Introduce GrColorSpaceXform, for gamut conversion on textures

src/gpu/effects/GrTextureDomain.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTextureDomain.h"
 #include "GrInvariantOutput.h"
 #include "GrSimpleTextureEffect.h"
@@ skipping 201 matching lines @@
 void GrGLTextureDomainEffect::GenKey(const GrProcessor& processor, const GrGLSLCaps&,
                                      GrProcessorKeyBuilder* b) {
     const GrTextureDomain& domain = processor.cast<GrTextureDomainEffect>().textureDomain();
     b->add32(GrTextureDomain::GLDomain::DomainKey(domain));
 }
 
 
 ///////////////////////////////////////////////////////////////////////////////
 
 sk_sp<GrFragmentProcessor> GrTextureDomainEffect::Make(GrTexture* texture,
+                                                       sk_sp<GrColorSpaceXform> colorSpaceXform,
                                                        const SkMatrix& matrix,
                                                        const SkRect& domain,
                                                        GrTextureDomain::Mode mode,
                                                        GrTextureParams::FilterMode filterMode,
                                                        GrCoordSet coordSet) {
     static const SkRect kFullRect = {0, 0, SK_Scalar1, SK_Scalar1};
     if (GrTextureDomain::kIgnore_Mode == mode ||
         (GrTextureDomain::kClamp_Mode == mode && domain.contains(kFullRect))) {
-        return GrSimpleTextureEffect::Make(texture, matrix, filterMode);
+        return GrSimpleTextureEffect::Make(texture, std::move(colorSpaceXform), matrix, filterMode);
     } else {
         return sk_sp<GrFragmentProcessor>(
-            new GrTextureDomainEffect(texture, matrix, domain, mode, filterMode, coordSet));
+            new GrTextureDomainEffect(texture, std::move(colorSpaceXform), matrix, domain, mode,
+                                      filterMode, coordSet));
     }
 }
 
 GrTextureDomainEffect::GrTextureDomainEffect(GrTexture* texture,
+                                             sk_sp<GrColorSpaceXform> colorSpaceXform,
                                              const SkMatrix& matrix,
                                              const SkRect& domain,
                                              GrTextureDomain::Mode mode,
                                              GrTextureParams::FilterMode filterMode,
                                              GrCoordSet coordSet)
-    : GrSingleTextureEffect(texture, matrix, filterMode, coordSet)
+    : GrSingleTextureEffect(texture, std::move(colorSpaceXform), matrix, filterMode, coordSet)
     , fTextureDomain(domain, mode) {
     SkASSERT(mode != GrTextureDomain::kRepeat_Mode ||
             filterMode == GrTextureParams::kNone_FilterMode);
     this->initClassID<GrTextureDomainEffect>();
 }
 
 GrTextureDomainEffect::~GrTextureDomainEffect() {}
 
 void GrTextureDomainEffect::onGetGLSLProcessorKey(const GrGLSLCaps& caps,
                                                   GrProcessorKeyBuilder* b) const {
@@ skipping 33 matching lines @@
     domain.fRight = d->fRandom->nextRangeScalar(domain.fLeft, SK_Scalar1);
     domain.fTop = d->fRandom->nextUScalar1();
     domain.fBottom = d->fRandom->nextRangeScalar(domain.fTop, SK_Scalar1);
     GrTextureDomain::Mode mode =
         (GrTextureDomain::Mode) d->fRandom->nextULessThan(GrTextureDomain::kModeCount);
     const SkMatrix& matrix = GrTest::TestMatrix(d->fRandom);
     bool bilerp = mode != GrTextureDomain::kRepeat_Mode ? d->fRandom->nextBool() : false;
     GrCoordSet coords = d->fRandom->nextBool() ? kLocal_GrCoordSet : kDevice_GrCoordSet;
     return GrTextureDomainEffect::Make(
         d->fTextures[texIdx],
+        nullptr,
         matrix,
         domain,
         mode,
         bilerp ? GrTextureParams::kBilerp_FilterMode : GrTextureParams::kNone_FilterMode,
         coords);
 }