void LcmsColorProfileContainer::DelinearizeFloatValueFast(QVector <double> & Value) const
{
const qreal scale = 65535.0;
const qreal invScale = 1.0 / scale;
if (d->hasColorants) {
//we can only reliably delinearise in the 0-1.0 range, outside of that leave the value alone.
QVector <quint16> TRCtriplet(3);
TRCtriplet[0] = Value[0] * scale;
TRCtriplet[1] = Value[1] * scale;
TRCtriplet[2] = Value[2] * scale;
if (!cmsIsToneCurveLinear(d->redTRC) && Value[0]<1.0) {
TRCtriplet[0] = cmsEvalToneCurve16(d->redTRCReverse, TRCtriplet[0]);
Value[0] = TRCtriplet[0] * invScale;
}
if (!cmsIsToneCurveLinear(d->greenTRC) && Value[1]<1.0) {
TRCtriplet[1] = cmsEvalToneCurve16(d->greenTRCReverse, TRCtriplet[1]);
Value[1] = TRCtriplet[1] * invScale;
}
if (!cmsIsToneCurveLinear(d->blueTRC) && Value[2]<1.0) {
TRCtriplet[2] = cmsEvalToneCurve16(d->blueTRCReverse, TRCtriplet[2]);
Value[2] = TRCtriplet[2] * invScale;
}
} else {
if (cmsIsTag(d->profile, cmsSigGrayTRCTag) && Value[0]<1.0) {
quint16 newValue = cmsEvalToneCurve16(d->grayTRCReverse, Value[0] * scale);
Value[0] = newValue * invScale;
}
}
}
void LcmsColorProfileContainer::LinearizeFloatValueFast(QVector <double> & Value) const
{
//we can only reliably delinearise in the 0-1.0 range, outside of that leave the value alone.
QVector <quint16> TRCtriplet(3);
TRCtriplet[0] = Value[0]*65535;
TRCtriplet[1] = Value[1]*65535;
TRCtriplet[2] = Value[2]*65535;
if (d->hasColorants) {
if (!cmsIsToneCurveLinear(d->redTRC) && Value[0]<1.0) {
TRCtriplet[0] = cmsEvalToneCurve16(d->redTRC, TRCtriplet[0]);
Value[0] = TRCtriplet[0]/65535.0;
}
if (!cmsIsToneCurveLinear(d->greenTRC) && Value[1]<1.0) {
TRCtriplet[1] = cmsEvalToneCurve16(d->greenTRC, TRCtriplet[1]);
Value[1] = TRCtriplet[1]/65535.0;
}
if (!cmsIsToneCurveLinear(d->blueTRC) && Value[2]<1.0) {
TRCtriplet[2] = cmsEvalToneCurve16(d->blueTRC, TRCtriplet[2]);
Value[2] = TRCtriplet[2]/65535.0;
}
} else {
if (cmsIsTag(d->profile, cmsSigGrayTRCTag) && Value[0]<1.0) {
TRCtriplet[0] = (cmsEvalToneCurve16(d->grayTRC, Value[0]*65535));
Value.fill(TRCtriplet[0]/65535.0);
}
}
}
QVector <double> LcmsColorProfileContainer::getEstimatedTRC() const
{
QVector <double> TRCtriplet(3);
if (d->hasColorants) {
if (cmsIsToneCurveLinear(d->redTRC)) {
TRCtriplet[0] = 1.0;
} else {
TRCtriplet[0] = cmsEstimateGamma(d->redTRC, 0.01);
}
if (cmsIsToneCurveLinear(d->greenTRC)) {
TRCtriplet[1] = 1.0;
} else {
TRCtriplet[1] = cmsEstimateGamma(d->greenTRC, 0.01);
}
if (cmsIsToneCurveLinear(d->blueTRC)) {
TRCtriplet[2] = 1.0;
} else {
TRCtriplet[2] = cmsEstimateGamma(d->blueTRC, 0.01);
}
} else {
if (cmsIsTag(d->profile, cmsSigGrayTRCTag)) {
if (cmsIsToneCurveLinear(d->grayTRC)) {
TRCtriplet.fill(1.0);
} else {
TRCtriplet.fill(cmsEstimateGamma(d->grayTRC, 0.01));
}
} else {
TRCtriplet.fill(1.0);
}
}
return TRCtriplet;
}
void LcmsColorProfileContainer::DelinearizeFloatValue(QVector <double> & Value) const
{
QVector <double> TRCtriplet(3);
TRCtriplet[0] = Value[0];
TRCtriplet[1] = Value[1];
TRCtriplet[2] = Value[2];
if (cmsIsTag(d->profile, cmsSigRedTRCTag)) {
if (cmsIsToneCurveLinear(d->redTRC)) {
TRCtriplet[0] = Value[0];
} else {
TRCtriplet[0] = cmsEvalToneCurveFloat(d->redTRCReverse, Value[0]);
}
if (cmsIsToneCurveLinear(d->greenTRC)) {
TRCtriplet[1] = Value[1];
} else {
TRCtriplet[1] = cmsEvalToneCurveFloat(d->greenTRCReverse, Value[1]);
}
if (cmsIsToneCurveLinear(d->blueTRC)) {
TRCtriplet[2] = Value[2];
} else {
TRCtriplet[2] = cmsEvalToneCurveFloat(d->blueTRCReverse, Value[2]);
}
} else {
if (cmsIsTag(d->profile, cmsSigGrayTRCTag)) {
TRCtriplet.fill(cmsEvalToneCurveFloat(d->grayTRCReverse, Value[0]));
}
}
Value = TRCtriplet;
}
