progs/util/extfuncs.h

   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 PFNGLBINDATTRIBLOCATIONPROC glBindAttribLocation_func = NULL;
   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;
  15 static PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation_func = NULL;
  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;
  27 static PFNGLUNIFORM1IPROC glUniform1i_func = NULL;
  28 static PFNGLUNIFORM1FVPROC glUniform1fv_func = NULL;
  29 static PFNGLUNIFORM2FVPROC glUniform2fv_func = NULL;
  30 static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL;
  31 static PFNGLUNIFORM4FVPROC glUniform4fv_func = NULL;
  32 static PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv_func = NULL;
  33 static PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv_func = NULL;
  34 static PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_func = NULL;
  35 static PFNGLUSEPROGRAMPROC glUseProgram_func = NULL;
  36 static PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f_func = NULL;
  37 static PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f_func = NULL;
  38 static PFNGLVERTEXATTRIB3FPROC glVertexAttrib3f_func = NULL;
  39 static PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f_func = NULL;
  40
  41
  42 /* GL_ARB_vertex/fragment_program */
  43 static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL;
  44 static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL;
  45 static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func = NULL;
  46 static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func = NULL;
  47 static PFNGLISPROGRAMARBPROC glIsProgramARB_func = NULL;
  48 static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func = NULL;
  49 static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func = NULL;
  50 static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func = NULL;
  51 static PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB_func = NULL;
  52
  53 /* GL_APPLE_vertex_array_object */
  54 static PFNGLBINDVERTEXARRAYAPPLEPROC glBindVertexArrayAPPLE_func = NULL;
  55 static PFNGLDELETEVERTEXARRAYSAPPLEPROC glDeleteVertexArraysAPPLE_func = NULL;
  56 static PFNGLGENVERTEXARRAYSAPPLEPROC glGenVertexArraysAPPLE_func = NULL;
  57 static PFNGLISVERTEXARRAYAPPLEPROC glIsVertexArrayAPPLE_func = NULL;
  58
  59
  60
  61 static void
  62 GetExtensionFuncs(void)
  63 {
  64    /* OpenGL 2.0 */
  65    glAttachShader_func = (PFNGLATTACHSHADERPROC) glutGetProcAddress("glAttachShader");
  66    glBindAttribLocation_func = (PFNGLBINDATTRIBLOCATIONPROC) glutGetProcAddress("glBindAttribLocation");
  67    glCompileShader_func = (PFNGLCOMPILESHADERPROC) glutGetProcAddress("glCompileShader");
  68    glCreateProgram_func = (PFNGLCREATEPROGRAMPROC) glutGetProcAddress("glCreateProgram");
  69    glCreateShader_func = (PFNGLCREATESHADERPROC) glutGetProcAddress("glCreateShader");
  70    glDeleteProgram_func = (PFNGLDELETEPROGRAMPROC) glutGetProcAddress("glDeleteProgram");
  71    glDeleteShader_func = (PFNGLDELETESHADERPROC) glutGetProcAddress("glDeleteShader");
  72    glGetAttachedShaders_func = (PFNGLGETATTACHEDSHADERSPROC) glutGetProcAddress("glGetAttachedShaders");
  73    glGetAttribLocation_func = (PFNGLGETATTRIBLOCATIONPROC) glutGetProcAddress("glGetAttribLocation");
  74    glGetProgramInfoLog_func = (PFNGLGETPROGRAMINFOLOGPROC) glutGetProcAddress("glGetProgramInfoLog");
  75    glGetShaderInfoLog_func = (PFNGLGETSHADERINFOLOGPROC) glutGetProcAddress("glGetShaderInfoLog");
  76    glGetProgramiv_func = (PFNGLGETPROGRAMIVPROC) glutGetProcAddress("glGetProgramiv");
  77    glGetShaderiv_func = (PFNGLGETSHADERIVPROC) glutGetProcAddress("glGetShaderiv");
  78    glGetShaderSource_func = (PFNGLGETSHADERSOURCEPROC) glutGetProcAddress("glGetShaderSource");
  79    glGetUniformLocation_func = (PFNGLGETUNIFORMLOCATIONPROC) glutGetProcAddress("glGetUniformLocation");
  80    glGetUniformfv_func = (PFNGLGETUNIFORMFVPROC) glutGetProcAddress("glGetUniformfv");
  81    glIsProgram_func = (PFNGLISPROGRAMPROC) glutGetProcAddress("glIsProgram");
  82    glIsShader_func = (PFNGLISSHADERPROC) glutGetProcAddress("glIsShader");
  83    glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram");
  84    glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource");
  85    glUniform1i_func = (PFNGLUNIFORM1IPROC) glutGetProcAddress("glUniform1i");
  86    glUniform1fv_func = (PFNGLUNIFORM1FVPROC) glutGetProcAddress("glUniform1fv");
  87    glUniform2fv_func = (PFNGLUNIFORM2FVPROC) glutGetProcAddress("glUniform2fv");
  88    glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv");
  89    glUniform4fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform4fv");
  90    glUniformMatrix2fv_func = (PFNGLUNIFORMMATRIX2FVPROC) glutGetProcAddress("glUniformMatrix2fv");
  91    glUniformMatrix3fv_func = (PFNGLUNIFORMMATRIX3FVPROC) glutGetProcAddress("glUniformMatrix3fv");
  92    glUniformMatrix4fv_func = (PFNGLUNIFORMMATRIX4FVPROC) glutGetProcAddress("glUniformMatrix4fv");
  93    glUseProgram_func = (PFNGLUSEPROGRAMPROC) glutGetProcAddress("glUseProgram");
  94    glVertexAttrib1f_func = (PFNGLVERTEXATTRIB1FPROC) glutGetProcAddress("glVertexAttrib1f");
  95    glVertexAttrib2f_func = (PFNGLVERTEXATTRIB2FPROC) glutGetProcAddress("glVertexAttrib2f");
  96    glVertexAttrib3f_func = (PFNGLVERTEXATTRIB3FPROC) glutGetProcAddress("glVertexAttrib3f");
  97    glVertexAttrib4f_func = (PFNGLVERTEXATTRIB4FPROC) glutGetProcAddress("glVertexAttrib4f");
  98
  99
 100    /* GL_ARB_vertex/fragment_program */
 101    glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB");
 102    glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB");
 103    glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB");
 104    glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB");
 105    glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB");
 106    glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB");
 107    glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB");
 108    glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB");
 109    glVertexAttrib1fARB_func = (PFNGLVERTEXATTRIB1FARBPROC) glutGetProcAddress("glVertexAttrib1fARB");
 110
 111    /* GL_APPLE_vertex_array_object */
 112    glBindVertexArrayAPPLE_func = (PFNGLBINDVERTEXARRAYAPPLEPROC) glutGetProcAddress("glBindVertexArrayAPPLE");
 113    glDeleteVertexArraysAPPLE_func = (PFNGLDELETEVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glDeleteVertexArraysAPPLE");
 114    glGenVertexArraysAPPLE_func = (PFNGLGENVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glGenVertexArraysAPPLE");
 115    glIsVertexArrayAPPLE_func = (PFNGLISVERTEXARRAYAPPLEPROC) glutGetProcAddress("glIsVertexArrayAPPLE");
 116
 117 }
 118