Evan Rosky | 2289ba1 | 2018-11-19 18:28:18 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.wm; |
| 18 | |
| 19 | import static com.android.server.wm.AnimationAdapter.STATUS_BAR_TRANSITION_DURATION; |
| 20 | import static com.android.server.wm.AnimationSpecProto.WINDOW; |
| 21 | import static com.android.server.wm.WindowAnimationSpecProto.ANIMATION; |
| 22 | |
| 23 | import android.graphics.Matrix; |
| 24 | import android.graphics.Rect; |
| 25 | import android.os.SystemClock; |
| 26 | import android.util.proto.ProtoOutputStream; |
| 27 | import android.view.DisplayInfo; |
| 28 | import android.view.SurfaceControl; |
| 29 | import android.view.SurfaceControl.Transaction; |
| 30 | import android.view.animation.AlphaAnimation; |
| 31 | import android.view.animation.Animation; |
| 32 | import android.view.animation.AnimationSet; |
| 33 | import android.view.animation.ClipRectAnimation; |
| 34 | import android.view.animation.ScaleAnimation; |
| 35 | import android.view.animation.Transformation; |
| 36 | import android.view.animation.TranslateAnimation; |
| 37 | |
| 38 | import com.android.server.wm.LocalAnimationAdapter.AnimationSpec; |
| 39 | |
| 40 | import java.io.PrintWriter; |
| 41 | |
| 42 | /** |
| 43 | * Animation spec for changing window animations. |
| 44 | */ |
| 45 | public class WindowChangeAnimationSpec implements AnimationSpec { |
| 46 | |
| 47 | private final ThreadLocal<TmpValues> mThreadLocalTmps = ThreadLocal.withInitial(TmpValues::new); |
| 48 | private final boolean mIsAppAnimation; |
| 49 | private final Rect mStartBounds; |
| 50 | private final Rect mEndBounds; |
| 51 | private final Rect mTmpRect = new Rect(); |
| 52 | |
| 53 | private Animation mAnimation; |
| 54 | private final boolean mIsThumbnail; |
| 55 | |
Evan Rosky | cf76bed | 2019-01-15 10:33:58 -0800 | [diff] [blame] | 56 | static final int ANIMATION_DURATION = AppTransition.DEFAULT_APP_TRANSITION_DURATION; |
| 57 | |
Evan Rosky | 2289ba1 | 2018-11-19 18:28:18 -0800 | [diff] [blame] | 58 | public WindowChangeAnimationSpec(Rect startBounds, Rect endBounds, DisplayInfo displayInfo, |
Evan Rosky | cf76bed | 2019-01-15 10:33:58 -0800 | [diff] [blame] | 59 | float durationScale, boolean isAppAnimation, boolean isThumbnail) { |
Evan Rosky | 2289ba1 | 2018-11-19 18:28:18 -0800 | [diff] [blame] | 60 | mStartBounds = new Rect(startBounds); |
| 61 | mEndBounds = new Rect(endBounds); |
| 62 | mIsAppAnimation = isAppAnimation; |
| 63 | mIsThumbnail = isThumbnail; |
Evan Rosky | cf76bed | 2019-01-15 10:33:58 -0800 | [diff] [blame] | 64 | createBoundsInterpolator((int) (ANIMATION_DURATION * durationScale), displayInfo); |
Evan Rosky | 2289ba1 | 2018-11-19 18:28:18 -0800 | [diff] [blame] | 65 | } |
| 66 | |
| 67 | @Override |
| 68 | public boolean getShowWallpaper() { |
| 69 | return false; |
| 70 | } |
| 71 | |
| 72 | @Override |
| 73 | public int getBackgroundColor() { |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public long getDuration() { |
| 79 | return mAnimation.getDuration(); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * This animator behaves slightly differently depending on whether the window is growing |
| 84 | * or shrinking: |
| 85 | * If growing, it will do a clip-reveal after quicker fade-out/scale of the smaller (old) |
| 86 | * snapshot. |
| 87 | * If shrinking, it will do an opposite clip-reveal on the old snapshot followed by a quicker |
| 88 | * fade-out of the bigger (old) snapshot while simultaneously shrinking the new window into |
| 89 | * place. |
| 90 | * @param duration |
| 91 | * @param displayInfo |
| 92 | */ |
| 93 | private void createBoundsInterpolator(long duration, DisplayInfo displayInfo) { |
| 94 | boolean growing = mEndBounds.width() - mStartBounds.width() |
| 95 | + mEndBounds.height() - mStartBounds.height() >= 0; |
| 96 | float scalePart = 0.7f; |
| 97 | long scalePeriod = (long) (duration * scalePart); |
| 98 | float startScaleX = scalePart * ((float) mStartBounds.width()) / mEndBounds.width() |
| 99 | + (1.f - scalePart); |
| 100 | float startScaleY = scalePart * ((float) mStartBounds.height()) / mEndBounds.height() |
| 101 | + (1.f - scalePart); |
| 102 | if (mIsThumbnail) { |
| 103 | AnimationSet animSet = new AnimationSet(true); |
| 104 | Animation anim = new AlphaAnimation(1.f, 0.f); |
| 105 | anim.setDuration(scalePeriod); |
| 106 | if (!growing) { |
| 107 | anim.setStartOffset(duration - scalePeriod); |
| 108 | } |
| 109 | animSet.addAnimation(anim); |
| 110 | float endScaleX = 1.f / startScaleX; |
| 111 | float endScaleY = 1.f / startScaleY; |
| 112 | anim = new ScaleAnimation(endScaleX, endScaleX, endScaleY, endScaleY); |
| 113 | anim.setDuration(duration); |
| 114 | animSet.addAnimation(anim); |
| 115 | mAnimation = animSet; |
| 116 | mAnimation.initialize(mStartBounds.width(), mStartBounds.height(), |
| 117 | mEndBounds.width(), mEndBounds.height()); |
| 118 | } else { |
| 119 | AnimationSet animSet = new AnimationSet(true); |
| 120 | final Animation scaleAnim = new ScaleAnimation(startScaleX, 1, startScaleY, 1); |
| 121 | scaleAnim.setDuration(scalePeriod); |
| 122 | if (!growing) { |
| 123 | scaleAnim.setStartOffset(duration - scalePeriod); |
| 124 | } |
| 125 | animSet.addAnimation(scaleAnim); |
| 126 | final Animation translateAnim = new TranslateAnimation(mStartBounds.left, |
| 127 | mEndBounds.left, mStartBounds.top, mEndBounds.top); |
| 128 | translateAnim.setDuration(duration); |
| 129 | animSet.addAnimation(translateAnim); |
| 130 | Rect startClip = new Rect(mStartBounds); |
| 131 | Rect endClip = new Rect(mEndBounds); |
| 132 | startClip.offsetTo(0, 0); |
| 133 | endClip.offsetTo(0, 0); |
| 134 | final Animation clipAnim = new ClipRectAnimation(startClip, endClip); |
| 135 | clipAnim.setDuration(duration); |
| 136 | animSet.addAnimation(clipAnim); |
| 137 | mAnimation = animSet; |
| 138 | mAnimation.initialize(mStartBounds.width(), mStartBounds.height(), |
| 139 | displayInfo.appWidth, displayInfo.appHeight); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void apply(Transaction t, SurfaceControl leash, long currentPlayTime) { |
| 145 | final TmpValues tmp = mThreadLocalTmps.get(); |
| 146 | if (mIsThumbnail) { |
| 147 | mAnimation.getTransformation(currentPlayTime, tmp.mTransformation); |
| 148 | t.setMatrix(leash, tmp.mTransformation.getMatrix(), tmp.mFloats); |
| 149 | t.setAlpha(leash, tmp.mTransformation.getAlpha()); |
| 150 | } else { |
| 151 | mAnimation.getTransformation(currentPlayTime, tmp.mTransformation); |
| 152 | final Matrix matrix = tmp.mTransformation.getMatrix(); |
| 153 | t.setMatrix(leash, matrix, tmp.mFloats); |
| 154 | |
| 155 | // The following applies an inverse scale to the clip-rect so that it crops "after" the |
| 156 | // scale instead of before. |
| 157 | tmp.mVecs[1] = tmp.mVecs[2] = 0; |
| 158 | tmp.mVecs[0] = tmp.mVecs[3] = 1; |
| 159 | matrix.mapVectors(tmp.mVecs); |
| 160 | tmp.mVecs[0] = 1.f / tmp.mVecs[0]; |
| 161 | tmp.mVecs[3] = 1.f / tmp.mVecs[3]; |
| 162 | final Rect clipRect = tmp.mTransformation.getClipRect(); |
| 163 | mTmpRect.left = (int) (clipRect.left * tmp.mVecs[0] + 0.5f); |
| 164 | mTmpRect.right = (int) (clipRect.right * tmp.mVecs[0] + 0.5f); |
| 165 | mTmpRect.top = (int) (clipRect.top * tmp.mVecs[3] + 0.5f); |
| 166 | mTmpRect.bottom = (int) (clipRect.bottom * tmp.mVecs[3] + 0.5f); |
| 167 | t.setWindowCrop(leash, mTmpRect); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | @Override |
| 172 | public long calculateStatusBarTransitionStartTime() { |
| 173 | long uptime = SystemClock.uptimeMillis(); |
| 174 | return Math.max(uptime, uptime + ((long) (((float) mAnimation.getDuration()) * 0.99f)) |
| 175 | - STATUS_BAR_TRANSITION_DURATION); |
| 176 | } |
| 177 | |
| 178 | @Override |
| 179 | public boolean canSkipFirstFrame() { |
| 180 | return false; |
| 181 | } |
| 182 | |
| 183 | @Override |
| 184 | public boolean needsEarlyWakeup() { |
| 185 | return mIsAppAnimation; |
| 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public void dump(PrintWriter pw, String prefix) { |
| 190 | pw.print(prefix); pw.println(mAnimation.getDuration()); |
| 191 | } |
| 192 | |
| 193 | @Override |
| 194 | public void writeToProtoInner(ProtoOutputStream proto) { |
| 195 | final long token = proto.start(WINDOW); |
| 196 | proto.write(ANIMATION, mAnimation.toString()); |
| 197 | proto.end(token); |
| 198 | } |
| 199 | |
| 200 | private static class TmpValues { |
| 201 | final Transformation mTransformation = new Transformation(); |
| 202 | final float[] mFloats = new float[9]; |
| 203 | final float[] mVecs = new float[4]; |
| 204 | } |
| 205 | } |