SO3HdrHandler.h

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/*
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This source file is part of OpenSpace3D
For the latest info, see http://www.openspace3d.com
 
Copyright (c) 2012 I-maginer
 
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser 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 Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser 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, or go to
http://www.gnu.org/copyleft/lesser.txt
 
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*/
 
#ifndef __SO3_HDR_HANDLER_H__
#define __SO3_HDR_HANDLER_H__
 
#include "SCOLBasic/SO3Prerequisites.h"
#include "SO3Renderer/SO3CompositorLogic.h"
 
namespace SO3
{
 
class SHdrHandler
{
public:
  static float mBlurAmount;
  static float mEffectAmount;
  static float mGamma;
protected:
private:
  static bool compositorCreated;
 
  bool isEnable;
  bool isSupported;
  SViewPort* targetViewport;
  Ogre::String targetViewportScheme;
  Ogre::CompositorManager* ogreCompositorManager;
  Ogre::CompositorInstance* inputCompositorInstance;
 
public:
  static void Reset();
 
  SHdrHandler(SViewPort* targetViewportInstance);
 
  ~SHdrHandler();
 
  bool GetEnable();
 
  void SetEnable(bool enable);
 
  void SetBlurAmount(float amount);
 
  const float GetBlurAmount();
 
  void SetEffectAmount(float amount);
  
  const float GetEffectAmount();
 
  void SetGamma(float gamma);
  
  const float GetGamma();
 
private:
  SHdrHandler();
 
  void GenerateRenderQuadVertexShader();
 
  void CreateCompositors();
 
  void GenerateHdrCompositor();
 
};
 
//The compositor logic for the hdr compositor
class SHdrLogic : public SCompositorListenerFactoryLogic
{
protected:
        virtual Ogre::CompositorInstance::Listener* createListener(Ogre::CompositorInstance* instance);
};
 
class SHdrListener : public Ogre::CompositorInstance::Listener
{
public:
        SHdrListener();
        virtual ~SHdrListener();
        void notifyCompositor(Ogre::CompositorInstance* instance);
        virtual void notifyMaterialSetup(Ogre::uint32 pass_id, Ogre::MaterialPtr &mat);
        virtual void notifyMaterialRender(Ogre::uint32 pass_id, Ogre::MaterialPtr &mat);
protected:
private:
public:
protected:
        int mBloomSize;
        // Array params - have to pack in groups of 4 since this is how Cg generates them
        // also prevents dependent texture read problems if ops don't require swizzle
        float mBloomTexWeights[15][4];
        float mBloomTexOffsetsHorz[15][4];
        float mBloomTexOffsetsVert[15][4];
private:
};
 
}
 
#endif