Revert of removing equality / compute invariant loops from GrGeometryProcessors (patchset #2 id:20001 of https://codereview.chromium.org/1111603004/)

Reason for revert:
breaks gl programs

Original issue's description:
> removing equality / compute invariant loops from GrGeometryProcessors
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/ef292a0901205b9785a30daae2c036aa34a970ca

TBR=bsalomon@google.com,joshualitt@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1110993002

1 files changed, 60 insertions, 0 deletions

diff --git a/src/gpu/GrOvalRenderer.cpp b/src/gpu/GrOvalRenderer.cpp
index abd34ae4c2..e9cda2fd64 100644
--- a/src/gpu/GrOvalRenderer.cpp
+++ b/src/gpu/GrOvalRenderer.cpp
@@ -174,6 +174,17 @@ public:
         local->fUsesLocalCoords = init.fUsesLocalCoords;
     }
 
+    bool onCanMakeEqual(const GrBatchTracker& m,
+                        const GrGeometryProcessor& that,
+                        const GrBatchTracker& t) const override {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineLocalMatrices(*this, mine.fUsesLocalCoords,
+                                       that, theirs.fUsesLocalCoords) &&
+               CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     CircleEdgeEffect(GrColor color, bool stroke, const SkMatrix& localMatrix)
         : INHERITED(color, SkMatrix::I(), localMatrix) {
@@ -184,6 +195,15 @@ private:
         fStroke = stroke;
     }
 
+    bool onIsEqual(const GrGeometryProcessor& other) const override {
+        const CircleEdgeEffect& cee = other.cast<CircleEdgeEffect>();
+        return cee.fStroke == fStroke;
+    }
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
+        out->setUnknownSingleComponent();
+    }
+
     struct BatchTracker {
         GrGPInput fInputColorType;
         GrColor fColor;
@@ -349,6 +369,17 @@ public:
         local->fUsesLocalCoords = init.fUsesLocalCoords;
     }
 
+    bool onCanMakeEqual(const GrBatchTracker& m,
+                        const GrGeometryProcessor& that,
+                        const GrBatchTracker& t) const override {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineLocalMatrices(*this, mine.fUsesLocalCoords,
+                                       that, theirs.fUsesLocalCoords) &&
+               CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     EllipseEdgeEffect(GrColor color, bool stroke, const SkMatrix& localMatrix)
         : INHERITED(color, SkMatrix::I(), localMatrix) {
@@ -361,6 +392,15 @@ private:
         fStroke = stroke;
     }
 
+    bool onIsEqual(const GrGeometryProcessor& other) const override {
+        const EllipseEdgeEffect& eee = other.cast<EllipseEdgeEffect>();
+        return eee.fStroke == fStroke;
+    }
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
+        out->setUnknownSingleComponent();
+    }
+
     struct BatchTracker {
         GrGPInput fInputColorType;
         GrColor fColor;
@@ -544,6 +584,17 @@ public:
         local->fUsesLocalCoords = init.fUsesLocalCoords;
     }
 
+    bool onCanMakeEqual(const GrBatchTracker& m,
+                        const GrGeometryProcessor& that,
+                        const GrBatchTracker& t) const override {
+        const BatchTracker& mine = m.cast<BatchTracker>();
+        const BatchTracker& theirs = t.cast<BatchTracker>();
+        return CanCombineLocalMatrices(*this, mine.fUsesLocalCoords,
+                                       that, theirs.fUsesLocalCoords) &&
+               CanCombineOutput(mine.fInputColorType, mine.fColor,
+                                theirs.fInputColorType, theirs.fColor);
+    }
+
 private:
     DIEllipseEdgeEffect(GrColor color, const SkMatrix& viewMatrix, Mode mode)
         : INHERITED(color, viewMatrix) {
@@ -556,6 +607,15 @@ private:
         fMode = mode;
     }
 
+    bool onIsEqual(const GrGeometryProcessor& other) const override {
+        const DIEllipseEdgeEffect& eee = other.cast<DIEllipseEdgeEffect>();
+        return eee.fMode == fMode;
+    }
+
+    void onGetInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
+        out->setUnknownSingleComponent();
+    }
+
     struct BatchTracker {
         GrGPInput fInputColorType;
         GrColor fColor;