source/renderbuffer.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgl
   4 Copyright © 2007  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include "extension.h"
   9 #include "ext_framebuffer_object.h"
  10 #include "renderbuffer.h"
  11
  12 namespace Msp {
  13 namespace GL {
  14
  15 Renderbuffer::Renderbuffer()
  16 {
  17         static RequireExtension _ext("GL_EXT_framebuffer_object");
  18
  19         glGenRenderbuffersEXT(1, &id);
  20 }
  21
  22 Renderbuffer::~Renderbuffer()
  23 {
  24         glDeleteRenderbuffersEXT(1, &id);
  25 }
  26
  27 void Renderbuffer::storage(PixelFormat fmt, unsigned w, unsigned h)
  28 {
  29         Bind _bind(this, true);
  30         width = w;
  31         height = h;
  32         glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, fmt, width, height);
  33 }
  34
  35 void Renderbuffer::bind() const
  36 {
  37         if(set_current(this))
  38                 glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, id);
  39 }
  40
  41 void Renderbuffer::unbind()
  42 {
  43         if(set_current(0))
  44                 glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
  45 }
  46
  47 } // namespace GL
  48 } // namespace Msp