SoColorPacker.h

/*=======================================================================
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 ***                        BORDEAUX, FRANCE                                        ***
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**=======================================================================*/
 
#ifndef SOCOLORPACKER_H
#define SOCOLORPACKER_H
 
#include <Inventor/sys/port.h>
#include <Inventor/SbBase.h>
#include <Inventor/threads/SbThreadMutex.h>
#include <Inventor/SbColor.h>
 
class SoCpuBufferObject;
 
class  SoColorPacker {
 
 public:
 
  //Constructor, makes a colorPacker with NULL packedColor pointer:
  SoColorPacker();
 
  // destructor, deletes packed color array
  ~SoColorPacker();
 
  uint32_t *getPackedColors() const {
    return packedColors;
  }
  SbBool diffuseMatch(uint64_t nodeId) {
    return (nodeId == diffuseNodeId);
  }
  SbBool transpMatch(uint64_t nodeId) {
    return (nodeId == transpNodeId);
  }
  void setNodeIds(uint64_t diffNodeId, uint64_t tNodeId) {
    diffuseNodeId = diffNodeId;
    transpNodeId = tNodeId;
  }
  int32_t getSize() {
    return packedArraySize;
  }
  void reallocate(int32_t size);
 
  static void exitClass();
 
private:
  static SoCpuBufferObject* convertBigEndianToSystem(SoCpuBufferObject* source);
 
  static void packedColorBigEndianToSbColor(SbColor& result, const uint32_t packedColor);
 
 private:
 
  // nodeids are used for testing cache validity
  uint64_t transpNodeId;
  uint64_t diffuseNodeId;
  // array of packed colors, or NULL if empty
  uint32_t *packedColors;
  // size of packed color array (not necessarily number of valid colors)
  int32_t packedArraySize;
 
  static SbThreadMutex *m_mutex;
 
};
 
#endif