Revert of removing GrDrawEffect

src/gpu/effects/GrConvexPolyEffect.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 "gl/builders/GrGLProgramBuilder.h"
 #include "GrConvexPolyEffect.h"
 
@@ skipping 32 matching lines @@
     GrEffectEdgeType getEdgeType() const { return fEdgeType; }
 
     virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
 
 private:
     AARectEffect(GrEffectEdgeType edgeType, const SkRect& rect) : fRect(rect), fEdgeType(edgeType) {
         this->setWillReadFragmentPosition();
     }
 
     virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE {
-        const AARectEffect& aare = other.cast<AARectEffect>();
+        const AARectEffect& aare = CastEffect<AARectEffect>(other);
         return fRect == aare.fRect;
     }
 
     SkRect fRect;
     GrEffectEdgeType fEdgeType;
 
     typedef GrEffect INHERITED;
 
     GR_DECLARE_EFFECT_TEST;
 
@@ skipping 16 matching lines @@
 
         effect = AARectEffect::Create(edgeType, rect);
     } while (NULL == effect);
     return effect;
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 class GLAARectEffect : public GrGLEffect {
 public:
-    GLAARectEffect(const GrBackendEffectFactory&, const GrEffect&);
+    GLAARectEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
     virtual void emitCode(GrGLProgramBuilder* builder,
-                          const GrEffect& effect,
+                          const GrDrawEffect& drawEffect,
                           const GrEffectKey& key,
                           const char* outputColor,
                           const char* inputColor,
                           const TransformedCoordsArray&,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
-    static inline void GenKey(const GrEffect&, const GrGLCaps&, GrEffectKeyBuilder*);
+    static inline void GenKey(const GrDrawEffect&, const GrGLCaps&, GrEffectKeyBuilder*);
 
-    virtual void setData(const GrGLProgramDataManager&, const GrEffect&) SK_OVERRIDE;
+    virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_OVERRIDE;
 
 private:
     GrGLProgramDataManager::UniformHandle fRectUniform;
     SkRect                                fPrevRect;
     typedef GrGLEffect INHERITED;
 };
 
 GLAARectEffect::GLAARectEffect(const GrBackendEffectFactory& factory,
-                               const GrEffect& effect)
+                               const GrDrawEffect& drawEffect)
     : INHERITED (factory) {
     fPrevRect.fLeft = SK_ScalarNaN;
 }
 
 void GLAARectEffect::emitCode(GrGLProgramBuilder* builder,
-                              const GrEffect& effect,
+                              const GrDrawEffect& drawEffect,
                               const GrEffectKey& key,
                               const char* outputColor,
                               const char* inputColor,
                               const TransformedCoordsArray&,
                               const TextureSamplerArray& samplers) {
-    const AARectEffect& aare = effect.cast<AARectEffect>();
+    const AARectEffect& aare = drawEffect.castEffect<AARectEffect>();
     const char *rectName;
     // The rect uniform's xyzw refer to (left + 0.5, top + 0.5, right - 0.5, bottom - 0.5),
     // respectively.
     fRectUniform = builder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
                                        kVec4f_GrSLType,
                                        "rect",
                                        &rectName);
 
     GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     const char* fragmentPos = fsBuilder->fragmentPosition();
@@ skipping 16 matching lines @@
         fsBuilder->codeAppendf("\t\talpha *= (%s.w - %s.y) > -0.5 ? 1.0 : 0.0;\n", rectName, fragmentPos);
     }
 
     if (GrEffectEdgeTypeIsInverseFill(aare.getEdgeType())) {
         fsBuilder->codeAppend("\t\talpha = 1.0 - alpha;\n");
     }
     fsBuilder->codeAppendf("\t\t%s = %s;\n", outputColor,
                            (GrGLSLExpr4(inputColor) * GrGLSLExpr1("alpha")).c_str());
 }
 
-void GLAARectEffect::setData(const GrGLProgramDataManager& pdman, const GrEffect& effect) {
-    const AARectEffect& aare = effect.cast<AARectEffect>();
+void GLAARectEffect::setData(const GrGLProgramDataManager& pdman, const GrDrawEffect& drawEffect) {
+    const AARectEffect& aare = drawEffect.castEffect<AARectEffect>();
     const SkRect& rect = aare.getRect();
     if (rect != fPrevRect) {
         pdman.set4f(fRectUniform, rect.fLeft + 0.5f, rect.fTop + 0.5f,
                    rect.fRight - 0.5f, rect.fBottom - 0.5f);
         fPrevRect = rect;
     }
 }
 
-void GLAARectEffect::GenKey(const GrEffect& effect, const GrGLCaps&,
+void GLAARectEffect::GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&,
                             GrEffectKeyBuilder* b) {
-    const AARectEffect& aare = effect.cast<AARectEffect>();
+    const AARectEffect& aare = drawEffect.castEffect<AARectEffect>();
     b->add32(aare.getEdgeType());
 }
 
 const GrBackendEffectFactory& AARectEffect::getFactory() const {
     return GrTBackendEffectFactory<AARectEffect>::getInstance();
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 class GrGLConvexPolyEffect : public GrGLEffect {
 public:
-    GrGLConvexPolyEffect(const GrBackendEffectFactory&, const GrEffect&);
+    GrGLConvexPolyEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
     virtual void emitCode(GrGLProgramBuilder* builder,
-                          const GrEffect& effect,
+                          const GrDrawEffect& drawEffect,
                           const GrEffectKey& key,
                           const char* outputColor,
                           const char* inputColor,
                           const TransformedCoordsArray&,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
-    static inline void GenKey(const GrEffect&, const GrGLCaps&, GrEffectKeyBuilder*);
+    static inline void GenKey(const GrDrawEffect&, const GrGLCaps&, GrEffectKeyBuilder*);
 
-    virtual void setData(const GrGLProgramDataManager&, const GrEffect&) SK_OVERRIDE;
+    virtual void setData(const GrGLProgramDataManager&, const GrDrawEffect&) SK_OVERRIDE;
 
 private:
     GrGLProgramDataManager::UniformHandle fEdgeUniform;
     SkScalar                              fPrevEdges[3 * GrConvexPolyEffect::kMaxEdges];
     typedef GrGLEffect INHERITED;
 };
 
 GrGLConvexPolyEffect::GrGLConvexPolyEffect(const GrBackendEffectFactory& factory,
-                                           const GrEffect& effect)
+                                           const GrDrawEffect& drawEffect)
     : INHERITED (factory) {
     fPrevEdges[0] = SK_ScalarNaN;
 }
 
 void GrGLConvexPolyEffect::emitCode(GrGLProgramBuilder* builder,
-                                    const GrEffect& effect,
+                                    const GrDrawEffect& drawEffect,
                                     const GrEffectKey& key,
                                     const char* outputColor,
                                     const char* inputColor,
                                     const TransformedCoordsArray&,
                                     const TextureSamplerArray& samplers) {
-    const GrConvexPolyEffect& cpe = effect.cast<GrConvexPolyEffect>();
+    const GrConvexPolyEffect& cpe = drawEffect.castEffect<GrConvexPolyEffect>();
 
     const char *edgeArrayName;
     fEdgeUniform = builder->addUniformArray(GrGLProgramBuilder::kFragment_Visibility,
                                             kVec3f_GrSLType,
                                             "edges",
                                             cpe.getEdgeCount(),
                                             &edgeArrayName);
     GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder();
     fsBuilder->codeAppend("\t\tfloat alpha = 1.0;\n");
     fsBuilder->codeAppend("\t\tfloat edge;\n");
@@ skipping 14 matching lines @@
         fsBuilder->codeAppend("\t\tif (-1.0 == alpha) {\n\t\t\tdiscard;\n\t\t}\n");
     }
 
     if (GrEffectEdgeTypeIsInverseFill(cpe.getEdgeType())) {
         fsBuilder->codeAppend("\talpha = 1.0 - alpha;\n");
     }
     fsBuilder->codeAppendf("\t%s = %s;\n", outputColor,
                            (GrGLSLExpr4(inputColor) * GrGLSLExpr1("alpha")).c_str());
 }
 
-void GrGLConvexPolyEffect::setData(const GrGLProgramDataManager& pdman, const GrEffect& effect) {
-    const GrConvexPolyEffect& cpe = effect.cast<GrConvexPolyEffect>();
+void GrGLConvexPolyEffect::setData(const GrGLProgramDataManager& pdman, const GrDrawEffect& drawEffect) {
+    const GrConvexPolyEffect& cpe = drawEffect.castEffect<GrConvexPolyEffect>();
     size_t byteSize = 3 * cpe.getEdgeCount() * sizeof(SkScalar);
     if (0 != memcmp(fPrevEdges, cpe.getEdges(), byteSize)) {
         pdman.set3fv(fEdgeUniform, cpe.getEdgeCount(), cpe.getEdges());
         memcpy(fPrevEdges, cpe.getEdges(), byteSize);
     }
 }
 
-void GrGLConvexPolyEffect::GenKey(const GrEffect& effect, const GrGLCaps&,
+void GrGLConvexPolyEffect::GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&,
                                   GrEffectKeyBuilder* b) {
-    const GrConvexPolyEffect& cpe = effect.cast<GrConvexPolyEffect>();
+    const GrConvexPolyEffect& cpe = drawEffect.castEffect<GrConvexPolyEffect>();
     GR_STATIC_ASSERT(kGrEffectEdgeTypeCnt <= 8);
     uint32_t key = (cpe.getEdgeCount() << 3) | cpe.getEdgeType();
     b->add32(key);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 GrEffect* GrConvexPolyEffect::Create(GrEffectEdgeType type, const SkPath& path,
                                      const SkVector* offset) {
     if (kHairlineAA_GrEffectEdgeType == type) {
@@ skipping 70 matching lines @@
     memcpy(fEdges, edges, 3 * n * sizeof(SkScalar));
     // Outset the edges by 0.5 so that a pixel with center on an edge is 50% covered in the AA case
     // and 100% covered in the non-AA case.
     for (int i = 0; i < n; ++i) {
         fEdges[3 * i + 2] += SK_ScalarHalf;
     }
     this->setWillReadFragmentPosition();
 }
 
 bool GrConvexPolyEffect::onIsEqual(const GrEffect& other) const {
-    const GrConvexPolyEffect& cpe = other.cast<GrConvexPolyEffect>();
+    const GrConvexPolyEffect& cpe = CastEffect<GrConvexPolyEffect>(other);
     // ignore the fact that 0 == -0 and just use memcmp.
     return (cpe.fEdgeType == fEdgeType && cpe.fEdgeCount == fEdgeCount &&
             0 == memcmp(cpe.fEdges, fEdges, 3 * fEdgeCount * sizeof(SkScalar)));
 }
 
 //////////////////////////////////////////////////////////////////////////////
 
 GR_DEFINE_EFFECT_TEST(GrConvexPolyEffect);
 
 GrEffect* GrConvexPolyEffect::TestCreate(SkRandom* random,
                                          GrContext*,
                                          const GrDrawTargetCaps& caps,
                                          GrTexture*[]) {
     int count = random->nextULessThan(kMaxEdges) + 1;
     SkScalar edges[kMaxEdges * 3];
     for (int i = 0; i < 3 * count; ++i) {
         edges[i] = random->nextSScalar1();
     }
 
     GrEffect* effect;
     do {
         GrEffectEdgeType edgeType = static_cast<GrEffectEdgeType>(
                                         random->nextULessThan(kGrEffectEdgeTypeCnt));
         effect = GrConvexPolyEffect::Create(edgeType, count, edges);
     } while (NULL == effect);
     return effect;
 }