source/renderbuffer.cpp

   1 #include <msp/gl/extensions/ext_framebuffer_multisample.h>
   2 #include <msp/gl/extensions/ext_framebuffer_object.h>
   3 #include "renderbuffer.h"
   4
   5 namespace Msp {
   6 namespace GL {
   7
   8 Renderbuffer::Renderbuffer()
   9 {
  10         static Require _req(EXT_framebuffer_object);
  11
  12         glGenRenderbuffers(1, &id);
  13 }
  14
  15 Renderbuffer::~Renderbuffer()
  16 {
  17         glDeleteRenderbuffers(1, &id);
  18 }
  19
  20 void Renderbuffer::storage(PixelFormat fmt, unsigned wd, unsigned ht)
  21 {
  22         require_pixelformat(fmt);
  23         BindRestore _bind(this);
  24         width = wd;
  25         height = ht;
  26         glRenderbufferStorage(GL_RENDERBUFFER, fmt, width, height);
  27 }
  28
  29 void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned wd, unsigned ht)
  30 {
  31         static Require _req(EXT_framebuffer_multisample);
  32         require_pixelformat(fmt);
  33
  34         BindRestore _bind(this);
  35         width = wd;
  36         height = ht;
  37         glRenderbufferStorageMultisample(GL_RENDERBUFFER, samples, fmt, width, height);
  38 }
  39
  40 void Renderbuffer::bind() const
  41 {
  42         if(set_current(this))
  43                 glBindRenderbuffer(GL_RENDERBUFFER, id);
  44 }
  45
  46 void Renderbuffer::unbind()
  47 {
  48         if(set_current(0))
  49                 glBindRenderbuffer(GL_RENDERBUFFER, 0);
  50 }
  51
  52 } // namespace GL
  53 } // namespace Msp