]> git.lizzy.rs Git - irrlicht.git/commitdiff
Add a unified cross platform OpenGL core profile binding (#52)
authorhecks <42101236+hecktest@users.noreply.github.com>
Sat, 7 Aug 2021 19:56:00 +0000 (21:56 +0200)
committerGitHub <noreply@github.com>
Sat, 7 Aug 2021 19:56:00 +0000 (21:56 +0200)
16 files changed:
.gitignore
include/IContextManager.h
include/mt_opengl.h [new file with mode: 0755]
scripts/BindingGenerator.lua [new file with mode: 0755]
source/Irrlicht/CEGLManager.cpp
source/Irrlicht/CEGLManager.h
source/Irrlicht/CGLXManager.cpp
source/Irrlicht/CGLXManager.h
source/Irrlicht/CMakeLists.txt
source/Irrlicht/CNSOGLManager.h
source/Irrlicht/CNSOGLManager.mm
source/Irrlicht/COGLES2Driver.cpp
source/Irrlicht/COpenGLDriver.cpp
source/Irrlicht/CWGLManager.cpp
source/Irrlicht/CWGLManager.h
source/Irrlicht/mt_opengl_loader.cpp [new file with mode: 0755]

index d3bb6408263ee91a5e07677c43d524cd64d1e041..901d81ce9078fb19ee4cf674dfbfab55d91e39ea 100644 (file)
@@ -12,3 +12,6 @@ libs/*
 *.exe
 *.dll
 bin/Linux
+scripts/gl2ext.h
+scripts/glcorearb.h
+scripts/glext.h
index 1937190e60276ea5041054622a1b8385a892d86a..207691bcdb4d1eff18756f8278adedc6d639f5bd 100644 (file)
@@ -7,6 +7,7 @@
 \r
 #include "SExposedVideoData.h"\r
 #include "SIrrCreationParameters.h"\r
+#include <string>\r
 \r
 namespace irr\r
 {\r
@@ -48,6 +49,9 @@ namespace video
                        Note that only 1 thread at a time may access an OpenGL context. */\r
                virtual bool activateContext(const SExposedVideoData& videoData, bool restorePrimaryOnZero=false) =0;\r
 \r
+               //! Get the address of any OpenGL procedure (including core procedures).\r
+               virtual void* getProcAddress(const std::string &procName) =0;\r
+\r
         //! Swap buffers.\r
         virtual bool swapBuffers() =0;\r
        };\r
diff --git a/include/mt_opengl.h b/include/mt_opengl.h
new file mode 100755 (executable)
index 0000000..5ddb48c
--- /dev/null
@@ -0,0 +1,3152 @@
+// This code was generated by scripts/BindingGenerator.lua
+// Do not modify it, modify and run the generator instead.
+
+#pragma once
+
+#include <string>
+#include <unordered_set>
+#include "IrrCompileConfig.h"
+#include "irrTypes.h"
+#include "IContextManager.h"
+#include <KHR/khrplatform.h>
+
+#ifndef APIENTRY
+       #define APIENTRY
+#endif
+#ifndef APIENTRYP
+       #define APIENTRYP APIENTRY *
+#endif
+#ifndef GLAPI
+       #define GLAPI extern
+#endif
+
+class OpenGLProcedures {
+private:
+       // ./glcorearb.h
+       typedef void GLvoid;
+       typedef unsigned int GLenum;
+       typedef khronos_float_t GLfloat;
+       typedef int GLint;
+       typedef int GLsizei;
+       typedef unsigned int GLbitfield;
+       typedef double GLdouble;
+       typedef unsigned int GLuint;
+       typedef unsigned char GLboolean;
+       typedef khronos_uint8_t GLubyte;
+       typedef khronos_float_t GLclampf;
+       typedef double GLclampd;
+       typedef khronos_ssize_t GLsizeiptr;
+       typedef khronos_intptr_t GLintptr;
+       typedef char GLchar;
+       typedef khronos_int16_t GLshort;
+       typedef khronos_int8_t GLbyte;
+       typedef khronos_uint16_t GLushort;
+       typedef khronos_uint16_t GLhalf;
+       typedef struct __GLsync *GLsync;
+       typedef khronos_uint64_t GLuint64;
+       typedef khronos_int64_t GLint64;
+       typedef khronos_uint64_t GLuint64EXT;
+       typedef void *GLeglImageOES;
+       typedef khronos_int64_t GLint64EXT;
+
+       typedef void *GLeglClientBufferEXT;
+       // The script will miss this particular typedef thinking it's a PFN,
+       // so we have to paste it in manually. It's the only such type in OpenGL.
+       typedef void (APIENTRY *GLDEBUGPROC)
+               (GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+
+       typedef void (APIENTRYP PFNGLCULLFACEPROC_MT) (GLenum mode);
+       typedef void (APIENTRYP PFNGLFRONTFACEPROC_MT) (GLenum mode);
+       typedef void (APIENTRYP PFNGLHINTPROC_MT) (GLenum target, GLenum mode);
+       typedef void (APIENTRYP PFNGLLINEWIDTHPROC_MT) (GLfloat width);
+       typedef void (APIENTRYP PFNGLPOINTSIZEPROC_MT) (GLfloat size);
+       typedef void (APIENTRYP PFNGLPOLYGONMODEPROC_MT) (GLenum face, GLenum mode);
+       typedef void (APIENTRYP PFNGLSCISSORPROC_MT) (GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERFPROC_MT) (GLenum target, GLenum pname, GLfloat param);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERFVPROC_MT) (GLenum target, GLenum pname, const GLfloat * params);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC_MT) (GLenum target, GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERIVPROC_MT) (GLenum target, GLenum pname, const GLint * params);
+       typedef void (APIENTRYP PFNGLTEXIMAGE1DPROC_MT) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC_MT) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLDRAWBUFFERPROC_MT) (GLenum buf);
+       typedef void (APIENTRYP PFNGLCLEARPROC_MT) (GLbitfield mask);
+       typedef void (APIENTRYP PFNGLCLEARCOLORPROC_MT) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+       typedef void (APIENTRYP PFNGLCLEARSTENCILPROC_MT) (GLint s);
+       typedef void (APIENTRYP PFNGLCLEARDEPTHPROC_MT) (GLdouble depth);
+       typedef void (APIENTRYP PFNGLSTENCILMASKPROC_MT) (GLuint mask);
+       typedef void (APIENTRYP PFNGLCOLORMASKPROC_MT) (GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
+       typedef void (APIENTRYP PFNGLDEPTHMASKPROC_MT) (GLboolean flag);
+       typedef void (APIENTRYP PFNGLDISABLEPROC_MT) (GLenum cap);
+       typedef void (APIENTRYP PFNGLENABLEPROC_MT) (GLenum cap);
+       typedef void (APIENTRYP PFNGLFINISHPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLFLUSHPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLBLENDFUNCPROC_MT) (GLenum sfactor, GLenum dfactor);
+       typedef void (APIENTRYP PFNGLLOGICOPPROC_MT) (GLenum opcode);
+       typedef void (APIENTRYP PFNGLSTENCILFUNCPROC_MT) (GLenum func, GLint ref, GLuint mask);
+       typedef void (APIENTRYP PFNGLSTENCILOPPROC_MT) (GLenum fail, GLenum zfail, GLenum zpass);
+       typedef void (APIENTRYP PFNGLDEPTHFUNCPROC_MT) (GLenum func);
+       typedef void (APIENTRYP PFNGLPIXELSTOREFPROC_MT) (GLenum pname, GLfloat param);
+       typedef void (APIENTRYP PFNGLPIXELSTOREIPROC_MT) (GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLREADBUFFERPROC_MT) (GLenum src);
+       typedef void (APIENTRYP PFNGLREADPIXELSPROC_MT) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void * pixels);
+       typedef void (APIENTRYP PFNGLGETBOOLEANVPROC_MT) (GLenum pname, GLboolean * data);
+       typedef void (APIENTRYP PFNGLGETDOUBLEVPROC_MT) (GLenum pname, GLdouble * data);
+       typedef GLenum (APIENTRYP PFNGLGETERRORPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLGETFLOATVPROC_MT) (GLenum pname, GLfloat * data);
+       typedef void (APIENTRYP PFNGLGETINTEGERVPROC_MT) (GLenum pname, GLint * data);
+       typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGPROC_MT) (GLenum name);
+       typedef void (APIENTRYP PFNGLGETTEXIMAGEPROC_MT) (GLenum target, GLint level, GLenum format, GLenum type, void * pixels);
+       typedef void (APIENTRYP PFNGLGETTEXPARAMETERFVPROC_MT) (GLenum target, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETTEXPARAMETERIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERFVPROC_MT) (GLenum target, GLint level, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETTEXLEVELPARAMETERIVPROC_MT) (GLenum target, GLint level, GLenum pname, GLint * params);
+       typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC_MT) (GLenum cap);
+       typedef void (APIENTRYP PFNGLDEPTHRANGEPROC_MT) (GLdouble n, GLdouble f);
+       typedef void (APIENTRYP PFNGLVIEWPORTPROC_MT) (GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLDRAWARRAYSPROC_MT) (GLenum mode, GLint first, GLsizei count);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices);
+       typedef void (APIENTRYP PFNGLGETPOINTERVPROC_MT) (GLenum pname, void ** params);
+       typedef void (APIENTRYP PFNGLPOLYGONOFFSETPROC_MT) (GLfloat factor, GLfloat units);
+       typedef void (APIENTRYP PFNGLCOPYTEXIMAGE1DPROC_MT) (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
+       typedef void (APIENTRYP PFNGLCOPYTEXIMAGE2DPROC_MT) (GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
+       typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE1DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+       typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE2DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLTEXSUBIMAGE1DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLTEXSUBIMAGE2DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLBINDTEXTUREPROC_MT) (GLenum target, GLuint texture);
+       typedef void (APIENTRYP PFNGLDELETETEXTURESPROC_MT) (GLsizei n, const GLuint * textures);
+       typedef void (APIENTRYP PFNGLGENTEXTURESPROC_MT) (GLsizei n, GLuint * textures);
+       typedef GLboolean (APIENTRYP PFNGLISTEXTUREPROC_MT) (GLuint texture);
+       typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSPROC_MT) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void * indices);
+       typedef void (APIENTRYP PFNGLTEXIMAGE3DPROC_MT) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLTEXSUBIMAGE3DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLCOPYTEXSUBIMAGE3DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC_MT) (GLenum texture);
+       typedef void (APIENTRYP PFNGLSAMPLECOVERAGEPROC_MT) (GLfloat value, GLboolean invert);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE3DPROC_MT) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE2DPROC_MT) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXIMAGE1DPROC_MT) (GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC_MT) (GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXIMAGEPROC_MT) (GLenum target, GLint level, void * img);
+       typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC_MT) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
+       typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSPROC_MT) (GLenum mode, const GLint * first, const GLsizei * count, GLsizei drawcount);
+       typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSPROC_MT) (GLenum mode, const GLsizei * count, GLenum type, const void *const* indices, GLsizei drawcount);
+       typedef void (APIENTRYP PFNGLPOINTPARAMETERFPROC_MT) (GLenum pname, GLfloat param);
+       typedef void (APIENTRYP PFNGLPOINTPARAMETERFVPROC_MT) (GLenum pname, const GLfloat * params);
+       typedef void (APIENTRYP PFNGLPOINTPARAMETERIPROC_MT) (GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLPOINTPARAMETERIVPROC_MT) (GLenum pname, const GLint * params);
+       typedef void (APIENTRYP PFNGLBLENDCOLORPROC_MT) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
+       typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC_MT) (GLenum mode);
+       typedef void (APIENTRYP PFNGLGENQUERIESPROC_MT) (GLsizei n, GLuint * ids);
+       typedef void (APIENTRYP PFNGLDELETEQUERIESPROC_MT) (GLsizei n, const GLuint * ids);
+       typedef GLboolean (APIENTRYP PFNGLISQUERYPROC_MT) (GLuint id);
+       typedef void (APIENTRYP PFNGLBEGINQUERYPROC_MT) (GLenum target, GLuint id);
+       typedef void (APIENTRYP PFNGLENDQUERYPROC_MT) (GLenum target);
+       typedef void (APIENTRYP PFNGLGETQUERYIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETQUERYOBJECTIVPROC_MT) (GLuint id, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETQUERYOBJECTUIVPROC_MT) (GLuint id, GLenum pname, GLuint * params);
+       typedef void (APIENTRYP PFNGLBINDBUFFERPROC_MT) (GLenum target, GLuint buffer);
+       typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC_MT) (GLsizei n, const GLuint * buffers);
+       typedef void (APIENTRYP PFNGLGENBUFFERSPROC_MT) (GLsizei n, GLuint * buffers);
+       typedef GLboolean (APIENTRYP PFNGLISBUFFERPROC_MT) (GLuint buffer);
+       typedef void (APIENTRYP PFNGLBUFFERDATAPROC_MT) (GLenum target, GLsizeiptr size, const void * data, GLenum usage);
+       typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC_MT) (GLenum target, GLintptr offset, GLsizeiptr size, const void * data);
+       typedef void (APIENTRYP PFNGLGETBUFFERSUBDATAPROC_MT) (GLenum target, GLintptr offset, GLsizeiptr size, void * data);
+       typedef void * (APIENTRYP PFNGLMAPBUFFERPROC_MT) (GLenum target, GLenum access);
+       typedef GLboolean (APIENTRYP PFNGLUNMAPBUFFERPROC_MT) (GLenum target);
+       typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETBUFFERPOINTERVPROC_MT) (GLenum target, GLenum pname, void ** params);
+       typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC_MT) (GLenum modeRGB, GLenum modeAlpha);
+       typedef void (APIENTRYP PFNGLDRAWBUFFERSPROC_MT) (GLsizei n, const GLenum * bufs);
+       typedef void (APIENTRYP PFNGLSTENCILOPSEPARATEPROC_MT) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
+       typedef void (APIENTRYP PFNGLSTENCILFUNCSEPARATEPROC_MT) (GLenum face, GLenum func, GLint ref, GLuint mask);
+       typedef void (APIENTRYP PFNGLSTENCILMASKSEPARATEPROC_MT) (GLenum face, GLuint mask);
+       typedef void (APIENTRYP PFNGLATTACHSHADERPROC_MT) (GLuint program, GLuint shader);
+       typedef void (APIENTRYP PFNGLBINDATTRIBLOCATIONPROC_MT) (GLuint program, GLuint index, const GLchar * name);
+       typedef void (APIENTRYP PFNGLCOMPILESHADERPROC_MT) (GLuint shader);
+       typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC_MT) ( void);
+       typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC_MT) (GLenum type);
+       typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC_MT) (GLuint program);
+       typedef void (APIENTRYP PFNGLDELETESHADERPROC_MT) (GLuint shader);
+       typedef void (APIENTRYP PFNGLDETACHSHADERPROC_MT) (GLuint program, GLuint shader);
+       typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC_MT) (GLuint index);
+       typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC_MT) (GLuint index);
+       typedef void (APIENTRYP PFNGLGETACTIVEATTRIBPROC_MT) (GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name);
+       typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMPROC_MT) (GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLint * size, GLenum * type, GLchar * name);
+       typedef void (APIENTRYP PFNGLGETATTACHEDSHADERSPROC_MT) (GLuint program, GLsizei maxCount, GLsizei * count, GLuint * shaders);
+       typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC_MT) (GLuint program, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC_MT) (GLuint program, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC_MT) (GLuint program, GLsizei bufSize, GLsizei * length, GLchar * infoLog);
+       typedef void (APIENTRYP PFNGLGETSHADERIVPROC_MT) (GLuint shader, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC_MT) (GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * infoLog);
+       typedef void (APIENTRYP PFNGLGETSHADERSOURCEPROC_MT) (GLuint shader, GLsizei bufSize, GLsizei * length, GLchar * source);
+       typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC_MT) (GLuint program, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGETUNIFORMFVPROC_MT) (GLuint program, GLint location, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETUNIFORMIVPROC_MT) (GLuint program, GLint location, GLint * params);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBDVPROC_MT) (GLuint index, GLenum pname, GLdouble * params);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBFVPROC_MT) (GLuint index, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC_MT) (GLuint index, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC_MT) (GLuint index, GLenum pname, void ** pointer);
+       typedef GLboolean (APIENTRYP PFNGLISPROGRAMPROC_MT) (GLuint program);
+       typedef GLboolean (APIENTRYP PFNGLISSHADERPROC_MT) (GLuint shader);
+       typedef void (APIENTRYP PFNGLLINKPROGRAMPROC_MT) (GLuint program);
+       typedef void (APIENTRYP PFNGLSHADERSOURCEPROC_MT) (GLuint shader, GLsizei count, const GLchar *const* string, const GLint * length);
+       typedef void (APIENTRYP PFNGLUSEPROGRAMPROC_MT) (GLuint program);
+       typedef void (APIENTRYP PFNGLUNIFORM1FPROC_MT) (GLint location, GLfloat v0);
+       typedef void (APIENTRYP PFNGLUNIFORM2FPROC_MT) (GLint location, GLfloat v0, GLfloat v1);
+       typedef void (APIENTRYP PFNGLUNIFORM3FPROC_MT) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+       typedef void (APIENTRYP PFNGLUNIFORM4FPROC_MT) (GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+       typedef void (APIENTRYP PFNGLUNIFORM1IPROC_MT) (GLint location, GLint v0);
+       typedef void (APIENTRYP PFNGLUNIFORM2IPROC_MT) (GLint location, GLint v0, GLint v1);
+       typedef void (APIENTRYP PFNGLUNIFORM3IPROC_MT) (GLint location, GLint v0, GLint v1, GLint v2);
+       typedef void (APIENTRYP PFNGLUNIFORM4IPROC_MT) (GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+       typedef void (APIENTRYP PFNGLUNIFORM1FVPROC_MT) (GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2FVPROC_MT) (GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3FVPROC_MT) (GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4FVPROC_MT) (GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORM1IVPROC_MT) (GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2IVPROC_MT) (GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3IVPROC_MT) (GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4IVPROC_MT) (GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPROC_MT) (GLuint program);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1DPROC_MT) (GLuint index, GLdouble x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1FPROC_MT) (GLuint index, GLfloat x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1FVPROC_MT) (GLuint index, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1SPROC_MT) (GLuint index, GLshort x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB1SVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2DPROC_MT) (GLuint index, GLdouble x, GLdouble y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2FPROC_MT) (GLuint index, GLfloat x, GLfloat y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2FVPROC_MT) (GLuint index, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2SPROC_MT) (GLuint index, GLshort x, GLshort y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB2SVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3DPROC_MT) (GLuint index, GLdouble x, GLdouble y, GLdouble z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3FPROC_MT) (GLuint index, GLfloat x, GLfloat y, GLfloat z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3FVPROC_MT) (GLuint index, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3SPROC_MT) (GLuint index, GLshort x, GLshort y, GLshort z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB3SVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NBVPROC_MT) (GLuint index, const GLbyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NIVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NSVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBPROC_MT) (GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUBVPROC_MT) (GLuint index, const GLubyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4NUSVPROC_MT) (GLuint index, const GLushort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4BVPROC_MT) (GLuint index, const GLbyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4DPROC_MT) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4FPROC_MT) (GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4FVPROC_MT) (GLuint index, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4IVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4SPROC_MT) (GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4SVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4UBVPROC_MT) (GLuint index, const GLubyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4UIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIB4USVPROC_MT) (GLuint index, const GLushort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC_MT) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void * pointer);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3FVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLCOLORMASKIPROC_MT) (GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a);
+       typedef void (APIENTRYP PFNGLENABLEIPROC_MT) (GLenum target, GLuint index);
+       typedef void (APIENTRYP PFNGLDISABLEIPROC_MT) (GLenum target, GLuint index);
+       typedef GLboolean (APIENTRYP PFNGLISENABLEDIPROC_MT) (GLenum target, GLuint index);
+       typedef void (APIENTRYP PFNGLBEGINTRANSFORMFEEDBACKPROC_MT) (GLenum primitiveMode);
+       typedef void (APIENTRYP PFNGLENDTRANSFORMFEEDBACKPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLBINDBUFFERRANGEPROC_MT) (GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLBINDBUFFERBASEPROC_MT) (GLenum target, GLuint index, GLuint buffer);
+       typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKVARYINGSPROC_MT) (GLuint program, GLsizei count, const GLchar *const* varyings, GLenum bufferMode);
+       typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKVARYINGPROC_MT) (GLuint program, GLuint index, GLsizei bufSize, GLsizei * length, GLsizei * size, GLenum * type, GLchar * name);
+       typedef void (APIENTRYP PFNGLCLAMPCOLORPROC_MT) (GLenum target, GLenum clamp);
+       typedef void (APIENTRYP PFNGLBEGINCONDITIONALRENDERPROC_MT) (GLuint id, GLenum mode);
+       typedef void (APIENTRYP PFNGLENDCONDITIONALRENDERPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBIPOINTERPROC_MT) (GLuint index, GLint size, GLenum type, GLsizei stride, const void * pointer);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIIVPROC_MT) (GLuint index, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIUIVPROC_MT) (GLuint index, GLenum pname, GLuint * params);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IPROC_MT) (GLuint index, GLint x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IPROC_MT) (GLuint index, GLint x, GLint y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IPROC_MT) (GLuint index, GLint x, GLint y, GLint z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IPROC_MT) (GLuint index, GLint x, GLint y, GLint z, GLint w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIPROC_MT) (GLuint index, GLuint x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIPROC_MT) (GLuint index, GLuint x, GLuint y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIPROC_MT) (GLuint index, GLuint x, GLuint y, GLuint z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIPROC_MT) (GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI1IVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI2IVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI3IVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4IVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI1UIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI2UIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI3UIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UIVPROC_MT) (GLuint index, const GLuint * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4BVPROC_MT) (GLuint index, const GLbyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4SVPROC_MT) (GLuint index, const GLshort * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4UBVPROC_MT) (GLuint index, const GLubyte * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBI4USVPROC_MT) (GLuint index, const GLushort * v);
+       typedef void (APIENTRYP PFNGLGETUNIFORMUIVPROC_MT) (GLuint program, GLint location, GLuint * params);
+       typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONPROC_MT) (GLuint program, GLuint color, const GLchar * name);
+       typedef GLint (APIENTRYP PFNGLGETFRAGDATALOCATIONPROC_MT) (GLuint program, const GLchar * name);
+       typedef void (APIENTRYP PFNGLUNIFORM1UIPROC_MT) (GLint location, GLuint v0);
+       typedef void (APIENTRYP PFNGLUNIFORM2UIPROC_MT) (GLint location, GLuint v0, GLuint v1);
+       typedef void (APIENTRYP PFNGLUNIFORM3UIPROC_MT) (GLint location, GLuint v0, GLuint v1, GLuint v2);
+       typedef void (APIENTRYP PFNGLUNIFORM4UIPROC_MT) (GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
+       typedef void (APIENTRYP PFNGLUNIFORM1UIVPROC_MT) (GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2UIVPROC_MT) (GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3UIVPROC_MT) (GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4UIVPROC_MT) (GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERIIVPROC_MT) (GLenum target, GLenum pname, const GLint * params);
+       typedef void (APIENTRYP PFNGLTEXPARAMETERIUIVPROC_MT) (GLenum target, GLenum pname, const GLuint * params);
+       typedef void (APIENTRYP PFNGLGETTEXPARAMETERIIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETTEXPARAMETERIUIVPROC_MT) (GLenum target, GLenum pname, GLuint * params);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERIVPROC_MT) (GLenum buffer, GLint drawbuffer, const GLint * value);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERUIVPROC_MT) (GLenum buffer, GLint drawbuffer, const GLuint * value);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERFVPROC_MT) (GLenum buffer, GLint drawbuffer, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERFIPROC_MT) (GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+       typedef const GLubyte * (APIENTRYP PFNGLGETSTRINGIPROC_MT) (GLenum name, GLuint index);
+       typedef GLboolean (APIENTRYP PFNGLISRENDERBUFFERPROC_MT) (GLuint renderbuffer);
+       typedef void (APIENTRYP PFNGLBINDRENDERBUFFERPROC_MT) (GLenum target, GLuint renderbuffer);
+       typedef void (APIENTRYP PFNGLDELETERENDERBUFFERSPROC_MT) (GLsizei n, const GLuint * renderbuffers);
+       typedef void (APIENTRYP PFNGLGENRENDERBUFFERSPROC_MT) (GLsizei n, GLuint * renderbuffers);
+       typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEPROC_MT) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLGETRENDERBUFFERPARAMETERIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef GLboolean (APIENTRYP PFNGLISFRAMEBUFFERPROC_MT) (GLuint framebuffer);
+       typedef void (APIENTRYP PFNGLBINDFRAMEBUFFERPROC_MT) (GLenum target, GLuint framebuffer);
+       typedef void (APIENTRYP PFNGLDELETEFRAMEBUFFERSPROC_MT) (GLsizei n, const GLuint * framebuffers);
+       typedef void (APIENTRYP PFNGLGENFRAMEBUFFERSPROC_MT) (GLsizei n, GLuint * framebuffers);
+       typedef GLenum (APIENTRYP PFNGLCHECKFRAMEBUFFERSTATUSPROC_MT) (GLenum target);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE1DPROC_MT) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DPROC_MT) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURE3DPROC_MT) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERRENDERBUFFERPROC_MT) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+       typedef void (APIENTRYP PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT) (GLenum target, GLenum attachment, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGENERATEMIPMAPPROC_MT) (GLenum target);
+       typedef void (APIENTRYP PFNGLBLITFRAMEBUFFERPROC_MT) (GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+       typedef void (APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTURELAYERPROC_MT) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
+       typedef void * (APIENTRYP PFNGLMAPBUFFERRANGEPROC_MT) (GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
+       typedef void (APIENTRYP PFNGLFLUSHMAPPEDBUFFERRANGEPROC_MT) (GLenum target, GLintptr offset, GLsizeiptr length);
+       typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC_MT) (GLuint array);
+       typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC_MT) (GLsizei n, const GLuint * arrays);
+       typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC_MT) (GLsizei n, GLuint * arrays);
+       typedef GLboolean (APIENTRYP PFNGLISVERTEXARRAYPROC_MT) (GLuint array);
+       typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDPROC_MT) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices, GLsizei instancecount);
+       typedef void (APIENTRYP PFNGLTEXBUFFERPROC_MT) (GLenum target, GLenum internalformat, GLuint buffer);
+       typedef void (APIENTRYP PFNGLPRIMITIVERESTARTINDEXPROC_MT) (GLuint index);
+       typedef void (APIENTRYP PFNGLCOPYBUFFERSUBDATAPROC_MT) (GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLGETUNIFORMINDICESPROC_MT) (GLuint program, GLsizei uniformCount, const GLchar *const* uniformNames, GLuint * uniformIndices);
+       typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMSIVPROC_MT) (GLuint program, GLsizei uniformCount, const GLuint * uniformIndices, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMNAMEPROC_MT) (GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei * length, GLchar * uniformName);
+       typedef GLuint (APIENTRYP PFNGLGETUNIFORMBLOCKINDEXPROC_MT) (GLuint program, const GLchar * uniformBlockName);
+       typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKIVPROC_MT) (GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC_MT) (GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei * length, GLchar * uniformBlockName);
+       typedef void (APIENTRYP PFNGLUNIFORMBLOCKBINDINGPROC_MT) (GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices, GLint basevertex);
+       typedef void (APIENTRYP PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC_MT) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void * indices, GLint basevertex);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices, GLsizei instancecount, GLint basevertex);
+       typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC_MT) (GLenum mode, const GLsizei * count, GLenum type, const void *const* indices, GLsizei drawcount, const GLint * basevertex);
+       typedef void (APIENTRYP PFNGLPROVOKINGVERTEXPROC_MT) (GLenum mode);
+       typedef GLsync (APIENTRYP PFNGLFENCESYNCPROC_MT) (GLenum condition, GLbitfield flags);
+       typedef GLboolean (APIENTRYP PFNGLISSYNCPROC_MT) (GLsync sync);
+       typedef void (APIENTRYP PFNGLDELETESYNCPROC_MT) (GLsync sync);
+       typedef GLenum (APIENTRYP PFNGLCLIENTWAITSYNCPROC_MT) (GLsync sync, GLbitfield flags, GLuint64 timeout);
+       typedef void (APIENTRYP PFNGLWAITSYNCPROC_MT) (GLsync sync, GLbitfield flags, GLuint64 timeout);
+       typedef void (APIENTRYP PFNGLGETINTEGER64VPROC_MT) (GLenum pname, GLint64 * data);
+       typedef void (APIENTRYP PFNGLGETSYNCIVPROC_MT) (GLsync sync, GLenum pname, GLsizei count, GLsizei * length, GLint * values);
+       typedef void (APIENTRYP PFNGLGETBUFFERPARAMETERI64VPROC_MT) (GLenum target, GLenum pname, GLint64 * params);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREPROC_MT) (GLenum target, GLenum attachment, GLuint texture, GLint level);
+       typedef void (APIENTRYP PFNGLTEXIMAGE2DMULTISAMPLEPROC_MT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLTEXIMAGE3DMULTISAMPLEPROC_MT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLGETMULTISAMPLEFVPROC_MT) (GLenum pname, GLuint index, GLfloat * val);
+       typedef void (APIENTRYP PFNGLSAMPLEMASKIPROC_MT) (GLuint maskNumber, GLbitfield mask);
+       typedef void (APIENTRYP PFNGLBINDFRAGDATALOCATIONINDEXEDPROC_MT) (GLuint program, GLuint colorNumber, GLuint index, const GLchar * name);
+       typedef GLint (APIENTRYP PFNGLGETFRAGDATAINDEXPROC_MT) (GLuint program, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGENSAMPLERSPROC_MT) (GLsizei count, GLuint * samplers);
+       typedef void (APIENTRYP PFNGLDELETESAMPLERSPROC_MT) (GLsizei count, const GLuint * samplers);
+       typedef GLboolean (APIENTRYP PFNGLISSAMPLERPROC_MT) (GLuint sampler);
+       typedef void (APIENTRYP PFNGLBINDSAMPLERPROC_MT) (GLuint unit, GLuint sampler);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIPROC_MT) (GLuint sampler, GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIVPROC_MT) (GLuint sampler, GLenum pname, const GLint * param);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFPROC_MT) (GLuint sampler, GLenum pname, GLfloat param);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERFVPROC_MT) (GLuint sampler, GLenum pname, const GLfloat * param);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIIVPROC_MT) (GLuint sampler, GLenum pname, const GLint * param);
+       typedef void (APIENTRYP PFNGLSAMPLERPARAMETERIUIVPROC_MT) (GLuint sampler, GLenum pname, const GLuint * param);
+       typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIVPROC_MT) (GLuint sampler, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIIVPROC_MT) (GLuint sampler, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERFVPROC_MT) (GLuint sampler, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETSAMPLERPARAMETERIUIVPROC_MT) (GLuint sampler, GLenum pname, GLuint * params);
+       typedef void (APIENTRYP PFNGLQUERYCOUNTERPROC_MT) (GLuint id, GLenum target);
+       typedef void (APIENTRYP PFNGLGETQUERYOBJECTI64VPROC_MT) (GLuint id, GLenum pname, GLint64 * params);
+       typedef void (APIENTRYP PFNGLGETQUERYOBJECTUI64VPROC_MT) (GLuint id, GLenum pname, GLuint64 * params);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBDIVISORPROC_MT) (GLuint index, GLuint divisor);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIPROC_MT) (GLuint index, GLenum type, GLboolean normalized, GLuint value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP1UIVPROC_MT) (GLuint index, GLenum type, GLboolean normalized, const GLuint * value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIPROC_MT) (GLuint index, GLenum type, GLboolean normalized, GLuint value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP2UIVPROC_MT) (GLuint index, GLenum type, GLboolean normalized, const GLuint * value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIPROC_MT) (GLuint index, GLenum type, GLboolean normalized, GLuint value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP3UIVPROC_MT) (GLuint index, GLenum type, GLboolean normalized, const GLuint * value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIPROC_MT) (GLuint index, GLenum type, GLboolean normalized, GLuint value);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBP4UIVPROC_MT) (GLuint index, GLenum type, GLboolean normalized, const GLuint * value);
+       typedef void (APIENTRYP PFNGLMINSAMPLESHADINGPROC_MT) (GLfloat value);
+       typedef void (APIENTRYP PFNGLBLENDEQUATIONIPROC_MT) (GLuint buf, GLenum mode);
+       typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEIPROC_MT) (GLuint buf, GLenum modeRGB, GLenum modeAlpha);
+       typedef void (APIENTRYP PFNGLBLENDFUNCIPROC_MT) (GLuint buf, GLenum src, GLenum dst);
+       typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEIPROC_MT) (GLuint buf, GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
+       typedef void (APIENTRYP PFNGLDRAWARRAYSINDIRECTPROC_MT) (GLenum mode, const void * indirect);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSINDIRECTPROC_MT) (GLenum mode, GLenum type, const void * indirect);
+       typedef void (APIENTRYP PFNGLUNIFORM1DPROC_MT) (GLint location, GLdouble x);
+       typedef void (APIENTRYP PFNGLUNIFORM2DPROC_MT) (GLint location, GLdouble x, GLdouble y);
+       typedef void (APIENTRYP PFNGLUNIFORM3DPROC_MT) (GLint location, GLdouble x, GLdouble y, GLdouble z);
+       typedef void (APIENTRYP PFNGLUNIFORM4DPROC_MT) (GLint location, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+       typedef void (APIENTRYP PFNGLUNIFORM1DVPROC_MT) (GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2DVPROC_MT) (GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3DVPROC_MT) (GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4DVPROC_MT) (GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X3DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX2X4DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X2DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX3X4DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X2DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLUNIFORMMATRIX4X3DVPROC_MT) (GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLGETUNIFORMDVPROC_MT) (GLuint program, GLint location, GLdouble * params);
+       typedef GLint (APIENTRYP PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC_MT) (GLuint program, GLenum shadertype, const GLchar * name);
+       typedef GLuint (APIENTRYP PFNGLGETSUBROUTINEINDEXPROC_MT) (GLuint program, GLenum shadertype, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC_MT) (GLuint program, GLenum shadertype, GLuint index, GLenum pname, GLint * values);
+       typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC_MT) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei * length, GLchar * name);
+       typedef void (APIENTRYP PFNGLGETACTIVESUBROUTINENAMEPROC_MT) (GLuint program, GLenum shadertype, GLuint index, GLsizei bufSize, GLsizei * length, GLchar * name);
+       typedef void (APIENTRYP PFNGLUNIFORMSUBROUTINESUIVPROC_MT) (GLenum shadertype, GLsizei count, const GLuint * indices);
+       typedef void (APIENTRYP PFNGLGETUNIFORMSUBROUTINEUIVPROC_MT) (GLenum shadertype, GLint location, GLuint * params);
+       typedef void (APIENTRYP PFNGLGETPROGRAMSTAGEIVPROC_MT) (GLuint program, GLenum shadertype, GLenum pname, GLint * values);
+       typedef void (APIENTRYP PFNGLPATCHPARAMETERIPROC_MT) (GLenum pname, GLint value);
+       typedef void (APIENTRYP PFNGLPATCHPARAMETERFVPROC_MT) (GLenum pname, const GLfloat * values);
+       typedef void (APIENTRYP PFNGLBINDTRANSFORMFEEDBACKPROC_MT) (GLenum target, GLuint id);
+       typedef void (APIENTRYP PFNGLDELETETRANSFORMFEEDBACKSPROC_MT) (GLsizei n, const GLuint * ids);
+       typedef void (APIENTRYP PFNGLGENTRANSFORMFEEDBACKSPROC_MT) (GLsizei n, GLuint * ids);
+       typedef GLboolean (APIENTRYP PFNGLISTRANSFORMFEEDBACKPROC_MT) (GLuint id);
+       typedef void (APIENTRYP PFNGLPAUSETRANSFORMFEEDBACKPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLRESUMETRANSFORMFEEDBACKPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKPROC_MT) (GLenum mode, GLuint id);
+       typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC_MT) (GLenum mode, GLuint id, GLuint stream);
+       typedef void (APIENTRYP PFNGLBEGINQUERYINDEXEDPROC_MT) (GLenum target, GLuint index, GLuint id);
+       typedef void (APIENTRYP PFNGLENDQUERYINDEXEDPROC_MT) (GLenum target, GLuint index);
+       typedef void (APIENTRYP PFNGLGETQUERYINDEXEDIVPROC_MT) (GLenum target, GLuint index, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLRELEASESHADERCOMPILERPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLSHADERBINARYPROC_MT) (GLsizei count, const GLuint * shaders, GLenum binaryFormat, const void * binary, GLsizei length);
+       typedef void (APIENTRYP PFNGLGETSHADERPRECISIONFORMATPROC_MT) (GLenum shadertype, GLenum precisiontype, GLint * range, GLint * precision);
+       typedef void (APIENTRYP PFNGLDEPTHRANGEFPROC_MT) (GLfloat n, GLfloat f);
+       typedef void (APIENTRYP PFNGLCLEARDEPTHFPROC_MT) (GLfloat d);
+       typedef void (APIENTRYP PFNGLGETPROGRAMBINARYPROC_MT) (GLuint program, GLsizei bufSize, GLsizei * length, GLenum * binaryFormat, void * binary);
+       typedef void (APIENTRYP PFNGLPROGRAMBINARYPROC_MT) (GLuint program, GLenum binaryFormat, const void * binary, GLsizei length);
+       typedef void (APIENTRYP PFNGLPROGRAMPARAMETERIPROC_MT) (GLuint program, GLenum pname, GLint value);
+       typedef void (APIENTRYP PFNGLUSEPROGRAMSTAGESPROC_MT) (GLuint pipeline, GLbitfield stages, GLuint program);
+       typedef void (APIENTRYP PFNGLACTIVESHADERPROGRAMPROC_MT) (GLuint pipeline, GLuint program);
+       typedef GLuint (APIENTRYP PFNGLCREATESHADERPROGRAMVPROC_MT) (GLenum type, GLsizei count, const GLchar *const* strings);
+       typedef void (APIENTRYP PFNGLBINDPROGRAMPIPELINEPROC_MT) (GLuint pipeline);
+       typedef void (APIENTRYP PFNGLDELETEPROGRAMPIPELINESPROC_MT) (GLsizei n, const GLuint * pipelines);
+       typedef void (APIENTRYP PFNGLGENPROGRAMPIPELINESPROC_MT) (GLsizei n, GLuint * pipelines);
+       typedef GLboolean (APIENTRYP PFNGLISPROGRAMPIPELINEPROC_MT) (GLuint pipeline);
+       typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEIVPROC_MT) (GLuint pipeline, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IPROC_MT) (GLuint program, GLint location, GLint v0);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1IVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FPROC_MT) (GLuint program, GLint location, GLfloat v0);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1FVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DPROC_MT) (GLuint program, GLint location, GLdouble v0);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1DVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIPROC_MT) (GLuint program, GLint location, GLuint v0);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UIVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IPROC_MT) (GLuint program, GLint location, GLint v0, GLint v1);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2IVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FPROC_MT) (GLuint program, GLint location, GLfloat v0, GLfloat v1);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2FVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DPROC_MT) (GLuint program, GLint location, GLdouble v0, GLdouble v1);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2DVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIPROC_MT) (GLuint program, GLint location, GLuint v0, GLuint v1);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UIVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IPROC_MT) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3IVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FPROC_MT) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3FVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DPROC_MT) (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3DVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIPROC_MT) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UIVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IPROC_MT) (GLuint program, GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4IVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FPROC_MT) (GLuint program, GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4FVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DPROC_MT) (GLuint program, GLint location, GLdouble v0, GLdouble v1, GLdouble v2, GLdouble v3);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4DVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIPROC_MT) (GLuint program, GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UIVPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC_MT) (GLuint program, GLint location, GLsizei count, GLboolean transpose, const GLdouble * value);
+       typedef void (APIENTRYP PFNGLVALIDATEPROGRAMPIPELINEPROC_MT) (GLuint pipeline);
+       typedef void (APIENTRYP PFNGLGETPROGRAMPIPELINEINFOLOGPROC_MT) (GLuint pipeline, GLsizei bufSize, GLsizei * length, GLchar * infoLog);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DPROC_MT) (GLuint index, GLdouble x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DPROC_MT) (GLuint index, GLdouble x, GLdouble y);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DPROC_MT) (GLuint index, GLdouble x, GLdouble y, GLdouble z);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DPROC_MT) (GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL1DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL2DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL3DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL4DVPROC_MT) (GLuint index, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBLPOINTERPROC_MT) (GLuint index, GLint size, GLenum type, GLsizei stride, const void * pointer);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLDVPROC_MT) (GLuint index, GLenum pname, GLdouble * params);
+       typedef void (APIENTRYP PFNGLVIEWPORTARRAYVPROC_MT) (GLuint first, GLsizei count, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFPROC_MT) (GLuint index, GLfloat x, GLfloat y, GLfloat w, GLfloat h);
+       typedef void (APIENTRYP PFNGLVIEWPORTINDEXEDFVPROC_MT) (GLuint index, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLSCISSORARRAYVPROC_MT) (GLuint first, GLsizei count, const GLint * v);
+       typedef void (APIENTRYP PFNGLSCISSORINDEXEDPROC_MT) (GLuint index, GLint left, GLint bottom, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLSCISSORINDEXEDVPROC_MT) (GLuint index, const GLint * v);
+       typedef void (APIENTRYP PFNGLDEPTHRANGEARRAYVPROC_MT) (GLuint first, GLsizei count, const GLdouble * v);
+       typedef void (APIENTRYP PFNGLDEPTHRANGEINDEXEDPROC_MT) (GLuint index, GLdouble n, GLdouble f);
+       typedef void (APIENTRYP PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC_MT) (GLenum mode, GLint first, GLsizei count, GLsizei instancecount, GLuint baseinstance);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices, GLsizei instancecount, GLuint baseinstance);
+       typedef void (APIENTRYP PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC_MT) (GLenum mode, GLsizei count, GLenum type, const void * indices, GLsizei instancecount, GLint basevertex, GLuint baseinstance);
+       typedef void (APIENTRYP PFNGLGETINTERNALFORMATIVPROC_MT) (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint * params);
+       typedef void (APIENTRYP PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC_MT) (GLuint program, GLuint bufferIndex, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLBINDIMAGETEXTUREPROC_MT) (GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access, GLenum format);
+       typedef void (APIENTRYP PFNGLMEMORYBARRIERPROC_MT) (GLbitfield barriers);
+       typedef void (APIENTRYP PFNGLTEXSTORAGE1DPROC_MT) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width);
+       typedef void (APIENTRYP PFNGLTEXSTORAGE2DPROC_MT) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLTEXSTORAGE3DPROC_MT) (GLenum target, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
+       typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC_MT) (GLenum mode, GLuint id, GLsizei instancecount);
+       typedef void (APIENTRYP PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC_MT) (GLenum mode, GLuint id, GLuint stream, GLsizei instancecount);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERDATAPROC_MT) (GLenum target, GLenum internalformat, GLenum format, GLenum type, const void * data);
+       typedef void (APIENTRYP PFNGLCLEARBUFFERSUBDATAPROC_MT) (GLenum target, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void * data);
+       typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEPROC_MT) (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z);
+       typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEINDIRECTPROC_MT) (GLintptr indirect);
+       typedef void (APIENTRYP PFNGLCOPYIMAGESUBDATAPROC_MT) (GLuint srcName, GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ, GLuint dstName, GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ, GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERPARAMETERIPROC_MT) (GLenum target, GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLGETFRAMEBUFFERPARAMETERIVPROC_MT) (GLenum target, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETINTERNALFORMATI64VPROC_MT) (GLenum target, GLenum internalformat, GLenum pname, GLsizei count, GLint64 * params);
+       typedef void (APIENTRYP PFNGLINVALIDATETEXSUBIMAGEPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth);
+       typedef void (APIENTRYP PFNGLINVALIDATETEXIMAGEPROC_MT) (GLuint texture, GLint level);
+       typedef void (APIENTRYP PFNGLINVALIDATEBUFFERSUBDATAPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr length);
+       typedef void (APIENTRYP PFNGLINVALIDATEBUFFERDATAPROC_MT) (GLuint buffer);
+       typedef void (APIENTRYP PFNGLINVALIDATEFRAMEBUFFERPROC_MT) (GLenum target, GLsizei numAttachments, const GLenum * attachments);
+       typedef void (APIENTRYP PFNGLINVALIDATESUBFRAMEBUFFERPROC_MT) (GLenum target, GLsizei numAttachments, const GLenum * attachments, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTPROC_MT) (GLenum mode, const void * indirect, GLsizei drawcount, GLsizei stride);
+       typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTPROC_MT) (GLenum mode, GLenum type, const void * indirect, GLsizei drawcount, GLsizei stride);
+       typedef void (APIENTRYP PFNGLGETPROGRAMINTERFACEIVPROC_MT) (GLuint program, GLenum programInterface, GLenum pname, GLint * params);
+       typedef GLuint (APIENTRYP PFNGLGETPROGRAMRESOURCEINDEXPROC_MT) (GLuint program, GLenum programInterface, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCENAMEPROC_MT) (GLuint program, GLenum programInterface, GLuint index, GLsizei bufSize, GLsizei * length, GLchar * name);
+       typedef void (APIENTRYP PFNGLGETPROGRAMRESOURCEIVPROC_MT) (GLuint program, GLenum programInterface, GLuint index, GLsizei propCount, const GLenum * props, GLsizei count, GLsizei * length, GLint * params);
+       typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONPROC_MT) (GLuint program, GLenum programInterface, const GLchar * name);
+       typedef GLint (APIENTRYP PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC_MT) (GLuint program, GLenum programInterface, const GLchar * name);
+       typedef void (APIENTRYP PFNGLSHADERSTORAGEBLOCKBINDINGPROC_MT) (GLuint program, GLuint storageBlockIndex, GLuint storageBlockBinding);
+       typedef void (APIENTRYP PFNGLTEXBUFFERRANGEPROC_MT) (GLenum target, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLTEXSTORAGE2DMULTISAMPLEPROC_MT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLTEXSTORAGE3DMULTISAMPLEPROC_MT) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLTEXTUREVIEWPROC_MT) (GLuint texture, GLenum target, GLuint origtexture, GLenum internalformat, GLuint minlevel, GLuint numlevels, GLuint minlayer, GLuint numlayers);
+       typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERPROC_MT) (GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBFORMATPROC_MT) (GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBIFORMATPROC_MT) (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBLFORMATPROC_MT) (GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBBINDINGPROC_MT) (GLuint attribindex, GLuint bindingindex);
+       typedef void (APIENTRYP PFNGLVERTEXBINDINGDIVISORPROC_MT) (GLuint bindingindex, GLuint divisor);
+       typedef void (APIENTRYP PFNGLDEBUGMESSAGECONTROLPROC_MT) (GLenum source, GLenum type, GLenum severity, GLsizei count, const GLuint * ids, GLboolean enabled);
+       typedef void (APIENTRYP PFNGLDEBUGMESSAGEINSERTPROC_MT) (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar * buf);
+       typedef void (APIENTRYP PFNGLDEBUGMESSAGECALLBACKPROC_MT) (GLDEBUGPROC callback, const void * userParam);
+       typedef GLuint (APIENTRYP PFNGLGETDEBUGMESSAGELOGPROC_MT) (GLuint count, GLsizei bufSize, GLenum * sources, GLenum * types, GLuint * ids, GLenum * severities, GLsizei * lengths, GLchar * messageLog);
+       typedef void (APIENTRYP PFNGLPUSHDEBUGGROUPPROC_MT) (GLenum source, GLuint id, GLsizei length, const GLchar * message);
+       typedef void (APIENTRYP PFNGLPOPDEBUGGROUPPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLOBJECTLABELPROC_MT) (GLenum identifier, GLuint name, GLsizei length, const GLchar * label);
+       typedef void (APIENTRYP PFNGLGETOBJECTLABELPROC_MT) (GLenum identifier, GLuint name, GLsizei bufSize, GLsizei * length, GLchar * label);
+       typedef void (APIENTRYP PFNGLOBJECTPTRLABELPROC_MT) (const void * ptr, GLsizei length, const GLchar * label);
+       typedef void (APIENTRYP PFNGLGETOBJECTPTRLABELPROC_MT) (const void * ptr, GLsizei bufSize, GLsizei * length, GLchar * label);
+       typedef void (APIENTRYP PFNGLBUFFERSTORAGEPROC_MT) (GLenum target, GLsizeiptr size, const void * data, GLbitfield flags);
+       typedef void (APIENTRYP PFNGLCLEARTEXIMAGEPROC_MT) (GLuint texture, GLint level, GLenum format, GLenum type, const void * data);
+       typedef void (APIENTRYP PFNGLCLEARTEXSUBIMAGEPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void * data);
+       typedef void (APIENTRYP PFNGLBINDBUFFERSBASEPROC_MT) (GLenum target, GLuint first, GLsizei count, const GLuint * buffers);
+       typedef void (APIENTRYP PFNGLBINDBUFFERSRANGEPROC_MT) (GLenum target, GLuint first, GLsizei count, const GLuint * buffers, const GLintptr * offsets, const GLsizeiptr * sizes);
+       typedef void (APIENTRYP PFNGLBINDTEXTURESPROC_MT) (GLuint first, GLsizei count, const GLuint * textures);
+       typedef void (APIENTRYP PFNGLBINDSAMPLERSPROC_MT) (GLuint first, GLsizei count, const GLuint * samplers);
+       typedef void (APIENTRYP PFNGLBINDIMAGETEXTURESPROC_MT) (GLuint first, GLsizei count, const GLuint * textures);
+       typedef void (APIENTRYP PFNGLBINDVERTEXBUFFERSPROC_MT) (GLuint first, GLsizei count, const GLuint * buffers, const GLintptr * offsets, const GLsizei * strides);
+       typedef void (APIENTRYP PFNGLCLIPCONTROLPROC_MT) (GLenum origin, GLenum depth);
+       typedef void (APIENTRYP PFNGLCREATETRANSFORMFEEDBACKSPROC_MT) (GLsizei n, GLuint * ids);
+       typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC_MT) (GLuint xfb, GLuint index, GLuint buffer);
+       typedef void (APIENTRYP PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC_MT) (GLuint xfb, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKIVPROC_MT) (GLuint xfb, GLenum pname, GLint * param);
+       typedef void (APIENTRYP PFNGLCREATEBUFFERSPROC_MT) (GLsizei n, GLuint * buffers);
+       typedef void (APIENTRYP PFNGLNAMEDBUFFERSTORAGEPROC_MT) (GLuint buffer, GLsizeiptr size, const void * data, GLbitfield flags);
+       typedef void (APIENTRYP PFNGLNAMEDBUFFERDATAPROC_MT) (GLuint buffer, GLsizeiptr size, const void * data, GLenum usage);
+       typedef void (APIENTRYP PFNGLNAMEDBUFFERSUBDATAPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr size, const void * data);
+       typedef void (APIENTRYP PFNGLCOPYNAMEDBUFFERSUBDATAPROC_MT) (GLuint readBuffer, GLuint writeBuffer, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERDATAPROC_MT) (GLuint buffer, GLenum internalformat, GLenum format, GLenum type, const void * data);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDBUFFERSUBDATAPROC_MT) (GLuint buffer, GLenum internalformat, GLintptr offset, GLsizeiptr size, GLenum format, GLenum type, const void * data);
+       typedef void * (APIENTRYP PFNGLMAPNAMEDBUFFERPROC_MT) (GLuint buffer, GLenum access);
+       typedef void * (APIENTRYP PFNGLMAPNAMEDBUFFERRANGEPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr length, GLbitfield access);
+       typedef GLboolean (APIENTRYP PFNGLUNMAPNAMEDBUFFERPROC_MT) (GLuint buffer);
+       typedef void (APIENTRYP PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr length);
+       typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERIVPROC_MT) (GLuint buffer, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPARAMETERI64VPROC_MT) (GLuint buffer, GLenum pname, GLint64 * params);
+       typedef void (APIENTRYP PFNGLGETNAMEDBUFFERPOINTERVPROC_MT) (GLuint buffer, GLenum pname, void ** params);
+       typedef void (APIENTRYP PFNGLGETNAMEDBUFFERSUBDATAPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr size, void * data);
+       typedef void (APIENTRYP PFNGLCREATEFRAMEBUFFERSPROC_MT) (GLsizei n, GLuint * framebuffers);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC_MT) (GLuint framebuffer, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC_MT) (GLuint framebuffer, GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTUREPROC_MT) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC_MT) (GLuint framebuffer, GLenum attachment, GLuint texture, GLint level, GLint layer);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC_MT) (GLuint framebuffer, GLenum buf);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC_MT) (GLuint framebuffer, GLsizei n, const GLenum * bufs);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC_MT) (GLuint framebuffer, GLenum src);
+       typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC_MT) (GLuint framebuffer, GLsizei numAttachments, const GLenum * attachments);
+       typedef void (APIENTRYP PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC_MT) (GLuint framebuffer, GLsizei numAttachments, const GLenum * attachments, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERIVPROC_MT) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLint * value);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC_MT) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLuint * value);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFVPROC_MT) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, const GLfloat * value);
+       typedef void (APIENTRYP PFNGLCLEARNAMEDFRAMEBUFFERFIPROC_MT) (GLuint framebuffer, GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+       typedef void (APIENTRYP PFNGLBLITNAMEDFRAMEBUFFERPROC_MT) (GLuint readFramebuffer, GLuint drawFramebuffer, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+       typedef GLenum (APIENTRYP PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC_MT) (GLuint framebuffer, GLenum target);
+       typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC_MT) (GLuint framebuffer, GLenum pname, GLint * param);
+       typedef void (APIENTRYP PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT) (GLuint framebuffer, GLenum attachment, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLCREATERENDERBUFFERSPROC_MT) (GLsizei n, GLuint * renderbuffers);
+       typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEPROC_MT) (GLuint renderbuffer, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT) (GLuint renderbuffer, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC_MT) (GLuint renderbuffer, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLCREATETEXTURESPROC_MT) (GLenum target, GLsizei n, GLuint * textures);
+       typedef void (APIENTRYP PFNGLTEXTUREBUFFERPROC_MT) (GLuint texture, GLenum internalformat, GLuint buffer);
+       typedef void (APIENTRYP PFNGLTEXTUREBUFFERRANGEPROC_MT) (GLuint texture, GLenum internalformat, GLuint buffer, GLintptr offset, GLsizeiptr size);
+       typedef void (APIENTRYP PFNGLTEXTURESTORAGE1DPROC_MT) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width);
+       typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DPROC_MT) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DPROC_MT) (GLuint texture, GLsizei levels, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth);
+       typedef void (APIENTRYP PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC_MT) (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC_MT) (GLuint texture, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLboolean fixedsamplelocations);
+       typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE1DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE2DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLTEXTURESUBIMAGE3DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, const void * pixels);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLsizei imageSize, const void * data);
+       typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE1DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
+       typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE2DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLCOPYTEXTURESUBIMAGE3DPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFPROC_MT) (GLuint texture, GLenum pname, GLfloat param);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERFVPROC_MT) (GLuint texture, GLenum pname, const GLfloat * param);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIPROC_MT) (GLuint texture, GLenum pname, GLint param);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIIVPROC_MT) (GLuint texture, GLenum pname, const GLint * params);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIUIVPROC_MT) (GLuint texture, GLenum pname, const GLuint * params);
+       typedef void (APIENTRYP PFNGLTEXTUREPARAMETERIVPROC_MT) (GLuint texture, GLenum pname, const GLint * param);
+       typedef void (APIENTRYP PFNGLGENERATETEXTUREMIPMAPPROC_MT) (GLuint texture);
+       typedef void (APIENTRYP PFNGLBINDTEXTUREUNITPROC_MT) (GLuint unit, GLuint texture);
+       typedef void (APIENTRYP PFNGLGETTEXTUREIMAGEPROC_MT) (GLuint texture, GLint level, GLenum format, GLenum type, GLsizei bufSize, void * pixels);
+       typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC_MT) (GLuint texture, GLint level, GLsizei bufSize, void * pixels);
+       typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERFVPROC_MT) (GLuint texture, GLint level, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETTEXTURELEVELPARAMETERIVPROC_MT) (GLuint texture, GLint level, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERFVPROC_MT) (GLuint texture, GLenum pname, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIIVPROC_MT) (GLuint texture, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIUIVPROC_MT) (GLuint texture, GLenum pname, GLuint * params);
+       typedef void (APIENTRYP PFNGLGETTEXTUREPARAMETERIVPROC_MT) (GLuint texture, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLCREATEVERTEXARRAYSPROC_MT) (GLsizei n, GLuint * arrays);
+       typedef void (APIENTRYP PFNGLDISABLEVERTEXARRAYATTRIBPROC_MT) (GLuint vaobj, GLuint index);
+       typedef void (APIENTRYP PFNGLENABLEVERTEXARRAYATTRIBPROC_MT) (GLuint vaobj, GLuint index);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYELEMENTBUFFERPROC_MT) (GLuint vaobj, GLuint buffer);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERPROC_MT) (GLuint vaobj, GLuint bindingindex, GLuint buffer, GLintptr offset, GLsizei stride);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYVERTEXBUFFERSPROC_MT) (GLuint vaobj, GLuint first, GLsizei count, const GLuint * buffers, const GLintptr * offsets, const GLsizei * strides);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBBINDINGPROC_MT) (GLuint vaobj, GLuint attribindex, GLuint bindingindex);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBFORMATPROC_MT) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLboolean normalized, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBIFORMATPROC_MT) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYATTRIBLFORMATPROC_MT) (GLuint vaobj, GLuint attribindex, GLint size, GLenum type, GLuint relativeoffset);
+       typedef void (APIENTRYP PFNGLVERTEXARRAYBINDINGDIVISORPROC_MT) (GLuint vaobj, GLuint bindingindex, GLuint divisor);
+       typedef void (APIENTRYP PFNGLGETVERTEXARRAYIVPROC_MT) (GLuint vaobj, GLenum pname, GLint * param);
+       typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXEDIVPROC_MT) (GLuint vaobj, GLuint index, GLenum pname, GLint * param);
+       typedef void (APIENTRYP PFNGLGETVERTEXARRAYINDEXED64IVPROC_MT) (GLuint vaobj, GLuint index, GLenum pname, GLint64 * param);
+       typedef void (APIENTRYP PFNGLCREATESAMPLERSPROC_MT) (GLsizei n, GLuint * samplers);
+       typedef void (APIENTRYP PFNGLCREATEPROGRAMPIPELINESPROC_MT) (GLsizei n, GLuint * pipelines);
+       typedef void (APIENTRYP PFNGLCREATEQUERIESPROC_MT) (GLenum target, GLsizei n, GLuint * ids);
+       typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTI64VPROC_MT) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+       typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTIVPROC_MT) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+       typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUI64VPROC_MT) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+       typedef void (APIENTRYP PFNGLGETQUERYBUFFEROBJECTUIVPROC_MT) (GLuint id, GLuint buffer, GLenum pname, GLintptr offset);
+       typedef void (APIENTRYP PFNGLMEMORYBARRIERBYREGIONPROC_MT) (GLbitfield barriers);
+       typedef void (APIENTRYP PFNGLGETTEXTURESUBIMAGEPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLenum format, GLenum type, GLsizei bufSize, void * pixels);
+       typedef void (APIENTRYP PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC_MT) (GLuint texture, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLsizei bufSize, void * pixels);
+       typedef GLenum (APIENTRYP PFNGLGETGRAPHICSRESETSTATUSPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLGETNCOMPRESSEDTEXIMAGEPROC_MT) (GLenum target, GLint lod, GLsizei bufSize, void * pixels);
+       typedef void (APIENTRYP PFNGLGETNTEXIMAGEPROC_MT) (GLenum target, GLint level, GLenum format, GLenum type, GLsizei bufSize, void * pixels);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMDVPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLdouble * params);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMFVPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLfloat * params);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMIVPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLint * params);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMUIVPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLuint * params);
+       typedef void (APIENTRYP PFNGLREADNPIXELSPROC_MT) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLsizei bufSize, void * data);
+       typedef void (APIENTRYP PFNGLTEXTUREBARRIERPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLSPECIALIZESHADERPROC_MT) (GLuint shader, const GLchar * pEntryPoint, GLuint numSpecializationConstants, const GLuint * pConstantIndex, const GLuint * pConstantValue);
+       typedef void (APIENTRYP PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT) (GLenum mode, const void * indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+       typedef void (APIENTRYP PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT) (GLenum mode, GLenum type, const void * indirect, GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+       typedef void (APIENTRYP PFNGLPOLYGONOFFSETCLAMPPROC_MT) (GLfloat factor, GLfloat units, GLfloat clamp);
+       typedef void (APIENTRYP PFNGLGENPERFMONITORSEXPROC_MT) (GLsizei n, GLuint * monitors);
+       typedef void (APIENTRYP PFNGLPRIMITIVEBOUNDINGBOXPROC_MT) (GLfloat minX, GLfloat minY, GLfloat minZ, GLfloat minW, GLfloat maxX, GLfloat maxY, GLfloat maxZ, GLfloat maxW);
+       typedef GLuint64 (APIENTRYP PFNGLGETTEXTUREHANDLEPROC_MT) (GLuint texture);
+       typedef GLuint64 (APIENTRYP PFNGLGETTEXTURESAMPLERHANDLEPROC_MT) (GLuint texture, GLuint sampler);
+       typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLERESIDENTPROC_MT) (GLuint64 handle);
+       typedef void (APIENTRYP PFNGLMAKETEXTUREHANDLENONRESIDENTPROC_MT) (GLuint64 handle);
+       typedef GLuint64 (APIENTRYP PFNGLGETIMAGEHANDLEPROC_MT) (GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum format);
+       typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLERESIDENTPROC_MT) (GLuint64 handle, GLenum access);
+       typedef void (APIENTRYP PFNGLMAKEIMAGEHANDLENONRESIDENTPROC_MT) (GLuint64 handle);
+       typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64PROC_MT) (GLint location, GLuint64 value);
+       typedef void (APIENTRYP PFNGLUNIFORMHANDLEUI64VPROC_MT) (GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64PROC_MT) (GLuint program, GLint location, GLuint64 value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORMHANDLEUI64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint64 * values);
+       typedef GLboolean (APIENTRYP PFNGLISTEXTUREHANDLERESIDENTPROC_MT) (GLuint64 handle);
+       typedef GLboolean (APIENTRYP PFNGLISIMAGEHANDLERESIDENTPROC_MT) (GLuint64 handle);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64PROC_MT) (GLuint index, GLuint64 x);
+       typedef void (APIENTRYP PFNGLVERTEXATTRIBL1UI64VPROC_MT) (GLuint index, const GLuint64 * v);
+       typedef void (APIENTRYP PFNGLGETVERTEXATTRIBLUI64VPROC_MT) (GLuint index, GLenum pname, GLuint64 * params);
+       typedef GLsync (APIENTRYP PFNGLCREATESYNCFROMCLEVENTPROC_MT) (struct _cl_context * context, struct _cl_event * event, GLbitfield flags);
+       typedef void (APIENTRYP PFNGLDISPATCHCOMPUTEGROUPSIZEPROC_MT) (GLuint num_groups_x, GLuint num_groups_y, GLuint num_groups_z, GLuint group_size_x, GLuint group_size_y, GLuint group_size_z);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERTEXTUREFACEPROC_MT) (GLenum target, GLenum attachment, GLuint texture, GLint level, GLenum face);
+       typedef void (APIENTRYP PFNGLUNIFORM1I64PROC_MT) (GLint location, GLint64 x);
+       typedef void (APIENTRYP PFNGLUNIFORM2I64PROC_MT) (GLint location, GLint64 x, GLint64 y);
+       typedef void (APIENTRYP PFNGLUNIFORM3I64PROC_MT) (GLint location, GLint64 x, GLint64 y, GLint64 z);
+       typedef void (APIENTRYP PFNGLUNIFORM4I64PROC_MT) (GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w);
+       typedef void (APIENTRYP PFNGLUNIFORM1I64VPROC_MT) (GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2I64VPROC_MT) (GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3I64VPROC_MT) (GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4I64VPROC_MT) (GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM1UI64PROC_MT) (GLint location, GLuint64 x);
+       typedef void (APIENTRYP PFNGLUNIFORM2UI64PROC_MT) (GLint location, GLuint64 x, GLuint64 y);
+       typedef void (APIENTRYP PFNGLUNIFORM3UI64PROC_MT) (GLint location, GLuint64 x, GLuint64 y, GLuint64 z);
+       typedef void (APIENTRYP PFNGLUNIFORM4UI64PROC_MT) (GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w);
+       typedef void (APIENTRYP PFNGLUNIFORM1UI64VPROC_MT) (GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM2UI64VPROC_MT) (GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM3UI64VPROC_MT) (GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLUNIFORM4UI64VPROC_MT) (GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLGETUNIFORMI64VPROC_MT) (GLuint program, GLint location, GLint64 * params);
+       typedef void (APIENTRYP PFNGLGETUNIFORMUI64VPROC_MT) (GLuint program, GLint location, GLuint64 * params);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMI64VPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLint64 * params);
+       typedef void (APIENTRYP PFNGLGETNUNIFORMUI64VPROC_MT) (GLuint program, GLint location, GLsizei bufSize, GLuint64 * params);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64PROC_MT) (GLuint program, GLint location, GLint64 x);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64PROC_MT) (GLuint program, GLint location, GLint64 x, GLint64 y);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64PROC_MT) (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64PROC_MT) (GLuint program, GLint location, GLint64 x, GLint64 y, GLint64 z, GLint64 w);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1I64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2I64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3I64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4I64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64PROC_MT) (GLuint program, GLint location, GLuint64 x);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64PROC_MT) (GLuint program, GLint location, GLuint64 x, GLuint64 y);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64PROC_MT) (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64PROC_MT) (GLuint program, GLint location, GLuint64 x, GLuint64 y, GLuint64 z, GLuint64 w);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM1UI64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM2UI64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM3UI64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLPROGRAMUNIFORM4UI64VPROC_MT) (GLuint program, GLint location, GLsizei count, const GLuint64 * value);
+       typedef void (APIENTRYP PFNGLMAXSHADERCOMPILERTHREADSPROC_MT) (GLuint count);
+       typedef void (APIENTRYP PFNGLFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT) (GLenum target, GLuint start, GLsizei count, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT) (GLuint framebuffer, GLuint start, GLsizei count, const GLfloat * v);
+       typedef void (APIENTRYP PFNGLEVALUATEDEPTHVALUESPROC_MT) ( void);
+       typedef void (APIENTRYP PFNGLNAMEDSTRINGPROC_MT) (GLenum type, GLint namelen, const GLchar * name, GLint stringlen, const GLchar * string);
+       typedef void (APIENTRYP PFNGLDELETENAMEDSTRINGPROC_MT) (GLint namelen, const GLchar * name);
+       typedef void (APIENTRYP PFNGLCOMPILESHADERINCLUDEPROC_MT) (GLuint shader, GLsizei count, const GLchar *const* path, const GLint * length);
+       typedef GLboolean (APIENTRYP PFNGLISNAMEDSTRINGPROC_MT) (GLint namelen, const GLchar * name);
+       typedef void (APIENTRYP PFNGLGETNAMEDSTRINGPROC_MT) (GLint namelen, const GLchar * name, GLsizei bufSize, GLint * stringlen, GLchar * string);
+       typedef void (APIENTRYP PFNGLGETNAMEDSTRINGIVPROC_MT) (GLint namelen, const GLchar * name, GLenum pname, GLint * params);
+       typedef void (APIENTRYP PFNGLBUFFERPAGECOMMITMENTPROC_MT) (GLenum target, GLintptr offset, GLsizeiptr size, GLboolean commit);
+       typedef void (APIENTRYP PFNGLNAMEDBUFFERPAGECOMMITMENTPROC_MT) (GLuint buffer, GLintptr offset, GLsizeiptr size, GLboolean commit);
+       typedef void (APIENTRYP PFNGLTEXPAGECOMMITMENTPROC_MT) (GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLsizei width, GLsizei height, GLsizei depth, GLboolean commit);
+
+       std::unordered_set<std::string> extensions;
+public:
+       // Call this once after creating the context.
+       void LoadAllProcedures(irr::video::IContextManager *cmgr);
+       // Check if an extension is supported.
+       inline bool IsExtensionPresent(const std::string &ext)
+       {
+               return extensions.find(ext) != extensions.end();
+       }
+
+       PFNGLCULLFACEPROC_MT CullFace = NULL;
+       PFNGLFRONTFACEPROC_MT FrontFace = NULL;
+       PFNGLHINTPROC_MT Hint = NULL;
+       PFNGLLINEWIDTHPROC_MT LineWidth = NULL;
+       PFNGLPOINTSIZEPROC_MT PointSize = NULL;
+       PFNGLPOLYGONMODEPROC_MT PolygonMode = NULL;
+       PFNGLSCISSORPROC_MT Scissor = NULL;
+       PFNGLTEXPARAMETERFPROC_MT TexParameterf = NULL;
+       PFNGLTEXPARAMETERFVPROC_MT TexParameterfv = NULL;
+       PFNGLTEXPARAMETERIPROC_MT TexParameteri = NULL;
+       PFNGLTEXPARAMETERIVPROC_MT TexParameteriv = NULL;
+       PFNGLTEXIMAGE1DPROC_MT TexImage1D = NULL;
+       PFNGLTEXIMAGE2DPROC_MT TexImage2D = NULL;
+       PFNGLDRAWBUFFERPROC_MT DrawBuffer = NULL;
+       PFNGLCLEARPROC_MT Clear = NULL;
+       PFNGLCLEARCOLORPROC_MT ClearColor = NULL;
+       PFNGLCLEARSTENCILPROC_MT ClearStencil = NULL;
+       PFNGLCLEARDEPTHPROC_MT ClearDepth = NULL;
+       PFNGLSTENCILMASKPROC_MT StencilMask = NULL;
+       PFNGLCOLORMASKPROC_MT ColorMask = NULL;
+       PFNGLDEPTHMASKPROC_MT DepthMask = NULL;
+       PFNGLDISABLEPROC_MT Disable = NULL;
+       PFNGLENABLEPROC_MT Enable = NULL;
+       PFNGLFINISHPROC_MT Finish = NULL;
+       PFNGLFLUSHPROC_MT Flush = NULL;
+       PFNGLBLENDFUNCPROC_MT BlendFunc = NULL;
+       PFNGLLOGICOPPROC_MT LogicOp = NULL;
+       PFNGLSTENCILFUNCPROC_MT StencilFunc = NULL;
+       PFNGLSTENCILOPPROC_MT StencilOp = NULL;
+       PFNGLDEPTHFUNCPROC_MT DepthFunc = NULL;
+       PFNGLPIXELSTOREFPROC_MT PixelStoref = NULL;
+       PFNGLPIXELSTOREIPROC_MT PixelStorei = NULL;
+       PFNGLREADBUFFERPROC_MT ReadBuffer = NULL;
+       PFNGLREADPIXELSPROC_MT ReadPixels = NULL;
+       PFNGLGETBOOLEANVPROC_MT GetBooleanv = NULL;
+       PFNGLGETDOUBLEVPROC_MT GetDoublev = NULL;
+       PFNGLGETERRORPROC_MT GetError = NULL;
+       PFNGLGETFLOATVPROC_MT GetFloatv = NULL;
+       PFNGLGETINTEGERVPROC_MT GetIntegerv = NULL;
+       PFNGLGETSTRINGPROC_MT GetString = NULL;
+       PFNGLGETTEXIMAGEPROC_MT GetTexImage = NULL;
+       PFNGLGETTEXPARAMETERFVPROC_MT GetTexParameterfv = NULL;
+       PFNGLGETTEXPARAMETERIVPROC_MT GetTexParameteriv = NULL;
+       PFNGLGETTEXLEVELPARAMETERFVPROC_MT GetTexLevelParameterfv = NULL;
+       PFNGLGETTEXLEVELPARAMETERIVPROC_MT GetTexLevelParameteriv = NULL;
+       PFNGLISENABLEDPROC_MT IsEnabled = NULL;
+       PFNGLDEPTHRANGEPROC_MT DepthRange = NULL;
+       PFNGLVIEWPORTPROC_MT Viewport = NULL;
+       PFNGLDRAWARRAYSPROC_MT DrawArrays = NULL;
+       PFNGLDRAWELEMENTSPROC_MT DrawElements = NULL;
+       PFNGLGETPOINTERVPROC_MT GetPointerv = NULL;
+       PFNGLPOLYGONOFFSETPROC_MT PolygonOffset = NULL;
+       PFNGLCOPYTEXIMAGE1DPROC_MT CopyTexImage1D = NULL;
+       PFNGLCOPYTEXIMAGE2DPROC_MT CopyTexImage2D = NULL;
+       PFNGLCOPYTEXSUBIMAGE1DPROC_MT CopyTexSubImage1D = NULL;
+       PFNGLCOPYTEXSUBIMAGE2DPROC_MT CopyTexSubImage2D = NULL;
+       PFNGLTEXSUBIMAGE1DPROC_MT TexSubImage1D = NULL;
+       PFNGLTEXSUBIMAGE2DPROC_MT TexSubImage2D = NULL;
+       PFNGLBINDTEXTUREPROC_MT BindTexture = NULL;
+       PFNGLDELETETEXTURESPROC_MT DeleteTextures = NULL;
+       PFNGLGENTEXTURESPROC_MT GenTextures = NULL;
+       PFNGLISTEXTUREPROC_MT IsTexture = NULL;
+       PFNGLDRAWRANGEELEMENTSPROC_MT DrawRangeElements = NULL;
+       PFNGLTEXIMAGE3DPROC_MT TexImage3D = NULL;
+       PFNGLTEXSUBIMAGE3DPROC_MT TexSubImage3D = NULL;
+       PFNGLCOPYTEXSUBIMAGE3DPROC_MT CopyTexSubImage3D = NULL;
+       PFNGLACTIVETEXTUREPROC_MT ActiveTexture = NULL;
+       PFNGLSAMPLECOVERAGEPROC_MT SampleCoverage = NULL;
+       PFNGLCOMPRESSEDTEXIMAGE3DPROC_MT CompressedTexImage3D = NULL;
+       PFNGLCOMPRESSEDTEXIMAGE2DPROC_MT CompressedTexImage2D = NULL;
+       PFNGLCOMPRESSEDTEXIMAGE1DPROC_MT CompressedTexImage1D = NULL;
+       PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC_MT CompressedTexSubImage3D = NULL;
+       PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC_MT CompressedTexSubImage2D = NULL;
+       PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC_MT CompressedTexSubImage1D = NULL;
+       PFNGLGETCOMPRESSEDTEXIMAGEPROC_MT GetCompressedTexImage = NULL;
+       PFNGLBLENDFUNCSEPARATEPROC_MT BlendFuncSeparate = NULL;
+       PFNGLMULTIDRAWARRAYSPROC_MT MultiDrawArrays = NULL;
+       PFNGLMULTIDRAWELEMENTSPROC_MT MultiDrawElements = NULL;
+       PFNGLPOINTPARAMETERFPROC_MT PointParameterf = NULL;
+       PFNGLPOINTPARAMETERFVPROC_MT PointParameterfv = NULL;
+       PFNGLPOINTPARAMETERIPROC_MT PointParameteri = NULL;
+       PFNGLPOINTPARAMETERIVPROC_MT PointParameteriv = NULL;
+       PFNGLBLENDCOLORPROC_MT BlendColor = NULL;
+       PFNGLBLENDEQUATIONPROC_MT BlendEquation = NULL;
+       PFNGLGENQUERIESPROC_MT GenQueries = NULL;
+       PFNGLDELETEQUERIESPROC_MT DeleteQueries = NULL;
+       PFNGLISQUERYPROC_MT IsQuery = NULL;
+       PFNGLBEGINQUERYPROC_MT BeginQuery = NULL;
+       PFNGLENDQUERYPROC_MT EndQuery = NULL;
+       PFNGLGETQUERYIVPROC_MT GetQueryiv = NULL;
+       PFNGLGETQUERYOBJECTIVPROC_MT GetQueryObjectiv = NULL;
+       PFNGLGETQUERYOBJECTUIVPROC_MT GetQueryObjectuiv = NULL;
+       PFNGLBINDBUFFERPROC_MT BindBuffer = NULL;
+       PFNGLDELETEBUFFERSPROC_MT DeleteBuffers = NULL;
+       PFNGLGENBUFFERSPROC_MT GenBuffers = NULL;
+       PFNGLISBUFFERPROC_MT IsBuffer = NULL;
+       PFNGLBUFFERDATAPROC_MT BufferData = NULL;
+       PFNGLBUFFERSUBDATAPROC_MT BufferSubData = NULL;
+       PFNGLGETBUFFERSUBDATAPROC_MT GetBufferSubData = NULL;
+       PFNGLMAPBUFFERPROC_MT MapBuffer = NULL;
+       PFNGLUNMAPBUFFERPROC_MT UnmapBuffer = NULL;
+       PFNGLGETBUFFERPARAMETERIVPROC_MT GetBufferParameteriv = NULL;
+       PFNGLGETBUFFERPOINTERVPROC_MT GetBufferPointerv = NULL;
+       PFNGLBLENDEQUATIONSEPARATEPROC_MT BlendEquationSeparate = NULL;
+       PFNGLDRAWBUFFERSPROC_MT DrawBuffers = NULL;
+       PFNGLSTENCILOPSEPARATEPROC_MT StencilOpSeparate = NULL;
+       PFNGLSTENCILFUNCSEPARATEPROC_MT StencilFuncSeparate = NULL;
+       PFNGLSTENCILMASKSEPARATEPROC_MT StencilMaskSeparate = NULL;
+       PFNGLATTACHSHADERPROC_MT AttachShader = NULL;
+       PFNGLBINDATTRIBLOCATIONPROC_MT BindAttribLocation = NULL;
+       PFNGLCOMPILESHADERPROC_MT CompileShader = NULL;
+       PFNGLCREATEPROGRAMPROC_MT CreateProgram = NULL;
+       PFNGLCREATESHADERPROC_MT CreateShader = NULL;
+       PFNGLDELETEPROGRAMPROC_MT DeleteProgram = NULL;
+       PFNGLDELETESHADERPROC_MT DeleteShader = NULL;
+       PFNGLDETACHSHADERPROC_MT DetachShader = NULL;
+       PFNGLDISABLEVERTEXATTRIBARRAYPROC_MT DisableVertexAttribArray = NULL;
+       PFNGLENABLEVERTEXATTRIBARRAYPROC_MT EnableVertexAttribArray = NULL;
+       PFNGLGETACTIVEATTRIBPROC_MT GetActiveAttrib = NULL;
+       PFNGLGETACTIVEUNIFORMPROC_MT GetActiveUniform = NULL;
+       PFNGLGETATTACHEDSHADERSPROC_MT GetAttachedShaders = NULL;
+       PFNGLGETATTRIBLOCATIONPROC_MT GetAttribLocation = NULL;
+       PFNGLGETPROGRAMIVPROC_MT GetProgramiv = NULL;
+       PFNGLGETPROGRAMINFOLOGPROC_MT GetProgramInfoLog = NULL;
+       PFNGLGETSHADERIVPROC_MT GetShaderiv = NULL;
+       PFNGLGETSHADERINFOLOGPROC_MT GetShaderInfoLog = NULL;
+       PFNGLGETSHADERSOURCEPROC_MT GetShaderSource = NULL;
+       PFNGLGETUNIFORMLOCATIONPROC_MT GetUniformLocation = NULL;
+       PFNGLGETUNIFORMFVPROC_MT GetUniformfv = NULL;
+       PFNGLGETUNIFORMIVPROC_MT GetUniformiv = NULL;
+       PFNGLGETVERTEXATTRIBDVPROC_MT GetVertexAttribdv = NULL;
+       PFNGLGETVERTEXATTRIBFVPROC_MT GetVertexAttribfv = NULL;
+       PFNGLGETVERTEXATTRIBIVPROC_MT GetVertexAttribiv = NULL;
+       PFNGLGETVERTEXATTRIBPOINTERVPROC_MT GetVertexAttribPointerv = NULL;
+       PFNGLISPROGRAMPROC_MT IsProgram = NULL;
+       PFNGLISSHADERPROC_MT IsShader = NULL;
+       PFNGLLINKPROGRAMPROC_MT LinkProgram = NULL;
+       PFNGLSHADERSOURCEPROC_MT ShaderSource = NULL;
+       PFNGLUSEPROGRAMPROC_MT UseProgram = NULL;
+       PFNGLUNIFORM1FPROC_MT Uniform1f = NULL;
+       PFNGLUNIFORM2FPROC_MT Uniform2f = NULL;
+       PFNGLUNIFORM3FPROC_MT Uniform3f = NULL;
+       PFNGLUNIFORM4FPROC_MT Uniform4f = NULL;
+       PFNGLUNIFORM1IPROC_MT Uniform1i = NULL;
+       PFNGLUNIFORM2IPROC_MT Uniform2i = NULL;
+       PFNGLUNIFORM3IPROC_MT Uniform3i = NULL;
+       PFNGLUNIFORM4IPROC_MT Uniform4i = NULL;
+       PFNGLUNIFORM1FVPROC_MT Uniform1fv = NULL;
+       PFNGLUNIFORM2FVPROC_MT Uniform2fv = NULL;
+       PFNGLUNIFORM3FVPROC_MT Uniform3fv = NULL;
+       PFNGLUNIFORM4FVPROC_MT Uniform4fv = NULL;
+       PFNGLUNIFORM1IVPROC_MT Uniform1iv = NULL;
+       PFNGLUNIFORM2IVPROC_MT Uniform2iv = NULL;
+       PFNGLUNIFORM3IVPROC_MT Uniform3iv = NULL;
+       PFNGLUNIFORM4IVPROC_MT Uniform4iv = NULL;
+       PFNGLUNIFORMMATRIX2FVPROC_MT UniformMatrix2fv = NULL;
+       PFNGLUNIFORMMATRIX3FVPROC_MT UniformMatrix3fv = NULL;
+       PFNGLUNIFORMMATRIX4FVPROC_MT UniformMatrix4fv = NULL;
+       PFNGLVALIDATEPROGRAMPROC_MT ValidateProgram = NULL;
+       PFNGLVERTEXATTRIB1DPROC_MT VertexAttrib1d = NULL;
+       PFNGLVERTEXATTRIB1DVPROC_MT VertexAttrib1dv = NULL;
+       PFNGLVERTEXATTRIB1FPROC_MT VertexAttrib1f = NULL;
+       PFNGLVERTEXATTRIB1FVPROC_MT VertexAttrib1fv = NULL;
+       PFNGLVERTEXATTRIB1SPROC_MT VertexAttrib1s = NULL;
+       PFNGLVERTEXATTRIB1SVPROC_MT VertexAttrib1sv = NULL;
+       PFNGLVERTEXATTRIB2DPROC_MT VertexAttrib2d = NULL;
+       PFNGLVERTEXATTRIB2DVPROC_MT VertexAttrib2dv = NULL;
+       PFNGLVERTEXATTRIB2FPROC_MT VertexAttrib2f = NULL;
+       PFNGLVERTEXATTRIB2FVPROC_MT VertexAttrib2fv = NULL;
+       PFNGLVERTEXATTRIB2SPROC_MT VertexAttrib2s = NULL;
+       PFNGLVERTEXATTRIB2SVPROC_MT VertexAttrib2sv = NULL;
+       PFNGLVERTEXATTRIB3DPROC_MT VertexAttrib3d = NULL;
+       PFNGLVERTEXATTRIB3DVPROC_MT VertexAttrib3dv = NULL;
+       PFNGLVERTEXATTRIB3FPROC_MT VertexAttrib3f = NULL;
+       PFNGLVERTEXATTRIB3FVPROC_MT VertexAttrib3fv = NULL;
+       PFNGLVERTEXATTRIB3SPROC_MT VertexAttrib3s = NULL;
+       PFNGLVERTEXATTRIB3SVPROC_MT VertexAttrib3sv = NULL;
+       PFNGLVERTEXATTRIB4NBVPROC_MT VertexAttrib4Nbv = NULL;
+       PFNGLVERTEXATTRIB4NIVPROC_MT VertexAttrib4Niv = NULL;
+       PFNGLVERTEXATTRIB4NSVPROC_MT VertexAttrib4Nsv = NULL;
+       PFNGLVERTEXATTRIB4NUBPROC_MT VertexAttrib4Nub = NULL;
+       PFNGLVERTEXATTRIB4NUBVPROC_MT VertexAttrib4Nubv = NULL;
+       PFNGLVERTEXATTRIB4NUIVPROC_MT VertexAttrib4Nuiv = NULL;
+       PFNGLVERTEXATTRIB4NUSVPROC_MT VertexAttrib4Nusv = NULL;
+       PFNGLVERTEXATTRIB4BVPROC_MT VertexAttrib4bv = NULL;
+       PFNGLVERTEXATTRIB4DPROC_MT VertexAttrib4d = NULL;
+       PFNGLVERTEXATTRIB4DVPROC_MT VertexAttrib4dv = NULL;
+       PFNGLVERTEXATTRIB4FPROC_MT VertexAttrib4f = NULL;
+       PFNGLVERTEXATTRIB4FVPROC_MT VertexAttrib4fv = NULL;
+       PFNGLVERTEXATTRIB4IVPROC_MT VertexAttrib4iv = NULL;
+       PFNGLVERTEXATTRIB4SPROC_MT VertexAttrib4s = NULL;
+       PFNGLVERTEXATTRIB4SVPROC_MT VertexAttrib4sv = NULL;
+       PFNGLVERTEXATTRIB4UBVPROC_MT VertexAttrib4ubv = NULL;
+       PFNGLVERTEXATTRIB4UIVPROC_MT VertexAttrib4uiv = NULL;
+       PFNGLVERTEXATTRIB4USVPROC_MT VertexAttrib4usv = NULL;
+       PFNGLVERTEXATTRIBPOINTERPROC_MT VertexAttribPointer = NULL;
+       PFNGLUNIFORMMATRIX2X3FVPROC_MT UniformMatrix2x3fv = NULL;
+       PFNGLUNIFORMMATRIX3X2FVPROC_MT UniformMatrix3x2fv = NULL;
+       PFNGLUNIFORMMATRIX2X4FVPROC_MT UniformMatrix2x4fv = NULL;
+       PFNGLUNIFORMMATRIX4X2FVPROC_MT UniformMatrix4x2fv = NULL;
+       PFNGLUNIFORMMATRIX3X4FVPROC_MT UniformMatrix3x4fv = NULL;
+       PFNGLUNIFORMMATRIX4X3FVPROC_MT UniformMatrix4x3fv = NULL;
+       PFNGLCOLORMASKIPROC_MT ColorMaski = NULL;
+       PFNGLENABLEIPROC_MT Enablei = NULL;
+       PFNGLDISABLEIPROC_MT Disablei = NULL;
+       PFNGLISENABLEDIPROC_MT IsEnabledi = NULL;
+       PFNGLBEGINTRANSFORMFEEDBACKPROC_MT BeginTransformFeedback = NULL;
+       PFNGLENDTRANSFORMFEEDBACKPROC_MT EndTransformFeedback = NULL;
+       PFNGLBINDBUFFERRANGEPROC_MT BindBufferRange = NULL;
+       PFNGLBINDBUFFERBASEPROC_MT BindBufferBase = NULL;
+       PFNGLTRANSFORMFEEDBACKVARYINGSPROC_MT TransformFeedbackVaryings = NULL;
+       PFNGLGETTRANSFORMFEEDBACKVARYINGPROC_MT GetTransformFeedbackVarying = NULL;
+       PFNGLCLAMPCOLORPROC_MT ClampColor = NULL;
+       PFNGLBEGINCONDITIONALRENDERPROC_MT BeginConditionalRender = NULL;
+       PFNGLENDCONDITIONALRENDERPROC_MT EndConditionalRender = NULL;
+       PFNGLVERTEXATTRIBIPOINTERPROC_MT VertexAttribIPointer = NULL;
+       PFNGLGETVERTEXATTRIBIIVPROC_MT GetVertexAttribIiv = NULL;
+       PFNGLGETVERTEXATTRIBIUIVPROC_MT GetVertexAttribIuiv = NULL;
+       PFNGLVERTEXATTRIBI1IPROC_MT VertexAttribI1i = NULL;
+       PFNGLVERTEXATTRIBI2IPROC_MT VertexAttribI2i = NULL;
+       PFNGLVERTEXATTRIBI3IPROC_MT VertexAttribI3i = NULL;
+       PFNGLVERTEXATTRIBI4IPROC_MT VertexAttribI4i = NULL;
+       PFNGLVERTEXATTRIBI1UIPROC_MT VertexAttribI1ui = NULL;
+       PFNGLVERTEXATTRIBI2UIPROC_MT VertexAttribI2ui = NULL;
+       PFNGLVERTEXATTRIBI3UIPROC_MT VertexAttribI3ui = NULL;
+       PFNGLVERTEXATTRIBI4UIPROC_MT VertexAttribI4ui = NULL;
+       PFNGLVERTEXATTRIBI1IVPROC_MT VertexAttribI1iv = NULL;
+       PFNGLVERTEXATTRIBI2IVPROC_MT VertexAttribI2iv = NULL;
+       PFNGLVERTEXATTRIBI3IVPROC_MT VertexAttribI3iv = NULL;
+       PFNGLVERTEXATTRIBI4IVPROC_MT VertexAttribI4iv = NULL;
+       PFNGLVERTEXATTRIBI1UIVPROC_MT VertexAttribI1uiv = NULL;
+       PFNGLVERTEXATTRIBI2UIVPROC_MT VertexAttribI2uiv = NULL;
+       PFNGLVERTEXATTRIBI3UIVPROC_MT VertexAttribI3uiv = NULL;
+       PFNGLVERTEXATTRIBI4UIVPROC_MT VertexAttribI4uiv = NULL;
+       PFNGLVERTEXATTRIBI4BVPROC_MT VertexAttribI4bv = NULL;
+       PFNGLVERTEXATTRIBI4SVPROC_MT VertexAttribI4sv = NULL;
+       PFNGLVERTEXATTRIBI4UBVPROC_MT VertexAttribI4ubv = NULL;
+       PFNGLVERTEXATTRIBI4USVPROC_MT VertexAttribI4usv = NULL;
+       PFNGLGETUNIFORMUIVPROC_MT GetUniformuiv = NULL;
+       PFNGLBINDFRAGDATALOCATIONPROC_MT BindFragDataLocation = NULL;
+       PFNGLGETFRAGDATALOCATIONPROC_MT GetFragDataLocation = NULL;
+       PFNGLUNIFORM1UIPROC_MT Uniform1ui = NULL;
+       PFNGLUNIFORM2UIPROC_MT Uniform2ui = NULL;
+       PFNGLUNIFORM3UIPROC_MT Uniform3ui = NULL;
+       PFNGLUNIFORM4UIPROC_MT Uniform4ui = NULL;
+       PFNGLUNIFORM1UIVPROC_MT Uniform1uiv = NULL;
+       PFNGLUNIFORM2UIVPROC_MT Uniform2uiv = NULL;
+       PFNGLUNIFORM3UIVPROC_MT Uniform3uiv = NULL;
+       PFNGLUNIFORM4UIVPROC_MT Uniform4uiv = NULL;
+       PFNGLTEXPARAMETERIIVPROC_MT TexParameterIiv = NULL;
+       PFNGLTEXPARAMETERIUIVPROC_MT TexParameterIuiv = NULL;
+       PFNGLGETTEXPARAMETERIIVPROC_MT GetTexParameterIiv = NULL;
+       PFNGLGETTEXPARAMETERIUIVPROC_MT GetTexParameterIuiv = NULL;
+       PFNGLCLEARBUFFERIVPROC_MT ClearBufferiv = NULL;
+       PFNGLCLEARBUFFERUIVPROC_MT ClearBufferuiv = NULL;
+       PFNGLCLEARBUFFERFVPROC_MT ClearBufferfv = NULL;
+       PFNGLCLEARBUFFERFIPROC_MT ClearBufferfi = NULL;
+       PFNGLGETSTRINGIPROC_MT GetStringi = NULL;
+       PFNGLISRENDERBUFFERPROC_MT IsRenderbuffer = NULL;
+       PFNGLBINDRENDERBUFFERPROC_MT BindRenderbuffer = NULL;
+       PFNGLDELETERENDERBUFFERSPROC_MT DeleteRenderbuffers = NULL;
+       PFNGLGENRENDERBUFFERSPROC_MT GenRenderbuffers = NULL;
+       PFNGLRENDERBUFFERSTORAGEPROC_MT RenderbufferStorage = NULL;
+       PFNGLGETRENDERBUFFERPARAMETERIVPROC_MT GetRenderbufferParameteriv = NULL;
+       PFNGLISFRAMEBUFFERPROC_MT IsFramebuffer = NULL;
+       PFNGLBINDFRAMEBUFFERPROC_MT BindFramebuffer = NULL;
+       PFNGLDELETEFRAMEBUFFERSPROC_MT DeleteFramebuffers = NULL;
+       PFNGLGENFRAMEBUFFERSPROC_MT GenFramebuffers = NULL;
+       PFNGLCHECKFRAMEBUFFERSTATUSPROC_MT CheckFramebufferStatus = NULL;
+       PFNGLFRAMEBUFFERTEXTURE1DPROC_MT FramebufferTexture1D = NULL;
+       PFNGLFRAMEBUFFERTEXTURE2DPROC_MT FramebufferTexture2D = NULL;
+       PFNGLFRAMEBUFFERTEXTURE3DPROC_MT FramebufferTexture3D = NULL;
+       PFNGLFRAMEBUFFERRENDERBUFFERPROC_MT FramebufferRenderbuffer = NULL;
+       PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT GetFramebufferAttachmentParameteriv = NULL;
+       PFNGLGENERATEMIPMAPPROC_MT GenerateMipmap = NULL;
+       PFNGLBLITFRAMEBUFFERPROC_MT BlitFramebuffer = NULL;
+       PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT RenderbufferStorageMultisample = NULL;
+       PFNGLFRAMEBUFFERTEXTURELAYERPROC_MT FramebufferTextureLayer = NULL;
+       PFNGLMAPBUFFERRANGEPROC_MT MapBufferRange = NULL;
+       PFNGLFLUSHMAPPEDBUFFERRANGEPROC_MT FlushMappedBufferRange = NULL;
+       PFNGLBINDVERTEXARRAYPROC_MT BindVertexArray = NULL;
+       PFNGLDELETEVERTEXARRAYSPROC_MT DeleteVertexArrays = NULL;
+       PFNGLGENVERTEXARRAYSPROC_MT GenVertexArrays = NULL;
+       PFNGLISVERTEXARRAYPROC_MT IsVertexArray = NULL;
+       PFNGLDRAWARRAYSINSTANCEDPROC_MT DrawArraysInstanced = NULL;
+       PFNGLDRAWELEMENTSINSTANCEDPROC_MT DrawElementsInstanced = NULL;
+       PFNGLTEXBUFFERPROC_MT TexBuffer = NULL;
+       PFNGLPRIMITIVERESTARTINDEXPROC_MT PrimitiveRestartIndex = NULL;
+       PFNGLCOPYBUFFERSUBDATAPROC_MT CopyBufferSubData = NULL;
+       PFNGLGETUNIFORMINDICESPROC_MT GetUniformIndices = NULL;
+       PFNGLGETACTIVEUNIFORMSIVPROC_MT GetActiveUniformsiv = NULL;
+       PFNGLGETACTIVEUNIFORMNAMEPROC_MT GetActiveUniformName = NULL;
+       PFNGLGETUNIFORMBLOCKINDEXPROC_MT GetUniformBlockIndex = NULL;
+       PFNGLGETACTIVEUNIFORMBLOCKIVPROC_MT GetActiveUniformBlockiv = NULL;
+       PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC_MT GetActiveUniformBlockName = NULL;
+       PFNGLUNIFORMBLOCKBINDINGPROC_MT UniformBlockBinding = NULL;
+       PFNGLDRAWELEMENTSBASEVERTEXPROC_MT DrawElementsBaseVertex = NULL;
+       PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC_MT DrawRangeElementsBaseVertex = NULL;
+       PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC_MT DrawElementsInstancedBaseVertex = NULL;
+       PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC_MT MultiDrawElementsBaseVertex = NULL;
+       PFNGLPROVOKINGVERTEXPROC_MT ProvokingVertex = NULL;
+       PFNGLFENCESYNCPROC_MT FenceSync = NULL;
+       PFNGLISSYNCPROC_MT IsSync = NULL;
+       PFNGLDELETESYNCPROC_MT DeleteSync = NULL;
+       PFNGLCLIENTWAITSYNCPROC_MT ClientWaitSync = NULL;
+       PFNGLWAITSYNCPROC_MT WaitSync = NULL;
+       PFNGLGETINTEGER64VPROC_MT GetInteger64v = NULL;
+       PFNGLGETSYNCIVPROC_MT GetSynciv = NULL;
+       PFNGLGETBUFFERPARAMETERI64VPROC_MT GetBufferParameteri64v = NULL;
+       PFNGLFRAMEBUFFERTEXTUREPROC_MT FramebufferTexture = NULL;
+       PFNGLTEXIMAGE2DMULTISAMPLEPROC_MT TexImage2DMultisample = NULL;
+       PFNGLTEXIMAGE3DMULTISAMPLEPROC_MT TexImage3DMultisample = NULL;
+       PFNGLGETMULTISAMPLEFVPROC_MT GetMultisamplefv = NULL;
+       PFNGLSAMPLEMASKIPROC_MT SampleMaski = NULL;
+       PFNGLBINDFRAGDATALOCATIONINDEXEDPROC_MT BindFragDataLocationIndexed = NULL;
+       PFNGLGETFRAGDATAINDEXPROC_MT GetFragDataIndex = NULL;
+       PFNGLGENSAMPLERSPROC_MT GenSamplers = NULL;
+       PFNGLDELETESAMPLERSPROC_MT DeleteSamplers = NULL;
+       PFNGLISSAMPLERPROC_MT IsSampler = NULL;
+       PFNGLBINDSAMPLERPROC_MT BindSampler = NULL;
+       PFNGLSAMPLERPARAMETERIPROC_MT SamplerParameteri = NULL;
+       PFNGLSAMPLERPARAMETERIVPROC_MT SamplerParameteriv = NULL;
+       PFNGLSAMPLERPARAMETERFPROC_MT SamplerParameterf = NULL;
+       PFNGLSAMPLERPARAMETERFVPROC_MT SamplerParameterfv = NULL;
+       PFNGLSAMPLERPARAMETERIIVPROC_MT SamplerParameterIiv = NULL;
+       PFNGLSAMPLERPARAMETERIUIVPROC_MT SamplerParameterIuiv = NULL;
+       PFNGLGETSAMPLERPARAMETERIVPROC_MT GetSamplerParameteriv = NULL;
+       PFNGLGETSAMPLERPARAMETERIIVPROC_MT GetSamplerParameterIiv = NULL;
+       PFNGLGETSAMPLERPARAMETERFVPROC_MT GetSamplerParameterfv = NULL;
+       PFNGLGETSAMPLERPARAMETERIUIVPROC_MT GetSamplerParameterIuiv = NULL;
+       PFNGLQUERYCOUNTERPROC_MT QueryCounter = NULL;
+       PFNGLGETQUERYOBJECTI64VPROC_MT GetQueryObjecti64v = NULL;
+       PFNGLGETQUERYOBJECTUI64VPROC_MT GetQueryObjectui64v = NULL;
+       PFNGLVERTEXATTRIBDIVISORPROC_MT VertexAttribDivisor = NULL;
+       PFNGLVERTEXATTRIBP1UIPROC_MT VertexAttribP1ui = NULL;
+       PFNGLVERTEXATTRIBP1UIVPROC_MT VertexAttribP1uiv = NULL;
+       PFNGLVERTEXATTRIBP2UIPROC_MT VertexAttribP2ui = NULL;
+       PFNGLVERTEXATTRIBP2UIVPROC_MT VertexAttribP2uiv = NULL;
+       PFNGLVERTEXATTRIBP3UIPROC_MT VertexAttribP3ui = NULL;
+       PFNGLVERTEXATTRIBP3UIVPROC_MT VertexAttribP3uiv = NULL;
+       PFNGLVERTEXATTRIBP4UIPROC_MT VertexAttribP4ui = NULL;
+       PFNGLVERTEXATTRIBP4UIVPROC_MT VertexAttribP4uiv = NULL;
+       PFNGLMINSAMPLESHADINGPROC_MT MinSampleShading = NULL;
+       PFNGLBLENDEQUATIONIPROC_MT BlendEquationi = NULL;
+       PFNGLBLENDEQUATIONSEPARATEIPROC_MT BlendEquationSeparatei = NULL;
+       PFNGLBLENDFUNCIPROC_MT BlendFunci = NULL;
+       PFNGLBLENDFUNCSEPARATEIPROC_MT BlendFuncSeparatei = NULL;
+       PFNGLDRAWARRAYSINDIRECTPROC_MT DrawArraysIndirect = NULL;
+       PFNGLDRAWELEMENTSINDIRECTPROC_MT DrawElementsIndirect = NULL;
+       PFNGLUNIFORM1DPROC_MT Uniform1d = NULL;
+       PFNGLUNIFORM2DPROC_MT Uniform2d = NULL;
+       PFNGLUNIFORM3DPROC_MT Uniform3d = NULL;
+       PFNGLUNIFORM4DPROC_MT Uniform4d = NULL;
+       PFNGLUNIFORM1DVPROC_MT Uniform1dv = NULL;
+       PFNGLUNIFORM2DVPROC_MT Uniform2dv = NULL;
+       PFNGLUNIFORM3DVPROC_MT Uniform3dv = NULL;
+       PFNGLUNIFORM4DVPROC_MT Uniform4dv = NULL;
+       PFNGLUNIFORMMATRIX2DVPROC_MT UniformMatrix2dv = NULL;
+       PFNGLUNIFORMMATRIX3DVPROC_MT UniformMatrix3dv = NULL;
+       PFNGLUNIFORMMATRIX4DVPROC_MT UniformMatrix4dv = NULL;
+       PFNGLUNIFORMMATRIX2X3DVPROC_MT UniformMatrix2x3dv = NULL;
+       PFNGLUNIFORMMATRIX2X4DVPROC_MT UniformMatrix2x4dv = NULL;
+       PFNGLUNIFORMMATRIX3X2DVPROC_MT UniformMatrix3x2dv = NULL;
+       PFNGLUNIFORMMATRIX3X4DVPROC_MT UniformMatrix3x4dv = NULL;
+       PFNGLUNIFORMMATRIX4X2DVPROC_MT UniformMatrix4x2dv = NULL;
+       PFNGLUNIFORMMATRIX4X3DVPROC_MT UniformMatrix4x3dv = NULL;
+       PFNGLGETUNIFORMDVPROC_MT GetUniformdv = NULL;
+       PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC_MT GetSubroutineUniformLocation = NULL;
+       PFNGLGETSUBROUTINEINDEXPROC_MT GetSubroutineIndex = NULL;
+       PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC_MT GetActiveSubroutineUniformiv = NULL;
+       PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC_MT GetActiveSubroutineUniformName = NULL;
+       PFNGLGETACTIVESUBROUTINENAMEPROC_MT GetActiveSubroutineName = NULL;
+       PFNGLUNIFORMSUBROUTINESUIVPROC_MT UniformSubroutinesuiv = NULL;
+       PFNGLGETUNIFORMSUBROUTINEUIVPROC_MT GetUniformSubroutineuiv = NULL;
+       PFNGLGETPROGRAMSTAGEIVPROC_MT GetProgramStageiv = NULL;
+       PFNGLPATCHPARAMETERIPROC_MT PatchParameteri = NULL;
+       PFNGLPATCHPARAMETERFVPROC_MT PatchParameterfv = NULL;
+       PFNGLBINDTRANSFORMFEEDBACKPROC_MT BindTransformFeedback = NULL;
+       PFNGLDELETETRANSFORMFEEDBACKSPROC_MT DeleteTransformFeedbacks = NULL;
+       PFNGLGENTRANSFORMFEEDBACKSPROC_MT GenTransformFeedbacks = NULL;
+       PFNGLISTRANSFORMFEEDBACKPROC_MT IsTransformFeedback = NULL;
+       PFNGLPAUSETRANSFORMFEEDBACKPROC_MT PauseTransformFeedback = NULL;
+       PFNGLRESUMETRANSFORMFEEDBACKPROC_MT ResumeTransformFeedback = NULL;
+       PFNGLDRAWTRANSFORMFEEDBACKPROC_MT DrawTransformFeedback = NULL;
+       PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC_MT DrawTransformFeedbackStream = NULL;
+       PFNGLBEGINQUERYINDEXEDPROC_MT BeginQueryIndexed = NULL;
+       PFNGLENDQUERYINDEXEDPROC_MT EndQueryIndexed = NULL;
+       PFNGLGETQUERYINDEXEDIVPROC_MT GetQueryIndexediv = NULL;
+       PFNGLRELEASESHADERCOMPILERPROC_MT ReleaseShaderCompiler = NULL;
+       PFNGLSHADERBINARYPROC_MT ShaderBinary = NULL;
+       PFNGLGETSHADERPRECISIONFORMATPROC_MT GetShaderPrecisionFormat = NULL;
+       PFNGLDEPTHRANGEFPROC_MT DepthRangef = NULL;
+       PFNGLCLEARDEPTHFPROC_MT ClearDepthf = NULL;
+       PFNGLGETPROGRAMBINARYPROC_MT GetProgramBinary = NULL;
+       PFNGLPROGRAMBINARYPROC_MT ProgramBinary = NULL;
+       PFNGLPROGRAMPARAMETERIPROC_MT ProgramParameteri = NULL;
+       PFNGLUSEPROGRAMSTAGESPROC_MT UseProgramStages = NULL;
+       PFNGLACTIVESHADERPROGRAMPROC_MT ActiveShaderProgram = NULL;
+       PFNGLCREATESHADERPROGRAMVPROC_MT CreateShaderProgramv = NULL;
+       PFNGLBINDPROGRAMPIPELINEPROC_MT BindProgramPipeline = NULL;
+       PFNGLDELETEPROGRAMPIPELINESPROC_MT DeleteProgramPipelines = NULL;
+       PFNGLGENPROGRAMPIPELINESPROC_MT GenProgramPipelines = NULL;
+       PFNGLISPROGRAMPIPELINEPROC_MT IsProgramPipeline = NULL;
+       PFNGLGETPROGRAMPIPELINEIVPROC_MT GetProgramPipelineiv = NULL;
+       PFNGLPROGRAMUNIFORM1IPROC_MT ProgramUniform1i = NULL;
+       PFNGLPROGRAMUNIFORM1IVPROC_MT ProgramUniform1iv = NULL;
+       PFNGLPROGRAMUNIFORM1FPROC_MT ProgramUniform1f = NULL;
+       PFNGLPROGRAMUNIFORM1FVPROC_MT ProgramUniform1fv = NULL;
+       PFNGLPROGRAMUNIFORM1DPROC_MT ProgramUniform1d = NULL;
+       PFNGLPROGRAMUNIFORM1DVPROC_MT ProgramUniform1dv = NULL;
+       PFNGLPROGRAMUNIFORM1UIPROC_MT ProgramUniform1ui = NULL;
+       PFNGLPROGRAMUNIFORM1UIVPROC_MT ProgramUniform1uiv = NULL;
+       PFNGLPROGRAMUNIFORM2IPROC_MT ProgramUniform2i = NULL;
+       PFNGLPROGRAMUNIFORM2IVPROC_MT ProgramUniform2iv = NULL;
+       PFNGLPROGRAMUNIFORM2FPROC_MT ProgramUniform2f = NULL;
+       PFNGLPROGRAMUNIFORM2FVPROC_MT ProgramUniform2fv = NULL;
+       PFNGLPROGRAMUNIFORM2DPROC_MT ProgramUniform2d = NULL;
+       PFNGLPROGRAMUNIFORM2DVPROC_MT ProgramUniform2dv = NULL;
+       PFNGLPROGRAMUNIFORM2UIPROC_MT ProgramUniform2ui = NULL;
+       PFNGLPROGRAMUNIFORM2UIVPROC_MT ProgramUniform2uiv = NULL;
+       PFNGLPROGRAMUNIFORM3IPROC_MT ProgramUniform3i = NULL;
+       PFNGLPROGRAMUNIFORM3IVPROC_MT ProgramUniform3iv = NULL;
+       PFNGLPROGRAMUNIFORM3FPROC_MT ProgramUniform3f = NULL;
+       PFNGLPROGRAMUNIFORM3FVPROC_MT ProgramUniform3fv = NULL;
+       PFNGLPROGRAMUNIFORM3DPROC_MT ProgramUniform3d = NULL;
+       PFNGLPROGRAMUNIFORM3DVPROC_MT ProgramUniform3dv = NULL;
+       PFNGLPROGRAMUNIFORM3UIPROC_MT ProgramUniform3ui = NULL;
+       PFNGLPROGRAMUNIFORM3UIVPROC_MT ProgramUniform3uiv = NULL;
+       PFNGLPROGRAMUNIFORM4IPROC_MT ProgramUniform4i = NULL;
+       PFNGLPROGRAMUNIFORM4IVPROC_MT ProgramUniform4iv = NULL;
+       PFNGLPROGRAMUNIFORM4FPROC_MT ProgramUniform4f = NULL;
+       PFNGLPROGRAMUNIFORM4FVPROC_MT ProgramUniform4fv = NULL;
+       PFNGLPROGRAMUNIFORM4DPROC_MT ProgramUniform4d = NULL;
+       PFNGLPROGRAMUNIFORM4DVPROC_MT ProgramUniform4dv = NULL;
+       PFNGLPROGRAMUNIFORM4UIPROC_MT ProgramUniform4ui = NULL;
+       PFNGLPROGRAMUNIFORM4UIVPROC_MT ProgramUniform4uiv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2FVPROC_MT ProgramUniformMatrix2fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3FVPROC_MT ProgramUniformMatrix3fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4FVPROC_MT ProgramUniformMatrix4fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2DVPROC_MT ProgramUniformMatrix2dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3DVPROC_MT ProgramUniformMatrix3dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4DVPROC_MT ProgramUniformMatrix4dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC_MT ProgramUniformMatrix2x3fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC_MT ProgramUniformMatrix3x2fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC_MT ProgramUniformMatrix2x4fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC_MT ProgramUniformMatrix4x2fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC_MT ProgramUniformMatrix3x4fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC_MT ProgramUniformMatrix4x3fv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC_MT ProgramUniformMatrix2x3dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC_MT ProgramUniformMatrix3x2dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC_MT ProgramUniformMatrix2x4dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC_MT ProgramUniformMatrix4x2dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC_MT ProgramUniformMatrix3x4dv = NULL;
+       PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC_MT ProgramUniformMatrix4x3dv = NULL;
+       PFNGLVALIDATEPROGRAMPIPELINEPROC_MT ValidateProgramPipeline = NULL;
+       PFNGLGETPROGRAMPIPELINEINFOLOGPROC_MT GetProgramPipelineInfoLog = NULL;
+       PFNGLVERTEXATTRIBL1DPROC_MT VertexAttribL1d = NULL;
+       PFNGLVERTEXATTRIBL2DPROC_MT VertexAttribL2d = NULL;
+       PFNGLVERTEXATTRIBL3DPROC_MT VertexAttribL3d = NULL;
+       PFNGLVERTEXATTRIBL4DPROC_MT VertexAttribL4d = NULL;
+       PFNGLVERTEXATTRIBL1DVPROC_MT VertexAttribL1dv = NULL;
+       PFNGLVERTEXATTRIBL2DVPROC_MT VertexAttribL2dv = NULL;
+       PFNGLVERTEXATTRIBL3DVPROC_MT VertexAttribL3dv = NULL;
+       PFNGLVERTEXATTRIBL4DVPROC_MT VertexAttribL4dv = NULL;
+       PFNGLVERTEXATTRIBLPOINTERPROC_MT VertexAttribLPointer = NULL;
+       PFNGLGETVERTEXATTRIBLDVPROC_MT GetVertexAttribLdv = NULL;
+       PFNGLVIEWPORTARRAYVPROC_MT ViewportArrayv = NULL;
+       PFNGLVIEWPORTINDEXEDFPROC_MT ViewportIndexedf = NULL;
+       PFNGLVIEWPORTINDEXEDFVPROC_MT ViewportIndexedfv = NULL;
+       PFNGLSCISSORARRAYVPROC_MT ScissorArrayv = NULL;
+       PFNGLSCISSORINDEXEDPROC_MT ScissorIndexed = NULL;
+       PFNGLSCISSORINDEXEDVPROC_MT ScissorIndexedv = NULL;
+       PFNGLDEPTHRANGEARRAYVPROC_MT DepthRangeArrayv = NULL;
+       PFNGLDEPTHRANGEINDEXEDPROC_MT DepthRangeIndexed = NULL;
+       PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC_MT DrawArraysInstancedBaseInstance = NULL;
+       PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC_MT DrawElementsInstancedBaseInstance = NULL;
+       PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC_MT DrawElementsInstancedBaseVertexBaseInstance = NULL;
+       PFNGLGETINTERNALFORMATIVPROC_MT GetInternalformativ = NULL;
+       PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC_MT GetActiveAtomicCounterBufferiv = NULL;
+       PFNGLBINDIMAGETEXTUREPROC_MT BindImageTexture = NULL;
+       PFNGLMEMORYBARRIERPROC_MT MemoryBarrier = NULL;
+       PFNGLTEXSTORAGE1DPROC_MT TexStorage1D = NULL;
+       PFNGLTEXSTORAGE2DPROC_MT TexStorage2D = NULL;
+       PFNGLTEXSTORAGE3DPROC_MT TexStorage3D = NULL;
+       PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC_MT DrawTransformFeedbackInstanced = NULL;
+       PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC_MT DrawTransformFeedbackStreamInstanced = NULL;
+       PFNGLCLEARBUFFERDATAPROC_MT ClearBufferData = NULL;
+       PFNGLCLEARBUFFERSUBDATAPROC_MT ClearBufferSubData = NULL;
+       PFNGLDISPATCHCOMPUTEPROC_MT DispatchCompute = NULL;
+       PFNGLDISPATCHCOMPUTEINDIRECTPROC_MT DispatchComputeIndirect = NULL;
+       PFNGLCOPYIMAGESUBDATAPROC_MT CopyImageSubData = NULL;
+       PFNGLFRAMEBUFFERPARAMETERIPROC_MT FramebufferParameteri = NULL;
+       PFNGLGETFRAMEBUFFERPARAMETERIVPROC_MT GetFramebufferParameteriv = NULL;
+       PFNGLGETINTERNALFORMATI64VPROC_MT GetInternalformati64v = NULL;
+       PFNGLINVALIDATETEXSUBIMAGEPROC_MT InvalidateTexSubImage = NULL;
+       PFNGLINVALIDATETEXIMAGEPROC_MT InvalidateTexImage = NULL;
+       PFNGLINVALIDATEBUFFERSUBDATAPROC_MT InvalidateBufferSubData = NULL;
+       PFNGLINVALIDATEBUFFERDATAPROC_MT InvalidateBufferData = NULL;
+       PFNGLINVALIDATEFRAMEBUFFERPROC_MT InvalidateFramebuffer = NULL;
+       PFNGLINVALIDATESUBFRAMEBUFFERPROC_MT InvalidateSubFramebuffer = NULL;
+       PFNGLMULTIDRAWARRAYSINDIRECTPROC_MT MultiDrawArraysIndirect = NULL;
+       PFNGLMULTIDRAWELEMENTSINDIRECTPROC_MT MultiDrawElementsIndirect = NULL;
+       PFNGLGETPROGRAMINTERFACEIVPROC_MT GetProgramInterfaceiv = NULL;
+       PFNGLGETPROGRAMRESOURCEINDEXPROC_MT GetProgramResourceIndex = NULL;
+       PFNGLGETPROGRAMRESOURCENAMEPROC_MT GetProgramResourceName = NULL;
+       PFNGLGETPROGRAMRESOURCEIVPROC_MT GetProgramResourceiv = NULL;
+       PFNGLGETPROGRAMRESOURCELOCATIONPROC_MT GetProgramResourceLocation = NULL;
+       PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC_MT GetProgramResourceLocationIndex = NULL;
+       PFNGLSHADERSTORAGEBLOCKBINDINGPROC_MT ShaderStorageBlockBinding = NULL;
+       PFNGLTEXBUFFERRANGEPROC_MT TexBufferRange = NULL;
+       PFNGLTEXSTORAGE2DMULTISAMPLEPROC_MT TexStorage2DMultisample = NULL;
+       PFNGLTEXSTORAGE3DMULTISAMPLEPROC_MT TexStorage3DMultisample = NULL;
+       PFNGLTEXTUREVIEWPROC_MT TextureView = NULL;
+       PFNGLBINDVERTEXBUFFERPROC_MT BindVertexBuffer = NULL;
+       PFNGLVERTEXATTRIBFORMATPROC_MT VertexAttribFormat = NULL;
+       PFNGLVERTEXATTRIBIFORMATPROC_MT VertexAttribIFormat = NULL;
+       PFNGLVERTEXATTRIBLFORMATPROC_MT VertexAttribLFormat = NULL;
+       PFNGLVERTEXATTRIBBINDINGPROC_MT VertexAttribBinding = NULL;
+       PFNGLVERTEXBINDINGDIVISORPROC_MT VertexBindingDivisor = NULL;
+       PFNGLDEBUGMESSAGECONTROLPROC_MT DebugMessageControl = NULL;
+       PFNGLDEBUGMESSAGEINSERTPROC_MT DebugMessageInsert = NULL;
+       PFNGLDEBUGMESSAGECALLBACKPROC_MT DebugMessageCallback = NULL;
+       PFNGLGETDEBUGMESSAGELOGPROC_MT GetDebugMessageLog = NULL;
+       PFNGLPUSHDEBUGGROUPPROC_MT PushDebugGroup = NULL;
+       PFNGLPOPDEBUGGROUPPROC_MT PopDebugGroup = NULL;
+       PFNGLOBJECTLABELPROC_MT ObjectLabel = NULL;
+       PFNGLGETOBJECTLABELPROC_MT GetObjectLabel = NULL;
+       PFNGLOBJECTPTRLABELPROC_MT ObjectPtrLabel = NULL;
+       PFNGLGETOBJECTPTRLABELPROC_MT GetObjectPtrLabel = NULL;
+       PFNGLBUFFERSTORAGEPROC_MT BufferStorage = NULL;
+       PFNGLCLEARTEXIMAGEPROC_MT ClearTexImage = NULL;
+       PFNGLCLEARTEXSUBIMAGEPROC_MT ClearTexSubImage = NULL;
+       PFNGLBINDBUFFERSBASEPROC_MT BindBuffersBase = NULL;
+       PFNGLBINDBUFFERSRANGEPROC_MT BindBuffersRange = NULL;
+       PFNGLBINDTEXTURESPROC_MT BindTextures = NULL;
+       PFNGLBINDSAMPLERSPROC_MT BindSamplers = NULL;
+       PFNGLBINDIMAGETEXTURESPROC_MT BindImageTextures = NULL;
+       PFNGLBINDVERTEXBUFFERSPROC_MT BindVertexBuffers = NULL;
+       PFNGLCLIPCONTROLPROC_MT ClipControl = NULL;
+       PFNGLCREATETRANSFORMFEEDBACKSPROC_MT CreateTransformFeedbacks = NULL;
+       PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC_MT TransformFeedbackBufferBase = NULL;
+       PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC_MT TransformFeedbackBufferRange = NULL;
+       PFNGLGETTRANSFORMFEEDBACKIVPROC_MT GetTransformFeedbackiv = NULL;
+       PFNGLCREATEBUFFERSPROC_MT CreateBuffers = NULL;
+       PFNGLNAMEDBUFFERSTORAGEPROC_MT NamedBufferStorage = NULL;
+       PFNGLNAMEDBUFFERDATAPROC_MT NamedBufferData = NULL;
+       PFNGLNAMEDBUFFERSUBDATAPROC_MT NamedBufferSubData = NULL;
+       PFNGLCOPYNAMEDBUFFERSUBDATAPROC_MT CopyNamedBufferSubData = NULL;
+       PFNGLCLEARNAMEDBUFFERDATAPROC_MT ClearNamedBufferData = NULL;
+       PFNGLCLEARNAMEDBUFFERSUBDATAPROC_MT ClearNamedBufferSubData = NULL;
+       PFNGLMAPNAMEDBUFFERPROC_MT MapNamedBuffer = NULL;
+       PFNGLMAPNAMEDBUFFERRANGEPROC_MT MapNamedBufferRange = NULL;
+       PFNGLUNMAPNAMEDBUFFERPROC_MT UnmapNamedBuffer = NULL;
+       PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC_MT FlushMappedNamedBufferRange = NULL;
+       PFNGLGETNAMEDBUFFERPARAMETERIVPROC_MT GetNamedBufferParameteriv = NULL;
+       PFNGLGETNAMEDBUFFERPARAMETERI64VPROC_MT GetNamedBufferParameteri64v = NULL;
+       PFNGLGETNAMEDBUFFERPOINTERVPROC_MT GetNamedBufferPointerv = NULL;
+       PFNGLGETNAMEDBUFFERSUBDATAPROC_MT GetNamedBufferSubData = NULL;
+       PFNGLCREATEFRAMEBUFFERSPROC_MT CreateFramebuffers = NULL;
+       PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC_MT NamedFramebufferRenderbuffer = NULL;
+       PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC_MT NamedFramebufferParameteri = NULL;
+       PFNGLNAMEDFRAMEBUFFERTEXTUREPROC_MT NamedFramebufferTexture = NULL;
+       PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC_MT NamedFramebufferTextureLayer = NULL;
+       PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC_MT NamedFramebufferDrawBuffer = NULL;
+       PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC_MT NamedFramebufferDrawBuffers = NULL;
+       PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC_MT NamedFramebufferReadBuffer = NULL;
+       PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC_MT InvalidateNamedFramebufferData = NULL;
+       PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC_MT InvalidateNamedFramebufferSubData = NULL;
+       PFNGLCLEARNAMEDFRAMEBUFFERIVPROC_MT ClearNamedFramebufferiv = NULL;
+       PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC_MT ClearNamedFramebufferuiv = NULL;
+       PFNGLCLEARNAMEDFRAMEBUFFERFVPROC_MT ClearNamedFramebufferfv = NULL;
+       PFNGLCLEARNAMEDFRAMEBUFFERFIPROC_MT ClearNamedFramebufferfi = NULL;
+       PFNGLBLITNAMEDFRAMEBUFFERPROC_MT BlitNamedFramebuffer = NULL;
+       PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC_MT CheckNamedFramebufferStatus = NULL;
+       PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC_MT GetNamedFramebufferParameteriv = NULL;
+       PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT GetNamedFramebufferAttachmentParameteriv = NULL;
+       PFNGLCREATERENDERBUFFERSPROC_MT CreateRenderbuffers = NULL;
+       PFNGLNAMEDRENDERBUFFERSTORAGEPROC_MT NamedRenderbufferStorage = NULL;
+       PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT NamedRenderbufferStorageMultisample = NULL;
+       PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC_MT GetNamedRenderbufferParameteriv = NULL;
+       PFNGLCREATETEXTURESPROC_MT CreateTextures = NULL;
+       PFNGLTEXTUREBUFFERPROC_MT TextureBuffer = NULL;
+       PFNGLTEXTUREBUFFERRANGEPROC_MT TextureBufferRange = NULL;
+       PFNGLTEXTURESTORAGE1DPROC_MT TextureStorage1D = NULL;
+       PFNGLTEXTURESTORAGE2DPROC_MT TextureStorage2D = NULL;
+       PFNGLTEXTURESTORAGE3DPROC_MT TextureStorage3D = NULL;
+       PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC_MT TextureStorage2DMultisample = NULL;
+       PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC_MT TextureStorage3DMultisample = NULL;
+       PFNGLTEXTURESUBIMAGE1DPROC_MT TextureSubImage1D = NULL;
+       PFNGLTEXTURESUBIMAGE2DPROC_MT TextureSubImage2D = NULL;
+       PFNGLTEXTURESUBIMAGE3DPROC_MT TextureSubImage3D = NULL;
+       PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC_MT CompressedTextureSubImage1D = NULL;
+       PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC_MT CompressedTextureSubImage2D = NULL;
+       PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC_MT CompressedTextureSubImage3D = NULL;
+       PFNGLCOPYTEXTURESUBIMAGE1DPROC_MT CopyTextureSubImage1D = NULL;
+       PFNGLCOPYTEXTURESUBIMAGE2DPROC_MT CopyTextureSubImage2D = NULL;
+       PFNGLCOPYTEXTURESUBIMAGE3DPROC_MT CopyTextureSubImage3D = NULL;
+       PFNGLTEXTUREPARAMETERFPROC_MT TextureParameterf = NULL;
+       PFNGLTEXTUREPARAMETERFVPROC_MT TextureParameterfv = NULL;
+       PFNGLTEXTUREPARAMETERIPROC_MT TextureParameteri = NULL;
+       PFNGLTEXTUREPARAMETERIIVPROC_MT TextureParameterIiv = NULL;
+       PFNGLTEXTUREPARAMETERIUIVPROC_MT TextureParameterIuiv = NULL;
+       PFNGLTEXTUREPARAMETERIVPROC_MT TextureParameteriv = NULL;
+       PFNGLGENERATETEXTUREMIPMAPPROC_MT GenerateTextureMipmap = NULL;
+       PFNGLBINDTEXTUREUNITPROC_MT BindTextureUnit = NULL;
+       PFNGLGETTEXTUREIMAGEPROC_MT GetTextureImage = NULL;
+       PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC_MT GetCompressedTextureImage = NULL;
+       PFNGLGETTEXTURELEVELPARAMETERFVPROC_MT GetTextureLevelParameterfv = NULL;
+       PFNGLGETTEXTURELEVELPARAMETERIVPROC_MT GetTextureLevelParameteriv = NULL;
+       PFNGLGETTEXTUREPARAMETERFVPROC_MT GetTextureParameterfv = NULL;
+       PFNGLGETTEXTUREPARAMETERIIVPROC_MT GetTextureParameterIiv = NULL;
+       PFNGLGETTEXTUREPARAMETERIUIVPROC_MT GetTextureParameterIuiv = NULL;
+       PFNGLGETTEXTUREPARAMETERIVPROC_MT GetTextureParameteriv = NULL;
+       PFNGLCREATEVERTEXARRAYSPROC_MT CreateVertexArrays = NULL;
+       PFNGLDISABLEVERTEXARRAYATTRIBPROC_MT DisableVertexArrayAttrib = NULL;
+       PFNGLENABLEVERTEXARRAYATTRIBPROC_MT EnableVertexArrayAttrib = NULL;
+       PFNGLVERTEXARRAYELEMENTBUFFERPROC_MT VertexArrayElementBuffer = NULL;
+       PFNGLVERTEXARRAYVERTEXBUFFERPROC_MT VertexArrayVertexBuffer = NULL;
+       PFNGLVERTEXARRAYVERTEXBUFFERSPROC_MT VertexArrayVertexBuffers = NULL;
+       PFNGLVERTEXARRAYATTRIBBINDINGPROC_MT VertexArrayAttribBinding = NULL;
+       PFNGLVERTEXARRAYATTRIBFORMATPROC_MT VertexArrayAttribFormat = NULL;
+       PFNGLVERTEXARRAYATTRIBIFORMATPROC_MT VertexArrayAttribIFormat = NULL;
+       PFNGLVERTEXARRAYATTRIBLFORMATPROC_MT VertexArrayAttribLFormat = NULL;
+       PFNGLVERTEXARRAYBINDINGDIVISORPROC_MT VertexArrayBindingDivisor = NULL;
+       PFNGLGETVERTEXARRAYIVPROC_MT GetVertexArrayiv = NULL;
+       PFNGLGETVERTEXARRAYINDEXEDIVPROC_MT GetVertexArrayIndexediv = NULL;
+       PFNGLGETVERTEXARRAYINDEXED64IVPROC_MT GetVertexArrayIndexed64iv = NULL;
+       PFNGLCREATESAMPLERSPROC_MT CreateSamplers = NULL;
+       PFNGLCREATEPROGRAMPIPELINESPROC_MT CreateProgramPipelines = NULL;
+       PFNGLCREATEQUERIESPROC_MT CreateQueries = NULL;
+       PFNGLGETQUERYBUFFEROBJECTI64VPROC_MT GetQueryBufferObjecti64v = NULL;
+       PFNGLGETQUERYBUFFEROBJECTIVPROC_MT GetQueryBufferObjectiv = NULL;
+       PFNGLGETQUERYBUFFEROBJECTUI64VPROC_MT GetQueryBufferObjectui64v = NULL;
+       PFNGLGETQUERYBUFFEROBJECTUIVPROC_MT GetQueryBufferObjectuiv = NULL;
+       PFNGLMEMORYBARRIERBYREGIONPROC_MT MemoryBarrierByRegion = NULL;
+       PFNGLGETTEXTURESUBIMAGEPROC_MT GetTextureSubImage = NULL;
+       PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC_MT GetCompressedTextureSubImage = NULL;
+       PFNGLGETGRAPHICSRESETSTATUSPROC_MT GetGraphicsResetStatus = NULL;
+       PFNGLGETNCOMPRESSEDTEXIMAGEPROC_MT GetnCompressedTexImage = NULL;
+       PFNGLGETNTEXIMAGEPROC_MT GetnTexImage = NULL;
+       PFNGLGETNUNIFORMDVPROC_MT GetnUniformdv = NULL;
+       PFNGLGETNUNIFORMFVPROC_MT GetnUniformfv = NULL;
+       PFNGLGETNUNIFORMIVPROC_MT GetnUniformiv = NULL;
+       PFNGLGETNUNIFORMUIVPROC_MT GetnUniformuiv = NULL;
+       PFNGLREADNPIXELSPROC_MT ReadnPixels = NULL;
+       PFNGLTEXTUREBARRIERPROC_MT TextureBarrier = NULL;
+       PFNGLSPECIALIZESHADERPROC_MT SpecializeShader = NULL;
+       PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT MultiDrawArraysIndirectCount = NULL;
+       PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT MultiDrawElementsIndirectCount = NULL;
+       PFNGLPOLYGONOFFSETCLAMPPROC_MT PolygonOffsetClamp = NULL;
+       PFNGLGENPERFMONITORSEXPROC_MT GenPerfMonitorsEX = NULL;
+       PFNGLPRIMITIVEBOUNDINGBOXPROC_MT PrimitiveBoundingBox = NULL;
+       PFNGLGETTEXTUREHANDLEPROC_MT GetTextureHandle = NULL;
+       PFNGLGETTEXTURESAMPLERHANDLEPROC_MT GetTextureSamplerHandle = NULL;
+       PFNGLMAKETEXTUREHANDLERESIDENTPROC_MT MakeTextureHandleResident = NULL;
+       PFNGLMAKETEXTUREHANDLENONRESIDENTPROC_MT MakeTextureHandleNonResident = NULL;
+       PFNGLGETIMAGEHANDLEPROC_MT GetImageHandle = NULL;
+       PFNGLMAKEIMAGEHANDLERESIDENTPROC_MT MakeImageHandleResident = NULL;
+       PFNGLMAKEIMAGEHANDLENONRESIDENTPROC_MT MakeImageHandleNonResident = NULL;
+       PFNGLUNIFORMHANDLEUI64PROC_MT UniformHandleui64 = NULL;
+       PFNGLUNIFORMHANDLEUI64VPROC_MT UniformHandleui64v = NULL;
+       PFNGLPROGRAMUNIFORMHANDLEUI64PROC_MT ProgramUniformHandleui64 = NULL;
+       PFNGLPROGRAMUNIFORMHANDLEUI64VPROC_MT ProgramUniformHandleui64v = NULL;
+       PFNGLISTEXTUREHANDLERESIDENTPROC_MT IsTextureHandleResident = NULL;
+       PFNGLISIMAGEHANDLERESIDENTPROC_MT IsImageHandleResident = NULL;
+       PFNGLVERTEXATTRIBL1UI64PROC_MT VertexAttribL1ui64 = NULL;
+       PFNGLVERTEXATTRIBL1UI64VPROC_MT VertexAttribL1ui64v = NULL;
+       PFNGLGETVERTEXATTRIBLUI64VPROC_MT GetVertexAttribLui64v = NULL;
+       PFNGLCREATESYNCFROMCLEVENTPROC_MT CreateSyncFromCLevent = NULL;
+       PFNGLDISPATCHCOMPUTEGROUPSIZEPROC_MT DispatchComputeGroupSize = NULL;
+       PFNGLFRAMEBUFFERTEXTUREFACEPROC_MT FramebufferTextureFace = NULL;
+       PFNGLUNIFORM1I64PROC_MT Uniform1i64 = NULL;
+       PFNGLUNIFORM2I64PROC_MT Uniform2i64 = NULL;
+       PFNGLUNIFORM3I64PROC_MT Uniform3i64 = NULL;
+       PFNGLUNIFORM4I64PROC_MT Uniform4i64 = NULL;
+       PFNGLUNIFORM1I64VPROC_MT Uniform1i64v = NULL;
+       PFNGLUNIFORM2I64VPROC_MT Uniform2i64v = NULL;
+       PFNGLUNIFORM3I64VPROC_MT Uniform3i64v = NULL;
+       PFNGLUNIFORM4I64VPROC_MT Uniform4i64v = NULL;
+       PFNGLUNIFORM1UI64PROC_MT Uniform1ui64 = NULL;
+       PFNGLUNIFORM2UI64PROC_MT Uniform2ui64 = NULL;
+       PFNGLUNIFORM3UI64PROC_MT Uniform3ui64 = NULL;
+       PFNGLUNIFORM4UI64PROC_MT Uniform4ui64 = NULL;
+       PFNGLUNIFORM1UI64VPROC_MT Uniform1ui64v = NULL;
+       PFNGLUNIFORM2UI64VPROC_MT Uniform2ui64v = NULL;
+       PFNGLUNIFORM3UI64VPROC_MT Uniform3ui64v = NULL;
+       PFNGLUNIFORM4UI64VPROC_MT Uniform4ui64v = NULL;
+       PFNGLGETUNIFORMI64VPROC_MT GetUniformi64v = NULL;
+       PFNGLGETUNIFORMUI64VPROC_MT GetUniformui64v = NULL;
+       PFNGLGETNUNIFORMI64VPROC_MT GetnUniformi64v = NULL;
+       PFNGLGETNUNIFORMUI64VPROC_MT GetnUniformui64v = NULL;
+       PFNGLPROGRAMUNIFORM1I64PROC_MT ProgramUniform1i64 = NULL;
+       PFNGLPROGRAMUNIFORM2I64PROC_MT ProgramUniform2i64 = NULL;
+       PFNGLPROGRAMUNIFORM3I64PROC_MT ProgramUniform3i64 = NULL;
+       PFNGLPROGRAMUNIFORM4I64PROC_MT ProgramUniform4i64 = NULL;
+       PFNGLPROGRAMUNIFORM1I64VPROC_MT ProgramUniform1i64v = NULL;
+       PFNGLPROGRAMUNIFORM2I64VPROC_MT ProgramUniform2i64v = NULL;
+       PFNGLPROGRAMUNIFORM3I64VPROC_MT ProgramUniform3i64v = NULL;
+       PFNGLPROGRAMUNIFORM4I64VPROC_MT ProgramUniform4i64v = NULL;
+       PFNGLPROGRAMUNIFORM1UI64PROC_MT ProgramUniform1ui64 = NULL;
+       PFNGLPROGRAMUNIFORM2UI64PROC_MT ProgramUniform2ui64 = NULL;
+       PFNGLPROGRAMUNIFORM3UI64PROC_MT ProgramUniform3ui64 = NULL;
+       PFNGLPROGRAMUNIFORM4UI64PROC_MT ProgramUniform4ui64 = NULL;
+       PFNGLPROGRAMUNIFORM1UI64VPROC_MT ProgramUniform1ui64v = NULL;
+       PFNGLPROGRAMUNIFORM2UI64VPROC_MT ProgramUniform2ui64v = NULL;
+       PFNGLPROGRAMUNIFORM3UI64VPROC_MT ProgramUniform3ui64v = NULL;
+       PFNGLPROGRAMUNIFORM4UI64VPROC_MT ProgramUniform4ui64v = NULL;
+       PFNGLMAXSHADERCOMPILERTHREADSPROC_MT MaxShaderCompilerThreads = NULL;
+       PFNGLFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT FramebufferSampleLocationsfv = NULL;
+       PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT NamedFramebufferSampleLocationsfv = NULL;
+       PFNGLEVALUATEDEPTHVALUESPROC_MT EvaluateDepthValues = NULL;
+       PFNGLNAMEDSTRINGPROC_MT NamedString = NULL;
+       PFNGLDELETENAMEDSTRINGPROC_MT DeleteNamedString = NULL;
+       PFNGLCOMPILESHADERINCLUDEPROC_MT CompileShaderInclude = NULL;
+       PFNGLISNAMEDSTRINGPROC_MT IsNamedString = NULL;
+       PFNGLGETNAMEDSTRINGPROC_MT GetNamedString = NULL;
+       PFNGLGETNAMEDSTRINGIVPROC_MT GetNamedStringiv = NULL;
+       PFNGLBUFFERPAGECOMMITMENTPROC_MT BufferPageCommitment = NULL;
+       PFNGLNAMEDBUFFERPAGECOMMITMENTPROC_MT NamedBufferPageCommitment = NULL;
+       PFNGLTEXPAGECOMMITMENTPROC_MT TexPageCommitment = NULL;
+
+       static constexpr const GLenum DEPTH_BUFFER_BIT = 0x00000100;
+       static constexpr const GLenum STENCIL_BUFFER_BIT = 0x00000400;
+       static constexpr const GLenum COLOR_BUFFER_BIT = 0x00004000;
+       static constexpr const GLenum POINTS = 0x0000;
+       static constexpr const GLenum LINES = 0x0001;
+       static constexpr const GLenum LINE_LOOP = 0x0002;
+       static constexpr const GLenum LINE_STRIP = 0x0003;
+       static constexpr const GLenum TRIANGLES = 0x0004;
+       static constexpr const GLenum TRIANGLE_STRIP = 0x0005;
+       static constexpr const GLenum TRIANGLE_FAN = 0x0006;
+       static constexpr const GLenum QUADS = 0x0007;
+       static constexpr const GLenum NEVER = 0x0200;
+       static constexpr const GLenum LESS = 0x0201;
+       static constexpr const GLenum EQUAL = 0x0202;
+       static constexpr const GLenum LEQUAL = 0x0203;
+       static constexpr const GLenum GREATER = 0x0204;
+       static constexpr const GLenum NOTEQUAL = 0x0205;
+       static constexpr const GLenum GEQUAL = 0x0206;
+       static constexpr const GLenum ALWAYS = 0x0207;
+       static constexpr const GLenum SRC_COLOR = 0x0300;
+       static constexpr const GLenum ONE_MINUS_SRC_COLOR = 0x0301;
+       static constexpr const GLenum SRC_ALPHA = 0x0302;
+       static constexpr const GLenum ONE_MINUS_SRC_ALPHA = 0x0303;
+       static constexpr const GLenum DST_ALPHA = 0x0304;
+       static constexpr const GLenum ONE_MINUS_DST_ALPHA = 0x0305;
+       static constexpr const GLenum DST_COLOR = 0x0306;
+       static constexpr const GLenum ONE_MINUS_DST_COLOR = 0x0307;
+       static constexpr const GLenum SRC_ALPHA_SATURATE = 0x0308;
+       static constexpr const GLenum FRONT_LEFT = 0x0400;
+       static constexpr const GLenum FRONT_RIGHT = 0x0401;
+       static constexpr const GLenum BACK_LEFT = 0x0402;
+       static constexpr const GLenum BACK_RIGHT = 0x0403;
+       static constexpr const GLenum FRONT = 0x0404;
+       static constexpr const GLenum BACK = 0x0405;
+       static constexpr const GLenum LEFT = 0x0406;
+       static constexpr const GLenum RIGHT = 0x0407;
+       static constexpr const GLenum FRONT_AND_BACK = 0x0408;
+       static constexpr const GLenum INVALID_ENUM = 0x0500;
+       static constexpr const GLenum INVALID_VALUE = 0x0501;
+       static constexpr const GLenum INVALID_OPERATION = 0x0502;
+       static constexpr const GLenum OUT_OF_MEMORY = 0x0505;
+       static constexpr const GLenum CW = 0x0900;
+       static constexpr const GLenum CCW = 0x0901;
+       static constexpr const GLenum POINT_SIZE = 0x0B11;
+       static constexpr const GLenum POINT_SIZE_RANGE = 0x0B12;
+       static constexpr const GLenum POINT_SIZE_GRANULARITY = 0x0B13;
+       static constexpr const GLenum LINE_SMOOTH = 0x0B20;
+       static constexpr const GLenum LINE_WIDTH = 0x0B21;
+       static constexpr const GLenum LINE_WIDTH_RANGE = 0x0B22;
+       static constexpr const GLenum LINE_WIDTH_GRANULARITY = 0x0B23;
+       static constexpr const GLenum POLYGON_MODE = 0x0B40;
+       static constexpr const GLenum POLYGON_SMOOTH = 0x0B41;
+       static constexpr const GLenum CULL_FACE = 0x0B44;
+       static constexpr const GLenum CULL_FACE_MODE = 0x0B45;
+       static constexpr const GLenum FRONT_FACE = 0x0B46;
+       static constexpr const GLenum DEPTH_RANGE = 0x0B70;
+       static constexpr const GLenum DEPTH_TEST = 0x0B71;
+       static constexpr const GLenum DEPTH_WRITEMASK = 0x0B72;
+       static constexpr const GLenum DEPTH_CLEAR_VALUE = 0x0B73;
+       static constexpr const GLenum DEPTH_FUNC = 0x0B74;
+       static constexpr const GLenum STENCIL_TEST = 0x0B90;
+       static constexpr const GLenum STENCIL_CLEAR_VALUE = 0x0B91;
+       static constexpr const GLenum STENCIL_FUNC = 0x0B92;
+       static constexpr const GLenum STENCIL_VALUE_MASK = 0x0B93;
+       static constexpr const GLenum STENCIL_FAIL = 0x0B94;
+       static constexpr const GLenum STENCIL_PASS_DEPTH_FAIL = 0x0B95;
+       static constexpr const GLenum STENCIL_PASS_DEPTH_PASS = 0x0B96;
+       static constexpr const GLenum STENCIL_REF = 0x0B97;
+       static constexpr const GLenum STENCIL_WRITEMASK = 0x0B98;
+       static constexpr const GLenum VIEWPORT = 0x0BA2;
+       static constexpr const GLenum DITHER = 0x0BD0;
+       static constexpr const GLenum BLEND_DST = 0x0BE0;
+       static constexpr const GLenum BLEND_SRC = 0x0BE1;
+       static constexpr const GLenum BLEND = 0x0BE2;
+       static constexpr const GLenum LOGIC_OP_MODE = 0x0BF0;
+       static constexpr const GLenum DRAW_BUFFER = 0x0C01;
+       static constexpr const GLenum READ_BUFFER = 0x0C02;
+       static constexpr const GLenum SCISSOR_BOX = 0x0C10;
+       static constexpr const GLenum SCISSOR_TEST = 0x0C11;
+       static constexpr const GLenum COLOR_CLEAR_VALUE = 0x0C22;
+       static constexpr const GLenum COLOR_WRITEMASK = 0x0C23;
+       static constexpr const GLenum DOUBLEBUFFER = 0x0C32;
+       static constexpr const GLenum STEREO = 0x0C33;
+       static constexpr const GLenum LINE_SMOOTH_HINT = 0x0C52;
+       static constexpr const GLenum POLYGON_SMOOTH_HINT = 0x0C53;
+       static constexpr const GLenum UNPACK_SWAP_BYTES = 0x0CF0;
+       static constexpr const GLenum UNPACK_LSB_FIRST = 0x0CF1;
+       static constexpr const GLenum UNPACK_ROW_LENGTH = 0x0CF2;
+       static constexpr const GLenum UNPACK_SKIP_ROWS = 0x0CF3;
+       static constexpr const GLenum UNPACK_SKIP_PIXELS = 0x0CF4;
+       static constexpr const GLenum UNPACK_ALIGNMENT = 0x0CF5;
+       static constexpr const GLenum PACK_SWAP_BYTES = 0x0D00;
+       static constexpr const GLenum PACK_LSB_FIRST = 0x0D01;
+       static constexpr const GLenum PACK_ROW_LENGTH = 0x0D02;
+       static constexpr const GLenum PACK_SKIP_ROWS = 0x0D03;
+       static constexpr const GLenum PACK_SKIP_PIXELS = 0x0D04;
+       static constexpr const GLenum PACK_ALIGNMENT = 0x0D05;
+       static constexpr const GLenum MAX_TEXTURE_SIZE = 0x0D33;
+       static constexpr const GLenum MAX_VIEWPORT_DIMS = 0x0D3A;
+       static constexpr const GLenum SUBPIXEL_BITS = 0x0D50;
+       static constexpr const GLenum TEXTURE_1D = 0x0DE0;
+       static constexpr const GLenum TEXTURE_2D = 0x0DE1;
+       static constexpr const GLenum TEXTURE_WIDTH = 0x1000;
+       static constexpr const GLenum TEXTURE_HEIGHT = 0x1001;
+       static constexpr const GLenum TEXTURE_BORDER_COLOR = 0x1004;
+       static constexpr const GLenum DONT_CARE = 0x1100;
+       static constexpr const GLenum FASTEST = 0x1101;
+       static constexpr const GLenum NICEST = 0x1102;
+       static constexpr const GLenum BYTE = 0x1400;
+       static constexpr const GLenum UNSIGNED_BYTE = 0x1401;
+       static constexpr const GLenum SHORT = 0x1402;
+       static constexpr const GLenum UNSIGNED_SHORT = 0x1403;
+       static constexpr const GLenum INT = 0x1404;
+       static constexpr const GLenum UNSIGNED_INT = 0x1405;
+       static constexpr const GLenum FLOAT = 0x1406;
+       static constexpr const GLenum STACK_OVERFLOW = 0x0503;
+       static constexpr const GLenum STACK_UNDERFLOW = 0x0504;
+       static constexpr const GLenum CLEAR = 0x1500;
+       static constexpr const GLenum AND = 0x1501;
+       static constexpr const GLenum AND_REVERSE = 0x1502;
+       static constexpr const GLenum COPY = 0x1503;
+       static constexpr const GLenum AND_INVERTED = 0x1504;
+       static constexpr const GLenum NOOP = 0x1505;
+       static constexpr const GLenum XOR = 0x1506;
+       static constexpr const GLenum OR = 0x1507;
+       static constexpr const GLenum NOR = 0x1508;
+       static constexpr const GLenum EQUIV = 0x1509;
+       static constexpr const GLenum INVERT = 0x150A;
+       static constexpr const GLenum OR_REVERSE = 0x150B;
+       static constexpr const GLenum COPY_INVERTED = 0x150C;
+       static constexpr const GLenum OR_INVERTED = 0x150D;
+       static constexpr const GLenum NAND = 0x150E;
+       static constexpr const GLenum SET = 0x150F;
+       static constexpr const GLenum TEXTURE = 0x1702;
+       static constexpr const GLenum COLOR = 0x1800;
+       static constexpr const GLenum DEPTH = 0x1801;
+       static constexpr const GLenum STENCIL = 0x1802;
+       static constexpr const GLenum STENCIL_INDEX = 0x1901;
+       static constexpr const GLenum DEPTH_COMPONENT = 0x1902;
+       static constexpr const GLenum RED = 0x1903;
+       static constexpr const GLenum GREEN = 0x1904;
+       static constexpr const GLenum BLUE = 0x1905;
+       static constexpr const GLenum ALPHA = 0x1906;
+       static constexpr const GLenum RGB = 0x1907;
+       static constexpr const GLenum RGBA = 0x1908;
+       static constexpr const GLenum POINT = 0x1B00;
+       static constexpr const GLenum LINE = 0x1B01;
+       static constexpr const GLenum FILL = 0x1B02;
+       static constexpr const GLenum KEEP = 0x1E00;
+       static constexpr const GLenum REPLACE = 0x1E01;
+       static constexpr const GLenum INCR = 0x1E02;
+       static constexpr const GLenum DECR = 0x1E03;
+       static constexpr const GLenum VENDOR = 0x1F00;
+       static constexpr const GLenum RENDERER = 0x1F01;
+       static constexpr const GLenum VERSION = 0x1F02;
+       static constexpr const GLenum EXTENSIONS = 0x1F03;
+       static constexpr const GLenum NEAREST = 0x2600;
+       static constexpr const GLenum LINEAR = 0x2601;
+       static constexpr const GLenum NEAREST_MIPMAP_NEAREST = 0x2700;
+       static constexpr const GLenum LINEAR_MIPMAP_NEAREST = 0x2701;
+       static constexpr const GLenum NEAREST_MIPMAP_LINEAR = 0x2702;
+       static constexpr const GLenum LINEAR_MIPMAP_LINEAR = 0x2703;
+       static constexpr const GLenum TEXTURE_MAG_FILTER = 0x2800;
+       static constexpr const GLenum TEXTURE_MIN_FILTER = 0x2801;
+       static constexpr const GLenum TEXTURE_WRAP_S = 0x2802;
+       static constexpr const GLenum TEXTURE_WRAP_T = 0x2803;
+       static constexpr const GLenum REPEAT = 0x2901;
+       static constexpr const GLenum COLOR_LOGIC_OP = 0x0BF2;
+       static constexpr const GLenum POLYGON_OFFSET_UNITS = 0x2A00;
+       static constexpr const GLenum POLYGON_OFFSET_POINT = 0x2A01;
+       static constexpr const GLenum POLYGON_OFFSET_LINE = 0x2A02;
+       static constexpr const GLenum POLYGON_OFFSET_FILL = 0x8037;
+       static constexpr const GLenum POLYGON_OFFSET_FACTOR = 0x8038;
+       static constexpr const GLenum TEXTURE_BINDING_1D = 0x8068;
+       static constexpr const GLenum TEXTURE_BINDING_2D = 0x8069;
+       static constexpr const GLenum TEXTURE_INTERNAL_FORMAT = 0x1003;
+       static constexpr const GLenum TEXTURE_RED_SIZE = 0x805C;
+       static constexpr const GLenum TEXTURE_GREEN_SIZE = 0x805D;
+       static constexpr const GLenum TEXTURE_BLUE_SIZE = 0x805E;
+       static constexpr const GLenum TEXTURE_ALPHA_SIZE = 0x805F;
+       static constexpr const GLenum DOUBLE = 0x140A;
+       static constexpr const GLenum PROXY_TEXTURE_1D = 0x8063;
+       static constexpr const GLenum PROXY_TEXTURE_2D = 0x8064;
+       static constexpr const GLenum R3_G3_B2 = 0x2A10;
+       static constexpr const GLenum RGB4 = 0x804F;
+       static constexpr const GLenum RGB5 = 0x8050;
+       static constexpr const GLenum RGB8 = 0x8051;
+       static constexpr const GLenum RGB10 = 0x8052;
+       static constexpr const GLenum RGB12 = 0x8053;
+       static constexpr const GLenum RGB16 = 0x8054;
+       static constexpr const GLenum RGBA2 = 0x8055;
+       static constexpr const GLenum RGBA4 = 0x8056;
+       static constexpr const GLenum RGB5_A1 = 0x8057;
+       static constexpr const GLenum RGBA8 = 0x8058;
+       static constexpr const GLenum RGB10_A2 = 0x8059;
+       static constexpr const GLenum RGBA12 = 0x805A;
+       static constexpr const GLenum RGBA16 = 0x805B;
+       static constexpr const GLenum VERTEX_ARRAY = 0x8074;
+       static constexpr const GLenum UNSIGNED_BYTE_3_3_2 = 0x8032;
+       static constexpr const GLenum UNSIGNED_SHORT_4_4_4_4 = 0x8033;
+       static constexpr const GLenum UNSIGNED_SHORT_5_5_5_1 = 0x8034;
+       static constexpr const GLenum UNSIGNED_INT_8_8_8_8 = 0x8035;
+       static constexpr const GLenum UNSIGNED_INT_10_10_10_2 = 0x8036;
+       static constexpr const GLenum TEXTURE_BINDING_3D = 0x806A;
+       static constexpr const GLenum PACK_SKIP_IMAGES = 0x806B;
+       static constexpr const GLenum PACK_IMAGE_HEIGHT = 0x806C;
+       static constexpr const GLenum UNPACK_SKIP_IMAGES = 0x806D;
+       static constexpr const GLenum UNPACK_IMAGE_HEIGHT = 0x806E;
+       static constexpr const GLenum TEXTURE_3D = 0x806F;
+       static constexpr const GLenum PROXY_TEXTURE_3D = 0x8070;
+       static constexpr const GLenum TEXTURE_DEPTH = 0x8071;
+       static constexpr const GLenum TEXTURE_WRAP_R = 0x8072;
+       static constexpr const GLenum MAX_3D_TEXTURE_SIZE = 0x8073;
+       static constexpr const GLenum UNSIGNED_BYTE_2_3_3_REV = 0x8362;
+       static constexpr const GLenum UNSIGNED_SHORT_5_6_5 = 0x8363;
+       static constexpr const GLenum UNSIGNED_SHORT_5_6_5_REV = 0x8364;
+       static constexpr const GLenum UNSIGNED_SHORT_4_4_4_4_REV = 0x8365;
+       static constexpr const GLenum UNSIGNED_SHORT_1_5_5_5_REV = 0x8366;
+       static constexpr const GLenum UNSIGNED_INT_8_8_8_8_REV = 0x8367;
+       static constexpr const GLenum UNSIGNED_INT_2_10_10_10_REV = 0x8368;
+       static constexpr const GLenum BGR = 0x80E0;
+       static constexpr const GLenum BGRA = 0x80E1;
+       static constexpr const GLenum MAX_ELEMENTS_VERTICES = 0x80E8;
+       static constexpr const GLenum MAX_ELEMENTS_INDICES = 0x80E9;
+       static constexpr const GLenum CLAMP_TO_EDGE = 0x812F;
+       static constexpr const GLenum TEXTURE_MIN_LOD = 0x813A;
+       static constexpr const GLenum TEXTURE_MAX_LOD = 0x813B;
+       static constexpr const GLenum TEXTURE_BASE_LEVEL = 0x813C;
+       static constexpr const GLenum TEXTURE_MAX_LEVEL = 0x813D;
+       static constexpr const GLenum SMOOTH_POINT_SIZE_RANGE = 0x0B12;
+       static constexpr const GLenum SMOOTH_POINT_SIZE_GRANULARITY = 0x0B13;
+       static constexpr const GLenum SMOOTH_LINE_WIDTH_RANGE = 0x0B22;
+       static constexpr const GLenum SMOOTH_LINE_WIDTH_GRANULARITY = 0x0B23;
+       static constexpr const GLenum ALIASED_LINE_WIDTH_RANGE = 0x846E;
+       static constexpr const GLenum TEXTURE0 = 0x84C0;
+       static constexpr const GLenum TEXTURE1 = 0x84C1;
+       static constexpr const GLenum TEXTURE2 = 0x84C2;
+       static constexpr const GLenum TEXTURE3 = 0x84C3;
+       static constexpr const GLenum TEXTURE4 = 0x84C4;
+       static constexpr const GLenum TEXTURE5 = 0x84C5;
+       static constexpr const GLenum TEXTURE6 = 0x84C6;
+       static constexpr const GLenum TEXTURE7 = 0x84C7;
+       static constexpr const GLenum TEXTURE8 = 0x84C8;
+       static constexpr const GLenum TEXTURE9 = 0x84C9;
+       static constexpr const GLenum TEXTURE10 = 0x84CA;
+       static constexpr const GLenum TEXTURE11 = 0x84CB;
+       static constexpr const GLenum TEXTURE12 = 0x84CC;
+       static constexpr const GLenum TEXTURE13 = 0x84CD;
+       static constexpr const GLenum TEXTURE14 = 0x84CE;
+       static constexpr const GLenum TEXTURE15 = 0x84CF;
+       static constexpr const GLenum TEXTURE16 = 0x84D0;
+       static constexpr const GLenum TEXTURE17 = 0x84D1;
+       static constexpr const GLenum TEXTURE18 = 0x84D2;
+       static constexpr const GLenum TEXTURE19 = 0x84D3;
+       static constexpr const GLenum TEXTURE20 = 0x84D4;
+       static constexpr const GLenum TEXTURE21 = 0x84D5;
+       static constexpr const GLenum TEXTURE22 = 0x84D6;
+       static constexpr const GLenum TEXTURE23 = 0x84D7;
+       static constexpr const GLenum TEXTURE24 = 0x84D8;
+       static constexpr const GLenum TEXTURE25 = 0x84D9;
+       static constexpr const GLenum TEXTURE26 = 0x84DA;
+       static constexpr const GLenum TEXTURE27 = 0x84DB;
+       static constexpr const GLenum TEXTURE28 = 0x84DC;
+       static constexpr const GLenum TEXTURE29 = 0x84DD;
+       static constexpr const GLenum TEXTURE30 = 0x84DE;
+       static constexpr const GLenum TEXTURE31 = 0x84DF;
+       static constexpr const GLenum ACTIVE_TEXTURE = 0x84E0;
+       static constexpr const GLenum MULTISAMPLE = 0x809D;
+       static constexpr const GLenum SAMPLE_ALPHA_TO_COVERAGE = 0x809E;
+       static constexpr const GLenum SAMPLE_ALPHA_TO_ONE = 0x809F;
+       static constexpr const GLenum SAMPLE_COVERAGE = 0x80A0;
+       static constexpr const GLenum SAMPLE_BUFFERS = 0x80A8;
+       static constexpr const GLenum SAMPLES = 0x80A9;
+       static constexpr const GLenum SAMPLE_COVERAGE_VALUE = 0x80AA;
+       static constexpr const GLenum SAMPLE_COVERAGE_INVERT = 0x80AB;
+       static constexpr const GLenum TEXTURE_CUBE_MAP = 0x8513;
+       static constexpr const GLenum TEXTURE_BINDING_CUBE_MAP = 0x8514;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_POSITIVE_X = 0x8515;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_NEGATIVE_X = 0x8516;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_POSITIVE_Y = 0x8517;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Y = 0x8518;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_POSITIVE_Z = 0x8519;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_NEGATIVE_Z = 0x851A;
+       static constexpr const GLenum PROXY_TEXTURE_CUBE_MAP = 0x851B;
+       static constexpr const GLenum MAX_CUBE_MAP_TEXTURE_SIZE = 0x851C;
+       static constexpr const GLenum COMPRESSED_RGB = 0x84ED;
+       static constexpr const GLenum COMPRESSED_RGBA = 0x84EE;
+       static constexpr const GLenum TEXTURE_COMPRESSION_HINT = 0x84EF;
+       static constexpr const GLenum TEXTURE_COMPRESSED_IMAGE_SIZE = 0x86A0;
+       static constexpr const GLenum TEXTURE_COMPRESSED = 0x86A1;
+       static constexpr const GLenum NUM_COMPRESSED_TEXTURE_FORMATS = 0x86A2;
+       static constexpr const GLenum COMPRESSED_TEXTURE_FORMATS = 0x86A3;
+       static constexpr const GLenum CLAMP_TO_BORDER = 0x812D;
+       static constexpr const GLenum BLEND_DST_RGB = 0x80C8;
+       static constexpr const GLenum BLEND_SRC_RGB = 0x80C9;
+       static constexpr const GLenum BLEND_DST_ALPHA = 0x80CA;
+       static constexpr const GLenum BLEND_SRC_ALPHA = 0x80CB;
+       static constexpr const GLenum POINT_FADE_THRESHOLD_SIZE = 0x8128;
+       static constexpr const GLenum DEPTH_COMPONENT16 = 0x81A5;
+       static constexpr const GLenum DEPTH_COMPONENT24 = 0x81A6;
+       static constexpr const GLenum DEPTH_COMPONENT32 = 0x81A7;
+       static constexpr const GLenum MIRRORED_REPEAT = 0x8370;
+       static constexpr const GLenum MAX_TEXTURE_LOD_BIAS = 0x84FD;
+       static constexpr const GLenum TEXTURE_LOD_BIAS = 0x8501;
+       static constexpr const GLenum INCR_WRAP = 0x8507;
+       static constexpr const GLenum DECR_WRAP = 0x8508;
+       static constexpr const GLenum TEXTURE_DEPTH_SIZE = 0x884A;
+       static constexpr const GLenum TEXTURE_COMPARE_MODE = 0x884C;
+       static constexpr const GLenum TEXTURE_COMPARE_FUNC = 0x884D;
+       static constexpr const GLenum BLEND_COLOR = 0x8005;
+       static constexpr const GLenum BLEND_EQUATION = 0x8009;
+       static constexpr const GLenum CONSTANT_COLOR = 0x8001;
+       static constexpr const GLenum ONE_MINUS_CONSTANT_COLOR = 0x8002;
+       static constexpr const GLenum CONSTANT_ALPHA = 0x8003;
+       static constexpr const GLenum ONE_MINUS_CONSTANT_ALPHA = 0x8004;
+       static constexpr const GLenum FUNC_ADD = 0x8006;
+       static constexpr const GLenum FUNC_REVERSE_SUBTRACT = 0x800B;
+       static constexpr const GLenum FUNC_SUBTRACT = 0x800A;
+       static constexpr const GLenum MIN = 0x8007;
+       static constexpr const GLenum MAX = 0x8008;
+       static constexpr const GLenum BUFFER_SIZE = 0x8764;
+       static constexpr const GLenum BUFFER_USAGE = 0x8765;
+       static constexpr const GLenum QUERY_COUNTER_BITS = 0x8864;
+       static constexpr const GLenum CURRENT_QUERY = 0x8865;
+       static constexpr const GLenum QUERY_RESULT = 0x8866;
+       static constexpr const GLenum QUERY_RESULT_AVAILABLE = 0x8867;
+       static constexpr const GLenum ARRAY_BUFFER = 0x8892;
+       static constexpr const GLenum ELEMENT_ARRAY_BUFFER = 0x8893;
+       static constexpr const GLenum ARRAY_BUFFER_BINDING = 0x8894;
+       static constexpr const GLenum ELEMENT_ARRAY_BUFFER_BINDING = 0x8895;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = 0x889F;
+       static constexpr const GLenum READ_ONLY = 0x88B8;
+       static constexpr const GLenum WRITE_ONLY = 0x88B9;
+       static constexpr const GLenum READ_WRITE = 0x88BA;
+       static constexpr const GLenum BUFFER_ACCESS = 0x88BB;
+       static constexpr const GLenum BUFFER_MAPPED = 0x88BC;
+       static constexpr const GLenum BUFFER_MAP_POINTER = 0x88BD;
+       static constexpr const GLenum STREAM_DRAW = 0x88E0;
+       static constexpr const GLenum STREAM_READ = 0x88E1;
+       static constexpr const GLenum STREAM_COPY = 0x88E2;
+       static constexpr const GLenum STATIC_DRAW = 0x88E4;
+       static constexpr const GLenum STATIC_READ = 0x88E5;
+       static constexpr const GLenum STATIC_COPY = 0x88E6;
+       static constexpr const GLenum DYNAMIC_DRAW = 0x88E8;
+       static constexpr const GLenum DYNAMIC_READ = 0x88E9;
+       static constexpr const GLenum DYNAMIC_COPY = 0x88EA;
+       static constexpr const GLenum SAMPLES_PASSED = 0x8914;
+       static constexpr const GLenum SRC1_ALPHA = 0x8589;
+       static constexpr const GLenum BLEND_EQUATION_RGB = 0x8009;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_ENABLED = 0x8622;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_SIZE = 0x8623;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_TYPE = 0x8625;
+       static constexpr const GLenum CURRENT_VERTEX_ATTRIB = 0x8626;
+       static constexpr const GLenum VERTEX_PROGRAM_POINT_SIZE = 0x8642;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_POINTER = 0x8645;
+       static constexpr const GLenum STENCIL_BACK_FUNC = 0x8800;
+       static constexpr const GLenum STENCIL_BACK_FAIL = 0x8801;
+       static constexpr const GLenum STENCIL_BACK_PASS_DEPTH_FAIL = 0x8802;
+       static constexpr const GLenum STENCIL_BACK_PASS_DEPTH_PASS = 0x8803;
+       static constexpr const GLenum MAX_DRAW_BUFFERS = 0x8824;
+       static constexpr const GLenum DRAW_BUFFER0 = 0x8825;
+       static constexpr const GLenum DRAW_BUFFER1 = 0x8826;
+       static constexpr const GLenum DRAW_BUFFER2 = 0x8827;
+       static constexpr const GLenum DRAW_BUFFER3 = 0x8828;
+       static constexpr const GLenum DRAW_BUFFER4 = 0x8829;
+       static constexpr const GLenum DRAW_BUFFER5 = 0x882A;
+       static constexpr const GLenum DRAW_BUFFER6 = 0x882B;
+       static constexpr const GLenum DRAW_BUFFER7 = 0x882C;
+       static constexpr const GLenum DRAW_BUFFER8 = 0x882D;
+       static constexpr const GLenum DRAW_BUFFER9 = 0x882E;
+       static constexpr const GLenum DRAW_BUFFER10 = 0x882F;
+       static constexpr const GLenum DRAW_BUFFER11 = 0x8830;
+       static constexpr const GLenum DRAW_BUFFER12 = 0x8831;
+       static constexpr const GLenum DRAW_BUFFER13 = 0x8832;
+       static constexpr const GLenum DRAW_BUFFER14 = 0x8833;
+       static constexpr const GLenum DRAW_BUFFER15 = 0x8834;
+       static constexpr const GLenum BLEND_EQUATION_ALPHA = 0x883D;
+       static constexpr const GLenum MAX_VERTEX_ATTRIBS = 0x8869;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_NORMALIZED = 0x886A;
+       static constexpr const GLenum MAX_TEXTURE_IMAGE_UNITS = 0x8872;
+       static constexpr const GLenum FRAGMENT_SHADER = 0x8B30;
+       static constexpr const GLenum VERTEX_SHADER = 0x8B31;
+       static constexpr const GLenum MAX_FRAGMENT_UNIFORM_COMPONENTS = 0x8B49;
+       static constexpr const GLenum MAX_VERTEX_UNIFORM_COMPONENTS = 0x8B4A;
+       static constexpr const GLenum MAX_VARYING_FLOATS = 0x8B4B;
+       static constexpr const GLenum MAX_VERTEX_TEXTURE_IMAGE_UNITS = 0x8B4C;
+       static constexpr const GLenum MAX_COMBINED_TEXTURE_IMAGE_UNITS = 0x8B4D;
+       static constexpr const GLenum SHADER_TYPE = 0x8B4F;
+       static constexpr const GLenum FLOAT_VEC2 = 0x8B50;
+       static constexpr const GLenum FLOAT_VEC3 = 0x8B51;
+       static constexpr const GLenum FLOAT_VEC4 = 0x8B52;
+       static constexpr const GLenum INT_VEC2 = 0x8B53;
+       static constexpr const GLenum INT_VEC3 = 0x8B54;
+       static constexpr const GLenum INT_VEC4 = 0x8B55;
+       static constexpr const GLenum BOOL = 0x8B56;
+       static constexpr const GLenum BOOL_VEC2 = 0x8B57;
+       static constexpr const GLenum BOOL_VEC3 = 0x8B58;
+       static constexpr const GLenum BOOL_VEC4 = 0x8B59;
+       static constexpr const GLenum FLOAT_MAT2 = 0x8B5A;
+       static constexpr const GLenum FLOAT_MAT3 = 0x8B5B;
+       static constexpr const GLenum FLOAT_MAT4 = 0x8B5C;
+       static constexpr const GLenum SAMPLER_1D = 0x8B5D;
+       static constexpr const GLenum SAMPLER_2D = 0x8B5E;
+       static constexpr const GLenum SAMPLER_3D = 0x8B5F;
+       static constexpr const GLenum SAMPLER_CUBE = 0x8B60;
+       static constexpr const GLenum SAMPLER_1D_SHADOW = 0x8B61;
+       static constexpr const GLenum SAMPLER_2D_SHADOW = 0x8B62;
+       static constexpr const GLenum DELETE_STATUS = 0x8B80;
+       static constexpr const GLenum COMPILE_STATUS = 0x8B81;
+       static constexpr const GLenum LINK_STATUS = 0x8B82;
+       static constexpr const GLenum VALIDATE_STATUS = 0x8B83;
+       static constexpr const GLenum INFO_LOG_LENGTH = 0x8B84;
+       static constexpr const GLenum ATTACHED_SHADERS = 0x8B85;
+       static constexpr const GLenum ACTIVE_UNIFORMS = 0x8B86;
+       static constexpr const GLenum ACTIVE_UNIFORM_MAX_LENGTH = 0x8B87;
+       static constexpr const GLenum SHADER_SOURCE_LENGTH = 0x8B88;
+       static constexpr const GLenum ACTIVE_ATTRIBUTES = 0x8B89;
+       static constexpr const GLenum ACTIVE_ATTRIBUTE_MAX_LENGTH = 0x8B8A;
+       static constexpr const GLenum FRAGMENT_SHADER_DERIVATIVE_HINT = 0x8B8B;
+       static constexpr const GLenum SHADING_LANGUAGE_VERSION = 0x8B8C;
+       static constexpr const GLenum CURRENT_PROGRAM = 0x8B8D;
+       static constexpr const GLenum POINT_SPRITE_COORD_ORIGIN = 0x8CA0;
+       static constexpr const GLenum LOWER_LEFT = 0x8CA1;
+       static constexpr const GLenum UPPER_LEFT = 0x8CA2;
+       static constexpr const GLenum STENCIL_BACK_REF = 0x8CA3;
+       static constexpr const GLenum STENCIL_BACK_VALUE_MASK = 0x8CA4;
+       static constexpr const GLenum STENCIL_BACK_WRITEMASK = 0x8CA5;
+       static constexpr const GLenum PIXEL_PACK_BUFFER = 0x88EB;
+       static constexpr const GLenum PIXEL_UNPACK_BUFFER = 0x88EC;
+       static constexpr const GLenum PIXEL_PACK_BUFFER_BINDING = 0x88ED;
+       static constexpr const GLenum PIXEL_UNPACK_BUFFER_BINDING = 0x88EF;
+       static constexpr const GLenum FLOAT_MAT2x3 = 0x8B65;
+       static constexpr const GLenum FLOAT_MAT2x4 = 0x8B66;
+       static constexpr const GLenum FLOAT_MAT3x2 = 0x8B67;
+       static constexpr const GLenum FLOAT_MAT3x4 = 0x8B68;
+       static constexpr const GLenum FLOAT_MAT4x2 = 0x8B69;
+       static constexpr const GLenum FLOAT_MAT4x3 = 0x8B6A;
+       static constexpr const GLenum SRGB = 0x8C40;
+       static constexpr const GLenum SRGB8 = 0x8C41;
+       static constexpr const GLenum SRGB_ALPHA = 0x8C42;
+       static constexpr const GLenum SRGB8_ALPHA8 = 0x8C43;
+       static constexpr const GLenum COMPRESSED_SRGB = 0x8C48;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA = 0x8C49;
+       static constexpr const GLenum COMPARE_REF_TO_TEXTURE = 0x884E;
+       static constexpr const GLenum CLIP_DISTANCE0 = 0x3000;
+       static constexpr const GLenum CLIP_DISTANCE1 = 0x3001;
+       static constexpr const GLenum CLIP_DISTANCE2 = 0x3002;
+       static constexpr const GLenum CLIP_DISTANCE3 = 0x3003;
+       static constexpr const GLenum CLIP_DISTANCE4 = 0x3004;
+       static constexpr const GLenum CLIP_DISTANCE5 = 0x3005;
+       static constexpr const GLenum CLIP_DISTANCE6 = 0x3006;
+       static constexpr const GLenum CLIP_DISTANCE7 = 0x3007;
+       static constexpr const GLenum MAX_CLIP_DISTANCES = 0x0D32;
+       static constexpr const GLenum MAJOR_VERSION = 0x821B;
+       static constexpr const GLenum MINOR_VERSION = 0x821C;
+       static constexpr const GLenum NUM_EXTENSIONS = 0x821D;
+       static constexpr const GLenum CONTEXT_FLAGS = 0x821E;
+       static constexpr const GLenum COMPRESSED_RED = 0x8225;
+       static constexpr const GLenum COMPRESSED_RG = 0x8226;
+       static constexpr const GLenum CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT = 0x00000001;
+       static constexpr const GLenum RGBA32F = 0x8814;
+       static constexpr const GLenum RGB32F = 0x8815;
+       static constexpr const GLenum RGBA16F = 0x881A;
+       static constexpr const GLenum RGB16F = 0x881B;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_INTEGER = 0x88FD;
+       static constexpr const GLenum MAX_ARRAY_TEXTURE_LAYERS = 0x88FF;
+       static constexpr const GLenum MIN_PROGRAM_TEXEL_OFFSET = 0x8904;
+       static constexpr const GLenum MAX_PROGRAM_TEXEL_OFFSET = 0x8905;
+       static constexpr const GLenum CLAMP_READ_COLOR = 0x891C;
+       static constexpr const GLenum FIXED_ONLY = 0x891D;
+       static constexpr const GLenum MAX_VARYING_COMPONENTS = 0x8B4B;
+       static constexpr const GLenum TEXTURE_1D_ARRAY = 0x8C18;
+       static constexpr const GLenum PROXY_TEXTURE_1D_ARRAY = 0x8C19;
+       static constexpr const GLenum TEXTURE_2D_ARRAY = 0x8C1A;
+       static constexpr const GLenum PROXY_TEXTURE_2D_ARRAY = 0x8C1B;
+       static constexpr const GLenum TEXTURE_BINDING_1D_ARRAY = 0x8C1C;
+       static constexpr const GLenum TEXTURE_BINDING_2D_ARRAY = 0x8C1D;
+       static constexpr const GLenum R11F_G11F_B10F = 0x8C3A;
+       static constexpr const GLenum UNSIGNED_INT_10F_11F_11F_REV = 0x8C3B;
+       static constexpr const GLenum RGB9_E5 = 0x8C3D;
+       static constexpr const GLenum UNSIGNED_INT_5_9_9_9_REV = 0x8C3E;
+       static constexpr const GLenum TEXTURE_SHARED_SIZE = 0x8C3F;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH = 0x8C76;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_MODE = 0x8C7F;
+       static constexpr const GLenum MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS = 0x8C80;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_VARYINGS = 0x8C83;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_START = 0x8C84;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_SIZE = 0x8C85;
+       static constexpr const GLenum PRIMITIVES_GENERATED = 0x8C87;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN = 0x8C88;
+       static constexpr const GLenum RASTERIZER_DISCARD = 0x8C89;
+       static constexpr const GLenum MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS = 0x8C8A;
+       static constexpr const GLenum MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS = 0x8C8B;
+       static constexpr const GLenum INTERLEAVED_ATTRIBS = 0x8C8C;
+       static constexpr const GLenum SEPARATE_ATTRIBS = 0x8C8D;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER = 0x8C8E;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_BINDING = 0x8C8F;
+       static constexpr const GLenum RGBA32UI = 0x8D70;
+       static constexpr const GLenum RGB32UI = 0x8D71;
+       static constexpr const GLenum RGBA16UI = 0x8D76;
+       static constexpr const GLenum RGB16UI = 0x8D77;
+       static constexpr const GLenum RGBA8UI = 0x8D7C;
+       static constexpr const GLenum RGB8UI = 0x8D7D;
+       static constexpr const GLenum RGBA32I = 0x8D82;
+       static constexpr const GLenum RGB32I = 0x8D83;
+       static constexpr const GLenum RGBA16I = 0x8D88;
+       static constexpr const GLenum RGB16I = 0x8D89;
+       static constexpr const GLenum RGBA8I = 0x8D8E;
+       static constexpr const GLenum RGB8I = 0x8D8F;
+       static constexpr const GLenum RED_INTEGER = 0x8D94;
+       static constexpr const GLenum GREEN_INTEGER = 0x8D95;
+       static constexpr const GLenum BLUE_INTEGER = 0x8D96;
+       static constexpr const GLenum RGB_INTEGER = 0x8D98;
+       static constexpr const GLenum RGBA_INTEGER = 0x8D99;
+       static constexpr const GLenum BGR_INTEGER = 0x8D9A;
+       static constexpr const GLenum BGRA_INTEGER = 0x8D9B;
+       static constexpr const GLenum SAMPLER_1D_ARRAY = 0x8DC0;
+       static constexpr const GLenum SAMPLER_2D_ARRAY = 0x8DC1;
+       static constexpr const GLenum SAMPLER_1D_ARRAY_SHADOW = 0x8DC3;
+       static constexpr const GLenum SAMPLER_2D_ARRAY_SHADOW = 0x8DC4;
+       static constexpr const GLenum SAMPLER_CUBE_SHADOW = 0x8DC5;
+       static constexpr const GLenum UNSIGNED_INT_VEC2 = 0x8DC6;
+       static constexpr const GLenum UNSIGNED_INT_VEC3 = 0x8DC7;
+       static constexpr const GLenum UNSIGNED_INT_VEC4 = 0x8DC8;
+       static constexpr const GLenum INT_SAMPLER_1D = 0x8DC9;
+       static constexpr const GLenum INT_SAMPLER_2D = 0x8DCA;
+       static constexpr const GLenum INT_SAMPLER_3D = 0x8DCB;
+       static constexpr const GLenum INT_SAMPLER_CUBE = 0x8DCC;
+       static constexpr const GLenum INT_SAMPLER_1D_ARRAY = 0x8DCE;
+       static constexpr const GLenum INT_SAMPLER_2D_ARRAY = 0x8DCF;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_1D = 0x8DD1;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_2D = 0x8DD2;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_3D = 0x8DD3;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_CUBE = 0x8DD4;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_1D_ARRAY = 0x8DD6;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_2D_ARRAY = 0x8DD7;
+       static constexpr const GLenum QUERY_WAIT = 0x8E13;
+       static constexpr const GLenum QUERY_NO_WAIT = 0x8E14;
+       static constexpr const GLenum QUERY_BY_REGION_WAIT = 0x8E15;
+       static constexpr const GLenum QUERY_BY_REGION_NO_WAIT = 0x8E16;
+       static constexpr const GLenum BUFFER_ACCESS_FLAGS = 0x911F;
+       static constexpr const GLenum BUFFER_MAP_LENGTH = 0x9120;
+       static constexpr const GLenum BUFFER_MAP_OFFSET = 0x9121;
+       static constexpr const GLenum DEPTH_COMPONENT32F = 0x8CAC;
+       static constexpr const GLenum DEPTH32F_STENCIL8 = 0x8CAD;
+       static constexpr const GLenum FLOAT_32_UNSIGNED_INT_24_8_REV = 0x8DAD;
+       static constexpr const GLenum INVALID_FRAMEBUFFER_OPERATION = 0x0506;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING = 0x8210;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE = 0x8211;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_RED_SIZE = 0x8212;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_GREEN_SIZE = 0x8213;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_BLUE_SIZE = 0x8214;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE = 0x8215;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE = 0x8216;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE = 0x8217;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT = 0x8218;
+       static constexpr const GLenum FRAMEBUFFER_UNDEFINED = 0x8219;
+       static constexpr const GLenum DEPTH_STENCIL_ATTACHMENT = 0x821A;
+       static constexpr const GLenum MAX_RENDERBUFFER_SIZE = 0x84E8;
+       static constexpr const GLenum DEPTH_STENCIL = 0x84F9;
+       static constexpr const GLenum UNSIGNED_INT_24_8 = 0x84FA;
+       static constexpr const GLenum DEPTH24_STENCIL8 = 0x88F0;
+       static constexpr const GLenum TEXTURE_STENCIL_SIZE = 0x88F1;
+       static constexpr const GLenum TEXTURE_RED_TYPE = 0x8C10;
+       static constexpr const GLenum TEXTURE_GREEN_TYPE = 0x8C11;
+       static constexpr const GLenum TEXTURE_BLUE_TYPE = 0x8C12;
+       static constexpr const GLenum TEXTURE_ALPHA_TYPE = 0x8C13;
+       static constexpr const GLenum TEXTURE_DEPTH_TYPE = 0x8C16;
+       static constexpr const GLenum UNSIGNED_NORMALIZED = 0x8C17;
+       static constexpr const GLenum FRAMEBUFFER_BINDING = 0x8CA6;
+       static constexpr const GLenum DRAW_FRAMEBUFFER_BINDING = 0x8CA6;
+       static constexpr const GLenum RENDERBUFFER_BINDING = 0x8CA7;
+       static constexpr const GLenum READ_FRAMEBUFFER = 0x8CA8;
+       static constexpr const GLenum DRAW_FRAMEBUFFER = 0x8CA9;
+       static constexpr const GLenum READ_FRAMEBUFFER_BINDING = 0x8CAA;
+       static constexpr const GLenum RENDERBUFFER_SAMPLES = 0x8CAB;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE = 0x8CD0;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_OBJECT_NAME = 0x8CD1;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL = 0x8CD2;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE = 0x8CD3;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER = 0x8CD4;
+       static constexpr const GLenum FRAMEBUFFER_COMPLETE = 0x8CD5;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_ATTACHMENT = 0x8CD6;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT = 0x8CD7;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER = 0x8CDB;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_READ_BUFFER = 0x8CDC;
+       static constexpr const GLenum FRAMEBUFFER_UNSUPPORTED = 0x8CDD;
+       static constexpr const GLenum MAX_COLOR_ATTACHMENTS = 0x8CDF;
+       static constexpr const GLenum COLOR_ATTACHMENT0 = 0x8CE0;
+       static constexpr const GLenum COLOR_ATTACHMENT1 = 0x8CE1;
+       static constexpr const GLenum COLOR_ATTACHMENT2 = 0x8CE2;
+       static constexpr const GLenum COLOR_ATTACHMENT3 = 0x8CE3;
+       static constexpr const GLenum COLOR_ATTACHMENT4 = 0x8CE4;
+       static constexpr const GLenum COLOR_ATTACHMENT5 = 0x8CE5;
+       static constexpr const GLenum COLOR_ATTACHMENT6 = 0x8CE6;
+       static constexpr const GLenum COLOR_ATTACHMENT7 = 0x8CE7;
+       static constexpr const GLenum COLOR_ATTACHMENT8 = 0x8CE8;
+       static constexpr const GLenum COLOR_ATTACHMENT9 = 0x8CE9;
+       static constexpr const GLenum COLOR_ATTACHMENT10 = 0x8CEA;
+       static constexpr const GLenum COLOR_ATTACHMENT11 = 0x8CEB;
+       static constexpr const GLenum COLOR_ATTACHMENT12 = 0x8CEC;
+       static constexpr const GLenum COLOR_ATTACHMENT13 = 0x8CED;
+       static constexpr const GLenum COLOR_ATTACHMENT14 = 0x8CEE;
+       static constexpr const GLenum COLOR_ATTACHMENT15 = 0x8CEF;
+       static constexpr const GLenum COLOR_ATTACHMENT16 = 0x8CF0;
+       static constexpr const GLenum COLOR_ATTACHMENT17 = 0x8CF1;
+       static constexpr const GLenum COLOR_ATTACHMENT18 = 0x8CF2;
+       static constexpr const GLenum COLOR_ATTACHMENT19 = 0x8CF3;
+       static constexpr const GLenum COLOR_ATTACHMENT20 = 0x8CF4;
+       static constexpr const GLenum COLOR_ATTACHMENT21 = 0x8CF5;
+       static constexpr const GLenum COLOR_ATTACHMENT22 = 0x8CF6;
+       static constexpr const GLenum COLOR_ATTACHMENT23 = 0x8CF7;
+       static constexpr const GLenum COLOR_ATTACHMENT24 = 0x8CF8;
+       static constexpr const GLenum COLOR_ATTACHMENT25 = 0x8CF9;
+       static constexpr const GLenum COLOR_ATTACHMENT26 = 0x8CFA;
+       static constexpr const GLenum COLOR_ATTACHMENT27 = 0x8CFB;
+       static constexpr const GLenum COLOR_ATTACHMENT28 = 0x8CFC;
+       static constexpr const GLenum COLOR_ATTACHMENT29 = 0x8CFD;
+       static constexpr const GLenum COLOR_ATTACHMENT30 = 0x8CFE;
+       static constexpr const GLenum COLOR_ATTACHMENT31 = 0x8CFF;
+       static constexpr const GLenum DEPTH_ATTACHMENT = 0x8D00;
+       static constexpr const GLenum STENCIL_ATTACHMENT = 0x8D20;
+       static constexpr const GLenum FRAMEBUFFER = 0x8D40;
+       static constexpr const GLenum RENDERBUFFER = 0x8D41;
+       static constexpr const GLenum RENDERBUFFER_WIDTH = 0x8D42;
+       static constexpr const GLenum RENDERBUFFER_HEIGHT = 0x8D43;
+       static constexpr const GLenum RENDERBUFFER_INTERNAL_FORMAT = 0x8D44;
+       static constexpr const GLenum STENCIL_INDEX1 = 0x8D46;
+       static constexpr const GLenum STENCIL_INDEX4 = 0x8D47;
+       static constexpr const GLenum STENCIL_INDEX8 = 0x8D48;
+       static constexpr const GLenum STENCIL_INDEX16 = 0x8D49;
+       static constexpr const GLenum RENDERBUFFER_RED_SIZE = 0x8D50;
+       static constexpr const GLenum RENDERBUFFER_GREEN_SIZE = 0x8D51;
+       static constexpr const GLenum RENDERBUFFER_BLUE_SIZE = 0x8D52;
+       static constexpr const GLenum RENDERBUFFER_ALPHA_SIZE = 0x8D53;
+       static constexpr const GLenum RENDERBUFFER_DEPTH_SIZE = 0x8D54;
+       static constexpr const GLenum RENDERBUFFER_STENCIL_SIZE = 0x8D55;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_MULTISAMPLE = 0x8D56;
+       static constexpr const GLenum MAX_SAMPLES = 0x8D57;
+       static constexpr const GLenum FRAMEBUFFER_SRGB = 0x8DB9;
+       static constexpr const GLenum HALF_FLOAT = 0x140B;
+       static constexpr const GLenum MAP_READ_BIT = 0x0001;
+       static constexpr const GLenum MAP_WRITE_BIT = 0x0002;
+       static constexpr const GLenum MAP_INVALIDATE_RANGE_BIT = 0x0004;
+       static constexpr const GLenum MAP_INVALIDATE_BUFFER_BIT = 0x0008;
+       static constexpr const GLenum MAP_FLUSH_EXPLICIT_BIT = 0x0010;
+       static constexpr const GLenum MAP_UNSYNCHRONIZED_BIT = 0x0020;
+       static constexpr const GLenum COMPRESSED_RED_RGTC1 = 0x8DBB;
+       static constexpr const GLenum COMPRESSED_SIGNED_RED_RGTC1 = 0x8DBC;
+       static constexpr const GLenum COMPRESSED_RG_RGTC2 = 0x8DBD;
+       static constexpr const GLenum COMPRESSED_SIGNED_RG_RGTC2 = 0x8DBE;
+       static constexpr const GLenum RG = 0x8227;
+       static constexpr const GLenum RG_INTEGER = 0x8228;
+       static constexpr const GLenum R8 = 0x8229;
+       static constexpr const GLenum R16 = 0x822A;
+       static constexpr const GLenum RG8 = 0x822B;
+       static constexpr const GLenum RG16 = 0x822C;
+       static constexpr const GLenum R16F = 0x822D;
+       static constexpr const GLenum R32F = 0x822E;
+       static constexpr const GLenum RG16F = 0x822F;
+       static constexpr const GLenum RG32F = 0x8230;
+       static constexpr const GLenum R8I = 0x8231;
+       static constexpr const GLenum R8UI = 0x8232;
+       static constexpr const GLenum R16I = 0x8233;
+       static constexpr const GLenum R16UI = 0x8234;
+       static constexpr const GLenum R32I = 0x8235;
+       static constexpr const GLenum R32UI = 0x8236;
+       static constexpr const GLenum RG8I = 0x8237;
+       static constexpr const GLenum RG8UI = 0x8238;
+       static constexpr const GLenum RG16I = 0x8239;
+       static constexpr const GLenum RG16UI = 0x823A;
+       static constexpr const GLenum RG32I = 0x823B;
+       static constexpr const GLenum RG32UI = 0x823C;
+       static constexpr const GLenum VERTEX_ARRAY_BINDING = 0x85B5;
+       static constexpr const GLenum SAMPLER_2D_RECT = 0x8B63;
+       static constexpr const GLenum SAMPLER_2D_RECT_SHADOW = 0x8B64;
+       static constexpr const GLenum SAMPLER_BUFFER = 0x8DC2;
+       static constexpr const GLenum INT_SAMPLER_2D_RECT = 0x8DCD;
+       static constexpr const GLenum INT_SAMPLER_BUFFER = 0x8DD0;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_2D_RECT = 0x8DD5;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_BUFFER = 0x8DD8;
+       static constexpr const GLenum TEXTURE_BUFFER = 0x8C2A;
+       static constexpr const GLenum MAX_TEXTURE_BUFFER_SIZE = 0x8C2B;
+       static constexpr const GLenum TEXTURE_BINDING_BUFFER = 0x8C2C;
+       static constexpr const GLenum TEXTURE_BUFFER_DATA_STORE_BINDING = 0x8C2D;
+       static constexpr const GLenum TEXTURE_RECTANGLE = 0x84F5;
+       static constexpr const GLenum TEXTURE_BINDING_RECTANGLE = 0x84F6;
+       static constexpr const GLenum PROXY_TEXTURE_RECTANGLE = 0x84F7;
+       static constexpr const GLenum MAX_RECTANGLE_TEXTURE_SIZE = 0x84F8;
+       static constexpr const GLenum R8_SNORM = 0x8F94;
+       static constexpr const GLenum RG8_SNORM = 0x8F95;
+       static constexpr const GLenum RGB8_SNORM = 0x8F96;
+       static constexpr const GLenum RGBA8_SNORM = 0x8F97;
+       static constexpr const GLenum R16_SNORM = 0x8F98;
+       static constexpr const GLenum RG16_SNORM = 0x8F99;
+       static constexpr const GLenum RGB16_SNORM = 0x8F9A;
+       static constexpr const GLenum RGBA16_SNORM = 0x8F9B;
+       static constexpr const GLenum SIGNED_NORMALIZED = 0x8F9C;
+       static constexpr const GLenum PRIMITIVE_RESTART = 0x8F9D;
+       static constexpr const GLenum PRIMITIVE_RESTART_INDEX = 0x8F9E;
+       static constexpr const GLenum COPY_READ_BUFFER = 0x8F36;
+       static constexpr const GLenum COPY_WRITE_BUFFER = 0x8F37;
+       static constexpr const GLenum UNIFORM_BUFFER = 0x8A11;
+       static constexpr const GLenum UNIFORM_BUFFER_BINDING = 0x8A28;
+       static constexpr const GLenum UNIFORM_BUFFER_START = 0x8A29;
+       static constexpr const GLenum UNIFORM_BUFFER_SIZE = 0x8A2A;
+       static constexpr const GLenum MAX_VERTEX_UNIFORM_BLOCKS = 0x8A2B;
+       static constexpr const GLenum MAX_GEOMETRY_UNIFORM_BLOCKS = 0x8A2C;
+       static constexpr const GLenum MAX_FRAGMENT_UNIFORM_BLOCKS = 0x8A2D;
+       static constexpr const GLenum MAX_COMBINED_UNIFORM_BLOCKS = 0x8A2E;
+       static constexpr const GLenum MAX_UNIFORM_BUFFER_BINDINGS = 0x8A2F;
+       static constexpr const GLenum MAX_UNIFORM_BLOCK_SIZE = 0x8A30;
+       static constexpr const GLenum MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS = 0x8A31;
+       static constexpr const GLenum MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS = 0x8A32;
+       static constexpr const GLenum MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS = 0x8A33;
+       static constexpr const GLenum UNIFORM_BUFFER_OFFSET_ALIGNMENT = 0x8A34;
+       static constexpr const GLenum ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH = 0x8A35;
+       static constexpr const GLenum ACTIVE_UNIFORM_BLOCKS = 0x8A36;
+       static constexpr const GLenum UNIFORM_TYPE = 0x8A37;
+       static constexpr const GLenum UNIFORM_SIZE = 0x8A38;
+       static constexpr const GLenum UNIFORM_NAME_LENGTH = 0x8A39;
+       static constexpr const GLenum UNIFORM_BLOCK_INDEX = 0x8A3A;
+       static constexpr const GLenum UNIFORM_OFFSET = 0x8A3B;
+       static constexpr const GLenum UNIFORM_ARRAY_STRIDE = 0x8A3C;
+       static constexpr const GLenum UNIFORM_MATRIX_STRIDE = 0x8A3D;
+       static constexpr const GLenum UNIFORM_IS_ROW_MAJOR = 0x8A3E;
+       static constexpr const GLenum UNIFORM_BLOCK_BINDING = 0x8A3F;
+       static constexpr const GLenum UNIFORM_BLOCK_DATA_SIZE = 0x8A40;
+       static constexpr const GLenum UNIFORM_BLOCK_NAME_LENGTH = 0x8A41;
+       static constexpr const GLenum UNIFORM_BLOCK_ACTIVE_UNIFORMS = 0x8A42;
+       static constexpr const GLenum UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES = 0x8A43;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER = 0x8A44;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER = 0x8A45;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER = 0x8A46;
+       static constexpr const GLenum INVALID_INDEX = 0xFFFFFFFFu;
+       static constexpr const GLenum CONTEXT_CORE_PROFILE_BIT = 0x00000001;
+       static constexpr const GLenum CONTEXT_COMPATIBILITY_PROFILE_BIT = 0x00000002;
+       static constexpr const GLenum LINES_ADJACENCY = 0x000A;
+       static constexpr const GLenum LINE_STRIP_ADJACENCY = 0x000B;
+       static constexpr const GLenum TRIANGLES_ADJACENCY = 0x000C;
+       static constexpr const GLenum TRIANGLE_STRIP_ADJACENCY = 0x000D;
+       static constexpr const GLenum PROGRAM_POINT_SIZE = 0x8642;
+       static constexpr const GLenum MAX_GEOMETRY_TEXTURE_IMAGE_UNITS = 0x8C29;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_LAYERED = 0x8DA7;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS = 0x8DA8;
+       static constexpr const GLenum GEOMETRY_SHADER = 0x8DD9;
+       static constexpr const GLenum GEOMETRY_VERTICES_OUT = 0x8916;
+       static constexpr const GLenum GEOMETRY_INPUT_TYPE = 0x8917;
+       static constexpr const GLenum GEOMETRY_OUTPUT_TYPE = 0x8918;
+       static constexpr const GLenum MAX_GEOMETRY_UNIFORM_COMPONENTS = 0x8DDF;
+       static constexpr const GLenum MAX_GEOMETRY_OUTPUT_VERTICES = 0x8DE0;
+       static constexpr const GLenum MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS = 0x8DE1;
+       static constexpr const GLenum MAX_VERTEX_OUTPUT_COMPONENTS = 0x9122;
+       static constexpr const GLenum MAX_GEOMETRY_INPUT_COMPONENTS = 0x9123;
+       static constexpr const GLenum MAX_GEOMETRY_OUTPUT_COMPONENTS = 0x9124;
+       static constexpr const GLenum MAX_FRAGMENT_INPUT_COMPONENTS = 0x9125;
+       static constexpr const GLenum CONTEXT_PROFILE_MASK = 0x9126;
+       static constexpr const GLenum DEPTH_CLAMP = 0x864F;
+       static constexpr const GLenum QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION = 0x8E4C;
+       static constexpr const GLenum FIRST_VERTEX_CONVENTION = 0x8E4D;
+       static constexpr const GLenum LAST_VERTEX_CONVENTION = 0x8E4E;
+       static constexpr const GLenum PROVOKING_VERTEX = 0x8E4F;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_SEAMLESS = 0x884F;
+       static constexpr const GLenum MAX_SERVER_WAIT_TIMEOUT = 0x9111;
+       static constexpr const GLenum OBJECT_TYPE = 0x9112;
+       static constexpr const GLenum SYNC_CONDITION = 0x9113;
+       static constexpr const GLenum SYNC_STATUS = 0x9114;
+       static constexpr const GLenum SYNC_FLAGS = 0x9115;
+       static constexpr const GLenum SYNC_FENCE = 0x9116;
+       static constexpr const GLenum SYNC_GPU_COMMANDS_COMPLETE = 0x9117;
+       static constexpr const GLenum UNSIGNALED = 0x9118;
+       static constexpr const GLenum SIGNALED = 0x9119;
+       static constexpr const GLenum ALREADY_SIGNALED = 0x911A;
+       static constexpr const GLenum TIMEOUT_EXPIRED = 0x911B;
+       static constexpr const GLenum CONDITION_SATISFIED = 0x911C;
+       static constexpr const GLenum _WAIT_FAILED = 0x911D;
+       static constexpr const GLuint64 TIMEOUT_IGNORED = 0xFFFFFFFFFFFFFFFFull;
+       static constexpr const GLenum SYNC_FLUSH_COMMANDS_BIT = 0x00000001;
+       static constexpr const GLenum SAMPLE_POSITION = 0x8E50;
+       static constexpr const GLenum SAMPLE_MASK = 0x8E51;
+       static constexpr const GLenum SAMPLE_MASK_VALUE = 0x8E52;
+       static constexpr const GLenum MAX_SAMPLE_MASK_WORDS = 0x8E59;
+       static constexpr const GLenum TEXTURE_2D_MULTISAMPLE = 0x9100;
+       static constexpr const GLenum PROXY_TEXTURE_2D_MULTISAMPLE = 0x9101;
+       static constexpr const GLenum TEXTURE_2D_MULTISAMPLE_ARRAY = 0x9102;
+       static constexpr const GLenum PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY = 0x9103;
+       static constexpr const GLenum TEXTURE_BINDING_2D_MULTISAMPLE = 0x9104;
+       static constexpr const GLenum TEXTURE_BINDING_2D_MULTISAMPLE_ARRAY = 0x9105;
+       static constexpr const GLenum TEXTURE_SAMPLES = 0x9106;
+       static constexpr const GLenum TEXTURE_FIXED_SAMPLE_LOCATIONS = 0x9107;
+       static constexpr const GLenum SAMPLER_2D_MULTISAMPLE = 0x9108;
+       static constexpr const GLenum INT_SAMPLER_2D_MULTISAMPLE = 0x9109;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE = 0x910A;
+       static constexpr const GLenum SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910B;
+       static constexpr const GLenum INT_SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910C;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY = 0x910D;
+       static constexpr const GLenum MAX_COLOR_TEXTURE_SAMPLES = 0x910E;
+       static constexpr const GLenum MAX_DEPTH_TEXTURE_SAMPLES = 0x910F;
+       static constexpr const GLenum MAX_INTEGER_SAMPLES = 0x9110;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_DIVISOR = 0x88FE;
+       static constexpr const GLenum SRC1_COLOR = 0x88F9;
+       static constexpr const GLenum ONE_MINUS_SRC1_COLOR = 0x88FA;
+       static constexpr const GLenum ONE_MINUS_SRC1_ALPHA = 0x88FB;
+       static constexpr const GLenum MAX_DUAL_SOURCE_DRAW_BUFFERS = 0x88FC;
+       static constexpr const GLenum ANY_SAMPLES_PASSED = 0x8C2F;
+       static constexpr const GLenum SAMPLER_BINDING = 0x8919;
+       static constexpr const GLenum RGB10_A2UI = 0x906F;
+       static constexpr const GLenum TEXTURE_SWIZZLE_R = 0x8E42;
+       static constexpr const GLenum TEXTURE_SWIZZLE_G = 0x8E43;
+       static constexpr const GLenum TEXTURE_SWIZZLE_B = 0x8E44;
+       static constexpr const GLenum TEXTURE_SWIZZLE_A = 0x8E45;
+       static constexpr const GLenum TEXTURE_SWIZZLE_RGBA = 0x8E46;
+       static constexpr const GLenum TIME_ELAPSED = 0x88BF;
+       static constexpr const GLenum TIMESTAMP = 0x8E28;
+       static constexpr const GLenum INT_2_10_10_10_REV = 0x8D9F;
+       static constexpr const GLenum SAMPLE_SHADING = 0x8C36;
+       static constexpr const GLenum MIN_SAMPLE_SHADING_VALUE = 0x8C37;
+       static constexpr const GLenum MIN_PROGRAM_TEXTURE_GATHER_OFFSET = 0x8E5E;
+       static constexpr const GLenum MAX_PROGRAM_TEXTURE_GATHER_OFFSET = 0x8E5F;
+       static constexpr const GLenum TEXTURE_CUBE_MAP_ARRAY = 0x9009;
+       static constexpr const GLenum TEXTURE_BINDING_CUBE_MAP_ARRAY = 0x900A;
+       static constexpr const GLenum PROXY_TEXTURE_CUBE_MAP_ARRAY = 0x900B;
+       static constexpr const GLenum SAMPLER_CUBE_MAP_ARRAY = 0x900C;
+       static constexpr const GLenum SAMPLER_CUBE_MAP_ARRAY_SHADOW = 0x900D;
+       static constexpr const GLenum INT_SAMPLER_CUBE_MAP_ARRAY = 0x900E;
+       static constexpr const GLenum UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY = 0x900F;
+       static constexpr const GLenum DRAW_INDIRECT_BUFFER = 0x8F3F;
+       static constexpr const GLenum DRAW_INDIRECT_BUFFER_BINDING = 0x8F43;
+       static constexpr const GLenum GEOMETRY_SHADER_INVOCATIONS = 0x887F;
+       static constexpr const GLenum MAX_GEOMETRY_SHADER_INVOCATIONS = 0x8E5A;
+       static constexpr const GLenum MIN_FRAGMENT_INTERPOLATION_OFFSET = 0x8E5B;
+       static constexpr const GLenum MAX_FRAGMENT_INTERPOLATION_OFFSET = 0x8E5C;
+       static constexpr const GLenum FRAGMENT_INTERPOLATION_OFFSET_BITS = 0x8E5D;
+       static constexpr const GLenum MAX_VERTEX_STREAMS = 0x8E71;
+       static constexpr const GLenum DOUBLE_VEC2 = 0x8FFC;
+       static constexpr const GLenum DOUBLE_VEC3 = 0x8FFD;
+       static constexpr const GLenum DOUBLE_VEC4 = 0x8FFE;
+       static constexpr const GLenum DOUBLE_MAT2 = 0x8F46;
+       static constexpr const GLenum DOUBLE_MAT3 = 0x8F47;
+       static constexpr const GLenum DOUBLE_MAT4 = 0x8F48;
+       static constexpr const GLenum DOUBLE_MAT2x3 = 0x8F49;
+       static constexpr const GLenum DOUBLE_MAT2x4 = 0x8F4A;
+       static constexpr const GLenum DOUBLE_MAT3x2 = 0x8F4B;
+       static constexpr const GLenum DOUBLE_MAT3x4 = 0x8F4C;
+       static constexpr const GLenum DOUBLE_MAT4x2 = 0x8F4D;
+       static constexpr const GLenum DOUBLE_MAT4x3 = 0x8F4E;
+       static constexpr const GLenum ACTIVE_SUBROUTINES = 0x8DE5;
+       static constexpr const GLenum ACTIVE_SUBROUTINE_UNIFORMS = 0x8DE6;
+       static constexpr const GLenum ACTIVE_SUBROUTINE_UNIFORM_LOCATIONS = 0x8E47;
+       static constexpr const GLenum ACTIVE_SUBROUTINE_MAX_LENGTH = 0x8E48;
+       static constexpr const GLenum ACTIVE_SUBROUTINE_UNIFORM_MAX_LENGTH = 0x8E49;
+       static constexpr const GLenum MAX_SUBROUTINES = 0x8DE7;
+       static constexpr const GLenum MAX_SUBROUTINE_UNIFORM_LOCATIONS = 0x8DE8;
+       static constexpr const GLenum NUM_COMPATIBLE_SUBROUTINES = 0x8E4A;
+       static constexpr const GLenum COMPATIBLE_SUBROUTINES = 0x8E4B;
+       static constexpr const GLenum PATCHES = 0x000E;
+       static constexpr const GLenum PATCH_VERTICES = 0x8E72;
+       static constexpr const GLenum PATCH_DEFAULT_INNER_LEVEL = 0x8E73;
+       static constexpr const GLenum PATCH_DEFAULT_OUTER_LEVEL = 0x8E74;
+       static constexpr const GLenum TESS_CONTROL_OUTPUT_VERTICES = 0x8E75;
+       static constexpr const GLenum TESS_GEN_MODE = 0x8E76;
+       static constexpr const GLenum TESS_GEN_SPACING = 0x8E77;
+       static constexpr const GLenum TESS_GEN_VERTEX_ORDER = 0x8E78;
+       static constexpr const GLenum TESS_GEN_POINT_MODE = 0x8E79;
+       static constexpr const GLenum ISOLINES = 0x8E7A;
+       static constexpr const GLenum FRACTIONAL_ODD = 0x8E7B;
+       static constexpr const GLenum FRACTIONAL_EVEN = 0x8E7C;
+       static constexpr const GLenum MAX_PATCH_VERTICES = 0x8E7D;
+       static constexpr const GLenum MAX_TESS_GEN_LEVEL = 0x8E7E;
+       static constexpr const GLenum MAX_TESS_CONTROL_UNIFORM_COMPONENTS = 0x8E7F;
+       static constexpr const GLenum MAX_TESS_EVALUATION_UNIFORM_COMPONENTS = 0x8E80;
+       static constexpr const GLenum MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS = 0x8E81;
+       static constexpr const GLenum MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS = 0x8E82;
+       static constexpr const GLenum MAX_TESS_CONTROL_OUTPUT_COMPONENTS = 0x8E83;
+       static constexpr const GLenum MAX_TESS_PATCH_COMPONENTS = 0x8E84;
+       static constexpr const GLenum MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS = 0x8E85;
+       static constexpr const GLenum MAX_TESS_EVALUATION_OUTPUT_COMPONENTS = 0x8E86;
+       static constexpr const GLenum MAX_TESS_CONTROL_UNIFORM_BLOCKS = 0x8E89;
+       static constexpr const GLenum MAX_TESS_EVALUATION_UNIFORM_BLOCKS = 0x8E8A;
+       static constexpr const GLenum MAX_TESS_CONTROL_INPUT_COMPONENTS = 0x886C;
+       static constexpr const GLenum MAX_TESS_EVALUATION_INPUT_COMPONENTS = 0x886D;
+       static constexpr const GLenum MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS = 0x8E1E;
+       static constexpr const GLenum MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS = 0x8E1F;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_TESS_CONTROL_SHADER = 0x84F0;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_TESS_EVALUATION_SHADER = 0x84F1;
+       static constexpr const GLenum TESS_EVALUATION_SHADER = 0x8E87;
+       static constexpr const GLenum TESS_CONTROL_SHADER = 0x8E88;
+       static constexpr const GLenum TRANSFORM_FEEDBACK = 0x8E22;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_PAUSED = 0x8E23;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_ACTIVE = 0x8E24;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BINDING = 0x8E25;
+       static constexpr const GLenum MAX_TRANSFORM_FEEDBACK_BUFFERS = 0x8E70;
+       static constexpr const GLenum FIXED = 0x140C;
+       static constexpr const GLenum IMPLEMENTATION_COLOR_READ_TYPE = 0x8B9A;
+       static constexpr const GLenum IMPLEMENTATION_COLOR_READ_FORMAT = 0x8B9B;
+       static constexpr const GLenum LOW_FLOAT = 0x8DF0;
+       static constexpr const GLenum MEDIUM_FLOAT = 0x8DF1;
+       static constexpr const GLenum HIGH_FLOAT = 0x8DF2;
+       static constexpr const GLenum LOW_INT = 0x8DF3;
+       static constexpr const GLenum MEDIUM_INT = 0x8DF4;
+       static constexpr const GLenum HIGH_INT = 0x8DF5;
+       static constexpr const GLenum SHADER_COMPILER = 0x8DFA;
+       static constexpr const GLenum SHADER_BINARY_FORMATS = 0x8DF8;
+       static constexpr const GLenum NUM_SHADER_BINARY_FORMATS = 0x8DF9;
+       static constexpr const GLenum MAX_VERTEX_UNIFORM_VECTORS = 0x8DFB;
+       static constexpr const GLenum MAX_VARYING_VECTORS = 0x8DFC;
+       static constexpr const GLenum MAX_FRAGMENT_UNIFORM_VECTORS = 0x8DFD;
+       static constexpr const GLenum RGB565 = 0x8D62;
+       static constexpr const GLenum PROGRAM_BINARY_RETRIEVABLE_HINT = 0x8257;
+       static constexpr const GLenum PROGRAM_BINARY_LENGTH = 0x8741;
+       static constexpr const GLenum NUM_PROGRAM_BINARY_FORMATS = 0x87FE;
+       static constexpr const GLenum PROGRAM_BINARY_FORMATS = 0x87FF;
+       static constexpr const GLenum VERTEX_SHADER_BIT = 0x00000001;
+       static constexpr const GLenum FRAGMENT_SHADER_BIT = 0x00000002;
+       static constexpr const GLenum GEOMETRY_SHADER_BIT = 0x00000004;
+       static constexpr const GLenum TESS_CONTROL_SHADER_BIT = 0x00000008;
+       static constexpr const GLenum TESS_EVALUATION_SHADER_BIT = 0x00000010;
+       static constexpr const GLenum ALL_SHADER_BITS = 0xFFFFFFFF;
+       static constexpr const GLenum PROGRAM_SEPARABLE = 0x8258;
+       static constexpr const GLenum ACTIVE_PROGRAM = 0x8259;
+       static constexpr const GLenum PROGRAM_PIPELINE_BINDING = 0x825A;
+       static constexpr const GLenum MAX_VIEWPORTS = 0x825B;
+       static constexpr const GLenum VIEWPORT_SUBPIXEL_BITS = 0x825C;
+       static constexpr const GLenum VIEWPORT_BOUNDS_RANGE = 0x825D;
+       static constexpr const GLenum LAYER_PROVOKING_VERTEX = 0x825E;
+       static constexpr const GLenum VIEWPORT_INDEX_PROVOKING_VERTEX = 0x825F;
+       static constexpr const GLenum UNDEFINED_VERTEX = 0x8260;
+       static constexpr const GLenum COPY_READ_BUFFER_BINDING = 0x8F36;
+       static constexpr const GLenum COPY_WRITE_BUFFER_BINDING = 0x8F37;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_ACTIVE = 0x8E24;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_PAUSED = 0x8E23;
+       static constexpr const GLenum UNPACK_COMPRESSED_BLOCK_WIDTH = 0x9127;
+       static constexpr const GLenum UNPACK_COMPRESSED_BLOCK_HEIGHT = 0x9128;
+       static constexpr const GLenum UNPACK_COMPRESSED_BLOCK_DEPTH = 0x9129;
+       static constexpr const GLenum UNPACK_COMPRESSED_BLOCK_SIZE = 0x912A;
+       static constexpr const GLenum PACK_COMPRESSED_BLOCK_WIDTH = 0x912B;
+       static constexpr const GLenum PACK_COMPRESSED_BLOCK_HEIGHT = 0x912C;
+       static constexpr const GLenum PACK_COMPRESSED_BLOCK_DEPTH = 0x912D;
+       static constexpr const GLenum PACK_COMPRESSED_BLOCK_SIZE = 0x912E;
+       static constexpr const GLenum NUM_SAMPLE_COUNTS = 0x9380;
+       static constexpr const GLenum MIN_MAP_BUFFER_ALIGNMENT = 0x90BC;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER = 0x92C0;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_BINDING = 0x92C1;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_START = 0x92C2;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_SIZE = 0x92C3;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_DATA_SIZE = 0x92C4;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTERS = 0x92C5;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_ACTIVE_ATOMIC_COUNTER_INDICES = 0x92C6;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_VERTEX_SHADER = 0x92C7;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_CONTROL_SHADER = 0x92C8;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_TESS_EVALUATION_SHADER = 0x92C9;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_GEOMETRY_SHADER = 0x92CA;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_FRAGMENT_SHADER = 0x92CB;
+       static constexpr const GLenum MAX_VERTEX_ATOMIC_COUNTER_BUFFERS = 0x92CC;
+       static constexpr const GLenum MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS = 0x92CD;
+       static constexpr const GLenum MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS = 0x92CE;
+       static constexpr const GLenum MAX_GEOMETRY_ATOMIC_COUNTER_BUFFERS = 0x92CF;
+       static constexpr const GLenum MAX_FRAGMENT_ATOMIC_COUNTER_BUFFERS = 0x92D0;
+       static constexpr const GLenum MAX_COMBINED_ATOMIC_COUNTER_BUFFERS = 0x92D1;
+       static constexpr const GLenum MAX_VERTEX_ATOMIC_COUNTERS = 0x92D2;
+       static constexpr const GLenum MAX_TESS_CONTROL_ATOMIC_COUNTERS = 0x92D3;
+       static constexpr const GLenum MAX_TESS_EVALUATION_ATOMIC_COUNTERS = 0x92D4;
+       static constexpr const GLenum MAX_GEOMETRY_ATOMIC_COUNTERS = 0x92D5;
+       static constexpr const GLenum MAX_FRAGMENT_ATOMIC_COUNTERS = 0x92D6;
+       static constexpr const GLenum MAX_COMBINED_ATOMIC_COUNTERS = 0x92D7;
+       static constexpr const GLenum MAX_ATOMIC_COUNTER_BUFFER_SIZE = 0x92D8;
+       static constexpr const GLenum MAX_ATOMIC_COUNTER_BUFFER_BINDINGS = 0x92DC;
+       static constexpr const GLenum ACTIVE_ATOMIC_COUNTER_BUFFERS = 0x92D9;
+       static constexpr const GLenum UNIFORM_ATOMIC_COUNTER_BUFFER_INDEX = 0x92DA;
+       static constexpr const GLenum UNSIGNED_INT_ATOMIC_COUNTER = 0x92DB;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_BARRIER_BIT = 0x00000001;
+       static constexpr const GLenum ELEMENT_ARRAY_BARRIER_BIT = 0x00000002;
+       static constexpr const GLenum UNIFORM_BARRIER_BIT = 0x00000004;
+       static constexpr const GLenum TEXTURE_FETCH_BARRIER_BIT = 0x00000008;
+       static constexpr const GLenum SHADER_IMAGE_ACCESS_BARRIER_BIT = 0x00000020;
+       static constexpr const GLenum COMMAND_BARRIER_BIT = 0x00000040;
+       static constexpr const GLenum PIXEL_BUFFER_BARRIER_BIT = 0x00000080;
+       static constexpr const GLenum TEXTURE_UPDATE_BARRIER_BIT = 0x00000100;
+       static constexpr const GLenum BUFFER_UPDATE_BARRIER_BIT = 0x00000200;
+       static constexpr const GLenum FRAMEBUFFER_BARRIER_BIT = 0x00000400;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BARRIER_BIT = 0x00000800;
+       static constexpr const GLenum ATOMIC_COUNTER_BARRIER_BIT = 0x00001000;
+       static constexpr const GLenum ALL_BARRIER_BITS = 0xFFFFFFFF;
+       static constexpr const GLenum MAX_IMAGE_UNITS = 0x8F38;
+       static constexpr const GLenum MAX_COMBINED_IMAGE_UNITS_AND_FRAGMENT_OUTPUTS = 0x8F39;
+       static constexpr const GLenum IMAGE_BINDING_NAME = 0x8F3A;
+       static constexpr const GLenum IMAGE_BINDING_LEVEL = 0x8F3B;
+       static constexpr const GLenum IMAGE_BINDING_LAYERED = 0x8F3C;
+       static constexpr const GLenum IMAGE_BINDING_LAYER = 0x8F3D;
+       static constexpr const GLenum IMAGE_BINDING_ACCESS = 0x8F3E;
+       static constexpr const GLenum IMAGE_1D = 0x904C;
+       static constexpr const GLenum IMAGE_2D = 0x904D;
+       static constexpr const GLenum IMAGE_3D = 0x904E;
+       static constexpr const GLenum IMAGE_2D_RECT = 0x904F;
+       static constexpr const GLenum IMAGE_CUBE = 0x9050;
+       static constexpr const GLenum IMAGE_BUFFER = 0x9051;
+       static constexpr const GLenum IMAGE_1D_ARRAY = 0x9052;
+       static constexpr const GLenum IMAGE_2D_ARRAY = 0x9053;
+       static constexpr const GLenum IMAGE_CUBE_MAP_ARRAY = 0x9054;
+       static constexpr const GLenum IMAGE_2D_MULTISAMPLE = 0x9055;
+       static constexpr const GLenum IMAGE_2D_MULTISAMPLE_ARRAY = 0x9056;
+       static constexpr const GLenum INT_IMAGE_1D = 0x9057;
+       static constexpr const GLenum INT_IMAGE_2D = 0x9058;
+       static constexpr const GLenum INT_IMAGE_3D = 0x9059;
+       static constexpr const GLenum INT_IMAGE_2D_RECT = 0x905A;
+       static constexpr const GLenum INT_IMAGE_CUBE = 0x905B;
+       static constexpr const GLenum INT_IMAGE_BUFFER = 0x905C;
+       static constexpr const GLenum INT_IMAGE_1D_ARRAY = 0x905D;
+       static constexpr const GLenum INT_IMAGE_2D_ARRAY = 0x905E;
+       static constexpr const GLenum INT_IMAGE_CUBE_MAP_ARRAY = 0x905F;
+       static constexpr const GLenum INT_IMAGE_2D_MULTISAMPLE = 0x9060;
+       static constexpr const GLenum INT_IMAGE_2D_MULTISAMPLE_ARRAY = 0x9061;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_1D = 0x9062;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_2D = 0x9063;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_3D = 0x9064;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_2D_RECT = 0x9065;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_CUBE = 0x9066;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_BUFFER = 0x9067;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_1D_ARRAY = 0x9068;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_2D_ARRAY = 0x9069;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_CUBE_MAP_ARRAY = 0x906A;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_2D_MULTISAMPLE = 0x906B;
+       static constexpr const GLenum UNSIGNED_INT_IMAGE_2D_MULTISAMPLE_ARRAY = 0x906C;
+       static constexpr const GLenum MAX_IMAGE_SAMPLES = 0x906D;
+       static constexpr const GLenum IMAGE_BINDING_FORMAT = 0x906E;
+       static constexpr const GLenum IMAGE_FORMAT_COMPATIBILITY_TYPE = 0x90C7;
+       static constexpr const GLenum IMAGE_FORMAT_COMPATIBILITY_BY_SIZE = 0x90C8;
+       static constexpr const GLenum IMAGE_FORMAT_COMPATIBILITY_BY_CLASS = 0x90C9;
+       static constexpr const GLenum MAX_VERTEX_IMAGE_UNIFORMS = 0x90CA;
+       static constexpr const GLenum MAX_TESS_CONTROL_IMAGE_UNIFORMS = 0x90CB;
+       static constexpr const GLenum MAX_TESS_EVALUATION_IMAGE_UNIFORMS = 0x90CC;
+       static constexpr const GLenum MAX_GEOMETRY_IMAGE_UNIFORMS = 0x90CD;
+       static constexpr const GLenum MAX_FRAGMENT_IMAGE_UNIFORMS = 0x90CE;
+       static constexpr const GLenum MAX_COMBINED_IMAGE_UNIFORMS = 0x90CF;
+       static constexpr const GLenum COMPRESSED_RGBA_BPTC_UNORM = 0x8E8C;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_BPTC_UNORM = 0x8E8D;
+       static constexpr const GLenum COMPRESSED_RGB_BPTC_SIGNED_FLOAT = 0x8E8E;
+       static constexpr const GLenum COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT = 0x8E8F;
+       static constexpr const GLenum TEXTURE_IMMUTABLE_FORMAT = 0x912F;
+       static constexpr const GLenum NUM_SHADING_LANGUAGE_VERSIONS = 0x82E9;
+       static constexpr const GLenum VERTEX_ATTRIB_ARRAY_LONG = 0x874E;
+       static constexpr const GLenum COMPRESSED_RGB8_ETC2 = 0x9274;
+       static constexpr const GLenum COMPRESSED_SRGB8_ETC2 = 0x9275;
+       static constexpr const GLenum COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 = 0x9276;
+       static constexpr const GLenum COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2 = 0x9277;
+       static constexpr const GLenum COMPRESSED_RGBA8_ETC2_EAC = 0x9278;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ETC2_EAC = 0x9279;
+       static constexpr const GLenum COMPRESSED_R11_EAC = 0x9270;
+       static constexpr const GLenum COMPRESSED_SIGNED_R11_EAC = 0x9271;
+       static constexpr const GLenum COMPRESSED_RG11_EAC = 0x9272;
+       static constexpr const GLenum COMPRESSED_SIGNED_RG11_EAC = 0x9273;
+       static constexpr const GLenum PRIMITIVE_RESTART_FIXED_INDEX = 0x8D69;
+       static constexpr const GLenum ANY_SAMPLES_PASSED_CONSERVATIVE = 0x8D6A;
+       static constexpr const GLenum MAX_ELEMENT_INDEX = 0x8D6B;
+       static constexpr const GLenum COMPUTE_SHADER = 0x91B9;
+       static constexpr const GLenum MAX_COMPUTE_UNIFORM_BLOCKS = 0x91BB;
+       static constexpr const GLenum MAX_COMPUTE_TEXTURE_IMAGE_UNITS = 0x91BC;
+       static constexpr const GLenum MAX_COMPUTE_IMAGE_UNIFORMS = 0x91BD;
+       static constexpr const GLenum MAX_COMPUTE_SHARED_MEMORY_SIZE = 0x8262;
+       static constexpr const GLenum MAX_COMPUTE_UNIFORM_COMPONENTS = 0x8263;
+       static constexpr const GLenum MAX_COMPUTE_ATOMIC_COUNTER_BUFFERS = 0x8264;
+       static constexpr const GLenum MAX_COMPUTE_ATOMIC_COUNTERS = 0x8265;
+       static constexpr const GLenum MAX_COMBINED_COMPUTE_UNIFORM_COMPONENTS = 0x8266;
+       static constexpr const GLenum MAX_COMPUTE_WORK_GROUP_INVOCATIONS = 0x90EB;
+       static constexpr const GLenum MAX_COMPUTE_WORK_GROUP_COUNT = 0x91BE;
+       static constexpr const GLenum MAX_COMPUTE_WORK_GROUP_SIZE = 0x91BF;
+       static constexpr const GLenum COMPUTE_WORK_GROUP_SIZE = 0x8267;
+       static constexpr const GLenum UNIFORM_BLOCK_REFERENCED_BY_COMPUTE_SHADER = 0x90EC;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_REFERENCED_BY_COMPUTE_SHADER = 0x90ED;
+       static constexpr const GLenum DISPATCH_INDIRECT_BUFFER = 0x90EE;
+       static constexpr const GLenum DISPATCH_INDIRECT_BUFFER_BINDING = 0x90EF;
+       static constexpr const GLenum COMPUTE_SHADER_BIT = 0x00000020;
+       static constexpr const GLenum DEBUG_OUTPUT_SYNCHRONOUS = 0x8242;
+       static constexpr const GLenum DEBUG_NEXT_LOGGED_MESSAGE_LENGTH = 0x8243;
+       static constexpr const GLenum DEBUG_CALLBACK_FUNCTION = 0x8244;
+       static constexpr const GLenum DEBUG_CALLBACK_USER_PARAM = 0x8245;
+       static constexpr const GLenum DEBUG_SOURCE_API = 0x8246;
+       static constexpr const GLenum DEBUG_SOURCE_WINDOW_SYSTEM = 0x8247;
+       static constexpr const GLenum DEBUG_SOURCE_SHADER_COMPILER = 0x8248;
+       static constexpr const GLenum DEBUG_SOURCE_THIRD_PARTY = 0x8249;
+       static constexpr const GLenum DEBUG_SOURCE_APPLICATION = 0x824A;
+       static constexpr const GLenum DEBUG_SOURCE_OTHER = 0x824B;
+       static constexpr const GLenum DEBUG_TYPE_ERROR = 0x824C;
+       static constexpr const GLenum DEBUG_TYPE_DEPRECATED_BEHAVIOR = 0x824D;
+       static constexpr const GLenum DEBUG_TYPE_UNDEFINED_BEHAVIOR = 0x824E;
+       static constexpr const GLenum DEBUG_TYPE_PORTABILITY = 0x824F;
+       static constexpr const GLenum DEBUG_TYPE_PERFORMANCE = 0x8250;
+       static constexpr const GLenum DEBUG_TYPE_OTHER = 0x8251;
+       static constexpr const GLenum MAX_DEBUG_MESSAGE_LENGTH = 0x9143;
+       static constexpr const GLenum MAX_DEBUG_LOGGED_MESSAGES = 0x9144;
+       static constexpr const GLenum DEBUG_LOGGED_MESSAGES = 0x9145;
+       static constexpr const GLenum DEBUG_SEVERITY_HIGH = 0x9146;
+       static constexpr const GLenum DEBUG_SEVERITY_MEDIUM = 0x9147;
+       static constexpr const GLenum DEBUG_SEVERITY_LOW = 0x9148;
+       static constexpr const GLenum DEBUG_TYPE_MARKER = 0x8268;
+       static constexpr const GLenum DEBUG_TYPE_PUSH_GROUP = 0x8269;
+       static constexpr const GLenum DEBUG_TYPE_POP_GROUP = 0x826A;
+       static constexpr const GLenum DEBUG_SEVERITY_NOTIFICATION = 0x826B;
+       static constexpr const GLenum MAX_DEBUG_GROUP_STACK_DEPTH = 0x826C;
+       static constexpr const GLenum DEBUG_GROUP_STACK_DEPTH = 0x826D;
+       static constexpr const GLenum BUFFER = 0x82E0;
+       static constexpr const GLenum SHADER = 0x82E1;
+       static constexpr const GLenum PROGRAM = 0x82E2;
+       static constexpr const GLenum QUERY = 0x82E3;
+       static constexpr const GLenum PROGRAM_PIPELINE = 0x82E4;
+       static constexpr const GLenum SAMPLER = 0x82E6;
+       static constexpr const GLenum MAX_LABEL_LENGTH = 0x82E8;
+       static constexpr const GLenum DEBUG_OUTPUT = 0x92E0;
+       static constexpr const GLenum CONTEXT_FLAG_DEBUG_BIT = 0x00000002;
+       static constexpr const GLenum MAX_UNIFORM_LOCATIONS = 0x826E;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT_WIDTH = 0x9310;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT_HEIGHT = 0x9311;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT_LAYERS = 0x9312;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT_SAMPLES = 0x9313;
+       static constexpr const GLenum FRAMEBUFFER_DEFAULT_FIXED_SAMPLE_LOCATIONS = 0x9314;
+       static constexpr const GLenum MAX_FRAMEBUFFER_WIDTH = 0x9315;
+       static constexpr const GLenum MAX_FRAMEBUFFER_HEIGHT = 0x9316;
+       static constexpr const GLenum MAX_FRAMEBUFFER_LAYERS = 0x9317;
+       static constexpr const GLenum MAX_FRAMEBUFFER_SAMPLES = 0x9318;
+       static constexpr const GLenum INTERNALFORMAT_SUPPORTED = 0x826F;
+       static constexpr const GLenum INTERNALFORMAT_PREFERRED = 0x8270;
+       static constexpr const GLenum INTERNALFORMAT_RED_SIZE = 0x8271;
+       static constexpr const GLenum INTERNALFORMAT_GREEN_SIZE = 0x8272;
+       static constexpr const GLenum INTERNALFORMAT_BLUE_SIZE = 0x8273;
+       static constexpr const GLenum INTERNALFORMAT_ALPHA_SIZE = 0x8274;
+       static constexpr const GLenum INTERNALFORMAT_DEPTH_SIZE = 0x8275;
+       static constexpr const GLenum INTERNALFORMAT_STENCIL_SIZE = 0x8276;
+       static constexpr const GLenum INTERNALFORMAT_SHARED_SIZE = 0x8277;
+       static constexpr const GLenum INTERNALFORMAT_RED_TYPE = 0x8278;
+       static constexpr const GLenum INTERNALFORMAT_GREEN_TYPE = 0x8279;
+       static constexpr const GLenum INTERNALFORMAT_BLUE_TYPE = 0x827A;
+       static constexpr const GLenum INTERNALFORMAT_ALPHA_TYPE = 0x827B;
+       static constexpr const GLenum INTERNALFORMAT_DEPTH_TYPE = 0x827C;
+       static constexpr const GLenum INTERNALFORMAT_STENCIL_TYPE = 0x827D;
+       static constexpr const GLenum MAX_WIDTH = 0x827E;
+       static constexpr const GLenum MAX_HEIGHT = 0x827F;
+       static constexpr const GLenum MAX_DEPTH = 0x8280;
+       static constexpr const GLenum MAX_LAYERS = 0x8281;
+       static constexpr const GLenum MAX_COMBINED_DIMENSIONS = 0x8282;
+       static constexpr const GLenum COLOR_COMPONENTS = 0x8283;
+       static constexpr const GLenum DEPTH_COMPONENTS = 0x8284;
+       static constexpr const GLenum STENCIL_COMPONENTS = 0x8285;
+       static constexpr const GLenum COLOR_RENDERABLE = 0x8286;
+       static constexpr const GLenum DEPTH_RENDERABLE = 0x8287;
+       static constexpr const GLenum STENCIL_RENDERABLE = 0x8288;
+       static constexpr const GLenum FRAMEBUFFER_RENDERABLE = 0x8289;
+       static constexpr const GLenum FRAMEBUFFER_RENDERABLE_LAYERED = 0x828A;
+       static constexpr const GLenum FRAMEBUFFER_BLEND = 0x828B;
+       static constexpr const GLenum READ_PIXELS = 0x828C;
+       static constexpr const GLenum READ_PIXELS_FORMAT = 0x828D;
+       static constexpr const GLenum READ_PIXELS_TYPE = 0x828E;
+       static constexpr const GLenum TEXTURE_IMAGE_FORMAT = 0x828F;
+       static constexpr const GLenum TEXTURE_IMAGE_TYPE = 0x8290;
+       static constexpr const GLenum GET_TEXTURE_IMAGE_FORMAT = 0x8291;
+       static constexpr const GLenum GET_TEXTURE_IMAGE_TYPE = 0x8292;
+       static constexpr const GLenum MIPMAP = 0x8293;
+       static constexpr const GLenum MANUAL_GENERATE_MIPMAP = 0x8294;
+       static constexpr const GLenum AUTO_GENERATE_MIPMAP = 0x8295;
+       static constexpr const GLenum COLOR_ENCODING = 0x8296;
+       static constexpr const GLenum SRGB_READ = 0x8297;
+       static constexpr const GLenum SRGB_WRITE = 0x8298;
+       static constexpr const GLenum FILTER = 0x829A;
+       static constexpr const GLenum VERTEX_TEXTURE = 0x829B;
+       static constexpr const GLenum TESS_CONTROL_TEXTURE = 0x829C;
+       static constexpr const GLenum TESS_EVALUATION_TEXTURE = 0x829D;
+       static constexpr const GLenum GEOMETRY_TEXTURE = 0x829E;
+       static constexpr const GLenum FRAGMENT_TEXTURE = 0x829F;
+       static constexpr const GLenum COMPUTE_TEXTURE = 0x82A0;
+       static constexpr const GLenum TEXTURE_SHADOW = 0x82A1;
+       static constexpr const GLenum TEXTURE_GATHER = 0x82A2;
+       static constexpr const GLenum TEXTURE_GATHER_SHADOW = 0x82A3;
+       static constexpr const GLenum SHADER_IMAGE_LOAD = 0x82A4;
+       static constexpr const GLenum SHADER_IMAGE_STORE = 0x82A5;
+       static constexpr const GLenum SHADER_IMAGE_ATOMIC = 0x82A6;
+       static constexpr const GLenum IMAGE_TEXEL_SIZE = 0x82A7;
+       static constexpr const GLenum IMAGE_COMPATIBILITY_CLASS = 0x82A8;
+       static constexpr const GLenum IMAGE_PIXEL_FORMAT = 0x82A9;
+       static constexpr const GLenum IMAGE_PIXEL_TYPE = 0x82AA;
+       static constexpr const GLenum SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST = 0x82AC;
+       static constexpr const GLenum SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST = 0x82AD;
+       static constexpr const GLenum SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE = 0x82AE;
+       static constexpr const GLenum SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE = 0x82AF;
+       static constexpr const GLenum TEXTURE_COMPRESSED_BLOCK_WIDTH = 0x82B1;
+       static constexpr const GLenum TEXTURE_COMPRESSED_BLOCK_HEIGHT = 0x82B2;
+       static constexpr const GLenum TEXTURE_COMPRESSED_BLOCK_SIZE = 0x82B3;
+       static constexpr const GLenum CLEAR_BUFFER = 0x82B4;
+       static constexpr const GLenum TEXTURE_VIEW = 0x82B5;
+       static constexpr const GLenum VIEW_COMPATIBILITY_CLASS = 0x82B6;
+       static constexpr const GLenum FULL_SUPPORT = 0x82B7;
+       static constexpr const GLenum CAVEAT_SUPPORT = 0x82B8;
+       static constexpr const GLenum IMAGE_CLASS_4_X_32 = 0x82B9;
+       static constexpr const GLenum IMAGE_CLASS_2_X_32 = 0x82BA;
+       static constexpr const GLenum IMAGE_CLASS_1_X_32 = 0x82BB;
+       static constexpr const GLenum IMAGE_CLASS_4_X_16 = 0x82BC;
+       static constexpr const GLenum IMAGE_CLASS_2_X_16 = 0x82BD;
+       static constexpr const GLenum IMAGE_CLASS_1_X_16 = 0x82BE;
+       static constexpr const GLenum IMAGE_CLASS_4_X_8 = 0x82BF;
+       static constexpr const GLenum IMAGE_CLASS_2_X_8 = 0x82C0;
+       static constexpr const GLenum IMAGE_CLASS_1_X_8 = 0x82C1;
+       static constexpr const GLenum IMAGE_CLASS_11_11_10 = 0x82C2;
+       static constexpr const GLenum IMAGE_CLASS_10_10_10_2 = 0x82C3;
+       static constexpr const GLenum VIEW_CLASS_128_BITS = 0x82C4;
+       static constexpr const GLenum VIEW_CLASS_96_BITS = 0x82C5;
+       static constexpr const GLenum VIEW_CLASS_64_BITS = 0x82C6;
+       static constexpr const GLenum VIEW_CLASS_48_BITS = 0x82C7;
+       static constexpr const GLenum VIEW_CLASS_32_BITS = 0x82C8;
+       static constexpr const GLenum VIEW_CLASS_24_BITS = 0x82C9;
+       static constexpr const GLenum VIEW_CLASS_16_BITS = 0x82CA;
+       static constexpr const GLenum VIEW_CLASS_8_BITS = 0x82CB;
+       static constexpr const GLenum VIEW_CLASS_S3TC_DXT1_RGB = 0x82CC;
+       static constexpr const GLenum VIEW_CLASS_S3TC_DXT1_RGBA = 0x82CD;
+       static constexpr const GLenum VIEW_CLASS_S3TC_DXT3_RGBA = 0x82CE;
+       static constexpr const GLenum VIEW_CLASS_S3TC_DXT5_RGBA = 0x82CF;
+       static constexpr const GLenum VIEW_CLASS_RGTC1_RED = 0x82D0;
+       static constexpr const GLenum VIEW_CLASS_RGTC2_RG = 0x82D1;
+       static constexpr const GLenum VIEW_CLASS_BPTC_UNORM = 0x82D2;
+       static constexpr const GLenum VIEW_CLASS_BPTC_FLOAT = 0x82D3;
+       static constexpr const GLenum UNIFORM = 0x92E1;
+       static constexpr const GLenum UNIFORM_BLOCK = 0x92E2;
+       static constexpr const GLenum PROGRAM_INPUT = 0x92E3;
+       static constexpr const GLenum PROGRAM_OUTPUT = 0x92E4;
+       static constexpr const GLenum BUFFER_VARIABLE = 0x92E5;
+       static constexpr const GLenum SHADER_STORAGE_BLOCK = 0x92E6;
+       static constexpr const GLenum VERTEX_SUBROUTINE = 0x92E8;
+       static constexpr const GLenum TESS_CONTROL_SUBROUTINE = 0x92E9;
+       static constexpr const GLenum TESS_EVALUATION_SUBROUTINE = 0x92EA;
+       static constexpr const GLenum GEOMETRY_SUBROUTINE = 0x92EB;
+       static constexpr const GLenum FRAGMENT_SUBROUTINE = 0x92EC;
+       static constexpr const GLenum COMPUTE_SUBROUTINE = 0x92ED;
+       static constexpr const GLenum VERTEX_SUBROUTINE_UNIFORM = 0x92EE;
+       static constexpr const GLenum TESS_CONTROL_SUBROUTINE_UNIFORM = 0x92EF;
+       static constexpr const GLenum TESS_EVALUATION_SUBROUTINE_UNIFORM = 0x92F0;
+       static constexpr const GLenum GEOMETRY_SUBROUTINE_UNIFORM = 0x92F1;
+       static constexpr const GLenum FRAGMENT_SUBROUTINE_UNIFORM = 0x92F2;
+       static constexpr const GLenum COMPUTE_SUBROUTINE_UNIFORM = 0x92F3;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_VARYING = 0x92F4;
+       static constexpr const GLenum ACTIVE_RESOURCES = 0x92F5;
+       static constexpr const GLenum MAX_NAME_LENGTH = 0x92F6;
+       static constexpr const GLenum MAX_NUM_ACTIVE_VARIABLES = 0x92F7;
+       static constexpr const GLenum MAX_NUM_COMPATIBLE_SUBROUTINES = 0x92F8;
+       static constexpr const GLenum NAME_LENGTH = 0x92F9;
+       static constexpr const GLenum TYPE = 0x92FA;
+       static constexpr const GLenum ARRAY_SIZE = 0x92FB;
+       static constexpr const GLenum OFFSET = 0x92FC;
+       static constexpr const GLenum BLOCK_INDEX = 0x92FD;
+       static constexpr const GLenum ARRAY_STRIDE = 0x92FE;
+       static constexpr const GLenum MATRIX_STRIDE = 0x92FF;
+       static constexpr const GLenum IS_ROW_MAJOR = 0x9300;
+       static constexpr const GLenum ATOMIC_COUNTER_BUFFER_INDEX = 0x9301;
+       static constexpr const GLenum BUFFER_BINDING = 0x9302;
+       static constexpr const GLenum BUFFER_DATA_SIZE = 0x9303;
+       static constexpr const GLenum NUM_ACTIVE_VARIABLES = 0x9304;
+       static constexpr const GLenum ACTIVE_VARIABLES = 0x9305;
+       static constexpr const GLenum REFERENCED_BY_VERTEX_SHADER = 0x9306;
+       static constexpr const GLenum REFERENCED_BY_TESS_CONTROL_SHADER = 0x9307;
+       static constexpr const GLenum REFERENCED_BY_TESS_EVALUATION_SHADER = 0x9308;
+       static constexpr const GLenum REFERENCED_BY_GEOMETRY_SHADER = 0x9309;
+       static constexpr const GLenum REFERENCED_BY_FRAGMENT_SHADER = 0x930A;
+       static constexpr const GLenum REFERENCED_BY_COMPUTE_SHADER = 0x930B;
+       static constexpr const GLenum TOP_LEVEL_ARRAY_SIZE = 0x930C;
+       static constexpr const GLenum TOP_LEVEL_ARRAY_STRIDE = 0x930D;
+       static constexpr const GLenum LOCATION = 0x930E;
+       static constexpr const GLenum LOCATION_INDEX = 0x930F;
+       static constexpr const GLenum IS_PER_PATCH = 0x92E7;
+       static constexpr const GLenum SHADER_STORAGE_BUFFER = 0x90D2;
+       static constexpr const GLenum SHADER_STORAGE_BUFFER_BINDING = 0x90D3;
+       static constexpr const GLenum SHADER_STORAGE_BUFFER_START = 0x90D4;
+       static constexpr const GLenum SHADER_STORAGE_BUFFER_SIZE = 0x90D5;
+       static constexpr const GLenum MAX_VERTEX_SHADER_STORAGE_BLOCKS = 0x90D6;
+       static constexpr const GLenum MAX_GEOMETRY_SHADER_STORAGE_BLOCKS = 0x90D7;
+       static constexpr const GLenum MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS = 0x90D8;
+       static constexpr const GLenum MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS = 0x90D9;
+       static constexpr const GLenum MAX_FRAGMENT_SHADER_STORAGE_BLOCKS = 0x90DA;
+       static constexpr const GLenum MAX_COMPUTE_SHADER_STORAGE_BLOCKS = 0x90DB;
+       static constexpr const GLenum MAX_COMBINED_SHADER_STORAGE_BLOCKS = 0x90DC;
+       static constexpr const GLenum MAX_SHADER_STORAGE_BUFFER_BINDINGS = 0x90DD;
+       static constexpr const GLenum MAX_SHADER_STORAGE_BLOCK_SIZE = 0x90DE;
+       static constexpr const GLenum SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT = 0x90DF;
+       static constexpr const GLenum SHADER_STORAGE_BARRIER_BIT = 0x00002000;
+       static constexpr const GLenum MAX_COMBINED_SHADER_OUTPUT_RESOURCES = 0x8F39;
+       static constexpr const GLenum DEPTH_STENCIL_TEXTURE_MODE = 0x90EA;
+       static constexpr const GLenum TEXTURE_BUFFER_OFFSET = 0x919D;
+       static constexpr const GLenum TEXTURE_BUFFER_SIZE = 0x919E;
+       static constexpr const GLenum TEXTURE_BUFFER_OFFSET_ALIGNMENT = 0x919F;
+       static constexpr const GLenum TEXTURE_VIEW_MIN_LEVEL = 0x82DB;
+       static constexpr const GLenum TEXTURE_VIEW_NUM_LEVELS = 0x82DC;
+       static constexpr const GLenum TEXTURE_VIEW_MIN_LAYER = 0x82DD;
+       static constexpr const GLenum TEXTURE_VIEW_NUM_LAYERS = 0x82DE;
+       static constexpr const GLenum TEXTURE_IMMUTABLE_LEVELS = 0x82DF;
+       static constexpr const GLenum VERTEX_ATTRIB_BINDING = 0x82D4;
+       static constexpr const GLenum VERTEX_ATTRIB_RELATIVE_OFFSET = 0x82D5;
+       static constexpr const GLenum VERTEX_BINDING_DIVISOR = 0x82D6;
+       static constexpr const GLenum VERTEX_BINDING_OFFSET = 0x82D7;
+       static constexpr const GLenum VERTEX_BINDING_STRIDE = 0x82D8;
+       static constexpr const GLenum MAX_VERTEX_ATTRIB_RELATIVE_OFFSET = 0x82D9;
+       static constexpr const GLenum MAX_VERTEX_ATTRIB_BINDINGS = 0x82DA;
+       static constexpr const GLenum VERTEX_BINDING_BUFFER = 0x8F4F;
+       static constexpr const GLenum MAX_VERTEX_ATTRIB_STRIDE = 0x82E5;
+       static constexpr const GLenum PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED = 0x8221;
+       static constexpr const GLenum TEXTURE_BUFFER_BINDING = 0x8C2A;
+       static constexpr const GLenum MAP_PERSISTENT_BIT = 0x0040;
+       static constexpr const GLenum MAP_COHERENT_BIT = 0x0080;
+       static constexpr const GLenum DYNAMIC_STORAGE_BIT = 0x0100;
+       static constexpr const GLenum CLIENT_STORAGE_BIT = 0x0200;
+       static constexpr const GLenum CLIENT_MAPPED_BUFFER_BARRIER_BIT = 0x00004000;
+       static constexpr const GLenum BUFFER_IMMUTABLE_STORAGE = 0x821F;
+       static constexpr const GLenum BUFFER_STORAGE_FLAGS = 0x8220;
+       static constexpr const GLenum CLEAR_TEXTURE = 0x9365;
+       static constexpr const GLenum LOCATION_COMPONENT = 0x934A;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_INDEX = 0x934B;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_BUFFER_STRIDE = 0x934C;
+       static constexpr const GLenum QUERY_BUFFER = 0x9192;
+       static constexpr const GLenum QUERY_BUFFER_BARRIER_BIT = 0x00008000;
+       static constexpr const GLenum QUERY_BUFFER_BINDING = 0x9193;
+       static constexpr const GLenum QUERY_RESULT_NO_WAIT = 0x9194;
+       static constexpr const GLenum MIRROR_CLAMP_TO_EDGE = 0x8743;
+       static constexpr const GLenum CONTEXT_LOST = 0x0507;
+       static constexpr const GLenum NEGATIVE_ONE_TO_ONE = 0x935E;
+       static constexpr const GLenum ZERO_TO_ONE = 0x935F;
+       static constexpr const GLenum CLIP_ORIGIN = 0x935C;
+       static constexpr const GLenum CLIP_DEPTH_MODE = 0x935D;
+       static constexpr const GLenum QUERY_WAIT_INVERTED = 0x8E17;
+       static constexpr const GLenum QUERY_NO_WAIT_INVERTED = 0x8E18;
+       static constexpr const GLenum QUERY_BY_REGION_WAIT_INVERTED = 0x8E19;
+       static constexpr const GLenum QUERY_BY_REGION_NO_WAIT_INVERTED = 0x8E1A;
+       static constexpr const GLenum MAX_CULL_DISTANCES = 0x82F9;
+       static constexpr const GLenum MAX_COMBINED_CLIP_AND_CULL_DISTANCES = 0x82FA;
+       static constexpr const GLenum TEXTURE_TARGET = 0x1006;
+       static constexpr const GLenum QUERY_TARGET = 0x82EA;
+       static constexpr const GLenum GUILTY_CONTEXT_RESET = 0x8253;
+       static constexpr const GLenum INNOCENT_CONTEXT_RESET = 0x8254;
+       static constexpr const GLenum UNKNOWN_CONTEXT_RESET = 0x8255;
+       static constexpr const GLenum RESET_NOTIFICATION_STRATEGY = 0x8256;
+       static constexpr const GLenum LOSE_CONTEXT_ON_RESET = 0x8252;
+       static constexpr const GLenum NO_RESET_NOTIFICATION = 0x8261;
+       static constexpr const GLenum CONTEXT_FLAG_ROBUST_ACCESS_BIT = 0x00000004;
+       static constexpr const GLenum CONTEXT_RELEASE_BEHAVIOR = 0x82FB;
+       static constexpr const GLenum CONTEXT_RELEASE_BEHAVIOR_FLUSH = 0x82FC;
+       static constexpr const GLenum SHADER_BINARY_FORMAT_SPIR_V = 0x9551;
+       static constexpr const GLenum SPIR_V_BINARY = 0x9552;
+       static constexpr const GLenum PARAMETER_BUFFER = 0x80EE;
+       static constexpr const GLenum PARAMETER_BUFFER_BINDING = 0x80EF;
+       static constexpr const GLenum CONTEXT_FLAG_NO_ERROR_BIT = 0x00000008;
+       static constexpr const GLenum VERTICES_SUBMITTED = 0x82EE;
+       static constexpr const GLenum PRIMITIVES_SUBMITTED = 0x82EF;
+       static constexpr const GLenum VERTEX_SHADER_INVOCATIONS = 0x82F0;
+       static constexpr const GLenum TESS_CONTROL_SHADER_PATCHES = 0x82F1;
+       static constexpr const GLenum TESS_EVALUATION_SHADER_INVOCATIONS = 0x82F2;
+       static constexpr const GLenum GEOMETRY_SHADER_PRIMITIVES_EMITTED = 0x82F3;
+       static constexpr const GLenum FRAGMENT_SHADER_INVOCATIONS = 0x82F4;
+       static constexpr const GLenum COMPUTE_SHADER_INVOCATIONS = 0x82F5;
+       static constexpr const GLenum CLIPPING_INPUT_PRIMITIVES = 0x82F6;
+       static constexpr const GLenum CLIPPING_OUTPUT_PRIMITIVES = 0x82F7;
+       static constexpr const GLenum POLYGON_OFFSET_CLAMP = 0x8E1B;
+       static constexpr const GLenum SPIR_V_EXTENSIONS = 0x9553;
+       static constexpr const GLenum NUM_SPIR_V_EXTENSIONS = 0x9554;
+       static constexpr const GLenum TEXTURE_MAX_ANISOTROPY = 0x84FE;
+       static constexpr const GLenum MAX_TEXTURE_MAX_ANISOTROPY = 0x84FF;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_OVERFLOW = 0x82EC;
+       static constexpr const GLenum TRANSFORM_FEEDBACK_STREAM_OVERFLOW = 0x82ED;
+       static constexpr const GLenum PRIMITIVE_BOUNDING_BOX = 0x92BE;
+       static constexpr const GLenum MULTISAMPLE_LINE_WIDTH_RANGE = 0x9381;
+       static constexpr const GLenum MULTISAMPLE_LINE_WIDTH_GRANULARITY = 0x9382;
+       static constexpr const GLenum UNSIGNED_INT64 = 0x140F;
+       static constexpr const GLenum SYNC_CL_EVENT = 0x8240;
+       static constexpr const GLenum SYNC_CL_EVENT_COMPLETE = 0x8241;
+       static constexpr const GLenum MAX_COMPUTE_VARIABLE_GROUP_INVOCATIONS = 0x9344;
+       static constexpr const GLenum MAX_COMPUTE_FIXED_GROUP_INVOCATIONS = 0x90EB;
+       static constexpr const GLenum MAX_COMPUTE_VARIABLE_GROUP_SIZE = 0x9345;
+       static constexpr const GLenum MAX_COMPUTE_FIXED_GROUP_SIZE = 0x91BF;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_LAYER_COUNT = 0x8DA9;
+       static constexpr const GLenum MAX_GEOMETRY_VARYING_COMPONENTS = 0x8DDD;
+       static constexpr const GLenum MAX_VERTEX_VARYING_COMPONENTS = 0x8DDE;
+       static constexpr const GLenum INT64 = 0x140E;
+       static constexpr const GLenum INT64_VEC2 = 0x8FE9;
+       static constexpr const GLenum INT64_VEC3 = 0x8FEA;
+       static constexpr const GLenum INT64_VEC4 = 0x8FEB;
+       static constexpr const GLenum UNSIGNED_INT64_VEC2 = 0x8FF5;
+       static constexpr const GLenum UNSIGNED_INT64_VEC3 = 0x8FF6;
+       static constexpr const GLenum UNSIGNED_INT64_VEC4 = 0x8FF7;
+       static constexpr const GLenum SRGB_DECODE = 0x8299;
+       static constexpr const GLenum VIEW_CLASS_EAC_R11 = 0x9383;
+       static constexpr const GLenum VIEW_CLASS_EAC_RG11 = 0x9384;
+       static constexpr const GLenum VIEW_CLASS_ETC2_RGB = 0x9385;
+       static constexpr const GLenum VIEW_CLASS_ETC2_RGBA = 0x9386;
+       static constexpr const GLenum VIEW_CLASS_ETC2_EAC_RGBA = 0x9387;
+       static constexpr const GLenum VIEW_CLASS_ASTC_4x4_RGBA = 0x9388;
+       static constexpr const GLenum VIEW_CLASS_ASTC_5x4_RGBA = 0x9389;
+       static constexpr const GLenum VIEW_CLASS_ASTC_5x5_RGBA = 0x938A;
+       static constexpr const GLenum VIEW_CLASS_ASTC_6x5_RGBA = 0x938B;
+       static constexpr const GLenum VIEW_CLASS_ASTC_6x6_RGBA = 0x938C;
+       static constexpr const GLenum VIEW_CLASS_ASTC_8x5_RGBA = 0x938D;
+       static constexpr const GLenum VIEW_CLASS_ASTC_8x6_RGBA = 0x938E;
+       static constexpr const GLenum VIEW_CLASS_ASTC_8x8_RGBA = 0x938F;
+       static constexpr const GLenum VIEW_CLASS_ASTC_10x5_RGBA = 0x9390;
+       static constexpr const GLenum VIEW_CLASS_ASTC_10x6_RGBA = 0x9391;
+       static constexpr const GLenum VIEW_CLASS_ASTC_10x8_RGBA = 0x9392;
+       static constexpr const GLenum VIEW_CLASS_ASTC_10x10_RGBA = 0x9393;
+       static constexpr const GLenum VIEW_CLASS_ASTC_12x10_RGBA = 0x9394;
+       static constexpr const GLenum VIEW_CLASS_ASTC_12x12_RGBA = 0x9395;
+       static constexpr const GLenum MAX_SHADER_COMPILER_THREADS = 0x91B0;
+       static constexpr const GLenum COMPLETION_STATUS = 0x91B1;
+       static constexpr const GLenum SAMPLE_LOCATION_SUBPIXEL_BITS = 0x933D;
+       static constexpr const GLenum SAMPLE_LOCATION_PIXEL_GRID_WIDTH = 0x933E;
+       static constexpr const GLenum SAMPLE_LOCATION_PIXEL_GRID_HEIGHT = 0x933F;
+       static constexpr const GLenum PROGRAMMABLE_SAMPLE_LOCATION_TABLE_SIZE = 0x9340;
+       static constexpr const GLenum SAMPLE_LOCATION = 0x8E50;
+       static constexpr const GLenum PROGRAMMABLE_SAMPLE_LOCATION = 0x9341;
+       static constexpr const GLenum FRAMEBUFFER_PROGRAMMABLE_SAMPLE_LOCATIONS = 0x9342;
+       static constexpr const GLenum FRAMEBUFFER_SAMPLE_LOCATION_PIXEL_GRID = 0x9343;
+       static constexpr const GLenum SHADER_INCLUDE = 0x8DAE;
+       static constexpr const GLenum NAMED_STRING_LENGTH = 0x8DE9;
+       static constexpr const GLenum NAMED_STRING_TYPE = 0x8DEA;
+       static constexpr const GLenum SPARSE_STORAGE_BIT = 0x0400;
+       static constexpr const GLenum SPARSE_BUFFER_PAGE_SIZE = 0x82F8;
+       static constexpr const GLenum TEXTURE_SPARSE = 0x91A6;
+       static constexpr const GLenum VIRTUAL_PAGE_SIZE_INDEX = 0x91A7;
+       static constexpr const GLenum NUM_SPARSE_LEVELS = 0x91AA;
+       static constexpr const GLenum NUM_VIRTUAL_PAGE_SIZES = 0x91A8;
+       static constexpr const GLenum VIRTUAL_PAGE_SIZE_X = 0x9195;
+       static constexpr const GLenum VIRTUAL_PAGE_SIZE_Y = 0x9196;
+       static constexpr const GLenum VIRTUAL_PAGE_SIZE_Z = 0x9197;
+       static constexpr const GLenum MAX_SPARSE_TEXTURE_SIZE = 0x9198;
+       static constexpr const GLenum MAX_SPARSE_3D_TEXTURE_SIZE = 0x9199;
+       static constexpr const GLenum MAX_SPARSE_ARRAY_TEXTURE_LAYERS = 0x919A;
+       static constexpr const GLenum SPARSE_TEXTURE_FULL_ARRAY_CUBE_MIPMAPS = 0x91A9;
+       static constexpr const GLenum TEXTURE_BUFFER_FORMAT = 0x8C2E;
+       static constexpr const GLenum TEXTURE_REDUCTION_MODE = 0x9366;
+       static constexpr const GLenum WEIGHTED_AVERAGE = 0x9367;
+       static constexpr const GLenum MAX_PROGRAM_TEXTURE_GATHER_COMPONENTS = 0x8F9F;
+       static constexpr const GLenum MULTIPLY = 0x9294;
+       static constexpr const GLenum SCREEN = 0x9295;
+       static constexpr const GLenum OVERLAY = 0x9296;
+       static constexpr const GLenum DARKEN = 0x9297;
+       static constexpr const GLenum LIGHTEN = 0x9298;
+       static constexpr const GLenum COLORDODGE = 0x9299;
+       static constexpr const GLenum COLORBURN = 0x929A;
+       static constexpr const GLenum HARDLIGHT = 0x929B;
+       static constexpr const GLenum SOFTLIGHT = 0x929C;
+       static constexpr const GLenum _DIFFERENCE = 0x929E;
+       static constexpr const GLenum EXCLUSION = 0x92A0;
+       static constexpr const GLenum HSL_HUE = 0x92AD;
+       static constexpr const GLenum HSL_SATURATION = 0x92AE;
+       static constexpr const GLenum HSL_COLOR = 0x92AF;
+       static constexpr const GLenum HSL_LUMINOSITY = 0x92B0;
+       static constexpr const GLenum BLEND_ADVANCED_COHERENT = 0x9285;
+       static constexpr const GLenum CONTEXT_ROBUST_ACCESS = 0x90F3;
+       static constexpr const GLenum SUBGROUP_SIZE = 0x9532;
+       static constexpr const GLenum SUBGROUP_SUPPORTED_STAGES = 0x9533;
+       static constexpr const GLenum SUBGROUP_SUPPORTED_FEATURES = 0x9534;
+       static constexpr const GLenum SUBGROUP_QUAD_ALL_STAGES = 0x9535;
+       static constexpr const GLenum SUBGROUP_FEATURE_BASIC_BIT = 0x00000001;
+       static constexpr const GLenum SUBGROUP_FEATURE_VOTE_BIT = 0x00000002;
+       static constexpr const GLenum SUBGROUP_FEATURE_ARITHMETIC_BIT = 0x00000004;
+       static constexpr const GLenum SUBGROUP_FEATURE_BALLOT_BIT = 0x00000008;
+       static constexpr const GLenum SUBGROUP_FEATURE_SHUFFLE_BIT = 0x00000010;
+       static constexpr const GLenum SUBGROUP_FEATURE_SHUFFLE_RELATIVE_BIT = 0x00000020;
+       static constexpr const GLenum SUBGROUP_FEATURE_CLUSTERED_BIT = 0x00000040;
+       static constexpr const GLenum SUBGROUP_FEATURE_QUAD_BIT = 0x00000080;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_4x4 = 0x93B0;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_5x4 = 0x93B1;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_5x5 = 0x93B2;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_6x5 = 0x93B3;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_6x6 = 0x93B4;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_8x5 = 0x93B5;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_8x6 = 0x93B6;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_8x8 = 0x93B7;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_10x5 = 0x93B8;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_10x6 = 0x93B9;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_10x8 = 0x93BA;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_10x10 = 0x93BB;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_12x10 = 0x93BC;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_12x12 = 0x93BD;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_4x4 = 0x93D0;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_5x4 = 0x93D1;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_5x5 = 0x93D2;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x5 = 0x93D3;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x6 = 0x93D4;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_8x5 = 0x93D5;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_8x6 = 0x93D6;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_8x8 = 0x93D7;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_10x5 = 0x93D8;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_10x6 = 0x93D9;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_10x8 = 0x93DA;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_10x10 = 0x93DB;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_12x10 = 0x93DC;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_12x12 = 0x93DD;
+       static constexpr const GLenum PROGRAM_PIPELINE_OBJECT = 0x8A4F;
+       static constexpr const GLenum PROGRAM_OBJECT = 0x8B40;
+       static constexpr const GLenum SHADER_OBJECT = 0x8B48;
+       static constexpr const GLenum BUFFER_OBJECT = 0x9151;
+       static constexpr const GLenum QUERY_OBJECT = 0x9153;
+       static constexpr const GLenum VERTEX_ARRAY_OBJECT = 0x9154;
+       static constexpr const GLenum PROGRAM_MATRIX = 0x8E2D;
+       static constexpr const GLenum TRANSPOSE_PROGRAM_MATRIX = 0x8E2E;
+       static constexpr const GLenum PROGRAM_MATRIX_STACK_DEPTH = 0x8E2F;
+       static constexpr const GLenum RASTER_MULTISAMPLE = 0x9327;
+       static constexpr const GLenum RASTER_SAMPLES = 0x9328;
+       static constexpr const GLenum MAX_RASTER_SAMPLES = 0x9329;
+       static constexpr const GLenum RASTER_FIXED_SAMPLE_LOCATIONS = 0x932A;
+       static constexpr const GLenum MULTISAMPLE_RASTERIZATION_ALLOWED = 0x932B;
+       static constexpr const GLenum EFFECTIVE_RASTER_SAMPLES = 0x932C;
+       static constexpr const GLenum FRAGMENT_SHADER_DISCARDS_SAMPLES = 0x8A52;
+       static constexpr const GLenum COMPRESSED_RGB_S3TC_DXT1 = 0x83F0;
+       static constexpr const GLenum COMPRESSED_RGBA_S3TC_DXT1 = 0x83F1;
+       static constexpr const GLenum COMPRESSED_RGBA_S3TC_DXT3 = 0x83F2;
+       static constexpr const GLenum COMPRESSED_RGBA_S3TC_DXT5 = 0x83F3;
+       static constexpr const GLenum SR8 = 0x8FBD;
+       static constexpr const GLenum SRG8 = 0x8FBE;
+       static constexpr const GLenum TEXTURE_SRGB_DECODE = 0x8A48;
+       static constexpr const GLenum DECODE = 0x8A49;
+       static constexpr const GLenum SKIP_DECODE = 0x8A4A;
+       static constexpr const GLenum INCLUSIVE = 0x8F10;
+       static constexpr const GLenum EXCLUSIVE = 0x8F11;
+       static constexpr const GLenum WINDOW_RECTANGLE = 0x8F12;
+       static constexpr const GLenum WINDOW_RECTANGLE_MODE = 0x8F13;
+       static constexpr const GLenum MAX_WINDOW_RECTANGLES = 0x8F14;
+       static constexpr const GLenum NUM_WINDOW_RECTANGLES = 0x8F15;
+       static constexpr const GLenum TEXTURE_EXTERNAL = 0x8D65;
+       static constexpr const GLenum TEXTURE_BINDING_EXTERNAL = 0x8D67;
+       static constexpr const GLenum REQUIRED_TEXTURE_IMAGE_UNITS = 0x8D68;
+       static constexpr const GLenum SAMPLER_EXTERNAL = 0x8D66;
+       static constexpr const GLenum ETC1_RGB8 = 0x8D64;
+       static constexpr const GLenum PALETTE4_RGB8 = 0x8B90;
+       static constexpr const GLenum PALETTE4_RGBA8 = 0x8B91;
+       static constexpr const GLenum PALETTE4_R5_G6_B5 = 0x8B92;
+       static constexpr const GLenum PALETTE4_RGBA4 = 0x8B93;
+       static constexpr const GLenum PALETTE4_RGB5_A1 = 0x8B94;
+       static constexpr const GLenum PALETTE8_RGB8 = 0x8B95;
+       static constexpr const GLenum PALETTE8_RGBA8 = 0x8B96;
+       static constexpr const GLenum PALETTE8_R5_G6_B5 = 0x8B97;
+       static constexpr const GLenum PALETTE8_RGBA4 = 0x8B98;
+       static constexpr const GLenum PALETTE8_RGB5_A1 = 0x8B99;
+       static constexpr const GLenum GEOMETRY_LINKED_VERTICES_OUT = 0x8916;
+       static constexpr const GLenum GEOMETRY_LINKED_INPUT_TYPE = 0x8917;
+       static constexpr const GLenum GEOMETRY_LINKED_OUTPUT_TYPE = 0x8918;
+       static constexpr const GLenum ALPHA8 = 0x803C;
+       static constexpr const GLenum LUMINANCE4_ALPHA4 = 0x8043;
+       static constexpr const GLenum LUMINANCE8_ALPHA8 = 0x8045;
+       static constexpr const GLenum LUMINANCE8 = 0x8040;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET = 0x8CD4;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_3x3x3 = 0x93C0;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_4x3x3 = 0x93C1;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_4x4x3 = 0x93C2;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_4x4x4 = 0x93C3;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_5x4x4 = 0x93C4;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_5x5x4 = 0x93C5;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_5x5x5 = 0x93C6;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_6x5x5 = 0x93C7;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_6x6x5 = 0x93C8;
+       static constexpr const GLenum COMPRESSED_RGBA_ASTC_6x6x6 = 0x93C9;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3 = 0x93E0;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3 = 0x93E1;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3 = 0x93E2;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4 = 0x93E3;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4 = 0x93E4;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4 = 0x93E5;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5 = 0x93E6;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5 = 0x93E7;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5 = 0x93E8;
+       static constexpr const GLenum COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6 = 0x93E9;
+       static constexpr const GLenum INT_10_10_10_2 = 0x8DF7;
+       static constexpr const GLenum BGRA8 = 0x93A1;
+       static constexpr const GLenum MALI_PROGRAM_BINARY_ARM = 0x8F61;
+       static constexpr const GLenum MALI_SHADER_BINARY_ARM = 0x8F60;
+       static constexpr const GLenum FETCH_PER_SAMPLE_ARM = 0x8F65;
+       static constexpr const GLenum FRAGMENT_SHADER_FRAMEBUFFER_FETCH_MRT_ARM = 0x8F66;
+       static constexpr const GLenum TEXTURE_UNNORMALIZED_COORDINATES_ARM = 0x8F6A;
+       static constexpr const GLenum SMAPHS30_PROGRAM_BINARY_DMP = 0x9251;
+       static constexpr const GLenum SMAPHS_PROGRAM_BINARY_DMP = 0x9252;
+       static constexpr const GLenum DMP_PROGRAM_BINARY_DMP = 0x9253;
+       static constexpr const GLenum SHADER_BINARY_DMP = 0x9250;
+       static constexpr const GLenum SAMPLER_EXTERNAL_2D_Y2Y = 0x8BE7;
+       static constexpr const GLenum GPU_DISJOINT = 0x8FBB;
+       static constexpr const GLenum TEXTURE_TILING = 0x9580;
+       static constexpr const GLenum DEDICATED_MEMORY_OBJECT = 0x9581;
+       static constexpr const GLenum PROTECTED_MEMORY_OBJECT = 0x959B;
+       static constexpr const GLenum NUM_TILING_TYPES = 0x9582;
+       static constexpr const GLenum TILING_TYPES = 0x9583;
+       static constexpr const GLenum OPTIMAL_TILING = 0x9584;
+       static constexpr const GLenum LINEAR_TILING = 0x9585;
+       static constexpr const GLenum NUM_DEVICE_UUIDS = 0x9596;
+       static constexpr const GLenum DEVICE_UUID = 0x9597;
+       static constexpr const GLenum DRIVER_UUID = 0x9598;
+       static constexpr const GLenum HANDLE_TYPE_OPAQUE_FD = 0x9586;
+       static constexpr const GLenum HANDLE_TYPE_OPAQUE_WIN32 = 0x9587;
+       static constexpr const GLenum HANDLE_TYPE_OPAQUE_WIN32_KMT = 0x9588;
+       static constexpr const GLenum DEVICE_LUID = 0x9599;
+       static constexpr const GLenum DEVICE_NODE_MASK = 0x959A;
+       static constexpr const GLenum HANDLE_TYPE_D3D12_TILEPOOL = 0x9589;
+       static constexpr const GLenum HANDLE_TYPE_D3D12_RESOURCE = 0x958A;
+       static constexpr const GLenum HANDLE_TYPE_D3D11_IMAGE = 0x958B;
+       static constexpr const GLenum HANDLE_TYPE_D3D11_IMAGE_KMT = 0x958C;
+       static constexpr const GLenum FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES = 0x8D6C;
+       static constexpr const GLenum COLOR_ATTACHMENT = 0x90F0;
+       static constexpr const GLenum MULTIVIEW = 0x90F1;
+       static constexpr const GLenum MAX_MULTIVIEW_BUFFERS = 0x90F2;
+       static constexpr const GLenum CONTEXT_FLAG_PROTECTED_CONTENT_BIT = 0x00000010;
+       static constexpr const GLenum TEXTURE_PROTECTED = 0x8BFA;
+       static constexpr const GLenum COMPRESSED_SRGB_PVRTC_2BPPV1 = 0x8A54;
+       static constexpr const GLenum COMPRESSED_SRGB_PVRTC_4BPPV1 = 0x8A55;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1 = 0x8A56;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1 = 0x8A57;
+       static constexpr const GLenum LAYOUT_GENERAL = 0x958D;
+       static constexpr const GLenum LAYOUT_COLOR_ATTACHMENT = 0x958E;
+       static constexpr const GLenum LAYOUT_DEPTH_STENCIL_ATTACHMENT = 0x958F;
+       static constexpr const GLenum LAYOUT_DEPTH_STENCIL_READ_ONLY = 0x9590;
+       static constexpr const GLenum LAYOUT_SHADER_READ_ONLY = 0x9591;
+       static constexpr const GLenum LAYOUT_TRANSFER_SRC = 0x9592;
+       static constexpr const GLenum LAYOUT_TRANSFER_DST = 0x9593;
+       static constexpr const GLenum LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT = 0x9530;
+       static constexpr const GLenum LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY = 0x9531;
+       static constexpr const GLenum HANDLE_TYPE_D3D12_FENCE = 0x9594;
+       static constexpr const GLenum D3D12_FENCE_VALUE = 0x9595;
+       static constexpr const GLenum MAX_SHADER_PIXEL_LOCAL_STORAGE_FAST_SIZE = 0x8F63;
+       static constexpr const GLenum MAX_SHADER_PIXEL_LOCAL_STORAGE_SIZE = 0x8F67;
+       static constexpr const GLenum SHADER_PIXEL_LOCAL_STORAGE = 0x8F64;
+       static constexpr const GLenum MAX_SHADER_COMBINED_LOCAL_STORAGE_FAST_SIZE = 0x9650;
+       static constexpr const GLenum MAX_SHADER_COMBINED_LOCAL_STORAGE_SIZE = 0x9651;
+       static constexpr const GLenum FRAMEBUFFER_INCOMPLETE_INSUFFICIENT_SHADER_COMBINED_LOCAL_STORAGE = 0x9652;
+       static constexpr const GLenum TEXTURE_ASTC_DECODE_PRECISION = 0x8F69;
+       static constexpr const GLenum COMPRESSED_RED_GREEN_RGTC2 = 0x8DBD;
+       static constexpr const GLenum COMPRESSED_SIGNED_RED_GREEN_RGTC2 = 0x8DBE;
+       static constexpr const GLenum COMPRESSED_SRGB_S3TC_DXT1 = 0x8C4C;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_S3TC_DXT1 = 0x8C4D;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_S3TC_DXT3 = 0x8C4E;
+       static constexpr const GLenum COMPRESSED_SRGB_ALPHA_S3TC_DXT5 = 0x8C4F;
+       static constexpr const GLenum TEXTURE_FORMAT_SRGB_OVERRIDE = 0x8FBF;
+       static constexpr const GLenum ALPHA32F = 0x8816;
+       static constexpr const GLenum LUMINANCE32F = 0x8818;
+       static constexpr const GLenum LUMINANCE_ALPHA32F = 0x8819;
+       static constexpr const GLenum ALPHA16F = 0x881C;
+       static constexpr const GLenum LUMINANCE16F = 0x881E;
+       static constexpr const GLenum LUMINANCE_ALPHA16F = 0x881F;
+       static constexpr const GLenum GCCSO_SHADER_BINARY_FJ = 0x9260;
+       static constexpr const GLenum STATE_RESTORE = 0x8BDC;
+       static constexpr const GLenum SHADER_BINARY_VIV = 0x8FC4;
+
+};
+
+//Global GL procedures object.
+IRRLICHT_API extern OpenGLProcedures GL;
diff --git a/scripts/BindingGenerator.lua b/scripts/BindingGenerator.lua
new file mode 100755 (executable)
index 0000000..a1f2f2c
--- /dev/null
@@ -0,0 +1,430 @@
+#!/usr/bin/lua
+-- BindingGenerator.lua (c) hecks 2021
+-- This script is a part of IrrlichtMT, released under the same license.
+
+-- By default we assume you're running this from /scripts/
+-- and that you have the necessary headers there (gitignored for your convenience)
+local sourceTreePath = os.getenv( "IRRMTREPO" ) or "..";
+-- Otherwise run this from wherever you want and set the above env variable.
+local glHeaderPath = os.getenv( "GLHEADERPATH" ) or ".";
+-- GL headers will be looked for in the current directory or GLHEADERPATH.
+-- At the moment we require:
+--             "glcorearb.h"
+--             "gl2ext.h"
+-- Files other than glcorearb.h are only parsed for vendor specific defines
+-- and aliases. Otherwise we only use what exists in glcorearb.h, further
+-- restricted to procedures that are either core or ARB.
+
+
+-- Emulate a portion of the libraries that this was written against.
+getmetatable( "" ).__index = string;
+getmetatable( "" ).__len = string.len;
+getmetatable( "" ).__call = string.format;
+function string:Split( pat )
+       local r = {};
+       local pos = 1;
+       local from, to;
+       while pos and pos <= #self do
+               from, to = self:find( pat, pos );
+               if not from then
+                       break;
+               end
+               r[#r+1] = self:sub( pos, from - 1 );
+               pos = to + 1;
+       end
+       r[#r+1] = self:sub( pos, #self );
+       return r;
+end
+function string:TrimBothEnds()
+       return self:gsub("^%s+",""):gsub("%s+$","");
+end
+local List;
+List = function( t )
+       return setmetatable( t or {}, {
+               __index = {
+                       Add = function( t, v )
+                               t[#t+1] = v;
+                       end;
+                       AddFormat = function( t, str, ... )
+                               t:Add( str( ... ) );
+                       end;
+                       Where = function( t, f )
+                               local r = {};
+                               for i=1, #t do
+                                       if f(t[i]) then r[#r+1] = t[i]; end
+                               end
+                               return List( r );
+                       end;
+                       Select = function( t, f )
+                               local r = {};
+                               for i=1, #t do
+                                       r[#r+1] = f( t[i] );
+                               end
+                               return List( r );
+                       end;
+                       Join = function( t, n )
+                               local r = {};
+                               for i=1, #t do
+                                       r[i] = t[i];
+                               end
+                               for i=1, #n do
+                                       r[#r+1] = n[i];
+                               end
+                               return List( r );
+                       end;
+                       Concat = table.concat;
+               };
+       } );
+end
+
+
+------------ Header parsing ------------
+
+-- GL and GLES alike
+local driverVendors = {
+       "NV", "AMD", "INTEL", "OVR", "QCOM", "IMG", "ANGLE", "APPLE", "MESA"
+}
+local vendorSuffixes = {
+       "ARB", "EXT", "KHR", "OES",
+       unpack( driverVendors )
+};
+local vendorSuffixPattern = {};
+local constSuffixPattern = {};
+for i=1, #vendorSuffixes do
+       vendorSuffixPattern[i] = vendorSuffixes[i] .. "$";
+       constSuffixPattern[i] = ("_%s$")( vendorSuffixes[i] );
+end
+local constBanned = {};
+for i=1, #driverVendors do
+       constBanned[driverVendors[i]] = true;
+end
+-- Strip the uppercase extension vendor suffix from a name.
+local function StripVendorSuffix( str, const )
+       local patterns = const and constSuffixPattern or vendorSuffixPattern;
+       local n;
+       for i=1, #patterns do
+               str, n = str:gsub( patterns[i], "" );
+               if n > 0 then
+                       return str, vendorSuffixes[i];
+               end
+       end
+       return str;
+end
+
+-- Normalize the type of an argument or return, also stripping any suffix
+-- and normalizing all whitespace regions to single spaces.
+local function NormalizeType( str )
+       local chunks = str:Split( "%s+" );
+       for j=1, #chunks do
+               chunks[j] = StripVendorSuffix( chunks[j] );
+       end
+       local T = table.concat(chunks, " " );
+       return T:TrimBothEnds();
+end
+
+-- Normalize an argument, returning the normalized type and the name separately,
+-- always sticking the * of a pointer to the type rather than the name.
+-- We need this to generate a normalized arg list and function signature (below)
+local function NormalizeArgument( str )
+       local chunks = str:Split( "%s+" );
+       for j=1, #chunks do
+               chunks[j] = StripVendorSuffix( chunks[j] );
+       end
+       local last = chunks[#chunks];
+       local name = last:match( "[%w_]+$" );
+       chunks[#chunks] = #name ~= #last and last:sub( 1, #last-#name) or nil;
+       local T = table.concat(chunks, " " ):TrimBothEnds();
+       return T, name
+end
+
+-- Normalize an argument list so that two matching prototypes
+-- will produce the same table if fed to this function.
+local function NormalizeArgList( str )
+       local args = str:Split( ",%s*" );
+       local r = {};
+       for i=1, #args do
+               local T, name = NormalizeArgument( args[i] );
+               r[i] = { T, name };
+       end
+       return r;
+end
+
+-- Normalize a function signature into a unique string for keying
+-- in such a way that if two different GL procedures may be assigned
+-- to the same function pointer, this will produce an identical string for both.
+-- This makes it possible to detect function aliases that may work as a fallback.
+-- You still have to check for the appropriate extension.
+local function NormalizeFunctionSignature( T, str )
+       local args = str:Split( ",%s*" );
+       local r = {};
+       for i=1, #args do
+               r[i] = NormalizeArgument( args[i] );
+       end
+       return ("%s(%s)")( T, table.concat( r, ", " ) );
+end
+
+-- Mangle the PFN name so that we don't collide with a
+-- typedef from any of the GL headers.
+local pfnFormat = "PFNGL%sPROC_MT";
+
+--( T, name, args )
+local typedefFormat = "\ttypedef %s (APIENTRYP %s) (%s);"
+-- Generate a PFN...GL style typedef for a procedure
+--
+local function GetProcedureTypedef( proc )
+       local args = {};
+       for i=1, #proc.args do
+               args[i] = ("%s %s")( unpack( proc.args[i] ) )
+       end
+       return typedefFormat( proc.retType, pfnFormat( proc.name:upper() ), table.concat( args, ", " ) );
+end
+
+local procedures = List();
+local nameset = {};
+local definitions = List();
+local consts = List();
+
+--[[
+       Structured procedure representation:
+
+       ProcSpec = {
+               string name;            -- Normalized name as it appears in the GL spec
+               string? vendor;         -- Uppercase vendor string (ARB, EXT, AMD, NV etc)
+               string signature;
+               string retType;
+               args = { { type, name } };
+       };
+]]
+-- Parse a whole header, extracting the data.
+local function ParseHeader( path, into, apiRegex, defs, consts, nameSet, noNewNames )
+       defs:AddFormat( "\t// %s", path );
+       local f = assert( io.open( path, "r" ), "Could not open " .. path );
+       for line in f:lines() do
+               -- Do not parse PFN typedefs; they're easily reconstructible.
+               local T, rawName, args = line:match( apiRegex );
+               if T then
+                       T = NormalizeType( T );
+                       -- Strip the 'gl' namespace prefix.
+                       local procName = rawName:sub(3,-1);
+                       local name, vendor = StripVendorSuffix( procName );
+                       if not (noNewNames and nameSet[name]) then
+                               nameSet[name] = true;
+                               into:Add{
+                                       name = name;
+                                       vendor = vendor;
+                                       -- pfnType = pfnFormat( procName:upper() );
+                                       signature = NormalizeFunctionSignature( T, args );
+                                       retType = T;
+                                       args = NormalizeArgList( args );
+                               };
+                       end
+               elseif ( line:find( "#" ) and not line:find( "#include" ) ) then
+                       local rawName, value = line:match( "#define%s+GL_([_%w]+)%s+0x(%w+)" );
+                       if rawName and value then
+                               local name, vendor = StripVendorSuffix( rawName, true );
+                               if not constBanned[vendor] then
+                                       consts:Add{ name = name, vendor = vendor, value = "0x"..value };
+                               end
+                       end
+                       ::skip::
+               elseif( line:find( "typedef" ) and not line:find( "%(" ) ) then
+                       -- Passthrough non-PFN typedefs
+                       defs:Add( "\t" .. line );
+               end
+       end
+       defs:Add "";
+       f:close();
+end
+
+------------ Parse the headers ------------
+
+-- ES/gl2.h is a subset of glcorearb.h and does not need parsing.
+
+local funcRegex = "GLAPI%s+(.+)APIENTRY%s+(%w+)%s*%((.*)%)";
+local funcRegexES = "GL_APICALL%s+(.+)GL_APIENTRY%s+(%w+)%s*%((.*)%)";
+ParseHeader( glHeaderPath .. "/glcorearb.h", procedures, funcRegex, definitions, consts, nameset );
+ParseHeader( glHeaderPath .. "/gl2ext.h", procedures, funcRegexES, List(), consts, nameset, true );
+-- Typedefs are redirected to a dummy list here on purpose.
+-- The only unique typedef from gl2ext is this:
+definitions:Add "\ttypedef void *GLeglClientBufferEXT;";
+
+------------ Sort out constants ------------
+
+local cppConsts = List();
+do
+       local constBuckets = {};
+       for i=1, #consts do
+               local vendor = consts[i].vendor or "core";
+               constBuckets[consts[i].name] = constBuckets[consts[i].name] or {};
+               constBuckets[consts[i].name][vendor] = consts[i].value;
+       end
+       local names = {};
+       for i=1, #consts do
+               local k = consts[i].name;
+               local b = constBuckets[k];
+               if k == "WAIT_FAILED" or k == "DIFFERENCE" then
+                       -- This is why using #define as const is evil.
+                       k = "_" .. k;
+               end
+               if b and not names[k] then
+                       names[k] = true;
+                       -- I have empirically tested that constants in GL with the same name do not differ,
+                       -- at least for these suffixes.
+                       local v = b.core or b.KHR or b.ARB or b.OES or b.EXT;
+                       if v then
+                               local T = v:find( "ull" ) and "GLuint64" or "GLenum";
+                               cppConsts:AddFormat( "\tstatic constexpr const %s %s = %s;", T, k, v );
+                       end
+               end
+       end
+end
+
+
+------------ Sort out procedures ------------
+
+local procTable = {};
+
+local coreProcedures = procedures:Where( function(x) return not x.vendor; end );
+local arbProcedures = procedures:Where( function(x) return x.vendor == "ARB"; end );
+
+-- Only consider core and ARB functions.
+local nameList = coreProcedures:Join( arbProcedures ):Select(
+       function(p)
+               return p.name;
+       end );
+
+local nameSet = {};
+local uniqueNames = List();
+
+for s, k in ipairs( nameList ) do
+       if not nameSet[k] then
+               nameSet[k] = true;
+               uniqueNames:Add( k );
+       end
+end
+
+for i=1, #procedures do
+       local p = procedures[i];
+       procTable[p.name] = procTable[p.name] or {};
+       local key = p.vendor or "core";
+       procTable[p.name][key] = p;
+end
+
+local priorityList = List{ "core", "ARB", "OES", "KHR" };
+
+local typedefs = List();
+local pointers = List();
+local loader = List();
+
+for s, str in ipairs( uniqueNames ) do
+       pointers:Add( ("\t%s %s = NULL;")( pfnFormat( str:upper() ), str ) );
+       local typeDefGenerated = false;
+       for i=1, #priorityList do
+               local k = priorityList[i];
+               local proc = procTable[str][k]
+               if proc then
+                       if not typeDefGenerated then
+                               typedefs:Add( GetProcedureTypedef( proc ) );
+                               typeDefGenerated = true;
+                       end
+                       local vendor = k == "core" and "" or k;
+                       loader:AddFormat(
+                               '\tif (!%s) %s = (%s)cmgr->getProcAddress("%s");\n',
+                               str, str, pfnFormat( proc.name:upper() ), ("gl%s%s")(str,vendor)
+                       );
+               end
+       end
+end
+
+
+------------ Write files ------------
+
+-- Write loader header
+local f = io.open( sourceTreePath .. "/include/mt_opengl.h", "wb" );
+f:write[[
+// This code was generated by scripts/BindingGenerator.lua
+// Do not modify it, modify and run the generator instead.
+
+#pragma once
+
+#include <string>
+#include <unordered_set>
+#include "IrrCompileConfig.h"
+#include "irrTypes.h"
+#include "IContextManager.h"
+#include <KHR/khrplatform.h>
+
+#ifndef APIENTRY
+       #define APIENTRY
+#endif
+#ifndef APIENTRYP
+       #define APIENTRYP APIENTRY *
+#endif
+#ifndef GLAPI
+       #define GLAPI extern
+#endif
+
+]];
+
+f:write[[
+class OpenGLProcedures {
+private:
+]];
+f:write( definitions:Concat( "\n" ) );
+f:write( "\n" );
+f:write[[
+       // The script will miss this particular typedef thinking it's a PFN,
+       // so we have to paste it in manually. It's the only such type in OpenGL.
+       typedef void (APIENTRY *GLDEBUGPROC)
+               (GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam);
+
+]]
+f:write( typedefs:Concat( "\n" ) );
+f:write( "\n\n" );
+f:write [[
+       std::unordered_set<std::string> extensions;
+public:
+       // Call this once after creating the context.
+       void LoadAllProcedures(irr::video::IContextManager *cmgr);
+       // Check if an extension is supported.
+       inline bool IsExtensionPresent(const std::string &ext)
+       {
+               return extensions.find(ext) != extensions.end();
+       }
+
+]];
+f:write( pointers:Concat( "\n" ) );
+f:write( "\n\n" );
+f:write( cppConsts:Concat( "\n" ) );
+f:write( "\n\n" );
+f:write( "};\n" );
+f:write( "\n//Global GL procedures object.\n" );
+f:write( "IRRLICHT_API extern OpenGLProcedures GL;\n" );
+f:close();
+
+-- Write loader implementation
+f = io.open( sourceTreePath .. "/source/Irrlicht/mt_opengl_loader.cpp", "wb" );
+f:write[[
+#include "mt_opengl.h"
+#include <string>
+#include <sstream>
+
+OpenGLProcedures GL = OpenGLProcedures();
+
+void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
+{
+
+]];
+f:write( loader:Concat() );
+f:write[[
+
+       // get the extension string, chop it up
+       std::string ext_string = std::string((char*)GetString(EXTENSIONS));
+       std::stringstream ext_ss(ext_string);
+       std::string tmp;
+       while (std::getline(ext_ss, tmp, ' '))
+               extensions.emplace(tmp);
+
+}
+]];
+f:close();
index 9f616b5d723e06e3109be09b5f1b5840d9ccb168..dc854c03c4cf315d80599adc369444a81d4c021a 100755 (executable)
@@ -9,6 +9,7 @@
 #include "irrString.h"\r
 #include "irrArray.h"\r
 #include "os.h"\r
+#include <dlfcn.h>\r
 \r
 #if defined(_IRR_COMPILE_WITH_ANDROID_DEVICE_)\r
 #include <android/native_activity.h>\r
@@ -20,7 +21,7 @@ namespace video
 {\r
 \r
 CEGLManager::CEGLManager() : IContextManager(), EglWindow(0), EglDisplay(EGL_NO_DISPLAY),\r
-    EglSurface(EGL_NO_SURFACE), EglContext(EGL_NO_CONTEXT), EglConfig(0), MajorVersion(0), MinorVersion(0)\r
+    EglSurface(EGL_NO_SURFACE), EglContext(EGL_NO_CONTEXT), EglConfig(0), MajorVersion(0), MinorVersion(0), libHandle(NULL)\r
 {\r
        #ifdef _DEBUG\r
        setDebugName("CEGLManager");\r
@@ -109,6 +110,9 @@ void CEGLManager::terminate()
 \r
     MajorVersion = 0;\r
     MinorVersion = 0;\r
+\r
+       if (libHandle)\r
+               dlclose(libHandle);\r
 }\r
 \r
 bool CEGLManager::generateSurface()\r
@@ -590,6 +594,19 @@ const SExposedVideoData& CEGLManager::getContext() const
        return Data;\r
 }\r
 \r
+void* CEGLManager::getProcAddress(const std::string &procName)\r
+{\r
+       void* proc = NULL;\r
+       proc = (void*)eglGetProcAddress(procName.c_str());\r
+       if (!proc) { // fallback\r
+               if (!libHandle)\r
+                       libHandle = dlopen("libGLESv2.so", RTLD_LAZY);\r
+               if (libHandle)\r
+                       proc = dlsym(libHandle, procName.c_str());\r
+       }\r
+       return proc;\r
+}\r
+\r
 bool CEGLManager::swapBuffers()\r
 {\r
     return (eglSwapBuffers(EglDisplay, EglSurface)==EGL_TRUE);\r
index c82d48c67a300e6fd023ac0900625dd14e72997f..58d7f2991f0f2e45183dd37d0e42754565cfeb88 100755 (executable)
@@ -67,6 +67,9 @@ namespace video
 \r
                virtual bool activateContext(const SExposedVideoData& videoData, bool restorePrimaryOnZero) _IRR_OVERRIDE_;\r
 \r
+               // Get procedure address.\r
+               virtual void* getProcAddress(const std::string &procName) _IRR_OVERRIDE_;\r
+\r
                // Swap buffers.\r
                virtual bool swapBuffers() _IRR_OVERRIDE_;\r
 \r
@@ -112,6 +115,8 @@ namespace video
 \r
                EGLint MajorVersion;\r
                EGLint MinorVersion;\r
+\r
+               void* libHandle;\r
        };\r
 }\r
 }\r
index 6edf77947160babcab64d3bb21a14d97bfcca47c..a5dc95db7ce3672c1782c47fe2e9850e9e7d7485 100644 (file)
@@ -7,6 +7,7 @@
 #ifdef _IRR_COMPILE_WITH_GLX_MANAGER_\r
 \r
 #include "os.h"\r
+#include <dlfcn.h>\r
 \r
 #if defined(_IRR_OPENGL_USE_EXTPOINTER_)\r
        #define GL_GLEXT_LEGACY 1\r
@@ -28,7 +29,7 @@ namespace video
 {\r
 \r
 CGLXManager::CGLXManager(const SIrrlichtCreationParameters& params, const SExposedVideoData& videodata, int screennr)\r
-       : Params(params), PrimaryContext(videodata), VisualInfo(0), glxFBConfig(0), GlxWin(0)\r
+       : Params(params), PrimaryContext(videodata), VisualInfo(0), glxFBConfig(0), GlxWin(0), libHandle(NULL)\r
 {\r
        #ifdef _DEBUG\r
        setDebugName("CGLXManager");\r
@@ -279,6 +280,8 @@ bool CGLXManager::initialize(const SIrrlichtCreationParameters& params, const SE
 \r
 void CGLXManager::terminate()\r
 {\r
+       if (libHandle)\r
+               dlclose(libHandle);\r
        memset(&CurrentContext, 0, sizeof(CurrentContext));\r
 }\r
 \r
@@ -428,6 +431,19 @@ void CGLXManager::destroyContext()
        }\r
 }\r
 \r
+void* CGLXManager::getProcAddress(const std::string &procName)\r
+{\r
+       void* proc = NULL;\r
+       proc = (void*)glXGetProcAddressARB(reinterpret_cast<const GLubyte*>(procName.c_str()));\r
+       if (!proc) {\r
+               if (!libHandle)\r
+                       libHandle = dlopen("libGL.so", RTLD_LAZY);\r
+               if (libHandle)\r
+                       proc = dlsym(libHandle, procName.c_str());\r
+       }\r
+       return proc;\r
+}\r
+\r
 bool CGLXManager::swapBuffers()\r
 {\r
        glXSwapBuffers((Display*)CurrentContext.OpenGLLinux.X11Display, CurrentContext.OpenGLLinux.GLXWindow);\r
index ef2566eea2edda35fe40c2f15049a2aa395a327b..d3cb9ad55dc3a398733f1d3100316dd44814b4fc 100644 (file)
@@ -57,6 +57,9 @@ namespace video
         //! Change render context, disable old and activate new defined by videoData\r
         virtual bool activateContext(const SExposedVideoData& videoData, bool restorePrimaryOnZero) _IRR_OVERRIDE_;\r
 \r
+               // Get procedure address.\r
+               virtual void* getProcAddress(const std::string &procName) _IRR_OVERRIDE_;\r
+\r
         // Swap buffers.\r
         virtual bool swapBuffers() _IRR_OVERRIDE_;\r
 \r
@@ -69,6 +72,7 @@ namespace video
         XVisualInfo* VisualInfo;\r
         void* glxFBConfig; // GLXFBConfig\r
         XID GlxWin; // GLXWindow\r
+               void* libHandle; // handle to libGL.so\r
        };\r
 }\r
 }\r
index bb17563f0d111d614158aab78490f93c0ece46c0..6e716afd5aeb63be82816c0b82ecd5259dcacaeb 100644 (file)
@@ -10,6 +10,8 @@ if(CMAKE_BUILD_TYPE STREQUAL "Debug")
        add_definitions(-D_DEBUG)
 endif()
 set(CMAKE_POSITION_INDEPENDENT_CODE TRUE)
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "^(GNU|Clang|AppleClang)$")
        set(CMAKE_CXX_FLAGS_RELEASE "-O3")
@@ -153,6 +155,7 @@ set(IRRDRVROBJ
        CGLXManager.cpp
        CWGLManager.cpp
        CEGLManager.cpp
+       mt_opengl_loader.cpp
 )
 
 set(IRRIMAGEOBJ
index c4e38124a80b562656ed150e657fa6693d4c39da..91ad7cebeccb508300e05f74d6bdfff361a6c04e 100644 (file)
@@ -54,6 +54,9 @@ namespace video
                //! Change render context, disable old and activate new defined by videoData\r
                bool activateContext(const SExposedVideoData& videoData, bool restorePrimaryOnZero) _IRR_OVERRIDE_;\r
 \r
+               // Get procedure address.\r
+               virtual void* getProcAddress(const std::string &procName) _IRR_OVERRIDE_;\r
+\r
         // Swap buffers.\r
         bool swapBuffers();\r
 \r
index 3409a3ef23d5a43e0ad17ab450fec4c61b2dd8a8..7ce6b346305069c1bd411b68b160d35461013bed 100644 (file)
@@ -6,6 +6,7 @@
 \r
 #ifdef _IRR_COMPILE_WITH_NSOGL_MANAGER_\r
 \r
+#include <mach-o/dyld.h>\r
 #include "os.h"\r
 \r
 namespace irr\r
@@ -37,15 +38,15 @@ void CNSOGLManager::terminate()
 }\r
 \r
 bool CNSOGLManager::generateSurface()\r
-{    \r
+{\r
        if (Params.DriverType == video::EDT_OPENGL)\r
        {\r
         int alphaSize = Params.WithAlphaChannel ? 4 : 0;\r
         int depthSize = Params.ZBufferBits;\r
-        \r
+\r
         if (Params.WithAlphaChannel && Params.Bits == 32)\r
             alphaSize = 8;\r
-        \r
+\r
         NSOpenGLPixelFormatAttribute Attribs[] =\r
         {\r
             NSOpenGLPFANoRecovery,\r
@@ -62,7 +63,7 @@ bool CNSOGLManager::generateSurface()
         };\r
 \r
         u32 Steps = 6;\r
-        \r
+\r
         // Choose the best pixel format.\r
         do\r
         {\r
@@ -85,7 +86,7 @@ bool CNSOGLManager::generateSurface()
                 if (Attribs[8])\r
                 {\r
                     Attribs[8] = 0;\r
-                        \r
+\r
                     if (Params.AntiAlias)\r
                     {\r
                         Attribs[10] = 1;\r
@@ -100,7 +101,7 @@ bool CNSOGLManager::generateSurface()
                 if (Attribs[14])\r
                 {\r
                     Attribs[14] = 0;\r
-                        \r
+\r
                     if (Params.AntiAlias)\r
                     {\r
                         Attribs[10] = 1;\r
@@ -131,23 +132,23 @@ bool CNSOGLManager::generateSurface()
                 os::Printer::log("Could not get pixel format.");\r
                 return false;\r
             }\r
-            \r
+\r
             PixelFormat = [[NSOpenGLPixelFormat alloc] initWithAttributes:Attribs];\r
         }\r
         while (PixelFormat == nil);\r
-        \r
+\r
         if (Params.AntiAlias && !Attribs[10])\r
             os::Printer::log("No multisampling.");\r
-        \r
+\r
         if (Params.WithAlphaChannel && !Attribs[8])\r
             os::Printer::log("No alpha.");\r
-        \r
+\r
         if (Params.Stencilbuffer && !Attribs[14])\r
             os::Printer::log("No stencil buffer.");\r
-        \r
+\r
         if (Params.ZBufferBits > Attribs[4])\r
             os::Printer::log("No full depth buffer.");\r
-        \r
+\r
         if (Params.Bits > Attribs[6])\r
             os::Printer::log("No full color buffer.");\r
        }\r
@@ -164,7 +165,7 @@ void CNSOGLManager::destroySurface()
 bool CNSOGLManager::generateContext()\r
 {\r
     NSOpenGLContext* Context = [[NSOpenGLContext alloc] initWithFormat:PixelFormat shareContext:nil];\r
-    \r
+\r
     GLint Vsync = Params.Vsync ? 1 : 0;\r
     [Context setValues:&Vsync forParameter:NSOpenGLCPSwapInterval];\r
 \r
@@ -176,7 +177,7 @@ bool CNSOGLManager::generateContext()
 \r
        // set exposed data\r
        CurrentContext.OpenGLOSX.Context = Context;\r
-    \r
+\r
        if (!PrimaryContext.OpenGLOSX.Context)\r
                PrimaryContext.OpenGLOSX.Context = CurrentContext.OpenGLOSX.Context;\r
 \r
@@ -196,7 +197,7 @@ bool CNSOGLManager::activateContext(const SExposedVideoData& videoData, bool res
         if ((NSOpenGLContext*)videoData.OpenGLOSX.Context != [NSOpenGLContext currentContext])\r
         {\r
             [(NSOpenGLContext*)videoData.OpenGLOSX.Context makeCurrentContext];\r
-            \r
+\r
             CurrentContext = videoData;\r
         }\r
     }\r
@@ -206,11 +207,11 @@ bool CNSOGLManager::activateContext(const SExposedVideoData& videoData, bool res
         if ((NSOpenGLContext*)PrimaryContext.OpenGLOSX.Context != [NSOpenGLContext currentContext])\r
         {\r
             [(NSOpenGLContext*)PrimaryContext.OpenGLOSX.Context makeCurrentContext];\r
-            \r
+\r
             CurrentContext = PrimaryContext;\r
         }\r
     }\r
-    \r
+\r
        return true;\r
 }\r
 \r
@@ -225,11 +226,23 @@ void CNSOGLManager::destroyContext()
         [(NSOpenGLContext *)CurrentContext.OpenGLOSX.Context clearDrawable];\r
         [(NSOpenGLContext *)CurrentContext.OpenGLOSX.Context release];\r
                [NSOpenGLContext clearCurrentContext];\r
-        \r
+\r
                CurrentContext.OpenGLOSX.Context = nil;\r
        }\r
 }\r
 \r
+// It appears that there is no separate GL proc address getter on OSX.\r
+// https://developer.apple.com/library/archive/documentation/GraphicsImaging/Conceptual/OpenGL-MacProgGuide/opengl_entrypts/opengl_entrypts.html\r
+void* CNSOGLManager::getProcAddress(const std::string &procName)\r
+{\r
+       NSSymbol symbol = NULL;\r
+       // Allocate a buffer for the name, an underscore prefix, and a cstring terminator.\r
+       std::string mangledName = "_" + procName;\r
+       if (NSIsSymbolNameDefined(mangledName.c_str()))\r
+               symbol = NSLookupAndBindSymbol(mangledName.c_str());\r
+       return symbol ? NSAddressOfSymbol(symbol) : NULL;\r
+}\r
+\r
 bool CNSOGLManager::swapBuffers()\r
 {\r
     [(NSOpenGLContext*)CurrentContext.OpenGLOSX.Context flushBuffer];\r
index a36f911abd8fd4e9789031f30df7c158b2ceaf8c..13a257aaaca9fcb676219896e2fed99a4bafcb0e 100644 (file)
@@ -29,6 +29,8 @@
 #include "android_native_app_glue.h"\r
 #endif\r
 \r
+#include "mt_opengl.h"\r
+\r
 namespace irr\r
 {\r
 namespace video\r
@@ -76,6 +78,7 @@ COGLES2Driver::COGLES2Driver(const SIrrlichtCreationParameters& params, io::IFil
        ContextManager->generateContext();\r
        ExposedData = ContextManager->getContext();\r
        ContextManager->activateContext(ExposedData, false);\r
+       GL.LoadAllProcedures(ContextManager);\r
 }\r
 \r
 COGLES2Driver::~COGLES2Driver()\r
index 604bd7e27362c0387770a927efd336cbd2df25c9..454f0e30b0bcb67d934a7a46f6eea2064f4d3060 100644 (file)
@@ -20,6 +20,8 @@
 #include "COpenGLCoreTexture.h"\r
 #include "COpenGLCoreRenderTarget.h"\r
 \r
+#include "mt_opengl.h"\r
+\r
 #ifdef _IRR_COMPILE_WITH_SDL_DEVICE_\r
 #include <SDL/SDL.h>\r
 #endif\r
@@ -80,6 +82,8 @@ bool COpenGLDriver::initDriver()
        extGlSwapInterval(Params.Vsync ? 1 : 0);\r
 #endif\r
 \r
+       GL.LoadAllProcedures(ContextManager);\r
+\r
        return true;\r
 }\r
 \r
index b807acb26e617f27b91c76646a090831d7843fb0..3d6e4f803715ad40bf9eccbb6656951f3cd1d9ea 100644 (file)
@@ -21,7 +21,7 @@ namespace video
 {\r
 \r
 CWGLManager::CWGLManager()\r
-       : PrimaryContext(SExposedVideoData(0)), PixelFormat(0)\r
+       : PrimaryContext(SExposedVideoData(0)), PixelFormat(0), libHandle(NULL)\r
 {\r
        #ifdef _DEBUG\r
        setDebugName("CWGLManager");\r
@@ -322,6 +322,8 @@ void CWGLManager::terminate()
        if (PrimaryContext.OpenGLWin32.HDc && PrimaryContext.OpenGLWin32.HDc == CurrentContext.OpenGLWin32.HDc)\r
                memset(&PrimaryContext, 0, sizeof(PrimaryContext));\r
        memset(&CurrentContext, 0, sizeof(CurrentContext));\r
+       if (libHandle)\r
+               FreeLibrary(libHandle);\r
 }\r
 \r
 bool CWGLManager::generateSurface()\r
@@ -367,7 +369,7 @@ bool CWGLManager::generateSurface()
                        if (PixelFormat)\r
                                break;\r
                }\r
-               \r
+\r
                // set pixel format\r
                if (!SetPixelFormat(HDc, PixelFormat, &pfd))\r
                {\r
@@ -490,6 +492,19 @@ void CWGLManager::destroyContext()
        }\r
 }\r
 \r
+void* CWGLManager::getProcAddress(const std::string &procName)\r
+{\r
+       void* proc = NULL;\r
+       proc = (void*)wglGetProcAddress(procName.c_str());\r
+       if (!proc) { // Fallback\r
+               if (!libHandle)\r
+                       libHandle = LoadLibraryA("opengl32.dll");\r
+               if (libHandle)\r
+                       proc = (void*)GetProcAddress(libHandle, procName.c_str());\r
+       }\r
+       return proc;\r
+}\r
+\r
 bool CWGLManager::swapBuffers()\r
 {\r
        return SwapBuffers((HDC)CurrentContext.OpenGLWin32.HDc) == TRUE;\r
index ff4af34c6e39a3f840874906a46bd057966a9c91..23d1485fafcbdef9566ad20ffb73d231a3d69aa1 100644 (file)
@@ -16,6 +16,7 @@
 \r
 #define WIN32_LEAN_AND_MEAN\r
 #include <windows.h>\r
+#include <libloaderapi.h>\r
 \r
 namespace irr\r
 {\r
@@ -55,6 +56,9 @@ namespace video
                //! Change render context, disable old and activate new defined by videoData\r
                virtual bool activateContext(const SExposedVideoData& videoData, bool restorePrimaryOnZero) _IRR_OVERRIDE_;\r
 \r
+               // Get procedure address.\r
+               virtual void* getProcAddress(const std::string &procName) _IRR_OVERRIDE_;\r
+\r
         // Swap buffers.\r
         virtual bool swapBuffers() _IRR_OVERRIDE_;\r
 \r
@@ -66,6 +70,8 @@ namespace video
                PIXELFORMATDESCRIPTOR pfd;\r
                ECOLOR_FORMAT ColorFormat;\r
         void* FunctionPointers[1];\r
+\r
+               HMODULE libHandle;\r
        };\r
 }\r
 }\r
diff --git a/source/Irrlicht/mt_opengl_loader.cpp b/source/Irrlicht/mt_opengl_loader.cpp
new file mode 100755 (executable)
index 0000000..96d7587
--- /dev/null
@@ -0,0 +1,766 @@
+#include "mt_opengl.h"
+#include <string>
+#include <sstream>
+
+OpenGLProcedures GL = OpenGLProcedures();
+
+void OpenGLProcedures::LoadAllProcedures(irr::video::IContextManager *cmgr)
+{
+
+       if (!CullFace) CullFace = (PFNGLCULLFACEPROC_MT)cmgr->getProcAddress("glCullFace");
+       if (!FrontFace) FrontFace = (PFNGLFRONTFACEPROC_MT)cmgr->getProcAddress("glFrontFace");
+       if (!Hint) Hint = (PFNGLHINTPROC_MT)cmgr->getProcAddress("glHint");
+       if (!LineWidth) LineWidth = (PFNGLLINEWIDTHPROC_MT)cmgr->getProcAddress("glLineWidth");
+       if (!PointSize) PointSize = (PFNGLPOINTSIZEPROC_MT)cmgr->getProcAddress("glPointSize");
+       if (!PolygonMode) PolygonMode = (PFNGLPOLYGONMODEPROC_MT)cmgr->getProcAddress("glPolygonMode");
+       if (!Scissor) Scissor = (PFNGLSCISSORPROC_MT)cmgr->getProcAddress("glScissor");
+       if (!TexParameterf) TexParameterf = (PFNGLTEXPARAMETERFPROC_MT)cmgr->getProcAddress("glTexParameterf");
+       if (!TexParameterfv) TexParameterfv = (PFNGLTEXPARAMETERFVPROC_MT)cmgr->getProcAddress("glTexParameterfv");
+       if (!TexParameteri) TexParameteri = (PFNGLTEXPARAMETERIPROC_MT)cmgr->getProcAddress("glTexParameteri");
+       if (!TexParameteriv) TexParameteriv = (PFNGLTEXPARAMETERIVPROC_MT)cmgr->getProcAddress("glTexParameteriv");
+       if (!TexImage1D) TexImage1D = (PFNGLTEXIMAGE1DPROC_MT)cmgr->getProcAddress("glTexImage1D");
+       if (!TexImage2D) TexImage2D = (PFNGLTEXIMAGE2DPROC_MT)cmgr->getProcAddress("glTexImage2D");
+       if (!DrawBuffer) DrawBuffer = (PFNGLDRAWBUFFERPROC_MT)cmgr->getProcAddress("glDrawBuffer");
+       if (!Clear) Clear = (PFNGLCLEARPROC_MT)cmgr->getProcAddress("glClear");
+       if (!ClearColor) ClearColor = (PFNGLCLEARCOLORPROC_MT)cmgr->getProcAddress("glClearColor");
+       if (!ClearStencil) ClearStencil = (PFNGLCLEARSTENCILPROC_MT)cmgr->getProcAddress("glClearStencil");
+       if (!ClearDepth) ClearDepth = (PFNGLCLEARDEPTHPROC_MT)cmgr->getProcAddress("glClearDepth");
+       if (!StencilMask) StencilMask = (PFNGLSTENCILMASKPROC_MT)cmgr->getProcAddress("glStencilMask");
+       if (!ColorMask) ColorMask = (PFNGLCOLORMASKPROC_MT)cmgr->getProcAddress("glColorMask");
+       if (!DepthMask) DepthMask = (PFNGLDEPTHMASKPROC_MT)cmgr->getProcAddress("glDepthMask");
+       if (!Disable) Disable = (PFNGLDISABLEPROC_MT)cmgr->getProcAddress("glDisable");
+       if (!Enable) Enable = (PFNGLENABLEPROC_MT)cmgr->getProcAddress("glEnable");
+       if (!Finish) Finish = (PFNGLFINISHPROC_MT)cmgr->getProcAddress("glFinish");
+       if (!Flush) Flush = (PFNGLFLUSHPROC_MT)cmgr->getProcAddress("glFlush");
+       if (!BlendFunc) BlendFunc = (PFNGLBLENDFUNCPROC_MT)cmgr->getProcAddress("glBlendFunc");
+       if (!LogicOp) LogicOp = (PFNGLLOGICOPPROC_MT)cmgr->getProcAddress("glLogicOp");
+       if (!StencilFunc) StencilFunc = (PFNGLSTENCILFUNCPROC_MT)cmgr->getProcAddress("glStencilFunc");
+       if (!StencilOp) StencilOp = (PFNGLSTENCILOPPROC_MT)cmgr->getProcAddress("glStencilOp");
+       if (!DepthFunc) DepthFunc = (PFNGLDEPTHFUNCPROC_MT)cmgr->getProcAddress("glDepthFunc");
+       if (!PixelStoref) PixelStoref = (PFNGLPIXELSTOREFPROC_MT)cmgr->getProcAddress("glPixelStoref");
+       if (!PixelStorei) PixelStorei = (PFNGLPIXELSTOREIPROC_MT)cmgr->getProcAddress("glPixelStorei");
+       if (!ReadBuffer) ReadBuffer = (PFNGLREADBUFFERPROC_MT)cmgr->getProcAddress("glReadBuffer");
+       if (!ReadPixels) ReadPixels = (PFNGLREADPIXELSPROC_MT)cmgr->getProcAddress("glReadPixels");
+       if (!GetBooleanv) GetBooleanv = (PFNGLGETBOOLEANVPROC_MT)cmgr->getProcAddress("glGetBooleanv");
+       if (!GetDoublev) GetDoublev = (PFNGLGETDOUBLEVPROC_MT)cmgr->getProcAddress("glGetDoublev");
+       if (!GetError) GetError = (PFNGLGETERRORPROC_MT)cmgr->getProcAddress("glGetError");
+       if (!GetFloatv) GetFloatv = (PFNGLGETFLOATVPROC_MT)cmgr->getProcAddress("glGetFloatv");
+       if (!GetIntegerv) GetIntegerv = (PFNGLGETINTEGERVPROC_MT)cmgr->getProcAddress("glGetIntegerv");
+       if (!GetString) GetString = (PFNGLGETSTRINGPROC_MT)cmgr->getProcAddress("glGetString");
+       if (!GetTexImage) GetTexImage = (PFNGLGETTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetTexImage");
+       if (!GetTexParameterfv) GetTexParameterfv = (PFNGLGETTEXPARAMETERFVPROC_MT)cmgr->getProcAddress("glGetTexParameterfv");
+       if (!GetTexParameteriv) GetTexParameteriv = (PFNGLGETTEXPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetTexParameteriv");
+       if (!GetTexLevelParameterfv) GetTexLevelParameterfv = (PFNGLGETTEXLEVELPARAMETERFVPROC_MT)cmgr->getProcAddress("glGetTexLevelParameterfv");
+       if (!GetTexLevelParameteriv) GetTexLevelParameteriv = (PFNGLGETTEXLEVELPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetTexLevelParameteriv");
+       if (!IsEnabled) IsEnabled = (PFNGLISENABLEDPROC_MT)cmgr->getProcAddress("glIsEnabled");
+       if (!DepthRange) DepthRange = (PFNGLDEPTHRANGEPROC_MT)cmgr->getProcAddress("glDepthRange");
+       if (!Viewport) Viewport = (PFNGLVIEWPORTPROC_MT)cmgr->getProcAddress("glViewport");
+       if (!DrawArrays) DrawArrays = (PFNGLDRAWARRAYSPROC_MT)cmgr->getProcAddress("glDrawArrays");
+       if (!DrawElements) DrawElements = (PFNGLDRAWELEMENTSPROC_MT)cmgr->getProcAddress("glDrawElements");
+       if (!GetPointerv) GetPointerv = (PFNGLGETPOINTERVPROC_MT)cmgr->getProcAddress("glGetPointerv");
+       if (!PolygonOffset) PolygonOffset = (PFNGLPOLYGONOFFSETPROC_MT)cmgr->getProcAddress("glPolygonOffset");
+       if (!CopyTexImage1D) CopyTexImage1D = (PFNGLCOPYTEXIMAGE1DPROC_MT)cmgr->getProcAddress("glCopyTexImage1D");
+       if (!CopyTexImage2D) CopyTexImage2D = (PFNGLCOPYTEXIMAGE2DPROC_MT)cmgr->getProcAddress("glCopyTexImage2D");
+       if (!CopyTexSubImage1D) CopyTexSubImage1D = (PFNGLCOPYTEXSUBIMAGE1DPROC_MT)cmgr->getProcAddress("glCopyTexSubImage1D");
+       if (!CopyTexSubImage2D) CopyTexSubImage2D = (PFNGLCOPYTEXSUBIMAGE2DPROC_MT)cmgr->getProcAddress("glCopyTexSubImage2D");
+       if (!TexSubImage1D) TexSubImage1D = (PFNGLTEXSUBIMAGE1DPROC_MT)cmgr->getProcAddress("glTexSubImage1D");
+       if (!TexSubImage2D) TexSubImage2D = (PFNGLTEXSUBIMAGE2DPROC_MT)cmgr->getProcAddress("glTexSubImage2D");
+       if (!BindTexture) BindTexture = (PFNGLBINDTEXTUREPROC_MT)cmgr->getProcAddress("glBindTexture");
+       if (!DeleteTextures) DeleteTextures = (PFNGLDELETETEXTURESPROC_MT)cmgr->getProcAddress("glDeleteTextures");
+       if (!GenTextures) GenTextures = (PFNGLGENTEXTURESPROC_MT)cmgr->getProcAddress("glGenTextures");
+       if (!IsTexture) IsTexture = (PFNGLISTEXTUREPROC_MT)cmgr->getProcAddress("glIsTexture");
+       if (!DrawRangeElements) DrawRangeElements = (PFNGLDRAWRANGEELEMENTSPROC_MT)cmgr->getProcAddress("glDrawRangeElements");
+       if (!TexImage3D) TexImage3D = (PFNGLTEXIMAGE3DPROC_MT)cmgr->getProcAddress("glTexImage3D");
+       if (!TexSubImage3D) TexSubImage3D = (PFNGLTEXSUBIMAGE3DPROC_MT)cmgr->getProcAddress("glTexSubImage3D");
+       if (!CopyTexSubImage3D) CopyTexSubImage3D = (PFNGLCOPYTEXSUBIMAGE3DPROC_MT)cmgr->getProcAddress("glCopyTexSubImage3D");
+       if (!ActiveTexture) ActiveTexture = (PFNGLACTIVETEXTUREPROC_MT)cmgr->getProcAddress("glActiveTexture");
+       if (!SampleCoverage) SampleCoverage = (PFNGLSAMPLECOVERAGEPROC_MT)cmgr->getProcAddress("glSampleCoverage");
+       if (!CompressedTexImage3D) CompressedTexImage3D = (PFNGLCOMPRESSEDTEXIMAGE3DPROC_MT)cmgr->getProcAddress("glCompressedTexImage3D");
+       if (!CompressedTexImage2D) CompressedTexImage2D = (PFNGLCOMPRESSEDTEXIMAGE2DPROC_MT)cmgr->getProcAddress("glCompressedTexImage2D");
+       if (!CompressedTexImage1D) CompressedTexImage1D = (PFNGLCOMPRESSEDTEXIMAGE1DPROC_MT)cmgr->getProcAddress("glCompressedTexImage1D");
+       if (!CompressedTexSubImage3D) CompressedTexSubImage3D = (PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC_MT)cmgr->getProcAddress("glCompressedTexSubImage3D");
+       if (!CompressedTexSubImage2D) CompressedTexSubImage2D = (PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC_MT)cmgr->getProcAddress("glCompressedTexSubImage2D");
+       if (!CompressedTexSubImage1D) CompressedTexSubImage1D = (PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC_MT)cmgr->getProcAddress("glCompressedTexSubImage1D");
+       if (!GetCompressedTexImage) GetCompressedTexImage = (PFNGLGETCOMPRESSEDTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetCompressedTexImage");
+       if (!BlendFuncSeparate) BlendFuncSeparate = (PFNGLBLENDFUNCSEPARATEPROC_MT)cmgr->getProcAddress("glBlendFuncSeparate");
+       if (!MultiDrawArrays) MultiDrawArrays = (PFNGLMULTIDRAWARRAYSPROC_MT)cmgr->getProcAddress("glMultiDrawArrays");
+       if (!MultiDrawElements) MultiDrawElements = (PFNGLMULTIDRAWELEMENTSPROC_MT)cmgr->getProcAddress("glMultiDrawElements");
+       if (!PointParameterf) PointParameterf = (PFNGLPOINTPARAMETERFPROC_MT)cmgr->getProcAddress("glPointParameterf");
+       if (!PointParameterfv) PointParameterfv = (PFNGLPOINTPARAMETERFVPROC_MT)cmgr->getProcAddress("glPointParameterfv");
+       if (!PointParameteri) PointParameteri = (PFNGLPOINTPARAMETERIPROC_MT)cmgr->getProcAddress("glPointParameteri");
+       if (!PointParameteriv) PointParameteriv = (PFNGLPOINTPARAMETERIVPROC_MT)cmgr->getProcAddress("glPointParameteriv");
+       if (!BlendColor) BlendColor = (PFNGLBLENDCOLORPROC_MT)cmgr->getProcAddress("glBlendColor");
+       if (!BlendEquation) BlendEquation = (PFNGLBLENDEQUATIONPROC_MT)cmgr->getProcAddress("glBlendEquation");
+       if (!GenQueries) GenQueries = (PFNGLGENQUERIESPROC_MT)cmgr->getProcAddress("glGenQueries");
+       if (!DeleteQueries) DeleteQueries = (PFNGLDELETEQUERIESPROC_MT)cmgr->getProcAddress("glDeleteQueries");
+       if (!IsQuery) IsQuery = (PFNGLISQUERYPROC_MT)cmgr->getProcAddress("glIsQuery");
+       if (!BeginQuery) BeginQuery = (PFNGLBEGINQUERYPROC_MT)cmgr->getProcAddress("glBeginQuery");
+       if (!EndQuery) EndQuery = (PFNGLENDQUERYPROC_MT)cmgr->getProcAddress("glEndQuery");
+       if (!GetQueryiv) GetQueryiv = (PFNGLGETQUERYIVPROC_MT)cmgr->getProcAddress("glGetQueryiv");
+       if (!GetQueryObjectiv) GetQueryObjectiv = (PFNGLGETQUERYOBJECTIVPROC_MT)cmgr->getProcAddress("glGetQueryObjectiv");
+       if (!GetQueryObjectuiv) GetQueryObjectuiv = (PFNGLGETQUERYOBJECTUIVPROC_MT)cmgr->getProcAddress("glGetQueryObjectuiv");
+       if (!BindBuffer) BindBuffer = (PFNGLBINDBUFFERPROC_MT)cmgr->getProcAddress("glBindBuffer");
+       if (!DeleteBuffers) DeleteBuffers = (PFNGLDELETEBUFFERSPROC_MT)cmgr->getProcAddress("glDeleteBuffers");
+       if (!GenBuffers) GenBuffers = (PFNGLGENBUFFERSPROC_MT)cmgr->getProcAddress("glGenBuffers");
+       if (!IsBuffer) IsBuffer = (PFNGLISBUFFERPROC_MT)cmgr->getProcAddress("glIsBuffer");
+       if (!BufferData) BufferData = (PFNGLBUFFERDATAPROC_MT)cmgr->getProcAddress("glBufferData");
+       if (!BufferSubData) BufferSubData = (PFNGLBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glBufferSubData");
+       if (!GetBufferSubData) GetBufferSubData = (PFNGLGETBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glGetBufferSubData");
+       if (!MapBuffer) MapBuffer = (PFNGLMAPBUFFERPROC_MT)cmgr->getProcAddress("glMapBuffer");
+       if (!UnmapBuffer) UnmapBuffer = (PFNGLUNMAPBUFFERPROC_MT)cmgr->getProcAddress("glUnmapBuffer");
+       if (!GetBufferParameteriv) GetBufferParameteriv = (PFNGLGETBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetBufferParameteriv");
+       if (!GetBufferPointerv) GetBufferPointerv = (PFNGLGETBUFFERPOINTERVPROC_MT)cmgr->getProcAddress("glGetBufferPointerv");
+       if (!BlendEquationSeparate) BlendEquationSeparate = (PFNGLBLENDEQUATIONSEPARATEPROC_MT)cmgr->getProcAddress("glBlendEquationSeparate");
+       if (!DrawBuffers) DrawBuffers = (PFNGLDRAWBUFFERSPROC_MT)cmgr->getProcAddress("glDrawBuffers");
+       if (!StencilOpSeparate) StencilOpSeparate = (PFNGLSTENCILOPSEPARATEPROC_MT)cmgr->getProcAddress("glStencilOpSeparate");
+       if (!StencilFuncSeparate) StencilFuncSeparate = (PFNGLSTENCILFUNCSEPARATEPROC_MT)cmgr->getProcAddress("glStencilFuncSeparate");
+       if (!StencilMaskSeparate) StencilMaskSeparate = (PFNGLSTENCILMASKSEPARATEPROC_MT)cmgr->getProcAddress("glStencilMaskSeparate");
+       if (!AttachShader) AttachShader = (PFNGLATTACHSHADERPROC_MT)cmgr->getProcAddress("glAttachShader");
+       if (!BindAttribLocation) BindAttribLocation = (PFNGLBINDATTRIBLOCATIONPROC_MT)cmgr->getProcAddress("glBindAttribLocation");
+       if (!CompileShader) CompileShader = (PFNGLCOMPILESHADERPROC_MT)cmgr->getProcAddress("glCompileShader");
+       if (!CreateProgram) CreateProgram = (PFNGLCREATEPROGRAMPROC_MT)cmgr->getProcAddress("glCreateProgram");
+       if (!CreateShader) CreateShader = (PFNGLCREATESHADERPROC_MT)cmgr->getProcAddress("glCreateShader");
+       if (!DeleteProgram) DeleteProgram = (PFNGLDELETEPROGRAMPROC_MT)cmgr->getProcAddress("glDeleteProgram");
+       if (!DeleteShader) DeleteShader = (PFNGLDELETESHADERPROC_MT)cmgr->getProcAddress("glDeleteShader");
+       if (!DetachShader) DetachShader = (PFNGLDETACHSHADERPROC_MT)cmgr->getProcAddress("glDetachShader");
+       if (!DisableVertexAttribArray) DisableVertexAttribArray = (PFNGLDISABLEVERTEXATTRIBARRAYPROC_MT)cmgr->getProcAddress("glDisableVertexAttribArray");
+       if (!EnableVertexAttribArray) EnableVertexAttribArray = (PFNGLENABLEVERTEXATTRIBARRAYPROC_MT)cmgr->getProcAddress("glEnableVertexAttribArray");
+       if (!GetActiveAttrib) GetActiveAttrib = (PFNGLGETACTIVEATTRIBPROC_MT)cmgr->getProcAddress("glGetActiveAttrib");
+       if (!GetActiveUniform) GetActiveUniform = (PFNGLGETACTIVEUNIFORMPROC_MT)cmgr->getProcAddress("glGetActiveUniform");
+       if (!GetAttachedShaders) GetAttachedShaders = (PFNGLGETATTACHEDSHADERSPROC_MT)cmgr->getProcAddress("glGetAttachedShaders");
+       if (!GetAttribLocation) GetAttribLocation = (PFNGLGETATTRIBLOCATIONPROC_MT)cmgr->getProcAddress("glGetAttribLocation");
+       if (!GetProgramiv) GetProgramiv = (PFNGLGETPROGRAMIVPROC_MT)cmgr->getProcAddress("glGetProgramiv");
+       if (!GetProgramInfoLog) GetProgramInfoLog = (PFNGLGETPROGRAMINFOLOGPROC_MT)cmgr->getProcAddress("glGetProgramInfoLog");
+       if (!GetShaderiv) GetShaderiv = (PFNGLGETSHADERIVPROC_MT)cmgr->getProcAddress("glGetShaderiv");
+       if (!GetShaderInfoLog) GetShaderInfoLog = (PFNGLGETSHADERINFOLOGPROC_MT)cmgr->getProcAddress("glGetShaderInfoLog");
+       if (!GetShaderSource) GetShaderSource = (PFNGLGETSHADERSOURCEPROC_MT)cmgr->getProcAddress("glGetShaderSource");
+       if (!GetUniformLocation) GetUniformLocation = (PFNGLGETUNIFORMLOCATIONPROC_MT)cmgr->getProcAddress("glGetUniformLocation");
+       if (!GetUniformfv) GetUniformfv = (PFNGLGETUNIFORMFVPROC_MT)cmgr->getProcAddress("glGetUniformfv");
+       if (!GetUniformiv) GetUniformiv = (PFNGLGETUNIFORMIVPROC_MT)cmgr->getProcAddress("glGetUniformiv");
+       if (!GetVertexAttribdv) GetVertexAttribdv = (PFNGLGETVERTEXATTRIBDVPROC_MT)cmgr->getProcAddress("glGetVertexAttribdv");
+       if (!GetVertexAttribfv) GetVertexAttribfv = (PFNGLGETVERTEXATTRIBFVPROC_MT)cmgr->getProcAddress("glGetVertexAttribfv");
+       if (!GetVertexAttribiv) GetVertexAttribiv = (PFNGLGETVERTEXATTRIBIVPROC_MT)cmgr->getProcAddress("glGetVertexAttribiv");
+       if (!GetVertexAttribPointerv) GetVertexAttribPointerv = (PFNGLGETVERTEXATTRIBPOINTERVPROC_MT)cmgr->getProcAddress("glGetVertexAttribPointerv");
+       if (!IsProgram) IsProgram = (PFNGLISPROGRAMPROC_MT)cmgr->getProcAddress("glIsProgram");
+       if (!IsShader) IsShader = (PFNGLISSHADERPROC_MT)cmgr->getProcAddress("glIsShader");
+       if (!LinkProgram) LinkProgram = (PFNGLLINKPROGRAMPROC_MT)cmgr->getProcAddress("glLinkProgram");
+       if (!ShaderSource) ShaderSource = (PFNGLSHADERSOURCEPROC_MT)cmgr->getProcAddress("glShaderSource");
+       if (!UseProgram) UseProgram = (PFNGLUSEPROGRAMPROC_MT)cmgr->getProcAddress("glUseProgram");
+       if (!Uniform1f) Uniform1f = (PFNGLUNIFORM1FPROC_MT)cmgr->getProcAddress("glUniform1f");
+       if (!Uniform2f) Uniform2f = (PFNGLUNIFORM2FPROC_MT)cmgr->getProcAddress("glUniform2f");
+       if (!Uniform3f) Uniform3f = (PFNGLUNIFORM3FPROC_MT)cmgr->getProcAddress("glUniform3f");
+       if (!Uniform4f) Uniform4f = (PFNGLUNIFORM4FPROC_MT)cmgr->getProcAddress("glUniform4f");
+       if (!Uniform1i) Uniform1i = (PFNGLUNIFORM1IPROC_MT)cmgr->getProcAddress("glUniform1i");
+       if (!Uniform2i) Uniform2i = (PFNGLUNIFORM2IPROC_MT)cmgr->getProcAddress("glUniform2i");
+       if (!Uniform3i) Uniform3i = (PFNGLUNIFORM3IPROC_MT)cmgr->getProcAddress("glUniform3i");
+       if (!Uniform4i) Uniform4i = (PFNGLUNIFORM4IPROC_MT)cmgr->getProcAddress("glUniform4i");
+       if (!Uniform1fv) Uniform1fv = (PFNGLUNIFORM1FVPROC_MT)cmgr->getProcAddress("glUniform1fv");
+       if (!Uniform2fv) Uniform2fv = (PFNGLUNIFORM2FVPROC_MT)cmgr->getProcAddress("glUniform2fv");
+       if (!Uniform3fv) Uniform3fv = (PFNGLUNIFORM3FVPROC_MT)cmgr->getProcAddress("glUniform3fv");
+       if (!Uniform4fv) Uniform4fv = (PFNGLUNIFORM4FVPROC_MT)cmgr->getProcAddress("glUniform4fv");
+       if (!Uniform1iv) Uniform1iv = (PFNGLUNIFORM1IVPROC_MT)cmgr->getProcAddress("glUniform1iv");
+       if (!Uniform2iv) Uniform2iv = (PFNGLUNIFORM2IVPROC_MT)cmgr->getProcAddress("glUniform2iv");
+       if (!Uniform3iv) Uniform3iv = (PFNGLUNIFORM3IVPROC_MT)cmgr->getProcAddress("glUniform3iv");
+       if (!Uniform4iv) Uniform4iv = (PFNGLUNIFORM4IVPROC_MT)cmgr->getProcAddress("glUniform4iv");
+       if (!UniformMatrix2fv) UniformMatrix2fv = (PFNGLUNIFORMMATRIX2FVPROC_MT)cmgr->getProcAddress("glUniformMatrix2fv");
+       if (!UniformMatrix3fv) UniformMatrix3fv = (PFNGLUNIFORMMATRIX3FVPROC_MT)cmgr->getProcAddress("glUniformMatrix3fv");
+       if (!UniformMatrix4fv) UniformMatrix4fv = (PFNGLUNIFORMMATRIX4FVPROC_MT)cmgr->getProcAddress("glUniformMatrix4fv");
+       if (!ValidateProgram) ValidateProgram = (PFNGLVALIDATEPROGRAMPROC_MT)cmgr->getProcAddress("glValidateProgram");
+       if (!VertexAttrib1d) VertexAttrib1d = (PFNGLVERTEXATTRIB1DPROC_MT)cmgr->getProcAddress("glVertexAttrib1d");
+       if (!VertexAttrib1dv) VertexAttrib1dv = (PFNGLVERTEXATTRIB1DVPROC_MT)cmgr->getProcAddress("glVertexAttrib1dv");
+       if (!VertexAttrib1f) VertexAttrib1f = (PFNGLVERTEXATTRIB1FPROC_MT)cmgr->getProcAddress("glVertexAttrib1f");
+       if (!VertexAttrib1fv) VertexAttrib1fv = (PFNGLVERTEXATTRIB1FVPROC_MT)cmgr->getProcAddress("glVertexAttrib1fv");
+       if (!VertexAttrib1s) VertexAttrib1s = (PFNGLVERTEXATTRIB1SPROC_MT)cmgr->getProcAddress("glVertexAttrib1s");
+       if (!VertexAttrib1sv) VertexAttrib1sv = (PFNGLVERTEXATTRIB1SVPROC_MT)cmgr->getProcAddress("glVertexAttrib1sv");
+       if (!VertexAttrib2d) VertexAttrib2d = (PFNGLVERTEXATTRIB2DPROC_MT)cmgr->getProcAddress("glVertexAttrib2d");
+       if (!VertexAttrib2dv) VertexAttrib2dv = (PFNGLVERTEXATTRIB2DVPROC_MT)cmgr->getProcAddress("glVertexAttrib2dv");
+       if (!VertexAttrib2f) VertexAttrib2f = (PFNGLVERTEXATTRIB2FPROC_MT)cmgr->getProcAddress("glVertexAttrib2f");
+       if (!VertexAttrib2fv) VertexAttrib2fv = (PFNGLVERTEXATTRIB2FVPROC_MT)cmgr->getProcAddress("glVertexAttrib2fv");
+       if (!VertexAttrib2s) VertexAttrib2s = (PFNGLVERTEXATTRIB2SPROC_MT)cmgr->getProcAddress("glVertexAttrib2s");
+       if (!VertexAttrib2sv) VertexAttrib2sv = (PFNGLVERTEXATTRIB2SVPROC_MT)cmgr->getProcAddress("glVertexAttrib2sv");
+       if (!VertexAttrib3d) VertexAttrib3d = (PFNGLVERTEXATTRIB3DPROC_MT)cmgr->getProcAddress("glVertexAttrib3d");
+       if (!VertexAttrib3dv) VertexAttrib3dv = (PFNGLVERTEXATTRIB3DVPROC_MT)cmgr->getProcAddress("glVertexAttrib3dv");
+       if (!VertexAttrib3f) VertexAttrib3f = (PFNGLVERTEXATTRIB3FPROC_MT)cmgr->getProcAddress("glVertexAttrib3f");
+       if (!VertexAttrib3fv) VertexAttrib3fv = (PFNGLVERTEXATTRIB3FVPROC_MT)cmgr->getProcAddress("glVertexAttrib3fv");
+       if (!VertexAttrib3s) VertexAttrib3s = (PFNGLVERTEXATTRIB3SPROC_MT)cmgr->getProcAddress("glVertexAttrib3s");
+       if (!VertexAttrib3sv) VertexAttrib3sv = (PFNGLVERTEXATTRIB3SVPROC_MT)cmgr->getProcAddress("glVertexAttrib3sv");
+       if (!VertexAttrib4Nbv) VertexAttrib4Nbv = (PFNGLVERTEXATTRIB4NBVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nbv");
+       if (!VertexAttrib4Niv) VertexAttrib4Niv = (PFNGLVERTEXATTRIB4NIVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Niv");
+       if (!VertexAttrib4Nsv) VertexAttrib4Nsv = (PFNGLVERTEXATTRIB4NSVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nsv");
+       if (!VertexAttrib4Nub) VertexAttrib4Nub = (PFNGLVERTEXATTRIB4NUBPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nub");
+       if (!VertexAttrib4Nubv) VertexAttrib4Nubv = (PFNGLVERTEXATTRIB4NUBVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nubv");
+       if (!VertexAttrib4Nuiv) VertexAttrib4Nuiv = (PFNGLVERTEXATTRIB4NUIVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nuiv");
+       if (!VertexAttrib4Nusv) VertexAttrib4Nusv = (PFNGLVERTEXATTRIB4NUSVPROC_MT)cmgr->getProcAddress("glVertexAttrib4Nusv");
+       if (!VertexAttrib4bv) VertexAttrib4bv = (PFNGLVERTEXATTRIB4BVPROC_MT)cmgr->getProcAddress("glVertexAttrib4bv");
+       if (!VertexAttrib4d) VertexAttrib4d = (PFNGLVERTEXATTRIB4DPROC_MT)cmgr->getProcAddress("glVertexAttrib4d");
+       if (!VertexAttrib4dv) VertexAttrib4dv = (PFNGLVERTEXATTRIB4DVPROC_MT)cmgr->getProcAddress("glVertexAttrib4dv");
+       if (!VertexAttrib4f) VertexAttrib4f = (PFNGLVERTEXATTRIB4FPROC_MT)cmgr->getProcAddress("glVertexAttrib4f");
+       if (!VertexAttrib4fv) VertexAttrib4fv = (PFNGLVERTEXATTRIB4FVPROC_MT)cmgr->getProcAddress("glVertexAttrib4fv");
+       if (!VertexAttrib4iv) VertexAttrib4iv = (PFNGLVERTEXATTRIB4IVPROC_MT)cmgr->getProcAddress("glVertexAttrib4iv");
+       if (!VertexAttrib4s) VertexAttrib4s = (PFNGLVERTEXATTRIB4SPROC_MT)cmgr->getProcAddress("glVertexAttrib4s");
+       if (!VertexAttrib4sv) VertexAttrib4sv = (PFNGLVERTEXATTRIB4SVPROC_MT)cmgr->getProcAddress("glVertexAttrib4sv");
+       if (!VertexAttrib4ubv) VertexAttrib4ubv = (PFNGLVERTEXATTRIB4UBVPROC_MT)cmgr->getProcAddress("glVertexAttrib4ubv");
+       if (!VertexAttrib4uiv) VertexAttrib4uiv = (PFNGLVERTEXATTRIB4UIVPROC_MT)cmgr->getProcAddress("glVertexAttrib4uiv");
+       if (!VertexAttrib4usv) VertexAttrib4usv = (PFNGLVERTEXATTRIB4USVPROC_MT)cmgr->getProcAddress("glVertexAttrib4usv");
+       if (!VertexAttribPointer) VertexAttribPointer = (PFNGLVERTEXATTRIBPOINTERPROC_MT)cmgr->getProcAddress("glVertexAttribPointer");
+       if (!UniformMatrix2x3fv) UniformMatrix2x3fv = (PFNGLUNIFORMMATRIX2X3FVPROC_MT)cmgr->getProcAddress("glUniformMatrix2x3fv");
+       if (!UniformMatrix3x2fv) UniformMatrix3x2fv = (PFNGLUNIFORMMATRIX3X2FVPROC_MT)cmgr->getProcAddress("glUniformMatrix3x2fv");
+       if (!UniformMatrix2x4fv) UniformMatrix2x4fv = (PFNGLUNIFORMMATRIX2X4FVPROC_MT)cmgr->getProcAddress("glUniformMatrix2x4fv");
+       if (!UniformMatrix4x2fv) UniformMatrix4x2fv = (PFNGLUNIFORMMATRIX4X2FVPROC_MT)cmgr->getProcAddress("glUniformMatrix4x2fv");
+       if (!UniformMatrix3x4fv) UniformMatrix3x4fv = (PFNGLUNIFORMMATRIX3X4FVPROC_MT)cmgr->getProcAddress("glUniformMatrix3x4fv");
+       if (!UniformMatrix4x3fv) UniformMatrix4x3fv = (PFNGLUNIFORMMATRIX4X3FVPROC_MT)cmgr->getProcAddress("glUniformMatrix4x3fv");
+       if (!ColorMaski) ColorMaski = (PFNGLCOLORMASKIPROC_MT)cmgr->getProcAddress("glColorMaski");
+       if (!Enablei) Enablei = (PFNGLENABLEIPROC_MT)cmgr->getProcAddress("glEnablei");
+       if (!Disablei) Disablei = (PFNGLDISABLEIPROC_MT)cmgr->getProcAddress("glDisablei");
+       if (!IsEnabledi) IsEnabledi = (PFNGLISENABLEDIPROC_MT)cmgr->getProcAddress("glIsEnabledi");
+       if (!BeginTransformFeedback) BeginTransformFeedback = (PFNGLBEGINTRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glBeginTransformFeedback");
+       if (!EndTransformFeedback) EndTransformFeedback = (PFNGLENDTRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glEndTransformFeedback");
+       if (!BindBufferRange) BindBufferRange = (PFNGLBINDBUFFERRANGEPROC_MT)cmgr->getProcAddress("glBindBufferRange");
+       if (!BindBufferBase) BindBufferBase = (PFNGLBINDBUFFERBASEPROC_MT)cmgr->getProcAddress("glBindBufferBase");
+       if (!TransformFeedbackVaryings) TransformFeedbackVaryings = (PFNGLTRANSFORMFEEDBACKVARYINGSPROC_MT)cmgr->getProcAddress("glTransformFeedbackVaryings");
+       if (!GetTransformFeedbackVarying) GetTransformFeedbackVarying = (PFNGLGETTRANSFORMFEEDBACKVARYINGPROC_MT)cmgr->getProcAddress("glGetTransformFeedbackVarying");
+       if (!ClampColor) ClampColor = (PFNGLCLAMPCOLORPROC_MT)cmgr->getProcAddress("glClampColor");
+       if (!BeginConditionalRender) BeginConditionalRender = (PFNGLBEGINCONDITIONALRENDERPROC_MT)cmgr->getProcAddress("glBeginConditionalRender");
+       if (!EndConditionalRender) EndConditionalRender = (PFNGLENDCONDITIONALRENDERPROC_MT)cmgr->getProcAddress("glEndConditionalRender");
+       if (!VertexAttribIPointer) VertexAttribIPointer = (PFNGLVERTEXATTRIBIPOINTERPROC_MT)cmgr->getProcAddress("glVertexAttribIPointer");
+       if (!GetVertexAttribIiv) GetVertexAttribIiv = (PFNGLGETVERTEXATTRIBIIVPROC_MT)cmgr->getProcAddress("glGetVertexAttribIiv");
+       if (!GetVertexAttribIuiv) GetVertexAttribIuiv = (PFNGLGETVERTEXATTRIBIUIVPROC_MT)cmgr->getProcAddress("glGetVertexAttribIuiv");
+       if (!VertexAttribI1i) VertexAttribI1i = (PFNGLVERTEXATTRIBI1IPROC_MT)cmgr->getProcAddress("glVertexAttribI1i");
+       if (!VertexAttribI2i) VertexAttribI2i = (PFNGLVERTEXATTRIBI2IPROC_MT)cmgr->getProcAddress("glVertexAttribI2i");
+       if (!VertexAttribI3i) VertexAttribI3i = (PFNGLVERTEXATTRIBI3IPROC_MT)cmgr->getProcAddress("glVertexAttribI3i");
+       if (!VertexAttribI4i) VertexAttribI4i = (PFNGLVERTEXATTRIBI4IPROC_MT)cmgr->getProcAddress("glVertexAttribI4i");
+       if (!VertexAttribI1ui) VertexAttribI1ui = (PFNGLVERTEXATTRIBI1UIPROC_MT)cmgr->getProcAddress("glVertexAttribI1ui");
+       if (!VertexAttribI2ui) VertexAttribI2ui = (PFNGLVERTEXATTRIBI2UIPROC_MT)cmgr->getProcAddress("glVertexAttribI2ui");
+       if (!VertexAttribI3ui) VertexAttribI3ui = (PFNGLVERTEXATTRIBI3UIPROC_MT)cmgr->getProcAddress("glVertexAttribI3ui");
+       if (!VertexAttribI4ui) VertexAttribI4ui = (PFNGLVERTEXATTRIBI4UIPROC_MT)cmgr->getProcAddress("glVertexAttribI4ui");
+       if (!VertexAttribI1iv) VertexAttribI1iv = (PFNGLVERTEXATTRIBI1IVPROC_MT)cmgr->getProcAddress("glVertexAttribI1iv");
+       if (!VertexAttribI2iv) VertexAttribI2iv = (PFNGLVERTEXATTRIBI2IVPROC_MT)cmgr->getProcAddress("glVertexAttribI2iv");
+       if (!VertexAttribI3iv) VertexAttribI3iv = (PFNGLVERTEXATTRIBI3IVPROC_MT)cmgr->getProcAddress("glVertexAttribI3iv");
+       if (!VertexAttribI4iv) VertexAttribI4iv = (PFNGLVERTEXATTRIBI4IVPROC_MT)cmgr->getProcAddress("glVertexAttribI4iv");
+       if (!VertexAttribI1uiv) VertexAttribI1uiv = (PFNGLVERTEXATTRIBI1UIVPROC_MT)cmgr->getProcAddress("glVertexAttribI1uiv");
+       if (!VertexAttribI2uiv) VertexAttribI2uiv = (PFNGLVERTEXATTRIBI2UIVPROC_MT)cmgr->getProcAddress("glVertexAttribI2uiv");
+       if (!VertexAttribI3uiv) VertexAttribI3uiv = (PFNGLVERTEXATTRIBI3UIVPROC_MT)cmgr->getProcAddress("glVertexAttribI3uiv");
+       if (!VertexAttribI4uiv) VertexAttribI4uiv = (PFNGLVERTEXATTRIBI4UIVPROC_MT)cmgr->getProcAddress("glVertexAttribI4uiv");
+       if (!VertexAttribI4bv) VertexAttribI4bv = (PFNGLVERTEXATTRIBI4BVPROC_MT)cmgr->getProcAddress("glVertexAttribI4bv");
+       if (!VertexAttribI4sv) VertexAttribI4sv = (PFNGLVERTEXATTRIBI4SVPROC_MT)cmgr->getProcAddress("glVertexAttribI4sv");
+       if (!VertexAttribI4ubv) VertexAttribI4ubv = (PFNGLVERTEXATTRIBI4UBVPROC_MT)cmgr->getProcAddress("glVertexAttribI4ubv");
+       if (!VertexAttribI4usv) VertexAttribI4usv = (PFNGLVERTEXATTRIBI4USVPROC_MT)cmgr->getProcAddress("glVertexAttribI4usv");
+       if (!GetUniformuiv) GetUniformuiv = (PFNGLGETUNIFORMUIVPROC_MT)cmgr->getProcAddress("glGetUniformuiv");
+       if (!BindFragDataLocation) BindFragDataLocation = (PFNGLBINDFRAGDATALOCATIONPROC_MT)cmgr->getProcAddress("glBindFragDataLocation");
+       if (!GetFragDataLocation) GetFragDataLocation = (PFNGLGETFRAGDATALOCATIONPROC_MT)cmgr->getProcAddress("glGetFragDataLocation");
+       if (!Uniform1ui) Uniform1ui = (PFNGLUNIFORM1UIPROC_MT)cmgr->getProcAddress("glUniform1ui");
+       if (!Uniform2ui) Uniform2ui = (PFNGLUNIFORM2UIPROC_MT)cmgr->getProcAddress("glUniform2ui");
+       if (!Uniform3ui) Uniform3ui = (PFNGLUNIFORM3UIPROC_MT)cmgr->getProcAddress("glUniform3ui");
+       if (!Uniform4ui) Uniform4ui = (PFNGLUNIFORM4UIPROC_MT)cmgr->getProcAddress("glUniform4ui");
+       if (!Uniform1uiv) Uniform1uiv = (PFNGLUNIFORM1UIVPROC_MT)cmgr->getProcAddress("glUniform1uiv");
+       if (!Uniform2uiv) Uniform2uiv = (PFNGLUNIFORM2UIVPROC_MT)cmgr->getProcAddress("glUniform2uiv");
+       if (!Uniform3uiv) Uniform3uiv = (PFNGLUNIFORM3UIVPROC_MT)cmgr->getProcAddress("glUniform3uiv");
+       if (!Uniform4uiv) Uniform4uiv = (PFNGLUNIFORM4UIVPROC_MT)cmgr->getProcAddress("glUniform4uiv");
+       if (!TexParameterIiv) TexParameterIiv = (PFNGLTEXPARAMETERIIVPROC_MT)cmgr->getProcAddress("glTexParameterIiv");
+       if (!TexParameterIuiv) TexParameterIuiv = (PFNGLTEXPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glTexParameterIuiv");
+       if (!GetTexParameterIiv) GetTexParameterIiv = (PFNGLGETTEXPARAMETERIIVPROC_MT)cmgr->getProcAddress("glGetTexParameterIiv");
+       if (!GetTexParameterIuiv) GetTexParameterIuiv = (PFNGLGETTEXPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glGetTexParameterIuiv");
+       if (!ClearBufferiv) ClearBufferiv = (PFNGLCLEARBUFFERIVPROC_MT)cmgr->getProcAddress("glClearBufferiv");
+       if (!ClearBufferuiv) ClearBufferuiv = (PFNGLCLEARBUFFERUIVPROC_MT)cmgr->getProcAddress("glClearBufferuiv");
+       if (!ClearBufferfv) ClearBufferfv = (PFNGLCLEARBUFFERFVPROC_MT)cmgr->getProcAddress("glClearBufferfv");
+       if (!ClearBufferfi) ClearBufferfi = (PFNGLCLEARBUFFERFIPROC_MT)cmgr->getProcAddress("glClearBufferfi");
+       if (!GetStringi) GetStringi = (PFNGLGETSTRINGIPROC_MT)cmgr->getProcAddress("glGetStringi");
+       if (!IsRenderbuffer) IsRenderbuffer = (PFNGLISRENDERBUFFERPROC_MT)cmgr->getProcAddress("glIsRenderbuffer");
+       if (!BindRenderbuffer) BindRenderbuffer = (PFNGLBINDRENDERBUFFERPROC_MT)cmgr->getProcAddress("glBindRenderbuffer");
+       if (!DeleteRenderbuffers) DeleteRenderbuffers = (PFNGLDELETERENDERBUFFERSPROC_MT)cmgr->getProcAddress("glDeleteRenderbuffers");
+       if (!GenRenderbuffers) GenRenderbuffers = (PFNGLGENRENDERBUFFERSPROC_MT)cmgr->getProcAddress("glGenRenderbuffers");
+       if (!RenderbufferStorage) RenderbufferStorage = (PFNGLRENDERBUFFERSTORAGEPROC_MT)cmgr->getProcAddress("glRenderbufferStorage");
+       if (!GetRenderbufferParameteriv) GetRenderbufferParameteriv = (PFNGLGETRENDERBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetRenderbufferParameteriv");
+       if (!IsFramebuffer) IsFramebuffer = (PFNGLISFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glIsFramebuffer");
+       if (!BindFramebuffer) BindFramebuffer = (PFNGLBINDFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glBindFramebuffer");
+       if (!DeleteFramebuffers) DeleteFramebuffers = (PFNGLDELETEFRAMEBUFFERSPROC_MT)cmgr->getProcAddress("glDeleteFramebuffers");
+       if (!GenFramebuffers) GenFramebuffers = (PFNGLGENFRAMEBUFFERSPROC_MT)cmgr->getProcAddress("glGenFramebuffers");
+       if (!CheckFramebufferStatus) CheckFramebufferStatus = (PFNGLCHECKFRAMEBUFFERSTATUSPROC_MT)cmgr->getProcAddress("glCheckFramebufferStatus");
+       if (!FramebufferTexture1D) FramebufferTexture1D = (PFNGLFRAMEBUFFERTEXTURE1DPROC_MT)cmgr->getProcAddress("glFramebufferTexture1D");
+       if (!FramebufferTexture2D) FramebufferTexture2D = (PFNGLFRAMEBUFFERTEXTURE2DPROC_MT)cmgr->getProcAddress("glFramebufferTexture2D");
+       if (!FramebufferTexture3D) FramebufferTexture3D = (PFNGLFRAMEBUFFERTEXTURE3DPROC_MT)cmgr->getProcAddress("glFramebufferTexture3D");
+       if (!FramebufferRenderbuffer) FramebufferRenderbuffer = (PFNGLFRAMEBUFFERRENDERBUFFERPROC_MT)cmgr->getProcAddress("glFramebufferRenderbuffer");
+       if (!GetFramebufferAttachmentParameteriv) GetFramebufferAttachmentParameteriv = (PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetFramebufferAttachmentParameteriv");
+       if (!GenerateMipmap) GenerateMipmap = (PFNGLGENERATEMIPMAPPROC_MT)cmgr->getProcAddress("glGenerateMipmap");
+       if (!BlitFramebuffer) BlitFramebuffer = (PFNGLBLITFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glBlitFramebuffer");
+       if (!RenderbufferStorageMultisample) RenderbufferStorageMultisample = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT)cmgr->getProcAddress("glRenderbufferStorageMultisample");
+       if (!FramebufferTextureLayer) FramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC_MT)cmgr->getProcAddress("glFramebufferTextureLayer");
+       if (!FramebufferTextureLayer) FramebufferTextureLayer = (PFNGLFRAMEBUFFERTEXTURELAYERPROC_MT)cmgr->getProcAddress("glFramebufferTextureLayerARB");
+       if (!MapBufferRange) MapBufferRange = (PFNGLMAPBUFFERRANGEPROC_MT)cmgr->getProcAddress("glMapBufferRange");
+       if (!FlushMappedBufferRange) FlushMappedBufferRange = (PFNGLFLUSHMAPPEDBUFFERRANGEPROC_MT)cmgr->getProcAddress("glFlushMappedBufferRange");
+       if (!BindVertexArray) BindVertexArray = (PFNGLBINDVERTEXARRAYPROC_MT)cmgr->getProcAddress("glBindVertexArray");
+       if (!DeleteVertexArrays) DeleteVertexArrays = (PFNGLDELETEVERTEXARRAYSPROC_MT)cmgr->getProcAddress("glDeleteVertexArrays");
+       if (!GenVertexArrays) GenVertexArrays = (PFNGLGENVERTEXARRAYSPROC_MT)cmgr->getProcAddress("glGenVertexArrays");
+       if (!IsVertexArray) IsVertexArray = (PFNGLISVERTEXARRAYPROC_MT)cmgr->getProcAddress("glIsVertexArray");
+       if (!DrawArraysInstanced) DrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawArraysInstanced");
+       if (!DrawArraysInstanced) DrawArraysInstanced = (PFNGLDRAWARRAYSINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawArraysInstancedARB");
+       if (!DrawElementsInstanced) DrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawElementsInstanced");
+       if (!DrawElementsInstanced) DrawElementsInstanced = (PFNGLDRAWELEMENTSINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawElementsInstancedARB");
+       if (!TexBuffer) TexBuffer = (PFNGLTEXBUFFERPROC_MT)cmgr->getProcAddress("glTexBuffer");
+       if (!TexBuffer) TexBuffer = (PFNGLTEXBUFFERPROC_MT)cmgr->getProcAddress("glTexBufferARB");
+       if (!PrimitiveRestartIndex) PrimitiveRestartIndex = (PFNGLPRIMITIVERESTARTINDEXPROC_MT)cmgr->getProcAddress("glPrimitiveRestartIndex");
+       if (!CopyBufferSubData) CopyBufferSubData = (PFNGLCOPYBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glCopyBufferSubData");
+       if (!GetUniformIndices) GetUniformIndices = (PFNGLGETUNIFORMINDICESPROC_MT)cmgr->getProcAddress("glGetUniformIndices");
+       if (!GetActiveUniformsiv) GetActiveUniformsiv = (PFNGLGETACTIVEUNIFORMSIVPROC_MT)cmgr->getProcAddress("glGetActiveUniformsiv");
+       if (!GetActiveUniformName) GetActiveUniformName = (PFNGLGETACTIVEUNIFORMNAMEPROC_MT)cmgr->getProcAddress("glGetActiveUniformName");
+       if (!GetUniformBlockIndex) GetUniformBlockIndex = (PFNGLGETUNIFORMBLOCKINDEXPROC_MT)cmgr->getProcAddress("glGetUniformBlockIndex");
+       if (!GetActiveUniformBlockiv) GetActiveUniformBlockiv = (PFNGLGETACTIVEUNIFORMBLOCKIVPROC_MT)cmgr->getProcAddress("glGetActiveUniformBlockiv");
+       if (!GetActiveUniformBlockName) GetActiveUniformBlockName = (PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC_MT)cmgr->getProcAddress("glGetActiveUniformBlockName");
+       if (!UniformBlockBinding) UniformBlockBinding = (PFNGLUNIFORMBLOCKBINDINGPROC_MT)cmgr->getProcAddress("glUniformBlockBinding");
+       if (!DrawElementsBaseVertex) DrawElementsBaseVertex = (PFNGLDRAWELEMENTSBASEVERTEXPROC_MT)cmgr->getProcAddress("glDrawElementsBaseVertex");
+       if (!DrawRangeElementsBaseVertex) DrawRangeElementsBaseVertex = (PFNGLDRAWRANGEELEMENTSBASEVERTEXPROC_MT)cmgr->getProcAddress("glDrawRangeElementsBaseVertex");
+       if (!DrawElementsInstancedBaseVertex) DrawElementsInstancedBaseVertex = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXPROC_MT)cmgr->getProcAddress("glDrawElementsInstancedBaseVertex");
+       if (!MultiDrawElementsBaseVertex) MultiDrawElementsBaseVertex = (PFNGLMULTIDRAWELEMENTSBASEVERTEXPROC_MT)cmgr->getProcAddress("glMultiDrawElementsBaseVertex");
+       if (!ProvokingVertex) ProvokingVertex = (PFNGLPROVOKINGVERTEXPROC_MT)cmgr->getProcAddress("glProvokingVertex");
+       if (!FenceSync) FenceSync = (PFNGLFENCESYNCPROC_MT)cmgr->getProcAddress("glFenceSync");
+       if (!IsSync) IsSync = (PFNGLISSYNCPROC_MT)cmgr->getProcAddress("glIsSync");
+       if (!DeleteSync) DeleteSync = (PFNGLDELETESYNCPROC_MT)cmgr->getProcAddress("glDeleteSync");
+       if (!ClientWaitSync) ClientWaitSync = (PFNGLCLIENTWAITSYNCPROC_MT)cmgr->getProcAddress("glClientWaitSync");
+       if (!WaitSync) WaitSync = (PFNGLWAITSYNCPROC_MT)cmgr->getProcAddress("glWaitSync");
+       if (!GetInteger64v) GetInteger64v = (PFNGLGETINTEGER64VPROC_MT)cmgr->getProcAddress("glGetInteger64v");
+       if (!GetSynciv) GetSynciv = (PFNGLGETSYNCIVPROC_MT)cmgr->getProcAddress("glGetSynciv");
+       if (!GetBufferParameteri64v) GetBufferParameteri64v = (PFNGLGETBUFFERPARAMETERI64VPROC_MT)cmgr->getProcAddress("glGetBufferParameteri64v");
+       if (!FramebufferTexture) FramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC_MT)cmgr->getProcAddress("glFramebufferTexture");
+       if (!FramebufferTexture) FramebufferTexture = (PFNGLFRAMEBUFFERTEXTUREPROC_MT)cmgr->getProcAddress("glFramebufferTextureARB");
+       if (!TexImage2DMultisample) TexImage2DMultisample = (PFNGLTEXIMAGE2DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTexImage2DMultisample");
+       if (!TexImage3DMultisample) TexImage3DMultisample = (PFNGLTEXIMAGE3DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTexImage3DMultisample");
+       if (!GetMultisamplefv) GetMultisamplefv = (PFNGLGETMULTISAMPLEFVPROC_MT)cmgr->getProcAddress("glGetMultisamplefv");
+       if (!SampleMaski) SampleMaski = (PFNGLSAMPLEMASKIPROC_MT)cmgr->getProcAddress("glSampleMaski");
+       if (!BindFragDataLocationIndexed) BindFragDataLocationIndexed = (PFNGLBINDFRAGDATALOCATIONINDEXEDPROC_MT)cmgr->getProcAddress("glBindFragDataLocationIndexed");
+       if (!GetFragDataIndex) GetFragDataIndex = (PFNGLGETFRAGDATAINDEXPROC_MT)cmgr->getProcAddress("glGetFragDataIndex");
+       if (!GenSamplers) GenSamplers = (PFNGLGENSAMPLERSPROC_MT)cmgr->getProcAddress("glGenSamplers");
+       if (!DeleteSamplers) DeleteSamplers = (PFNGLDELETESAMPLERSPROC_MT)cmgr->getProcAddress("glDeleteSamplers");
+       if (!IsSampler) IsSampler = (PFNGLISSAMPLERPROC_MT)cmgr->getProcAddress("glIsSampler");
+       if (!BindSampler) BindSampler = (PFNGLBINDSAMPLERPROC_MT)cmgr->getProcAddress("glBindSampler");
+       if (!SamplerParameteri) SamplerParameteri = (PFNGLSAMPLERPARAMETERIPROC_MT)cmgr->getProcAddress("glSamplerParameteri");
+       if (!SamplerParameteriv) SamplerParameteriv = (PFNGLSAMPLERPARAMETERIVPROC_MT)cmgr->getProcAddress("glSamplerParameteriv");
+       if (!SamplerParameterf) SamplerParameterf = (PFNGLSAMPLERPARAMETERFPROC_MT)cmgr->getProcAddress("glSamplerParameterf");
+       if (!SamplerParameterfv) SamplerParameterfv = (PFNGLSAMPLERPARAMETERFVPROC_MT)cmgr->getProcAddress("glSamplerParameterfv");
+       if (!SamplerParameterIiv) SamplerParameterIiv = (PFNGLSAMPLERPARAMETERIIVPROC_MT)cmgr->getProcAddress("glSamplerParameterIiv");
+       if (!SamplerParameterIuiv) SamplerParameterIuiv = (PFNGLSAMPLERPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glSamplerParameterIuiv");
+       if (!GetSamplerParameteriv) GetSamplerParameteriv = (PFNGLGETSAMPLERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetSamplerParameteriv");
+       if (!GetSamplerParameterIiv) GetSamplerParameterIiv = (PFNGLGETSAMPLERPARAMETERIIVPROC_MT)cmgr->getProcAddress("glGetSamplerParameterIiv");
+       if (!GetSamplerParameterfv) GetSamplerParameterfv = (PFNGLGETSAMPLERPARAMETERFVPROC_MT)cmgr->getProcAddress("glGetSamplerParameterfv");
+       if (!GetSamplerParameterIuiv) GetSamplerParameterIuiv = (PFNGLGETSAMPLERPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glGetSamplerParameterIuiv");
+       if (!QueryCounter) QueryCounter = (PFNGLQUERYCOUNTERPROC_MT)cmgr->getProcAddress("glQueryCounter");
+       if (!GetQueryObjecti64v) GetQueryObjecti64v = (PFNGLGETQUERYOBJECTI64VPROC_MT)cmgr->getProcAddress("glGetQueryObjecti64v");
+       if (!GetQueryObjectui64v) GetQueryObjectui64v = (PFNGLGETQUERYOBJECTUI64VPROC_MT)cmgr->getProcAddress("glGetQueryObjectui64v");
+       if (!VertexAttribDivisor) VertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC_MT)cmgr->getProcAddress("glVertexAttribDivisor");
+       if (!VertexAttribDivisor) VertexAttribDivisor = (PFNGLVERTEXATTRIBDIVISORPROC_MT)cmgr->getProcAddress("glVertexAttribDivisorARB");
+       if (!VertexAttribP1ui) VertexAttribP1ui = (PFNGLVERTEXATTRIBP1UIPROC_MT)cmgr->getProcAddress("glVertexAttribP1ui");
+       if (!VertexAttribP1uiv) VertexAttribP1uiv = (PFNGLVERTEXATTRIBP1UIVPROC_MT)cmgr->getProcAddress("glVertexAttribP1uiv");
+       if (!VertexAttribP2ui) VertexAttribP2ui = (PFNGLVERTEXATTRIBP2UIPROC_MT)cmgr->getProcAddress("glVertexAttribP2ui");
+       if (!VertexAttribP2uiv) VertexAttribP2uiv = (PFNGLVERTEXATTRIBP2UIVPROC_MT)cmgr->getProcAddress("glVertexAttribP2uiv");
+       if (!VertexAttribP3ui) VertexAttribP3ui = (PFNGLVERTEXATTRIBP3UIPROC_MT)cmgr->getProcAddress("glVertexAttribP3ui");
+       if (!VertexAttribP3uiv) VertexAttribP3uiv = (PFNGLVERTEXATTRIBP3UIVPROC_MT)cmgr->getProcAddress("glVertexAttribP3uiv");
+       if (!VertexAttribP4ui) VertexAttribP4ui = (PFNGLVERTEXATTRIBP4UIPROC_MT)cmgr->getProcAddress("glVertexAttribP4ui");
+       if (!VertexAttribP4uiv) VertexAttribP4uiv = (PFNGLVERTEXATTRIBP4UIVPROC_MT)cmgr->getProcAddress("glVertexAttribP4uiv");
+       if (!MinSampleShading) MinSampleShading = (PFNGLMINSAMPLESHADINGPROC_MT)cmgr->getProcAddress("glMinSampleShading");
+       if (!MinSampleShading) MinSampleShading = (PFNGLMINSAMPLESHADINGPROC_MT)cmgr->getProcAddress("glMinSampleShadingARB");
+       if (!BlendEquationi) BlendEquationi = (PFNGLBLENDEQUATIONIPROC_MT)cmgr->getProcAddress("glBlendEquationi");
+       if (!BlendEquationi) BlendEquationi = (PFNGLBLENDEQUATIONIPROC_MT)cmgr->getProcAddress("glBlendEquationiARB");
+       if (!BlendEquationSeparatei) BlendEquationSeparatei = (PFNGLBLENDEQUATIONSEPARATEIPROC_MT)cmgr->getProcAddress("glBlendEquationSeparatei");
+       if (!BlendEquationSeparatei) BlendEquationSeparatei = (PFNGLBLENDEQUATIONSEPARATEIPROC_MT)cmgr->getProcAddress("glBlendEquationSeparateiARB");
+       if (!BlendFunci) BlendFunci = (PFNGLBLENDFUNCIPROC_MT)cmgr->getProcAddress("glBlendFunci");
+       if (!BlendFunci) BlendFunci = (PFNGLBLENDFUNCIPROC_MT)cmgr->getProcAddress("glBlendFunciARB");
+       if (!BlendFuncSeparatei) BlendFuncSeparatei = (PFNGLBLENDFUNCSEPARATEIPROC_MT)cmgr->getProcAddress("glBlendFuncSeparatei");
+       if (!BlendFuncSeparatei) BlendFuncSeparatei = (PFNGLBLENDFUNCSEPARATEIPROC_MT)cmgr->getProcAddress("glBlendFuncSeparateiARB");
+       if (!DrawArraysIndirect) DrawArraysIndirect = (PFNGLDRAWARRAYSINDIRECTPROC_MT)cmgr->getProcAddress("glDrawArraysIndirect");
+       if (!DrawElementsIndirect) DrawElementsIndirect = (PFNGLDRAWELEMENTSINDIRECTPROC_MT)cmgr->getProcAddress("glDrawElementsIndirect");
+       if (!Uniform1d) Uniform1d = (PFNGLUNIFORM1DPROC_MT)cmgr->getProcAddress("glUniform1d");
+       if (!Uniform2d) Uniform2d = (PFNGLUNIFORM2DPROC_MT)cmgr->getProcAddress("glUniform2d");
+       if (!Uniform3d) Uniform3d = (PFNGLUNIFORM3DPROC_MT)cmgr->getProcAddress("glUniform3d");
+       if (!Uniform4d) Uniform4d = (PFNGLUNIFORM4DPROC_MT)cmgr->getProcAddress("glUniform4d");
+       if (!Uniform1dv) Uniform1dv = (PFNGLUNIFORM1DVPROC_MT)cmgr->getProcAddress("glUniform1dv");
+       if (!Uniform2dv) Uniform2dv = (PFNGLUNIFORM2DVPROC_MT)cmgr->getProcAddress("glUniform2dv");
+       if (!Uniform3dv) Uniform3dv = (PFNGLUNIFORM3DVPROC_MT)cmgr->getProcAddress("glUniform3dv");
+       if (!Uniform4dv) Uniform4dv = (PFNGLUNIFORM4DVPROC_MT)cmgr->getProcAddress("glUniform4dv");
+       if (!UniformMatrix2dv) UniformMatrix2dv = (PFNGLUNIFORMMATRIX2DVPROC_MT)cmgr->getProcAddress("glUniformMatrix2dv");
+       if (!UniformMatrix3dv) UniformMatrix3dv = (PFNGLUNIFORMMATRIX3DVPROC_MT)cmgr->getProcAddress("glUniformMatrix3dv");
+       if (!UniformMatrix4dv) UniformMatrix4dv = (PFNGLUNIFORMMATRIX4DVPROC_MT)cmgr->getProcAddress("glUniformMatrix4dv");
+       if (!UniformMatrix2x3dv) UniformMatrix2x3dv = (PFNGLUNIFORMMATRIX2X3DVPROC_MT)cmgr->getProcAddress("glUniformMatrix2x3dv");
+       if (!UniformMatrix2x4dv) UniformMatrix2x4dv = (PFNGLUNIFORMMATRIX2X4DVPROC_MT)cmgr->getProcAddress("glUniformMatrix2x4dv");
+       if (!UniformMatrix3x2dv) UniformMatrix3x2dv = (PFNGLUNIFORMMATRIX3X2DVPROC_MT)cmgr->getProcAddress("glUniformMatrix3x2dv");
+       if (!UniformMatrix3x4dv) UniformMatrix3x4dv = (PFNGLUNIFORMMATRIX3X4DVPROC_MT)cmgr->getProcAddress("glUniformMatrix3x4dv");
+       if (!UniformMatrix4x2dv) UniformMatrix4x2dv = (PFNGLUNIFORMMATRIX4X2DVPROC_MT)cmgr->getProcAddress("glUniformMatrix4x2dv");
+       if (!UniformMatrix4x3dv) UniformMatrix4x3dv = (PFNGLUNIFORMMATRIX4X3DVPROC_MT)cmgr->getProcAddress("glUniformMatrix4x3dv");
+       if (!GetUniformdv) GetUniformdv = (PFNGLGETUNIFORMDVPROC_MT)cmgr->getProcAddress("glGetUniformdv");
+       if (!GetSubroutineUniformLocation) GetSubroutineUniformLocation = (PFNGLGETSUBROUTINEUNIFORMLOCATIONPROC_MT)cmgr->getProcAddress("glGetSubroutineUniformLocation");
+       if (!GetSubroutineIndex) GetSubroutineIndex = (PFNGLGETSUBROUTINEINDEXPROC_MT)cmgr->getProcAddress("glGetSubroutineIndex");
+       if (!GetActiveSubroutineUniformiv) GetActiveSubroutineUniformiv = (PFNGLGETACTIVESUBROUTINEUNIFORMIVPROC_MT)cmgr->getProcAddress("glGetActiveSubroutineUniformiv");
+       if (!GetActiveSubroutineUniformName) GetActiveSubroutineUniformName = (PFNGLGETACTIVESUBROUTINEUNIFORMNAMEPROC_MT)cmgr->getProcAddress("glGetActiveSubroutineUniformName");
+       if (!GetActiveSubroutineName) GetActiveSubroutineName = (PFNGLGETACTIVESUBROUTINENAMEPROC_MT)cmgr->getProcAddress("glGetActiveSubroutineName");
+       if (!UniformSubroutinesuiv) UniformSubroutinesuiv = (PFNGLUNIFORMSUBROUTINESUIVPROC_MT)cmgr->getProcAddress("glUniformSubroutinesuiv");
+       if (!GetUniformSubroutineuiv) GetUniformSubroutineuiv = (PFNGLGETUNIFORMSUBROUTINEUIVPROC_MT)cmgr->getProcAddress("glGetUniformSubroutineuiv");
+       if (!GetProgramStageiv) GetProgramStageiv = (PFNGLGETPROGRAMSTAGEIVPROC_MT)cmgr->getProcAddress("glGetProgramStageiv");
+       if (!PatchParameteri) PatchParameteri = (PFNGLPATCHPARAMETERIPROC_MT)cmgr->getProcAddress("glPatchParameteri");
+       if (!PatchParameterfv) PatchParameterfv = (PFNGLPATCHPARAMETERFVPROC_MT)cmgr->getProcAddress("glPatchParameterfv");
+       if (!BindTransformFeedback) BindTransformFeedback = (PFNGLBINDTRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glBindTransformFeedback");
+       if (!DeleteTransformFeedbacks) DeleteTransformFeedbacks = (PFNGLDELETETRANSFORMFEEDBACKSPROC_MT)cmgr->getProcAddress("glDeleteTransformFeedbacks");
+       if (!GenTransformFeedbacks) GenTransformFeedbacks = (PFNGLGENTRANSFORMFEEDBACKSPROC_MT)cmgr->getProcAddress("glGenTransformFeedbacks");
+       if (!IsTransformFeedback) IsTransformFeedback = (PFNGLISTRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glIsTransformFeedback");
+       if (!PauseTransformFeedback) PauseTransformFeedback = (PFNGLPAUSETRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glPauseTransformFeedback");
+       if (!ResumeTransformFeedback) ResumeTransformFeedback = (PFNGLRESUMETRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glResumeTransformFeedback");
+       if (!DrawTransformFeedback) DrawTransformFeedback = (PFNGLDRAWTRANSFORMFEEDBACKPROC_MT)cmgr->getProcAddress("glDrawTransformFeedback");
+       if (!DrawTransformFeedbackStream) DrawTransformFeedbackStream = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMPROC_MT)cmgr->getProcAddress("glDrawTransformFeedbackStream");
+       if (!BeginQueryIndexed) BeginQueryIndexed = (PFNGLBEGINQUERYINDEXEDPROC_MT)cmgr->getProcAddress("glBeginQueryIndexed");
+       if (!EndQueryIndexed) EndQueryIndexed = (PFNGLENDQUERYINDEXEDPROC_MT)cmgr->getProcAddress("glEndQueryIndexed");
+       if (!GetQueryIndexediv) GetQueryIndexediv = (PFNGLGETQUERYINDEXEDIVPROC_MT)cmgr->getProcAddress("glGetQueryIndexediv");
+       if (!ReleaseShaderCompiler) ReleaseShaderCompiler = (PFNGLRELEASESHADERCOMPILERPROC_MT)cmgr->getProcAddress("glReleaseShaderCompiler");
+       if (!ShaderBinary) ShaderBinary = (PFNGLSHADERBINARYPROC_MT)cmgr->getProcAddress("glShaderBinary");
+       if (!GetShaderPrecisionFormat) GetShaderPrecisionFormat = (PFNGLGETSHADERPRECISIONFORMATPROC_MT)cmgr->getProcAddress("glGetShaderPrecisionFormat");
+       if (!DepthRangef) DepthRangef = (PFNGLDEPTHRANGEFPROC_MT)cmgr->getProcAddress("glDepthRangef");
+       if (!ClearDepthf) ClearDepthf = (PFNGLCLEARDEPTHFPROC_MT)cmgr->getProcAddress("glClearDepthf");
+       if (!GetProgramBinary) GetProgramBinary = (PFNGLGETPROGRAMBINARYPROC_MT)cmgr->getProcAddress("glGetProgramBinary");
+       if (!ProgramBinary) ProgramBinary = (PFNGLPROGRAMBINARYPROC_MT)cmgr->getProcAddress("glProgramBinary");
+       if (!ProgramParameteri) ProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC_MT)cmgr->getProcAddress("glProgramParameteri");
+       if (!ProgramParameteri) ProgramParameteri = (PFNGLPROGRAMPARAMETERIPROC_MT)cmgr->getProcAddress("glProgramParameteriARB");
+       if (!UseProgramStages) UseProgramStages = (PFNGLUSEPROGRAMSTAGESPROC_MT)cmgr->getProcAddress("glUseProgramStages");
+       if (!ActiveShaderProgram) ActiveShaderProgram = (PFNGLACTIVESHADERPROGRAMPROC_MT)cmgr->getProcAddress("glActiveShaderProgram");
+       if (!CreateShaderProgramv) CreateShaderProgramv = (PFNGLCREATESHADERPROGRAMVPROC_MT)cmgr->getProcAddress("glCreateShaderProgramv");
+       if (!BindProgramPipeline) BindProgramPipeline = (PFNGLBINDPROGRAMPIPELINEPROC_MT)cmgr->getProcAddress("glBindProgramPipeline");
+       if (!DeleteProgramPipelines) DeleteProgramPipelines = (PFNGLDELETEPROGRAMPIPELINESPROC_MT)cmgr->getProcAddress("glDeleteProgramPipelines");
+       if (!GenProgramPipelines) GenProgramPipelines = (PFNGLGENPROGRAMPIPELINESPROC_MT)cmgr->getProcAddress("glGenProgramPipelines");
+       if (!IsProgramPipeline) IsProgramPipeline = (PFNGLISPROGRAMPIPELINEPROC_MT)cmgr->getProcAddress("glIsProgramPipeline");
+       if (!GetProgramPipelineiv) GetProgramPipelineiv = (PFNGLGETPROGRAMPIPELINEIVPROC_MT)cmgr->getProcAddress("glGetProgramPipelineiv");
+       if (!ProgramUniform1i) ProgramUniform1i = (PFNGLPROGRAMUNIFORM1IPROC_MT)cmgr->getProcAddress("glProgramUniform1i");
+       if (!ProgramUniform1iv) ProgramUniform1iv = (PFNGLPROGRAMUNIFORM1IVPROC_MT)cmgr->getProcAddress("glProgramUniform1iv");
+       if (!ProgramUniform1f) ProgramUniform1f = (PFNGLPROGRAMUNIFORM1FPROC_MT)cmgr->getProcAddress("glProgramUniform1f");
+       if (!ProgramUniform1fv) ProgramUniform1fv = (PFNGLPROGRAMUNIFORM1FVPROC_MT)cmgr->getProcAddress("glProgramUniform1fv");
+       if (!ProgramUniform1d) ProgramUniform1d = (PFNGLPROGRAMUNIFORM1DPROC_MT)cmgr->getProcAddress("glProgramUniform1d");
+       if (!ProgramUniform1dv) ProgramUniform1dv = (PFNGLPROGRAMUNIFORM1DVPROC_MT)cmgr->getProcAddress("glProgramUniform1dv");
+       if (!ProgramUniform1ui) ProgramUniform1ui = (PFNGLPROGRAMUNIFORM1UIPROC_MT)cmgr->getProcAddress("glProgramUniform1ui");
+       if (!ProgramUniform1uiv) ProgramUniform1uiv = (PFNGLPROGRAMUNIFORM1UIVPROC_MT)cmgr->getProcAddress("glProgramUniform1uiv");
+       if (!ProgramUniform2i) ProgramUniform2i = (PFNGLPROGRAMUNIFORM2IPROC_MT)cmgr->getProcAddress("glProgramUniform2i");
+       if (!ProgramUniform2iv) ProgramUniform2iv = (PFNGLPROGRAMUNIFORM2IVPROC_MT)cmgr->getProcAddress("glProgramUniform2iv");
+       if (!ProgramUniform2f) ProgramUniform2f = (PFNGLPROGRAMUNIFORM2FPROC_MT)cmgr->getProcAddress("glProgramUniform2f");
+       if (!ProgramUniform2fv) ProgramUniform2fv = (PFNGLPROGRAMUNIFORM2FVPROC_MT)cmgr->getProcAddress("glProgramUniform2fv");
+       if (!ProgramUniform2d) ProgramUniform2d = (PFNGLPROGRAMUNIFORM2DPROC_MT)cmgr->getProcAddress("glProgramUniform2d");
+       if (!ProgramUniform2dv) ProgramUniform2dv = (PFNGLPROGRAMUNIFORM2DVPROC_MT)cmgr->getProcAddress("glProgramUniform2dv");
+       if (!ProgramUniform2ui) ProgramUniform2ui = (PFNGLPROGRAMUNIFORM2UIPROC_MT)cmgr->getProcAddress("glProgramUniform2ui");
+       if (!ProgramUniform2uiv) ProgramUniform2uiv = (PFNGLPROGRAMUNIFORM2UIVPROC_MT)cmgr->getProcAddress("glProgramUniform2uiv");
+       if (!ProgramUniform3i) ProgramUniform3i = (PFNGLPROGRAMUNIFORM3IPROC_MT)cmgr->getProcAddress("glProgramUniform3i");
+       if (!ProgramUniform3iv) ProgramUniform3iv = (PFNGLPROGRAMUNIFORM3IVPROC_MT)cmgr->getProcAddress("glProgramUniform3iv");
+       if (!ProgramUniform3f) ProgramUniform3f = (PFNGLPROGRAMUNIFORM3FPROC_MT)cmgr->getProcAddress("glProgramUniform3f");
+       if (!ProgramUniform3fv) ProgramUniform3fv = (PFNGLPROGRAMUNIFORM3FVPROC_MT)cmgr->getProcAddress("glProgramUniform3fv");
+       if (!ProgramUniform3d) ProgramUniform3d = (PFNGLPROGRAMUNIFORM3DPROC_MT)cmgr->getProcAddress("glProgramUniform3d");
+       if (!ProgramUniform3dv) ProgramUniform3dv = (PFNGLPROGRAMUNIFORM3DVPROC_MT)cmgr->getProcAddress("glProgramUniform3dv");
+       if (!ProgramUniform3ui) ProgramUniform3ui = (PFNGLPROGRAMUNIFORM3UIPROC_MT)cmgr->getProcAddress("glProgramUniform3ui");
+       if (!ProgramUniform3uiv) ProgramUniform3uiv = (PFNGLPROGRAMUNIFORM3UIVPROC_MT)cmgr->getProcAddress("glProgramUniform3uiv");
+       if (!ProgramUniform4i) ProgramUniform4i = (PFNGLPROGRAMUNIFORM4IPROC_MT)cmgr->getProcAddress("glProgramUniform4i");
+       if (!ProgramUniform4iv) ProgramUniform4iv = (PFNGLPROGRAMUNIFORM4IVPROC_MT)cmgr->getProcAddress("glProgramUniform4iv");
+       if (!ProgramUniform4f) ProgramUniform4f = (PFNGLPROGRAMUNIFORM4FPROC_MT)cmgr->getProcAddress("glProgramUniform4f");
+       if (!ProgramUniform4fv) ProgramUniform4fv = (PFNGLPROGRAMUNIFORM4FVPROC_MT)cmgr->getProcAddress("glProgramUniform4fv");
+       if (!ProgramUniform4d) ProgramUniform4d = (PFNGLPROGRAMUNIFORM4DPROC_MT)cmgr->getProcAddress("glProgramUniform4d");
+       if (!ProgramUniform4dv) ProgramUniform4dv = (PFNGLPROGRAMUNIFORM4DVPROC_MT)cmgr->getProcAddress("glProgramUniform4dv");
+       if (!ProgramUniform4ui) ProgramUniform4ui = (PFNGLPROGRAMUNIFORM4UIPROC_MT)cmgr->getProcAddress("glProgramUniform4ui");
+       if (!ProgramUniform4uiv) ProgramUniform4uiv = (PFNGLPROGRAMUNIFORM4UIVPROC_MT)cmgr->getProcAddress("glProgramUniform4uiv");
+       if (!ProgramUniformMatrix2fv) ProgramUniformMatrix2fv = (PFNGLPROGRAMUNIFORMMATRIX2FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2fv");
+       if (!ProgramUniformMatrix3fv) ProgramUniformMatrix3fv = (PFNGLPROGRAMUNIFORMMATRIX3FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3fv");
+       if (!ProgramUniformMatrix4fv) ProgramUniformMatrix4fv = (PFNGLPROGRAMUNIFORMMATRIX4FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4fv");
+       if (!ProgramUniformMatrix2dv) ProgramUniformMatrix2dv = (PFNGLPROGRAMUNIFORMMATRIX2DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2dv");
+       if (!ProgramUniformMatrix3dv) ProgramUniformMatrix3dv = (PFNGLPROGRAMUNIFORMMATRIX3DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3dv");
+       if (!ProgramUniformMatrix4dv) ProgramUniformMatrix4dv = (PFNGLPROGRAMUNIFORMMATRIX4DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4dv");
+       if (!ProgramUniformMatrix2x3fv) ProgramUniformMatrix2x3fv = (PFNGLPROGRAMUNIFORMMATRIX2X3FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2x3fv");
+       if (!ProgramUniformMatrix3x2fv) ProgramUniformMatrix3x2fv = (PFNGLPROGRAMUNIFORMMATRIX3X2FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3x2fv");
+       if (!ProgramUniformMatrix2x4fv) ProgramUniformMatrix2x4fv = (PFNGLPROGRAMUNIFORMMATRIX2X4FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2x4fv");
+       if (!ProgramUniformMatrix4x2fv) ProgramUniformMatrix4x2fv = (PFNGLPROGRAMUNIFORMMATRIX4X2FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4x2fv");
+       if (!ProgramUniformMatrix3x4fv) ProgramUniformMatrix3x4fv = (PFNGLPROGRAMUNIFORMMATRIX3X4FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3x4fv");
+       if (!ProgramUniformMatrix4x3fv) ProgramUniformMatrix4x3fv = (PFNGLPROGRAMUNIFORMMATRIX4X3FVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4x3fv");
+       if (!ProgramUniformMatrix2x3dv) ProgramUniformMatrix2x3dv = (PFNGLPROGRAMUNIFORMMATRIX2X3DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2x3dv");
+       if (!ProgramUniformMatrix3x2dv) ProgramUniformMatrix3x2dv = (PFNGLPROGRAMUNIFORMMATRIX3X2DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3x2dv");
+       if (!ProgramUniformMatrix2x4dv) ProgramUniformMatrix2x4dv = (PFNGLPROGRAMUNIFORMMATRIX2X4DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix2x4dv");
+       if (!ProgramUniformMatrix4x2dv) ProgramUniformMatrix4x2dv = (PFNGLPROGRAMUNIFORMMATRIX4X2DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4x2dv");
+       if (!ProgramUniformMatrix3x4dv) ProgramUniformMatrix3x4dv = (PFNGLPROGRAMUNIFORMMATRIX3X4DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix3x4dv");
+       if (!ProgramUniformMatrix4x3dv) ProgramUniformMatrix4x3dv = (PFNGLPROGRAMUNIFORMMATRIX4X3DVPROC_MT)cmgr->getProcAddress("glProgramUniformMatrix4x3dv");
+       if (!ValidateProgramPipeline) ValidateProgramPipeline = (PFNGLVALIDATEPROGRAMPIPELINEPROC_MT)cmgr->getProcAddress("glValidateProgramPipeline");
+       if (!GetProgramPipelineInfoLog) GetProgramPipelineInfoLog = (PFNGLGETPROGRAMPIPELINEINFOLOGPROC_MT)cmgr->getProcAddress("glGetProgramPipelineInfoLog");
+       if (!VertexAttribL1d) VertexAttribL1d = (PFNGLVERTEXATTRIBL1DPROC_MT)cmgr->getProcAddress("glVertexAttribL1d");
+       if (!VertexAttribL2d) VertexAttribL2d = (PFNGLVERTEXATTRIBL2DPROC_MT)cmgr->getProcAddress("glVertexAttribL2d");
+       if (!VertexAttribL3d) VertexAttribL3d = (PFNGLVERTEXATTRIBL3DPROC_MT)cmgr->getProcAddress("glVertexAttribL3d");
+       if (!VertexAttribL4d) VertexAttribL4d = (PFNGLVERTEXATTRIBL4DPROC_MT)cmgr->getProcAddress("glVertexAttribL4d");
+       if (!VertexAttribL1dv) VertexAttribL1dv = (PFNGLVERTEXATTRIBL1DVPROC_MT)cmgr->getProcAddress("glVertexAttribL1dv");
+       if (!VertexAttribL2dv) VertexAttribL2dv = (PFNGLVERTEXATTRIBL2DVPROC_MT)cmgr->getProcAddress("glVertexAttribL2dv");
+       if (!VertexAttribL3dv) VertexAttribL3dv = (PFNGLVERTEXATTRIBL3DVPROC_MT)cmgr->getProcAddress("glVertexAttribL3dv");
+       if (!VertexAttribL4dv) VertexAttribL4dv = (PFNGLVERTEXATTRIBL4DVPROC_MT)cmgr->getProcAddress("glVertexAttribL4dv");
+       if (!VertexAttribLPointer) VertexAttribLPointer = (PFNGLVERTEXATTRIBLPOINTERPROC_MT)cmgr->getProcAddress("glVertexAttribLPointer");
+       if (!GetVertexAttribLdv) GetVertexAttribLdv = (PFNGLGETVERTEXATTRIBLDVPROC_MT)cmgr->getProcAddress("glGetVertexAttribLdv");
+       if (!ViewportArrayv) ViewportArrayv = (PFNGLVIEWPORTARRAYVPROC_MT)cmgr->getProcAddress("glViewportArrayv");
+       if (!ViewportIndexedf) ViewportIndexedf = (PFNGLVIEWPORTINDEXEDFPROC_MT)cmgr->getProcAddress("glViewportIndexedf");
+       if (!ViewportIndexedfv) ViewportIndexedfv = (PFNGLVIEWPORTINDEXEDFVPROC_MT)cmgr->getProcAddress("glViewportIndexedfv");
+       if (!ScissorArrayv) ScissorArrayv = (PFNGLSCISSORARRAYVPROC_MT)cmgr->getProcAddress("glScissorArrayv");
+       if (!ScissorIndexed) ScissorIndexed = (PFNGLSCISSORINDEXEDPROC_MT)cmgr->getProcAddress("glScissorIndexed");
+       if (!ScissorIndexedv) ScissorIndexedv = (PFNGLSCISSORINDEXEDVPROC_MT)cmgr->getProcAddress("glScissorIndexedv");
+       if (!DepthRangeArrayv) DepthRangeArrayv = (PFNGLDEPTHRANGEARRAYVPROC_MT)cmgr->getProcAddress("glDepthRangeArrayv");
+       if (!DepthRangeIndexed) DepthRangeIndexed = (PFNGLDEPTHRANGEINDEXEDPROC_MT)cmgr->getProcAddress("glDepthRangeIndexed");
+       if (!DrawArraysInstancedBaseInstance) DrawArraysInstancedBaseInstance = (PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEPROC_MT)cmgr->getProcAddress("glDrawArraysInstancedBaseInstance");
+       if (!DrawElementsInstancedBaseInstance) DrawElementsInstancedBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEINSTANCEPROC_MT)cmgr->getProcAddress("glDrawElementsInstancedBaseInstance");
+       if (!DrawElementsInstancedBaseVertexBaseInstance) DrawElementsInstancedBaseVertexBaseInstance = (PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEPROC_MT)cmgr->getProcAddress("glDrawElementsInstancedBaseVertexBaseInstance");
+       if (!GetInternalformativ) GetInternalformativ = (PFNGLGETINTERNALFORMATIVPROC_MT)cmgr->getProcAddress("glGetInternalformativ");
+       if (!GetActiveAtomicCounterBufferiv) GetActiveAtomicCounterBufferiv = (PFNGLGETACTIVEATOMICCOUNTERBUFFERIVPROC_MT)cmgr->getProcAddress("glGetActiveAtomicCounterBufferiv");
+       if (!BindImageTexture) BindImageTexture = (PFNGLBINDIMAGETEXTUREPROC_MT)cmgr->getProcAddress("glBindImageTexture");
+       if (!MemoryBarrier) MemoryBarrier = (PFNGLMEMORYBARRIERPROC_MT)cmgr->getProcAddress("glMemoryBarrier");
+       if (!TexStorage1D) TexStorage1D = (PFNGLTEXSTORAGE1DPROC_MT)cmgr->getProcAddress("glTexStorage1D");
+       if (!TexStorage2D) TexStorage2D = (PFNGLTEXSTORAGE2DPROC_MT)cmgr->getProcAddress("glTexStorage2D");
+       if (!TexStorage3D) TexStorage3D = (PFNGLTEXSTORAGE3DPROC_MT)cmgr->getProcAddress("glTexStorage3D");
+       if (!DrawTransformFeedbackInstanced) DrawTransformFeedbackInstanced = (PFNGLDRAWTRANSFORMFEEDBACKINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawTransformFeedbackInstanced");
+       if (!DrawTransformFeedbackStreamInstanced) DrawTransformFeedbackStreamInstanced = (PFNGLDRAWTRANSFORMFEEDBACKSTREAMINSTANCEDPROC_MT)cmgr->getProcAddress("glDrawTransformFeedbackStreamInstanced");
+       if (!ClearBufferData) ClearBufferData = (PFNGLCLEARBUFFERDATAPROC_MT)cmgr->getProcAddress("glClearBufferData");
+       if (!ClearBufferSubData) ClearBufferSubData = (PFNGLCLEARBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glClearBufferSubData");
+       if (!DispatchCompute) DispatchCompute = (PFNGLDISPATCHCOMPUTEPROC_MT)cmgr->getProcAddress("glDispatchCompute");
+       if (!DispatchComputeIndirect) DispatchComputeIndirect = (PFNGLDISPATCHCOMPUTEINDIRECTPROC_MT)cmgr->getProcAddress("glDispatchComputeIndirect");
+       if (!CopyImageSubData) CopyImageSubData = (PFNGLCOPYIMAGESUBDATAPROC_MT)cmgr->getProcAddress("glCopyImageSubData");
+       if (!FramebufferParameteri) FramebufferParameteri = (PFNGLFRAMEBUFFERPARAMETERIPROC_MT)cmgr->getProcAddress("glFramebufferParameteri");
+       if (!GetFramebufferParameteriv) GetFramebufferParameteriv = (PFNGLGETFRAMEBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetFramebufferParameteriv");
+       if (!GetInternalformati64v) GetInternalformati64v = (PFNGLGETINTERNALFORMATI64VPROC_MT)cmgr->getProcAddress("glGetInternalformati64v");
+       if (!InvalidateTexSubImage) InvalidateTexSubImage = (PFNGLINVALIDATETEXSUBIMAGEPROC_MT)cmgr->getProcAddress("glInvalidateTexSubImage");
+       if (!InvalidateTexImage) InvalidateTexImage = (PFNGLINVALIDATETEXIMAGEPROC_MT)cmgr->getProcAddress("glInvalidateTexImage");
+       if (!InvalidateBufferSubData) InvalidateBufferSubData = (PFNGLINVALIDATEBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glInvalidateBufferSubData");
+       if (!InvalidateBufferData) InvalidateBufferData = (PFNGLINVALIDATEBUFFERDATAPROC_MT)cmgr->getProcAddress("glInvalidateBufferData");
+       if (!InvalidateFramebuffer) InvalidateFramebuffer = (PFNGLINVALIDATEFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glInvalidateFramebuffer");
+       if (!InvalidateSubFramebuffer) InvalidateSubFramebuffer = (PFNGLINVALIDATESUBFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glInvalidateSubFramebuffer");
+       if (!MultiDrawArraysIndirect) MultiDrawArraysIndirect = (PFNGLMULTIDRAWARRAYSINDIRECTPROC_MT)cmgr->getProcAddress("glMultiDrawArraysIndirect");
+       if (!MultiDrawElementsIndirect) MultiDrawElementsIndirect = (PFNGLMULTIDRAWELEMENTSINDIRECTPROC_MT)cmgr->getProcAddress("glMultiDrawElementsIndirect");
+       if (!GetProgramInterfaceiv) GetProgramInterfaceiv = (PFNGLGETPROGRAMINTERFACEIVPROC_MT)cmgr->getProcAddress("glGetProgramInterfaceiv");
+       if (!GetProgramResourceIndex) GetProgramResourceIndex = (PFNGLGETPROGRAMRESOURCEINDEXPROC_MT)cmgr->getProcAddress("glGetProgramResourceIndex");
+       if (!GetProgramResourceName) GetProgramResourceName = (PFNGLGETPROGRAMRESOURCENAMEPROC_MT)cmgr->getProcAddress("glGetProgramResourceName");
+       if (!GetProgramResourceiv) GetProgramResourceiv = (PFNGLGETPROGRAMRESOURCEIVPROC_MT)cmgr->getProcAddress("glGetProgramResourceiv");
+       if (!GetProgramResourceLocation) GetProgramResourceLocation = (PFNGLGETPROGRAMRESOURCELOCATIONPROC_MT)cmgr->getProcAddress("glGetProgramResourceLocation");
+       if (!GetProgramResourceLocationIndex) GetProgramResourceLocationIndex = (PFNGLGETPROGRAMRESOURCELOCATIONINDEXPROC_MT)cmgr->getProcAddress("glGetProgramResourceLocationIndex");
+       if (!ShaderStorageBlockBinding) ShaderStorageBlockBinding = (PFNGLSHADERSTORAGEBLOCKBINDINGPROC_MT)cmgr->getProcAddress("glShaderStorageBlockBinding");
+       if (!TexBufferRange) TexBufferRange = (PFNGLTEXBUFFERRANGEPROC_MT)cmgr->getProcAddress("glTexBufferRange");
+       if (!TexStorage2DMultisample) TexStorage2DMultisample = (PFNGLTEXSTORAGE2DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTexStorage2DMultisample");
+       if (!TexStorage3DMultisample) TexStorage3DMultisample = (PFNGLTEXSTORAGE3DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTexStorage3DMultisample");
+       if (!TextureView) TextureView = (PFNGLTEXTUREVIEWPROC_MT)cmgr->getProcAddress("glTextureView");
+       if (!BindVertexBuffer) BindVertexBuffer = (PFNGLBINDVERTEXBUFFERPROC_MT)cmgr->getProcAddress("glBindVertexBuffer");
+       if (!VertexAttribFormat) VertexAttribFormat = (PFNGLVERTEXATTRIBFORMATPROC_MT)cmgr->getProcAddress("glVertexAttribFormat");
+       if (!VertexAttribIFormat) VertexAttribIFormat = (PFNGLVERTEXATTRIBIFORMATPROC_MT)cmgr->getProcAddress("glVertexAttribIFormat");
+       if (!VertexAttribLFormat) VertexAttribLFormat = (PFNGLVERTEXATTRIBLFORMATPROC_MT)cmgr->getProcAddress("glVertexAttribLFormat");
+       if (!VertexAttribBinding) VertexAttribBinding = (PFNGLVERTEXATTRIBBINDINGPROC_MT)cmgr->getProcAddress("glVertexAttribBinding");
+       if (!VertexBindingDivisor) VertexBindingDivisor = (PFNGLVERTEXBINDINGDIVISORPROC_MT)cmgr->getProcAddress("glVertexBindingDivisor");
+       if (!DebugMessageControl) DebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC_MT)cmgr->getProcAddress("glDebugMessageControl");
+       if (!DebugMessageControl) DebugMessageControl = (PFNGLDEBUGMESSAGECONTROLPROC_MT)cmgr->getProcAddress("glDebugMessageControlARB");
+       if (!DebugMessageInsert) DebugMessageInsert = (PFNGLDEBUGMESSAGEINSERTPROC_MT)cmgr->getProcAddress("glDebugMessageInsert");
+       if (!DebugMessageInsert) DebugMessageInsert = (PFNGLDEBUGMESSAGEINSERTPROC_MT)cmgr->getProcAddress("glDebugMessageInsertARB");
+       if (!DebugMessageCallback) DebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC_MT)cmgr->getProcAddress("glDebugMessageCallback");
+       if (!DebugMessageCallback) DebugMessageCallback = (PFNGLDEBUGMESSAGECALLBACKPROC_MT)cmgr->getProcAddress("glDebugMessageCallbackARB");
+       if (!GetDebugMessageLog) GetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGPROC_MT)cmgr->getProcAddress("glGetDebugMessageLog");
+       if (!GetDebugMessageLog) GetDebugMessageLog = (PFNGLGETDEBUGMESSAGELOGPROC_MT)cmgr->getProcAddress("glGetDebugMessageLogARB");
+       if (!PushDebugGroup) PushDebugGroup = (PFNGLPUSHDEBUGGROUPPROC_MT)cmgr->getProcAddress("glPushDebugGroup");
+       if (!PopDebugGroup) PopDebugGroup = (PFNGLPOPDEBUGGROUPPROC_MT)cmgr->getProcAddress("glPopDebugGroup");
+       if (!ObjectLabel) ObjectLabel = (PFNGLOBJECTLABELPROC_MT)cmgr->getProcAddress("glObjectLabel");
+       if (!GetObjectLabel) GetObjectLabel = (PFNGLGETOBJECTLABELPROC_MT)cmgr->getProcAddress("glGetObjectLabel");
+       if (!ObjectPtrLabel) ObjectPtrLabel = (PFNGLOBJECTPTRLABELPROC_MT)cmgr->getProcAddress("glObjectPtrLabel");
+       if (!GetObjectPtrLabel) GetObjectPtrLabel = (PFNGLGETOBJECTPTRLABELPROC_MT)cmgr->getProcAddress("glGetObjectPtrLabel");
+       if (!BufferStorage) BufferStorage = (PFNGLBUFFERSTORAGEPROC_MT)cmgr->getProcAddress("glBufferStorage");
+       if (!ClearTexImage) ClearTexImage = (PFNGLCLEARTEXIMAGEPROC_MT)cmgr->getProcAddress("glClearTexImage");
+       if (!ClearTexSubImage) ClearTexSubImage = (PFNGLCLEARTEXSUBIMAGEPROC_MT)cmgr->getProcAddress("glClearTexSubImage");
+       if (!BindBuffersBase) BindBuffersBase = (PFNGLBINDBUFFERSBASEPROC_MT)cmgr->getProcAddress("glBindBuffersBase");
+       if (!BindBuffersRange) BindBuffersRange = (PFNGLBINDBUFFERSRANGEPROC_MT)cmgr->getProcAddress("glBindBuffersRange");
+       if (!BindTextures) BindTextures = (PFNGLBINDTEXTURESPROC_MT)cmgr->getProcAddress("glBindTextures");
+       if (!BindSamplers) BindSamplers = (PFNGLBINDSAMPLERSPROC_MT)cmgr->getProcAddress("glBindSamplers");
+       if (!BindImageTextures) BindImageTextures = (PFNGLBINDIMAGETEXTURESPROC_MT)cmgr->getProcAddress("glBindImageTextures");
+       if (!BindVertexBuffers) BindVertexBuffers = (PFNGLBINDVERTEXBUFFERSPROC_MT)cmgr->getProcAddress("glBindVertexBuffers");
+       if (!ClipControl) ClipControl = (PFNGLCLIPCONTROLPROC_MT)cmgr->getProcAddress("glClipControl");
+       if (!CreateTransformFeedbacks) CreateTransformFeedbacks = (PFNGLCREATETRANSFORMFEEDBACKSPROC_MT)cmgr->getProcAddress("glCreateTransformFeedbacks");
+       if (!TransformFeedbackBufferBase) TransformFeedbackBufferBase = (PFNGLTRANSFORMFEEDBACKBUFFERBASEPROC_MT)cmgr->getProcAddress("glTransformFeedbackBufferBase");
+       if (!TransformFeedbackBufferRange) TransformFeedbackBufferRange = (PFNGLTRANSFORMFEEDBACKBUFFERRANGEPROC_MT)cmgr->getProcAddress("glTransformFeedbackBufferRange");
+       if (!GetTransformFeedbackiv) GetTransformFeedbackiv = (PFNGLGETTRANSFORMFEEDBACKIVPROC_MT)cmgr->getProcAddress("glGetTransformFeedbackiv");
+       if (!CreateBuffers) CreateBuffers = (PFNGLCREATEBUFFERSPROC_MT)cmgr->getProcAddress("glCreateBuffers");
+       if (!NamedBufferStorage) NamedBufferStorage = (PFNGLNAMEDBUFFERSTORAGEPROC_MT)cmgr->getProcAddress("glNamedBufferStorage");
+       if (!NamedBufferData) NamedBufferData = (PFNGLNAMEDBUFFERDATAPROC_MT)cmgr->getProcAddress("glNamedBufferData");
+       if (!NamedBufferSubData) NamedBufferSubData = (PFNGLNAMEDBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glNamedBufferSubData");
+       if (!CopyNamedBufferSubData) CopyNamedBufferSubData = (PFNGLCOPYNAMEDBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glCopyNamedBufferSubData");
+       if (!ClearNamedBufferData) ClearNamedBufferData = (PFNGLCLEARNAMEDBUFFERDATAPROC_MT)cmgr->getProcAddress("glClearNamedBufferData");
+       if (!ClearNamedBufferSubData) ClearNamedBufferSubData = (PFNGLCLEARNAMEDBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glClearNamedBufferSubData");
+       if (!MapNamedBuffer) MapNamedBuffer = (PFNGLMAPNAMEDBUFFERPROC_MT)cmgr->getProcAddress("glMapNamedBuffer");
+       if (!MapNamedBufferRange) MapNamedBufferRange = (PFNGLMAPNAMEDBUFFERRANGEPROC_MT)cmgr->getProcAddress("glMapNamedBufferRange");
+       if (!UnmapNamedBuffer) UnmapNamedBuffer = (PFNGLUNMAPNAMEDBUFFERPROC_MT)cmgr->getProcAddress("glUnmapNamedBuffer");
+       if (!FlushMappedNamedBufferRange) FlushMappedNamedBufferRange = (PFNGLFLUSHMAPPEDNAMEDBUFFERRANGEPROC_MT)cmgr->getProcAddress("glFlushMappedNamedBufferRange");
+       if (!GetNamedBufferParameteriv) GetNamedBufferParameteriv = (PFNGLGETNAMEDBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetNamedBufferParameteriv");
+       if (!GetNamedBufferParameteri64v) GetNamedBufferParameteri64v = (PFNGLGETNAMEDBUFFERPARAMETERI64VPROC_MT)cmgr->getProcAddress("glGetNamedBufferParameteri64v");
+       if (!GetNamedBufferPointerv) GetNamedBufferPointerv = (PFNGLGETNAMEDBUFFERPOINTERVPROC_MT)cmgr->getProcAddress("glGetNamedBufferPointerv");
+       if (!GetNamedBufferSubData) GetNamedBufferSubData = (PFNGLGETNAMEDBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glGetNamedBufferSubData");
+       if (!CreateFramebuffers) CreateFramebuffers = (PFNGLCREATEFRAMEBUFFERSPROC_MT)cmgr->getProcAddress("glCreateFramebuffers");
+       if (!NamedFramebufferRenderbuffer) NamedFramebufferRenderbuffer = (PFNGLNAMEDFRAMEBUFFERRENDERBUFFERPROC_MT)cmgr->getProcAddress("glNamedFramebufferRenderbuffer");
+       if (!NamedFramebufferParameteri) NamedFramebufferParameteri = (PFNGLNAMEDFRAMEBUFFERPARAMETERIPROC_MT)cmgr->getProcAddress("glNamedFramebufferParameteri");
+       if (!NamedFramebufferTexture) NamedFramebufferTexture = (PFNGLNAMEDFRAMEBUFFERTEXTUREPROC_MT)cmgr->getProcAddress("glNamedFramebufferTexture");
+       if (!NamedFramebufferTextureLayer) NamedFramebufferTextureLayer = (PFNGLNAMEDFRAMEBUFFERTEXTURELAYERPROC_MT)cmgr->getProcAddress("glNamedFramebufferTextureLayer");
+       if (!NamedFramebufferDrawBuffer) NamedFramebufferDrawBuffer = (PFNGLNAMEDFRAMEBUFFERDRAWBUFFERPROC_MT)cmgr->getProcAddress("glNamedFramebufferDrawBuffer");
+       if (!NamedFramebufferDrawBuffers) NamedFramebufferDrawBuffers = (PFNGLNAMEDFRAMEBUFFERDRAWBUFFERSPROC_MT)cmgr->getProcAddress("glNamedFramebufferDrawBuffers");
+       if (!NamedFramebufferReadBuffer) NamedFramebufferReadBuffer = (PFNGLNAMEDFRAMEBUFFERREADBUFFERPROC_MT)cmgr->getProcAddress("glNamedFramebufferReadBuffer");
+       if (!InvalidateNamedFramebufferData) InvalidateNamedFramebufferData = (PFNGLINVALIDATENAMEDFRAMEBUFFERDATAPROC_MT)cmgr->getProcAddress("glInvalidateNamedFramebufferData");
+       if (!InvalidateNamedFramebufferSubData) InvalidateNamedFramebufferSubData = (PFNGLINVALIDATENAMEDFRAMEBUFFERSUBDATAPROC_MT)cmgr->getProcAddress("glInvalidateNamedFramebufferSubData");
+       if (!ClearNamedFramebufferiv) ClearNamedFramebufferiv = (PFNGLCLEARNAMEDFRAMEBUFFERIVPROC_MT)cmgr->getProcAddress("glClearNamedFramebufferiv");
+       if (!ClearNamedFramebufferuiv) ClearNamedFramebufferuiv = (PFNGLCLEARNAMEDFRAMEBUFFERUIVPROC_MT)cmgr->getProcAddress("glClearNamedFramebufferuiv");
+       if (!ClearNamedFramebufferfv) ClearNamedFramebufferfv = (PFNGLCLEARNAMEDFRAMEBUFFERFVPROC_MT)cmgr->getProcAddress("glClearNamedFramebufferfv");
+       if (!ClearNamedFramebufferfi) ClearNamedFramebufferfi = (PFNGLCLEARNAMEDFRAMEBUFFERFIPROC_MT)cmgr->getProcAddress("glClearNamedFramebufferfi");
+       if (!BlitNamedFramebuffer) BlitNamedFramebuffer = (PFNGLBLITNAMEDFRAMEBUFFERPROC_MT)cmgr->getProcAddress("glBlitNamedFramebuffer");
+       if (!CheckNamedFramebufferStatus) CheckNamedFramebufferStatus = (PFNGLCHECKNAMEDFRAMEBUFFERSTATUSPROC_MT)cmgr->getProcAddress("glCheckNamedFramebufferStatus");
+       if (!GetNamedFramebufferParameteriv) GetNamedFramebufferParameteriv = (PFNGLGETNAMEDFRAMEBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetNamedFramebufferParameteriv");
+       if (!GetNamedFramebufferAttachmentParameteriv) GetNamedFramebufferAttachmentParameteriv = (PFNGLGETNAMEDFRAMEBUFFERATTACHMENTPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetNamedFramebufferAttachmentParameteriv");
+       if (!CreateRenderbuffers) CreateRenderbuffers = (PFNGLCREATERENDERBUFFERSPROC_MT)cmgr->getProcAddress("glCreateRenderbuffers");
+       if (!NamedRenderbufferStorage) NamedRenderbufferStorage = (PFNGLNAMEDRENDERBUFFERSTORAGEPROC_MT)cmgr->getProcAddress("glNamedRenderbufferStorage");
+       if (!NamedRenderbufferStorageMultisample) NamedRenderbufferStorageMultisample = (PFNGLNAMEDRENDERBUFFERSTORAGEMULTISAMPLEPROC_MT)cmgr->getProcAddress("glNamedRenderbufferStorageMultisample");
+       if (!GetNamedRenderbufferParameteriv) GetNamedRenderbufferParameteriv = (PFNGLGETNAMEDRENDERBUFFERPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetNamedRenderbufferParameteriv");
+       if (!CreateTextures) CreateTextures = (PFNGLCREATETEXTURESPROC_MT)cmgr->getProcAddress("glCreateTextures");
+       if (!TextureBuffer) TextureBuffer = (PFNGLTEXTUREBUFFERPROC_MT)cmgr->getProcAddress("glTextureBuffer");
+       if (!TextureBufferRange) TextureBufferRange = (PFNGLTEXTUREBUFFERRANGEPROC_MT)cmgr->getProcAddress("glTextureBufferRange");
+       if (!TextureStorage1D) TextureStorage1D = (PFNGLTEXTURESTORAGE1DPROC_MT)cmgr->getProcAddress("glTextureStorage1D");
+       if (!TextureStorage2D) TextureStorage2D = (PFNGLTEXTURESTORAGE2DPROC_MT)cmgr->getProcAddress("glTextureStorage2D");
+       if (!TextureStorage3D) TextureStorage3D = (PFNGLTEXTURESTORAGE3DPROC_MT)cmgr->getProcAddress("glTextureStorage3D");
+       if (!TextureStorage2DMultisample) TextureStorage2DMultisample = (PFNGLTEXTURESTORAGE2DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTextureStorage2DMultisample");
+       if (!TextureStorage3DMultisample) TextureStorage3DMultisample = (PFNGLTEXTURESTORAGE3DMULTISAMPLEPROC_MT)cmgr->getProcAddress("glTextureStorage3DMultisample");
+       if (!TextureSubImage1D) TextureSubImage1D = (PFNGLTEXTURESUBIMAGE1DPROC_MT)cmgr->getProcAddress("glTextureSubImage1D");
+       if (!TextureSubImage2D) TextureSubImage2D = (PFNGLTEXTURESUBIMAGE2DPROC_MT)cmgr->getProcAddress("glTextureSubImage2D");
+       if (!TextureSubImage3D) TextureSubImage3D = (PFNGLTEXTURESUBIMAGE3DPROC_MT)cmgr->getProcAddress("glTextureSubImage3D");
+       if (!CompressedTextureSubImage1D) CompressedTextureSubImage1D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE1DPROC_MT)cmgr->getProcAddress("glCompressedTextureSubImage1D");
+       if (!CompressedTextureSubImage2D) CompressedTextureSubImage2D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE2DPROC_MT)cmgr->getProcAddress("glCompressedTextureSubImage2D");
+       if (!CompressedTextureSubImage3D) CompressedTextureSubImage3D = (PFNGLCOMPRESSEDTEXTURESUBIMAGE3DPROC_MT)cmgr->getProcAddress("glCompressedTextureSubImage3D");
+       if (!CopyTextureSubImage1D) CopyTextureSubImage1D = (PFNGLCOPYTEXTURESUBIMAGE1DPROC_MT)cmgr->getProcAddress("glCopyTextureSubImage1D");
+       if (!CopyTextureSubImage2D) CopyTextureSubImage2D = (PFNGLCOPYTEXTURESUBIMAGE2DPROC_MT)cmgr->getProcAddress("glCopyTextureSubImage2D");
+       if (!CopyTextureSubImage3D) CopyTextureSubImage3D = (PFNGLCOPYTEXTURESUBIMAGE3DPROC_MT)cmgr->getProcAddress("glCopyTextureSubImage3D");
+       if (!TextureParameterf) TextureParameterf = (PFNGLTEXTUREPARAMETERFPROC_MT)cmgr->getProcAddress("glTextureParameterf");
+       if (!TextureParameterfv) TextureParameterfv = (PFNGLTEXTUREPARAMETERFVPROC_MT)cmgr->getProcAddress("glTextureParameterfv");
+       if (!TextureParameteri) TextureParameteri = (PFNGLTEXTUREPARAMETERIPROC_MT)cmgr->getProcAddress("glTextureParameteri");
+       if (!TextureParameterIiv) TextureParameterIiv = (PFNGLTEXTUREPARAMETERIIVPROC_MT)cmgr->getProcAddress("glTextureParameterIiv");
+       if (!TextureParameterIuiv) TextureParameterIuiv = (PFNGLTEXTUREPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glTextureParameterIuiv");
+       if (!TextureParameteriv) TextureParameteriv = (PFNGLTEXTUREPARAMETERIVPROC_MT)cmgr->getProcAddress("glTextureParameteriv");
+       if (!GenerateTextureMipmap) GenerateTextureMipmap = (PFNGLGENERATETEXTUREMIPMAPPROC_MT)cmgr->getProcAddress("glGenerateTextureMipmap");
+       if (!BindTextureUnit) BindTextureUnit = (PFNGLBINDTEXTUREUNITPROC_MT)cmgr->getProcAddress("glBindTextureUnit");
+       if (!GetTextureImage) GetTextureImage = (PFNGLGETTEXTUREIMAGEPROC_MT)cmgr->getProcAddress("glGetTextureImage");
+       if (!GetCompressedTextureImage) GetCompressedTextureImage = (PFNGLGETCOMPRESSEDTEXTUREIMAGEPROC_MT)cmgr->getProcAddress("glGetCompressedTextureImage");
+       if (!GetTextureLevelParameterfv) GetTextureLevelParameterfv = (PFNGLGETTEXTURELEVELPARAMETERFVPROC_MT)cmgr->getProcAddress("glGetTextureLevelParameterfv");
+       if (!GetTextureLevelParameteriv) GetTextureLevelParameteriv = (PFNGLGETTEXTURELEVELPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetTextureLevelParameteriv");
+       if (!GetTextureParameterfv) GetTextureParameterfv = (PFNGLGETTEXTUREPARAMETERFVPROC_MT)cmgr->getProcAddress("glGetTextureParameterfv");
+       if (!GetTextureParameterIiv) GetTextureParameterIiv = (PFNGLGETTEXTUREPARAMETERIIVPROC_MT)cmgr->getProcAddress("glGetTextureParameterIiv");
+       if (!GetTextureParameterIuiv) GetTextureParameterIuiv = (PFNGLGETTEXTUREPARAMETERIUIVPROC_MT)cmgr->getProcAddress("glGetTextureParameterIuiv");
+       if (!GetTextureParameteriv) GetTextureParameteriv = (PFNGLGETTEXTUREPARAMETERIVPROC_MT)cmgr->getProcAddress("glGetTextureParameteriv");
+       if (!CreateVertexArrays) CreateVertexArrays = (PFNGLCREATEVERTEXARRAYSPROC_MT)cmgr->getProcAddress("glCreateVertexArrays");
+       if (!DisableVertexArrayAttrib) DisableVertexArrayAttrib = (PFNGLDISABLEVERTEXARRAYATTRIBPROC_MT)cmgr->getProcAddress("glDisableVertexArrayAttrib");
+       if (!EnableVertexArrayAttrib) EnableVertexArrayAttrib = (PFNGLENABLEVERTEXARRAYATTRIBPROC_MT)cmgr->getProcAddress("glEnableVertexArrayAttrib");
+       if (!VertexArrayElementBuffer) VertexArrayElementBuffer = (PFNGLVERTEXARRAYELEMENTBUFFERPROC_MT)cmgr->getProcAddress("glVertexArrayElementBuffer");
+       if (!VertexArrayVertexBuffer) VertexArrayVertexBuffer = (PFNGLVERTEXARRAYVERTEXBUFFERPROC_MT)cmgr->getProcAddress("glVertexArrayVertexBuffer");
+       if (!VertexArrayVertexBuffers) VertexArrayVertexBuffers = (PFNGLVERTEXARRAYVERTEXBUFFERSPROC_MT)cmgr->getProcAddress("glVertexArrayVertexBuffers");
+       if (!VertexArrayAttribBinding) VertexArrayAttribBinding = (PFNGLVERTEXARRAYATTRIBBINDINGPROC_MT)cmgr->getProcAddress("glVertexArrayAttribBinding");
+       if (!VertexArrayAttribFormat) VertexArrayAttribFormat = (PFNGLVERTEXARRAYATTRIBFORMATPROC_MT)cmgr->getProcAddress("glVertexArrayAttribFormat");
+       if (!VertexArrayAttribIFormat) VertexArrayAttribIFormat = (PFNGLVERTEXARRAYATTRIBIFORMATPROC_MT)cmgr->getProcAddress("glVertexArrayAttribIFormat");
+       if (!VertexArrayAttribLFormat) VertexArrayAttribLFormat = (PFNGLVERTEXARRAYATTRIBLFORMATPROC_MT)cmgr->getProcAddress("glVertexArrayAttribLFormat");
+       if (!VertexArrayBindingDivisor) VertexArrayBindingDivisor = (PFNGLVERTEXARRAYBINDINGDIVISORPROC_MT)cmgr->getProcAddress("glVertexArrayBindingDivisor");
+       if (!GetVertexArrayiv) GetVertexArrayiv = (PFNGLGETVERTEXARRAYIVPROC_MT)cmgr->getProcAddress("glGetVertexArrayiv");
+       if (!GetVertexArrayIndexediv) GetVertexArrayIndexediv = (PFNGLGETVERTEXARRAYINDEXEDIVPROC_MT)cmgr->getProcAddress("glGetVertexArrayIndexediv");
+       if (!GetVertexArrayIndexed64iv) GetVertexArrayIndexed64iv = (PFNGLGETVERTEXARRAYINDEXED64IVPROC_MT)cmgr->getProcAddress("glGetVertexArrayIndexed64iv");
+       if (!CreateSamplers) CreateSamplers = (PFNGLCREATESAMPLERSPROC_MT)cmgr->getProcAddress("glCreateSamplers");
+       if (!CreateProgramPipelines) CreateProgramPipelines = (PFNGLCREATEPROGRAMPIPELINESPROC_MT)cmgr->getProcAddress("glCreateProgramPipelines");
+       if (!CreateQueries) CreateQueries = (PFNGLCREATEQUERIESPROC_MT)cmgr->getProcAddress("glCreateQueries");
+       if (!GetQueryBufferObjecti64v) GetQueryBufferObjecti64v = (PFNGLGETQUERYBUFFEROBJECTI64VPROC_MT)cmgr->getProcAddress("glGetQueryBufferObjecti64v");
+       if (!GetQueryBufferObjectiv) GetQueryBufferObjectiv = (PFNGLGETQUERYBUFFEROBJECTIVPROC_MT)cmgr->getProcAddress("glGetQueryBufferObjectiv");
+       if (!GetQueryBufferObjectui64v) GetQueryBufferObjectui64v = (PFNGLGETQUERYBUFFEROBJECTUI64VPROC_MT)cmgr->getProcAddress("glGetQueryBufferObjectui64v");
+       if (!GetQueryBufferObjectuiv) GetQueryBufferObjectuiv = (PFNGLGETQUERYBUFFEROBJECTUIVPROC_MT)cmgr->getProcAddress("glGetQueryBufferObjectuiv");
+       if (!MemoryBarrierByRegion) MemoryBarrierByRegion = (PFNGLMEMORYBARRIERBYREGIONPROC_MT)cmgr->getProcAddress("glMemoryBarrierByRegion");
+       if (!GetTextureSubImage) GetTextureSubImage = (PFNGLGETTEXTURESUBIMAGEPROC_MT)cmgr->getProcAddress("glGetTextureSubImage");
+       if (!GetCompressedTextureSubImage) GetCompressedTextureSubImage = (PFNGLGETCOMPRESSEDTEXTURESUBIMAGEPROC_MT)cmgr->getProcAddress("glGetCompressedTextureSubImage");
+       if (!GetGraphicsResetStatus) GetGraphicsResetStatus = (PFNGLGETGRAPHICSRESETSTATUSPROC_MT)cmgr->getProcAddress("glGetGraphicsResetStatus");
+       if (!GetGraphicsResetStatus) GetGraphicsResetStatus = (PFNGLGETGRAPHICSRESETSTATUSPROC_MT)cmgr->getProcAddress("glGetGraphicsResetStatusARB");
+       if (!GetnCompressedTexImage) GetnCompressedTexImage = (PFNGLGETNCOMPRESSEDTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetnCompressedTexImage");
+       if (!GetnCompressedTexImage) GetnCompressedTexImage = (PFNGLGETNCOMPRESSEDTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetnCompressedTexImageARB");
+       if (!GetnTexImage) GetnTexImage = (PFNGLGETNTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetnTexImage");
+       if (!GetnTexImage) GetnTexImage = (PFNGLGETNTEXIMAGEPROC_MT)cmgr->getProcAddress("glGetnTexImageARB");
+       if (!GetnUniformdv) GetnUniformdv = (PFNGLGETNUNIFORMDVPROC_MT)cmgr->getProcAddress("glGetnUniformdv");
+       if (!GetnUniformdv) GetnUniformdv = (PFNGLGETNUNIFORMDVPROC_MT)cmgr->getProcAddress("glGetnUniformdvARB");
+       if (!GetnUniformfv) GetnUniformfv = (PFNGLGETNUNIFORMFVPROC_MT)cmgr->getProcAddress("glGetnUniformfv");
+       if (!GetnUniformfv) GetnUniformfv = (PFNGLGETNUNIFORMFVPROC_MT)cmgr->getProcAddress("glGetnUniformfvARB");
+       if (!GetnUniformiv) GetnUniformiv = (PFNGLGETNUNIFORMIVPROC_MT)cmgr->getProcAddress("glGetnUniformiv");
+       if (!GetnUniformiv) GetnUniformiv = (PFNGLGETNUNIFORMIVPROC_MT)cmgr->getProcAddress("glGetnUniformivARB");
+       if (!GetnUniformuiv) GetnUniformuiv = (PFNGLGETNUNIFORMUIVPROC_MT)cmgr->getProcAddress("glGetnUniformuiv");
+       if (!GetnUniformuiv) GetnUniformuiv = (PFNGLGETNUNIFORMUIVPROC_MT)cmgr->getProcAddress("glGetnUniformuivARB");
+       if (!ReadnPixels) ReadnPixels = (PFNGLREADNPIXELSPROC_MT)cmgr->getProcAddress("glReadnPixels");
+       if (!ReadnPixels) ReadnPixels = (PFNGLREADNPIXELSPROC_MT)cmgr->getProcAddress("glReadnPixelsARB");
+       if (!TextureBarrier) TextureBarrier = (PFNGLTEXTUREBARRIERPROC_MT)cmgr->getProcAddress("glTextureBarrier");
+       if (!SpecializeShader) SpecializeShader = (PFNGLSPECIALIZESHADERPROC_MT)cmgr->getProcAddress("glSpecializeShader");
+       if (!SpecializeShader) SpecializeShader = (PFNGLSPECIALIZESHADERPROC_MT)cmgr->getProcAddress("glSpecializeShaderARB");
+       if (!MultiDrawArraysIndirectCount) MultiDrawArraysIndirectCount = (PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawArraysIndirectCount");
+       if (!MultiDrawArraysIndirectCount) MultiDrawArraysIndirectCount = (PFNGLMULTIDRAWARRAYSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawArraysIndirectCountARB");
+       if (!MultiDrawElementsIndirectCount) MultiDrawElementsIndirectCount = (PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawElementsIndirectCount");
+       if (!MultiDrawElementsIndirectCount) MultiDrawElementsIndirectCount = (PFNGLMULTIDRAWELEMENTSINDIRECTCOUNTPROC_MT)cmgr->getProcAddress("glMultiDrawElementsIndirectCountARB");
+       if (!PolygonOffsetClamp) PolygonOffsetClamp = (PFNGLPOLYGONOFFSETCLAMPPROC_MT)cmgr->getProcAddress("glPolygonOffsetClamp");
+       if (!GenPerfMonitorsEX) GenPerfMonitorsEX = (PFNGLGENPERFMONITORSEXPROC_MT)cmgr->getProcAddress("glGenPerfMonitorsEX");
+       if (!PrimitiveBoundingBox) PrimitiveBoundingBox = (PFNGLPRIMITIVEBOUNDINGBOXPROC_MT)cmgr->getProcAddress("glPrimitiveBoundingBoxARB");
+       if (!GetTextureHandle) GetTextureHandle = (PFNGLGETTEXTUREHANDLEPROC_MT)cmgr->getProcAddress("glGetTextureHandleARB");
+       if (!GetTextureSamplerHandle) GetTextureSamplerHandle = (PFNGLGETTEXTURESAMPLERHANDLEPROC_MT)cmgr->getProcAddress("glGetTextureSamplerHandleARB");
+       if (!MakeTextureHandleResident) MakeTextureHandleResident = (PFNGLMAKETEXTUREHANDLERESIDENTPROC_MT)cmgr->getProcAddress("glMakeTextureHandleResidentARB");
+       if (!MakeTextureHandleNonResident) MakeTextureHandleNonResident = (PFNGLMAKETEXTUREHANDLENONRESIDENTPROC_MT)cmgr->getProcAddress("glMakeTextureHandleNonResidentARB");
+       if (!GetImageHandle) GetImageHandle = (PFNGLGETIMAGEHANDLEPROC_MT)cmgr->getProcAddress("glGetImageHandleARB");
+       if (!MakeImageHandleResident) MakeImageHandleResident = (PFNGLMAKEIMAGEHANDLERESIDENTPROC_MT)cmgr->getProcAddress("glMakeImageHandleResidentARB");
+       if (!MakeImageHandleNonResident) MakeImageHandleNonResident = (PFNGLMAKEIMAGEHANDLENONRESIDENTPROC_MT)cmgr->getProcAddress("glMakeImageHandleNonResidentARB");
+       if (!UniformHandleui64) UniformHandleui64 = (PFNGLUNIFORMHANDLEUI64PROC_MT)cmgr->getProcAddress("glUniformHandleui64ARB");
+       if (!UniformHandleui64v) UniformHandleui64v = (PFNGLUNIFORMHANDLEUI64VPROC_MT)cmgr->getProcAddress("glUniformHandleui64vARB");
+       if (!ProgramUniformHandleui64) ProgramUniformHandleui64 = (PFNGLPROGRAMUNIFORMHANDLEUI64PROC_MT)cmgr->getProcAddress("glProgramUniformHandleui64ARB");
+       if (!ProgramUniformHandleui64v) ProgramUniformHandleui64v = (PFNGLPROGRAMUNIFORMHANDLEUI64VPROC_MT)cmgr->getProcAddress("glProgramUniformHandleui64vARB");
+       if (!IsTextureHandleResident) IsTextureHandleResident = (PFNGLISTEXTUREHANDLERESIDENTPROC_MT)cmgr->getProcAddress("glIsTextureHandleResidentARB");
+       if (!IsImageHandleResident) IsImageHandleResident = (PFNGLISIMAGEHANDLERESIDENTPROC_MT)cmgr->getProcAddress("glIsImageHandleResidentARB");
+       if (!VertexAttribL1ui64) VertexAttribL1ui64 = (PFNGLVERTEXATTRIBL1UI64PROC_MT)cmgr->getProcAddress("glVertexAttribL1ui64ARB");
+       if (!VertexAttribL1ui64v) VertexAttribL1ui64v = (PFNGLVERTEXATTRIBL1UI64VPROC_MT)cmgr->getProcAddress("glVertexAttribL1ui64vARB");
+       if (!GetVertexAttribLui64v) GetVertexAttribLui64v = (PFNGLGETVERTEXATTRIBLUI64VPROC_MT)cmgr->getProcAddress("glGetVertexAttribLui64vARB");
+       if (!CreateSyncFromCLevent) CreateSyncFromCLevent = (PFNGLCREATESYNCFROMCLEVENTPROC_MT)cmgr->getProcAddress("glCreateSyncFromCLeventARB");
+       if (!DispatchComputeGroupSize) DispatchComputeGroupSize = (PFNGLDISPATCHCOMPUTEGROUPSIZEPROC_MT)cmgr->getProcAddress("glDispatchComputeGroupSizeARB");
+       if (!FramebufferTextureFace) FramebufferTextureFace = (PFNGLFRAMEBUFFERTEXTUREFACEPROC_MT)cmgr->getProcAddress("glFramebufferTextureFaceARB");
+       if (!Uniform1i64) Uniform1i64 = (PFNGLUNIFORM1I64PROC_MT)cmgr->getProcAddress("glUniform1i64ARB");
+       if (!Uniform2i64) Uniform2i64 = (PFNGLUNIFORM2I64PROC_MT)cmgr->getProcAddress("glUniform2i64ARB");
+       if (!Uniform3i64) Uniform3i64 = (PFNGLUNIFORM3I64PROC_MT)cmgr->getProcAddress("glUniform3i64ARB");
+       if (!Uniform4i64) Uniform4i64 = (PFNGLUNIFORM4I64PROC_MT)cmgr->getProcAddress("glUniform4i64ARB");
+       if (!Uniform1i64v) Uniform1i64v = (PFNGLUNIFORM1I64VPROC_MT)cmgr->getProcAddress("glUniform1i64vARB");
+       if (!Uniform2i64v) Uniform2i64v = (PFNGLUNIFORM2I64VPROC_MT)cmgr->getProcAddress("glUniform2i64vARB");
+       if (!Uniform3i64v) Uniform3i64v = (PFNGLUNIFORM3I64VPROC_MT)cmgr->getProcAddress("glUniform3i64vARB");
+       if (!Uniform4i64v) Uniform4i64v = (PFNGLUNIFORM4I64VPROC_MT)cmgr->getProcAddress("glUniform4i64vARB");
+       if (!Uniform1ui64) Uniform1ui64 = (PFNGLUNIFORM1UI64PROC_MT)cmgr->getProcAddress("glUniform1ui64ARB");
+       if (!Uniform2ui64) Uniform2ui64 = (PFNGLUNIFORM2UI64PROC_MT)cmgr->getProcAddress("glUniform2ui64ARB");
+       if (!Uniform3ui64) Uniform3ui64 = (PFNGLUNIFORM3UI64PROC_MT)cmgr->getProcAddress("glUniform3ui64ARB");
+       if (!Uniform4ui64) Uniform4ui64 = (PFNGLUNIFORM4UI64PROC_MT)cmgr->getProcAddress("glUniform4ui64ARB");
+       if (!Uniform1ui64v) Uniform1ui64v = (PFNGLUNIFORM1UI64VPROC_MT)cmgr->getProcAddress("glUniform1ui64vARB");
+       if (!Uniform2ui64v) Uniform2ui64v = (PFNGLUNIFORM2UI64VPROC_MT)cmgr->getProcAddress("glUniform2ui64vARB");
+       if (!Uniform3ui64v) Uniform3ui64v = (PFNGLUNIFORM3UI64VPROC_MT)cmgr->getProcAddress("glUniform3ui64vARB");
+       if (!Uniform4ui64v) Uniform4ui64v = (PFNGLUNIFORM4UI64VPROC_MT)cmgr->getProcAddress("glUniform4ui64vARB");
+       if (!GetUniformi64v) GetUniformi64v = (PFNGLGETUNIFORMI64VPROC_MT)cmgr->getProcAddress("glGetUniformi64vARB");
+       if (!GetUniformui64v) GetUniformui64v = (PFNGLGETUNIFORMUI64VPROC_MT)cmgr->getProcAddress("glGetUniformui64vARB");
+       if (!GetnUniformi64v) GetnUniformi64v = (PFNGLGETNUNIFORMI64VPROC_MT)cmgr->getProcAddress("glGetnUniformi64vARB");
+       if (!GetnUniformui64v) GetnUniformui64v = (PFNGLGETNUNIFORMUI64VPROC_MT)cmgr->getProcAddress("glGetnUniformui64vARB");
+       if (!ProgramUniform1i64) ProgramUniform1i64 = (PFNGLPROGRAMUNIFORM1I64PROC_MT)cmgr->getProcAddress("glProgramUniform1i64ARB");
+       if (!ProgramUniform2i64) ProgramUniform2i64 = (PFNGLPROGRAMUNIFORM2I64PROC_MT)cmgr->getProcAddress("glProgramUniform2i64ARB");
+       if (!ProgramUniform3i64) ProgramUniform3i64 = (PFNGLPROGRAMUNIFORM3I64PROC_MT)cmgr->getProcAddress("glProgramUniform3i64ARB");
+       if (!ProgramUniform4i64) ProgramUniform4i64 = (PFNGLPROGRAMUNIFORM4I64PROC_MT)cmgr->getProcAddress("glProgramUniform4i64ARB");
+       if (!ProgramUniform1i64v) ProgramUniform1i64v = (PFNGLPROGRAMUNIFORM1I64VPROC_MT)cmgr->getProcAddress("glProgramUniform1i64vARB");
+       if (!ProgramUniform2i64v) ProgramUniform2i64v = (PFNGLPROGRAMUNIFORM2I64VPROC_MT)cmgr->getProcAddress("glProgramUniform2i64vARB");
+       if (!ProgramUniform3i64v) ProgramUniform3i64v = (PFNGLPROGRAMUNIFORM3I64VPROC_MT)cmgr->getProcAddress("glProgramUniform3i64vARB");
+       if (!ProgramUniform4i64v) ProgramUniform4i64v = (PFNGLPROGRAMUNIFORM4I64VPROC_MT)cmgr->getProcAddress("glProgramUniform4i64vARB");
+       if (!ProgramUniform1ui64) ProgramUniform1ui64 = (PFNGLPROGRAMUNIFORM1UI64PROC_MT)cmgr->getProcAddress("glProgramUniform1ui64ARB");
+       if (!ProgramUniform2ui64) ProgramUniform2ui64 = (PFNGLPROGRAMUNIFORM2UI64PROC_MT)cmgr->getProcAddress("glProgramUniform2ui64ARB");
+       if (!ProgramUniform3ui64) ProgramUniform3ui64 = (PFNGLPROGRAMUNIFORM3UI64PROC_MT)cmgr->getProcAddress("glProgramUniform3ui64ARB");
+       if (!ProgramUniform4ui64) ProgramUniform4ui64 = (PFNGLPROGRAMUNIFORM4UI64PROC_MT)cmgr->getProcAddress("glProgramUniform4ui64ARB");
+       if (!ProgramUniform1ui64v) ProgramUniform1ui64v = (PFNGLPROGRAMUNIFORM1UI64VPROC_MT)cmgr->getProcAddress("glProgramUniform1ui64vARB");
+       if (!ProgramUniform2ui64v) ProgramUniform2ui64v = (PFNGLPROGRAMUNIFORM2UI64VPROC_MT)cmgr->getProcAddress("glProgramUniform2ui64vARB");
+       if (!ProgramUniform3ui64v) ProgramUniform3ui64v = (PFNGLPROGRAMUNIFORM3UI64VPROC_MT)cmgr->getProcAddress("glProgramUniform3ui64vARB");
+       if (!ProgramUniform4ui64v) ProgramUniform4ui64v = (PFNGLPROGRAMUNIFORM4UI64VPROC_MT)cmgr->getProcAddress("glProgramUniform4ui64vARB");
+       if (!MaxShaderCompilerThreads) MaxShaderCompilerThreads = (PFNGLMAXSHADERCOMPILERTHREADSPROC_MT)cmgr->getProcAddress("glMaxShaderCompilerThreadsARB");
+       if (!MaxShaderCompilerThreads) MaxShaderCompilerThreads = (PFNGLMAXSHADERCOMPILERTHREADSPROC_MT)cmgr->getProcAddress("glMaxShaderCompilerThreadsKHR");
+       if (!FramebufferSampleLocationsfv) FramebufferSampleLocationsfv = (PFNGLFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT)cmgr->getProcAddress("glFramebufferSampleLocationsfvARB");
+       if (!NamedFramebufferSampleLocationsfv) NamedFramebufferSampleLocationsfv = (PFNGLNAMEDFRAMEBUFFERSAMPLELOCATIONSFVPROC_MT)cmgr->getProcAddress("glNamedFramebufferSampleLocationsfvARB");
+       if (!EvaluateDepthValues) EvaluateDepthValues = (PFNGLEVALUATEDEPTHVALUESPROC_MT)cmgr->getProcAddress("glEvaluateDepthValuesARB");
+       if (!NamedString) NamedString = (PFNGLNAMEDSTRINGPROC_MT)cmgr->getProcAddress("glNamedStringARB");
+       if (!DeleteNamedString) DeleteNamedString = (PFNGLDELETENAMEDSTRINGPROC_MT)cmgr->getProcAddress("glDeleteNamedStringARB");
+       if (!CompileShaderInclude) CompileShaderInclude = (PFNGLCOMPILESHADERINCLUDEPROC_MT)cmgr->getProcAddress("glCompileShaderIncludeARB");
+       if (!IsNamedString) IsNamedString = (PFNGLISNAMEDSTRINGPROC_MT)cmgr->getProcAddress("glIsNamedStringARB");
+       if (!GetNamedString) GetNamedString = (PFNGLGETNAMEDSTRINGPROC_MT)cmgr->getProcAddress("glGetNamedStringARB");
+       if (!GetNamedStringiv) GetNamedStringiv = (PFNGLGETNAMEDSTRINGIVPROC_MT)cmgr->getProcAddress("glGetNamedStringivARB");
+       if (!BufferPageCommitment) BufferPageCommitment = (PFNGLBUFFERPAGECOMMITMENTPROC_MT)cmgr->getProcAddress("glBufferPageCommitmentARB");
+       if (!NamedBufferPageCommitment) NamedBufferPageCommitment = (PFNGLNAMEDBUFFERPAGECOMMITMENTPROC_MT)cmgr->getProcAddress("glNamedBufferPageCommitmentARB");
+       if (!TexPageCommitment) TexPageCommitment = (PFNGLTEXPAGECOMMITMENTPROC_MT)cmgr->getProcAddress("glTexPageCommitmentARB");
+
+       // get the extension string, chop it up
+       std::string ext_string = std::string((char*)GetString(EXTENSIONS));
+       std::stringstream ext_ss(ext_string);
+       std::string tmp;
+       while (std::getline(ext_ss, tmp, ' '))
+               extensions.emplace(tmp);
+
+}