785 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			785 lines
		
	
	
		
			34 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
|   | //-----------------------------------------------------------------------------
 | ||
|  | // About imgui_impl_opengl3_loader.h:
 | ||
|  | //
 | ||
|  | // We embed our own OpenGL loader to not require user to provide their own or to have to use ours,
 | ||
|  | // which proved to be endless problems for users.
 | ||
|  | // Our loader is custom-generated, based on gl3w but automatically filtered to only include
 | ||
|  | // enums/functions that we use in our imgui_impl_opengl3.cpp source file in order to be small.
 | ||
|  | //
 | ||
|  | // YOU SHOULD NOT NEED TO INCLUDE/USE THIS DIRECTLY. THIS IS USED BY imgui_impl_opengl3.cpp ONLY.
 | ||
|  | // THE REST OF YOUR APP SHOULD USE A DIFFERENT GL LOADER: ANY GL LOADER OF YOUR CHOICE.
 | ||
|  | //
 | ||
|  | // Regenerate with:
 | ||
|  | //   python gl3w_gen.py --output ../imgui/backends/imgui_impl_opengl3_loader.h --ref ../imgui/backends/imgui_impl_opengl3.cpp ./extra_symbols.txt
 | ||
|  | //
 | ||
|  | // More info:
 | ||
|  | //   https://github.com/dearimgui/gl3w_stripped
 | ||
|  | //   https://github.com/ocornut/imgui/issues/4445
 | ||
|  | //-----------------------------------------------------------------------------
 | ||
|  | 
 | ||
|  | /*
 | ||
|  |  * This file was generated with gl3w_gen.py, part of imgl3w | ||
|  |  * (hosted at https://github.com/dearimgui/gl3w_stripped)
 | ||
|  |  * | ||
|  |  * This is free and unencumbered software released into the public domain. | ||
|  |  * | ||
|  |  * Anyone is free to copy, modify, publish, use, compile, sell, or | ||
|  |  * distribute this software, either in source code form or as a compiled | ||
|  |  * binary, for any purpose, commercial or non-commercial, and by any | ||
|  |  * means. | ||
|  |  * | ||
|  |  * In jurisdictions that recognize copyright laws, the author or authors | ||
|  |  * of this software dedicate any and all copyright interest in the | ||
|  |  * software to the public domain. We make this dedication for the benefit | ||
|  |  * of the public at large and to the detriment of our heirs and | ||
|  |  * successors. We intend this dedication to be an overt act of | ||
|  |  * relinquishment in perpetuity of all present and future rights to this | ||
|  |  * software under copyright law. | ||
|  |  * | ||
|  |  * 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 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 __gl3w_h_
 | ||
|  | #define __gl3w_h_
 | ||
|  | 
 | ||
|  | // Adapted from KHR/khrplatform.h to avoid including entire file.
 | ||
|  | #ifndef __khrplatform_h_
 | ||
|  | typedef          float         khronos_float_t; | ||
|  | 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; | ||
|  | #ifdef _WIN64
 | ||
|  | typedef signed   long long int khronos_intptr_t; | ||
|  | typedef signed   long long int khronos_ssize_t; | ||
|  | #else
 | ||
|  | typedef signed   long  int     khronos_intptr_t; | ||
|  | typedef signed   long  int     khronos_ssize_t; | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #if defined(_MSC_VER) && !defined(__clang__)
 | ||
|  | typedef signed   __int64       khronos_int64_t; | ||
|  | typedef unsigned __int64       khronos_uint64_t; | ||
|  | #elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
 | ||
|  | #include <stdint.h>
 | ||
|  | typedef          int64_t       khronos_int64_t; | ||
|  | typedef          uint64_t      khronos_uint64_t; | ||
|  | #else
 | ||
|  | typedef signed   long long     khronos_int64_t; | ||
|  | typedef unsigned long long     khronos_uint64_t; | ||
|  | #endif
 | ||
|  | #endif  // __khrplatform_h_
 | ||
|  | 
 | ||
|  | #ifndef __gl_glcorearb_h_
 | ||
|  | #define __gl_glcorearb_h_ 1
 | ||
|  | #ifdef __cplusplus
 | ||
|  | extern "C" { | ||
|  | #endif
 | ||
|  | /*
 | ||
|  | ** Copyright 2013-2020 The Khronos Group Inc. | ||
|  | ** SPDX-License-Identifier: MIT | ||
|  | ** | ||
|  | ** This header is generated from the Khronos OpenGL / OpenGL ES XML | ||
|  | ** API Registry. The current version of the Registry, generator scripts | ||
|  | ** used to make the header, and the header can be found at | ||
|  | **   https://github.com/KhronosGroup/OpenGL-Registry
 | ||
|  | */ | ||
|  | #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
 | ||
|  | #ifndef APIENTRY
 | ||
|  | #define APIENTRY
 | ||
|  | #endif
 | ||
|  | #ifndef APIENTRYP
 | ||
|  | #define APIENTRYP APIENTRY *
 | ||
|  | #endif
 | ||
|  | #ifndef GLAPI
 | ||
|  | #define GLAPI extern
 | ||
|  | #endif
 | ||
|  | /* glcorearb.h is for use with OpenGL core profile implementations.
 | ||
|  | ** It should should be placed in the same directory as gl.h and | ||
|  | ** included as <GL/glcorearb.h>. | ||
|  | ** | ||
|  | ** glcorearb.h includes only APIs in the latest OpenGL core profile | ||
|  | ** implementation together with APIs in newer ARB extensions which  | ||
|  | ** can be supported by the core profile. It does not, and never will | ||
|  | ** include functionality removed from the core profile, such as | ||
|  | ** fixed-function vertex and fragment processing. | ||
|  | ** | ||
|  | ** Do not #include both <GL/glcorearb.h> and either of <GL/gl.h> or | ||
|  | ** <GL/glext.h> in the same source file. | ||
|  | */ | ||
|  | /* Generated C header for:
 | ||
|  |  * API: gl | ||
|  |  * Profile: core | ||
|  |  * Versions considered: .* | ||
|  |  * Versions emitted: .* | ||
|  |  * Default extensions included: glcore | ||
|  |  * Additional extensions included: _nomatch_^ | ||
|  |  * Extensions removed: _nomatch_^ | ||
|  |  */ | ||
|  | #ifndef GL_VERSION_1_0
 | ||
|  | 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_COLOR_BUFFER_BIT               0x00004000
 | ||
|  | #define GL_FALSE                          0
 | ||
|  | #define GL_TRUE                           1
 | ||
|  | #define GL_TRIANGLES                      0x0004
 | ||
|  | #define GL_ONE                            1
 | ||
|  | #define GL_SRC_ALPHA                      0x0302
 | ||
|  | #define GL_ONE_MINUS_SRC_ALPHA            0x0303
 | ||
|  | #define GL_FRONT_AND_BACK                 0x0408
 | ||
|  | #define GL_POLYGON_MODE                   0x0B40
 | ||
|  | #define GL_CULL_FACE                      0x0B44
 | ||
|  | #define GL_DEPTH_TEST                     0x0B71
 | ||
|  | #define GL_STENCIL_TEST                   0x0B90
 | ||
|  | #define GL_VIEWPORT                       0x0BA2
 | ||
|  | #define GL_BLEND                          0x0BE2
 | ||
|  | #define GL_SCISSOR_BOX                    0x0C10
 | ||
|  | #define GL_SCISSOR_TEST                   0x0C11
 | ||
|  | #define GL_UNPACK_ROW_LENGTH              0x0CF2
 | ||
|  | #define GL_PACK_ALIGNMENT                 0x0D05
 | ||
|  | #define GL_TEXTURE_2D                     0x0DE1
 | ||
|  | #define GL_UNSIGNED_BYTE                  0x1401
 | ||
|  | #define GL_UNSIGNED_SHORT                 0x1403
 | ||
|  | #define GL_UNSIGNED_INT                   0x1405
 | ||
|  | #define GL_FLOAT                          0x1406
 | ||
|  | #define GL_RGBA                           0x1908
 | ||
|  | #define GL_FILL                           0x1B02
 | ||
|  | #define GL_VERSION                        0x1F02
 | ||
|  | #define GL_EXTENSIONS                     0x1F03
 | ||
|  | #define GL_LINEAR                         0x2601
 | ||
|  | #define GL_TEXTURE_MAG_FILTER             0x2800
 | ||
|  | #define GL_TEXTURE_MIN_FILTER             0x2801
 | ||
|  | typedef void (APIENTRYP PFNGLPOLYGONMODEPROC) (GLenum face, GLenum mode); | ||
|  | typedef void (APIENTRYP PFNGLSCISSORPROC) (GLint x, GLint y, GLsizei width, GLsizei height); | ||
|  | typedef void (APIENTRYP PFNGLTEXPARAMETERIPROC) (GLenum target, GLenum pname, GLint param); | ||
|  | typedef void (APIENTRYP PFNGLTEXIMAGE2DPROC) (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); | ||
|  | typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask); | ||
|  | typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); | ||
|  | typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap); | ||
|  | typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap); | ||
|  | typedef void (APIENTRYP PFNGLFLUSHPROC) (void); | ||
|  | typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param); | ||
|  | typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); | ||
|  | typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void); | ||
|  | typedef void (APIENTRYP PFNGLGETINTEGERVPROC) (GLenum pname, GLint *data); | ||
|  | typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGPROC) (GLenum name); | ||
|  | typedef GLboolean (APIENTRYP PFNGLISENABLEDPROC) (GLenum cap); | ||
|  | typedef void (APIENTRYP PFNGLVIEWPORTPROC) (GLint x, GLint y, GLsizei width, GLsizei height); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glPolygonMode (GLenum face, GLenum mode); | ||
|  | GLAPI void APIENTRY glScissor (GLint x, GLint y, GLsizei width, GLsizei height); | ||
|  | GLAPI void APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param); | ||
|  | GLAPI void APIENTRY glTexImage2D (GLenum target, GLint level, GLint internalformat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void *pixels); | ||
|  | GLAPI void APIENTRY glClear (GLbitfield mask); | ||
|  | GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha); | ||
|  | GLAPI void APIENTRY glDisable (GLenum cap); | ||
|  | GLAPI void APIENTRY glEnable (GLenum cap); | ||
|  | GLAPI void APIENTRY glFlush (void); | ||
|  | GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param); | ||
|  | GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels); | ||
|  | GLAPI GLenum APIENTRY glGetError (void); | ||
|  | GLAPI void APIENTRY glGetIntegerv (GLenum pname, GLint *data); | ||
|  | GLAPI const GLubyte *APIENTRY glGetString (GLenum name); | ||
|  | GLAPI GLboolean APIENTRY glIsEnabled (GLenum cap); | ||
|  | GLAPI void APIENTRY glViewport (GLint x, GLint y, GLsizei width, GLsizei height); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_1_0 */
 | ||
|  | #ifndef GL_VERSION_1_1
 | ||
|  | typedef khronos_float_t GLclampf; | ||
|  | typedef double GLclampd; | ||
|  | #define GL_TEXTURE_BINDING_2D             0x8069
 | ||
|  | typedef void (APIENTRYP PFNGLDRAWELEMENTSPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices); | ||
|  | typedef void (APIENTRYP PFNGLBINDTEXTUREPROC) (GLenum target, GLuint texture); | ||
|  | typedef void (APIENTRYP PFNGLDELETETEXTURESPROC) (GLsizei n, const GLuint *textures); | ||
|  | typedef void (APIENTRYP PFNGLGENTEXTURESPROC) (GLsizei n, GLuint *textures); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glDrawElements (GLenum mode, GLsizei count, GLenum type, const void *indices); | ||
|  | GLAPI void APIENTRY glBindTexture (GLenum target, GLuint texture); | ||
|  | GLAPI void APIENTRY glDeleteTextures (GLsizei n, const GLuint *textures); | ||
|  | GLAPI void APIENTRY glGenTextures (GLsizei n, GLuint *textures); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_1_1 */
 | ||
|  | #ifndef GL_VERSION_1_3
 | ||
|  | #define GL_TEXTURE0                       0x84C0
 | ||
|  | #define GL_ACTIVE_TEXTURE                 0x84E0
 | ||
|  | typedef void (APIENTRYP PFNGLACTIVETEXTUREPROC) (GLenum texture); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glActiveTexture (GLenum texture); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_1_3 */
 | ||
|  | #ifndef GL_VERSION_1_4
 | ||
|  | #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_FUNC_ADD                       0x8006
 | ||
|  | typedef void (APIENTRYP PFNGLBLENDFUNCSEPARATEPROC) (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); | ||
|  | typedef void (APIENTRYP PFNGLBLENDEQUATIONPROC) (GLenum mode); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glBlendFuncSeparate (GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha); | ||
|  | GLAPI void APIENTRY glBlendEquation (GLenum mode); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_1_4 */
 | ||
|  | #ifndef GL_VERSION_1_5
 | ||
|  | typedef khronos_ssize_t GLsizeiptr; | ||
|  | typedef khronos_intptr_t GLintptr; | ||
|  | #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_STREAM_DRAW                    0x88E0
 | ||
|  | typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer); | ||
|  | typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers); | ||
|  | typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers); | ||
|  | typedef void (APIENTRYP PFNGLBUFFERDATAPROC) (GLenum target, GLsizeiptr size, const void *data, GLenum usage); | ||
|  | typedef void (APIENTRYP PFNGLBUFFERSUBDATAPROC) (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glBindBuffer (GLenum target, GLuint buffer); | ||
|  | GLAPI void APIENTRY glDeleteBuffers (GLsizei n, const GLuint *buffers); | ||
|  | GLAPI void APIENTRY glGenBuffers (GLsizei n, GLuint *buffers); | ||
|  | GLAPI void APIENTRY glBufferData (GLenum target, GLsizeiptr size, const void *data, GLenum usage); | ||
|  | GLAPI void APIENTRY glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const void *data); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_1_5 */
 | ||
|  | #ifndef GL_VERSION_2_0
 | ||
|  | 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_VERTEX_ATTRIB_ARRAY_POINTER    0x8645
 | ||
|  | #define GL_BLEND_EQUATION_ALPHA           0x883D
 | ||
|  | #define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
 | ||
|  | #define GL_FRAGMENT_SHADER                0x8B30
 | ||
|  | #define GL_VERTEX_SHADER                  0x8B31
 | ||
|  | #define GL_COMPILE_STATUS                 0x8B81
 | ||
|  | #define GL_LINK_STATUS                    0x8B82
 | ||
|  | #define GL_INFO_LOG_LENGTH                0x8B84
 | ||
|  | #define GL_CURRENT_PROGRAM                0x8B8D
 | ||
|  | #define GL_UPPER_LEFT                     0x8CA2
 | ||
|  | typedef void (APIENTRYP PFNGLBLENDEQUATIONSEPARATEPROC) (GLenum modeRGB, GLenum modeAlpha); | ||
|  | typedef void (APIENTRYP PFNGLATTACHSHADERPROC) (GLuint program, GLuint shader); | ||
|  | typedef void (APIENTRYP PFNGLCOMPILESHADERPROC) (GLuint shader); | ||
|  | typedef GLuint (APIENTRYP PFNGLCREATEPROGRAMPROC) (void); | ||
|  | typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type); | ||
|  | typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program); | ||
|  | typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader); | ||
|  | typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader); | ||
|  | typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index); | ||
|  | typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index); | ||
|  | typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name); | ||
|  | typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params); | ||
|  | typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); | ||
|  | typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params); | ||
|  | typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); | ||
|  | typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name); | ||
|  | typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params); | ||
|  | typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer); | ||
|  | typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program); | ||
|  | typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); | ||
|  | typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program); | ||
|  | typedef void (APIENTRYP PFNGLUNIFORM1IPROC) (GLint location, GLint v0); | ||
|  | typedef void (APIENTRYP PFNGLUNIFORMMATRIX4FVPROC) (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); | ||
|  | typedef void (APIENTRYP PFNGLVERTEXATTRIBPOINTERPROC) (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glBlendEquationSeparate (GLenum modeRGB, GLenum modeAlpha); | ||
|  | GLAPI void APIENTRY glAttachShader (GLuint program, GLuint shader); | ||
|  | GLAPI void APIENTRY glCompileShader (GLuint shader); | ||
|  | GLAPI GLuint APIENTRY glCreateProgram (void); | ||
|  | GLAPI GLuint APIENTRY glCreateShader (GLenum type); | ||
|  | GLAPI void APIENTRY glDeleteProgram (GLuint program); | ||
|  | GLAPI void APIENTRY glDeleteShader (GLuint shader); | ||
|  | GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader); | ||
|  | GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index); | ||
|  | GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index); | ||
|  | GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name); | ||
|  | GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params); | ||
|  | GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsizei *length, GLchar *infoLog); | ||
|  | GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params); | ||
|  | GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog); | ||
|  | GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name); | ||
|  | GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params); | ||
|  | GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer); | ||
|  | GLAPI void APIENTRY glLinkProgram (GLuint program); | ||
|  | GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length); | ||
|  | GLAPI void APIENTRY glUseProgram (GLuint program); | ||
|  | GLAPI void APIENTRY glUniform1i (GLint location, GLint v0); | ||
|  | GLAPI void APIENTRY glUniformMatrix4fv (GLint location, GLsizei count, GLboolean transpose, const GLfloat *value); | ||
|  | GLAPI void APIENTRY glVertexAttribPointer (GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void *pointer); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_2_0 */
 | ||
|  | #ifndef GL_VERSION_3_0
 | ||
|  | typedef khronos_uint16_t GLhalf; | ||
|  | #define GL_MAJOR_VERSION                  0x821B
 | ||
|  | #define GL_MINOR_VERSION                  0x821C
 | ||
|  | #define GL_NUM_EXTENSIONS                 0x821D
 | ||
|  | #define GL_FRAMEBUFFER_SRGB               0x8DB9
 | ||
|  | #define GL_VERTEX_ARRAY_BINDING           0x85B5
 | ||
|  | typedef void (APIENTRYP PFNGLGETBOOLEANI_VPROC) (GLenum target, GLuint index, GLboolean *data); | ||
|  | typedef void (APIENTRYP PFNGLGETINTEGERI_VPROC) (GLenum target, GLuint index, GLint *data); | ||
|  | typedef const GLubyte *(APIENTRYP PFNGLGETSTRINGIPROC) (GLenum name, GLuint index); | ||
|  | typedef void (APIENTRYP PFNGLBINDVERTEXARRAYPROC) (GLuint array); | ||
|  | typedef void (APIENTRYP PFNGLDELETEVERTEXARRAYSPROC) (GLsizei n, const GLuint *arrays); | ||
|  | typedef void (APIENTRYP PFNGLGENVERTEXARRAYSPROC) (GLsizei n, GLuint *arrays); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI const GLubyte *APIENTRY glGetStringi (GLenum name, GLuint index); | ||
|  | GLAPI void APIENTRY glBindVertexArray (GLuint array); | ||
|  | GLAPI void APIENTRY glDeleteVertexArrays (GLsizei n, const GLuint *arrays); | ||
|  | GLAPI void APIENTRY glGenVertexArrays (GLsizei n, GLuint *arrays); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_3_0 */
 | ||
|  | #ifndef GL_VERSION_3_1
 | ||
|  | #define GL_VERSION_3_1 1
 | ||
|  | #define GL_PRIMITIVE_RESTART              0x8F9D
 | ||
|  | #endif /* GL_VERSION_3_1 */
 | ||
|  | #ifndef GL_VERSION_3_2
 | ||
|  | #define GL_VERSION_3_2 1
 | ||
|  | typedef struct __GLsync *GLsync; | ||
|  | typedef khronos_uint64_t GLuint64; | ||
|  | typedef khronos_int64_t GLint64; | ||
|  | typedef void (APIENTRYP PFNGLDRAWELEMENTSBASEVERTEXPROC) (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); | ||
|  | typedef void (APIENTRYP PFNGLGETINTEGER64I_VPROC) (GLenum target, GLuint index, GLint64 *data); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glDrawElementsBaseVertex (GLenum mode, GLsizei count, GLenum type, const void *indices, GLint basevertex); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_3_2 */
 | ||
|  | #ifndef GL_VERSION_3_3
 | ||
|  | #define GL_VERSION_3_3 1
 | ||
|  | #define GL_SAMPLER_BINDING                0x8919
 | ||
|  | typedef void (APIENTRYP PFNGLBINDSAMPLERPROC) (GLuint unit, GLuint sampler); | ||
|  | #ifdef GL_GLEXT_PROTOTYPES
 | ||
|  | GLAPI void APIENTRY glBindSampler (GLuint unit, GLuint sampler); | ||
|  | #endif
 | ||
|  | #endif /* GL_VERSION_3_3 */
 | ||
|  | #ifndef GL_VERSION_4_1
 | ||
|  | typedef void (APIENTRYP PFNGLGETFLOATI_VPROC) (GLenum target, GLuint index, GLfloat *data); | ||
|  | typedef void (APIENTRYP PFNGLGETDOUBLEI_VPROC) (GLenum target, GLuint index, GLdouble *data); | ||
|  | #endif /* GL_VERSION_4_1 */
 | ||
|  | #ifndef GL_VERSION_4_3
 | ||
|  | typedef void (APIENTRY  *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); | ||
|  | #endif /* GL_VERSION_4_3 */
 | ||
|  | #ifndef GL_VERSION_4_5
 | ||
|  | #define GL_CLIP_ORIGIN                    0x935C
 | ||
|  | typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint *param); | ||
|  | typedef void (APIENTRYP PFNGLGETTRANSFORMFEEDBACKI64_VPROC) (GLuint xfb, GLenum pname, GLuint index, GLint64 *param); | ||
|  | #endif /* GL_VERSION_4_5 */
 | ||
|  | #ifndef GL_ARB_bindless_texture
 | ||
|  | typedef khronos_uint64_t GLuint64EXT; | ||
|  | #endif /* GL_ARB_bindless_texture */
 | ||
|  | #ifndef GL_ARB_cl_event
 | ||
|  | struct _cl_context; | ||
|  | struct _cl_event; | ||
|  | #endif /* GL_ARB_cl_event */
 | ||
|  | #ifndef GL_ARB_clip_control
 | ||
|  | #define GL_ARB_clip_control 1
 | ||
|  | #endif /* GL_ARB_clip_control */
 | ||
|  | #ifndef GL_ARB_debug_output
 | ||
|  | typedef void (APIENTRY  *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,const void *userParam); | ||
|  | #endif /* GL_ARB_debug_output */
 | ||
|  | #ifndef GL_EXT_EGL_image_storage
 | ||
|  | typedef void *GLeglImageOES; | ||
|  | #endif /* GL_EXT_EGL_image_storage */
 | ||
|  | #ifndef GL_EXT_direct_state_access
 | ||
|  | typedef void (APIENTRYP PFNGLGETFLOATI_VEXTPROC) (GLenum pname, GLuint index, GLfloat *params); | ||
|  | typedef void (APIENTRYP PFNGLGETDOUBLEI_VEXTPROC) (GLenum pname, GLuint index, GLdouble *params); | ||
|  | typedef void (APIENTRYP PFNGLGETPOINTERI_VEXTPROC) (GLenum pname, GLuint index, void **params); | ||
|  | typedef void (APIENTRYP PFNGLGETVERTEXARRAYINTEGERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, GLint *param); | ||
|  | typedef void (APIENTRYP PFNGLGETVERTEXARRAYPOINTERI_VEXTPROC) (GLuint vaobj, GLuint index, GLenum pname, void **param); | ||
|  | #endif /* GL_EXT_direct_state_access */
 | ||
|  | #ifndef GL_NV_draw_vulkan_image
 | ||
|  | typedef void (APIENTRY  *GLVULKANPROCNV)(void); | ||
|  | #endif /* GL_NV_draw_vulkan_image */
 | ||
|  | #ifndef GL_NV_gpu_shader5
 | ||
|  | typedef khronos_int64_t GLint64EXT; | ||
|  | #endif /* GL_NV_gpu_shader5 */
 | ||
|  | #ifndef GL_NV_vertex_buffer_unified_memory
 | ||
|  | typedef void (APIENTRYP PFNGLGETINTEGERUI64I_VNVPROC) (GLenum value, GLuint index, GLuint64EXT *result); | ||
|  | #endif /* GL_NV_vertex_buffer_unified_memory */
 | ||
|  | #ifdef __cplusplus
 | ||
|  | } | ||
|  | #endif
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #ifndef GL3W_API
 | ||
|  | #define GL3W_API
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #ifndef __gl_h_
 | ||
|  | #define __gl_h_
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #ifdef __cplusplus
 | ||
|  | extern "C" { | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #define GL3W_OK 0
 | ||
|  | #define GL3W_ERROR_INIT -1
 | ||
|  | #define GL3W_ERROR_LIBRARY_OPEN -2
 | ||
|  | #define GL3W_ERROR_OPENGL_VERSION -3
 | ||
|  | 
 | ||
|  | typedef void (*GL3WglProc)(void); | ||
|  | typedef GL3WglProc (*GL3WGetProcAddressProc)(const char *proc); | ||
|  | 
 | ||
|  | /* gl3w api */ | ||
|  | GL3W_API int imgl3wInit(void); | ||
|  | GL3W_API int imgl3wInit2(GL3WGetProcAddressProc proc); | ||
|  | GL3W_API int imgl3wIsSupported(int major, int minor); | ||
|  | GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc); | ||
|  | 
 | ||
|  | /* gl3w internal state */ | ||
|  | union GL3WProcs { | ||
|  |     GL3WglProc ptr[58]; | ||
|  |     struct { | ||
|  |         PFNGLACTIVETEXTUREPROC            ActiveTexture; | ||
|  |         PFNGLATTACHSHADERPROC             AttachShader; | ||
|  |         PFNGLBINDBUFFERPROC               BindBuffer; | ||
|  |         PFNGLBINDSAMPLERPROC              BindSampler; | ||
|  |         PFNGLBINDTEXTUREPROC              BindTexture; | ||
|  |         PFNGLBINDVERTEXARRAYPROC          BindVertexArray; | ||
|  |         PFNGLBLENDEQUATIONPROC            BlendEquation; | ||
|  |         PFNGLBLENDEQUATIONSEPARATEPROC    BlendEquationSeparate; | ||
|  |         PFNGLBLENDFUNCSEPARATEPROC        BlendFuncSeparate; | ||
|  |         PFNGLBUFFERDATAPROC               BufferData; | ||
|  |         PFNGLBUFFERSUBDATAPROC            BufferSubData; | ||
|  |         PFNGLCLEARPROC                    Clear; | ||
|  |         PFNGLCLEARCOLORPROC               ClearColor; | ||
|  |         PFNGLCOMPILESHADERPROC            CompileShader; | ||
|  |         PFNGLCREATEPROGRAMPROC            CreateProgram; | ||
|  |         PFNGLCREATESHADERPROC             CreateShader; | ||
|  |         PFNGLDELETEBUFFERSPROC            DeleteBuffers; | ||
|  |         PFNGLDELETEPROGRAMPROC            DeleteProgram; | ||
|  |         PFNGLDELETESHADERPROC             DeleteShader; | ||
|  |         PFNGLDELETETEXTURESPROC           DeleteTextures; | ||
|  |         PFNGLDELETEVERTEXARRAYSPROC       DeleteVertexArrays; | ||
|  |         PFNGLDETACHSHADERPROC             DetachShader; | ||
|  |         PFNGLDISABLEPROC                  Disable; | ||
|  |         PFNGLDISABLEVERTEXATTRIBARRAYPROC DisableVertexAttribArray; | ||
|  |         PFNGLDRAWELEMENTSPROC             DrawElements; | ||
|  |         PFNGLDRAWELEMENTSBASEVERTEXPROC   DrawElementsBaseVertex; | ||
|  |         PFNGLENABLEPROC                   Enable; | ||
|  |         PFNGLENABLEVERTEXATTRIBARRAYPROC  EnableVertexAttribArray; | ||
|  |         PFNGLFLUSHPROC                    Flush; | ||
|  |         PFNGLGENBUFFERSPROC               GenBuffers; | ||
|  |         PFNGLGENTEXTURESPROC              GenTextures; | ||
|  |         PFNGLGENVERTEXARRAYSPROC          GenVertexArrays; | ||
|  |         PFNGLGETATTRIBLOCATIONPROC        GetAttribLocation; | ||
|  |         PFNGLGETERRORPROC                 GetError; | ||
|  |         PFNGLGETINTEGERVPROC              GetIntegerv; | ||
|  |         PFNGLGETPROGRAMINFOLOGPROC        GetProgramInfoLog; | ||
|  |         PFNGLGETPROGRAMIVPROC             GetProgramiv; | ||
|  |         PFNGLGETSHADERINFOLOGPROC         GetShaderInfoLog; | ||
|  |         PFNGLGETSHADERIVPROC              GetShaderiv; | ||
|  |         PFNGLGETSTRINGPROC                GetString; | ||
|  |         PFNGLGETSTRINGIPROC               GetStringi; | ||
|  |         PFNGLGETUNIFORMLOCATIONPROC       GetUniformLocation; | ||
|  |         PFNGLGETVERTEXATTRIBPOINTERVPROC  GetVertexAttribPointerv; | ||
|  |         PFNGLGETVERTEXATTRIBIVPROC        GetVertexAttribiv; | ||
|  |         PFNGLISENABLEDPROC                IsEnabled; | ||
|  |         PFNGLLINKPROGRAMPROC              LinkProgram; | ||
|  |         PFNGLPIXELSTOREIPROC              PixelStorei; | ||
|  |         PFNGLPOLYGONMODEPROC              PolygonMode; | ||
|  |         PFNGLREADPIXELSPROC               ReadPixels; | ||
|  |         PFNGLSCISSORPROC                  Scissor; | ||
|  |         PFNGLSHADERSOURCEPROC             ShaderSource; | ||
|  |         PFNGLTEXIMAGE2DPROC               TexImage2D; | ||
|  |         PFNGLTEXPARAMETERIPROC            TexParameteri; | ||
|  |         PFNGLUNIFORM1IPROC                Uniform1i; | ||
|  |         PFNGLUNIFORMMATRIX4FVPROC         UniformMatrix4fv; | ||
|  |         PFNGLUSEPROGRAMPROC               UseProgram; | ||
|  |         PFNGLVERTEXATTRIBPOINTERPROC      VertexAttribPointer; | ||
|  |         PFNGLVIEWPORTPROC                 Viewport; | ||
|  |     } gl; | ||
|  | }; | ||
|  | 
 | ||
|  | GL3W_API extern union GL3WProcs imgl3wProcs; | ||
|  | 
 | ||
|  | /* OpenGL functions */ | ||
|  | #define glActiveTexture                   imgl3wProcs.gl.ActiveTexture
 | ||
|  | #define glAttachShader                    imgl3wProcs.gl.AttachShader
 | ||
|  | #define glBindBuffer                      imgl3wProcs.gl.BindBuffer
 | ||
|  | #define glBindSampler                     imgl3wProcs.gl.BindSampler
 | ||
|  | #define glBindTexture                     imgl3wProcs.gl.BindTexture
 | ||
|  | #define glBindVertexArray                 imgl3wProcs.gl.BindVertexArray
 | ||
|  | #define glBlendEquation                   imgl3wProcs.gl.BlendEquation
 | ||
|  | #define glBlendEquationSeparate           imgl3wProcs.gl.BlendEquationSeparate
 | ||
|  | #define glBlendFuncSeparate               imgl3wProcs.gl.BlendFuncSeparate
 | ||
|  | #define glBufferData                      imgl3wProcs.gl.BufferData
 | ||
|  | #define glBufferSubData                   imgl3wProcs.gl.BufferSubData
 | ||
|  | #define glClear                           imgl3wProcs.gl.Clear
 | ||
|  | #define glClearColor                      imgl3wProcs.gl.ClearColor
 | ||
|  | #define glCompileShader                   imgl3wProcs.gl.CompileShader
 | ||
|  | #define glCreateProgram                   imgl3wProcs.gl.CreateProgram
 | ||
|  | #define glCreateShader                    imgl3wProcs.gl.CreateShader
 | ||
|  | #define glDeleteBuffers                   imgl3wProcs.gl.DeleteBuffers
 | ||
|  | #define glDeleteProgram                   imgl3wProcs.gl.DeleteProgram
 | ||
|  | #define glDeleteShader                    imgl3wProcs.gl.DeleteShader
 | ||
|  | #define glDeleteTextures                  imgl3wProcs.gl.DeleteTextures
 | ||
|  | #define glDeleteVertexArrays              imgl3wProcs.gl.DeleteVertexArrays
 | ||
|  | #define glDetachShader                    imgl3wProcs.gl.DetachShader
 | ||
|  | #define glDisable                         imgl3wProcs.gl.Disable
 | ||
|  | #define glDisableVertexAttribArray        imgl3wProcs.gl.DisableVertexAttribArray
 | ||
|  | #define glDrawElements                    imgl3wProcs.gl.DrawElements
 | ||
|  | #define glDrawElementsBaseVertex          imgl3wProcs.gl.DrawElementsBaseVertex
 | ||
|  | #define glEnable                          imgl3wProcs.gl.Enable
 | ||
|  | #define glEnableVertexAttribArray         imgl3wProcs.gl.EnableVertexAttribArray
 | ||
|  | #define glFlush                           imgl3wProcs.gl.Flush
 | ||
|  | #define glGenBuffers                      imgl3wProcs.gl.GenBuffers
 | ||
|  | #define glGenTextures                     imgl3wProcs.gl.GenTextures
 | ||
|  | #define glGenVertexArrays                 imgl3wProcs.gl.GenVertexArrays
 | ||
|  | #define glGetAttribLocation               imgl3wProcs.gl.GetAttribLocation
 | ||
|  | #define glGetError                        imgl3wProcs.gl.GetError
 | ||
|  | #define glGetIntegerv                     imgl3wProcs.gl.GetIntegerv
 | ||
|  | #define glGetProgramInfoLog               imgl3wProcs.gl.GetProgramInfoLog
 | ||
|  | #define glGetProgramiv                    imgl3wProcs.gl.GetProgramiv
 | ||
|  | #define glGetShaderInfoLog                imgl3wProcs.gl.GetShaderInfoLog
 | ||
|  | #define glGetShaderiv                     imgl3wProcs.gl.GetShaderiv
 | ||
|  | #define glGetString                       imgl3wProcs.gl.GetString
 | ||
|  | #define glGetStringi                      imgl3wProcs.gl.GetStringi
 | ||
|  | #define glGetUniformLocation              imgl3wProcs.gl.GetUniformLocation
 | ||
|  | #define glGetVertexAttribPointerv         imgl3wProcs.gl.GetVertexAttribPointerv
 | ||
|  | #define glGetVertexAttribiv               imgl3wProcs.gl.GetVertexAttribiv
 | ||
|  | #define glIsEnabled                       imgl3wProcs.gl.IsEnabled
 | ||
|  | #define glLinkProgram                     imgl3wProcs.gl.LinkProgram
 | ||
|  | #define glPixelStorei                     imgl3wProcs.gl.PixelStorei
 | ||
|  | #define glPolygonMode                     imgl3wProcs.gl.PolygonMode
 | ||
|  | #define glReadPixels                      imgl3wProcs.gl.ReadPixels
 | ||
|  | #define glScissor                         imgl3wProcs.gl.Scissor
 | ||
|  | #define glShaderSource                    imgl3wProcs.gl.ShaderSource
 | ||
|  | #define glTexImage2D                      imgl3wProcs.gl.TexImage2D
 | ||
|  | #define glTexParameteri                   imgl3wProcs.gl.TexParameteri
 | ||
|  | #define glUniform1i                       imgl3wProcs.gl.Uniform1i
 | ||
|  | #define glUniformMatrix4fv                imgl3wProcs.gl.UniformMatrix4fv
 | ||
|  | #define glUseProgram                      imgl3wProcs.gl.UseProgram
 | ||
|  | #define glVertexAttribPointer             imgl3wProcs.gl.VertexAttribPointer
 | ||
|  | #define glViewport                        imgl3wProcs.gl.Viewport
 | ||
|  | 
 | ||
|  | #ifdef __cplusplus
 | ||
|  | } | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #ifdef IMGL3W_IMPL
 | ||
|  | #ifdef __cplusplus
 | ||
|  | extern "C" { | ||
|  | #endif
 | ||
|  | 
 | ||
|  | #include <stdlib.h>
 | ||
|  | 
 | ||
|  | #define ARRAY_SIZE(x)  (sizeof(x) / sizeof((x)[0]))
 | ||
|  | 
 | ||
|  | #if defined(_WIN32)
 | ||
|  | #ifndef WIN32_LEAN_AND_MEAN
 | ||
|  | #define WIN32_LEAN_AND_MEAN 1
 | ||
|  | #endif
 | ||
|  | #include <windows.h>
 | ||
|  | 
 | ||
|  | static HMODULE libgl; | ||
|  | typedef PROC(__stdcall* GL3WglGetProcAddr)(LPCSTR); | ||
|  | static GL3WglGetProcAddr wgl_get_proc_address; | ||
|  | 
 | ||
|  | static int open_libgl(void) | ||
|  | { | ||
|  |     libgl = LoadLibraryA("opengl32.dll"); | ||
|  |     if (!libgl) | ||
|  |         return GL3W_ERROR_LIBRARY_OPEN; | ||
|  |     wgl_get_proc_address = (GL3WglGetProcAddr)GetProcAddress(libgl, "wglGetProcAddress"); | ||
|  |     return GL3W_OK; | ||
|  | } | ||
|  | 
 | ||
|  | static void close_libgl(void) { FreeLibrary(libgl); } | ||
|  | static GL3WglProc get_proc(const char *proc) | ||
|  | { | ||
|  |     GL3WglProc res; | ||
|  |     res = (GL3WglProc)wgl_get_proc_address(proc); | ||
|  |     if (!res) | ||
|  |         res = (GL3WglProc)GetProcAddress(libgl, proc); | ||
|  |     return res; | ||
|  | } | ||
|  | #elif defined(__APPLE__)
 | ||
|  | #include <dlfcn.h>
 | ||
|  | 
 | ||
|  | static void *libgl; | ||
|  | static int open_libgl(void) | ||
|  | { | ||
|  |     libgl = dlopen("/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_LOCAL); | ||
|  |     if (!libgl) | ||
|  |         return GL3W_ERROR_LIBRARY_OPEN; | ||
|  |     return GL3W_OK; | ||
|  | } | ||
|  | 
 | ||
|  | static void close_libgl(void) { dlclose(libgl); } | ||
|  | 
 | ||
|  | static GL3WglProc get_proc(const char *proc) | ||
|  | { | ||
|  |     GL3WglProc res; | ||
|  |     *(void **)(&res) = dlsym(libgl, proc); | ||
|  |     return res; | ||
|  | } | ||
|  | #else
 | ||
|  | #include <dlfcn.h>
 | ||
|  | 
 | ||
|  | static void *libgl; | ||
|  | static GL3WglProc (*glx_get_proc_address)(const GLubyte *); | ||
|  | 
 | ||
|  | static int open_libgl(void) | ||
|  | { | ||
|  |     libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL); | ||
|  |     if (!libgl) | ||
|  |         return GL3W_ERROR_LIBRARY_OPEN; | ||
|  |     *(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB"); | ||
|  |     return GL3W_OK; | ||
|  | } | ||
|  | 
 | ||
|  | static void close_libgl(void) { dlclose(libgl); } | ||
|  | 
 | ||
|  | static GL3WglProc get_proc(const char *proc) | ||
|  | { | ||
|  |     GL3WglProc res; | ||
|  |     res = glx_get_proc_address((const GLubyte *)proc); | ||
|  |     if (!res) | ||
|  |         *(void **)(&res) = dlsym(libgl, proc); | ||
|  |     return res; | ||
|  | } | ||
|  | #endif
 | ||
|  | 
 | ||
|  | static struct { int major, minor; } version; | ||
|  | 
 | ||
|  | static int parse_version(void) | ||
|  | { | ||
|  |     if (!glGetIntegerv) | ||
|  |         return GL3W_ERROR_INIT; | ||
|  |     glGetIntegerv(GL_MAJOR_VERSION, &version.major); | ||
|  |     glGetIntegerv(GL_MINOR_VERSION, &version.minor); | ||
|  |     if (version.major < 3) | ||
|  |         return GL3W_ERROR_OPENGL_VERSION; | ||
|  |     return GL3W_OK; | ||
|  | } | ||
|  | 
 | ||
|  | static void load_procs(GL3WGetProcAddressProc proc); | ||
|  | 
 | ||
|  | int imgl3wInit(void) | ||
|  | { | ||
|  |     int res = open_libgl(); | ||
|  |     if (res) | ||
|  |         return res; | ||
|  |     atexit(close_libgl); | ||
|  |     return imgl3wInit2(get_proc); | ||
|  | } | ||
|  | 
 | ||
|  | int imgl3wInit2(GL3WGetProcAddressProc proc) | ||
|  | { | ||
|  |     load_procs(proc); | ||
|  |     return parse_version(); | ||
|  | } | ||
|  | 
 | ||
|  | int imgl3wIsSupported(int major, int minor) | ||
|  | { | ||
|  |     if (major < 3) | ||
|  |         return 0; | ||
|  |     if (version.major == major) | ||
|  |         return version.minor >= minor; | ||
|  |     return version.major >= major; | ||
|  | } | ||
|  | 
 | ||
|  | GL3WglProc imgl3wGetProcAddress(const char *proc) { return get_proc(proc); } | ||
|  | 
 | ||
|  | static const char *proc_names[] = { | ||
|  |     "glActiveTexture", | ||
|  |     "glAttachShader", | ||
|  |     "glBindBuffer", | ||
|  |     "glBindSampler", | ||
|  |     "glBindTexture", | ||
|  |     "glBindVertexArray", | ||
|  |     "glBlendEquation", | ||
|  |     "glBlendEquationSeparate", | ||
|  |     "glBlendFuncSeparate", | ||
|  |     "glBufferData", | ||
|  |     "glBufferSubData", | ||
|  |     "glClear", | ||
|  |     "glClearColor", | ||
|  |     "glCompileShader", | ||
|  |     "glCreateProgram", | ||
|  |     "glCreateShader", | ||
|  |     "glDeleteBuffers", | ||
|  |     "glDeleteProgram", | ||
|  |     "glDeleteShader", | ||
|  |     "glDeleteTextures", | ||
|  |     "glDeleteVertexArrays", | ||
|  |     "glDetachShader", | ||
|  |     "glDisable", | ||
|  |     "glDisableVertexAttribArray", | ||
|  |     "glDrawElements", | ||
|  |     "glDrawElementsBaseVertex", | ||
|  |     "glEnable", | ||
|  |     "glEnableVertexAttribArray", | ||
|  |     "glFlush", | ||
|  |     "glGenBuffers", | ||
|  |     "glGenTextures", | ||
|  |     "glGenVertexArrays", | ||
|  |     "glGetAttribLocation", | ||
|  |     "glGetError", | ||
|  |     "glGetIntegerv", | ||
|  |     "glGetProgramInfoLog", | ||
|  |     "glGetProgramiv", | ||
|  |     "glGetShaderInfoLog", | ||
|  |     "glGetShaderiv", | ||
|  |     "glGetString", | ||
|  |     "glGetStringi", | ||
|  |     "glGetUniformLocation", | ||
|  |     "glGetVertexAttribPointerv", | ||
|  |     "glGetVertexAttribiv", | ||
|  |     "glIsEnabled", | ||
|  |     "glLinkProgram", | ||
|  |     "glPixelStorei", | ||
|  |     "glPolygonMode", | ||
|  |     "glReadPixels", | ||
|  |     "glScissor", | ||
|  |     "glShaderSource", | ||
|  |     "glTexImage2D", | ||
|  |     "glTexParameteri", | ||
|  |     "glUniform1i", | ||
|  |     "glUniformMatrix4fv", | ||
|  |     "glUseProgram", | ||
|  |     "glVertexAttribPointer", | ||
|  |     "glViewport", | ||
|  | }; | ||
|  | 
 | ||
|  | GL3W_API union GL3WProcs imgl3wProcs; | ||
|  | 
 | ||
|  | static void load_procs(GL3WGetProcAddressProc proc) | ||
|  | { | ||
|  |     size_t i; | ||
|  |     for (i = 0; i < ARRAY_SIZE(proc_names); i++) | ||
|  |         imgl3wProcs.ptr[i] = proc(proc_names[i]); | ||
|  | } | ||
|  | 
 | ||
|  | #ifdef __cplusplus
 | ||
|  | } | ||
|  | #endif
 | ||
|  | #endif
 |