QVector <double> LcmsColorProfileContainer::getColorantsxyY() const
{
cmsCIEXYZ temp1;
cmsCIExyY temp2;
QVector <double> colorants(9);
temp1.X = d->colorants.Red.X;
temp1.Y = d->colorants.Red.Y;
temp1.Z = d->colorants.Red.Z;
cmsXYZ2xyY(&temp2, &temp1);
colorants[0] = temp2.x;
colorants[1] = temp2.y;
colorants[2] = temp2.Y;
temp1.X = d->colorants.Green.X;
temp1.Y = d->colorants.Green.Y;
temp1.Z = d->colorants.Green.Z;
cmsXYZ2xyY(&temp2, &temp1);
colorants[3] = temp2.x;
colorants[4] = temp2.y;
colorants[5] = temp2.Y;
temp1.X = d->colorants.Blue.X;
temp1.Y = d->colorants.Blue.Y;
temp1.Z = d->colorants.Blue.Z;
cmsXYZ2xyY(&temp2, &temp1);
colorants[6] = temp2.x;
colorants[7] = temp2.y;
colorants[8] = temp2.Y;
return colorants;
}
// Approximate a blackbody illuminant based on CHAD information
static
cmsFloat64Number CHAD2Temp(const cmsMAT3* Chad)
{
// Convert D50 across inverse CHAD to get the absolute white point
cmsVEC3 d, s;
cmsCIEXYZ Dest;
cmsCIExyY DestChromaticity;
cmsFloat64Number TempK;
cmsMAT3 m1, m2;
m1 = *Chad;
if (!_cmsMAT3inverse(&m1, &m2)) return FALSE;
s.n[VX] = cmsD50_XYZ() -> X;
s.n[VY] = cmsD50_XYZ() -> Y;
s.n[VZ] = cmsD50_XYZ() -> Z;
_cmsMAT3eval(&d, &m2, &s);
Dest.X = d.n[VX];
Dest.Y = d.n[VY];
Dest.Z = d.n[VZ];
cmsXYZ2xyY(&DestChromaticity, &Dest);
if (!cmsTempFromWhitePoint(&TempK, &DestChromaticity))
return -1.0;
return TempK;
}
LCMSAPI LPcmsCIExyY LCMSEXPORT cmsD50_xyY(void)
{
static cmsCIExyY D50xyY;
cmsXYZ2xyY(&D50xyY, cmsD50_XYZ());
return &D50xyY;
}
const cmsCIExyY* CMSEXPORT cmsD50_xyY(void)
{
static cmsCIExyY D50xyY;
cmsXYZ2xyY(&D50xyY, cmsD50_XYZ());
return &D50xyY;
}
static KoCIExyY RGB2xyY(cmsHPROFILE RGBProfile, qreal red, qreal green, qreal blue)
{
cmsHPROFILE XYZProfile = cmsCreateXYZProfile();
const cmsUInt32Number inputFormat = TYPE_RGB_DBL;
const cmsUInt32Number outputFormat = TYPE_XYZ_DBL;
const cmsUInt32Number transformFlags = cmsFLAGS_LOWRESPRECALC;
cmsHTRANSFORM transform = cmsCreateTransform(RGBProfile, inputFormat, XYZProfile, outputFormat,
INTENT_ABSOLUTE_COLORIMETRIC, transformFlags);
struct XYZPixel {
qreal X;
qreal Y;
qreal Z;
};
struct RGBPixel {
qreal red;
qreal green;
qreal blue;
};
XYZPixel xyzPixel;
RGBPixel rgbPixel;
rgbPixel.red = red;
rgbPixel.green = green;
rgbPixel.blue = blue;
const unsigned int numPixelsToTransform = 1;
cmsDoTransform(transform, &rgbPixel, &xyzPixel, numPixelsToTransform);
cmsCIEXYZ xyzPixelXYZ;
xyzPixelXYZ.X = xyzPixel.X;
xyzPixelXYZ.Y = xyzPixel.Y;
xyzPixelXYZ.Z = xyzPixel.Z;
cmsCIExyY xyzPixelxyY;
cmsXYZ2xyY(&xyzPixelxyY, &xyzPixelXYZ);
cmsDeleteTransform(transform);
cmsCloseProfile(XYZProfile);
KoCIExyY res;
lcmsToPigmentViceVersaStructureCopy(res, xyzPixelxyY);
return res;
}
static
void CreatePrimaryMatrices(LPMONITORPROFILERDATA sys)
{
cmsCIExyY White;
MAT3 tmp;
cmsXYZ2xyY(&White, &sys->hdr.WhitePoint);
cmsBuildRGB2XYZtransferMatrix(&sys -> PrimariesMatrix, &White, &sys->hdr.Primaries);
CopyMemory(&tmp, &sys -> PrimariesMatrix, sizeof(MAT3));
MAT3inverse(&tmp, &sys->PrimariesMatrixRev);
}
static void init(void)
{
cmsCIEXYZ D65_XYZ = {0.95047, 1.0, 1.08883 };
cmsCIExyY D65;
cmsXYZ2xyY(&D65, &D65_XYZ);
cmsToneCurve *linear = cmsBuildGamma(NULL, 1.0);
cmsToneCurve *linrgb[3] = {linear,linear,linear};
cmsCIExyYTRIPLE primaries = {
{0.64, 0.33, 1.0},
{0.30, 0.60, 1.0},
{0.15, 0.06, 1.0}
};
cmsFloat64Number P[5] = { 2.4, 1. / 1.055, 0.055 / 1.055, 1. / 12.92, 0.04045 };
cmsToneCurve *srgb = cmsBuildParametricToneCurve(NULL, 4, P);
cmsToneCurve *srgbcurve[3] = {srgb,srgb,srgb};
cmsHPROFILE hsRGB = cmsCreateRGBProfile(&D65, &primaries, srgbcurve);
cmsHPROFILE hLab = cmsCreateLab4Profile(NULL);
cmsHPROFILE hlRGB = cmsCreateRGBProfile(&D65, &primaries, linrgb);
cmsHPROFILE hlGray = cmsCreateGrayProfile(cmsD50_xyY(), linear);
cmsSetHeaderFlags(hlGray, cmsEmbeddedProfileTrue);
cmsSaveProfileToFile(hlGray,"lgray.icc");
cmsSetHeaderFlags(hlRGB, cmsEmbeddedProfileTrue);
cmsSaveProfileToFile(hlRGB,"lrgb.icc");
xform_srgb_to_lrgb = cmsCreateTransform(hsRGB, TYPE_RGB_DBL,
hlRGB, TYPE_RGB_DBL,
INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOOPTIMIZE /* preserve precision */
);
xform_srgb_to_lab = cmsCreateTransform(hsRGB, TYPE_RGB_DBL, hLab,
TYPE_Lab_DBL, INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOOPTIMIZE);
xform_srgb_to_lgray = cmsCreateTransform(hsRGB, TYPE_RGB_DBL, hlGray,
TYPE_GRAY_DBL, INTENT_RELATIVE_COLORIMETRIC,
cmsFLAGS_NOOPTIMIZE);
cmsCloseProfile(hsRGB);
cmsCloseProfile(hlRGB);
cmsCloseProfile(hLab);
cmsCloseProfile(hlGray);
cmsFreeToneCurve(linear);
cmsFreeToneCurve(srgb);
cmsSetLogErrorHandler(errlog);
/* sRGB, RGB, Lab, Gray */
printf("R',G',B',R,G,B,L,a,b,Gray\n");
}
void _cmsIdentifyWhitePoint(char *Buffer, LPcmsCIEXYZ WhitePt)
{
int i, n;
cmsCIExyY Val;
double T;
WHITEPOINTS SomeIlluminants[140] = {
{"CIE illuminant A", {0.4476, 0.4074, 1.0}},
{"CIE illuminant C", {0.3101, 0.3162, 1.0}},
{"D65 (daylight)", {0.3127, 0.3291, 1.0}},
};
n = FromD40toD150(&SomeIlluminants[3]) + 3;
cmsXYZ2xyY(&Val, WhitePt);
Val.Y = 1.;
for (i=0; i < n; i++)
{
if (InRange(&Val, &SomeIlluminants[i].Val, 0.000005))
{
strcpy(Buffer, "WhitePoint : ");
strcat(Buffer, SomeIlluminants[i].Name);
return;
}
}
T = Robertson(&Val);
if (T > 0)
sprintf(Buffer, "White point near %dK", (int) T);
else
{
sprintf(Buffer, "Unknown white point (X:%1.2g, Y:%1.2g, Z:%1.2g)",
WhitePt -> X, WhitePt -> Y, WhitePt -> Z);
}
}
static
BOOL ComputePrimary(LPMEASUREMENT Linearized,
LPGAMMATABLE TransferCurves[3],
int n,
LPcmsCIExyY Primary)
{
double Ones[3], lmax[3];
cmsCIEXYZ PrimXYZ;
SETOFPATCHES SetPrimary;
int nR;
/* At first, try to see if primaries are already in measurement */
SetPrimary = cmsxPCollBuildSet(Linearized, false);
nR = cmsxPCollPatchesNearPrimary(Linearized, Linearized->Allowed,
n, 32, SetPrimary);
Ones[0] = Ones[1] = Ones[2] = 0;
Ones[n] = 255.0;
cmsxApplyLinearizationTable(Ones, TransferCurves, lmax);
/* Do incremental regression to find primaries */
if (!cmsxRegressionInterpolatorRGB(Linearized, PT_XYZ,
4,
false,
12,
lmax[0], lmax[1], lmax[2],
&PrimXYZ)) return false;
_cmsxClampXYZ100(&PrimXYZ);
cmsXYZ2xyY(Primary, &PrimXYZ);
return true;
}
void dkCmsXYZ2xyY(LPcmsCIExyY Dest, const cmsCIEXYZ* const Source)
{
cmsXYZ2xyY(static_cast<cmsCIExyY*>(Dest), Source);
}
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) {
qWarning() << "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->name = QString::fromWCharArray(buffer);
//apparantly this should give us a localised string??? Not sure about this.
cmsGetProfileInfo(d->profile, cmsInfoModel, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->productDescription = QString::fromWCharArray(buffer);
cmsGetProfileInfo(d->profile, cmsInfoManufacturer, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->manufacturer = QString::fromWCharArray(buffer);
cmsGetProfileInfo(d->profile, cmsInfoCopyright, cmsNoLanguage, cmsNoCountry, buffer, _BUFFER_SIZE_);
d->copyright = QString::fromWCharArray(buffer);
cmsProfileClassSignature profile_class;
profile_class = cmsGetDeviceClass(d->profile);
d->valid = (profile_class != cmsSigNamedColorClass);
//This is where obtain the whitepoint, and convert it to the actual white point of the profile in the case a Chromatic adaption tag is
//present. This is necessary for profiles following the v4 spec.
cmsCIEXYZ baseMediaWhitePoint;//dummy to hold copy of mediawhitepoint if this is modified by chromatic adaption.
if (cmsIsTag(d->profile, cmsSigMediaWhitePointTag)) {
d->mediaWhitePoint = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigMediaWhitePointTag));
baseMediaWhitePoint = d->mediaWhitePoint;
cmsXYZ2xyY(&d->whitePoint, &d->mediaWhitePoint);
if (cmsIsTag(d->profile, cmsSigChromaticAdaptationTag)) {
//the chromatic adaption tag represent a matrix from the actual white point of the profile to D50.
cmsCIEXYZ *CAM1 = (cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigChromaticAdaptationTag);
//We first put all our data into structures we can manipulate.
double d3dummy [3] = {d->mediaWhitePoint.X, d->mediaWhitePoint.Y, d->mediaWhitePoint.Z};
QGenericMatrix<1, 3, double> whitePointMatrix(d3dummy);
QTransform invertDummy(CAM1[0].X, CAM1[0].Y, CAM1[0].Z, CAM1[1].X, CAM1[1].Y, CAM1[1].Z, CAM1[2].X, CAM1[2].Y, CAM1[2].Z);
//we then abuse QTransform's invert function because it probably does matrix invertion 20 times better than I can program.
//if the matrix is uninvertable, invertedDummy will be an identity matrix, which for us means that it won't give any noticeble
//effect when we start multiplying.
QTransform invertedDummy = invertDummy.inverted();
//we then put the QTransform into a generic 3x3 matrix.
double d9dummy [9] = {invertedDummy.m11(), invertedDummy.m12(), invertedDummy.m13(),
invertedDummy.m21(), invertedDummy.m22(), invertedDummy.m23(),
invertedDummy.m31(), invertedDummy.m32(), invertedDummy.m33()
};
QGenericMatrix<3, 3, double> chromaticAdaptionMatrix(d9dummy);
//multiplying our inverted adaption matrix with the whitepoint gives us the right whitepoint.
QGenericMatrix<1, 3, double> result = chromaticAdaptionMatrix * whitePointMatrix;
//and then we pour the matrix into the whitepoint variable. Generic matrix does row/column for indices even though it
//uses column/row for initialising.
d->mediaWhitePoint.X = result(0, 0);
d->mediaWhitePoint.Y = result(1, 0);
d->mediaWhitePoint.Z = result(2, 0);
cmsXYZ2xyY(&d->whitePoint, &d->mediaWhitePoint);
}
}
//This is for RGB profiles, but it only works for matrix profiles. Need to design it to work with non-matrix profiles.
if (cmsIsTag(d->profile, cmsSigRedColorantTag)) {
cmsCIEXYZTRIPLE tempColorants;
tempColorants.Red = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigRedColorantTag));
tempColorants.Green = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigGreenColorantTag));
tempColorants.Blue = *((cmsCIEXYZ *)cmsReadTag(d->profile, cmsSigBlueColorantTag));
//convert to d65, this is useless.
cmsAdaptToIlluminant(&d->colorants.Red, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Red);
cmsAdaptToIlluminant(&d->colorants.Green, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Green);
cmsAdaptToIlluminant(&d->colorants.Blue, &baseMediaWhitePoint, &d->mediaWhitePoint, &tempColorants.Blue);
//d->colorants = tempColorants;
d->hasColorants = true;
} else {
//qDebug()<<d->name<<": has no colorants";
d->hasColorants = false;
}
//retrieve TRC.
if (cmsIsTag(d->profile, cmsSigRedTRCTag) && cmsIsTag(d->profile, cmsSigBlueTRCTag) && cmsIsTag(d->profile, cmsSigGreenTRCTag)) {
d->redTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigRedTRCTag));
d->greenTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigGreenTRCTag));
d->blueTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigBlueTRCTag));
d->redTRCReverse = cmsReverseToneCurve(d->redTRC);
d->greenTRCReverse = cmsReverseToneCurve(d->greenTRC);
d->blueTRCReverse = cmsReverseToneCurve(d->blueTRC);
d->hasTRC = true;
} else if (cmsIsTag(d->profile, cmsSigGrayTRCTag)) {
d->grayTRC = ((cmsToneCurve *)cmsReadTag (d->profile, cmsSigGrayTRCTag));
d->grayTRCReverse = cmsReverseToneCurve(d->grayTRC);
d->hasTRC = true;
} else {
d->hasTRC = false;
}
// 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));
d->version = cmsGetProfileVersion(d->profile);
d->defaultIntent = cmsGetHeaderRenderingIntent(d->profile);
d->isMatrixShaper = cmsIsMatrixShaper(d->profile);
d->isPerceptualCLUT = cmsIsCLUT(d->profile, INTENT_PERCEPTUAL, LCMS_USED_AS_INPUT);
d->isSaturationCLUT = cmsIsCLUT(d->profile, INTENT_SATURATION, LCMS_USED_AS_INPUT);
d->isAbsoluteCLUT = cmsIsCLUT(d->profile, INTENT_SATURATION, LCMS_USED_AS_INPUT);
d->isRelativeCLUT = cmsIsCLUT(d->profile, INTENT_RELATIVE_COLORIMETRIC, LCMS_USED_AS_INPUT);
return true;
}
return false;
}
BOOL cmsxComputeMatrixShaper(const char* ReferenceSheet,
const char* MeasurementSheet,
int Medium,
LPGAMMATABLE TransferCurves[3],
LPcmsCIEXYZ WhitePoint,
LPcmsCIEXYZ BlackPoint,
LPcmsCIExyYTRIPLE Primaries)
{
MEASUREMENT Linearized;
cmsCIEXYZ Black, White;
cmsCIExyYTRIPLE PrimarySet;
LPPATCH PatchWhite, PatchBlack;
LPPATCH PatchRed, PatchGreen, PatchBlue;
double Distance;
/* Load sheets */
if (!cmsxPCollBuildMeasurement(&Linearized,
ReferenceSheet,
MeasurementSheet,
PATCH_HAS_XYZ|PATCH_HAS_RGB)) return false;
/* Any patch to deal of? */
if (cmsxPCollCountSet(&Linearized, Linearized.Allowed) <= 0) return false;
/* Try to see if proper primaries, white and black already present */
PatchWhite = cmsxPCollFindWhite(&Linearized, Linearized.Allowed, &Distance);
if (Distance != 0)
PatchWhite = NULL;
PatchBlack = cmsxPCollFindBlack(&Linearized, Linearized.Allowed, &Distance);
if (Distance != 0)
PatchBlack = NULL;
PatchRed = cmsxPCollFindPrimary(&Linearized, Linearized.Allowed, 0, &Distance);
if (Distance != 0)
PatchRed = NULL;
PatchGreen = cmsxPCollFindPrimary(&Linearized, Linearized.Allowed, 1, &Distance);
if (Distance != 0)
PatchGreen = NULL;
PatchBlue = cmsxPCollFindPrimary(&Linearized, Linearized.Allowed, 2, &Distance);
if (Distance != 0)
PatchBlue= NULL;
/* If we got primaries, then we can also get prelinearization */
/* by Levenberg-Marquardt. This applies on monitor profiles */
if (PatchWhite && PatchRed && PatchGreen && PatchBlue) {
/* Build matrix with primaries */
MAT3 Mat, MatInv;
LPSAMPLEDCURVE Xr,Yr, Xg, Yg, Xb, Yb;
int i, nRes, cnt;
VEC3init(&Mat.v[0], PatchRed->XYZ.X, PatchGreen->XYZ.X, PatchBlue->XYZ.X);
VEC3init(&Mat.v[1], PatchRed->XYZ.Y, PatchGreen->XYZ.Y, PatchBlue->XYZ.Y);
VEC3init(&Mat.v[2], PatchRed->XYZ.Z, PatchGreen->XYZ.Z, PatchBlue->XYZ.Z);
/* Invert matrix */
MAT3inverse(&Mat, &MatInv);
nRes = cmsxPCollCountSet(&Linearized, Linearized.Allowed);
Xr = cmsAllocSampledCurve(nRes);
Yr = cmsAllocSampledCurve(nRes);
Xg = cmsAllocSampledCurve(nRes);
Yg = cmsAllocSampledCurve(nRes);
Xb = cmsAllocSampledCurve(nRes);
Yb = cmsAllocSampledCurve(nRes);
/* Convert XYZ of all patches to RGB */
cnt = 0;
for (i=0; i < Linearized.nPatches; i++) {
if (Linearized.Allowed[i]) {
VEC3 RGBprime, XYZ;
LPPATCH p;
p = Linearized.Patches + i;
XYZ.n[0] = p -> XYZ.X;
XYZ.n[1] = p -> XYZ.Y;
XYZ.n[2] = p -> XYZ.Z;
MAT3eval(&RGBprime, &MatInv, &XYZ);
Xr ->Values[cnt] = p ->Colorant.RGB[0];
Yr ->Values[cnt] = Clip(RGBprime.n[0]);
Xg ->Values[cnt] = p ->Colorant.RGB[1];
Yg ->Values[cnt] = Clip(RGBprime.n[1]);
Xb ->Values[cnt] = p ->Colorant.RGB[2];
Yb ->Values[cnt] = Clip(RGBprime.n[2]);
cnt++;
}
}
TransferCurves[0] = cmsxEstimateGamma(Xr, Yr, 1024);
TransferCurves[1] = cmsxEstimateGamma(Xg, Yg, 1024);
TransferCurves[2] = cmsxEstimateGamma(Xb, Yb, 1024);
if (WhitePoint) {
WhitePoint->X = PatchWhite->XYZ.X;
WhitePoint->Y= PatchWhite ->XYZ.Y;
WhitePoint->Z= PatchWhite ->XYZ.Z;
}
if (BlackPoint && PatchBlack) {
BlackPoint->X = PatchBlack ->XYZ.X;
BlackPoint->Y = PatchBlack ->XYZ.Y;
BlackPoint->Z = PatchBlack ->XYZ.Z;
}
if (Primaries) {
cmsXYZ2xyY(&Primaries->Red, &PatchRed ->XYZ);
cmsXYZ2xyY(&Primaries->Green, &PatchGreen ->XYZ);
cmsXYZ2xyY(&Primaries->Blue, &PatchBlue ->XYZ);
}
cmsFreeSampledCurve(Xr);
cmsFreeSampledCurve(Yr);
cmsFreeSampledCurve(Xg);
cmsFreeSampledCurve(Yg);
cmsFreeSampledCurve(Xb);
cmsFreeSampledCurve(Yb);
cmsxPCollFreeMeasurements(&Linearized);
return true;
}
/* Compute prelinearization */
cmsxComputeLinearizationTables(&Linearized, PT_XYZ, TransferCurves, 1024, Medium);
/* Linearize measurements */
cmsxPCollLinearizePatches(&Linearized, Linearized.Allowed, TransferCurves);
/* Endpoints */
ComputeWhiteAndBlackPoints(&Linearized, TransferCurves, &Black, &White);
/* Primaries */
ComputePrimary(&Linearized, TransferCurves, 0, &PrimarySet.Red);
ComputePrimary(&Linearized, TransferCurves, 1, &PrimarySet.Green);
ComputePrimary(&Linearized, TransferCurves, 2, &PrimarySet.Blue);
if (BlackPoint) {
*BlackPoint = Black;
Div100(BlackPoint);
}
if (WhitePoint) {
*WhitePoint = White;
Div100(WhitePoint);
}
if (Primaries) {
*Primaries = PrimarySet;
}
cmsxPCollFreeMeasurements(&Linearized);
return true;
}
static void
gcm_picker_refresh_results (GcmPickerPrivate *priv)
{
cmsCIExyY xyY;
cmsHPROFILE profile_lab;
cmsHPROFILE profile_rgb;
cmsHPROFILE profile_xyz;
cmsHTRANSFORM transform_error;
cmsHTRANSFORM transform_lab;
cmsHTRANSFORM transform_rgb;
gboolean ret;
CdColorLab color_lab;
CdColorRGB8 color_rgb;
CdColorXYZ color_error;
CdColorXYZ color_xyz;
gdouble temperature = 0.0f;
GtkImage *image;
GtkLabel *label;
g_autoptr(GdkPixbuf) pixbuf = NULL;
g_autofree gchar *text_ambient = NULL;
g_autofree gchar *text_error = NULL;
g_autofree gchar *text_lab = NULL;
g_autofree gchar *text_rgb = NULL;
g_autofree gchar *text_temperature = NULL;
g_autofree gchar *text_whitepoint = NULL;
g_autofree gchar *text_xyz = NULL;
/* nothing set yet */
if (priv->profile_filename == NULL)
return;
/* copy as we're modifying the value */
cd_color_xyz_copy (&priv->last_sample, &color_xyz);
/* create new pixbuf of the right size */
image = GTK_IMAGE (gtk_builder_get_object (priv->builder, "image_preview"));
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8,
gtk_widget_get_allocated_width (GTK_WIDGET (image)),
gtk_widget_get_allocated_height (GTK_WIDGET (image)));
/* lcms scales these for some reason */
color_xyz.X /= 100.0f;
color_xyz.Y /= 100.0f;
color_xyz.Z /= 100.0f;
/* get profiles */
profile_xyz = cmsCreateXYZProfile ();
profile_rgb = cmsOpenProfileFromFile (priv->profile_filename, "r");
profile_lab = cmsCreateLab4Profile (cmsD50_xyY ());
/* create transforms */
transform_rgb = cmsCreateTransform (profile_xyz, TYPE_XYZ_DBL,
profile_rgb, TYPE_RGB_8,
INTENT_PERCEPTUAL, 0);
if (transform_rgb == NULL)
return;
transform_lab = cmsCreateTransform (profile_xyz, TYPE_XYZ_DBL,
profile_lab, TYPE_Lab_DBL,
INTENT_PERCEPTUAL, 0);
if (transform_lab == NULL)
return;
transform_error = cmsCreateTransform (profile_rgb, TYPE_RGB_8,
profile_xyz, TYPE_XYZ_DBL,
INTENT_PERCEPTUAL, 0);
if (transform_error == NULL)
return;
cmsDoTransform (transform_rgb, &color_xyz, &color_rgb, 1);
cmsDoTransform (transform_lab, &color_xyz, &color_lab, 1);
cmsDoTransform (transform_error, &color_rgb, &color_error, 1);
/* destroy lcms state */
cmsDeleteTransform (transform_rgb);
cmsDeleteTransform (transform_lab);
cmsDeleteTransform (transform_error);
cmsCloseProfile (profile_xyz);
cmsCloseProfile (profile_rgb);
cmsCloseProfile (profile_lab);
/* set XYZ */
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_xyz"));
text_xyz = g_strdup_printf ("%.3f, %.3f, %.3f",
priv->last_sample.X,
priv->last_sample.Y,
priv->last_sample.Z);
gtk_label_set_label (label, text_xyz);
/* set LAB */
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_lab"));
text_lab = g_strdup_printf ("%.3f, %.3f, %.3f",
color_lab.L,
color_lab.a,
color_lab.b);
gtk_label_set_label (label, text_lab);
/* set whitepoint */
cmsXYZ2xyY (&xyY, (cmsCIEXYZ *)&priv->last_sample);
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_whitepoint"));
text_whitepoint = g_strdup_printf ("%.3f,%.3f [%.3f]",
xyY.x, xyY.y, xyY.Y);
gtk_label_set_label (label, text_whitepoint);
/* set temperature */
ret = cmsTempFromWhitePoint (&temperature, &xyY);
if (ret) {
/* round to nearest 10K */
temperature = (((guint) temperature) / 10) * 10;
}
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_temperature"));
text_temperature = g_strdup_printf ("%.0fK", temperature);
gtk_label_set_label (label, text_temperature);
/* set RGB */
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_rgb"));
text_rgb = g_strdup_printf ("%i, %i, %i (#%02X%02X%02X)",
color_rgb.R, color_rgb.G, color_rgb.B,
color_rgb.R, color_rgb.G, color_rgb.B);
gtk_label_set_label (label, text_rgb);
gcm_picker_set_pixbuf_color (pixbuf, color_rgb.R, color_rgb.G, color_rgb.B);
/* set error */
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_error"));
if (color_xyz.X > 0.01f &&
color_xyz.Y > 0.01f &&
color_xyz.Z > 0.01f) {
text_error = g_strdup_printf ("%.1f%%, %.1f%%, %.1f%%",
ABS ((color_error.X - color_xyz.X) / color_xyz.X * 100),
ABS ((color_error.Y - color_xyz.Y) / color_xyz.Y * 100),
ABS ((color_error.Z - color_xyz.Z) / color_xyz.Z * 100));
gtk_label_set_label (label, text_error);
} else {
/* TRANSLATORS: this is when the error is invalid */
gtk_label_set_label (label, _("Unknown"));
}
/* set ambient */
label = GTK_LABEL (gtk_builder_get_object (priv->builder, "label_ambient"));
if (priv->last_ambient < 0) {
/* TRANSLATORS: this is when the ambient light level is unknown */
gtk_label_set_label (label, _("Unknown"));
} else {
text_ambient = g_strdup_printf ("%.1f Lux", priv->last_ambient);
gtk_label_set_label (label, text_ambient);
}
/* set image */
gtk_image_set_from_pixbuf (image, pixbuf);
}
BOOL cmsxMonitorProfilerDo(LPMONITORPROFILERDATA sys)
{
cmsCIExyY White;
LPLUT AToB0, BToA0;
AToB0 = BToA0 = NULL;
if (!*sys -> hdr.OutputProfileFile)
return false;
if (sys->hdr.ReferenceSheet[0] || sys->hdr.MeasurementSheet[0]) {
if (sys->hdr.printf) {
sys->hdr.printf("Loading sheets...");
if (sys->hdr.ReferenceSheet[0])
sys->hdr.printf("Reference sheet: %s", sys->hdr.ReferenceSheet);
if (sys->hdr.MeasurementSheet[0])
sys->hdr.printf("Measurement sheet: %s", sys->hdr.MeasurementSheet);
}
if (!cmsxComputeMatrixShaper(sys -> hdr.ReferenceSheet,
sys -> hdr.MeasurementSheet,
MEDIUM_TRANSMISSIVE,
sys -> Prelinearization,
&sys -> hdr.WhitePoint,
&sys -> hdr.BlackPoint,
&sys -> hdr.Primaries)) return false;
if (sys->hdr.printf) {
char Buffer[1024];
_cmsIdentifyWhitePoint(Buffer, &sys ->hdr.WhitePoint);
sys->hdr.printf("%s", Buffer);
sys->hdr.printf("Primaries: R:%1.2g, %1.2g G:%1.2g, %1.2g B:%1.2g, %1.2g",
sys->hdr.Primaries.Red.x,sys->hdr.Primaries.Red.y,
sys->hdr.Primaries.Green.x, sys->hdr.Primaries.Green.y,
sys->hdr.Primaries.Blue.x, sys->hdr.Primaries.Blue.y);
}
}
CreatePrimaryMatrices(sys);
cmsXYZ2xyY(&White, &sys->hdr.WhitePoint);
sys->hdr.hProfile = cmsCreateRGBProfile(&White,
&sys-> hdr.Primaries,
sys -> Prelinearization);
cmsSetDeviceClass(sys->hdr.hProfile, sys->hdr.DeviceClass);
if (sys -> hdr.lUseCIECAM97s)
sys->hdr.PCSType = PT_Lab;
else
sys->hdr.PCSType = PT_XYZ;
cmsSetPCS(sys->hdr.hProfile, _cmsICCcolorSpace(sys->hdr.PCSType));
if (sys -> hdr.lUseCIECAM97s)
CreateLUTS(sys, &AToB0, &BToA0);
cmsxEmbedTextualInfo(&sys ->hdr);
cmsAddTag(sys->hdr.hProfile, icSigMediaWhitePointTag, &sys->hdr.WhitePoint);
cmsAddTag(sys->hdr.hProfile, icSigMediaBlackPointTag, &sys->hdr.BlackPoint);
if (sys->hdr.ProfileVerbosityLevel >= 2) {
cmsxEmbedCharTarget(&sys ->hdr);
}
_cmsSaveProfile(sys->hdr.hProfile, sys->hdr.OutputProfileFile);
cmsCloseProfile(sys->hdr.hProfile);
sys->hdr.hProfile = NULL;
if (AToB0) cmsFreeLUT(AToB0);
if (BToA0) cmsFreeLUT(BToA0);
if (sys ->Prelinearization[0])
cmsFreeGammaTriple(sys -> Prelinearization);
return true;
}
static
BOOL CreateLUTS(LPMONITORPROFILERDATA sys, LPLUT* A2B, LPLUT* B2A)
{
LPLUT AToB0 = cmsAllocLUT();
LPLUT BToA0 = cmsAllocLUT();
LPGAMMATABLE LabG;
cmsCIExyY xyY;
cmsAlloc3DGrid(AToB0, sys->hdr.CLUTPoints, 3, 3);
cmsAlloc3DGrid(BToA0, sys->hdr.CLUTPoints, 3, 3);
/* cmsAllocLinearTable(AToB0, sys -> Prelinearization, 1); */
sys->ReverseTables[0] = cmsReverseGamma(4096, sys ->Prelinearization[0]);
sys->ReverseTables[1] = cmsReverseGamma(4096, sys ->Prelinearization[1]);
sys->ReverseTables[2] = cmsReverseGamma(4096, sys ->Prelinearization[2]);
/* Prelinearization */
LabG = cmsBuildGamma(4096, 3.0);
sys -> PreLab[0] = cmsJoinGammaEx(LabG, sys ->Prelinearization[0], 4096);
sys -> PreLab[1] = cmsJoinGammaEx(LabG, sys ->Prelinearization[1], 4096);
sys -> PreLab[2] = cmsJoinGammaEx(LabG, sys ->Prelinearization[2], 4096);
sys -> PreLabRev[0] = cmsJoinGammaEx(sys ->Prelinearization[0], LabG, 4096);
sys -> PreLabRev[1] = cmsJoinGammaEx(sys ->Prelinearization[1], LabG, 4096);
sys -> PreLabRev[2] = cmsJoinGammaEx(sys ->Prelinearization[2], LabG, 4096);
cmsFreeGamma(LabG);
cmsAllocLinearTable(AToB0, sys->PreLabRev, 1);
cmsAllocLinearTable(BToA0, sys->PreLab, 2);
/* Set CIECAM97s parameters */
sys -> hdr.device.whitePoint.X = sys -> hdr.WhitePoint.X * 100.;
sys -> hdr.device.whitePoint.Y = sys -> hdr.WhitePoint.Y * 100.;
sys -> hdr.device.whitePoint.Z = sys -> hdr.WhitePoint.Z * 100.;
/* Normalize White point for CIECAM97s model */
cmsXYZ2xyY(&xyY, &sys -> hdr.device.whitePoint);
xyY.Y = 100.;
cmsxyY2XYZ(&sys -> hdr.device.whitePoint, &xyY);
sys->hdr.hDevice = cmsCIECAM97sInit(&sys->hdr.device);
sys->hdr.hPCS = cmsCIECAM97sInit(&sys->hdr.PCS);
cmsSample3DGrid(AToB0, RegressionSamplerA2B, sys, 0);
cmsSample3DGrid(BToA0, RegressionSamplerB2A, sys, 0);
cmsCIECAM97sDone(sys->hdr.hDevice);
cmsCIECAM97sDone(sys->hdr.hPCS);
cmsAddTag(sys->hdr.hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(sys->hdr.hProfile, icSigBToA0Tag, BToA0);
/* This is the 0xff00 trick to map white at lattice point */
BToA0 ->Matrix.v[0].n[0] = DOUBLE_TO_FIXED((65535.0 / 65280.0));
*A2B = AToB0;
*B2A = BToA0;
cmsFreeGammaTriple(sys->ReverseTables);
cmsFreeGammaTriple(sys->PreLab);
cmsFreeGammaTriple(sys->PreLabRev);
return true;
}
int main(int argc, char *argv[])
{
LPLUT AToB0, BToA0;
LPGAMMATABLE PreLinear[3];
LPGAMMATABLE Lin;
CARGO Cargo;
cmsHPROFILE hProfile;
cmsCIEXYZ wp;
fprintf(stderr, "Creating lcmscmy.icm...");
wp.X = 55.6549;
wp.Y = 59.0485;
wp.Z = 72.5494;
cmsXYZ2xyY(&Cus, &wp);
InitCargo(&Cargo);
hProfile = cmsCreateLabProfile(&Cus);
// Create linearization
Lin = CreateLinear();
PreLinear[0] = Lin;
PreLinear[1] = Lin;
PreLinear[2] = Lin;
AToB0 = cmsAllocLUT();
BToA0 = cmsAllocLUT();
cmsAlloc3DGrid(AToB0, 33, 3, 3);
cmsAlloc3DGrid(BToA0, 33, 3, 3);
cmsSample3DGrid(AToB0, Reverse, &Cargo, 0);
cmsSample3DGrid(BToA0, Forward, &Cargo, 0);
cmsAllocLinearTable(AToB0, PreLinear, 1);
cmsAllocLinearTable(BToA0, PreLinear, 2);
cmsAddTag(hProfile, icSigAToB0Tag, AToB0);
cmsAddTag(hProfile, icSigBToA0Tag, BToA0);
cmsSetColorSpace(hProfile, icSigCmyData);
cmsAddTag(hProfile, icSigProfileDescriptionTag, "Little cms CMY mixing");
cmsAddTag(hProfile, icSigCopyrightTag, "Copyright (c) Marti Maria, 2002. All rights reserved.");
cmsAddTag(hProfile, icSigDeviceMfgDescTag, "Little cms");
cmsAddTag(hProfile, icSigDeviceModelDescTag, "CMY mixing");
_cmsSaveProfile(hProfile, "lcmscmy.icm");
cmsFreeGamma(Lin);
cmsFreeLUT(AToB0);
cmsFreeLUT(BToA0);
cmsCloseProfile(hProfile);
FreeCargo(&Cargo);
fprintf(stderr, "Done.\n");
return 0;
}