Move GrXferProcessor subclasses into cpp files

src/gpu/effects/GrCoverageSetOpXP.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/GrCoverageSetOpXP.h"
 #include "GrColor.h"
 #include "GrDrawTargetCaps.h"
 #include "GrProcessor.h"
 #include "GrProcOptInfo.h"
 #include "gl/GrGLXferProcessor.h"
 #include "gl/builders/GrGLFragmentShaderBuilder.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
-class GrGLCoverageSetOpXP : public GrGLXferProcessor {
+/**
+ * This xfer processor directly blends the the src coverage with the dst using a set operator. It is
+ * useful for rendering coverage masks using CSG. It can optionally invert the src coverage before
+ * applying the set operator.
+ * */
+class CoverageSetOpXP : public GrXferProcessor {
 public:
-    GrGLCoverageSetOpXP(const GrProcessor&) {}
+    static GrXferProcessor* Create(SkRegion::Op regionOp, bool invertCoverage) {
+        return SkNEW_ARGS(CoverageSetOpXP, (regionOp, invertCoverage));
+    }
 
-    ~GrGLCoverageSetOpXP() SK_OVERRIDE {}
+    ~CoverageSetOpXP() SK_OVERRIDE;
+
+    const char* name() const SK_OVERRIDE { return "Coverage Set Op"; }
+
+    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;
+
+    void getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const SK_OVERRIDE;
+
+    bool invertCoverage() const { return fInvertCoverage; }
+
+private:
+    CoverageSetOpXP(SkRegion::Op regionOp, bool fInvertCoverage);
+
+    void onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const SK_OVERRIDE;
+
+    bool onIsEqual(const GrXferProcessor& xpBase) const SK_OVERRIDE {
+        const CoverageSetOpXP& xp = xpBase.cast<CoverageSetOpXP>();
+        return (fRegionOp == xp.fRegionOp &&
+                fInvertCoverage == xp.fInvertCoverage);
+    }
+
+    SkRegion::Op fRegionOp;
+    bool         fInvertCoverage;
+
+    typedef GrXferProcessor INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
+class GLCoverageSetOpXP : public GrGLXferProcessor {
+public:
+    GLCoverageSetOpXP(const GrProcessor&) {}
+
+    ~GLCoverageSetOpXP() SK_OVERRIDE {}
 
     static void GenKey(const GrProcessor& processor, const GrGLCaps& caps,
                        GrProcessorKeyBuilder* b) {
-        const GrCoverageSetOpXP& xp = processor.cast<GrCoverageSetOpXP>();
+        const CoverageSetOpXP& xp = processor.cast<CoverageSetOpXP>();
         uint32_t key = xp.invertCoverage() ?  0x0 : 0x1;
         b->add32(key);
     };
 
 private:
     void onEmitCode(const EmitArgs& args) SK_OVERRIDE {
-        const GrCoverageSetOpXP& xp = args.fXP.cast<GrCoverageSetOpXP>();
+        const CoverageSetOpXP& xp = args.fXP.cast<CoverageSetOpXP>();
         GrGLFPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
 
         if (xp.invertCoverage()) {
             fsBuilder->codeAppendf("%s = 1.0 - %s;", args.fOutputPrimary, args.fInputCoverage);
         } else {
             fsBuilder->codeAppendf("%s = %s;", args.fOutputPrimary, args.fInputCoverage);
         }
     }
 
     void onSetData(const GrGLProgramDataManager&, const GrXferProcessor&) SK_OVERRIDE {};
 
     typedef GrGLXferProcessor INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
-GrCoverageSetOpXP::GrCoverageSetOpXP(SkRegion::Op regionOp, bool invertCoverage)
+CoverageSetOpXP::CoverageSetOpXP(SkRegion::Op regionOp, bool invertCoverage)
     : fRegionOp(regionOp)
     , fInvertCoverage(invertCoverage) {
-    this->initClassID<GrCoverageSetOpXP>();
+    this->initClassID<CoverageSetOpXP>();
 }
 
-GrCoverageSetOpXP::~GrCoverageSetOpXP() {
+CoverageSetOpXP::~CoverageSetOpXP() {
 }
 
-void GrCoverageSetOpXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
-    GrGLCoverageSetOpXP::GenKey(*this, caps, b);
+void CoverageSetOpXP::onGetGLProcessorKey(const GrGLCaps& caps, GrProcessorKeyBuilder* b) const {
+    GLCoverageSetOpXP::GenKey(*this, caps, b);
 }
 
-GrGLXferProcessor* GrCoverageSetOpXP::createGLInstance() const {
-    return SkNEW_ARGS(GrGLCoverageSetOpXP, (*this));
+GrGLXferProcessor* CoverageSetOpXP::createGLInstance() const {
+    return SkNEW_ARGS(GLCoverageSetOpXP, (*this));
 }
 
 GrXferProcessor::OptFlags
-GrCoverageSetOpXP::getOptimizations(const GrProcOptInfo& colorPOI,
-                                    const GrProcOptInfo& coveragePOI,
-                                    bool doesStencilWrite,
-                                    GrColor* color,
-                                    const GrDrawTargetCaps& caps) {
+CoverageSetOpXP::getOptimizations(const GrProcOptInfo& colorPOI,
+                                  const GrProcOptInfo& coveragePOI,
+                                  bool doesStencilWrite,
+                                  GrColor* color,
+                                  const GrDrawTargetCaps& caps) {
     // We never look at the color input
     return GrXferProcessor::kIgnoreColor_OptFlag; 
 }
 
-void GrCoverageSetOpXP::getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const {
+void CoverageSetOpXP::getBlendInfo(GrXferProcessor::BlendInfo* blendInfo) const {
     switch (fRegionOp) {
         case SkRegion::kReplace_Op:
             blendInfo->fSrcBlend = kOne_GrBlendCoeff;
             blendInfo->fDstBlend = kZero_GrBlendCoeff;
             break;
         case SkRegion::kIntersect_Op:
             blendInfo->fSrcBlend = kDC_GrBlendCoeff;
             blendInfo->fDstBlend = kZero_GrBlendCoeff;
             break;
         case SkRegion::kUnion_Op:
@@ skipping 88 matching lines @@
         }
         default:
             return NULL;
     }
 }
 
 GrXferProcessor*
 GrCoverageSetOpXPFactory::onCreateXferProcessor(const GrProcOptInfo& colorPOI,
                                                 const GrProcOptInfo& covPOI,
                                                 const GrDeviceCoordTexture* dstCopy) const {
-    return GrCoverageSetOpXP::Create(fRegionOp, fInvertCoverage);
+    return CoverageSetOpXP::Create(fRegionOp, fInvertCoverage);
 }
 
 void GrCoverageSetOpXPFactory::getInvariantOutput(const GrProcOptInfo& colorPOI,
                                                   const GrProcOptInfo& coveragePOI,
                                                   GrXPFactory::InvariantOutput* output) const {
     if (SkRegion::kReplace_Op == fRegionOp) {
         if (coveragePOI.isSolidWhite()) {
             output->fBlendedColor = GrColor_WHITE;
             output->fBlendedColorFlags = kRGBA_GrColorComponentFlags;
         } else {
@@ skipping 11 matching lines @@
 
 GrXPFactory* GrCoverageSetOpXPFactory::TestCreate(SkRandom* random,
                                                   GrContext*,
                                                   const GrDrawTargetCaps&,
                                                   GrTexture*[]) {
     SkRegion::Op regionOp = SkRegion::Op(random->nextULessThan(SkRegion::kLastOp + 1));
     bool invertCoverage = random->nextBool();
     return GrCoverageSetOpXPFactory::Create(regionOp, invertCoverage);
 }