source/renderbuffer.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgl
   4 Copyright © 2007-2011  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include "extension.h"
   9 #include "ext_framebuffer_multisample.h"
  10 #include "ext_framebuffer_object.h"
  11 #include "renderbuffer.h"
  12
  13 namespace Msp {
  14 namespace GL {
  15
  16 Renderbuffer::Renderbuffer()
  17 {
  18         static RequireExtension _ext("GL_EXT_framebuffer_object");
  19
  20         glGenRenderbuffersEXT(1, &id);
  21 }
  22
  23 Renderbuffer::~Renderbuffer()
  24 {
  25         glDeleteRenderbuffersEXT(1, &id);
  26 }
  27
  28 void Renderbuffer::storage(PixelFormat fmt, unsigned w, unsigned h)
  29 {
  30         Bind _bind(this, true);
  31         width = w;
  32         height = h;
  33         glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, fmt, width, height);
  34 }
  35
  36 void Renderbuffer::storage_multisample(unsigned samples, PixelFormat fmt, unsigned w, unsigned h)
  37 {
  38         static RequireExtension _ext("GL_EXT_framebuffer_multisample");
  39
  40         Bind _bind(this, true);
  41         width = w;
  42         height = h;
  43         glRenderbufferStorageMultisampleEXT(GL_RENDERBUFFER_EXT, samples, fmt, width, height);
  44 }
  45
  46 void Renderbuffer::bind() const
  47 {
  48         if(set_current(this))
  49                 glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, id);
  50 }
  51
  52 void Renderbuffer::unbind()
  53 {
  54         if(set_current(0))
  55                 glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
  56 }
  57
  58 } // namespace GL
  59 } // namespace Msp