Auto-compare GrProcessors' texture accesses in isEqual().

src/effects/SkDisplacementMapEffect.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDisplacementMapEffect.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 463 matching lines @@
     this->addCoordTransform(&fColorTransform);
     this->addTextureAccess(&fColorAccess);
     this->setWillNotUseInputColor();
 }
 
 GrDisplacementMapEffect::~GrDisplacementMapEffect() {
 }
 
 bool GrDisplacementMapEffect::onIsEqual(const GrFragmentProcessor& sBase) const {
     const GrDisplacementMapEffect& s = sBase.cast<GrDisplacementMapEffect>();
-    return fDisplacementAccess.getTexture() == s.fDisplacementAccess.getTexture() &&
-           fColorAccess.getTexture() == s.fColorAccess.getTexture() &&
-           fXChannelSelector == s.fXChannelSelector &&
+    return fXChannelSelector == s.fXChannelSelector &&
            fYChannelSelector == s.fYChannelSelector &&
            fScale == s.fScale;
 }
 
 const GrBackendFragmentProcessorFactory& GrDisplacementMapEffect::getFactory() const {
     return GrTBackendFragmentProcessorFactory<GrDisplacementMapEffect>::getInstance();
 }
 
 void GrDisplacementMapEffect::onComputeInvariantOutput(InvariantOutput* inout) const {
     // Any displacement offset bringing a pixel out of bounds will output a color of (0,0,0,0),
@@ skipping 135 matching lines @@
 void GrGLDisplacementMapEffect::GenKey(const GrProcessor& proc,
                                        const GrGLCaps&, GrProcessorKeyBuilder* b) {
     const GrDisplacementMapEffect& displacementMap = proc.cast<GrDisplacementMapEffect>();
 
     uint32_t xKey = displacementMap.xChannelSelector();
     uint32_t yKey = displacementMap.yChannelSelector() << kChannelSelectorKeyBits;
 
     b->add32(xKey | yKey);
 }
 #endif