Tessellating GPU path renderer.

src/gpu/GrTessellatingPathRenderer.h

-
 /*
- * Copyright 2012 Google Inc.
+ * 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 GrSoftwarePathRenderer_DEFINED
-#define GrSoftwarePathRenderer_DEFINED
+#ifndef GrTessellatingPathRenderer_DEFINED
+#define GrTessellatingPathRenderer_DEFINED
 
 #include "GrPathRenderer.h"
-
-class GrContext;
+#include "SkTemplates.h"
 
 /**
- * This class uses the software side to render a path to an SkBitmap and
- * then uploads the result to the gpu
+ *  Subclass that renders the path by converting to screen-space trapezoids plus
+ *   extra 1-pixel geometry for AA.
  */
-class GrSoftwarePathRenderer : public GrPathRenderer {
+class SK_API GrTessellatingPathRenderer : public GrPathRenderer {
 public:
-    GrSoftwarePathRenderer(GrContext* context)
-        : fContext(context) {
-    }
+    GrTessellatingPathRenderer();
 
-    virtual bool canDrawPath(const GrDrawTarget*,
+    virtual bool canDrawPath(const GrDrawTarget* target,
                              const GrPipelineBuilder*,
                              const SkMatrix& viewMatrix,
-                             const SkPath&,
-                             const SkStrokeRec&,
-                             bool antiAlias) const SK_OVERRIDE;
-protected:
+                             const SkPath& path,
+                             const SkStrokeRec& rec,
+                             bool antiAlias) const;
+
+    static bool              gWireframe;
+private:
+
     virtual StencilSupport onGetStencilSupport(const GrDrawTarget*,
                                                const GrPipelineBuilder*,
                                                const SkPath&,
                                                const SkStrokeRec&) const SK_OVERRIDE;
 
     virtual bool onDrawPath(GrDrawTarget*,
                             GrPipelineBuilder*,
                             GrColor,
                             const SkMatrix& viewMatrix,
                             const SkPath&,
                             const SkStrokeRec&,
                             bool antiAlias) SK_OVERRIDE;
 
-private:
-    GrContext*     fContext;
-
     typedef GrPathRenderer INHERITED;
 };
 
 #endif