Merge "Aggressively trim memory for system_process" into lmp-dev (c1dab7a2) · Commits · e / os / android_frameworks_base

core/java/android/app/ActivityThread.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -5132,6 +5132,8 @@ public final class ActivityThread {
		// process.
		if (!ActivityManager.isHighEndGfx()) {
		HardwareRenderer.disable(true);
		} else {
		HardwareRenderer.enableForegroundTrimming();
		}
		ActivityThread thread = new ActivityThread();
		thread.attach(true);

+12 −0

Original line number	Diff line number	Diff line
		@@ -186,6 +186,18 @@ public abstract class HardwareRenderer {
		}
		}

		public static boolean sTrimForeground = false;

		/**
		* Controls whether or not the hardware renderer should aggressively
		* trim memory. Note that this must not be set for any process that
		* uses WebView! This should be only used by system_process or similar
		* that do not go into the background.
		*/
		public static void enableForegroundTrimming() {
		sTrimForeground = true;
		}

		/**
		* Indicates whether hardware acceleration is available under any form for
		* the view hierarchy.

+3 −0

Original line number	Diff line number	Diff line
		@@ -804,6 +804,9 @@ public final class ViewRootImpl implements ViewParent,
		if (mAppVisible != visible) {
		mAppVisible = visible;
		scheduleTraversals();
		if (!mAppVisible) {
		WindowManagerGlobal.trimForeground();
		}
		}
		}

+33 −1

Original line number	Diff line number	Diff line
		@@ -375,6 +375,9 @@ public final class WindowManagerGlobal {
		mDyingViews.remove(view);
		}
		}
		if (HardwareRenderer.sTrimForeground && HardwareRenderer.isAvailable()) {
		doTrimForeground();
		}
		}

		private int findViewLocked(View view, boolean required) {
		@@ -413,6 +416,35 @@ public final class WindowManagerGlobal {
		}

		HardwareRenderer.trimMemory(level);

		if (HardwareRenderer.sTrimForeground) {
		doTrimForeground();
		}
		}
		}

		public static void trimForeground() {
		if (HardwareRenderer.sTrimForeground && HardwareRenderer.isAvailable()) {
		WindowManagerGlobal wm = WindowManagerGlobal.getInstance();
		wm.doTrimForeground();
		}
		}

		private void doTrimForeground() {
		boolean hasVisibleWindows = false;
		synchronized (mLock) {
		for (int i = mRoots.size() - 1; i >= 0; --i) {
		if (mRoots.get(i).getHostVisibility() == View.VISIBLE
		&& mRoots.get(i).mAttachInfo.mHardwareRenderer != null) {
		hasVisibleWindows = true;
		} else {
		mRoots.get(i).destroyHardwareResources();
		}
		}
		}
		if (!hasVisibleWindows) {
		HardwareRenderer.trimMemory(
		ComponentCallbacks2.TRIM_MEMORY_COMPLETE);
		}
		}

		@@ -428,7 +460,7 @@ public final class WindowManagerGlobal {
		for (int i = 0; i < count; i++) {
		ViewRootImpl root = mRoots.get(i);
		String name = getWindowName(root);
		pw.printf("\n\t%s", name);
		pw.printf("\n\t%s (visibility=%d)", name, root.getHostVisibility());

		HardwareRenderer renderer =
		root.getView().mAttachInfo.mHardwareRenderer;

+1 −0

Original line number	Diff line number	Diff line
		@@ -295,6 +295,7 @@ public class KeyguardServiceDelegate {
		stretch, stretch, type, flags, PixelFormat.TRANSLUCENT);
		lp.softInputMode = WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
		lp.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
		lp.privateFlags \|= WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED;
		lp.setTitle("KeyguardScrim");
		WindowManager wm = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
		wm.addView(view, lp);