Files
frameworks_base/services/java/com/android/server/display/HeadlessDisplayAdapter.java
Jeff Brown 77aebfdbae Add new Display API for secure video capabilities.
Added a new API to determine whether the display supports
protected buffers so that an application can choose a different
content stream or change how it decodes the content so
that it will be viewable on the display.

At present, wifi display does not fully support protected
buffers although this may be enhanced in the future.

Bug: 6986623
Change-Id: If53a53d72b0ec92753cc4b29f99fcb131e00449b
2012-10-02 16:25:10 -07:00

71 lines
2.5 KiB
Java

/*
* Copyright (C) 2012 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.display;
import android.content.Context;
import android.os.Handler;
import android.util.DisplayMetrics;
/**
* Provides a fake default display for headless systems.
* <p>
* Display adapters are guarded by the {@link DisplayManagerService.SyncRoot} lock.
* </p>
*/
final class HeadlessDisplayAdapter extends DisplayAdapter {
private static final String TAG = "HeadlessDisplayAdapter";
public HeadlessDisplayAdapter(DisplayManagerService.SyncRoot syncRoot,
Context context, Handler handler, Listener listener) {
super(syncRoot, context, handler, listener, TAG);
}
@Override
public void registerLocked() {
super.registerLocked();
sendDisplayDeviceEventLocked(new HeadlessDisplayDevice(), DISPLAY_DEVICE_EVENT_ADDED);
}
private final class HeadlessDisplayDevice extends DisplayDevice {
private DisplayDeviceInfo mInfo;
public HeadlessDisplayDevice() {
super(HeadlessDisplayAdapter.this, null);
}
@Override
public DisplayDeviceInfo getDisplayDeviceInfoLocked() {
if (mInfo == null) {
mInfo = new DisplayDeviceInfo();
mInfo.name = getContext().getResources().getString(
com.android.internal.R.string.display_manager_built_in_display_name);
mInfo.width = 640;
mInfo.height = 480;
mInfo.refreshRate = 60;
mInfo.densityDpi = DisplayMetrics.DENSITY_DEFAULT;
mInfo.xDpi = 160;
mInfo.yDpi = 160;
mInfo.flags = DisplayDeviceInfo.FLAG_DEFAULT_DISPLAY
| DisplayDeviceInfo.FLAG_SECURE
| DisplayDeviceInfo.FLAG_SUPPORTS_PROTECTED_BUFFERS;
mInfo.touch = DisplayDeviceInfo.TOUCH_NONE;
}
return mInfo;
}
}
}