Make GrConvexPolyEffect support inverse fills and non-AA rects

src/gpu/effects/GrConvexPolyEffect.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 GrConvexPolyEffect_DEFINED
 #define GrConvexPolyEffect_DEFINED
 
 #include "GrDrawTargetCaps.h"
 #include "GrEffect.h"
 
 class GrGLConvexPolyEffect;
 class SkPath;
 
 /**
  * An effect that renders a convex polygon. It is intended to be used as a coverage effect.
  * Bounding geometry is rendered and the effect computes coverage based on the fragment's
  * position relative to the polygon.
  */
 class GrConvexPolyEffect : public GrEffect {
 public:
-    /** This could be expanded to include a AA hairline mode. If so, unify with GrBezierEffect's
-        enum. */
     enum EdgeType {
         kFillNoAA_EdgeType,
         kFillAA_EdgeType,
+        kInverseFillNoAA_EdgeType,
+        kInverseFillAA_EdgeType,
 
-        kLastEdgeType = kFillAA_EdgeType,
+        kLastEdgeType = kInverseFillAA_EdgeType,
     };
 
     enum {
         kEdgeTypeCnt = kLastEdgeType + 1,
         kMaxEdges = 8,
     };
 
     /**
      * edges is a set of n edge equations where n is limited to kMaxEdges. It contains 3*n values.
      * The edges should form a convex polygon. The positive half-plane is considered to be the
@@ skipping 16 matching lines @@
     /**
      * Creates an effect that clips against the path. If the path is not a convex polygon, is
      * inverse filled, or has too many edges, this will return NULL. If offset is non-NULL, then
      * the path is translated by the vector.
      */
     static GrEffectRef* Create(EdgeType, const SkPath&, const SkVector* offset= NULL);
 
     /**
      * Creates an effect that fills inside the rect with AA edges..
      */
-    static GrEffectRef* CreateForAAFillRect(const SkRect&);
+    static GrEffectRef* Create(EdgeType, const SkRect&);
 
     virtual ~GrConvexPolyEffect();
 
     static const char* Name() { return "ConvexPoly"; }
 
     EdgeType getEdgeType() const { return fEdgeType; }
 
     int getEdgeCount() const { return fEdgeCount; }
 
     const SkScalar* getEdges() const { return fEdges; }
@@ skipping 13 matching lines @@
     int      fEdgeCount;
     SkScalar fEdges[3 * kMaxEdges];
 
     GR_DECLARE_EFFECT_TEST;
 
     typedef GrEffect INHERITED;
 };
 
 
 #endif