Add bevel-stroke support in GrAARectRenderer

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
===================================================================
--- src/gpu/SkGpuDevice.cpp	(revision 11903)
+++ src/gpu/SkGpuDevice.cpp	(working copy)
@@ -620,11 +620,11 @@
     SkScalar width = paint.getStrokeWidth();
 
     /*
-        We have special code for hairline strokes, miter-strokes, and fills.
-        Anything else we just call our path code.
+        We have special code for hairline strokes, miter-strokes, bevel-stroke
+        and fills. Anything else we just call our path code.
      */
     bool usePath = doStroke && width > 0 &&
-                    paint.getStrokeJoin() != SkPaint::kMiter_Join;
+                    paint.getStrokeJoin() == SkPaint::kRound_Join;
     // another two reasons we might need to call drawPath...
     if (paint.getMaskFilter() || paint.getPathEffect()) {
         usePath = true;
@@ -640,12 +640,6 @@
         }
 #endif
     }
-    // small miter limit means right angles show bevel...
-    if (SkPaint::kMiter_Join == paint.getStrokeJoin() &&
-        paint.getStrokeMiter() < SK_ScalarSqrt2)
-    {
-        usePath = true;
-    }
     // until we can both stroke and fill rectangles
     if (paint.getStyle() == SkPaint::kStrokeAndFill_Style) {
         usePath = true;
@@ -662,7 +656,9 @@
     if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
         return;
     }
-    fContext->drawRect(grPaint, rect, doStroke ? width : -1);
+

[robertphillips, 2013/10/30 14:36:08]

How expensive is it to create the SkStrokeRect all the time?
Also, don't think we need the final "NULL" on this call to drawRect.

[yunchao, 2013/10/31 07:47:23]

Agree. create the SkStrokeRec when it is needed to in new CL, instead of
creating it every time. 

+    SkStrokeRec stroke(paint);
+    fContext->drawRect(grPaint, rect, doStroke ? &stroke : NULL, NULL);
 }
 
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