Move DstCopy on gpu into the GrXferProcessor.

src/gpu/effects/GrDisableColorXP.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "effects/GrDisableColorXP.h"
 #include "GrProcessor.h"
 #include "gl/GrGLXferProcessor.h"
 #include "gl/builders/GrGLFragmentShaderBuilder.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
 class GrGLDisableColorXP : public GrGLXferProcessor {
 public:
     GrGLDisableColorXP(const GrProcessor&) {}
 
     ~GrGLDisableColorXP() SK_OVERRIDE {}
 
-    void emitCode(const EmitArgs& args) SK_OVERRIDE {
+    static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder*) {}
+
+private:
+    void onEmitCode(const EmitArgs& args) SK_OVERRIDE {
         // This emit code should be empty. However, on the nexus 6 there is a driver bug where if
         // you do not give gl_FragColor a value, the gl context is lost and we end up drawing
         // nothing. So this fix just sets the gl_FragColor arbitrarily to 0.
         GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
         fsBuilder->codeAppendf("%s = vec4(0);", args.fOutputPrimary);
     }
 
-    void setData(const GrGLProgramDataManager&, const GrXferProcessor&) SK_OVERRIDE {}
+    void onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) SK_OVERRIDE {}
 
-    static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBuilder*) {}
-
-private:
     typedef GrGLXferProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrDisableColorXP::GrDisableColorXP() {
     this->initClassID<GrDisableColorXP>();
 }
 
-void GrDisableColorXP::getGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
+void GrDisableColorXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
     GrGLDisableColorXP::GenKey(*this, caps, b);
 }
 
 GrGLXferProcessor* GrDisableColorXP::createGLInstance() const {
     return SkNEW_ARGS(GrGLDisableColorXP, (*this));
 }
 
 void GrDisableColorXP::getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const {
     blendInfo->fWriteColor = false;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrDisableColorXPFactory::GrDisableColorXPFactory() {
     this->initClassID<GrDisableColorXPFactory>();
 }
 
-GrXferProcessor* GrDisableColorXPFactory::createXferProcessor(const GrProcOptInfo& colorPOI,
-                                                              const GrProcOptInfo& covPOI) const {
+GrXferProcessor*
+GrDisableColorXPFactory::onCreateXferProcessor(const GrProcOptInfo& colorPOI,
+                                               const GrProcOptInfo& covPOI,
+                                               const GrDeviceCoordTexture* dstCopy) const {
     return GrDisableColorXP::Create();
 }
 
 GR_DEFINE_XP_FACTORY_TEST(GrDisableColorXPFactory);
 
 GrXPFactory* GrDisableColorXPFactory::TestCreate(SkRandom* random,
                                                   GrContext*,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture*[]) {
     return GrDisableColorXPFactory::Create();
 }