Move GrXferProcessor subclasses into cpp files

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 {
+/**
+ * This xfer processor disables color writing. Thus color and coverage and ignored and no blending
+ * occurs. This XP is usful for things like stenciling.
+ */
+class DisableColorXP : public GrXferProcessor {
 public:
-    GrGLDisableColorXP(const GrProcessor&) {}
+    static GrXferProcessor* Create() {
+        return SkNEW(DisableColorXP);
+    }
 
-    ~GrGLDisableColorXP() SK_OVERRIDE {}
+    ~DisableColorXP() SK_OVERRIDE {};
+
+    const char* name() const SK_OVERRIDE { return "Disable Color"; }
+
+    GrGLXferProcessor* createGLInstance() const SK_OVERRIDE;
+
+    bool hasSecondaryOutput() const SK_OVERRIDE { return false; }
+
+    GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI,
+                                               const GrProcOptInfo& coveragePOI,
+                                               bool doesStencilWrite,
+                                               GrColor* color,
+                                               const GrDrawTargetCaps& caps) SK_OVERRIDE {
+        return GrXferProcessor::kIgnoreColor_OptFlag | GrXferProcessor::kIgnoreCoverage_OptFlag;
+    }
+
+    void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE;
+
+private:
+    DisableColorXP();
+
+    void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const SK_OVERRIDE;
+
+    bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE {
+        return true;
+    }
+
+    typedef GrXferProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+class GLDisableColorXP : public GrGLXferProcessor {
+public:
+    GLDisableColorXP(const GrProcessor&) {}
+
+    ~GLDisableColorXP() 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 onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) SK_OVERRIDE {}
 
     typedef GrGLXferProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
-GrDisableColorXP::GrDisableColorXP() {
-    this->initClassID<GrDisableColorXP>();
+DisableColorXP::DisableColorXP() {
+    this->initClassID<DisableColorXP>();
 }
 
-void GrDisableColorXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
-    GrGLDisableColorXP::GenKey(*this, caps, b);
+void DisableColorXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
+    GLDisableColorXP::GenKey(*this, caps, b);
 }
 
-GrGLXferProcessor* GrDisableColorXP::createGLInstance() const {
-    return SkNEW_ARGS(GrGLDisableColorXP, (*this));
+GrGLXferProcessor* DisableColorXP::createGLInstance() const {
+    return SkNEW_ARGS(GLDisableColorXP, (*this));
 }
 
-void GrDisableColorXP::getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const {
+void DisableColorXP::getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const {
     blendInfo->fWriteColor = false;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrDisableColorXPFactory::GrDisableColorXPFactory() {
     this->initClassID<GrDisableColorXPFactory>();
 }
 
 GrXferProcessor*
 GrDisableColorXPFactory::onCreateXferProcessor(const GrProcOptInfo& colorPOI,
                                                const GrProcOptInfo& covPOI,
                                                const GrDeviceCoordTexture* dstCopy) const {
-    return GrDisableColorXP::Create();
+    return DisableColorXP::Create();
 }
 
 GR_DEFINE_XP_FACTORY_TEST(GrDisableColorXPFactory);
 
 GrXPFactory* GrDisableColorXPFactory::TestCreate(SkRandom* random,
                                                   GrContext*,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture*[]) {
     return GrDisableColorXPFactory::Create();
 }