Move edge GrEffects to locally defined classes

src/gpu/effects/GrEllipseEdgeEffect.cpp

Index: src/gpu/effects/GrEllipseEdgeEffect.cpp
===================================================================
--- src/gpu/effects/GrEllipseEdgeEffect.cpp	(revision 8491)
+++ src/gpu/effects/GrEllipseEdgeEffect.cpp	(working copy)
@@ -1,102 +0,0 @@
-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "GrEllipseEdgeEffect.h"
-#include "gl/GrGLEffect.h"
-#include "gl/GrGLSL.h"
-#include "GrTBackendEffectFactory.h"
-
-class GrGLEllipseEdgeEffect : public GrGLEffect {
-public:
-    GrGLEllipseEdgeEffect(const GrBackendEffectFactory& factory, const GrDrawEffect&)
-    : INHERITED (factory) {}
-
-    virtual void emitCode(GrGLShaderBuilder* builder,
-                          const GrDrawEffect& drawEffect,
-                          EffectKey key,
-                          const char* outputColor,
-                          const char* inputColor,
-                          const TextureSamplerArray& samplers) SK_OVERRIDE {
-        const GrEllipseEdgeEffect& ellipseEffect = drawEffect.castEffect<GrEllipseEdgeEffect>();
-
-        const char *vsCenterName, *fsCenterName;
-        const char *vsEdgeName, *fsEdgeName;
-
-        builder->addVarying(kVec2f_GrSLType, "EllipseCenter", &vsCenterName, &fsCenterName);
-        const SkString* attr0Name =
-            builder->getEffectAttributeName(drawEffect.getVertexAttribIndices()[0]);
-        builder->vsCodeAppendf("\t%s = %s;\n", vsCenterName, attr0Name->c_str());
-
-        builder->addVarying(kVec4f_GrSLType, "EllipseEdge", &vsEdgeName, &fsEdgeName);
-        const SkString* attr1Name =
-            builder->getEffectAttributeName(drawEffect.getVertexAttribIndices()[1]);
-        builder->vsCodeAppendf("\t%s = %s;\n", vsEdgeName, attr1Name->c_str());
-
-        // translate to origin
-        builder->fsCodeAppendf("\tvec2 outerOffset = (%s.xy - %s.xy);\n",
-                               builder->fragmentPosition(), fsCenterName);
-        builder->fsCodeAppend("\tvec2 innerOffset = outerOffset;\n");
-        // scale y by xRadius/yRadius
-        builder->fsCodeAppendf("\touterOffset.y *= %s.y;\n", fsEdgeName);
-        builder->fsCodeAppend("\tfloat dOuter = length(outerOffset);\n");
-        // compare outer lengths against xOuterRadius
-        builder->fsCodeAppendf("\tfloat edgeAlpha = clamp(%s.x-dOuter, 0.0, 1.0);\n", fsEdgeName);
-
-        if (ellipseEffect.isStroked()) {
-            builder->fsCodeAppendf("\tinnerOffset.y *= %s.w;\n", fsEdgeName);
-            builder->fsCodeAppend("\tfloat dInner = length(innerOffset);\n");
-
-            // compare inner lengths against xInnerRadius
-            builder->fsCodeAppendf("\tfloat innerAlpha = clamp(dInner-%s.z, 0.0, 1.0);\n", fsEdgeName);
-            builder->fsCodeAppend("\tedgeAlpha *= innerAlpha;\n");
-        }
-
-        SkString modulate;
-        GrGLSLModulate4f(&modulate, inputColor, "edgeAlpha");
-        builder->fsCodeAppendf("\t%s = %s;\n", outputColor, modulate.c_str());
-    }
-
-    static inline EffectKey GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&) {
-        const GrEllipseEdgeEffect& ellipseEffect = drawEffect.castEffect<GrEllipseEdgeEffect>();
-
-        return ellipseEffect.isStroked() ? 0x1 : 0x0;
-    }
-
-    virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE {
-    }
-
-private:
-    typedef GrGLEffect INHERITED;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-
-GrEllipseEdgeEffect::GrEllipseEdgeEffect(bool stroke) : GrEffect() {
-    this->addVertexAttrib(kVec2f_GrSLType);
-    this->addVertexAttrib(kVec4f_GrSLType);
-
-    fStroke = stroke;
-}
-
-void GrEllipseEdgeEffect::getConstantColorComponents(GrColor* color, uint32_t* validFlags) const {
-    *validFlags = 0;
-}
-
-const GrBackendEffectFactory& GrEllipseEdgeEffect::getFactory() const {
-    return GrTBackendEffectFactory<GrEllipseEdgeEffect>::getInstance();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-GR_DEFINE_EFFECT_TEST(GrEllipseEdgeEffect);
-
-GrEffectRef* GrEllipseEdgeEffect::TestCreate(SkMWCRandom* random,
-                                               GrContext* context,
-                                               const GrDrawTargetCaps&,
-                                               GrTexture* textures[]) {
-    return GrEllipseEdgeEffect::Create(random->nextBool());
-}