SoMLSampler.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef SO_MLSAMPLER_H
#define SO_MLSAMPLER_H
 
 
 
#include "SoShaderSystem.h"
#include "Inventor/nodes/SoImageSampler.h"
#include <Inventor/elements/SoMLImageElement.h>
#include <SoSFMLImage.h>
 
 
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:
 
      void   GLRender(SoGLRenderAction *action) override;
 
      void   updateParameter(SoUniformParameterBase *uniformBase, SoState *state) override;
 
   SoINTERNAL public:
 
      static  void   initClass();
 
   protected:
 
      SbSamplerInfo::TextureType _internTexFormat;
 
 
      SbMLImageProperties  _imgProps;
 
      SoMLSampler();
 
      ~SoMLSampler() override;
 
      GLenum         MLToGLDataType(const MLDataType &dType);
 
      MLuint8       *loadAndReformatSubImg(const XVImageSize &pos, const XVImageSize &size);
 
      void   texConfigChanged(SoField* field) override;
 
      void   imageChanged() override;
      void   imageChangedCB(SoField* field);
 
      virtual void   calcSubImgProps(XVImageSize &subImgPosition, XVImageSize &subImgSize) = 0;
 
      virtual void   getTextureDataFromImage(const XVImageSize &pos, const XVImageSize &size);
 
};
 
#endif  // _SO_ML_SAMPLER_