Gamut transformation of the paint color in Ganesh

src/gpu/SkGr.cpp

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkGr.h"
 #include "SkGrPriv.h"
@@ skipping 519 matching lines @@
     grPaint->setAllowSRGBInputs(dc->isGammaCorrect());
 
     // Raw translation of the SkPaint color to our 4f format:
     GrColor4f origColor = GrColor4f::FromGrColor(SkColorToUnpremulGrColor(skPaint.getColor()));
 
     // Linearize, if the color is meant to be in sRGB gamma:
     if (dc->isGammaCorrect()) {
         origColor.fRGBA[0] = exact_srgb_to_linear(origColor.fRGBA[0]);
         origColor.fRGBA[1] = exact_srgb_to_linear(origColor.fRGBA[1]);
         origColor.fRGBA[2] = exact_srgb_to_linear(origColor.fRGBA[2]);
+
+        if (dc->getColorXformFromSRGB()) {
+            origColor = dc->getColorXformFromSRGB()->apply(origColor);
+        }
     }
 
     // Setup the initial color considering the shader, the SkPaint color, and the presence or not
     // of per-vertex colors.
     sk_sp<GrFragmentProcessor> shaderFP;
     if (!primColorMode || blend_requires_shader(*primColorMode, primitiveIsSrc)) {
         if (shaderProcessor) {
             shaderFP = *shaderProcessor;
         } else if (const SkShader* shader = skPaint.getShader()) {
             shaderFP = shader->asFragmentProcessor(SkShader::AsFPArgs(context, &viewM, nullptr,
@@ skipping 220 matching lines @@
             SkErrorInternals::SetError( kInvalidPaint_SkError,
                                         "Sorry, I don't understand the filtering "
                                         "mode you asked for.  Falling back to "
                                         "MIPMaps.");
             textureFilterMode = GrTextureParams::kMipMap_FilterMode;
             break;
 
     }
     return textureFilterMode;
 }