Draw an empty border around glyphs to avoid sampling issues

Bug #6942209

The font renderer was preserving a 1 px border around each glyph to ensure
bilinear filtering would work nicely. Unfortunately, this border was not
set to 0 when glyphs were added in the cache to replace old evicted glyphs.

Change-Id: Ib85afca7ebad5cb63f960dc0e87ae162333dbfe8

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/HwAccelerationTest/src/com/android/test/hwui/TextActivity.java b/tests/HwAccelerationTest/src/com/android/test/hwui/TextActivity.java
index 0a868fa..4a1f5a2 100644
--- a/tests/HwAccelerationTest/src/com/android/test/hwui/TextActivity.java
+++ b/tests/HwAccelerationTest/src/com/android/test/hwui/TextActivity.java
@@ -153,6 +153,12 @@ public class TextActivity extends Activity {
             canvas.drawText("Hello OpenGL renderer!", 100, 300, mLargePaint);
             canvas.restore();
 
+//            mStrikePaint.setUnderlineText(false);
+//            canvas.save();
+//            canvas.scale(20.0f, 20.0f);
+//            canvas.drawText("aeiouyw", 5.0f, 750 / 20.0f, mStrikePaint);
+//            canvas.restore();
+//            mStrikePaint.setUnderlineText(true);
         }
     }
 }