Add GrEllipseEdgeEffect

include/gpu/GrEffectStage.h

 
 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 98 matching lines @@
                 fEffect->decDeferredRefCounts();
             }
         }
 
         void saveFrom(const GrEffectStage& stage) {
             GrAssert(!fInitialized);
             if (NULL != stage.fEffectRef) {
                 stage.fEffectRef->get()->incDeferredRefCounts();
                 fEffect = stage.fEffectRef->get();
                 fCoordChangeMatrix = stage.fCoordChangeMatrix;
+                fVertexAttribIndices = stage.fVertexAttribIndices;
             }
             SkDEBUGCODE(fInitialized = true;)
         }
 
         void restoreTo(GrEffectStage* stage) {
             GrAssert(fInitialized);
             const GrEffectRef* oldEffectRef = stage->fEffectRef;
             if (NULL != fEffect) {
                 stage->fEffectRef = GrEffect::CreateEffectRef(fEffect);
                 stage->fCoordChangeMatrix = fCoordChangeMatrix;
+                stage->fVertexAttribIndices = fVertexAttribIndices;
             } else {
                 stage->fEffectRef = NULL;
             }
             SkSafeUnref(oldEffectRef);
         }
 
         bool isEqual(const GrEffectStage& stage) const {
             if (NULL == stage.fEffectRef) {
                 return NULL == fEffect;
             } else if (NULL == fEffect) {
                 return false;
             }
 
-            if (!(*stage.getEffect())->isEqual(*fEffect)) {
+            if (fVertexAttribIndices != stage.fVertexAttribIndices) {
                 return false;
             }
 
+            if (!(*stage.getEffect())->isEqual(*fEffect)) {     
+                return false;   
+            }
+
             return fCoordChangeMatrix == stage.fCoordChangeMatrix;
         }
 
     private:
         const GrEffect*               fEffect;
         SkMatrix                      fCoordChangeMatrix;
+        SkSTArray<GrEffect::kMaxVertexAttribs, int, true> fVertexAttribIndices;
         SkDEBUGCODE(bool fInitialized;)
     };
 
     /**
      * Gets the matrix representing all changes of coordinate system since the GrEffect was
      * installed in the stage.
      */
     const SkMatrix& getCoordChangeMatrix() const { return fCoordChangeMatrix; }
 
     void reset() {
         GrSafeSetNull(fEffectRef);
     }
 
-    const GrEffectRef* setEffect(const GrEffectRef* EffectRef) {
+    const GrEffectRef* setEffect(const GrEffectRef* EffectRef, const int* attribIndices = NULL) {
         GrAssert(0 == fSavedCoordChangeCnt);
         GrSafeAssign(fEffectRef, EffectRef);
         fCoordChangeMatrix.reset();
+
+        fVertexAttribIndices.reset();
+        int numVertexAttribs = (EffectRef == NULL) ? 0 : EffectRef->get()->numVertexAttribs();
+        GrAssert(numVertexAttribs == 0 || attribIndices != NULL);
+        fVertexAttribIndices.push_back_n(numVertexAttribs, attribIndices);
+
         return EffectRef;
     }
 
     const GrEffectRef* getEffect() const { return fEffectRef; }
 
+    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;)
 };
 
 #endif