source/ext_framebuffer_object.cpp

   1 #include "ext_framebuffer_object.h"
   2
   3 namespace Msp {
   4 namespace GL {
   5
   6 PFNGLBINDFRAMEBUFFERPROC glBindFramebuffer = 0;
   7 PFNGLBINDRENDERBUFFERPROC glBindRenderbuffer = 0;
   8 PFNGLCHECKFRAMEBUFFERSTATUSPROC glCheckFramebufferStatus = 0;
   9 PFNGLDELETEFRAMEBUFFERSPROC glDeleteFramebuffers = 0;
  10 PFNGLDELETERENDERBUFFERSPROC glDeleteRenderbuffers = 0;
  11 PFNGLFRAMEBUFFERRENDERBUFFERPROC glFramebufferRenderbuffer = 0;
  12 PFNGLFRAMEBUFFERTEXTURE1DPROC glFramebufferTexture1D = 0;
  13 PFNGLFRAMEBUFFERTEXTURE2DPROC glFramebufferTexture2D = 0;
  14 PFNGLFRAMEBUFFERTEXTURE3DPROC glFramebufferTexture3D = 0;
  15 PFNGLGENFRAMEBUFFERSPROC glGenFramebuffers = 0;
  16 PFNGLGENRENDERBUFFERSPROC glGenRenderbuffers = 0;
  17 PFNGLGENERATEMIPMAPPROC glGenerateMipmap = 0;
  18 PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC glGetFramebufferAttachmentParameteriv = 0;
  19 PFNGLGETRENDERBUFFERPARAMETERIVPROC glGetRenderbufferParameteriv = 0;
  20 PFNGLISFRAMEBUFFERPROC glIsFramebuffer = 0;
  21 PFNGLISRENDERBUFFERPROC glIsRenderbuffer = 0;
  22 PFNGLRENDERBUFFERSTORAGEPROC glRenderbufferStorage = 0;
  23
  24 Extension::SupportLevel init_ext_framebuffer_object()
  25 {
  26         if(is_version_at_least(3, 0) || is_supported("GL_ARB_framebuffer_object"))
  27         {
  28                 glBindFramebuffer = reinterpret_cast<PFNGLBINDFRAMEBUFFERPROC>(get_proc_address("glBindFramebuffer"));
  29                 glBindRenderbuffer = reinterpret_cast<PFNGLBINDRENDERBUFFERPROC>(get_proc_address("glBindRenderbuffer"));
  30                 glCheckFramebufferStatus = reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSPROC>(get_proc_address("glCheckFramebufferStatus"));
  31                 glDeleteFramebuffers = reinterpret_cast<PFNGLDELETEFRAMEBUFFERSPROC>(get_proc_address("glDeleteFramebuffers"));
  32                 glDeleteRenderbuffers = reinterpret_cast<PFNGLDELETERENDERBUFFERSPROC>(get_proc_address("glDeleteRenderbuffers"));
  33                 glFramebufferRenderbuffer = reinterpret_cast<PFNGLFRAMEBUFFERRENDERBUFFERPROC>(get_proc_address("glFramebufferRenderbuffer"));
  34                 glFramebufferTexture1D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE1DPROC>(get_proc_address("glFramebufferTexture1D"));
  35                 glFramebufferTexture2D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE2DPROC>(get_proc_address("glFramebufferTexture2D"));
  36                 glFramebufferTexture3D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE3DPROC>(get_proc_address("glFramebufferTexture3D"));
  37                 glGenFramebuffers = reinterpret_cast<PFNGLGENFRAMEBUFFERSPROC>(get_proc_address("glGenFramebuffers"));
  38                 glGenRenderbuffers = reinterpret_cast<PFNGLGENRENDERBUFFERSPROC>(get_proc_address("glGenRenderbuffers"));
  39                 glGenerateMipmap = reinterpret_cast<PFNGLGENERATEMIPMAPPROC>(get_proc_address("glGenerateMipmap"));
  40                 glGetFramebufferAttachmentParameteriv = reinterpret_cast<PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC>(get_proc_address("glGetFramebufferAttachmentParameteriv"));
  41                 glGetRenderbufferParameteriv = reinterpret_cast<PFNGLGETRENDERBUFFERPARAMETERIVPROC>(get_proc_address("glGetRenderbufferParameteriv"));
  42                 glIsFramebuffer = reinterpret_cast<PFNGLISFRAMEBUFFERPROC>(get_proc_address("glIsFramebuffer"));
  43                 glIsRenderbuffer = reinterpret_cast<PFNGLISRENDERBUFFERPROC>(get_proc_address("glIsRenderbuffer"));
  44                 glRenderbufferStorage = reinterpret_cast<PFNGLRENDERBUFFERSTORAGEPROC>(get_proc_address("glRenderbufferStorage"));
  45                 return Extension::CORE;
  46         }
  47         if(is_supported("GL_EXT_framebuffer_object"))
  48         {
  49                 glBindFramebuffer = reinterpret_cast<PFNGLBINDFRAMEBUFFERPROC>(get_proc_address("glBindFramebufferEXT"));
  50                 glBindRenderbuffer = reinterpret_cast<PFNGLBINDRENDERBUFFERPROC>(get_proc_address("glBindRenderbufferEXT"));
  51                 glCheckFramebufferStatus = reinterpret_cast<PFNGLCHECKFRAMEBUFFERSTATUSPROC>(get_proc_address("glCheckFramebufferStatusEXT"));
  52                 glDeleteFramebuffers = reinterpret_cast<PFNGLDELETEFRAMEBUFFERSPROC>(get_proc_address("glDeleteFramebuffersEXT"));
  53                 glDeleteRenderbuffers = reinterpret_cast<PFNGLDELETERENDERBUFFERSPROC>(get_proc_address("glDeleteRenderbuffersEXT"));
  54                 glFramebufferRenderbuffer = reinterpret_cast<PFNGLFRAMEBUFFERRENDERBUFFERPROC>(get_proc_address("glFramebufferRenderbufferEXT"));
  55                 glFramebufferTexture1D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE1DPROC>(get_proc_address("glFramebufferTexture1DEXT"));
  56                 glFramebufferTexture2D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE2DPROC>(get_proc_address("glFramebufferTexture2DEXT"));
  57                 glFramebufferTexture3D = reinterpret_cast<PFNGLFRAMEBUFFERTEXTURE3DPROC>(get_proc_address("glFramebufferTexture3DEXT"));
  58                 glGenFramebuffers = reinterpret_cast<PFNGLGENFRAMEBUFFERSPROC>(get_proc_address("glGenFramebuffersEXT"));
  59                 glGenRenderbuffers = reinterpret_cast<PFNGLGENRENDERBUFFERSPROC>(get_proc_address("glGenRenderbuffersEXT"));
  60                 glGenerateMipmap = reinterpret_cast<PFNGLGENERATEMIPMAPPROC>(get_proc_address("glGenerateMipmapEXT"));
  61                 glGetFramebufferAttachmentParameteriv = reinterpret_cast<PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVPROC>(get_proc_address("glGetFramebufferAttachmentParameterivEXT"));
  62                 glGetRenderbufferParameteriv = reinterpret_cast<PFNGLGETRENDERBUFFERPARAMETERIVPROC>(get_proc_address("glGetRenderbufferParameterivEXT"));
  63                 glIsFramebuffer = reinterpret_cast<PFNGLISFRAMEBUFFERPROC>(get_proc_address("glIsFramebufferEXT"));
  64                 glIsRenderbuffer = reinterpret_cast<PFNGLISRENDERBUFFERPROC>(get_proc_address("glIsRenderbufferEXT"));
  65                 glRenderbufferStorage = reinterpret_cast<PFNGLRENDERBUFFERSTORAGEPROC>(get_proc_address("glRenderbufferStorageEXT"));
  66                 return Extension::EXTENSION;
  67         }
  68         return Extension::UNSUPPORTED;
  69 }
  70
  71 Extension EXT_framebuffer_object("GL_EXT_framebuffer_object", init_ext_framebuffer_object);
  72
  73 } // namespace GL
  74 } // namespace Msp