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Merge change 26776 into eclair

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* changes:
  wallpaper: don't erase the background, just to repaint over it. saves 1.7 ms on some hardware
This commit is contained in:
Android (Google) Code Review
2009-09-24 00:41:46 -04:00
parent 85abdc59c3 e2d034c901
commit 63e118ed79
1 changed files with 12 additions and 7 deletions
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19
core/java/com/android/internal/service/wallpaper/ImageWallpaper.java
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@@ -19,6 +19,7 @@ package com.android.internal.service.wallpaper;
import android.app.WallpaperManager;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.Region.Op;
import android.graphics.drawable.Drawable;
import android.os.HandlerThread;
import android.os.Process;
@@ -134,14 +135,18 @@ public class ImageWallpaper extends WallpaperService {
final int dh = frame.height();
final int bw = mBackground.getIntrinsicWidth();
final int bh = mBackground.getIntrinsicHeight();
final int availw = bw-dw;
final int availh = bh-dh;
int xPixels = availw > 0
? -(int)(availw*mXOffset+.5f) : -(availw/2);
int yPixels = availh > 0
? -(int)(availh*mYOffset+.5f) : -(availh/2);
final int availw = dw-bw;
final int availh = dh-bh;
int xPixels = availw < 0 ? (int)(availw*mXOffset+.5f) : (availw/2);
int yPixels = availh < 0 ? (int)(availh*mYOffset+.5f) : (availh/2);
c.translate(xPixels, yPixels);
c.drawColor(0xff000000);
if (availw<0 || availh<0) {
c.save(Canvas.CLIP_SAVE_FLAG);
c.clipRect(0, 0, bw, bh, Op.DIFFERENCE);
c.drawColor(0xff000000);
c.restore();
}
background.draw(c);
}
sh.unlockCanvasAndPost(c);