Initial change to create GeometryProcessor

src/gpu/GrRODrawState.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 GrRODrawState_DEFINED
 #define GrRODrawState_DEFINED
 
@@ skipping 103 matching lines @@
     /// The input color to the first color-stage is either the constant color or interpolated
     /// per-vertex colors. The input to the first coverage stage is either a constant coverage
     /// (usually full-coverage) or interpolated per-vertex coverage.
     ///
     /// See the documentation of kCoverageDrawing_StateBit for information about disabling the
     /// the color / coverage distinction.
     ////
 
     int numColorStages() const { return fColorStages.count(); }
     int numCoverageStages() const { return fCoverageStages.count(); }
-    int numTotalStages() const { return this->numColorStages() + this->numCoverageStages(); }
+    int numTotalStages() const {
+         return this->numColorStages() + this->numCoverageStages() +
+                 (this->getGeometryProcessor() ? 1 : 0);
+    }
 
+    const GrEffectStage* getGeometryProcessor() const { return fGeometryProcessor.get(); }
     const GrEffectStage& getColorStage(int stageIdx) const { return fColorStages[stageIdx]; }
     const GrEffectStage& getCoverageStage(int stageIdx) const { return fCoverageStages[stageIdx]; }
 
     /**
      * Checks whether any of the effects will read the dst pixel color.
      */
     bool willEffectReadDstColor() const;
 
     /// @}
 
@@ skipping 216 matching lines @@
     const GrVertexAttrib*               fVAPtr;
     int                                 fVACount;
     size_t                              fVAStride;
     GrStencilSettings                   fStencilSettings;
     uint8_t                             fCoverage;
     DrawFace                            fDrawFace;
     GrBlendCoeff                        fSrcBlend;
     GrBlendCoeff                        fDstBlend;
 
     typedef SkSTArray<4, GrEffectStage> EffectStageArray;
+    SkAutoTUnref<GrEffectStage>         fGeometryProcessor;
     EffectStageArray                    fColorStages;
     EffectStageArray                    fCoverageStages;
 
     mutable GrBlendCoeff                fOptSrcBlend;
     mutable GrBlendCoeff                fOptDstBlend;
     mutable BlendOptFlags               fBlendOptFlags;
 
     // This is simply a different representation of info in fVertexAttribs and thus does
     // not need to be compared in op==.
     int fFixedFunctionVertexAttribIndices[kGrFixedFunctionVertexAttribBindingCnt];
 
 private:
     typedef SkRefCnt INHERITED;
 };
 
 GR_MAKE_BITFIELD_OPS(GrRODrawState::BlendOptFlags);
 
 #endif