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Merge "Handle hotplug events as described instead of rescanning"

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This commit is contained in:
Jesse Hall
2013-02-08 01:29:03 +00:00
committed by Gerrit Code Review
parent 9434c112d1 190fd9aeca
commit fd1c028e34
1 changed files with 34 additions and 23 deletions
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57
services/java/com/android/server/display/LocalDisplayAdapter.java
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@@ -60,31 +60,38 @@ final class LocalDisplayAdapter extends DisplayAdapter {
super.registerLocked();
mHotplugReceiver = new HotplugDisplayEventReceiver(getHandler().getLooper());
scanDisplaysLocked();
for (int builtInDisplayId : BUILT_IN_DISPLAY_IDS_TO_SCAN) {
tryConnectDisplayLocked(builtInDisplayId);
}
}
private void scanDisplaysLocked() {
for (int builtInDisplayId : BUILT_IN_DISPLAY_IDS_TO_SCAN) {
IBinder displayToken = Surface.getBuiltInDisplay(builtInDisplayId);
if (displayToken != null && Surface.getDisplayInfo(displayToken, mTempPhys)) {
LocalDisplayDevice device = mDevices.get(builtInDisplayId);
if (device == null) {
// Display was added.
device = new LocalDisplayDevice(displayToken, builtInDisplayId, mTempPhys);
mDevices.put(builtInDisplayId, device);
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_ADDED);
} else if (device.updatePhysicalDisplayInfoLocked(mTempPhys)) {
// Display properties changed.
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_CHANGED);
}
} else {
LocalDisplayDevice device = mDevices.get(builtInDisplayId);
if (device != null) {
// Display was removed.
mDevices.remove(builtInDisplayId);
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_REMOVED);
}
private void tryConnectDisplayLocked(int builtInDisplayId) {
IBinder displayToken = Surface.getBuiltInDisplay(builtInDisplayId);
if (displayToken != null && Surface.getDisplayInfo(displayToken, mTempPhys)) {
LocalDisplayDevice device = mDevices.get(builtInDisplayId);
if (device == null) {
// Display was added.
device = new LocalDisplayDevice(displayToken, builtInDisplayId, mTempPhys);
mDevices.put(builtInDisplayId, device);
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_ADDED);
} else if (device.updatePhysicalDisplayInfoLocked(mTempPhys)) {
// Display properties changed.
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_CHANGED);
}
} else {
// The display is no longer available. Ignore the attempt to add it.
// If it was connected but has already been disconnected, we'll get a
// disconnect event that will remove it from mDevices.
}
}
private void tryDisconnectDisplayLocked(int builtInDisplayId) {
LocalDisplayDevice device = mDevices.get(builtInDisplayId);
if (device != null) {
// Display was removed.
mDevices.remove(builtInDisplayId);
sendDisplayDeviceEventLocked(device, DISPLAY_DEVICE_EVENT_REMOVED);
}
}
@@ -191,7 +198,11 @@ final class LocalDisplayAdapter extends DisplayAdapter {
@Override
public void onHotplug(long timestampNanos, int builtInDisplayId, boolean connected) {
synchronized (getSyncRoot()) {
scanDisplaysLocked();
if (connected) {
tryConnectDisplayLocked(builtInDisplayId);
} else {
tryDisconnectDisplayLocked(builtInDisplayId);
}
}
}
}