Differential D15584 Diff 49562 libs/pigment/compositeops/KoCompositeOpFunctions.h

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libs/pigment/compositeops/KoCompositeOpFunctions.h

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176template<class T> 176​template<class T>
177inline T cfColorDodge(T src, T dst) { 177​inline T cfColorDodge(T src, T dst) {
178 using namespace Arithmetic; 178​ using namespace Arithmetic;
179 179​ //Fixing Color Dodge to avoid ZX Colors on bright area.
180 if(dst == zeroValue<T>()) 180​
181 return zeroValue<T>(); 181​ if(src == unitValue<T>())
182​ return unitValue<T>();
182 183​
183 T invSrc = inv(src); 184​ T invSrc = inv(src);
184 185​
185 if(invSrc < dst) 186​ if(invSrc == zeroValue<T>())
186 return unitValue<T>(); 187​ return unitValue<T>();
187 188​
188 return Arithmetic::clamp<T>(div(dst, invSrc)); 189​ return Arithmetic::clamp<T>(div(dst, invSrc));
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347 // min(max(2 / (1/dst + 1/src), 0), 1) 348​ // min(max(2 / (1/dst + 1/src), 0), 1)
348 composite_type unit = unitValue<T>(); 349​ composite_type unit = unitValue<T>();
349 composite_type s = (src != zeroValue<T>()) ? div<T>(unit, src) : unit; 350​ composite_type s = (src != zeroValue<T>()) ? div<T>(unit, src) : unit;
350 composite_type d = (dst != zeroValue<T>()) ? div<T>(unit, dst) : unit; 351​ composite_type d = (dst != zeroValue<T>()) ? div<T>(unit, dst) : unit;
352​ if (src == zeroValue<T>()) {
353​ return zeroValue<T>();
354​ }
355​
356​ if (dst == zeroValue<T>()) {
357​ return zeroValue<T>();
358​ }
359​
351 return clamp<T>((unit+unit) * unit / (d+s)); 360​ return clamp<T>((unit+unit) * unit / (d+s));
352} 361​}
353 362​
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413 return scale<T>(pow(scale<qreal>(dst), scale<qreal>(src))); 422​ return scale<T>(pow(scale<qreal>(dst), scale<qreal>(src)));
414} 423​}
415 424​
425​template<class T>
426​inline T cfGammaIllumination(T src, T dst) {
427​ using namespace Arithmetic;
428​ return inv(cfGammaDark(inv(src),inv(dst)));
429​}
430​
416template<class T> 431​template<class T>
417inline T cfGeometricMean(T src, T dst) { 432​inline T cfGeometricMean(T src, T dst) {
418 using namespace Arithmetic; 433​ using namespace Arithmetic;
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457inline T cfGlow(T src, T dst) { 472​inline T cfGlow(T src, T dst) {
458 using namespace Arithmetic; 473​ using namespace Arithmetic;
459 // see http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm for formulas of Quadratic Blending Modes like Glow, Reflect, Freeze, and Heat 474​ // see http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm for formulas of Quadratic Blending Modes like Glow, Reflect, Freeze, and Heat
475​
476​ if (dst == unitValue<T>()) {
477​ return unitValue<T>();
478​ }
479​
480​ return clamp<T>(div(mul(src, src), inv(dst)));
481​}
482​
483​template<class T>
484​inline T cfReflect(T src, T dst) {
485​ using namespace Arithmetic;
460 486​
461 if(dst == unitValue<T>()) { 487​
488​ return clamp<T>(cfGlow(dst,src));
489​}
490​
491​template<class T>
492​inline T cfHeat(T src, T dst) {
493​ using namespace Arithmetic;
494​
495​ if(src == unitValue<T>()) {
462 return unitValue<T>(); 496​ return unitValue<T>();
463 } 497​ }
464 498​
465 if(src == zeroValue<T>()) { 499​ if(dst == zeroValue<T>()) {
466 return zeroValue<T>(); 500​ return zeroValue<T>();
467 } 501​ }
502​
503​ return inv(clamp<T>(div(mul(inv(src), inv(src)),dst)));
504​}
505​
506​template<class T>
507​inline T cfFreeze(T src, T dst) {
508​ using namespace Arithmetic;
468 509​
469 return clamp<T>(div(mul(src, src), inv(dst))); 510​ return (cfHeat(dst,src));
470} 511​}
512​
513​template<class T>
514​inline T cfHelow(T src, T dst) {
515​ using namespace Arithmetic;
516​ // see http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm for formulas of Quadratic Blending Modes like Glow, Reflect, Freeze, and Heat
517​
518​ if (cfHardMixPhotoshop(src,dst) == unitValue<T>()) {
519​ return cfHeat(src,dst);
520​ }
471 521​
522​ if (src == zeroValue<T>()) {
523​ return zeroValue<T>();
524​ }
525​
526​ return (cfGlow(src,dst));
527​}
528​
472template<class T> 529​template<class T>
473inline T cfReflect(T src, T dst) { 530​inline T cfFrect(T src, T dst) {
531​ using namespace Arithmetic;
532​
533​ if (cfHardMixPhotoshop(src,dst) == unitValue<T>()) {
534​ return cfFreeze(src,dst);
535​ }
536​
537​ if (dst == zeroValue<T>()) {
538​ return zeroValue<T>();
539​ }
540​
541​ return (cfReflect(src,dst));
542​}
543​
544​template<class T>
545​inline T cfGleat(T src, T dst) {
474 using namespace Arithmetic; 546​ using namespace Arithmetic;
547​ // see http://www.pegtop.net/delphi/articles/blendmodes/quadratic.htm for formulas of Quadratic Blending Modes like Glow, Reflect, Freeze, and Heat
475 548​
476 return (cfGlow(dst,src)); 549​ if(dst == unitValue<T>()) {
550​ return unitValue<T>();
551​ }
552​
553​ if(cfHardMixPhotoshop(src,dst) == unitValue<T>()) {
554​ return cfGlow(src,dst);
555​ }
556​
557​ return (cfHeat(src,dst));
477} 558​}
478 559​
479template<class T> 560​template<class T>
480inline T cfHeat(T src, T dst) { 561​inline T cfReeze(T src, T dst) {
481 using namespace Arithmetic; 562​ using namespace Arithmetic;
482 // Heat, and Freeze only works properly on 8-bit images. It does not work properly on any other color depth. For now, if Heat and Freeze are proven useful for 8-bit painting, then there should be some way of solving this issue. ​
483 563​
484 if(dst == zeroValue<T>()) { 564​ return (cfGleat(dst,src));
565​}
566​template<class T>
567​inline T cfFhyrd(T src, T dst) {
568​ using namespace Arithmetic;
569​
570​ return (cfAllanon(cfFrect(src,dst),cfHelow(src,dst)));
571​}
572​
573​template<class T>
574​inline T cfInterpolation(T src, T dst) {
575​ using namespace Arithmetic;
576​
577​ qreal fsrc = scale<qreal>(src);
578​ qreal fdst = scale<qreal>(dst);
579​
580​ if(dst == zeroValue<T>() && src == zeroValue<T>()) {
581​ return zeroValue<T>();
582​ }
583​
584​ return scale<T>(.5f-.25f*cos(pi*(fsrc))-.25f*cos(pi*(fdst)));
585​}
586​
587​template<class T>
588​inline T cfInterpolationB(T src, T dst) {
589​ using namespace Arithmetic;
590​
591​ return cfInterpolation(cfInterpolation(src,dst),cfInterpolation(src,dst));
592​}
593​
594​
595​template<class T>
596​inline T cfPenumbraB(T src, T dst) {
597​ using namespace Arithmetic;
598​
599​ if (dst == unitValue<T>()) {
600​ return unitValue<T>();
601​ }
602​ if (dst + src < unitValue<T>()) {
603​ return (cfColorDodge(dst,src)/2);
604​ }
605​ if (src == zeroValue<T>()) {
485 return zeroValue<T>(); 606​ return zeroValue<T>();
486 } 607​ }
608​
609​ return inv(clamp<T>(div(inv(dst),src)/2));
610​}
611​
612​template<class T>
613​inline T cfPenumbraD(T src, T dst) {
614​ using namespace Arithmetic;
487 615​
488 if(src == unitValue<T>()) { 616​ if (dst == unitValue<T>()) {
489 return unitValue<T>(); 617​ return unitValue<T>();
490 } 618​ }
491 619​
492 return inv(clamp<T>(div(mul(inv(src), inv(src)),dst))); 620​ return cfArcTangent(src,inv(dst));
493} 621​}
494 622​
495template<class T> 623​template<class T>
496inline T cfFreeze(T src, T dst) { 624​inline T cfPenumbraC(T src, T dst) {
625​ using namespace Arithmetic;
626​
627​ return cfPenumbraD(dst,src);
628​}
629​
630​template<class T>
631​inline T cfPenumbraA(T src, T dst) {
632​ using namespace Arithmetic;
633​
634​ return (cfPenumbraB(dst,src));
635​}
636​
637​template<class T>
638​inline T cfSoftLightIFSIllusions(T src, T dst) {
639​ using namespace Arithmetic;
640​
641​ qreal fsrc = scale<qreal>(src);
642​ qreal fdst = scale<qreal>(dst);
643​
644​ return scale<T>(pow(fdst,pow(2.0,(mul(2.0,.5f-fsrc)))));
645​}
646​
647​template<class T>
648​inline T cfSoftLightPegtopDelphi(T src, T dst) {
649​ using namespace Arithmetic;
650​
651​ return clamp<T>(cfAddition(mul(dst,cfScreen(src,dst)),mul(mul(src,dst),inv(dst))));
652​}
653​
654​template<class T>
655​inline T cfNegation(T src, T dst) {
656​ using namespace Arithmetic;
657​ typedef typename KoColorSpaceMathsTraits<T>::compositetype composite_type;
658​
659​ composite_type unit = unitValue<T>();
660​ composite_type a = unit - src - dst;
661​ composite_type s = abs(a);
662​ composite_type d = unit - s;
663​
664​ return T(d);
665​}
666​
667​template<class T>
668​inline T cfNor(T src, T dst) {
669​ using namespace Arithmetic;
670​
671​ return and(src,dst);
672​}
673​
674​template<class T>
675​inline T cfNand(T src, T dst) {
676​ using namespace Arithmetic;
677​
678​ return or(src,dst);
679​}
680​
681​template<class T>
682​inline T cfXor(T src, T dst) {
683​ using namespace Arithmetic;
684​
685​ return xor(src,dst);
686​}
687​
688​template<class T>
689​inline T cfXnor(T src, T dst) {
690​ using namespace Arithmetic;
691​
692​ return cfXor(src,inv(dst));
693​}
694​
695​template<class T>
696​inline T cfAnd(T src, T dst) {
497 using namespace Arithmetic; 697​ using namespace Arithmetic;
698​
699​ return cfNor(inv(src),inv(dst));
700​}
701​
702​template<class T>
703​inline T cfOr(T src, T dst) {
704​ using namespace Arithmetic;
705​
706​ return cfNand(inv(src),inv(dst));
707​}
708​
709​template<class T>
710​inline T cfConverse(T src, T dst) {
711​ using namespace Arithmetic;
712​
713​ return cfOr(inv(src),dst);
714​}
715​
716​template<class T>
717​inline T cfNotConverse(T src, T dst) {
718​ using namespace Arithmetic;
719​
720​ return cfAnd(src,inv(dst));
721​}
722​
723​template<class T>
724​inline T cfImplies(T src, T dst) {
725​ using namespace Arithmetic;
726​
727​ return cfOr(src,inv(dst));
728​}
729​
730​template<class T>
731​inline T cfNotImplies(T src, T dst) {
732​ using namespace Arithmetic;
733​
734​ return cfAnd(inv(src),dst);
735​}
736​
737​template<class T>
738​inline T cfPNormA(T src, T dst) {
739​ using namespace Arithmetic;
740​ //This is also known as P-Norm mode with factor of 2.3333 See IMBLEND image blending mode samples, and please see imblend.m file found on Additional Blending Mode thread at Phabricator. 1/2.3333 is .42875...
498 741​
499 return clamp<T>(cfHeat(dst,src)); 742​ return clamp<T>(pow(pow(dst,2.3333333333333333)+pow(src,2.3333333333333333),0.428571428571434));
500} 743​}
501 744​
745​template<class T>
746​inline T cfPNormB(T src, T dst) {
747​ using namespace Arithmetic;
748​ //This is also known as P-Norm mode with factor of 2.3333 See IMBLEND image blending mode samples, and please see imblend.m file found on Additional Blending Mode thread at Phabricator. 1/2.3333 is .42875...
749​
750​ return clamp<T>(pow(pow(dst,4)+pow(src,4),0.25));
751​}
502 752​
753​template<class T>
754​inline T cfSuperLight(T src, T dst) {
755​ using namespace Arithmetic;
756​ //4.0 can be adjusted to taste. 4.0 is picked for being the best in terms of contrast and details. See imblend.m file.
757​
758​ qreal fsrc = scale<qreal>(src);
759​ qreal fdst = scale<qreal>(dst);
760​
761​ if (fsrc < .5) {
762​ return scale<T>(inv(pow(pow(inv(fdst),2.875)+pow(inv(2.0*fsrc),2.875),1.0/2.875)));
763​ }
764​
765​ return scale<T>(pow(pow(fdst,2.875)+pow(2.0*fsrc-1.0,2.875),1.0/2.875));
766​}
767​
768​template<class T>
769​inline T cfTintIFSIllusions(T src, T dst) {
770​ using namespace Arithmetic;
771​ //Known as Light Blending mode found in IFS Illusions. Picked this name because it results into a very strong tint, and has better naming convention.
772​
773​ qreal fsrc = scale<qreal>(src);
774​ qreal fdst = scale<qreal>(dst);
775​
776​ return scale<T>(fsrc*inv(fdst)+sqrt(fdst));
777​}
778​
779​template<class T>
780​inline T cfShadeIFSIllusions(T src, T dst) {
781​ using namespace Arithmetic;
782​ //Known as Shadow Blending mode found in IFS Illusions. Picked this name because it is the opposite of Tint (IFS Illusion Blending mode).
783​
784​ qreal fsrc = scale<qreal>(src);
785​ qreal fdst = scale<qreal>(dst);
786​
787​ return scale<T>(inv((inv(fdst)*fsrc)+sqrt(inv(fsrc))));
788​}
789​
790​template<class T>
791​inline T cfFogLightenIFSIllusions(T src, T dst) {
792​ using namespace Arithmetic;
793​ //Known as Bright Blending mode found in IFS Illusions. Picked this name because the shading reminds me of fog when overlaying with a gradientt.
794​
795​ qreal fsrc = scale<qreal>(src);
796​ qreal fdst = scale<qreal>(dst);
797​
798​ if (fsrc < .5) {
799​ return scale<T>(inv(inv(fsrc)*fsrc)-inv(fdst)*inv(fsrc));
800​ }
801​
802​ return scale<T>(fsrc-inv(fdst)*inv(fsrc)+pow(inv(fsrc),2));
803​}
804​
805​template<class T>
806​inline T cfFogDarkenIFSIllusions(T src, T dst) {
807​ using namespace Arithmetic;
808​ //Known as Dark Blending mode found in IFS Illusions. Picked this name because the shading reminds me of fog when overlaying with a gradient.
809​
810​ qreal fsrc = scale<qreal>(src);
811​ qreal fdst = scale<qreal>(dst);
812​
813​ if (fsrc < .5) {
814​ return scale<T>(inv(fsrc)*fsrc+fsrc*fdst);
815​ }
816​
817​ return scale<T>(fsrc*fdst+fsrc-pow(fsrc,2));
818​}
819​
820​template<class T>
821​inline T cfModulo(T src, T dst) {
822​ using namespace Arithmetic;
823​
824​ return mod(dst,src);
825​}
826​
827​template<class T>
828​inline T cfModuloShift(T src, T dst) {
829​ using namespace Arithmetic;
830​ qreal fsrc = scale<qreal>(src);
831​ qreal fdst = scale<qreal>(dst);
832​
833​ if (fsrc == 1.0 && fdst == 0.0) {
834​ return scale<T>(0.0);
835​ }
836​
837​
838​ return scale<T>(mod((fdst+fsrc),1.0000000000));
839​}
840​
841​template<class T>
842​inline T cfModuloShiftContinuous(T src, T dst) {
843​ using namespace Arithmetic;
844​ //This blending mode do not behave like difference/equilavent with destination layer inverted if you use group layer on addition while the content of group layer contains several addition-mode layers, it works as expected on float images. So, no need to change this.
845​ qreal fsrc = scale<qreal>(src);
846​ qreal fdst = scale<qreal>(dst);
847​
848​ if (fsrc == 1.0 && fdst == 0.0) {
849​ return scale<T>(0.0);
850​ }
851​
852​ return scale<T>((int(ceil(fdst+fsrc)) % 2 != 0) || (fdst == zeroValue<T>()) ? inv(cfModuloShift(fsrc,fdst)) : cfModuloShift(fsrc,fdst));
853​}
854​
855​template<class T>
856​inline T cfDivisiveModulo(T src, T dst) {
857​ using namespace Arithmetic;
858​ //I have to use 1.00000 as unitValue failed to work for those area.
859​
860​ qreal fsrc = scale<qreal>(src);
861​ qreal fdst = scale<qreal>(dst);
862​
863​ if (fsrc == zeroValue<T>()) {
864​ return scale<T>(mod(((1.0000000000/epsilon<T>()) * fdst),1.0000000000));
865​ }
866​
867​ return scale<T>(mod(((1.0000000000/fsrc) * fdst),1.0000000000));
868​}
869​
870​template<class T>
871​inline T cfDivisiveModuloContinuous(T src, T dst) {
872​ using namespace Arithmetic;
873​
874​ qreal fsrc = scale<qreal>(src);
875​ qreal fdst = scale<qreal>(dst);
876​
877​ if (fdst == zeroValue<T>()) {
878​ return zeroValue<T>();
879​ }
880​
881​ if (fsrc == zeroValue<T>()) {
882​ return cfDivisiveModulo(fsrc,fdst);
883​ }
884​
885​
886​ return scale<T>( int(ceil(fdst/fsrc)) % 2 != 0 ? cfDivisiveModulo(fsrc,fdst) : inv(cfDivisiveModulo(fsrc,fdst)));
887​}
888​
889​template<class T>
890​inline T cfModuloContinuous(T src, T dst) {
891​ using namespace Arithmetic;
892​
893​ return cfMultiply(cfDivisiveModuloContinuous(src,dst),src);
894​}
895​
896​template<class T>
897​inline T cfColorBurnLogarithmic(T src, T dst) {
898​ using namespace Arithmetic;
899​ //Also known as Darken from EffectBank/Illusions.hu. IFS Illusions had used this blending mode.
900​
901​ qreal fsrc = scale<qreal>(src);
902​ qreal fdst = scale<qreal>(dst);
903​
904​ if (inv(fdst) == zeroValue<T>()) {
905​ return scale<T>(log2(1.0 + abs(fsrc)/abs(inv(.999999))/8));
906​ }
907​
908​ return scale<T>(log2(1.0 + abs(fsrc)/abs(inv(fdst))/8));
909​}
910​
911​template<class T>
912​inline T cfColorDodgeLogarithmic(T src, T dst) {
913​ using namespace Arithmetic;
914​ //Also known as Lighten from EffectBank/Illusions.hu. IFS Illusions had used this blending mode.
915​
916​ return inv(cfColorBurnLogarithmic(inv(src),inv(dst)));
917​}
918​
919​template<class T>
920​inline T cfEasyDodge(T src, T dst) {
921​ using namespace Arithmetic;
922​ // The 13 divided by 15 can be adjusted to taste. See imgblend.m
923​
924​ qreal fsrc = scale<qreal>(src);
925​ qreal fdst = scale<qreal>(dst);
926​
927​
928​ return scale<T>(pow(fdst,mul(inv(fsrc != 1.0 ? fsrc : .999999999999),1.039999999)));
929​}
930​
931​template<class T>
932​inline T cfEasyBurn(T src, T dst) {
933​ using namespace Arithmetic;
934​ // The 13 divided by 15 can be adjusted to taste. See imgblend.m
935​
936​ qreal fsrc = scale<qreal>(src);
937​ qreal fdst = scale<qreal>(dst);
938​
939​
940​ return scale<T>(inv(pow(inv(fsrc != 1.0 ? fsrc : .999999999999),mul(fdst,1.039999999))));
941​}
942​
943​template<class T>
944​inline T cfFlatLight(T src, T dst) {
945​ using namespace Arithmetic;
946​
947​ if (src == zeroValue<T>()) {
948​ return zeroValue<T>();
949​ }
950​
951​ return clamp<T>(cfHardMixPhotoshop(inv(src),dst)==unitValue<T>() ? cfPenumbraB(src,dst) : cfPenumbraA(src,dst));
952​}
503#endif // KOCOMPOSITEOP_FUNCTIONS_H_ 953​#endif // KOCOMPOSITEOP_FUNCTIONS_H_
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