communicator.h

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/***************************************************************************
 *   Copyright (C) 2008 by Kutumov Alexey                                  *
 *   ru.pixel@gmail.com                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/

#ifndef __communicator__header__
#define __communicator__header__

#include "gpucalc/kernel.h"

#include "gpucalc/application.h"
#include "gpucalc/log_manager.h"


namespace gpucalc
{

 const char _CommunicatorClassName [] = "Communicator";

 class _GpuCalcExport Communicator: public Object
 {


  OBJ_DISABLE_COPY(Communicator);


  public:
   Communicator(const std::string & CommunicatorName):
    mCurrentState(SNotReady),
    Object(_CommunicatorClassName, CommunicatorName),
    mPreviousKernel(0), mCurrentKernel(0), mRenderTarget(0),
    mTextureVector()
   {
   }


   ~Communicator()
   {
   }


   void setPreviousKernel(Kernel * PreviousKernel)
   {
    mPreviousKernel = 0;
   }


   void setCurrentKernel(Kernel * CurrentKernel)
   {
    if (mCurrentState & SHasKernel)
    {
     Except<ERR_DUPLICATE_ITEM>("Current Kernel has been already set.", "Communicator::setCurrentKernel", __FILE__, __LINE__);
    }
    else
    {
     mCurrentKernel = CurrentKernel;
     mCurrentState = mCurrentState & SHasKernel;
    }
   }


   void addStaticTexture(Texture * texture)
   {
    
   }


   void setRenderTarget(Texture * RenderTarget)
   {
    if (mCurrentState & SHasRenderTarget)
    {
     Except<ERR_DUPLICATE_ITEM>("Current Kernel already has render target.", "Communicator::setRenderTarget", __FILE__, __LINE__);
    }
    else
    {
     mRenderTarget = RenderTarget;
     mCurrentState = mCurrentState & SHasRenderTarget;
    }
   }


   void compile()
   {
    
   }


   void compute()
   {
    // binds all static textures.
    // compute current kernel
    // release framebuffer attachment point from previous kernel.
   }


  private:

   unsigned int mCurrentState;

   Kernel * mPreviousKernel;
   Kernel * mCurrentKernel;

   Texture * mRenderTarget;

   typedef std::list<Texture *> TextureVector;
   TextureVector mTextureVector;
 };

}

#endif