Add an InvariantOutput for the XPF.

include/gpu/GrPaint.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrPaint_DEFINED
@@ skipping 124 matching lines @@
     /**
      * Resets the paint to the defaults.
      */
     void reset() {
         this->resetOptions();
         this->resetColor();
         this->resetStages();
     }
 
     /**
-     * Determines whether the drawing with this paint is opaque with respect to both color blending
-     * and fractional coverage. It does not consider whether AA has been enabled on the paint or
-     * not. Depending upon whether multisampling or coverage-based AA is in use, AA may make the
-     * result only apply to the interior of primitives.
-     *
-     */
-    bool isOpaque() const;
-
-    /**
      * Returns true if isOpaque would return true and the paint represents a solid constant color
      * draw. If the result is true, constantColor will be updated to contain the constant color.
      */
     bool isOpaqueAndConstantColor(GrColor* constantColor) const;
 
     /**
      * Called when the source coord system from which geometry is rendered changes. It ensures that
      * the local coordinates seen by effects remains unchanged. oldToNew gives the transformation
      * from the previous coord system to the new coord system.
      */
@@ skipping 22 matching lines @@
                 return false;
             } else {
                 computed = true;
             }
             fCoverageStages[i].localCoordChange(oldToNew);
         }
         return true;
     }
 
 private:
-    /**
-     * Helper for isOpaque and isOpaqueAndConstantColor.
-     */
-    bool getOpaqueAndKnownColor(GrColor* solidColor, uint32_t* solidColorKnownComponents) const;
-
     friend class GrContext; // To access above two functions
     friend class GrStencilAndCoverTextContext;  // To access above two functions
 
     SkAutoTUnref<const GrXPFactory> fXPFactory;
     SkSTArray<4, GrFragmentStage>   fColorStages;
     SkSTArray<2, GrFragmentStage>   fCoverageStages;
 
     bool                            fAntiAlias;
     bool                            fDither;
 
     GrColor                         fColor;
 
     void resetOptions() {
         fAntiAlias = false;
         fDither = false;
     }
 
     void resetColor() {
         fColor = GrColorPackRGBA(0xff, 0xff, 0xff, 0xff);
     }
 
     void resetStages();
 };
 
 #endif