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thorvg/src/renderer/gl_engine/tvgGl.h
Hermet Park 0b77659136 infra: added opengl_es extra option for explicit selection 
usages:
meson setup build -Dengines="gl"  //opengl
meson setup build -Dengines="gl" -Dextra="opengl_es"  //opengl es
2025-05-08 12:00:22 +03:00

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/*
* Copyright (c) 2025 the ThorVG project. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _TVG_GL_H_
#define _TVG_GL_H_
#ifdef __EMSCRIPTEN__
#include <GLES3/gl3.h>
#include <emscripten/html5_webgl.h>
#define GL_CHECK(stmt) stmt
#else //__EMSCRIPTEN__
#if defined (THORVG_GL_TARGET_GLES)
#define TVG_REQUIRE_GL_MAJOR_VER 3
#define TVG_REQUIRE_GL_MINOR_VER 0
#else
#define TVG_REQUIRE_GL_MAJOR_VER 3
#define TVG_REQUIRE_GL_MINOR_VER 3
#endif
#ifdef _DEBUG
#define GL_CHECK(stmt) stmt; assert(glGetError() == GL_NO_ERROR);
#else
#define GL_CHECK(stmt) stmt
#endif
#if defined(_WIN32) && !defined(APIENTRY) && !defined(__CYGWIN__) && !defined(__SCITECH_SNAP__)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN 1
#endif
#include <windows.h>
#endif
#ifdef _WIN64
typedef signed long long int khronos_intptr_t;
typedef unsigned long long int khronos_uintptr_t;
typedef signed long long int khronos_ssize_t;
typedef unsigned long long int khronos_usize_t;
#else
typedef signed long int khronos_intptr_t;
typedef unsigned long int khronos_uintptr_t;
typedef signed long int khronos_ssize_t;
typedef unsigned long int khronos_usize_t;
#endif
typedef signed char khronos_int8_t;
typedef unsigned char khronos_uint8_t;
typedef signed short int khronos_int16_t;
typedef unsigned short int khronos_uint16_t;
typedef float khronos_float_t;
typedef khronos_intptr_t GLintptr;
typedef khronos_ssize_t GLsizeiptr;
#ifndef GL_VERSION_1_0
#define GL_VERSION_1_0 1
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;
#define GL_DEPTH_BUFFER_BIT 0x00000100
#define GL_STENCIL_BUFFER_BIT 0x00000400
#define GL_COLOR_BUFFER_BIT 0x00004000
#define GL_FALSE 0
#define GL_TRUE 1
#define GL_POINTS 0x0000
#define GL_LINES 0x0001
#define GL_LINE_LOOP 0x0002
#define GL_LINE_STRIP 0x0003
#define GL_TRIANGLES 0x0004
#define GL_TRIANGLE_STRIP 0x0005
#define GL_TRIANGLE_FAN 0x0006
#define GL_QUADS 0x0007
#define GL_NEVER 0x0200
#define GL_LESS 0x0201
#define GL_EQUAL 0x0202
#define GL_LEQUAL 0x0203
#define GL_GREATER 0x0204
#define GL_NOTEQUAL 0x0205
#define GL_GEQUAL 0x0206
#define GL_ALWAYS 0x0207
#define GL_ZERO 0
#define GL_ONE 1
#define GL_SRC_COLOR 0x0300
#define GL_ONE_MINUS_SRC_COLOR 0x0301
#define GL_SRC_ALPHA 0x0302
#define GL_ONE_MINUS_SRC_ALPHA 0x0303
#define GL_DST_ALPHA 0x0304
#define GL_ONE_MINUS_DST_ALPHA 0x0305
#define GL_DST_COLOR 0x0306
#define GL_ONE_MINUS_DST_COLOR 0x0307
#define GL_SRC_ALPHA_SATURATE 0x0308
#define GL_NONE 0
#define GL_FRONT_LEFT 0x0400
#define GL_FRONT_RIGHT 0x0401
#define GL_BACK_LEFT 0x0402
#define GL_BACK_RIGHT 0x0403
#define GL_FRONT 0x0404
#define GL_BACK 0x0405
#define GL_LEFT 0x0406
#define GL_RIGHT 0x0407
#define GL_FRONT_AND_BACK 0x0408
#define GL_NO_ERROR 0
#define GL_INVALID_ENUM 0x0500
#define GL_INVALID_VALUE 0x0501
#define GL_INVALID_OPERATION 0x0502
#define GL_OUT_OF_MEMORY 0x0505
#define GL_CW 0x0900
#define GL_CCW 0x0901
#define GL_POINT_SIZE 0x0B11
#define GL_POINT_SIZE_RANGE 0x0B12
#define GL_POINT_SIZE_GRANULARITY 0x0B13
#define GL_LINE_SMOOTH 0x0B20
#define GL_LINE_WIDTH 0x0B21
#define GL_LINE_WIDTH_RANGE 0x0B22
#define GL_LINE_WIDTH_GRANULARITY 0x0B23
#define GL_POLYGON_MODE 0x0B40
#define GL_POLYGON_SMOOTH 0x0B41
#define GL_CULL_FACE 0x0B44
#define GL_CULL_FACE_MODE 0x0B45
#define GL_FRONT_FACE 0x0B46
#define GL_DEPTH_RANGE 0x0B70
#define GL_DEPTH_TEST 0x0B71
#define GL_DEPTH_WRITEMASK 0x0B72
#define GL_DEPTH_CLEAR_VALUE 0x0B73
#define GL_DEPTH_FUNC 0x0B74
#define GL_STENCIL_TEST 0x0B90
#define GL_STENCIL_CLEAR_VALUE 0x0B91
#define GL_STENCIL_FUNC 0x0B92
#define GL_STENCIL_VALUE_MASK 0x0B93
#define GL_STENCIL_FAIL 0x0B94
#define GL_STENCIL_PASS_DEPTH_FAIL 0x0B95
#define GL_STENCIL_PASS_DEPTH_PASS 0x0B96
#define GL_STENCIL_REF 0x0B97
#define GL_STENCIL_WRITEMASK 0x0B98
#define GL_VIEWPORT 0x0BA2
#define GL_DITHER 0x0BD0
#define GL_BLEND_DST 0x0BE0
#define GL_BLEND_SRC 0x0BE1
#define GL_BLEND 0x0BE2
#define GL_LOGIC_OP_MODE 0x0BF0
#define GL_DRAW_BUFFER 0x0C01
#define GL_READ_BUFFER 0x0C02
#define GL_SCISSOR_BOX 0x0C10
#define GL_SCISSOR_TEST 0x0C11
#define GL_COLOR_CLEAR_VALUE 0x0C22
#define GL_COLOR_WRITEMASK 0x0C23
#define GL_DOUBLEBUFFER 0x0C32
#define GL_STEREO 0x0C33
#define GL_LINE_SMOOTH_HINT 0x0C52
#define GL_POLYGON_SMOOTH_HINT 0x0C53
#define GL_UNPACK_SWAP_BYTES 0x0CF0
#define GL_UNPACK_LSB_FIRST 0x0CF1
#define GL_UNPACK_ROW_LENGTH 0x0CF2
#define GL_UNPACK_SKIP_ROWS 0x0CF3
#define GL_UNPACK_SKIP_PIXELS 0x0CF4
#define GL_UNPACK_ALIGNMENT 0x0CF5
#define GL_PACK_SWAP_BYTES 0x0D00
#define GL_PACK_LSB_FIRST 0x0D01
#define GL_PACK_ROW_LENGTH 0x0D02
#define GL_PACK_SKIP_ROWS 0x0D03
#define GL_PACK_SKIP_PIXELS 0x0D04
#define GL_PACK_ALIGNMENT 0x0D05
#define GL_MAX_TEXTURE_SIZE 0x0D33
#define GL_MAX_VIEWPORT_DIMS 0x0D3A
#define GL_SUBPIXEL_BITS 0x0D50
#define GL_TEXTURE_1D 0x0DE0
#define GL_TEXTURE_2D 0x0DE1
#define GL_TEXTURE_WIDTH 0x1000
#define GL_TEXTURE_HEIGHT 0x1001
#define GL_TEXTURE_BORDER_COLOR 0x1004
#define GL_DONT_CARE 0x1100
#define GL_FASTEST 0x1101
#define GL_NICEST 0x1102
#define GL_BYTE 0x1400
#define GL_UNSIGNED_BYTE 0x1401
#define GL_SHORT 0x1402
#define GL_UNSIGNED_SHORT 0x1403
#define GL_INT 0x1404
#define GL_UNSIGNED_INT 0x1405
#define GL_FLOAT 0x1406
#define GL_STACK_OVERFLOW 0x0503
#define GL_STACK_UNDERFLOW 0x0504
#define GL_CLEAR 0x1500
#define GL_AND 0x1501
#define GL_AND_REVERSE 0x1502
#define GL_COPY 0x1503
#define GL_AND_INVERTED 0x1504
#define GL_NOOP 0x1505
#define GL_XOR 0x1506
#define GL_OR 0x1507
#define GL_NOR 0x1508
#define GL_EQUIV 0x1509
#define GL_INVERT 0x150A
#define GL_OR_REVERSE 0x150B
#define GL_COPY_INVERTED 0x150C
#define GL_OR_INVERTED 0x150D
#define GL_NAND 0x150E
#define GL_SET 0x150F
#define GL_TEXTURE 0x1702
#define GL_COLOR 0x1800
#define GL_DEPTH 0x1801
#define GL_STENCIL 0x1802
#define GL_STENCIL_INDEX 0x1901
#define GL_DEPTH_COMPONENT 0x1902
#define GL_RED 0x1903
#define GL_GREEN 0x1904
#define GL_BLUE 0x1905
#define GL_ALPHA 0x1906
#define GL_RGB 0x1907
#define GL_RGBA 0x1908
#define GL_POINT 0x1B00
#define GL_LINE 0x1B01
#define GL_FILL 0x1B02
#define GL_KEEP 0x1E00
#define GL_REPLACE 0x1E01
#define GL_INCR 0x1E02
#define GL_DECR 0x1E03
#define GL_VENDOR 0x1F00
#define GL_RENDERER 0x1F01
#define GL_VERSION 0x1F02
#define GL_EXTENSIONS 0x1F03
#define GL_NEAREST 0x2600
#define GL_LINEAR 0x2601
#define GL_NEAREST_MIPMAP_NEAREST 0x2700
#define GL_LINEAR_MIPMAP_NEAREST 0x2701
#define GL_NEAREST_MIPMAP_LINEAR 0x2702
#define GL_LINEAR_MIPMAP_LINEAR 0x2703
#define GL_TEXTURE_MAG_FILTER 0x2800
#define GL_TEXTURE_MIN_FILTER 0x2801
#define GL_TEXTURE_WRAP_S 0x2802
#define GL_TEXTURE_WRAP_T 0x2803
#define GL_REPEAT 0x2901
typedef void (*PFNGLCULLFACEPROC)(GLenum mode);
typedef void (*PFNGLFRONTFACEPROC)(GLenum mode);
typedef void (*PFNGLSCISSORPROC)(GLint x, GLint y, GLsizei width, GLsizei height);
typedef void (*PFNGLTEXPARAMETERIPROC)(GLenum target, GLenum pname, GLint param);
typedef void (*PFNGLTEXIMAGE2DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels);
typedef void (*PFNGLDRAWBUFFERPROC)(GLenum buf);
typedef void (*PFNGLCLEARPROC)(GLbitfield mask);
typedef void (*PFNGLCLEARCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
typedef void (*PFNGLCLEARSTENCILPROC)(GLint s);
typedef void (*PFNGLCLEARDEPTHPROC)(GLdouble depth);
typedef void (*PFNGLCLEARDEPTHFPROC)(GLdouble depth); // GLES
typedef void (*PFNGLCOLORMASKPROC)(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
typedef void (*PFNGLDEPTHMASKPROC)(GLboolean flag);
typedef void (*PFNGLDISABLEPROC)(GLenum cap);
typedef void (*PFNGLENABLEPROC)(GLenum cap);
typedef void (*PFNGLBLENDFUNCPROC)(GLenum sfactor, GLenum dfactor);
typedef void (*PFNGLSTENCILFUNCPROC)(GLenum func, GLint ref, GLuint mask);
typedef void (*PFNGLSTENCILOPPROC)(GLenum fail, GLenum zfail, GLenum zpass);
typedef void (*PFNGLDEPTHFUNCPROC)(GLenum func);
typedef GLenum (*PFNGLGETERRORPROC)(void);
typedef void (*PFNGLGETINTEGERVPROC)(GLenum pname, GLint *data);
typedef const GLubyte *(*PFNGLGETSTRINGPROC) (GLenum name);
typedef void (*PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height);
//typedef void (*PFNGLHINTPROC)(GLenum target, GLenum mode);
//typedef void (*PFNGLLINEWIDTHPROC)(GLfloat width);
//typedef void (*PFNGLPOINTSIZEPROC)(GLfloat size);
//typedef void (*PFNGLPOLYGONMODEPROC)(GLenum face, GLenum mode);
//typedef void (*PFNGLTEXPARAMETERFPROC)(GLenum target, GLenum pname, GLfloat param);
//typedef void (*PFNGLTEXPARAMETERFVPROC)(GLenum target, GLenum pname, const GLfloat *params);
//typedef void (*PFNGLTEXPARAMETERIVPROC)(GLenum target, GLenum pname, const GLint *params);
//typedef void (*PFNGLTEXIMAGE1DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLint border, GLenum format, GLenum type, const void *pixels);
//typedef void (*PFNGLSTENCILMASKPROC) (GLuint mask);
//typedef void (*PFNGLFINISHPROC)(void);
//typedef void (*PFNGLFLUSHPROC)(void);
//typedef void (*PFNGLLOGICOPPROC)(GLenum opcode);
//typedef void (*PFNGLPIXELSTOREFPROC)(GLenum pname, GLfloat param);
//typedef void (*PFNGLPIXELSTOREIPROC)(GLenum pname, GLint param);
//typedef void (*PFNGLREADBUFFERPROC)(GLenum src);
//typedef void (*PFNGLREADPIXELSPROC)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
//typedef void (*PFNGLGETBOOLEANVPROC)(GLenum pname, GLboolean *data);
//typedef void (*PFNGLGETDOUBLEVPROC)(GLenum pname, GLdouble *data);
//typedef void (*PFNGLGETFLOATVPROC)(GLenum pname, GLfloat *data);
//typedef void (*PFNGLGETTEXIMAGEPROC)(GLenum target, GLint level, GLenum format, GLenum type, void *pixels);
//typedef void (*PFNGLGETTEXPARAMETERFVPROC)(GLenum target, GLenum pname, GLfloat *params);
//typedef void (*PFNGLGETTEXPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
//typedef void (*PFNGLGETTEXLEVELPARAMETERFVPROC)(GLenum target, GLint level, GLenum pname, GLfloat *params);
//typedef void (*PFNGLGETTEXLEVELPARAMETERIVPROC)(GLenum target, GLint level, GLenum pname, GLint *params);
//typedef GLboolean (*PFNGLISENABLEDPROC)(GLenum cap);
//typedef void (*PFNGLDEPTHRANGEPROC)(GLdouble n, GLdouble f);
#endif /* GL_VERSION_1_0 */
#ifndef GL_VERSION_1_1
#define GL_VERSION_1_1 1
typedef khronos_float_t GLclampf;
typedef double GLclampd;
#define GL_COLOR_LOGIC_OP 0x0BF2
#define GL_POLYGON_OFFSET_UNITS 0x2A00
#define GL_POLYGON_OFFSET_POINT 0x2A01
#define GL_POLYGON_OFFSET_LINE 0x2A02
#define GL_POLYGON_OFFSET_FILL 0x8037
#define GL_POLYGON_OFFSET_FACTOR 0x8038
#define GL_TEXTURE_BINDING_1D 0x8068
#define GL_TEXTURE_BINDING_2D 0x8069
#define GL_TEXTURE_INTERNAL_FORMAT 0x1003
#define GL_TEXTURE_RED_SIZE 0x805C
#define GL_TEXTURE_GREEN_SIZE 0x805D
#define GL_TEXTURE_BLUE_SIZE 0x805E
#define GL_TEXTURE_ALPHA_SIZE 0x805F
#define GL_DOUBLE 0x140A
#define GL_PROXY_TEXTURE_1D 0x8063
#define GL_PROXY_TEXTURE_2D 0x8064
#define GL_R3_G3_B2 0x2A10
#define GL_RGB4 0x804F
#define GL_RGB5 0x8050
#define GL_RGB8 0x8051
#define GL_RGB10 0x8052
#define GL_RGB12 0x8053
#define GL_RGB16 0x8054
#define GL_RGBA2 0x8055
#define GL_RGBA4 0x8056
#define GL_RGB5_A1 0x8057
#define GL_RGBA8 0x8058
#define GL_RGB10_A2 0x8059
#define GL_RGBA12 0x805A
#define GL_RGBA16 0x805B
#define GL_VERTEX_ARRAY 0x8074
typedef void (*PFNGLDRAWELEMENTSPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices);
typedef void (*PFNGLBINDTEXTUREPROC)(GLenum target, GLuint texture);
typedef void (*PFNGLDELETETEXTURESPROC)(GLsizei n, const GLuint *textures);
typedef void (*PFNGLGENTEXTURESPROC)(GLsizei n, GLuint *textures);
//typedef void (*PFNGLDRAWARRAYSPROC)(GLenum mode, GLint first, GLsizei count);
//typedef void (*PFNGLGETPOINTERVPROC)(GLenum pname, void **params);
//typedef void (*PFNGLPOLYGONOFFSETPROC)(GLfloat factor, GLfloat units);
//typedef void (*PFNGLCOPYTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLint border);
//typedef void (*PFNGLCOPYTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
//typedef void (*PFNGLCOPYTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLint x, GLint y, GLsizei width);
//typedef void (*PFNGLCOPYTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width, GLsizei height);
//typedef void (*PFNGLTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLenum type, const void *pixels);
//typedef void (*PFNGLTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void *pixels);
//typedef GLboolean (*PFNGLISTEXTUREPROC)(GLuint texture);
#endif /* GL_VERSION_1_1 */
#ifndef GL_VERSION_1_2
#define GL_VERSION_1_2 1
#define GL_UNSIGNED_BYTE_3_3_2 0x8032
#define GL_UNSIGNED_SHORT_4_4_4_4 0x8033
#define GL_UNSIGNED_SHORT_5_5_5_1 0x8034
#define GL_UNSIGNED_INT_8_8_8_8 0x8035
#define GL_UNSIGNED_INT_10_10_10_2 0x8036
#define GL_TEXTURE_BINDING_3D 0x806A
#define GL_PACK_SKIP_IMAGES 0x806B
#define GL_PACK_IMAGE_HEIGHT 0x806C
#define GL_UNPACK_SKIP_IMAGES 0x806D
#define GL_UNPACK_IMAGE_HEIGHT 0x806E
#define GL_TEXTURE_3D 0x806F
#define GL_PROXY_TEXTURE_3D 0x8070
#define GL_TEXTURE_DEPTH 0x8071
#define GL_TEXTURE_WRAP_R 0x8072
#define GL_MAX_3D_TEXTURE_SIZE 0x8073
#define GL_UNSIGNED_BYTE_2_3_3_REV 0x8362
#define GL_UNSIGNED_SHORT_5_6_5 0x8363
#define GL_UNSIGNED_SHORT_5_6_5_REV 0x8364
#define GL_UNSIGNED_SHORT_4_4_4_4_REV 0x8365
#define GL_UNSIGNED_SHORT_1_5_5_5_REV 0x8366
#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368
#define GL_BGR 0x80E0
#define GL_BGRA 0x80E1
#define GL_MAX_ELEMENTS_VERTICES 0x80E8
#define GL_MAX_ELEMENTS_INDICES 0x80E9
#define GL_CLAMP_TO_EDGE 0x812F
#define GL_TEXTURE_MIN_LOD 0x813A
#define GL_TEXTURE_MAX_LOD 0x813B
#define GL_TEXTURE_BASE_LEVEL 0x813C
#define GL_TEXTURE_MAX_LEVEL 0x813D
#define GL_SMOOTH_POINT_SIZE_RANGE 0x0B12
#define GL_SMOOTH_POINT_SIZE_GRANULARITY 0x0B13
#define GL_SMOOTH_LINE_WIDTH_RANGE 0x0B22
#define GL_SMOOTH_LINE_WIDTH_GRANULARITY 0x0B23
#define GL_ALIASED_LINE_WIDTH_RANGE 0x846E
//typedef void (*PFNGLDRAWRANGEELEMENTSPROC)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void *indices);
//typedef void (*PFNGLTEXIMAGE3DPROC)(GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLenum format, GLenum type, const void *pixels);
//typedef void (*PFNGLTEXSUBIMAGE3DPROC)(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 (*PFNGLCOPYTEXSUBIMAGE3DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint zoffset, GLint x, GLint y, GLsizei width, GLsizei height);
#endif /* GL_VERSION_1_2 */
#ifndef GL_VERSION_1_3
#define GL_VERSION_1_3 1
#define GL_TEXTURE0 0x84C0
#define GL_TEXTURE1 0x84C1
#define GL_TEXTURE2 0x84C2
#define GL_TEXTURE3 0x84C3
#define GL_TEXTURE4 0x84C4
#define GL_TEXTURE5 0x84C5
#define GL_TEXTURE6 0x84C6
#define GL_TEXTURE7 0x84C7
#define GL_TEXTURE8 0x84C8
#define GL_TEXTURE9 0x84C9
#define GL_TEXTURE10 0x84CA
#define GL_TEXTURE11 0x84CB
#define GL_TEXTURE12 0x84CC
#define GL_TEXTURE13 0x84CD
#define GL_TEXTURE14 0x84CE
#define GL_TEXTURE15 0x84CF
#define GL_TEXTURE16 0x84D0
#define GL_TEXTURE17 0x84D1
#define GL_TEXTURE18 0x84D2
#define GL_TEXTURE19 0x84D3
#define GL_TEXTURE20 0x84D4
#define GL_TEXTURE21 0x84D5
#define GL_TEXTURE22 0x84D6
#define GL_TEXTURE23 0x84D7
#define GL_TEXTURE24 0x84D8
#define GL_TEXTURE25 0x84D9
#define GL_TEXTURE26 0x84DA
#define GL_TEXTURE27 0x84DB
#define GL_TEXTURE28 0x84DC
#define GL_TEXTURE29 0x84DD
#define GL_TEXTURE30 0x84DE
#define GL_TEXTURE31 0x84DF
#define GL_ACTIVE_TEXTURE 0x84E0
#define GL_MULTISAMPLE 0x809D
#define GL_SAMPLE_ALPHA_TO_COVERAGE 0x809E
#define GL_SAMPLE_ALPHA_TO_ONE 0x809F
#define GL_SAMPLE_COVERAGE 0x80A0
#define GL_SAMPLE_BUFFERS 0x80A8
#define GL_SAMPLES 0x80A9
#define GL_SAMPLE_COVERAGE_VALUE 0x80AA
#define GL_SAMPLE_COVERAGE_INVERT 0x80AB
#define GL_TEXTURE_CUBE_MAP 0x8513
#define GL_TEXTURE_BINDING_CUBE_MAP 0x8514
#define GL_TEXTURE_CUBE_MAP_POSITIVE_X 0x8515
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_X 0x8516
#define GL_TEXTURE_CUBE_MAP_POSITIVE_Y 0x8517
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Y 0x8518
#define GL_TEXTURE_CUBE_MAP_POSITIVE_Z 0x8519
#define GL_TEXTURE_CUBE_MAP_NEGATIVE_Z 0x851A
#define GL_PROXY_TEXTURE_CUBE_MAP 0x851B
#define GL_MAX_CUBE_MAP_TEXTURE_SIZE 0x851C
#define GL_COMPRESSED_RGB 0x84ED
#define GL_COMPRESSED_RGBA 0x84EE
#define GL_TEXTURE_COMPRESSION_HINT 0x84EF
#define GL_TEXTURE_COMPRESSED_IMAGE_SIZE 0x86A0
#define GL_TEXTURE_COMPRESSED 0x86A1
#define GL_NUM_COMPRESSED_TEXTURE_FORMATS 0x86A2
#define GL_COMPRESSED_TEXTURE_FORMATS 0x86A3
#define GL_CLAMP_TO_BORDER 0x812D
typedef void (*PFNGLACTIVETEXTUREPROC)(GLenum texture);
//typedef void (*PFNGLSAMPLECOVERAGEPROC)(GLfloat value, GLboolean invert);
//typedef void (*PFNGLCOMPRESSEDTEXIMAGE3DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLsizei depth, GLint border, GLsizei imageSize, const void *data);
//typedef void (*PFNGLCOMPRESSEDTEXIMAGE2DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const void *data);
//typedef void (*PFNGLCOMPRESSEDTEXIMAGE1DPROC)(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLint border, GLsizei imageSize, const void *data);
//typedef void (*PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC)(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 (*PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const void *data);
//typedef void (*PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC)(GLenum target, GLint level, GLint xoffset, GLsizei width, GLenum format, GLsizei imageSize, const void *data);
//typedef void (*PFNGLGETCOMPRESSEDTEXIMAGEPROC)(GLenum target, GLint level, void *img);
#endif /* GL_VERSION_1_3 */
#ifndef GL_VERSION_1_4
#define GL_VERSION_1_4 1
#define GL_BLEND_DST_RGB 0x80C8
#define GL_BLEND_SRC_RGB 0x80C9
#define GL_BLEND_DST_ALPHA 0x80CA
#define GL_BLEND_SRC_ALPHA 0x80CB
#define GL_POINT_FADE_THRESHOLD_SIZE 0x8128
#define GL_DEPTH_COMPONENT16 0x81A5
#define GL_DEPTH_COMPONENT24 0x81A6
#define GL_DEPTH_COMPONENT32 0x81A7
#define GL_MIRRORED_REPEAT 0x8370
#define GL_MAX_TEXTURE_LOD_BIAS 0x84FD
#define GL_TEXTURE_LOD_BIAS 0x8501
#define GL_INCR_WRAP 0x8507
#define GL_DECR_WRAP 0x8508
#define GL_TEXTURE_DEPTH_SIZE 0x884A
#define GL_TEXTURE_COMPARE_MODE 0x884C
#define GL_TEXTURE_COMPARE_FUNC 0x884D
#define GL_BLEND_COLOR 0x8005
#define GL_BLEND_EQUATION 0x8009
#define GL_CONSTANT_COLOR 0x8001
#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
#define GL_CONSTANT_ALPHA 0x8003
#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
#define GL_FUNC_ADD 0x8006
#define GL_FUNC_REVERSE_SUBTRACT 0x800B
#define GL_FUNC_SUBTRACT 0x800A
#define GL_MIN 0x8007
#define GL_MAX 0x8008
typedef void (*PFNGLBLENDEQUATIONPROC)(GLenum mode);
//typedef void (*PFNGLBLENDFUNCSEPARATEPROC)(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha);
//typedef void (*PFNGLMULTIDRAWARRAYSPROC)(GLenum mode, const GLint *first, const GLsizei *count, GLsizei drawcount);
//typedef void (*PFNGLMULTIDRAWELEMENTSPROC)(GLenum mode, const GLsizei *count, GLenum type, const void *const*indices, GLsizei drawcount);
//typedef void (*PFNGLPOINTPARAMETERFPROC)(GLenum pname, GLfloat param);
//typedef void (*PFNGLPOINTPARAMETERFVPROC)(GLenum pname, const GLfloat *params);
//typedef void (*PFNGLPOINTPARAMETERIPROC)(GLenum pname, GLint param);
//typedef void (*PFNGLPOINTPARAMETERIVPROC)(GLenum pname, const GLint *params);
//typedef void (*PFNGLBLENDCOLORPROC)(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
#endif /* GL_VERSION_1_4 */
#ifndef GL_VERSION_1_5
#define GL_VERSION_1_5 1
typedef khronos_ssize_t GLsizeiptr;
typedef khronos_intptr_t GLintptr;
#define GL_BUFFER_SIZE 0x8764
#define GL_BUFFER_USAGE 0x8765
#define GL_QUERY_COUNTER_BITS 0x8864
#define GL_CURRENT_QUERY 0x8865
#define GL_QUERY_RESULT 0x8866
#define GL_QUERY_RESULT_AVAILABLE 0x8867
#define GL_ARRAY_BUFFER 0x8892
#define GL_ELEMENT_ARRAY_BUFFER 0x8893
#define GL_ARRAY_BUFFER_BINDING 0x8894
#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895
#define GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING 0x889F
#define GL_READ_ONLY 0x88B8
#define GL_WRITE_ONLY 0x88B9
#define GL_READ_WRITE 0x88BA
#define GL_BUFFER_ACCESS 0x88BB
#define GL_BUFFER_MAPPED 0x88BC
#define GL_BUFFER_MAP_POINTER 0x88BD
#define GL_STREAM_DRAW 0x88E0
#define GL_STREAM_READ 0x88E1
#define GL_STREAM_COPY 0x88E2
#define GL_STATIC_DRAW 0x88E4
#define GL_STATIC_READ 0x88E5
#define GL_STATIC_COPY 0x88E6
#define GL_DYNAMIC_DRAW 0x88E8
#define GL_DYNAMIC_READ 0x88E9
#define GL_DYNAMIC_COPY 0x88EA
#define GL_SAMPLES_PASSED 0x8914
#define GL_SRC1_ALPHA 0x8589
typedef void (*PFNGLBINDBUFFERPROC)(GLenum target, GLuint buffer);
typedef void (*PFNGLDELETEBUFFERSPROC)(GLsizei n, const GLuint *buffers);
typedef void (*PFNGLGENBUFFERSPROC)(GLsizei n, GLuint *buffers);
typedef void (*PFNGLBUFFERDATAPROC)(GLenum target, GLsizeiptr size, const void *data, GLenum usage);
//typedef void (*PFNGLGENQUERIESPROC)(GLsizei n, GLuint *ids);
//typedef void (*PFNGLDELETEQUERIESPROC)(GLsizei n, const GLuint *ids);
//typedef GLboolean (*PFNGLISQUERYPROC)(GLuint id);
//typedef void (*PFNGLBEGINQUERYPROC)(GLenum target, GLuint id);
//typedef void (*PFNGLENDQUERYPROC)(GLenum target);
//typedef void (*PFNGLGETQUERYIVPROC)(GLenum target, GLenum pname, GLint *params);
//typedef void (*PFNGLGETQUERYOBJECTIVPROC)(GLuint id, GLenum pname, GLint *params);
//typedef void (*PFNGLGETQUERYOBJECTUIVPROC)(GLuint id, GLenum pname, GLuint *params);
//typedef GLboolean (*PFNGLISBUFFERPROC)(GLuint buffer);
//typedef void (*PFNGLBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, const void *data);
//typedef void (*PFNGLGETBUFFERSUBDATAPROC)(GLenum target, GLintptr offset, GLsizeiptr size, void *data);
//typedef void *(*PFNGLMAPBUFFERPROC)(GLenum target, GLenum access);
//typedef GLboolean (*PFNGLUNMAPBUFFERPROC)(GLenum target);
//typedef void (*PFNGLGETBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
//typedef void (*PFNGLGETBUFFERPOINTERVPROC)(GLenum target, GLenum pname, void **params);
#endif /* GL_VERSION_1_5 */
#ifndef GL_VERSION_2_0
#define GL_VERSION_2_0 1
typedef char GLchar;
typedef khronos_int16_t GLshort;
typedef khronos_int8_t GLbyte;
typedef khronos_uint16_t GLushort;
#define GL_BLEND_EQUATION_RGB 0x8009
#define GL_VERTEX_ATTRIB_ARRAY_ENABLED 0x8622
#define GL_VERTEX_ATTRIB_ARRAY_SIZE 0x8623
#define GL_VERTEX_ATTRIB_ARRAY_STRIDE 0x8624
#define GL_VERTEX_ATTRIB_ARRAY_TYPE 0x8625
#define GL_CURRENT_VERTEX_ATTRIB 0x8626
#define GL_VERTEX_PROGRAM_POINT_SIZE 0x8642
#define GL_VERTEX_ATTRIB_ARRAY_POINTER 0x8645
#define GL_STENCIL_BACK_FUNC 0x8800
#define GL_STENCIL_BACK_FAIL 0x8801
#define GL_STENCIL_BACK_PASS_DEPTH_FAIL 0x8802
#define GL_STENCIL_BACK_PASS_DEPTH_PASS 0x8803
#define GL_MAX_DRAW_BUFFERS 0x8824
#define GL_DRAW_BUFFER0 0x8825
#define GL_DRAW_BUFFER1 0x8826
#define GL_DRAW_BUFFER2 0x8827
#define GL_DRAW_BUFFER3 0x8828
#define GL_DRAW_BUFFER4 0x8829
#define GL_DRAW_BUFFER5 0x882A
#define GL_DRAW_BUFFER6 0x882B
#define GL_DRAW_BUFFER7 0x882C
#define GL_DRAW_BUFFER8 0x882D
#define GL_DRAW_BUFFER9 0x882E
#define GL_DRAW_BUFFER10 0x882F
#define GL_DRAW_BUFFER11 0x8830
#define GL_DRAW_BUFFER12 0x8831
#define GL_DRAW_BUFFER13 0x8832
#define GL_DRAW_BUFFER14 0x8833
#define GL_DRAW_BUFFER15 0x8834
#define GL_BLEND_EQUATION_ALPHA 0x883D
#define GL_MAX_VERTEX_ATTRIBS 0x8869
#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
#define GL_MAX_TEXTURE_IMAGE_UNITS 0x8872
#define GL_FRAGMENT_SHADER 0x8B30
#define GL_VERTEX_SHADER 0x8B31
#define GL_MAX_FRAGMENT_UNIFORM_COMPONENTS 0x8B49
#define GL_MAX_VERTEX_UNIFORM_COMPONENTS 0x8B4A
#define GL_MAX_VARYING_FLOATS 0x8B4B
#define GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0x8B4C
#define GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 0x8B4D
#define GL_SHADER_TYPE 0x8B4F
#define GL_FLOAT_VEC2 0x8B50
#define GL_FLOAT_VEC3 0x8B51
#define GL_FLOAT_VEC4 0x8B52
#define GL_INT_VEC2 0x8B53
#define GL_INT_VEC3 0x8B54
#define GL_INT_VEC4 0x8B55
#define GL_BOOL 0x8B56
#define GL_BOOL_VEC2 0x8B57
#define GL_BOOL_VEC3 0x8B58
#define GL_BOOL_VEC4 0x8B59
#define GL_FLOAT_MAT2 0x8B5A
#define GL_FLOAT_MAT3 0x8B5B
#define GL_FLOAT_MAT4 0x8B5C
#define GL_SAMPLER_1D 0x8B5D
#define GL_SAMPLER_2D 0x8B5E
#define GL_SAMPLER_3D 0x8B5F
#define GL_SAMPLER_CUBE 0x8B60
#define GL_SAMPLER_1D_SHADOW 0x8B61
#define GL_SAMPLER_2D_SHADOW 0x8B62
#define GL_DELETE_STATUS 0x8B80
#define GL_COMPILE_STATUS 0x8B81
#define GL_LINK_STATUS 0x8B82
#define GL_VALIDATE_STATUS 0x8B83
#define GL_INFO_LOG_LENGTH 0x8B84
#define GL_ATTACHED_SHADERS 0x8B85
#define GL_ACTIVE_UNIFORMS 0x8B86
#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87
#define GL_SHADER_SOURCE_LENGTH 0x8B88
#define GL_ACTIVE_ATTRIBUTES 0x8B89
#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A
#define GL_FRAGMENT_SHADER_DERIVATIVE_HINT 0x8B8B
#define GL_SHADING_LANGUAGE_VERSION 0x8B8C
#define GL_CURRENT_PROGRAM 0x8B8D
#define GL_POINT_SPRITE_COORD_ORIGIN 0x8CA0
#define GL_LOWER_LEFT 0x8CA1
#define GL_UPPER_LEFT 0x8CA2
#define GL_STENCIL_BACK_REF 0x8CA3
#define GL_STENCIL_BACK_VALUE_MASK 0x8CA4
#define GL_STENCIL_BACK_WRITEMASK 0x8CA5
typedef void (*PFNGLDRAWBUFFERSPROC)(GLsizei n, const GLenum *bufs);
typedef void (*PFNGLSTENCILOPSEPARATEPROC)(GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
typedef void (*PFNGLSTENCILFUNCSEPARATEPROC)(GLenum face, GLenum func, GLint ref, GLuint mask);
typedef void (*PFNGLATTACHSHADERPROC)(GLuint program, GLuint shader);
typedef void (*PFNGLCOMPILESHADERPROC)(GLuint shader);
typedef GLuint (*PFNGLCREATEPROGRAMPROC)(void);
typedef GLuint (*PFNGLCREATESHADERPROC)(GLenum type);
typedef void (*PFNGLDELETEPROGRAMPROC)(GLuint program);
typedef void (*PFNGLDELETESHADERPROC)(GLuint shader);
typedef void (*PFNGLDISABLEVERTEXATTRIBARRAYPROC)(GLuint index);
typedef void (*PFNGLENABLEVERTEXATTRIBARRAYPROC)(GLuint index);
typedef GLint (*PFNGLGETATTRIBLOCATIONPROC)(GLuint program, const GLchar *name);
typedef void (*PFNGLGETPROGRAMIVPROC)(GLuint program, GLenum pname, GLint *params);
typedef void (*PFNGLGETPROGRAMINFOLOGPROC)(GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef void (*PFNGLGETSHADERIVPROC)(GLuint shader, GLenum pname, GLint *params);
typedef void (*PFNGLGETSHADERINFOLOGPROC)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
typedef GLint (*PFNGLGETUNIFORMLOCATIONPROC)(GLuint program, const GLchar *name);
typedef void (*PFNGLLINKPROGRAMPROC)(GLuint program);
typedef void (*PFNGLSHADERSOURCEPROC)(GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
typedef void (*PFNGLUSEPROGRAMPROC)(GLuint program);
typedef void (*PFNGLUNIFORM1FPROC)(GLint location, GLfloat v0);
typedef void (*PFNGLUNIFORM1FVPROC)(GLint location, GLsizei count, const GLfloat *value);
typedef void (*PFNGLUNIFORM2FVPROC)(GLint location, GLsizei count, const GLfloat *value);
typedef void (*PFNGLUNIFORM3FVPROC)(GLint location, GLsizei count, const GLfloat *value);
typedef void (*PFNGLUNIFORM4FVPROC)(GLint location, GLsizei count, const GLfloat *value);
typedef void (*PFNGLUNIFORM1IVPROC)(GLint location, GLsizei count, const GLint *value);
typedef void (*PFNGLUNIFORM2IVPROC)(GLint location, GLsizei count, const GLint *value);
typedef void (*PFNGLUNIFORM3IVPROC)(GLint location, GLsizei count, const GLint *value);
typedef void (*PFNGLUNIFORM4IVPROC)(GLint location, GLsizei count, const GLint *value);
typedef void (*PFNGLUNIFORMMATRIX4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
typedef void (*PFNGLVERTEXATTRIBPOINTERPROC)(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer);
//typedef void (*PFNGLBLENDEQUATIONSEPARATEPROC)(GLenum modeRGB, GLenum modeAlpha);
//typedef void (*PFNGLSTENCILMASKSEPARATEPROC)(GLenum face, GLuint mask);
//typedef void (*PFNGLBINDATTRIBLOCATIONPROC)(GLuint program, GLuint index, const GLchar *name);
//typedef void (*PFNGLDETACHSHADERPROC)(GLuint program, GLuint shader);
//typedef void (*PFNGLGETACTIVEATTRIBPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
//typedef void (*PFNGLGETACTIVEUNIFORMPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLint *size, GLenum *type, GLchar *name);
//typedef void (*PFNGLGETATTACHEDSHADERSPROC)(GLuint program, GLsizei maxCount, GLsizei *count, GLuint *shaders);
//typedef void (*PFNGLGETSHADERSOURCEPROC)(GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *source);
//typedef void (*PFNGLGETUNIFORMFVPROC)(GLuint program, GLint location, GLfloat *params);
//typedef void (*PFNGLGETUNIFORMIVPROC)(GLuint program, GLint location, GLint *params);
//typedef void (*PFNGLGETVERTEXATTRIBDVPROC)(GLuint index, GLenum pname, GLdouble *params);
//typedef void (*PFNGLGETVERTEXATTRIBFVPROC)(GLuint index, GLenum pname, GLfloat *params);
//typedef void (*PFNGLGETVERTEXATTRIBIVPROC)(GLuint index, GLenum pname, GLint *params);
//typedef void (*PFNGLGETVERTEXATTRIBPOINTERVPROC)(GLuint index, GLenum pname, void **pointer);
//typedef GLboolean (*PFNGLISPROGRAMPROC)(GLuint program);
//typedef GLboolean (*PFNGLISSHADERPROC)(GLuint shader);
//typedef void (*PFNGLUNIFORM2FPROC)(GLint location, GLfloat v0, GLfloat v1);
//typedef void (*PFNGLUNIFORM3FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
//typedef void (*PFNGLUNIFORM4FPROC)(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
//typedef void (*PFNGLUNIFORM1IPROC)(GLint location, GLint v0);
//typedef void (*PFNGLUNIFORM2IPROC)(GLint location, GLint v0, GLint v1);
//typedef void (*PFNGLUNIFORM3IPROC)(GLint location, GLint v0, GLint v1, GLint v2);
//typedef void (*PFNGLUNIFORM4IPROC)(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
//typedef void (*PFNGLUNIFORMMATRIX2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLVALIDATEPROGRAMPROC)(GLuint program);
//typedef void (*PFNGLVERTEXATTRIB1DPROC)(GLuint index, GLdouble x);
//typedef void (*PFNGLVERTEXATTRIB1DVPROC)(GLuint index, const GLdouble *v);
//typedef void (*PFNGLVERTEXATTRIB1FPROC)(GLuint index, GLfloat x);
//typedef void (*PFNGLVERTEXATTRIB1FVPROC)(GLuint index, const GLfloat *v);
//typedef void (*PFNGLVERTEXATTRIB1SPROC)(GLuint index, GLshort x);
//typedef void (*PFNGLVERTEXATTRIB1SVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIB2DPROC)(GLuint index, GLdouble x, GLdouble y);
//typedef void (*PFNGLVERTEXATTRIB2DVPROC)(GLuint index, const GLdouble *v);
//typedef void (*PFNGLVERTEXATTRIB2FPROC)(GLuint index, GLfloat x, GLfloat y);
//typedef void (*PFNGLVERTEXATTRIB2FVPROC)(GLuint index, const GLfloat *v);
//typedef void (*PFNGLVERTEXATTRIB2SPROC)(GLuint index, GLshort x, GLshort y);
//typedef void (*PFNGLVERTEXATTRIB2SVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIB3DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z);
//typedef void (*PFNGLVERTEXATTRIB3DVPROC)(GLuint index, const GLdouble *v);
//typedef void (*PFNGLVERTEXATTRIB3FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z);
//typedef void (*PFNGLVERTEXATTRIB3FVPROC)(GLuint index, const GLfloat *v);
//typedef void (*PFNGLVERTEXATTRIB3SPROC)(GLuint index, GLshort x, GLshort y, GLshort z);
//typedef void (*PFNGLVERTEXATTRIB3SVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIB4NBVPROC)(GLuint index, const GLbyte *v);
//typedef void (*PFNGLVERTEXATTRIB4NIVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIB4NSVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIB4NUBPROC)(GLuint index, GLubyte x, GLubyte y, GLubyte z, GLubyte w);
//typedef void (*PFNGLVERTEXATTRIB4NUBVPROC)(GLuint index, const GLubyte *v);
//typedef void (*PFNGLVERTEXATTRIB4NUIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIB4NUSVPROC)(GLuint index, const GLushort *v);
//typedef void (*PFNGLVERTEXATTRIB4BVPROC)(GLuint index, const GLbyte *v);
//typedef void (*PFNGLVERTEXATTRIB4DPROC)(GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w);
//typedef void (*PFNGLVERTEXATTRIB4DVPROC)(GLuint index, const GLdouble *v);
//typedef void (*PFNGLVERTEXATTRIB4FPROC)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
//typedef void (*PFNGLVERTEXATTRIB4FVPROC)(GLuint index, const GLfloat *v);
//typedef void (*PFNGLVERTEXATTRIB4IVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIB4SPROC)(GLuint index, GLshort x, GLshort y, GLshort z, GLshort w);
//typedef void (*PFNGLVERTEXATTRIB4SVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIB4UBVPROC)(GLuint index, const GLubyte *v);
//typedef void (*PFNGLVERTEXATTRIB4UIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIB4USVPROC)(GLuint index, const GLushort *v);
#endif /* GL_VERSION_2_0 */
#ifndef GL_VERSION_2_1
#define GL_VERSION_2_1 1
#define GL_PIXEL_PACK_BUFFER 0x88EB
#define GL_PIXEL_UNPACK_BUFFER 0x88EC
#define GL_PIXEL_PACK_BUFFER_BINDING 0x88ED
#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
#define GL_FLOAT_MAT2x3 0x8B65
#define GL_FLOAT_MAT2x4 0x8B66
#define GL_FLOAT_MAT3x2 0x8B67
#define GL_FLOAT_MAT3x4 0x8B68
#define GL_FLOAT_MAT4x2 0x8B69
#define GL_FLOAT_MAT4x3 0x8B6A
#define GL_SRGB 0x8C40
#define GL_SRGB8 0x8C41
#define GL_SRGB_ALPHA 0x8C42
#define GL_SRGB8_ALPHA8 0x8C43
#define GL_COMPRESSED_SRGB 0x8C48
#define GL_COMPRESSED_SRGB_ALPHA 0x8C49
//typedef void (*PFNGLUNIFORMMATRIX2X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX3X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX2X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX4X2FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX3X4FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
//typedef void (*PFNGLUNIFORMMATRIX4X3FVPROC)(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value);
#endif /* GL_VERSION_2_1 */
#ifndef GL_VERSION_3_0
#define GL_VERSION_3_0 1
typedef khronos_uint16_t GLhalf;
#define GL_COMPARE_REF_TO_TEXTURE 0x884E
#define GL_CLIP_DISTANCE0 0x3000
#define GL_CLIP_DISTANCE1 0x3001
#define GL_CLIP_DISTANCE2 0x3002
#define GL_CLIP_DISTANCE3 0x3003
#define GL_CLIP_DISTANCE4 0x3004
#define GL_CLIP_DISTANCE5 0x3005
#define GL_CLIP_DISTANCE6 0x3006
#define GL_CLIP_DISTANCE7 0x3007
#define GL_MAX_CLIP_DISTANCES 0x0D32
#define GL_MAJOR_VERSION 0x821B
#define GL_MINOR_VERSION 0x821C
#define GL_NUM_EXTENSIONS 0x821D
#define GL_CONTEXT_FLAGS 0x821E
#define GL_COMPRESSED_RED 0x8225
#define GL_COMPRESSED_RG 0x8226
#define GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT 0x00000001
#define GL_RGBA32F 0x8814
#define GL_RGB32F 0x8815
#define GL_RGBA16F 0x881A
#define GL_RGB16F 0x881B
#define GL_VERTEX_ATTRIB_ARRAY_INTEGER 0x88FD
#define GL_MAX_ARRAY_TEXTURE_LAYERS 0x88FF
#define GL_MIN_PROGRAM_TEXEL_OFFSET 0x8904
#define GL_MAX_PROGRAM_TEXEL_OFFSET 0x8905
#define GL_CLAMP_READ_COLOR 0x891C
#define GL_FIXED_ONLY 0x891D
#define GL_MAX_VARYING_COMPONENTS 0x8B4B
#define GL_TEXTURE_1D_ARRAY 0x8C18
#define GL_PROXY_TEXTURE_1D_ARRAY 0x8C19
#define GL_TEXTURE_2D_ARRAY 0x8C1A
#define GL_PROXY_TEXTURE_2D_ARRAY 0x8C1B
#define GL_TEXTURE_BINDING_1D_ARRAY 0x8C1C
#define GL_TEXTURE_BINDING_2D_ARRAY 0x8C1D
#define GL_R11F_G11F_B10F 0x8C3A
#define GL_UNSIGNED_INT_10F_11F_11F_REV 0x8C3B
#define GL_RGB9_E5 0x8C3D
#define GL_UNSIGNED_INT_5_9_9_9_REV 0x8C3E
#define GL_TEXTURE_SHARED_SIZE 0x8C3F
#define GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH 0x8C76
#define GL_TRANSFORM_FEEDBACK_BUFFER_MODE 0x8C7F
#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS 0x8C80
#define GL_TRANSFORM_FEEDBACK_VARYINGS 0x8C83
#define GL_TRANSFORM_FEEDBACK_BUFFER_START 0x8C84
#define GL_TRANSFORM_FEEDBACK_BUFFER_SIZE 0x8C85
#define GL_PRIMITIVES_GENERATED 0x8C87
#define GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN 0x8C88
#define GL_RASTERIZER_DISCARD 0x8C89
#define GL_MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS 0x8C8A
#define GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS 0x8C8B
#define GL_INTERLEAVED_ATTRIBS 0x8C8C
#define GL_SEPARATE_ATTRIBS 0x8C8D
#define GL_TRANSFORM_FEEDBACK_BUFFER 0x8C8E
#define GL_TRANSFORM_FEEDBACK_BUFFER_BINDING 0x8C8F
#define GL_RGBA32UI 0x8D70
#define GL_RGB32UI 0x8D71
#define GL_RGBA16UI 0x8D76
#define GL_RGB16UI 0x8D77
#define GL_RGBA8UI 0x8D7C
#define GL_RGB8UI 0x8D7D
#define GL_RGBA32I 0x8D82
#define GL_RGB32I 0x8D83
#define GL_RGBA16I 0x8D88
#define GL_RGB16I 0x8D89
#define GL_RGBA8I 0x8D8E
#define GL_RGB8I 0x8D8F
#define GL_RED_INTEGER 0x8D94
#define GL_GREEN_INTEGER 0x8D95
#define GL_BLUE_INTEGER 0x8D96
#define GL_RGB_INTEGER 0x8D98
#define GL_RGBA_INTEGER 0x8D99
#define GL_BGR_INTEGER 0x8D9A
#define GL_BGRA_INTEGER 0x8D9B
#define GL_SAMPLER_1D_ARRAY 0x8DC0
#define GL_SAMPLER_2D_ARRAY 0x8DC1
#define GL_SAMPLER_1D_ARRAY_SHADOW 0x8DC3
#define GL_SAMPLER_2D_ARRAY_SHADOW 0x8DC4
#define GL_SAMPLER_CUBE_SHADOW 0x8DC5
#define GL_UNSIGNED_INT_VEC2 0x8DC6
#define GL_UNSIGNED_INT_VEC3 0x8DC7
#define GL_UNSIGNED_INT_VEC4 0x8DC8
#define GL_INT_SAMPLER_1D 0x8DC9
#define GL_INT_SAMPLER_2D 0x8DCA
#define GL_INT_SAMPLER_3D 0x8DCB
#define GL_INT_SAMPLER_CUBE 0x8DCC
#define GL_INT_SAMPLER_1D_ARRAY 0x8DCE
#define GL_INT_SAMPLER_2D_ARRAY 0x8DCF
#define GL_UNSIGNED_INT_SAMPLER_1D 0x8DD1
#define GL_UNSIGNED_INT_SAMPLER_2D 0x8DD2
#define GL_UNSIGNED_INT_SAMPLER_3D 0x8DD3
#define GL_UNSIGNED_INT_SAMPLER_CUBE 0x8DD4
#define GL_UNSIGNED_INT_SAMPLER_1D_ARRAY 0x8DD6
#define GL_UNSIGNED_INT_SAMPLER_2D_ARRAY 0x8DD7
#define GL_QUERY_WAIT 0x8E13
#define GL_QUERY_NO_WAIT 0x8E14
#define GL_QUERY_BY_REGION_WAIT 0x8E15
#define GL_QUERY_BY_REGION_NO_WAIT 0x8E16
#define GL_BUFFER_ACCESS_FLAGS 0x911F
#define GL_BUFFER_MAP_LENGTH 0x9120
#define GL_BUFFER_MAP_OFFSET 0x9121
#define GL_DEPTH_COMPONENT32F 0x8CAC
#define GL_DEPTH32F_STENCIL8 0x8CAD
#define GL_FLOAT_32_UNSIGNED_INT_24_8_REV 0x8DAD
#define GL_INVALID_FRAMEBUFFER_OPERATION 0x0506
#define GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING 0x8210
#define GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE 0x8211
#define GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE 0x8212
#define GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE 0x8213
#define GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE 0x8214
#define GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE 0x8215
#define GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE 0x8216
#define GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE 0x8217
#define GL_FRAMEBUFFER_DEFAULT 0x8218
#define GL_FRAMEBUFFER_UNDEFINED 0x8219
#define GL_DEPTH_STENCIL_ATTACHMENT 0x821A
#define GL_MAX_RENDERBUFFER_SIZE 0x84E8
#define GL_DEPTH_STENCIL 0x84F9
#define GL_UNSIGNED_INT_24_8 0x84FA
#define GL_DEPTH24_STENCIL8 0x88F0
#define GL_TEXTURE_STENCIL_SIZE 0x88F1
#define GL_TEXTURE_RED_TYPE 0x8C10
#define GL_TEXTURE_GREEN_TYPE 0x8C11
#define GL_TEXTURE_BLUE_TYPE 0x8C12
#define GL_TEXTURE_ALPHA_TYPE 0x8C13
#define GL_TEXTURE_DEPTH_TYPE 0x8C16
#define GL_UNSIGNED_NORMALIZED 0x8C17
#define GL_FRAMEBUFFER_BINDING 0x8CA6
#define GL_DRAW_FRAMEBUFFER_BINDING 0x8CA6
#define GL_RENDERBUFFER_BINDING 0x8CA7
#define GL_READ_FRAMEBUFFER 0x8CA8
#define GL_DRAW_FRAMEBUFFER 0x8CA9
#define GL_READ_FRAMEBUFFER_BINDING 0x8CAA
#define GL_RENDERBUFFER_SAMPLES 0x8CAB
#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE 0x8CD0
#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME 0x8CD1
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL 0x8CD2
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE 0x8CD3
#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER 0x8CD4
#define GL_FRAMEBUFFER_COMPLETE 0x8CD5
#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT 0x8CD6
#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT 0x8CD7
#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER 0x8CDB
#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER 0x8CDC
#define GL_FRAMEBUFFER_UNSUPPORTED 0x8CDD
#define GL_MAX_COLOR_ATTACHMENTS 0x8CDF
#define GL_COLOR_ATTACHMENT0 0x8CE0
#define GL_COLOR_ATTACHMENT1 0x8CE1
#define GL_COLOR_ATTACHMENT2 0x8CE2
#define GL_COLOR_ATTACHMENT3 0x8CE3
#define GL_COLOR_ATTACHMENT4 0x8CE4
#define GL_COLOR_ATTACHMENT5 0x8CE5
#define GL_COLOR_ATTACHMENT6 0x8CE6
#define GL_COLOR_ATTACHMENT7 0x8CE7
#define GL_COLOR_ATTACHMENT8 0x8CE8
#define GL_COLOR_ATTACHMENT9 0x8CE9
#define GL_COLOR_ATTACHMENT10 0x8CEA
#define GL_COLOR_ATTACHMENT11 0x8CEB
#define GL_COLOR_ATTACHMENT12 0x8CEC
#define GL_COLOR_ATTACHMENT13 0x8CED
#define GL_COLOR_ATTACHMENT14 0x8CEE
#define GL_COLOR_ATTACHMENT15 0x8CEF
#define GL_COLOR_ATTACHMENT16 0x8CF0
#define GL_COLOR_ATTACHMENT17 0x8CF1
#define GL_COLOR_ATTACHMENT18 0x8CF2
#define GL_COLOR_ATTACHMENT19 0x8CF3
#define GL_COLOR_ATTACHMENT20 0x8CF4
#define GL_COLOR_ATTACHMENT21 0x8CF5
#define GL_COLOR_ATTACHMENT22 0x8CF6
#define GL_COLOR_ATTACHMENT23 0x8CF7
#define GL_COLOR_ATTACHMENT24 0x8CF8
#define GL_COLOR_ATTACHMENT25 0x8CF9
#define GL_COLOR_ATTACHMENT26 0x8CFA
#define GL_COLOR_ATTACHMENT27 0x8CFB
#define GL_COLOR_ATTACHMENT28 0x8CFC
#define GL_COLOR_ATTACHMENT29 0x8CFD
#define GL_COLOR_ATTACHMENT30 0x8CFE
#define GL_COLOR_ATTACHMENT31 0x8CFF
#define GL_DEPTH_ATTACHMENT 0x8D00
#define GL_STENCIL_ATTACHMENT 0x8D20
#define GL_FRAMEBUFFER 0x8D40
#define GL_RENDERBUFFER 0x8D41
#define GL_RENDERBUFFER_WIDTH 0x8D42
#define GL_RENDERBUFFER_HEIGHT 0x8D43
#define GL_RENDERBUFFER_INTERNAL_FORMAT 0x8D44
#define GL_STENCIL_INDEX1 0x8D46
#define GL_STENCIL_INDEX4 0x8D47
#define GL_STENCIL_INDEX8 0x8D48
#define GL_STENCIL_INDEX16 0x8D49
#define GL_RENDERBUFFER_RED_SIZE 0x8D50
#define GL_RENDERBUFFER_GREEN_SIZE 0x8D51
#define GL_RENDERBUFFER_BLUE_SIZE 0x8D52
#define GL_RENDERBUFFER_ALPHA_SIZE 0x8D53
#define GL_RENDERBUFFER_DEPTH_SIZE 0x8D54
#define GL_RENDERBUFFER_STENCIL_SIZE 0x8D55
#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE 0x8D56
#define GL_MAX_SAMPLES 0x8D57
#define GL_FRAMEBUFFER_SRGB 0x8DB9
#define GL_HALF_FLOAT 0x140B
#define GL_MAP_READ_BIT 0x0001
#define GL_MAP_WRITE_BIT 0x0002
#define GL_MAP_INVALIDATE_RANGE_BIT 0x0004
#define GL_MAP_INVALIDATE_BUFFER_BIT 0x0008
#define GL_MAP_FLUSH_EXPLICIT_BIT 0x0010
#define GL_MAP_UNSYNCHRONIZED_BIT 0x0020
#define GL_COMPRESSED_RED_RGTC1 0x8DBB
#define GL_COMPRESSED_SIGNED_RED_RGTC1 0x8DBC
#define GL_COMPRESSED_RG_RGTC2 0x8DBD
#define GL_COMPRESSED_SIGNED_RG_RGTC2 0x8DBE
#define GL_RG 0x8227
#define GL_RG_INTEGER 0x8228
#define GL_R8 0x8229
#define GL_R16 0x822A
#define GL_RG8 0x822B
#define GL_RG16 0x822C
#define GL_R16F 0x822D
#define GL_R32F 0x822E
#define GL_RG16F 0x822F
#define GL_RG32F 0x8230
#define GL_R8I 0x8231
#define GL_R8UI 0x8232
#define GL_R16I 0x8233
#define GL_R16UI 0x8234
#define GL_R32I 0x8235
#define GL_R32UI 0x8236
#define GL_RG8I 0x8237
#define GL_RG8UI 0x8238
#define GL_RG16I 0x8239
#define GL_RG16UI 0x823A
#define GL_RG32I 0x823B
#define GL_RG32UI 0x823C
#define GL_VERTEX_ARRAY_BINDING 0x85B5
typedef void (*PFNGLBINDBUFFERRANGEPROC)(GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size);
typedef void (*PFNGLBINDRENDERBUFFERPROC)(GLenum target, GLuint renderbuffer);
typedef void (*PFNGLDELETERENDERBUFFERSPROC)(GLsizei n, const GLuint *renderbuffers);
typedef void (*PFNGLGENRENDERBUFFERSPROC)(GLsizei n, GLuint *renderbuffers);
typedef void (*PFNGLINVALIDATEFRAMEBUFFERPROC)(GLenum target, GLsizei numAttachments, const GLenum *attachments); // GLES
typedef void (*PFNGLBINDFRAMEBUFFERPROC)(GLenum target, GLuint framebuffer);
typedef void (*PFNGLDELETEFRAMEBUFFERSPROC)(GLsizei n, const GLuint *framebuffers);
typedef void (*PFNGLGENFRAMEBUFFERSPROC)(GLsizei n, GLuint *framebuffers);
typedef void (*PFNGLFRAMEBUFFERTEXTURE2DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef void (*PFNGLFRAMEBUFFERRENDERBUFFERPROC)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
typedef void (*PFNGLBLITFRAMEBUFFERPROC)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
typedef void (*PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC)(GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
typedef void (*PFNGLBINDVERTEXARRAYPROC)(GLuint array);
typedef void (*PFNGLDELETEVERTEXARRAYSPROC)(GLsizei n, const GLuint *arrays);
typedef void (*PFNGLGENVERTEXARRAYSPROC)(GLsizei n, GLuint *arrays);
//typedef void (*PFNGLCOLORMASKIPROC)(GLuint index, GLboolean r, GLboolean g, GLboolean b, GLboolean a);
//typedef void (*PFNGLGETBOOLEANI_VPROC)(GLenum target, GLuint index, GLboolean *data);
//typedef void (*PFNGLGETINTEGERI_VPROC)(GLenum target, GLuint index, GLint *data);
//typedef void (*PFNGLENABLEIPROC)(GLenum target, GLuint index);
//typedef void (*PFNGLDISABLEIPROC)(GLenum target, GLuint index);
//typedef GLboolean (*PFNGLISENABLEDIPROC)(GLenum target, GLuint index);
//typedef void (*PFNGLBEGINTRANSFORMFEEDBACKPROC)(GLenum primitiveMode);
//typedef void (*PFNGLENDTRANSFORMFEEDBACKPROC)(void);
//typedef void (*PFNGLBINDBUFFERBASEPROC)(GLenum target, GLuint index, GLuint buffer);
//typedef void (*PFNGLTRANSFORMFEEDBACKVARYINGSPROC)(GLuint program, GLsizei count, const GLchar *const*varyings, GLenum bufferMode);
//typedef void (*PFNGLGETTRANSFORMFEEDBACKVARYINGPROC)(GLuint program, GLuint index, GLsizei bufSize, GLsizei *length, GLsizei *size, GLenum *type, GLchar *name);
//typedef void (*PFNGLCLAMPCOLORPROC)(GLenum target, GLenum clamp);
//typedef void (*PFNGLBEGINCONDITIONALRENDERPROC)(GLuint id, GLenum mode);
//typedef void (*PFNGLENDCONDITIONALRENDERPROC)(void);
//typedef void (*PFNGLVERTEXATTRIBIPOINTERPROC)(GLuint index, GLint size, GLenum type, GLsizei stride, const void *pointer);
//typedef void (*PFNGLGETVERTEXATTRIBIIVPROC)(GLuint index, GLenum pname, GLint *params);
//typedef void (*PFNGLGETVERTEXATTRIBIUIVPROC)(GLuint index, GLenum pname, GLuint *params);
//typedef void (*PFNGLVERTEXATTRIBI1IPROC)(GLuint index, GLint x);
//typedef void (*PFNGLVERTEXATTRIBI2IPROC)(GLuint index, GLint x, GLint y);
//typedef void (*PFNGLVERTEXATTRIBI3IPROC)(GLuint index, GLint x, GLint y, GLint z);
//typedef void (*PFNGLVERTEXATTRIBI4IPROC)(GLuint index, GLint x, GLint y, GLint z, GLint w);
//typedef void (*PFNGLVERTEXATTRIBI1UIPROC)(GLuint index, GLuint x);
//typedef void (*PFNGLVERTEXATTRIBI2UIPROC)(GLuint index, GLuint x, GLuint y);
//typedef void (*PFNGLVERTEXATTRIBI3UIPROC)(GLuint index, GLuint x, GLuint y, GLuint z);
//typedef void (*PFNGLVERTEXATTRIBI4UIPROC)(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w);
//typedef void (*PFNGLVERTEXATTRIBI1IVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIBI2IVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIBI3IVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIBI4IVPROC)(GLuint index, const GLint *v);
//typedef void (*PFNGLVERTEXATTRIBI1UIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIBI2UIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIBI3UIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIBI4UIVPROC)(GLuint index, const GLuint *v);
//typedef void (*PFNGLVERTEXATTRIBI4BVPROC)(GLuint index, const GLbyte *v);
//typedef void (*PFNGLVERTEXATTRIBI4SVPROC)(GLuint index, const GLshort *v);
//typedef void (*PFNGLVERTEXATTRIBI4UBVPROC)(GLuint index, const GLubyte *v);
//typedef void (*PFNGLVERTEXATTRIBI4USVPROC)(GLuint index, const GLushort *v);
//typedef void (*PFNGLGETUNIFORMUIVPROC)(GLuint program, GLint location, GLuint *params);
//typedef void (*PFNGLBINDFRAGDATALOCATIONPROC)(GLuint program, GLuint color, const GLchar *name);
//typedef GLint (*PFNGLGETFRAGDATALOCATIONPROC)(GLuint program, const GLchar *name);
//typedef void (*PFNGLUNIFORM1UIPROC)(GLint location, GLuint v0);
//typedef void (*PFNGLUNIFORM2UIPROC)(GLint location, GLuint v0, GLuint v1);
//typedef void (*PFNGLUNIFORM3UIPROC)(GLint location, GLuint v0, GLuint v1, GLuint v2);
//typedef void (*PFNGLUNIFORM4UIPROC)(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
//typedef void (*PFNGLUNIFORM1UIVPROC)(GLint location, GLsizei count, const GLuint *value);
//typedef void (*PFNGLUNIFORM2UIVPROC)(GLint location, GLsizei count, const GLuint *value);
//typedef void (*PFNGLUNIFORM3UIVPROC)(GLint location, GLsizei count, const GLuint *value);
//typedef void (*PFNGLUNIFORM4UIVPROC)(GLint location, GLsizei count, const GLuint *value);
//typedef void (*PFNGLTEXPARAMETERIIVPROC)(GLenum target, GLenum pname, const GLint *params);
//typedef void (*PFNGLTEXPARAMETERIUIVPROC)(GLenum target, GLenum pname, const GLuint *params);
//typedef void (*PFNGLGETTEXPARAMETERIIVPROC)(GLenum target, GLenum pname, GLint *params);
//typedef void (*PFNGLGETTEXPARAMETERIUIVPROC)(GLenum target, GLenum pname, GLuint *params);
//typedef void (*PFNGLCLEARBUFFERIVPROC)(GLenum buffer, GLint drawbuffer, const GLint *value);
//typedef void (*PFNGLCLEARBUFFERUIVPROC)(GLenum buffer, GLint drawbuffer, const GLuint *value);
//typedef void (*PFNGLCLEARBUFFERFVPROC)(GLenum buffer, GLint drawbuffer, const GLfloat *value);
//typedef void (*PFNGLCLEARBUFFERFIPROC)(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
//typedef const GLubyte *(*PFNGLGETSTRINGIPROC)(GLenum name, GLuint index);
//typedef GLboolean (*PFNGLISRENDERBUFFERPROC)(GLuint renderbuffer);
//typedef void (*PFNGLRENDERBUFFERSTORAGEPROC)(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
//typedef void (*PFNGLGETRENDERBUFFERPARAMETERIVPROC)(GLenum target, GLenum pname, GLint *params);
//typedef GLboolean (*PFNGLISFRAMEBUFFERPROC)(GLuint framebuffer);
//typedef GLenum (*PFNGLCHECKFRAMEBUFFERSTATUSPROC)(GLenum target);
//typedef void (*PFNGLFRAMEBUFFERTEXTURE1DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
//typedef void (*PFNGLFRAMEBUFFERTEXTURE3DPROC)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
//typedef void (*PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC)(GLenum target, GLenum attachment, GLenum pname, GLint *params);
//typedef void (*PFNGLGENERATEMIPMAPPROC)(GLenum target);
//typedef void (*PFNGLFRAMEBUFFERTEXTURELAYERPROC)(GLenum target, GLenum attachment, GLuint texture, GLint level, GLint layer);
//typedef void *(*PFNGLMAPBUFFERRANGEPROC)(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
//typedef void (*PFNGLFLUSHMAPPEDBUFFERRANGEPROC)(GLenum target, GLintptr offset, GLsizeiptr length);
//typedef GLboolean (*PFNGLISVERTEXARRAYPROC)(GLuint array);
#endif /* GL_VERSION_3_0 */
#ifndef GL_VERSION_3_1
#define GL_VERSION_3_1 1
#define GL_SAMPLER_2D_RECT 0x8B63
#define GL_SAMPLER_2D_RECT_SHADOW 0x8B64
#define GL_SAMPLER_BUFFER 0x8DC2
#define GL_INT_SAMPLER_2D_RECT 0x8DCD
#define GL_INT_SAMPLER_BUFFER 0x8DD0
#define GL_UNSIGNED_INT_SAMPLER_2D_RECT 0x8DD5
#define GL_UNSIGNED_INT_SAMPLER_BUFFER 0x8DD8
#define GL_TEXTURE_BUFFER 0x8C2A
#define GL_MAX_TEXTURE_BUFFER_SIZE 0x8C2B
#define GL_TEXTURE_BINDING_BUFFER 0x8C2C
#define GL_TEXTURE_BUFFER_DATA_STORE_BINDING 0x8C2D
#define GL_TEXTURE_RECTANGLE 0x84F5
#define GL_TEXTURE_BINDING_RECTANGLE 0x84F6
#define GL_PROXY_TEXTURE_RECTANGLE 0x84F7
#define GL_MAX_RECTANGLE_TEXTURE_SIZE 0x84F8
#define GL_R8_SNORM 0x8F94
#define GL_RG8_SNORM 0x8F95
#define GL_RGB8_SNORM 0x8F96
#define GL_RGBA8_SNORM 0x8F97
#define GL_R16_SNORM 0x8F98
#define GL_RG16_SNORM 0x8F99
#define GL_RGB16_SNORM 0x8F9A
#define GL_RGBA16_SNORM 0x8F9B
#define GL_SIGNED_NORMALIZED 0x8F9C
#define GL_PRIMITIVE_RESTART 0x8F9D
#define GL_PRIMITIVE_RESTART_INDEX 0x8F9E
#define GL_COPY_READ_BUFFER 0x8F36
#define GL_COPY_WRITE_BUFFER 0x8F37
#define GL_UNIFORM_BUFFER 0x8A11
#define GL_UNIFORM_BUFFER_BINDING 0x8A28
#define GL_UNIFORM_BUFFER_START 0x8A29
#define GL_UNIFORM_BUFFER_SIZE 0x8A2A
#define GL_MAX_VERTEX_UNIFORM_BLOCKS 0x8A2B
#define GL_MAX_GEOMETRY_UNIFORM_BLOCKS 0x8A2C
#define GL_MAX_FRAGMENT_UNIFORM_BLOCKS 0x8A2D
#define GL_MAX_COMBINED_UNIFORM_BLOCKS 0x8A2E
#define GL_MAX_UNIFORM_BUFFER_BINDINGS 0x8A2F
#define GL_MAX_UNIFORM_BLOCK_SIZE 0x8A30
#define GL_MAX_COMBINED_VERTEX_UNIFORM_COMPONENTS 0x8A31
#define GL_MAX_COMBINED_GEOMETRY_UNIFORM_COMPONENTS 0x8A32
#define GL_MAX_COMBINED_FRAGMENT_UNIFORM_COMPONENTS 0x8A33
#define GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT 0x8A34
#define GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH 0x8A35
#define GL_ACTIVE_UNIFORM_BLOCKS 0x8A36
#define GL_UNIFORM_TYPE 0x8A37
#define GL_UNIFORM_SIZE 0x8A38
#define GL_UNIFORM_NAME_LENGTH 0x8A39
#define GL_UNIFORM_BLOCK_INDEX 0x8A3A
#define GL_UNIFORM_OFFSET 0x8A3B
#define GL_UNIFORM_ARRAY_STRIDE 0x8A3C
#define GL_UNIFORM_MATRIX_STRIDE 0x8A3D
#define GL_UNIFORM_IS_ROW_MAJOR 0x8A3E
#define GL_UNIFORM_BLOCK_BINDING 0x8A3F
#define GL_UNIFORM_BLOCK_DATA_SIZE 0x8A40
#define GL_UNIFORM_BLOCK_NAME_LENGTH 0x8A41
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS 0x8A42
#define GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES 0x8A43
#define GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER 0x8A44
#define GL_UNIFORM_BLOCK_REFERENCED_BY_GEOMETRY_SHADER 0x8A45
#define GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER 0x8A46
#define GL_INVALID_INDEX 0xFFFFFFFFu
typedef GLuint (*PFNGLGETUNIFORMBLOCKINDEXPROC)(GLuint program, const GLchar *uniformBlockName);
typedef void (*PFNGLUNIFORMBLOCKBINDINGPROC)(GLuint program, GLuint uniformBlockIndex, GLuint uniformBlockBinding);
//typedef void (*PFNGLDRAWARRAYSINSTANCEDPROC)(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
//typedef void (*PFNGLDRAWELEMENTSINSTANCEDPROC)(GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei instancecount);
//typedef void (*PFNGLTEXBUFFERPROC)(GLenum target, GLenum internalformat, GLuint buffer);
//typedef void (*PFNGLPRIMITIVERESTARTINDEXPROC)(GLuint index);
//typedef void (*PFNGLCOPYBUFFERSUBDATAPROC)(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
//typedef void (*PFNGLGETUNIFORMINDICESPROC)(GLuint program, GLsizei uniformCount, const GLchar *const*uniformNames, GLuint *uniformIndices);
//typedef void (*PFNGLGETACTIVEUNIFORMSIVPROC)(GLuint program, GLsizei uniformCount, const GLuint *uniformIndices, GLenum pname, GLint *params);
//typedef void (*PFNGLGETACTIVEUNIFORMNAMEPROC)(GLuint program, GLuint uniformIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformName);
//typedef void (*PFNGLGETACTIVEUNIFORMBLOCKIVPROC)(GLuint program, GLuint uniformBlockIndex, GLenum pname, GLint *params);
//typedef void (*PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC)(GLuint program, GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName);
#endif /* GL_VERSION_3_1 */
//GL_VERSION_1_0
extern PFNGLCULLFACEPROC glCullFace;
extern PFNGLFRONTFACEPROC glFrontFace;
extern PFNGLSCISSORPROC glScissor;
extern PFNGLTEXPARAMETERIPROC glTexParameteri;
extern PFNGLTEXIMAGE2DPROC glTexImage2D;
extern PFNGLDRAWBUFFERPROC glDrawBuffer;
extern PFNGLDRAWBUFFERSPROC glDrawBuffers;
extern PFNGLCLEARPROC glClear;
extern PFNGLCLEARCOLORPROC glClearColor;
extern PFNGLCLEARSTENCILPROC glClearStencil;
extern PFNGLCLEARDEPTHPROC glClearDepth;
extern PFNGLCLEARDEPTHFPROC glClearDepthf; // GLES
extern PFNGLCOLORMASKPROC glColorMask;
extern PFNGLDEPTHMASKPROC glDepthMask;
extern PFNGLDISABLEPROC glDisable;
extern PFNGLENABLEPROC glEnable;
extern PFNGLBLENDFUNCPROC glBlendFunc;
extern PFNGLSTENCILFUNCPROC glStencilFunc;
extern PFNGLSTENCILOPPROC glStencilOp;
extern PFNGLDEPTHFUNCPROC glDepthFunc;
extern PFNGLGETERRORPROC glGetError;
extern PFNGLGETINTEGERVPROC glGetIntegerv;
extern PFNGLGETSTRINGPROC glGetString;
extern PFNGLVIEWPORTPROC glViewport;
//extern PFNGLHINTPROC glHint;
//extern PFNGLLINEWIDTHPROC glLineWidth;
//extern PFNGLPOINTSIZEPROC glPointSize;
//extern PFNGLPOLYGONMODEPROC glPolygonMode;
//extern PFNGLTEXPARAMETERFPROC glTexParameterf;
//extern PFNGLTEXPARAMETERFVPROC glTexParameterfv;
//extern PFNGLTEXPARAMETERIVPROC glTexParameteriv;
//extern PFNGLTEXIMAGE1DPROC glTexImage1D;
//extern PFNGLSTENCILMASKPROC glStencilMask;
//extern PFNGLFINISHPROC glFinish;
//extern PFNGLFLUSHPROC glFlush;
//extern PFNGLLOGICOPPROC glLogicOp;
//extern PFNGLPIXELSTOREFPROC glPixelStoref;
//extern PFNGLPIXELSTOREIPROC glPixelStorei;
//extern PFNGLREADBUFFERPROC glReadBuffer;
//extern PFNGLREADPIXELSPROC glReadPixels;
//extern PFNGLGETBOOLEANVPROC glGetBooleanv;
//extern PFNGLGETDOUBLEVPROC glGetDoublev;
//extern PFNGLGETFLOATVPROC glGetFloatv;
//extern PFNGLGETTEXIMAGEPROC glGetTexImage;
//extern PFNGLGETTEXPARAMETERFVPROC glGetTexParameterfv;
//extern PFNGLGETTEXPARAMETERIVPROC glGetTexParameteriv;
//extern PFNGLGETTEXLEVELPARAMETERFVPROC glGetTexLevelParameterfv;
//extern PFNGLGETTEXLEVELPARAMETERIVPROC glGetTexLevelParameteriv;
//extern PFNGLISENABLEDPROC glIsEnabled;
//extern PFNGLDEPTHRANGEPROC glDepthRange;
//GL_VERSION_1_1
extern PFNGLDRAWELEMENTSPROC glDrawElements;
extern PFNGLBINDTEXTUREPROC glBindTexture;
extern PFNGLDELETETEXTURESPROC glDeleteTextures;
extern PFNGLGENTEXTURESPROC glGenTextures;
//extern PFNGLDRAWARRAYSPROC glDrawArrays;
//extern PFNGLGETPOINTERVPROC glGetPointerv;
//extern PFNGLPOLYGONOFFSETPROC glPolygonOffset;
//extern PFNGLCOPYTEXIMAGE1DPROC glCopyTexImage1D;
//extern PFNGLCOPYTEXIMAGE2DPROC glCopyTexImage2D;
//extern PFNGLCOPYTEXSUBIMAGE1DPROC glCopyTexSubImage1D;
//extern PFNGLCOPYTEXSUBIMAGE2DPROC glCopyTexSubImage2D;
//extern PFNGLTEXSUBIMAGE1DPROC glTexSubImage1D;
//extern PFNGLTEXSUBIMAGE2DPROC glTexSubImage2D;
//extern PFNGLISTEXTUREPROC glIsTexture;
//GL_VERSION_1_2
//extern PFNGLDRAWRANGEELEMENTSPROC glDrawRangeElements;
//extern PFNGLTEXIMAGE3DPROC glTexImage3D;
//extern PFNGLTEXSUBIMAGE3DPROC glTexSubImage3D;
//extern PFNGLCOPYTEXSUBIMAGE3DPROC glCopyTexSubImage3D;
//GL_VERSION_1_3
extern PFNGLACTIVETEXTUREPROC glActiveTexture;
//extern PFNGLSAMPLECOVERAGEPROC glSampleCoverage;
//extern PFNGLCOMPRESSEDTEXIMAGE3DPROC glCompressedTexImage3D;
//extern PFNGLCOMPRESSEDTEXIMAGE2DPROC glCompressedTexImage2D;
//extern PFNGLCOMPRESSEDTEXIMAGE1DPROC glCompressedTexImage1D;
//extern PFNGLCOMPRESSEDTEXSUBIMAGE3DPROC glCompressedTexSubImage3D;
//extern PFNGLCOMPRESSEDTEXSUBIMAGE2DPROC glCompressedTexSubImage2D;
//extern PFNGLCOMPRESSEDTEXSUBIMAGE1DPROC glCompressedTexSubImage1D;
//extern PFNGLGETCOMPRESSEDTEXIMAGEPROC glGetCompressedTexImage;
//GL_VERSION_1_4
extern PFNGLBLENDEQUATIONPROC glBlendEquation;
//extern PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate;
//extern PFNGLMULTIDRAWARRAYSPROC glMultiDrawArrays;
//extern PFNGLMULTIDRAWELEMENTSPROC glMultiDrawElements;
//extern PFNGLPOINTPARAMETERFPROC glPointParameterf;
//extern PFNGLPOINTPARAMETERFVPROC glPointParameterfv;
//extern PFNGLPOINTPARAMETERIPROC glPointParameteri;
//extern PFNGLPOINTPARAMETERIVPROC glPointParameteriv;
//extern PFNGLBLENDCOLORPROC glBlendColor;
//GL_VERSION_1_5
extern PFNGLBINDBUFFERPROC glBindBuffer;
extern PFNGLDELETEBUFFERSPROC glDeleteBuffers;
extern PFNGLGENBUFFERSPROC glGenBuffers;
extern PFNGLBUFFERDATAPROC glBufferData;
//extern PFNGLGENQUERIESPROC glGenQueries;
//extern PFNGLDELETEQUERIESPROC glDeleteQueries;
//extern PFNGLISQUERYPROC glIsQuery;
//extern PFNGLBEGINQUERYPROC glBeginQuery;
//extern PFNGLENDQUERYPROC glEndQuery;
//extern PFNGLGETQUERYIVPROC glGetQueryiv;
//extern PFNGLGETQUERYOBJECTIVPROC glGetQueryObjectiv;
//extern PFNGLGETQUERYOBJECTUIVPROC glGetQueryObjectuiv;
//extern PFNGLISBUFFERPROC glIsBuffer;
//extern PFNGLBUFFERSUBDATAPROC glBufferSubData;
//extern PFNGLGETBUFFERSUBDATAPROC glGetBufferSubData;
//extern PFNGLMAPBUFFERPROC glMapBuffer;
//extern PFNGLUNMAPBUFFERPROC glUnmapBuffer;
//extern PFNGLGETBUFFERPARAMETERIVPROC glGetBufferParameteriv;
//extern PFNGLGETBUFFERPOINTERVPROC glGetBufferPointerv;
// GL_VERSION_2_0
extern PFNGLSTENCILOPSEPARATEPROC glStencilOpSeparate;
extern PFNGLSTENCILFUNCSEPARATEPROC glStencilFuncSeparate;
extern PFNGLATTACHSHADERPROC glAttachShader;
extern PFNGLCOMPILESHADERPROC glCompileShader;
extern PFNGLCREATEPROGRAMPROC glCreateProgram;
extern PFNGLCREATESHADERPROC glCreateShader;
extern PFNGLDELETEPROGRAMPROC glDeleteProgram;
extern PFNGLDELETESHADERPROC glDeleteShader;
extern PFNGLDISABLEVERTEXATTRIBARRAYPROC glDisableVertexAttribArray;
extern PFNGLENABLEVERTEXATTRIBARRAYPROC glEnableVertexAttribArray;
extern PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation;
extern PFNGLGETPROGRAMIVPROC glGetProgramiv;
extern PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog;
extern PFNGLGETSHADERIVPROC glGetShaderiv;
extern PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog;
extern PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation;
extern PFNGLLINKPROGRAMPROC glLinkProgram;
extern PFNGLSHADERSOURCEPROC glShaderSource;
extern PFNGLUSEPROGRAMPROC glUseProgram;
extern PFNGLUNIFORM1FPROC glUniform1f;
extern PFNGLUNIFORM1FVPROC glUniform1fv;
extern PFNGLUNIFORM2FVPROC glUniform2fv;
extern PFNGLUNIFORM3FVPROC glUniform3fv;
extern PFNGLUNIFORM4FVPROC glUniform4fv;
extern PFNGLUNIFORM1IVPROC glUniform1iv;
extern PFNGLUNIFORM2IVPROC glUniform2iv;
extern PFNGLUNIFORM3IVPROC glUniform3iv;
extern PFNGLUNIFORM4IVPROC glUniform4iv;
extern PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv;
extern PFNGLVERTEXATTRIBPOINTERPROC glVertexAttribPointer;
//extern PFNGLBLENDEQUATIONSEPARATEPROC glBlendEquationSeparate;
//extern PFNGLDRAWBUFFERSPROC glDrawBuffers;
//extern PFNGLSTENCILMASKSEPARATEPROC glStencilMaskSeparate;
//extern PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation;
//extern PFNGLDETACHSHADERPROC glDetachShader;
//extern PFNGLGETACTIVEATTRIBPROC glGetActiveAttrib;
//extern PFNGLGETACTIVEUNIFORMPROC glGetActiveUniform;
//extern PFNGLGETATTACHEDSHADERSPROC glGetAttachedShaders;
//extern PFNGLGETSHADERSOURCEPROC glGetShaderSource;
//extern PFNGLGETUNIFORMFVPROC glGetUniformfv;
//extern PFNGLGETUNIFORMIVPROC glGetUniformiv;
//extern PFNGLGETVERTEXATTRIBDVPROC glGetVertexAttribdv;
//extern PFNGLGETVERTEXATTRIBFVPROC glGetVertexAttribfv;
//extern PFNGLGETVERTEXATTRIBIVPROC glGetVertexAttribiv;
//extern PFNGLGETVERTEXATTRIBPOINTERVPROC glGetVertexAttribPointerv;
//extern PFNGLISPROGRAMPROC glIsProgram;
//extern PFNGLISSHADERPROC glIsShader;
//extern PFNGLUNIFORM2FPROC glUniform2f;
//extern PFNGLUNIFORM3FPROC glUniform3f;
//extern PFNGLUNIFORM4FPROC glUniform4f;
//extern PFNGLUNIFORM1IPROC glUniform1i;
//extern PFNGLUNIFORM2IPROC glUniform2i;
//extern PFNGLUNIFORM3IPROC glUniform3i;
//extern PFNGLUNIFORM4IPROC glUniform4i;
//extern PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv;
//extern PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv;
//extern PFNGLVALIDATEPROGRAMPROC glValidateProgram;
//extern PFNGLVERTEXATTRIB1DPROC glVertexAttrib1d;
//extern PFNGLVERTEXATTRIB1DVPROC glVertexAttrib1dv;
//extern PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f;
//extern PFNGLVERTEXATTRIB1FVPROC glVertexAttrib1fv;
//extern PFNGLVERTEXATTRIB1SPROC glVertexAttrib1s;
//extern PFNGLVERTEXATTRIB1SVPROC glVertexAttrib1sv;
//extern PFNGLVERTEXATTRIB2DPROC glVertexAttrib2d;
//extern PFNGLVERTEXATTRIB2DVPROC glVertexAttrib2dv;
//extern PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f;
//extern PFNGLVERTEXATTRIB2FVPROC glVertexAttrib2fv;
//extern PFNGLVERTEXATTRIB2SPROC glVertexAttrib2s;
//extern PFNGLVERTEXATTRIB2SVPROC glVertexAttrib2sv;
//extern PFNGLVERTEXATTRIB3DPROC glVertexAttrib3d;
//extern PFNGLVERTEXATTRIB3DVPROC glVertexAttrib3dv;
//extern PFNGLVERTEXATTRIB3FPROC glVertexAttrib3f;
//extern PFNGLVERTEXATTRIB3FVPROC glVertexAttrib3fv;
//extern PFNGLVERTEXATTRIB3SPROC glVertexAttrib3s;
//extern PFNGLVERTEXATTRIB3SVPROC glVertexAttrib3sv;
//extern PFNGLVERTEXATTRIB4NBVPROC glVertexAttrib4Nbv;
//extern PFNGLVERTEXATTRIB4NIVPROC glVertexAttrib4Niv;
//extern PFNGLVERTEXATTRIB4NSVPROC glVertexAttrib4Nsv;
//extern PFNGLVERTEXATTRIB4NUBPROC glVertexAttrib4Nub;
//extern PFNGLVERTEXATTRIB4NUBVPROC glVertexAttrib4Nubv;
//extern PFNGLVERTEXATTRIB4NUIVPROC glVertexAttrib4Nuiv;
//extern PFNGLVERTEXATTRIB4NUSVPROC glVertexAttrib4Nusv;
//extern PFNGLVERTEXATTRIB4BVPROC glVertexAttrib4bv;
//extern PFNGLVERTEXATTRIB4DPROC glVertexAttrib4d;
//extern PFNGLVERTEXATTRIB4DVPROC glVertexAttrib4dv;
//extern PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f;
//extern PFNGLVERTEXATTRIB4FVPROC glVertexAttrib4fv;
//extern PFNGLVERTEXATTRIB4IVPROC glVertexAttrib4iv;
//extern PFNGLVERTEXATTRIB4SPROC glVertexAttrib4s;
//extern PFNGLVERTEXATTRIB4SVPROC glVertexAttrib4sv;
//extern PFNGLVERTEXATTRIB4UBVPROC glVertexAttrib4ubv;
//extern PFNGLVERTEXATTRIB4UIVPROC glVertexAttrib4uiv;
//extern PFNGLVERTEXATTRIB4USVPROC glVertexAttrib4usv;
//GL_VERSION_2_1
//extern PFNGLUNIFORMMATRIX2X3FVPROC glUniformMatrix2x3fv;
//extern PFNGLUNIFORMMATRIX3X2FVPROC glUniformMatrix3x2fv;
//extern PFNGLUNIFORMMATRIX2X4FVPROC glUniformMatrix2x4fv;
//extern PFNGLUNIFORMMATRIX4X2FVPROC glUniformMatrix4x2fv;
//extern PFNGLUNIFORMMATRIX3X4FVPROC glUniformMatrix3x4fv;
//extern PFNGLUNIFORMMATRIX4X3FVPROC glUniformMatrix4x3fv;
//GL_VERSION_3_0
extern PFNGLBINDBUFFERRANGEPROC glBindBufferRange;
extern PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer;
extern PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers;
extern PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers;
extern PFNGLINVALIDATEFRAMEBUFFERPROC glInvalidateFramebuffer;
extern PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer;
extern PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers;
extern PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers;
extern PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D;
extern PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer;
extern PFNGLBLITFRAMEBUFFERPROC glBlitFramebuffer;
extern PFNGLRENDERBUFFERSTORAGEMULTISAMPLEPROC glRenderbufferStorageMultisample;
extern PFNGLBINDVERTEXARRAYPROC glBindVertexArray;
extern PFNGLDELETEVERTEXARRAYSPROC glDeleteVertexArrays;
extern PFNGLGENVERTEXARRAYSPROC glGenVertexArrays;
//extern PFNGLCOLORMASKIPROC glColorMaski;
//extern PFNGLGETBOOLEANI_VPROC glGetBooleani_v;
//extern PFNGLGETINTEGERI_VPROC glGetIntegeri_v;
//extern PFNGLENABLEIPROC glEnablei;
//extern PFNGLDISABLEIPROC glDisablei;
//extern PFNGLISENABLEDIPROC glIsEnabledi;
//extern PFNGLBEGINTRANSFORMFEEDBACKPROC glBeginTransformFeedback;
//extern PFNGLENDTRANSFORMFEEDBACKPROC glEndTransformFeedback;
//extern PFNGLBINDBUFFERBASEPROC glBindBufferBase;
//extern PFNGLTRANSFORMFEEDBACKVARYINGSPROC glTransformFeedbackVaryings;
//extern PFNGLGETTRANSFORMFEEDBACKVARYINGPROC glGetTransformFeedbackVarying;
//extern PFNGLCLAMPCOLORPROC glClampColor;
//extern PFNGLBEGINCONDITIONALRENDERPROC glBeginConditionalRender;
//extern PFNGLENDCONDITIONALRENDERPROC glEndConditionalRender;
//extern PFNGLVERTEXATTRIBIPOINTERPROC glVertexAttribIPointer;
//extern PFNGLGETVERTEXATTRIBIIVPROC glGetVertexAttribIiv;
//extern PFNGLGETVERTEXATTRIBIUIVPROC glGetVertexAttribIuiv;
//extern PFNGLVERTEXATTRIBI1IPROC glVertexAttribI1i;
//extern PFNGLVERTEXATTRIBI2IPROC glVertexAttribI2i;
//extern PFNGLVERTEXATTRIBI3IPROC glVertexAttribI3i;
//extern PFNGLVERTEXATTRIBI4IPROC glVertexAttribI4i;
//extern PFNGLVERTEXATTRIBI1UIPROC glVertexAttribI1ui;
//extern PFNGLVERTEXATTRIBI2UIPROC glVertexAttribI2ui;
//extern PFNGLVERTEXATTRIBI3UIPROC glVertexAttribI3ui;
//extern PFNGLVERTEXATTRIBI4UIPROC glVertexAttribI4ui;
//extern PFNGLVERTEXATTRIBI1IVPROC glVertexAttribI1iv;
//extern PFNGLVERTEXATTRIBI2IVPROC glVertexAttribI2iv;
//extern PFNGLVERTEXATTRIBI3IVPROC glVertexAttribI3iv;
//extern PFNGLVERTEXATTRIBI4IVPROC glVertexAttribI4iv;
//extern PFNGLVERTEXATTRIBI1UIVPROC glVertexAttribI1uiv;
//extern PFNGLVERTEXATTRIBI2UIVPROC glVertexAttribI2uiv;
//extern PFNGLVERTEXATTRIBI3UIVPROC glVertexAttribI3uiv;
//extern PFNGLVERTEXATTRIBI4UIVPROC glVertexAttribI4uiv;
//extern PFNGLVERTEXATTRIBI4BVPROC glVertexAttribI4bv;
//extern PFNGLVERTEXATTRIBI4SVPROC glVertexAttribI4sv;
//extern PFNGLVERTEXATTRIBI4UBVPROC glVertexAttribI4ubv;
//extern PFNGLVERTEXATTRIBI4USVPROC glVertexAttribI4usv;
//extern PFNGLGETUNIFORMUIVPROC glGetUniformuiv;
//extern PFNGLBINDFRAGDATALOCATIONPROC glBindFragDataLocation;
//extern PFNGLGETFRAGDATALOCATIONPROC glGetFragDataLocation;
//extern PFNGLUNIFORM1UIPROC glUniform1ui;
//extern PFNGLUNIFORM2UIPROC glUniform2ui;
//extern PFNGLUNIFORM3UIPROC glUniform3ui;
//extern PFNGLUNIFORM4UIPROC glUniform4ui;
//extern PFNGLUNIFORM1UIVPROC glUniform1uiv;
//extern PFNGLUNIFORM2UIVPROC glUniform2uiv;
//extern PFNGLUNIFORM3UIVPROC glUniform3uiv;
//extern PFNGLUNIFORM4UIVPROC glUniform4uiv;
//extern PFNGLTEXPARAMETERIIVPROC glTexParameterIiv;
//extern PFNGLTEXPARAMETERIUIVPROC glTexParameterIuiv;
//extern PFNGLGETTEXPARAMETERIIVPROC glGetTexParameterIiv;
//extern PFNGLGETTEXPARAMETERIUIVPROC glGetTexParameterIuiv;
//extern PFNGLCLEARBUFFERIVPROC glClearBufferiv;
//extern PFNGLCLEARBUFFERUIVPROC glClearBufferuiv;
//extern PFNGLCLEARBUFFERFVPROC glClearBufferfv;
//extern PFNGLCLEARBUFFERFIPROC glClearBufferfi;
//extern PFNGLGETSTRINGIPROC glGetStringi;
//extern PFNGLISRENDERBUFFERPROC glIsRenderbuffer;
//extern PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage;
//extern PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv;
//extern PFNGLISFRAMEBUFFERPROC glIsFramebuffer;
//extern PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus;
//extern PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D;
//extern PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D;
//extern PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv;
//extern PFNGLGENERATEMIPMAPPROC glGenerateMipmap;
//extern PFNGLFRAMEBUFFERTEXTURELAYERPROC glFramebufferTextureLayer;
//extern PFNGLMAPBUFFERRANGEPROC glMapBufferRange;
//extern PFNGLFLUSHMAPPEDBUFFERRANGEPROC glFlushMappedBufferRange;
//extern PFNGLISVERTEXARRAYPROC glIsVertexArray;
//GL_VERSION_3_1
extern PFNGLGETUNIFORMBLOCKINDEXPROC glGetUniformBlockIndex;
extern PFNGLUNIFORMBLOCKBINDINGPROC glUniformBlockBinding;
//extern PFNGLDRAWARRAYSINSTANCEDPROC glDrawArraysInstanced;
//extern PFNGLDRAWELEMENTSINSTANCEDPROC glDrawElementsInstanced;
//extern PFNGLTEXBUFFERPROC glTexBuffer;
//extern PFNGLPRIMITIVERESTARTINDEXPROC glPrimitiveRestartIndex;
//extern PFNGLCOPYBUFFERSUBDATAPROC glCopyBufferSubData;
//extern PFNGLGETUNIFORMINDICESPROC glGetUniformIndices;
//extern PFNGLGETACTIVEUNIFORMSIVPROC glGetActiveUniformsiv;
//extern PFNGLGETACTIVEUNIFORMNAMEPROC glGetActiveUniformName;
//extern PFNGLGETACTIVEUNIFORMBLOCKIVPROC glGetActiveUniformBlockiv;
//extern PFNGLGETACTIVEUNIFORMBLOCKNAMEPROC glGetActiveUniformBlockName;
#endif // __EMSCRIPTEN__
bool glInit();
bool glTerm();
#endif // _TVG_GL_H_
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