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139 lines
5.3 KiB
Java
139 lines
5.3 KiB
Java
package com.genymobile.scrcpy;
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import com.genymobile.scrcpy.wrappers.ServiceManager;
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import android.graphics.Point;
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import android.graphics.Rect;
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import android.os.Build;
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import android.os.RemoteException;
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import android.view.IRotationWatcher;
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import android.view.InputEvent;
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public final class Device {
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public interface RotationListener {
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void onRotationChanged(int rotation);
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}
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private final ServiceManager serviceManager = new ServiceManager();
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private ScreenInfo screenInfo;
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private RotationListener rotationListener;
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public Device(Options options) {
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screenInfo = computeScreenInfo(options.getCrop(), options.getMaxSize());
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registerRotationWatcher(new IRotationWatcher.Stub() {
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@Override
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public void onRotationChanged(int rotation) throws RemoteException {
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synchronized (Device.this) {
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screenInfo = screenInfo.withRotation(rotation);
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// notify
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if (rotationListener != null) {
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rotationListener.onRotationChanged(rotation);
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}
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}
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}
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});
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}
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public synchronized ScreenInfo getScreenInfo() {
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return screenInfo;
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}
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private ScreenInfo computeScreenInfo(Rect crop, int maxSize) {
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DisplayInfo displayInfo = serviceManager.getDisplayManager().getDisplayInfo();
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boolean rotated = (displayInfo.getRotation() & 1) != 0;
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Size deviceSize = displayInfo.getSize();
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Rect contentRect = new Rect(0, 0, deviceSize.getWidth(), deviceSize.getHeight());
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if (crop != null) {
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if (rotated) {
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// the crop (provided by the user) is expressed in the natural orientation
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crop = flipRect(crop);
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}
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if (!contentRect.intersect(crop)) {
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// intersect() changes contentRect so that it is intersected with crop
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Ln.w("Crop rectangle (" + formatCrop(crop) + ") does not intersect device screen (" + formatCrop(deviceSize.toRect()) + ")");
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contentRect = new Rect(); // empty
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}
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}
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Size videoSize = computeVideoSize(contentRect.width(), contentRect.height(), maxSize);
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return new ScreenInfo(contentRect, videoSize, rotated);
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}
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private static String formatCrop(Rect rect) {
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return rect.width() + ":" + rect.height() + ":" + rect.left + ":" + rect.top;
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}
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@SuppressWarnings("checkstyle:MagicNumber")
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private static Size computeVideoSize(int w, int h, int maxSize) {
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// Compute the video size and the padding of the content inside this video.
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// Principle:
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// - scale down the great side of the screen to maxSize (if necessary);
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// - scale down the other side so that the aspect ratio is preserved;
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// - round this value to the nearest multiple of 8 (H.264 only accepts multiples of 8)
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w &= ~7; // in case it's not a multiple of 8
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h &= ~7;
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if (maxSize > 0) {
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if (BuildConfig.DEBUG && maxSize % 8 != 0) {
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throw new AssertionError("Max size must be a multiple of 8");
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}
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boolean portrait = h > w;
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int major = portrait ? h : w;
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int minor = portrait ? w : h;
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if (major > maxSize) {
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int minorExact = minor * maxSize / major;
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// +4 to round the value to the nearest multiple of 8
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minor = (minorExact + 4) & ~7;
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major = maxSize;
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}
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w = portrait ? minor : major;
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h = portrait ? major : minor;
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}
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return new Size(w, h);
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}
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public Point getPhysicalPoint(Position position) {
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// it hides the field on purpose, to read it with a lock
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@SuppressWarnings("checkstyle:HiddenField")
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ScreenInfo screenInfo = getScreenInfo(); // read with synchronization
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Size videoSize = screenInfo.getVideoSize();
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Size clientVideoSize = position.getScreenSize();
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if (!videoSize.equals(clientVideoSize)) {
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// The client sends a click relative to a video with wrong dimensions,
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// the device may have been rotated since the event was generated, so ignore the event
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return null;
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}
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Rect contentRect = screenInfo.getContentRect();
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Point point = position.getPoint();
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int scaledX = contentRect.left + point.x * contentRect.width() / videoSize.getWidth();
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int scaledY = contentRect.top + point.y * contentRect.height() / videoSize.getHeight();
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return new Point(scaledX, scaledY);
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}
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public static String getDeviceName() {
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return Build.MODEL;
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}
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public boolean injectInputEvent(InputEvent inputEvent, int mode) {
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return serviceManager.getInputManager().injectInputEvent(inputEvent, mode);
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}
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public boolean isScreenOn() {
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return serviceManager.getPowerManager().isScreenOn();
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}
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public void registerRotationWatcher(IRotationWatcher rotationWatcher) {
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serviceManager.getWindowManager().registerRotationWatcher(rotationWatcher);
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}
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public synchronized void setRotationListener(RotationListener rotationListener) {
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this.rotationListener = rotationListener;
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}
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static Rect flipRect(Rect crop) {
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return new Rect(crop.top, crop.left, crop.bottom, crop.right);
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}
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}
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