fix stroke sub-hairline threshold

ChrisCraik · ChrisCraik · commit 2154af209f6d · 2012-10-12T12:45:08.000-07:00
bug:7339943

Change-Id: I4051a03f4cd5bd2c313840208540601fb7a056e2
diff --git a/libs/hwui/PathRenderer.cpp b/libs/hwui/PathRenderer.cpp
@@ -215,7 +215,7 @@ void getStrokeVerticesFromPerimeterAA(const Vector<Vertex>& perimeter, float hal
     // alpha value (TODO: support different X/Y scale)
     float maxAlpha = 1.0f;
     if (halfStrokeWidth != 0 && inverseScaleX == inverseScaleY &&
-            halfStrokeWidth * inverseScaleX < 1.0f) {
+            halfStrokeWidth * inverseScaleX < 0.5f) {
         maxAlpha *= (2 * halfStrokeWidth) / inverseScaleX;
         halfStrokeWidth = 0.0f;
     }

Original file line number	Diff line number	Diff line change
`@@ -215,7 +215,7 @@ void getStrokeVerticesFromPerimeterAA(const Vector<Vertex>& perimeter, float hal`
`215`	`215`	`// alpha value (TODO: support different X/Y scale)`
`216`	`216`	`float maxAlpha = 1.0f;`
`217`	`217`	`if (halfStrokeWidth != 0 && inverseScaleX == inverseScaleY &&`
`218`		`- halfStrokeWidth * inverseScaleX < 1.0f) {`
	`218`	`+ halfStrokeWidth * inverseScaleX < 0.5f) {`
`219`	`219`	`maxAlpha = (2 halfStrokeWidth) / inverseScaleX;`
`220`	`220`	`halfStrokeWidth = 0.0f;`
`221`	`221`	`}`