SO3RenderToTexture.h

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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
 
-----------------------------------------------------------------------------
*/
 
#ifndef __SO3_RENDER_TO_TEXTURE_H__
#define __SO3_RENDER_TO_TEXTURE_H__
 
#include "SCOLBasic/SO3Prerequisites.h"
#include "SO3SceneGraph/SO3NodeScol.h"
 
namespace SO3
{
 
class _SO3_Export SRenderToTexture : public SNode,
                                     public Ogre::FrameListener,
                                     public Ogre::ManualResourceLoader,
                                     public Ogre::RenderTargetListener
{
public:
protected:
private:
  Ogre::Camera* rttCamera;
  Ogre::TexturePtr rttTexture;
        Ogre::RenderTarget* rttTarget;
  Ogre::MaterialPtr material;
  Ogre::TextureUnitState* textureUnitState;
  Ogre::TexturePtr oldTexture;
  unsigned int size;
  bool state;
  bool autoUpdate;
  bool needUpdate;
  bool needTextureUpdate;
  bool renderingEnable;
  float cameraOriginalRatio;
  std::string materialScheme;
  SCompositorMap compList;
 
public:
  SRenderToTexture(SScene* parent, const std::string& rttName, SCamera* povCamera);
 
  ~SRenderToTexture();
 
  void SetMaterial(SMaterial* targetMaterial, const int& targetTechnique, const int& targetPass, const int& targetTextureUnit);
 
  void SetMaterialScheme(std::string scheme);
 
  void SetSize(const unsigned int& newSize);
 
  unsigned int GetSize();
 
  void SetEnable(const bool& newState);
 
  bool GetEnable();
 
  void SetAutoUpdate(const bool& newAutoUpdateValue);
 
  bool GetAutoUpdate();
 
  void Update();
 
  SCompositor* CreateCompositor(const std::string& newCompositorName, const std::string& newSchemeName);
 
  void DeleteCompositor(SCompositor* existingCompositor);
 
  void DeleteCompositor(const std::string& existingCompositorName);
 
  SCompositor* GetCompositor(const std::string& compositorName);
 
  const SCompositorMap& GetCompositorList() const;
 
  void ClearCompositors();
 
  virtual bool frameStarted(const Ogre::FrameEvent& evt);
 
  virtual bool frameEnded(const Ogre::FrameEvent& evt);
 
  virtual void loadResource(Ogre::Resource* resource);
 
        virtual void windowResized(Ogre::RenderWindow* rw);
 
  virtual void preViewportUpdate(const Ogre::RenderTargetViewportEvent& evt);
 
  virtual void postViewportUpdate(const Ogre::RenderTargetViewportEvent& evt);
protected:
  void AddCompositor(SCompositor* existingCompositor);
 
  void RemoveCompositor(SCompositor* existingCompositor);
 
  void RemoveCompositor(const std::string& compositorName);
private:
  SRenderToTexture();
 
  void SetTextureUnit();
 
  void ResetTextureUnit();
 
  void _CreateRenderTexture(const unsigned int& newSize);
 
  void _DeleteRenderTexture();
 
  void EnableRendering();
 
  void DisableRendering();
 
  void UpdateCompositorViewport(Ogre::Viewport* vp);
};
 
}
 
#endif