Implement stroking a path with nv_path_rendering

src/gpu/GrGpu.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 GrGpu_DEFINED
 #define GrGpu_DEFINED
 
@@ skipping 106 matching lines @@
      *                GrIndexBuffer::updateData.
      *
      * @return The index buffer if successful, otherwise NULL.
      */
     GrIndexBuffer* createIndexBuffer(uint32_t size, bool dynamic);
 
     /**
      * Creates a path object that can be stenciled using stencilPath(). It is
      * only legal to call this if the caps report support for path stenciling.
      */
-    GrPath* createPath(const SkPath& path);
+    GrPath* createPath(const SkPath& path, const SkStrokeRec& stroke);
 
     /**
      * Returns an index buffer that can be used to render quads.
      * Six indices per quad: 0, 1, 2, 0, 2, 3, etc.
      * The max number of quads can be queried using GrIndexBuffer::maxQuads().
      * Draw with kTriangles_GrPrimitiveType
      * @ return the quad index buffer
      */
     const GrIndexBuffer* getQuadIndexBuffer() const;
 
@@ skipping 203 matching lines @@
 
     // overridden by backend-specific derived class to perform the path stenciling.
     virtual const GrStencilSettings& getPathStencilSettingsForFillType(SkPath::FillType) = 0;
 
 protected:
     enum DrawType {
         kDrawPoints_DrawType,
         kDrawLines_DrawType,
         kDrawTriangles_DrawType,
         kStencilPath_DrawType,
-        kFillPath_DrawType,
+        kDrawPath_DrawType,
     };
 
     DrawType PrimTypeToDrawType(GrPrimitiveType type) {
         switch (type) {
             case kTriangles_GrPrimitiveType:
             case kTriangleStrip_GrPrimitiveType:
             case kTriangleFan_GrPrimitiveType:
                 return kDrawTriangles_DrawType;
             case kPoints_GrPrimitiveType:
                 return kDrawPoints_DrawType;
@@ skipping 73 matching lines @@
     virtual void onResetContext(uint32_t resetBits) = 0;
 
     // overridden by backend-specific derived class to create objects.
     virtual GrTexture* onCreateTexture(const GrTextureDesc& desc,
                                        const void* srcData,
                                        size_t rowBytes) = 0;
     virtual GrTexture* onWrapBackendTexture(const GrBackendTextureDesc&) = 0;
     virtual GrRenderTarget* onWrapBackendRenderTarget(const GrBackendRenderTargetDesc&) = 0;
     virtual GrVertexBuffer* onCreateVertexBuffer(uint32_t size, bool dynamic) = 0;
     virtual GrIndexBuffer* onCreateIndexBuffer(uint32_t size, bool dynamic) = 0;
-    virtual GrPath* onCreatePath(const SkPath& path) = 0;
+    virtual GrPath* onCreatePath(const SkPath& path, const SkStrokeRec& stroke) = 0;
 
     // overridden by backend-specific derived class to perform the clear and
     // clearRect. NULL rect means clear whole target.
     virtual void onClear(const SkIRect* rect, GrColor color) = 0;
 
     // overridden by backend-specific derived class to perform the draw call.
     virtual void onGpuDraw(const DrawInfo&) = 0;
 
     // overridden by backend-specific derived class to perform the path stenciling.
     virtual void onGpuStencilPath(const GrPath*, SkPath::FillType) = 0;
-    virtual void onGpuFillPath(const GrPath*, SkPath::FillType) = 0;
+    virtual void onGpuDrawPath(const GrPath*, const SkStrokeRec& stroke, SkPath::FillType) = 0;
 
     // overridden by backend-specific derived class to perform flush
     virtual void onForceRenderTargetFlush() = 0;
 
     // overridden by backend-specific derived class to perform the read pixels.
     virtual bool onReadPixels(GrRenderTarget* target,
                               int left, int top, int width, int height,
                               GrPixelConfig,
                               void* buffer,
                               size_t rowBytes) = 0;
@@ skipping 25 matching lines @@
     virtual void clearStencil() = 0;
 
     // Given a rt, find or create a stencil buffer and attach it
     bool attachStencilBufferToRenderTarget(GrRenderTarget* target);
 
     // GrDrawTarget overrides
     virtual void onDraw(const DrawInfo&) SK_OVERRIDE;
     virtual void onStencilPath(const GrPath* path, const SkStrokeRec& stroke,
                                SkPath::FillType) SK_OVERRIDE;
 
-    virtual void onFillPath(const GrPath* path, const SkStrokeRec& stroke,
+    virtual void onDrawPath(const GrPath* path, const SkStrokeRec& stroke,
                                SkPath::FillType) SK_OVERRIDE;
 
     // readies the pools to provide vertex/index data.
     void prepareVertexPool();
     void prepareIndexPool();
 
     void resetContext() {
         // We call this because the client may have messed with the
         // stencil buffer. Perhaps we should detect whether it is a
         // internally created stencil buffer and if so skip the invalidate.
@@ skipping 24 matching lines @@
     // these are mutable so they can be created on-demand
     mutable GrIndexBuffer*                                              fQuadIndexBuffer;
     // Used to abandon/release all resources created by this GrGpu. TODO: Move this
     // functionality to GrResourceCache.
     ResourceList                                                        fResourceList;
 
     typedef GrDrawTarget INHERITED;
 };
 
 #endif