Revert of removing equality / compute invariant loops from GrGeometryProcessors

src/gpu/effects/GrDistanceFieldGeoProc.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 GrDistanceFieldGeoProc_DEFINED
 #define GrDistanceFieldGeoProc_DEFINED
 
@@ skipping 31 matching lines @@
  * The output color of this effect is a modulation of the input color and a sample from a
  * distance field texture (using a smoothed step function near 0.5).
  * It allows explicit specification of the filtering and wrap modes (GrTextureParams). The input
  * coords are a custom attribute. Gamma correction is handled via a texture LUT.
  */
 class GrDistanceFieldA8TextGeoProc : public GrGeometryProcessor {
 public:
 #ifdef SK_GAMMA_APPLY_TO_A8
     static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix,
                                        GrTexture* tex, const GrTextureParams& params,
-                                       float lum, uint32_t flags) {
-        return SkNEW_ARGS(GrDistanceFieldA8TextGeoProc, (color, viewMatrix, tex, params, lum,
-                                                         flags));
+                                       float lum, uint32_t flags, bool opaqueVertexColors) {
+        return SkNEW_ARGS(GrDistanceFieldA8TextGeoProc, (color, viewMatrix, tex,
+                                                         params, lum, flags, opaqueVertexColors));
     }
 #else
     static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix,
                                        GrTexture* tex, const GrTextureParams& params,
-                                       uint32_t flags) {
-        return SkNEW_ARGS(GrDistanceFieldA8TextGeoProc, (color, viewMatrix, tex,  params, flags));
+                                       uint32_t flags, bool opaqueVertexColors) {
+        return SkNEW_ARGS(GrDistanceFieldA8TextGeoProc, (color, viewMatrix, tex,
+                                                         params, flags, opaqueVertexColors));
     }
 #endif
 
     virtual ~GrDistanceFieldA8TextGeoProc() {}
 
     const char* name() const override { return "DistanceFieldTexture"; }
 
     const Attribute* inPosition() const { return fInPosition; }
     const Attribute* inColor() const { return fInColor; }
     const Attribute* inTextureCoords() const { return fInTextureCoords; }
 #ifdef SK_GAMMA_APPLY_TO_A8
     float getDistanceAdjust() const { return fDistanceAdjust; }
 #endif
     uint32_t getFlags() const { return fFlags; }
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const override;
 
     virtual GrGLPrimitiveProcessor* createGLInstance(const GrBatchTracker& bt,
                                                      const GrGLCaps&) const override;
 
     void initBatchTracker(GrBatchTracker* bt, const GrPipelineInfo& init) const override;
 
+    bool onCanMakeEqual(const GrBatchTracker&,
+                        const GrGeometryProcessor&,
+                        const GrBatchTracker&) const override;
+
 private:
     GrDistanceFieldA8TextGeoProc(GrColor, const SkMatrix& viewMatrix,
                                  GrTexture* texture, const GrTextureParams& params,
 #ifdef SK_GAMMA_APPLY_TO_A8
                                  float distanceAdjust,
 #endif
-                                 uint32_t flags);
+                                 uint32_t flags, bool opaqueVertexColors);
+
+    bool onIsEqual(const GrGeometryProcessor& other) const override;
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput*) const override;
 
     GrTextureAccess  fTextureAccess;
 #ifdef SK_GAMMA_APPLY_TO_A8
     float            fDistanceAdjust;
 #endif
     uint32_t         fFlags;
     const Attribute* fInPosition;
     const Attribute* fInColor;
     const Attribute* fInTextureCoords;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
 };
 
 
 /**
 * The output color of this effect is a modulation of the input color and a sample from a
 * distance field texture (using a smoothed step function near 0.5).
 * It allows explicit specification of the filtering and wrap modes (GrTextureParams). The input
 * coords are a custom attribute. No gamma correct blending is applied. Used for paths only.
 */
 class GrDistanceFieldPathGeoProc : public GrGeometryProcessor {
 public:
     static GrGeometryProcessor* Create(GrColor color, const SkMatrix& viewMatrix, GrTexture* tex,
                                        const GrTextureParams& params,
-                                       uint32_t flags) {
-        return SkNEW_ARGS(GrDistanceFieldPathGeoProc, (color, viewMatrix, tex, params, flags));
+                                       uint32_t flags, bool opaqueVertexColors) {
+        return SkNEW_ARGS(GrDistanceFieldPathGeoProc, (color, viewMatrix, tex, params,
+                                                       flags, opaqueVertexColors));
     }
 
     virtual ~GrDistanceFieldPathGeoProc() {}
 
     const char* name() const override { return "DistanceFieldTexture"; }
 
     const Attribute* inPosition() const { return fInPosition; }
     const Attribute* inColor() const { return fInColor; }
     const Attribute* inTextureCoords() const { return fInTextureCoords; }
     uint32_t getFlags() const { return fFlags; }
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const override;
 
     virtual GrGLPrimitiveProcessor* createGLInstance(const GrBatchTracker& bt,
                                                      const GrGLCaps&) const override;
 
     void initBatchTracker(GrBatchTracker* bt, const GrPipelineInfo& init) const override;
 
+    bool onCanMakeEqual(const GrBatchTracker&,
+                        const GrGeometryProcessor&,
+                        const GrBatchTracker&) const override;
+
 private:
     GrDistanceFieldPathGeoProc(GrColor, const SkMatrix& viewMatrix, GrTexture* texture,
-                               const GrTextureParams& params, uint32_t flags);
+                               const GrTextureParams& params, uint32_t flags,
+                               bool opaqueVertexColors);
+
+    bool onIsEqual(const GrGeometryProcessor& other) const override;
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput*) const override;
 
     GrTextureAccess    fTextureAccess;
     uint32_t           fFlags;
     const Attribute* fInPosition;
     const Attribute* fInColor;
     const Attribute* fInTextureCoords;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
@@ skipping 40 matching lines @@
 
     virtual void getGLProcessorKey(const GrBatchTracker& bt,
                                    const GrGLCaps& caps,
                                    GrProcessorKeyBuilder* b) const override;
 
     virtual GrGLPrimitiveProcessor* createGLInstance(const GrBatchTracker& bt,
                                                      const GrGLCaps&) const override;
 
     void initBatchTracker(GrBatchTracker* bt, const GrPipelineInfo& init) const override;
 
+    bool onCanMakeEqual(const GrBatchTracker&,
+                        const GrGeometryProcessor&,
+                        const GrBatchTracker&) const override;
+
 private:
     GrDistanceFieldLCDTextGeoProc(GrColor, const SkMatrix& viewMatrix,
                                   GrTexture* texture, const GrTextureParams& params,
                                   DistanceAdjust wa, uint32_t flags);
 
+    bool onIsEqual(const GrGeometryProcessor& other) const override;
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput*) const override;
+
     GrTextureAccess  fTextureAccess;
     DistanceAdjust   fDistanceAdjust;
     uint32_t         fFlags;
     const Attribute* fInPosition;
     const Attribute* fInTextureCoords;
 
     GR_DECLARE_GEOMETRY_PROCESSOR_TEST;
 
     typedef GrGeometryProcessor INHERITED;
 };
 
 #endif