Add a requiresVertexShader method to GrGLEffect

src/gpu/effects/GrBezierEffect.cpp

 /*
  * 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 "GrBezierEffect.h"
 
 #include "gl/GrGLEffect.h"
 #include "gl/GrGLSL.h"
 #include "GrTBackendEffectFactory.h"
 
 class GrGLConicEffect : public GrGLEffect {
 public:
     GrGLConicEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
+    virtual bool requiresVertexShader(const GrDrawEffect&) const SK_OVERRIDE { return true; }
+
     virtual void emitCode(GrGLShaderBuilder* builder,
                           const GrDrawEffect& drawEffect,
                           EffectKey key,
                           const char* outputColor,
                           const char* inputColor,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
     static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&);
 
     virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE {}
@@ skipping 123 matching lines @@
 }
 
 //////////////////////////////////////////////////////////////////////////////
 // Quad
 //////////////////////////////////////////////////////////////////////////////
 
 class GrGLQuadEffect : public GrGLEffect {
 public:
     GrGLQuadEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
+    virtual bool requiresVertexShader(const GrDrawEffect&) const SK_OVERRIDE { return true; }
+
     virtual void emitCode(GrGLShaderBuilder* builder,
                           const GrDrawEffect& drawEffect,
                           EffectKey key,
                           const char* outputColor,
                           const char* inputColor,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
     static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&);
 
     virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE {}
@@ skipping 112 matching lines @@
 }
 
 //////////////////////////////////////////////////////////////////////////////
 // Cubic
 //////////////////////////////////////////////////////////////////////////////
 
 class GrGLCubicEffect : public GrGLEffect {
 public:
     GrGLCubicEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
 
+    virtual bool requiresVertexShader(const GrDrawEffect&) const SK_OVERRIDE { return true; }
+
     virtual void emitCode(GrGLShaderBuilder* builder,
                           const GrDrawEffect& drawEffect,
                           EffectKey key,
                           const char* outputColor,
                           const char* inputColor,
                           const TextureSamplerArray&) SK_OVERRIDE;
 
     static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&);
 
     virtual void setData(const GrGLUniformManager&, const GrDrawEffect&) SK_OVERRIDE {}
@@ skipping 114 matching lines @@
 
 GR_DEFINE_EFFECT_TEST(GrCubicEffect);
 
 GrEffectRef* GrCubicEffect::TestCreate(SkMWCRandom* random,
                                              GrContext*,
                                              const GrDrawTargetCaps& caps,
                                              GrTexture*[]) {
     const GrBezierEdgeType edgeType = static_cast<GrBezierEdgeType>(random->nextULessThan(3));
     return GrCubicEffect::Create(edgeType, caps);
 }