SoCpuBufferBitSet.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>
 
class SoGLBufferObject;
class SoCpuBufferUniform;
class SoCpuBufferBitSetImpl;
 
class  SoCpuBufferBitSet: public SoCpuBufferObject, public SoBufferPropertiesInterface, public SoLDMBufferObjectInterface
{
  SO_TYPED_CLASS_HEADER();
 
  // ----------------------- Public usage --------------------------------------
public:
 
  SoCpuBufferBitSet();
 
  SoCpuBufferBitSet(SoCpuBufferObject* cpuBuffer);
 
  virtual SoBufferObject* createInstance() const;
 
  virtual void map( SoBufferObject* targetBufferObject, SoBufferObject::AccessMode accessMode, size_t startPosition = 0, 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 );
 
  virtual void unmap( SoBufferObject* bufferObject );
 
  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 getMinMax( double& min, double& max);
 
  virtual void setMinMax( const double& min, const double& max);
  
  virtual size_t getRealSize() const;
 
private:
 
  void memcpy( SoCpuBufferBitSet* sourceBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );
 
  void memcpy( SoCpuBufferUniform* sourceBufferObject, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );
 
  void memcpyInternal( SoBufferObject* sourceBufferObject, size_t dataSize, size_t destOffset = 0, size_t sourceOffset = 0, size_t copySize = SO_BUFFER_SIZE_ALL );
 
  unsigned char* mapRawBitSet(SoBufferObject::AccessMode accessMode);
 
  void unmapRawBitSet();
 
  static inline unsigned char getBit(unsigned char* dataPtr, const int pos)
  { return (((dataPtr[pos>>0x3]) >> (7- (pos & 0x7))) & 1); }
 
  // Set the cache id allocated by the DataSet
  virtual void setCacheSignature(const uint64_t& cacheSignature);
 
  static inline void setBit(unsigned char* dataPtr, const size_t pos, bool v)
  {
    unsigned char& val = dataPtr[pos/8];
    const unsigned char mask = 0x80 >> pos%8;
    const unsigned char bitChar = (unsigned char)v << (7 - pos%8);
    val = (val & ~mask) | bitChar;
  }
 
SoINTERNAL private:
  friend class SoCpuBufferBitSetImpl;
 
  SoCpuBufferBitSet(SoCpuBufferBitSetImpl* impl);
 
private:
  virtual ~SoCpuBufferBitSet();
};