Extract gpu line dashing to GrDashLinePathRenderer

src/gpu/GrDashLinePathRenderer.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 GrTessellatingPathRenderer_DEFINED
-#define GrTessellatingPathRenderer_DEFINED
+#ifndef GrDashLinePathRenderer_DEFINED
+#define GrDashLinePathRenderer_DEFINED
 
 #include "GrPathRenderer.h"
 
-/**
- *  Subclass that renders the path by converting to screen-space trapezoids plus
- *   extra 1-pixel geometry for AA.
- */
-class SK_API GrTessellatingPathRenderer : public GrPathRenderer {
+class GrDashLinePathRenderer : public GrPathRenderer {
 public:
-    GrTessellatingPathRenderer();
+    GrDashLinePathRenderer(GrContext*);
+    ~GrDashLinePathRenderer();
 
     bool canDrawPath(const GrDrawTarget*,
                      const GrPipelineBuilder*,
-                     const SkMatrix&,
+                     const SkMatrix& viewMatrix,
                      const SkPath&,
-                     const SkStrokeRec&,
+                     const GrStrokeInfo&,
                      bool antiAlias) const override;
+
 protected:
-
     StencilSupport onGetStencilSupport(const GrDrawTarget*,
                                        const GrPipelineBuilder*,
                                        const SkPath&,
-                                       const SkStrokeRec&) const override;
+                                       const GrStrokeInfo&) const override {
+      return kNoSupport_StencilSupport;
+    }
 
     bool onDrawPath(GrDrawTarget*,
                     GrPipelineBuilder*,
                     GrColor,
                     const SkMatrix& viewMatrix,
                     const SkPath&,
-                    const SkStrokeRec&,
+                    const GrStrokeInfo&,
                     bool antiAlias) override;
-
+    SkAutoTUnref<GrGpu> fGpu;
     typedef GrPathRenderer INHERITED;
 };
 
+
 #endif