source/backends/opengl/frameformat_backend.cpp

   1 #include <msp/gl/extensions/ext_framebuffer_object.h>
   2 #include "frameformat.h"
   3 #include "frameformat_backend.h"
   4 #include "gl.h"
   5
   6 namespace Msp {
   7 namespace GL {
   8
   9 unsigned get_gl_attachment(FrameAttachment fa)
  10 {
  11         if(get_attach_point(fa)==get_attach_point(DEPTH_ATTACHMENT))
  12                 return GL_DEPTH_ATTACHMENT;
  13         else if(get_attach_point(fa)==get_attach_point(STENCIL_ATTACHMENT))
  14                 return GL_STENCIL_ATTACHMENT;
  15         else
  16                 return GL_COLOR_ATTACHMENT0+get_attach_point(fa);
  17 }
  18
  19 unsigned get_gl_buffer_bits(const FrameFormat &format)
  20 {
  21         unsigned bits = 0;
  22         for(FrameAttachment a: format)
  23         {
  24                 if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
  25                         bits |= GL_DEPTH_BUFFER_BIT;
  26                 else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
  27                         bits |= GL_STENCIL_BUFFER_BIT;
  28                 else
  29                         bits |= GL_COLOR_BUFFER_BIT;
  30         }
  31         return bits;
  32 }
  33
  34 } // namespace GL
  35 } // namespace Msp