Move GrXferProcessor subclasses into cpp files

src/effects/SkArithmeticMode_gpu.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkArithmeticMode_gpu.h"
 
 #if SK_SUPPORT_GPU
@@ skipping 140 matching lines @@
 
     return SkNEW_ARGS(GrArithmeticFP, (k1, k2, k3, k4, enforcePMColor, textures[0]));
 }
 
 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrArithmeticFP);
 
 ///////////////////////////////////////////////////////////////////////////////
 // Xfer Processor
 ///////////////////////////////////////////////////////////////////////////////
 
+class ArithmeticXP : public GrXferProcessor {
+public:
+    static GrXferProcessor* Create(float k1, float k2, float k3, float k4, bool enforcePMColor,
+                                   const GrDeviceCoordTexture* dstCopy,
+                                   bool willReadDstColor) {
+        return SkNEW_ARGS(ArithmeticXP, (k1, k2, k3, k4, enforcePMColor, dstCopy,
+                                         willReadDstColor));
+    }
+
+    ~ArithmeticXP() SK_OVERRIDE {};
+
+    const char* name() const SK_OVERRIDE { return "Arithmetic"; }
+
+    GrGLXferProcessor* createGLInstance() const SK_OVERRIDE;
+
+    bool hasSecondaryOutput() const SK_OVERRIDE { return false; }
+
+    GrXferProcessor::OptFlags getOptimizations(const GrProcOptInfo& colorPOI,
+                                               const GrProcOptInfo& coveragePOI,
+                                               bool doesStencilWrite,
+                                               GrColor* overrideColor,
+                                               const GrDrawTargetCaps& caps) SK_OVERRIDE;
+
+    void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE {
+        blendInfo->fSrcBlend = kOne_GrBlendCoeff;
+        blendInfo->fDstBlend = kZero_GrBlendCoeff;
+        blendInfo->fBlendConstant = 0;
+    }
+
+    float k1() const { return fK1; }
+    float k2() const { return fK2; }
+    float k3() const { return fK3; }
+    float k4() const { return fK4; }
+    bool enforcePMColor() const { return fEnforcePMColor; }
+
+private:
+    ArithmeticXP(float k1, float k2, float k3, float k4, bool enforcePMColor,
+                   const GrDeviceCoordTexture* dstCopy, bool willReadDstColor);
+
+    void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const SK_OVERRIDE;
+
+    bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE {
+        const ArithmeticXP& xp = xpBase.cast<ArithmeticXP>();
+        if (fK1 != xp.fK1 ||
+            fK2 != xp.fK2 ||
+            fK3 != xp.fK3 ||
+            fK4 != xp.fK4 ||
+            fEnforcePMColor != xp.fEnforcePMColor) {
+            return false;
+        }
+        return true;
+    }
+
+    float                       fK1, fK2, fK3, fK4;
+    bool                        fEnforcePMColor;
+
+    typedef GrXferProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
 class GLArithmeticXP : public GrGLXferProcessor {
 public:
     GLArithmeticXP(const GrProcessor&)
         : fEnforcePMColor(true) {
     }
 
     ~GLArithmeticXP() SK_OVERRIDE {}
 
     static void GenKey(const GrProcessor& processor, const GrGLCaps& caps,
                        GrProcessorKeyBuilder* b) {
-        const GrArithmeticXP& arith = processor.cast<GrArithmeticXP>();
+        const ArithmeticXP& arith = processor.cast<ArithmeticXP>();
         uint32_t key = arith.enforcePMColor() ? 1 : 0;
         b->add32(key);
     }
 
 private:
     void onEmitCode(const EmitArgs& args) SK_OVERRIDE {
         GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
 
         const char* dstColor = fsBuilder->dstColor();
 
         fKUni = args.fPB->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                      kVec4f_GrSLType, kDefault_GrSLPrecision,
                                      "k");
         const char* kUni = args.fPB->getUniformCStr(fKUni);
 
         add_arithmetic_code(fsBuilder, args.fInputColor, dstColor, args.fOutputPrimary, kUni, 
                             fEnforcePMColor);
 
         fsBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;",
                                args.fOutputPrimary, args.fOutputPrimary, args.fInputCoverage,
                                args.fInputCoverage, dstColor);
     }
 
     void onSetData(const GrGLProgramDataManager& pdman,
                    const GrXferProcessor& processor) SK_OVERRIDE {
-        const GrArithmeticXP& arith = processor.cast<GrArithmeticXP>();
+        const ArithmeticXP& arith = processor.cast<ArithmeticXP>();
         pdman.set4f(fKUni, arith.k1(), arith.k2(), arith.k3(), arith.k4());
         fEnforcePMColor = arith.enforcePMColor();
     };
 
     GrGLProgramDataManager::UniformHandle fKUni;
     bool fEnforcePMColor;
 
     typedef GrGLXferProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
-GrArithmeticXP::GrArithmeticXP(float k1, float k2, float k3, float k4, bool enforcePMColor,
-                               const GrDeviceCoordTexture* dstCopy, bool willReadDstColor)
+ArithmeticXP::ArithmeticXP(float k1, float k2, float k3, float k4, bool enforcePMColor,
+                           const GrDeviceCoordTexture* dstCopy, bool willReadDstColor)
     : INHERITED(dstCopy, willReadDstColor)
     , fK1(k1)
     , fK2(k2)
     , fK3(k3)
     , fK4(k4)
     , fEnforcePMColor(enforcePMColor) {
-    this->initClassID<GrArithmeticXP>();
+    this->initClassID<ArithmeticXP>();
 }
 
-void GrArithmeticXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
+void ArithmeticXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
     GLArithmeticXP::GenKey(*this, caps, b);
 }
 
-GrGLXferProcessor* GrArithmeticXP::createGLInstance() const {
+GrGLXferProcessor* ArithmeticXP::createGLInstance() const {
     return SkNEW_ARGS(GLArithmeticXP, (*this));
 }
 
-GrXferProcessor::OptFlags GrArithmeticXP::getOptimizations(const GrProcOptInfo& colorPOI,
-                                                           const GrProcOptInfo& coveragePOI,
-                                                           bool doesStencilWrite,
-                                                           GrColor* overrideColor,
-                                                           const GrDrawTargetCaps& caps) {
+GrXferProcessor::OptFlags ArithmeticXP::getOptimizations(const GrProcOptInfo& colorPOI,
+                                                         const GrProcOptInfo& coveragePOI,
+                                                         bool doesStencilWrite,
+                                                         GrColor* overrideColor,
+                                                         const GrDrawTargetCaps& caps) {
    return GrXferProcessor::kNone_Opt;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrArithmeticXPFactory::GrArithmeticXPFactory(float k1, float k2, float k3, float k4,
                                              bool enforcePMColor) 
     : fK1(k1), fK2(k2), fK3(k3), fK4(k4), fEnforcePMColor(enforcePMColor) {
     this->initClassID<GrArithmeticXPFactory>();
 }
 
+GrXferProcessor*
+GrArithmeticXPFactory::onCreateXferProcessor(const GrProcOptInfo& colorPOI,
+                                             const GrProcOptInfo& coveragePOI,
+                                             const GrDeviceCoordTexture* dstCopy) const {
+    return ArithmeticXP::Create(fK1, fK2, fK3, fK4, fEnforcePMColor, dstCopy,
+                                  this->willReadDstColor());
+}
+
+
 void GrArithmeticXPFactory::getInvariantOutput(const GrProcOptInfo& colorPOI,
                                                const GrProcOptInfo& coveragePOI,
                                                GrXPFactory::InvariantOutput* output) const {
     output->fWillBlendWithDst = true;
 
     // TODO: We could try to optimize this more. For example if we have solid coverage and fK1 and
     // fK3 are zero, then we won't be blending the color with dst at all so we can know what the
     // output color is (up to the valid color components passed in).
     output->fBlendedColorFlags = 0;
 }
 
 GR_DEFINE_XP_FACTORY_TEST(GrArithmeticXPFactory);
 
 GrXPFactory* GrArithmeticXPFactory::TestCreate(SkRandom* random,
                                                GrContext*,
                                                const GrDrawTargetCaps&,
                                                GrTexture*[]) {
     float k1 = random->nextF();
     float k2 = random->nextF();
     float k3 = random->nextF();
     float k4 = random->nextF();
     bool enforcePMColor = random->nextBool();
 
     return GrArithmeticXPFactory::Create(k1, k2, k3, k4, enforcePMColor);
 }
 
 #endif