| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 1 | /** |
| 2 | * Utility for getting OpenGL extension function pointers |
| 3 | * Meant to be #included. |
| 4 | */ |
| 5 | |
| 6 | /* OpenGL 2.0 */ |
| 7 | static PFNGLATTACHSHADERPROC glAttachShader_func = NULL; |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 8 | static PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation_func = NULL; |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 9 | static PFNGLCOMPILESHADERPROC glCompileShader_func = NULL; |
| 10 | static PFNGLCREATEPROGRAMPROC glCreateProgram_func = NULL; |
| 11 | static PFNGLCREATESHADERPROC glCreateShader_func = NULL; |
| 12 | static PFNGLDELETEPROGRAMPROC glDeleteProgram_func = NULL; |
| 13 | static PFNGLDELETESHADERPROC glDeleteShader_func = NULL; |
| 14 | static PFNGLGETATTACHEDSHADERSPROC glGetAttachedShaders_func = NULL; |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 15 | static PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation_func = NULL; |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 16 | static PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog_func = NULL; |
| 17 | static PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog_func = NULL; |
| 18 | static PFNGLGETSHADERIVPROC glGetShaderiv_func = NULL; |
| 19 | static PFNGLGETPROGRAMIVPROC glGetProgramiv_func = NULL; |
| 20 | static PFNGLGETSHADERSOURCEPROC glGetShaderSource_func = NULL; |
| 21 | static PFNGLGETUNIFORMFVPROC glGetUniformfv_func = NULL; |
| 22 | static PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation_func = NULL; |
| 23 | static PFNGLISPROGRAMPROC glIsProgram_func = NULL; |
| 24 | static PFNGLISSHADERPROC glIsShader_func = NULL; |
| 25 | static PFNGLLINKPROGRAMPROC glLinkProgram_func = NULL; |
| 26 | static PFNGLSHADERSOURCEPROC glShaderSource_func = NULL; |
| Brian | 7b4d10b | 2007-01-04 14:40:56 -0700 | [diff] [blame] | 27 | static PFNGLUNIFORM1IPROC glUniform1i_func = NULL; |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 28 | static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL; |
| Brian | 7b4d10b | 2007-01-04 14:40:56 -0700 | [diff] [blame] | 29 | static PFNGLUNIFORM4FVPROC glUniform4fv_func = NULL; |
| Brian | 1ff1e89 | 2006-12-20 17:56:29 -0700 | [diff] [blame] | 30 | static PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv_func = NULL; |
| 31 | static PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv_func = NULL; |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 32 | static PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_func = NULL; |
| 33 | static PFNGLUSEPROGRAMPROC glUseProgram_func = NULL; |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 34 | static PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f_func = NULL; |
| 35 | |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 36 | |
| 37 | /* GL_ARB_vertex/fragment_program */ |
| 38 | static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL; |
| 39 | static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL; |
| 40 | static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func = NULL; |
| 41 | static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func = NULL; |
| 42 | static PFNGLISPROGRAMARBPROC glIsProgramARB_func = NULL; |
| 43 | static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func = NULL; |
| 44 | static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func = NULL; |
| 45 | static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func = NULL; |
| 46 | static PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB_func = NULL; |
| 47 | |
| 48 | /* GL_APPLE_vertex_array_object */ |
| 49 | static PFNGLBINDVERTEXARRAYAPPLEPROC glBindVertexArrayAPPLE_func = NULL; |
| 50 | static PFNGLDELETEVERTEXARRAYSAPPLEPROC glDeleteVertexArraysAPPLE_func = NULL; |
| 51 | static PFNGLGENVERTEXARRAYSAPPLEPROC glGenVertexArraysAPPLE_func = NULL; |
| 52 | static PFNGLISVERTEXARRAYAPPLEPROC glIsVertexArrayAPPLE_func = NULL; |
| 53 | |
| 54 | |
| 55 | |
| 56 | static void |
| 57 | GetExtensionFuncs(void) |
| 58 | { |
| 59 | /* OpenGL 2.0 */ |
| 60 | glAttachShader_func = (PFNGLATTACHSHADERPROC) glutGetProcAddress("glAttachShader"); |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 61 | glBindAttribLocation_func = (PFNGLBINDATTRIBLOCATIONPROC) glutGetProcAddress("glBindAttribLocation"); |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 62 | glCompileShader_func = (PFNGLCOMPILESHADERPROC) glutGetProcAddress("glCompileShader"); |
| 63 | glCreateProgram_func = (PFNGLCREATEPROGRAMPROC) glutGetProcAddress("glCreateProgram"); |
| 64 | glCreateShader_func = (PFNGLCREATESHADERPROC) glutGetProcAddress("glCreateShader"); |
| 65 | glDeleteProgram_func = (PFNGLDELETEPROGRAMPROC) glutGetProcAddress("glDeleteProgram"); |
| 66 | glDeleteShader_func = (PFNGLDELETESHADERPROC) glutGetProcAddress("glDeleteShader"); |
| 67 | glGetAttachedShaders_func = (PFNGLGETATTACHEDSHADERSPROC) glutGetProcAddress("glGetAttachedShaders"); |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 68 | glGetAttribLocation_func = (PFNGLGETATTRIBLOCATIONPROC) glutGetProcAddress("glGetAttribLocation"); |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 69 | glGetProgramInfoLog_func = (PFNGLGETPROGRAMINFOLOGPROC) glutGetProcAddress("glGetProgramInfoLog"); |
| 70 | glGetShaderInfoLog_func = (PFNGLGETSHADERINFOLOGPROC) glutGetProcAddress("glGetShaderInfoLog"); |
| 71 | glGetProgramiv_func = (PFNGLGETPROGRAMIVPROC) glutGetProcAddress("glGetProgramiv"); |
| 72 | glGetShaderiv_func = (PFNGLGETSHADERIVPROC) glutGetProcAddress("glGetShaderiv"); |
| 73 | glGetShaderSource_func = (PFNGLGETSHADERSOURCEPROC) glutGetProcAddress("glGetShaderSource"); |
| 74 | glGetUniformLocation_func = (PFNGLGETUNIFORMLOCATIONPROC) glutGetProcAddress("glGetUniformLocation"); |
| 75 | glGetUniformfv_func = (PFNGLGETUNIFORMFVPROC) glutGetProcAddress("glGetUniformfv"); |
| 76 | glIsProgram_func = (PFNGLISPROGRAMPROC) glutGetProcAddress("glIsProgram"); |
| 77 | glIsShader_func = (PFNGLISSHADERPROC) glutGetProcAddress("glIsShader"); |
| 78 | glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram"); |
| 79 | glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource"); |
| Brian | 7b4d10b | 2007-01-04 14:40:56 -0700 | [diff] [blame] | 80 | glUniform1i_func = (PFNGLUNIFORM1IPROC) glutGetProcAddress("glUniform1i"); |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 81 | glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv"); |
| 82 | glUniform4fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform4fv"); |
| Brian | 1ff1e89 | 2006-12-20 17:56:29 -0700 | [diff] [blame] | 83 | glUniformMatrix2fv_func = (PFNGLUNIFORMMATRIX2FVPROC) glutGetProcAddress("glUniformMatrix2fv"); |
| 84 | glUniformMatrix3fv_func = (PFNGLUNIFORMMATRIX3FVPROC) glutGetProcAddress("glUniformMatrix3fv"); |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 85 | glUniformMatrix4fv_func = (PFNGLUNIFORMMATRIX4FVPROC) glutGetProcAddress("glUniformMatrix4fv"); |
| 86 | glUseProgram_func = (PFNGLUSEPROGRAMPROC) glutGetProcAddress("glUseProgram"); |
| Brian | cc858bf | 2007-01-09 17:49:53 -0700 | [diff] [blame] | 87 | glVertexAttrib2f_func = (PFNGLVERTEXATTRIB2FPROC) glutGetProcAddress("glVertexAttrib2f"); |
| 88 | |
| Brian | e55b771 | 2006-12-15 09:30:31 -0700 | [diff] [blame] | 89 | |
| 90 | /* GL_ARB_vertex/fragment_program */ |
| 91 | glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB"); |
| 92 | glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB"); |
| 93 | glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB"); |
| 94 | glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB"); |
| 95 | glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB"); |
| 96 | glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB"); |
| 97 | glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB"); |
| 98 | glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB"); |
| 99 | glVertexAttrib1fARB_func = (PFNGLVERTEXATTRIB1FARBPROC) glutGetProcAddress("glVertexAttrib1fARB"); |
| 100 | |
| 101 | /* GL_APPLE_vertex_array_object */ |
| 102 | glBindVertexArrayAPPLE_func = (PFNGLBINDVERTEXARRAYAPPLEPROC) glutGetProcAddress("glBindVertexArrayAPPLE"); |
| 103 | glDeleteVertexArraysAPPLE_func = (PFNGLDELETEVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glDeleteVertexArraysAPPLE"); |
| 104 | glGenVertexArraysAPPLE_func = (PFNGLGENVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glGenVertexArraysAPPLE"); |
| 105 | glIsVertexArrayAPPLE_func = (PFNGLISVERTEXARRAYAPPLEPROC) glutGetProcAddress("glIsVertexArrayAPPLE"); |
| 106 | |
| 107 | } |
| 108 | |