#ifndef __HGTIFF_H__
#define __HGTIFF_H__

#include "../base/HGDef.h"
#include "../base/HGBaseErr.h"
#include "HGImgFmtErr.h"
#include "../base/HGImage.h"

HG_DECLARE_HANDLE(HGTiffReader);
HG_DECLARE_HANDLE(HGTiffWriter);

typedef struct
{
	HGUInt width;
	HGUInt height;
	HGUShort bitsPerSample;
	HGUShort samplesPerPixel;
	HGUShort compression;

	HGUShort resolutionUnit;
	HGFloat xResolution;
	HGFloat yResolution;
}UPTiffLoadInfo;

typedef struct
{
	HGUShort resolutionUnit;
	HGFloat xResolution;
	HGFloat yResolution;
}UPTiffSaveInfo;

HGEXPORT HGResult HGAPI HGImgFmt_CheckTiffFile(const HGChar* fileName, HGBool* isTiff);

HGEXPORT HGResult HGAPI HGImgFmt_OpenTiffReader(const HGChar* fileName, HGTiffReader* reader);

HGEXPORT HGResult HGAPI HGImgFmt_CloseTiffReader(HGTiffReader reader);

HGEXPORT HGResult HGAPI HGImgFmt_GetTiffPageCount(HGTiffReader reader, HGUInt* count);

HGEXPORT HGResult HGAPI HGImgFmt_LoadImageFromTiffReader(HGTiffReader reader, HGUInt index, UPTiffLoadInfo* info,
	HGUInt imgType, HGUInt imgOrigin, HGImage* image);

HGEXPORT HGResult HGAPI HGImgFmt_OpenTiffWriter(const HGChar* fileName, HGTiffWriter* writer);

HGEXPORT HGResult HGAPI HGImgFmt_CloseTiffWriter(HGTiffWriter writer);

HGEXPORT HGResult HGAPI HGImgFmt_SaveImageToTiffWriter(HGTiffWriter writer, HGImage image, const UPTiffSaveInfo* info);

#endif /* __HGTIFF_H__ */