added stroking support to GrAALinearizingConvexPathRenderer

src/gpu/GrAAConvexPathRenderer.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrAAConvexPathRenderer.h"
 
@@ skipping 690 matching lines @@
                           bool tweakAlphaForCoverage) {
     intptr_t verts = reinterpret_cast<intptr_t>(vertices);
 
     for (int i = 0; i < tess.numPts(); ++i) {
         *((SkPoint*)((intptr_t)verts + i * vertexStride)) = tess.point(i);
     }
 
     // Make 'verts' point to the colors
     verts += sizeof(SkPoint);
     for (int i = 0; i < tess.numPts(); ++i) {
-        SkASSERT(tess.depth(i) >= -0.5f && tess.depth(i) <= 0.5f);
         if (tweakAlphaForCoverage) {
-            SkASSERT(SkScalarRoundToInt(255.0f * (tess.depth(i) + 0.5f)) <= 255);
-            unsigned scale = SkScalarRoundToInt(255.0f * (tess.depth(i) + 0.5f));
+            SkASSERT(SkScalarRoundToInt(255.0f * tess.coverage(i)) <= 255);
+            unsigned scale = SkScalarRoundToInt(255.0f * tess.coverage(i));
             GrColor scaledColor = (0xff == scale) ? color : SkAlphaMulQ(color, scale);
             *reinterpret_cast<GrColor*>(verts + i * vertexStride) = scaledColor;
         } else {
             *reinterpret_cast<GrColor*>(verts + i * vertexStride) = color;
             *reinterpret_cast<float*>(verts + i * vertexStride + sizeof(GrColor)) = 
-                                                                    tess.depth(i) + 0.5f;
+                    tess.coverage(i);
         }
     }
 
     for (int i = 0; i < tess.numIndices(); ++i) {
         idxs[i] = tess.index(i);
     }
 }
 
 static const GrGeometryProcessor* create_fill_gp(bool tweakAlphaForCoverage,
                                                  const SkMatrix& localMatrix,
@@ skipping 289 matching lines @@
 BATCH_TEST_DEFINE(AAConvexPathBatch) {
     AAConvexPathBatch::Geometry geometry;
     geometry.fColor = GrRandomColor(random);
     geometry.fViewMatrix = GrTest::TestMatrixInvertible(random);
     geometry.fPath = GrTest::TestPathConvex(random);
 
     return AAConvexPathBatch::Create(geometry);
 }
 
 #endif