KoColorSpace.cpp 31.7 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

Boudewijn Rempt's avatar
Boudewijn Rempt committed
46
#include <math.h>
47

Stefan Nikolaus's avatar
Stefan Nikolaus committed
48
KoColorSpace::KoColorSpace()
49
        : d(new Private())
Stefan Nikolaus's avatar
Stefan Nikolaus committed
50 51 52
{
}

53 54
KoColorSpace::KoColorSpace(const QString &id, const QString &name, KoMixColorsOp* mixColorsOp, KoConvolutionOp* convolutionOp)
        : d(new Private())
55
{
56
    d->id = id;
57
    d->idNumber = KoUniqueNumberForIdServer::instance()->numberForId(d->id);
58 59 60
    d->name = name;
    d->mixColorsOp = mixColorsOp;
    d->convolutionOp = convolutionOp;
61 62 63 64
    d->transfoToRGBA16 = 0;
    d->transfoFromRGBA16 = 0;
    d->transfoToLABA16 = 0;
    d->transfoFromLABA16 = 0;
65 66 67 68
    d->gamutXYY = QPolygonF();
    d->TRCXYY = QPolygonF();
    d->colorants = QVector <qreal> (0);
    d->lumaCoefficients = QVector <qreal> (0);
69
    d->deletability = NotOwnedByRegistry;
70 71
}

72
KoColorSpace::~KoColorSpace()
73
{
74 75
    Q_ASSERT(d->deletability != OwnedByRegistryDoNotDelete);

76
    qDeleteAll(d->compositeOps);
77
    Q_FOREACH (KoChannelInfo * channel, d->channels) {
Cyrille Berger's avatar
Cyrille Berger committed
78 79
        delete channel;
    }
80 81 82 83 84
    if (d->deletability == NotOwnedByRegistry) {
        KoColorConversionCache* cache = KoColorSpaceRegistry::instance()->colorConversionCache();
        if (cache) {
            cache->colorSpaceIsDestroyed(this);
        }
85
    }
86 87
    delete d->mixColorsOp;
    delete d->convolutionOp;
Cyrille Berger's avatar
Cyrille Berger committed
88 89 90 91
    delete d->transfoToRGBA16;
    delete d->transfoFromRGBA16;
    delete d->transfoToLABA16;
    delete d->transfoFromLABA16;
92 93 94
    delete d;
}

95 96
bool KoColorSpace::operator==(const KoColorSpace& rhs) const
{
97 98
    const KoColorProfile* p1 = rhs.profile();
    const KoColorProfile* p2 = profile();
99
    return d->idNumber == rhs.d->idNumber && ((p1 == p2) || (*p1 == *p2));
100 101
}

102 103 104 105
QString KoColorSpace::id() const
{
    return d->id;
}
106

107 108 109 110
QString KoColorSpace::name() const
{
    return d->name;
}
111

112 113 114 115 116 117 118 119 120 121 122 123 124
//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.
125 126
        QString name = KoColorSpaceRegistry::instance()->colorSpaceFactory("XYZAF32")->defaultProfile();
        const KoColorSpace* xyzColorSpace = KoColorSpaceRegistry::instance()->colorSpace("XYZA", "F32", name);
127
        quint8 *data = new quint8[pixelSize()];
128
        quint8 data2[16]; // xyza f32 is 4 floats, that is 16 bytes per pixel.
129 130
        //QVector <qreal> sampleCoordinates(pow(colorChannelCount(),samples));
        //sampleCoordinates.fill(0.0);
131 132 133 134

        // This is fixed to 5 since the maximum number of channels are 5 for CMYKA
        QVector <float> channelValuesF(5);//for getting the coordinates.

135 136 137 138 139 140
        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());
141
                xyzColorSpace->normalisedChannelsValue(data2, channelValuesF);
142 143
                qreal x = channelValuesF[0]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
                qreal y = channelValuesF[1]/(channelValuesF[0]+channelValuesF[1]+channelValuesF[2]);
144
                d->gamutXYY << QPointF(x,y);
145 146 147 148 149
            } 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++){
150 151 152 153 154
                                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;
155 156
                                fromNormalisedChannelsValue(data, channelValuesF);
                                convertPixelsTo(data, data2, xyzColorSpace, 1, KoColorConversionTransformation::IntentAbsoluteColorimetric, KoColorConversionTransformation::adjustmentConversionFlags());
157 158 159
                                xyzColorSpace->normalisedChannelsValue(data2, channelValuesF);
                                qreal x = channelValuesF[0] / (channelValuesF[0] + channelValuesF[1] + channelValuesF[2]);
                                qreal y = channelValuesF[1] / (channelValuesF[0] + channelValuesF[1] + channelValuesF[2]);
160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180
                                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);
                        }
                    }
                }
                
            }
        }
181
        delete[] data;
182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198
        //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);
199 200 201 202 203 204
        quint8 *data = new quint8[pixelSize()];
        quint8 data2[8]; // xyza is 8 bytes per pixel.

        // This is fixed to 5 since the maximum number of channels are 5 for CMYKA
        QVector <float> channelValuesF(5);//for getting the coordinates.

205
        for (quint32 i=0; i<colorChannelCount(); i++) {
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
            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)));
                }
            }
        }
253 254

        delete[] data;
255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297
        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
298
QList<KoChannelInfo *> KoColorSpace::channels() const
299 300 301 302
{
    return d->channels;
}

Boudewijn Rempt's avatar
Boudewijn Rempt committed
303
QBitArray KoColorSpace::channelFlags(bool color, bool alpha) const
304
{
305
    QBitArray ba(d->channels.size());
Boudewijn Rempt's avatar
Boudewijn Rempt committed
306
    if (!color && !alpha) return ba;
307 308 309 310

    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
311
                (alpha && channel->channelType() == KoChannelInfo::ALPHA))
312
            ba.setBit(i, true);
313 314 315 316
    }
    return ba;
}

317 318 319
void KoColorSpace::addChannel(KoChannelInfo * ci)
{
    d->channels.push_back(ci);
320
}
321 322 323 324 325
bool KoColorSpace::hasCompositeOp(const QString& id) const
{
    return d->compositeOps.contains(id);
}

326
QList<KoCompositeOp*> KoColorSpace::compositeOps() const
327
{
328 329 330
    return d->compositeOps.values();
}

331 332
KoMixColorsOp* KoColorSpace::mixColorsOp() const
{
333 334 335 336
    return d->mixColorsOp;
}


337 338
KoConvolutionOp* KoColorSpace::convolutionOp() const
{
339
    return d->convolutionOp;
340 341
}

Cyrille Berger's avatar
Cyrille Berger committed
342
const KoCompositeOp * KoColorSpace::compositeOp(const QString & id) const
343
{
344 345 346 347
    const QHash<QString, KoCompositeOp*>::ConstIterator it = d->compositeOps.constFind(id);
    if (it != d->compositeOps.constEnd()) {
        return it.value();
    }
348
    else {
Boudewijn Rempt's avatar
Boudewijn Rempt committed
349
        warnPigment << "Asking for non-existent composite operation " << id << ", returning " << COMPOSITE_OVER;
350
        return d->compositeOps.value(COMPOSITE_OVER);
351
    }
352 353 354 355
}

void KoColorSpace::addCompositeOp(const KoCompositeOp * op)
{
356 357
    if (op->colorSpace()->id() == id()) {
        d->compositeOps.insert(op->id(), const_cast<KoCompositeOp*>(op));
358 359 360
    }
}

361
const KoColorConversionTransformation* KoColorSpace::toLabA16Converter() const
362
{
363
    if (!d->transfoToLABA16) {
364
        d->transfoToLABA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, KoColorSpaceRegistry::instance()->lab16(""), KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
365
    }
366
    return d->transfoToLABA16;
367
}
368

369
const KoColorConversionTransformation* KoColorSpace::fromLabA16Converter() const
370
{
371
    if (!d->transfoFromLABA16) {
372
        d->transfoFromLABA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(KoColorSpaceRegistry::instance()->lab16(""), this, KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
373
    }
374
    return d->transfoFromLABA16;
375
}
376
const KoColorConversionTransformation* KoColorSpace::toRgbA16Converter() const
377
{
378
    if (!d->transfoToRGBA16) {
379
        d->transfoToRGBA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, KoColorSpaceRegistry::instance()->rgb16(""), KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
380
    }
381
    return d->transfoToRGBA16;
382
}
383
const KoColorConversionTransformation* KoColorSpace::fromRgbA16Converter() const
384
{
385
    if (!d->transfoFromRGBA16) {
386
        d->transfoFromRGBA16 = KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(KoColorSpaceRegistry::instance()->rgb16("") , this, KoColorConversionTransformation::internalRenderingIntent(), KoColorConversionTransformation::internalConversionFlags()) ;
387
    }
388 389 390 391 392
    return d->transfoFromRGBA16;
}

void KoColorSpace::toLabA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
393
    toLabA16Converter()->transform(src, dst, nPixels);
394 395 396 397
}

void KoColorSpace::fromLabA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
398
    fromLabA16Converter()->transform(src, dst, nPixels);
399 400 401 402
}

void KoColorSpace::toRgbA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
403
    toRgbA16Converter()->transform(src, dst, nPixels);
404 405 406 407
}

void KoColorSpace::fromRgbA16(const quint8 * src, quint8 * dst, quint32 nPixels) const
{
408
    fromRgbA16Converter()->transform(src, dst, nPixels);
409 410
}

411
KoColorConversionTransformation* KoColorSpace::createColorConverter(const KoColorSpace * dstColorSpace, KoColorConversionTransformation::Intent renderingIntent, KoColorConversionTransformation::ConversionFlags conversionFlags) const
412
{
413
    if (*this == *dstColorSpace) {
414
        return new KoCopyColorConversionTransformation(this);
415
    } else {
416
        return KoColorSpaceRegistry::instance()->colorConversionSystem()->createColorConverter(this, dstColorSpace, renderingIntent, conversionFlags);
417
    }
418 419
}

420
bool KoColorSpace::convertPixelsTo(const quint8 * src,
Boudewijn Rempt's avatar
Boudewijn Rempt committed
421 422 423
                                   quint8 * dst,
                                   const KoColorSpace * dstColorSpace,
                                   quint32 numPixels,
424
                                   KoColorConversionTransformation::Intent renderingIntent,
425
                                   KoColorConversionTransformation::ConversionFlags conversionFlags) const
426
{
427
    if (*this == *dstColorSpace) {
428 429 430
        if (src != dst) {
            memcpy(dst, src, numPixels * sizeof(quint8) * pixelSize());
        }
431
    } else {
432
        KoCachedColorConversionTransformation cct = KoColorSpaceRegistry::instance()->colorConversionCache()->cachedConverter(this, dstColorSpace, renderingIntent, conversionFlags);
433 434
        cct.transformation()->transform(src, dst, numPixels);
    }
435 436
    return true;
}
437

438

Boudewijn Rempt's avatar
Boudewijn Rempt committed
439 440 441
void KoColorSpace::bitBlt(const KoColorSpace* srcSpace, const KoCompositeOp::ParameterInfo& params, const KoCompositeOp* op,
                          KoColorConversionTransformation::Intent renderingIntent,
                          KoColorConversionTransformation::ConversionFlags conversionFlags) const
442 443
{
    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());
444

445 446
    if(params.rows <= 0 || params.cols <= 0)
        return;
447

448
    if(!(*this == *srcSpace)) {
449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490
         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);
491 492
        }
    }
493 494 495
    else {
        op->composite(params);
    }
496 497 498
}


499 500 501
QVector<quint8> * KoColorSpace::threadLocalConversionCache(quint32 size) const
{
    QVector<quint8> * ba = 0;
502 503 504 505
    if (!d->conversionCache.hasLocalData()) {
        ba = new QVector<quint8>(size, '0');
        d->conversionCache.setLocalData(ba);
    } else {
506
        ba = d->conversionCache.localData();
507 508
        if ((quint8)ba->size() < size)
            ba->resize(size);
509 510 511
    }
    return ba;
}
512

513
KoColorTransformation* KoColorSpace::createColorTransformation(const QString & id, const QHash<QString, QVariant> & parameters) const
514
{
515 516 517
    KoColorTransformationFactory* factory = KoColorTransformationFactoryRegistry::instance()->get(id);
    if (!factory) return 0;
    QPair<KoID, KoID> model(colorModelId(), colorDepthId());
518
    QList< QPair<KoID, KoID> > models = factory->supportedModels();
519 520
    if (models.isEmpty() || models.contains(model)) {
        return factory->createTransformation(this, parameters);
521 522
    } else {
        // Find the best solution
523
        // TODO use the color conversion cache
524 525 526 527 528 529
        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);
530
        return new KoFallBackColorTransformation(csToFallBack, fallBackToCs, transfo);
531 532
    }
}
533

534
void KoColorSpace::increaseLuminosity(quint8 * pixel, qreal step) const{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
535
    int channelnumber = channelCount();
536 537 538 539 540 541 542 543 544 545 546 547
    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);
548
        luma = qMin(1.0, luma + step);
549 550 551 552 553 554
        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);
555
        luma = qMin(1.0, luma + step);
556 557 558 559 560 561 562 563 564
        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 {
Boudewijn Rempt's avatar
Boudewijn Rempt committed
565
    int channelnumber = channelCount();
566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584
    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);
585
        profile()->delinearizeFloatValue(channelValues);
586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602
    } 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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
603
    int channelnumber = channelCount();
604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
624
    int channelnumber = channelCount();
625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
645
    int channelnumber = channelCount(); //doesn't work for cmyka...
646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
669
    int channelnumber = channelCount();
670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
694
    int channelnumber = channelCount();
695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
715
    int channelnumber = channelCount();
716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
736
    int channelnumber = channelCount();
737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756
    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{
Boudewijn Rempt's avatar
Boudewijn Rempt committed
757
    int channelnumber = channelCount();
758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
    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);
}
777
QImage KoColorSpace::convertToQImage(const quint8 *data, qint32 width, qint32 height,
Boudewijn Rempt's avatar
Boudewijn Rempt committed
778
                                     const KoColorProfile *dstProfile,
779
                                     KoColorConversionTransformation::Intent renderingIntent,
780
                                     KoColorConversionTransformation::ConversionFlags conversionFlags) const
781 782 783 784 785 786 787

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

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

    if (data)
788
        this->convertPixelsTo(const_cast<quint8 *>(data), img.bits(), dstCS, width * height, renderingIntent, conversionFlags);
789 790 791

    return img;
}
792 793 794 795 796

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