code_app/imgfmt/HGImgFmt.cpp

1226 lines
30 KiB
C++

#include "HGImgFmt.h"
#include "HGJpeg.h"
#include "HGBmp.h"
#include "HGPng.h"
#include "HGTiff.h"
#include "HGPdf.h"
#include "HGOfd.h"
#include "../base/HGInc.h"
#include <string>
struct HGImgFmtReaderImpl
{
HGImgFmtReaderImpl()
{
fmtType = 0;
handle = NULL;
}
std::string fileName;
HGUInt fmtType;
HGPointer handle;
};
struct HGImgFmtWriterImpl
{
HGImgFmtWriterImpl()
{
fmtType = 0;
handle = NULL;
write = HGFALSE;
}
std::string fileName;
HGUInt fmtType;
HGPointer handle;
HGBool write; // 用于标记JPEG、BMP和PNG是否已经写入
};
HGResult HGAPI HGImgFmt_GetImgFmtType(const HGChar* fileName, HGUInt* fmtType)
{
if (NULL == fileName || NULL == fmtType)
{
return HGBASE_ERR_INVALIDARG;
}
HGBool isJpeg = HGFALSE;
HGImgFmt_CheckJpegFile(fileName, &isJpeg);
if (isJpeg)
{
*fmtType = HGIMGFMT_TYPE_JPEG;
return HGBASE_ERR_OK;
}
HGBool isBmp = HGFALSE;
HGImgFmt_CheckBmpFile(fileName, &isBmp);
if (isBmp)
{
*fmtType = HGIMGFMT_TYPE_BMP;
return HGBASE_ERR_OK;
}
HGBool isPng = HGFALSE;
HGImgFmt_CheckPngFile(fileName, &isPng);
if (isPng)
{
*fmtType = HGIMGFMT_TYPE_PNG;
return HGBASE_ERR_OK;
}
HGBool isTiff = HGFALSE;
HGImgFmt_CheckTiffFile(fileName, &isTiff);
if (isTiff)
{
*fmtType = HGIMGFMT_TYPE_TIFF;
return HGBASE_ERR_OK;
}
HGBool isPdf = HGFALSE;
HGImgFmt_CheckPdfFile(fileName, &isPdf);
if (isPdf)
{
*fmtType = HGIMGFMT_TYPE_PDF;
return HGBASE_ERR_OK;
}
HGBool isOfd = HGFALSE;
HGImgFmt_CheckOfdFile(fileName, &isOfd);
if (isOfd)
{
*fmtType = HGIMGFMT_TYPE_OFD;
return HGBASE_ERR_OK;
}
return HGBASE_ERR_FAIL;
}
HGResult HGAPI HGImgFmt_GetImgFmtTypeFromFileName(const HGChar* fileName, HGUInt* fmtType)
{
if (NULL == fileName || NULL == fmtType)
{
return HGBASE_ERR_INVALIDARG;
}
const char* p = strrchr(fileName, '.');
if (NULL == p)
{
return HGBASE_ERR_FAIL;
}
#if defined(HG_CMP_MSC)
if (0 == _stricmp(p, ".jpe") || 0 == _stricmp(p, ".jpg") || 0 == _stricmp(p, ".jpeg"))
{
*fmtType = HGIMGFMT_TYPE_JPEG;
return HGBASE_ERR_OK;
}
if (0 == _stricmp(p, ".bmp") || 0 == _stricmp(p, ".dib"))
{
*fmtType = HGIMGFMT_TYPE_BMP;
return HGBASE_ERR_OK;
}
if (0 == _stricmp(p, ".png"))
{
*fmtType = HGIMGFMT_TYPE_PNG;
return HGBASE_ERR_OK;
}
if (0 == _stricmp(p, ".tif") || 0 == _stricmp(p, ".tiff"))
{
*fmtType = HGIMGFMT_TYPE_TIFF;
return HGBASE_ERR_OK;
}
if (0 == _stricmp(p, ".pdf"))
{
*fmtType = HGIMGFMT_TYPE_PDF;
return HGBASE_ERR_OK;
}
if (0 == _stricmp(p, ".ofd"))
{
*fmtType = HGIMGFMT_TYPE_OFD;
return HGBASE_ERR_OK;
}
#else
if (0 == strcasecmp(p, ".jpe") || 0 == strcasecmp(p, ".jpg") || 0 == strcasecmp(p, ".jpeg"))
{
*fmtType = HGIMGFMT_TYPE_JPEG;
return HGBASE_ERR_OK;
}
if (0 == strcasecmp(p, ".bmp") || 0 == strcasecmp(p, ".dib"))
{
*fmtType = HGIMGFMT_TYPE_BMP;
return HGBASE_ERR_OK;
}
if (0 == strcasecmp(p, ".png"))
{
*fmtType = HGIMGFMT_TYPE_PNG;
return HGBASE_ERR_OK;
}
if (0 == strcasecmp(p, ".tif") || 0 == strcasecmp(p, ".tiff"))
{
*fmtType = HGIMGFMT_TYPE_TIFF;
return HGBASE_ERR_OK;
}
if (0 == strcasecmp(p, ".pdf"))
{
*fmtType = HGIMGFMT_TYPE_PDF;
return HGBASE_ERR_OK;
}
if (0 == strcasecmp(p, ".ofd"))
{
*fmtType = HGIMGFMT_TYPE_OFD;
return HGBASE_ERR_OK;
}
#endif
return HGBASE_ERR_FAIL;
}
HGResult HGAPI HGImgFmt_IsMultiImgFmtType(HGUInt fmtType, HGBool* isMulti)
{
if (fmtType < HGIMGFMT_TYPE_JPEG || fmtType > HGIMGFMT_TYPE_OFD || NULL == isMulti)
{
return HGBASE_ERR_INVALIDARG;
}
if (HGIMGFMT_TYPE_JPEG == fmtType || HGIMGFMT_TYPE_BMP == fmtType || HGIMGFMT_TYPE_PNG == fmtType)
*isMulti = HGFALSE;
else
*isMulti = HGTRUE;
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_LoadImage(const HGChar* fileName, HGUInt fmtType, HGImgFmtLoadInfo* info,
HGUInt imgType, HGUInt imgOrigin, HGImage* image)
{
if (fmtType > HGIMGFMT_TYPE_OFD)
{
return HGBASE_ERR_INVALIDARG;
}
if (HGIMGFMT_TYPE_JPEG == fmtType)
{
HGJpegLoadInfo jpegInfo;
HGResult ret = HGImgFmt_LoadJpegImage(fileName, &jpegInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = jpegInfo.width;
info->height = jpegInfo.height;
info->bpp = jpegInfo.numComponents * 8;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_JPEGDENUNIT_INCH == jpegInfo.densityUnit)
{
info->xDpi = jpegInfo.xDensity;
info->yDpi = jpegInfo.yDensity;
}
else if (HGIMGFMT_JPEGDENUNIT_CENTIMETER == jpegInfo.densityUnit)
{
info->xDpi = (uint32_t)((double)jpegInfo.xDensity / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)jpegInfo.yDensity / 0.393700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_BMP == fmtType)
{
HGBmpLoadInfo bmpInfo;
HGResult ret = HGImgFmt_LoadBmpImage(fileName, &bmpInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = bmpInfo.width;
info->height = bmpInfo.height;
info->bpp = bmpInfo.bitCount;
info->xDpi = (uint32_t)((double)bmpInfo.xPelsPerMeter / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)bmpInfo.yPelsPerMeter / 39.3700787 + 0.5);
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_PNG == fmtType)
{
HGPngLoadInfo pngInfo;
HGResult ret = HGImgFmt_LoadPngImage(fileName, &pngInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = pngInfo.width;
info->height = pngInfo.height;
info->bpp = pngInfo.pixelDepth;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_PNGPHYSUNIT_METER == pngInfo.physUnitType)
{
info->xDpi = (uint32_t)((double)pngInfo.xPixelsPerUnit / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)pngInfo.yPixelsPerUnit / 39.3700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_TIFF == fmtType)
{
HGTiffReader tiffReader = NULL;
HGResult ret = HGImgFmt_OpenTiffReader(fileName, &tiffReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
UPTiffLoadInfo tiffInfo;
ret = HGImgFmt_LoadImageFromTiffReader(tiffReader, 0, &tiffInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK == ret)
{
if (NULL != info)
{
info->width = tiffInfo.width;
info->height = tiffInfo.height;
info->bpp = tiffInfo.bitsPerSample * tiffInfo.samplesPerPixel;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_TIFFRESUNIT_INCH == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)(tiffInfo.xResolution + 0.5f);
info->yDpi = (uint32_t)(tiffInfo.yResolution + 0.5f);
}
else if (HGIMGFMT_TIFFRESUNIT_CENTIMETER == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)((double)tiffInfo.xResolution / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)tiffInfo.yResolution / 0.393700787 + 0.5);
}
}
}
HGImgFmt_CloseTiffReader(tiffReader);
return ret;
}
else if (HGIMGFMT_TYPE_PDF == fmtType)
{
HGPdfReader pdfReader = NULL;
HGResult ret = HGImgFmt_OpenPdfReader(fileName, &pdfReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
ret = HGImgFmt_LoadImageFromPdfReader(pdfReader, 0, 1.0f, 1.0f, imgType, imgOrigin, image);
if (HGBASE_ERR_OK == ret)
{
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
}
HGImgFmt_ClosePdfReader(pdfReader);
return ret;
}
else if (HGIMGFMT_TYPE_OFD == fmtType)
{
HGOfdReader ofdReader = NULL;
HGResult ret = HGImgFmt_OpenOfdReader(fileName, &ofdReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
ret = HGImgFmt_LoadImageFromOfdReader(ofdReader, 0, 1.0f, 1.0f, imgType, imgOrigin, image);
if (HGBASE_ERR_OK == ret)
{
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
}
HGImgFmt_CloseOfdReader(ofdReader);
return ret;
}
assert(0 == fmtType);
HGJpegLoadInfo jpegInfo;
if (HGBASE_ERR_OK == HGImgFmt_LoadJpegImage(fileName, &jpegInfo, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = jpegInfo.width;
info->height = jpegInfo.height;
info->bpp = jpegInfo.numComponents * 8;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_JPEGDENUNIT_INCH == jpegInfo.densityUnit)
{
info->xDpi = jpegInfo.xDensity;
info->yDpi = jpegInfo.yDensity;
}
else if (HGIMGFMT_JPEGDENUNIT_CENTIMETER == jpegInfo.densityUnit)
{
info->xDpi = (uint32_t)((double)jpegInfo.xDensity / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)jpegInfo.yDensity / 0.393700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
HGBmpLoadInfo bmpInfo;
if (HGBASE_ERR_OK == HGImgFmt_LoadBmpImage(fileName, &bmpInfo, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = bmpInfo.width;
info->height = bmpInfo.height;
info->bpp = bmpInfo.bitCount;
info->xDpi = (uint32_t)((double)bmpInfo.xPelsPerMeter / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)bmpInfo.yPelsPerMeter / 39.3700787 + 0.5);
}
return HGBASE_ERR_OK;
}
HGPngLoadInfo pngInfo;
if (HGBASE_ERR_OK == HGImgFmt_LoadPngImage(fileName, &pngInfo, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = pngInfo.width;
info->height = pngInfo.height;
info->bpp = pngInfo.pixelDepth;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_PNGPHYSUNIT_METER == pngInfo.physUnitType)
{
info->xDpi = (uint32_t)((double)pngInfo.xPixelsPerUnit / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)pngInfo.yPixelsPerUnit / 39.3700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
HGTiffReader tiffReader = NULL;
HGImgFmt_OpenTiffReader(fileName, &tiffReader);
if (NULL != tiffReader)
{
UPTiffLoadInfo tiffInfo;
if (HGBASE_ERR_OK == HGImgFmt_LoadImageFromTiffReader(tiffReader, 0, &tiffInfo, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = tiffInfo.width;
info->height = tiffInfo.height;
info->bpp = tiffInfo.bitsPerSample * tiffInfo.samplesPerPixel;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_TIFFRESUNIT_INCH == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)(tiffInfo.xResolution + 0.5f);
info->yDpi = (uint32_t)(tiffInfo.yResolution + 0.5f);
}
else if (HGIMGFMT_TIFFRESUNIT_CENTIMETER == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)((double)tiffInfo.xResolution / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)tiffInfo.yResolution / 0.393700787 + 0.5);
}
}
HGImgFmt_CloseTiffReader(tiffReader);
return HGBASE_ERR_OK;
}
HGImgFmt_CloseTiffReader(tiffReader);
}
HGPdfReader pdfReader = NULL;
HGImgFmt_OpenPdfReader(fileName, &pdfReader);
if (NULL != pdfReader)
{
if (HGBASE_ERR_OK == HGImgFmt_LoadImageFromPdfReader(pdfReader, 0, 1.0f, 1.0f, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
HGImgFmt_ClosePdfReader(pdfReader);
return HGBASE_ERR_OK;
}
HGImgFmt_ClosePdfReader(pdfReader);
}
HGOfdReader ofdReader = NULL;
HGImgFmt_OpenOfdReader(fileName, &ofdReader);
if (NULL != ofdReader)
{
if (HGBASE_ERR_OK == HGImgFmt_LoadImageFromOfdReader(ofdReader, 0, 1.0f, 1.0f, imgType, imgOrigin, image))
{
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
HGImgFmt_CloseOfdReader(ofdReader);
return HGBASE_ERR_OK;
}
HGImgFmt_CloseOfdReader(ofdReader);
}
return HGBASE_ERR_FAIL;
}
HGResult HGAPI HGImgFmt_SaveImage(HGImage image, HGUInt fmtType, const HGImgFmtSaveInfo* info, const HGChar* fileName)
{
if (fmtType > HGIMGFMT_TYPE_OFD)
{
return HGBASE_ERR_INVALIDARG;
}
if (0 == fmtType)
{
HGImgFmt_GetImgFmtTypeFromFileName(fileName, &fmtType);
if (fmtType < HGIMGFMT_TYPE_JPEG || fmtType > HGIMGFMT_TYPE_OFD)
{
return HGBASE_ERR_INVALIDARG;
}
}
if (HGIMGFMT_TYPE_JPEG == fmtType)
{
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
return HGImgFmt_SaveJpegImage(image, pJpegInfo, fileName);
}
else if (HGIMGFMT_TYPE_BMP == fmtType)
{
HGBmpSaveInfo bmpInfo;
HGBmpSaveInfo* pBmpInfo = NULL;
if (NULL != info)
{
bmpInfo.xPelsPerMeter = (uint32_t)((double)info->xDpi * 39.3700787 + 0.5);
bmpInfo.yPelsPerMeter = (uint32_t)((double)info->yDpi * 39.3700787 + 0.5);
pBmpInfo = &bmpInfo;
}
return HGImgFmt_SaveBmpImage(image, pBmpInfo, fileName);
}
else if (HGIMGFMT_TYPE_PNG == fmtType)
{
HGPngSaveInfo pngInfo;
HGPngSaveInfo* pPngInfo = NULL;
if (NULL != info)
{
pngInfo.physUnitType = HGIMGFMT_PNGPHYSUNIT_METER;
pngInfo.xPixelsPerUnit = (uint32_t)((double)info->xDpi * 39.3700787 + 0.5);
pngInfo.yPixelsPerUnit = (uint32_t)((double)info->yDpi * 39.3700787 + 0.5);
pPngInfo = &pngInfo;
}
return HGImgFmt_SavePngImage(image, pPngInfo, fileName);
}
else if (HGIMGFMT_TYPE_TIFF == fmtType)
{
HGTiffWriter tiffWriter = NULL;
HGResult ret = HGImgFmt_OpenTiffWriter(fileName, &tiffWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
UPTiffSaveInfo tiffInfo;
UPTiffSaveInfo* pTiffInfo = NULL;
if (NULL != info)
{
tiffInfo.resolutionUnit = HGIMGFMT_TIFFRESUNIT_INCH;
tiffInfo.xResolution = (float)info->xDpi;
tiffInfo.yResolution = (float)info->yDpi;
pTiffInfo = &tiffInfo;
}
ret = HGImgFmt_SaveImageToTiffWriter(tiffWriter, image, pTiffInfo);
HGImgFmt_CloseTiffWriter(tiffWriter);
return ret;
}
else if (HGIMGFMT_TYPE_PDF == fmtType)
{
HGPdfImageWriter pdfImgWriter = NULL;
HGResult ret = HGImgFmt_OpenPdfImageWriter(fileName, &pdfImgWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
ret = HGImgFmt_SaveJpegImageToPdfImageWriter(pdfImgWriter, image, pJpegInfo);
HGImgFmt_ClosePdfImageWriter(pdfImgWriter);
return ret;
}
assert(HGIMGFMT_TYPE_OFD == fmtType);
HGOfdImageWriter ofdImgWriter = NULL;
HGResult ret = HGImgFmt_OpenOfdImageWriter(fileName, &ofdImgWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
ret = HGImgFmt_SaveJpegImageToOfdImageWriter(ofdImgWriter, image, pJpegInfo);
HGImgFmt_CloseOfdImageWriter(ofdImgWriter);
return ret;
}
HGResult HGAPI HGImgFmt_OpenImageReader(const HGChar* fileName, HGUInt fmtType, HGImgFmtReader* reader)
{
if (NULL == fileName || fmtType > HGIMGFMT_TYPE_OFD || NULL == reader)
{
return HGBASE_ERR_INVALIDARG;
}
if (HGIMGFMT_TYPE_JPEG == fmtType || HGIMGFMT_TYPE_BMP == fmtType
|| HGIMGFMT_TYPE_PNG == fmtType)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = fmtType;
imgFmtReaderImpl->handle = NULL;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_TIFF == fmtType)
{
HGTiffReader tiffReader = NULL;
HGResult ret = HGImgFmt_OpenTiffReader(fileName, &tiffReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = fmtType;
imgFmtReaderImpl->handle = tiffReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_PDF == fmtType)
{
HGPdfReader pdfReader = NULL;
HGResult ret = HGImgFmt_OpenPdfReader(fileName, &pdfReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = fmtType;
imgFmtReaderImpl->handle = pdfReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_OFD == fmtType)
{
HGOfdReader ofdReader = NULL;
HGResult ret = HGImgFmt_OpenOfdReader(fileName, &ofdReader);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = fmtType;
imgFmtReaderImpl->handle = ofdReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
assert(0 == fmtType);
HGBool isJpeg = HGFALSE;
HGImgFmt_CheckJpegFile(fileName, &isJpeg);
if (isJpeg)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_JPEG;
imgFmtReaderImpl->handle = NULL;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGBool isBmp = HGFALSE;
HGImgFmt_CheckBmpFile(fileName, &isBmp);
if (isBmp)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_BMP;
imgFmtReaderImpl->handle = NULL;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGBool isPng = HGFALSE;
HGImgFmt_CheckPngFile(fileName, &isPng);
if (isPng)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_PNG;
imgFmtReaderImpl->handle = NULL;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGTiffReader tiffReader = NULL;
HGResult ret = HGImgFmt_OpenTiffReader(fileName, &tiffReader);
if (HGBASE_ERR_OK == ret)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_TIFF;
imgFmtReaderImpl->handle = tiffReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGPdfReader pdfReader = NULL;
ret = HGImgFmt_OpenPdfReader(fileName, &pdfReader);
if (HGBASE_ERR_OK == ret)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_PDF;
imgFmtReaderImpl->handle = pdfReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGOfdReader ofdReader = NULL;
ret = HGImgFmt_OpenOfdReader(fileName, &ofdReader);
if (HGBASE_ERR_OK == ret)
{
HGImgFmtReaderImpl* imgFmtReaderImpl = new HGImgFmtReaderImpl;
imgFmtReaderImpl->fileName = fileName;
imgFmtReaderImpl->fmtType = HGIMGFMT_TYPE_OFD;
imgFmtReaderImpl->handle = ofdReader;
*reader = (HGImgFmtReader)imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
return HGBASE_ERR_FAIL;
}
HGResult HGAPI HGImgFmt_CloseImageReader(HGImgFmtReader reader)
{
if (NULL == reader)
{
return HGBASE_ERR_INVALIDARG;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = (HGImgFmtReaderImpl*)reader;
if (HGIMGFMT_TYPE_TIFF == imgFmtReaderImpl->fmtType)
HGImgFmt_CloseTiffReader((HGTiffReader)imgFmtReaderImpl->handle);
else if (HGIMGFMT_TYPE_PDF == imgFmtReaderImpl->fmtType)
HGImgFmt_ClosePdfReader((HGPdfReader)imgFmtReaderImpl->handle);
else if (HGIMGFMT_TYPE_OFD == imgFmtReaderImpl->fmtType)
HGImgFmt_CloseOfdReader((HGOfdReader)imgFmtReaderImpl->handle);
delete imgFmtReaderImpl;
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_GetImagePageCount(HGImgFmtReader reader, HGUInt* count)
{
if (NULL == reader || NULL == count)
{
return HGBASE_ERR_INVALIDARG;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = (HGImgFmtReaderImpl*)reader;
if (HGIMGFMT_TYPE_TIFF == imgFmtReaderImpl->fmtType)
return HGImgFmt_GetTiffPageCount((HGTiffReader)imgFmtReaderImpl->handle, count);
else if (HGIMGFMT_TYPE_PDF == imgFmtReaderImpl->fmtType)
return HGImgFmt_GetPdfPageCount((HGPdfReader)imgFmtReaderImpl->handle, count);
else if (HGIMGFMT_TYPE_OFD == imgFmtReaderImpl->fmtType)
return HGImgFmt_GetOfdPageCount((HGOfdReader)imgFmtReaderImpl->handle, count);
*count = 1;
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_LoadImageFromReader(HGImgFmtReader reader, HGUInt index, HGImgFmtLoadInfo* info,
HGUInt imgType, HGUInt imgOrigin, HGImage* image)
{
if (NULL == reader)
{
return HGBASE_ERR_INVALIDARG;
}
HGImgFmtReaderImpl* imgFmtReaderImpl = (HGImgFmtReaderImpl*)reader;
if (HGIMGFMT_TYPE_JPEG == imgFmtReaderImpl->fmtType)
{
if (0 != index)
{
return HGBASE_ERR_INVALIDARG;
}
HGJpegLoadInfo jpegInfo;
HGResult ret = HGImgFmt_LoadJpegImage(imgFmtReaderImpl->fileName.c_str(), &jpegInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = jpegInfo.width;
info->height = jpegInfo.height;
info->bpp = jpegInfo.numComponents * 8;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_JPEGDENUNIT_INCH == jpegInfo.densityUnit)
{
info->xDpi = jpegInfo.xDensity;
info->yDpi = jpegInfo.yDensity;
}
else if (HGIMGFMT_JPEGDENUNIT_CENTIMETER == jpegInfo.densityUnit)
{
info->xDpi = (uint32_t)((double)jpegInfo.xDensity / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)jpegInfo.yDensity / 0.393700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_BMP == imgFmtReaderImpl->fmtType)
{
if (0 != index)
{
return HGBASE_ERR_INVALIDARG;
}
HGBmpLoadInfo bmpInfo;
HGResult ret = HGImgFmt_LoadBmpImage(imgFmtReaderImpl->fileName.c_str(), &bmpInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = bmpInfo.width;
info->height = bmpInfo.height;
info->bpp = bmpInfo.bitCount;
info->xDpi = (uint32_t)((double)bmpInfo.xPelsPerMeter / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)bmpInfo.yPelsPerMeter / 39.3700787 + 0.5);
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_PNG == imgFmtReaderImpl->fmtType)
{
if (0 != index)
{
return HGBASE_ERR_INVALIDARG;
}
HGPngLoadInfo pngInfo;
HGResult ret = HGImgFmt_LoadPngImage(imgFmtReaderImpl->fileName.c_str(), &pngInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = pngInfo.width;
info->height = pngInfo.height;
info->bpp = pngInfo.pixelDepth;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_PNGPHYSUNIT_METER == pngInfo.physUnitType)
{
info->xDpi = (uint32_t)((double)pngInfo.xPixelsPerUnit / 39.3700787 + 0.5);
info->yDpi = (uint32_t)((double)pngInfo.yPixelsPerUnit / 39.3700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_TIFF == imgFmtReaderImpl->fmtType)
{
UPTiffLoadInfo tiffInfo;
HGResult ret = HGImgFmt_LoadImageFromTiffReader((HGTiffReader)imgFmtReaderImpl->handle, index, &tiffInfo, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = tiffInfo.width;
info->height = tiffInfo.height;
info->bpp = tiffInfo.bitsPerSample * tiffInfo.samplesPerPixel;
info->xDpi = 0;
info->yDpi = 0;
if (HGIMGFMT_TIFFRESUNIT_INCH == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)(tiffInfo.xResolution + 0.5f);
info->yDpi = (uint32_t)(tiffInfo.yResolution + 0.5f);
}
else if (HGIMGFMT_TIFFRESUNIT_CENTIMETER == tiffInfo.resolutionUnit)
{
info->xDpi = (uint32_t)((double)tiffInfo.xResolution / 0.393700787 + 0.5);
info->yDpi = (uint32_t)((double)tiffInfo.yResolution / 0.393700787 + 0.5);
}
}
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_PDF == imgFmtReaderImpl->fmtType)
{
HGResult ret = HGImgFmt_LoadImageFromPdfReader((HGPdfReader)imgFmtReaderImpl->handle, index, 1.0f, 1.0f, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
return HGBASE_ERR_OK;
}
assert(HGIMGFMT_TYPE_OFD == imgFmtReaderImpl->fmtType);
HGResult ret = HGImgFmt_LoadImageFromOfdReader((HGOfdReader)imgFmtReaderImpl->handle, index, 1.0f, 1.0f, imgType, imgOrigin, image);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
if (NULL != info)
{
info->width = 0;
info->height = 0;
info->bpp = 0;
info->xDpi = 0;
info->yDpi = 0;
}
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_OpenImageWriter(const HGChar* fileName, HGUInt fmtType, HGImgFmtWriter* writer)
{
if (fmtType > HGIMGFMT_TYPE_OFD || NULL == writer)
{
return HGBASE_ERR_INVALIDARG;
}
if (0 == fmtType)
{
HGImgFmt_GetImgFmtTypeFromFileName(fileName, &fmtType);
if (fmtType < HGIMGFMT_TYPE_JPEG || fmtType > HGIMGFMT_TYPE_OFD)
{
return HGBASE_ERR_INVALIDARG;
}
}
if (HGIMGFMT_TYPE_JPEG == fmtType || HGIMGFMT_TYPE_BMP == fmtType
|| HGIMGFMT_TYPE_PNG == fmtType)
{
HGImgFmtWriterImpl* imgFmtWriterImpl = new HGImgFmtWriterImpl;
imgFmtWriterImpl->fileName = fileName;
imgFmtWriterImpl->fmtType = fmtType;
imgFmtWriterImpl->handle = NULL;
imgFmtWriterImpl->write = HGFALSE;
*writer = (HGImgFmtWriter)imgFmtWriterImpl;
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_TIFF == fmtType)
{
HGTiffWriter tiffWriter = NULL;
HGResult ret = HGImgFmt_OpenTiffWriter(fileName, &tiffWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtWriterImpl* imgFmtWriterImpl = new HGImgFmtWriterImpl;
imgFmtWriterImpl->fileName = fileName;
imgFmtWriterImpl->fmtType = fmtType;
imgFmtWriterImpl->handle = tiffWriter;
imgFmtWriterImpl->write = HGFALSE;
*writer = (HGImgFmtWriter)imgFmtWriterImpl;
return HGBASE_ERR_OK;
}
else if (HGIMGFMT_TYPE_PDF == fmtType)
{
HGPdfImageWriter pdfWriter = NULL;
HGResult ret = HGImgFmt_OpenPdfImageWriter(fileName, &pdfWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtWriterImpl* imgFmtWriterImpl = new HGImgFmtWriterImpl;
imgFmtWriterImpl->fileName = fileName;
imgFmtWriterImpl->fmtType = fmtType;
imgFmtWriterImpl->handle = pdfWriter;
imgFmtWriterImpl->write = HGFALSE;
*writer = (HGImgFmtWriter)imgFmtWriterImpl;
return HGBASE_ERR_OK;
}
assert(HGIMGFMT_TYPE_OFD == fmtType);
HGOfdImageWriter ofdWriter = NULL;
HGResult ret = HGImgFmt_OpenOfdImageWriter(fileName, &ofdWriter);
if (HGBASE_ERR_OK != ret)
{
return ret;
}
HGImgFmtWriterImpl* imgFmtWriterImpl = new HGImgFmtWriterImpl;
imgFmtWriterImpl->fileName = fileName;
imgFmtWriterImpl->fmtType = fmtType;
imgFmtWriterImpl->handle = ofdWriter;
imgFmtWriterImpl->write = HGFALSE;
*writer = (HGImgFmtWriter)imgFmtWriterImpl;
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_CloseImageWriter(HGImgFmtWriter writer)
{
if (NULL == writer)
{
return HGBASE_ERR_INVALIDARG;
}
HGImgFmtWriterImpl* imgFmtWriterImpl = (HGImgFmtWriterImpl*)writer;
if (HGIMGFMT_TYPE_TIFF == imgFmtWriterImpl->fmtType)
HGImgFmt_CloseTiffWriter((HGTiffWriter)imgFmtWriterImpl->handle);
else if (HGIMGFMT_TYPE_PDF == imgFmtWriterImpl->fmtType)
HGImgFmt_ClosePdfImageWriter((HGPdfImageWriter)imgFmtWriterImpl->handle);
else if (HGIMGFMT_TYPE_OFD == imgFmtWriterImpl->fmtType)
HGImgFmt_CloseOfdImageWriter((HGOfdImageWriter)imgFmtWriterImpl->handle);
delete imgFmtWriterImpl;
return HGBASE_ERR_OK;
}
HGResult HGAPI HGImgFmt_SaveImageToWriter(HGImgFmtWriter writer, HGImage image, const HGImgFmtSaveInfo* info)
{
if (NULL == writer)
{
return HGBASE_ERR_INVALIDARG;
}
HGImgFmtWriterImpl* imgFmtWriterImpl = (HGImgFmtWriterImpl*)writer;
if (HGIMGFMT_TYPE_JPEG == imgFmtWriterImpl->fmtType)
{
if (imgFmtWriterImpl->write)
{
return HGBASE_ERR_FAIL;
}
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
HGResult ret = HGImgFmt_SaveJpegImage(image, pJpegInfo, imgFmtWriterImpl->fileName.c_str());
if (HGBASE_ERR_OK == ret)
{
imgFmtWriterImpl->write = HGTRUE;
}
return ret;
}
else if (HGIMGFMT_TYPE_BMP == imgFmtWriterImpl->fmtType)
{
if (imgFmtWriterImpl->write)
{
return HGBASE_ERR_FAIL;
}
HGBmpSaveInfo bmpInfo;
HGBmpSaveInfo* pBmpInfo = NULL;
if (NULL != info)
{
bmpInfo.xPelsPerMeter = (uint32_t)((double)info->xDpi * 39.3700787 + 0.5);
bmpInfo.yPelsPerMeter = (uint32_t)((double)info->yDpi * 39.3700787 + 0.5);
pBmpInfo = &bmpInfo;
}
HGResult ret = HGImgFmt_SaveBmpImage(image, pBmpInfo, imgFmtWriterImpl->fileName.c_str());
if (HGBASE_ERR_OK == ret)
{
imgFmtWriterImpl->write = HGTRUE;
}
return ret;
}
else if (HGIMGFMT_TYPE_PNG == imgFmtWriterImpl->fmtType)
{
if (imgFmtWriterImpl->write)
{
return HGBASE_ERR_FAIL;
}
HGPngSaveInfo pngInfo;
HGPngSaveInfo* pPngInfo = NULL;
if (NULL != info)
{
pngInfo.physUnitType = HGIMGFMT_PNGPHYSUNIT_METER;
pngInfo.xPixelsPerUnit = (uint32_t)((double)info->xDpi * 39.3700787 + 0.5);
pngInfo.yPixelsPerUnit = (uint32_t)((double)info->yDpi * 39.3700787 + 0.5);
pPngInfo = &pngInfo;
}
HGResult ret = HGImgFmt_SavePngImage(image, pPngInfo, imgFmtWriterImpl->fileName.c_str());
if (HGBASE_ERR_OK == ret)
{
imgFmtWriterImpl->write = HGTRUE;
}
return ret;
}
else if (HGIMGFMT_TYPE_TIFF == imgFmtWriterImpl->fmtType)
{
UPTiffSaveInfo tiffInfo;
UPTiffSaveInfo* pTiffInfo = NULL;
if (NULL != info)
{
tiffInfo.resolutionUnit = HGIMGFMT_TIFFRESUNIT_INCH;
tiffInfo.xResolution = (float)info->xDpi;
tiffInfo.yResolution = (float)info->yDpi;
pTiffInfo = &tiffInfo;
}
return HGImgFmt_SaveImageToTiffWriter((HGTiffWriter)imgFmtWriterImpl->handle, image, pTiffInfo);
}
else if (HGIMGFMT_TYPE_PDF == imgFmtWriterImpl->fmtType)
{
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
return HGImgFmt_SaveJpegImageToPdfImageWriter((HGPdfImageWriter)imgFmtWriterImpl->handle, image, pJpegInfo);
}
assert(HGIMGFMT_TYPE_OFD == imgFmtWriterImpl->fmtType);
HGJpegSaveInfo jpegInfo;
HGJpegSaveInfo* pJpegInfo = NULL;
if (NULL != info)
{
jpegInfo.densityUnit = HGIMGFMT_JPEGDENUNIT_INCH;
jpegInfo.xDensity = info->xDpi;
jpegInfo.yDensity = info->yDpi;
pJpegInfo = &jpegInfo;
}
return HGImgFmt_SaveJpegImageToOfdImageWriter((HGOfdImageWriter)imgFmtWriterImpl->handle, image, pJpegInfo);
}