Fix reflected ovals.

Addresses an issue with ovals transformed by a matrix with a reflection.
Also adds a further check for circles to ensure that teeny tiny ovals
(sizes < SK_ScalarNearlyZero) aren't treated as circles.

Change-Id: Ie50e4a98365eba7c23e53e68886ebac981ed1def
Reviewed-on: https://skia-review.googlesource.com/13989
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>

1 files changed, 20 insertions, 0 deletions

diff --git a/gm/ovals.cpp b/gm/ovals.cpp
index ec9bd75d47..d6afdcbba7 100644
--- a/gm/ovals.cpp
+++ b/gm/ovals.cpp
@@ -268,6 +268,26 @@ protected:
 
             canvas->restore();
         }
+
+        // reflected oval
+        for (int i = 0; i < fPaints.count(); ++i) {
+            SkRect oval = SkRect::MakeLTRB(-30, -30, 30, 30);
+            canvas->save();
+            // position the oval, and make it at off-integer coords.
+            canvas->translate(kXStart + SK_Scalar1 * kXStep * 5 + SK_Scalar1 / 4,
+                              kYStart + SK_Scalar1 * kYStep * i + 3 * SK_Scalar1 / 4 +
+                              SK_ScalarHalf * kYStep);
+            canvas->rotate(90);
+            canvas->scale(1, -1);
+            canvas->scale(1, 0.66f);
+
+            SkColor color = genColor(&rand);
+            fPaints[i].setColor(color);
+
+            canvas->drawRect(oval, rectPaint);
+            canvas->drawOval(oval, fPaints[i]);
+            canvas->restore();
+        }
     }
 
 private: