static
int DoTransform(cmsHTRANSFORM hXForm, int OutputColorSpace)
{
JSAMPROW ScanLineIn;
JSAMPROW ScanLineOut;
//Preserve resolution values from the original
// (Thanks to Robert Bergs for finding out this bug)
Compressor.density_unit = Decompressor.density_unit;
Compressor.X_density = Decompressor.X_density;
Compressor.Y_density = Decompressor.Y_density;
// Compressor.write_JFIF_header = 1;
jpeg_start_decompress(&Decompressor);
jpeg_start_compress(&Compressor, TRUE);
if (OutputColorSpace == PT_Lab)
SetITUFax(&Compressor);
// Embed the profile if needed
if (EmbedProfile && cOutProf)
DoEmbedProfile(cOutProf);
ScanLineIn = (JSAMPROW) malloc(Decompressor.output_width * Decompressor.num_components);
ScanLineOut = (JSAMPROW) malloc(Compressor.image_width * Compressor.num_components);
while (Decompressor.output_scanline <
Decompressor.output_height) {
jpeg_read_scanlines(&Decompressor, &ScanLineIn, 1);
cmsDoTransform(hXForm, ScanLineIn, ScanLineOut, Decompressor.output_width);
jpeg_write_scanlines(&Compressor, &ScanLineOut, 1);
}
free(ScanLineIn);
free(ScanLineOut);
jpeg_finish_decompress(&Decompressor);
jpeg_finish_compress(&Compressor);
return TRUE;
}
static
int TransformImage(TIFF* in, TIFF* out, const char *cDefInpProf, const char *cOutProf)
{
cmsHPROFILE hIn, hOut, hProof, hInkLimit = NULL;
cmsHTRANSFORM xform;
DWORD wInput, wOutput;
int OutputColorSpace;
int bps = (Width16 ? 2 : 1);
DWORD dwFlags = 0;
int nPlanes;
// Observer adaptation state (only meaningful on absolute colorimetric intent)
cmsSetAdaptationState(ObserverAdaptationState);
if (EmbedProfile && cOutProf)
DoEmbedProfile(out, cOutProf);
if (BlackWhiteCompensation)
dwFlags |= cmsFLAGS_WHITEBLACKCOMPENSATION;
if (PreserveBlack) {
dwFlags |= cmsFLAGS_PRESERVEBLACK;
if (PrecalcMode == 0) PrecalcMode = 1;
}
switch (PrecalcMode) {
case 0: dwFlags |= cmsFLAGS_NOTPRECALC; break;
case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
case 3: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
case 1: break;
default: FatalError("Unknown precalculation mode '%d'", PrecalcMode);
}
if (GamutCheck)
dwFlags |= cmsFLAGS_GAMUTCHECK;
hProof = NULL;
hOut = NULL;
if (lIsDeviceLink) {
hIn = cmsOpenProfileFromFile(cDefInpProf, "r");
}
else {
hIn = GetTIFFProfile(in);
if (hIn == NULL)
hIn = OpenStockProfile(cDefInpProf);
hOut = OpenStockProfile(cOutProf);
if (cProofing != NULL) {
hProof = OpenStockProfile(cProofing);
dwFlags |= cmsFLAGS_SOFTPROOFING;
}
}
// Take input color space
wInput = GetInputPixelType(in);
// Assure both, input profile and input TIFF are on same colorspace
if (_cmsLCMScolorSpace(cmsGetColorSpace(hIn)) != (int) T_COLORSPACE(wInput))
FatalError("Input profile is not operating in proper color space");
if (!lIsDeviceLink)
OutputColorSpace = _cmsLCMScolorSpace(cmsGetColorSpace(hOut));
else
OutputColorSpace = _cmsLCMScolorSpace(cmsGetPCS(hIn));
wOutput = ComputeOutputFormatDescriptor(wInput, OutputColorSpace, bps);
WriteOutputTags(out, OutputColorSpace, bps);
CopyOtherTags(in, out);
// Ink limit
if (InkLimit != 400.0 &&
(OutputColorSpace == PT_CMYK || OutputColorSpace == PT_CMY)) {
cmsHPROFILE hProfiles[10];
int nProfiles = 0;
hInkLimit = cmsCreateInkLimitingDeviceLink(cmsGetColorSpace(hOut), InkLimit);
hProfiles[nProfiles++] = hIn;
if (hProof) {
hProfiles[nProfiles++] = hProof;
hProfiles[nProfiles++] = hProof;
}
hProfiles[nProfiles++] = hOut;
hProfiles[nProfiles++] = hInkLimit;
xform = cmsCreateMultiprofileTransform(hProfiles, nProfiles,
wInput, wOutput, Intent, dwFlags);
}
else {
xform = cmsCreateProofingTransform(hIn, wInput,
hOut, wOutput,
hProof, Intent,
ProofingIntent,
dwFlags);
}
// Planar stuff
if (T_PLANAR(wInput))
nPlanes = T_CHANNELS(wInput) + T_EXTRA(wInput);
else
nPlanes = 1;
// TIFF Lab of 8 bits need special handling
if (wInput == TYPE_Lab_8 &&
!InputLabUsingICC &&
cInpProf != NULL &&
stricmp(cInpProf, "*Lab") == 0) {
cmsSetUserFormatters(xform, TYPE_Lab_8, UnrollTIFFLab8, TYPE_Lab_8, NULL);
}
if (wOutput == TYPE_Lab_8 &&
cOutProf != NULL &&
stricmp(cOutProf, "*Lab") == 0) {
cmsSetUserFormatters(xform, TYPE_Lab_8, NULL, TYPE_Lab_8, PackTIFFLab8);
}
// Handle tile by tile or strip by strip
if (TIFFIsTiled(in)) {
TileBasedXform(xform, in, out, nPlanes);
}
else {
StripBasedXform(xform, in, out, nPlanes);
}
cmsDeleteTransform(xform);
cmsCloseProfile(hIn);
cmsCloseProfile(hOut);
if (hInkLimit)
cmsCloseProfile(hInkLimit);
if (hProof)
cmsCloseProfile(hProof);
TIFFWriteDirectory(out);
return 1;
}
