New API for computing optimization invariants.

src/gpu/batches/GrTessellatingPathRenderer.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrTessellatingPathRenderer.h"
 
 #include "GrBatchFlushState.h"
@@ skipping 1379 matching lines @@
     static GrDrawBatch* Create(const GrColor& color,
                                const SkPath& path,
                                const GrStrokeInfo& stroke,
                                const SkMatrix& viewMatrix,
                                SkRect clipBounds) {
         return new TessellatingPathBatch(color, path, stroke, viewMatrix, clipBounds);
     }
 
     const char* name() const override { return "TessellatingPathBatch"; }
 
-    void getInvariantOutputColor(GrInitInvariantOutput* out) const override {
-        out->setKnownFourComponents(fColor);
-    }
-
-    void getInvariantOutputCoverage(GrInitInvariantOutput* out) const override {
-        out->setUnknownSingleComponent();
+    void computePipelineOptimizations(GrInitInvariantOutput* color, 
+                                      GrInitInvariantOutput* coverage,
+                                      GrBatchToXPOverrides* overrides) const override {
+        color->setKnownFourComponents(fColor);
+        coverage->setUnknownSingleComponent();
+        overrides->fUsePLSDstRead = false;
     }
 
 private:
-    void initBatchTracker(const GrPipelineOptimizations& opt) override {
+    void initBatchTracker(const GrXPOverridesForBatch& overrides) override {
         // Handle any color overrides
-        if (!opt.readsColor()) {
+        if (!overrides.readsColor()) {
             fColor = GrColor_ILLEGAL;
         }
-        opt.getOverrideColorIfSet(&fColor);
-        fPipelineInfo = opt;
+        overrides.getOverrideColorIfSet(&fColor);
+        fPipelineInfo = overrides;
     }
 
     int tessellate(GrUniqueKey* key,
                    GrResourceProvider* resourceProvider,
                    SkAutoTUnref<GrVertexBuffer>& vertexBuffer,
                    bool canMapVB) {
         SkPath path;
         GrStrokeInfo stroke(fStroke);
         if (stroke.isDashed()) {
             if (!stroke.applyDashToPath(&path, &stroke, fPath)) {
@@ skipping 188 matching lines @@
             fBounds.outset(radius, radius);
         }
         viewMatrix.mapRect(&fBounds);
     }
 
     GrColor                 fColor;
     SkPath                  fPath;
     GrStrokeInfo            fStroke;
     SkMatrix                fViewMatrix;
     SkRect                  fClipBounds; // in source space
-    GrPipelineOptimizations fPipelineInfo;
+    GrXPOverridesForBatch   fPipelineInfo;
 
     typedef GrVertexBatch INHERITED;
 };
 
 bool GrTessellatingPathRenderer::onDrawPath(const DrawPathArgs& args) {
     SkASSERT(!args.fAntiAlias);
     const GrRenderTarget* rt = args.fPipelineBuilder->getRenderTarget();
     if (nullptr == rt) {
         return false;
     }
@@ skipping 27 matching lines @@
     bool result = viewMatrix.invert(&vmi);
     if (!result) {
         SkFAIL("Cannot invert matrix\n");
     }
     vmi.mapRect(&clipBounds);
     GrStrokeInfo strokeInfo = GrTest::TestStrokeInfo(random);
     return TessellatingPathBatch::Create(color, path, strokeInfo, viewMatrix, clipBounds);
 }
 
 #endif