OITLinkedList.hh

/*===========================================================================*\
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*                              OpenFlipper                                   *
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/*===========================================================================*\
*                                                                            *
*   $Revision$                                                       *
*   $LastChangedBy$                                                *
*   $Date$                     *
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\*===========================================================================*/


#pragma once


#include <QObject>

#include <OpenFlipper/BasePlugin/BaseInterface.hh>
#include <OpenFlipper/BasePlugin/RenderInterface.hh>
#include <OpenFlipper/BasePlugin/LoggingInterface.hh>

#include <ACG/GL/IRenderer.hh>
#include <ACG/GL/globjects.hh>
#include <ACG/GL/FBO.hh>



class OITLinkedList : public QObject, BaseInterface, RenderInterface, LoggingInterface, ACG::IRenderer
{
  Q_OBJECT
    Q_INTERFACES(BaseInterface)
    Q_INTERFACES(RenderInterface)
    Q_INTERFACES(LoggingInterface)

#if QT_VERSION >= 0x050000
  Q_PLUGIN_METADATA(IID "org.OpenFlipper.Plugins.Plugin-Render-OITLinkedList")
#endif

signals:
  // LoggingInterface
  void log(Logtype _type, QString _message);
  void log(QString _message);


public:
  OITLinkedList();
  ~OITLinkedList();

  QString name() { return (QString("OITLinkedList")); };
  QString description( ) { return (QString(tr("Order independent transparency with per pixel linked lists"))); };

public slots:
  QString version() { return QString("1.0"); };

  QString renderObjectsInfo(bool _outputShaderInfo);

private slots:

  //BaseInterface
  void initializePlugin();
  void exit(){}

  // RenderInterface
  void render(ACG::GLState* _glState, Viewer::ViewerProperties& _properties);
  QString rendererName() {return QString("OITLinkedList");}
  void supportedDrawModes(ACG::SceneGraph::DrawModes::DrawMode& _mode) {_mode = ACG::SceneGraph::DrawModes::DEFAULT;}
  
  QString checkOpenGL();


private:


  void prepareBuffers(int w, int h);

  void renderOIT(int w, int h, bool multisampled);



  // counter for number of processed fragments
  ACG::AtomicCounter fragCounter_;

  // stores start offset into FLBuffer
  ACG::TextureBuffer startOffsetBuffer_;

  // ABuffer: per pixel linked list buffer
  ACG::TextureBuffer ABuffer_;

};