TGLFormat.h

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// @(#)root/gl:$Id$
// Author:  Timur Pocheptsov, Jun 2007
 
/*************************************************************************
 * Copyright (C) 1995-2004, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/
 
#ifndef ROOT_TGLFormat
#define ROOT_TGLFormat
 
#include "TVirtualGL.h"
#include "Rtypes.h"
 
#include <vector>
 
/*
   TGLFormat class describes the pixel format of a drawing surface.
   It's a generic analog of PIXELFORMATDESCRIPTOR (win32) or
   array of integer constants array for glXChooseVisual (X11).
   This class is in a very preliminary state, different
   options have not been tested yet, only defaults.
 
   Surface can be:
   -RGBA
   -with/without depth buffer
   -with/without stencil buffer
   -with/without accum buffer
   -double/single buffered
*/
 
class TGLFormat
{
private:
   Bool_t fDoubleBuffered;
   Bool_t fStereo;
   Int_t  fDepthSize;
   Int_t  fAccumSize;
   Int_t  fStencilSize;
   Int_t  fSamples;
 
   static std::vector<Int_t> fgAvailableSamples;
 
   static Int_t GetDefaultSamples();
   static void  InitAvailableSamples();
 
public:
   TGLFormat();
   TGLFormat(Rgl::EFormatOptions options);
 
   //Virtual dtor only to supress warnings from g++ -
   //ClassDef adds virtual functions, so g++ wants virtual dtor.
   virtual ~TGLFormat();
 
   Bool_t operator == (const TGLFormat &rhs)const;
   Bool_t operator != (const TGLFormat &rhs)const;
 
   Int_t  GetDepthSize()const;
   void   SetDepthSize(Int_t depth);
   Bool_t HasDepth()const;
 
   Int_t  GetStencilSize()const;
   void   SetStencilSize(Int_t stencil);
   Bool_t HasStencil()const;
 
   Int_t  GetAccumSize()const;
   void   SetAccumSize(Int_t accum);
   Bool_t HasAccumBuffer()const;
 
   Bool_t IsDoubleBuffered()const;
   void   SetDoubleBuffered(Bool_t db);
 
   Bool_t IsStereo()const;
   void   SetStereo(Bool_t db);
 
   Int_t  GetSamples()const;
   void   SetSamples(Int_t samples);
   Bool_t HasMultiSampling()const;
 
   ClassDef(TGLFormat, 0); // Describes GL buffer format.
};
 
#endif