SoImageSampler.h

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/*************************************************************************************
**
** Copyright 2012, 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_IMAGE_SAMPLER_H
#define SO_IMAGE_SAMPLER_H
 
 
 
 
#include "SoShaderSystem.h"
#include "Inventor/nodes/SoSampler.h"
#include "Inventor/misc/SoUniformParameterBase.h"
#include <SoSFMLImage.h>
#include <mlGLResources.h>
 
SoEXTENDER class INVENTOR_SHADER_API SoImageSampler : public SoSampler
{
   typedef SoSampler inherited;
 
   SO_NODE_ABSTRACT_HEADER(SoImageSampler);
 
   SoEXTENDER public:
 
      void  updateParameter(SoUniformParameterBase *uniformBase, SoState *state) override;
 
   SoINTERNAL public:
 
      static void   initClass();
 
   protected:
 
      SoImageSampler();
 
      ~SoImageSampler() override;
 
      virtual void freeTextureBuffer();
 
      virtual void updateTextureHandle();
 
      virtual void updateTextureFilteringParameters();
 
      virtual void updateTextureWrappingParameters();
 
      virtual void uploadTextureBuffer();
 
      virtual void uploadDummyTexture(GLenum target);
 
      virtual void generateMipmap();
 
      virtual void setGLTexImage(GLenum target, const XVImageSize &textureSize, GLint internalFormat, GLint format, GLenum textureDataType, const GLvoid *textureData) = 0;
 
      virtual void updateTextureBuffer();
 
      virtual void updateSamplerInfo(SoUniformParameterBase *uniformBase, SoState *state);
 
      virtual void imageChanged() = 0;
 
      ml::GLTexture  _textureRes;
 
      MLuint8       *_textureBuffer;
 
      SbBool         _isTextureModified;
 
      SbSamplerInfo::TextureType _internTexFormat;
 
      XVImageSize    _textureSize;
 
      GLenum _target;
 
      SoUniformParameterBase::SamplerType _samplerType;
 
};
 
#endif  // _SO_IMAGE_SAMPLER_