KoColorSpace.cpp 31.3 KB
Newer Older
1 2 3
/*
 *  Copyright (c) 2005 Boudewijn Rempt <boud@valdyas.org>
 *
4
 * This library is free software; you can redistribute it and/or
5
 * modify it under the terms of the GNU Lesser General Public
6
 * License as published by the Free Software Foundation; either
7
 * version 2.1 of the License, or (at your option) any later version.
8
 *
9 10 11
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12
 * Lesser General Public License for more details.
13
 *
14
 * You should have received a copy of the GNU Lesser General Public License
15 16 17 18
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
19 20

#include "KoColorSpace.h"
21
#include "KoColorSpace_p.h"
22

23
#include "KoChannelInfo.h"
Boudewijn Rempt's avatar
Boudewijn Rempt committed
24
#include "DebugPigment.h"
25
#include "KoCompositeOp.h"
Cyrille Berger's avatar
Cyrille Berger committed
26
#include "KoColorTransformation.h"
27 28
#include "KoColorTransformationFactory.h"
#include "KoColorTransformationFactoryRegistry.h"
29
#include "KoColorConversionCache.h"
30 31
#include "KoColorConversionSystem.h"
#include "KoColorSpaceRegistry.h"
32
#include "KoColorProfile.h"
33
#include "KoCopyColorConversionTransformation.h"
34
#include "KoFallBackColorTransformation.h"
35
#include "KoUniqueNumberForIdServer.h"
36
#include "KoMixColorsOp.h"
37
#include "KoConvolutionOp.h"
38
#include "KoCompositeOpRegistry.h"
39

40 41 42
#include <QThreadStorage>
#include <QByteArray>
#include <QBitArray>
43 44
#include <QPolygonF>
#include <QPointF>
45

46

Stefan Nikolaus's avatar
Stefan Nikolaus committed
47
KoColorSpace::KoColorSpace()
48
        : d(new Private())
Stefan Nikolaus's avatar
Stefan Nikolaus committed
49 50 51
{
}

52 53
KoColorSpace::KoColorSpace(const QString &id, const QString &name, KoMixColorsOp* mixColorsOp, KoConvolutionOp* convolutionOp)
        : d(new Private())
54
{
55
    d->id = id;
56
    d->idNumber = KoUniqueNumberForIdServer::instance()->numberForId(d->id);
57 58 59
    d->name = name;
    d->mixColorsOp = mixColorsOp;
    d->convolutionOp = convolutionOp;
60 61 62 63
    d->transfoToRGBA16 = 0;
    d->transfoFromRGBA16 = 0;
    d->transfoToLABA16 = 0;
    d->transfoFromLABA16 = 0;
64 65 66 67
    d->gamutXYY = QPolygonF();
    d->TRCXYY = QPolygonF();
    d->colorants = QVector <qreal> (0);
    d->lumaCoefficients = QVector <qreal> (0);
68
    d->deletability = NotOwnedByRegistry;
69 70
}

71
KoColorSpace::~KoColorSpace()
72
{
73 74
    Q_ASSERT(d->deletability != OwnedByRegistryDoNotDelete);

75
    qDeleteAll(d->compositeOps);
76
    Q_FOREACH (KoChannelInfo * channel, d->channels) {
Cyrille Berger's avatar
Cyrille Berger committed
77 78
        delete channel;
    }
79 80 81 82 83
    if (d->deletability == NotOwnedByRegistry) {
        KoColorConversionCache* cache = KoColorSpaceRegistry::instance()->colorConversionCache();
        if (cache) {
            cache->colorSpaceIsDestroyed(this);
        }
84
    }
85 86
    delete d->mixColorsOp;
    delete d->convolutionOp;
Cyrille Berger's avatar
Cyrille Berger committed
87 88 89 90
    delete d->transfoToRGBA16;
    delete d->transfoFromRGBA16;
    delete d->transfoToLABA16;
    delete d->transfoFromLABA16;
91 92 93
    delete d;
}

94 95
bool KoColorSpace::operator==(const KoColorSpace& rhs) const
{
96 97
    const KoColorProfile* p1 = rhs.profile();
    const KoColorProfile* p2 = profile();
98
    return d->idNumber == rhs.d->idNumber && ((p1 == p2) || (*p1 == *p2));
99 100
}

101 102 103 104
QString KoColorSpace::id() const
{
    return d->id;
}
105

106 107 108 109
QString KoColorSpace::name() const
{
    return d->name;
}
110

111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287
//Color space info stuff.
QPolygonF KoColorSpace::gamutXYY() const
{
    if (d->gamutXYY.empty()) {
        //now, let's decide on the boundary. This is a bit tricky because icc profiles can be both matrix-shaper and cLUT at once if the maker so pleases.
        //first make a list of colors.
        qreal max = 1.0;
        if ((colorModelId().id()=="CMYKA" || colorModelId().id()=="LABA") && colorDepthId().id()=="F32") {
            //boundaries for cmyka/laba have trouble getting the max values for Float, and are pretty awkward in general.
            max = this->channels()[0]->getUIMax();
            
        }
        int samples = 5;//amount of samples in our color space.
        QString name = KoColorSpaceRegistry::instance()->colorSpaceFactory("XYZAF16")->defaultProfile();
        const KoColorSpace* xyzColorSpace = KoColorSpaceRegistry::instance()->colorSpace("XYZA", "F16", name);
        quint8 data[channelCount()];
        quint8 data2[4];//xyza is 4.
        //QVector <qreal> sampleCoordinates(pow(colorChannelCount(),samples));
        //sampleCoordinates.fill(0.0);
        QVector <float> channelValuesF(channelCount());//for getting the coordinates.
        for(int x=0;x<samples;x++){
            if (colorChannelCount()==1) {//gray
                channelValuesF[0]=(max/(samples-1))*(x);
                channelValuesF[1]=max;
                fromNormalisedChannelsValue(data, channelValuesF);
                convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric, KoColorConversionTransformation::adjustmentConversionFlags());
                xyzColorSpace->normalisedChannelsValue(data2,channelValuesF);
                qreal x = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                qreal y = channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                d->gamutXYY<< QPointF(x,y);
            } else {
                for(int y=0;y<samples;y++){
                    for(int z=0;z<samples;z++){
                        if (colorChannelCount()==4) {
                            for(int k=0;k<samples;k++){
                                channelValuesF[0]=(max/(samples-1))*(x);
                                channelValuesF[1]=(max/(samples-1))*(y);
                                channelValuesF[2]=(max/(samples-1))*(z);
                                channelValuesF[3]=(max/(samples-1))*(k);
                                channelValuesF[4]=max;
                                fromNormalisedChannelsValue(data, channelValuesF);
                                convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric, KoColorConversionTransformation::adjustmentConversionFlags());
                                xyzColorSpace->normalisedChannelsValue(data2,channelValuesF);
                                qreal x = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                                qreal y = channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                                d->gamutXYY<< QPointF(x,y);
                            }
                        } else {
                            channelValuesF[0]=(max/(samples-1))*(x);
                            channelValuesF[1]=(max/(samples-1))*(y);
                            channelValuesF[2]=(max/(samples-1))*(z);
                            channelValuesF[3]=max;
                            if (colorModelId().id()!="XYZA") { //no need for conversion when using xyz.
                                fromNormalisedChannelsValue(data, channelValuesF);
                                convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric,         KoColorConversionTransformation::adjustmentConversionFlags());
                                xyzColorSpace->normalisedChannelsValue(data2,channelValuesF);
                            }
                            qreal x = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            qreal y = channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            d->gamutXYY<< QPointF(x,y);
                        }
                    }
                }
                
            }
        }
        //if we ever implement a boundary-checking thing I'd add it here.
        return d->gamutXYY;
    } else {
        return d->gamutXYY;
    }
}

QPolygonF KoColorSpace::estimatedTRCXYY() const
{
    if (d->TRCXYY.empty()){
        qreal max = 1.0;
        if ((colorModelId().id()=="CMYKA" || colorModelId().id()=="LABA") && colorDepthId().id()=="F32") {
            //boundaries for cmyka/laba have trouble getting the max values for Float, and are pretty awkward in general.
            max = this->channels()[0]->getUIMax();
        }
        QString name = KoColorSpaceRegistry::instance()->colorSpaceFactory("XYZAF16")->defaultProfile();
        const KoColorSpace* xyzColorSpace = KoColorSpaceRegistry::instance()->colorSpace("XYZA", "F16", name);
        quint8 data[channelCount()];
        quint8 data2[4];//xyza is 4.
        QVector <float> channelValuesF(channelCount());
        for (int i=0; i<colorChannelCount(); i++) {
            qreal colorantY=1.0;
            if (colorModelId().id()!="CMYKA") {
                for (int j=5; j>0; j--){
                    channelValuesF.fill(0.0);
                    channelValuesF[i] = ((max/4)*(5-j));

                    if (colorModelId().id()!="XYZA") { //no need for conversion when using xyz.
                        fromNormalisedChannelsValue(data, channelValuesF);
                        convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric,         KoColorConversionTransformation::adjustmentConversionFlags());
                        xyzColorSpace->normalisedChannelsValue(data2,channelValuesF);
                    }

                    if (j==0) {
                        colorantY = channelValuesF[1];
                        if (d->colorants.size()<2){
                            d->colorants.resize(3*colorChannelCount());
                            d->colorants[i]  = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            d->colorants[i+1]= channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            d->colorants[i+2]= channelValuesF[1];
                        }
                    }
                    d->TRCXYY << QPointF(channelValuesF[1]/colorantY, ((1.0/4)*(5-j)));
                }
            } else {
                for (int j=0; j<5; j++){
                    channelValuesF.fill(0.0);
                    channelValuesF[i] = ((max/4)*(j));
                    
                    fromNormalisedChannelsValue(data, channelValuesF);

                    convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric,         KoColorConversionTransformation::adjustmentConversionFlags());

                    xyzColorSpace->normalisedChannelsValue(data2,channelValuesF);

                    if (j==0) {
                        colorantY = channelValuesF[1];
                        if (d->colorants.size()<2){
                            d->colorants.resize(3*colorChannelCount());
                            d->colorants[i]  = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            d->colorants[i+1]= channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                            d->colorants[i+2]= channelValuesF[1];
                        }
                    }
                    d->TRCXYY << QPointF(channelValuesF[1]/colorantY, ((1.0/4)*(j)));
                }
            }
        }
        return d->TRCXYY;
    } else {
        return d->TRCXYY;
    }
}

QVector <qreal> KoColorSpace::colorants() const
{
    if (d->colorants.size()>1){
        return d->colorants;
    } else if (profile() && profile()->hasColorants()) {
        d->colorants.resize(3*colorChannelCount());
        d->colorants = profile()->getColorantsxyY();
        return d->colorants;
    } else {
        estimatedTRCXYY();
        return d->colorants;
    }
}
QVector <qreal> KoColorSpace::lumaCoefficients() const
{
    if (d->lumaCoefficients.size()>1){
        return d->lumaCoefficients;
    } else {
        d->lumaCoefficients.resize(3);
        if (colorModelId().id()!="RGBA") {
            d->lumaCoefficients.fill(0.33);
        } else {
            colorants();
            if (d->colorants[2]<0 || d->colorants[5]<0 || d->colorants[8]<0) {
                d->lumaCoefficients[0]=0.2126;
                d->lumaCoefficients[1]=0.7152;
                d->lumaCoefficients[2]=0.0722;
            } else {
                d->lumaCoefficients[0]=d->colorants[2];
                d->lumaCoefficients[1]=d->colorants[5];
                d->lumaCoefficients[2]=d->colorants[8];
            }
        }
        return d->lumaCoefficients;
    }
}

Adrian Page's avatar
q3--  
Adrian Page committed
288
QList<KoChannelInfo *> KoColorSpace::channels() const
289 290 291 292
{
    return d->channels;
}

Boudewijn Rempt's avatar
Boudewijn Rempt committed
293
QBitArray KoColorSpace::channelFlags(bool color, bool alpha) const
294
{
295
    QBitArray ba(d->channels.size());
Boudewijn Rempt's avatar
Boudewijn Rempt committed
296
    if (!color && !alpha) return ba;
297 298 299 300

    for (int i = 0; i < d->channels.size(); ++i) {
        KoChannelInfo * channel = d->channels.at(i);
        if ((color && channel->channelType() == KoChannelInfo::COLOR) ||
Boudewijn Rempt's avatar
Boudewijn Rempt committed
301
                (alpha && channel->channelType() == KoChannelInfo::ALPHA))
302
            ba.setBit(i, true);
303 304 305 306
    }
    return ba;
}

307 308 309
void KoColorSpace::addChannel(KoChannelInfo * ci)
{
    d->channels.push_back(ci);
310
}
311 312 313 314 315
bool KoColorSpace::hasCompositeOp(const QString& id) const
{
    return d->compositeOps.contains(id);
}

316
QList<KoCompositeOp*> KoColorSpace::compositeOps() const
317
{
318 319 320
    return d->compositeOps.values();
}

321 322
KoMixColorsOp* KoColorSpace::mixColorsOp() const
{
323 324 325 326
    return d->mixColorsOp;
}


327 328
KoConvolutionOp* KoColorSpace::convolutionOp() const
{
329
    return d->convolutionOp;
330 331
}

Cyrille Berger's avatar
Cyrille Berger committed
332
const KoCompositeOp * KoColorSpace::compositeOp(const QString & id) const
333
{
334 335
    if (d->compositeOps.contains(id))
        return d->compositeOps.value(id);
336
    else {
Boudewijn Rempt's avatar
Boudewijn Rempt committed
337
        warnPigment << "Asking for non-existent composite operation " << id << ", returning " << COMPOSITE_OVER;
338
        return d->compositeOps.value(COMPOSITE_OVER);
339
    }
340 341 342 343
}

void KoColorSpace::addCompositeOp(const KoCompositeOp * op)
{
344 345
    if (op->colorSpace()->id() == id()) {
        d->compositeOps.insert(op->id(), const_cast<KoCompositeOp*>(op));
346 347 348
    }
}

349
const KoColorConversionTransformation* KoColorSpace::toLabA16Converter() const
350
{
351
    if (!d->transfoToLABA16) {
352
        d->transfoToLABA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, KoColorSpaceRegistry::instance()->lab16(""), KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
353
    }
354
    return d->transfoToLABA16;
355
}
356

357
const KoColorConversionTransformation* KoColorSpace::fromLabA16Converter() const
358
{
359
    if (!d->transfoFromLABA16) {
360
        d->transfoFromLABA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(KoColorSpaceRegistry::instance()->lab16(""), this, KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
361
    }
362
    return d->transfoFromLABA16;
363
}
364
const KoColorConversionTransformation* KoColorSpace::toRgbA16Converter() const
365
{
366
    if (!d->transfoToRGBA16) {
367
        d->transfoToRGBA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, KoColorSpaceRegistry::instance()->rgb16(""), KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
368
    }
369
    return d->transfoToRGBA16;
370
}
371
const KoColorConversionTransformation* KoColorSpace::fromRgbA16Converter() const
372
{
373
    if (!d->transfoFromRGBA16) {
374
        d->transfoFromRGBA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(KoColorSpaceRegistry::instance()->rgb16("") , this, KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
375
    }
376 377 378 379 380
    return d->transfoFromRGBA16;
}

void KoColorSpace::toLabA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
381
    toLabA16Converter()->transform(src, dst, nPixels);
382 383 384 385
}

void KoColorSpace::fromLabA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
386
    fromLabA16Converter()->transform(src, dst, nPixels);
387 388 389 390
}

void KoColorSpace::toRgbA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
391
    toRgbA16Converter()->transform(src, dst, nPixels);
392 393 394 395
}

void KoColorSpace::fromRgbA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
396
    fromRgbA16Converter()->transform(src, dst, nPixels);
397 398
}

399
KoColorConversionTransformation* KoColorSpace::createColorConverter(const KoColorSpace * dstColorSpace, KoColorConversionTransformation::Intent renderingIntent, KoColorConversionTransformation::ConversionFlags conversionFlags) const
400
{
401
    if (*this == *dstColorSpace) {
402
        return new KoCopyColorConversionTransformation(this);
403
    } else {
404
        return KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, dstColorSpace, renderingIntent, conversionFlags);
405
    }
406 407
}

408
bool KoColorSpace::convertPixelsTo(const quint8 * src,
Boudewijn Rempt's avatar
Boudewijn Rempt committed
409 410 411
                                   quint8 * dst,
                                   const KoColorSpace * dstColorSpace,
                                   quint32 numPixels,
412
                                   KoColorConversionTransformation::Intent renderingIntent,
413
                                   KoColorConversionTransformation::ConversionFlags conversionFlags) const
414
{
415
    if (*this == *dstColorSpace) {
416 417 418
        if (src != dst) {
            memcpy(dst, src, numPixels * sizeof(quint8) * pixelSize());
        }
419
    } else {
420
        KoCachedColorConversionTransformation cct = KoColorSpaceRegistry::instance()->colorConversionCache()->cachedConverter(this, dstColorSpace, renderingIntent, conversionFlags);
421 422
        cct.transformation()->transform(src, dst, numPixels);
    }
423 424
    return true;
}
425

426

Boudewijn Rempt's avatar
Boudewijn Rempt committed
427 428 429
void KoColorSpace::bitBlt(const KoColorSpace* srcSpace, const KoCompositeOp::ParameterInfo& params, const KoCompositeOp* op,
                          KoColorConversionTransformation::Intent renderingIntent,
                          KoColorConversionTransformation::ConversionFlags conversionFlags) const
430 431
{
    Q_ASSERT_X(*op->colorSpace() == *this, "KoColorSpace::bitBlt", QString("Composite op is for color space %1 (%2) while this is %3 (%4)").arg(op->colorSpace()->id()).arg(op->colorSpace()->profile()->name()).arg(id()).arg(profile()->name()).toLatin1());
432

433 434
    if(params.rows <= 0 || params.cols <= 0)
        return;
435

436
    if(!(*this == *srcSpace)) {
437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478
         if (preferCompositionInSourceColorSpace() &&
             srcSpace->hasCompositeOp(op->id())) {

             quint32           conversionDstBufferStride = params.cols * srcSpace->pixelSize();
             QVector<quint8> * conversionDstCache        = threadLocalConversionCache(params.rows * conversionDstBufferStride);
             quint8*           conversionDstData         = conversionDstCache->data();

             for(qint32 row=0; row<params.rows; row++) {
                 convertPixelsTo(params.dstRowStart + row * params.dstRowStride,
                                 conversionDstData  + row * conversionDstBufferStride, srcSpace, params.cols,
                                 renderingIntent, conversionFlags);
             }

             // FIXME: do not calculate the otherOp every time
             const KoCompositeOp *otherOp = srcSpace->compositeOp(op->id());

             KoCompositeOp::ParameterInfo paramInfo(params);
             paramInfo.dstRowStart  = conversionDstData;
             paramInfo.dstRowStride = conversionDstBufferStride;
             otherOp->composite(paramInfo);

             for(qint32 row=0; row<params.rows; row++) {
                 srcSpace->convertPixelsTo(conversionDstData  + row * conversionDstBufferStride,
                                           params.dstRowStart + row * params.dstRowStride, this, params.cols,
                                           renderingIntent, conversionFlags);
             }

        } else {
            quint32           conversionBufferStride = params.cols * pixelSize();
            QVector<quint8> * conversionCache        = threadLocalConversionCache(params.rows * conversionBufferStride);
            quint8*           conversionData         = conversionCache->data();

            for(qint32 row=0; row<params.rows; row++) {
                srcSpace->convertPixelsTo(params.srcRowStart + row * params.srcRowStride,
                                          conversionData     + row * conversionBufferStride, this, params.cols,
                                          renderingIntent, conversionFlags);
            }

            KoCompositeOp::ParameterInfo paramInfo(params);
            paramInfo.srcRowStart  = conversionData;
            paramInfo.srcRowStride = conversionBufferStride;
            op->composite(paramInfo);
479 480
        }
    }
481 482 483
    else {
        op->composite(params);
    }
484 485 486
}


487 488 489
QVector<quint8> * KoColorSpace::threadLocalConversionCache(quint32 size) const
{
    QVector<quint8> * ba = 0;
490 491 492 493
    if (!d->conversionCache.hasLocalData()) {
        ba = new QVector<quint8>(size, '0');
        d->conversionCache.setLocalData(ba);
    } else {
494
        ba = d->conversionCache.localData();
495 496
        if ((quint8)ba->size() < size)
            ba->resize(size);
497 498 499
    }
    return ba;
}
500

501
KoColorTransformation* KoColorSpace::createColorTransformation(const QString & id, const QHash<QString, QVariant> & parameters) const
502
{
503 504 505
    KoColorTransformationFactory* factory = KoColorTransformationFactoryRegistry::instance()->get(id);
    if (!factory) return 0;
    QPair<KoID, KoID> model(colorModelId(), colorDepthId());
506
    QList< QPair<KoID, KoID> > models = factory->supportedModels();
507 508
    if (models.isEmpty() || models.contains(model)) {
        return factory->createTransformation(this, parameters);
509 510
    } else {
        // Find the best solution
511
        // TODO use the color conversion cache
512 513 514 515 516 517
        KoColorConversionTransformation* csToFallBack = 0;
        KoColorConversionTransformation* fallBackToCs = 0;
        KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverters(this, models, csToFallBack, fallBackToCs);
        Q_ASSERT(csToFallBack);
        Q_ASSERT(fallBackToCs);
        KoColorTransformation* transfo = factory->createTransformation(fallBackToCs->srcColorSpace(), parameters);
518
        return new KoFallBackColorTransformation(csToFallBack, fallBackToCs, transfo);
519 520
    }
}
521

522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764
void KoColorSpace::increaseLuminosity(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    if (profile()->hasTRC()){
        //only linearise and crunch the luma if there's a TRC
        profile()->linearizeFloatValue(channelValues);
        qreal hue, sat, luma = 0.0;
        toHSY(channelValues, &hue, &sat, &luma);
        luma = pow(luma, 1/2.2);
        luma += step;
        luma = pow(luma, 2.2);
        channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    } else {
        qreal hue, sat, luma = 0.0;
        toHSY(channelValues, &hue, &sat, &luma);
        luma += step;
        channelValues = fromHSY(&hue, &sat, &luma);
    }
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::decreaseLuminosity(quint8 * pixel, qreal step) const {
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    if (profile()->hasTRC()){
        //only linearise and crunch the luma if there's a TRC
        profile()->linearizeFloatValue(channelValues);
        qreal hue, sat, luma = 0.0;
        toHSY(channelValues, &hue, &sat, &luma);
        luma = pow(luma, 1/2.2);
        if (luma-step<0.0) {
            luma=0.0;
        } else {
            luma -= step;
        }
        luma = pow(luma, 2.2);
        channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    } else {
        qreal hue, sat, luma = 0.0;
        toHSY(channelValues, &hue, &sat, &luma);
        if (luma-step<0.0) {
            luma=0.0;
        } else {
            luma -= step;
        }
        channelValues = fromHSY(&hue, &sat, &luma);
    }
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::increaseSaturation(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal hue, sat, luma = 0.0;
    toHSY(channelValues, &hue, &sat, &luma);
    sat += step;
    sat = qBound(0.0, sat, 1.0);
    channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::decreaseSaturation(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal hue, sat, luma = 0.0;
    toHSY(channelValues, &hue, &sat, &luma);
    sat -= step;
    sat = qBound(0.0, sat, 1.0);
    channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::increaseHue(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount()); //doesn't work for cmyka...
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal hue, sat, luma = 0.0;
    toHSY(channelValues, &hue, &sat, &luma);
    if (hue+step>1.0){
        hue=(hue+step)- 1.0;
    } else {
        hue += step;
    }
    channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::decreaseHue(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal hue, sat, luma = 0.0;
    toHSY(channelValues, &hue, &sat, &luma);
    if (hue-step<0.0){
        hue=1.0-(step-hue);
    } else {
        hue -= step;
    }
    channelValues = fromHSY(&hue, &sat, &luma);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}

void KoColorSpace::increaseRed(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal y, u, v = 0.0;
    toYUV(channelValues, &y, &u, &v);
    u += step;
    u = qBound(0.0, u, 1.0);
    channelValues = fromYUV(&y, &u, &v);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::increaseGreen(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal y, u, v = 0.0;
    toYUV(channelValues, &y, &u, &v);
    u -= step;
    u = qBound(0.0, u, 1.0);
    channelValues = fromYUV(&y, &u, &v);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::increaseBlue(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal y, u, v = 0.0;
    toYUV(channelValues, &y, &u, &v);
    v += step;
    v = qBound(0.0, v, 1.0);
    channelValues = fromYUV(&y, &u, &v);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
void KoColorSpace::increaseYellow(quint8 * pixel, qreal step) const{
    int channelnumber = abs(channelCount());
    QVector <double> channelValues(channelnumber);
    QVector <float> channelValuesF(channelnumber);
    normalisedChannelsValue(pixel, channelValuesF);
    for (int i=0;i<channelnumber;i++){
        channelValues[i]=channelValuesF[i];
    }
    profile()->linearizeFloatValue(channelValues);
    qreal y, u, v = 0.0;
    toYUV(channelValues, &y, &u, &v);
    v -= step;
    v = qBound(0.0, v, 1.0);
    channelValues = fromYUV(&y, &u, &v);
    profile()->delinearizeFloatValue(channelValues);
    for (int i=0;i<channelnumber;i++){
        channelValuesF[i]=channelValues[i];
    }
    fromNormalisedChannelsValue(pixel, channelValuesF);
    setOpacity(pixel, 1.0, 1);
}
765
QImage KoColorSpace::convertToQImage(const quint8 *data, qint32 width, qint32 height,
Boudewijn Rempt's avatar
Boudewijn Rempt committed
766
                                     const KoColorProfile *dstProfile,
767
                                     KoColorConversionTransformation::Intent renderingIntent,
768
                                     KoColorConversionTransformation::ConversionFlags conversionFlags) const
769 770 771 772 773 774 775

{
    QImage img = QImage(width, height, QImage::Format_ARGB32);

    const KoColorSpace * dstCS = KoColorSpaceRegistry::instance()->rgb8(dstProfile);

    if (data)
776
        this->convertPixelsTo(const_cast<quint8 *>(data), img.bits(), dstCS, width * height, renderingIntent, conversionFlags);
777 778 779

    return img;
}
780 781 782 783 784

bool KoColorSpace::preferCompositionInSourceColorSpace() const
{
    return false;
}