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

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// **InsertLicense** code
//----------------------------------------------------------------------------------

//----------------------------------------------------------------------------------



#ifndef  _SO_IMAGE_SAMPLER_
#define  _SO_IMAGE_SAMPLER_

#include "SoShaderSystem.h"
#include "Inventor/nodes/SoSampler.h"
#include "Inventor/misc/SoUniformParameterBase.h"
#include <SoSFMLImage.h>

#ifdef MEVISLAB
#include <mlGLResources.h>
#endif

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

   SO_NODE_ABSTRACT_HEADER(SoImageSampler);


   SoEXTENDER public:

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

   SoINTERNAL public:

      static void   initClass();

   protected:
     
      virtual ~SoImageSampler();
      
      SoImageSampler();

      virtual void freeResources();

      virtual void clearTexturData();

      virtual void updateTextureHandle();

      virtual void updateTextureFilteringParameters();

      virtual void updateTextureWrappingParameters();
     
      virtual void uploadTextureData();

      virtual void uploadDummyTextureData(GLenum target);

      virtual void generateMipmap();

      virtual void updateSamplerInfo(SoUniformParameterBase *uniformBase, SoState *state);

      virtual void setGlTexImage(GLenum target, XVImageSize textureSize, GLint internalFormat, GLint format, GLenum textureDataType, const GLvoid* textureData);

      virtual void updateTextureData(bool force = false);

      virtual void imageChanged() = 0;

#ifdef MEVISLAB
      ml::GLTexture  _textureRes;
#define TEXTUREHANDLE (_textureRes.getHandle())
#else
      GLuint         _textureId;
#define TEXTUREHANDLE (_textureId)
#endif

      MLuint8       *_textureData;

      SbBool         _isTextureModified;

      SbSamplerInfo::TextureType _internTexFormat;

      XVImageSize    _textureSize;

      GLenum _target;

      SoUniformParameterBase::SamplerType _samplerType;
     
};

#endif  // _SO_IMAGE_SAMPLER_