Combine DimAnimator and DimSurface into DimLayer (1420b93f) · Commits · e / os / android_frameworks_base

services/java/com/android/server/wm/DimAnimator.java

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		/*
		* Copyright (C) 2011 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server.wm;

		import android.content.res.Resources;
		import android.graphics.PixelFormat;
		import android.util.Slog;
		import android.util.TypedValue;
		import android.view.Surface;
		import android.view.SurfaceSession;

		import java.io.PrintWriter;

		/**
		* DimAnimator class that controls the dim animation. This holds the surface and
		* all state used for dim animation.
		*/
		class DimAnimator {
		static final String TAG = "DimAnimator";

		Surface mDimSurface;
		boolean mDimShown = false;
		float mDimCurrentAlpha;
		float mDimTargetAlpha;
		float mDimDeltaPerMs;
		long mLastDimAnimTime;

		int mLastDimWidth, mLastDimHeight;

		DimAnimator (SurfaceSession session, final int layerStack) {
		try {
		if (WindowManagerService.DEBUG_SURFACE_TRACE) {
		mDimSurface = new WindowStateAnimator.SurfaceTrace(session,
		"DimAnimator",
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		} else {
		mDimSurface = new Surface(session, "DimAnimator",
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		}
		if (WindowManagerService.SHOW_TRANSACTIONS \|\|
		WindowManagerService.SHOW_SURFACE_ALLOC) Slog.i(WindowManagerService.TAG,
		" DIM " + mDimSurface + ": CREATE");
		mDimSurface.setLayerStack(layerStack);
		mDimSurface.setAlpha(0.0f);
		mDimSurface.show();
		} catch (Exception e) {
		Slog.e(WindowManagerService.TAG, "Exception creating Dim surface", e);
		}
		}

		/**
		* Set's the dim surface's layer and update dim parameters that will be used in
		* {@link #updateSurface} after all windows are examined.
		*/
		void updateParameters(final Resources res, final Parameters params, final long currentTime) {
		if (mDimSurface == null) {
		Slog.e(TAG, "updateParameters: no Surface");
		return;
		}

		// Multiply by 1.5 so that rotating a frozen surface that includes this does not expose a
		// corner.
		final int dw = (int) (params.mDimWidth * 1.5);
		final int dh = (int) (params.mDimHeight * 1.5);
		final WindowStateAnimator winAnimator = params.mDimWinAnimator;
		final float target = params.mDimTarget;
		if (!mDimShown) {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG,
		" DIM " + mDimSurface + ": SHOW pos=(0,0) (" + dw + "x" + dh + ")");
		mDimShown = true;
		try {
		mLastDimWidth = dw;
		mLastDimHeight = dh;
		// back off position so mDimXXX/4 is before and mDimXXX/4 is after
		mDimSurface.setPosition(-1 * dw / 6, -1 * dh /6);
		mDimSurface.setSize(dw, dh);
		mDimSurface.show();
		} catch (RuntimeException e) {
		Slog.w(WindowManagerService.TAG, "Failure showing dim surface", e);
		}
		} else if (mLastDimWidth != dw \|\| mLastDimHeight != dh) {
		mLastDimWidth = dw;
		mLastDimHeight = dh;
		mDimSurface.setSize(dw, dh);
		// back off position so mDimXXX/4 is before and mDimXXX/4 is after
		mDimSurface.setPosition(-1 * dw / 6, -1 * dh /6);
		}

		mDimSurface.setLayer(winAnimator.mAnimLayer - WindowManagerService.LAYER_OFFSET_DIM);

		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM "
		+ mDimSurface + ": layer=" + (winAnimator.mAnimLayer-1) + " target=" + target);
		if (mDimTargetAlpha != target) {
		// If the desired dim level has changed, then
		// start an animation to it.
		mLastDimAnimTime = currentTime;
		long duration = (winAnimator.mAnimating && winAnimator.mAnimation != null)
		? winAnimator.mAnimation.computeDurationHint()
		: WindowManagerService.DEFAULT_DIM_DURATION;
		if (target > mDimTargetAlpha) {
		TypedValue tv = new TypedValue();
		res.getValue(com.android.internal.R.fraction.config_dimBehindFadeDuration,
		tv, true);
		if (tv.type == TypedValue.TYPE_FRACTION) {
		duration = (long)tv.getFraction(duration, duration);
		} else if (tv.type >= TypedValue.TYPE_FIRST_INT
		&& tv.type <= TypedValue.TYPE_LAST_INT) {
		duration = tv.data;
		}
		}
		if (duration < 1) {
		// Don't divide by zero
		duration = 1;
		}
		mDimTargetAlpha = target;
		mDimDeltaPerMs = (mDimTargetAlpha-mDimCurrentAlpha) / duration;
		}
		}

		/**
		* Updating the surface's alpha. Returns true if the animation continues, or returns
		* false when the animation is finished and the dim surface is hidden.
		*/
		boolean updateSurface(boolean dimming, long currentTime, boolean displayFrozen) {
		if (mDimSurface == null) {
		Slog.e(TAG, "updateSurface: no Surface");
		return false;
		}

		if (!dimming) {
		if (mDimTargetAlpha != 0) {
		mLastDimAnimTime = currentTime;
		mDimTargetAlpha = 0;
		mDimDeltaPerMs = (-mDimCurrentAlpha) / WindowManagerService.DEFAULT_DIM_DURATION;
		}
		}

		boolean animating = mLastDimAnimTime != 0;
		if (animating) {
		mDimCurrentAlpha += mDimDeltaPerMs
		* (currentTime-mLastDimAnimTime);
		if (displayFrozen) {
		// If the display is frozen, there is no reason to animate.
		animating = false;
		} else if (mDimDeltaPerMs > 0) {
		if (mDimCurrentAlpha > mDimTargetAlpha) {
		animating = false;
		}
		} else if (mDimDeltaPerMs < 0) {
		if (mDimCurrentAlpha < mDimTargetAlpha) {
		animating = false;
		}
		} else {
		animating = false;
		}

		// Do we need to continue animating?
		if (animating) {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM "
		+ mDimSurface + ": alpha=" + mDimCurrentAlpha);
		mLastDimAnimTime = currentTime;
		mDimSurface.setAlpha(mDimCurrentAlpha);
		} else {
		mDimCurrentAlpha = mDimTargetAlpha;
		mLastDimAnimTime = 0;
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM "
		+ mDimSurface + ": final alpha=" + mDimCurrentAlpha);
		mDimSurface.setAlpha(mDimCurrentAlpha);
		if (!dimming) {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM " + mDimSurface
		+ ": HIDE");
		try {
		mDimSurface.hide();
		} catch (RuntimeException e) {
		Slog.w(WindowManagerService.TAG, "Illegal argument exception hiding dim surface");
		}
		mDimShown = false;
		}
		}
		}
		return animating;
		}

		public void kill() {
		if (mDimSurface != null) {
		mDimSurface.destroy();
		mDimSurface = null;
		}
		}

		public void printTo(String prefix, PrintWriter pw) {
		pw.print(prefix);
		pw.print("mDimSurface="); pw.print(mDimSurface);
		pw.print(" "); pw.print(mLastDimWidth); pw.print(" x ");
		pw.println(mLastDimHeight);
		pw.print(prefix);
		pw.print("mDimShown="); pw.print(mDimShown);
		pw.print(" current="); pw.print(mDimCurrentAlpha);
		pw.print(" target="); pw.print(mDimTargetAlpha);
		pw.print(" delta="); pw.print(mDimDeltaPerMs);
		pw.print(" lastAnimTime="); pw.println(mLastDimAnimTime);
		}

		static class Parameters {
		final WindowStateAnimator mDimWinAnimator;
		final int mDimWidth;
		final int mDimHeight;
		final float mDimTarget;
		Parameters(final WindowStateAnimator dimWinAnimator, final int dimWidth,
		final int dimHeight, final float dimTarget) {
		mDimWinAnimator = dimWinAnimator;
		mDimWidth = dimWidth;
		mDimHeight = dimHeight;
		mDimTarget = dimTarget;
		}

		Parameters(Parameters o) {
		mDimWinAnimator = o.mDimWinAnimator;
		mDimWidth = o.mDimWidth;
		mDimHeight = o.mDimHeight;
		mDimTarget = o.mDimTarget;
		}

		public void printTo(String prefix, PrintWriter pw) {
		pw.print(prefix);
		pw.print("mDimWinAnimator="); pw.print(mDimWinAnimator.mWin.mAttrs.getTitle());
		pw.print(" "); pw.print(mDimWidth); pw.print(" x ");
		pw.print(mDimHeight);
		pw.print(" mDimTarget="); pw.println(mDimTarget);
		}
		}
		}

services/java/com/android/server/wm/DimLayer.java

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		// Copyright 2012 Google Inc. All Rights Reserved.

		package com.android.server.wm;

		import android.graphics.PixelFormat;
		import android.os.SystemClock;
		import android.util.Slog;
		import android.view.DisplayInfo;
		import android.view.Surface;

		import java.io.PrintWriter;

		public class DimLayer {
		private static final String TAG = "DimLayer";
		private static final boolean DEBUG = true;

		/** Reference to the owner of this object. */
		final DisplayContent mDisplayContent;

		/** Actual surface that dims */
		Surface mDimSurface;

		/** Last value passed to mDimSurface.setAlpha() */
		float mAlpha = 0;

		/** Last value passed to mDimSurface.setLayer() */
		int mLayer = -1;

		/** Last values passed to mDimSurface.setSize() */
		int mLastDimWidth, mLastDimHeight;

		/** True after mDimSurface.show() has been called, false after mDimSurface.hide(). */
		private boolean mShowing = false;

		/** Value of mAlpha when beginning transition to mTargetAlpha */
		float mStartAlpha = 0;

		/** Final value of mAlpha following transition */
		float mTargetAlpha = 0;

		/** Time in units of SystemClock.uptimeMillis() at which the current transition started */
		long mStartTime;

		/** Time in milliseconds to take to transition from mStartAlpha to mTargetAlpha */
		long mDuration;

		DimLayer(WindowManagerService service, int displayId) {
		if (DEBUG) Slog.v(TAG, "Ctor: displayId=" + displayId);
		mDisplayContent = service.getDisplayContentLocked(displayId);
		Surface.openTransaction();
		try {
		if (WindowManagerService.DEBUG_SURFACE_TRACE) {
		mDimSurface = new WindowStateAnimator.SurfaceTrace(service.mFxSession,
		"DimSurface",
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		} else {
		mDimSurface = new Surface(service.mFxSession, TAG,
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		}
		if (WindowManagerService.SHOW_TRANSACTIONS \|\|
		WindowManagerService.SHOW_SURFACE_ALLOC) Slog.i(TAG,
		" DIM " + mDimSurface + ": CREATE");
		mDimSurface.setLayerStack(displayId);
		} catch (Exception e) {
		Slog.e(WindowManagerService.TAG, "Exception creating Dim surface", e);
		} finally {
		Surface.closeTransaction();
		}
		}

		/** Return true if dim layer is showing */
		boolean isDimming() {
		return mTargetAlpha != 0;
		}

		/** Return true if in a transition period */
		boolean isAnimating() {
		return mTargetAlpha != mAlpha;
		}

		float getTargetAlpha() {
		return mTargetAlpha;
		}

		private void setAlpha(float alpha) {
		if (mAlpha != alpha) {
		if (DEBUG) Slog.v(TAG, "setAlpha alpha=" + alpha);
		try {
		mDimSurface.setAlpha(alpha);
		if (alpha == 0 && mShowing) {
		if (DEBUG) Slog.v(TAG, "setAlpha hiding");
		mDimSurface.hide();
		mShowing = false;
		} else if (alpha > 0 && !mShowing) {
		if (DEBUG) Slog.v(TAG, "setAlpha showing");
		mDimSurface.show();
		mShowing = true;
		}
		} catch (RuntimeException e) {
		Slog.w(TAG, "Failure setting alpha immediately", e);
		}
		mAlpha = alpha;
		}
		}

		/**
		* @param duration The time to test.
		* @return True if the duration would lead to an earlier end to the current animation.
		*/
		private boolean durationEndsEarlier(long duration) {
		return SystemClock.uptimeMillis() + duration < mStartTime + mDuration;
		}

		/** Jump to the end of the animation.
		* NOTE: Must be called with Surface transaction open. */
		void show() {
		if (isAnimating()) {
		if (DEBUG) Slog.v(TAG, "show: immediate");
		show(mLayer, mTargetAlpha, 0);
		}
		}

		/**
		* Begin an animation to a new dim value.
		* NOTE: Must be called with Surface transaction open.
		*
		* @param layer The layer to set the surface to.
		* @param alpha The dim value to end at.
		* @param duration How long to take to get there in milliseconds.
		*/
		void show(int layer, float alpha, long duration) {
		if (DEBUG) Slog.v(TAG, "show: layer=" + layer + " alpha=" + alpha
		+ " duration=" + duration);
		if (mDimSurface == null) {
		Slog.e(TAG, "show: no Surface");
		// Make sure isAnimating() returns false.
		mTargetAlpha = mAlpha = 0;
		return;
		}

		// Set surface size to screen size.
		final DisplayInfo info = mDisplayContent.getDisplayInfo();
		// Multiply by 1.5 so that rotating a frozen surface that includes this does not expose a
		// corner.
		final int dw = (int) (info.logicalWidth * 1.5);
		final int dh = (int) (info.logicalHeight * 1.5);
		// back off position so 1/4 of Surface is before and 1/4 is after.
		final float xPos = -1 * dw / 6;
		final float yPos = -1 * dh / 6;

		if (mLastDimWidth != dw \|\| mLastDimHeight != dh \|\| mLayer != layer) {
		try {
		mDimSurface.setPosition(xPos, yPos);
		mDimSurface.setSize(dw, dh);
		mDimSurface.setLayer(layer);
		} catch (RuntimeException e) {
		Slog.w(TAG, "Failure setting size or layer", e);
		}
		mLastDimWidth = dw;
		mLastDimHeight = dh;
		mLayer = layer;
		}

		long curTime = SystemClock.uptimeMillis();
		final boolean animating = isAnimating();
		if ((animating && (mTargetAlpha != alpha \|\| durationEndsEarlier(duration)))
		\|\| (!animating && mAlpha != alpha)) {
		if (duration <= 0) {
		// No animation required, just set values.
		setAlpha(alpha);
		} else {
		// Start or continue animation with new parameters.
		mStartAlpha = mAlpha;
		mStartTime = curTime;
		mDuration = duration;
		}
		}
		if (DEBUG) Slog.v(TAG, "show: mStartAlpha=" + mStartAlpha + " mStartTime=" + mStartTime);
		mTargetAlpha = alpha;
		}

		/** Immediate hide.
		* NOTE: Must be called with Surface transaction open. */
		void hide() {
		if (mShowing) {
		if (DEBUG) Slog.v(TAG, "hide: immediate");
		hide(0);
		}
		}

		/**
		* Gradually fade to transparent.
		* NOTE: Must be called with Surface transaction open.
		*
		* @param duration Time to fade in milliseconds.
		*/
		void hide(long duration) {
		if (mShowing && (mTargetAlpha != 0 \|\| durationEndsEarlier(duration))) {
		if (DEBUG) Slog.v(TAG, "hide: duration=" + duration);
		show(mLayer, 0, duration);
		}
		}

		/**
		* Advance the dimming per the last #show(int, float, long) call.
		* NOTE: Must be called with Surface transaction open.
		*
		* @return True if animation is still required after this step.
		*/
		boolean stepAnimation() {
		if (mDimSurface == null) {
		Slog.e(TAG, "stepAnimation: null Surface");
		// Ensure that isAnimating() returns false;
		mTargetAlpha = mAlpha = 0;
		return false;
		}

		if (isAnimating()) {
		final long curTime = SystemClock.uptimeMillis();
		final float alphaDelta = mTargetAlpha - mStartAlpha;
		float alpha = mStartAlpha + alphaDelta * (curTime - mStartTime) / mDuration;
		if (alphaDelta > 0 && alpha > mTargetAlpha \|\|
		alphaDelta < 0 && alpha < mTargetAlpha) {
		// Don't exceed limits.
		alpha = mTargetAlpha;
		}
		if (DEBUG) Slog.v(TAG, "stepAnimation: curTime=" + curTime + " alpha=" + alpha);
		setAlpha(alpha);
		}

		return isAnimating();
		}

		/** Cleanup */
		void destroySurface() {
		if (DEBUG) Slog.v(TAG, "destroySurface.");
		if (mDimSurface != null) {
		mDimSurface.destroy();
		mDimSurface = null;
		}
		}

		public void printTo(String prefix, PrintWriter pw) {
		pw.print(prefix); pw.print("mDimSurface="); pw.println(mDimSurface);
		pw.print(prefix); pw.print(" mLayer="); pw.print(mLayer);
		pw.print(" mAlpha="); pw.println(mAlpha);
		pw.print(prefix); pw.print("mLastDimWidth="); pw.print(mLastDimWidth);
		pw.print(" mLastDimWidth="); pw.println(mLastDimWidth);
		pw.print(prefix); pw.print("Last animation: mStartTime="); pw.print(mStartTime);
		pw.print(" mDuration="); pw.print(mDuration);
		pw.print(" curTime="); pw.println(SystemClock.uptimeMillis());
		pw.print(" mStartAlpha="); pw.println(mStartAlpha);
		pw.print(" mTargetAlpha="); pw.print(mTargetAlpha);
		}
		}

services/java/com/android/server/wm/DimSurface.java

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		/*
		* Copyright (C) 2011 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.server.wm;

		import android.graphics.PixelFormat;
		import android.util.Slog;
		import android.view.DisplayInfo;
		import android.view.Surface;
		import android.view.SurfaceSession;

		import java.io.PrintWriter;

		class DimSurface {
		static final String TAG = "DimSurface";

		Surface mDimSurface;
		boolean mDimShown = false;
		int mDimColor = 0;
		int mLayer = -1;
		int mLastDimWidth, mLastDimHeight;
		final DisplayContent mDisplayContent;

		DimSurface(SurfaceSession session, DisplayContent displayContent) {
		mDisplayContent = displayContent;
		final int layerStack = displayContent.getDisplayId();
		try {
		if (WindowManagerService.DEBUG_SURFACE_TRACE) {
		mDimSurface = new WindowStateAnimator.SurfaceTrace(session,
		"DimSurface",
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		} else {
		mDimSurface = new Surface(session, "DimSurface",
		16, 16, PixelFormat.OPAQUE,
		Surface.FX_SURFACE_DIM \| Surface.HIDDEN);
		}
		if (WindowManagerService.SHOW_TRANSACTIONS \|\|
		WindowManagerService.SHOW_SURFACE_ALLOC) Slog.i(WindowManagerService.TAG,
		" DIM " + mDimSurface + ": CREATE");
		mDimSurface.setLayerStack(layerStack);
		mDimSurface.setAlpha(0.0f);
		mDimSurface.show();
		} catch (Exception e) {
		Slog.e(WindowManagerService.TAG, "Exception creating Dim surface", e);
		}
		}

		/**
		* Show the dim surface.
		*/
		void show(int layer, int color) {
		final DisplayInfo info = mDisplayContent.getDisplayInfo();
		final int dw = info.logicalWidth;
		final int dh = info.logicalHeight;
		if (mDimSurface == null) {
		Slog.e(TAG, "show: no Surface");
		return;
		}

		if (!mDimShown) {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM " + mDimSurface + ": SHOW pos=(0,0) (" +
		dw + "x" + dh + " layer=" + layer + ")");
		mDimShown = true;
		try {
		mLastDimWidth = dw;
		mLastDimHeight = dh;
		mDimSurface.setPosition(0, 0);
		mDimSurface.setSize(dw, dh);
		mDimSurface.setLayer(layer);
		mDimSurface.show();
		} catch (RuntimeException e) {
		Slog.w(WindowManagerService.TAG, "Failure showing dim surface", e);
		}
		} else if (mLastDimWidth != dw \|\| mLastDimHeight != dh \|\| mDimColor != color
		\|\| mLayer != layer) {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM " + mDimSurface + ": pos=(0,0) (" +
		dw + "x" + dh + " layer=" + layer + ")");
		mLastDimWidth = dw;
		mLastDimHeight = dh;
		mLayer = layer;
		mDimColor = color;
		mDimSurface.setSize(dw, dh);
		mDimSurface.setLayer(layer);
		mDimSurface.setAlpha(((color>>24)&0xff)/255.0f);
		}
		}

		void hide() {
		if (mDimSurface == null) {
		Slog.e(TAG, "hide: no Surface");
		return;
		}

		if (mDimShown) {
		mDimShown = false;
		try {
		if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " HIDE " + mDimSurface);
		mDimSurface.hide();
		} catch (RuntimeException e) {
		Slog.w(WindowManagerService.TAG, "Illegal argument exception hiding dim surface");
		}
		}
		}

		void kill() {
		if (mDimSurface != null) {
		mDimSurface.destroy();
		mDimSurface = null;
		}
		}

		public void printTo(String prefix, PrintWriter pw) {
		pw.print(prefix); pw.print("mDimSurface="); pw.println(mDimSurface);
		pw.print(prefix); pw.print("mDimShown="); pw.print(mDimShown);
		pw.print(" mLayer="); pw.print(mLayer);
		pw.print(" mDimColor=0x"); pw.println(Integer.toHexString(mDimColor));
		pw.print(prefix); pw.print("mLastDimWidth="); pw.print(mLastDimWidth);
		pw.print(" mLastDimWidth="); pw.println(mLastDimWidth);
		}
		}

services/java/com/android/server/wm/WindowAnimator.java

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services/java/com/android/server/wm/WindowManagerService.java

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