Fix radii calculation

tests/DrawPathTest.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 "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkDashPathEffect.h"
@@ skipping 295 matching lines @@
     SkPaint paint;
     paint.setStyle(SkPaint::kStroke_Style);
     paint.setPathEffect(dash);
 
     SkPath filteredPath;
     SkStrokeRec rec(paint);
     REPORTER_ASSERT(reporter, !dash->filterPath(&filteredPath, path, &rec, nullptr));
     REPORTER_ASSERT(reporter, filteredPath.isEmpty());
 }
 
+// http://crbug.com/472147
+// This is a simplified version from the bug. RRect radii not properly scaled.
+static void test_crbug_472147_simple(skiatest::Reporter* reporter) {
+    SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(1000, 1000));
+    SkCanvas* canvas = surface->getCanvas();
+    SkPaint p;
+    SkRect r = SkRect::MakeLTRB(-246.0f, 33.0f, 848.0f, 33554464.0f);
+    SkVector radii[4] = {
+        { 13.0f, 8.0f }, { 170.0f, 2.0 }, { 256.0f, 33554430.0f }, { 120.0f, 5.0f }
+    };
+    SkRRect rr;
+    rr.setRectRadii(r, radii);
+    canvas->drawRRect(rr, p);
+}
+
+// http://crbug.com/472147
+// RRect radii not properly scaled.
+static void test_crbug_472147_actual(skiatest::Reporter* reporter) {
+    SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(1000, 1000));
+    SkCanvas* canvas = surface->getCanvas();
+    SkPaint p;
+    SkRect r = SkRect::MakeLTRB(-246.0f, 33.0f, 848.0f, 33554464.0f);
+    SkVector radii[4] = {
+        { 13.0f, 8.0f }, { 170.0f, 2.0 }, { 256.0f, 33554430.0f }, { 120.0f, 5.0f }
+    };
+    SkRRect rr;
+    rr.setRectRadii(r, radii);
+    canvas->clipRRect(rr, SkRegion::kIntersect_Op, false);
+
+    SkRect r2 = SkRect::MakeLTRB(0, 33, 1102, 33554464);
+    canvas->drawRect(r2, p);
+}
+
 DEF_TEST(DrawPath, reporter) {
     test_giantaa();
     test_bug533();
     test_bigcubic();
     test_crbug_124652();
     test_crbug_140642();
     test_crbug_140803();
     test_inversepathwithclip();
     // why?
     if (false) test_crbug131181();
     test_infinite_dash(reporter);
     test_crbug_165432(reporter);
+    test_crbug_472147_simple(reporter);
+    test_crbug_472147_actual(reporter);
     test_big_aa_rect(reporter);
     test_halfway();
 }