Tweak distance field path renderer behavior in gamma-correct mode

include/gpu/GrPaint.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrPaint_DEFINED
@@ skipping 53 matching lines @@
     bool getDisableOutputConversionToSRGB() const { return fDisableOutputConversionToSRGB; }
 
     /**
      * Should sRGB inputs be allowed to perform sRGB to linear conversion. With this flag
      * set to false, sRGB textures will be treated as linear (including filtering).
      */
     void setAllowSRGBInputs(bool allowSRGBInputs) { fAllowSRGBInputs = allowSRGBInputs; }
     bool getAllowSRGBInputs() const { return fAllowSRGBInputs; }
 
     /**
-     * Should rendering be gamma-correct. Causes sRGB inputs to perform conversion to linear,
-     * and outputs to be converted from linear to sRGB (if the destination is sRGB).
+     * Should rendering be gamma-correct, end-to-end. Causes sRGB render targets to behave
+     * as such (with linear blending), and sRGB inputs to be filtered and decoded correctly.
      */
     void setGammaCorrect(bool gammaCorrect) {
         setDisableOutputConversionToSRGB(!gammaCorrect);
         setAllowSRGBInputs(gammaCorrect);
     }
 
     const GrXPFactory* setXPFactory(const GrXPFactory* xpFactory) {
         fXPFactory.reset(SkSafeRef(xpFactory));
         return xpFactory;
     }
@@ skipping 93 matching lines @@
     SkSTArray<2, const GrFragmentProcessor*, true>  fCoverageFragmentProcessors;
 
     bool                                            fAntiAlias;
     bool                                            fDisableOutputConversionToSRGB;
     bool                                            fAllowSRGBInputs;
 
     GrColor                                         fColor;
 };
 
 #endif