SoHDRImageRW.h

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**=======================================================================*/
/*=======================================================================
** Author      : D. DALLA-ROSA(Jul 2010)
**=======================================================================*/
 
 
#if !defined(SO_HDR_IMAGERW_H)
#define SO_HDR_IMAGERW_H
 
#include <Inventor/image/SoRasterImageRW.h>
#include <Inventor/threads/SbThreadMutex.h>
 
 
class  SoHDRImageRW : public SoRasterImageRW {
 
  SO_IMAGE_RASTER_RW_HEADER()
 
public:
 
  SoHDRImageRW();
 
  virtual ~SoHDRImageRW();
 
  virtual SbBool open(SoRasterImageIO* rasterImageIO, OpenMode openMode);
 
  virtual SbBool write(SbRasterImage* rasterImage, unsigned int xPos = 0, unsigned int yPos = 0);
 
  virtual SbBool writeFooter();
 
  virtual SbBool read(SbRasterImage* rasterImage, SbBool infoOnly = FALSE); 
  virtual SbBool isMultipleBufferInverted() const;
 
  virtual SoRasterImageRW::WriteCapability getWriteCapability() const;
 
  virtual SoRasterImageRW::ReadCapability getReadCapability() const;
 
private:
  virtual bool supportsAlpha() const;
 
private:
 
  virtual void createSuffixList();
 
private:
  static SbThreadMutex s_mutex;
 
  static SbBool readHDRIBuffer(FILE* file, unsigned char* scan, int xmax);
 
  static SbBool checkHDRIHeader(FILE* file, int &ymax, int &xmax);
 
  static SbBool writeData(FILE* file, SbRasterImage* rasterImage );
 
  static SbBool writePixels(FILE* file, unsigned char* data, unsigned long size);
 
  static SbBool writePixelsRLE(FILE* file, unsigned char* data, unsigned long size);
};
 
#endif // SO_HDR_IMAGERW_H