Merge "Cache wallpaper bitmap to avoid re-loading on rotation" into jb-mr1-dev (e1f4ebf5) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/ImageWallpaper.java

+30 −11

Original line number	Diff line number	Diff line
		@@ -19,6 +19,7 @@ package com.android.systemui;
		import android.app.ActivityManager;
		import android.app.WallpaperManager;
		import android.content.BroadcastReceiver;
		import android.content.ComponentCallbacks2;
		import android.content.Context;
		import android.content.Intent;
		import android.graphics.Bitmap;
		@@ -62,6 +63,8 @@ public class ImageWallpaper extends WallpaperService {

		WallpaperManager mWallpaperManager;

		DrawableEngine mEngine;

		boolean mIsHwAccelerated;

		@Override
		@@ -77,12 +80,20 @@ public class ImageWallpaper extends WallpaperService {
		}
		}

		@Override
		public void onTrimMemory(int level) {
		if (mEngine != null) {
		mEngine.trimMemory(level);
		}
		}

		private static boolean isEmulator() {
		return "1".equals(SystemProperties.get(PROPERTY_KERNEL_QEMU, "0"));
		}

		public Engine onCreateEngine() {
		return new DrawableEngine();
		mEngine = new DrawableEngine();
		return mEngine;
		}

		class DrawableEngine extends Engine {
		@@ -155,6 +166,15 @@ public class ImageWallpaper extends WallpaperService {
		setFixedSizeAllowed(true);
		}

		public void trimMemory(int level) {
		if (level >= ComponentCallbacks2.TRIM_MEMORY_RUNNING_LOW &&
		mBackground != null && mIsHwAccelerated) {
		mBackground.recycle();
		mBackground = null;
		mWallpaperManager.forgetLoadedWallpaper();
		}
		}

		@Override
		public void onCreate(SurfaceHolder surfaceHolder) {
		if (DEBUG) {
		@@ -329,18 +349,19 @@ public class ImageWallpaper extends WallpaperService {
		}
		} else {
		drawWallpaperWithCanvas(sh, availw, availh, xPixels, yPixels);
		}

		if (FIXED_SIZED_SURFACE) {
		// If the surface is fixed-size, we should only need to
		// draw it once and then we'll let the window manager
		// position it appropriately. As such, we no longer needed
		// the loaded bitmap. Yay!
		// hw-accelerated path retains bitmap for faster rotation
		mBackground = null;
		mWallpaperManager.forgetLoadedWallpaper();
		}
		}

		}

		void updateWallpaperLocked() {
		Throwable exception = null;
		try {
		@@ -489,8 +510,6 @@ public class ImageWallpaper extends WallpaperService {
		GLUtils.texImage2D(GL_TEXTURE_2D, 0, GL_RGBA, bitmap, GL_UNSIGNED_BYTE, 0);
		checkGlError();

		bitmap.recycle();

		return texture;
		}