Inventor/devices/SoCpuBufferObject.h

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

#include <Inventor/devices/SoBufferObject.h>
#include <Inventor/devices/SoCpuContext.h>

class SoGLBufferObject;

class  SoCpuBufferObject : public SoBufferObject
{
  SO_TYPED_CLASS_HEADER();

  friend class SoGLBufferObject;

  // ----------------------- Public usage --------------------------------------

public:

  SoCpuBufferObject();

  SoCpuBufferObject(void *buffer, size_t size);

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

  virtual void unmap( SoBufferObject* bufferObject );

  virtual void* map( AccessMode accessMode );

  virtual void unmap();

  virtual void memcpy( SoBufferObject* sourceBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );

  virtual void memset( void* value, size_t valueSize = 1, size_t offset = 0, size_t count = SO_BUFFER_SIZE_ALL );

  virtual bool setSize( size_t size );

  virtual SoBufferObject* createInstance() const;

  virtual void clearInstance();

  void setBuffer(void *buffer, size_t size);

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

  virtual void unmap( SoCpuBufferObject* bufferObject );

  virtual void memcpy( SoCpuBufferObject* sourceBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );

  virtual void memcpy( SoGLBufferObject* sourceBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );

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

  virtual void unmap( SoGLBufferObject* bufferObject );

private:

  void copyToCpuBuffer( SoCpuBufferObject* targetBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );

  bool isBufferOwner() const;

  static void memcpyPtr2Ptr( void* dest, void* data, size_t dataSize, size_t count );

private:
  virtual ~SoCpuBufferObject();

  unsigned char* m_buffer;

private:

  bool m_isOwner;

  static bool m_useVirtualAlloc;

  int m_alignment;
};


// ----------------------- Inline functions --------------------------------------


//------------------------------------------------------------------------------
inline bool
SoCpuBufferObject::isBufferOwner() const
{
  return m_isOwner;
}

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

#endif // SOCPUBUFFEROBJECT_H

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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