Пример #1
0
// This function creates a profile based on White point and transfer function.
cmsHPROFILE CMSEXPORT cmsCreateGrayProfileTHR(cmsContext ContextID,
                                           const cmsCIExyY* WhitePoint,
                                           const cmsToneCurve* TransferFunction)
{
    cmsHPROFILE hICC;
    cmsCIEXYZ tmp;

    hICC = cmsCreateProfilePlaceholder(ContextID);
    if (!hICC)                          // can't allocate
        return NULL;

    cmsSetProfileVersion(hICC, 4.3);

    cmsSetDeviceClass(hICC,      cmsSigDisplayClass);
    cmsSetColorSpace(hICC,       cmsSigGrayData);
    cmsSetPCS(hICC,              cmsSigXYZData);
    cmsSetHeaderRenderingIntent(hICC,  INTENT_PERCEPTUAL);


    // Implement profile using following tags:
    //
    //  1 cmsSigProfileDescriptionTag
    //  2 cmsSigMediaWhitePointTag
    //  3 cmsSigGrayTRCTag

    // This conforms a standard Gray DisplayProfile

    // Fill-in the tags

    if (!SetTextTags(hICC, L"gray built-in")) goto Error;


    if (WhitePoint) {

        cmsxyY2XYZ(&tmp, WhitePoint);
        if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) &tmp)) goto Error;
    }

    if (TransferFunction) {

        if (!cmsWriteTag(hICC, cmsSigGrayTRCTag, (void*) TransferFunction)) goto Error;
    }

    return hICC;

Error:
    if (hICC)
        cmsCloseProfile(hICC);
    return NULL;
}
Пример #2
0
// This function creates a named color profile dumping all the contents of transform to a single profile
// In this way, LittleCMS may be used to "group" several named color databases into a single profile.
// It has, however, several minor limitations. PCS is always Lab, which is not very critic since this
// is the normal PCS for named color profiles.
static
cmsHPROFILE CreateNamedColorDevicelink(cmsHTRANSFORM xform)
{
    _cmsTRANSFORM* v = (_cmsTRANSFORM*) xform;
    cmsHPROFILE hICC = NULL;
    int i, nColors;
    cmsNAMEDCOLORLIST *nc2 = NULL, *Original = NULL;

    // Create an empty placeholder
    hICC = cmsCreateProfilePlaceholder(v->ContextID);
    if (hICC == NULL) return NULL;

    // Critical information
    cmsSetDeviceClass(hICC, cmsSigNamedColorClass);
    cmsSetColorSpace(hICC, v ->ExitColorSpace);
    cmsSetPCS(hICC, cmsSigLabData);

    // Tag profile with information
    if (!SetTextTags(hICC, L"Named color devicelink")) goto Error;

    Original = cmsGetNamedColorList(xform);
    if (Original == NULL) goto Error;

    nColors = cmsNamedColorCount(Original);
    nc2     = cmsDupNamedColorList(Original);
    if (nc2 == NULL) goto Error;

    // Colorant count now depends on the output space
    nc2 ->ColorantCount = cmsPipelineOutputChannels(v ->Lut);

    // Make sure we have proper formatters
    cmsChangeBuffersFormat(xform, TYPE_NAMED_COLOR_INDEX,
        FLOAT_SH(0) | COLORSPACE_SH(_cmsLCMScolorSpace(v ->ExitColorSpace))
        | BYTES_SH(2) | CHANNELS_SH(cmsChannelsOf(v ->ExitColorSpace)));

    // Apply the transfor to colorants.
    for (i=0; i < nColors; i++) {
        cmsDoTransform(xform, &i, nc2 ->List[i].DeviceColorant, 1);
    }

    if (!cmsWriteTag(hICC, cmsSigNamedColor2Tag, (void*) nc2)) goto Error;
    cmsFreeNamedColorList(nc2);

    return hICC;

Error:
    if (hICC != NULL) cmsCloseProfile(hICC);
    return NULL;
}
Пример #3
0
// Creates a fake NULL profile. This profile return 1 channel as always 0.
// Is useful only for gamut checking tricks
cmsHPROFILE CMSEXPORT cmsCreateNULLProfileTHR(cmsContext ContextID)
{
    cmsHPROFILE hProfile;
    cmsPipeline* LUT = NULL;
    cmsStage* PostLin;
    cmsToneCurve* EmptyTab;
    cmsUInt16Number Zero[2] = { 0, 0 };

    hProfile = cmsCreateProfilePlaceholder(ContextID);
    if (!hProfile)                          // can't allocate
        return NULL;

    cmsSetProfileVersion(hProfile, 4.3);

    if (!SetTextTags(hProfile, L"NULL profile built-in")) goto Error;



    cmsSetDeviceClass(hProfile, cmsSigOutputClass);
    cmsSetColorSpace(hProfile,  cmsSigGrayData);
    cmsSetPCS(hProfile,         cmsSigLabData);

    // An empty LUTs is all we need
    LUT = cmsPipelineAlloc(ContextID, 1, 1);
    if (LUT == NULL) goto Error;

    EmptyTab = cmsBuildTabulatedToneCurve16(ContextID, 2, Zero);
    PostLin = cmsStageAllocToneCurves(ContextID, 1, &EmptyTab);
    cmsFreeToneCurve(EmptyTab);

    if (!cmsPipelineInsertStage(LUT, cmsAT_END, PostLin))
        goto Error;

    if (!cmsWriteTag(hProfile, cmsSigBToA0Tag, (void*) LUT)) goto Error;
    if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error;

    cmsPipelineFree(LUT);
    return hProfile;

Error:

    if (LUT != NULL)
        cmsPipelineFree(LUT);

    if (hProfile != NULL)
        cmsCloseProfile(hProfile);

    return NULL;
}
Пример #4
0
// Creates a fake XYZ identity
cmsHPROFILE CMSEXPORT cmsCreateXYZProfileTHR(cmsContext ContextID)
{
    cmsHPROFILE hProfile;
    cmsPipeline* LUT = NULL;

    hProfile = cmsCreateRGBProfileTHR(ContextID, cmsD50_xyY(), NULL, NULL);
    if (hProfile == NULL) return NULL;

    cmsSetProfileVersion(hProfile, 4.3);

    cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
    cmsSetColorSpace(hProfile,  cmsSigXYZData);
    cmsSetPCS(hProfile,         cmsSigXYZData);

    if (!SetTextTags(hProfile, L"XYZ identity built-in")) goto Error;

    // An identity LUT is all we need
    LUT = cmsPipelineAlloc(ContextID, 3, 3);
    if (LUT == NULL) goto Error;

    if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, 3)))
        goto Error;

    if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error;
    cmsPipelineFree(LUT);

    return hProfile;

Error:

    if (LUT != NULL)
        cmsPipelineFree(LUT);

    if (hProfile != NULL)
        cmsCloseProfile(hProfile);

    return NULL;
}
Пример #5
0
// Creates a fake Lab identity.
cmsHPROFILE CMSEXPORT cmsCreateLab2ProfileTHR(cmsContext ContextID, const cmsCIExyY* WhitePoint)
{
    cmsHPROFILE hProfile;
    cmsPipeline* LUT = NULL;

    hProfile = cmsCreateRGBProfileTHR(ContextID, WhitePoint == NULL ? cmsD50_xyY() : WhitePoint, NULL, NULL);
    if (hProfile == NULL) return NULL;

    cmsSetProfileVersion(hProfile, 2.1);

    cmsSetDeviceClass(hProfile, cmsSigAbstractClass);
    cmsSetColorSpace(hProfile,  cmsSigLabData);
    cmsSetPCS(hProfile,         cmsSigLabData);

    if (!SetTextTags(hProfile, L"Lab identity built-in")) return NULL;

    // An identity LUT is all we need
    LUT = cmsPipelineAlloc(ContextID, 3, 3);
    if (LUT == NULL) goto Error;

    if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCLut(ContextID, 3)))
        goto Error;

    if (!cmsWriteTag(hProfile, cmsSigAToB0Tag, LUT)) goto Error;
    cmsPipelineFree(LUT);

    return hProfile;

Error:

    if (LUT != NULL)
        cmsPipelineFree(LUT);

    if (hProfile != NULL)
        cmsCloseProfile(hProfile);

    return NULL;
}
Пример #6
0
cmsHPROFILE CMSEXPORT cmsCreateBCHSWabstractProfileTHR(cmsContext ContextID,
    int nLUTPoints,
    cmsFloat64Number Bright,
    cmsFloat64Number Contrast,
    cmsFloat64Number Hue,
    cmsFloat64Number Saturation,
    int TempSrc,
    int TempDest)
{
    cmsHPROFILE hICC;
    cmsPipeline* Pipeline;
    BCHSWADJUSTS bchsw;
    cmsCIExyY WhitePnt;
    cmsStage* CLUT;
    cmsUInt32Number Dimensions[MAX_INPUT_DIMENSIONS];
    int i;

    bchsw.Brightness = Bright;
    bchsw.Contrast   = Contrast;
    bchsw.Hue        = Hue;
    bchsw.Saturation = Saturation;

    cmsWhitePointFromTemp(&WhitePnt, TempSrc );
    cmsxyY2XYZ(&bchsw.WPsrc, &WhitePnt);

    cmsWhitePointFromTemp(&WhitePnt, TempDest);
    cmsxyY2XYZ(&bchsw.WPdest, &WhitePnt);

    hICC = cmsCreateProfilePlaceholder(ContextID);
    if (!hICC)                          // can't allocate
        return NULL;


    cmsSetDeviceClass(hICC,      cmsSigAbstractClass);
    cmsSetColorSpace(hICC,       cmsSigLabData);
    cmsSetPCS(hICC,              cmsSigLabData);

    cmsSetHeaderRenderingIntent(hICC,  INTENT_PERCEPTUAL);

    // Creates a Pipeline with 3D grid only
    Pipeline = cmsPipelineAlloc(ContextID, 3, 3);
    if (Pipeline == NULL) {
        cmsCloseProfile(hICC);
        return NULL;
    }

    for (i=0; i < MAX_INPUT_DIMENSIONS; i++) Dimensions[i] = nLUTPoints;
    CLUT = cmsStageAllocCLut16bitGranular(ContextID, Dimensions, 3, 3, NULL);
    if (CLUT == NULL) return NULL;


    if (!cmsStageSampleCLut16bit(CLUT, bchswSampler, (void*) &bchsw, 0)) {

        // Shouldn't reach here
        goto Error;
    }

    if (!cmsPipelineInsertStage(Pipeline, cmsAT_END, CLUT)) {
        goto Error;
    }

    // Create tags
    if (!SetTextTags(hICC, L"BCHS built-in")) return NULL;

    cmsWriteTag(hICC, cmsSigMediaWhitePointTag, (void*) cmsD50_XYZ());

    cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) Pipeline);

    // Pipeline is already on virtual profile
    cmsPipelineFree(Pipeline);

    // Ok, done
    return hICC;

Error:
    cmsPipelineFree(Pipeline);
    cmsCloseProfile(hICC);
    return NULL;
}
Пример #7
0
cmsHPROFILE CMSEXPORT cmsCreateInkLimitingDeviceLinkTHR(cmsContext ContextID,
                                                     cmsColorSpaceSignature ColorSpace,
                                                     cmsFloat64Number Limit)
{
    cmsHPROFILE hICC;
    cmsPipeline* LUT;
    cmsStage* CLUT;
    int nChannels;

    if (ColorSpace != cmsSigCmykData) {
        cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "InkLimiting: Only CMYK currently supported");
        return NULL;
    }

    if (Limit < 0.0 || Limit > 400) {

        cmsSignalError(ContextID, cmsERROR_RANGE, "InkLimiting: Limit should be between 0..400");
        if (Limit < 0) Limit = 0;
        if (Limit > 400) Limit = 400;

    }

    hICC = cmsCreateProfilePlaceholder(ContextID);
    if (!hICC)                          // can't allocate
        return NULL;

    cmsSetProfileVersion(hICC, 4.3);

    cmsSetDeviceClass(hICC,      cmsSigLinkClass);
    cmsSetColorSpace(hICC,       ColorSpace);
    cmsSetPCS(hICC,              ColorSpace);

    cmsSetHeaderRenderingIntent(hICC,  INTENT_PERCEPTUAL);


    // Creates a Pipeline with 3D grid only
    LUT = cmsPipelineAlloc(ContextID, 4, 4);
    if (LUT == NULL) goto Error;


    nChannels = cmsChannelsOf(ColorSpace);

    CLUT = cmsStageAllocCLut16bit(ContextID, 17, nChannels, nChannels, NULL);
    if (CLUT == NULL) goto Error;

    if (!cmsStageSampleCLut16bit(CLUT, InkLimitingSampler, (void*) &Limit, 0)) goto Error;

    if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, nChannels)) ||
        !cmsPipelineInsertStage(LUT, cmsAT_END, CLUT) ||
        !cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocIdentityCurves(ContextID, nChannels)))
        goto Error;

    // Create tags
    if (!SetTextTags(hICC, L"ink-limiting built-in")) goto Error;

    if (!cmsWriteTag(hICC, cmsSigAToB0Tag, (void*) LUT))  goto Error;
    if (!SetSeqDescTag(hICC, "ink-limiting built-in")) goto Error;

    // cmsPipeline is already on virtual profile
    cmsPipelineFree(LUT);

    // Ok, done
    return hICC;

Error:
    if (LUT != NULL)
        cmsPipelineFree(LUT);

    if (hICC != NULL)
        cmsCloseProfile(hICC);

    return NULL;
}
Пример #8
0
// Does convert a transform into a device link profile
cmsHPROFILE CMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, cmsFloat64Number Version, cmsUInt32Number dwFlags)
{
    cmsHPROFILE hProfile = NULL;
    cmsUInt32Number FrmIn, FrmOut, ChansIn, ChansOut;
    cmsUInt32Number ColorSpaceBitsIn, ColorSpaceBitsOut;
    _cmsTRANSFORM* xform = (_cmsTRANSFORM*) hTransform;
    cmsPipeline* LUT = NULL;
    cmsStage* mpe;
    cmsContext ContextID = cmsGetTransformContextID(hTransform);
    const cmsAllowedLUT* AllowedLUT;
    cmsTagSignature DestinationTag;
    cmsProfileClassSignature deviceClass; 

    _cmsAssert(hTransform != NULL);

    // Get the first mpe to check for named color
    mpe = cmsPipelineGetPtrToFirstStage(xform ->Lut);

    // Check if is a named color transform
    if (mpe != NULL) {

        if (cmsStageType(mpe) == cmsSigNamedColorElemType) {
            return CreateNamedColorDevicelink(hTransform);
        }
    }

    // First thing to do is to get a copy of the transformation
    LUT = cmsPipelineDup(xform ->Lut);
    if (LUT == NULL) return NULL;

    // Time to fix the Lab2/Lab4 issue.
    if ((xform ->EntryColorSpace == cmsSigLabData) && (Version < 4.0)) {

        if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocLabV2ToV4curves(ContextID)))
            goto Error;
    }

    // On the output side too
    if ((xform ->ExitColorSpace) == cmsSigLabData && (Version < 4.0)) {

        if (!cmsPipelineInsertStage(LUT, cmsAT_END, _cmsStageAllocLabV4ToV2(ContextID)))
            goto Error;
    }


    hProfile = cmsCreateProfilePlaceholder(ContextID);
    if (!hProfile) goto Error;                    // can't allocate

    cmsSetProfileVersion(hProfile, Version);

    FixColorSpaces(hProfile, xform -> EntryColorSpace, xform -> ExitColorSpace, dwFlags);

    // Optimize the LUT and precalculate a devicelink

    ChansIn  = cmsChannelsOf(xform -> EntryColorSpace);
    ChansOut = cmsChannelsOf(xform -> ExitColorSpace);

    ColorSpaceBitsIn  = _cmsLCMScolorSpace(xform -> EntryColorSpace);
    ColorSpaceBitsOut = _cmsLCMScolorSpace(xform -> ExitColorSpace);

    FrmIn  = COLORSPACE_SH(ColorSpaceBitsIn) | CHANNELS_SH(ChansIn)|BYTES_SH(2);
    FrmOut = COLORSPACE_SH(ColorSpaceBitsOut) | CHANNELS_SH(ChansOut)|BYTES_SH(2);

    deviceClass = cmsGetDeviceClass(hProfile);

     if (deviceClass == cmsSigOutputClass)
         DestinationTag = cmsSigBToA0Tag;
     else
         DestinationTag = cmsSigAToB0Tag;

    // Check if the profile/version can store the result
    if (dwFlags & cmsFLAGS_FORCE_CLUT)
        AllowedLUT = NULL;
    else
        AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);

    if (AllowedLUT == NULL) {

        // Try to optimize
        _cmsOptimizePipeline(ContextID, &LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags);
        AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);

    }

    // If no way, then force CLUT that for sure can be written
    if (AllowedLUT == NULL) {

        dwFlags |= cmsFLAGS_FORCE_CLUT;
        _cmsOptimizePipeline(ContextID, &LUT, xform ->RenderingIntent, &FrmIn, &FrmOut, &dwFlags);

        // Put identity curves if needed
        if (cmsPipelineGetPtrToFirstStage(LUT) ->Type != cmsSigCurveSetElemType)
             if (!cmsPipelineInsertStage(LUT, cmsAT_BEGIN, _cmsStageAllocIdentityCurves(ContextID, ChansIn)))
                 goto Error;

        if (cmsPipelineGetPtrToLastStage(LUT) ->Type != cmsSigCurveSetElemType)
             if (!cmsPipelineInsertStage(LUT, cmsAT_END,   _cmsStageAllocIdentityCurves(ContextID, ChansOut)))
                 goto Error;

        AllowedLUT = FindCombination(LUT, Version >= 4.0, DestinationTag);
    }

    // Somethings is wrong...
    if (AllowedLUT == NULL) {
        goto Error;
    }


    if (dwFlags & cmsFLAGS_8BITS_DEVICELINK)
                     cmsPipelineSetSaveAs8bitsFlag(LUT, TRUE);

    // Tag profile with information
    if (!SetTextTags(hProfile, L"devicelink")) goto Error;

    // Store result
    if (!cmsWriteTag(hProfile, DestinationTag, LUT)) goto Error;


    if (xform -> InputColorant != NULL) {
           if (!cmsWriteTag(hProfile, cmsSigColorantTableTag, xform->InputColorant)) goto Error;
    }

    if (xform -> OutputColorant != NULL) {
           if (!cmsWriteTag(hProfile, cmsSigColorantTableOutTag, xform->OutputColorant)) goto Error;
    }

    if ((deviceClass == cmsSigLinkClass) && (xform ->Sequence != NULL)) {
        if (!_cmsWriteProfileSequence(hProfile, xform ->Sequence)) goto Error;
    }

    // Set the white point
    if (deviceClass == cmsSigInputClass) {
        if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->EntryWhitePoint)) goto Error;
    }
    else {
         if (!cmsWriteTag(hProfile, cmsSigMediaWhitePointTag, &xform ->ExitWhitePoint)) goto Error;
    }

  
    // Per 7.2.15 in spec 4.3
    cmsSetHeaderRenderingIntent(hProfile, xform ->RenderingIntent);

    cmsPipelineFree(LUT);
    return hProfile;

Error:
    if (LUT != NULL) cmsPipelineFree(LUT);
    cmsCloseProfile(hProfile);
    return NULL;
}
Пример #9
0
// This function creates a profile based on White point, primaries and
// transfer functions.
cmsHPROFILE CMSEXPORT cmsCreateRGBProfileTHR(cmsContext ContextID,
                                          const cmsCIExyY* WhitePoint,
                                          const cmsCIExyYTRIPLE* Primaries,
                                          cmsToneCurve* const TransferFunction[3])
{
    cmsHPROFILE hICC;
    cmsMAT3 MColorants;
    cmsCIEXYZTRIPLE Colorants;
    cmsCIExyY MaxWhite;
    cmsMAT3 CHAD;
    cmsCIEXYZ WhitePointXYZ;

    hICC = cmsCreateProfilePlaceholder(ContextID);
    if (!hICC)                          // can't allocate
        return NULL;

    cmsSetProfileVersion(hICC, 4.3);

    cmsSetDeviceClass(hICC,      cmsSigDisplayClass);
    cmsSetColorSpace(hICC,       cmsSigRgbData);
    cmsSetPCS(hICC,              cmsSigXYZData);

    cmsSetHeaderRenderingIntent(hICC,  INTENT_PERCEPTUAL);


    // Implement profile using following tags:
    //
    //  1 cmsSigProfileDescriptionTag
    //  2 cmsSigMediaWhitePointTag
    //  3 cmsSigRedColorantTag
    //  4 cmsSigGreenColorantTag
    //  5 cmsSigBlueColorantTag
    //  6 cmsSigRedTRCTag
    //  7 cmsSigGreenTRCTag
    //  8 cmsSigBlueTRCTag
    //  9 Chromatic adaptation Tag
    // This conforms a standard RGB DisplayProfile as says ICC, and then I add (As per addendum II)
    // 10 cmsSigChromaticityTag


    if (!SetTextTags(hICC, L"RGB built-in")) goto Error;

    if (WhitePoint) {

        if (!cmsWriteTag(hICC, cmsSigMediaWhitePointTag, cmsD50_XYZ())) goto Error;

        cmsxyY2XYZ(&WhitePointXYZ, WhitePoint);
        _cmsAdaptationMatrix(&CHAD, NULL, &WhitePointXYZ, cmsD50_XYZ());

        // This is a V4 tag, but many CMM does read and understand it no matter which version
        if (!cmsWriteTag(hICC, cmsSigChromaticAdaptationTag, (void*) &CHAD)) goto Error;
    }

    if (WhitePoint && Primaries) {

        MaxWhite.x =  WhitePoint -> x;
        MaxWhite.y =  WhitePoint -> y;
        MaxWhite.Y =  1.0;

        if (!_cmsBuildRGB2XYZtransferMatrix(&MColorants, &MaxWhite, Primaries)) goto Error;

        Colorants.Red.X   = MColorants.v[0].n[0];
        Colorants.Red.Y   = MColorants.v[1].n[0];
        Colorants.Red.Z   = MColorants.v[2].n[0];

        Colorants.Green.X = MColorants.v[0].n[1];
        Colorants.Green.Y = MColorants.v[1].n[1];
        Colorants.Green.Z = MColorants.v[2].n[1];

        Colorants.Blue.X  = MColorants.v[0].n[2];
        Colorants.Blue.Y  = MColorants.v[1].n[2];
        Colorants.Blue.Z  = MColorants.v[2].n[2];

        if (!cmsWriteTag(hICC, cmsSigRedColorantTag,   (void*) &Colorants.Red)) goto Error;
        if (!cmsWriteTag(hICC, cmsSigBlueColorantTag,  (void*) &Colorants.Blue)) goto Error;
        if (!cmsWriteTag(hICC, cmsSigGreenColorantTag, (void*) &Colorants.Green)) goto Error;
    }


    if (TransferFunction) {

        // Tries to minimize space. Thanks to Richard Hughes for this nice idea         
        if (!cmsWriteTag(hICC, cmsSigRedTRCTag,   (void*) TransferFunction[0])) goto Error;

        if (TransferFunction[1] == TransferFunction[0]) {

            if (!cmsLinkTag (hICC, cmsSigGreenTRCTag, cmsSigRedTRCTag)) goto Error;

        } else {

            if (!cmsWriteTag(hICC, cmsSigGreenTRCTag, (void*) TransferFunction[1])) goto Error;
        }

        if (TransferFunction[2] == TransferFunction[0]) {

            if (!cmsLinkTag (hICC, cmsSigBlueTRCTag, cmsSigRedTRCTag)) goto Error;

        } else {

            if (!cmsWriteTag(hICC, cmsSigBlueTRCTag, (void*) TransferFunction[2])) goto Error;
        }
    }

    if (Primaries) {
        if (!cmsWriteTag(hICC, cmsSigChromaticityTag, (void*) Primaries)) goto Error;
    }


    return hICC;

Error:
    if (hICC)
        cmsCloseProfile(hICC);
    return NULL;
}
Пример #10
0
int main(int argc, char *argv[])
{
    int i, nargs, rc;
    cmsHPROFILE Profiles[257];
    cmsHPROFILE hProfile;
    cmsUInt32Number dwFlags;
    cmsHTRANSFORM hTransform = NULL;

    // Here we are
    fprintf(stderr, "little cms ICC device link generator - v2.2 [LittleCMS %2.2f]\n", LCMS_VERSION / 1000.0);
    fflush(stderr);

    // Initialize
    InitUtils("linkicc");
    rc = 0;
    
    // Get the options
    HandleSwitches(argc, argv);

    // How many profiles to link?
    nargs = (argc - xoptind);
    if (nargs < 1)
        return Help(0); 

    if (nargs > 255) {
        FatalError("Holy profile! what are you trying to do with so many profiles!?");
        goto Cleanup;
    }

    // Open all profiles
    memset(Profiles, 0, sizeof(Profiles));
    for (i=0; i < nargs; i++) {

        Profiles[i] = OpenStockProfile(0, argv[i + xoptind]);
        if (Profiles[i] == NULL) goto Cleanup;      

        if (Verbose >= 1) {
            PrintProfileInformation(Profiles[i]);
        }
    }

    // Ink limiting
    if (InkLimit != 400.0) {        
        cmsColorSpaceSignature EndingColorSpace = cmsGetColorSpace(Profiles[nargs-1]);
        Profiles[nargs++] = cmsCreateInkLimitingDeviceLink(EndingColorSpace, InkLimit);
    }

    // Set the flags
    dwFlags = cmsFLAGS_KEEP_SEQUENCE;
    switch (PrecalcMode) {

        case 0: dwFlags |= cmsFLAGS_LOWRESPRECALC; break;
        case 2: dwFlags |= cmsFLAGS_HIGHRESPRECALC; break;
        case 1: 
            if (NumOfGridPoints > 0)
                dwFlags |= cmsFLAGS_GRIDPOINTS(NumOfGridPoints);
            break;

        default: 
            {
                FatalError("Unknown precalculation mode '%d'", PrecalcMode);
                goto Cleanup;
            }
    }

    if (BlackPointCompensation)
        dwFlags |= cmsFLAGS_BLACKPOINTCOMPENSATION;

    if (TagResult)
        dwFlags |= cmsFLAGS_GUESSDEVICECLASS;

    if (KeepLinearization)
        dwFlags |= cmsFLAGS_CLUT_PRE_LINEARIZATION|cmsFLAGS_CLUT_POST_LINEARIZATION;

    if (lUse8bits) dwFlags |= cmsFLAGS_8BITS_DEVICELINK;

     cmsSetAdaptationState(ObserverAdaptationState);
     
    // Create the color transform. Specify 0 for the format is safe as the transform 
    // is intended to be used only for the devicelink.
    hTransform = cmsCreateMultiprofileTransform(Profiles, nargs, 0, 0, Intent, dwFlags|cmsFLAGS_NOOPTIMIZE);
    if (hTransform == NULL) {
        FatalError("Transform creation failed");
        goto Cleanup;
    }

    hProfile =  cmsTransform2DeviceLink(hTransform, Version, dwFlags);
    if (hProfile == NULL) {
        FatalError("Devicelink creation failed");
        goto Cleanup;
    }

    SetTextTags(hProfile);
    cmsSetHeaderRenderingIntent(hProfile, Intent);

    if (cmsSaveProfileToFile(hProfile, cOutProf)) {

        if (Verbose > 0) 
            fprintf(stderr, "Ok");
    }
    else 
        FatalError("Error saving file!");

    cmsCloseProfile(hProfile);


Cleanup:

    if (hTransform != NULL) cmsDeleteTransform(hTransform);
    for (i=0; i < nargs; i++) {

        if (Profiles[i] != NULL) cmsCloseProfile(Profiles[i]);
    }

    return rc;     
}