New API for computing optimization invariants.

src/gpu/batches/GrTInstanceBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTInstanceBatch_DEFINED
 #define GrTInstanceBatch_DEFINED
 
@@ skipping 41 matching lines @@
 
     SkString dumpInfo() const override {
         SkString str;
         for (int i = 0; i < fGeoData.count(); ++i) {
             str.append(Impl::DumpInfo(fGeoData[i], i));
         }
         str.append(INHERITED::dumpInfo());
         return str;
     }
 
-    void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
+    void computeBatchToXPOverrides(GrInitInvariantOutput* color, GrInitInvariantOutput* coverage,
+                                   bool* usePLSDstRead) const {
         // When this is called on a batch, there is only one geometry bundle
-        out->setKnownFourComponents(fGeoData[0].fColor);
-    }
-
-    void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
-        Impl::InitInvariantOutputCoverage(out);
+        color->setKnownFourComponents(fGeoData[0].fColor);
+        Impl::InitInvariantOutputCoverage(coverage);
+        *usePLSDstRead = false;
     }
 
     void initBatchTracker(const GrPipelineOptimizations& opt) override {
         opt.getOverrideColorIfSet(&fGeoData[0].fColor);
         fOpts = opt;
     }
 
     SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
 
     // After seeding, the client should call init() so the Batch can initialize itself
@@ skipping 65 matching lines @@
         return true;
     }
 
     GrPipelineOptimizations fOpts;
     SkSTArray<1, Geometry, true> fGeoData;
 
     typedef GrVertexBatch INHERITED;
 };
 
 #endif