SoCpuBufferFromVolumeReader.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#pragma once
 
#include <Inventor/devices/SoCpuBufferObject.h>
#include <LDM/tiles/SoBufferPropertiesInterface.h>
#include <LDM/tiles/SoLDMBufferObjectInterface.h>
#include <LDM/SoLDMTileID.h>
 
class SoDataSet;
class SoGLBufferObject;
class SoCpuBufferFromVolumeReaderImpl;
 
class  SoCpuBufferFromVolumeReader: public SoCpuBufferObject, public SoBufferPropertiesInterface, public SoLDMBufferObjectInterface
{
  SO_TYPED_CLASS_HEADER();
 
  // ----------------------- Public usage --------------------------------------
public:
 
  SoCpuBufferFromVolumeReader( SoDataSet* dataset, SoLDMTileID tileId );
 
  virtual void map( SoBufferObject* targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition, size_t mappingSize = SO_BUFFER_SIZE_ALL);
 
  virtual void map( SoCpuBufferObject* targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition = 0, size_t mappingSize = SO_BUFFER_SIZE_ALL );
 
  virtual void map( SoGLBufferObject* targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition = 0, size_t mappingSize = SO_BUFFER_SIZE_ALL );
 
  virtual void* map(SoBufferObject::AccessMode accessMode, size_t offset = 0, size_t count = SO_BUFFER_SIZE_ALL);
 
  virtual void unmap( SoCpuBufferObject* bufferObject );
 
  virtual void unmap( SoGLBufferObject* bufferObject );
 
  void unmap( SoBufferObject* bufferObject );
 
  virtual void unmap();
 
  bool getMinMax( double& min, double& max);
 
  size_t getRealSize() const;
 
private:
  virtual ~SoCpuBufferFromVolumeReader();
 
SoINTERNAL private:
  // Create internal uncompress version of the buffer
  virtual SoCpuBufferObject* createCachedBuffer();
 
  virtual void prefetchBuffer();
 
  friend class SoCpuBufferFromVolumeReaderImpl;
 
  SoCpuBufferFromVolumeReader( SoCpuBufferFromVolumeReaderImpl* impl );
 
private:
  SoCpuBufferFromVolumeReader() {}
};