Fix rendering of dotted corners when corner radius < border width.

servo · bors-servo · Nov 9, 2017 · Nov 7, 2017 · Nov 7, 2017 · Nov 8, 2017
commit 09cb3ec3ea00ca455f16888e764ce26760572d24
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/webrender/Cargo.toml b/webrender/Cargo.toml
@@ -17,7 +17,7 @@ query = []
 app_units = "0.5.6"
 bincode = "0.9"
 byteorder = "1.0"
-euclid = "0.15.2"
+euclid = "0.15.5"
 fxhash = "0.2.1"
 gleam = "0.4.8"
 lazy_static = "0.2"

diff --git a/webrender/src/border.rs b/webrender/src/border.rs
@@ -555,7 +555,7 @@ impl BorderCornerClipSource {
             BorderCornerClipKind::Dot => {
                 // The centers of dots follow an ellipse along the middle of the
                 // border radius.
-                let inner_radius = corner_radius - widths * 0.5;
+                let inner_radius = (corner_radius - widths * 0.5).abs();
                 let ellipse = Ellipse::new(inner_radius);
 
                 // Allocate a "worst case" number of dot clips. This can be