bool LcmsColorProfileContainer::init()
{
    if (d->profile) cmsCloseProfile(d->profile);

    d->profile = cmsOpenProfileFromMem((void*)d->data->rawData().constData(), d->data->rawData().size());

#ifndef NDEBUG
    if (d->data->rawData().size() == 4096) {
        warnPigment << "Profile has a size of 4096, which is suspicious and indicates a possible misuse of QIODevice::read(int), check your code.";
    }
#endif

    if (d->profile) {
        wchar_t buffer[_BUFFER_SIZE_];
        d->colorSpaceSignature = cmsGetColorSpace(d->profile);
        d->deviceClass = cmsGetDeviceClass(d->profile);
        cmsGetProfileInfo(d->profile, cmsInfoDescription, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
        d->productDescription = QString::fromWCharArray(buffer);
        d->valid = true;
        cmsGetProfileInfo(d->profile, cmsInfoModel, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
        d->name = QString::fromWCharArray(buffer);

        cmsGetProfileInfo(d->profile, cmsInfoManufacturer, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
        d->manufacturer = QString::fromWCharArray(buffer);

        // Check if the profile can convert (something->this)
        d->suitableForOutput = cmsIsMatrixShaper(d->profile)
                               || ( cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_INPUT) &&
                                    cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_OUTPUT) );
        return true;
    }
    return false;
}

int cmsDetectBlackPoint(LPcmsCIEXYZ BlackPoint, cmsHPROFILE hProfile, int Intent, DWORD dwFlags)
{    

    // v4 + perceptual & saturation intents does have its own black point

    if ((cmsGetProfileICCversion(hProfile) >= 0x4000000) &&
        (Intent == INTENT_PERCEPTUAL || Intent == INTENT_SATURATION)) {

       return GetV4PerceptualBlack(BlackPoint, hProfile, dwFlags);
    }


#ifdef HONOR_BLACK_POINT_TAG

    // v2, v4 rel/abs colorimetric
    if (cmsIsTag(hProfile, icSigMediaBlackPointTag) && 
                    Intent == INTENT_RELATIVE_COLORIMETRIC) {

        cmsCIEXYZ BlackXYZ, UntrustedBlackPoint, TrustedBlackPoint, MediaWhite;
        cmsCIELab Lab;

             // If black point is specified, then use it, 
        
             cmsTakeMediaBlackPoint(&BlackXYZ, hProfile);
             cmsTakeMediaWhitePoint(&MediaWhite, hProfile);

             // Black point is absolute XYZ, so adapt to D50 to get PCS value

             cmsAdaptToIlluminant(&UntrustedBlackPoint, &MediaWhite, cmsD50_XYZ(), &BlackXYZ);

             // Force a=b=0 to get rid of any chroma

             cmsXYZ2Lab(NULL, &Lab, &UntrustedBlackPoint);
             Lab.a = Lab.b = 0;
             if (Lab.L > 50) Lab.L = 50; // Clip to L* <= 50

             cmsLab2XYZ(NULL, &TrustedBlackPoint, &Lab);

             // Return BP as D50 relative or absolute XYZ (depends on flags)

             if (!(dwFlags & LCMS_BPFLAGS_D50_ADAPTED))
                    cmsAdaptToIlluminant(BlackPoint, cmsD50_XYZ(), &MediaWhite, &TrustedBlackPoint);
             else
                    *BlackPoint = TrustedBlackPoint;
    }

#endif
    
    // If output profile, discount ink-limiting

    if (Intent == INTENT_RELATIVE_COLORIMETRIC && 
            (cmsGetDeviceClass(hProfile) == icSigOutputClass) &&
            (cmsGetColorSpace(hProfile) == icSigCmykData))
                return BlackPointUsingPerceptualBlack(BlackPoint, hProfile, dwFlags);

    // Nope, compute BP using current intent.

    return BlackPointAsDarkerColorant(hProfile, Intent, BlackPoint, dwFlags);

}

// Get a media white point fixing some issues found in certain old profiles
cmsBool  _cmsReadMediaWhitePoint(cmsCIEXYZ* Dest, cmsHPROFILE hProfile)
{
    cmsCIEXYZ* Tag;

    _cmsAssert(Dest != NULL);

    Tag = (cmsCIEXYZ*) cmsReadTag(hProfile, cmsSigMediaWhitePointTag);

    // If no wp, take D50
    if (Tag == NULL) {
        *Dest = *cmsD50_XYZ();
        return TRUE;
    }

    // V2 display profiles should give D50
    if (cmsGetEncodedICCversion(hProfile) < 0x4000000) {

        if (cmsGetDeviceClass(hProfile) == cmsSigDisplayClass) {
            *Dest = *cmsD50_XYZ();
            return TRUE;
        }
    }

    // All seems ok
    *Dest = *Tag;
    return TRUE;
}

// Chromatic adaptation matrix. Fix some issues as well
cmsBool  _cmsReadCHAD(cmsMAT3* Dest, cmsHPROFILE hProfile)
{
    cmsMAT3* Tag;

    _cmsAssert(Dest != NULL);

    Tag = (cmsMAT3*) cmsReadTag(hProfile, cmsSigChromaticAdaptationTag);

    if (Tag != NULL) {
        *Dest = *Tag;
        return TRUE;
    }

    // No CHAD available, default it to identity
    _cmsMAT3identity(Dest);

    // V2 display profiles should give D50
    if (cmsGetEncodedICCversion(hProfile) < 0x4000000) {

        if (cmsGetDeviceClass(hProfile) == cmsSigDisplayClass) {

            cmsCIEXYZ* White = (cmsCIEXYZ*) cmsReadTag(hProfile, cmsSigMediaWhitePointTag);

            if (White == NULL) {

                _cmsMAT3identity(Dest);
                return TRUE;
            }

            return _cmsAdaptationMatrix(Dest, NULL, White, cmsD50_XYZ());
        }
    }

    return TRUE;
}

// Returns TRUE if the intent is implemented as CLUT
cmsBool  CMSEXPORT cmsIsCLUT(cmsHPROFILE hProfile, cmsUInt32Number Intent, cmsUInt32Number UsedDirection)
{
    const cmsTagSignature* TagTable;

    // For devicelinks, the supported intent is that one stated in the header
    if (cmsGetDeviceClass(hProfile) == cmsSigLinkClass) {
            return (cmsGetHeaderRenderingIntent(hProfile) == Intent);
    }

    switch (UsedDirection) {

       case LCMS_USED_AS_INPUT: TagTable = Device2PCS16; break;
       case LCMS_USED_AS_OUTPUT:TagTable = PCS2Device16; break;

       // For proofing, we need rel. colorimetric in output. Let's do some recursion
       case LCMS_USED_AS_PROOF:
           return cmsIsIntentSupported(hProfile, Intent, LCMS_USED_AS_INPUT) &&
                  cmsIsIntentSupported(hProfile, INTENT_RELATIVE_COLORIMETRIC, LCMS_USED_AS_OUTPUT);

       default:
           cmsSignalError(cmsGetProfileContextID(hProfile), cmsERROR_RANGE, "Unexpected direction (%d)", UsedDirection);
           return FALSE;
    }

    return cmsIsTag(hProfile, TagTable[Intent]);

}

// Compute Black tone curve on a CMYK -> CMYK transform. This is done by
// using the proof direction on both profiles to find K->L* relationship
// then joining both curves. dwFlags may include black point compensation.
cmsToneCurve* _cmsBuildKToneCurve(cmsContext        ContextID,
                                   cmsUInt32Number   nPoints,
                                   cmsUInt32Number   nProfiles,
                                   const cmsUInt32Number Intents[],
                                   const cmsHPROFILE hProfiles[],
                                   const cmsBool     BPC[],
                                   const cmsFloat64Number AdaptationStates[],
                                   cmsUInt32Number   dwFlags)
{
    cmsToneCurve *in, *out, *KTone;

    // Make sure CMYK -> CMYK
    if (cmsGetColorSpace(hProfiles[0]) != cmsSigCmykData ||
        cmsGetColorSpace(hProfiles[nProfiles-1])!= cmsSigCmykData) return NULL;


    // Make sure last is an output profile
    if (cmsGetDeviceClass(hProfiles[nProfiles - 1]) != cmsSigOutputClass) return NULL;

    // Create individual curves. BPC works also as each K to L* is
    // computed as a BPC to zero black point in case of L*
    in  = ComputeKToLstar(ContextID, nPoints, nProfiles - 1, Intents, hProfiles, BPC, AdaptationStates, dwFlags);
    if (in == NULL) return NULL;

    out = ComputeKToLstar(ContextID, nPoints, 1,
                            Intents + (nProfiles - 1),
                            hProfiles + (nProfiles - 1),
                            BPC + (nProfiles - 1),
                            AdaptationStates + (nProfiles - 1),
                            dwFlags);
    if (out == NULL) {
        cmsFreeToneCurve(in);
        return NULL;
    }

    // Build the relationship. This effectively limits the maximum accuracy to 16 bits, but
    // since this is used on black-preserving LUTs, we are not loosing  accuracy in any case
    KTone = cmsJoinToneCurve(ContextID, in, out, nPoints);

    // Get rid of components
    cmsFreeToneCurve(in); cmsFreeToneCurve(out);

    // Something went wrong...
    if (KTone == NULL) return NULL;

    // Make sure it is monotonic
    if (!cmsIsToneCurveMonotonic(KTone)) {

        cmsFreeToneCurve(KTone);
        return NULL;
    }

    return KTone;
}

IccProfile::ProfileType IccProfile::type()
{
    if (!d)
    {
        return InvalidType;
    }

    if (d->type != InvalidType)
    {
        return d->type;
    }

    if (!open())
    {
        return InvalidType;
    }

    LcmsLock lock;

    switch ((int)cmsGetDeviceClass(d->handle))
    {
        case icSigInputClass:
        case 0x6e6b7066: // 'nkbf', proprietary in Nikon profiles
            d->type = Input;
            break;
        case icSigDisplayClass:
            d->type = Display;
            break;
        case icSigOutputClass:
            d->type = Output;
            break;
        case icSigColorSpaceClass:
            d->type = ColorSpace;
            break;
        case icSigLinkClass:
            d->type = DeviceLink;
            break;
        case icSigAbstractClass:
            d->type = Abstract;
            break;
        case icSigNamedColorClass:
            d->type = NamedColor;
            break;
        default:
            break;
    }

    return d->type;
}

static
cmsHPROFILE OpenProfile(const char* File)
{
	cmsHPROFILE h;

       if (!File) 
            return cmsCreate_sRGBProfile();    
       
       if (stricmp(File, "*Lab") == 0)
                return cmsCreateLabProfile(NULL);
       
       if (stricmp(File, "*XYZ") == 0)
                return cmsCreateXYZProfile();
         
	   if (stricmp(File, "*srgb") == 0)
				return cmsCreate_sRGBProfile();

       
	   if (stricmp(File, "*Gray22") == 0) {
		   LPGAMMATABLE Gamma = cmsBuildGamma(256, 2.2);
		   cmsHPROFILE hProfile = cmsCreateGrayProfile(cmsD50_xyY(), Gamma);
		   cmsFreeGamma(Gamma);
		   return hProfile;

	   }
       
       if (stricmp(File, "*Lin2222") == 0) {

            LPGAMMATABLE Gamma = cmsBuildGamma(256, 2.2);
            LPGAMMATABLE Gamma4[4];
            cmsHPROFILE hProfile; 

            Gamma4[0] = Gamma4[1] = Gamma4[2] = Gamma4[3] = Gamma;
            hProfile = cmsCreateLinearizationDeviceLink(icSigCmykData, Gamma4);
		    cmsFreeGamma(Gamma);
		    return hProfile;

	   }


       h = cmsOpenProfileFromFile(File, "r");

	   
       if (cmsGetDeviceClass(h) == icSigNamedColorClass)
			FatalError("ERROR: Cannot make devicelink of named color profiles!");
       

	   return h;
}

// Detect Total area coverage of the profile
cmsFloat64Number CMSEXPORT cmsDetectTAC(cmsHPROFILE hProfile)
{
    cmsTACestimator bp;
    cmsUInt32Number dwFormatter;
    cmsUInt32Number GridPoints[MAX_INPUT_DIMENSIONS];
    cmsHPROFILE hLab;
    cmsContext ContextID = cmsGetProfileContextID(hProfile);

    // TAC only works on output profiles
    if (cmsGetDeviceClass(hProfile) != cmsSigOutputClass) {
        return 0;
    }

    // Create a fake formatter for result
    dwFormatter = cmsFormatterForColorspaceOfProfile(hProfile, 4, TRUE);

    bp.nOutputChans = T_CHANNELS(dwFormatter);
    bp.MaxTAC = 0;    // Initial TAC is 0

    //  for safety
    if (bp.nOutputChans >= cmsMAXCHANNELS) return 0;

    hLab = cmsCreateLab4ProfileTHR(ContextID, NULL);
    if (hLab == NULL) return 0;
    // Setup a roundtrip on perceptual intent in output profile for TAC estimation
    bp.hRoundTrip = cmsCreateTransformTHR(ContextID, hLab, TYPE_Lab_16,
                                          hProfile, dwFormatter, INTENT_PERCEPTUAL, cmsFLAGS_NOOPTIMIZE|cmsFLAGS_NOCACHE);

    cmsCloseProfile(hLab);
    if (bp.hRoundTrip == NULL) return 0;

    // For L* we only need black and white. For C* we need many points
    GridPoints[0] = 6;
    GridPoints[1] = 74;
    GridPoints[2] = 74;


    if (!cmsSliceSpace16(3, GridPoints, EstimateTAC, &bp)) {
        bp.MaxTAC = 0;
    }

    cmsDeleteTransform(bp.hRoundTrip);

    // Results in %
    return bp.MaxTAC;
}

static
cmsUInt32Number  GenerateCRD(cmsContext ContextID,
							 cmsHPROFILE hProfile, 
							 cmsUInt32Number Intent, cmsUInt32Number dwFlags,
							 cmsIOHANDLER* mem)
{    
	cmsUInt32Number dwBytesUsed;

	if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {

		EmitHeader(mem, "Color Rendering Dictionary (CRD)", hProfile);
	}


	// Is a named color profile?
	if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {

		if (!WriteNamedColorCRD(mem, hProfile, Intent, dwFlags)) {
			return 0;
		}
	}
	else {

		// CRD are always implemented as LUT 

		if (!WriteOutputLUT(mem, hProfile, Intent, dwFlags)) {
			return 0;
		}
	}

	if (!(dwFlags & cmsFLAGS_NODEFAULTRESOURCEDEF)) {

		_cmsIOPrintf(mem, "%%%%EndResource\n");
		_cmsIOPrintf(mem, "\n%% CRD End\n");
	}

	// Done, keep memory usage
	dwBytesUsed = mem ->UsedSpace;

	// Finally, return used byte count
	return dwBytesUsed;

	cmsUNUSED_PARAMETER(ContextID);
}

icProfileClassSignature ColorProfile::GetDeviceClass() const
{
	ASSERT(profile_ != 0);
	return cmsGetDeviceClass(profile_);
}

// Default handler for ICC-style intents
static
cmsPipeline* DefaultICCintents(cmsContext       ContextID,
                               cmsUInt32Number  nProfiles,
                               cmsUInt32Number  TheIntents[],
                               cmsHPROFILE      hProfiles[],
                               cmsBool          BPC[],
                               cmsFloat64Number AdaptationStates[],
                               cmsUInt32Number  dwFlags)
{
    cmsPipeline* Lut = NULL;
    cmsPipeline* Result;
    cmsHPROFILE hProfile;
    cmsMAT3 m;
    cmsVEC3 off;
    cmsColorSpaceSignature ColorSpaceIn, ColorSpaceOut, CurrentColorSpace;
    cmsProfileClassSignature ClassSig;
    cmsUInt32Number  i, Intent;

    // For safety
    if (nProfiles == 0) return NULL;

    // Allocate an empty LUT for holding the result. 0 as channel count means 'undefined'
    Result = cmsPipelineAlloc(ContextID, 0, 0);
    if (Result == NULL) return NULL;

    CurrentColorSpace = cmsGetColorSpace(hProfiles[0]);

    for (i=0; i < nProfiles; i++) {

        cmsBool  lIsDeviceLink, lIsInput;

        hProfile      = hProfiles[i];
        ClassSig      = cmsGetDeviceClass(hProfile);
        lIsDeviceLink = (ClassSig == cmsSigLinkClass || ClassSig == cmsSigAbstractClass );

        // First profile is used as input unless devicelink or abstract
        if ((i == 0) && !lIsDeviceLink) {
            lIsInput = TRUE;
        }
        else {
          // Else use profile in the input direction if current space is not PCS
        lIsInput      = (CurrentColorSpace != cmsSigXYZData) &&
                        (CurrentColorSpace != cmsSigLabData);
        }

        Intent        = TheIntents[i];

        if (lIsInput || lIsDeviceLink) {

            ColorSpaceIn    = cmsGetColorSpace(hProfile);
            ColorSpaceOut   = cmsGetPCS(hProfile);
        }
        else {

            ColorSpaceIn    = cmsGetPCS(hProfile);
            ColorSpaceOut   = cmsGetColorSpace(hProfile);
        }

        if (!ColorSpaceIsCompatible(ColorSpaceIn, CurrentColorSpace)) {

            cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "ColorSpace mismatch");
            goto Error;
        }

        // If devicelink is found, then no custom intent is allowed and we can
        // read the LUT to be applied. Settings don't apply here.
        if (lIsDeviceLink || ((ClassSig == cmsSigNamedColorClass) && (nProfiles == 1))) {

            // Get the involved LUT from the profile
            Lut = _cmsReadDevicelinkLUT(hProfile, Intent);
            if (Lut == NULL) goto Error;

            // What about abstract profiles?
             if (ClassSig == cmsSigAbstractClass && i > 0) {
                if (!ComputeConversion(i, hProfiles, Intent, BPC[i], AdaptationStates[i], &m, &off)) goto Error;
             }
             else {
                _cmsMAT3identity(&m);
                _cmsVEC3init(&off, 0, 0, 0);
             }


            if (!AddConversion(Result, CurrentColorSpace, ColorSpaceIn, &m, &off)) goto Error;

        }
        else {

            if (lIsInput) {
                // Input direction means non-pcs connection, so proceed like devicelinks
                Lut = _cmsReadInputLUT(hProfile, Intent);
                if (Lut == NULL) goto Error;
            }
            else {

                // Output direction means PCS connection. Intent may apply here
                Lut = _cmsReadOutputLUT(hProfile, Intent);
                if (Lut == NULL) goto Error;


//.........这里部分代码省略.........

cmsHPROFILE LCMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransform, DWORD dwFlags)
{
    cmsHPROFILE hICC;
    _LPcmsTRANSFORM v = (_LPcmsTRANSFORM) hTransform;
    LPLUT Lut;
    LCMSBOOL MustFreeLUT;
    LPcmsNAMEDCOLORLIST InputColorant = NULL;
    LPcmsNAMEDCOLORLIST OutputColorant = NULL;
    
    
    // Check if is a named color transform
    
    if (cmsGetDeviceClass(v ->InputProfile) == icSigNamedColorClass) {
        
        return CreateNamedColorDevicelink(hTransform);
        
    }
    
    if (v ->DeviceLink) {
        
        Lut = v -> DeviceLink;
        MustFreeLUT = FALSE;
    }
    else {
        
        Lut = _cmsPrecalculateDeviceLink(hTransform, dwFlags);
        if (!Lut) return NULL;
        MustFreeLUT = TRUE;
    }
    
    hICC = _cmsCreateProfilePlaceholder();
    if (!hICC) {                          // can't allocate
        
        if (MustFreeLUT) cmsFreeLUT(Lut);
        return NULL;
    }
    
    
    FixColorSpaces(hICC, v -> EntryColorSpace, v -> ExitColorSpace, dwFlags);             
    
    cmsSetRenderingIntent(hICC,  v -> Intent); 
    
    // Implement devicelink profile using following tags:
    //
    //  1 icSigProfileDescriptionTag
    //  2 icSigMediaWhitePointTag
    //  3 icSigAToB0Tag
    
    
    cmsAddTag(hICC, icSigDeviceMfgDescTag,       (LPVOID) "LittleCMS");       
    cmsAddTag(hICC, icSigProfileDescriptionTag,  (LPVOID) "Device link");
    cmsAddTag(hICC, icSigDeviceModelDescTag,     (LPVOID) "Device link");      
    
    
    cmsAddTag(hICC, icSigMediaWhitePointTag,  (LPVOID) cmsD50_XYZ());
    
    if (cmsGetDeviceClass(hICC) == icSigOutputClass) {
                
        cmsAddTag(hICC, icSigBToA0Tag, (LPVOID) Lut);
    }
    else
        cmsAddTag(hICC, icSigAToB0Tag, (LPVOID) Lut);
    
    
    
    // Try to read input and output colorant table
    if (cmsIsTag(v ->InputProfile, icSigColorantTableTag)) {
        
        // Input table can only come in this way.
        InputColorant = cmsReadColorantTable(v ->InputProfile, icSigColorantTableTag);
    }
    
    // Output is a little bit more complex.    
    if (cmsGetDeviceClass(v ->OutputProfile) == icSigLinkClass) {
        
        // This tag may exist only on devicelink profiles.        
        if (cmsIsTag(v ->OutputProfile, icSigColorantTableOutTag)) {
            
            OutputColorant = cmsReadColorantTable(v ->OutputProfile, icSigColorantTableOutTag);
        }
        
    } else {
        
        if (cmsIsTag(v ->OutputProfile, icSigColorantTableTag)) {
            
            OutputColorant = cmsReadColorantTable(v ->OutputProfile, icSigColorantTableTag);
        }     
    }
    
    if (InputColorant) 
           cmsAddTag(hICC, icSigColorantTableTag, InputColorant);       
       
    if (OutputColorant) 
           cmsAddTag(hICC, icSigColorantTableOutTag, OutputColorant);       
       
       
       
    if (MustFreeLUT) cmsFreeLUT(Lut);
    if (InputColorant) cmsFreeNamedColorList(InputColorant);
    if (OutputColorant) cmsFreeNamedColorList(OutputColorant);
//.........这里部分代码省略.........

icProfileClassSignature dkCmsGetDeviceClass(cmsHPROFILE hProfile)
{
    return static_cast<icProfileClassSignature>( cmsGetDeviceClass(hProfile) );
}

// Creates all needed color transforms
static
cmsBool OpenTransforms(void)
{
    cmsHPROFILE hInput, hOutput, hProof;
    cmsUInt32Number dwIn, dwOut, dwFlags;
    cmsNAMEDCOLORLIST* List;
    int i;

    // We don't need cache
    dwFlags = cmsFLAGS_NOCACHE;

    if (lIsDeviceLink) {

        hInput  = OpenStockProfile(0, cInProf);
        if (hInput == NULL) return FALSE; 
        hOutput = NULL;
        hProof  = NULL;

        if (cmsGetDeviceClass(hInput) == cmsSigNamedColorClass) {
            OutputColorSpace  = cmsGetColorSpace(hInput);
            InputColorSpace = cmsGetPCS(hInput);
        }
        else {
            InputColorSpace  = cmsGetColorSpace(hInput);
            OutputColorSpace = cmsGetPCS(hInput);
        }

        // Read colorant tables if present
        if (cmsIsTag(hInput, cmsSigColorantTableTag)) {
            List = cmsReadTag(hInput, cmsSigColorantTableTag);
            InputColorant = cmsDupNamedColorList(List);
            InputRange = 1;
        }
        else InputColorant = ComponentNames(InputColorSpace, TRUE);

        if (cmsIsTag(hInput, cmsSigColorantTableOutTag)){

            List = cmsReadTag(hInput, cmsSigColorantTableOutTag);
            OutputColorant = cmsDupNamedColorList(List);
            OutputRange = 1;
        }
        else OutputColorant = ComponentNames(OutputColorSpace, FALSE);

    }
    else {

        hInput  = OpenStockProfile(0, cInProf);
        if (hInput == NULL) return FALSE;

        hOutput = OpenStockProfile(0, cOutProf);    
        if (hOutput == NULL) return FALSE;
        hProof  = NULL;


        if (cmsGetDeviceClass(hInput) == cmsSigLinkClass ||
            cmsGetDeviceClass(hOutput) == cmsSigLinkClass)   
            FatalError("Use %cl flag for devicelink profiles!\n", SW);


        InputColorSpace   = cmsGetColorSpace(hInput);
        OutputColorSpace  = cmsGetColorSpace(hOutput);

        // Read colorant tables if present
        if (cmsIsTag(hInput, cmsSigColorantTableTag)) {
            List = cmsReadTag(hInput, cmsSigColorantTableTag);
            InputColorant = cmsDupNamedColorList(List);
            if (cmsNamedColorCount(InputColorant) <= 3) 
                SetRange(255, TRUE);
            else
                SetRange(1, TRUE);  // Inks are already divided by 100 in the formatter

        }
        else InputColorant = ComponentNames(InputColorSpace, TRUE);

        if (cmsIsTag(hOutput, cmsSigColorantTableTag)){

            List = cmsReadTag(hOutput, cmsSigColorantTableTag);
            OutputColorant = cmsDupNamedColorList(List);
            if (cmsNamedColorCount(OutputColorant) <= 3) 
                SetRange(255, FALSE);
            else
                SetRange(1, FALSE);  // Inks are already divided by 100 in the formatter
        }
        else OutputColorant = ComponentNames(OutputColorSpace, FALSE);


        if (cProofing != NULL) {

            hProof = OpenStockProfile(0, cProofing);
            if (hProof == NULL) return FALSE;
            dwFlags |= cmsFLAGS_SOFTPROOFING;
        }
    }

    // Print information on profiles
    if (Verbose > 2) {

        printf("Profile:\n");
        PrintProfileInformation(hInput);
//.........这里部分代码省略.........

// This one includes abstract profiles as well. Matrix-shaper cannot be obtained on that device class. The
// tag name here may default to AToB0
cmsPipeline* _cmsReadDevicelinkLUT(cmsHPROFILE hProfile, int Intent)
{
    cmsPipeline* Lut;
    cmsTagTypeSignature OriginalType;
    cmsTagSignature tag16;
    cmsTagSignature tagFloat;
    cmsContext ContextID = cmsGetProfileContextID(hProfile);


    if (Intent < INTENT_PERCEPTUAL || Intent > INTENT_ABSOLUTE_COLORIMETRIC)
        return NULL;

    tag16 = Device2PCS16[Intent];
    tagFloat = Device2PCSFloat[Intent];

    // On named color, take the appropriate tag
    if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {

        cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*)cmsReadTag(hProfile, cmsSigNamedColor2Tag);

        if (nc == NULL) return NULL;

        Lut = cmsPipelineAlloc(ContextID, 0, 0);
        if (Lut == NULL)
            goto Error;

        if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocNamedColor(nc, FALSE)))
            goto Error;

        if (cmsGetColorSpace(hProfile) == cmsSigLabData)
            if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
                goto Error;

        return Lut;
    Error:
        cmsPipelineFree(Lut);
        cmsFreeNamedColorList(nc);
        return NULL;
    }


    if (cmsIsTag(hProfile, tagFloat)) {  // Float tag takes precedence

        // Floating point LUT are always V
        return _cmsReadFloatDevicelinkTag(hProfile, tagFloat);
    }

    tagFloat = Device2PCSFloat[0];
    if (cmsIsTag(hProfile, tagFloat)) {

        return cmsPipelineDup((cmsPipeline*)cmsReadTag(hProfile, tagFloat));
    }

    if (!cmsIsTag(hProfile, tag16)) {  // Is there any LUT-Based table?

        tag16 = Device2PCS16[0];
        if (!cmsIsTag(hProfile, tag16)) return NULL;
    }

    // Check profile version and LUT type. Do the necessary adjustments if needed

    // Read the tag
    Lut = (cmsPipeline*)cmsReadTag(hProfile, tag16);
    if (Lut == NULL) return NULL;

    // The profile owns the Lut, so we need to copy it
    Lut = cmsPipelineDup(Lut);
    if (Lut == NULL) return NULL;

    // Now it is time for a controversial stuff. I found that for 3D LUTS using
    // Lab used as indexer space,  trilinear interpolation should be used
    if (cmsGetPCS(hProfile) == cmsSigLabData)
        ChangeInterpolationToTrilinear(Lut);

    // After reading it, we have info about the original type
    OriginalType = _cmsGetTagTrueType(hProfile, tag16);

    // We need to adjust data for Lab16 on output
    if (OriginalType != cmsSigLut16Type) return Lut;

    // Here it is possible to get Lab on both sides

    if (cmsGetColorSpace(hProfile) == cmsSigLabData) {
        if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV4ToV2(ContextID)))
            goto Error2;
    }

    if (cmsGetPCS(hProfile) == cmsSigLabData) {
        if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
            goto Error2;
    }

    return Lut;

Error2:
    cmsPipelineFree(Lut);
    return NULL;
}

// Does create a Color Space Array on XYZ colorspace for PostScript usage
static
cmsUInt32Number GenerateCSA(cmsContext ContextID, 
						    cmsHPROFILE hProfile, 
						    cmsUInt32Number Intent, 
						    cmsUInt32Number dwFlags, 
						    cmsIOHANDLER* mem)
{	
	cmsUInt32Number dwBytesUsed;
	cmsPipeline* lut = NULL;
	cmsStage* Matrix, *Shaper;


	// Is a named color profile?
	if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {

		if (!WriteNamedColorCSA(mem, hProfile, Intent)) goto Error;
	}
	else {


		// Any profile class are allowed (including devicelink), but
		// output (PCS) colorspace must be XYZ or Lab
		cmsColorSpaceSignature ColorSpace = cmsGetPCS(hProfile);

		if (ColorSpace != cmsSigXYZData &&
			ColorSpace != cmsSigLabData) {

				cmsSignalError(ContextID, cmsERROR_COLORSPACE_CHECK, "Invalid output color space");
				goto Error;
		}


		// Read the lut with all necessary conversion stages
		lut = _cmsReadInputLUT(hProfile, Intent);
		if (lut == NULL) goto Error;


		// Tone curves + matrix can be implemented without any LUT
		if (cmsPipelineCheckAndRetreiveStages(lut, 2, cmsSigCurveSetElemType, cmsSigMatrixElemType, &Shaper, &Matrix)) {

			if (!WriteInputMatrixShaper(mem, hProfile, Matrix, Shaper)) goto Error;

		}
		else {
		   // We need a LUT for the rest
		   if (!WriteInputLUT(mem, hProfile, Intent, dwFlags)) goto Error;
		}
	}


	// Done, keep memory usage
	dwBytesUsed = mem ->UsedSpace;

	// Get rid of LUT
	if (lut != NULL) cmsPipelineFree(lut);

	// Finally, return used byte count
	return dwBytesUsed;

Error:
	if (lut != NULL) cmsPipelineFree(lut);
	return 0;	
}

// Read and create a BRAND NEW MPE LUT from a given profile. All stuff dependent of version, etc
// is adjusted here in order to create a LUT that takes care of all those details.
// We add intent = -1 as a way to read matrix shaper always, no matter of other LUT
cmsPipeline* _cmsReadInputLUT(cmsHPROFILE hProfile, int Intent)
{
    cmsTagTypeSignature OriginalType;
    cmsTagSignature tag16;
    cmsTagSignature tagFloat;
    cmsContext ContextID = cmsGetProfileContextID(hProfile);

    // On named color, take the appropriate tag
    if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {

        cmsPipeline* Lut;
        cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) cmsReadTag(hProfile, cmsSigNamedColor2Tag);

        if (nc == NULL) return NULL;

        Lut = cmsPipelineAlloc(ContextID, 0, 0);
        if (Lut == NULL) {
            cmsFreeNamedColorList(nc);
            return NULL;
        }

        if (!cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocNamedColor(nc, TRUE)) ||
            !cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID))) {
            cmsPipelineFree(Lut);
            return NULL;
        }
        return Lut;
    }

    // This is an attempt to reuse this function to retrieve the matrix-shaper as pipeline no
    // matter other LUT are present and have precedence. Intent = -1 means just this.
    if (Intent >= INTENT_PERCEPTUAL && Intent <= INTENT_ABSOLUTE_COLORIMETRIC) {

        tag16 = Device2PCS16[Intent];
        tagFloat = Device2PCSFloat[Intent];

        if (cmsIsTag(hProfile, tagFloat)) {  // Float tag takes precedence

            // Floating point LUT are always V4, but the encoding range is no
            // longer 0..1.0, so we need to add an stage depending on the color space
            return _cmsReadFloatInputTag(hProfile, tagFloat);
        }

        // Revert to perceptual if no tag is found
        if (!cmsIsTag(hProfile, tag16)) {
            tag16 = Device2PCS16[0];
        }

        if (cmsIsTag(hProfile, tag16)) { // Is there any LUT-Based table?

            // Check profile version and LUT type. Do the necessary adjustments if needed

            // First read the tag
            cmsPipeline* Lut = (cmsPipeline*) cmsReadTag(hProfile, tag16);
            if (Lut == NULL) return NULL;

            // After reading it, we have now info about the original type
            OriginalType =  _cmsGetTagTrueType(hProfile, tag16);

            // The profile owns the Lut, so we need to copy it
            Lut = cmsPipelineDup(Lut);

            // We need to adjust data only for Lab16 on output
            if (OriginalType != cmsSigLut16Type || cmsGetPCS(hProfile) != cmsSigLabData)
                return Lut;

            // If the input is Lab, add also a conversion at the begin
            if (cmsGetColorSpace(hProfile) == cmsSigLabData &&
                !cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocLabV4ToV2(ContextID)))
                goto Error;

            // Add a matrix for conversion V2 to V4 Lab PCS
            if (!cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID)))
                goto Error;

            return Lut;
Error:
            cmsPipelineFree(Lut);
            return NULL;
        }
    }

    // Lut was not found, try to create a matrix-shaper

    // Check if this is a grayscale profile.
    if (cmsGetColorSpace(hProfile) == cmsSigGrayData) {

        // if so, build appropriate conversion tables.
        // The tables are the PCS iluminant, scaled across GrayTRC
        return BuildGrayInputMatrixPipeline(hProfile);
    }

    // Not gray, create a normal matrix-shaper
    return BuildRGBInputMatrixShaper(hProfile);
}

QList<ScColorProfileInfo> ScLcmsColorMgmtEngineImpl::getAvailableProfileInfo(const QString& directory, bool recursive)
{
	QList<ScColorProfileInfo> profileInfos;

	QDir d(directory, "*", QDir::Name, QDir::Files | QDir::Readable | QDir::Dirs | QDir::NoSymLinks);
	if ((!d.exists()) || (d.count() == 0))
		return profileInfos;

	QString nam = "";
	cmsHPROFILE hIn = NULL;

	for (uint dc = 0; dc < d.count(); ++dc)
	{
		QString file = d[dc];
		if (file == "." ||  file == "..")
			continue;
		QFileInfo fi(directory + "/" + file);
		if (fi.isDir() && !recursive)
			continue;
		else if (fi.isDir() && !file.startsWith('.'))
		{
			QList<ScColorProfileInfo> profileInfos2 = getAvailableProfileInfo(fi.filePath()+"/", true);
			profileInfos.append(profileInfos2);
			continue;
		}

		ScColorProfileInfo profileInfo;
		profileInfo.file = fi.filePath();

		QFile f(fi.filePath());
		QByteArray bb(40, ' ');
		if (!f.open(QIODevice::ReadOnly)) {
			profileInfo.debug = QString("couldn't open %1 as color profile").arg(fi.filePath());
			profileInfos.append(profileInfo);
			continue;
		}
		int len = f.read(bb.data(), 40);
		f.close();
		if (len == 40 && bb[36] == 'a' && bb[37] == 'c' && bb[38] == 's' && bb[39] == 'p')
		{
			const QByteArray profilePath( QString(directory + "/" + file).toLocal8Bit() );
			cmsSetErrorHandler(&cmsErrorHandler);
			try
			{
				hIn = cmsOpenProfileFromFile(profilePath.data(), "r");
				if (hIn == NULL)
					continue;
				const char* profileDescriptor = cmsTakeProductDesc(hIn);
				profileInfo.description = QString(profileDescriptor);
				if (profileInfo.description.isEmpty())
				{
					cmsCloseProfile(hIn);
					profileInfo.debug = QString("Color profile %1 is broken : no valid description").arg(fi.filePath());
					profileInfos.append(profileInfo);
					continue;
				}
				profileInfo.colorSpace  = translateLcmsColorSpaceType( cmsGetColorSpace(hIn) );
				profileInfo.deviceClass = translateLcmsProfileClass( cmsGetDeviceClass(hIn) );
				profileInfos.append(profileInfo);
				cmsCloseProfile(hIn);
				hIn = NULL;
			}
			catch (lcmsException&)
			{
				// Profile is broken
				if (hIn)
				{
					cmsCloseProfile(hIn);
					hIn = NULL;
				}
				profileInfo.debug = QString("Color profile %1 is broken").arg(fi.filePath());
				profileInfos.append(profileInfo);
			}
			cmsSetErrorHandler(NULL);
		}
	}
	cmsSetErrorHandler(NULL);

	return profileInfos;
}

// Read and create a BRAND NEW MPE LUT from a given profile. All stuff dependent of version, etc
// is adjusted here in order to create a LUT that takes care of all those details
cmsPipeline* _cmsReadInputLUT(cmsHPROFILE hProfile, int Intent)
{
    cmsTagTypeSignature OriginalType;
    cmsTagSignature tag16    = Device2PCS16[Intent];
    cmsTagSignature tagFloat = Device2PCSFloat[Intent];
    cmsContext ContextID = cmsGetProfileContextID(hProfile);

    // On named color, take the appropiate tag
    if (cmsGetDeviceClass(hProfile) == cmsSigNamedColorClass) {

        cmsPipeline* Lut; 
        cmsNAMEDCOLORLIST* nc = (cmsNAMEDCOLORLIST*) cmsReadTag(hProfile, cmsSigNamedColor2Tag);

        if (nc == NULL) return NULL;

        Lut = cmsPipelineAlloc(ContextID, 0, 0);
        if (Lut == NULL) {
            cmsFreeNamedColorList(nc);
            return NULL;
        }

        cmsPipelineInsertStage(Lut, cmsAT_BEGIN, _cmsStageAllocNamedColor(nc, TRUE));
        cmsPipelineInsertStage(Lut, cmsAT_END, _cmsStageAllocLabV2ToV4(ContextID));
        return Lut;
    }

    if (cmsIsTag(hProfile, tagFloat)) {  // Float tag takes precedence

        // Floating point LUT are always V4, so no adjustment is required
        return cmsPipelineDup((cmsPipeline*) cmsReadTag(hProfile, tagFloat));
    }

    // Revert to perceptual if no tag is found
    if (!cmsIsTag(hProfile, tag16)) {
        tag16 = Device2PCS16[0];
    }

    if (cmsIsTag(hProfile, tag16)) { // Is there any LUT-Based table?

        // Check profile version and LUT type. Do the necessary adjustments if needed

        // First read the tag
        cmsPipeline* Lut = (cmsPipeline*) cmsReadTag(hProfile, tag16);
        if (Lut == NULL) return NULL;

        // After reading it, we have now info about the original type
        OriginalType =  _cmsGetTagTrueType(hProfile, tag16);

        // The profile owns the Lut, so w