Use fixed function pipeline only when drawing paths

src/gpu/gl/GrGLProgramEffects.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLProgramEffects_DEFINED
 #define GrGLProgramEffects_DEFINED
 
@@ skipping 219 matching lines @@
 private:
     GrGLFullShaderBuilder*                  fBuilder;
     SkAutoTDelete<GrGLVertexProgramEffects> fProgramEffects;
 
     typedef GrGLProgramEffectsBuilder INHERITED;
 };
 
 ////////////////////////////////////////////////////////////////////////////////
 
 /**
- * This is a GrGLProgramEffects implementation that does coord transforms with the the built-in GL
- * TexGen functionality.
+ * This is a GrGLProgramEffects implementation that does coord transforms with
+ * the the  NV_path_rendering PathTexGen functionality.
  */
-class GrGLTexGenProgramEffects : public GrGLProgramEffects {
+class GrGLPathTexGenProgramEffects : public GrGLProgramEffects {
 public:
     virtual void setData(GrGpuGL*,
                          const GrGLUniformManager&,
                          const GrEffectStage* effectStages[]) SK_OVERRIDE;
 
 private:
-    friend class GrGLTexGenProgramEffectsBuilder;
+    friend class GrGLPathTexGenProgramEffectsBuilder;
 
-    GrGLTexGenProgramEffects(int reserveCount)
+    GrGLPathTexGenProgramEffects(int reserveCount)
         : INHERITED(reserveCount)
         , fTransforms(reserveCount) {
     }
 
     /**
      * Helper for GrGLProgramEffectsBuilder::emitEfffect(). This method is meant to only be called
      * during the construction phase.
      */
     void emitEffect(GrGLFragmentOnlyShaderBuilder*,
                     const GrEffectStage&,
                     GrGLProgramEffects::EffectKey,
                     const char* outColor,
                     const char* inColor,
                     int stageIndex);
 
     /**
      * Helper for emitEffect(). Allocates texture units from the builder for each transform in an
      * effect. The transforms all use adjacent texture units. They either use two or three of the
      * coordinates at a given texture unit, depending on if they need perspective interpolation.
      * The expressions to access the transformed coords (i.e. 'vec2(gl_TexCoord[0])') as well as the
      * types are appended to the TransformedCoordsArray* object, which is in turn passed to the
      * effect's emitCode() function.
      */
-    void setupTexGen(GrGLFragmentOnlyShaderBuilder*,
-                     const GrEffectRef&,
-                     EffectKey,
-                     TransformedCoordsArray*);
+    void setupPathTexGen(GrGLFragmentOnlyShaderBuilder*,
+                         const GrEffectRef&,
+                         EffectKey,
+                         TransformedCoordsArray*);
 
     /**
-     * Helper for setData(). Sets the TexGen state for each transform in an effect.
+     * Helper for setData(). Sets the PathTexGen state for each transform in an effect.
      */
-    void setTexGenState(GrGpuGL*, const GrDrawEffect&, int effectIdx);
+    void setPathTexGenState(GrGpuGL*, const GrDrawEffect&, int effectIdx);
 
     struct Transforms {
         Transforms(EffectKey transformKey, int texCoordIndex)
             : fTransformKey(transformKey), fTexCoordIndex(texCoordIndex) {}
         EffectKey fTransformKey;
         int fTexCoordIndex;
     };
 
     SkTArray<Transforms> fTransforms;
 
     typedef GrGLProgramEffects INHERITED;
 };
 
 /**
- * This class is used to construct a GrGLTexGenProgramEffects* object.
+ * This class is used to construct a GrGLPathTexGenProgramEffects* object.
  */
-class GrGLTexGenProgramEffectsBuilder : public GrGLProgramEffectsBuilder {
+class GrGLPathTexGenProgramEffectsBuilder : public GrGLProgramEffectsBuilder {
 public:
-    GrGLTexGenProgramEffectsBuilder(GrGLFragmentOnlyShaderBuilder*, int reserveCount);
-    virtual ~GrGLTexGenProgramEffectsBuilder() { }
+    GrGLPathTexGenProgramEffectsBuilder(GrGLFragmentOnlyShaderBuilder*, int reserveCount);
+    virtual ~GrGLPathTexGenProgramEffectsBuilder() { }
 
     virtual void emitEffect(const GrEffectStage&,
                             GrGLProgramEffects::EffectKey,
                             const char* outColor,
                             const char* inColor,
                             int stageIndex) SK_OVERRIDE;
 
     /**
      * Finalizes the building process and returns the effect array. After this call, the builder
      * becomes invalid.
      */
     GrGLProgramEffects* finish() { return fProgramEffects.detach(); }
 
 private:
     GrGLFragmentOnlyShaderBuilder*          fBuilder;
-    SkAutoTDelete<GrGLTexGenProgramEffects> fProgramEffects;
+    SkAutoTDelete<GrGLPathTexGenProgramEffects> fProgramEffects;
 
     typedef GrGLProgramEffectsBuilder INHERITED;
 };
 
 #endif