Add GrEllipseEdgeEffect

include/gpu/GrEffectStage.h

Index: include/gpu/GrEffectStage.h
===================================================================
--- include/gpu/GrEffectStage.h	(revision 7952)
+++ include/gpu/GrEffectStage.h	(working copy)
@@ -116,6 +116,7 @@
                 stage.fEffectRef->get()->incDeferredRefCounts();
                 fEffect = stage.fEffectRef->get();
                 fCoordChangeMatrix = stage.fCoordChangeMatrix;
+                fVertexAttribIndices = stage.fVertexAttribIndices;
             }
             SkDEBUGCODE(fInitialized = true;)
         }
@@ -126,6 +127,7 @@
             if (NULL != fEffect) {
                 stage->fEffectRef = GrEffect::CreateEffectRef(fEffect);
                 stage->fCoordChangeMatrix = fCoordChangeMatrix;
+                stage->fVertexAttribIndices = fVertexAttribIndices;
             } else {
                 stage->fEffectRef = NULL;
             }
@@ -139,6 +141,16 @@
                 return false;
             }
 
+            int vertexAttribCount = fVertexAttribIndices.count();
+            if (vertexAttribCount != stage.fVertexAttribIndices.count()) {
+                return false;
+            }
+            for (int i = 0; i < vertexAttribCount; ++i) {
+                if (fVertexAttribIndices[i] != stage.fVertexAttribIndices[i]) {
+                    return false;
+                }
+            }
+
             if (!(*stage.getEffect())->isEqual(*fEffect)) {
                 return false;
             }
@@ -149,6 +161,7 @@
     private:
         const GrEffect*               fEffect;
         SkMatrix                      fCoordChangeMatrix;
+        SkSTArray<2, int, true>       fVertexAttribIndices;
         SkDEBUGCODE(bool fInitialized;)
     };
 
@@ -171,9 +184,18 @@
 
     const GrEffectRef* getEffect() const { return fEffectRef; }
 
+    void setVertexAttribIndices(const int indices[], int count) { 
+        fVertexAttribIndices.reset();
+        fVertexAttribIndices.push_back_n(count, indices);
+    }
+
+    const int* getVertexAttribIndices() const { return fVertexAttribIndices.begin(); }
+    int getVertexAttribIndexCount() const { return fVertexAttribIndices.count(); }
+
 private:
-    SkMatrix            fCoordChangeMatrix;
-    const GrEffectRef*  fEffectRef;
+    SkMatrix                fCoordChangeMatrix;
+    const GrEffectRef*      fEffectRef;
+    SkSTArray<2, int, true> fVertexAttribIndices;
 
     GR_DEBUGCODE(mutable int fSavedCoordChangeCnt;)
 };