| 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; |
| 8 | static PFNGLCOMPILESHADERPROC glCompileShader_func = NULL; |
| 9 | static PFNGLCREATEPROGRAMPROC glCreateProgram_func = NULL; |
| 10 | static PFNGLCREATESHADERPROC glCreateShader_func = NULL; |
| 11 | static PFNGLDELETEPROGRAMPROC glDeleteProgram_func = NULL; |
| 12 | static PFNGLDELETESHADERPROC glDeleteShader_func = NULL; |
| 13 | static PFNGLGETATTACHEDSHADERSPROC glGetAttachedShaders_func = NULL; |
| 14 | static PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog_func = NULL; |
| 15 | static PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog_func = NULL; |
| 16 | static PFNGLGETSHADERIVPROC glGetShaderiv_func = NULL; |
| 17 | static PFNGLGETPROGRAMIVPROC glGetProgramiv_func = NULL; |
| 18 | static PFNGLGETSHADERSOURCEPROC glGetShaderSource_func = NULL; |
| 19 | static PFNGLGETUNIFORMFVPROC glGetUniformfv_func = NULL; |
| 20 | static PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation_func = NULL; |
| 21 | static PFNGLISPROGRAMPROC glIsProgram_func = NULL; |
| 22 | static PFNGLISSHADERPROC glIsShader_func = NULL; |
| 23 | static PFNGLLINKPROGRAMPROC glLinkProgram_func = NULL; |
| 24 | static PFNGLSHADERSOURCEPROC glShaderSource_func = NULL; |
| 25 | static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL; |
| 26 | static PFNGLUNIFORM3FVPROC glUniform4fv_func = NULL; |
| 27 | static PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_func = NULL; |
| 28 | static PFNGLUSEPROGRAMPROC glUseProgram_func = NULL; |
| 29 | |
| 30 | /* GL_ARB_vertex/fragment_program */ |
| 31 | static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL; |
| 32 | static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL; |
| 33 | static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func = NULL; |
| 34 | static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func = NULL; |
| 35 | static PFNGLISPROGRAMARBPROC glIsProgramARB_func = NULL; |
| 36 | static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func = NULL; |
| 37 | static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func = NULL; |
| 38 | static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func = NULL; |
| 39 | static PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB_func = NULL; |
| 40 | |
| 41 | /* GL_APPLE_vertex_array_object */ |
| 42 | static PFNGLBINDVERTEXARRAYAPPLEPROC glBindVertexArrayAPPLE_func = NULL; |
| 43 | static PFNGLDELETEVERTEXARRAYSAPPLEPROC glDeleteVertexArraysAPPLE_func = NULL; |
| 44 | static PFNGLGENVERTEXARRAYSAPPLEPROC glGenVertexArraysAPPLE_func = NULL; |
| 45 | static PFNGLISVERTEXARRAYAPPLEPROC glIsVertexArrayAPPLE_func = NULL; |
| 46 | |
| 47 | |
| 48 | |
| 49 | static void |
| 50 | GetExtensionFuncs(void) |
| 51 | { |
| 52 | /* OpenGL 2.0 */ |
| 53 | glAttachShader_func = (PFNGLATTACHSHADERPROC) glutGetProcAddress("glAttachShader"); |
| 54 | glCompileShader_func = (PFNGLCOMPILESHADERPROC) glutGetProcAddress("glCompileShader"); |
| 55 | glCreateProgram_func = (PFNGLCREATEPROGRAMPROC) glutGetProcAddress("glCreateProgram"); |
| 56 | glCreateShader_func = (PFNGLCREATESHADERPROC) glutGetProcAddress("glCreateShader"); |
| 57 | glDeleteProgram_func = (PFNGLDELETEPROGRAMPROC) glutGetProcAddress("glDeleteProgram"); |
| 58 | glDeleteShader_func = (PFNGLDELETESHADERPROC) glutGetProcAddress("glDeleteShader"); |
| 59 | glGetAttachedShaders_func = (PFNGLGETATTACHEDSHADERSPROC) glutGetProcAddress("glGetAttachedShaders"); |
| 60 | glGetProgramInfoLog_func = (PFNGLGETPROGRAMINFOLOGPROC) glutGetProcAddress("glGetProgramInfoLog"); |
| 61 | glGetShaderInfoLog_func = (PFNGLGETSHADERINFOLOGPROC) glutGetProcAddress("glGetShaderInfoLog"); |
| 62 | glGetProgramiv_func = (PFNGLGETPROGRAMIVPROC) glutGetProcAddress("glGetProgramiv"); |
| 63 | glGetShaderiv_func = (PFNGLGETSHADERIVPROC) glutGetProcAddress("glGetShaderiv"); |
| 64 | glGetShaderSource_func = (PFNGLGETSHADERSOURCEPROC) glutGetProcAddress("glGetShaderSource"); |
| 65 | glGetUniformLocation_func = (PFNGLGETUNIFORMLOCATIONPROC) glutGetProcAddress("glGetUniformLocation"); |
| 66 | glGetUniformfv_func = (PFNGLGETUNIFORMFVPROC) glutGetProcAddress("glGetUniformfv"); |
| 67 | glIsProgram_func = (PFNGLISPROGRAMPROC) glutGetProcAddress("glIsProgram"); |
| 68 | glIsShader_func = (PFNGLISSHADERPROC) glutGetProcAddress("glIsShader"); |
| 69 | glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram"); |
| 70 | glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource"); |
| 71 | glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv"); |
| 72 | glUniform4fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform4fv"); |
| 73 | glUniformMatrix4fv_func = (PFNGLUNIFORMMATRIX4FVPROC) glutGetProcAddress("glUniformMatrix4fv"); |
| 74 | glUseProgram_func = (PFNGLUSEPROGRAMPROC) glutGetProcAddress("glUseProgram"); |
| 75 | |
| 76 | /* GL_ARB_vertex/fragment_program */ |
| 77 | glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB"); |
| 78 | glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB"); |
| 79 | glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB"); |
| 80 | glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB"); |
| 81 | glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB"); |
| 82 | glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB"); |
| 83 | glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB"); |
| 84 | glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB"); |
| 85 | glVertexAttrib1fARB_func = (PFNGLVERTEXATTRIB1FARBPROC) glutGetProcAddress("glVertexAttrib1fARB"); |
| 86 | |
| 87 | /* GL_APPLE_vertex_array_object */ |
| 88 | glBindVertexArrayAPPLE_func = (PFNGLBINDVERTEXARRAYAPPLEPROC) glutGetProcAddress("glBindVertexArrayAPPLE"); |
| 89 | glDeleteVertexArraysAPPLE_func = (PFNGLDELETEVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glDeleteVertexArraysAPPLE"); |
| 90 | glGenVertexArraysAPPLE_func = (PFNGLGENVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glGenVertexArraysAPPLE"); |
| 91 | glIsVertexArrayAPPLE_func = (PFNGLISVERTEXARRAYAPPLEPROC) glutGetProcAddress("glIsVertexArrayAPPLE"); |
| 92 | |
| 93 | } |
| 94 | |