LDM/tiles/SoCpuBufferFromVolumeReader.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#if !defined SOCPUBUFFERFROMVOLUMEREADER_H
#define SOCPUBUFFERFROMVOLUMEREADER_H

class SoVolumeReader;
class SoDataSet;

// Inventor include
#include <Inventor/SbDataType.h> 
#include <Inventor/devices/SoCpuBufferObject.h>

// LDM include
#include <LDM/SoLDMTileID.h>
#include <LDM/tiles/SoBufferPropertiesInterface.h>
#include <LDM/tiles/SoLDMBufferObjectInterface.h>

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, AccessMode accessMode, size_t startPosition, size_t mappingSize = SO_BUFFER_SIZE_ALL);

  virtual void map( SoCpuBufferObject* targetBufferObject, AccessMode accessMode, size_t startPosition = 0, size_t mappingSize = SO_BUFFER_SIZE_ALL );

  virtual void map( SoGLBufferObject* targetBufferObject, AccessMode accessMode, size_t startPosition = 0, size_t mappingSize = SO_BUFFER_SIZE_ALL );


  virtual void* map( AccessMode accessMode );
 
  virtual void unmap( SoCpuBufferObject* bufferObject );

  virtual void unmap( SoGLBufferObject* bufferObject );

  void unmap( SoBufferObject* bufferObject );

  virtual void unmap();
    
  virtual bool  setSize( size_t size );

  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();

private:

  SoLDMTileID m_tileId;
  SoDataSet* m_ds;

  SoCpuBufferFromVolumeReader() {}

};

#endif //SOCPUBUFFERFROMVOLUMEREADER_H

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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