Screenspace AA tessellated path rendering.

src/gpu/GrDefaultGeoProcFactory.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDefaultGeoProcFactory_DEFINED
 #define GrDefaultGeoProcFactory_DEFINED
 
@@ skipping 17 matching lines @@
     };
 
     struct PositionColorAttr {
         SkPoint fPosition;
         SkColor fColor;
     };
 
     struct PositionColorCoverageAttr {
         SkPoint fPosition;
         SkColor fColor;
-        GrColor fCoverage;
+        float   fCoverage;
     };
 
     struct PositionLocalCoordAttr {
         SkPoint fPosition;
         SkPoint fLocalCoord;
     };
 
     struct PositionLocalCoordCoverageAttr {
         SkPoint fPosition;
         SkPoint fLocalCoord;
@@ skipping 78 matching lines @@
      */
     sk_sp<GrGeometryProcessor> MakeForDeviceSpace(const Color&,
                                                   const Coverage&,
                                                   const LocalCoords&,
                                                   const SkMatrix& viewMatrix);
 
     inline size_t DefaultVertexStride() { return sizeof(PositionAttr); }
 };
 
 #endif