[Chore] (Global): Disable debug. Set log target to all.

This reverts commit 92cd0f3a82.

.gitignore

@@ -3,3 +3,6 @@
 ################################################################################
 
 /build
+.cxx
+/.vs
+/out/build

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "3rdparty/DiligentCore"]
+	path = 3rdparty/DiligentCore
+	url = https://github.com/DiligentGraphics/DiligentCore.git

CMakeLists.txt

@@ -55,7 +55,9 @@ add_library(${CMAKE_PROJECT_NAME} SHARED
         MG/MG_GL/Implementations/EGL/VK/EGL_EMU.cpp
 
         MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.cpp
-        
+
+        MG/MG_GL/Implementations/EGL/Diligent/EGL_impl.cpp
+
         # MG_GL/State
         MG/MG_GL/State/Core/GLState.cpp
         
@@ -88,7 +90,7 @@ add_library(${CMAKE_PROJECT_NAME} SHARED
 
 target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE ./includes)
 
-target_link_libraries(${CMAKE_PROJECT_NAME}
+target_link_libraries(${CMAKE_PROJECT_NAME} PRIVATE
         ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libglslang.a
         ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libspirv-cross-c-shared.so
         #${CMAKE_SOURCE_DIR}/library/arm64-v8a/libshaderconv.so
@@ -110,15 +112,23 @@ target_link_libraries(${CMAKE_PROJECT_NAME}
         vulkan
 )
 
+add_subdirectory(3rdparty/DiligentCore)
+
 target_include_directories(MobileGL PUBLIC
         ${CMAKE_SOURCE_DIR}/include
-        )
+)
 
+target_link_libraries(MobileGL
+        PRIVATE
+        Diligent-Common
+        Diligent-GraphicsEngineOpenGL-shared
+        Diligent-GraphicsEngineVk-shared
+)
 
 if (PROFILING)
         find_package(Threads)
         include_directories(${CMAKE_SOURCE_DIR}/3rdparty/perfetto/sdk)
         add_library(perfetto STATIC ${CMAKE_SOURCE_DIR}/3rdparty/perfetto/sdk/perfetto.cc)
-        target_link_libraries(MobileGL perfetto ${CMAKE_THREAD_LIBS_INIT})
+        target_link_libraries(MobileGL PRIVATE perfetto ${CMAKE_THREAD_LIBS_INIT})
         target_compile_definitions(MobileGL PUBLIC PROFILING=1)
 endif()

MG/Constants.h

@@ -21,20 +21,20 @@
 #define MG_EXPORT extern "C" __attribute__((visibility("default")))
 #endif
 
-namespace ankerl {
+namespace MG_Global {
-    template <typename K, typename V>
+    template<typename K, typename V>
     using unordered_map = ankerl::unordered_dense::map<K, V>;
-    
+
-    template <typename T>
+    template<typename T>
     using unordered_set = ankerl::unordered_dense::set<T>;
 }
 
 namespace MG_Constants {
     namespace Common {
         inline constexpr int LOG_LEVEL_DEBUG     = 0x0010;
-        inline constexpr int LOG_LEVEL_WARN      = 0x0011;
+        inline constexpr int LOG_LEVEL_INFO      = 0x0011;
-        inline constexpr int LOG_LEVEL_ERROR     = 0x0012;
+        inline constexpr int LOG_LEVEL_WARN      = 0x0012;
-        inline constexpr int LOG_LEVEL_INFO      = 0x0013;
+        inline constexpr int LOG_LEVEL_ERROR     = 0x0013;
         inline constexpr int LOG_LEVEL_FATAL     = 0x0014;
 
 
@@ -43,10 +43,15 @@ namespace MG_Constants {
         inline constexpr int LOG_TARGET_FILE     = 0x02;
         inline constexpr int LOG_TARGET_ANDROID  = 0x04;  // Android logcat
         inline constexpr int LOG_TARGET_ALL      = LOG_TARGET_CONSOLE | LOG_TARGET_FILE | LOG_TARGET_ANDROID;
+
+        template <typename T>
+        bool Contains(T item, const std::vector<T> vec) {
+            return std::find(vec.begin(), vec.end(), item) != vec.end();
+        }
     }
     
     namespace Blend {
-        static const ankerl::unordered_set<GLenum> VALID_FACTORS = {
+        static const std::vector<GLenum> VALID_FACTORS = {
                 GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
                 GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
                 GL_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, GL_CONSTANT_COLOR, GL_ONE_MINUS_CONSTANT_COLOR,
@@ -55,51 +60,55 @@ namespace MG_Constants {
     }
     
     namespace Depth {
-        static const ankerl::unordered_set<GLenum> VALID_FUNCS = {
+        static const std::vector<GLenum> VALID_FUNCS = {
                 GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, GL_ALWAYS
         }; // OpenGL 3
     }
     
     namespace CommonState {
-        static const ankerl::unordered_set<GLenum> VALID_CAPS = {
+        static const std::vector<GLenum> VALID_CAPS = {
                 GL_BLEND, GL_DEPTH_TEST, GL_STENCIL_TEST, GL_SCISSOR_TEST, GL_CULL_FACE,
                 GL_POLYGON_OFFSET_FILL, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_COVERAGE
         }; // OpenGL 3
     }
     
     namespace Framebuffer {
-        static const ankerl::unordered_set<GLenum> VALID_ATTACHMENTS = {
+        static const std::vector<GLenum> VALID_ATTACHMENTS = {
                 GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT,
                 GL_STENCIL_ATTACHMENT, GL_DEPTH_STENCIL_ATTACHMENT
         }; // OpenGL 3
         
-        static const ankerl::unordered_set<GLenum> VALID_TARGETS = {
+        static const std::vector<GLenum> VALID_TARGETS = {
                 GL_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER
         }; // OpenGL 3
         
-        static const ankerl::unordered_set<GLenum> VALID_ACCESS = {
+        static const std::vector<GLenum> VALID_ACCESS = {
                 GL_READ_ONLY, GL_WRITE_ONLY, GL_READ_WRITE
         }; // OpenGL 3
     }
     
     namespace Buffer {
-        static const ankerl::unordered_set<GLenum> VALID_PARAM_NAMES = {
+        static const std::vector<GLenum> VALID_PARAM_NAMES = {
                 GL_BUFFER_ACCESS, GL_BUFFER_MAPPED, GL_BUFFER_SIZE, GL_BUFFER_USAGE
         }; // OpenGL 3
         
-        static const ankerl::unordered_set<GLenum> VALID_TARGETS = { 
+        static const std::vector<GLenum> VALID_TARGETS = {
                 GL_ARRAY_BUFFER, GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, GL_ELEMENT_ARRAY_BUFFER,
                 GL_PIXEL_PACK_BUFFER, GL_PIXEL_UNPACK_BUFFER, GL_TEXTURE_BUFFER,
                 GL_TRANSFORM_FEEDBACK_BUFFER,  GL_UNIFORM_BUFFER
         }; // OpenGL 3
         
-        static const ankerl::unordered_set<GLenum> VALID_ACCESS = {
+        static const std::vector<GLenum> VALID_ACCESS = {
                 GL_READ_ONLY, GL_WRITE_ONLY, GL_READ_WRITE
         }; // OpenGL 3
     }
 
+    namespace VertexArray {
+        constexpr uint32_t MAX_VERTEX_ATTRIBS = 32;
+    }
+
     namespace PixelStore {
-        static const ankerl::unordered_map<GLenum, GLint> DEFAULT_VALUES_MAP = {
+        static const MG_Global::unordered_map<GLenum, GLint> DEFAULT_VALUES_MAP = {
                 {GL_PACK_SWAP_BYTES,   GL_FALSE},
                 {GL_PACK_LSB_FIRST,    GL_FALSE},
                 {GL_PACK_ROW_LENGTH,   0},
@@ -118,7 +127,7 @@ namespace MG_Constants {
                 {GL_UNPACK_ALIGNMENT,  4}
         }; // OpenGL 3
         
-        static const ankerl::unordered_set<GLenum> VALID_PARAM_NAMES = {
+        static const std::vector<GLenum> VALID_PARAM_NAMES = {
                 GL_PACK_SWAP_BYTES, GL_PACK_LSB_FIRST, GL_PACK_ROW_LENGTH, GL_PACK_IMAGE_HEIGHT,
                 GL_PACK_SKIP_ROWS, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_IMAGES, GL_PACK_ALIGNMENT,
                 GL_UNPACK_SWAP_BYTES, GL_UNPACK_LSB_FIRST, GL_UNPACK_ROW_LENGTH,
@@ -132,18 +141,18 @@ namespace MG_Constants {
         inline const GLuint MAX_TEXTURE_UNITS = 80;
         const GLsizei MAX_TEXTURE_SIZE = 32768;
         const GLsizei MAX_ARRAY_LAYERS = 256;
-        inline const ankerl::unordered_set<GLenum> VALID_TARGETS = {
+        inline const std::vector<GLenum> VALID_TARGETS = {
                 GL_TEXTURE_2D, GL_PROXY_TEXTURE_2D, GL_TEXTURE_1D_ARRAY, GL_PROXY_TEXTURE_1D_ARRAY,
                 GL_TEXTURE_RECTANGLE, GL_PROXY_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP_POSITIVE_X,
                 GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 
                 GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, GL_PROXY_TEXTURE_CUBE_MAP
         }; // OpenGL 3
 
-        inline const ankerl::unordered_set<GLenum> VALID_FORMATS = {
+        inline const std::vector<GLenum> VALID_FORMATS = {
                 GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA, GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL
         }; // OpenGL 3
 
-        inline const ankerl::unordered_set<GLenum> VALID_INTERNAL_FORMATS = {
+        inline const std::vector<GLenum> VALID_INTERNAL_FORMATS = {
                 GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA, GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL,
                 GL_RGBA32F, GL_RGBA32I, GL_RGBA32UI, GL_RGBA16, GL_RGBA16F, GL_RGBA16I, 
                 GL_RGBA16UI, GL_RGBA8, GL_RGBA8UI, GL_SRGB8_ALPHA8, GL_RGB10_A2, GL_RGB10_A2UI, 
@@ -158,7 +167,7 @@ namespace MG_Constants {
                 GL_DEPTH32F_STENCIL8, GL_DEPTH24_STENCIL8
         }; // OpenGL 3
 
-        inline const ankerl::unordered_set<GLenum> VALID_TYPES = {
+        inline const std::vector<GLenum> VALID_TYPES = {
                 GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, 
                 GL_FLOAT, GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV, GL_UNSIGNED_SHORT_5_6_5, 
                 GL_UNSIGNED_SHORT_5_6_5_REV, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV,
@@ -166,14 +175,14 @@ namespace MG_Constants {
                 GL_UNSIGNED_INT_8_8_8_8_REV, GL_UNSIGNED_INT_10_10_10_2, GL_UNSIGNED_INT_2_10_10_10_REV
         }; // OpenGL 3
 
-        inline const ankerl::unordered_set<GLenum> VALID_TEXTURE_PARAM_NAMES = {
+        inline const std::vector<GLenum> VALID_TEXTURE_PARAM_NAMES = {
                 GL_TEXTURE_BASE_LEVEL, GL_TEXTURE_COMPARE_FUNC, GL_TEXTURE_COMPARE_MODE, GL_TEXTURE_MIN_FILTER, 
                 GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_SWIZZLE_R, GL_TEXTURE_SWIZZLE_G,
                 GL_TEXTURE_SWIZZLE_B, GL_TEXTURE_SWIZZLE_A, GL_TEXTURE_SWIZZLE_RGBA, GL_TEXTURE_WRAP_S,
                 GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, GL_TEXTURE_LOD_BIAS, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_BORDER_COLOR
         }; // OpenGL 3
         
-        inline const ankerl::unordered_set<GLenum> VALID_QUERY_LEVEL_PROPERTY_PARAM_NAMES = {
+        inline const std::vector<GLenum> VALID_QUERY_LEVEL_PROPERTY_PARAM_NAMES = {
                 GL_TEXTURE_WIDTH, GL_TEXTURE_HEIGHT, GL_TEXTURE_DEPTH, GL_TEXTURE_INTERNAL_FORMAT,
                 GL_TEXTURE_RED_SIZE, GL_TEXTURE_GREEN_SIZE, GL_TEXTURE_BLUE_SIZE, GL_TEXTURE_ALPHA_SIZE,
                 GL_TEXTURE_DEPTH_SIZE, GL_TEXTURE_COMPRESSED, GL_TEXTURE_COMPRESSED_IMAGE_SIZE
@@ -181,9 +190,15 @@ namespace MG_Constants {
     }
 
     namespace Backend {
-#define BACKEND_VULKAN 0x0015
+#define BACKEND_VULKAN   0x0015
-#define BACKEND_METAL  0x0016
+#define BACKEND_METAL    0x0016
-#define BACKEND_GLES   0x0017
+#define BACKEND_GLES     0x0017
+#define BACKEND_DILIGENT 0x0018
+
+inline const int BACKEND_DILIGENT_VULKAN = 0x0020;
+inline const int BACKEND_DILIGENT_METAL  = 0x0021; // not ready currently
+inline const int BACKEND_DILIGENT_OPENGL = 0x0022;
+
     }
     
     inline const char* RenderName = "MobileGL";

MG/Includes.h

@@ -1,85 +1,9 @@
 //
 // Created by BZLZHH on 2025/3/15.
 //
+#pragma once
 
-#include "Constants.h"
+#define BACKEND_TYPE BACKEND_DILIGENT
-#define BACKEND_TYPE BACKEND_GLES
-#include "Global.h"
-#ifndef MOBILEGL_GLES_LOADER_H
-#include "MG_GL/BackendLoader/GLES/Loader.h"
-#endif
-#ifndef MOBILEGL_GL_FRAMEBUFFER_H
-#include "MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.h"
-#endif
-#ifndef MOBILEGL_GL_GETTER_H
-#include "MG_GL/Implementations/GL/Getter/GL_Getter.h"
-#endif
-#ifndef MOBILEGL_BACKENDINFO_H
-#include "MG_GL/Implementations/GL/Getter/BackendInfo.h"
-#endif
-#ifndef MOBILEGL_GL_BUFFER_H
-#include "MG_GL/Implementations/GL/Buffer/GL_Buffer.h"
-#endif
-#ifndef MOBILEGL_GL_DRAWING_H
-#include "MG_GL/Implementations/GL/Drawing/GL_Drawing.h"
-#endif
-#ifndef MOBILEGL_GL_PROGRAM_H
-#include "MG_GL/Implementations/GL/Program/GL_Program.h"
-#endif
-#ifndef MOBILEGL_GL_TEXTURE_H
-#include "MG_GL/Implementations/GL/Texture/GL_Texture.h"
-#endif
-#ifndef MOBILEGL_GL_VERTEXARRAY_H
-#include "MG_GL/Implementations/GL/VertexArray/GL_VertexArray.h"
-#endif
-#ifndef MOBILEGL_GLSTATE_H
-#include "MG_GL/State/Core/GLState.h"
-#endif
-#ifndef MOBILEGL_COMMONSTATE_H
-#include "MG_GL/State/Common/CommonState.h"
-#endif
-#ifndef MOBILEGL_TEXTURESTATE_H
-#include "MG_GL/State/Texture/TextureState.h"
-#endif
-#ifndef MOBILEGL_VERTEXARRAYSTATE_H
-#include "MG_GL/State/VertexArray/VertexArrayState.h"
-#endif
-#ifndef MOBILEGL_BUFFERSTATE_H
-#include "MG_GL/State/Buffer/BufferState.h"
-#endif
-#ifndef MOBILEGL_SHADEROBJECT_H
-#include "MG_GL/State/Program/ShaderObject.h"
-#endif
-#ifndef MOBILEGL_PROGRAMSTATE_H
-#include "MG_GL/State/Program/ProgramState.h"
-#endif
-#ifndef MOBILEGL_FRAMEBUFFERSTATE_H
-#include "MG_GL/State/Framebuffer/FramebufferState.h"
-#endif
-#ifndef MOBILEGL_LOOKUP_H
-#include "MG_GL/Implementations/GLX/LookUp/LookUp.h"
-#endif
-#ifndef MOBILEGL_DEBUG_H
-#include "MG_UTIL/Debug/Debug.h"
-#endif
-#ifndef MOBILEGL_GLSLTOOL_H
-#include "MG_UTIL/Program/GLSLTool.h"
-#endif
-#ifndef MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "MG_UTIL/Program/DebugTool.h"
-#endif
-#ifndef MOBILEGL_GL_COMMON_H
-#include "MG_GL/Implementations/GL/Common/GL_Common.h"
-#endif
-#ifndef MOBILEGL_EGL_VK_EMU_H
-#include "MG_GL/Implementations/EGL/VK/EGL_EMU.h"
-#endif
-#ifndef MOBILEGL_EGL_GLES_EGL_WRAP_H
-#include "MG_GL/Implementations/EGL/GLES/EGL_WRAP.h"
-#endif
-#ifndef MOBILEGL_TESTDRAWING_H
-#include "MG_RHI/GLES/Test/TestDrawing.h"
-#endif
 
 #include <cstring>
 #include <iostream>
@@ -90,6 +14,7 @@
 #include <string>
 #include <map>
 #include <vector>
+#include <cctype>
 #include <stdexcept>
 #include <atomic>
 #include <regex>
@@ -101,6 +26,7 @@
 #include <unordered_map>
 #include <queue>
 #include <format>
+#include <memory>
 #include <glslang/Public/ShaderLang.h>
 #include <glslang/Include/Types.h>
 #include <glslang/Public/ShaderLang.h>
@@ -112,6 +38,7 @@
 #include <GLES3/gl32.h>
 
 #include "MG_Include/UncertainBool.hpp"
+#include "MG_Include/IndexGenerator.hpp"
 
 #ifdef _WIN32
 #include <Windows.h>
@@ -138,3 +65,45 @@
 #include <EGL/egl.h>
 #include <GL/gl.h>
 #include <GL/glext.h>
+
+#if BACKEND_TYPE == BACKEND_DILIGENT
+#include "EngineFactory.h"
+#include "EngineFactoryOpenGL.h"
+#include "EngineFactoryVk.h"
+#include "RefCntAutoPtr.hpp"
+
+#include "PipelineState.h"
+#include "GraphicsTypes.h"
+#include "DeviceContext.h"
+#endif
+
+
+#include "Constants.h"
+#include "Global.h"
+#include "MG_GL/Implementations/EGL/Diligent/DiligentConfig.h"
+#include "MG_GL/BackendLoader/GLES/Loader.h"
+#include "MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.h"
+#include "MG_GL/Implementations/GL/Getter/GL_Getter.h"
+#include "MG_GL/Implementations/GL/Getter/BackendInfo.h"
+#include "MG_GL/Implementations/GL/Buffer/GL_Buffer.h"
+#include "MG_GL/Implementations/GL/Drawing/GL_Drawing.h"
+#include "MG_GL/Implementations/GL/Program/GL_Program.h"
+#include "MG_GL/Implementations/GL/Texture/GL_Texture.h"
+#include "MG_GL/Implementations/GL/VertexArray/GL_VertexArray.h"
+#include "MG_GL/State/Common/CommonState.h"
+#include "MG_GL/State/Texture/TextureState.h"
+#include "MG_GL/State/VertexArray/VertexArrayState.h"
+#include "MG_GL/State/Buffer/BufferState.h"
+#include "MG_GL/State/Program/ShaderObject.h"
+#include "MG_GL/State/Program/ProgramState.h"
+#include "MG_GL/State/Framebuffer/FramebufferState.h"
+#include "MG_GL/State/Core/GLState.h"
+#include "MG_GL/Implementations/EGL/Diligent/EGL_impl.h"
+#include "MG_GL/Implementations/GLX/LookUp/LookUp.h"
+#include "MG_UTIL/Debug/Debug.h"
+#include "MG_UTIL/Program/GLSLTool.h"
+#include "MG_UTIL/Program/DebugTool.h"
+#include "MG_GL/Implementations/GL/Common/GL_Common.h"
+#include "MG_GL/Implementations/EGL/VK/EGL_EMU.h"
+#include "MG_GL/Implementations/EGL/GLES/EGL_WRAP.h"
+#include "MG_RHI/GLES/Test/TestDrawing.h"

MG/Init.cpp

@@ -8,7 +8,9 @@ void MG_Initialize() {
     MG_Util::Debug::LogInit();
     MG_Util::Debug::LogI("MobileGL Initializing...");
     MG_State::Init();
+#if BACKEND_TYPE == BACKEND_GLES
     MG_GL::BackendLoader::Init();
+#endif
 }
 
 void MG_Destroy() {

MG/MG_GL/BackendLoader/GLES/Loader.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/4/26.
 //
 
-#include "Loader.h"
+#include "../../../Includes.h"
 
 #if BACKEND_TYPE == BACKEND_GLES
 

MG/MG_GL/BackendLoader/GLES/Loader.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GLES_LOADER_H
 #define MOBILEGL_GLES_LOADER_H
 
-#include "../../../Includes.h"
-
 #if BACKEND_TYPE == BACKEND_GLES
 
 #define APIENTRY_GLES

MG/MG_GL/Implementations/EGL/Diligent/DiligentConfig.h

@@ -0,0 +1,9 @@
+//
+// Created by BZLZHH on 2025/5/25.
+//
+
+#pragma once
+
+namespace MG_Diligent {
+    inline const int DILIGENT_BACKEND_TYPE = MG_Constants::Backend::BACKEND_DILIGENT_VULKAN;
+}

MG/MG_GL/Implementations/EGL/Diligent/EGL_impl.h

@@ -0,0 +1,264 @@
+//
+// Created by Swung 0x48 on 2025-05-18.
+//
+
+#ifndef MOBILEGL_DILIGENT_EGL_IMPL_H
+#define MOBILEGL_DILIGENT_EGL_IMPL_H
+
+#if BACKEND_TYPE == BACKEND_DILIGENT
+
+namespace MG_Diligent {
+    extern Diligent::IRenderDevice*      g_pDevice;
+    extern Diligent::IDeviceContext*     g_pContext;
+    extern Diligent::ISwapChain*         g_pSwapChain;
+    extern MG_Global::unordered_map<GLuint, Diligent::IBuffer*>         g_BufferMap;
+    extern MG_Global::unordered_map<GLuint, Diligent::ITexture*>        g_TextureMap;
+    extern MG_Global::unordered_map<GLuint, Diligent::ITextureView*>    g_TextureViewMap;
+    
+    struct GLFramebufferInfo
+    {
+//        Diligent::IFramebuffer*                     pFramebuffer   = nullptr;
+//        Diligent::IRenderPass*                      pRenderPass   = nullptr;
+        std::vector<Diligent::ITextureView*>        ColorRTVs;
+        Diligent::ITextureView*                     pDepthStencilRTV = nullptr;
+        Diligent::TEXTURE_FORMAT                    DepthStencilFormat = Diligent::TEX_FORMAT_UNKNOWN;
+        bool                                        HasDepthStencil = false;
+        std::vector<Diligent::OptimizedClearValue>  ClearValues;
+        // ...
+    };
+    extern MG_Global::unordered_map<GLuint, GLFramebufferInfo>          g_FramebufferMap;
+    extern MG_Global::unordered_map<GLuint, Diligent::IShader*>         g_ShaderMap;
+    struct GLProgramInfo
+    {
+        GLuint id;
+        std::vector<Diligent::IShader*> AttachedShaders;
+        std::vector<GLuint> AttachedShadersID;
+        Diligent::IPipelineState* pPipelineState = nullptr;
+        Diligent::IShaderResourceBinding* pResourceBinding = nullptr;
+        uint64_t psoStateHash = 0;
+        bool psoDirty = true;
+        std::vector<Diligent::LayoutElement> inputLayout;
+        GLuint DefaultFBO = 0;
+        ProgramObject programObj;
+
+        // Uniform names, in the order of their index in uniform buffer
+        std::vector<std::string> uniformBufferNames;
+
+        Diligent::IBuffer* pDefaultUBO = nullptr;
+
+        std::unordered_map<std::string, Diligent::SHADER_TYPE> uniformStages;
+        std::unordered_map<std::string, size_t> uniformOffsets;
+        // ...
+    };
+    extern MG_Global::unordered_map<GLuint, GLProgramInfo>              g_ProgramMap;
+    
+    extern MG_Global::unordered_map<GLuint, Diligent::ISampler*> g_SamplerMap;
+    extern MG_Global::unordered_map<GLuint, Diligent::IBuffer*> g_UniformBufferMap;
+    extern Diligent::IBuffer* g_TriangleFanIndexBuffer;
+
+    inline Diligent::PRIMITIVE_TOPOLOGY GLPrimitiveTopologyToDiligent(GLenum Topology)
+    {
+        switch (Topology)
+        {
+            case GL_TRIANGLE_STRIP:
+                return Diligent::PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
+            case GL_TRIANGLES:
+                return Diligent::PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+            case GL_TRIANGLE_FAN:
+                return Diligent::PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+            // TODO: Handle other topologies
+            default:
+                return Diligent::PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
+        }
+    }
+
+    class PipelineStateManager {
+    private:
+        struct PSOKey {
+            uint64_t programHash;
+            uint64_t stateHash;
+
+            bool operator==(const PSOKey &other) const {
+                return programHash == other.programHash && stateHash == other.stateHash;
+            }
+        };
+
+        struct PSOKeyHash {
+            size_t operator()(const PSOKey &key) const {
+                return std::hash<uint64_t>()(key.programHash) ^
+                       std::hash<uint64_t>()(key.stateHash);
+            }
+        };
+
+        std::unordered_map<PSOKey, Diligent::IPipelineState *, PSOKeyHash> psoCache;
+
+    public:
+        Diligent::IPipelineState *GetOrCreatePSO(
+                GLuint program,
+                GLProgramInfo &programInfo,
+                CommonState &commonState,
+                VertexArrayState &vaState,
+                GLFramebufferInfo& fbInfo,
+                GLenum primitiveTopology);
+
+        void MarkPSODirty(GLuint program);
+
+        void ReleasePSO(GLuint program);
+
+    private:
+        Diligent::FILTER_TYPE ConvertGLFilter(GLenum filter) {
+            switch (filter) {
+                case GL_NEAREST:
+                case GL_NEAREST_MIPMAP_NEAREST:
+                case GL_NEAREST_MIPMAP_LINEAR:
+                    return Diligent::FILTER_TYPE_POINT;
+                case GL_LINEAR:
+                case GL_LINEAR_MIPMAP_NEAREST:
+                case GL_LINEAR_MIPMAP_LINEAR:
+                    return Diligent::FILTER_TYPE_LINEAR;
+                default:
+                    return Diligent::FILTER_TYPE_LINEAR;
+            }
+        }
+
+        Diligent::FILTER_TYPE ConvertGLMipFilter(GLenum filter) {
+            switch (filter) {
+                case GL_NEAREST_MIPMAP_NEAREST:
+                case GL_LINEAR_MIPMAP_NEAREST:
+                    return Diligent::FILTER_TYPE_POINT;
+                case GL_NEAREST_MIPMAP_LINEAR:
+                case GL_LINEAR_MIPMAP_LINEAR:
+                    return Diligent::FILTER_TYPE_LINEAR;
+                case GL_NEAREST:
+                case GL_LINEAR:
+                    return Diligent::FILTER_TYPE_LINEAR;
+                default:
+                    return Diligent::FILTER_TYPE_LINEAR;
+            }
+        }
+
+        Diligent::TEXTURE_ADDRESS_MODE ConvertGLWrapMode(GLenum wrap) {
+            switch (wrap) {
+                case GL_REPEAT:
+                    return Diligent::TEXTURE_ADDRESS_WRAP;
+                case GL_MIRRORED_REPEAT:
+                    return Diligent::TEXTURE_ADDRESS_MIRROR;
+                case GL_CLAMP_TO_EDGE:
+                    return Diligent::TEXTURE_ADDRESS_CLAMP;
+                case GL_CLAMP_TO_BORDER:
+                    return Diligent::TEXTURE_ADDRESS_BORDER;
+                case GL_MIRROR_CLAMP_TO_EDGE:
+                    return Diligent::TEXTURE_ADDRESS_MIRROR_ONCE;
+                default:
+                    return Diligent::TEXTURE_ADDRESS_WRAP;
+            }
+        }
+
+        Diligent::BLEND_FACTOR ConvertGLBlendFactor(GLenum factor) {
+            switch (factor) {
+                case GL_ZERO:
+                    return Diligent::BLEND_FACTOR_ZERO;
+                case GL_ONE:
+                    return Diligent::BLEND_FACTOR_ONE;
+                case GL_SRC_COLOR:
+                    return Diligent::BLEND_FACTOR_SRC_COLOR;
+                case GL_ONE_MINUS_SRC_COLOR:
+                    return Diligent::BLEND_FACTOR_INV_SRC_COLOR;
+                case GL_DST_COLOR:
+                    return Diligent::BLEND_FACTOR_DEST_COLOR;
+                case GL_ONE_MINUS_DST_COLOR:
+                    return Diligent::BLEND_FACTOR_INV_DEST_COLOR;
+                case GL_SRC_ALPHA:
+                    return Diligent::BLEND_FACTOR_SRC_ALPHA;
+                case GL_ONE_MINUS_SRC_ALPHA:
+                    return Diligent::BLEND_FACTOR_INV_SRC_ALPHA;
+                case GL_DST_ALPHA:
+                    return Diligent::BLEND_FACTOR_DEST_ALPHA;
+                case GL_ONE_MINUS_DST_ALPHA:
+                    return Diligent::BLEND_FACTOR_INV_DEST_ALPHA;
+                default:
+                    return Diligent::BLEND_FACTOR_ONE;
+            }
+        }
+
+        Diligent::COMPARISON_FUNCTION ConvertGLDepthFunc(GLenum func) {
+            switch (func) {
+                case GL_LESS:
+                    return Diligent::COMPARISON_FUNC_LESS;
+                case GL_LEQUAL:
+                    return Diligent::COMPARISON_FUNC_LESS_EQUAL;
+                case GL_GREATER:
+                    return Diligent::COMPARISON_FUNC_GREATER;
+                case GL_GEQUAL:
+                    return Diligent::COMPARISON_FUNC_GREATER_EQUAL;
+                case GL_EQUAL:
+                    return Diligent::COMPARISON_FUNC_EQUAL;
+                case GL_NOTEQUAL:
+                    return Diligent::COMPARISON_FUNC_NOT_EQUAL;
+                case GL_ALWAYS:
+                    return Diligent::COMPARISON_FUNC_ALWAYS;
+                case GL_NEVER:
+                    return Diligent::COMPARISON_FUNC_NEVER;
+                default:
+                    return Diligent::COMPARISON_FUNC_LESS;
+            }
+        }
+
+        uint64_t CalculateStateHash(
+                CommonState &commonState,
+                VertexArrayState &vaState,
+                GLFramebufferInfo& fbInfo,
+                GLenum primitiveTopology);
+
+        void ConfigurePSO(
+                Diligent::GraphicsPipelineStateCreateInfo &PSOCreateInfo,
+                GLProgramInfo &programInfo,
+                CommonState &commonState,
+                VertexArrayState &vaState,
+                GLFramebufferInfo& fbInfo,
+                GLenum primitiveTopology);
+
+        void ConfigureResourceLayout(
+                Diligent::GraphicsPipelineStateCreateInfo& PSOCreateInfo,
+                GLProgramInfo& programInfo);
+    };
+
+    extern PipelineStateManager g_PSOManager;
+
+    void BuildInputLayout(GLuint program, VertexArrayState& vaState, 
+                          std::vector<Diligent::LayoutElement>& inputLayout);
+
+    extern bool initialized;
+//    extern bool IsInRenderPass;
+    extern GLuint g_NextResourceId;
+}
+
+namespace MG_EGL::Diligent {
+
+    EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint* attrib_list);
+    EGLBoolean eglChooseConfig(EGLDisplay dpy, const EGLint* attrib_list, EGLConfig* configs, EGLint config_size, EGLint* num_config);
+    EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext shareCtx, const EGLint* attrib_list);
+    EGLBoolean eglInitialize(EGLDisplay dpy, EGLint* major, EGLint* minor);
+    EGLDisplay eglGetDisplay(NativeDisplayType display);
+    EGLint eglGetError();
+    EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
+    EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx);
+    EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface);
+    EGLBoolean eglTerminate(EGLDisplay dpy);
+    EGLBoolean eglReleaseThread(void);
+    EGLContext eglGetCurrentContext(void);
+    EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
+    EGLBoolean eglBindAPI(EGLenum api);
+    EGLSurface eglGetCurrentSurface(EGLint readdraw);
+    EGLBoolean eglQuerySurface(EGLDisplay display, EGLSurface surface, EGLint attribute, EGLint *value);
+    EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval);
+    EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw);
+    EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
+}
+
+MG_EXPORT __eglMustCastToProperFunctionPointerType eglGetProcAddress(const char *procname);
+
+#endif
+
+
+#endif //MOBILEGL_DILIGENT_EGL_IMPL_H

MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/4/26.
 //
 
-#include "EGL_WRAP.h"
+#include "../../../../Includes.h"
 
 #if BACKEND_TYPE == BACKEND_GLES
 
@@ -48,7 +48,12 @@ MG_EXPORT EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint
 
 MG_EXPORT EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list) {
     LOAD_EGL(eglCreateWindowSurface)
-    return egl_eglCreateWindowSurface(dpy, config, win, attrib_list);
+    EGLSurface surface = egl_eglCreateWindowSurface(dpy, config, win, attrib_list);
+
+//    auto* pFactoryOpenGL = GetEngineFactoryOpenGL();
+
+
+    return surface;
 }
 
 MG_EXPORT EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) {

MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.h

@@ -5,10 +5,10 @@
 #ifndef MOBILEGL_EGL_GLES_EGL_WRAP_H
 #define MOBILEGL_EGL_GLES_EGL_WRAP_H
 
-#include "../../../../Includes.h"
-
 #if BACKEND_TYPE == BACKEND_GLES
 
+
+
 #endif
 
 #endif //MOBILEGL_EGL_GLES_EGL_WRAP_H

MG/MG_GL/Implementations/EGL/VK/EGL_EMU.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/3/30.
 //
 
-#include "EGL_EMU.h"
+#include "../../../../Includes.h"
 
 #if BACKEND_TYPE == BACKEND_VULKAN
 
@@ -11,9 +11,9 @@ std::atomic<uintptr_t> g_nextSurfaceId{1};
 EGLenum g_currentAPI = EGL_OPENGL_ES_API;
 
 std::mutex g_globalMutex;
-ankerl::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
+MG_Global::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
-ankerl::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
+MG_Global::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
-ankerl::unordered_map<EGLContext, VulkanContext> g_contexts;
+MG_Global::unordered_map<EGLContext, VulkanContext> g_contexts;
 EGLint g_lastError = EGL_SUCCESS;
 
 thread_local EGLContext tls_currentContext = EGL_NO_CONTEXT;

MG/MG_GL/Implementations/EGL/VK/EGL_EMU.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_EGL_VK_EMU_H
 #define MOBILEGL_EGL_VK_EMU_H
 
-#include "../../../../Includes.h"
-
 #if BACKEND_TYPE == BACKEND_VULKAN
 
 struct EGLInternalConfig {
@@ -69,9 +67,9 @@ extern std::atomic<uintptr_t> g_nextSurfaceId;
 extern EGLenum g_currentAPI;
 
 extern std::mutex g_globalMutex;
-extern ankerl::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
+extern MG_Global::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
-extern ankerl::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
+extern MG_Global::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
-extern ankerl::unordered_map<EGLContext, VulkanContext> g_contexts;
+extern MG_Global::unordered_map<EGLContext, VulkanContext> g_contexts;
 extern EGLint g_lastError;
 
 extern thread_local EGLContext tls_currentContext;

MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.cpp

@@ -2,9 +2,18 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Buffer.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+    Diligent::VALUE_TYPE ConvertGLIndexTypeToDiligent(GLenum type) {
+        switch (type) {
+            case GL_UNSIGNED_BYTE: return Diligent::VT_UINT8;
+            case GL_UNSIGNED_SHORT: return Diligent::VT_UINT16;
+            case GL_UNSIGNED_INT: return Diligent::VT_UINT32;
+            default: return Diligent::VT_UNDEFINED;
+        }
+    }
+    
     void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
                          GLbitfield access) {
         MG_Util::Debug::LogD("glMapBufferRange, target: %s, offset: %lld, length: %lld, access: 0x%X",
@@ -31,6 +40,38 @@ namespace MG_GL::GL {
                              static_cast<long long>(length));
         GLenum result = MG_State::SyncBufferMemory(target, offset, length);
         if (result == GL_NO_ERROR) {
+            GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
+            if (buffer == 0) return;
+
+            auto& bufferObj = *MG_State_T::bufferState->GetBufferObject(buffer);
+            if (!bufferObj.isMapped) return;
+
+            size_t start = static_cast<size_t>(offset);
+            size_t end = start + static_cast<size_t>(length);
+
+            auto it = MG_Diligent::g_BufferMap.find(buffer);
+            if (it == MG_Diligent::g_BufferMap.end())
+                return;
+            Diligent::IBuffer* pBuffer = it->second;
+            if (pBuffer && bufferObj.data.size() >= end) {
+                const auto& Desc = pBuffer->GetDesc();
+                if (Desc.Usage == Diligent::USAGE_STAGING || Desc.Usage == Diligent::USAGE_DYNAMIC || Desc.Usage == Diligent::USAGE_UNIFIED) {
+                    void * data;
+                    MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE,
+                                                       Diligent::MAP_FLAG_DISCARD, data);
+
+                    if (data) {
+                        void* dst = static_cast<char*>(data) + offset;
+                        const void* src = bufferObj.data.data() + offset;
+                        memcpy(dst, src, length);
+
+                        MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
+                    }
+                } else {
+                    // For USAGE_DEFAULT or USAGE_IMMUTABLE, use UpdateBuffer
+                    MG_Diligent::g_pContext->UpdateBuffer(pBuffer, static_cast<Diligent::Uint64>(offset), static_cast<Diligent::Uint64>(length), bufferObj.data.data() + offset, Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
+                }
+            }
             return;
         }
         MG_State::SetError(result);
@@ -50,6 +91,25 @@ namespace MG_GL::GL {
                              static_cast<long long>(size));
         GLenum result = MG_State::CopyBufferRange(readTarget, writeTarget, readOffset, writeOffset, size);
         if (result == GL_NO_ERROR) {
+            GLuint srcBuffer = MG_State_T::bufferState->GetCurrentBinding(readTarget);
+            GLuint dstBuffer = MG_State_T::bufferState->GetCurrentBinding(writeTarget);
+
+            if (srcBuffer == 0 || dstBuffer == 0) return;
+            auto itsrc = MG_Diligent::g_BufferMap.find(srcBuffer);
+            auto itdst = MG_Diligent::g_BufferMap.find(dstBuffer);
+            if (itsrc == MG_Diligent::g_BufferMap.end() || itdst == MG_Diligent::g_BufferMap.end()) return;
+
+            Diligent::IBuffer* pSrcBuffer = itsrc->second;
+            Diligent::IBuffer* pDstBuffer = itdst->second;
+
+            if (pSrcBuffer && pDstBuffer) {
+                MG_Diligent::g_pContext->CopyBuffer(pSrcBuffer, static_cast<Diligent::Uint64>(readOffset), 
+                                                    Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION,
+                                                    pDstBuffer, static_cast<Diligent::Uint64>(writeOffset),
+                                                    static_cast<Diligent::Uint64>(size),
+                                                    Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
+            }
+            
             return;
         }
         MG_State::SetError(result);
@@ -78,6 +138,31 @@ namespace MG_GL::GL {
             MG_Util::Debug::LogE("glUnmapBuffer failed: %s", MG_Util::Debug::GLEnumToString(err));
             return GL_FALSE;
         }
+        
+        GLuint buffer = MG_State_T::bufferState->currentBindings_[target];
+        auto& bufferObj = *MG_State_T::bufferState->GetBufferObject(buffer);
+
+        auto it = MG_Diligent::g_BufferMap.find(buffer);
+        if (it == MG_Diligent::g_BufferMap.end())
+            return GL_FALSE;
+        Diligent::IBuffer* pBuffer = it->second;
+        if (pBuffer) {
+            const auto& Desc = pBuffer->GetDesc();
+            if (Desc.Usage == Diligent::USAGE_STAGING || Desc.Usage == Diligent::USAGE_DYNAMIC || Desc.Usage == Diligent::USAGE_UNIFIED) {
+                void * data;
+                MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE,
+                                                   Diligent::MAP_FLAG_DISCARD, data);
+
+                if (data) {
+                    memcpy(data, bufferObj.data.data(), bufferObj.data.size());
+                    MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
+                }
+            } else {
+                // For USAGE_DEFAULT or USAGE_IMMUTABLE, use UpdateBuffer
+                MG_Diligent::g_pContext->UpdateBuffer(pBuffer, 0, bufferObj.data.size(), bufferObj.data.data(), Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);    
+            }
+        }
+        
         MG_Util::Debug::LogD("glUnmapBuffer succeeded");
         return GL_TRUE;
     }
@@ -112,8 +197,69 @@ namespace MG_GL::GL {
         MG_Util::Debug::LogD("glBufferData, target: %s, size: %zd, data: %p, usage: %s",
                              MG_Util::Debug::GLEnumToString(target), size, data, MG_Util::Debug::GLEnumToString(usage));
         GLenum result = MG_State::CommitBufferStorage(target, size, data, usage);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
+            if (buffer == 0) return;
+            auto& bufferObj = *MG_State_T::bufferState->GetBufferObject(buffer);
+            if (bufferObj.isDynamic) return; // Dynamic buffer should be created by glDraw*
+            if (size <= 0) return; // ignore 0-sized reallocation
+
+            bufferObj.dirty = false;
+
+            auto it = MG_Diligent::g_BufferMap.find(buffer);
+            if (it == MG_Diligent::g_BufferMap.end())
+                return;
+
+            Diligent::IBuffer*& pBuffer = it->second;
+
+            Diligent::BufferDesc BuffDesc;
+            std::string name;
+            BuffDesc.Size = static_cast<Diligent::Uint64>(size);
+
+            switch (target) {
+                case GL_ARRAY_BUFFER:
+//                    BuffDesc.BindFlags = Diligent::BIND_VERTEX_BUFFER;
+                    name += std::format("VBO {}", buffer);
+                    break;
+                case GL_ELEMENT_ARRAY_BUFFER:
+//                    BuffDesc.BindFlags = Diligent::BIND_INDEX_BUFFER;
+                    name += std::format("IBO {}", buffer);
+                    break;
+                case GL_UNIFORM_BUFFER:
+//                    BuffDesc.BindFlags = Diligent::BIND_UNIFORM_BUFFER;
+                    name += std::format("UBO {}", buffer);
+                    break;
+                default:
+                    BuffDesc.BindFlags = Diligent::BIND_SHADER_RESOURCE;
+                    name += std::format("SRV {}", buffer);
+                    break;
+            }
+
+            BuffDesc.BindFlags |= Diligent::BIND_VERTEX_BUFFER |
+                                  Diligent::BIND_INDEX_BUFFER |
+                                  Diligent::BIND_UNIFORM_BUFFER;
+            BuffDesc.Name = name.c_str();
+            BuffDesc.Usage = Diligent::USAGE_DEFAULT;
+
+            if (!pBuffer || (pBuffer && pBuffer->GetDesc().Size != bufferObj.data.size()) ) {
+                if (pBuffer) {
+                    pBuffer->Release();
+                    pBuffer = nullptr;
+                }
+                Diligent::BufferData BuffData;
+                // Initial data must not be null for immutable buffers
+                BuffData.pData = BuffDesc.Usage != Diligent::USAGE_IMMUTABLE ? nullptr : bufferObj.data.data();
+                BuffData.DataSize = static_cast<Diligent::Uint64>(size);
+                MG_Diligent::g_pDevice->CreateBuffer(BuffDesc, &BuffData, &pBuffer);
+            }
+            
+            if (data != nullptr && BuffDesc.Usage != Diligent::USAGE_IMMUTABLE) {
+                    MG_Diligent::g_pContext->UpdateBuffer(pBuffer, 0,
+                                                          static_cast<Diligent::Uint64>(size), data,
+                                                          Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
+            }
             return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -140,8 +286,9 @@ namespace MG_GL::GL {
         GLenum result = MG_State::GenBufferNames(n, buffers);
         if (result == GL_NO_ERROR) {
             MG_Util::Debug::LogD("Generated buffer names:");
-            for (GLsizei i = 0; i < n; ++i) {
+            for (GLsizei i = 0; i < n; ++i) {                 
                 MG_Util::Debug::LogD("  Buffer[%d] = %u", i, buffers[i]);
+                MG_Diligent::g_BufferMap[buffers[i]] = nullptr;
             }
             return;
         }
@@ -174,13 +321,57 @@ namespace MG_GL::GL {
             MG_State::SetError(result);
             MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
         }
+
+        GLuint buffer = MG_State_T::bufferState->GetCurrentBinding(target);
+        if (buffer == 0) return;
+
+        auto& bufferObj = *MG_State_T::bufferState->GetBufferObject(buffer);
+        if (bufferObj.isDynamic) return; // Dynamic buffer should be created by glDraw*
+
+        auto it = MG_Diligent::g_BufferMap.find(buffer);
+        if (it == MG_Diligent::g_BufferMap.end())
+            return;
+        Diligent::IBuffer* pBuffer = it->second;
+        if (pBuffer) {
+            const auto& Desc = pBuffer->GetDesc();
+            if (Desc.Usage == Diligent::USAGE_STAGING || Desc.Usage == Diligent::USAGE_DYNAMIC || Desc.Usage == Diligent::USAGE_UNIFIED) {
+                void* pMappedData = nullptr;
+                MG_Diligent::g_pContext->MapBuffer(pBuffer, Diligent::MAP_WRITE, Diligent::MAP_FLAG_DISCARD, pMappedData);
+                if (pMappedData)
+                {
+                    memcpy(static_cast<Diligent::Uint8*>(pMappedData) + offset, data, size);
+                    MG_Diligent::g_pContext->UnmapBuffer(pBuffer, Diligent::MAP_WRITE);
+                } else {
+                    MG_Util::Debug::LogE("Failed to map buffer for BufferSubData");
+                }
+            } else {
+                // For USAGE_DEFAULT or USAGE_IMMUTABLE, use UpdateBuffer
+                MG_Diligent::g_pContext->UpdateBuffer(pBuffer, static_cast<Diligent::Uint64>(offset),
+                                                      static_cast<Diligent::Uint64>(size), data,
+                                                      Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
+            }
+        }
     }
     void DeleteBuffers(GLsizei n, const GLuint *buffers) {
         MG_Util::Debug::LogD("glDeleteBuffers, n: %d, buffers: %p", n, buffers);
 
         GLenum result = MG_State::DeleteBuffers(n, buffers);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            for (GLsizei i = 0; i < n; ++i) {
+                GLuint buffer = buffers[i];
+                if (buffer != 0) {
+                    auto it = MG_Diligent::g_BufferMap.find(buffer);
+                    if (it != MG_Diligent::g_BufferMap.end()) {
+                        if (it->second) {
+                            it->second->Release();
+                        }
+                        MG_Diligent::g_BufferMap.erase(it);
+                    }
+
+                }
+            }
             return;
+        }
 
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));

MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GL_BUFFER_H
 #define MOBILEGL_GL_BUFFER_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
     void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
     void FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);

MG/MG_GL/Implementations/GL/Common/GL_Common.cpp

@@ -2,23 +2,100 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Common.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+    void CreateRenderPassAndFramebuffer(GLuint framebuffer,
+                                        const FramebufferObject& fbo,
+                                        MG_Diligent::GLFramebufferInfo& fbInfo);
+    
     void Clear(GLbitfield mask) {
-        MG_Util::Debug::LogD("glClear, mask: 0x%X", mask);
+        GLuint drawFramebuffer = MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER];
-        GLenum result = MG_State::glClear(mask);
+        if (drawFramebuffer == 0) {
-        if (result == GL_NO_ERROR) {
+            drawFramebuffer = 0;
+        }
+
+        auto it = MG_Diligent::g_FramebufferMap.find(drawFramebuffer);
+        if (it == MG_Diligent::g_FramebufferMap.end()) {
+            MG_Util::Debug::LogE("Framebuffer not found: %u", drawFramebuffer);
             return;
         }
-        MG_State::SetError(result);
+
-        MG_Util::Debug::LogE("Error clearing buffers: %s", MG_Util::Debug::GLEnumToString(result));
+        MG_Diligent::GLFramebufferInfo& fbInfo = it->second;
+        auto& commonState = *MG_State_T::commonState;
+
+        MG_Util::Debug::LogD("Setting render targets: %zu color attachments", fbInfo.ColorRTVs.size());
+        MG_Diligent::g_pContext->SetRenderTargets(
+                static_cast<Diligent::Uint32>(fbInfo.ColorRTVs.size()),
+                fbInfo.ColorRTVs.data(),
+                fbInfo.pDepthStencilRTV,
+                ::Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+        );
+
+//        if (MG_Diligent::IsInRenderPass) {
+//            MG_Util::Debug::LogD("Ending render pass before clear operation");
+//            MG_Diligent::g_pContext->EndRenderPass();
+//            MG_Diligent::IsInRenderPass = false;
+//        }
+
+//        MG_Util::Debug::LogD("Beginning render pass for clear operation");
+
+//        if (!fbInfo.pRenderPass) {
+//            MG_GL::GL::CreateRenderPassAndFramebuffer(drawFramebuffer,
+//                                                      *MG_State_T::framebufferState->GetCurrentFBO(GL_DRAW_FRAMEBUFFER), fbInfo);
+//        }
+//        Diligent::BeginRenderPassAttribs beginAttribs;
+//        beginAttribs.pRenderPass = fbInfo.pRenderPass;
+//        beginAttribs.pFramebuffer = fbInfo.pFramebuffer;
+//        beginAttribs.StateTransitionMode = Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION;
+//        beginAttribs.ClearValueCount = 0;
+//        beginAttribs.pClearValues = nullptr;
+
+//        MG_Diligent::g_pContext->BeginRenderPass(beginAttribs);
+//        MG_Diligent::IsInRenderPass = true;
+        
+        if (mask & GL_COLOR_BUFFER_BIT) {
+            for (size_t i = 0; i < fbInfo.ColorRTVs.size(); ++i) {
+                if (fbInfo.ColorRTVs[i]) {
+                    MG_Util::Debug::LogD("Clearing color attachment %zu", i);
+                    MG_Diligent::g_pContext->ClearRenderTarget(
+                            fbInfo.ColorRTVs[i],
+                            commonState.clearColor,
+                            Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+                    );
+                }
+            }
+        }
+
+        if (mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) {
+            if (fbInfo.pDepthStencilRTV) {
+                Diligent::Uint32 clearFlags = 0;
+                if (mask & GL_DEPTH_BUFFER_BIT) clearFlags |= Diligent::CLEAR_DEPTH_FLAG;
+                if (mask & GL_STENCIL_BUFFER_BIT) clearFlags |= Diligent::CLEAR_STENCIL_FLAG;
+
+                MG_Util::Debug::LogD("Clearing depth/stencil (flags: %u)", clearFlags);
+                MG_Diligent::g_pContext->ClearDepthStencil(
+                        fbInfo.pDepthStencilRTV,
+                        static_cast<Diligent::CLEAR_DEPTH_STENCIL_FLAGS>(clearFlags),
+                        commonState.clearDepth,
+                        0,
+                        Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+                );
+            }
+        }
+
+//        MG_Util::Debug::LogD("Ending render pass after clear operation");
+//        MG_Diligent::g_pContext->EndRenderPass();
+//        MG_Diligent::IsInRenderPass = false;
     }
-    
+
     void Enable(GLenum cap) {
         MG_Util::Debug::LogD("glEnable, cap: %s", MG_Util::Debug::GLEnumToString(cap));
         GLenum result = MG_State::glEnable(cap);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error enabling capability: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -26,7 +103,10 @@ namespace MG_GL::GL {
     void Disable(GLenum cap) {
         MG_Util::Debug::LogD("glDisable, cap: %s", MG_Util::Debug::GLEnumToString(cap));
         GLenum result = MG_State::glDisable(cap);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error disabling capability: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -36,7 +116,10 @@ namespace MG_GL::GL {
                              MG_Util::Debug::GLEnumToString(sfactor),
                              MG_Util::Debug::GLEnumToString(dfactor));
         GLenum result = MG_State::glBlendFunc(sfactor, dfactor);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting blend func: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -48,7 +131,10 @@ namespace MG_GL::GL {
                              MG_Util::Debug::GLEnumToString(srcAlpha),
                              MG_Util::Debug::GLEnumToString(dstAlpha));
         GLenum result = MG_State::glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting separate blend func: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -56,7 +142,10 @@ namespace MG_GL::GL {
     void ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
         MG_Util::Debug::LogD("glClearColor, rgba: [%.2f, %.2f, %.2f, %.2f]", red, green, blue, alpha);
         GLenum result = MG_State::glClearColor(red, green, blue, alpha);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting clear color: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -64,7 +153,10 @@ namespace MG_GL::GL {
     void ClearDepth(GLdouble depth) {
         MG_Util::Debug::LogD("glClearDepth, depth: %.3f", depth);
         GLenum result = MG_State::glClearDepth(depth);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting clear depth: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -72,7 +164,10 @@ namespace MG_GL::GL {
     void ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) {
         MG_Util::Debug::LogD("glColorMask, rgba: [%d, %d, %d, %d]", red, green, blue, alpha);
         GLenum result = MG_State::glColorMask(red, green, blue, alpha);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting color mask: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -80,7 +175,10 @@ namespace MG_GL::GL {
     void DepthFunc(GLenum func) {
         MG_Util::Debug::LogD("glDepthFunc, func: %s", MG_Util::Debug::GLEnumToString(func));
         GLenum result = MG_State::glDepthFunc(func);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting depth func: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -88,7 +186,10 @@ namespace MG_GL::GL {
     void DepthMask(GLboolean flag) {
         MG_Util::Debug::LogD("glDepthMask, flag: %d", flag);
         GLenum result = MG_State::glDepthMask(flag);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
+            return; 
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting depth mask: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -97,16 +198,20 @@ namespace MG_GL::GL {
         MG_Util::Debug::LogD("glViewport, x: %d, y: %d, width: %d, height: %d",
                              x, y, width, height);
         GLenum result = MG_State::glViewport(x, y, width, height);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error setting viewport: %s", MG_Util::Debug::GLEnumToString(result));
     }
 
     void PixelStorei(GLenum pname, GLint param) {
-        MG_Util::Debug::LogD("glPixelStorei, pname: %d, param: %d", pname, param);
+        MG_Util::Debug::LogD("glPixelStorei, pname: %s, param: %d", MG_Util::Debug::GLEnumToString(pname), param);
         GLenum result = MG_State::SetPixelStoreInt(pname,param);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            MG_Diligent::g_PSOManager.MarkPSODirty(MG_State_T::programState->currentProgram_);
             return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }   

MG/MG_GL/Implementations/GL/Common/GL_Common.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GL_COMMON_H
 #define MOBILEGL_GL_COMMON_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
     void ClearDepth(GLdouble depth);
     void ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);

MG/MG_GL/Implementations/GL/Drawing/GL_Drawing.h

@@ -4,15 +4,17 @@
 
 #ifndef MOBILEGL_GL_DRAWING_H
 #define MOBILEGL_GL_DRAWING_H
-#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+    bool IsSamplerType(GLenum type);
+    Diligent::VALUE_TYPE ConvertGLTypeToDiligent(GLenum type);
+    void PrepareForDraw(GLenum mode, GLsizei* pCount, GLenum& type, const void*& pIndices);
+    
     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 DrawBuffer(GLenum buf);
 }
 
 #endif //MOBILEGL_GL_DRAWING_H

MG/MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.cpp

@@ -2,13 +2,235 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Framebuffer.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+    void ReleaseFramebufferResources(MG_Diligent::GLFramebufferInfo& fbInfo) {
+//        if (fbInfo.pFramebuffer) {
+//            fbInfo.pFramebuffer->Release();
+//            fbInfo.pFramebuffer = nullptr;
+//        }
+
+//        if (fbInfo.pRenderPass) {
+//            fbInfo.pRenderPass->Release();
+//            fbInfo.pRenderPass = nullptr;
+//        }
+    }
+
+    void CreateRenderPassAndFramebuffer(GLuint framebuffer,
+                                        const FramebufferObject& fbo,
+                                        MG_Diligent::GLFramebufferInfo& fbInfo) {
+        Diligent::Uint32 width = 0;
+        Diligent::Uint32 height = 0;
+
+        if (framebuffer == 0) {
+            if (MG_Diligent::g_pSwapChain) {
+                width = MG_Diligent::g_pSwapChain->GetDesc().Width;
+                height = MG_Diligent::g_pSwapChain->GetDesc().Height;
+                MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Using swap chain dimensions: %ux%u", width, height);
+            } else {
+                MG_Util::Debug::LogE("CreateRenderPassAndFramebuffer: Swap chain not initialized for default framebuffer");
+                return;
+            }
+        } else if (!fbInfo.ColorRTVs.empty() && fbInfo.ColorRTVs[0]) {
+            const auto& desc = fbInfo.ColorRTVs[0]->GetTexture()->GetDesc();
+            width = desc.Width;
+            height = desc.Height;
+            MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Using color attachment 0 for dimensions: %ux%u", width, height);
+        } else if (fbInfo.pDepthStencilRTV) {
+            const auto& desc = fbInfo.pDepthStencilRTV->GetTexture()->GetDesc();
+            width = desc.Width;
+            height = desc.Height;
+            MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Using depth/stencil attachment for dimensions: %ux%u", width, height);
+        } else {
+            MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Failed to determine framebuffer dimensions. No attachments.");
+            return;
+        }
+
+        if (width == 0 || height == 0) {
+            MG_Util::Debug::LogE("CreateRenderPassAndFramebuffer: Failed to determine framebuffer dimensions. Width or Height is 0.");
+            return;
+        }
+
+//        Diligent::RenderPassDesc RPDesc;
+//        std::vector<Diligent::RenderPassAttachmentDesc> Attachments;
+//        std::vector<Diligent::SubpassDesc> Subpasses;
+//        std::vector<Diligent::AttachmentReference> ColorRefs;
+//
+//        for (size_t i = 0; i < fbInfo.ColorRTVs.size(); ++i) {
+//            if (fbInfo.ColorRTVs[i]) {
+//                Diligent::RenderPassAttachmentDesc ColorAttachment;
+//                ColorAttachment.Format = framebuffer != 0 ? fbInfo.ColorRTVs[i]->GetDesc().Format:
+//                                         MG_Diligent::g_pSwapChain->GetDesc().ColorBufferFormat;
+//                ColorAttachment.SampleCount = 1;
+//                ColorAttachment.InitialState = Diligent::RESOURCE_STATE_RENDER_TARGET;
+//                ColorAttachment.FinalState = Diligent::RESOURCE_STATE_RENDER_TARGET;
+//                ColorAttachment.LoadOp = Diligent::ATTACHMENT_LOAD_OP_LOAD;
+//                ColorAttachment.StoreOp = Diligent::ATTACHMENT_STORE_OP_STORE;
+//                Attachments.push_back(ColorAttachment);
+//
+//                Diligent::AttachmentReference ColorRef;
+//                ColorRef.AttachmentIndex = static_cast<Diligent::Uint32>(Attachments.size() - 1);
+//                ColorRef.State = Diligent::RESOURCE_STATE_RENDER_TARGET;
+//                ColorRefs.push_back(ColorRef);
+//                MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Added color attachment %zu", i);
+//            }
+//        }
+
+//        Diligent::AttachmentReference DepthRef;
+//        if (fbInfo.pDepthStencilRTV) {
+//            Diligent::RenderPassAttachmentDesc DepthAttachment;
+//            DepthAttachment.Format = fbInfo.DepthStencilFormat;
+//            DepthAttachment.SampleCount = 1;
+//            DepthAttachment.InitialState = Diligent::RESOURCE_STATE_DEPTH_WRITE;
+//            DepthAttachment.FinalState = Diligent::RESOURCE_STATE_DEPTH_WRITE;
+//            DepthAttachment.LoadOp = Diligent::ATTACHMENT_LOAD_OP_LOAD;
+//            DepthAttachment.StoreOp = Diligent::ATTACHMENT_STORE_OP_STORE;
+//            DepthAttachment.StencilLoadOp = Diligent::ATTACHMENT_LOAD_OP_LOAD;
+//            DepthAttachment.StencilStoreOp = Diligent::ATTACHMENT_STORE_OP_STORE;
+//            Attachments.push_back(DepthAttachment);
+//
+//            DepthRef.AttachmentIndex = static_cast<Diligent::Uint32>(Attachments.size() - 1);
+//            DepthRef.State = Diligent::RESOURCE_STATE_DEPTH_WRITE;
+//            MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Added depth/stencil attachment");
+//        }
+
+//        Diligent::SubpassDesc Subpass;
+//        Subpass.RenderTargetAttachmentCount = static_cast<Diligent::Uint32>(ColorRefs.size());
+//        Subpass.pRenderTargetAttachments = ColorRefs.empty() ? nullptr : ColorRefs.data();
+//        Subpass.pDepthStencilAttachment = fbInfo.pDepthStencilRTV ? &DepthRef : nullptr;
+//        Subpasses.push_back(Subpass);
+//
+//        RPDesc.AttachmentCount = static_cast<Diligent::Uint32>(Attachments.size());
+//        RPDesc.pAttachments = Attachments.empty() ? nullptr : Attachments.data();
+//        RPDesc.SubpassCount = static_cast<Diligent::Uint32>(Subpasses.size());
+//        RPDesc.pSubpasses = Subpasses.data();
+//
+//        MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Creating RenderPass with %u attachments and %u subpasses.",
+//                             RPDesc.AttachmentCount, RPDesc.SubpassCount);
+//
+//        MG_Diligent::g_pDevice->CreateRenderPass(RPDesc, &fbInfo.pRenderPass);
+//        if (!fbInfo.pRenderPass) {
+//            MG_Util::Debug::LogE("CreateRenderPassAndFramebuffer: Failed to create RenderPass.");
+//            return;
+//        }
+//        MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: RenderPass created successfully.");
+
+//        Diligent::FramebufferDesc FBDesc;
+//        FBDesc.Name = "Framebuffer";
+////        FBDesc.pRenderPass = fbInfo.pRenderPass;
+//        FBDesc.AttachmentCount = static_cast<Diligent::Uint32>(Attachments.size());
+//
+//        std::vector<Diligent::ITextureView *> FBAtachments(Attachments.size());
+//        for (size_t i = 0; i < ColorRefs.size(); ++i) {
+//            if (i < fbInfo.ColorRTVs.size() && fbInfo.ColorRTVs[i]) {
+//                FBAtachments[i] = fbInfo.ColorRTVs[i];
+//            }
+//        }
+//
+//        if (fbInfo.pDepthStencilRTV) {
+//            FBAtachments[ColorRefs.size()] = fbInfo.pDepthStencilRTV;
+//        }
+
+//        FBDesc.ppAttachments = FBAtachments.data();
+//        FBDesc.Width = width;
+//        FBDesc.Height = height;
+//        FBDesc.NumArraySlices = 1;
+//
+//        MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: FramebufferDesc Details:");
+//        MG_Util::Debug::LogD("  Name: %s", FBDesc.Name ? FBDesc.Name : "N/A");
+//        MG_Util::Debug::LogD("  pRenderPass: %p", FBDesc.pRenderPass);
+//        MG_Util::Debug::LogD("  AttachmentCount: %u", FBDesc.AttachmentCount);
+//        for (Diligent::Uint32 i = 0; i < FBDesc.AttachmentCount; ++i) {
+//            if (FBDesc.ppAttachments && FBDesc.ppAttachments[i]) {
+//                Diligent::ITexture* pTexture = FBDesc.ppAttachments[i]->GetTexture();
+//                if (pTexture) {
+//                    const auto& texDesc = pTexture->GetDesc();
+//                    MG_Util::Debug::LogD("  Attachment %u: Texture '%s', Dim: %ux%u",
+//                                         i, texDesc.Name ? texDesc.Name : "N/A", texDesc.Width, texDesc.Height);
+//                } else {
+//                    MG_Util::Debug::LogW("  Attachment %u: TextureView's texture is nullptr", i);
+//                }
+//            } else if (!FBDesc.ppAttachments) {
+//                MG_Util::Debug::LogW("  FBDesc.ppAttachments is nullptr. Cannot access attachment %u.", i);
+//            } else {
+//                MG_Util::Debug::LogD("  Attachment %u: nullptr", i);
+//            }
+//        }
+//        MG_Util::Debug::LogD("  Width: %u", FBDesc.Width);
+//        MG_Util::Debug::LogD("  Height: %u", FBDesc.Height);
+//        MG_Util::Debug::LogD("  NumArraySlices: %u", FBDesc.NumArraySlices);
+//        MG_Util::Debug::LogD("  fbInfo.pFramebuffer: %p", fbInfo.pFramebuffer);
+
+        fbInfo.ClearValues.clear();
+        for (size_t i = 0; i < fbInfo.ColorRTVs.size(); ++i) {
+            Diligent::OptimizedClearValue clearValue;
+            clearValue.Color[0] = 0.0f;
+            clearValue.Color[1] = 0.0f;
+            clearValue.Color[2] = 0.0f;
+            clearValue.Color[3] = 1.0f;
+            fbInfo.ClearValues.push_back(clearValue);
+        }
+
+        if (fbInfo.pDepthStencilRTV) {
+            Diligent::OptimizedClearValue clearValue;
+            clearValue.DepthStencil.Depth = 1.0f;
+            clearValue.DepthStencil.Stencil = 0;
+            fbInfo.ClearValues.push_back(clearValue);
+        }
+
+//        MG_Diligent::g_pDevice->CreateFramebuffer(FBDesc, &fbInfo.pFramebuffer);
+//        if (!fbInfo.pFramebuffer) {
+//            MG_Util::Debug::LogE("CreateRenderPassAndFramebuffer: Failed to create Framebuffer.");
+//            return;
+//        }
+//        MG_Util::Debug::LogD("CreateRenderPassAndFramebuffer: Framebuffer created successfully.");
+    }
+
+    void UpdateDefaultFramebuffer() {
+        auto it = MG_Diligent::g_FramebufferMap.find(0);
+        if (it == MG_Diligent::g_FramebufferMap.end()) {
+            MG_Diligent::g_FramebufferMap[0] = MG_Diligent::GLFramebufferInfo();
+        }
+
+        MG_Diligent::GLFramebufferInfo& fbInfo = MG_Diligent::g_FramebufferMap[0];
+
+        ReleaseFramebufferResources(fbInfo);
+
+        if (MG_Diligent::g_pSwapChain) {
+            Diligent::ITextureView* pRTV = MG_Diligent::g_pSwapChain->GetCurrentBackBufferRTV();
+            Diligent::ITextureView* pDSV = MG_Diligent::g_pSwapChain->GetDepthBufferDSV();
+
+            if (pRTV) {
+                fbInfo.ColorRTVs = { pRTV };
+            } else {
+                MG_Util::Debug::LogE("Failed to get swap chain back buffer RTV");
+            }
+
+            if (pDSV) {
+                fbInfo.pDepthStencilRTV = pDSV;
+                fbInfo.DepthStencilFormat = MG_Diligent::g_pSwapChain->GetDesc().DepthBufferFormat;
+                fbInfo.HasDepthStencil = true;
+            } else {
+                MG_Util::Debug::LogE("Failed to get swap chain depth buffer DSV");
+            }
+
+            CreateRenderPassAndFramebuffer(0, FramebufferObject(), fbInfo);
+        } else {
+            MG_Util::Debug::LogE("Swap chain not initialized for default framebuffer");
+        }
+    }
+
     void GenFramebuffers(GLsizei n, GLuint* framebuffers) {
         MG_Util::Debug::LogD("glGenFramebuffers, n: %d, framebuffers: %p", n, framebuffers);
         GLenum result = MG_State::CreateFramebuffers(n, framebuffers);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            for (GLsizei i = 0; i < n; ++i) {
+                MG_Diligent::GLFramebufferInfo fbInfo;
+                MG_Diligent::g_FramebufferMap[framebuffers[i]] = fbInfo;
+            }
+            return;
+        };
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Framebuffer generation failed: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -21,18 +243,205 @@ namespace MG_GL::GL {
                 MG_State::SetError(result);
                 MG_Util::Debug::LogE("Failed to delete framebuffer %u: %s",
                                      framebuffers[i], MG_Util::Debug::GLEnumToString(result));
+            } else {
+                GLuint fb = framebuffers[i];
+                auto it = MG_Diligent::g_FramebufferMap.find(fb);
+                if (it != MG_Diligent::g_FramebufferMap.end()) {
+                    MG_Diligent::GLFramebufferInfo& fbInfo = it->second;
+
+//                    if (fbInfo.pFramebuffer) {
+//                        fbInfo.pFramebuffer->Release();
+//                    }
+
+//                    if (fbInfo.pRenderPass) {
+//                        fbInfo.pRenderPass->Release();
+//                    }
+
+                    for (auto& rtv : fbInfo.ColorRTVs) {
+                        if (rtv) rtv->Release();
+                    }
+
+                    if (fbInfo.pDepthStencilRTV) {
+                        fbInfo.pDepthStencilRTV->Release();
+                    }
+
+                    MG_Diligent::g_FramebufferMap.erase(it);
+                }
             }
         }
     }
 
     void BindFramebuffer(GLenum target, GLuint framebuffer) {
-        MG_Util::Debug::LogD("glBindFramebuffer, target: %s, fb: %u",
+        MG_Util::Debug::LogD("BindFramebuffer: Start. Target: %s, Framebuffer: %u",
                              MG_Util::Debug::GLEnumToString(target), framebuffer);
+
         GLenum result = MG_State::BindFramebuffer(target, framebuffer);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            MG_Util::Debug::LogD("BindFramebuffer: MG_State::BindFramebuffer successful.");
+
+//            if (MG_Diligent::IsInRenderPass) {
+//                MG_Util::Debug::LogD("BindFramebuffer: Ending current render pass.");
+//                MG_Diligent::g_pContext->EndRenderPass();
+//                MG_Diligent::IsInRenderPass = false;
+//                MG_Util::Debug::LogD("BindFramebuffer: Current render pass ended.");
+//            } else {
+//                MG_Util::Debug::LogD("BindFramebuffer: No active render pass to end.");
+//            }
+
+
+            if (framebuffer == 0) {
+                MG_Util::Debug::LogD("BindFramebuffer: Framebuffer is 0 (default framebuffer). Updating default framebuffer.");
+                UpdateDefaultFramebuffer();
+                MG_Util::Debug::LogD("BindFramebuffer: Default framebuffer updated.");
+            }
+
+
+            FramebufferObject* pFBO = MG_State_T::framebufferState->GetCurrentFBO(target);
+            MG_Util::Debug::LogD("BindFramebuffer: Retrieved FBO from state: %p", pFBO);
+
+            auto it = MG_Diligent::g_FramebufferMap.find(framebuffer);
+
+            if (it == MG_Diligent::g_FramebufferMap.end()) {
+                MG_Util::Debug::LogE("BindFramebuffer: Framebuffer %u not found in g_FramebufferMap. Aborting.", framebuffer);
+                return;
+            }
+            MG_Util::Debug::LogD("BindFramebuffer: Framebuffer %u found in g_FramebufferMap.", framebuffer);
+
+            MG_Diligent::GLFramebufferInfo& fbInfo = it->second;
+
+//            if (/*!fbInfo.pRenderPass || */!fbInfo.pFramebuffer) {
+//                MG_Util::Debug::LogD("BindFramebuffer: RenderPass or Framebuffer not yet created for framebuffer %u. Creating now.", framebuffer);
+//                CreateRenderPassAndFramebuffer(framebuffer, pFBO ? *pFBO : FramebufferObject(), fbInfo);
+//                MG_Util::Debug::LogD("BindFramebuffer: RenderPass and Framebuffer creation attempted for framebuffer %u.", framebuffer);
+//            } else {
+//                MG_Util::Debug::LogD("BindFramebuffer: RenderPass and Framebuffer already exist for framebuffer %u.", framebuffer);
+//            }
+
+            MG_Util::Debug::LogD("BindFramebuffer: Setting render targets. ColorRTVs count: %zu, DepthStencilRTV: %p",
+                                 fbInfo.ColorRTVs.size(), fbInfo.pDepthStencilRTV);
+            
+            MG_Diligent::g_pContext->SetRenderTargets(
+                static_cast<Diligent::Uint32>(fbInfo.ColorRTVs.size()),
+                fbInfo.ColorRTVs.empty() ? nullptr : fbInfo.ColorRTVs.data(),
+                fbInfo.pDepthStencilRTV,
+                Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+            );
+            MG_Util::Debug::LogD("BindFramebuffer: SetRenderTargets called.");
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Framebuffer bind error: %s", MG_Util::Debug::GLEnumToString(result));
     }
+    
+    void AttachTexture2DToFramebuffer(GLuint fbo, GLuint texture, GLenum attachment, GLint level) {
+        auto it = MG_Diligent::g_FramebufferMap.find(fbo);
+        if (it == MG_Diligent::g_FramebufferMap.end()) {
+            MG_Util::Debug::LogE("Framebuffer %u not found in map", fbo);
+            return;
+        }
+
+        MG_Diligent::GLFramebufferInfo& fbInfo = it->second;
+
+//        if (fbInfo.pFramebuffer) {
+//            fbInfo.pFramebuffer->Release();
+//            fbInfo.pFramebuffer = nullptr;
+//            MG_Util::Debug::LogD("Released existing framebuffer");
+//        }
+//        if (fbInfo.pRenderPass) {
+//            fbInfo.pRenderPass->Release();
+//            fbInfo.pRenderPass = nullptr;
+//            MG_Util::Debug::LogD("Released existing render pass");
+//        }
+
+        if (texture == 0) {
+            MG_Util::Debug::LogD("Unbinding attachment: %s", MG_Util::Debug::GLEnumToString(attachment));
+
+            if (attachment == GL_DEPTH_ATTACHMENT ||
+                attachment == GL_STENCIL_ATTACHMENT ||
+                attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+                if (fbInfo.pDepthStencilRTV) {
+                    fbInfo.pDepthStencilRTV->Release();
+                    fbInfo.pDepthStencilRTV = nullptr;
+                    MG_Util::Debug::LogD("Released depth/stencil attachment");
+                }
+            } else {
+                size_t index = attachment - GL_COLOR_ATTACHMENT0;
+                if (index < fbInfo.ColorRTVs.size() && fbInfo.ColorRTVs[index]) {
+                    fbInfo.ColorRTVs[index]->Release();
+                    fbInfo.ColorRTVs[index] = nullptr;
+                    bool allNull = true;
+                    for (const auto& rtv : fbInfo.ColorRTVs) {
+                        if (rtv != nullptr) {
+                            allNull = false;
+                            break;
+                        }
+                    }
+                    if (allNull) fbInfo.ColorRTVs.clear();
+                    MG_Util::Debug::LogD("Released color attachment %zu", index);
+                }
+            }
+        } else {
+            Diligent::ITexture* pTexture = MG_Diligent::g_TextureMap[texture];
+            if (!pTexture) {
+                MG_Util::Debug::LogE("Texture %u exists in map but pointer is null", texture);
+                return;
+            }
+            const auto& texDesc = pTexture->GetDesc();
+            MG_Util::Debug::LogD("Attaching texture: %s (size: %ux%u)",
+                                 texDesc.Name,
+                                 texDesc.Width, texDesc.Height);
+            Diligent::TextureViewDesc ViewDesc;
+            ViewDesc.TextureDim = Diligent::RESOURCE_DIM_TEX_2D;
+            ViewDesc.MostDetailedMip = level;
+            ViewDesc.NumMipLevels = 1;
+
+            if (attachment == GL_DEPTH_ATTACHMENT ||
+                attachment == GL_STENCIL_ATTACHMENT ||
+                attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+                MG_Util::Debug::LogD("Creating depth/stencil attachment");
+
+                if (fbInfo.pDepthStencilRTV) {
+                    fbInfo.pDepthStencilRTV->Release();
+                    fbInfo.pDepthStencilRTV = nullptr;
+                    MG_Util::Debug::LogD("Released existing depth/stencil attachment");
+                }
+
+                ViewDesc.ViewType = Diligent::TEXTURE_VIEW_DEPTH_STENCIL;
+                fbInfo.DepthStencilFormat = texDesc.Format;
+                pTexture->CreateView(ViewDesc, &fbInfo.pDepthStencilRTV);
+
+                if (fbInfo.pDepthStencilRTV) {
+                    fbInfo.HasDepthStencil = true;
+                    MG_Util::Debug::LogD("Created new depth/stencil RTV");
+                } else {
+                    MG_Util::Debug::LogE("Failed to create depth/stencil RTV");
+                }
+            } else {
+                size_t index = attachment - GL_COLOR_ATTACHMENT0;
+                MG_Util::Debug::LogD("Creating color attachment at index %zu", index);
+
+                if (index >= fbInfo.ColorRTVs.size()) {
+                    fbInfo.ColorRTVs.resize(index + 1, nullptr);
+                    MG_Util::Debug::LogD("Resized color attachments to %zu", fbInfo.ColorRTVs.size());
+                }
+
+                if (fbInfo.ColorRTVs[index]) {
+                    fbInfo.ColorRTVs[index]->Release();
+                    fbInfo.ColorRTVs[index] = nullptr;
+                    MG_Util::Debug::LogD("Released existing color attachment %zu", index);
+                }
+
+                ViewDesc.ViewType = Diligent::TEXTURE_VIEW_RENDER_TARGET;
+                pTexture->CreateView(ViewDesc, &fbInfo.ColorRTVs[index]);
+
+                if (fbInfo.ColorRTVs[index]) {
+                    MG_Util::Debug::LogD("Created new color RTV at index %zu", index);
+                } else {
+                    MG_Util::Debug::LogE("Failed to create color RTV at index %zu", index);
+                }
+            }
+        }
+    }
 
     void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget,
                               GLuint texture, GLint level) {
@@ -40,13 +449,52 @@ namespace MG_GL::GL {
                              MG_Util::Debug::GLEnumToString(target),
                              MG_Util::Debug::GLEnumToString(attachment),
                              MG_Util::Debug::GLEnumToString(textarget),
-                             texture, level);
+                             texture,
+                             level);
+
+        if (target == GL_FRAMEBUFFER) {
+            MG_Util::Debug::LogD("Got target == GL_FRAMEBUFFER, treating as GL_DRAW_FRAMEBUFFER");
+            target = GL_DRAW_FRAMEBUFFER;
+        }
+
+        MG_Util::Debug::LogD("  Current READ_FRAMEBUFFER binding: %u", MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER]);
+        MG_Util::Debug::LogD("  Current DRAW_FRAMEBUFFER binding: %u", MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER]);
 
         GLenum result = MG_State::AttachTexture2DToFramebuffer(
                 target, attachment, textarget, texture, level
         );
 
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+//            if (target == GL_FRAMEBUFFER) {
+//                if (MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER] == MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER]) {
+//                    MG_Util::Debug::LogD("  Target is GL_FRAMEBUFFER and READ/DRAW bindings are the same (%u). Applying to GL_DRAW_FRAMEBUFFER.",
+//                                         MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER]);
+//                    target = GL_DRAW_FRAMEBUFFER;
+//                } else {
+//                    MG_Util::Debug::LogD("  Target is GL_FRAMEBUFFER and READ/DRAW bindings differ. Applying to both if non-zero.");
+//                    if (MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER] != 0) {
+//                        MG_Util::Debug::LogD("  Attaching to READ_FRAMEBUFFER: %u", MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER]);
+//                        AttachTexture2DToFramebuffer(MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER],
+//                                                     texture, attachment, level);
+//                    }
+//                    if (MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER] != 0) {
+//                        MG_Util::Debug::LogD("  Attaching to DRAW_FRAMEBUFFER: %u", MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER]);
+//                        AttachTexture2DToFramebuffer(MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER],
+//                                                     texture, attachment, level);
+//                    }
+//                    MG_Util::Debug::LogD("FramebufferTexture2D completed successfully after separate READ/DRAW attachments.");
+//                    return;
+//                }
+//            }
+            GLuint fboToModify = MG_State_T::framebufferState->currentBindings_[target];
+            MG_Util::Debug::LogD("  Target is %s. Applying to bound FBO: %u",
+                                 MG_Util::Debug::GLEnumToString(target), fboToModify);
+            AttachTexture2DToFramebuffer(fboToModify,
+                                         texture, attachment, level);
+
+            MG_Util::Debug::LogD("FramebufferTexture2D completed successfully for target %s (FBO %u).", MG_Util::Debug::GLEnumToString(target), fboToModify);
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Texture attachment failed: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -56,8 +504,7 @@ namespace MG_GL::GL {
                              MG_Util::Debug::GLEnumToString(target));
         GLenum result = MG_State::ValidateFramebufferCompleteness(target);
         if (result >= GL_FRAMEBUFFER_COMPLETE) {
-            MG_Util::Debug::LogD("Framebuffer status: %s",
+            MG_Util::Debug::LogD("Framebuffer status: %s", MG_Util::Debug::GLEnumToString(result));
-                                 MG_Util::Debug::GLEnumToString(result));
             return result;
         }
         MG_State::SetError(result);
@@ -68,6 +515,92 @@ namespace MG_GL::GL {
 
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
                          GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
-        // TODO
+//        if (MG_Diligent::IsInRenderPass) {
+//            MG_Util::Debug::LogD("Ending current render pass.");
+//            MG_Diligent::g_pContext->EndRenderPass();
+//            MG_Diligent::IsInRenderPass = false;
+//            MG_Util::Debug::LogD("Current render pass ended.");
+//        }
+
+        // explicitly unbind the texture
+        MG_Diligent::g_pContext->SetRenderTargets(0, nullptr, nullptr, Diligent::RESOURCE_STATE_TRANSITION_MODE_NONE);
+        
+        GLuint readFB = MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER];
+        GLuint drawFB = MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER];
+
+        MG_Diligent::GLFramebufferInfo* pSrcFB = nullptr;
+        MG_Diligent::GLFramebufferInfo* pDstFB = nullptr;
+
+        if (readFB != 0) pSrcFB = &MG_Diligent::g_FramebufferMap[readFB];
+        if (drawFB != 0) pDstFB = &MG_Diligent::g_FramebufferMap[drawFB];
+
+        if (!pSrcFB) pSrcFB = &MG_Diligent::g_FramebufferMap[0];
+        if (!pDstFB) pDstFB = &MG_Diligent::g_FramebufferMap[0];
+
+        bool copyColor = (mask & GL_COLOR_BUFFER_BIT) != 0;
+        bool copyDepth = (mask & GL_DEPTH_BUFFER_BIT) != 0;
+        bool copyStencil = (mask & GL_STENCIL_BUFFER_BIT) != 0;
+
+        if (copyColor && !pSrcFB->ColorRTVs.empty() && !pDstFB->ColorRTVs.empty()) {
+            for (size_t i = 0; i < pSrcFB->ColorRTVs.size() && i < pDstFB->ColorRTVs.size(); ++i) {
+                if (pSrcFB->ColorRTVs[i] && pDstFB->ColorRTVs[i]) {
+                    Diligent::CopyTextureAttribs CopyAttribs;
+                    CopyAttribs.pSrcTexture = pSrcFB->ColorRTVs[i]->GetTexture();
+                    CopyAttribs.pDstTexture = pDstFB->ColorRTVs[i]->GetTexture();
+                    CopyAttribs.SrcTextureTransitionMode = Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION;
+                    CopyAttribs.DstTextureTransitionMode = Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION;
+
+                    Diligent::Box SrcBox;
+                    SrcBox.MinX = srcX0;
+                    SrcBox.MinY = srcY0;
+                    SrcBox.MaxX = srcX1;
+                    SrcBox.MaxY = srcY1;
+                    CopyAttribs.pSrcBox = &SrcBox;
+
+                    CopyAttribs.DstX = dstX0;
+                    CopyAttribs.DstY = dstY0;
+
+                    MG_Diligent::g_pContext->CopyTexture(CopyAttribs);
+                }
+            }
+        }
+
+        if ((copyDepth || copyStencil) && pSrcFB->pDepthStencilRTV && pDstFB->pDepthStencilRTV) {
+            Diligent::CopyTextureAttribs CopyAttribs;
+            CopyAttribs.pSrcTexture = pSrcFB->pDepthStencilRTV->GetTexture();
+            CopyAttribs.pDstTexture = pDstFB->pDepthStencilRTV->GetTexture();
+            CopyAttribs.SrcTextureTransitionMode = Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION;
+            CopyAttribs.DstTextureTransitionMode = Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION;
+
+            Diligent::Box SrcBox;
+            SrcBox.MinX = srcX0;
+            SrcBox.MinY = srcY0;
+            SrcBox.MaxX = srcX1;
+            SrcBox.MaxY = srcY1;
+            CopyAttribs.pSrcBox = &SrcBox;
+
+            CopyAttribs.DstX = dstX0;
+            CopyAttribs.DstY = dstY0;
+
+            MG_Diligent::g_pContext->CopyTexture(CopyAttribs);
+        }
     }
-}
+
+    void DrawBuffer(GLenum buf) {
+        MG_Util::Debug::LogD("glDrawBuffer, buf: %s", MG_Util::Debug::GLEnumToString(buf));
+    }
+
+    void DrawBuffers(GLsizei n, const GLenum *bufs) {
+        MG_Util::Debug::LogD("glDrawBuffers, n: %d, bufs: [", n);
+        for (int i = 0; i < n; ++i) {
+            MG_Util::Debug::LogD("%s,", MG_Util::Debug::GLEnumToString(bufs[i]));
+        }
+        MG_Util::Debug::LogD("]");
+
+    }
+
+    void ReadBuffer(GLenum buf) {
+        MG_Util::Debug::LogD("glReadBuffer, buf: %s", MG_Util::Debug::GLEnumToString(buf));
+
+    }
+}

MG/MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.h

@@ -5,15 +5,18 @@
 #ifndef MOBILEGL_GL_FRAMEBUFFER_H
 #define MOBILEGL_GL_FRAMEBUFFER_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
+    void UpdateDefaultFramebuffer();
+
     void GenFramebuffers(GLsizei n, GLuint* framebuffers);
     void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers);
     void BindFramebuffer(GLenum target, GLuint framebuffer);
     void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
     GLenum CheckFramebufferStatus(GLenum target);
     void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+    void DrawBuffer(GLenum buf);
+    void DrawBuffers(GLsizei n, const GLenum *bufs);
+    void ReadBuffer(GLenum mode);
 }
 
 #endif //MOBILEGL_GL_FRAMEBUFFER_H

MG/MG_GL/Implementations/GL/GLFuncsDefinitions/GLFuncsDefinitions.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GLFuncsDefinitions.h"
+#include "../../../../Includes.h"
 
 #define DECLARE_GL_FUNCTION_STUB_HEAD(type,name,...)                        \
 MG_EXPORT type gl##name(__VA_ARGS__) {
@@ -57,7 +57,7 @@ DECLARE_GL_FUNCTION_HEAD(void, CompileShader, GLuint shader) DECLARE_GL_FUNCTION
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CompressedTexImage2D, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CompressedTexImage2D, target,level,internalformat,width,height,border,imageSize,data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CompressedTexSubImage2D, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CompressedTexSubImage2D, target,level,xoffset,yoffset,width,height,format,imageSize,data)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTexImage2D, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyTexImage2D, target,level,internalformat,x,y,width,height,border)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTexSubImage2D, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CopyTexSubImage2D, target,level,xoffset,yoffset,x,y,width,height)
+DECLARE_GL_FUNCTION_STUB_HEAD(void, CopyTexSubImage2D, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CopyTexSubImage2D, target,level,xoffset,yoffset,x,y,width,height)
 DECLARE_GL_FUNCTION_HEAD(GLuint, CreateProgram) DECLARE_GL_FUNCTION_END(GLuint, CreateProgram)
 DECLARE_GL_FUNCTION_HEAD(GLuint, CreateShader, GLenum type) DECLARE_GL_FUNCTION_END(GLuint, CreateShader, type)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, CullFace, GLenum mode) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CullFace, mode)
@@ -174,7 +174,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib4f, GLuint index, GLfloat x, GLf
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib4fv, GLuint index, const GLfloat *v) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttrib4fv, index,v)
 DECLARE_GL_FUNCTION_HEAD(void, VertexAttribPointer, GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, VertexAttribPointer, index,size,type,normalized,stride,pointer)
 DECLARE_GL_FUNCTION_HEAD(void, Viewport, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Viewport, x,y,width,height)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ReadBuffer, GLenum src) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ReadBuffer, src)
+DECLARE_GL_FUNCTION_STUB_HEAD(void, ReadBuffer, GLenum src) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ReadBuffer, src)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, DrawRangeElements, GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DrawRangeElements, mode,start,end,count,type,indices)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexImage3D, GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexImage3D, target,level,internalformat,width,height,depth,border,format,type,pixels)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexSubImage3D, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void *pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexSubImage3D, target,level,xoffset,yoffset,zoffset,width,height,depth,format,type,pixels)
@@ -190,7 +190,7 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryiv, GLenum target, GLenum pname, GLi
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetQueryObjectuiv, GLuint id, GLenum pname, GLuint *params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetQueryObjectuiv, id,pname,params)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, UnmapBuffer, GLenum target) DECLARE_GL_FUNCTION_END(GLboolean, UnmapBuffer, target)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBufferPointerv, GLenum target, GLenum pname, void **params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBufferPointerv, target,pname,params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DrawBuffers, GLsizei n, const GLenum *bufs) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DrawBuffers, n,bufs)
+DECLARE_GL_FUNCTION_STUB_HEAD(void, DrawBuffers, GLsizei n, const GLenum *bufs) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DrawBuffers, n,bufs)
 DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix2x3fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix2x3fv, location,count,transpose,value)
 DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix3x2fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix3x2fv, location,count,transpose,value)
 DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix2x4fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat *value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix2x4fv, location,count,transpose,value)

MG/MG_GL/Implementations/GL/GLFuncsDefinitions/GLFuncsDefinitions.h

@@ -5,6 +5,4 @@
 #ifndef MOBILEGL_GL_FUNCS_DEFINITIONS_H
 #define MOBILEGL_GL_FUNCS_DEFINITIONS_H
 
-#include "../../../../Includes.h"
-
 #endif //MOBILEGL_GL_FUNCS_DEFINITIONS_H

MG/MG_GL/Implementations/GL/Getter/BackendInfo.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "BackendInfo.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::Getter {
     const std::string GetBackendName() {
@@ -12,6 +12,17 @@ namespace MG_GL::Getter {
         return "Metal";
 #elif BACKEND_TYPE == BACKEND_GLES
         return "OpenGL ES";
+#elif BACKEND_TYPE == BACKEND_DILIGENT
+        switch (MG_Diligent::DILIGENT_BACKEND_TYPE) {
+            case MG_Constants::Backend::BACKEND_DILIGENT_VULKAN:
+                return "DiligentEngine (Vulkan)";
+            case MG_Constants::Backend::BACKEND_DILIGENT_METAL:
+                return "DiligentEngine (Metal)";
+            case MG_Constants::Backend::BACKEND_DILIGENT_OPENGL:
+                return "DiligentEngine (OpenGL)";
+            default:
+                return "DiligentEngine (Unknown Backend)";
+        }
 #else
         return "<Unknown Backend>";
 #endif
@@ -24,11 +35,78 @@ namespace MG_GL::Getter {
         return "MobileGlumtl";
 #elif BACKEND_TYPE == BACKEND_GLES
         return "MobileGlues";
+#elif BACKEND_TYPE == BACKEND_DILIGENT
+        switch (MG_Diligent::DILIGENT_BACKEND_TYPE) {
+            case MG_Constants::Backend::BACKEND_DILIGENT_VULKAN:
+                return "MobileGlued-vk";
+            case MG_Constants::Backend::BACKEND_DILIGENT_METAL:
+                return "MobileGlued-mtl";
+            case MG_Constants::Backend::BACKEND_DILIGENT_OPENGL:
+                return "MobileGlued-gl";
+            default:
+                return "MobileGlued-unknown";
+        }
 #else
         return "<Unknown MobileGL Version>";
 #endif
     }
 
+    const std::string GetBackendGfxAPIName() {
+#if BACKEND_TYPE == BACKEND_VULKAN
+        return "Vulkan";
+#elif BACKEND_TYPE == BACKEND_METAL
+        return "Metal";
+#elif BACKEND_TYPE == BACKEND_GLES
+        return "OpenGL ES";
+#elif BACKEND_TYPE == BACKEND_DILIGENT
+        switch (MG_Diligent::DILIGENT_BACKEND_TYPE) {
+            case MG_Constants::Backend::BACKEND_DILIGENT_VULKAN:
+                return "Vulkan";
+            case MG_Constants::Backend::BACKEND_DILIGENT_METAL:
+                return "Metal";
+            case MG_Constants::Backend::BACKEND_DILIGENT_OPENGL:
+                return "OpenGL";
+            default:
+                return "<unknown>";
+        }
+#else
+        return "<Unknown Backend>";
+#endif
+    }
+
+    const std::string GetGPUName() {
+#if BACKEND_TYPE == BACKEND_DILIGENT
+        if (MG_Diligent::g_pDevice)
+            return MG_Diligent::g_pDevice->GetAdapterInfo().Description;
+
+        return "<not set yet>";
+#else
+        return "<unknown GPU>";
+#endif
+    }
+
+    const uint32_t GetBackendGfxAPIVersionMajor() {
+#if BACKEND_TYPE == BACKEND_DILIGENT
+        if (MG_Diligent::g_pDevice)
+            return MG_Diligent::g_pDevice->GetDeviceInfo().APIVersion.Major;
+
+        return 0;
+#else
+        return 0;
+#endif
+    }
+
+    const uint32_t GetBackendGfxAPIVersionMinor() {
+#if BACKEND_TYPE == BACKEND_DILIGENT
+        if (MG_Diligent::g_pDevice)
+            return MG_Diligent::g_pDevice->GetDeviceInfo().APIVersion.Minor;
+
+        return 0;
+#else
+        return 0;
+#endif
+    }
+
     void LogMGInfo() {
         std::string MGName = MG_GL::Getter::GetMGName() + " (MobileGL Core)";
 
@@ -79,6 +157,8 @@ namespace MG_GL::Getter {
                 std::to_string(minor)+"." + std::to_string(patch);
 #elif BACKEND_TYPE == BACKEND_GLES
         backendVersion = std::string((const char*)::GLES::glGetString(GL_VERSION));
+#elif BACKEND_TYPE == BACKEND_DILIGENT
+        backendVersion = "Diligent";
 #else
         backendVersion = "<Unknown Backend>";
 #endif

MG/MG_GL/Implementations/GL/Getter/BackendInfo.h

@@ -5,10 +5,12 @@
 #ifndef MOBILEGL_BACKENDINFO_H
 #define MOBILEGL_BACKENDINFO_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::Getter {
+    const std::string GetGPUName();
     const std::string GetBackendName();
+    const std::string GetBackendGfxAPIName();
+    const uint32_t GetBackendGfxAPIVersionMajor();
+    const uint32_t GetBackendGfxAPIVersionMinor();
     const std::string GetMGName();
     void LogMGInfo();
 }

MG/MG_GL/Implementations/GL/Getter/GL_Getter.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Getter.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
     static std::string rendererString;
@@ -15,7 +15,7 @@ namespace MG_GL::GL {
         MG_Util::Debug::LogD("glGetString, name: %s", MG_Util::Debug::GLEnumToString(name));
         switch (name) {
             case GL_VENDOR: 
-                return (const GLubyte *)"MobileGL-Dev";
+                return (const GLubyte *)"MobileGL-Dev (BZLZHH, Swung0x48, Tungsten)";
             case GL_VERSION: {
                 static std::string versionStr;
                 if (versionStr.empty()) {
@@ -44,7 +44,11 @@ namespace MG_GL::GL {
                 }
                 return (const GLubyte *)rendererString.c_str();
                  */
-                return (const GLubyte *)(MG_GL::Getter::GetMGName() + " (MobileGL Core) Renderer").c_str();
+                return (const GLubyte *)std::format("{} | {} {}.{}",
+                                                    MG_GL::Getter::GetGPUName(),
+                                                    MG_GL::Getter::GetBackendGfxAPIName(),
+                                                    MG_GL::Getter::GetBackendGfxAPIVersionMajor(),
+                                                    MG_GL::Getter::GetBackendGfxAPIVersionMinor()).c_str();
             }
             case GL_SHADING_LANGUAGE_VERSION:
                 return (const GLubyte *) "4.50 MobileGL with glslang";
@@ -183,7 +187,7 @@ namespace MG_GL::GL {
                 break;
             case GL_MAX_VERTEX_ATTRIBS:
                 // TODO: Check the real value
-                params[0] = 64;
+                params[0] = MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS;
                 break;
                 
             // Texture state

MG/MG_GL/Implementations/GL/Getter/GL_Getter.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GL_GETTER_H
 #define MOBILEGL_GL_GETTER_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
     const GLubyte* GetString(GLenum name);
     const GLubyte* GetStringi(GLenum name, GLuint index);

MG/MG_GL/Implementations/GL/Program/GL_Program.cpp

@@ -2,15 +2,197 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Program.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+    void CreateDefaultUBO(MG_Diligent::GLProgramInfo& programInfo, size_t uboSize) {
+        MG_Util::Debug::LogD("CreateDefaultUBO for program, size = %zu", uboSize);
+        if (uboSize > 0) {
+            Diligent::BufferDesc BuffDesc;
+            BuffDesc.Name = "MG_DEFAULT_UBO";
+            BuffDesc.Size = uboSize;
+            BuffDesc.Usage = Diligent::USAGE_DYNAMIC;
+            BuffDesc.BindFlags = Diligent::BIND_UNIFORM_BUFFER;
+            BuffDesc.CPUAccessFlags = Diligent::CPU_ACCESS_WRITE;
+            MG_Diligent::g_pDevice->CreateBuffer(BuffDesc, nullptr, &programInfo.pDefaultUBO);
+            MG_Util::Debug::LogD("Created default UBO: size = %zu", uboSize);
+        } else {
+            MG_Util::Debug::LogD("UBO size is 0, default UBO not created.");
+        }
+    }
+
+    size_t RecordUniformOffsets(MG_Diligent::GLProgramInfo& programInfo, const MG_Global::unordered_map<GLuint, std::string>& shaderSources) {
+        MG_Util::Debug::LogD("RecordUniformOffsets for program %u using SPIRV-Cross", programInfo.id);
+        size_t uboTotalSize = 0;
+        programInfo.uniformOffsets.clear();
+
+        GLuint reflectionShaderId = 0;
+        for (auto shaderId : programInfo.AttachedShadersID) {
+            auto& shaderObj = MG_State_T::programState->shaders_[shaderId];
+            MG_Util::Debug::LogD("  Checking attached shader %u, type: %s", shaderId, MG_Util::Debug::GLEnumToString(shaderObj.type));
+            if (shaderObj.type == GL_VERTEX_SHADER) {
+                reflectionShaderId = shaderId;
+                MG_Util::Debug::LogD("  Found vertex shader %u for reflection.", reflectionShaderId);
+                break;
+            }
+        }
+        if (!reflectionShaderId && !programInfo.AttachedShadersID.empty()) {
+            reflectionShaderId = programInfo.AttachedShadersID[0];
+            MG_Util::Debug::LogD("  No vertex shader found, using first attached shader %u for reflection.", reflectionShaderId);
+        }
+        if (!reflectionShaderId) {
+            MG_Util::Debug::LogW("  No suitable shader found for UBO reflection.");
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  Using shader %u for UBO reflection.", reflectionShaderId);
+        auto itSource = shaderSources.find(reflectionShaderId);
+        if (itSource == shaderSources.end()) {
+            MG_Util::Debug::LogE("  Could not find source for reflection shader %u.", reflectionShaderId);
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  Found source for shader %u.", reflectionShaderId);
+        MG_Util::Debug::LogD("  Shader source for reflection:\n%s", itSource->second.c_str());
+        std::string infoLog;
+        auto spirv = MG_Util::Program::CompileGLSLToSPIRV(
+                MG_State_T::programState->shaders_[reflectionShaderId].type,
+                itSource->second,
+                infoLog,
+                true
+        );
+        if (spirv.empty()) {
+            MG_Util::Debug::LogE("GLSL to SPIR-V compilation failed for shader %u: %s", reflectionShaderId, infoLog.c_str());
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  Successfully compiled GLSL to SPIR-V for shader %u.", reflectionShaderId);
+
+        spvc_context context = nullptr;
+        spvc_parsed_ir ir = nullptr;
+        spvc_compiler compiler = nullptr;
+        spvc_resources resources = nullptr;
+
+        if (spvc_context_create(&context) != SPVC_SUCCESS) {
+            MG_Util::Debug::LogE("SPIRV-Cross: Failed to create context: %s", spvc_context_get_last_error_string(context));
+            return uboTotalSize;
+        }
+
+        if (spvc_context_parse_spirv(context, spirv.data(), spirv.size(), &ir) != SPVC_SUCCESS) {
+            MG_Util::Debug::LogE("SPIRV-Cross: Failed to parse SPIR-V: %s", spvc_context_get_last_error_string(context));
+            spvc_context_destroy(context);
+            return uboTotalSize;
+        }
+
+        if (spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler) != SPVC_SUCCESS) {
+            MG_Util::Debug::LogE("SPIRV-Cross: Failed to create compiler: %s", spvc_context_get_last_error_string(context));
+            spvc_context_destroy(context);
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  spvc_context_create_compiler successful.");
+
+        if (spvc_compiler_create_shader_resources(compiler, &resources) != SPVC_SUCCESS) {
+            MG_Util::Debug::LogE("SPIRV-Cross: Failed to create shader resources: %s", spvc_context_get_last_error_string(context));
+            spvc_context_destroy(context);
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  spvc_compiler_create_shader_resources successful.");
+
+        const spvc_reflected_resource* ubo_list = nullptr;
+        size_t ubo_count = 0;
+        if (spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, &ubo_list, &ubo_count) != SPVC_SUCCESS) {
+            MG_Util::Debug::LogE("SPIRV-Cross: Failed to get resource list for UBO: %s", spvc_context_get_last_error_string(context));
+            spvc_context_destroy(context);
+            return uboTotalSize;
+        }
+
+        MG_Util::Debug::LogD("  Found %zu UBO resources.", ubo_count);
+
+        for (size_t i = 0; i < ubo_count; i++) {
+            const char* name = ubo_list[i].name;
+            if (!name || strcmp(name, "MG_DEFAULT_UBO") != 0) {
+                MG_Util::Debug::LogD("  Skipping UBO '%s'.", name ? name : "<unnamed>");
+                continue;
+            }
+
+            MG_Util::Debug::LogD("  Found UBO 'MG_DEFAULT_UBO'.");
+            spvc_type_id ubo_type_id = ubo_list[i].type_id;
+            spvc_type ubo_type = spvc_compiler_get_type_handle(compiler, ubo_type_id);
+
+            size_t currentUboSize = 0;
+            if (spvc_compiler_get_declared_struct_size(compiler, ubo_type, &currentUboSize) != SPVC_SUCCESS) {
+                MG_Util::Debug::LogE("SPIRV-Cross: Failed to get declared struct size: %s", spvc_context_get_last_error_string(context));
+                spvc_context_destroy(context);
+                return uboTotalSize;
+            }
+
+            uboTotalSize = currentUboSize;
+            MG_Util::Debug::LogD("  UBO 'MG_DEFAULT_UBO' total size: %zu", uboTotalSize);
+
+            size_t member_count = spvc_type_get_num_member_types(ubo_type);
+            for (size_t member_index = 0; member_index < member_count; member_index++) {
+                const char* member_name = programInfo.uniformBufferNames[member_index].c_str();
+
+                unsigned offset;
+                spvc_compiler_type_struct_member_offset(compiler, ubo_type, member_index, &offset);
+
+                if (member_name) {
+                    programInfo.uniformOffsets[member_name] = offset;
+                    MG_Util::Debug::LogD(
+                            "  Uniform '%s' offset = %u (via SPIRV-Cross)",
+                            member_name,
+                            offset
+                    );
+                }
+            }
+            break;
+        }
+
+        spvc_context_destroy(context);
+        MG_Util::Debug::LogD("RecordUniformOffsets completed for program %u, UBO total size: %zu", programInfo.id, uboTotalSize);
+        return uboTotalSize;
+    }
+    
+    Diligent::VALUE_TYPE ConvertGLTypeToDiligent(GLenum type) {
+        switch (type) {
+            case GL_FLOAT: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_VEC2: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_VEC3: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_VEC4: return Diligent::VT_FLOAT32;
+            case GL_SHORT: return Diligent::VT_INT16;
+            case GL_UNSIGNED_SHORT: return Diligent::VT_UINT16;
+            case GL_BYTE: return Diligent::VT_INT8;
+            case GL_UNSIGNED_BYTE: return Diligent::VT_UINT8;
+            case GL_INT: return Diligent::VT_INT32;
+            case GL_INT_VEC2: return Diligent::VT_INT32;
+            case GL_INT_VEC3: return Diligent::VT_INT32;
+            case GL_INT_VEC4: return Diligent::VT_INT32;
+            case GL_UNSIGNED_INT: return Diligent::VT_UINT32;
+            case GL_UNSIGNED_INT_VEC2: return Diligent::VT_UINT32;
+            case GL_UNSIGNED_INT_VEC3: return Diligent::VT_UINT32;
+            case GL_UNSIGNED_INT_VEC4: return Diligent::VT_UINT32;
+            case GL_FLOAT_MAT2: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT3: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT4: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT2x3: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT2x4: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT3x2: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT3x4: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT4x2: return Diligent::VT_FLOAT32;
+            case GL_FLOAT_MAT4x3: return Diligent::VT_FLOAT32;
+            default: return Diligent::VT_UNDEFINED;
+        }
+    }
+    
     GLuint CreateShader(GLenum type) {
         MG_Util::Debug::LogD("glCreateShader, type: %s", MG_Util::Debug::GLEnumToString(type));
         GLuint shader;
         GLenum result = MG_State::CreateShader(type, &shader);
         if (result == GL_NO_ERROR) {
             MG_Util::Debug::LogD("Created shader ID: %u", shader);
+            MG_Diligent::g_ShaderMap[shader] = nullptr;
             return shader;
         }
         MG_State::SetError(result);
@@ -34,15 +216,29 @@ namespace MG_GL::GL {
     void DeleteShader(GLuint shader) {
         MG_Util::Debug::LogD("glDeleteShader, shader: %u", shader);
         GLenum result = MG_State::DeleteShader(shader);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            // Do not delete the shader object since it may be used in glDraw*.
+            /*
+            auto it = MG_Diligent::g_ShaderMap.find(shader);
+            if (it != MG_Diligent::g_ShaderMap.end()) {
+                if (it->second) {
+                    it->second->Release();
+                }
+                MG_Diligent::g_ShaderMap.erase(it);
+            }
+            return;
+            */
+        }
         MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error deleting shader: %s", MG_Util::Debug::GLEnumToString(result));
+        MG_Util::Debug::LogW("Error deleting shader: %s", MG_Util::Debug::GLEnumToString(result));
     }
     
     void DeleteProgram(GLuint program) {
         MG_Util::Debug::LogD("glDeleteProgram, program: %u", program);
         GLenum result = MG_State::DeleteProgram(program);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error deleting program: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -50,13 +246,20 @@ namespace MG_GL::GL {
     void AttachShader(GLuint program, GLuint shader) {
         MG_Util::Debug::LogD("glAttachShader, program: %u, shader: %u", program, shader);
         GLenum result = MG_State::LinkShaderToProgram(program, shader);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error attaching shader: %s", MG_Util::Debug::GLEnumToString(result));
     }
     
     void ShaderSource(GLuint shader, GLsizei count, const GLchar *const*string, const GLint* length) {
         MG_Util::Debug::LogD("glShaderSource, shader: %u, count: %d", shader, count);
+        if (count > 0 && string != nullptr && string[0] != nullptr) {
+            MG_Util::Debug::LogD("Shader source for shader %u:\n%s", shader, string[0]);
+        } else {
+            MG_Util::Debug::LogD("Shader source for shader %u is empty or null.", shader);
+        }
         GLenum result = MG_State::UploadShaderSource(shader, count, (const GLchar **)string, length);
         if (result == GL_NO_ERROR) return;
         MG_State::SetError(result);
@@ -65,31 +268,206 @@ namespace MG_GL::GL {
     
     void CompileShader(GLuint shader) {
         MG_Util::Debug::LogD("glCompileShader, shader: %u", shader);
+        // Defer actual compilation to LinkProgram
         GLenum result = MG_State::BuildShaderStage(shader);
         if (result == GL_NO_ERROR) return;
         MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error compiling shader: %s", MG_Util::Debug::GLEnumToString(result));
+        MG_Util::Debug::LogE("Error marking shader for compilation: %s", MG_Util::Debug::GLEnumToString(result));
     }
     
     void LinkProgram(GLuint program) {
         MG_Util::Debug::LogD("glLinkProgram, program: %u", program);
         GLenum result = MG_State::FinalizeProgramPipeline(program);
-        if (result == GL_NO_ERROR) return;
+        if (result != GL_NO_ERROR) {
-        MG_State::SetError(result);
+            MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error linking program: %s", MG_Util::Debug::GLEnumToString(result));
+            MG_Util::Debug::LogE("Error linking program: %s", MG_Util::Debug::GLEnumToString(result));
+            return;
+        }
+        auto& programInfo = MG_Diligent::g_ProgramMap[program];
+        auto& programObj = MG_State_T::programState->programs_[program];
+
+        programInfo.id = program;
+
+        for (const auto& shaderId : programObj.attachedShaders) {
+            programInfo.AttachedShadersID.push_back(shaderId);
+        }
+
+        MG_Global::unordered_map<GLuint, std::string> shaderSources;
+        MG_Global::unordered_map<GLuint, std::string> finalShaderSources;
+        for (GLuint shaderId : programObj.attachedShaders) {
+            auto it = MG_State_T::programState->shaders_.find(shaderId);
+            if (it != MG_State_T::programState->shaders_.end() && !it->second.markedForDeletion) {
+                shaderSources[it->first] = it->second.source;
+//                    MG_Util::Program::RenameGLSLBuiltinsForVulkan(shaderSources[it->first]);
+            }
+        }
+
+        MG_Util::Program::GenerateDefaultUBOForGLSL_Multi(shaderSources, programInfo.uniformBufferNames);
+        MG_Util::Debug::LogD("LinkProgram: uniformBufferNames for %u:", program);
+        for (auto& name: programInfo.uniformBufferNames) {
+            MG_Util::Debug::LogD("    %s", name.c_str());
+        }
+
+        for (GLuint shaderId : programObj.attachedShaders) {
+            auto it = MG_State_T::programState->shaders_.find(shaderId);
+            if (it != MG_State_T::programState->shaders_.end() && !it->second.markedForDeletion) {
+                std::string shaderSource;
+                if (it->second.type == GL_VERTEX_SHADER) {
+                    std::string infoLog;
+
+                    const char* fragmentShaderSource = nullptr;
+                    for (GLuint otherShaderId : programObj.attachedShaders) {
+                        if (otherShaderId != shaderId && MG_State_T::programState->shaders_[otherShaderId].type == GL_FRAGMENT_SHADER) {
+                            fragmentShaderSource = shaderSources[otherShaderId].c_str();
+                            break;
+                        }
+                    }
+                    auto spirv = MG_Util::Program::CompileGLSLToSPIRV(it->second.type,
+                                                                      shaderSources[shaderId],
+                                                                      infoLog, true, GL_FRAGMENT_SHADER, fragmentShaderSource);
+                    if (spirv.empty()) {
+                        MG_Util::Debug::LogE("Failed to compile vertex shader %u: %s", shaderId,
+                                             infoLog.c_str());
+                        continue;
+                    }
+
+                    shaderSource = MG_Util::Program::BindInputLayoutLocationsForGLSL(spirv,
+                                                                                     programObj.attribLocations);
+                } else if (it->second.type == GL_FRAGMENT_SHADER) {
+                    std::string infoLog;
+
+                    const char* vertexShaderSource = nullptr;
+                    for (GLuint otherShaderId : programObj.attachedShaders) {
+                        if (otherShaderId != shaderId && MG_State_T::programState->shaders_[otherShaderId].type == GL_VERTEX_SHADER) {
+                            vertexShaderSource = shaderSources[otherShaderId].c_str();
+                            break;
+                        }
+                    }
+
+                    auto spirv = MG_Util::Program::CompileGLSLToSPIRV(it->second.type,
+                                                                      shaderSources[shaderId],
+                                                                      infoLog, true,
+                                                                      GL_VERTEX_SHADER, vertexShaderSource);
+                    if (spirv.empty()) {
+                        MG_Util::Debug::LogE("Failed to compile fragment shader %u to SPIRV: %s", shaderId,
+                                             infoLog.c_str());
+                        continue;
+                    }
+
+                    shaderSource = MG_Util::Program::CompileSPIRVToGLSL(spirv, 450, false, true);
+                } else {
+                    shaderSource = it->second.source;
+                }
+                finalShaderSources[it->first] = shaderSource;
+            }
+        }
+
+
+        MG_Util::Debug::LogD("Shader sources after UBO generation for program %u:", program);
+        for (const auto& [shaderId, source] : finalShaderSources) {
+            MG_Util::Debug::LogD("  Program %u Shader %u:\n%s", program, shaderId, source.c_str());
+        }
+
+        size_t uboTotalSize = RecordUniformOffsets(programInfo, finalShaderSources);
+        CreateDefaultUBO(programInfo, uboTotalSize);
+
+        // Compile attached shaders
+        for (GLuint shaderId : programInfo.AttachedShadersID) {
+            auto& shaderObj = MG_State_T::programState->shaders_[shaderId];
+            // Compile only if not already compiled in Diligent
+            if (MG_Diligent::g_ShaderMap.find(shaderId) == MG_Diligent::g_ShaderMap.end() || MG_Diligent::g_ShaderMap[shaderId] == nullptr) {
+                GLenum shaderType = shaderObj.type;
+                std::string sourceStr = finalShaderSources[shaderId];
+                MG_Util::Program::RenameGLSLBuiltinsForVulkan(sourceStr);
+                MG_Util::Debug::LogD("Shader ID: %u, type: %s\nConverted source:\n%s",
+                                     shaderId, MG_Util::Debug::GLEnumToString(shaderType), sourceStr.c_str());
+
+                Diligent::ShaderCreateInfo ShaderCI;
+                ShaderCI.Source = sourceStr.c_str();
+                ShaderCI.EntryPoint = "main";
+
+                switch (shaderType) {
+                    case GL_VERTEX_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_VERTEX; break;
+                    case GL_FRAGMENT_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_PIXEL; break;
+                    case GL_GEOMETRY_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_GEOMETRY; break;
+                    case GL_TESS_CONTROL_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_HULL; break;
+                    case GL_TESS_EVALUATION_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_DOMAIN; break;
+                    case GL_COMPUTE_SHADER: ShaderCI.Desc.ShaderType = Diligent::SHADER_TYPE_COMPUTE; break;
+                    default: MG_Util::Debug::LogW("Unsupported shader type for compilation: %u", shaderType); continue;
+                }
+
+                ShaderCI.Desc.Name = ("Shader_" + std::to_string(shaderId)).c_str();
+                ShaderCI.SourceLanguage = Diligent::SHADER_SOURCE_LANGUAGE_GLSL_VERBATIM;
+
+                Diligent::IShader* pShader = nullptr;
+                Diligent::RefCntAutoPtr<Diligent::IDataBlob> pMsg;
+                MG_Diligent::g_pDevice->CreateShader(ShaderCI, &pShader, &pMsg);
+
+                if (pShader) {
+                    MG_Diligent::g_ShaderMap[shaderId] = pShader;
+                    programInfo.AttachedShaders.push_back(pShader);
+                    shaderObj.compiled = UncertainBool::True;
+                    shaderObj.compileStatus = GL_TRUE;
+                    MG_Util::Debug::LogD("Successfully compiled shader ID: %u for program %u", shaderId, program);
+                } else {
+                    shaderObj.compiled = UncertainBool::False;
+                    shaderObj.compileStatus = GL_FALSE;
+                    MG_Util::Debug::LogE("Failed to compile shader ID: %u for program %u. \ncompiler info:\n%s", shaderId, program, pMsg->GetConstDataPtr<char>());
+                }
+            } else {
+                // Shader already compiled, just add to programInfo
+                programInfo.AttachedShaders.push_back(MG_Diligent::g_ShaderMap[shaderId]);
+            }
+        }
+
+        programInfo.inputLayout.clear();
+
+        auto* pVAO = MG_State_T::vertexArrayState->GetCurrentVAO();
+        if (!pVAO) return;
+
+//            for (const auto& [index, attrib] : pVAO->attribs) {
+        for (uint32_t index = 0; index < MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS; ++index) {
+            const auto& attrib = pVAO->attribs[index];
+            if (attrib.enabled) {
+                Diligent::LayoutElement elem;
+                elem.InputIndex = index;
+                elem.BufferSlot = 0;
+                elem.NumComponents = attrib.size;
+                elem.ValueType = ConvertGLTypeToDiligent(attrib.type);
+                elem.IsNormalized = attrib.normalized;
+                elem.RelativeOffset = static_cast<GLuint>(reinterpret_cast<size_t>(attrib.pointer));
+
+                programInfo.inputLayout.push_back(elem);
+            }
+        }
+
+        programInfo.psoDirty = true;
+        programInfo.psoStateHash = 0;
+        programInfo.uniformStages.clear();
+        programInfo.programObj = MG_State_T::programState->programs_[program];
+
+        if (programInfo.pResourceBinding) {
+            programInfo.pResourceBinding->Release();
+            programInfo.pResourceBinding = nullptr;
+        }
+
+        programObj.linked = true;
+        programObj.linkStatus = GL_TRUE;
     }
     
     void UseProgram(GLuint program) {
         MG_Util::Debug::LogD("glUseProgram, program: %u", program);
         GLenum result = MG_State::ActivateRenderProgram(program);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error using program: %s", MG_Util::Debug::GLEnumToString(result));
     }
     
     void BindAttribLocation(GLuint program, GLuint index, const GLchar* name) {
         MG_Util::Debug::LogD("glBindAttribLocation, program: %u, index: %u, name: %s", program, index, name);
-        GLenum result = MG_State::DefineProgramAttributeBinding(program, index, name);
+        GLenum result = MG_State::DefineProgramAttributeLocation(program, index, name);
         if (result == GL_NO_ERROR) return;
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error binding attribute: %s", MG_Util::Debug::GLEnumToString(result));
@@ -97,7 +475,7 @@ namespace MG_GL::GL {
     
     GLint GetAttribLocation(GLuint program, const GLchar* name) {
         MG_Util::Debug::LogD("glGetAttribLocation, program: %u, name: %s", program, name);
-        GLint location = MG_State::QueryProgramAttributeBinding(program, name);
+        GLint location = MG_State::QueryProgramAttributeLocation(program, name);
         if (location != -1) return location;
         MG_State::SetError(GL_INVALID_OPERATION);
         MG_Util::Debug::LogE("Attribute not found: %s", name);
@@ -119,7 +497,7 @@ namespace MG_GL::GL {
         GLenum result = MG_State::QueryProgramStateIntVector(program, pname, params);
         if (result == GL_NO_ERROR) return;
         MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error getting program param: %s", MG_Util::Debug::GLEnumToString(result));
+        MG_Util::Debug::LogW("Error getting program param: %s", MG_Util::Debug::GLEnumToString(result));
     }
     
     void GetShaderiv(GLuint shader, GLenum pname, GLint* params) {

MG/MG_GL/Implementations/GL/Program/GL_Program.h

@@ -5,9 +5,9 @@
 #ifndef MOBILEGL_GL_PROGRAM_H
 #define MOBILEGL_GL_PROGRAM_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
+    Diligent::VALUE_TYPE ConvertGLTypeToDiligent(GLenum type);
+    
     GLuint CreateShader(GLenum type);
     GLuint CreateProgram();
     void DeleteShader(GLuint shader);

MG/MG_GL/Implementations/GL/Texture/GL_Texture.cpp

@@ -2,9 +2,187 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_Texture.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
+  
+    Diligent::TEXTURE_FORMAT ConvertInternalFormat(GLint internalFormat) {
+        switch (internalFormat) {
+            case GL_RGBA: return Diligent::TEX_FORMAT_RGBA8_UNORM;
+            case GL_RGBA8: return Diligent::TEX_FORMAT_RGBA8_UNORM;
+            case GL_RGBA8_SNORM: return Diligent::TEX_FORMAT_RGBA8_SNORM;
+            case GL_RGBA16F: return Diligent::TEX_FORMAT_RGBA16_FLOAT;
+            case GL_RGBA32F: return Diligent::TEX_FORMAT_RGBA32_FLOAT;
+
+            case GL_RGB: return Diligent::TEX_FORMAT_RGBA8_UNORM;
+            case GL_RGB8: return Diligent::TEX_FORMAT_RGBA8_UNORM; // Diligent doesn't have RGB8, promote to RGBA8
+            case GL_RGB16F: return Diligent::TEX_FORMAT_RGBA16_FLOAT; // Promote
+            case GL_RGB32F: return Diligent::TEX_FORMAT_RGBA32_FLOAT; // Promote
+
+            case GL_DEPTH_COMPONENT: return Diligent::TEX_FORMAT_D32_FLOAT;
+            case GL_DEPTH_COMPONENT16: return Diligent::TEX_FORMAT_D16_UNORM;
+            case GL_DEPTH_COMPONENT24: return Diligent::TEX_FORMAT_D24_UNORM_S8_UINT; // No D24_UNORM, use with stencil
+            case GL_DEPTH_COMPONENT32: return Diligent::TEX_FORMAT_D32_FLOAT;
+            case GL_DEPTH_COMPONENT32F: return Diligent::TEX_FORMAT_D32_FLOAT;
+
+            case GL_DEPTH_STENCIL: return Diligent::TEX_FORMAT_D24_UNORM_S8_UINT;
+            case GL_DEPTH24_STENCIL8: return Diligent::TEX_FORMAT_D24_UNORM_S8_UINT;
+            case GL_DEPTH32F_STENCIL8: return Diligent::TEX_FORMAT_D32_FLOAT_S8X24_UINT;
+
+            case GL_RED: return Diligent::TEX_FORMAT_R8_UNORM;
+            case GL_R8: return Diligent::TEX_FORMAT_R8_UNORM;
+            case GL_R16F: return Diligent::TEX_FORMAT_R16_FLOAT;
+            case GL_R32F: return Diligent::TEX_FORMAT_R32_FLOAT;
+
+            case GL_RG: return Diligent::TEX_FORMAT_RG8_UNORM;
+            case GL_RG8: return Diligent::TEX_FORMAT_RG8_UNORM;
+            case GL_RG16F: return Diligent::TEX_FORMAT_RG16_FLOAT;
+            case GL_RG32F: return Diligent::TEX_FORMAT_RG32_FLOAT;
+
+            default: return Diligent::TEX_FORMAT_RGBA8_UNORM;
+        }
+    }
+  
+    size_t GetBytesPerPixel(GLenum format, GLenum type) {
+        int components = 0;
+        switch (format) {
+            case GL_RED: components = 1; break;
+            case GL_RG: components = 2; break;
+            case GL_RGB: components = 3; break;
+            case GL_RGBA: components = 4; break;
+            case GL_DEPTH_COMPONENT: components = 1; break;
+            case GL_DEPTH_STENCIL: components = 2; break;
+            default: components = 4; break;
+        }
+
+        size_t typeSize = 0;
+        switch (type) {
+            case GL_UNSIGNED_BYTE:
+            case GL_BYTE: typeSize = 1; break;
+            case GL_UNSIGNED_SHORT:
+            case GL_SHORT: typeSize = 2; break;
+            case GL_UNSIGNED_INT:
+            case GL_INT:
+            case GL_FLOAT: typeSize = 4; break;
+            default: typeSize = 1; break;
+        }
+
+        return components * typeSize;
+    }
+
+    Diligent::FILTER_TYPE ConvertCompareFilter(Diligent::FILTER_TYPE& filter, bool compare) {
+        if (compare) {
+            switch (filter) {
+                case Diligent::FILTER_TYPE_POINT: return Diligent::FILTER_TYPE_COMPARISON_POINT;
+                case Diligent::FILTER_TYPE_LINEAR: return Diligent::FILTER_TYPE_COMPARISON_LINEAR;
+                case Diligent::FILTER_TYPE_ANISOTROPIC: return Diligent::FILTER_TYPE_COMPARISON_ANISOTROPIC;
+                default: return filter;
+            }
+        } else {
+            switch (filter) {
+                case Diligent::FILTER_TYPE_COMPARISON_POINT: return Diligent::FILTER_TYPE_POINT;
+                case Diligent::FILTER_TYPE_COMPARISON_LINEAR: return Diligent::FILTER_TYPE_LINEAR;
+                case Diligent::FILTER_TYPE_COMPARISON_ANISOTROPIC: return Diligent::FILTER_TYPE_ANISOTROPIC;
+                default: return filter;
+            }
+        }
+    }
+
+    bool IsCompareFilter(Diligent::FILTER_TYPE filter) {
+        switch (filter) {
+            case Diligent::FILTER_TYPE_COMPARISON_POINT: return true;
+            case Diligent::FILTER_TYPE_COMPARISON_LINEAR: return true;
+            case Diligent::FILTER_TYPE_COMPARISON_ANISOTROPIC: return true;
+            default: return false;
+        }
+    }
+
+    void FillFilterTypeFromGLEnum(GLenum pname, GLenum param, Diligent::FILTER_TYPE& minFilter, Diligent::FILTER_TYPE& magFilter, Diligent::FILTER_TYPE& mipFilter) {
+        if (pname == GL_TEXTURE_COMPARE_MODE) {
+            bool compare = (param == GL_COMPARE_REF_TO_TEXTURE);
+            minFilter = ConvertCompareFilter(minFilter, compare);
+            magFilter = ConvertCompareFilter(magFilter, compare);
+            mipFilter = ConvertCompareFilter(mipFilter, compare);
+            return;
+        }
+
+        Diligent::FILTER_TYPE* pFilter = nullptr;
+        if (pname == GL_TEXTURE_MIN_FILTER) {
+            pFilter = &minFilter;
+        } else if (pname == GL_TEXTURE_MAG_FILTER) {
+            pFilter = &magFilter;
+        } else {
+            MG_Util::Debug::LogD("FillFilterTypeFromGLEnum: not allowed pname!");
+            return;
+        }
+
+        Diligent::FILTER_TYPE& filter = *pFilter;
+
+        bool filterIsCompare = IsCompareFilter(filter);
+        bool mipFilterIsCompare = IsCompareFilter(mipFilter);
+
+        switch (param) {
+            case GL_NEAREST:
+                filter = Diligent::FILTER_TYPE_POINT;
+                if (pname == GL_TEXTURE_MIN_FILTER)
+                    mipFilter = Diligent::FILTER_TYPE_POINT;
+                break;
+            case GL_LINEAR:
+                filter = Diligent::FILTER_TYPE_LINEAR;
+                if (pname == GL_TEXTURE_MIN_FILTER)
+                    mipFilter = Diligent::FILTER_TYPE_POINT;
+                break;
+            case GL_NEAREST_MIPMAP_NEAREST:
+                filter = Diligent::FILTER_TYPE_POINT;
+                mipFilter = Diligent::FILTER_TYPE_POINT;
+                break;
+            case GL_LINEAR_MIPMAP_NEAREST:
+                filter = Diligent::FILTER_TYPE_LINEAR;
+                mipFilter = Diligent::FILTER_TYPE_POINT;
+                break;
+            case GL_NEAREST_MIPMAP_LINEAR:
+                filter = Diligent::FILTER_TYPE_POINT;
+                mipFilter = Diligent::FILTER_TYPE_LINEAR;
+                break;
+            case GL_LINEAR_MIPMAP_LINEAR:
+                filter = Diligent::FILTER_TYPE_LINEAR;
+                mipFilter = Diligent::FILTER_TYPE_LINEAR;
+                break;
+            default:
+                break;
+        }
+
+        filter = ConvertCompareFilter(filter, filterIsCompare);
+        mipFilter = ConvertCompareFilter(mipFilter, mipFilterIsCompare);
+    }
+
+    Diligent::COMPARISON_FUNCTION ConvertComparsionFunc(GLint param) {
+        switch (param) {
+            case GL_LEQUAL: return Diligent::COMPARISON_FUNC_LESS_EQUAL;
+            case GL_GEQUAL: return Diligent::COMPARISON_FUNC_GREATER_EQUAL;
+            case GL_LESS: return Diligent::COMPARISON_FUNC_LESS;
+            case GL_GREATER: return Diligent::COMPARISON_FUNC_GREATER;
+            case GL_EQUAL: return Diligent::COMPARISON_FUNC_EQUAL;
+            case GL_NOTEQUAL: return Diligent::COMPARISON_FUNC_NOT_EQUAL;
+            case GL_ALWAYS: return Diligent::COMPARISON_FUNC_ALWAYS;
+            case GL_NEVER: return Diligent::COMPARISON_FUNC_NEVER;
+            default:
+                MG_Util::Debug::LogE("%s: not handled param: %s", __func__, MG_Util::Debug::GLEnumToString(param));
+                return Diligent::COMPARISON_FUNC_NEVER;
+        }
+    }
+
+    Diligent::TEXTURE_ADDRESS_MODE ConvertAddressMode(GLint param) {
+        switch (param) {
+            case GL_REPEAT: return Diligent::TEXTURE_ADDRESS_WRAP;
+            case GL_CLAMP_TO_EDGE: return Diligent::TEXTURE_ADDRESS_CLAMP;
+            case GL_MIRRORED_REPEAT: return Diligent::TEXTURE_ADDRESS_MIRROR;
+            default:
+                MG_Util::Debug::LogE("%s: not handled param: %s", __func__, MG_Util::Debug::GLEnumToString(param));
+                return Diligent::TEXTURE_ADDRESS_WRAP;
+        }
+    }
+  
     void ActiveTexture(GLenum texture) {
         MG_Util::Debug::LogD("glActiveTexture, texture: %d", texture);
         GLenum result = MG_State::BindTextureUnit(texture);
@@ -17,8 +195,9 @@ namespace MG_GL::GL {
     void BindTexture(GLenum target, GLuint texture) {
         MG_Util::Debug::LogD("glBindTexture, target: %d, texture: %d", target, texture);
         GLenum result = MG_State::BindTexture(target, texture);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
             return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -26,8 +205,27 @@ namespace MG_GL::GL {
     void DeleteTextures(GLsizei n, const GLuint* textures) {
         MG_Util::Debug::LogD("glDeleteTextures, n: %d, textures: %p", n, textures);
         GLenum result = MG_State::DeleteTextures(n, textures);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            for (GLsizei i = 0; i < n; ++i) {
+                GLuint tex = textures[i];
+                auto texIt = MG_Diligent::g_TextureMap.find(tex);
+                if (texIt != MG_Diligent::g_TextureMap.end()) {
+                    if (texIt->second) {
+                        texIt->second->Release();
+                    }
+                    MG_Diligent::g_TextureMap.erase(texIt);
+                }
+
+                auto srvIt = MG_Diligent::g_TextureViewMap.find(tex);
+                if (srvIt != MG_Diligent::g_TextureViewMap.end()) {
+                    if (srvIt->second) {
+                        srvIt->second->Release();
+                    }
+                    MG_Diligent::g_TextureViewMap.erase(srvIt);
+                }
+            }
             return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }
@@ -35,52 +233,453 @@ namespace MG_GL::GL {
     void GenTextures(GLsizei n, GLuint* textures) {
         MG_Util::Debug::LogD("glGenTextures, n: %d, textures: %p", n, textures);
         GLenum result = MG_State::CreateTextures(n, textures);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            for (GLsizei i = 0; i < n; ++i) {
+                MG_Diligent::g_TextureMap[textures[i]] = nullptr;
+                MG_Diligent::g_TextureViewMap[textures[i]] = nullptr;
+            }
             return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }
 
-    void TexImage2D(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, 
+    Diligent::Uint32 CalculateMipLevels(GLsizei width, GLsizei height) {
+        Diligent::Uint32 levels = 1;
+        GLsizei size = std::max(width, height);
+
+        while (size > 1) {
+            size >>= 1;
+            levels++;
+        }
+
+        return levels;
+    }
+
+    void TexImage2D(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border,
                     GLenum format, GLenum type, const void* data) {
         MG_Util::Debug::LogD("glTexImage2D, target: %d, level: %d, internalFormat: %d, width: %d, height: %d, format: %d, type: %d, data: %p",
                              target, level, internalFormat, width, height, format, type, data);
-        GLenum result = MG_State::UploadTexture2D(target, level, internalFormat, width, height, border, format, type, data);
+
-        if (result == GL_NO_ERROR)
+        GLenum result = MG_State::UploadTexture2D(target, level, internalFormat, width, height,
+                                                  border, format, type, data);
+        if (result != GL_NO_ERROR) {
+            MG_State::SetError(result);
+            MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
             return;
-        MG_State::SetError(result);
+        }
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
+
+        MG_Util::Debug::LogD("TexImage2D: MG_State::UploadTexture2D successful.");
+
+        auto& texState = *MG_State_T::textureState;
+        auto activeUnit = texState.activeTextureUnit_;
+        auto unitState = &texState.textureUnits_[activeUnit];
+        GLuint boundTextureID = unitState->GetBoundTexture(target);
+
+        if (boundTextureID == 0) {
+            MG_Util::Debug::LogD("TexImage2D: No texture bound to active unit. Returning.");
+            return;
+        }
+
+        Diligent::ITexture* pTexture = nullptr;
+        Diligent::ITextureView* pSRV = nullptr;
+
+        auto texIt = MG_Diligent::g_TextureMap.find(boundTextureID);
+        if (texIt != MG_Diligent::g_TextureMap.end()) {
+            pTexture = texIt->second;
+        }
+        auto srvIt = MG_Diligent::g_TextureViewMap.find(boundTextureID);
+        if (srvIt != MG_Diligent::g_TextureViewMap.end()) {
+            pSRV = srvIt->second;
+        }
+
+        Diligent::TEXTURE_FORMAT newFormat = ConvertInternalFormat(internalFormat);
+        MG_Util::Debug::LogD("TexImage2D: New internalFormat: %d maps to Diligent format: %d",
+                             internalFormat, newFormat);
+
+        bool needCreateTexture = false;
+        bool isBaseLevel = (level == 0);
+
+        if (!pTexture) {
+            MG_Util::Debug::LogD("TexImage2D: No existing Diligent texture found for GL name %u. Creating new.", boundTextureID);
+            needCreateTexture = true;
+        } else {
+            Diligent::TextureDesc existingDesc = pTexture->GetDesc();
+
+            if (isBaseLevel &&
+                (existingDesc.Width != static_cast<Diligent::Uint32>(width) ||
+                 existingDesc.Height != static_cast<Diligent::Uint32>(height) ||
+                 existingDesc.Format != newFormat)) {
+
+                MG_Util::Debug::LogD("TexImage2D: Base level properties changed. Recreating texture.");
+                MG_Util::Debug::LogD("TexImage2D: Old (W:%u, H:%u, F:%d), New (W:%d, H:%d, F:%d)",
+                                     existingDesc.Width, existingDesc.Height, existingDesc.Format,
+                                     width, height, newFormat);
+
+                needCreateTexture = true;
+            } else if (level >= static_cast<GLint>(existingDesc.MipLevels)) {
+                MG_Util::Debug::LogD("TexImage2D: Level %d exceeds current mip levels (%d). Recreating texture.",
+                                     level, existingDesc.MipLevels);
+                needCreateTexture = true;
+            }
+        }
+
+        if (needCreateTexture) {
+            if (pSRV) {
+                MG_Util::Debug::LogD("TexImage2D: Releasing existing SRV %p", (void*)pSRV);
+                pSRV->Release();
+                MG_Diligent::g_TextureViewMap[boundTextureID] = nullptr;
+                pSRV = nullptr;
+            }
+
+            if (pTexture) {
+                MG_Util::Debug::LogD("TexImage2D: Releasing existing texture %p", (void*)pTexture);
+                pTexture->Release();
+                MG_Diligent::g_TextureMap[boundTextureID] = nullptr;
+                pTexture = nullptr;
+            }
+
+            Diligent::Uint32 mipLevels = 1;
+             if (isBaseLevel) {
+                mipLevels = CalculateMipLevels(width, height);
+            } else if (pTexture) {
+                mipLevels = pTexture->GetDesc().MipLevels;
+            }
+
+            Diligent::TextureDesc TexDesc;
+            if constexpr (MG_Global::Common::LogLevel <= MG_Constants::Common::LOG_LEVEL_DEBUG) {
+                TexDesc.Name = std::format("GL Texture {}", boundTextureID).c_str();
+            }
+            TexDesc.Type = Diligent::RESOURCE_DIM_TEX_2D;
+            TexDesc.Width = width;
+            TexDesc.Height = height;
+            TexDesc.Format = newFormat;
+            TexDesc.MipLevels = mipLevels;
+
+            bool isDepthStencil = false;
+            switch (internalFormat) {
+                case GL_DEPTH_COMPONENT:
+                case GL_DEPTH_COMPONENT16:
+                case GL_DEPTH_COMPONENT24:
+                case GL_DEPTH_COMPONENT32:
+                case GL_DEPTH_COMPONENT32F:
+                case GL_DEPTH_STENCIL:
+                case GL_DEPTH24_STENCIL8:
+                case GL_DEPTH32F_STENCIL8:
+                    isDepthStencil = true;
+                    break;
+                default:
+                    isDepthStencil = false;
+            }
+
+            if (isDepthStencil) {
+                TexDesc.BindFlags = Diligent::BIND_SHADER_RESOURCE | Diligent::BIND_DEPTH_STENCIL;
+            } else {
+                TexDesc.BindFlags = Diligent::BIND_SHADER_RESOURCE | Diligent::BIND_RENDER_TARGET;
+            }
+
+            MG_Util::Debug::LogD("TexImage2D: Creating new Diligent texture with Width: %d, Height: %d, Format: %d, MipLevels: %u",
+                                 width, height, newFormat, mipLevels);
+
+            Diligent::ITexture* newTexture = nullptr;
+            MG_Diligent::g_pDevice->CreateTexture(TexDesc, nullptr, &newTexture);
+
+            if (newTexture) {
+                MG_Util::Debug::LogD("TexImage2D: Created new Diligent texture %p for GL name %u.",
+                                     (void*)newTexture, boundTextureID);
+
+                Diligent::TextureViewDesc SRVDesc;
+                SRVDesc.ViewType = Diligent::TEXTURE_VIEW_SHADER_RESOURCE;
+                SRVDesc.TextureDim = Diligent::RESOURCE_DIM_TEX_2D;
+                SRVDesc.MostDetailedMip = 0;
+                SRVDesc.NumMipLevels = TexDesc.MipLevels;
+
+                Diligent::ITextureView* newSRV = nullptr;
+                newTexture->CreateView(SRVDesc, &newSRV);
+                MG_Util::Debug::LogD("TexImage2D: Created new SRV %p for texture.", (void*)newSRV);
+
+                MG_Diligent::g_TextureMap[boundTextureID] = newTexture;
+                MG_Diligent::g_TextureViewMap[boundTextureID] = newSRV;
+
+                pTexture = newTexture;
+                pSRV = newSRV;
+            } else {
+                MG_Util::Debug::LogE("TexImage2D: Failed to create new texture!");
+                return;
+            }
+        }
+
+        if (pTexture && data) {
+            Diligent::TextureSubResData SubResData;
+            SubResData.pData = data;
+            SubResData.Stride = width * GetBytesPerPixel(format, type);
+
+            Diligent::Box UpdateBox;
+            UpdateBox.MinX = 0;
+            UpdateBox.MaxX = width;
+            UpdateBox.MinY = 0;
+            UpdateBox.MaxY = height;
+            UpdateBox.MinZ = 0;
+            UpdateBox.MaxZ = 1;
+
+            MG_Util::Debug::LogD("TexImage2D: Updating texture. Level: %d, Box: [%u,%u]x[%u,%u], Stride: %llu",
+                                 level, UpdateBox.MinX, UpdateBox.MaxX, UpdateBox.MinY, UpdateBox.MaxY, SubResData.Stride);
+
+            MG_Diligent::g_pContext->UpdateTexture(
+                    pTexture,
+                    level,
+                    0,
+                    UpdateBox,
+                    SubResData,
+                    Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION,
+                    Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+            );
+            MG_Util::Debug::LogD("TexImage2D: UpdateTexture completed for level %d.", level);
+        }
     }
 
     void TexParameterf(GLenum target, GLenum pname, GLfloat param) {
         MG_Util::Debug::LogD("glTexParameterf, target: %d, pname: %d, param: %f", target, pname, param);
         GLenum result = MG_State::SetTexturePropertyFloat(target, pname, param);
-        if (result == GL_NO_ERROR)
+        if (result == GL_NO_ERROR) {
+            MG_State::SetError(result);
+            MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
             return;
-        MG_State::SetError(result);
+        }
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
+
+        // TODO: Fix sampler
+        auto& texState = *MG_State_T::textureState;
+        auto activeUnit = texState.activeTextureUnit_;
+        auto unitState = &texState.textureUnits_[activeUnit];
+        GLuint boundTextureID = unitState->GetBoundTexture(target);
+
+        if (boundTextureID == 0) {
+            MG_Util::Debug::LogD("TexParameterf: No texture bound. Skipping sampler update.");
+            return;
+        }
+
+        Diligent::SamplerDesc SamDesc;
+        auto it = MG_Diligent::g_SamplerMap.find(boundTextureID);
+        if (it != MG_Diligent::g_SamplerMap.end() && it->second) {
+            SamDesc = it->second->GetDesc();
+        } else {
+            SamDesc.MinFilter = Diligent::FILTER_TYPE_LINEAR;
+            SamDesc.MagFilter = Diligent::FILTER_TYPE_LINEAR;
+            SamDesc.AddressU = Diligent::TEXTURE_ADDRESS_WRAP;
+            SamDesc.AddressV = Diligent::TEXTURE_ADDRESS_WRAP;
+            SamDesc.AddressW = Diligent::TEXTURE_ADDRESS_WRAP;
+        }
+
+        switch (pname) {
+            case GL_TEXTURE_MIN_FILTER:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MinFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            case GL_TEXTURE_MAG_FILTER:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MinFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            case GL_TEXTURE_WRAP_S:
+                SamDesc.AddressU = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_WRAP_T:
+                SamDesc.AddressV = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_WRAP_R:
+                SamDesc.AddressW = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_MIN_LOD:
+                SamDesc.MinLOD = (float)param;
+                break;
+            case GL_TEXTURE_MAX_LOD:
+                SamDesc.MaxLOD = param;
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                SamDesc.ComparisonFunc = ConvertComparsionFunc(param);
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MinFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            default:
+                MG_Util::Debug::LogE("%s: not handled pname: %s", __func__, MG_Util::Debug::GLEnumToString(pname));
+        }
+
+        Diligent::ISampler* pNewSampler = nullptr;
+        MG_Diligent::g_pDevice->CreateSampler(SamDesc, &pNewSampler);
+
+        if (it != MG_Diligent::g_SamplerMap.end()) {
+            if (it->second) {
+                it->second->Release();
+            }
+            it->second = pNewSampler;
+        } else {
+            MG_Diligent::g_SamplerMap[boundTextureID] = pNewSampler;
+        }
+
+        MG_Util::Debug::LogD("TexParameterf: Updated sampler for texture %u", boundTextureID);
     }
 
     void TexParameteri(GLenum target, GLenum pname, GLint param) {
         MG_Util::Debug::LogD("glTexParameteri, target: %d, pname: %d, param: %d", target, pname, param);
         GLenum result = MG_State::SetTexturePropertyInt(target, pname, param);
-        if (result == GL_NO_ERROR)
+        if (result != GL_NO_ERROR) {
+            MG_State::SetError(result);
+            MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
             return;
-        MG_State::SetError(result);
+        }
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
+
+        // TODO: Fix sampler
+        auto& texState = *MG_State_T::textureState;
+        auto activeUnit = texState.activeTextureUnit_;
+        auto unitState = &texState.textureUnits_[activeUnit];
+        GLuint boundTextureID = unitState->GetBoundTexture(target);
+        
+        if (boundTextureID == 0) {
+            MG_Util::Debug::LogD("TexParameteri: No texture bound. Skipping sampler update.");
+            return;
+        }
+        
+        Diligent::SamplerDesc SamDesc;
+        auto it = MG_Diligent::g_SamplerMap.find(boundTextureID);
+        if (it != MG_Diligent::g_SamplerMap.end() && it->second) {
+            SamDesc = it->second->GetDesc();
+        } else {
+            SamDesc.MinFilter = Diligent::FILTER_TYPE_LINEAR;
+            SamDesc.MagFilter = Diligent::FILTER_TYPE_LINEAR;
+            SamDesc.AddressU = Diligent::TEXTURE_ADDRESS_WRAP;
+            SamDesc.AddressV = Diligent::TEXTURE_ADDRESS_WRAP;
+            SamDesc.AddressW = Diligent::TEXTURE_ADDRESS_WRAP;
+        }
+        
+        switch (pname) {
+            case GL_TEXTURE_MIN_FILTER:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MinFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            case GL_TEXTURE_MAG_FILTER:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MagFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            case GL_TEXTURE_WRAP_S:
+                SamDesc.AddressU = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_WRAP_T:
+                SamDesc.AddressV = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_WRAP_R:
+                SamDesc.AddressW = ConvertAddressMode(param);
+                break;
+            case GL_TEXTURE_MIN_LOD:
+                SamDesc.MinLOD = (float)param;
+                break;
+            case GL_TEXTURE_MAX_LOD:
+                SamDesc.MaxLOD = (float)param;
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                SamDesc.ComparisonFunc = ConvertComparsionFunc(param);
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                FillFilterTypeFromGLEnum(pname, param, SamDesc.MinFilter, SamDesc.MagFilter, SamDesc.MipFilter);
+                break;
+            default:
+                MG_Util::Debug::LogE("%s: not handled pname: %s", __func__, MG_Util::Debug::GLEnumToString(pname));
+        }
+        
+        Diligent::ISampler* pNewSampler = nullptr;
+        MG_Diligent::g_pDevice->CreateSampler(SamDesc, &pNewSampler);
+        
+        if (it != MG_Diligent::g_SamplerMap.end()) {
+            if (it->second) {
+                it->second->Release();
+            }
+            it->second = pNewSampler;
+        } else {
+            MG_Diligent::g_SamplerMap[boundTextureID] = pNewSampler;
+        }
+        
+        MG_Util::Debug::LogD("TexParameteri: Updated sampler for texture %u", boundTextureID);
     }
 
     void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width,
                        GLsizei height, GLenum format, GLenum type, const void* pixels) {
         MG_Util::Debug::LogD("glTexSubImage2D, target: %d, level: %d, xoffset: %d, yoffset: %d, width: %d, height: %d, format: %d, type: %d, pixels: %p",
                              target, level, xoffset, yoffset, width, height, format, type, pixels);
+
         GLenum result = MG_State::UpdateTextureRegion2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
-        if (result == GL_NO_ERROR)
+        if (result != GL_NO_ERROR) {
+            MG_State::SetError(result);
+            MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
             return;
-        MG_State::SetError(result);
+        }
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
+
+        auto& texState = *MG_State_T::textureState;
+        auto activeUnit = texState.activeTextureUnit_;
+        auto unitState = &texState.textureUnits_[activeUnit];
+        GLuint boundTextureID = unitState->GetBoundTexture(target);
+
+        MG_Util::Debug::LogD("TexSubImage2D: bound texture: GL name %u", boundTextureID);
+
+        if (boundTextureID == 0) {
+            MG_Util::Debug::LogD("TexSubImage2D: No texture bound to active unit. Skipping update.");
+            return;
+        }
+
+        Diligent::ITexture* pTexture = nullptr;
+        auto texIt = MG_Diligent::g_TextureMap.find(boundTextureID);
+        if (texIt != MG_Diligent::g_TextureMap.end()) {
+            pTexture = texIt->second;
+        }
+
+        if (!pTexture) {
+            MG_Util::Debug::LogW("TexSubImage2D: Diligent texture not found for GL name %u", boundTextureID);
+            return;
+        }
+
+        const auto& texDesc = pTexture->GetDesc();
+        if (!(texDesc.BindFlags & Diligent::BIND_SHADER_RESOURCE)) {
+            MG_Util::Debug::LogE("TexSubImage2D: Texture %u does not have BIND_SHADER_RESOURCE flag", boundTextureID);
+            return;
+        }
+
+        auto rowLength = MG_State::QueryPixelStoreInt(GL_UNPACK_ROW_LENGTH);
+        rowLength = ((rowLength > 0) ? rowLength : width);
+        auto skipRows = MG_State::QueryPixelStoreInt(GL_UNPACK_SKIP_ROWS);
+        auto skipPixels = MG_State::QueryPixelStoreInt(GL_UNPACK_SKIP_PIXELS);
+        auto bpp = GetBytesPerPixel(format, type);
+        char* pixelStart = (char*)pixels + bpp * (rowLength * skipRows + skipPixels);
+
+        Diligent::TextureSubResData SubResData;
+        SubResData.Stride = rowLength * bpp;
+        SubResData.pData = pixelStart;
+
+        Diligent::Box UpdateBox;
+        UpdateBox.MinX = xoffset;
+        UpdateBox.MaxX = xoffset + width;
+        UpdateBox.MinY = yoffset;
+        UpdateBox.MaxY = yoffset + height;
+        UpdateBox.MinZ = 0;
+        UpdateBox.MaxZ = 1;
+
+        MG_Util::Debug::LogD("TexSubImage2D: Got GL_UNPACK_ROW_LENGTH = %d", rowLength);
+
+        MG_Util::Debug::LogD("TexSubImage2D: Updating region [%d,%d]-[%d,%d] at level %d, %d bytes",
+                             xoffset, yoffset, xoffset+width, yoffset+height, level, width * height * GetBytesPerPixel(format, type));
+
+//        if (MG_Diligent::IsInRenderPass) {
+//            MG_Diligent::g_pContext->EndRenderPass();
+//            MG_Diligent::IsInRenderPass = false;
+//        }
+        
+        MG_Diligent::g_pContext->UpdateTexture(
+                pTexture,
+                level,
+                0,
+                UpdateBox,
+                SubResData,
+                Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION,
+                Diligent::RESOURCE_STATE_TRANSITION_MODE_TRANSITION
+        );
+
+        MG_Util::Debug::LogD("TexSubImage2D: Update completed successfully");
     }
 
+
     void GetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params) {
         MG_Util::Debug::LogD("glGetTexLevelParameteriv, target: %d, level: %d, pname: %d, params: %p",
                              target, level, pname, params);
@@ -90,4 +689,10 @@ namespace MG_GL::GL {
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }
-}
+
+    void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height) {
+        MG_Util::Debug::LogD("glCopyTexSubImage2D, target: %d, level: %d, xoffset: %d, yoffset: %d, x: %d, y: %d, width: %d, height: %d",
+                             target, level, xoffset, yoffset, x, y, width, height);
+
+    }
+}

MG/MG_GL/Implementations/GL/Texture/GL_Texture.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GL_TEXTURE_H
 #define MOBILEGL_GL_TEXTURE_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
     void ActiveTexture(GLenum texture);
     void BindTexture(GLenum target, GLuint texture);
@@ -17,6 +15,7 @@ namespace MG_GL::GL {
     void TexParameteri(GLenum target, GLenum pname, GLint param);
     void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels);
     void GetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params);
+     void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
 }
 
 #endif //MOBILEGL_GL_TEXTURE_H

MG/MG_GL/Implementations/GL/VertexArray/GL_VertexArray.cpp

@@ -2,13 +2,15 @@
 // Created by BZLZHH on 2025/3/15.
 //
 
-#include "GL_VertexArray.h"
+#include "../../../../Includes.h"
 
 namespace MG_GL::GL {
     void GenVertexArrays(GLsizei n, GLuint* arrays) {
         MG_Util::Debug::LogD("glGenVertexArrays, n: %d, arrays: %p", n, arrays);
         GLenum result = MG_State::GenVertexArraysNames(n, arrays);
-        if (result == GL_NO_ERROR) return;
+        if (result == GL_NO_ERROR) {
+            return;
+        }
         MG_State::SetError(result);
         MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
     }

MG/MG_GL/Implementations/GL/VertexArray/GL_VertexArray.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GL_VERTEXARRAY_H
 #define MOBILEGL_GL_VERTEXARRAY_H
 
-#include "../../../../Includes.h"
-
 namespace MG_GL::GL {
     void GenVertexArrays(GLsizei n, GLuint* arrays);
     void BindVertexArray(GLuint array);

MG/MG_GL/Implementations/GLX/GLXFuncsDefinitions/GLXFuncsDefinitions.cpp

@@ -2,7 +2,7 @@
 // Created by Swung 0x48 on 2025/6/20.
 //
 
-#include "GLXFuncsDefinitions.h"
+#include "../../../../Includes.h"
 
 MG_EXPORT void* glXGetProcAddress(const char *name) {
     return MG_GL::GLX::GetProcAddress(name);

MG/MG_GL/Implementations/GLX/GLXFuncsDefinitions/GLXFuncsDefinitions.h

@@ -5,6 +5,4 @@
 #ifndef MOBILEGL_GLX_FUNCS_DEFINITIONS_H
 #define MOBILEGL_GLX_FUNCS_DEFINITIONS_H
 
-#include "../../../../Includes.h"
-
 #endif //MOBILEGL_GLX_FUNCS_DEFINITIONS_H

MG/MG_GL/State/Buffer/BufferState.cpp

@@ -4,38 +4,33 @@
 
 // TODO: Add more gl error check for buffer state manager.
 
-#include "BufferState.h"
+#include "../../../Includes.h"
 
-GLenum BufferState::GenName(GLuint *buffer) {
+//GLenum BufferState::GenName(GLuint *buffer) {
-    MG_Util::Debug::LogD("MG_State: Buffer: GenName");
+//    MG_Util::Debug::LogD("MG_State: Buffer: GenName");
-    if (!buffer)
+//    if (!buffer)
-        return GL_INVALID_VALUE;
+//        return GL_INVALID_VALUE;
-
+//
-    GLuint id = 0;
+//    GLuint id = 0;
-    if (freeId_.empty()) {
+//    if (freeId_.empty()) {
-        id = lastId_++;
+//        id = lastId_++;
-    } else {
+//    } else {
-        id = freeId_.back();
+//        id = freeId_.back();
-        freeId_.pop_back();
+//        freeId_.pop_back();
-    }
+//    }
-
+//
-    *buffer = id;
+//    *buffer = id;
-    MG_Util::Debug::LogD("MG_State: Buffer: Gen new name %d", id);
+//    MG_Util::Debug::LogD("MG_State: Buffer: Gen new name %d", id);
-
+//
-    return GL_NO_ERROR;
+//    return GL_NO_ERROR;
-}
+//}
 
 GLenum BufferState::GenNameN(GLsizei n, GLuint* buffers) {
     MG_Util::Debug::LogD("MG_State: Buffer: GenNameN called with n=%d", n);
-    if (n < 0) return GL_INVALID_VALUE;
+    if (n < 0 || buffers == nullptr) return GL_INVALID_VALUE;
+
+    indexGenerator_.Generate(n, buffers);
 
-    for (GLsizei i = 0; i < n; ++i) {
-        GLenum result = GenName(&buffers[i]);
-        if (result != GL_NO_ERROR) {
-            MG_Util::Debug::LogE("MG_State: Buffer: GenNameN failed with error 0x%x", result);
-            return result;
-        }
-    }
     MG_Util::Debug::LogD("MG_State: Buffer: GenNameN created buffers successfully");
     return GL_NO_ERROR;
 }
@@ -48,7 +43,14 @@ GLenum BufferState::Create(GLuint buffer) {
     if (ValidateAllocatedHandle(buffer))
         return GL_INVALID_VALUE;
 
-    BufferObject& obj = buffers_[buffer];
+    if (bufferObjects_.size() <= buffer) {
+        bufferObjects_.resize(buffer + 1);
+    }
+    if (bufferObjects_[buffer] == nullptr) {
+        bufferObjects_[buffer] = std::make_unique<BufferObject>();
+    }
+
+    BufferObject& obj = *GetBufferObject(buffer);
     MG_Util::Debug::LogD("MG_State: Buffer: Create created buffer %d", buffer);
     obj.generated = true;
     obj.dirty = true;
@@ -71,9 +73,12 @@ GLenum BufferState::CommitStorage(GLenum target, GLsizeiptr size, const void* da
     if (it == currentBindings_.end() || it->second == 0)
         return GL_INVALID_OPERATION;
 
-    BufferObject& obj = buffers_[it->second];
+    BufferObject& obj = *GetBufferObject(it->second);
     MG_Util::Debug::LogD("MG_State: Buffer: CommitStorage get buffer object %u at target 0x%x",it->second,target);
     obj.usage = usage;
+    obj.isDynamic = (usage == GL_DYNAMIC_DRAW || usage == GL_DYNAMIC_READ ||
+                     usage == GL_DYNAMIC_COPY || usage == GL_STREAM_DRAW);
+    obj.data.reserve(std::bit_ceil((size_t)size));
     obj.data.resize(size);
     if (data) {
         memcpy(obj.data.data(), data, size);
@@ -94,7 +99,7 @@ GLenum BufferState::CommitStorageRegion(GLenum target, GLintptr offset, GLsizeip
     if (it == currentBindings_.end() || it->second == 0)
         return GL_INVALID_OPERATION;
 
-    BufferObject& obj = buffers_[it->second];
+    BufferObject& obj = *GetBufferObject(it->second);
     MG_Util::Debug::LogD("MG_State: Buffer: BufferSubData get buffer object %u at target 0x%x", it->second, target);
 
     if (static_cast<size_t>(offset + size) > obj.data.size()) return GL_INVALID_VALUE;
@@ -123,7 +128,7 @@ GLenum BufferState::AcquireBufferMemoryRange(GLenum target, GLintptr offset, GLs
         return GL_INVALID_OPERATION;
     }
 
-    BufferObject& obj = buffers_[it->second];
+    BufferObject& obj = *GetBufferObject(it->second);
     MG_Util::Debug::LogD("MG_State: Buffer: AcquireBufferMemoryRange operating on buffer %u", it->second);
     if (obj.isMapped) {
         MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: buffer %u is already mapped", it->second);
@@ -159,7 +164,7 @@ GLenum BufferState::SyncBufferMemory(GLenum target, GLintptr offset, GLsizeiptr
     if (it == currentBindings_.end() || it->second == 0)
         return GL_INVALID_OPERATION;
 
-    BufferObject& obj = buffers_[it->second];
+    BufferObject& obj = *GetBufferObject(it->second);
     if (!obj.isMapped || !(obj.mapAccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT))
         return GL_INVALID_OPERATION;
 
@@ -183,8 +188,8 @@ GLenum BufferState::CopyBufferRange(GLenum readTarget, GLenum writeTarget, GLint
     if (readBuffer == 0 || writeBuffer == 0 || readBuffer == writeBuffer)
         return GL_INVALID_OPERATION;
 
-    BufferObject& src = buffers_[readBuffer];
+    BufferObject& src = *GetBufferObject(readBuffer);
-    BufferObject& dst = buffers_[writeBuffer];
+    BufferObject& dst = *GetBufferObject(writeBuffer);
 
     if (static_cast<size_t>(readOffset + size) > src.data.size() ||
         static_cast<size_t>(writeOffset + size) > dst.data.size())
@@ -204,7 +209,7 @@ GLenum BufferState::AcquireBufferMemory(GLenum target, GLenum access, void** map
         default:
             flags = access;
     }
-    return AcquireBufferMemoryRange(target, 0, buffers_[currentBindings_[target]].data.size(), flags, mappedPointer);
+    return AcquireBufferMemoryRange(target, 0, GetBufferObject(currentBindings_[target])->data.size(), flags, mappedPointer);
 }
 
 GLenum BufferState::ReleaseBufferMemory(GLenum target) {
@@ -215,7 +220,7 @@ GLenum BufferState::ReleaseBufferMemory(GLenum target) {
     if (it == currentBindings_.end() || it->second == 0)
         return GL_INVALID_OPERATION;
 
-    BufferObject& obj = buffers_[it->second];
+    BufferObject& obj = *GetBufferObject(it->second);
     if (!obj.isMapped)
         return GL_INVALID_OPERATION;
 
@@ -232,28 +237,28 @@ GLenum BufferState::ReleaseBufferMemory(GLenum target) {
     return GL_NO_ERROR;
 }
 
-bool BufferState::ValidateAllocatedHandle(GLuint buffer) {
+bool BufferState::ValidateAllocatedHandle(GLuint buffer) const {
-    bool isValid = buffers_.find(buffer) != buffers_.end();
+    bool isValid = buffer != 0 && bufferObjects_.size() > buffer && bufferObjects_[buffer] != nullptr;
     MG_Util::Debug::LogD("MG_State: Buffer: ValidateAllocatedHandle called on buffer %u returns %d", buffer, isValid);
     return isValid;
 }
 
-bool BufferState::ValidateGeneratedName(GLuint buffer) {
+bool BufferState::ValidateGeneratedName(GLuint buffer) const {
-    bool inFreeList = std::find(freeId_.begin(), freeId_.end(), buffer) != freeId_.end();
+    bool isValid = indexGenerator_.IsValid(buffer);
-    bool lessThanLast = buffer < lastId_; // lastId_ is not generated yet
+    MG_Util::Debug::LogD("MG_State: Buffer: ValidateGeneratedName called on buffer %u returns %s", buffer, isValid ? "true" : "false");
-    MG_Util::Debug::LogD("MG_State: Buffer: ValidateGeneratedName called on buffer %u returns %d", buffer, lessThanLast && !inFreeList);
+    return isValid;
-    return lessThanLast && !inFreeList;
 }
 
 void BufferState::Delete(GLuint buffer) {
-    buffers_.erase(buffer);
+    MG_Util::Debug::LogD("MG_State: Buffer: Delete buffer %u", buffer);
-    if (ValidateGeneratedName(buffer))
+    if (bufferObjects_.size() > buffer)
-        // TODO: Prevent the object that uses a freeId from conflicting with legacy object in the backend.
+        bufferObjects_[buffer].reset();
-        //freeId_.emplace_back(buffer);
+    indexGenerator_.Delete(buffer);
+
     for (auto& [target, id] : currentBindings_) {
         if (id == buffer) id = 0;
     }
-    MG_Util::Debug::LogD("MG_State: Buffer: Delete buffer %u", buffer);
+    MG_Util::Debug::LogD("MG_State: Buffer: Delete buffer %u successfully", buffer);
 }
 
 GLenum BufferState::DeleteN(GLsizei n, const GLuint* buffers) {
@@ -268,8 +273,9 @@ GLenum BufferState::DeleteN(GLsizei n, const GLuint* buffers) {
 }
 
 bool BufferState::IsValidTarget_(GLenum target) {
-    MG_Util::Debug::LogD("MG_State: Buffer: IsValidTarget_ called with target=0x%x,result=%d", target, !(MG_Constants::Buffer::VALID_TARGETS.find(target) == MG_Constants::Buffer::VALID_TARGETS.end()));
+    bool ret = MG_Constants::Common::Contains(target, MG_Constants::Buffer::VALID_TARGETS);
-    return !(MG_Constants::Buffer::VALID_TARGETS.find(target) == MG_Constants::Buffer::VALID_TARGETS.end());
+    MG_Util::Debug::LogD("MG_State: Buffer: IsValidTarget_ called with target=0x%x,result=%d", target, ret);
+    return ret;
 }
 
 GLenum BufferState::QueryPropertyIntVector(GLenum target, GLenum pname, GLint* params) const {
@@ -282,7 +288,7 @@ GLenum BufferState::QueryPropertyIntVector(GLenum target, GLenum pname, GLint* p
         return GL_INVALID_ENUM;
     }
     
-    if (MG_Constants::Buffer::VALID_PARAM_NAMES.find(pname) == MG_Constants::Buffer::VALID_PARAM_NAMES.end()) {
+    if (!MG_Constants::Common::Contains(pname, MG_Constants::Buffer::VALID_PARAM_NAMES)) {
         return GL_INVALID_ENUM;
     }
     
@@ -291,12 +297,12 @@ GLenum BufferState::QueryPropertyIntVector(GLenum target, GLenum pname, GLint* p
         return GL_INVALID_OPERATION;
     }
     GLuint bufferId = bindingIt->second;
-    auto bufferIt = buffers_.find(bufferId);
+
-    if (bufferIt == buffers_.end()) {
+    if (!ValidateAllocatedHandle(bufferId)) {
         return GL_INVALID_OPERATION;
     }
     
-    const BufferObject& buffer = bufferIt->second;
+    const BufferObject& buffer = *bufferObjects_[bufferId];
     
     switch (pname) {
         case GL_BUFFER_ACCESS:
@@ -325,4 +331,15 @@ GLuint BufferState::GetCurrentBinding(GLenum target) const {
         return it->second;
     }
     return 0;
-}
+}
+
+BufferState::BufferObject* BufferState::GetBufferObject(GLuint buffer) {
+    if (bufferObjects_.size() <= buffer) {
+        return nullptr;
+    }
+//    if (bufferObjects_[buffer] == nullptr) {
+//        raise(SIGTRAP);
+////        bufferObjects_[buffer] = std::make_unique<BufferObject>();
+//    }
+    return bufferObjects_[buffer].get();
+}

MG/MG_GL/State/Buffer/BufferState.h

@@ -4,14 +4,8 @@
 
 #ifndef MOBILEGL_BUFFERSTATE_H
 #define MOBILEGL_BUFFERSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
 
 class BufferState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-
 public:
     struct BufferObject {
         GLenum usage = GL_STATIC_DRAW;
@@ -20,6 +14,7 @@ public:
         bool dirty = false; // TODO: encapsulate this with an public API to RHI
         bool isMapped = false;
         bool generated = false;
+        bool isDynamic = false;
         GLenum accessMode = GL_READ_WRITE;
         GLintptr mapOffset = 0;
         GLsizeiptr mapLength = 0;
@@ -27,7 +22,7 @@ public:
     };
 
     // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum GenName(GLuint* buffer);
+//    GLenum GenName(GLuint* buffer);
     GLenum GenNameN(GLsizei n, GLuint* buffers);
     GLenum Create(GLuint buffer);
     GLenum Bind(GLenum target, GLuint buffer);
@@ -41,16 +36,20 @@ public:
     GLenum QueryPropertyIntVector(GLenum target, GLenum pname, GLint* params) const;
     GLenum DeleteN(GLsizei n, const GLuint* buffers);
     
-    bool ValidateAllocatedHandle(GLuint buffer);
+    bool ValidateAllocatedHandle(GLuint buffer) const;
-    bool ValidateGeneratedName(GLuint buffer);
+    bool ValidateGeneratedName(GLuint buffer) const;
     void Delete(GLuint buffer);
     GLuint GetCurrentBinding(GLenum target) const;
 
-    unordered_map<GLenum, GLuint> currentBindings_;
+    BufferObject* GetBufferObject(GLuint buffer);
-    unordered_map<GLuint, BufferObject> buffers_;
+
+    MG_Global::unordered_map<GLenum, GLuint> currentBindings_;
+//    MG_Global::unordered_map<GLuint, BufferObject> buffers_;
 private:
-    std::vector<GLuint> freeId_;
+//    std::vector<GLuint> freeId_;
-    GLuint lastId_ = 1;
+//    GLuint lastId_ = 1;
+    IndexGenerator<GLuint> indexGenerator_;
+    std::vector<std::unique_ptr<BufferObject>> bufferObjects_;
 
     static bool IsValidTarget_(GLenum target);
 };

MG/MG_GL/State/Common/CommonState.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/4/30.
 //
 
-#include "CommonState.h"
+#include "../../../Includes.h"
 
 CommonState::CommonState() {
     pixelStoreParams[GL_PACK_ALIGNMENT] = 4;
@@ -10,7 +10,7 @@ CommonState::CommonState() {
 }
 
 GLenum CommonState::SetPixelStoreInt(GLenum pname, GLint param) {
-    if (MG_Constants::PixelStore::VALID_PARAM_NAMES.find(pname) == MG_Constants::PixelStore::VALID_PARAM_NAMES.end()) {
+    if (!MG_Constants::Common::Contains(pname, MG_Constants::PixelStore::VALID_PARAM_NAMES)) {
         return GL_INVALID_ENUM;
     }
 
@@ -61,7 +61,7 @@ GLint CommonState::QueryPixelStoreInt(GLenum pname) {
 }
 
 GLenum CommonState::Enable(GLenum cap) {
-    if (MG_Constants::CommonState::VALID_CAPS.find(cap) == MG_Constants::CommonState::VALID_CAPS.end()) {
+    if (!MG_Constants::Common::Contains(cap, MG_Constants::CommonState::VALID_CAPS)) {
         return GL_INVALID_ENUM;
     }
     capabilities[cap] = true;
@@ -69,7 +69,7 @@ GLenum CommonState::Enable(GLenum cap) {
 }
 
 GLenum CommonState::Disable(GLenum cap) {
-    if (MG_Constants::CommonState::VALID_CAPS.find(cap) == MG_Constants::CommonState::VALID_CAPS.end()) {
+    if (!MG_Constants::Common::Contains(cap, MG_Constants::CommonState::VALID_CAPS)) {
         return GL_INVALID_ENUM;
     }
     capabilities[cap] = false;
@@ -77,8 +77,8 @@ GLenum CommonState::Disable(GLenum cap) {
 }
 
 GLenum CommonState::BlendFunc(GLenum sfactor, GLenum dfactor) {
-    if (MG_Constants::Blend::VALID_FACTORS.find(sfactor) == MG_Constants::Blend::VALID_FACTORS.end() ||
+    if (!MG_Constants::Common::Contains(sfactor, MG_Constants::Blend::VALID_FACTORS) ||
-        MG_Constants::Blend::VALID_FACTORS.find(dfactor) == MG_Constants::Blend::VALID_FACTORS.end()) {
+        !MG_Constants::Common::Contains(dfactor, MG_Constants::Blend::VALID_FACTORS)) {
         return GL_INVALID_ENUM;
     }
 
@@ -89,10 +89,10 @@ GLenum CommonState::BlendFunc(GLenum sfactor, GLenum dfactor) {
 
 GLenum CommonState::BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB,
                                       GLenum srcAlpha, GLenum dstAlpha) {
-    if (MG_Constants::Blend::VALID_FACTORS.find(srcRGB) == MG_Constants::Blend::VALID_FACTORS.end() ||
+    if (!MG_Constants::Common::Contains(srcRGB, MG_Constants::Blend::VALID_FACTORS) ||
-        MG_Constants::Blend::VALID_FACTORS.find(dstRGB) == MG_Constants::Blend::VALID_FACTORS.end() ||
+        !MG_Constants::Common::Contains(dstRGB, MG_Constants::Blend::VALID_FACTORS) ||
-        MG_Constants::Blend::VALID_FACTORS.find(srcAlpha) == MG_Constants::Blend::VALID_FACTORS.end() ||
+        !MG_Constants::Common::Contains(srcAlpha, MG_Constants::Blend::VALID_FACTORS) ||
-        MG_Constants::Blend::VALID_FACTORS.find(dstAlpha) == MG_Constants::Blend::VALID_FACTORS.end()) {
+        !MG_Constants::Common::Contains(dstAlpha, MG_Constants::Blend::VALID_FACTORS)) {
         return GL_INVALID_ENUM;
     }
     blendSrcRGB = srcRGB;
@@ -133,10 +133,11 @@ GLenum CommonState::ColorMask(GLboolean red, GLboolean green, GLboolean blue, GL
 }
 
 GLenum CommonState::DepthFunc(GLenum func) {
-    if (MG_Constants::Depth::VALID_FUNCS.find(func) == MG_Constants::Depth::VALID_FUNCS.end()) {
+    if (!MG_Constants::Common::Contains(func, MG_Constants::Depth::VALID_FUNCS)) {
         return GL_INVALID_ENUM;
     }
     depthFunc = func;
+    MG_Util::Debug::LogD("%s(%s)", __func__, MG_Util::Debug::GLEnumToString(func));
     return GL_NO_ERROR;
 }
 

MG/MG_GL/State/Common/CommonState.h

@@ -4,13 +4,8 @@
 
 #ifndef MOBILEGL_COMMONSTATE_H
 #define MOBILEGL_COMMONSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
 
 class CommonState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
 public:
     // Viewport
     GLint viewport[4] = {0, 0, 0, 0};
@@ -19,7 +14,7 @@ public:
     GLboolean colorMask[4] = {GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE};
     
     // Pixel storage parameters
-    unordered_map<GLenum, GLint> pixelStoreParams;
+    MG_Global::unordered_map<GLenum, GLint> pixelStoreParams;
 
     // Blend state
     GLenum blendSrcRGB = GL_ONE;
@@ -37,7 +32,7 @@ public:
     GLboolean depthMask = GL_TRUE;
 
     // Capability enables
-    unordered_map<GLenum, bool> capabilities;
+    MG_Global::unordered_map<GLenum, bool> capabilities;
     
     CommonState();
     

MG/MG_GL/State/Core/GLState.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/4/4.
 //
 
-#include "GLState.h"
+#include "../../../Includes.h"
 
 std::queue<GLenum> MG_State_T::glErrorQueue;
 TextureState* MG_State_T::textureState = nullptr;
@@ -298,12 +298,12 @@ namespace MG_State {
         return MG_State_T::programState->ActivateRenderProgram(program);
     }
 
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name) {
+    GLenum DefineProgramAttributeLocation(GLuint program, GLuint index, const GLchar* name) {
-        return MG_State_T::programState->DefineProgramAttributeBinding(program, index, name);
+        return MG_State_T::programState->DefineProgramAttributeLocation(program, index, name);
     }
 
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name) {
+    GLint QueryProgramAttributeLocation(GLuint program, const GLchar* name) {
-        return MG_State_T::programState->QueryProgramAttributeBinding(program, name);
+        return MG_State_T::programState->QueryProgramAttributeLocation(program, name);
     }
 
     GLint QueryProgramUniformLocation(GLuint program, const GLchar* name) {

MG/MG_GL/State/Core/GLState.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GLSTATE_H
 #define MOBILEGL_GLSTATE_H
 
-#include "../../../Includes.h"
-
 struct MG_State_T {
     static std::queue<GLenum> glErrorQueue;
     static TextureState* textureState;
@@ -95,8 +93,8 @@ namespace MG_State {
     GLenum BuildShaderStage(GLuint shader);
     GLenum FinalizeProgramPipeline(GLuint program);
     GLenum ActivateRenderProgram(GLuint program);
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name);
+    GLenum DefineProgramAttributeLocation(GLuint program, GLuint index, const GLchar* name);
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name);
+    GLint QueryProgramAttributeLocation(GLuint program, const GLchar* name);
     GLint QueryProgramUniformLocation(GLuint program, const GLchar* name);
     GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params);
     GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params);

MG/MG_GL/State/Framebuffer/FramebufferState.cpp

@@ -5,10 +5,6 @@
 // TODO: Add more gl error check for framebuffer state manager.
 // TODO: Check if the state machine really meets up to OpenGL 3 standard.
 
-#include "FramebufferState.h"
-
-// Re-Include Includes.h, cuz of the absence of GLState.h
-#undef MOBILEGL_GLSTATE_H
 #include "../../../Includes.h"
 
 GLenum FramebufferState::Create(GLuint* framebuffer) {
@@ -42,7 +38,7 @@ GLenum FramebufferState::Delete(GLuint framebuffer) {
 }
 
 GLenum FramebufferState::Bind(GLenum target, GLuint framebuffer) {
-    if (MG_Constants::Framebuffer::VALID_TARGETS.find(target) == MG_Constants::Framebuffer::VALID_TARGETS.end()) 
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Framebuffer::VALID_TARGETS))
         return GL_INVALID_ENUM;
     if (framebuffer != 0 && !ValidateHandle(framebuffer))
         return GL_INVALID_OPERATION;
@@ -57,10 +53,28 @@ GLenum FramebufferState::Bind(GLenum target, GLuint framebuffer) {
 
 GLenum FramebufferState::AttachTexture2D(GLenum target, GLenum attachment,
                                          GLenum textarget, GLuint texture, GLint level) {
-    if (MG_Constants::Framebuffer::VALID_ATTACHMENTS.find(attachment) == MG_Constants::Framebuffer::VALID_ATTACHMENTS.end() ||
+    if (!MG_Constants::Common::Contains(attachment, MG_Constants::Framebuffer::VALID_ATTACHMENTS) ||
-        MG_Constants::Texture::VALID_TARGETS.find(textarget) == MG_Constants::Texture::VALID_TARGETS.end())
+        !MG_Constants::Common::Contains(textarget, MG_Constants::Texture::VALID_TARGETS))
         return GL_INVALID_ENUM;
-    if (target == GL_FRAMEBUFFER) target = GL_DRAW_FRAMEBUFFER;
+    if (target == GL_FRAMEBUFFER) {
+        target = GL_DRAW_FRAMEBUFFER;
+
+//        if (currentBindings_[GL_READ_FRAMEBUFFER] == currentBindings_[GL_DRAW_FRAMEBUFFER]) {
+//            target = GL_DRAW_FRAMEBUFFER;
+//        } else {
+//            if (currentBindings_[GL_READ_FRAMEBUFFER] != 0) {
+//                GLenum err = AttachTexture2D(GL_READ_FRAMEBUFFER, attachment, textarget, texture, level);
+//                if (err != GL_NO_ERROR)
+//                    return err;
+//            }
+//            if (currentBindings_[GL_DRAW_FRAMEBUFFER] != 0) {
+//                GLenum err = AttachTexture2D(GL_DRAW_FRAMEBUFFER, attachment, textarget, texture, level);
+//                if (err != GL_NO_ERROR)
+//                    return err;
+//            }
+//            return GL_NO_ERROR;
+//        }
+    }
     FramebufferObject* fbo = GetCurrentFBO(target);
     if (!fbo) return GL_INVALID_OPERATION;
     if (texture != 0 && !MG_State_T::textureState->IsTexture(texture))

MG/MG_GL/State/Framebuffer/FramebufferState.h

@@ -4,9 +4,6 @@
 
 #ifndef MOBILEGL_FRAMEBUFFERSTATE_H
 #define MOBILEGL_FRAMEBUFFERSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
 
 struct FramebufferAttachment {
     GLenum type = GL_NONE;
@@ -17,7 +14,7 @@ struct FramebufferAttachment {
 
 struct FramebufferObject {
     bool generated = false;
-    ankerl::unordered_map<GLenum, FramebufferAttachment> attachments;
+    MG_Global::unordered_map<GLenum, FramebufferAttachment> attachments;
     GLenum status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
     GLsizei width = 0;
     GLsizei height = 0;
@@ -35,10 +32,10 @@ public:
     GLenum ValidateCompleteness(GLenum target);
     FramebufferObject* GetCurrentFBO(GLenum target);
     
-    ankerl::unordered_map<GLenum, GLuint> currentBindings_; // READ/DRAW
+    MG_Global::unordered_map<GLenum, GLuint> currentBindings_; // READ/DRAW
     
 private:
-    ankerl::unordered_map<GLuint, FramebufferObject> framebuffers_;
+    MG_Global::unordered_map<GLuint, FramebufferObject> framebuffers_;
     std::set<GLuint> freeIds_;
     GLuint lastId_ = 0;
     bool ValidateHandle(GLuint framebuffer);

MG/MG_GL/State/Program/ProgramState.cpp

@@ -4,11 +4,6 @@
 // TODO: Add more gl error check for buffer state manager.
 // TODO: Check if the state machine really meets up to OpenGL 3 standard.
 
-#include "ProgramState.h"
-
-// Re-Include Includes.h, cuz of the absence of Program/DebugTool.h and Program/GLSLTool.cpp.
-#undef MOBILEGL_GLSLTOOL_H
-#undef MOBILEGL_PROGRAM_DEBUGTOOL_H
 #include "../../../Includes.h"
 
 ProgramState::ProgramState() {
@@ -110,7 +105,21 @@ GLenum ProgramState::FinalizeProgramPipeline(GLuint program) {
     std::vector<std::vector<unsigned>> allSpirv = 
             MG_Util::Program::CompileMultipleShadersToSPIRV(*this, prog, prog.infoLog);
     
+    if (!prog.infoLog.empty() || allSpirv.empty()) {
+        prog.linked = UncertainBool::False;
+        prog.linkStatus = GL_FALSE;
+        prog.infoLog = "Program linking failed during SPIR-V compilation: " + prog.infoLog;
+        MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: %s", prog.infoLog.c_str());
+        return GL_INVALID_OPERATION;
+    }
+    
     MG_Util::Program::ReflectSPIRVUniforms(allSpirv, prog, prog.infoLog);
+    
+    for (size_t i = 0; i < prog.attachedShaders.size(); ++i) {
+        GLuint shaderId = prog.attachedShaders[i];
+        shaders_[shaderId].source = MG_Util::Program::CompileSPIRVToGLSL(allSpirv[i], 450, false, false);
+    }
+    
     if (!prog.infoLog.empty()) {
         prog.linked = UncertainBool::False;
         prog.linkStatus = GL_FALSE;
@@ -118,10 +127,8 @@ GLenum ProgramState::FinalizeProgramPipeline(GLuint program) {
         MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: %s", prog.infoLog.c_str());
         return GL_INVALID_OPERATION;
     }
-
+    
-    for (auto& [name, index] : prog.attribBindings) {
+    // TODO: Support explicitly assign attrib locations in the shaders.
-        prog.attribLocations[name] = index;
-    }
 
     prog.linked = {UncertainBool::Unknown, UncertainBool::True};
     prog.linkStatus = GL_TRUE;
@@ -147,28 +154,28 @@ GLenum ProgramState::ActivateRenderProgram(GLuint program) {
     return GL_NO_ERROR;
 }
 
-GLenum ProgramState::DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name) {
+GLenum ProgramState::DefineProgramAttributeLocation(GLuint program, GLuint index, const GLchar* name) {
-    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeBinding called, program=%u, index=%u, name=%s",
+    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeLocation called, program=%u, index=%u, name=%s",
                          program, index, name);
     if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeBinding error: invalid program id %u", program);
+        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeLocation error: invalid program id %u", program);
         return GL_INVALID_VALUE;
     }
     if (index >= GL_MAX_VERTEX_ATTRIBS) {
-        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeBinding error: index %u out of range", index);
+        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeLocation error: index %u out of range", index);
         return GL_INVALID_VALUE;
     }
 
-    programs_[program].attribBindings[name] = index;
+    programs_[program].attribLocations[name] = index;
-    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeBinding success: %s -> %u", name, index);
+    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeLocation success: %s -> %u", name, index);
     return GL_NO_ERROR;
 }
 
-GLint ProgramState::QueryProgramAttributeBinding(GLuint program, const GLchar* name) {
+GLint ProgramState::QueryProgramAttributeLocation(GLuint program, const GLchar* name) {
-    MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeBinding called, program=%u, name=%s",
+    MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeLocation called, program=%u, name=%s",
                          program, name);
     if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: QueryProgramAttributeBinding error: invalid program id %u", program);
+        MG_Util::Debug::LogE("MG_State: Program: QueryProgramAttributeLocation error: invalid program id %u", program);
         return -1;
     }
 
@@ -176,11 +183,27 @@ GLint ProgramState::QueryProgramAttributeBinding(GLuint program, const GLchar* n
     auto it = prog.attribLocations.find(name);
     if (it != prog.attribLocations.end()) {
         GLint loc = it->second;
-        MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeBinding success: %s -> %d", name, loc);
+        MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeLocation success: %s -> %d", name, loc);
         return loc;
+    } else {
+        MG_Util::Debug::LogW("MG_State: Program: QueryProgramAttributeLocation warning: name '%s' not found, generating new one...", name);
+        // Find the next available location
+        GLint loc = (GLint)prog.attribLocations.size();
+        bool locInUse;
+        do {
+            locInUse = false;
+            for (const auto& pair : prog.attribLocations) {
+                if (pair.second == loc) {
+                    locInUse = true;
+                    loc++;
+                    break;
+                }
+            }
+        } while (locInUse);
+        prog.attribLocations[name] = loc;
+        MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeLocation success: %s -> %d", name, loc);
+        return prog.attribLocations[name];
     }
-    MG_Util::Debug::LogW("MG_State: Program: QueryProgramAttributeBinding warning: name '%s' not found", name);
-    return -1;
 }
 
 GLenum ProgramState::QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params) {
@@ -408,26 +431,26 @@ GLuint ProgramState::GetCurrentProgram() const {
     return currentProgram_;
 }
 
-ShaderObject ProgramState::GetShaderObject(GLuint shader) const {
+const ShaderObject* ProgramState::GetShaderObject(GLuint shader) const {
     MG_Util::Debug::LogD("MG_State: Program: GetShaderObject called, shader=%u", shader);
     auto it = shaders_.find(shader);
     if (it == shaders_.end()) {
         MG_Util::Debug::LogW("MG_State: Program: GetShaderObject warning: invalid shader id %u", shader);
-        return ShaderObject();
+        return nullptr;
     }
     MG_Util::Debug::LogD("MG_State: Program: GetShaderObject success, returning object");
-    return it->second;
+    return &(it->second);
 }
 
-ProgramObject ProgramState::GetProgramObject(GLuint program) const {
+const ProgramObject* ProgramState::GetProgramObject(GLuint program) const {
     MG_Util::Debug::LogD("MG_State: Program: GetProgramObject called, program=%u", program);
     auto it = programs_.find(program);
     if (it == programs_.end()) {
         MG_Util::Debug::LogW("MG_State: Program: GetProgramObject warning: invalid program id %u", program);
-        return ProgramObject();
+        return nullptr;
     }
     MG_Util::Debug::LogD("MG_State: Program: GetProgramObject success, returning object");
-    return it->second;
+    return &(it->second);
 }
 
 bool ProgramState::ValidateProgram_(GLuint program) {
@@ -451,7 +474,7 @@ void ProgramState::CleanupShaders_() {
             }
             if (!inUse) {
                 MG_Util::Debug::LogD("MG_State: Program: CleanupShaders_ deleting shader %u", it->first);
-                freeShaderIds_.insert(it->first);
+                // freeShaderIds_.insert(it->first);
                 it = shaders_.erase(it);
                 continue;
             }

MG/MG_GL/State/Program/ProgramState.h

@@ -4,11 +4,6 @@
 
 #ifndef MOBILEGL_PROGRAMSTATE_H
 #define MOBILEGL_PROGRAMSTATE_H
-#define MOBILEGL_GLSTATE_H
-#define MOBILEGL_PROGRAM_DEBUGTOOL_H
-#define MOBILEGL_GLSLTOOL_H
-
-#include "../../../Includes.h"
 
 struct ShaderObject {
     GLenum type;
@@ -41,17 +36,16 @@ struct ProgramObject {
     bool dirty;
     GLint linkStatus;
     std::string infoLog;
-    ankerl::unordered_map<std::string, GLint> attribBindings;
+    MG_Global::unordered_map<std::string, GLint> attribLocations;
-    ankerl::unordered_map<std::string, GLint> attribLocations;
+    MG_Global::unordered_map<std::string, GLint> uniformLocations;
-    ankerl::unordered_map<std::string, GLint> uniformLocations;
+    MG_Global::unordered_map<std::string, UniformValue> uniformValues;
-    ankerl::unordered_map<std::string, UniformValue> uniformValues;
     bool markedForDeletion;
 };
 
 class ProgramState {
 public:
-    ankerl::unordered_map<GLuint, ShaderObject> shaders_;
+    MG_Global::unordered_map<GLuint, ShaderObject> shaders_;
-    ankerl::unordered_map<GLuint, ProgramObject> programs_;
+    MG_Global::unordered_map<GLuint, ProgramObject> programs_;
     std::set<GLuint> freeShaderIds_;
     std::set<GLuint> freeProgramIds_;
     GLuint lastShaderId_ = 0;
@@ -71,8 +65,8 @@ public:
     GLenum BuildShaderStage(GLuint shader);
     GLenum FinalizeProgramPipeline(GLuint program);
     GLenum ActivateRenderProgram(GLuint program);
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name);
+    GLenum DefineProgramAttributeLocation(GLuint program, GLuint index, const GLchar* name);
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name);
+    GLint QueryProgramAttributeLocation(GLuint program, const GLchar* name);
     GLint QueryProgramUniformLocation(GLuint program, const GLchar* name);
     GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params);
     GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params);
@@ -110,8 +104,8 @@ public:
     DECLARE_MATRIX_FUNCTIONS(4x3, GL_FLOAT_MAT4x3)
 #undef DECLARE_MATRIX_FUNCTIONS
     
-    ProgramObject GetProgramObject(GLuint program) const;
+    const ProgramObject* GetProgramObject(GLuint program) const;
-    ShaderObject GetShaderObject(GLuint program) const;
+    const ShaderObject* GetShaderObject(GLuint program) const;
     GLuint GetCurrentProgram() const;
     bool SetProgramStatus(GLuint program, GLboolean status);
     bool SetShaderStatus(GLuint shader, GLboolean status);

MG/MG_GL/State/Program/ShaderObject.cpp

@@ -2,11 +2,6 @@
 // Created by BZLZHH on 2025/5/3.
 //
 
-#include "ShaderObject.h"
-
-// Re-Include Includes.h, cuz of the absence of Program/DebugTool.h and Program/GLSLTool.cpp.
-#undef MOBILEGL_GLSLTOOL_H
-#undef MOBILEGL_PROGRAM_DEBUGTOOL_H
 #include "../../../Includes.h"
 
 GLenum ProgramState::CreateShader(GLenum type, GLuint* shader) {
@@ -42,10 +37,6 @@ GLenum ProgramState::DeleteShader(GLuint shader) {
         MG_Util::Debug::LogE("MG_State: Program: DeleteShader error: invalid shader id %u", shader);
         return GL_INVALID_VALUE;
     }
-    if (shaders_[shader].markedForDeletion) {
-        MG_Util::Debug::LogW("MG_State: Program: DeleteShader warning: shader %u already marked for deletion", shader);
-        return GL_NO_ERROR;
-    }
 
     bool inUse = false;
     for (auto& [progId, program] : programs_) {

MG/MG_GL/State/Program/ShaderObject.h

@@ -5,8 +5,4 @@
 #ifndef MOBILEGL_SHADEROBJECT_H
 #define MOBILEGL_SHADEROBJECT_H
 
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
 #endif //MOBILEGL_SHADEROBJECT_H

MG/MG_GL/State/Texture/TextureState.cpp

@@ -2,10 +2,6 @@
 // Created by BZLZHH on 2025/4/4.
 //
 
-#include "TextureState.h"
-
-// Re-Include Includes.h, cuz of the absence of GLState.h
-#undef MOBILEGL_GLSTATE_H
 #include "../../../Includes.h"
 
 // TextureObject
@@ -121,7 +117,7 @@ GLenum TextureState::CreateN(GLsizei n, GLuint* textures) {
 
 GLenum TextureState::Bind(GLenum target, GLuint texture) {
     MG_Util::Debug::LogD("MG_State: Texture: Bind called with target=0x%x, texture=%u", target, texture);
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: Bind invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
@@ -146,7 +142,6 @@ GLenum TextureState::Bind(GLenum target, GLuint texture) {
         }
     }
     
-
     TextureUnitState& unit = textureUnits_[activeTextureUnit_];
     TextureObject* texObj = nullptr;
     auto it = this->textures.find(texture);
@@ -498,12 +493,12 @@ GLenum TextureState::UpdateRegion2D(GLenum target, GLint level, GLint xoffset,
 
 GLenum TextureState::SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloat param) {
     MG_Util::Debug::LogD("MG_State: Texture: SetTexturePropertyFloat called target=0x%x, pname=0x%x, param=%f", target, pname, param);
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: SetTexturePropertyFloat invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
 
-    if (MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES.find(pname) == MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES.end()) {
+    if (!MG_Constants::Common::Contains(pname, MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES)) {
         MG_Util::Debug::LogE("MG_State: Texture: SetTexturePropertyFloat invalid pname=0x%x", pname);
         return GL_INVALID_ENUM;
     }
@@ -550,12 +545,12 @@ GLenum TextureState::SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloa
 
 GLenum TextureState::SetTexturePropertyInt(GLenum target, GLenum pname, GLint param) {
     MG_Util::Debug::LogD("MG_State: Texture: SetTexturePropertyInt called target=0x%x, pname=0x%x, param=%d", target, pname, param);
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: SetTexturePropertyInt invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
 
-    if (MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES.find(pname) == MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES.end()) {
+    if (!MG_Constants::Common::Contains(pname, MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES)) {
         MG_Util::Debug::LogE("MG_State: Texture: SetTexturePropertyInt invalid pname=0x%x", pname);
         return GL_INVALID_ENUM;
     }
@@ -646,7 +641,7 @@ GLenum TextureState::DeleteN(GLsizei n, const GLuint* textures) {
 
 GLenum TextureState::QueryLevelPropertyIntVector(GLenum target, GLint level, GLenum pname, GLint* params) {
     MG_Util::Debug::LogD("MG_State: Texture: QueryLevelPropertyIntVector called target=0x%x, level=%d, pname=0x%x", target, level, pname);
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: QueryLevelPropertyIntVector invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
@@ -656,7 +651,7 @@ GLenum TextureState::QueryLevelPropertyIntVector(GLenum target, GLint level, GLe
         return GL_INVALID_VALUE;
     }
 
-    if (MG_Constants::Texture::VALID_QUERY_LEVEL_PROPERTY_PARAM_NAMES.find(pname) == MG_Constants::Texture::VALID_QUERY_LEVEL_PROPERTY_PARAM_NAMES.end()) {
+    if (!MG_Constants::Common::Contains(pname, MG_Constants::Texture::VALID_TEXTURE_PARAM_NAMES)) {
         MG_Util::Debug::LogE("MG_State: Texture: QueryLevelPropertyIntVector invalid pname=0x%x", pname);
         return GL_INVALID_ENUM;
     }
@@ -700,7 +695,7 @@ GLenum TextureState::QueryLevelPropertyIntVector(GLenum target, GLint level, GLe
         return GL_NO_ERROR;
     }
 
-    unordered_map<GLuint, TextureObject>::iterator texIt;
+    MG_Global::unordered_map<GLuint, TextureObject>::iterator texIt;
     
     if (!isProxyTexture) {
         texIt = textures.find(boundTexture);
@@ -806,7 +801,7 @@ GLenum TextureState::CheckUploadingTexture2DValidity_(GLenum target, GLint level
                                                      GLsizei width, GLsizei height, GLint border, GLenum format,
                                                      GLenum type, const void* data) {
     MG_Util::Debug::LogD("MG_State: Texture: CheckUploadingTexture2DValidity_ called target=0x%x, level=%d", target, level);
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUploadingTexture2DValidity_ invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
@@ -846,17 +841,17 @@ GLenum TextureState::CheckUploadingTexture2DValidity_(GLenum target, GLint level
         return GL_INVALID_VALUE;
     }
 
-    if (MG_Constants::Texture::VALID_INTERNAL_FORMATS.find(internalFormat) == MG_Constants::Texture::VALID_INTERNAL_FORMATS.end()) {
+    if (!MG_Constants::Common::Contains((GLenum)internalFormat, MG_Constants::Texture::VALID_INTERNAL_FORMATS)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUploadingTexture2DValidity_ invalid internalFormat=0x%x", internalFormat);
         return GL_INVALID_VALUE;
     }
 
-    if (MG_Constants::Texture::VALID_FORMATS.find(format) == MG_Constants::Texture::VALID_FORMATS.end()) {
+    if (!MG_Constants::Common::Contains((GLenum)format, MG_Constants::Texture::VALID_FORMATS)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUploadingTexture2DValidity_ invalid format=0x%x", format);
         return GL_INVALID_ENUM;
     }
 
-    if (MG_Constants::Texture::VALID_TYPES.find(type) == MG_Constants::Texture::VALID_TYPES.end()) {
+    if (!MG_Constants::Common::Contains((GLenum)type, MG_Constants::Texture::VALID_TYPES)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUploadingTexture2DValidity_ invalid type=0x%x", type);
         return GL_INVALID_ENUM;
     }
@@ -928,7 +923,7 @@ GLenum TextureState::CheckUpdatingTextureRegion2DValidity_(GLenum target, GLint
     MG_Util::Debug::LogD("MG_State: Texture: CheckUpdatingTextureRegion2DValidity_ called target=0x%x, level=%d, x=%d, y=%d, w=%d, h=%d",
                          target, level, xoffset, yoffset, width, height);
 
-    if (MG_Constants::Texture::VALID_TARGETS.find(target) == MG_Constants::Texture::VALID_TARGETS.end()) {
+    if (!MG_Constants::Common::Contains(target, MG_Constants::Texture::VALID_TARGETS)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUpdatingTextureRegion2DValidity_ invalid target=0x%x", target);
         return GL_INVALID_ENUM;
     }
@@ -978,12 +973,12 @@ GLenum TextureState::CheckUpdatingTextureRegion2DValidity_(GLenum target, GLint
         return GL_INVALID_OPERATION;
     }
 
-    if (MG_Constants::Texture::VALID_FORMATS.find(format) == MG_Constants::Texture::VALID_FORMATS.end()) {
+    if (!MG_Constants::Common::Contains(format, MG_Constants::Texture::VALID_FORMATS)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUpdatingTextureRegion2DValidity_ invalid format=0x%x", format);
         return GL_INVALID_ENUM;
     }
 
-    if (MG_Constants::Texture::VALID_TYPES.find(type) == MG_Constants::Texture::VALID_TYPES.end()) {
+    if (!MG_Constants::Common::Contains(type, MG_Constants::Texture::VALID_TYPES)) {
         MG_Util::Debug::LogE("MG_State: Texture: CheckUpdatingTextureRegion2DValidity_ invalid type=0x%x", type);
         return GL_INVALID_ENUM;
     }

MG/MG_GL/State/Texture/TextureState.h

@@ -4,9 +4,6 @@
 
 #ifndef MOBILEGL_TEXTURESTATE_H
 #define MOBILEGL_TEXTURESTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
 
 struct ComponentSizes {
     GLint red = 0;  
@@ -19,10 +16,8 @@ struct ComponentSizes {
 };
 
 struct TextureParams {
-    template <typename K, typename V>
+    MG_Global::unordered_map<GLenum, GLfloat> texPropertiesFloat;
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
+    MG_Global::unordered_map<GLenum, GLint> texPropertiesInt;
-    unordered_map<GLenum, GLfloat> texPropertiesFloat;
-    unordered_map<GLenum, GLint> texPropertiesInt;
     struct MipmapLevel {
         GLsizei width = 0;
         GLsizei height = 0;
@@ -33,7 +28,7 @@ struct TextureParams {
         bool hasData = false;
         bool dirty = false; // TODO: encapsulate this with an public API to RHI
     };
-    unordered_map<GLint, MipmapLevel> mipmapData;
+    MG_Global::unordered_map<GLint, MipmapLevel> mipmapData;
 };
 
 class TextureObject {
@@ -47,35 +42,31 @@ public:
 };
 
 class TextureUnitState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-private:
-    GLenum activeTarget = GL_TEXTURE_2D;
-    
 public:
-    unordered_map<GLenum, GLuint> boundTextures;
     void Bind(GLenum target, GLuint texture);
     GLuint GetBoundTexture(GLenum target);
+    
+    GLenum activeTarget = GL_TEXTURE_2D;
+    MG_Global::unordered_map<GLenum, GLuint> boundTextures;
 };
 
 class TextureState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
 private:
 
     GLuint lastUsedID_ = 1;
-//    ankerl::unordered_set<GLuint> freeIDs_;
+//    MG_Global::unordered_set<GLuint> freeIDs_;
     std::vector<GLuint> freeID_;
 
-    unordered_map<GLenum, TextureObject> proxyTextures_;
+    MG_Global::unordered_map<GLenum, TextureObject> proxyTextures_;
-    
     static GLint GetUnpackParam_(GLenum pname);
+
 public:
     TextureState();
     
     bool IsTextureGenerated(GLuint texture);
     bool IsTexture(GLuint texture);
-    unordered_map<GLuint, TextureObject> textures;
+    MG_Global::unordered_map<GLuint, TextureObject> textures;
+
 
     // Return: the validity of the operation, according to OpenGL 3 standard
     GLenum BindUnit(GLenum textureUnit);

MG/MG_GL/State/VertexArray/VertexArrayState.cpp

@@ -4,7 +4,7 @@
 
 // TODO: Add more gl error check for vertex array state manager.
 
-#include "VertexArrayState.h"
+#include "../../../Includes.h"
 
 VertexArrayState::VertexArrayState() {
     vaos_[0];
@@ -107,7 +107,7 @@ bool VertexArrayState::ValidateAllocatedHandle(GLuint array) {
 GLenum VertexArrayState::EnableAttrib(GLuint index) {
     if (!ValidateAllocatedHandle(currentVao_))
         return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
+    if (index >= MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
     GetCurrentVAO()->attribs[index].enabled = true;
     MG_Util::Debug::LogD("Attrib vaos_[%u].attribs[%u].enabled = %d", currentVao_, index, vaos_[currentVao_].attribs[index].enabled);
 
@@ -118,7 +118,7 @@ GLenum VertexArrayState::EnableAttrib(GLuint index) {
 GLenum VertexArrayState::DisableAttrib(GLuint index) {
     if (!ValidateAllocatedHandle(currentVao_))
         return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
+    if (index >= MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
     GetCurrentVAO()->attribs[index].enabled = false;
     MG_Util::Debug::LogD("Attrib vaos_[%u].attribs[%u].enabled = %d", currentVao_, index, vaos_[currentVao_].attribs[index].enabled);
 
@@ -132,7 +132,7 @@ GLenum VertexArrayState::SetAttribPointer(GLuint index, GLint size, GLenum type,
                                           GLuint currentArrayBuffer) {
     if (!ValidateAllocatedHandle(currentVao_))
         return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
+    if (index >= MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
 
     VertexAttribState state;
     state.size = size;
@@ -142,8 +142,7 @@ GLenum VertexArrayState::SetAttribPointer(GLuint index, GLint size, GLenum type,
     state.pointer = pointer;
     state.buffer = currentArrayBuffer;
     state.isInteger = isInteger;
-    if (vaos_[currentVao_].attribs.count(index) && vaos_[currentVao_].attribs[index].enabled)
+    state.enabled = vaos_[currentVao_].attribs[index].enabled;
-        state.enabled = true;
 
     vaos_[currentVao_].attribs[index] = state;
 

MG/MG_GL/State/VertexArray/VertexArrayState.h

@@ -4,12 +4,9 @@
 
 #ifndef MOBILEGL_VERTEXARRAYSTATE_H
 #define MOBILEGL_VERTEXARRAYSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
 
 struct VertexAttribState {
-    bool enabled;
+    bool enabled = false;
     GLint size = 4;
     GLenum type = GL_FLOAT;
     GLboolean normalized = GL_FALSE;
@@ -24,7 +21,7 @@ struct VertexArrayObject {
     bool attribDirty = false;
     bool eboDirty = false;
     GLuint elementBuffer = 0;
-    ankerl::unordered_map<GLuint, VertexAttribState> attribs;
+    std::array<VertexAttribState, MG_Constants::VertexArray::MAX_VERTEX_ATTRIBS> attribs;
 };
 
 class VertexArrayState {
@@ -50,7 +47,7 @@ public:
     bool ValidateAllocatedHandle(GLuint array);
 
     GLuint currentVao_ = 0;
-    ankerl::unordered_map<GLuint, VertexArrayObject> vaos_;
+    MG_Global::unordered_map<GLuint, VertexArrayObject> vaos_;
 private:
     std::set<GLuint> freeIds_;
     GLuint lastId_ = 0;

MG/MG_Include/IndexGenerator.hpp

@@ -0,0 +1,73 @@
+//
+// Created by yello on 2025-06-27.
+//
+
+#ifndef INDEXGENERATOR_H
+#define INDEXGENERATOR_H
+
+#include <vector>
+#include <cstddef> // For size_t
+#include <algorithm> // For std::min
+#include <memory>
+
+template <typename IndexType>
+class IndexGenerator {
+public:
+    // 构造函数
+    IndexGenerator() : next_index_(1) {}
+    explicit IndexGenerator(IndexType n) : next_index_(1) {
+        is_valid_.reserve(n);
+    }
+
+    // 生成n个新正整数
+    void Generate(size_t n, IndexType *indices) {
+        if (n <= 0) {
+            return;
+        }
+
+        // 优先给出被删除的索引
+        size_t count_from_freed = std::min(n, freed_indices_.size());
+        for (size_t i = 0; i < count_from_freed; ++i) {
+            indices[i] = freed_indices_.back();
+            freed_indices_.pop_back();
+            // 标记为有效，确保is_valid_的大小足够
+            if (indices[i] >= is_valid_.size()) {
+                is_valid_.resize(static_cast<size_t>(indices[i]) + 1, false); // 0代表无效，1代表有效
+            }
+            is_valid_[indices[i]] = true; // 标记为有效
+        }
+
+        // 如果还需要更多的索引，则生成新的索引
+        for (size_t i = count_from_freed; i < n; ++i) {
+            indices[i] = next_index_++;
+            // 确保is_valid_的大小足够
+            if (indices[i] >= is_valid_.size()) {
+                is_valid_.resize(static_cast<size_t>(indices[i]) + 1, false);
+            }
+            is_valid_[indices[i]] = true; // 标记为有效
+        }
+    }
+
+    // 删除一个已经给出的正整数
+    void Delete(IndexType index) {
+        // 检查索引是否有效且未被删除
+        // 这里的检查是为了避免重复删除或删除未生成的索引
+        if (index < is_valid_.size() && is_valid_[index] == true) {
+            is_valid_[index] = false; // 标记为无效
+            freed_indices_.push_back(index); // 添加到已删除列表中
+        }
+    }
+
+    // 检查一个正整数是否之前已经被给出，并且没有被删除
+    bool IsValid(IndexType index) const {
+        // 如果索引超出is_valid_的范围，或者对应的位置是0，则认为无效
+        return index < is_valid_.size() && is_valid_[index] == true;
+    }
+
+private:
+    IndexType next_index_; // 下一个将要生成的正整数
+    std::vector<IndexType> freed_indices_; // 存储被删除的索引
+    std::vector<bool> is_valid_; // 标记索引是否有效。0代表无效，1代表有效。
+};
+
+#endif //INDEXGENERATOR_H

MG/MG_RHI/GLES/Test/TestDrawing.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/4/26.
 //
 
-#include "TestDrawing.h"
+#include "../../../Includes.h"
 
 namespace MG_RHI::GLES::Test {
     constexpr int DISPLAY_COLUMNS = 8;
@@ -14,6 +14,7 @@ namespace MG_RHI::GLES::Test {
     }
 
     bool CheckShaderCompileStatus(GLuint shader, const char* type) {
+#if BACKEND_TYPE == BACKEND_GLES
         GLint success;
         ::GLES::glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
         if (!success) {
@@ -22,10 +23,12 @@ namespace MG_RHI::GLES::Test {
             MG_Util::Debug::LogE("Shader compilation error (%s): %s", type, infoLog);
             return false;
         }
+#endif
         return true;
     }
 
     bool CheckProgramLinkStatus(GLuint program) {
+#if BACKEND_TYPE == BACKEND_GLES
         GLint success;
         ::GLES::glGetProgramiv(program, GL_LINK_STATUS, &success);
         if (!success) {
@@ -34,11 +37,13 @@ namespace MG_RHI::GLES::Test {
             MG_Util::Debug::LogE("Program link error: %s", infoLog);
             return false;
         }
+#endif
         return true;
     }
 
     // TODO: Use the textures state from MG_RHI(another state?) rather than directly from MG_State
     void DrawAllTextures() {
+#if BACKEND_TYPE == BACKEND_GLES
         ::GLES::glClearColor(1,1,1,1);
         ::GLES::glClear(GL_COLOR_BUFFER_BIT);
         
@@ -48,8 +53,8 @@ namespace MG_RHI::GLES::Test {
             GLuint quadVBO = 0;
             GLint uTexLoc = -1;
             GLint uMVPLoc = -1;
-            ankerl::unordered_map<GLuint, GLuint> textureCache;
+            MG_Global::unordered_map<GLuint, GLuint> textureCache;
-            ankerl::unordered_map<GLuint, bool> textureDirty;
+            MG_Global::unordered_map<GLuint, bool> textureDirty;
         };
 
         static ScreenResources sRes;
@@ -230,5 +235,6 @@ namespace MG_RHI::GLES::Test {
         ::GLES::glUseProgram(origProgram);
         ::GLES::glViewport(origViewport[0], origViewport[1],
                            origViewport[2], origViewport[3]);
+#endif
     }
 }

MG/MG_RHI/GLES/Test/TestDrawing.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_TESTDRAWING_H
 #define MOBILEGL_TESTDRAWING_H
 
-#include "../../../Includes.h"
-
 namespace MG_RHI::GLES::Test {
     void DrawAllTextures();
 }

MG/MG_UTIL/Debug/Debug.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_DEBUG_H
 #define MOBILEGL_DEBUG_H
 
-#include "../../Includes.h"
-
 #define FORCE_SYNC_WITH_LOG_FILE 0
 
 namespace MG_Util {
@@ -23,6 +21,7 @@ namespace MG_Util {
         void LogWrite(const char* format, va_list args);
         
         const char* GLEnumToString(::GLenum value);
+        const char* DiligentBlendFactorToString(Diligent::BLEND_FACTOR value);
     }
 }
 

MG/MG_UTIL/Program/DebugTool.cpp

@@ -2,7 +2,7 @@
 // Created by BZLZHH on 2025/5/3.
 //
 
-#include "DebugTool.h"
+#include "../../Includes.h"
 
 namespace MG_Util::Program {
     std::string GLTypeToString(GLenum type) {
@@ -54,7 +54,7 @@ namespace MG_Util::Program {
         std::ostringstream ss;
         ss << "[";
 
-        const size_t elemCount = std::min<size_t>(value.count, 16);
+        const size_t elemCount = std::min<size_t>(value.numElements, 16);
 
         switch(value.type) {
             case GL_FLOAT:
@@ -116,17 +116,17 @@ namespace MG_Util::Program {
     }
     
     void DumpUniforms(const ProgramState& state, GLuint program) {
-        if (MG_Global::Common::LogLevel > MG_Constants::Common::LOG_LEVEL_DEBUG)
+        if constexpr (MG_Global::Common::LogLevel > MG_Constants::Common::LOG_LEVEL_DEBUG)
             return;
         
-        auto prog = (ProgramObject)state.GetProgramObject(program);
+        auto* prog = state.GetProgramObject(program);
-        if (!prog.linked.toBool()) {
+        if (!prog->linked.toBool()) {
             MG_Util::Debug::LogE("Program %u not linked", program);
             return;
         }
         MG_Util::Debug::LogD("=== Dumping uniforms for program %u ===", program);
-        for(const auto& [name, loc] : prog.uniformLocations) {
+        for(const auto& [name, loc] : prog->uniformLocations) {
-            const auto& value = prog.uniformValues.at(name);
+            const auto& value = prog->uniformValues.at(name);
             MG_Util::Debug::LogD("Uniform: %-24s Location: %-4d Type: %-16s Count: %-3d Value: %s",
                                  name.c_str(),
                                  loc,
@@ -142,7 +142,6 @@ namespace MG_Util::Program {
         
         GLuint current = state.GetCurrentProgram();
         if (current == 0) {
-            MG_Util::Debug::LogE("No active program");
             return;
         }
         DumpUniforms(state, current);

MG/MG_UTIL/Program/DebugTool.h

@@ -4,7 +4,6 @@
 
 #ifndef MOBILEGL_PROGRAM_DEBUGTOOL_H
 #define MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "../../Includes.h"
 
 namespace MG_Util::Program {
     std::string GLTypeToString(GLenum type);

MG/MG_UTIL/Program/GLSLTool.cpp

@@ -2,10 +2,666 @@
 // Created by BZLZHH on 2025/5/3.
 //
 
-#include "GLSLTool.h"
+#include "../../Includes.h"
 
 namespace MG_Util::Program {
-    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source, glslang::TShader *&shader) {
+    void RenameGLSLBuiltinsForVulkan(std::string &src) {
+//        static const std::vector<std::pair<std::regex, std::string>> rules = {
+//                { std::regex(R"(gl_VertexID)"),   "gl_VertexIndex"    },
+//                { std::regex(R"(gl_InstanceID)"), "gl_InstanceIndex"  }
+//        };
+//
+//        for (auto &rule : rules) {
+//            src = std::regex_replace(src, rule.first, rule.second);
+//        }
+        size_t pos = src.find("gl_VertexID");
+        if (pos != std::string::npos) {
+            src.replace(pos, strlen("gl_VertexID"), "gl_VertexIndex");
+        }
+
+        pos = src.find("gl_InstanceID");
+        if (pos != std::string::npos) {
+            src.replace(pos, strlen("gl_InstanceID"), "gl_InstanceIndex");
+        }
+    }
+    
+    std::string BindInputLayoutLocationsForGLSL(
+        std::vector<uint32_t>& spirv,
+        MG_Global::unordered_map<std::string, GLint>& name_location_map)
+    {
+        spvc_context context = nullptr;
+        spvc_parsed_ir ir = nullptr;
+        spvc_compiler compiler = nullptr;
+        spvc_resources resources = nullptr;
+        spvc_result result = SPVC_SUCCESS;
+        const char* glsl_source = nullptr;
+        std::string output_glsl;
+
+        if ((result = spvc_context_create(&context)) != SPVC_SUCCESS)
+        {
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to create context.");
+            return {};
+        }
+
+        if ((result = spvc_context_parse_spirv(context,
+            spirv.data(),
+            spirv.size(),
+            &ir)) != SPVC_SUCCESS)
+        {
+            spvc_context_destroy(context);
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to parse SPIR-V.");
+            return {};
+        }
+
+        if ((result = spvc_context_create_compiler(
+            context,
+            SPVC_BACKEND_GLSL,
+            ir,
+            SPVC_CAPTURE_MODE_TAKE_OWNERSHIP,
+            &compiler)) != SPVC_SUCCESS)
+        {
+            spvc_context_destroy(context);
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to create compiler.");
+            return {};
+        }
+
+        if ((result = spvc_compiler_create_shader_resources(compiler, &resources)) != SPVC_SUCCESS)
+        {
+            spvc_context_destroy(context);
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to create shader resources.");
+            return {};
+        }
+
+        const spvc_reflected_resource* inputs = nullptr;
+        size_t num_inputs = 0;
+        if ((result = spvc_resources_get_resource_list_for_type(
+            resources,
+            SPVC_RESOURCE_TYPE_STAGE_INPUT,
+            &inputs,
+            &num_inputs)) != SPVC_SUCCESS)
+        {
+            spvc_context_destroy(context);
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to get stage inputs.");
+            return {};
+        }
+
+        std::unordered_map<std::string, spvc_variable_id> name_to_id;
+        for (size_t i = 0; i < num_inputs; ++i)
+        {
+            name_to_id[inputs[i].name] = inputs[i].id;
+        }
+
+        std::unordered_set<GLint> used_locations;
+
+        for (auto& kv : name_location_map)
+        {
+            const auto& name = kv.first;
+            GLint loc = kv.second;
+            auto it = name_to_id.find(name);
+            if (it == name_to_id.end())
+            {
+                MG_Util::Debug::LogW("[SPIRV-Cross] Input name not found: %s", name.c_str());
+                continue;
+            }
+
+            spvc_compiler_set_decoration(
+                compiler,
+                it->second,
+                SpvDecorationLocation,
+                loc);
+
+            used_locations.insert(loc);
+        }
+
+        GLint next_free_loc = 0;
+        for (size_t i = 0; i < num_inputs; ++i)
+        {
+            auto& res = inputs[i];
+            const auto& name = res.name;
+            auto var_id = res.id;
+
+            if (name_location_map.find(name) != name_location_map.end())
+                continue;
+
+            uint32_t curr_loc = 0;
+            bool has_loc = false;
+            curr_loc = spvc_compiler_get_decoration(compiler, var_id, SpvDecorationLocation);
+            if (spvc_compiler_has_decoration(compiler, var_id, SpvDecorationLocation))
+                has_loc = true;
+
+            if (has_loc && !used_locations.contains(curr_loc))
+            {
+                used_locations.insert((GLint)curr_loc);
+                continue;
+            }
+
+            while (used_locations.count(next_free_loc))
+                ++next_free_loc;
+
+            spvc_compiler_set_decoration(
+                compiler,
+                var_id,
+                SpvDecorationLocation,
+                next_free_loc);
+
+            MG_Util::Debug::LogI("[SPIRV-Cross] Auto assigned '%s' to location %d", name, next_free_loc);
+            used_locations.insert(next_free_loc);
+        }
+
+        spvc_compiler_options options = nullptr;
+        spvc_compiler_create_compiler_options(compiler, &options);
+        spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, 450);
+        spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_FALSE);
+        spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_FLIP_VERTEX_Y, SPVC_TRUE);
+        spvc_compiler_install_compiler_options(compiler, options);
+
+        if ((result = spvc_compiler_compile(compiler, &glsl_source)) != SPVC_SUCCESS)
+        {
+            MG_Util::Debug::LogE("[SPIRV-Cross] Failed to compile: %s",
+                spvc_context_get_last_error_string(context));
+            spvc_context_destroy(context);
+            return {};
+        }
+
+        output_glsl = glsl_source;
+        spvc_context_destroy(context);
+        MG_Util::Debug::LogI("[SPIRV-Cross] GLSL output:\n%s", output_glsl.c_str());
+
+        size_t pos = output_glsl.find("\n    gl_Position.y = -gl_Position.y;\n}");
+        if (pos != std::string::npos)
+        {
+            output_glsl.replace(
+                pos,
+                strlen("\n    gl_Position.y = -gl_Position.y;\n}"),
+                "\n    gl_Position.y = -gl_Position.y;\n    gl_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n}");
+        }
+
+        return output_glsl;
+    }
+
+    
+    static std::vector<bool> buildCommentMask(const std::string &src) {
+        enum State {
+            NORMAL,
+            LINE_COMMENT,
+            BLOCK_COMMENT,
+            STRING_LITERAL,
+            CHAR_LITERAL
+        };
+
+        std::vector<bool> isComment(src.size(), false);
+        State state = NORMAL;
+
+        for (size_t i = 0; i < src.size(); ++i) {
+            switch (state) {
+                case NORMAL:
+                    if (i + 1 < src.size() && src[i] == '/' && src[i + 1] == '/') {
+                        state = LINE_COMMENT;
+                        isComment[i] = true;
+                        isComment[i + 1] = true;
+                        ++i;
+                    }
+                    else if (i + 1 < src.size() && src[i] == '/' && src[i + 1] == '*') {
+                        state = BLOCK_COMMENT;
+                        isComment[i] = true;
+                        isComment[i + 1] = true;
+                        ++i;
+                    }
+                    else if (src[i] == '"') {
+                        state = STRING_LITERAL;
+                    }
+                    else if (src[i] == '\'') {
+                        state = CHAR_LITERAL;
+                    }
+                    break;
+
+                case LINE_COMMENT:
+                    isComment[i] = true;
+                    if (src[i] == '\n') {
+                        state = NORMAL;
+                    }
+                    break;
+
+                case BLOCK_COMMENT:
+                    isComment[i] = true;
+                    if (i + 1 < src.size() && src[i] == '*' && src[i + 1] == '/') {
+                        isComment[i + 1] = true;
+                        state = NORMAL;
+                        ++i;
+                    }
+                    break;
+
+                case STRING_LITERAL:
+                    if (src[i] == '\\' && (i + 1 < src.size())) {
+                        i++;
+                    }
+                    else if (src[i] == '"') {
+                        state = NORMAL;
+                    }
+                    break;
+
+                case CHAR_LITERAL:
+                    if (src[i] == '\\' && (i + 1 < src.size())) {
+                        i++;
+                    }
+                    else if (src[i] == '\'') {
+                        state = NORMAL;
+                    }
+                    break;
+            }
+        }
+
+        return isComment;
+    }
+
+    static bool isPreprocessorLine(const std::string &src, size_t pos) {
+        size_t lineStart = src.rfind('\n', pos);
+        if (lineStart == std::string::npos) {
+            lineStart = 0;
+        } else {
+            lineStart += 1;
+        }
+        size_t firstNonSpace = src.find_first_not_of(" \t\r\n", lineStart);
+        if (firstNonSpace != std::string::npos && src[firstNonSpace] == '#') {
+            return true;
+        }
+        return false;
+    }
+
+    static inline bool isInComment(const std::vector<bool> &mask, size_t pos) {
+        if (pos >= mask.size()) return false;
+        return mask[pos];
+    }
+
+    static inline void leftTrim(std::string &s) {
+        s.erase(s.begin(), std::find_if(s.begin(), s.end(), [](unsigned char ch) {
+            return !std::isspace(ch);
+        }));
+    }
+    static inline void rightTrim(std::string &s) {
+        s.erase(std::find_if(s.rbegin(), s.rend(), [](unsigned char ch) {
+            return !std::isspace(ch);
+        }).base(), s.end());
+    }
+    static inline void trim(std::string &s) {
+        leftTrim(s);
+        rightTrim(s);
+    }
+    static size_t findNextNonSpace(const std::string& str, size_t pos) {
+        return str.find_first_not_of(" \t\r\n", pos);
+    }
+
+    static std::string extractVarNameFromUniformDecl(const std::string& decl) {
+        const std::regex layoutRegex(R"(\s*layout\s*\([^)]*\))");
+        std::string declNoLayout = std::regex_replace(decl, layoutRegex, "");
+
+        size_t uniformPos = declNoLayout.find("uniform");
+        if (uniformPos != std::string::npos) {
+            declNoLayout = declNoLayout.substr(uniformPos + 7);
+        }
+        trim(declNoLayout);
+
+        size_t semiPos = declNoLayout.rfind(';');
+        if (semiPos != std::string::npos) {
+            declNoLayout = declNoLayout.substr(0, semiPos);
+        }
+        trim(declNoLayout);
+
+        size_t lastSpace = declNoLayout.find_last_of(" \t\r\n");
+        if (lastSpace == std::string::npos) {
+            return declNoLayout;
+        }
+
+        std::string candidate = declNoLayout.substr(lastSpace + 1);
+        size_t bracketPos = candidate.find('[');
+        if (bracketPos != std::string::npos) {
+            candidate = candidate.substr(0, bracketPos);
+        }
+
+        return candidate;
+    }
+
+    std::pair<std::string, std::string> GenerateDefaultUBOForGLSL(const std::pair<std::string,
+                                                                  std::string>& glslSources) {
+        std::string source1 = glslSources.first;
+        std::string source2 = glslSources.second;
+
+        std::vector<bool> commentMask1 = buildCommentMask(source1);
+        std::vector<bool> commentMask2 = buildCommentMask(source2);
+
+        const std::regex layoutRegex(R"(\s*layout\s*\([^)]*\))");
+        std::set<std::string> allUniformNames;
+        std::vector<std::string> mergedUniforms;
+        std::vector<std::pair<size_t, size_t>> removalSpans1;
+        std::vector<std::pair<size_t, size_t>> removalSpans2;
+
+        auto processSource = [&](std::string& source, const std::vector<bool>& commentMask,
+                                 std::vector<std::pair<size_t, size_t>>& removalSpans,
+                                 bool isFirstSource)
+        {
+            size_t searchPos = 0;
+            while ((searchPos = source.find("uniform", searchPos)) != std::string::npos) {
+                if (isInComment(commentMask, searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                if (isPreprocessorLine(source, searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                if (searchPos > 0 && (std::isalnum(source[searchPos - 1]) || source[searchPos - 1] == '_')) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t nextCharPos = findNextNonSpace(source, searchPos + 7);
+                if (nextCharPos == std::string::npos) break;
+
+                if (source[nextCharPos] == '{') {
+                    searchPos = nextCharPos + 1;
+                    continue;
+                }
+
+                size_t bracePos = source.find('{', nextCharPos);
+                size_t semicolonPos = source.find(';', nextCharPos);
+                if (bracePos != std::string::npos && (semicolonPos == std::string::npos || bracePos < semicolonPos)) {
+                    searchPos = bracePos + 1;
+                    continue;
+                }
+
+                if (semicolonPos == std::string::npos) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t declStart = searchPos;
+                size_t declLength = semicolonPos - searchPos + 1;
+                std::string declaration = source.substr(declStart, declLength);
+
+                std::string declNoLayout = std::regex_replace(declaration, layoutRegex, "");
+                std::string afterUniform = declNoLayout.substr(declNoLayout.find("uniform") + 7);
+                trim(afterUniform);
+                size_t sep = afterUniform.find_first_of(" \t\r\n[");
+                std::string typeToken = (sep == std::string::npos ? afterUniform : afterUniform.substr(0, sep));
+                bool isSamplerOrImage = false;
+                if (typeToken.rfind("sampler", 0) == 0 ||
+                    typeToken.rfind("isampler", 0) == 0 ||
+                    typeToken.rfind("usampler", 0) == 0 ||
+                    typeToken.rfind("image", 0) == 0)
+                {
+                    isSamplerOrImage = true;
+                }
+                if (isSamplerOrImage) {
+                    searchPos = declStart + declLength;
+                    continue;
+                }
+
+                std::string varName = extractVarNameFromUniformDecl(declaration);
+
+                if (isFirstSource) {
+                    mergedUniforms.push_back(declaration);
+                    allUniformNames.insert(varName);
+                } else {
+                    if (allUniformNames.find(varName) == allUniformNames.end()) {
+                        mergedUniforms.push_back(declaration);
+                        allUniformNames.insert(varName);
+                    }
+                }
+
+                size_t removeStart = declStart;
+                {
+                    size_t scanBack = declStart;
+                    while (scanBack > 0 && std::isspace((unsigned char)source[scanBack - 1])) {
+                        scanBack--;
+                    }
+                    if (scanBack >= 6) {
+                        size_t maybeLayout = source.rfind("layout", scanBack - 6);
+                        if (maybeLayout != std::string::npos) {
+                            size_t parenOpen = source.find('(', maybeLayout + 6);
+                            if (parenOpen != std::string::npos && parenOpen < scanBack) {
+                                size_t parenClose = source.find(')', parenOpen);
+                                if (parenClose != std::string::npos && parenClose < declStart) {
+                                    std::string between = source.substr(maybeLayout, declStart - maybeLayout);
+                                    const std::regex onlyLayout(R"(layout\s*\([^)]*\)\s*)");
+                                    if (std::regex_match(between, onlyLayout)) {
+                                        removeStart = maybeLayout;
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+                removalSpans.emplace_back(removeStart, (declStart + declLength) - removeStart);
+
+                searchPos = declStart + declLength;
+            }
+        };
+
+        processSource(source1, commentMask1, removalSpans1, true);
+        processSource(source2, commentMask2, removalSpans2, false);
+
+        if (mergedUniforms.empty()) {
+            return glslSources;
+        }
+
+        std::sort(removalSpans1.rbegin(), removalSpans1.rend());
+        for (auto &span : removalSpans1) {
+            source1.erase(span.first, span.second);
+        }
+        source1 = std::regex_replace(source1, std::regex(R"((\r\n|\n|\r){2,})"), "$1");
+
+        std::sort(removalSpans2.rbegin(), removalSpans2.rend());
+        for (auto &span : removalSpans2) {
+            source2.erase(span.first, span.second);
+        }
+        source2 = std::regex_replace(source2, std::regex(R"((\r\n|\n|\r){2,})"), "$1");
+
+        std::string uboBlock = "\nlayout(std140) uniform MG_DEFAULT_UBO\n{\n";
+        for (auto &decl : mergedUniforms) {
+            std::string cleaned = std::regex_replace(decl, layoutRegex, "");
+            std::string memberDecl = cleaned.substr(cleaned.find("uniform") + 7);
+            size_t semiPos = memberDecl.rfind(';');
+            if (semiPos != std::string::npos) {
+                memberDecl.erase(semiPos);
+            }
+            trim(memberDecl);
+            uboBlock += "    " + memberDecl + ";\n";
+        }
+        uboBlock += "};\n";
+
+        auto insertUBO = [&](std::string& source) {
+            size_t insertPos = 0, lastDirectivePos = 0;
+            size_t searchPos = 0;
+            while ((searchPos = source.find('#', searchPos)) != std::string::npos) {
+                if (isInComment(commentMask1, searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t eol = source.find('\n', searchPos);
+                if (eol == std::string::npos) break;
+                std::string line = source.substr(searchPos, eol - searchPos);
+                if (line.find("#version") != std::string::npos || line.find("#extension") != std::string::npos) {
+                    lastDirectivePos = eol + 1;
+                }
+                searchPos = eol + 1;
+            }
+            insertPos = lastDirectivePos;
+            source.insert(insertPos, uboBlock);
+        };
+
+        insertUBO(source1);
+        insertUBO(source2);
+
+        return {source1, source2};
+    }
+
+    void GenerateDefaultUBOForGLSL_Multi(
+            MG_Global::unordered_map<GLuint, std::string> &shaderSources, std::vector<std::string>& outUniformBufferNames) {
+        if (shaderSources.empty()) return;
+
+        outUniformBufferNames.clear();
+
+        std::unordered_map<GLuint, std::vector<bool>> commentMasks;
+        for (auto const& [id, source] : shaderSources) {
+            commentMasks[id] = buildCommentMask(source);
+        }
+
+        const std::regex layoutRegex(R"(\s*layout\s*\([^)]*\))");
+        std::set<std::string> allUniformNames;
+        std::vector<std::string> mergedUniforms;
+        std::unordered_map<GLuint, std::vector<std::pair<size_t, size_t>>> removalSpansPerShader;
+
+        for (auto& [id, source] : shaderSources) {
+            std::vector<bool>& commentMask = commentMasks[id];
+            // Ensure an entry exists for this shader ID, even if no uniforms are found
+            auto& removalSpans = removalSpansPerShader[id];
+
+            size_t searchPos = 0;
+            while ((searchPos = source.find("uniform", searchPos)) != std::string::npos) {
+                if (isInComment(commentMask, searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                if (isPreprocessorLine(source, searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                if (searchPos > 0 && (std::isalnum(source[searchPos - 1]) ||
+                                      source[searchPos - 1] == '_')) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t nextCharPos = findNextNonSpace(source, searchPos + 7);
+                if (nextCharPos == std::string::npos) break;
+
+                if (source[nextCharPos] == '{') {
+                    searchPos = nextCharPos + 1;
+                    continue;
+                }
+
+                size_t bracePos = source.find('{', nextCharPos);
+                size_t semicolonPos = source.find(';', nextCharPos);
+                if (bracePos != std::string::npos &&
+                    (semicolonPos == std::string::npos || bracePos < semicolonPos)) {
+                    searchPos = bracePos + 1;
+                    continue;
+                }
+
+                if (semicolonPos == std::string::npos) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t declStart = searchPos;
+                size_t declLength = semicolonPos - searchPos + 1;
+                std::string declaration = source.substr(declStart, declLength);
+
+                std::string declNoLayout = std::regex_replace(declaration, layoutRegex, "");
+                std::string afterUniform = declNoLayout.substr(declNoLayout.find("uniform") + 7);
+                trim(afterUniform);
+                size_t sep = afterUniform.find_first_of(" \t\r\n[");
+                std::string typeToken = (sep == std::string::npos ? afterUniform : afterUniform.substr(0, sep));
+                bool isSamplerOrImage =
+                        typeToken.rfind("sampler", 0) == 0 ||
+                        typeToken.rfind("isampler", 0) == 0 ||
+                        typeToken.rfind("usampler", 0) == 0 ||
+                        typeToken.rfind("image", 0) == 0;
+
+                if (isSamplerOrImage) {
+                    searchPos = declStart + declLength;
+                    continue;
+                }
+
+                std::string varName = extractVarNameFromUniformDecl(declaration);
+                if (allUniformNames.find(varName) == allUniformNames.end()) {
+                    mergedUniforms.push_back(declaration);
+                    allUniformNames.insert(varName);
+                    // save the uniform names in order
+                    outUniformBufferNames.emplace_back(varName);
+                }
+
+                size_t removeStart = declStart;
+                size_t scanBack = declStart;
+                while (scanBack > 0 && std::isspace(static_cast<unsigned char>(source[scanBack - 1]))) {
+                    scanBack--;
+                }
+                if (scanBack >= 6) {
+                    size_t maybeLayout = source.rfind("layout", scanBack - 6);
+                    if (maybeLayout != std::string::npos) {
+                        size_t parenOpen = source.find('(', maybeLayout + 6);
+                        if (parenOpen != std::string::npos && parenOpen < scanBack) {
+                            size_t parenClose = source.find(')', parenOpen);
+                            if (parenClose != std::string::npos && parenClose < declStart) {
+                                std::string between = source.substr(maybeLayout, declStart - maybeLayout);
+                                const std::regex onlyLayout(R"(layout\s*\([^)]*\)\s*)");
+                                if (std::regex_match(between, onlyLayout)) {
+                                    removeStart = maybeLayout;
+                                }
+                            }
+                        }
+                    }
+                }
+                removalSpans.emplace_back(removeStart, (declStart + declLength) - removeStart);
+                searchPos = declStart + declLength;
+            }
+        }
+
+        if (mergedUniforms.empty()) return;
+
+        for (auto& [id, source] : shaderSources) {
+            auto& removalSpans = removalSpansPerShader[id];
+            std::sort(removalSpans.rbegin(), removalSpans.rend());
+            for (auto& span : removalSpans) {
+                source.erase(span.first, span.second);
+            }
+        }
+
+        std::string uboBlock = "\nlayout(std140) uniform MG_DEFAULT_UBO\n{\n";
+        for (auto& decl : mergedUniforms) {
+            std::string cleaned = std::regex_replace(decl, layoutRegex, "");
+            std::string memberDecl = cleaned.substr(cleaned.find("uniform") + 7);
+            size_t semiPos = memberDecl.rfind(';');
+            if (semiPos != std::string::npos) {
+                memberDecl.erase(semiPos);
+            }
+            trim(memberDecl);
+            uboBlock += "    " + memberDecl + ";\n";
+        }
+        uboBlock += "};\n";
+
+        MG_Util::Debug::LogD("UBO Generated:\n%s", uboBlock.c_str());
+
+        for (auto& [id, source] : shaderSources) {
+            size_t insertPos = 0, lastDirectivePos = 0;
+            size_t searchPos = 0;
+            while ((searchPos = source.find('#', searchPos)) != std::string::npos) {
+                if (isInComment(commentMasks[id], searchPos)) {
+                    searchPos++;
+                    continue;
+                }
+
+                size_t eol = source.find('\n', searchPos);
+                if (eol == std::string::npos) break;
+                std::string line = source.substr(searchPos, eol - searchPos);
+                if (line.find("#version") != std::string::npos ||
+                    line.find("#extension") != std::string::npos) {
+                    lastDirectivePos = eol + 1;
+                }
+                searchPos = eol + 1;
+            }
+            insertPos = lastDirectivePos;
+            source.insert(insertPos, uboBlock);
+        }
+    }
+    
+    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source, 
+                                     glslang::TShader *&shader, bool isVkGLSL) {
         std::string infoLog;
         using namespace glslang;
         
@@ -21,8 +677,12 @@ namespace MG_Util::Program {
         shader = new TShader(language);
         const char *src = source.c_str();
         shader->setStrings(&src, 1);
+        if (isVkGLSL) {
+            shader->setPreamble("#define gl_VertexID gl_VertexIndex\n"
+                                "#define gl_InstanceID gl_InstanceIndex\n");
+        }
         shader->setEnvInput(EShSourceGlsl, language, EShClientVulkan, glslVersion);
-        shader->setEnvClient(EShClientOpenGL, EShTargetOpenGL_450);
+        shader->setEnvClient(EShClientOpenGL, isVkGLSL ? EShTargetVulkan_1_3 : EShTargetOpenGL_450);
         shader->setEnvTarget(EShTargetSpv, EShTargetSpv_1_6);
         shader->setAutoMapLocations(true);
         shader->setAutoMapBindings(true);
@@ -30,7 +690,7 @@ namespace MG_Util::Program {
         // Is InitResources() really correct?
         TBuiltInResource resources = InitResources();
 
-        if (!shader->parse(&resources, glslVersion, true, EShMsgDefault)) {
+        if (!shader->parse(&resources, glslVersion, true, isVkGLSL ? EShMsgVulkanRules : EShMsgDefault)) {
             infoLog += "Error: [glslang] Cannot compile the " + GetShaderTypeName(shaderType) + ":\n"
                       + std::to_string(shader->getInfoLog());
             return infoLog;
@@ -45,12 +705,12 @@ namespace MG_Util::Program {
         std::vector<EShLanguage> usedShaderTypes;
         TProgram program;
         for (GLuint shaderId : prog.attachedShaders) {
-            auto shaderObject = state.GetShaderObject(shaderId);
+            auto* shaderObject = state.GetShaderObject(shaderId);
-            EShLanguage shLanguage = GetEShLanguageByShaderType(shaderObject.type);
+            EShLanguage shLanguage = GetEShLanguageByShaderType(shaderObject->type);
             TShader* shader = nullptr;
-            std::string infoLogOfShader = CompileGLSLToTShader(shaderObject.type, shaderObject.source, shader);
+            std::string infoLogOfShader = CompileGLSLToTShader(shaderObject->type, shaderObject->source, shader);
             if (!infoLogOfShader.empty()) {
-                infoLog = "Error: [glslang] Cannot compile " + GetShaderTypeName(shaderObject.type) +
+                infoLog = "Error: [glslang] Cannot compile " + GetShaderTypeName(shaderObject->type) +
                         " :\n" + infoLogOfShader;
                 return {};
             }
@@ -62,6 +722,21 @@ namespace MG_Util::Program {
             return {};
         }
 
+        std::unique_ptr<glslang::TIoMapResolver> resolver;
+        for (unsigned stage = 0; stage < EShLangCount; stage++) {
+            auto* pResolver = program.getGlslIoResolver((EShLanguage)stage);
+            if (pResolver) {
+                resolver = std::unique_ptr<glslang::TIoMapResolver>(pResolver);
+                break;
+            }
+        }
+        auto ioMapper = std::unique_ptr<glslang::TIoMapper>(glslang::GetGlslIoMapper());
+
+        if (!program.mapIO(resolver.get(), ioMapper.get())) {
+            infoLog = "Error: [glslang] Cannot mapIO:\n" + std::to_string(program.getInfoLog());
+            return {};
+        }
+
         SpvOptions spvOptions;
         spvOptions.disableOptimizer = false;
 
@@ -75,21 +750,40 @@ namespace MG_Util::Program {
         return allSpirv;
     }
     
-    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string &source, std::string &infoLog) {
+    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string &source, 
+                                             std::string &infoLog, bool isVkGLSL, GLenum additionalShaderType,
+                                             const std::string& additionalShaderSource
+                                             ) {
         using namespace glslang;
 
         TShader* shader = nullptr;
-        std::string infoLogOfShader = CompileGLSLToTShader(shaderType, source, shader);
+        std::string infoLogOfShader = CompileGLSLToTShader(shaderType, source, shader, isVkGLSL);
         if (!infoLogOfShader.empty()) {
             infoLog = "Error: [glslang] Cannot compile " + GetShaderTypeName(shaderType) + ":\n" + infoLogOfShader;
             return {};
         }
         TProgram program;
-        program.addShader(shader);
+        
-        if (!program.link(EShMsgDefault)) {
+        if (additionalShaderType == GL_VERTEX_SHADER)
+            program.addShader(shader);
+        if (additionalShaderType && !additionalShaderSource.empty()) {
+            TShader* additionalShader = nullptr;
+            std::string additionalInfoLog = CompileGLSLToTShader(additionalShaderType, additionalShaderSource, additionalShader, isVkGLSL);
+            if (!additionalInfoLog.empty()) {
+                infoLog = "Error: [glslang] Cannot compile additional " + GetShaderTypeName(additionalShaderType) + ":\n" + additionalInfoLog;
+                return {};
+            }
+            program.addShader(additionalShader);
+        }
+        if (additionalShaderType != GL_VERTEX_SHADER)
+            program.addShader(shader);
+        
+        if (!program.link(isVkGLSL ? EShMsgVulkanRules : EShMsgDefault)) {
             infoLog = "Error: [glslang] Cannot link the program of the single shader:\n" + std::to_string(program.getInfoLog());
             return {};
         }
+        program.mapIO();
+        
         std::vector<unsigned> spirv;
         
         SpvOptions spvOptions;
@@ -108,7 +802,7 @@ namespace MG_Util::Program {
             return;
         }
 
-        ankerl::unordered_set<GLint> used_locations;
+        MG_Global::unordered_set<GLint> used_locations;
         GLint auto_location = 0;
         for (auto spirv: allSpirv) {
             spvc_parsed_ir ir = nullptr;
@@ -164,15 +858,47 @@ namespace MG_Util::Program {
                 const spvc_reflected_resource &res = *res_ptr;
                 const char *name = res.name;
                 if (name[0] == '_') continue;
-
+                
                 unsigned spirv_location = spvc_compiler_get_decoration(compiler, res.id,
                                                                        SpvDecorationLocation);
                 GLint final_location;
 
-                if (spirv_location > 0) {
+                spvc_type_id type_id = res.type_id;
-                    if (used_locations.find(spirv_location) != used_locations.end()) {
+                spvc_type type = spvc_compiler_get_type_handle(compiler, type_id);
-                        infoLog += "\nLocation conflict for uniform: " + std::string(name);
+                spvc_basetype base_type = spvc_type_get_basetype(type);
-                        continue;
+                GLenum gl_type = GL_NONE;
+
+                if (spirv_location >= 0 && base_type != SPVC_BASETYPE_SAMPLED_IMAGE) {
+                    auto conflict_it = used_locations.find(spirv_location);
+                    if (conflict_it != used_locations.end()) {
+                        // Check if the conflicting uniform is a sampler
+                        std::string conflicting_name;
+                        for (const auto& entry : prog.uniformLocations) {
+                            if (entry.second == spirv_location) {
+                                conflicting_name = entry.first;
+                                break;
+                            }
+                        }
+                        if(conflicting_name == std::string(name)) {
+                            continue;
+                        } else if (!conflicting_name.empty() && prog.uniformValues.count(conflicting_name) &&
+                                MG_GL::GL::IsSamplerType(prog.uniformValues[conflicting_name].type)) {
+                            // Reassign location for the sampler
+                            GLint new_sampler_loc = auto_location++;
+                            while (used_locations.find(new_sampler_loc) != used_locations.end()) new_sampler_loc++;
+                            prog.uniformLocations[conflicting_name] = new_sampler_loc;
+                            used_locations.erase(conflict_it); // Remove old sampler location
+                            used_locations.insert(new_sampler_loc); // Add new sampler location
+                        } else {
+                            infoLog += "\nLocation conflict for uniform: " + std::string(name) + " at location " + std::to_string(spirv_location);
+                            infoLog += "\nExisting uniforms and locations:";
+                            for (const auto& entry : prog.uniformLocations) {
+                                infoLog += "\n  " + entry.first + ": " + std::to_string(entry.second);
+                            }
+                             infoLog += "\nUsed locations set:";
+                            for (GLint loc : used_locations) infoLog += " " + std::to_string(loc);
+                            continue;
+                        }
                     }
                     final_location = spirv_location;
                 } else {
@@ -184,11 +910,6 @@ namespace MG_Util::Program {
 
                 used_locations.insert(final_location);
 
-                spvc_type_id type_id = res.type_id;
-                spvc_type type = spvc_compiler_get_type_handle(compiler, type_id);
-                spvc_basetype base_type = spvc_type_get_basetype(type);
-                GLenum gl_type = GL_NONE;
-
                 if (base_type == SPVC_BASETYPE_SAMPLED_IMAGE) {
                     SpvDim dim = spvc_type_get_image_dimension(type);
                     bool is_array = spvc_type_get_image_arrayed(type);
@@ -401,7 +1122,7 @@ namespace MG_Util::Program {
         spvc_context_destroy(context);
     }
 
-    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES) {
+    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES, bool isVkGLSL) {
         spvc_context context = nullptr;
         spvc_parsed_ir ir = nullptr;
         spvc_compiler compiler_glsl = nullptr;
@@ -420,12 +1141,15 @@ namespace MG_Util::Program {
         spvc_compiler_create_shader_resources(compiler_glsl, &resources);
         spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, &list, &count);
         spvc_compiler_create_compiler_options(compiler_glsl, &options);
+        
         spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, glslVersion);
         spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, isES ? SPVC_TRUE : SPVC_FALSE);
+        spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, isVkGLSL ? SPVC_TRUE : SPVC_FALSE);
         spvc_compiler_install_compiler_options(compiler_glsl, options);
         spvc_compiler_compile(compiler_glsl, &result);
 
         if (!result) {
+            MG_Util::Debug::LogE("Failed to compile the shader to GLSL: %s", spvc_context_get_last_error_string(context));
             return{};
         }
 
@@ -435,4 +1159,4 @@ namespace MG_Util::Program {
 
         return essl;
     }
-}
+}

MG/MG_UTIL/Program/GLSLTool.h

@@ -5,8 +5,6 @@
 #ifndef MOBILEGL_GLSLTOOL_H
 #define MOBILEGL_GLSLTOOL_H
 
-#include "../../Includes.h"
-
 namespace MG_Util::Program {
     inline static TBuiltInResource InitResources()
     {
@@ -173,11 +171,22 @@ namespace MG_Util::Program {
         }
     }
     
-    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string& source, std::string& infoLog);
+    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string& source, 
-    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source, glslang::TShader *&shader);
+                                             std::string& infoLog, bool isVkGLSL = false, GLenum additionalShaderType = 0,
+                                             const std::string& additionalShaderSource = {});
+    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source,
+                                     glslang::TShader *&shader, bool isVkGLSL = false);
     std::vector<std::vector<unsigned>> CompileMultipleShadersToSPIRV(const ProgramState& state, ProgramObject& prog, std::string& infoLog);
     void ReflectSPIRVUniforms(const std::vector<std::vector<unsigned>>& allSpirv, ProgramObject& prog, std::string& infoLog);
-    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES);
+    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES, bool isVkGLSL = false);
+    std::pair<std::string, std::string> GenerateDefaultUBOForGLSL(const std::pair<std::string,
+                                                                  std::string>& glslSources);
+    void GenerateDefaultUBOForGLSL_Multi(
+            MG_Global::unordered_map<GLuint, std::string> &shaderSources, std::vector<std::string>& outUniformBufferNames);
+    std::string BindInputLayoutLocationsForGLSL(std::vector<uint32_t>& spirv,
+                                                MG_Global::unordered_map<std::string, GLint>&
+                                                        name_location_map);
+    void RenameGLSLBuiltinsForVulkan(std::string &src);
 }
 
 #endif //MOBILEGL_GLSLTOOL_H