GPUQMCFramebuffer.h

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/*
  Copyright (c) Amos G. Anderson 2005
  Distributed under GNU general public license (GPL)
  No guarantee or warantee regarding usability or stability is expressed or implied.
  nitroamos@gmail.com
*/

#ifndef GPU_FRAMEBUFFER
#define GPU_FRAMEBUFFER

#ifdef QMC_GPU

#include <iostream>
#include <stdlib.h>
#include <assert.h>
#include <math.h>
#include <vector>
#include <string>

#include "GPUGlobals.h"

class GPUQMCFramebuffer
  {
    public:
      GPUQMCFramebuffer();
      
      GPUQMCFramebuffer(int width, int height, int numFB, int numRT);
      
      void operator=(GPUQMCFramebuffer & rhs);
      
      ~GPUQMCFramebuffer();
      
      void initialize(int width, int height, int numFB, int numRT);
      
      int getWidth();
      
      int getHeight();
      
      void drawTo(int whichFB);
      
      void readFrom(int whichFB, int whichRT);
      
      void cleanBuffer(int whichFB);
      
      void cleanAllBuffers();
      
      void swapBuffers();
      
      void setupSwapBuffers(int first, int second);
      
      void checkFramebufferStatus();
      
      GLuint addTexture();
      
      void addTexture(GLuint newTexID);
      
      void removeTexture(int whichRT);
      
      GLuint getTextureID(int whichFB, int whichRT);
      
      int getNumRT();
      
      int getNumFB();
      
      bool testExistance(int whichFB, int whichRT);
      
    private:
    
      vector< GLuint >  theFrameBuffers;
      
      vector< vector< GLuint > >  attachedTextures;
      
      vector< GLenum* > bufferAttachments;
      
      int w, h;
      
      const static int maxBuffers = 16;
  };
#endif
#endif
  

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