From 9593e0a0073d77ab65cc97156da4d0e890e4cf27 Mon Sep 17 00:00:00 2001
From: Romain Guy <romainguy@android.com>
Date: Mon, 11 May 2009 15:28:49 -0700
Subject: [PATCH] Improve the rendering speed of the lock screen by reporting
 the appropriate opacity for the background wallpaper.

---
 .../android/internal/policy/impl/LockPatternKeyguardView.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/policy/com/android/internal/policy/impl/LockPatternKeyguardView.java b/policy/com/android/internal/policy/impl/LockPatternKeyguardView.java
index 1758deb4c5e4f..6a1c2794a76f9 100644
--- a/policy/com/android/internal/policy/impl/LockPatternKeyguardView.java
+++ b/policy/com/android/internal/policy/impl/LockPatternKeyguardView.java
@@ -590,9 +590,11 @@ public class LockPatternKeyguardView extends KeyguardViewBase {
      */
     static private class FastBitmapDrawable extends Drawable {
         private Bitmap mBitmap;
+        private int mOpacity;
 
         private FastBitmapDrawable(Bitmap bitmap) {
             mBitmap = bitmap;
+            mOpacity = mBitmap.hasAlpha() ? PixelFormat.TRANSLUCENT : PixelFormat.OPAQUE;
         }
 
         @Override
@@ -606,7 +608,7 @@ public class LockPatternKeyguardView extends KeyguardViewBase {
 
         @Override
         public int getOpacity() {
-            return PixelFormat.TRANSLUCENT;
+            return mOpacity;
         }
 
         @Override