Tessellating GPU path renderer.

src/gpu/GrPathUtils.cpp

Index: src/gpu/GrPathUtils.cpp
diff --git a/src/gpu/GrPathUtils.cpp b/src/gpu/GrPathUtils.cpp
index 8e7a01d0915aa74a039c8d8e05abf3540fd4e4c3..d975833053ffbad93874147f6e7f42b840641cc0 100644
--- a/src/gpu/GrPathUtils.cpp
+++ b/src/gpu/GrPathUtils.cpp
@@ -44,7 +44,7 @@ uint32_t GrPathUtils::quadraticPointCount(const SkPoint points[],
     SkASSERT(tol > 0);
 
     SkScalar d = points[1].distanceToLineSegmentBetween(points[0], points[2]);
-    if (d <= tol) {
+    if (d <= tol || !SkScalarIsFinite(d)) {
         return 1;
     } else {
         // Each time we subdivide, d should be cut in 4. So we need to
@@ -99,7 +99,7 @@ uint32_t GrPathUtils::cubicPointCount(const SkPoint points[],
         points[1].distanceToLineSegmentBetweenSqd(points[0], points[3]),
         points[2].distanceToLineSegmentBetweenSqd(points[0], points[3]));
     d = SkScalarSqrt(d);
-    if (d <= tol) {
+    if (d <= tol || !SkScalarIsFinite(d)) {

[reed2, 2015/02/24 16:30:01]

FYI : Seems like the changes to this file could land independent of the larger
CL.

[Stephen White, 2015/02/24 18:45:16]

Done: https://codereview.chromium.org/951403002/

         return 1;
     } else {
         int temp = SkScalarCeilToInt(SkScalarSqrt(SkScalarDiv(d, tol)));