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 PFNGLGETACTIVEUNIFORMPROC glGetActiveUniform_func = NULL;
  16 static PFNGLGETATTACHEDSHADERSPROC glGetAttachedShaders_func = NULL;
  17 static PFNGLGETATTRIBLOCATIONPROC glGetAttribLocation_func = NULL;
  18 static PFNGLGETPROGRAMINFOLOGPROC glGetProgramInfoLog_func = NULL;
  19 static PFNGLGETSHADERINFOLOGPROC glGetShaderInfoLog_func = NULL;
  20 static PFNGLGETSHADERIVPROC glGetShaderiv_func = NULL;
  21 static PFNGLGETPROGRAMIVPROC glGetProgramiv_func = NULL;
  22 static PFNGLGETSHADERSOURCEPROC glGetShaderSource_func = NULL;
  23 static PFNGLGETUNIFORMFVPROC glGetUniformfv_func = NULL;
  24 static PFNGLGETUNIFORMLOCATIONPROC glGetUniformLocation_func = NULL;
  25 static PFNGLISPROGRAMPROC glIsProgram_func = NULL;
  26 static PFNGLISSHADERPROC glIsShader_func = NULL;
  27 static PFNGLLINKPROGRAMPROC glLinkProgram_func = NULL;
  28 static PFNGLSHADERSOURCEPROC glShaderSource_func = NULL;
  29 static PFNGLUNIFORM1IPROC glUniform1i_func = NULL;
  30 static PFNGLUNIFORM2IPROC glUniform2i_func = NULL;
  31 static PFNGLUNIFORM3IPROC glUniform3i_func = NULL;
  32 static PFNGLUNIFORM4IPROC glUniform4i_func = NULL;
  33 static PFNGLUNIFORM1FPROC glUniform1f_func = NULL;
  34 static PFNGLUNIFORM2FPROC glUniform2f_func = NULL;
  35 static PFNGLUNIFORM3FPROC glUniform3f_func = NULL;
  36 static PFNGLUNIFORM4FPROC glUniform4f_func = NULL;
  37 static PFNGLUNIFORM1FVPROC glUniform1fv_func = NULL;
  38 static PFNGLUNIFORM2FVPROC glUniform2fv_func = NULL;
  39 static PFNGLUNIFORM3FVPROC glUniform3fv_func = NULL;
  40 static PFNGLUNIFORM4FVPROC glUniform4fv_func = NULL;
  41 static PFNGLUNIFORMMATRIX2FVPROC glUniformMatrix2fv_func = NULL;
  42 static PFNGLUNIFORMMATRIX3FVPROC glUniformMatrix3fv_func = NULL;
  43 static PFNGLUNIFORMMATRIX4FVPROC glUniformMatrix4fv_func = NULL;
  44 static PFNGLUSEPROGRAMPROC glUseProgram_func = NULL;
  45 static PFNGLVERTEXATTRIB1FPROC glVertexAttrib1f_func = NULL;
  46 static PFNGLVERTEXATTRIB2FPROC glVertexAttrib2f_func = NULL;
  47 static PFNGLVERTEXATTRIB3FPROC glVertexAttrib3f_func = NULL;
  48 static PFNGLVERTEXATTRIB4FPROC glVertexAttrib4f_func = NULL;
  49
  50 /* OpenGL 2.1 */
  51 static PFNGLUNIFORMMATRIX2X3FVPROC glUniformMatrix2x3fv_func = NULL;
  52 static PFNGLUNIFORMMATRIX3X2FVPROC glUniformMatrix3x2fv_func = NULL;
  53 static PFNGLUNIFORMMATRIX2X4FVPROC glUniformMatrix2x4fv_func = NULL;
  54 static PFNGLUNIFORMMATRIX4X2FVPROC glUniformMatrix4x2fv_func = NULL;
  55 static PFNGLUNIFORMMATRIX3X4FVPROC glUniformMatrix3x4fv_func = NULL;
  56 static PFNGLUNIFORMMATRIX4X3FVPROC glUniformMatrix4x3fv_func = NULL;
  57
  58 /* OpenGL 1.4 */
  59 static PFNGLPOINTPARAMETERFVPROC glPointParameterfv_func = NULL;
  60 static PFNGLSECONDARYCOLOR3FVPROC glSecondaryColor3fv_func = NULL;
  61
  62 /* GL_ARB_vertex/fragment_program */
  63 static PFNGLBINDPROGRAMARBPROC glBindProgramARB_func = NULL;
  64 static PFNGLDELETEPROGRAMSARBPROC glDeleteProgramsARB_func = NULL;
  65 static PFNGLGENPROGRAMSARBPROC glGenProgramsARB_func = NULL;
  66 static PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC glGetProgramLocalParameterdvARB_func = NULL;
  67 static PFNGLISPROGRAMARBPROC glIsProgramARB_func = NULL;
  68 static PFNGLPROGRAMLOCALPARAMETER4DARBPROC glProgramLocalParameter4dARB_func = NULL;
  69 static PFNGLPROGRAMLOCALPARAMETER4FVARBPROC glProgramLocalParameter4fvARB_func = NULL;
  70 static PFNGLPROGRAMSTRINGARBPROC glProgramStringARB_func = NULL;
  71 static PFNGLVERTEXATTRIB1FARBPROC glVertexAttrib1fARB_func = NULL;
  72
  73 /* GL_APPLE_vertex_array_object */
  74 static PFNGLBINDVERTEXARRAYAPPLEPROC glBindVertexArrayAPPLE_func = NULL;
  75 static PFNGLDELETEVERTEXARRAYSAPPLEPROC glDeleteVertexArraysAPPLE_func = NULL;
  76 static PFNGLGENVERTEXARRAYSAPPLEPROC glGenVertexArraysAPPLE_func = NULL;
  77 static PFNGLISVERTEXARRAYAPPLEPROC glIsVertexArrayAPPLE_func = NULL;
  78
  79 /* GL_EXT_stencil_two_side */
  80 static PFNGLACTIVESTENCILFACEEXTPROC glActiveStencilFaceEXT_func = NULL;
  81
  82
  83 static void
  84 GetExtensionFuncs(void)
  85 {
  86    /* OpenGL 2.0 */
  87    glAttachShader_func = (PFNGLATTACHSHADERPROC) glutGetProcAddress("glAttachShader");
  88    glBindAttribLocation_func = (PFNGLBINDATTRIBLOCATIONPROC) glutGetProcAddress("glBindAttribLocation");
  89    glCompileShader_func = (PFNGLCOMPILESHADERPROC) glutGetProcAddress("glCompileShader");
  90    glCreateProgram_func = (PFNGLCREATEPROGRAMPROC) glutGetProcAddress("glCreateProgram");
  91    glCreateShader_func = (PFNGLCREATESHADERPROC) glutGetProcAddress("glCreateShader");
  92    glDeleteProgram_func = (PFNGLDELETEPROGRAMPROC) glutGetProcAddress("glDeleteProgram");
  93    glDeleteShader_func = (PFNGLDELETESHADERPROC) glutGetProcAddress("glDeleteShader");
  94    glGetActiveAttrib_func = (PFNGLGETACTIVEATTRIBPROC) glutGetProcAddress("glGetActiveAttrib");
  95    glGetActiveUniform_func = (PFNGLGETACTIVEUNIFORMPROC) glutGetProcAddress("glGetActiveUniform");
  96    glGetAttachedShaders_func = (PFNGLGETATTACHEDSHADERSPROC) glutGetProcAddress("glGetAttachedShaders");
  97    glGetAttribLocation_func = (PFNGLGETATTRIBLOCATIONPROC) glutGetProcAddress("glGetAttribLocation");
  98    glGetProgramInfoLog_func = (PFNGLGETPROGRAMINFOLOGPROC) glutGetProcAddress("glGetProgramInfoLog");
  99    glGetShaderInfoLog_func = (PFNGLGETSHADERINFOLOGPROC) glutGetProcAddress("glGetShaderInfoLog");
 100    glGetProgramiv_func = (PFNGLGETPROGRAMIVPROC) glutGetProcAddress("glGetProgramiv");
 101    glGetShaderiv_func = (PFNGLGETSHADERIVPROC) glutGetProcAddress("glGetShaderiv");
 102    glGetShaderSource_func = (PFNGLGETSHADERSOURCEPROC) glutGetProcAddress("glGetShaderSource");
 103    glGetUniformLocation_func = (PFNGLGETUNIFORMLOCATIONPROC) glutGetProcAddress("glGetUniformLocation");
 104    glGetUniformfv_func = (PFNGLGETUNIFORMFVPROC) glutGetProcAddress("glGetUniformfv");
 105    glIsProgram_func = (PFNGLISPROGRAMPROC) glutGetProcAddress("glIsProgram");
 106    glIsShader_func = (PFNGLISSHADERPROC) glutGetProcAddress("glIsShader");
 107    glLinkProgram_func = (PFNGLLINKPROGRAMPROC) glutGetProcAddress("glLinkProgram");
 108    glShaderSource_func = (PFNGLSHADERSOURCEPROC) glutGetProcAddress("glShaderSource");
 109    glUniform1i_func = (PFNGLUNIFORM1IPROC) glutGetProcAddress("glUniform1i");
 110    glUniform2i_func = (PFNGLUNIFORM2IPROC) glutGetProcAddress("glUniform2i");
 111    glUniform3i_func = (PFNGLUNIFORM3IPROC) glutGetProcAddress("glUniform3i");
 112    glUniform4i_func = (PFNGLUNIFORM4IPROC) glutGetProcAddress("glUniform3i");
 113    glUniform1f_func = (PFNGLUNIFORM1FPROC) glutGetProcAddress("glUniform1f");
 114    glUniform2f_func = (PFNGLUNIFORM2FPROC) glutGetProcAddress("glUniform2f");
 115    glUniform3f_func = (PFNGLUNIFORM3FPROC) glutGetProcAddress("glUniform3f");
 116    glUniform4f_func = (PFNGLUNIFORM4FPROC) glutGetProcAddress("glUniform4f");
 117    glUniform1fv_func = (PFNGLUNIFORM1FVPROC) glutGetProcAddress("glUniform1fv");
 118    glUniform2fv_func = (PFNGLUNIFORM2FVPROC) glutGetProcAddress("glUniform2fv");
 119    glUniform3fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform3fv");
 120    glUniform4fv_func = (PFNGLUNIFORM3FVPROC) glutGetProcAddress("glUniform4fv");
 121    glUniformMatrix2fv_func = (PFNGLUNIFORMMATRIX2FVPROC) glutGetProcAddress("glUniformMatrix2fv");
 122    glUniformMatrix3fv_func = (PFNGLUNIFORMMATRIX3FVPROC) glutGetProcAddress("glUniformMatrix3fv");
 123    glUniformMatrix4fv_func = (PFNGLUNIFORMMATRIX4FVPROC) glutGetProcAddress("glUniformMatrix4fv");
 124    glUseProgram_func = (PFNGLUSEPROGRAMPROC) glutGetProcAddress("glUseProgram");
 125    glVertexAttrib1f_func = (PFNGLVERTEXATTRIB1FPROC) glutGetProcAddress("glVertexAttrib1f");
 126    glVertexAttrib2f_func = (PFNGLVERTEXATTRIB2FPROC) glutGetProcAddress("glVertexAttrib2f");
 127    glVertexAttrib3f_func = (PFNGLVERTEXATTRIB3FPROC) glutGetProcAddress("glVertexAttrib3f");
 128    glVertexAttrib4f_func = (PFNGLVERTEXATTRIB4FPROC) glutGetProcAddress("glVertexAttrib4f");
 129
 130    /* OpenGL 2.1 */
 131    glUniformMatrix2x3fv_func = (PFNGLUNIFORMMATRIX2X3FVPROC) glutGetProcAddress("glUniformMatrix2x3fv");
 132    glUniformMatrix3x2fv_func = (PFNGLUNIFORMMATRIX3X2FVPROC) glutGetProcAddress("glUniformMatrix3x2fv");
 133    glUniformMatrix2x4fv_func = (PFNGLUNIFORMMATRIX2X4FVPROC) glutGetProcAddress("glUniformMatrix2x4fv");
 134    glUniformMatrix4x2fv_func = (PFNGLUNIFORMMATRIX4X2FVPROC) glutGetProcAddress("glUniformMatrix4x2fv");
 135    glUniformMatrix3x4fv_func = (PFNGLUNIFORMMATRIX3X4FVPROC) glutGetProcAddress("glUniformMatrix3x4fv");
 136    glUniformMatrix4x3fv_func = (PFNGLUNIFORMMATRIX4X3FVPROC) glutGetProcAddress("glUniformMatrix4x3fv");
 137
 138    /* OpenGL 1.4 */
 139    glPointParameterfv_func = (PFNGLPOINTPARAMETERFVPROC) glutGetProcAddress("glPointParameterfv");
 140    glSecondaryColor3fv_func = (PFNGLSECONDARYCOLOR3FVPROC) glutGetProcAddress("glSecondaryColor3fv");
 141
 142    /* GL_ARB_vertex/fragment_program */
 143    glBindProgramARB_func = (PFNGLBINDPROGRAMARBPROC) glutGetProcAddress("glBindProgramARB");
 144    glDeleteProgramsARB_func = (PFNGLDELETEPROGRAMSARBPROC) glutGetProcAddress("glDeleteProgramsARB");
 145    glGenProgramsARB_func = (PFNGLGENPROGRAMSARBPROC) glutGetProcAddress("glGenProgramsARB");
 146    glGetProgramLocalParameterdvARB_func = (PFNGLGETPROGRAMLOCALPARAMETERDVARBPROC) glutGetProcAddress("glGetProgramLocalParameterdvARB");
 147    glIsProgramARB_func = (PFNGLISPROGRAMARBPROC) glutGetProcAddress("glIsProgramARB");
 148    glProgramLocalParameter4dARB_func = (PFNGLPROGRAMLOCALPARAMETER4DARBPROC) glutGetProcAddress("glProgramLocalParameter4dARB");
 149    glProgramLocalParameter4fvARB_func = (PFNGLPROGRAMLOCALPARAMETER4FVARBPROC) glutGetProcAddress("glProgramLocalParameter4fvARB");
 150    glProgramStringARB_func = (PFNGLPROGRAMSTRINGARBPROC) glutGetProcAddress("glProgramStringARB");
 151    glVertexAttrib1fARB_func = (PFNGLVERTEXATTRIB1FARBPROC) glutGetProcAddress("glVertexAttrib1fARB");
 152
 153    /* GL_APPLE_vertex_array_object */
 154    glBindVertexArrayAPPLE_func = (PFNGLBINDVERTEXARRAYAPPLEPROC) glutGetProcAddress("glBindVertexArrayAPPLE");
 155    glDeleteVertexArraysAPPLE_func = (PFNGLDELETEVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glDeleteVertexArraysAPPLE");
 156    glGenVertexArraysAPPLE_func = (PFNGLGENVERTEXARRAYSAPPLEPROC) glutGetProcAddress("glGenVertexArraysAPPLE");
 157    glIsVertexArrayAPPLE_func = (PFNGLISVERTEXARRAYAPPLEPROC) glutGetProcAddress("glIsVertexArrayAPPLE");
 158
 159    /* GL_EXT_stencil_two_side */
 160    glActiveStencilFaceEXT_func = (PFNGLACTIVESTENCILFACEEXTPROC) glutGetProcAddress("glActiveStencilFaceEXT");
 161 }
 162