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 PFNGLGETACTIVEATTRIBPROC glGetActiveAttrib_func = NULL;
  15 static PFNGLGETATTACHEDSHADERSPROC glGetAttachedShaders_func = NULL;
  16 static PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation_func = NULL;
  17 static PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog_func = NULL;
  18 static PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog_func = NULL;
  19 static PFNGLGETSHADERIVPROC glGetShaderiv_func = NULL;
  20 static PFNGLGETPROGRAMIVPROC glGetProgramiv_func = NULL;
  21 static PFNGLGETSHADERSOURCEPROC glGetShaderSource_func = NULL;
  22 static PFNGLGETUNIFORMFVPROC glGetUniformfv_func = NULL;
  23 static PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation_func = NULL;
  24 static PFNGLISPROGRAMPROC glIsProgram_func = NULL;
  25 static PFNGLISSHADERPROC glIsShader_func = NULL;
  26 static PFNGLLINKPROGRAMPROC glLinkProgram_func = NULL;
  27 static PFNGLSHADERSOURCEPROC glShaderSource_func = NULL;
  28 static PFNGLUNIFORM1IPROC glUniform1i_func = NULL;
  29 static PFNGLUNIFORM2IPROC glUniform2i_func = NULL;
  30 static PFNGLUNIFORM3IPROC glUniform3i_func = NULL;
  31 static PFNGLUNIFORM4IPROC glUniform4i_func = NULL;
  32 static PFNGLUNIFORM1FPROC glUniform1f_func = NULL;
  33 static PFNGLUNIFORM2FPROC glUniform2f_func = NULL;
  34 static PFNGLUNIFORM3FPROC glUniform3f_func = NULL;
  35 static PFNGLUNIFORM4FPROC glUniform4f_func = NULL;
  36 static PFNGLUNIFORM1FVPROC glUniform1fv_func = NULL;
  37 static PFNGLUNIFORM2FVPROC glUniform2fv_func = NULL;
  38 static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL;
  39 static PFNGLUNIFORM4FVPROC glUniform4fv_func = NULL;
  40 static PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv_func = NULL;
  41 static PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv_func = NULL;
  42 static PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_func = NULL;
  43 static PFNGLUSEPROGRAMPROC glUseProgram_func = NULL;
  44 static PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f_func = NULL;
  45 static PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f_func = NULL;
  46 static PFNGLVERTEXATTRIB3FPROC glVertexAttrib3f_func = NULL;
  47 static PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f_func = NULL;
  48
  49 /* OpenGL 2.1 */
  50 static PFNGLUNIFORMMATRIX2X3FVPROC glUniformMatrix2x3fv_func = NULL;
  51 static PFNGLUNIFORMMATRIX3X2FVPROC glUniformMatrix3x2fv_func = NULL;
  52 static PFNGLUNIFORMMATRIX2X4FVPROC glUniformMatrix2x4fv_func = NULL;
  53 static PFNGLUNIFORMMATRIX4X2FVPROC glUniformMatrix4x2fv_func = NULL;
  54 static PFNGLUNIFORMMATRIX3X4FVPROC glUniformMatrix3x4fv_func = NULL;
  55 static PFNGLUNIFORMMATRIX4X3FVPROC glUniformMatrix4x3fv_func = NULL;
  56
  57 /* OpenGL 1.4 */
  58 static PFNGLPOINTPARAMETERFVPROC glPointParameterfv_func = NULL;
  59
  60 /* GL_ARB_vertex/fragment_program */
  61 static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL;
  62 static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL;
  63 static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func = NULL;
  64 static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func = NULL;
  65 static PFNGLISPROGRAMARBPROC glIsProgramARB_func = NULL;
  66 static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func = NULL;
  67 static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func = NULL;
  68 static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func = NULL;
  69 static PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB_func = NULL;
  70
  71 /* GL_APPLE_vertex_array_object */
  72 static PFNGLBINDVERTEXARRAYAPPLEPROC glBindVertexArrayAPPLE_func = NULL;
  73 static PFNGLDELETEVERTEXARRAYSAPPLEPROC glDeleteVertexArraysAPPLE_func = NULL;
  74 static PFNGLGENVERTEXARRAYSAPPLEPROC glGenVertexArraysAPPLE_func = NULL;
  75 static PFNGLISVERTEXARRAYAPPLEPROC glIsVertexArrayAPPLE_func = NULL;
  76
  77 /* GL_EXT_stencil_two_side */
  78 static PFNGLACTIVESTENCILFACEEXTPROC glActiveStencilFaceEXT_func = NULL;
  79
  80
  81 static void
  82 GetExtensionFuncs(void)
  83 {
  84    /* OpenGL 2.0 */
  85    glAttachShader_func = (PFNGLATTACHSHADERPROC) glutGetProcAddress("glAttachShader");
  86    glBindAttribLocation_func = (PFNGLBINDATTRIBLOCATIONPROC) glutGetProcAddress("glBindAttribLocation");
  87    glCompileShader_func = (PFNGLCOMPILESHADERPROC) glutGetProcAddress("glCompileShader");
  88    glCreateProgram_func = (PFNGLCREATEPROGRAMPROC) glutGetProcAddress("glCreateProgram");
  89    glCreateShader_func = (PFNGLCREATESHADERPROC) glutGetProcAddress("glCreateShader");
  90    glDeleteProgram_func = (PFNGLDELETEPROGRAMPROC) glutGetProcAddress("glDeleteProgram");
  91    glDeleteShader_func = (PFNGLDELETESHADERPROC) glutGetProcAddress("glDeleteShader");
  92    glGetActiveAttrib_func = (PFNGLGETACTIVEATTRIBPROC) glutGetProcAddress("glGetActiveAttrib");
  93    glGetAttachedShaders_func = (PFNGLGETATTACHEDSHADERSPROC) glutGetProcAddress("glGetAttachedShaders");
  94    glGetAttribLocation_func = (PFNGLGETATTRIBLOCATIONPROC) glutGetProcAddress("glGetAttribLocation");
  95    glGetProgramInfoLog_func = (PFNGLGETPROGRAMINFOLOGPROC) glutGetProcAddress("glGetProgramInfoLog");
  96    glGetShaderInfoLog_func = (PFNGLGETSHADERINFOLOGPROC) glutGetProcAddress("glGetShaderInfoLog");
  97    glGetProgramiv_func = (PFNGLGETPROGRAMIVPROC) glutGetProcAddress("glGetProgramiv");
  98    glGetShaderiv_func = (PFNGLGETSHADERIVPROC) glutGetProcAddress("glGetShaderiv");
  99    glGetShaderSource_func = (PFNGLGETSHADERSOURCEPROC) glutGetProcAddress("glGetShaderSource");
 100    glGetUniformLocation_func = (PFNGLGETUNIFORMLOCATIONPROC) glutGetProcAddress("glGetUniformLocation");
 101    glGetUniformfv_func = (PFNGLGETUNIFORMFVPROC) glutGetProcAddress("glGetUniformfv");
 102    glIsProgram_func = (PFNGLISPROGRAMPROC) glutGetProcAddress("glIsProgram");
 103    glIsShader_func = (PFNGLISSHADERPROC) glutGetProcAddress("glIsShader");
 104    glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram");
 105    glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource");
 106    glUniform1i_func = (PFNGLUNIFORM1IPROC) glutGetProcAddress("glUniform1i");
 107    glUniform2i_func = (PFNGLUNIFORM2IPROC) glutGetProcAddress("glUniform2i");
 108    glUniform3i_func = (PFNGLUNIFORM3IPROC) glutGetProcAddress("glUniform3i");
 109    glUniform4i_func = (PFNGLUNIFORM4IPROC) glutGetProcAddress("glUniform3i");
 110    glUniform1f_func = (PFNGLUNIFORM1FPROC) glutGetProcAddress("glUniform1f");
 111    glUniform2f_func = (PFNGLUNIFORM2FPROC) glutGetProcAddress("glUniform2f");
 112    glUniform3f_func = (PFNGLUNIFORM3FPROC) glutGetProcAddress("glUniform3f");
 113    glUniform4f_func = (PFNGLUNIFORM4FPROC) glutGetProcAddress("glUniform3f");
 114    glUniform1fv_func = (PFNGLUNIFORM1FVPROC) glutGetProcAddress("glUniform1fv");
 115    glUniform2fv_func = (PFNGLUNIFORM2FVPROC) glutGetProcAddress("glUniform2fv");
 116    glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv");
 117    glUniform4fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform4fv");
 118    glUniformMatrix2fv_func = (PFNGLUNIFORMMATRIX2FVPROC) glutGetProcAddress("glUniformMatrix2fv");
 119    glUniformMatrix3fv_func = (PFNGLUNIFORMMATRIX3FVPROC) glutGetProcAddress("glUniformMatrix3fv");
 120    glUniformMatrix4fv_func = (PFNGLUNIFORMMATRIX4FVPROC) glutGetProcAddress("glUniformMatrix4fv");
 121    glUseProgram_func = (PFNGLUSEPROGRAMPROC) glutGetProcAddress("glUseProgram");
 122    glVertexAttrib1f_func = (PFNGLVERTEXATTRIB1FPROC) glutGetProcAddress("glVertexAttrib1f");
 123    glVertexAttrib2f_func = (PFNGLVERTEXATTRIB2FPROC) glutGetProcAddress("glVertexAttrib2f");
 124    glVertexAttrib3f_func = (PFNGLVERTEXATTRIB3FPROC) glutGetProcAddress("glVertexAttrib3f");
 125    glVertexAttrib4f_func = (PFNGLVERTEXATTRIB4FPROC) glutGetProcAddress("glVertexAttrib4f");
 126
 127    /* OpenGL 2.1 */
 128    glUniformMatrix2x3fv_func = (PFNGLUNIFORMMATRIX2X3FVPROC) glutGetProcAddress("glUniformMatrix2x3fv");
 129    glUniformMatrix3x2fv_func = (PFNGLUNIFORMMATRIX3X2FVPROC) glutGetProcAddress("glUniformMatrix3x2fv");
 130    glUniformMatrix2x4fv_func = (PFNGLUNIFORMMATRIX2X4FVPROC) glutGetProcAddress("glUniformMatrix2x4fv");
 131    glUniformMatrix4x2fv_func = (PFNGLUNIFORMMATRIX4X2FVPROC) glutGetProcAddress("glUniformMatrix4x2fv");
 132    glUniformMatrix3x4fv_func = (PFNGLUNIFORMMATRIX3X4FVPROC) glutGetProcAddress("glUniformMatrix3x4fv");
 133    glUniformMatrix4x3fv_func = (PFNGLUNIFORMMATRIX4X3FVPROC) glutGetProcAddress("glUniformMatrix4x3fv");
 134
 135    glPointParameterfv_func = (PFNGLPOINTPARAMETERFVPROC) glutGetProcAddress("glPointParameterfv");
 136
 137    /* GL_ARB_vertex/fragment_program */
 138    glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB");
 139    glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB");
 140    glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB");
 141    glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB");
 142    glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB");
 143    glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB");
 144    glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB");
 145    glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB");
 146    glVertexAttrib1fARB_func = (PFNGLVERTEXATTRIB1FARBPROC) glutGetProcAddress("glVertexAttrib1fARB");
 147
 148    /* GL_APPLE_vertex_array_object */
 149    glBindVertexArrayAPPLE_func = (PFNGLBINDVERTEXARRAYAPPLEPROC) glutGetProcAddress("glBindVertexArrayAPPLE");
 150    glDeleteVertexArraysAPPLE_func = (PFNGLDELETEVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glDeleteVertexArraysAPPLE");
 151    glGenVertexArraysAPPLE_func = (PFNGLGENVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glGenVertexArraysAPPLE");
 152    glIsVertexArrayAPPLE_func = (PFNGLISVERTEXARRAYAPPLEPROC) glutGetProcAddress("glIsVertexArrayAPPLE");
 153
 154    /* GL_EXT_stencil_two_side */
 155    glActiveStencilFaceEXT_func = (PFNGLACTIVESTENCILFACEEXTPROC) glutGetProcAddress("glActiveStencilFaceEXT");
 156 }
 157