SoBufferPropertiesInterface.h

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/*=======================================================================
** Author      : VSG (MMM YYYY)
**=======================================================================*/
#if !defined SOBUFFERPROPERTIESINTERFACE_H
#define SOBUFFERPROPERTIESINTERFACE_H
 
#include <Inventor/SbBase.h>
#include <Inventor/devices/SoBufferObject.h>
 
class SoCpuBufferObject;
 
 
class  SoBufferPropertiesInterface
{
 
  // ----------------------- Public usage --------------------------------------
public:
 
  SoBufferPropertiesInterface();
 
  virtual ~SoBufferPropertiesInterface();
 
  virtual bool getMinMax(double& min, double& max) = 0;
 
  virtual size_t getRealSize() const = 0;
 
private:
 
  // Set the cache id allocated by the DataSet
  virtual void setCacheSignature(const uint64_t& cacheSignature);
 
  // Retrieve cache id allocated by the DataSet
  uint64_t getCacheSignature();
 
SoINTERNAL private:
 
  void invalidateCache();
 
  // Tell if the Min/Max values are available
  bool m_bMinMaxIsSet;
 
  // Real size of the buffer (once uncompressed)
  size_t m_realSize;
 
  // Min and Max value of the buffer
  double m_dMin, m_dMax;
 
  // id of the buffer in the mapping of Inventor base
  uint64_t m_mappingId;
 
  // Check the given access mode is supported by buffer
  bool checkAccessMode( const SoBufferObject::AccessMode accessMode );
 
  // Internal unmap method. As long as code is the same
  // for all buffer that inherits of this interface
  void internalUnmap( SoBufferObject* bufferObject );
 
  // Unique Id allocated by volumeData;
  uint64_t m_cacheSignature;
 
  // Internal buffer Management
  SoCpuBufferObject* m_internalPtrRef;
  uint64_t m_internalPtrRefCount;
 
  friend class SoCpuBufferCompressedImpl;
  friend class SoCpuBufferUniformImpl;
  friend class SoCpuBufferBitSetImpl;
  friend class SoCpuBufferFromVolumeReaderImpl;
};
 
#endif //SOBUFFERPROPERTIESINTERFACE_H