blob: e714064342193fd462ca79c800e6b32489588874 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
/*
* 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.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.hardware.display.IDisplayManager;
import android.os.Binder;
import android.os.SystemProperties;
import android.view.Display;
import android.view.DisplayInfo;
import android.view.Surface;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.ArrayList;
/**
* Manages the properties, media routing and power state of attached displays.
* <p>
* The display manager service does not own or directly control the displays.
* Instead, other components in the system register their display adapters with the
* display manager service which acts as a central controller.
* </p>
*/
public final class DisplayManagerService extends IDisplayManager.Stub {
private static final String TAG = "DisplayManagerService";
private static final String SYSTEM_HEADLESS = "ro.config.headless";
private final Object mLock = new Object();
private Context mContext;
private final boolean mHeadless;
private final ArrayList<DisplayAdapter> mDisplayAdapters = new ArrayList<DisplayAdapter>();
// TODO: represent this as a map between logical and physical devices
private DisplayInfo mDefaultDisplayInfo;
private DisplayDevice mDefaultDisplayDevice;
private DisplayDeviceInfo mDefaultDisplayDeviceInfo;
public DisplayManagerService() {
mHeadless = SystemProperties.get(SYSTEM_HEADLESS).equals("1");
registerDisplayAdapters();
initializeDefaultDisplay();
}
public void setContext(Context context) {
mContext = context;
}
// FIXME: this isn't the right API for the long term
public void setDefaultDisplayInfo(DisplayInfo info) {
synchronized (mLock) {
mDefaultDisplayInfo.copyFrom(info);
}
}
// FIXME: this isn't the right API for the long term
public void getDefaultExternalDisplayDeviceInfo(DisplayDeviceInfo info) {
// hardcoded assuming 720p touch screen plugged into HDMI and USB
// need to redesign this
info.width = 1280;
info.height = 720;
}
public boolean isHeadless() {
return mHeadless;
}
@Override // Binder call
public boolean getDisplayInfo(int displayId, DisplayInfo outInfo) {
synchronized (mLock) {
if (displayId == Display.DEFAULT_DISPLAY) {
outInfo.copyFrom(mDefaultDisplayInfo);
return true;
}
return false;
}
}
@Override // Binder call
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext == null
|| mContext.checkCallingOrSelfPermission(Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump DisplayManager from from pid="
+ Binder.getCallingPid() + ", uid=" + Binder.getCallingUid());
return;
}
pw.println("DISPLAY MANAGER (dumpsys display)\n");
pw.println("Headless: " + mHeadless);
DisplayDeviceInfo info = new DisplayDeviceInfo();
for (DisplayAdapter adapter : mDisplayAdapters) {
pw.println("Displays for adapter " + adapter.getName());
for (DisplayDevice device : adapter.getDisplayDevices()) {
device.getInfo(info);
pw.print(" ");
pw.println(info);
}
}
}
private void registerDisplayAdapters() {
if (mHeadless) {
registerDisplayAdapter(new HeadlessDisplayAdapter());
} else {
registerDisplayAdapter(new SurfaceFlingerDisplayAdapter());
}
}
private void registerDisplayAdapter(DisplayAdapter adapter) {
// TODO: do this dynamically
mDisplayAdapters.add(adapter);
mDefaultDisplayDevice = adapter.getDisplayDevices()[0];
mDefaultDisplayDeviceInfo = new DisplayDeviceInfo();
mDefaultDisplayDevice.getInfo(mDefaultDisplayDeviceInfo);
}
private void initializeDefaultDisplay() {
// Bootstrap the default logical display using the default physical display.
mDefaultDisplayInfo = new DisplayInfo();
mDefaultDisplayInfo.appWidth = mDefaultDisplayDeviceInfo.width;
mDefaultDisplayInfo.appHeight = mDefaultDisplayDeviceInfo.height;
mDefaultDisplayInfo.logicalWidth = mDefaultDisplayDeviceInfo.width;
mDefaultDisplayInfo.logicalHeight = mDefaultDisplayDeviceInfo.height;
mDefaultDisplayInfo.rotation = Surface.ROTATION_0;
mDefaultDisplayInfo.refreshRate = mDefaultDisplayDeviceInfo.refreshRate;
mDefaultDisplayInfo.logicalDensityDpi = mDefaultDisplayDeviceInfo.densityDpi;
mDefaultDisplayInfo.physicalXDpi = mDefaultDisplayDeviceInfo.xDpi;
mDefaultDisplayInfo.physicalYDpi = mDefaultDisplayDeviceInfo.yDpi;
mDefaultDisplayInfo.smallestNominalAppWidth = mDefaultDisplayDeviceInfo.width;
mDefaultDisplayInfo.smallestNominalAppHeight = mDefaultDisplayDeviceInfo.height;
mDefaultDisplayInfo.largestNominalAppWidth = mDefaultDisplayDeviceInfo.width;
mDefaultDisplayInfo.largestNominalAppHeight = mDefaultDisplayDeviceInfo.height;
}
}
|
