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

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// **InsertLicense** code



#ifndef  _SO_ML_SAMPLER_
#define  _SO_ML_SAMPLER_

#include "SoShaderSystem.h"
#include "Inventor/nodes/SoImageSampler.h"
#include <Inventor/elements/SoMLImageElement.h>
#include <SoSFMLImage.h>


class SoSensor;
class SoFieldSensor;

SoEXTENDER class INVENTOR_SHADER_API SoMLSampler : public SoImageSampler
{
   typedef SoImageSampler inherited;

   SO_NODE_ABSTRACT_HEADER(SoMLSampler);

   public:

      SoSFMLImage  image;

      SoSFUInt32   startT;

      SoSFUInt32   startU;

   SoEXTENDER public:

      virtual void   GLRender(SoGLRenderAction *action);
 
      virtual void   updateParameter(SoUniformParameterBase *uniformBase, SoState *state);

   SoINTERNAL public:

      static  void   initClass();

   protected:

      SbSamplerInfo::TextureType _internTexFormat;
      

      SbMLImageProperties  _imgProps;

      SoMLSampler();

      virtual ~SoMLSampler();

      GLenum         MLToGLDataType(const MLDataType &dType);

      MLuint8       *loadAndReformatSubImg(XVImageSize pos, XVImageSize size);
      
      virtual void   texConfigChanged(SoSensor *sensor);

      virtual void   imageChanged();
      static  void   imageChangedCB(void *data, SoSensor *sensor);

      virtual void getSubimageProperties(XVImageSize inputSize, XVImageSize &subimageSize, XVImageSize &subimagePosition) = 0;

      virtual void getTextureDataFromImage(XVImageSize size, XVImageSize pos);

      void clampIntFieldValue(SoSFUInt32 &field, int minValue, int maxValue);

   private:

      SoFieldSensor *_imageSensor;

      SoFieldSensor *_startTSensor;
      SoFieldSensor *_startUSensor;
};

#endif  // _SO_ML_SAMPLER_