68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
#ifndef __HGIMGFMT_H__
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#define __HGIMGFMT_H__
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#include "../base/HGDef.h"
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#include "../base/HGBaseErr.h"
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#include "HGImgFmtErr.h"
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#include "../base/HGImage.h"
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#include "HGTiff.h"
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HG_DECLARE_HANDLE(HGImgFmtReader);
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HG_DECLARE_HANDLE(HGImgFmtWriter);
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/* JPEG */
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#define HGIMGFMT_TYPE_JPEG 1L
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/* BMP */
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#define HGIMGFMT_TYPE_BMP 2L
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/* PNG */
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#define HGIMGFMT_TYPE_PNG 3L
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/* TIFF */
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#define HGIMGFMT_TYPE_TIFF 4L
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/* PDF */
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#define HGIMGFMT_TYPE_PDF 5L
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/* OFD */
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#define HGIMGFMT_TYPE_OFD 6L
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typedef struct
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{
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HGUInt width; /* 图像宽 */
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HGUInt height; /* 图像高 */
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HGUInt bpp; /* 每像素比特数 */
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HGUInt xDpi; /* x-DPI */
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HGUInt yDpi; /* y-DPI */
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}HGImgFmtLoadInfo;
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typedef struct
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{
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HGUInt jpegQuality; /* jpeg质量 */
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HGUInt tiffCompression; /* tiff压缩方式, 见HGIMGFMT_TIFFCOMP_* */
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HGUInt tiffJpegQuality; /* tiff-jpeg质量 */
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}HGImgFmtSaveInfo;
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HGEXPORT HGResult HGAPI HGImgFmt_GetImgFmtType(const HGChar* fileName, HGUInt* fmtType);
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HGEXPORT HGResult HGAPI HGImgFmt_GetImgFmtTypeFromFileName(const HGChar* fileName, HGUInt* fmtType);
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HGEXPORT HGResult HGAPI HGImgFmt_IsMultiImgFmtType(HGUInt fmtType, HGBool *isMulti);
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HGEXPORT HGResult HGAPI HGImgFmt_LoadImage(const HGChar *fileName, HGUInt fmtType, HGImgFmtLoadInfo *info,
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HGUInt imgType, HGUInt imgOrigin, HGImage *image);
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HGEXPORT HGResult HGAPI HGImgFmt_SaveImage(HGImage image, HGUInt fmtType, const HGImgFmtSaveInfo *info, const HGChar *fileName);
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HGEXPORT HGResult HGAPI HGImgFmt_OpenImageReader(const HGChar *fileName, HGUInt fmtType, HGImgFmtReader *reader);
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HGEXPORT HGResult HGAPI HGImgFmt_CloseImageReader(HGImgFmtReader reader);
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HGEXPORT HGResult HGAPI HGImgFmt_GetImagePageCount(HGImgFmtReader reader, HGUInt *count);
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HGEXPORT HGResult HGAPI HGImgFmt_LoadImageFromReader(HGImgFmtReader reader, HGUInt index, HGImgFmtLoadInfo *info,
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HGUInt imgType, HGUInt imgOrigin, HGImage *image);
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HGEXPORT HGResult HGAPI HGImgFmt_OpenImageWriter(const HGChar *fileName, HGUInt fmtType, HGImgFmtWriter *writer);
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HGEXPORT HGResult HGAPI HGImgFmt_CloseImageWriter(HGImgFmtWriter writer);
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HGEXPORT HGResult HGAPI HGImgFmt_SaveImageToWriter(HGImgFmtWriter writer, HGImage image, const HGImgFmtSaveInfo *info);
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#endif /* __HGIMGFMT_H__ */ |