Implement path cover with nv_path_rendering

src/gpu/gl/GrGpuGL.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 GrGpuGL_DEFINED
 #define GrGpuGL_DEFINED
 
@@ skipping 127 matching lines @@
 
     virtual bool onWriteTexturePixels(GrTexture* texture,
                                       int left, int top, int width, int height,
                                       GrPixelConfig config, const void* buffer,
                                       size_t rowBytes) SK_OVERRIDE;
 
     virtual void onResolveRenderTarget(GrRenderTarget* target) SK_OVERRIDE;
 
     virtual void onGpuDraw(const DrawInfo&) SK_OVERRIDE;
 
-    virtual void setStencilPathSettings(const GrPath&,
-                                        SkPath::FillType,
-                                        GrStencilSettings* settings)
-                                        SK_OVERRIDE;
+
+    const GrStencilSettings& getStencilPathSettings(const GrPath&, SkPath::FillType fill) SK_OVERRIDE;
     virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) SK_OVERRIDE;
+    virtual void onGpuDrawPath(const GrPath*, SkPath::FillType) SK_OVERRIDE;
 
     virtual void clearStencil() SK_OVERRIDE;
     virtual void clearStencilClip(const SkIRect& rect,
                                   bool insideClip) SK_OVERRIDE;
     virtual bool flushGraphicsState(DrawType, const GrDeviceCoordTexture* dstCopy) SK_OVERRIDE;
 
     // binds texture unit in GL
     void setTextureUnit(int unitIdx);
 
     // Sets up vertex attribute pointers and strides. On return indexOffsetInBytes gives the offset
@@ skipping 257 matching lines @@
         void invalidate() {
             fMSAAEnabled = kUnknown_TriState;
             fSmoothLineEnabled = kUnknown_TriState;
         }
     } fHWAAState;
 
 
     GrGLProgram::MatrixState    fHWProjectionMatrixState;
 
     GrStencilSettings           fHWStencilSettings;
+    GrStencilSettings           fHWStencilPathSettings;
     TriState                    fHWStencilTestEnabled;
 
     GrDrawState::DrawFace       fHWDrawFace;
     TriState                    fHWWriteToColor;
     TriState                    fHWDitherEnabled;
     GrRenderTarget*             fHWBoundRenderTarget;
     SkTArray<GrTexture*, true>  fHWBoundTextures;
 
     struct TexGenData {
         GrGLenum  fMode;
         GrGLint   fNumComponents;
         GrGLfloat fCoefficients[6];
     };
     int                         fHWActiveTexGenUnits;
     SkTArray<TexGenData, true>  fHWTexGenSettings;
     ///@}
 
     // we record what stencil format worked last time to hopefully exit early
     // from our loop that tries stencil formats and calls check fb status.
     int fLastSuccessfulStencilFmtIdx;
 
     typedef GrGpu INHERITED;
 };
 
 #endif