[Feat|Fix] (...): Add/Fix lots of stuff, being able not to crash in MC.

CMakeLists.txt

@@ -62,6 +62,7 @@ set(SOURCE_FILES
 
     MobileGL/MG_Impl/EGLImpl/Exporting/Definitions.cpp
     MobileGL/MG_Impl/EGLImpl/Temporary/TemporaryEGLImpl.cpp
+    MobileGL/MG_Impl/EGLImpl/EGLWrapper/EGLWrapper.cpp
     
     # @INSERTION_POINT:SOURCE_FILE_GLIMPL@ #
     MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.cpp
@@ -70,6 +71,7 @@ set(SOURCE_FILES
     MobileGL/MG_Impl/GLImpl/Program/GL_Program.cpp
     MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.cpp
     MobileGL/MG_Impl/GLImpl/Texture/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Texture/ProxyTexture.cpp
     MobileGL/MG_Impl/GLImpl/VertexArray/GL_VertexArray.cpp
     MobileGL/MG_Impl/GLImpl/VertexArray/Validators.cpp
     MobileGL/MG_Impl/GLImpl/Buffer/GL_Buffer.cpp
@@ -77,6 +79,8 @@ set(SOURCE_FILES
     MobileGL/MG_Impl/GLImpl/Exporting/Definitions.cpp
     MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp
 
+    MobileGL/MG_Impl/Init.cpp
+
     MobileGL/MG_Backend/Init.cpp
 
     MobileGL/MG_State/GLState/Core.cpp
@@ -101,9 +105,9 @@ add_library(${CMAKE_PROJECT_NAME} SHARED
 )
 
 set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES
-    C_VISIBILITY_PRESET hidden
+    C_VISIBILITY_PRESET default
-    CXX_VISIBILITY_PRESET hidden
+    CXX_VISIBILITY_PRESET default
-    VISIBILITY_INLINES_HIDDEN ON
+    VISIBILITY_INLINES_HIDDEN OFF
 )
 
 target_include_directories(${CMAKE_PROJECT_NAME} PUBLIC

MobileGL/Init.cpp

@@ -1,4 +1,5 @@
 #include "Includes.h"
+#include <MG_Impl/Init.h>
 #include <MG_Backend/Backends.h>
 #include <MG_State/GLState/Core.h>
 
@@ -10,13 +11,15 @@ namespace MobileGL {
         MGLOG_D("MobileGL State initialized");
         MG_Backend::Init();
         MGLOG_D("MobileGL Backend initialized");
+        MG_Impl::Init();
+        MGLOG_D("MobileGL Implementation initialized");
         glslang::InitializeProcess();
         MGLOG_D("glslang initialized");
-        MGLOG_I("MobileGL Initialized");
+        MGLOG_I("MobileGL initialized");
     }
 
     void MG_Destroy() {
-        MGLOG_I("MobileGL Closing...");
+        MGLOG_I("MobileGL closing...");
         glslang::FinalizeProcess();
         MG_Util::Debug::Close();
     }

MobileGL/MG_Impl/EGLImpl/EGLWrapper/EGLWrapper.cpp

@@ -1,103 +1,88 @@
 #include "EGLWrapper.h"
+#include <Config.h>
+#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
 
+#if MOBILEGL_BACKEND == MOBILEGL_BACKEND_TYPE_DIRECT_GLES
 namespace MobileGL {
     namespace MG_Impl::EGLImpl {
         // TODO: implement complete EGL functionality
 
         EGLSurface CreateWindowSurface(EGLDisplay dpy, EGLConfig config, NativeWindowType window,
                                        const EGLint* attrib_list) {
-            return (EGLSurface)1;
+            return MG_External::EGL::eglCreateWindowSurface(dpy, config, window, attrib_list);
         }
 
         EGLBoolean ChooseConfig(EGLDisplay dpy, const EGLint* attrib_list, EGLConfig* configs, EGLint config_size,
                                 EGLint* num_config) {
-            *num_config = 1;
+            return MG_External::EGL::eglChooseConfig(dpy, attrib_list, configs, config_size, num_config);
-            return EGL_TRUE;
         }
 
         EGLContext CreateContext(EGLDisplay dpy, EGLConfig config, EGLContext shareCtx, const EGLint* attrib_list) {
-            return (EGLContext)1;
+            return MG_External::EGL::eglCreateContext(dpy, config, shareCtx, attrib_list);
         }
 
         EGLBoolean Initialize(EGLDisplay dpy, EGLint* major, EGLint* minor) {
-            if (major) *major = 1;
+            return MG_External::EGL::eglInitialize(dpy, major, minor);
-            if (minor) *minor = 5;
-            return EGL_TRUE;
         }
 
         EGLDisplay GetDisplay(NativeDisplayType display) {
-            return (EGLDisplay)1;
+            return MG_External::EGL::eglGetDisplay(display);
         }
 
         EGLint GetError() {
-            return EGL_SUCCESS;
+            return MG_External::EGL::eglGetError();
         }
 
         EGLBoolean MakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglMakeCurrent(dpy, draw, read, ctx);
         }
 
         EGLBoolean DestroyContext(EGLDisplay dpy, EGLContext ctx) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglDestroyContext(dpy, ctx);
         }
 
         EGLBoolean DestroySurface(EGLDisplay dpy, EGLSurface surface) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglDestroySurface(dpy, surface);
         }
 
         EGLBoolean Terminate(EGLDisplay dpy) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglTerminate(dpy);
         }
 
         EGLBoolean ReleaseThread(void) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglReleaseThread();
         }
 
         EGLContext GetCurrentContext(void) {
-            return (EGLContext)1;
+            return MG_External::EGL::eglGetCurrentContext();
         }
 
         EGLBoolean GetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint* value) {
-            if (attribute == EGL_NATIVE_VISUAL_ID) {
+            return MG_External::EGL::eglGetConfigAttrib(dpy, config, attribute, value);
-#if defined(ANDROID)
-                *value = AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM;
-                return EGL_TRUE;
-#elif defined(__linux__)
-                *value = 0;
-                return EGL_TRUE;
-#elif defined(_WIN32)
-                *value = 0;
-                return EGL_TRUE;
-#else
-                *value = 0;
-                return EGL_FALSE;
-#endif
-            }
-            return EGL_TRUE;
         }
 
         EGLBoolean BindAPI(EGLenum api) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglBindAPI(api);
         }
 
         EGLSurface GetCurrentSurface(EGLint readdraw) {
-            return (EGLSurface)1;
+            return MG_External::EGL::eglGetCurrentSurface(readdraw);
         }
 
         EGLBoolean QuerySurface(EGLDisplay display, EGLSurface surface, EGLint attribute, EGLint* value) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglQuerySurface(display, surface, attribute, value);
         }
 
         EGLBoolean SwapInterval(EGLDisplay dpy, EGLint interval) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglSwapInterval(dpy, interval);
         }
 
         EGLBoolean SwapBuffers(EGLDisplay dpy, EGLSurface draw) {
-            return EGL_TRUE;
+            return MG_External::EGL::eglSwapBuffers(dpy, draw);
         }
 
         EGLSurface CreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint* attrib_list) {
-            return (EGLSurface)1;
+            return MG_External::EGL::eglCreatePbufferSurface(dpy, config, attrib_list);
         }
 
         __eglMustCastToProperFunctionPointerType GetProcAddress(const char* name) {
@@ -115,3 +100,5 @@ namespace MobileGL {
         }
     } // namespace MG_Impl::EGLImpl
 } // namespace MobileGL
+
+#endif

MobileGL/MG_Impl/EGLImpl/Temporary/TemporaryEGLImpl.cpp

@@ -1,5 +1,7 @@
 #include "TemporaryEGLImpl.h"
+#include <Config.h>
 
+#if !(MOBILEGL_BACKEND == MOBILEGL_BACKEND_TYPE_DIRECT_GLES)
 namespace MobileGL {
     namespace MG_Impl::EGLImpl {
         // TODO: implement complete EGL functionality
@@ -115,3 +117,4 @@ namespace MobileGL {
         }
     } // namespace MG_Impl::EGLImpl
 } // namespace MobileGL
+#endif

MobileGL/MG_Impl/GLImpl/Buffer/GL_Buffer.cpp

@@ -3,9 +3,62 @@
 #include <MG_State/GLState/Core.h>
 #include <MG_State/GLState/ErrorState/Error.h>
 #include <MG_Util/Converters/GLToMG/BufferEnumConverter.h>
+#include <MG_Util/Converters/MGToGL/BufferEnumConverter.h>
 
 namespace MobileGL {
     namespace MG_Impl::GLImpl {
+        void GetBufferParameteriv_State(GLenum target, GLenum pname, GLint* params) {
+            if (!params) {
+                MG_State::pGLContext->RecordError(ErrorCode::InvalidValue,
+                                                  MakeShared<GenericErrorInfo>("MG_Impl/GLImpl",
+                                                                               "GetBufferParameteriv_State",
+                                                                               "Params pointer cannot be null."));
+                return;
+            }
+
+            BufferTarget bufferTarget = MG_Util::ConvertGLEnumToBufferTarget(target);
+            if (!BufferImpl::ValidateBufferTarget(bufferTarget)) return;
+
+            auto& bindingSlot = MG_State::pGLContext->GetBufferBindingSlot(bufferTarget);
+
+            auto bufferObject = bindingSlot.GetBoundObject();
+            if (!bufferObject) {
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidOperation,
+                    MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GetBufferParameteriv_State",
+                                                 "Buffer target is bound to no buffer object."));
+                return;
+            }
+
+            switch (pname) {
+            case GL_BUFFER_SIZE:
+                *params = static_cast<GLint>(bufferObject->GetSize());
+                break;
+            case GL_BUFFER_USAGE:
+                *params = MG_Util::ConvertBufferUsageToGLEnum(bufferObject->GetUsage());
+                break;
+            case GL_BUFFER_ACCESS:
+                if (bufferObject->IsMapped()) {
+                    auto access = bufferObject->GetMappingAccess();
+                    if (access & BufferMappingAccessBit::Read && access & BufferMappingAccessBit::Write) {
+                        *params = GL_READ_WRITE;
+                    } else if (access & BufferMappingAccessBit::Read) {
+                        *params = GL_READ_ONLY;
+                    } else if (access & BufferMappingAccessBit::Write) {
+                        *params = GL_WRITE_ONLY;
+                    } else {
+                        *params = 0;
+                    }
+                } else {
+                    *params = 0;
+                }
+                break;
+            case GL_BUFFER_MAPPED:
+                *params = bufferObject->IsMapped() ? GL_TRUE : GL_FALSE;
+                break;
+            }
+        }
+
         void DeleteBuffers_State(GLsizei n, const GLuint* buffers) {
             if (n < 0) {
                 MG_State::pGLContext->RecordError(
@@ -182,7 +235,8 @@ namespace MobileGL {
             const auto storageFlags = BufferMappingAccessBit::Persistent | BufferMappingAccessBit::Coherent;
             auto requiredFlags = accessBits & storageFlags;
             if (requiredFlags) {
-                // TODO: check if the buffer data is created by BufferStorage and its flags after its implementation
+                // TODO: check if the buffer data is created by BufferStorage and its flags after its
+                // implementation
                 MG_State::pGLContext->RecordError(
                     ErrorCode::InvalidOperation,
                     MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "MapBufferRange_State",
@@ -368,9 +422,9 @@ namespace MobileGL {
                 if (offset + size >= mappedRange.start) {
                     MG_State::pGLContext->RecordError(
                         ErrorCode::InvalidOperation,
-                        MakeShared<GenericErrorInfo>(
+                        MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "BufferSubData_State",
-                            "MG_Impl/GLImpl", "BufferSubData_State",
+                                                     "Cannot modify a mapped buffer object unless it was "
-                            "Cannot modify a mapped buffer object unless it was mapped with GL_MAP_PERSISTENT_BIT."));
+                                                     "mapped with GL_MAP_PERSISTENT_BIT."));
                     return;
                 }
             }
@@ -441,6 +495,10 @@ namespace MobileGL {
         }
 
         /* @INSERTION_POINT:FUNCTION_IMPLEMENTATION@ */
+        void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params) {
+            GetBufferParameteriv_State(target, pname, params);
+        }
+
         GLboolean IsBuffer(GLuint buffer) {
             return IsBuffer_State(buffer);
         }

MobileGL/MG_Impl/GLImpl/Buffer/GL_Buffer.h

@@ -4,6 +4,7 @@
 namespace MobileGL {
     namespace MG_Impl::GLImpl {
         /* @INSERTION_POINT:FUNCTION_DECLARATION@ */
+        void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params);
         GLboolean IsBuffer(GLuint buffer);
         void DeleteBuffers(GLsizei n, const GLuint* buffers);
         void FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);

MobileGL/MG_Impl/GLImpl/Exporting/Definitions.cpp

@@ -37,8 +37,8 @@ DECLARE_GL_FUNCTION_HEAD(const GLubyte*, GetString, GLenum name) DECLARE_GL_FUNC
 DECLARE_GL_FUNCTION_HEAD(void*, MapBuffer, GLenum target, GLenum access) DECLARE_GL_FUNCTION_END(void*, MapBuffer, target, access)
 DECLARE_GL_FUNCTION_HEAD(void, ClearDepth, GLclampd depth) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearDepth, depth)
 DECLARE_GL_FUNCTION_HEAD(void, ActiveTexture, GLenum texture) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ActiveTexture, texture)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, AttachShader, GLuint program, GLuint shader) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, AttachShader, program, shader)
+DECLARE_GL_FUNCTION_HEAD(void, AttachShader, GLuint program, GLuint shader) DECLARE_GL_FUNCTION_END_NO_RETURN(void, AttachShader, program, shader)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, BindAttribLocation, GLuint program, GLuint index, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, BindAttribLocation, program, index, name)
+DECLARE_GL_FUNCTION_HEAD(void, BindAttribLocation, GLuint program, GLuint index, const GLchar* name) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindAttribLocation, program, index, name)
 DECLARE_GL_FUNCTION_HEAD(void, BindBuffer, GLenum target, GLuint buffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindBuffer, target, buffer)
 DECLARE_GL_FUNCTION_HEAD(void, BindFramebuffer, GLenum target, GLuint framebuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindFramebuffer, target, framebuffer)
 DECLARE_GL_FUNCTION_HEAD(void, BindRenderbuffer, GLenum target, GLuint renderbuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, BindRenderbuffer, target, renderbuffer)
@@ -56,24 +56,24 @@ DECLARE_GL_FUNCTION_HEAD(void, ClearColor, GLfloat red, GLfloat green, GLfloat b
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ClearDepthf, GLfloat d) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ClearDepthf, d)
 DECLARE_GL_FUNCTION_HEAD(void, ClearStencil, GLint s) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ClearStencil, s)
 DECLARE_GL_FUNCTION_HEAD(void, ColorMask, GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ColorMask, red, green, blue, alpha)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, CompileShader, GLuint shader) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, CompileShader, shader)
+DECLARE_GL_FUNCTION_HEAD(void, CompileShader, GLuint shader) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CompileShader, shader)
 DECLARE_GL_FUNCTION_HEAD(void, CompressedTexImage2D, GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CompressedTexImage2D, target, level, internalformat, width, height, border, imageSize, data)
 DECLARE_GL_FUNCTION_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_END_NO_RETURN(void, CompressedTexSubImage2D, target, level, xoffset, yoffset, width, height, format, imageSize, data)
 DECLARE_GL_FUNCTION_HEAD(void, CopyTexImage2D, GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CopyTexImage2D, target, level, internalformat, x, y, width, height, border)
 DECLARE_GL_FUNCTION_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_STUB_HEAD(GLuint, CreateProgram) DECLARE_GL_FUNCTION_STUB_END(GLuint, CreateProgram)
+DECLARE_GL_FUNCTION_HEAD(GLuint, CreateProgram) DECLARE_GL_FUNCTION_END(GLuint, CreateProgram)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLuint, CreateShader, GLenum type) DECLARE_GL_FUNCTION_STUB_END(GLuint, CreateShader, type)
+DECLARE_GL_FUNCTION_HEAD(GLuint, CreateShader, GLenum type) DECLARE_GL_FUNCTION_END(GLuint, CreateShader, type)
 DECLARE_GL_FUNCTION_HEAD(void, CullFace, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, CullFace, mode)
 DECLARE_GL_FUNCTION_HEAD(void, DeleteBuffers, GLsizei n, const GLuint* buffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteBuffers, n, buffers)
 DECLARE_GL_FUNCTION_HEAD(void, DeleteFramebuffers, GLsizei n, const GLuint* framebuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteFramebuffers, n, framebuffers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DeleteProgram, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DeleteProgram, program)
+DECLARE_GL_FUNCTION_HEAD(void, DeleteProgram, GLuint program) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteProgram, program)
 DECLARE_GL_FUNCTION_HEAD(void, DeleteRenderbuffers, GLsizei n, const GLuint* renderbuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteRenderbuffers, n, renderbuffers)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DeleteShader, GLuint shader) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DeleteShader, shader)
+DECLARE_GL_FUNCTION_HEAD(void, DeleteShader, GLuint shader) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteShader, shader)
 DECLARE_GL_FUNCTION_HEAD(void, DeleteTextures, GLsizei n, const GLuint* textures) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DeleteTextures, n, textures)
 DECLARE_GL_FUNCTION_HEAD(void, DepthFunc, GLenum func) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DepthFunc, func)
 DECLARE_GL_FUNCTION_HEAD(void, DepthMask, GLboolean flag) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DepthMask, flag)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, DepthRangef, GLfloat n, GLfloat f) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DepthRangef, n, f)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, DetachShader, GLuint program, GLuint shader) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DetachShader, program, shader)
+DECLARE_GL_FUNCTION_HEAD(void, DetachShader, GLuint program, GLuint shader) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DetachShader, program, shader)
 DECLARE_GL_FUNCTION_HEAD(void, Disable, GLenum cap) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Disable, cap)
 DECLARE_GL_FUNCTION_HEAD(void, DisableVertexAttribArray, GLuint index) DECLARE_GL_FUNCTION_END_NO_RETURN(void, DisableVertexAttribArray, index)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, DrawArrays, GLenum mode, GLint first, GLsizei count) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, DrawArrays, mode, first, count)
@@ -85,33 +85,33 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, Flush) DECLARE_GL_FUNCTION_STUB_END_NO_RETUR
 DECLARE_GL_FUNCTION_HEAD(void, FramebufferRenderbuffer, GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FramebufferRenderbuffer, target, attachment, renderbuffertarget, renderbuffer)
 DECLARE_GL_FUNCTION_HEAD(void, FramebufferTexture2D, GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FramebufferTexture2D, target, attachment, textarget, texture, level)
 DECLARE_GL_FUNCTION_HEAD(void, FrontFace, GLenum mode) DECLARE_GL_FUNCTION_END_NO_RETURN(void, FrontFace, mode)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GenBuffers, GLsizei n, GLuint* buffers) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GenBuffers, n, buffers)
+DECLARE_GL_FUNCTION_HEAD(void, GenBuffers, GLsizei n, GLuint* buffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenBuffers, n, buffers)
 DECLARE_GL_FUNCTION_HEAD(void, GenerateMipmap, GLenum target) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenerateMipmap, target)
 DECLARE_GL_FUNCTION_HEAD(void, GenFramebuffers, GLsizei n, GLuint* framebuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenFramebuffers, n, framebuffers)
 DECLARE_GL_FUNCTION_HEAD(void, GenRenderbuffers, GLsizei n, GLuint* renderbuffers) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenRenderbuffers, n, renderbuffers)
 DECLARE_GL_FUNCTION_HEAD(void, GenTextures, GLsizei n, GLuint* textures) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GenTextures, n, textures)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetActiveAttrib, GLuint program, GLuint index, GLsizei bufSize, GLsizei* length, GLint* size, GLenum* type, GLchar* name) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetActiveAttrib, program, index, bufSize, length, size, type, name)
+DECLARE_GL_FUNCTION_HEAD(void, GetActiveAttrib, GLuint program, GLuint index, GLsizei bufSize, GLsizei* length, GLint* size, GLenum* type, GLchar* name) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetActiveAttrib, program, index, bufSize, length, size, type, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetActiveUniform, GLuint program, GLuint index, GLsizei bufSize, GLsizei* length, GLint* size, GLenum* type, GLchar* name) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetActiveUniform, program, index, bufSize, length, size, type, name)
+DECLARE_GL_FUNCTION_HEAD(void, GetActiveUniform, GLuint program, GLuint index, GLsizei bufSize, GLsizei* length, GLint* size, GLenum* type, GLchar* name) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetActiveUniform, program, index, bufSize, length, size, type, name)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetAttachedShaders, GLuint program, GLsizei maxCount, GLsizei* count, GLuint* shaders) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetAttachedShaders, program, maxCount, count, shaders)
+DECLARE_GL_FUNCTION_HEAD(void, GetAttachedShaders, GLuint program, GLsizei maxCount, GLsizei* count, GLuint* shaders) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetAttachedShaders, program, maxCount, count, shaders)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLint, GetAttribLocation, GLuint program, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END(GLint, GetAttribLocation, program, name)
+DECLARE_GL_FUNCTION_HEAD(GLint, GetAttribLocation, GLuint program, const GLchar* name) DECLARE_GL_FUNCTION_END(GLint, GetAttribLocation, program, name)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBooleanv, GLenum pname, GLboolean* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBooleanv, pname, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetBufferParameteriv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetBufferParameteriv, target, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetBufferParameteriv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetBufferParameteriv, target, pname, params)
 DECLARE_GL_FUNCTION_HEAD(GLenum, GetError) DECLARE_GL_FUNCTION_END(GLenum, GetError)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetFloatv, GLenum pname, GLfloat* data) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetFloatv, pname, data)
 DECLARE_GL_FUNCTION_HEAD(void, GetFramebufferAttachmentParameteriv, GLenum target, GLenum attachment, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetFramebufferAttachmentParameteriv, target, attachment, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, GetIntegerv, GLenum pname, GLint* data) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetIntegerv, pname, data)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramiv, GLuint program, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramiv, program, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetProgramiv, GLuint program, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetProgramiv, program, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetProgramInfoLog, GLuint program, GLsizei bufSize, GLsizei* length, GLchar* infoLog) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetProgramInfoLog, program, bufSize, length, infoLog)
+DECLARE_GL_FUNCTION_HEAD(void, GetProgramInfoLog, GLuint program, GLsizei bufSize, GLsizei* length, GLchar* infoLog) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetProgramInfoLog, program, bufSize, length, infoLog)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetRenderbufferParameteriv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetRenderbufferParameteriv, target, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetShaderiv, GLuint shader, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetShaderiv, shader, pname, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetShaderiv, GLuint shader, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetShaderiv, shader, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetShaderInfoLog, GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* infoLog) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetShaderInfoLog, shader, bufSize, length, infoLog)
+DECLARE_GL_FUNCTION_HEAD(void, GetShaderInfoLog, GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* infoLog) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetShaderInfoLog, shader, bufSize, length, infoLog)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetShaderPrecisionFormat, GLenum shadertype, GLenum precisiontype, GLint* range, GLint* precision) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetShaderPrecisionFormat, shadertype, precisiontype, range, precision)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetShaderSource, GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* source) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetShaderSource, shader, bufSize, length, source)
+DECLARE_GL_FUNCTION_HEAD(void, GetShaderSource, GLuint shader, GLsizei bufSize, GLsizei* length, GLchar* source) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetShaderSource, shader, bufSize, length, source)
 DECLARE_GL_FUNCTION_HEAD(void, GetTexParameterfv, GLenum target, GLenum pname, GLfloat* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTexParameterfv, target, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, GetTexParameteriv, GLenum target, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetTexParameteriv, target, pname, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetUniformfv, GLuint program, GLint location, GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetUniformfv, program, location, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetUniformfv, GLuint program, GLint location, GLfloat* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetUniformfv, program, location, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, GetUniformiv, GLuint program, GLint location, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetUniformiv, program, location, params)
+DECLARE_GL_FUNCTION_HEAD(void, GetUniformiv, GLuint program, GLint location, GLint* params) DECLARE_GL_FUNCTION_END_NO_RETURN(void, GetUniformiv, program, location, params)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLint, GetUniformLocation, GLuint program, const GLchar* name) DECLARE_GL_FUNCTION_STUB_END(GLint, GetUniformLocation, program, name)
+DECLARE_GL_FUNCTION_HEAD(GLint, GetUniformLocation, GLuint program, const GLchar* name) DECLARE_GL_FUNCTION_END(GLint, GetUniformLocation, program, name)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexAttribfv, GLuint index, GLenum pname, GLfloat* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexAttribfv, index, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexAttribiv, GLuint index, GLenum pname, GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexAttribiv, index, pname, params)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, GetVertexAttribPointerv, GLuint index, GLenum pname, void** pointer) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, GetVertexAttribPointerv, index, pname, pointer)
@@ -119,12 +119,12 @@ DECLARE_GL_FUNCTION_HEAD(void, Hint, GLenum target, GLenum mode) DECLARE_GL_FUNC
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsBuffer, GLuint buffer) DECLARE_GL_FUNCTION_END(GLboolean, IsBuffer, buffer)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsEnabled, GLenum cap) DECLARE_GL_FUNCTION_END(GLboolean, IsEnabled, cap)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsFramebuffer, GLuint framebuffer) DECLARE_GL_FUNCTION_END(GLboolean, IsFramebuffer, framebuffer)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, IsProgram, GLuint program) DECLARE_GL_FUNCTION_STUB_END(GLboolean, IsProgram, program)
+DECLARE_GL_FUNCTION_HEAD(GLboolean, IsProgram, GLuint program) DECLARE_GL_FUNCTION_END(GLboolean, IsProgram, program)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsRenderbuffer, GLuint renderbuffer) DECLARE_GL_FUNCTION_END(GLboolean, IsRenderbuffer, renderbuffer)
-DECLARE_GL_FUNCTION_STUB_HEAD(GLboolean, IsShader, GLuint shader) DECLARE_GL_FUNCTION_STUB_END(GLboolean, IsShader, shader)
+DECLARE_GL_FUNCTION_HEAD(GLboolean, IsShader, GLuint shader) DECLARE_GL_FUNCTION_END(GLboolean, IsShader, shader)
 DECLARE_GL_FUNCTION_HEAD(GLboolean, IsTexture, GLuint texture) DECLARE_GL_FUNCTION_END(GLboolean, IsTexture, texture)
 DECLARE_GL_FUNCTION_HEAD(void, LineWidth, GLfloat width) DECLARE_GL_FUNCTION_END_NO_RETURN(void, LineWidth, width)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, LinkProgram, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, LinkProgram, program)
+DECLARE_GL_FUNCTION_HEAD(void, LinkProgram, GLuint program) DECLARE_GL_FUNCTION_END_NO_RETURN(void, LinkProgram, program)
 DECLARE_GL_FUNCTION_HEAD(void, PixelStorei, GLenum pname, GLint param) DECLARE_GL_FUNCTION_END_NO_RETURN(void, PixelStorei, pname, param)
 DECLARE_GL_FUNCTION_HEAD(void, PolygonOffset, GLfloat factor, GLfloat units) DECLARE_GL_FUNCTION_END_NO_RETURN(void, PolygonOffset, factor, units)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ReadPixels, GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ReadPixels, x, y, width, height, format, type, pixels)
@@ -133,7 +133,7 @@ DECLARE_GL_FUNCTION_HEAD(void, RenderbufferStorage, GLenum target, GLenum intern
 DECLARE_GL_FUNCTION_HEAD(void, SampleCoverage, GLfloat value, GLboolean invert) DECLARE_GL_FUNCTION_END_NO_RETURN(void, SampleCoverage, value, invert)
 DECLARE_GL_FUNCTION_HEAD(void, Scissor, GLint x, GLint y, GLsizei width, GLsizei height) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Scissor, x, y, width, height)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, ShaderBinary, GLsizei count, const GLuint* shaders, GLenum binaryformat, const void* binary, GLsizei length) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ShaderBinary, count, shaders, binaryformat, binary, length)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ShaderSource, GLuint shader, GLsizei count, const GLchar* const* string, const GLint* length) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ShaderSource, shader, count, string, length)
+DECLARE_GL_FUNCTION_HEAD(void, ShaderSource, GLuint shader, GLsizei count, const GLchar* const* string, const GLint* length) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ShaderSource, shader, count, string, length)
 DECLARE_GL_FUNCTION_HEAD(void, StencilFunc, GLenum func, GLint ref, GLuint mask) DECLARE_GL_FUNCTION_END_NO_RETURN(void, StencilFunc, func, ref, mask)
 DECLARE_GL_FUNCTION_HEAD(void, StencilFuncSeparate, GLenum face, GLenum func, GLint ref, GLuint mask) DECLARE_GL_FUNCTION_END_NO_RETURN(void, StencilFuncSeparate, face, func, ref, mask)
 DECLARE_GL_FUNCTION_HEAD(void, StencilMask, GLuint mask) DECLARE_GL_FUNCTION_END_NO_RETURN(void, StencilMask, mask)
@@ -146,27 +146,27 @@ DECLARE_GL_FUNCTION_STUB_HEAD(void, TexParameterfv, GLenum target, GLenum pname,
 DECLARE_GL_FUNCTION_HEAD(void, TexParameteri, GLenum target, GLenum pname, GLint param) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TexParameteri, target, pname, param)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, TexParameteriv, GLenum target, GLenum pname, const GLint* params) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, TexParameteriv, target, pname, params)
 DECLARE_GL_FUNCTION_HEAD(void, TexSubImage2D, GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels) DECLARE_GL_FUNCTION_END_NO_RETURN(void, TexSubImage2D, target, level, xoffset, yoffset, width, height, format, type, pixels)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1f, GLint location, GLfloat v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1f, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1f, GLint location, GLfloat v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1f, location, v0)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1fv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1fv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1i, GLint location, GLint v0) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1i, location, v0)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1i, GLint location, GLint v0) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1i, location, v0)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform1iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform1iv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform1iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform1iv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2f, GLint location, GLfloat v0, GLfloat v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2f, location, v0, v1)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform2f, GLint location, GLfloat v0, GLfloat v1) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform2f, location, v0, v1)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2fv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform2fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform2fv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2i, GLint location, GLint v0, GLint v1) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2i, location, v0, v1)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform2i, GLint location, GLint v0, GLint v1) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform2i, location, v0, v1)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform2iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform2iv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform2iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform2iv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3f, GLint location, GLfloat v0, GLfloat v1, GLfloat v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3f, location, v0, v1, v2)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform3f, GLint location, GLfloat v0, GLfloat v1, GLfloat v2) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform3f, location, v0, v1, v2)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3fv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform3fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform3fv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3i, GLint location, GLint v0, GLint v1, GLint v2) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3i, location, v0, v1, v2)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform3i, GLint location, GLint v0, GLint v1, GLint v2) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform3i, location, v0, v1, v2)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform3iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform3iv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform3iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform3iv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4f, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4f, location, v0, v1, v2, v3)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform4f, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform4f, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4fv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform4fv, GLint location, GLsizei count, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform4fv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4i, GLint location, GLint v0, GLint v1, GLint v2, GLint v3) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4i, location, v0, v1, v2, v3)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform4i, GLint location, GLint v0, GLint v1, GLint v2, GLint v3) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform4i, location, v0, v1, v2, v3)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, Uniform4iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, Uniform4iv, location, count, value)
+DECLARE_GL_FUNCTION_HEAD(void, Uniform4iv, GLint location, GLsizei count, const GLint* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, Uniform4iv, location, count, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, UniformMatrix2fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UniformMatrix2fv, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix2fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix2fv, location, count, transpose, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, UniformMatrix3fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UniformMatrix3fv, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix3fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix3fv, location, count, transpose, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, UniformMatrix4fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UniformMatrix4fv, location, count, transpose, value)
+DECLARE_GL_FUNCTION_HEAD(void, UniformMatrix4fv, GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UniformMatrix4fv, location, count, transpose, value)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, UseProgram, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, UseProgram, program)
+DECLARE_GL_FUNCTION_HEAD(void, UseProgram, GLuint program) DECLARE_GL_FUNCTION_END_NO_RETURN(void, UseProgram, program)
-DECLARE_GL_FUNCTION_STUB_HEAD(void, ValidateProgram, GLuint program) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, ValidateProgram, program)
+DECLARE_GL_FUNCTION_HEAD(void, ValidateProgram, GLuint program) DECLARE_GL_FUNCTION_END_NO_RETURN(void, ValidateProgram, program)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib1f, GLuint index, GLfloat x) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttrib1f, index, x)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib1fv, GLuint index, const GLfloat* v) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttrib1fv, index, v)
 DECLARE_GL_FUNCTION_STUB_HEAD(void, VertexAttrib2f, GLuint index, GLfloat x, GLfloat y) DECLARE_GL_FUNCTION_STUB_END_NO_RETURN(void, VertexAttrib2f, index, x, y)

MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.cpp

@@ -1,7 +1,6 @@
 #include "GL_Framebuffer.h"
-#include "GL/glext.h"
 #include "Validators.h"
-#include <MG_State/GLState/Core.h>
+#include <MG_Impl/GLImpl/Texture/Validators.h>
 #include <MG_State/GLState/ErrorState/Error.h>
 #include <MG_Util/Converters/GLToMG/FramebufferEnumConverter.h>
 
@@ -70,17 +69,20 @@ namespace MobileGL {
         void FramebufferTexture2D_State(GLenum target, GLenum attachment, GLenum textarget, GLuint texture,
                                         GLint level) {
             if (target == GL_FRAMEBUFFER) {
-                FramebufferTexture2D_State(GL_DRAW_FRAMEBUFFER, attachment, textarget, texture, level);
+                target = GL_DRAW_FRAMEBUFFER;
-                FramebufferTexture2D_State(GL_READ_FRAMEBUFFER, attachment, textarget, texture, level);
+            }
-                return;
+
+            if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+                FramebufferTexture2D_State(target, GL_DEPTH_ATTACHMENT, textarget, texture, level);
+                FramebufferTexture2D_State(target, GL_STENCIL_ATTACHMENT, textarget, texture, level);
             }
 
             FramebufferAttachmentType attachmentType = MG_Util::ConvertGLEnumToFramebufferAttachmentType(attachment);
-            if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
-
-            if (!FramebufferImpl::ValidateFramebufferName(texture, true)) return;
             FramebufferTarget framebufferTarget = MG_Util::ConvertGLEnumToFramebufferTarget(target);
+
+            if (!FramebufferImpl::ValidateFramebufferAttachmentType(attachmentType)) return;
             if (!FramebufferImpl::ValidateFramebufferTarget(framebufferTarget)) return;
+            if (!TextureImpl::ValidateTextureName(texture)) return;
 
             auto& bindingSlot = MG_State::pGLContext->GetFramebufferBindingSlot(framebufferTarget);
             auto framebufferObject = bindingSlot.GetBoundObject();
@@ -287,5 +289,9 @@ namespace MobileGL {
         void BindFramebuffer(GLenum target, GLuint framebuffer) {
             BindFramebuffer_State(target, framebuffer);
         }
+
+        namespace FramebufferImpl {
+            DefaultFramebufferInfo* pDefaultFramebufferInfo;
+        }
     } // namespace MG_Impl::GLImpl
 } // namespace MobileGL

MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h

@@ -1,5 +1,7 @@
 #pragma once
+#include "MG_State/GLState/FramebufferState/FramebufferObject.h"
 #include <Includes.h>
+#include <MG_State/GLState/Core.h>
 
 namespace MobileGL {
     namespace MG_Impl::GLImpl {
@@ -29,5 +31,16 @@ namespace MobileGL {
                              GLint dstY1, GLbitfield mask, GLenum filter);
         void BindRenderbuffer(GLenum target, GLuint renderbuffer);
         void BindFramebuffer(GLenum target, GLuint framebuffer);
+
+        namespace FramebufferImpl {
+            struct DefaultFramebufferInfo {
+                SharedPtr<MG_State::GLState::FramebufferObject> defaultFBO;
+                SharedPtr<MG_State::GLState::ITextureObject> colorAttachment;
+                SharedPtr<MG_State::GLState::ITextureObject> depthAttachment;
+                SharedPtr<MG_State::GLState::ITextureObject> stencilAttachment;
+            };
+
+            extern DefaultFramebufferInfo* pDefaultFramebufferInfo;
+        } // namespace FramebufferImpl
     } // namespace MG_Impl::GLImpl
 } // namespace MobileGL

MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp

@@ -29,10 +29,10 @@ namespace MobileGL {
             case GL_VERSION: {
                 if (versionStr.empty()) {
                     versionStr =
-                        std::format("{} {}, {} Backend, Version {}",
+                        std::format("{} {} {}, {} Backend",
                                     MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLVersion.toString().c_str(),
-                                    MG_Config::ProjectName.c_str(), MG_Config::RendererInfoPtr->BackendName.c_str(),
+                                    MG_Config::ProjectName.c_str(), MG_Config::CoreVersion.toString().c_str(),
-                                    MG_Config::CoreVersion.toString().c_str());
+                                    MG_Config::RendererInfoPtr->BackendName.c_str());
                 }
                 return (const GLubyte*)versionStr.c_str();
             }
@@ -115,6 +115,9 @@ namespace MobileGL {
             case GL_MINOR_VERSION:
                 params[0] = MG_Config::RendererInfoPtr->RendererGLInfo.TargetGLVersion.Minor;
                 break;
+            case GL_MAX_TEXTURE_SIZE:
+                params[0] = 1024 * 64; // TODO: get from backend
+                break;
 
                 // State
                 // TODO

MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.cpp

@@ -1,8 +1,8 @@
 #include "GL_Texture.h"
-#include "GL/glext.h"
+#include "GL/gl.h"
-#include "MG_State/GLState/TextureState/TextureObject.h"
 #include "MG_Util/Types.h"
 #include "Validators.h"
+#include "ProxyTexture.h"
 #include <MG_State/GLState/Core.h>
 #include <MG_Util/Metrics/TextureMetrics.h>
 #include <MG_State/GLState/ErrorState/Error.h>
@@ -93,11 +93,142 @@ namespace MobileGL {
         }
 
         void TexParameterf_State(GLenum target, GLenum pname, GLfloat param) {
-            // TODO: implement
+
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject =
+                    TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_MAG_FILTER:
+                textureObject->GetSamplerObject()->SetMagFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+                break;
+            case GL_TEXTURE_MIN_FILTER:
+                textureObject->GetSamplerObject()->SetMinFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+                break;
+            case GL_TEXTURE_MIN_LOD: {
+                Float maxLod = textureObject->GetSamplerObject()->GetMaxLod();
+                textureObject->GetSamplerObject()->SetLodRange(param, maxLod);
+                break;
+            }
+            case GL_TEXTURE_MAX_LOD: {
+                Float minLod = textureObject->GetSamplerObject()->GetMinLod();
+                textureObject->GetSamplerObject()->SetLodRange(minLod, param);
+                break;
+            }
+            case GL_TEXTURE_BASE_LEVEL:
+            case GL_TEXTURE_MAX_LEVEL:
+            case GL_TEXTURE_SWIZZLE_R:
+            case GL_TEXTURE_SWIZZLE_G:
+            case GL_TEXTURE_SWIZZLE_B:
+            case GL_TEXTURE_SWIZZLE_A:
+            case GL_TEXTURE_SWIZZLE_RGBA:
+            case GL_TEXTURE_BORDER_COLOR:
+                break; // TODO
+            case GL_TEXTURE_WRAP_S:
+                textureObject->GetSamplerObject()->SetWrapS(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_WRAP_T:
+                textureObject->GetSamplerObject()->SetWrapT(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_WRAP_R:
+                textureObject->GetSamplerObject()->SetWrapR(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                textureObject->GetSamplerObject()->SetCompareMode(MG_Util::ConvertGLEnumToSamplerCompareMode(param));
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                textureObject->GetSamplerObject()->SetSamplerCompareFunc(
+                    MG_Util::ConvertGLEnumToSamplerCompareFunc(param));
+                break;
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "TexParameteri_State",
+                                                                         "pname is not a valid texture parameter."));
+                return;
+            }
         }
 
         void TexParameteri_State(GLenum target, GLenum pname, GLint param) {
-            // TODO: implement
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject =
+                    TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_MAG_FILTER:
+                textureObject->GetSamplerObject()->SetMagFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+                break;
+            case GL_TEXTURE_MIN_FILTER:
+                textureObject->GetSamplerObject()->SetMinFilter(MG_Util::ConvertGLEnumToSamplerFilterMode(param));
+                break;
+            case GL_TEXTURE_MIN_LOD: {
+                Float maxLod = textureObject->GetSamplerObject()->GetMaxLod();
+                textureObject->GetSamplerObject()->SetLodRange(param, maxLod);
+                break;
+            }
+            case GL_TEXTURE_MAX_LOD: {
+                Float minLod = textureObject->GetSamplerObject()->GetMinLod();
+                textureObject->GetSamplerObject()->SetLodRange(minLod, param);
+                break;
+            }
+            case GL_TEXTURE_BASE_LEVEL:
+            case GL_TEXTURE_MAX_LEVEL:
+            case GL_TEXTURE_SWIZZLE_R:
+            case GL_TEXTURE_SWIZZLE_G:
+            case GL_TEXTURE_SWIZZLE_B:
+            case GL_TEXTURE_SWIZZLE_A:
+            case GL_TEXTURE_SWIZZLE_RGBA:
+            case GL_TEXTURE_BORDER_COLOR:
+                break; // TODO
+            case GL_TEXTURE_WRAP_S:
+                textureObject->GetSamplerObject()->SetWrapS(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_WRAP_T:
+                textureObject->GetSamplerObject()->SetWrapT(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_WRAP_R:
+                textureObject->GetSamplerObject()->SetWrapR(MG_Util::ConvertGLEnumToSamplerWrapMode(param));
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                textureObject->GetSamplerObject()->SetCompareMode(MG_Util::ConvertGLEnumToSamplerCompareMode(param));
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                textureObject->GetSamplerObject()->SetSamplerCompareFunc(
+                    MG_Util::ConvertGLEnumToSamplerCompareFunc(param));
+                break;
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "TexParameteri_State",
+                                                                         "pname is not a valid texture parameter."));
+                return;
+            }
         }
 
         void TexImage3DMultisample_State(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width,
@@ -148,9 +279,16 @@ namespace MobileGL {
             // indicated by type.
 
             // ======================= Processing ================================
-            auto activeUnit = MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject =
+                    TextureImpl::pProxyTextureManager->CreateOrReplaceProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
                 auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
-            auto textureObject = bindingSlot.GetBoundObject();
+                textureObject = bindingSlot.GetBoundObject();
+            }
 
             // ===================== Error Checking ==============================
             if (!TextureImpl::ValidateTextureObject(textureObject)) return;
@@ -189,19 +327,307 @@ namespace MobileGL {
         }
 
         void GetTexParameteriv_State(GLenum target, GLenum pname, GLint* params) {
-            // TODO: implement
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject = TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_MAG_FILTER:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerFilterModeToGLEnum(textureObject->GetSamplerObject()->GetMagFilter());
+                }
+                break;
+            case GL_TEXTURE_MIN_FILTER:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerFilterModeToGLEnum(textureObject->GetSamplerObject()->GetMinFilter());
+                }
+                break;
+            case GL_TEXTURE_MIN_LOD:
+                if (params) {
+                    *params = static_cast<GLint>(textureObject->GetSamplerObject()->GetMinLod());
+                }
+                break;
+            case GL_TEXTURE_MAX_LOD:
+                if (params) {
+                    *params = static_cast<GLint>(textureObject->GetSamplerObject()->GetMaxLod());
+                }
+                break;
+            case GL_TEXTURE_BASE_LEVEL:
+            case GL_TEXTURE_MAX_LEVEL:
+            case GL_TEXTURE_SWIZZLE_R:
+            case GL_TEXTURE_SWIZZLE_G:
+            case GL_TEXTURE_SWIZZLE_B:
+            case GL_TEXTURE_SWIZZLE_A:
+            case GL_TEXTURE_SWIZZLE_RGBA:
+            case GL_TEXTURE_BORDER_COLOR:
+                break; // TODO
+            case GL_TEXTURE_WRAP_S:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapS());
+                }
+                break;
+            case GL_TEXTURE_WRAP_T:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapT());
+                }
+                break;
+            case GL_TEXTURE_WRAP_R:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapR());
+                }
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerCompareModeToGLEnum(textureObject->GetSamplerObject()->GetCompareMode());
+                }
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerCompareFuncToGLEnum(
+                        textureObject->GetSamplerObject()->GetSamplerCompareFunc());
+                }
+                break;
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GetTexParameteriv_State",
+                                                                         "pname is not a valid texture parameter."));
+                return;
+            }
         }
 
         void GetTexParameterfv_State(GLenum target, GLenum pname, GLfloat* params) {
-            // TODO: implement
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject = TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_MAG_FILTER:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerFilterModeToGLEnum(textureObject->GetSamplerObject()->GetMagFilter());
+                }
+                break;
+            case GL_TEXTURE_MIN_FILTER:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerFilterModeToGLEnum(textureObject->GetSamplerObject()->GetMinFilter());
+                }
+                break;
+            case GL_TEXTURE_MIN_LOD:
+                if (params) {
+                    *params = static_cast<GLfloat>(textureObject->GetSamplerObject()->GetMinLod());
+                }
+                break;
+            case GL_TEXTURE_MAX_LOD:
+                if (params) {
+                    *params = static_cast<GLfloat>(textureObject->GetSamplerObject()->GetMaxLod());
+                }
+                break;
+            case GL_TEXTURE_BASE_LEVEL:
+            case GL_TEXTURE_MAX_LEVEL:
+            case GL_TEXTURE_SWIZZLE_R:
+            case GL_TEXTURE_SWIZZLE_G:
+            case GL_TEXTURE_SWIZZLE_B:
+            case GL_TEXTURE_SWIZZLE_A:
+            case GL_TEXTURE_SWIZZLE_RGBA:
+            case GL_TEXTURE_BORDER_COLOR:
+                break; // TODO
+            case GL_TEXTURE_WRAP_S:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapS());
+                }
+                break;
+            case GL_TEXTURE_WRAP_T:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapT());
+                }
+                break;
+            case GL_TEXTURE_WRAP_R:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerWrapModeToGLEnum(textureObject->GetSamplerObject()->GetWrapR());
+                }
+                break;
+            case GL_TEXTURE_COMPARE_MODE:
+                if (params) {
+                    *params =
+                        MG_Util::ConvertSamplerCompareModeToGLEnum(textureObject->GetSamplerObject()->GetCompareMode());
+                }
+                break;
+            case GL_TEXTURE_COMPARE_FUNC:
+                if (params) {
+                    *params = MG_Util::ConvertSamplerCompareFuncToGLEnum(
+                        textureObject->GetSamplerObject()->GetSamplerCompareFunc());
+                }
+                break;
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum, MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GetTexParameterfv_State",
+                                                                         "pname is not a valid texture parameter."));
+                return;
+            }
         }
 
         void GetTexLevelParameteriv_State(GLenum target, GLint level, GLenum pname, GLint* params) {
-            // TODO: implement
+            MGLOG_D("GetTexLevelParameteriv_State called");
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ===================== Error Checking ==============================
+            if (!TextureImpl::ValidateTextureUploadTarget(textureUploadingTarget)) return;
+            if (!TextureImpl::ValidateTextureLevelNumber(level)) return;
+            if (!TextureImpl::ValidateTextureLevelWithUploadTarget(textureUploadingTarget, level)) return;
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject = TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_WIDTH:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.x();
+                }
+                break;
+            case GL_TEXTURE_HEIGHT:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.y();
+                }
+                break;
+            case GL_TEXTURE_DEPTH:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.z();
+                }
+                break;
+            case GL_TEXTURE_INTERNAL_FORMAT:
+                if (params) {
+                    *params = MG_Util::ConvertTextureInternalFormatToGLEnum(textureObject->GetFormat());
+                }
+                break;
+            case GL_TEXTURE_RED_TYPE:
+            case GL_TEXTURE_GREEN_TYPE:
+            case GL_TEXTURE_BLUE_TYPE:
+            case GL_TEXTURE_ALPHA_TYPE:
+            case GL_TEXTURE_DEPTH_TYPE:
+            case GL_TEXTURE_RED_SIZE:
+            case GL_TEXTURE_GREEN_SIZE:
+            case GL_TEXTURE_BLUE_SIZE:
+            case GL_TEXTURE_ALPHA_SIZE:
+            case GL_TEXTURE_DEPTH_SIZE:
+            case GL_TEXTURE_COMPRESSED:
+            case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
+                break; // TODO
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum,
+                    MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GetTexLevelParameteriv_State",
+                                                 "pname is not a valid texture level parameter."));
+                return;
+            }
         }
 
         void GetTexLevelParameterfv_State(GLenum target, GLint level, GLenum pname, GLfloat* params) {
-            // TODO: implement
+            // ======================= Converting ================================
+            TextureUploadTarget textureUploadingTarget = MG_Util::ConvertGLEnumToTextureUploadTarget(target);
+            TextureTarget textureTarget = MG_Util::ConvertTextureUploadTargetToTextureTarget(textureUploadingTarget);
+
+            // ===================== Error Checking ==============================
+            if (!TextureImpl::ValidateTextureUploadTarget(textureUploadingTarget)) return;
+            if (!TextureImpl::ValidateTextureLevelNumber(level)) return;
+            if (!TextureImpl::ValidateTextureLevelWithUploadTarget(textureUploadingTarget, level)) return;
+
+            // ======================= Processing ================================
+            SharedPtr<MG_State::GLState::ITextureObject> textureObject = nullptr;
+            if (TextureImpl::IsProxyTextureTarget(textureUploadingTarget)) {
+                textureObject = TextureImpl::pProxyTextureManager->GetProxyTextureObject(textureUploadingTarget);
+            } else {
+                auto activeUnit =
+                    MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
+                auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
+                textureObject = bindingSlot.GetBoundObject();
+            }
+
+            if (!TextureImpl::ValidateTextureObject(textureObject)) return;
+
+            switch (pname) {
+            case GL_TEXTURE_WIDTH:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.x();
+                }
+                break;
+            case GL_TEXTURE_HEIGHT:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.y();
+                }
+                break;
+            case GL_TEXTURE_DEPTH:
+                if (params) {
+                    *params = textureObject->GetMipmap(level).size.z();
+                }
+                break;
+            case GL_TEXTURE_INTERNAL_FORMAT:
+                if (params) {
+                    *params = MG_Util::ConvertTextureInternalFormatToGLEnum(textureObject->GetFormat());
+                }
+                break;
+            case GL_TEXTURE_RED_TYPE:
+            case GL_TEXTURE_GREEN_TYPE:
+            case GL_TEXTURE_BLUE_TYPE:
+            case GL_TEXTURE_ALPHA_TYPE:
+            case GL_TEXTURE_DEPTH_TYPE:
+            case GL_TEXTURE_RED_SIZE:
+            case GL_TEXTURE_GREEN_SIZE:
+            case GL_TEXTURE_BLUE_SIZE:
+            case GL_TEXTURE_ALPHA_SIZE:
+            case GL_TEXTURE_DEPTH_SIZE:
+            case GL_TEXTURE_COMPRESSED:
+            case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
+                break; // TODO
+            default:
+                MG_State::pGLContext->RecordError(
+                    ErrorCode::InvalidEnum,
+                    MakeShared<GenericErrorInfo>("MG_Impl/GLImpl", "GetTexLevelParameterfv_State",
+                                                 "pname is not a valid texture level parameter."));
+                return;
+            }
         }
 
         void GetTexImage_State(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels) {

MobileGL/MG_Impl/GLImpl/Texture/ProxyTexture.cpp

@@ -0,0 +1,41 @@
+#include "ProxyTexture.h"
+#include "MG_State/GLState/TextureState/TextureObject.h"
+#include "MG_Util/Types.h"
+
+namespace MobileGL::MG_Impl::GLImpl {
+    namespace TextureImpl {
+        ProxyTextureManager* pProxyTextureManager;
+
+        Bool IsProxyTextureTarget(TextureUploadTarget target) {
+            switch (target) {
+            case TextureUploadTarget::ProxyCubeMap:
+            case TextureUploadTarget::ProxyTexture1DArray:
+            case TextureUploadTarget::ProxyTexture2D:
+            case TextureUploadTarget::ProxyTexture2DMultisample:
+            case TextureUploadTarget::ProxyTextureRectangle:
+                return true;
+            default:
+                return false;
+            }
+        }
+
+        SharedPtr<MG_State::GLState::ITextureObject> ProxyTextureManager::CreateOrReplaceProxyTextureObject(
+            TextureUploadTarget target) {
+            auto it = m_proxyTexturesMap.find(target);
+            if (it != m_proxyTexturesMap.end()) {
+                m_proxyTexturesMap.erase(it);
+            }
+            m_proxyTexturesMap[target] = MakeShared<MG_State::GLState::TextureObject2D>();
+            return m_proxyTexturesMap[target];
+        }
+
+        SharedPtr<MG_State::GLState::ITextureObject> ProxyTextureManager::GetProxyTextureObject(
+            TextureUploadTarget target) {
+            auto it = m_proxyTexturesMap.find(target);
+            if (it != m_proxyTexturesMap.end()) {
+                return it->second;
+            }
+            return nullptr;
+        }
+    } // namespace TextureImpl
+} // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/GLImpl/Texture/ProxyTexture.h

@@ -0,0 +1,20 @@
+#pragma once
+#include <Includes.h>
+#include <MG_State/GLState/Core.h>
+
+namespace MobileGL::MG_Impl::GLImpl {
+    namespace TextureImpl {
+        Bool IsProxyTextureTarget(TextureUploadTarget target);
+
+        class ProxyTextureManager {
+        public:
+            SharedPtr<MG_State::GLState::ITextureObject> CreateOrReplaceProxyTextureObject(TextureUploadTarget target);
+            SharedPtr<MG_State::GLState::ITextureObject> GetProxyTextureObject(TextureUploadTarget target);
+
+        private:
+            UnorderedMap<TextureUploadTarget, SharedPtr<MG_State::GLState::ITextureObject>> m_proxyTexturesMap;
+        };
+
+        extern ProxyTextureManager* pProxyTextureManager;
+    } // namespace TextureImpl
+} // namespace MobileGL::MG_Impl::GLImpl

MobileGL/MG_Impl/Init.cpp

@@ -0,0 +1,30 @@
+#include "Init.h"
+#include "GLImpl/Texture/ProxyTexture.h"
+#include "GLImpl/Framebuffer/GL_Framebuffer.h"
+
+namespace MobileGL {
+    namespace MG_Impl {
+        void Init() {
+            MGLOG_D("Initializing MobileGL Implementation...");
+            GLImpl::TextureImpl::pProxyTextureManager = new GLImpl::TextureImpl::ProxyTextureManager();
+
+            // TODO: get real info in EGL
+            auto fbo0 = MG_State::pGLContext->CreateFramebufferObject(0);
+            auto colorTex = MakeShared<MG_State::GLState::TextureObject2D>();
+            colorTex->SetInternalFormat(TextureInternalFormat::RGBA8);
+            colorTex->SetMipmapLevel({{512, 512, 1}, 0, false, 0, {nullptr, 0}});
+            auto depthTex = MakeShared<MG_State::GLState::TextureObject2D>();
+            depthTex->SetInternalFormat(TextureInternalFormat::Depth32FStencil8);
+            depthTex->SetMipmapLevel({{512, 512, 1}, 0, false, 0, {nullptr, 0}});
+            auto stencilTex = MakeShared<MG_State::GLState::TextureObject2D>();
+            stencilTex->SetInternalFormat(TextureInternalFormat::Depth32FStencil8);
+            stencilTex->SetMipmapLevel({{512, 512, 1}, 0, false, 0, {nullptr, 0}});
+            fbo0->AttachTexture(FramebufferAttachmentType::Color0, colorTex);
+            fbo0->AttachTexture(FramebufferAttachmentType::Depth, depthTex);
+            fbo0->AttachTexture(FramebufferAttachmentType::Depth, depthTex);
+            fbo0->AttachTexture(FramebufferAttachmentType::Stencil, stencilTex);
+            GLImpl::FramebufferImpl::pDefaultFramebufferInfo =
+                new GLImpl::FramebufferImpl::DefaultFramebufferInfo(fbo0, colorTex, depthTex, stencilTex);
+        }
+    } // namespace MG_Impl
+} // namespace MobileGL

MobileGL/MG_Impl/Init.h

@@ -0,0 +1,7 @@
+#include <Includes.h>
+
+namespace MobileGL {
+    namespace MG_Impl {
+        void Init();
+    } // namespace MG_Impl
+} // namespace MobileGL

MobileGL/MG_State/GLState/FramebufferState/FramebufferObject.cpp

@@ -9,9 +9,9 @@ namespace MobileGL {
                 : m_texture(texture), m_textureLevel(level) {}
             FramebufferAttachment::FramebufferAttachment(SharedPtr<RenderbufferObjectStub> renderbuffer)
                 : m_renderbuffer(renderbuffer) {}
-            FramebufferAttachment::FramebufferAttachment(std::nullptr_t)
+            FramebufferAttachment::FramebufferAttachment(Bool IsValid) : m_texture(nullptr), m_renderbuffer(nullptr) {
-                : m_texture(nullptr), m_renderbuffer(nullptr) {}
+                m_isValid = IsValid;
-            FramebufferAttachment::FramebufferAttachment() : m_texture(nullptr), m_renderbuffer(nullptr) {}
+            }
 
             Bool FramebufferAttachment::IsTexture() const {
                 return m_texture != nullptr;
@@ -39,10 +39,13 @@ namespace MobileGL {
 
             Bool FramebufferAttachment::IsComplete() const {
                 if (IsTexture()) {
-                    return m_texture->IsComplete();
+                    Bool complete = m_texture->IsComplete();
+                    return complete;
                 } else if (IsRenderbuffer()) {
                     // TODO
+                    return false;
                 }
+
                 return false;
             }
 
@@ -55,9 +58,13 @@ namespace MobileGL {
                 return {0, 0};
             }
 
+            Bool FramebufferAttachment::IsValid() const {
+                return m_isValid;
+            }
+
             // FramebufferObject
             FramebufferObject::FramebufferObject() {
-                m_attachments.fill(FramebufferAttachment(nullptr));
+                m_attachments.fill(FramebufferAttachment(false));
             }
 
             void FramebufferObject::AttachTexture(FramebufferAttachmentType type, SharedPtr<ITextureObject> texture,
@@ -73,7 +80,7 @@ namespace MobileGL {
             }
 
             void FramebufferObject::Detach(FramebufferAttachmentType type) {
-                m_attachments[static_cast<SizeT>(type)] = FramebufferAttachment(nullptr);
+                m_attachments[static_cast<SizeT>(type)] = FramebufferAttachment(false);
                 m_drawBuffersDirty = true;
             }
 
@@ -86,21 +93,30 @@ namespace MobileGL {
                     return false;
                 }
 
-                int width = -1, height = -1;
+                Int width = -1, height = -1;
-                for (const auto& attachment : m_attachments) {
+                Int validAttachmentCount = 0;
+                for (SizeT i = 0; i < m_attachments.size(); ++i) {
+                    if (!m_attachments[i].IsValid()) continue;
+
+                    ++validAttachmentCount;
+                    const auto& attachment = m_attachments[i];
                     auto attachmentSize = attachment.GetSize();
-                    int w = attachmentSize.x();
+                    Int w = attachmentSize.x();
-                    int h = attachmentSize.y();
+                    Int h = attachmentSize.y();
+
                     if (width == -1) {
                         width = w;
                         height = h;
                     } else if (width != w || height != h) {
                         return false;
                     }
+
                     if (!attachment.IsComplete()) {
                         return false;
                     }
                 }
+
+                if (validAttachmentCount == 0) return false;
                 return true;
             }
 

MobileGL/MG_State/GLState/FramebufferState/FramebufferObject.h

@@ -46,7 +46,6 @@ namespace MobileGL {
         Color31,
         Depth,
         Stencil,
-        DepthStencil,
         FramebufferAttachmentTypeCount,
         Unknown = -1
     };
@@ -60,8 +59,7 @@ namespace MobileGL {
                 // TODO: add Renderbuffer when it is implemented
                 explicit FramebufferAttachment(SharedPtr<MG_State::GLState::ITextureObject> texture, Int level = 0);
                 explicit FramebufferAttachment(SharedPtr<RenderbufferObjectStub> renderbuffer);
-                explicit FramebufferAttachment(std::nullptr_t);
+                explicit FramebufferAttachment(Bool IsValid = true);
-                explicit FramebufferAttachment();
 
                 Bool IsTexture() const;
                 Bool IsRenderbuffer() const;
@@ -71,11 +69,13 @@ namespace MobileGL {
                 Int GetTextureLevel() const;
                 Bool IsComplete() const;
                 IntVec3 GetSize() const;
+                Bool IsValid() const;
 
             private:
                 SharedPtr<MG_State::GLState::ITextureObject> m_texture = nullptr;
                 SharedPtr<RenderbufferObjectStub> m_renderbuffer = nullptr;
                 Int m_textureLevel = 0;
+                Bool m_isValid = true;
             };
 
             class FramebufferObject {

MobileGL/MG_State/GLState/FramebufferState/FramebufferState.cpp

@@ -1,13 +1,18 @@
 #include "FramebufferState.h"
+#include "MG_State/GLState/FramebufferState/FramebufferObject.h"
 
 namespace MobileGL {
     namespace MG_State {
         namespace GLState {
-            FramebufferState::FramebufferState() {}
+            FramebufferState::FramebufferState() {
+                for (SizeT i = 0; i < m_bindingSlots.size(); ++i) {
+                    m_bindingSlots[i] = BindingSlot<FramebufferObject>(static_cast<FramebufferTarget>(i));
+                }
+            }
 
             SharedPtr<FramebufferObject> FramebufferState::GetFramebufferObject(Uint index) {
-                auto it = m_bufferObjects.find(index);
+                auto it = m_framebufferObjects.find(index);
-                if (it != m_bufferObjects.end()) {
+                if (it != m_framebufferObjects.end()) {
                     return it->second;
                 }
                 return nullptr;
@@ -20,8 +25,15 @@ namespace MobileGL {
             }
 
             SharedPtr<FramebufferObject> FramebufferState::CreateFramebufferObject(Uint index) {
+                if (index == 0) {
+                    if (!m_indexGenerator.IsValid(0)) {
+                        m_indexGenerator.Insert(0);
+                    } else {
+                        return nullptr;
+                    }
+                }
                 auto bufferObject = MakeShared<FramebufferObject>();
-                m_bufferObjects[index] = bufferObject;
+                m_framebufferObjects[index] = bufferObject;
                 return bufferObject;
             }
 
@@ -37,14 +49,14 @@ namespace MobileGL {
 
             void FramebufferState::MarkFramebufferObjectForDeletion(Uint index) {
                 if (m_indexGenerator.IsValid(index)) {
-                    auto it = m_bufferObjects.find(index);
+                    auto it = m_framebufferObjects.find(index);
-                    if (it != m_bufferObjects.end()) {
+                    if (it != m_framebufferObjects.end()) {
                         for (SizeT i = 0; i < m_bindingSlots.size(); ++i) {
                             if (m_bindingSlots[i].GetBoundObject() == it->second) {
                                 m_bindingSlots[i].Bind(nullptr);
                             }
                         }
-                        m_bufferObjects.erase(it);
+                        m_framebufferObjects.erase(it);
                     }
                     m_indexGenerator.Delete(index);
                 }
@@ -55,7 +67,7 @@ namespace MobileGL {
             }
 
             Bool FramebufferState::ValidateFramebufferObject(Uint index) const {
-                return m_bufferObjects.find(index) != m_bufferObjects.end();
+                return m_framebufferObjects.find(index) != m_framebufferObjects.end();
             }
         } // namespace GLState
     } // namespace MG_State

MobileGL/MG_State/GLState/FramebufferState/FramebufferState.h

@@ -20,7 +20,7 @@ namespace MobileGL {
                 Bool ValidateFramebufferObject(Uint index) const;
 
             private:
-                UnorderedMap<Uint, SharedPtr<FramebufferObject>> m_bufferObjects;
+                UnorderedMap<Uint, SharedPtr<FramebufferObject>> m_framebufferObjects;
                 IndexGenerator<Uint> m_indexGenerator;
                 Array<BindingSlot<FramebufferObject>, static_cast<SizeT>(FramebufferTarget::FramebufferTargetCount)>
                     m_bindingSlots;

MobileGL/MG_State/GLState/ProgramState/ProgramObject.cpp

@@ -1,7 +1,6 @@
 #include "ProgramObject.h"
 #include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
-
+#include <MG_Util/Converters/SPIRVCrossToGL/SpvcTypeConverter.h>
-#include "MG_Util/Converters/SPIRVCrossToGL/SpvcTypeConverter.h"
 
 namespace MobileGL {
     namespace MG_State {
@@ -74,7 +73,9 @@ namespace MobileGL {
                 for (int i = 0; i < m_activeUniformCount; i++) {
                     auto& uniform = m_program->getUniform(i);
                     auto location = uniform.layoutLocation();
+                    if (location >= 0) {
                         m_maxUniformLocation = std::max(m_maxUniformLocation, location);
+                    }
                     m_uniformNameMaxLength = std::max(m_uniformNameMaxLength, (Int)uniform.name.length());
                     m_uniformLocations[uniform.name] = location;
                 }
@@ -88,37 +89,97 @@ namespace MobileGL {
                 for (int i = 0; i < m_activeUniformCount; i++) {
                     auto& uniform = m_program->getUniform(i);
                     auto location = uniform.layoutLocation();
+                    if (location >= 0 && location < (int)m_uniformNames.size()) {
                         m_uniformNames[location] = uniform.name;
                         m_uniformTypes[location] = uniform.glDefineType;
                         m_uniformIsOpaqueType[location] = uniform.getType()->isOpaque();
                         m_uniformArraySizes[location] = uniform.size;
                     }
+                }
 
-                // attributes (pipe in)
                 int inCount = m_program->getNumPipeInputs();
-                m_attribs.resize(inCount);
-                m_attribTypes.resize(inCount);
 
-                // Get locations parsed in program
+                int maxLoc = -1;
-                for (int i = 0; i < inCount; i++) {
+                for (int i = 0; i < inCount; ++i) {
+                    int loc = m_program->getPipeInput(i).layoutLocation();
+                    if (loc >= 0) maxLoc = std::max(maxLoc, loc);
+                }
+
+                if (maxLoc < 0) {
+                    maxLoc = std::max(0, inCount - 1);
+                }
+
+                GLint maxAttribs = 16; // TODO: get from backend
+
+                if (maxLoc >= maxAttribs) {
+                    MGLOG_W("ProgramObject::DoReflection - required attrib location %d >= GL_MAX_VERTEX_ATTRIBS (%d). "
+                            "Clamping.",
+                            maxLoc, maxAttribs);
+                    maxLoc = maxAttribs - 1;
+                }
+
+                m_attribs.resize(maxLoc + 1);
+                m_attribTypes.resize(maxLoc + 1);
+
+                for (int i = 0; i < inCount; ++i) {
                     auto& inVar = m_program->getPipeInput(i);
-                    auto location = inVar.layoutLocation();
+                    int location = inVar.layoutLocation();
                     m_attribInNameMaxLength = std::max(m_attribInNameMaxLength, (Int)inVar.name.length());
+
+                    if (location >= 0 && location < (int)m_attribs.size()) {
                         m_attribs[location] = inVar.name;
                         m_attribTypes[location] = inVar.glDefineType;
+                    } else if (location >= (int)m_attribs.size()) {
+                        MGLOG_W("ProgramObject::DoReflection - attrib location %d >= attribs.size() (%zu). Ignoring.",
+                                location, m_attribs.size());
+                        continue;
+                    } else {
+                        bool placed = false;
+                        for (size_t idx = 0; idx < m_attribs.size(); ++idx) {
+                            if (m_attribs[idx].empty()) {
+                                m_attribs[idx] = inVar.name;
+                                m_attribTypes[idx] = inVar.glDefineType;
+                                placed = true;
+                                break;
                             }
-                // Implement glBindAttribLocation semantics
+                        }
+                        if (!placed && (int)m_attribs.size() < maxAttribs) {
+                            m_attribs.push_back(inVar.name);
+                            m_attribTypes.push_back(inVar.glDefineType);
+                            placed = true;
+                        }
+                        if (!placed) {
+                            MGLOG_W("ProgramObject::DoReflection - cannot place attrib '%s' (no free slot and at max "
+                                    "capacity). Ignoring.",
+                                    inVar.name.c_str());
+                        }
+                    }
+                }
+
+                // Implement glBindAttribLocation semantics (explicit locations set by user)
                 for (auto& [name, location] : m_explicitAttribLocations) {
-                    assert(location < m_attribs.size());
+                    if (location < 0) continue;
+                    if (location >= (int)m_attribs.size()) {
+                        if (location >= maxAttribs) {
+                            MGLOG_W("SetExplicitAttribLocation: requested location %d >= GL_MAX_VERTEX_ATTRIBS (%d). "
+                                    "Ignored for attribute '%s'.",
+                                    location, maxAttribs, name.c_str());
+                            continue;
+                        }
+                        m_attribs.resize(location + 1);
+                        m_attribTypes.resize(location + 1);
+                    }
+
                     if (m_attribs[location] != name) {
                         auto it = std::find(m_attribs.begin(), m_attribs.end(), name);
                         if (it == m_attribs.end()) continue;
-                        std::swap(m_attribs[location], m_attribs[std::distance(m_attribs.begin(), it)]);
+                        auto idx = std::distance(m_attribs.begin(), it);
-                        std::swap(m_attribTypes[location], m_attribTypes[std::distance(m_attribs.begin(), it)]);
+                        std::swap(m_attribs[location], m_attribs[idx]);
+                        std::swap(m_attribTypes[location], m_attribTypes[idx]);
                     }
                 }
 
-                // UBO
+                // ---------- UBO ----------
                 int uboCount = m_program->getNumUniformBlocks();
                 for (int i = 0; i < uboCount; i++) {
                     auto& ubo = m_program->getUniformBlock(i);

MobileGL/MG_State/GLState/ProgramState/ShaderObject.cpp

@@ -1,7 +1,6 @@
 #include "ShaderObject.h"
 #include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
-
+#include <MG_Util/ShaderTranspiler/glslang/UniformTraverser.h>
-#include "MG_Util/ShaderTranspiler/glslang/UniformTraverser.h"
 
 namespace MobileGL {
     namespace MG_State {

MobileGL/MG_State/GLState/TextureState/SamplerObject.h

@@ -33,7 +33,7 @@ namespace MobileGL {
         Unknown = -1
     };
 
-    enum class CompareFunc {
+    enum class SamplerCompareFunc {
         Never,
         Less,
         Equal,
@@ -42,7 +42,7 @@ namespace MobileGL {
         NotEqual,
         GreaterEqual,
         Always,
-        CompareFuncCount,
+        SamplerCompareFuncCount,
         Unknown = -1
     };
 
@@ -55,7 +55,7 @@ namespace MobileGL {
                       m_wrapR(SamplerWrapMode::Repeat), m_minFilter(SamplerFilterMode::Linear),
                       m_magFilter(SamplerFilterMode::Linear), m_mipmapMode(SamplerMipmapMode::None), m_minLod(0.0f),
                       m_maxLod(1000.0f), m_lodBias(0.0f), m_compareMode(SamplerCompareMode::None),
-                      m_compareFunc(CompareFunc::Less) {}
+                      m_compareFunc(SamplerCompareFunc::Less) {}
 
                 void SetWrapS(SamplerWrapMode mode) { m_wrapS = mode; }
                 void SetWrapT(SamplerWrapMode mode) { m_wrapT = mode; }
@@ -71,7 +71,7 @@ namespace MobileGL {
                     m_maxLod = maxLod;
                 }
                 void SetLodBias(Float bias) { m_lodBias = bias; }
-                void SetCompareFunc(CompareFunc func) { m_compareFunc = func; }
+                void SetSamplerCompareFunc(SamplerCompareFunc func) { m_compareFunc = func; }
                 void SetCompareMode(SamplerCompareMode mode) { m_compareMode = mode; }
 
                 SamplerWrapMode GetWrapS() const { return m_wrapS; }
@@ -84,7 +84,7 @@ namespace MobileGL {
                 Float GetMaxLod() const { return m_maxLod; }
                 Float GetLodBias() const { return m_lodBias; }
                 SamplerCompareMode GetCompareMode() const { return m_compareMode; }
-                CompareFunc GetCompareFunc() const { return m_compareFunc; }
+                SamplerCompareFunc GetSamplerCompareFunc() const { return m_compareFunc; }
 
             private:
                 SamplerWrapMode m_wrapS, m_wrapT, m_wrapR;
@@ -93,7 +93,7 @@ namespace MobileGL {
                 Float m_minLod, m_maxLod;
                 Float m_lodBias;
                 SamplerCompareMode m_compareMode;
-                CompareFunc m_compareFunc;
+                SamplerCompareFunc m_compareFunc;
             };
         } // namespace GLState
     } // namespace MG_State

MobileGL/MG_State/GLState/TextureState/TextureObject.cpp

@@ -5,7 +5,9 @@ namespace MobileGL {
     namespace MG_State {
         namespace GLState {
             // TextureObjectBase implementations
-            TextureObjectBase::TextureObjectBase(TextureTarget target) : m_target(target), m_sampler(nullptr) {}
+            TextureObjectBase::TextureObjectBase(TextureTarget target) : m_target(target) {
+                m_sampler = MakeShared<SamplerObject>();
+            }
 
             void TextureObjectBase::SetMipmapLevel(const MipmapLevelInput& level) {
                 SetMipmapImpl(level);
@@ -38,14 +40,18 @@ namespace MobileGL {
                 if (m_internalFormat == TextureInternalFormat::Unknown) {
                     return false;
                 }
+
                 if (m_mipmaps.empty()) {
                     return false;
                 }
-                for (const auto& level : m_mipmaps) {
+
+                for (size_t i = 0; i < m_mipmaps.size(); ++i) {
+                    const auto& level = m_mipmaps[i];
                     if (level.size.x() <= 0 || level.size.y() <= 0 || level.size.z() <= 0) {
                         return false;
                     }
                 }
+
                 // TODO: add more completeness checks based on texture type and mipmap levels
                 return true;
             }

MobileGL/MG_State/GLState/TextureState/TextureObject.h

@@ -1,8 +1,7 @@
 #pragma once
+#include "SamplerObject.h"
 #include <Includes.h>
 #include <MG_Util/Math/VectorTypes.h>
-#include "MG_Util/Types.h"
-#include "SamplerObject.h"
 
 namespace MobileGL {
     enum class TextureTarget {
@@ -197,6 +196,7 @@ namespace MobileGL {
                 }
             };
 
+            // TODO: BaseLevel, MaxLevel, Swizzle
             class ITextureObject {
             public:
                 using TargetEnum = TextureTarget;

MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp

@@ -863,21 +863,45 @@ namespace MobileGL {
     if (libEGL != NULL) {                                                                                              \
         MG_External::EGL::name = (MG_External::EGL::name##_PTR)ProcAddress(libEGL, #name);                             \
     }
-
             void InitEGL() {
-                INIT_EGL_FUNC(eglGetProcAddress)
                 INIT_EGL_FUNC(eglBindAPI)
-                INIT_EGL_FUNC(eglInitialize)
+                INIT_EGL_FUNC(eglBindTexImage)
-                INIT_EGL_FUNC(eglGetDisplay)
-                INIT_EGL_FUNC(eglCreatePbufferSurface)
-                INIT_EGL_FUNC(eglDestroySurface)
-                INIT_EGL_FUNC(eglDestroyContext)
-                INIT_EGL_FUNC(eglMakeCurrent)
                 INIT_EGL_FUNC(eglChooseConfig)
+                INIT_EGL_FUNC(eglCopyBuffers)
                 INIT_EGL_FUNC(eglCreateContext)
-                INIT_EGL_FUNC(eglQueryString)
+                INIT_EGL_FUNC(eglCreatePbufferFromClientBuffer)
-                INIT_EGL_FUNC(eglTerminate)
+                INIT_EGL_FUNC(eglCreatePbufferSurface)
+                INIT_EGL_FUNC(eglCreatePixmapSurface)
+                INIT_EGL_FUNC(eglCreatePlatformWindowSurface)
+                INIT_EGL_FUNC(eglCreateWindowSurface)
+                INIT_EGL_FUNC(eglDestroyContext)
+                INIT_EGL_FUNC(eglDestroySurface)
+                INIT_EGL_FUNC(eglGetConfigAttrib)
+                INIT_EGL_FUNC(eglGetConfigs)
+                INIT_EGL_FUNC(eglGetCurrentContext)
+                INIT_EGL_FUNC(eglGetCurrentDisplay)
+                INIT_EGL_FUNC(eglGetCurrentSurface)
+                INIT_EGL_FUNC(eglGetDisplay)
+                INIT_EGL_FUNC(eglGetPlatformDisplay)
                 INIT_EGL_FUNC(eglGetError)
+                INIT_EGL_FUNC(eglGetProcAddress)
+                INIT_EGL_FUNC(eglInitialize)
+                INIT_EGL_FUNC(eglMakeCurrent)
+                INIT_EGL_FUNC(eglQueryAPI)
+                INIT_EGL_FUNC(eglQueryContext)
+                INIT_EGL_FUNC(eglQueryString)
+                INIT_EGL_FUNC(eglQuerySurface)
+                INIT_EGL_FUNC(eglReleaseTexImage)
+                INIT_EGL_FUNC(eglReleaseThread)
+                INIT_EGL_FUNC(eglSurfaceAttrib)
+                INIT_EGL_FUNC(eglSwapBuffers)
+                INIT_EGL_FUNC(eglSwapBuffersWithDamageEXT)
+                INIT_EGL_FUNC(eglSwapInterval)
+                INIT_EGL_FUNC(eglTerminate)
+                INIT_EGL_FUNC(eglUnlockSurfaceKHR)
+                INIT_EGL_FUNC(eglWaitClient)
+                INIT_EGL_FUNC(eglWaitGL)
+                INIT_EGL_FUNC(eglWaitNative)
 
                 EGLint configAttribs[] = {EGL_RED_SIZE,
                                           8,

MobileGL/MG_Util/Converters/GLToMG/FramebufferEnumConverter.cpp

@@ -26,8 +26,6 @@ namespace MobileGL {
                 return FramebufferAttachmentType::Depth;
             case GL_STENCIL_ATTACHMENT:
                 return FramebufferAttachmentType::Stencil;
-            case GL_DEPTH_STENCIL_ATTACHMENT:
-                return FramebufferAttachmentType::DepthStencil;
             case GL_UNKNOWN_MGL:
             default:
                 return FramebufferAttachmentType::Unknown;

MobileGL/MG_Util/Converters/GLToMG/TextureEnumConverter.cpp

@@ -305,5 +305,76 @@ namespace MobileGL {
             }
         }
 
+        SamplerFilterMode ConvertGLEnumToSamplerFilterMode(GLenum v) {
+            switch (v) {
+            case GL_NEAREST:
+                return SamplerFilterMode::Nearest;
+            case GL_LINEAR:
+                return SamplerFilterMode::Linear;
+            default:
+                return SamplerFilterMode::Unknown;
+            }
+        }
+
+        SamplerMipmapMode ConvertGLEnumToSamplerMipmapMode(GLenum v) {
+            switch (v) {
+            case 0:
+                return SamplerMipmapMode::None; // 无 mipmap 时
+            case GL_NEAREST_MIPMAP_NEAREST:
+                return SamplerMipmapMode::Nearest;
+            default:
+                return SamplerMipmapMode::Unknown;
+            }
+        }
+
+        SamplerWrapMode ConvertGLEnumToSamplerWrapMode(GLenum v) {
+            switch (v) {
+            case GL_CLAMP_TO_EDGE:
+                return SamplerWrapMode::ClampToEdge;
+            case GL_MIRRORED_REPEAT:
+                return SamplerWrapMode::MirroredRepeat;
+            case GL_REPEAT:
+                return SamplerWrapMode::Repeat;
+            case GL_CLAMP_TO_BORDER:
+                return SamplerWrapMode::ClampToBorder;
+            default:
+                return SamplerWrapMode::Unknown;
+            }
+        }
+
+        SamplerCompareMode ConvertGLEnumToSamplerCompareMode(GLenum v) {
+            switch (v) {
+            case 0:
+                return SamplerCompareMode::None; // 无 compare
+            case GL_COMPARE_REF_TO_TEXTURE:
+                return SamplerCompareMode::CompareToTexture;
+            default:
+                return SamplerCompareMode::Unknown;
+            }
+        }
+
+        SamplerCompareFunc ConvertGLEnumToSamplerCompareFunc(GLenum v) {
+            switch (v) {
+            case GL_NEVER:
+                return SamplerCompareFunc::Never;
+            case GL_LESS:
+                return SamplerCompareFunc::Less;
+            case GL_EQUAL:
+                return SamplerCompareFunc::Equal;
+            case GL_LEQUAL:
+                return SamplerCompareFunc::LessEqual;
+            case GL_GREATER:
+                return SamplerCompareFunc::Greater;
+            case GL_NOTEQUAL:
+                return SamplerCompareFunc::NotEqual;
+            case GL_GEQUAL:
+                return SamplerCompareFunc::GreaterEqual;
+            case GL_ALWAYS:
+                return SamplerCompareFunc::Always;
+            default:
+                return SamplerCompareFunc::Unknown;
+            }
+        }
+
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Converters/GLToMG/TextureEnumConverter.h

@@ -9,5 +9,10 @@ namespace MobileGL {
         TextureInternalFormat ConvertGLEnumToTextureInternalFormat(GLenum internalformat);
         TexturePixelDataType ConvertGLEnumToTexturePixelDataType(GLenum type);
         TextureUploadTarget ConvertGLEnumToTextureUploadTarget(GLenum target);
+        SamplerFilterMode ConvertGLEnumToSamplerFilterMode(GLenum value);
+        SamplerMipmapMode ConvertGLEnumToSamplerMipmapMode(GLenum value);
+        SamplerWrapMode ConvertGLEnumToSamplerWrapMode(GLenum value);
+        SamplerCompareMode ConvertGLEnumToSamplerCompareMode(GLenum value);
+        SamplerCompareFunc ConvertGLEnumToSamplerCompareFunc(GLenum value);
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Converters/MGToGL/FramebufferEnumConverter.cpp

@@ -25,8 +25,6 @@ namespace MobileGL {
                 return GL_DEPTH_ATTACHMENT;
             case FramebufferAttachmentType::Stencil:
                 return GL_STENCIL_ATTACHMENT;
-            case FramebufferAttachmentType::DepthStencil:
-                return GL_DEPTH_STENCIL_ATTACHMENT;
             default:
                 return GL_COLOR_ATTACHMENT0;
             }

MobileGL/MG_Util/Converters/MGToGL/TextureEnumConverter.cpp

@@ -305,5 +305,76 @@ namespace MobileGL {
             }
         }
 
+        GLenum ConvertSamplerFilterModeToGLEnum(SamplerFilterMode v) {
+            switch (v) {
+            case SamplerFilterMode::Nearest:
+                return GL_NEAREST;
+            case SamplerFilterMode::Linear:
+                return GL_LINEAR;
+            default:
+                return 0;
+            }
+        }
+
+        GLenum ConvertSamplerMipmapModeToGLEnum(SamplerMipmapMode v) {
+            switch (v) {
+            case SamplerMipmapMode::None:
+                return 0;
+            case SamplerMipmapMode::Nearest:
+                return GL_NEAREST_MIPMAP_NEAREST;
+            default:
+                return 0;
+            }
+        }
+
+        GLenum ConvertSamplerWrapModeToGLEnum(SamplerWrapMode v) {
+            switch (v) {
+            case SamplerWrapMode::ClampToEdge:
+                return GL_CLAMP_TO_EDGE;
+            case SamplerWrapMode::MirroredRepeat:
+                return GL_MIRRORED_REPEAT;
+            case SamplerWrapMode::Repeat:
+                return GL_REPEAT;
+            case SamplerWrapMode::ClampToBorder:
+                return GL_CLAMP_TO_BORDER;
+            default:
+                return 0;
+            }
+        }
+
+        GLenum ConvertSamplerCompareModeToGLEnum(SamplerCompareMode v) {
+            switch (v) {
+            case SamplerCompareMode::None:
+                return 0;
+            case SamplerCompareMode::CompareToTexture:
+                return GL_COMPARE_REF_TO_TEXTURE;
+            default:
+                return 0;
+            }
+        }
+
+        GLenum ConvertSamplerCompareFuncToGLEnum(SamplerCompareFunc v) {
+            switch (v) {
+            case SamplerCompareFunc::Never:
+                return GL_NEVER;
+            case SamplerCompareFunc::Less:
+                return GL_LESS;
+            case SamplerCompareFunc::Equal:
+                return GL_EQUAL;
+            case SamplerCompareFunc::LessEqual:
+                return GL_LEQUAL;
+            case SamplerCompareFunc::Greater:
+                return GL_GREATER;
+            case SamplerCompareFunc::NotEqual:
+                return GL_NOTEQUAL;
+            case SamplerCompareFunc::GreaterEqual:
+                return GL_GEQUAL;
+            case SamplerCompareFunc::Always:
+                return GL_ALWAYS;
+            default:
+                return 0;
+            }
+        }
+
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Converters/MGToGL/TextureEnumConverter.h

@@ -9,5 +9,10 @@ namespace MobileGL {
         GLenum ConvertTextureInternalFormatToGLEnum(TextureInternalFormat internalformat);
         GLenum ConvertTexturePixelDataTypeToGLEnum(TexturePixelDataType type);
         GLenum ConvertTextureUploadTargetToGLEnum(TextureUploadTarget target);
+        GLenum ConvertSamplerFilterModeToGLEnum(SamplerFilterMode value);
+        GLenum ConvertSamplerMipmapModeToGLEnum(SamplerMipmapMode value);
+        GLenum ConvertSamplerWrapModeToGLEnum(SamplerWrapMode value);
+        GLenum ConvertSamplerCompareModeToGLEnum(SamplerCompareMode value);
+        GLenum ConvertSamplerCompareFuncToGLEnum(SamplerCompareFunc value);
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Converters/MGToStr/FramebufferEnumConverter.cpp

@@ -25,8 +25,6 @@ namespace MobileGL {
                 return "Depth";
             case FramebufferAttachmentType::Stencil:
                 return "Stencil";
-            case FramebufferAttachmentType::DepthStencil:
-                return "DepthStencil";
             case FramebufferAttachmentType::Unknown:
             default:
                 return "Unknown";

MobileGL/MG_Util/Converters/MGToStr/TextureEnumConverter.cpp

@@ -300,5 +300,76 @@ namespace MobileGL {
                 return "Unknown";
             }
         }
+
+        String ConvertSamplerFilterModeToString(SamplerFilterMode v) {
+            switch (v) {
+            case SamplerFilterMode::Nearest:
+                return "Nearest";
+            case SamplerFilterMode::Linear:
+                return "Linear";
+            default:
+                return "Unknown";
+            }
+        }
+
+        String ConvertSamplerMipmapModeToString(SamplerMipmapMode v) {
+            switch (v) {
+            case SamplerMipmapMode::None:
+                return "None";
+            case SamplerMipmapMode::Nearest:
+                return "Nearest";
+            default:
+                return "Unknown";
+            }
+        }
+
+        String ConvertSamplerWrapModeToString(SamplerWrapMode v) {
+            switch (v) {
+            case SamplerWrapMode::ClampToEdge:
+                return "ClampToEdge";
+            case SamplerWrapMode::MirroredRepeat:
+                return "MirroredRepeat";
+            case SamplerWrapMode::Repeat:
+                return "Repeat";
+            case SamplerWrapMode::ClampToBorder:
+                return "ClampToBorder";
+            default:
+                return "Unknown";
+            }
+        }
+
+        String ConvertSamplerCompareModeToString(SamplerCompareMode v) {
+            switch (v) {
+            case SamplerCompareMode::None:
+                return "None";
+            case SamplerCompareMode::CompareToTexture:
+                return "CompareToTexture";
+            default:
+                return "Unknown";
+            }
+        }
+
+        String ConvertSamplerCompareFuncToString(SamplerCompareFunc v) {
+            switch (v) {
+            case SamplerCompareFunc::Never:
+                return "Never";
+            case SamplerCompareFunc::Less:
+                return "Less";
+            case SamplerCompareFunc::Equal:
+                return "Equal";
+            case SamplerCompareFunc::LessEqual:
+                return "LessEqual";
+            case SamplerCompareFunc::Greater:
+                return "Greater";
+            case SamplerCompareFunc::NotEqual:
+                return "NotEqual";
+            case SamplerCompareFunc::GreaterEqual:
+                return "GreaterEqual";
+            case SamplerCompareFunc::Always:
+                return "Always";
+            default:
+                return "Unknown";
+            }
+        }
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Converters/MGToStr/TextureEnumConverter.h

@@ -9,5 +9,10 @@ namespace MobileGL {
         String ConvertTextureInternalFormatToString(TextureInternalFormat internalformat);
         String ConvertTexturePixelDataTypeToString(TexturePixelDataType type);
         String ConvertTextureUploadTargetToString(TextureUploadTarget target);
+        String ConvertSamplerFilterModeToString(SamplerFilterMode value);
+        String ConvertSamplerMipmapModeToString(SamplerMipmapMode value);
+        String ConvertSamplerWrapModeToString(SamplerWrapMode value);
+        String ConvertSamplerCompareModeToString(SamplerCompareMode value);
+        String ConvertSamplerCompareFuncToString(SamplerCompareFunc value);
     } // namespace MG_Util
 } // namespace MobileGL

MobileGL/MG_Util/Miscellany/IndexGenerator.h

@@ -61,6 +61,28 @@ namespace MobileGL {
             m_active_count--;
         }
 
+        bool Insert(IndexType index) noexcept {
+            if (IsValid(index)) return false;
+
+            if (index >= m_valid_bits.size()) {
+                m_valid_bits.resize(index + 1, false);
+            }
+
+            auto it = std::find(m_free_list.begin(), m_free_list.end(), index);
+            if (it != m_free_list.end()) {
+                m_free_list.erase(it);
+            }
+
+            m_valid_bits[index] = true;
+            m_active_count++;
+
+            if (index >= m_next_index) {
+                m_next_index = index + 1;
+            }
+
+            return true;
+        }
+
         bool IsValid(IndexType index) const noexcept { return index < m_valid_bits.size() && m_valid_bits[index]; }
 
         SizeT FreeListSize() const noexcept { return m_free_list.size(); }
@@ -74,5 +96,4 @@ namespace MobileGL {
         std::vector<IndexType> m_free_list;
         std::vector<bool> m_valid_bits;
     };
-
 } // namespace MobileGL

MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp

@@ -132,7 +132,7 @@ namespace MobileGL {
                 tshader->setStrings(src, 1);
                 tshader->setInvertY(true);
                 if (attrib.flags & ShaderCompileBits::CompileForOpenGL) {
-                    tshader->setEnvInput(glslang::EShSourceGlsl, lang, glslang::EShClientOpenGL, 450);
+                    tshader->setEnvInput(glslang::EShSourceGlsl, lang, glslang::EShClientVulkan, 450);
                     tshader->setEnvClient(glslang::EShClientOpenGL, glslang::EShTargetOpenGL_450);
                     tshader->setEnvTarget(glslang::EShTargetSpv, glslang::EShTargetSpv_1_5);
                 } else {