)
+                : m_transformFlags(transformFlags) {}
+
+            Status Process() override {
+                if (!m_transformFlags) return Status::SuccessWithoutChange;
+                PositionTargetInfo target{};
+                if (!FindPositionTarget(context(), &target)) return Status::SuccessWithoutChange;
+
+                auto* floatType = context()->get_type_mgr()->GetType(target.floatTypeId);
+                if (!floatType) return Status::SuccessWithoutChange;
+
+                const uint32_t halfBits = std::bit_cast<uint32_t>(0.5f);
+                const auto* halfConst = context()->get_constant_mgr()->GetConstant(floatType, {halfBits});
+                auto* halfInst = context()->get_constant_mgr()->GetDefiningInstruction(halfConst);
+                if (!halfInst) return Status::SuccessWithoutChange;
+                const uint32_t halfConstId = halfInst->result_id();
+
+                const bool doYFlip = (m_transformFlags & ShaderTransformBit::PositionYFlip);
+                const bool doZRemap = (m_transformFlags & ShaderTransformBit::PositionZRemap);
+
+                bool modified = false;
+                for (auto& entryPoint : get_module()->entry_points()) {
+                    if (entryPoint.opcode() != spv::Op::OpEntryPoint) continue;
+                    if (entryPoint.NumInOperands() < 2) continue;
+
+                    const auto model = static_cast<spv::ExecutionModel>(entryPoint.GetSingleWordInOperand(0));
+                    if (model != spv::ExecutionModel::Vertex && model != spv::ExecutionModel::TessellationEvaluation &&
+                        model != spv::ExecutionModel::Geometry) {
+                        continue;
+                    }
+
+                    auto* function = context()->GetFunction(entryPoint.GetSingleWordInOperand(1));
+                    if (!function) continue;
+
+                    for (auto& bb : *function) {
+                        for (auto instIter = bb.begin(); instIter != bb.end(); ++instIter) {
+                            auto* inst = &*instIter;
+                            const bool needsFixup =
+                                (model == spv::ExecutionModel::Geometry && inst->opcode() == spv::Op::OpEmitVertex) ||
+                                (model != spv::ExecutionModel::Geometry && inst->opcode() == spv::Op::OpReturn);
+                            if (!needsFixup) continue;
+
+                            modified |= InsertPositionFixup(context(), inst, target, halfConstId, doYFlip, doZRemap);
+                        }
+                    }
+                }
+
+                if (!modified) return Status::SuccessWithoutChange;
+                context()->InvalidateAnalysesExceptFor(spvtools::opt::IRContext::kAnalysisDefUse |
+                                                       spvtools::opt::IRContext::kAnalysisInstrToBlockMapping);
+                return Status::SuccessWithChange;
+            }
+
+        private:
+            ShaderTransformFlags m_transformFlags;
+        };
+
+        spvtools::Optimizer::PassToken CreateGlToVulkanPositionFixPass(ShaderTransformFlags transformFlags) {
+            return spvtools::Optimizer::PassToken(MakeUnique<GlToVulkanPositionFixPass>(transformFlags));
+        }
+
+        bool TransformSpirvForVulkanPositionFix(const Vector<Uint32>& input, Vector<Uint32>& output,
+                                                ShaderTransformFlags transformFlags) {
+            if (input.empty()) {
+                output.clear();
+                return true;
+            }
+
+            if (!transformFlags) {
+                output = input;
+                return true;
+            }
+
+            spvtools::Optimizer optimizer(SPV_ENV_VULKAN_1_3);
+            spvtools::OptimizerOptions options;
+            options.set_run_validator(false);
+            optimizer.RegisterPass(CreateGlToVulkanPositionFixPass(transformFlags));
+
+            const bool success = optimizer.Run(input.data(), input.size(), &output, options);
+            if (!success) {
+                MGLOG_E("Vulkan: failed to run GL->Vulkan position fix pass");
+                output = input;
+            }
+            return success;
+        }
+
+        ShaderStage PickClipFixupStage(const Vector<SharedPtr<ShaderObject>>& shaders) {
+            bool hasGeometry = false;
+            bool hasTessEval = false;
+            bool hasVertex = false;
+
+            for (const auto& shader : shaders) {
+                if (!shader) continue;
+                const auto stage = shader->GetShaderStage();
+                hasGeometry |= (stage == ShaderStage::Geometry);
+                hasTessEval |= (stage == ShaderStage::TessEval);
+                hasVertex |= (stage == ShaderStage::Vertex);
+            }
+
+            if (hasGeometry) return ShaderStage::Geometry;
+            if (hasTessEval) return ShaderStage::TessEval;
+            if (hasVertex) return ShaderStage::Vertex;
+            return ShaderStage::Unknown;
+        }
+    } // namespace
+
+    ProgramManager::~ProgramManager() {
+        for (auto& [_, stages] : m_cache) {
+            DestroyStages(stages);
+        }
+        m_cache.clear();
+    }
+
+    ProgramManager::HashType ProgramManager::ComputeSourceSpvHash(MG_State::GLState::ProgramObject* program) const {
+        if (!program) return 0;
+        XXH64_state_t* state = XXH64_createState();
+        XXH64_reset(state, 0xC0FFEEu);
+        auto& spirvs = program->GetGeneratedSpirv();
+        for (const auto& spv : spirvs) {
+            if (spv.empty()) continue;
+            XXH64_update(state, spv.data(), spv.size() * sizeof(Uint));
+        }
+        HashType hash = XXH64_digest(state);
+        XXH64_freeState(state);
+        return hash;
+    }
+
+    ProgramManager::HashType ProgramManager::ComputeSpvHash(const Vector<Vector<Uint32>>& spirvs) const {
+        XXH64_state_t* state = XXH64_createState();
+        XXH64_reset(state, 0xC0FFEEu);
+        for (const auto& spv : spirvs) {
+            if (spv.empty()) continue;
+            XXH64_update(state, spv.data(), spv.size() * sizeof(Uint32));
+        }
+        HashType hash = XXH64_digest(state);
+        XXH64_freeState(state);
+        return hash;
+    }
+
+    void ProgramManager::BuildPipelineSpirvModules(MG_State::GLState::ProgramObject* program,
+                                                   Vector<Vector<Uint32>>& outSpirvs,
+                                                   ShaderTransformFlags transformFlags) const {
+        outSpirvs.clear();
+        if (!program) return;
+
+        auto& spirvs = program->GetGeneratedSpirv();
+        auto& shaders = program->GetAttachedShaders();
+        const ShaderStage fixupStage = PickClipFixupStage(shaders);
+
+        outSpirvs.reserve(spirvs.size());
+        for (SizeT i = 0; i < spirvs.size(); ++i) {
+            Vector<Uint32> module = spirvs[i];
+
+            ShaderStage stage = ShaderStage::Unknown;
+            if (i < shaders.size() && shaders[i]) stage = shaders[i]->GetShaderStage();
+
+            if (!module.empty() && fixupStage != ShaderStage::Unknown && stage == fixupStage) {
+                Vector<Uint32> transformed;
+                TransformSpirvForVulkanPositionFix(module, transformed, transformFlags);
+                module = Move(transformed);
+            }
+            outSpirvs.push_back(Move(module));
+        }
+    }
+
+    ProgramManager::HashType ProgramManager::ComputeSpvHash(MG_State::GLState::ProgramObject* program,
+                                                            ShaderTransformFlags transformFlags) const {
+        Vector<Vector<Uint32>> spirvs;
+        BuildPipelineSpirvModules(program, spirvs, transformFlags);
+        return ComputeSpvHash(spirvs);
+    }
+
+    ProgramManager::HashType ProgramManager::ComputeProgramHash(MG_State::GLState::ProgramObject* program,
+                                                                ShaderTransformFlags transformFlags) const {
+        if (!program) return 0;
+        const HashType sourceHash = ComputeSourceSpvHash(program);
+        auto it = m_cache.find(program);
+        if (it != m_cache.end() && it->second.sourceHash == sourceHash) return it->second.hash;
+        return ComputeSpvHash(program, transformFlags);
+    }
+
+    VkShaderStageFlagBits ProgramManager::ToVkStage(ShaderStage stage) const {
+        switch (stage) {
+        case ShaderStage::Vertex:
+            return VK_SHADER_STAGE_VERTEX_BIT;
+        case ShaderStage::Fragment:
+            return VK_SHADER_STAGE_FRAGMENT_BIT;
+        case ShaderStage::Geometry:
+            return VK_SHADER_STAGE_GEOMETRY_BIT;
+        case ShaderStage::TessControl:
+            return VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT;
+        case ShaderStage::TessEval:
+            return VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT;
+        case ShaderStage::Compute:
+            return VK_SHADER_STAGE_COMPUTE_BIT;
+        default:
+            return VK_SHADER_STAGE_ALL_GRAPHICS;
+        }
+    }
+
+    void ProgramManager::DestroyStages(ProgramStages& stages) {
+        for (auto module : stages.modules) {
+            if (module != VK_NULL_HANDLE) {
+                vkDestroyShaderModule(m_ctx.GetDevice(), module, nullptr);
+            }
+        }
+        stages.modules.clear();
+        stages.stages.clear();
+        stages.sourceHash = 0;
+        stages.hash = 0;
+    }
+
+    Vector<VkPipelineShaderStageCreateInfo>& ProgramManager::CreatePipelineShaderStages(
+        MG_State::GLState::ProgramObject* program, ShaderTransformFlags transformFlags) {
+        auto& entry = m_cache[program];
+        HashType sourceHash = ComputeSourceSpvHash(program);
+        if (!entry.stages.empty() && entry.sourceHash == sourceHash) return entry.stages;
+
+        DestroyStages(entry);
+        entry.sourceHash = sourceHash;
+
+        if (!program) return entry.stages;
+
+        Vector<Vector<Uint32>> spirvs;
+        BuildPipelineSpirvModules(program, spirvs, transformFlags);
+        entry.hash = ComputeSpvHash(spirvs);
+        auto& shaders = program->GetAttachedShaders();
+
+        for (SizeT i = 0; i < spirvs.size(); ++i) {
+            auto& spv = spirvs[i];
+            if (spv.empty()) continue;
+
+            VkShaderModuleCreateInfo smci{VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO};
+            smci.codeSize = spv.size() * sizeof(Uint);
+            smci.pCode = spv.data();
+
+            VkShaderModule module = VK_NULL_HANDLE;
+            VK_VERIFY(vkCreateShaderModule(m_ctx.GetDevice(), &smci, nullptr, &module), "vkCreateShaderModule");
+
+            VkPipelineShaderStageCreateInfo stage{VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO};
+            ShaderStage shaderStage = ShaderStage::Unknown;
+            if (i < shaders.size() && shaders[i]) shaderStage = shaders[i]->GetShaderStage();
+            stage.stage = ToVkStage(shaderStage);
+            stage.module = module;
+            stage.pName = "main";
+
+            entry.modules.push_back(module);
+            entry.stages.push_back(stage);
+        }
+
+        return entry.stages;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Managers/ProgramManager.h

@@ -0,0 +1,58 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Managers/ProgramManager.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>
+#include "../Renderer/VulkanContext.h"
+#include "../Renderer/VkCommon.h"
+#include "MG_State/GLState/ProgramState/ProgramObject.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    enum class ShaderTransformBit : Uint {
+        None = 0,
+        PositionYFlip = 1 << 0,
+        PositionZRemap = 1 << 1,
+    };
+    using ShaderTransformFlags = Flags<ShaderTransformBit>;
+
+    class ProgramManager {
+    public:
+        using HashType = Uint64;
+
+        explicit ProgramManager(VulkanContext& ctx) : m_ctx(ctx) {}
+        ~ProgramManager();
+
+        ProgramManager(const ProgramManager&) = delete;
+        ProgramManager& operator=(const ProgramManager&) = delete;
+
+        Vector<VkPipelineShaderStageCreateInfo>& CreatePipelineShaderStages(
+            MG_State::GLState::ProgramObject* program,
+            ShaderTransformFlags transformFlags = ShaderTransformBit::PositionZRemap);
+        HashType ComputeProgramHash(MG_State::GLState::ProgramObject* program,
+                                    ShaderTransformFlags transformFlags = ShaderTransformBit::PositionZRemap) const;
+
+    private:
+        struct ProgramStages {
+            HashType sourceHash = 0;
+            HashType hash = 0;
+            Vector<VkPipelineShaderStageCreateInfo> stages;
+            Vector<VkShaderModule> modules;
+        };
+
+        void DestroyStages(ProgramStages& stages);
+        HashType ComputeSourceSpvHash(MG_State::GLState::ProgramObject* program) const;
+        HashType ComputeSpvHash(MG_State::GLState::ProgramObject* program, ShaderTransformFlags transformFlags) const;
+        HashType ComputeSpvHash(const Vector<Vector<Uint32>>& spirvs) const;
+        void BuildPipelineSpirvModules(MG_State::GLState::ProgramObject* program, Vector<Vector<Uint32>>& outSpirvs,
+                                       ShaderTransformFlags transformFlags) const;
+        VkShaderStageFlagBits ToVkStage(ShaderStage stage) const;
+
+        VulkanContext& m_ctx;
+        UnorderedMap<const MG_State::GLState::ProgramObject*, ProgramStages> m_cache;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/FrameContext.cpp

@@ -0,0 +1,49 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/FrameContext.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 "FrameContext.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    void FrameContext::Initialize(VulkanContext& ctx, VkCommandPool pool) {
+        CommandPool = pool;
+        VkCommandBufferAllocateInfo abci{VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO};
+        abci.commandPool = pool;
+        abci.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
+        abci.commandBufferCount = 1;
+        VK_VERIFY(vkAllocateCommandBuffers(ctx.GetDevice(), &abci, &CommandBuffer), "vkAllocateCommandBuffers");
+
+        VkSemaphoreCreateInfo sci{VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO};
+        VK_VERIFY(vkCreateSemaphore(ctx.GetDevice(), &sci, nullptr, &ImageAvailable), "vkCreateSemaphore");
+        VK_VERIFY(vkCreateSemaphore(ctx.GetDevice(), &sci, nullptr, &RenderFinished), "vkCreateSemaphore");
+
+        VkFenceCreateInfo fci{VK_STRUCTURE_TYPE_FENCE_CREATE_INFO};
+        fci.flags = VK_FENCE_CREATE_SIGNALED_BIT;
+        VK_VERIFY(vkCreateFence(ctx.GetDevice(), &fci, nullptr, &InFlightFence), "vkCreateFence");
+    }
+
+    void FrameContext::Cleanup(VulkanContext& ctx) {
+        auto device = ctx.GetDevice();
+        if (InFlightFence != VK_NULL_HANDLE) {
+            vkDestroyFence(device, InFlightFence, nullptr);
+            InFlightFence = VK_NULL_HANDLE;
+        }
+        if (ImageAvailable != VK_NULL_HANDLE) {
+            vkDestroySemaphore(device, ImageAvailable, nullptr);
+            ImageAvailable = VK_NULL_HANDLE;
+        }
+        if (RenderFinished != VK_NULL_HANDLE) {
+            vkDestroySemaphore(device, RenderFinished, nullptr);
+            RenderFinished = VK_NULL_HANDLE;
+        }
+        if (CommandBuffer != VK_NULL_HANDLE) {
+            vkFreeCommandBuffers(device, CommandPool, 1, &CommandBuffer);
+            CommandBuffer = VK_NULL_HANDLE;
+        }
+        CommandPool = VK_NULL_HANDLE;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/FrameContext.h

@@ -0,0 +1,42 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/FrameContext.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>
+#include "VulkanContext.h"
+#include "VkCommon.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP {
+    struct TrashBuffer {
+        VkBuffer buffer = VK_NULL_HANDLE;
+        VkDeviceMemory memory = VK_NULL_HANDLE;
+        Bool mapped = false;
+    };
+    struct TrashImage {
+        VkImage image = VK_NULL_HANDLE;
+        VkDeviceMemory memory = VK_NULL_HANDLE;
+        VkImageView view = VK_NULL_HANDLE;
+        Vector<VkImageView> mipViews;
+    };
+    namespace VkManager {
+        struct FrameContext {
+            VkCommandBuffer CommandBuffer = VK_NULL_HANDLE;
+            VkSemaphore ImageAvailable = VK_NULL_HANDLE;
+            VkSemaphore RenderFinished = VK_NULL_HANDLE;
+            VkFence InFlightFence = VK_NULL_HANDLE;
+            Uint32 CurrentImageIndex = 0;
+            VkCommandPool CommandPool = VK_NULL_HANDLE;
+            Vector<TrashBuffer> TrashBuffers;
+            Vector<TrashImage> TrashImages;
+            // VkCommandPool CommandPool = VK_NULL_HANDLE;
+
+            void Initialize(VulkanContext& ctx, VkCommandPool pool);
+            void Cleanup(VulkanContext& ctx);
+        };
+    } // namespace VkManager
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/PipelineManager.cpp

@@ -0,0 +1,11 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/PipelineManager.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 <Includes.h>
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {}

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/SwapchainManager.cpp

@@ -0,0 +1,166 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/SwapchainManager.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 "SwapchainManager.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    namespace {
+        VkSurfaceFormatKHR ChooseSurfaceFormat(const Vector<VkSurfaceFormatKHR>& formats) {
+            for (const auto& f : formats) {
+                if ((f.format == VK_FORMAT_R8G8B8A8_UNORM || f.format == VK_FORMAT_B8G8R8A8_UNORM) &&
+                    f.colorSpace == VK_COLOR_SPACE_SRGB_NONLINEAR_KHR) {
+                    return f;
+                }
+            }
+            return formats.empty() ? VkSurfaceFormatKHR{VK_FORMAT_B8G8R8A8_UNORM, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR}
+                                   : formats[0];
+        }
+
+        VkPresentModeKHR ChoosePresentMode(const Vector<VkPresentModeKHR>& modes) {
+            for (const auto& m : modes) {
+                if (m == VK_PRESENT_MODE_MAILBOX_KHR) return m;
+            }
+            return VK_PRESENT_MODE_FIFO_KHR;
+        }
+
+        VkExtent2D ChooseExtent(const VkSurfaceCapabilitiesKHR& caps, ANativeWindow* window) {
+            if (caps.currentExtent.width != UINT32_MAX) return caps.currentExtent;
+            // try to get frontend viewport size
+            VkExtent2D extent{640, 480};
+#ifdef VK_USE_PLATFORM_ANDROID_KHR
+            if (window) {
+                extent.width = static_cast<Uint32>(ANativeWindow_getWidth(window));
+                extent.height = static_cast<Uint32>(ANativeWindow_getHeight(window));
+            }
+#else
+            (void)window;
+#endif
+            extent.width = std::max(caps.minImageExtent.width, std::min(caps.maxImageExtent.width, extent.width));
+            extent.height = std::max(caps.minImageExtent.height, std::min(caps.maxImageExtent.height, extent.height));
+            return extent;
+        }
+    } // namespace
+
+    SwapchainManager::~SwapchainManager() {
+        DestroySwapchain();
+    }
+
+    void SwapchainManager::Initialize() {
+        CreateSwapchain(VK_NULL_HANDLE);
+    }
+
+    void SwapchainManager::Recreate() {
+        DestroySwapchain();
+        CreateSwapchain(VK_NULL_HANDLE);
+    }
+
+    void SwapchainManager::SetFramebuffers(Vector<VkFramebuffer>&& framebuffers) {
+        m_framebuffers = Move(framebuffers);
+    }
+
+    void SwapchainManager::DestroySwapchain() {
+        auto device = m_ctx.GetDevice();
+        if (device == VK_NULL_HANDLE) return;
+        for (auto fb : m_framebuffers) {
+            if (fb != VK_NULL_HANDLE) vkDestroyFramebuffer(device, fb, nullptr);
+        }
+        m_framebuffers.clear();
+
+        for (auto view : m_imageViews) {
+            if (view != VK_NULL_HANDLE) vkDestroyImageView(device, view, nullptr);
+        }
+        m_imageViews.clear();
+        m_images.clear();
+        m_imagesInFlight.clear();
+
+        if (m_swapchain != VK_NULL_HANDLE) {
+            vkDestroySwapchainKHR(device, m_swapchain, nullptr);
+            m_swapchain = VK_NULL_HANDLE;
+        }
+        m_format = VK_FORMAT_UNDEFINED;
+        m_extent = {0, 0};
+    }
+
+    void SwapchainManager::CreateSwapchain(VkSwapchainKHR oldSwapchain) {
+        VkSurfaceCapabilitiesKHR caps{};
+        VK_VERIFY(vkGetPhysicalDeviceSurfaceCapabilitiesKHR(m_ctx.GetPhysicalDevice(), m_ctx.GetSurface(), &caps),
+                  "vkGetPhysicalDeviceSurfaceCapabilitiesKHR");
+
+        Uint32 fmtCount = 0;
+        vkGetPhysicalDeviceSurfaceFormatsKHR(m_ctx.GetPhysicalDevice(), m_ctx.GetSurface(), &fmtCount, nullptr);
+        Vector<VkSurfaceFormatKHR> formats(fmtCount);
+        if (fmtCount > 0) {
+            vkGetPhysicalDeviceSurfaceFormatsKHR(m_ctx.GetPhysicalDevice(), m_ctx.GetSurface(), &fmtCount,
+                                                 formats.data());
+        }
+
+        Uint32 modeCount = 0;
+        vkGetPhysicalDeviceSurfacePresentModesKHR(m_ctx.GetPhysicalDevice(), m_ctx.GetSurface(), &modeCount, nullptr);
+        Vector<VkPresentModeKHR> modes(modeCount);
+        if (modeCount > 0) {
+            vkGetPhysicalDeviceSurfacePresentModesKHR(m_ctx.GetPhysicalDevice(), m_ctx.GetSurface(), &modeCount,
+                                                      modes.data());
+        }
+
+        VkSurfaceFormatKHR surfaceFormat = ChooseSurfaceFormat(formats);
+        VkPresentModeKHR presentMode = ChoosePresentMode(modes);
+        VkExtent2D extent;
+        if (m_viewportSize.x() == 0 || m_viewportSize.y() == 0) {
+            extent = ChooseExtent(caps, m_ctx.GetWindow());
+        } else {
+            extent = {m_viewportSize.x(), m_viewportSize.y()};
+        }
+
+        Uint32 imageCount = caps.minImageCount + 1;
+        if (caps.maxImageCount > 0 && imageCount > caps.maxImageCount) imageCount = caps.maxImageCount;
+
+        VkSwapchainCreateInfoKHR sci{VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR};
+        sci.surface = m_ctx.GetSurface();
+        sci.minImageCount = imageCount;
+        sci.imageFormat = surfaceFormat.format;
+        sci.imageColorSpace = surfaceFormat.colorSpace;
+        sci.imageExtent = extent;
+        sci.imageArrayLayers = 1;
+        sci.imageUsage =
+            VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
+        sci.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE;
+        sci.preTransform = caps.currentTransform;
+        sci.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
+        sci.presentMode = presentMode;
+        sci.clipped = VK_TRUE;
+        sci.oldSwapchain = oldSwapchain;
+
+        VK_VERIFY(vkCreateSwapchainKHR(m_ctx.GetDevice(), &sci, nullptr, &m_swapchain), "vkCreateSwapchainKHR");
+
+        Uint32 actualCount = 0;
+        vkGetSwapchainImagesKHR(m_ctx.GetDevice(), m_swapchain, &actualCount, nullptr);
+        m_images.resize(actualCount);
+        vkGetSwapchainImagesKHR(m_ctx.GetDevice(), m_swapchain, &actualCount, m_images.data());
+
+        m_imageViews.clear();
+        m_imageViews.reserve(actualCount);
+        for (auto image : m_images) {
+            VkImageViewCreateInfo ivci{VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO};
+            ivci.image = image;
+            ivci.viewType = VK_IMAGE_VIEW_TYPE_2D;
+            ivci.format = surfaceFormat.format;
+            ivci.subresourceRange.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
+            ivci.subresourceRange.baseMipLevel = 0;
+            ivci.subresourceRange.levelCount = 1;
+            ivci.subresourceRange.baseArrayLayer = 0;
+            ivci.subresourceRange.layerCount = 1;
+            VkImageView view = VK_NULL_HANDLE;
+            VK_VERIFY(vkCreateImageView(m_ctx.GetDevice(), &ivci, nullptr, &view), "vkCreateImageView swapchain");
+            m_imageViews.push_back(view);
+        }
+
+        m_imagesInFlight.assign(actualCount, VK_NULL_HANDLE);
+        m_format = surfaceFormat.format;
+        m_extent = extent;
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/SwapchainManager.h

@@ -0,0 +1,52 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/SwapchainManager.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>
+#include "MG_Util/Math/VectorTypes.h"
+#include "VulkanContext.h"
+#include "VkCommon.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    class SwapchainManager {
+    public:
+        explicit SwapchainManager(VulkanContext& ctx) : m_ctx(ctx) {}
+        ~SwapchainManager();
+
+        SwapchainManager(const SwapchainManager&) = delete;
+        SwapchainManager& operator=(const SwapchainManager&) = delete;
+
+        void Initialize();
+        void Recreate();
+        void SetViewportSize(const UintVec2& size) { m_viewportSize = size; }
+
+        VkSwapchainKHR GetSwapchain() const { return m_swapchain; }
+        VkFormat GetFormat() const { return m_format; }
+        VkExtent2D GetExtent() const { return m_extent; }
+        const Vector<VkImage>& GetImages() const { return m_images; }
+        const Vector<VkImageView>& GetImageViews() const { return m_imageViews; }
+        const Vector<VkFramebuffer>& GetFramebuffers() const { return m_framebuffers; }
+        void SetFramebuffers(Vector<VkFramebuffer>&& framebuffers);
+        Vector<VkFence>& GetImagesInFlight() { return m_imagesInFlight; }
+        const UintVec2& GetViewportSize() const { return m_viewportSize; }
+
+    private:
+        void CreateSwapchain(VkSwapchainKHR oldSwapchain);
+        void DestroySwapchain();
+
+        VulkanContext& m_ctx;
+        VkSwapchainKHR m_swapchain = VK_NULL_HANDLE;
+        VkFormat m_format = VK_FORMAT_UNDEFINED;
+        VkExtent2D m_extent{0, 0};
+        Vector<VkImage> m_images;
+        Vector<VkImageView> m_imageViews;
+        Vector<VkFramebuffer> m_framebuffers;
+        Vector<VkFence> m_imagesInFlight;
+        UintVec2 m_viewportSize{0, 0};
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VkCommon.h

@@ -0,0 +1,22 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VkCommon.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_Backend::DirectVulkanTMP::VkManager {
+    inline void VkCheck(VkResult result, const char* msg) {
+        if (result == VK_SUCCESS || result == VK_SUBOPTIMAL_KHR) return;
+        MGLOG_E("Vulkan error %d at %s", static_cast<Int>(result), msg ? msg : "(unknown)");
+        throw RuntimeError(msg ? msg : "Vulkan error");
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager
+
+#ifndef VK_VERIFY
+#define VK_VERIFY(res, msg) ::MobileGL::MG_Backend::DirectVulkanTMP::VkManager::VkCheck((res), (msg))
+#endif

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VulkanContext.cpp

@@ -0,0 +1,191 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VulkanContext.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 "VulkanContext.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    namespace {
+        Bool CheckDeviceExtensionSupport(VkPhysicalDevice device, const Vector<const char*>& required) {
+            Uint32 count = 0;
+            vkEnumerateDeviceExtensionProperties(device, nullptr, &count, nullptr);
+            Vector<VkExtensionProperties> props(count);
+            if (count > 0) vkEnumerateDeviceExtensionProperties(device, nullptr, &count, props.data());
+
+            for (auto* ext : required) {
+                Bool found = false;
+                for (const auto& p : props) {
+                    if (std::strcmp(p.extensionName, ext) == 0) {
+                        found = true;
+                        break;
+                    }
+                }
+                if (!found) return false;
+            }
+            return true;
+        }
+
+        Bool FindGraphicsQueueFamily(VkPhysicalDevice device, VkSurfaceKHR surface, Uint32& outFamily) {
+            Uint32 count = 0;
+            vkGetPhysicalDeviceQueueFamilyProperties(device, &count, nullptr);
+            if (count == 0) return false;
+            Vector<VkQueueFamilyProperties> props(count);
+            vkGetPhysicalDeviceQueueFamilyProperties(device, &count, props.data());
+
+            for (Uint32 i = 0; i < count; ++i) {
+                if (!(props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)) continue;
+                if (surface != VK_NULL_HANDLE) {
+                    VkBool32 presentSupport = VK_FALSE;
+                    vkGetPhysicalDeviceSurfaceSupportKHR(device, i, surface, &presentSupport);
+                    if (!presentSupport) continue;
+                }
+                outFamily = i;
+                return true;
+            }
+            return false;
+        }
+
+        Bool SupportsDynamicRendering(VkPhysicalDevice device) {
+            VkPhysicalDeviceVulkan13Features vk13{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES};
+            VkPhysicalDeviceFeatures2 features2{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2};
+            features2.pNext = &vk13;
+            vkGetPhysicalDeviceFeatures2(device, &features2);
+            return vk13.dynamicRendering == VK_TRUE;
+        }
+
+        Bool SupportsTimelineSemaphore(VkPhysicalDevice device) {
+            VkPhysicalDeviceVulkan12Features vk12{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES};
+            VkPhysicalDeviceFeatures2 features2{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2};
+            features2.pNext = &vk12;
+            vkGetPhysicalDeviceFeatures2(device, &features2);
+            return vk12.timelineSemaphore == VK_TRUE;
+        }
+    } // namespace
+
+    VulkanContext::~VulkanContext() {
+        Cleanup();
+    }
+
+    void VulkanContext::Initialize(ANativeWindow* window, const char* appName) {
+        if (m_instance != VK_NULL_HANDLE) return;
+        m_window = window;
+        CreateInstance(appName ? appName : "MobileGL-Vulkan");
+        CreateSurface(window);
+        PickPhysicalDevice();
+        CreateDevice();
+    }
+
+    void VulkanContext::Cleanup() {
+        if (m_device != VK_NULL_HANDLE) {
+            vkDeviceWaitIdle(m_device);
+            vkDestroyDevice(m_device, nullptr);
+            m_device = VK_NULL_HANDLE;
+        }
+        if (m_surface != VK_NULL_HANDLE) {
+            vkDestroySurfaceKHR(m_instance, m_surface, nullptr);
+            m_surface = VK_NULL_HANDLE;
+        }
+        if (m_instance != VK_NULL_HANDLE) {
+            vkDestroyInstance(m_instance, nullptr);
+            m_instance = VK_NULL_HANDLE;
+        }
+        m_physicalDevice = VK_NULL_HANDLE;
+        m_graphicsQueue = VK_NULL_HANDLE;
+        m_graphicsQueueFamily = ~0u;
+        m_window = nullptr;
+    }
+
+    void VulkanContext::CreateInstance(const char* appName) {
+        VkApplicationInfo app{VK_STRUCTURE_TYPE_APPLICATION_INFO};
+        app.pApplicationName = appName;
+        app.applicationVersion = VK_MAKE_VERSION(1, 3, 0);
+        app.pEngineName = "MobileGL";
+        app.engineVersion = VK_MAKE_VERSION(1, 3, 0);
+        app.apiVersion = VK_API_VERSION_1_3;
+
+        Vector<const char*> extensions;
+        extensions.push_back(VK_KHR_SURFACE_EXTENSION_NAME);
+#ifdef VK_USE_PLATFORM_ANDROID_KHR
+        extensions.push_back(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME);
+#endif
+
+        VkInstanceCreateInfo ici{VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO};
+        ici.pApplicationInfo = &app;
+        ici.enabledExtensionCount = static_cast<Uint32>(extensions.size());
+        ici.ppEnabledExtensionNames = extensions.data();
+
+        VK_VERIFY(vkCreateInstance(&ici, nullptr, &m_instance), "vkCreateInstance");
+    }
+
+    void VulkanContext::CreateSurface(ANativeWindow* window) {
+        if (!window) return;
+#ifdef VK_USE_PLATFORM_ANDROID_KHR
+        VkAndroidSurfaceCreateInfoKHR sci{VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR};
+        sci.window = window;
+        VK_VERIFY(vkCreateAndroidSurfaceKHR(m_instance, &sci, nullptr, &m_surface), "vkCreateAndroidSurfaceKHR");
+#else
+        (void)window;
+#endif
+    }
+
+    void VulkanContext::PickPhysicalDevice() {
+        Uint32 count = 0;
+        VK_VERIFY(vkEnumeratePhysicalDevices(m_instance, &count, nullptr), "vkEnumeratePhysicalDevices");
+        if (count == 0) throw RuntimeError("No Vulkan physical devices found");
+
+        Vector<VkPhysicalDevice> devices(count);
+        VK_VERIFY(vkEnumeratePhysicalDevices(m_instance, &count, devices.data()), "vkEnumeratePhysicalDevices list");
+
+        Vector<const char*> requiredExts = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
+
+        for (auto device : devices) {
+            Uint32 family = ~0u;
+            if (!FindGraphicsQueueFamily(device, m_surface, family)) continue;
+            if (!CheckDeviceExtensionSupport(device, requiredExts)) continue;
+            if (!SupportsDynamicRendering(device)) continue;
+
+            m_physicalDevice = device;
+            m_graphicsQueueFamily = family;
+            break;
+        }
+
+        if (m_physicalDevice == VK_NULL_HANDLE) {
+            throw RuntimeError("No suitable Vulkan physical device found");
+        }
+    }
+
+    void VulkanContext::CreateDevice() {
+        float priority = 1.0f;
+        VkDeviceQueueCreateInfo qci{VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO};
+        qci.queueFamilyIndex = m_graphicsQueueFamily;
+        qci.queueCount = 1;
+        qci.pQueuePriorities = &priority;
+
+        Vector<const char*> deviceExtensions = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
+
+        VkPhysicalDeviceFeatures features{};
+        VkPhysicalDeviceVulkan13Features vk13{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES};
+        vk13.dynamicRendering = VK_TRUE;
+        VkPhysicalDeviceVulkan12Features vk12{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES};
+        vk12.timelineSemaphore = SupportsTimelineSemaphore(m_physicalDevice) ? VK_TRUE : VK_FALSE;
+        VkPhysicalDeviceFeatures2 features2{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2};
+        features2.features = features;
+        vk13.pNext = &vk12;
+        features2.pNext = &vk13;
+
+        VkDeviceCreateInfo dci{VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO};
+        dci.pNext = &features2;
+        dci.queueCreateInfoCount = 1;
+        dci.pQueueCreateInfos = &qci;
+        dci.enabledExtensionCount = static_cast<Uint32>(deviceExtensions.size());
+        dci.ppEnabledExtensionNames = deviceExtensions.data();
+        dci.pEnabledFeatures = nullptr;
+
+        VK_VERIFY(vkCreateDevice(m_physicalDevice, &dci, nullptr, &m_device), "vkCreateDevice");
+        vkGetDeviceQueue(m_device, m_graphicsQueueFamily, 0, &m_graphicsQueue);
+    }
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VulkanContext.h

@@ -0,0 +1,47 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/Renderer/VulkanContext.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>
+#include "VkCommon.h"
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager {
+    class VulkanContext {
+    public:
+        VulkanContext() = default;
+        ~VulkanContext();
+
+        VulkanContext(const VulkanContext&) = delete;
+        VulkanContext& operator=(const VulkanContext&) = delete;
+
+        void Initialize(ANativeWindow* window, const char* appName);
+        void Cleanup();
+
+        VkInstance GetInstance() const { return m_instance; }
+        VkPhysicalDevice GetPhysicalDevice() const { return m_physicalDevice; }
+        VkDevice GetDevice() const { return m_device; }
+        VkQueue GetGraphicsQueue() const { return m_graphicsQueue; }
+        Uint32 GetGraphicsQueueFamily() const { return m_graphicsQueueFamily; }
+        VkSurfaceKHR GetSurface() const { return m_surface; }
+        ANativeWindow* GetWindow() const { return m_window; }
+
+    private:
+        void CreateInstance(const char* appName);
+        void CreateSurface(ANativeWindow* window);
+        void PickPhysicalDevice();
+        void CreateDevice();
+
+        VkInstance m_instance = VK_NULL_HANDLE;
+        VkPhysicalDevice m_physicalDevice = VK_NULL_HANDLE;
+        VkDevice m_device = VK_NULL_HANDLE;
+        VkQueue m_graphicsQueue = VK_NULL_HANDLE;
+        VkSurfaceKHR m_surface = VK_NULL_HANDLE;
+        Uint32 m_graphicsQueueFamily = ~0u;
+        ANativeWindow* m_window = nullptr;
+    };
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::VkManager

MobileGL/MG_Backend/DirectVulkanTMP/TmpImpl.h

@@ -0,0 +1,308 @@
+// MobileGL - MobileGL/MG_Backend/DirectVulkanTMP/TmpImpl.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>
+#include "Renderer/VkCommon.h"
+#include "Renderer/VulkanContext.h"
+#include "Renderer/SwapchainManager.h"
+#include "Renderer/FrameContext.h"
+#include "Managers/ProgramManager.h"
+#include <MG_State/GLState/Core.h>
+
+namespace MobileGL::MG_Backend::DirectVulkanTMP::TmpImpl {
+    namespace DV = MobileGL::MG_Backend::DirectVulkanTMP::VkManager;
+    using BufferObject = MobileGL::MG_State::GLState::BufferObject;
+    using ProgramObject = MobileGL::MG_State::GLState::ProgramObject;
+    using VertexArrayObject = MobileGL::MG_State::GLState::VertexArrayObject;
+    using FramebufferObject = MobileGL::MG_State::GLState::FramebufferObject;
+    using FramebufferAttachmentObject = MobileGL::MG_State::GLState::FramebufferAttachmentObject;
+    using ITextureObject = MobileGL::MG_State::GLState::ITextureObject;
+    using RenderbufferObject = MobileGL::MG_State::GLState::RenderbufferObject;
+    using SamplerObject = MobileGL::MG_State::GLState::SamplerObject;
+    using TextureObjectMipmap = MobileGL::MG_State::GLState::TextureObjectMipmap;
+    using TrashImage = MobileGL::MG_Backend::DirectVulkanTMP::TrashImage;
+
+    struct BufferResource {
+        VkBuffer buffer = VK_NULL_HANDLE;
+        VkDeviceMemory memory = VK_NULL_HANDLE;
+        VkDeviceSize size = 0;
+        VkDeviceSize offset = 0;
+        VkBufferUsageFlags usage = 0;
+        VkMemoryPropertyFlags props = 0;
+        void* mapped = nullptr;
+        Bool fromRing = false;
+        Uint32 lastUsedFrame = ~0u;
+    };
+
+    struct BufferResourceSet {
+        Vector<BufferResource> perFrame;
+    };
+
+    struct PendingBufferCopyBatch {
+        VkBuffer src = VK_NULL_HANDLE;
+        VkBuffer dst = VK_NULL_HANDLE;
+        Vector<VkBufferCopy> regions;
+    };
+
+    struct StagingRing {
+        BufferResource buffer;
+        VkDeviceSize capacity = 0;
+        VkDeviceSize head = 0;
+    };
+
+    struct TextureResource {
+        VkImage image = VK_NULL_HANDLE;
+        VkDeviceMemory memory = VK_NULL_HANDLE;
+        VkImageView view = VK_NULL_HANDLE;
+        UnorderedMap<Uint32, VkImageView> mipViews;
+        VkFormat format = VK_FORMAT_UNDEFINED;
+        VkExtent3D extent{0, 0, 1};
+        VkImageLayout layout = VK_IMAGE_LAYOUT_UNDEFINED;
+        Uint32 mipLevels = 1;
+        Uint16 paramsVersion = 0;
+        bool valid = false;
+    };
+
+    struct RenderbufferResource {
+        VkImage image = VK_NULL_HANDLE;
+        VkDeviceMemory memory = VK_NULL_HANDLE;
+        VkImageView view = VK_NULL_HANDLE;
+        VkFormat format = VK_FORMAT_UNDEFINED;
+        VkExtent2D extent{0, 0};
+        VkImageLayout layout = VK_IMAGE_LAYOUT_UNDEFINED;
+        bool valid = false;
+    };
+
+    struct SamplerResource {
+        VkSampler sampler = VK_NULL_HANDLE;
+        Uint16 version = 0;
+        SamplerParameters params{};
+    };
+
+    struct PendingClearInfo {
+        GLbitfield mask = 0;
+        FloatVec4 clearColor = {0.0f, 0.0f, 0.0f, 1.0f};
+        Float clearDepth = 1.0f;
+    };
+
+    struct UniformBindingInfo {
+        String name;
+        Uint32 binding = 0;
+        Uint32 set = 0;
+        Uint32 blockIndex = 0xFFFFFFFFu;
+        VkShaderStageFlags stages = 0;
+    };
+
+    struct SamplerBindingInfo {
+        String name;
+        Uint32 binding = 0;
+        Uint32 set = 0;
+        VkShaderStageFlags stages = 0;
+    };
+
+    struct ProgramResource {
+        ProgramObject* program = nullptr;
+        Uint64 spvHash = 0;
+        DV::ProgramManager::HashType programHash = 0;
+        Vector<VkPipelineShaderStageCreateInfo>* shaderStages = nullptr;
+
+        VkDescriptorSetLayout setLayout = VK_NULL_HANDLE;
+        VkPipelineLayout pipelineLayout = VK_NULL_HANDLE;
+
+        struct UboPool {
+            Vector<BufferResource> buffers;
+            Uint32 cursor = 0;
+        };
+        Vector<UboPool> uboPools;
+        SizeT uboSize = 0;
+        Int32 uboBinding = -1;
+        Uint32 uniformDescriptorCount = 0;
+        Uint32 samplerDescriptorCount = 0;
+
+        Vector<UniformBindingInfo> uniformBindings;
+        Vector<SamplerBindingInfo> samplerBindings;
+        UnorderedMap<String, Uint32> samplerBindingByName;
+
+        UnorderedMap<Uint64, VkPipeline> pipelines;
+    };
+
+    struct DescriptorPoolConfig {
+        Uint32 maxSets = 0;
+        Uint32 uniformCount = 0;
+        Uint32 samplerCount = 0;
+    };
+
+    struct FrameDescriptorPools {
+        Vector<VkDescriptorPool> pools;
+        DescriptorPoolConfig config;
+        Uint32 activePool = 0;
+    };
+
+    struct VertexAttribKey {
+        Uint8 enabled = 0;
+        Uint8 size = 0;
+        Uint8 type = 0;
+        Uint8 normalized = 0;
+        Uint8 isInteger = 0;
+        Uint8 divisor = 0;
+        Uint16 pad = 0;
+        Uint32 stride = 0;
+        Uint64 offset = 0;
+    };
+
+    struct AttachmentInfo {
+        FramebufferAttachmentType type = FramebufferAttachmentType::None;
+        VkImageView view = VK_NULL_HANDLE;
+        VkFormat format = VK_FORMAT_UNDEFINED;
+        VkImageAspectFlags aspect = 0;
+        VkImageLayout finalLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        ITextureObject* texture = nullptr;
+        RenderbufferObject* renderbuffer = nullptr;
+    };
+
+    struct BackendFramebufferObject {
+        VkExtent2D extent{0, 0};
+        Uint32 colorAttachmentCount = 0;
+        Bool hasDepth = false;
+        VkFormat depthFormat = VK_FORMAT_UNDEFINED;
+        VkFormat depthAttachmentFormat = VK_FORMAT_UNDEFINED;
+        VkFormat stencilAttachmentFormat = VK_FORMAT_UNDEFINED;
+        Uint64 renderingCompatHash = 0;
+
+        Vector<AttachmentInfo> attachments;
+        Vector<VkFormat> colorAttachmentFormats;
+        Array<Int32, static_cast<SizeT>(FramebufferAttachmentType::FramebufferAttachmentTypeCount)> attachmentIndex =
+            {};
+
+        FramebufferObject::FramebufferAttachmentVersionArray syncedAttachmentVersions = {0};
+        FramebufferObject::FramebufferAttachmentArray frontendDrawBuffers = {FramebufferAttachmentType::None};
+        Array<Int32, FramebufferObject::MAX_DRAW_BUFFERS> drawBufferAttachmentIndices = {};
+        FramebufferAttachmentType frontendReadBuffer = FramebufferAttachmentType::Color0;
+        Uint64 configHash = 0;
+        Uint16 objectVersion = 0;
+
+        Bool IsValid() const { return !attachments.empty() && extent.width > 0 && extent.height > 0; }
+    };
+
+    struct VulkanState {
+        UniquePtr<DV::VulkanContext> ctx;
+        UniquePtr<DV::SwapchainManager> swapchain;
+        UniquePtr<DV::ProgramManager> programMgr;
+        VkCommandPool commandPool = VK_NULL_HANDLE;
+        Vector<UniquePtr<DV::FrameContext>> frames;
+        Vector<FrameDescriptorPools> frameDescriptorPools;
+        Vector<BufferResource> stagingPool;
+        Vector<Vector<BufferResource>> stagingPending;
+        Uint32 currentFrame = 0;
+        Uint32 maxFramesInFlight = 2;
+        Bool initialized = false;
+        UintVec2 viewportSize{0, 0};
+
+        VkImage depthImage = VK_NULL_HANDLE;
+        VkDeviceMemory depthMemory = VK_NULL_HANDLE;
+        VkImageView depthView = VK_NULL_HANDLE;
+        VkFormat depthFormat = VK_FORMAT_UNDEFINED;
+        Uint64 defaultRenderingCompatHash = 0;
+
+        BufferResource nullUbo;
+
+        TextureResource defaultTexture;
+        SamplerResource defaultSampler;
+
+        UnorderedMap<const BufferObject*, BufferResourceSet> buffers;
+        UnorderedMap<const ITextureObject*, TextureResource> textures;
+        UnorderedMap<const RenderbufferObject*, RenderbufferResource> renderbuffers;
+        UnorderedMap<const SamplerObject*, SamplerResource> samplers;
+        UnorderedMap<const ProgramObject*, ProgramResource> programs;
+        UnorderedMap<SharedPtr<MG_State::GLState::FramebufferObject>, SharedPtr<BackendFramebufferObject>> framebuffers;
+        Vector<PendingBufferCopyBatch> pendingBufferCopies;
+        Vector<StagingRing> stagingRings;
+
+        VkExtent2D activeExtent{0, 0};
+        Vector<VkImageView> activeColorViews;
+        Vector<VkImageLayout> activeColorLayouts;
+        Vector<VkFormat> activeColorFormats;
+        Vector<Int32> activeColorAttachmentIndices;
+        VkImageView activeDepthView = VK_NULL_HANDLE;
+        VkImageLayout activeDepthLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        VkImageView activeStencilView = VK_NULL_HANDLE;
+        VkImageLayout activeStencilLayout = VK_IMAGE_LAYOUT_UNDEFINED;
+        Uint32 activeSwapchainImageIndex = ~0u;
+        Uint32 activeColorAttachmentCount = 1;
+        Bool activeHasDepth = false;
+        VkFormat activeDepthFormat = VK_FORMAT_UNDEFINED;
+        VkFormat activeDepthAttachmentFormat = VK_FORMAT_UNDEFINED;
+        VkFormat activeStencilAttachmentFormat = VK_FORMAT_UNDEFINED;
+        Uint64 activeRenderingCompatHash = 0;
+        Uint64 activeRenderingConfigHash = 0;
+        SharedPtr<MG_State::GLState::FramebufferObject> activeStateFBO = nullptr;
+        SharedPtr<BackendFramebufferObject> activeBackendFBO = nullptr;
+        Bool activeIsDefault = true;
+        Bool activeDefaultColorWrites = true;
+
+        Uint64 recordingRenderingConfigHash = 0;
+        Bool cmdBufferBegun = false;
+
+        Bool recording = false;
+        Bool frameSubmitted = false;
+        FloatVec4 clearColor = {0.0f, 0.0f, 0.0f, 1.0f};
+        Float clearDepth = 1.0f;
+
+        UnorderedMap<SharedPtr<FramebufferObject>, PendingClearInfo> pendingClears;
+
+        Vector<VkImageLayout> swapchainImageLayouts;
+
+        PFN_vkCmdBeginRendering pfnCmdBeginRendering = nullptr;
+        PFN_vkCmdEndRendering pfnCmdEndRendering = nullptr;
+        PFN_vkWaitSemaphores pfnWaitSemaphores = nullptr;
+        VkSemaphore timelineSemaphore = VK_NULL_HANDLE;
+        Uint64 timelineValue = 0;
+    };
+
+    void Present();
+    void FrameBegin();
+    void InitVulkan(ANativeWindow* window);
+    const VulkanState& GetVulkanState();
+    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 Clear(GLbitfield mask);
+    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices);
+    void DrawArrays(GLenum mode, GLint first, GLsizei count);
+    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex);
+    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount);
+    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 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);
+    void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);
+    void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                     GLsizei instancecount, GLint basevertex, GLuint baseinstance);
+    void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                         GLsizei instancecount, GLint basevertex);
+    void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                           GLsizei instancecount, GLuint baseinstance);
+    void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount);
+    void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect);
+    void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
+                                         GLuint baseinstance);
+    void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+    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 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);
+} // namespace MobileGL::MG_Backend::DirectVulkanTMP::TmpImpl

MobileGL/MG_Backend/Init.cpp

@@ -52,6 +52,9 @@ namespace MobileGL::MG_Backend {
         case BackendType::DirectGLES:
             pActiveBackendObject = MakeUnique<DirectGLES::BackendObject_DirectGLES>();
             break;
+        case BackendType::DirectVulkanTMP:
+            pActiveBackendObject = MakeUnique<DirectVulkanTMP::BackendObject_DirectVulkanTMP>();
+            break;
         case BackendType::Unknown:
         default:
             MGLOG_W("Unknown backend type, defaulting to unknown backend");

MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp

@@ -7,8 +7,6 @@
 // End of Source File Header
 
 #include "GL_Getter.h"
-#include "GL/gl.h"
-#include "MG_Util/Debug/Log.h"
 #include <Config.h>
 #include <MGGitHash.h>
 #include <MG_State/GLState/Core.h>

MobileGL/MG_State/GLState/ProgramState/ProgramObject.cpp

@@ -110,6 +110,11 @@ namespace MobileGL {
                     AddDefaultFragmentShaderIfMissing();
                 }
 
+                std::sort(m_shaders.begin(), m_shaders.end(),
+                          [](SharedPtr<ShaderObject>& a, SharedPtr<ShaderObject>& b) {
+                              return a->GetShaderStage() < b->GetShaderStage();
+                          });
+
                 for (SizeT i = 0; i < m_shaders.size(); i++) {
                     shaderTypes[i] = MG_Util::ConvertShaderStageToGLEnum(m_shaders[i]->GetShaderStage());
                     MGLOG_D("ProgramObject %u: Preparing shader[%zu] stage %s at %p", m_externalIndex, i,

MobileGL/MG_State/GLState/ProgramState/ProgramObject.h

@@ -112,6 +112,13 @@ namespace MobileGL {
 
                 Vector<Vector<unsigned>>& GetGeneratedSpirv() { return m_generatedSpirv; }
 
+                Int GetShaderIndexByStage(ShaderStage stage) const {
+                    auto it = std::find_if(
+                        m_shaders.begin(), m_shaders.end(),
+                        [stage](const SharedPtr<ShaderObject>& shader) { return shader->GetShaderStage() == stage; });
+                    return it == m_shaders.end() ? -1 : std::distance(m_shaders.begin(), it);
+                }
+
                 Uint GetExternalIndex() const { return m_externalIndex; }
 
                 //                const UnorderedMap<String, Uint>& GetAttribLocationMap() const { return

MobileGL/MG_State/GLState/ProgramState/ShaderObject.cpp

@@ -53,4 +53,4 @@ namespace MobileGL {
             }
         } // namespace GLState
     } // namespace MG_State
-} // namespace MobileGL
+} // namespace MobileGL

MobileGL/MG_State/GLState/ProgramState/ShaderObject.h

@@ -17,6 +17,7 @@ namespace MobileGL {
         Geometry,
         Fragment,
         Compute,
+        ShaderStageCount,
         Unknown = -1
     };
 

MobileGL/MG_Test/Program/ProgramTest.cpp

@@ -983,7 +983,7 @@ TEST_F(ProgramTest, CompileAndLinkWithExplicitFragmentOut) {
 
     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;
     const char* needle = "layout(location = 7) out vec4 fragColor;";
     // for (auto spirv: spirvs) {

MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.cpp

@@ -0,0 +1,51 @@
+// MobileGL - MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.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 "Loader.h"
+
+namespace MobileGL::MG_Util::BackendLoader {
+    inline Version DecodeApiVersion(uint32_t version) {
+        return {(Int)VK_VERSION_MAJOR(version), (Int)VK_VERSION_MINOR(version), (Int)VK_VERSION_PATCH(version)};
+    }
+
+    inline std::string DecodeDriverVersion(uint32_t driverVersion) {
+        std::ostringstream oss;
+        oss << VK_VERSION_MAJOR(driverVersion) << "." << VK_VERSION_MINOR(driverVersion) << "."
+            << VK_VERSION_PATCH(driverVersion);
+        return oss.str();
+    }
+
+    Bool QueryVulkanCapabilities(MobileGL::MG_External::VulkanCapabilities& caps, VkPhysicalDevice physicalDevice) {
+        if (!physicalDevice) {
+            MGLOG_E("Invalid physical device handle");
+            return false;
+        }
+
+        VkPhysicalDeviceProperties props{};
+        vkGetPhysicalDeviceProperties(physicalDevice, &props);
+
+        if (props.apiVersion < VK_API_VERSION_1_1) {
+            MGLOG_E("Vulkan API version %u.%u.%u is not supported, requires at least 1.1",
+                    VK_VERSION_MAJOR(props.apiVersion), VK_VERSION_MINOR(props.apiVersion),
+                    VK_VERSION_PATCH(props.apiVersion));
+            return false;
+        }
+
+        VkPhysicalDeviceProperties2 props2{};
+        props2.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2;
+        vkGetPhysicalDeviceProperties2(physicalDevice, &props2);
+
+        const VkPhysicalDeviceProperties& p = props2.properties;
+        caps.VulkanAPIVersion = DecodeApiVersion(p.apiVersion);
+        caps.DeviceName = p.deviceName;
+        caps.DriverVersionString = DecodeDriverVersion(p.driverVersion);
+        caps.UniformBufferOffsetAlignment = static_cast<int>(p.limits.minUniformBufferOffsetAlignment);
+
+        return true;
+    }
+} // namespace MobileGL::MG_Util::BackendLoader

MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.h

@@ -0,0 +1,24 @@
+// MobileGL - MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.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 {
+    namespace MG_External {
+        struct VulkanCapabilities {
+            Version VulkanAPIVersion{1, 0, 0};
+            String DeviceName;
+            String DriverVersionString;
+            Int UniformBufferOffsetAlignment = 256;
+        };
+    } // namespace MG_External
+    namespace MG_Util::BackendLoader {
+        Bool QueryVulkanCapabilities(MobileGL::MG_External::VulkanCapabilities& caps, VkPhysicalDevice physicalDevice);
+    } // namespace MG_Util::BackendLoader
+} // namespace MobileGL

MobileGL/MG_Util/Converters/MGToMG/TextureEnumConverter.h

@@ -16,5 +16,6 @@ namespace MobileGL {
         TextureInternalFormat ConvertInternalFormatToSized(TextureInternalFormat internalformat,
                                                            TextureInputFormat format, TexturePixelDataType type);
         TextureInternalFormat ConvertInternalFormatToUnsized(TextureInternalFormat internalformat);
+
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Texture/TextureFormatProcessor.h

@@ -14,7 +14,6 @@ namespace MobileGL {
         NoNorm16 = 1 << 0,
         None = 0,
     };
-
     namespace MG_Util::TextureFormatProcessor {
         void NormalizePixelFormat(GLenum internalFormat, Flags<PixelFormatNormalizeOptionBit> options,
                                   GLenum* outInternalFormat, GLenum* outFormat, GLenum* outType);