Gamma-correctness pushed into Skia, top-down.

src/gpu/SkGrPriv.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkGrPriv_DEFINED
 #define SkGrPriv_DEFINED
 
@@ skipping 30 matching lines @@
 
 /** Call this after installing a GrUniqueKey on texture. It will cause the texture's key to be
     removed should the bitmap's contents change or be destroyed. */
 void GrInstallBitmapUniqueKeyInvalidator(const GrUniqueKey& key, SkPixelRef* pixelRef);
 
 /** Converts an SkPaint to a GrPaint for a given GrContext. The matrix is required in order
     to convert the SkShader (if any) on the SkPaint. The primitive itself has no color. */
 bool SkPaintToGrPaint(GrContext*,
                       const SkPaint& skPaint,
                       const SkMatrix& viewM,
+                      bool allowSRGBInputs,
                       GrPaint* grPaint);
 
 /** Same as above but ignores the SkShader (if any) on skPaint. */
 bool SkPaintToGrPaintNoShader(GrContext* context,
                               const SkPaint& skPaint,
+                              bool allowSRGBInputs,
                               GrPaint* grPaint);
 
 /** Replaces the SkShader (if any) on skPaint with the passed in GrFragmentProcessor. The processor
     should expect an unpremul input color and produce a premultiplied output color. There is
     no primitive color. */
 bool SkPaintToGrPaintReplaceShader(GrContext*,
                                    const SkPaint& skPaint,
                                    const GrFragmentProcessor* shaderFP,
+                                   bool allowSRGBInputs,
                                    GrPaint* grPaint);
 
 /** Blends the SkPaint's shader (or color if no shader) with the color which specified via a
     GrBatch's GrPrimitiveProcesssor. Currently there is a bool param to indicate whether the
     primitive color is the dst or src color to the blend in order to work around differences between
     drawVertices and drawAtlas. */
 bool SkPaintToGrPaintWithXfermode(GrContext* context,
                                   const SkPaint& skPaint,
                                   const SkMatrix& viewM,
                                   SkXfermode::Mode primColorMode,
                                   bool primitiveIsSrc,
+                                  bool allowSRGBInputs,
                                   GrPaint* grPaint);
 
 /** This is used when there is a primitive color, but the shader should be ignored. Currently,
     the expectation is that the primitive color will be premultiplied, though it really should be
     unpremultiplied so that interpolation is done in unpremul space. The paint's alpha will be
     applied to the primitive color after interpolation. */
 inline bool SkPaintToGrPaintWithPrimitiveColor(GrContext* context, const SkPaint& skPaint,
-                                               GrPaint* grPaint) {
+                                               bool allowSRGBInputs, GrPaint* grPaint) {
     return SkPaintToGrPaintWithXfermode(context, skPaint, SkMatrix::I(), SkXfermode::kDst_Mode,
-                                        false, grPaint);
+                                        false, allowSRGBInputs, grPaint);
 }
 
 /** This is used when there may or may not be a shader, and the caller wants to plugin a texture
     lookup.  If there is a shader, then its output will only be used if the texture is alpha8. */
 bool SkPaintToGrPaintWithTexture(GrContext* context,
                                  const SkPaint& paint,
                                  const SkMatrix& viewM,
                                  const GrFragmentProcessor* fp,
                                  bool textureIsAlphaOnly,
+                                 bool allowSRGBInputs,
                                  GrPaint* grPaint);
 
 //////////////////////////////////////////////////////////////////////////////
 
 GrSurfaceDesc GrImageInfoToSurfaceDesc(const SkImageInfo&, const GrCaps&);
 
 bool GrPixelConfig2ColorAndProfileType(GrPixelConfig, SkColorType*, SkColorProfileType*);
 
 /**
  *  If the compressed data in the SkData is supported (as a texture format, this returns
@@ skipping 32 matching lines @@
 GR_STATIC_ASSERT((int)kIDC_GrBlendCoeff == (int)SkXfermode::kIDC_Coeff);
 GR_STATIC_ASSERT((int)kSA_GrBlendCoeff == (int)SkXfermode::kSA_Coeff);
 GR_STATIC_ASSERT((int)kISA_GrBlendCoeff == (int)SkXfermode::kISA_Coeff);
 GR_STATIC_ASSERT((int)kDA_GrBlendCoeff == (int)SkXfermode::kDA_Coeff);
 GR_STATIC_ASSERT((int)kIDA_GrBlendCoeff == (int)SkXfermode::kIDA_Coeff);
 GR_STATIC_ASSERT(SkXfermode::kCoeffCount == 10);
 
 #define SkXfermodeCoeffToGrBlendCoeff(X) ((GrBlendCoeff)(X))
 
 #endif