MeVisLab/Standard/Sources/Inventor/SoShader/Inventor/nodes/SoFramebufferSampler.h

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// **InsertLicense** code



#ifndef  _SO_FRAMEBUFFER_SAMPLER_
#define  _SO_FRAMEBUFFER_SAMPLER_

#include "SoShaderSystem.h"
#include "Inventor/nodes/SoSampler.h"
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/fields/SoSFColor.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFBool.h>
#include <Inventor/fields/SoSFTrigger.h>

class SoGLFramebufferObject;
class SoGLTexture;
class SoGLRenderbuffer;
class SoFieldSensor;
class SoSensor;

SoEXTENDER class INVENTOR_SHADER_API SoFramebufferSampler : public SoSampler
{
   typedef SoSampler inherited;

   SO_NODE_ABSTRACT_HEADER(SoFramebufferSampler);

   public:

      enum ColorBufferFormat {
        RGB     = GL_RGB,
        RGB8    = GL_RGB8,
        RGB16   = GL_RGB16,
        RGB16F  = GL_RGB16F_ARB,
        RGB32F  = GL_RGB32F_ARB,
        RGBA    = GL_RGBA,
        RGBA8   = GL_RGBA8,
        RGBA16  = GL_RGBA16,
        RGBA16F = GL_RGBA16F_ARB,
        RGBA32F = GL_RGBA32F_ARB
      };

      enum DepthBufferTarget {
        NONE         = 0,
        RENDERBUFFER = 1,
        TEXTURE      = 2
      };

      SoSFEnum  colorBufferFormat;

      SoSFEnum  depthBufferTarget;

      SoSFBool  stencilBuffer;

      SoSFColor clearColor;

      SoSFFloat clearAlpha;

      SoSFEnum  wrapT;

      SoSFBool  useSizeStateHints;

      SoSFBool  useFormatStateHints;

      SoSFTrigger takeSnapshot;

      SoFramebufferSampler();

   protected:

      SbBool            _fldValUseSizeHints;
      SbBool            _fldValUseFormatHints;
      ColorBufferFormat _fldValColorBufferFormat;
      DepthBufferTarget _fldValDepthBufferTarget;
      SbBool            _fldValStencilBuffer;

      SbBool            _rebuild;
      SbBool            _takeSnapshot;
      int32_t           _dataFormat;

      SbString          _depthTextureName;

      SoGLFramebufferObject       *_framebufferObject;
      SoGLTexture                 *_colorBuffer;
      SoGLRenderbuffer            *_depthBufferRBU;
      SoGLTexture                 *_depthBufferTEX;
      SoGLRenderbuffer            *_stencilBuffer;

      ~SoFramebufferSampler();

      virtual void   applyRenderAction(SoState *);

      virtual void   nameChanged(SoSensor *sensor);

   SoEXTENDER public:

      virtual void   GLRender(SoGLRenderAction *action);

      virtual void   getBoundingBox(SoGetBoundingBoxAction *action);

   SoINTERNAL public:

      static void    initClass();

   private:

      SoFieldSensor *_snapshotSensor;
      static void snapshotChangedCB(void *data, SoSensor *sensor);
};

#endif  // _SO_FRAMEBUFFER_SAMPLER_