source/ext_texture3d.cpp

   1 #include "ext_texture3d.h"
   2
   3 namespace Msp {
   4 namespace GL {
   5
   6 PFNGLTEXIMAGE3DPROC glTexImage3D = 0;
   7 PFNGLTEXSUBIMAGE3DPROC glTexSubImage3D = 0;
   8
   9 Extension::SupportLevel init_ext_texture3d()
  10 {
  11         if(is_version_at_least(1, 2))
  12         {
  13                 glTexImage3D = reinterpret_cast<PFNGLTEXIMAGE3DPROC>(get_proc_address("glTexImage3D"));
  14                 glTexSubImage3D = reinterpret_cast<PFNGLTEXSUBIMAGE3DPROC>(get_proc_address("glTexSubImage3D"));
  15                 return Extension::CORE;
  16         }
  17         if(is_supported("GL_EXT_texture3D"))
  18         {
  19                 glTexImage3D = reinterpret_cast<PFNGLTEXIMAGE3DPROC>(get_proc_address("glTexImage3DEXT"));
  20                 glTexSubImage3D = reinterpret_cast<PFNGLTEXSUBIMAGE3DPROC>(get_proc_address("glTexSubImage3DEXT"));
  21                 return Extension::EXTENSION;
  22         }
  23         return Extension::UNSUPPORTED;
  24 }
  25
  26 Extension EXT_texture3D("GL_EXT_texture3D", init_ext_texture3d);
  27
  28 } // namespace GL
  29 } // namespace Msp