4ed8fe75e1
Added more complete support for logical displays with support for mirroring, rotation and scaling. Improved the overlay display adapter's touch interactions. A big change here is that the display manager no longer relies on a single-threaded model to maintain its synchronization invariants. Unfortunately we had to change this so as to play nice with the fact that the window manager wants to own the surface flinger transaction around display and surface manipulations. As a result, the display manager has to be able to update displays from the context of any thread. It would be nice to make this process more cooperative. There are already several components competing to perform surface flinger transactions including the window manager, display manager, electron beam, overlay display window, and mouse pointer. They are not manipulating the same surfaces but they can collide with one another when they make global changes to the displays. Change-Id: I04f448594241f2004f6f3d1a81ccd12c566bf296
120 lines
3.6 KiB
Java
120 lines
3.6 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.display;
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import libcore.util.Objects;
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/**
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* Describes the characteristics of a physical display device.
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*/
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final class DisplayDeviceInfo {
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/**
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* Flag: Indicates that this display device should be considered the default display
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* device of the system.
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*/
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public static final int FLAG_DEFAULT_DISPLAY = 1 << 0;
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/**
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* Flag: Indicates that this display device can show secure surfaces.
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*/
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public static final int FLAG_SECURE = 1 << 1;
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/**
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* Flag: Indicates that this display device can rotate to show contents in a
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* different orientation. Otherwise the rotation is assumed to be fixed in the
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* natural orientation and the display manager should transform the content to fit.
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*/
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public static final int FLAG_SUPPORTS_ROTATION = 1 << 2;
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/**
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* Gets the name of the display device, which may be derived from
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* EDID or other sources. The name may be displayed to the user.
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*/
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public String name;
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/**
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* The width of the display in its natural orientation, in pixels.
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* This value is not affected by display rotation.
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*/
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public int width;
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/**
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* The height of the display in its natural orientation, in pixels.
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* This value is not affected by display rotation.
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*/
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public int height;
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public float refreshRate;
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public int densityDpi;
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public float xDpi;
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public float yDpi;
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public int flags;
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@Override
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public boolean equals(Object o) {
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return o instanceof DisplayDeviceInfo && equals((DisplayDeviceInfo)o);
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}
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public boolean equals(DisplayDeviceInfo other) {
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return other != null
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&& Objects.equal(name, other.name)
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&& width == other.width
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&& height == other.height
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&& refreshRate == other.refreshRate
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&& densityDpi == other.densityDpi
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&& xDpi == other.xDpi
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&& yDpi == other.yDpi
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&& flags == other.flags;
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}
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@Override
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public int hashCode() {
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return 0; // don't care
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}
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public void copyFrom(DisplayDeviceInfo other) {
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name = other.name;
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width = other.width;
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height = other.height;
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refreshRate = other.refreshRate;
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densityDpi = other.densityDpi;
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xDpi = other.xDpi;
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yDpi = other.yDpi;
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flags = other.flags;
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}
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// For debugging purposes
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@Override
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public String toString() {
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return "DisplayDeviceInfo{\"" + name + "\": " + width + " x " + height + ", " + refreshRate + " fps, "
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+ "density " + densityDpi + ", " + xDpi + " x " + yDpi + " dpi"
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+ flagsToString(flags) + "}";
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}
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private static String flagsToString(int flags) {
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StringBuilder msg = new StringBuilder();
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if ((flags & FLAG_DEFAULT_DISPLAY) != 0) {
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msg.append(", FLAG_DEFAULT_DISPLAY");
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}
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if ((flags & FLAG_SECURE) != 0) {
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msg.append(", FLAG_SECURE");
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}
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return msg.toString();
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}
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}
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