330560f53b
Auto-brightness adjustment applies a gamma correction factor between 1/3 and 3 depending on the setting. This feature is disabled for now. Change-Id: I2b300b5c455da545bea56b2bae5bc7903e30f30e
104 lines
3.9 KiB
Java
104 lines
3.9 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.power;
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import android.os.PowerManager;
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/**
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* Describes the requested power state of the display.
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*
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* This object is intended to describe the general characteristics of the
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* power state, such as whether the screen should be on or off and the current
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* brightness controls leaving the {@link DisplayPowerController} to manage the
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* details of how the transitions between states should occur. The goal is for
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* the {@link PowerManagerService} to focus on the global power state and not
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* have to micro-manage screen off animations, auto-brightness and other effects.
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*/
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final class DisplayPowerRequest {
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public static final int SCREEN_STATE_OFF = 0;
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public static final int SCREEN_STATE_DIM = 1;
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public static final int SCREEN_STATE_BRIGHT = 2;
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// The requested minimum screen power state: off, dim or bright.
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public int screenState;
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// If true, the proximity sensor overrides the screen state when an object is
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// nearby, turning it off temporarily until the object is moved away.
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public boolean useProximitySensor;
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// The desired screen brightness in the range 0 (minimum / off) to 255 (brightest).
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// The display power controller may choose to clamp the brightness.
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// When auto-brightness is enabled, this field should specify a nominal default
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// value to use while waiting for the light sensor to report enough data.
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public int screenBrightness;
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// The screen auto-brightness adjustment factor in the range -1 (dimmer) to 1 (brighter).
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public float screenAutoBrightnessAdjustment;
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// If true, enables automatic brightness control.
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public boolean useAutoBrightness;
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public DisplayPowerRequest() {
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screenState = SCREEN_STATE_BRIGHT;
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useProximitySensor = false;
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screenBrightness = PowerManager.BRIGHTNESS_ON;
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screenAutoBrightnessAdjustment = 0.0f;
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useAutoBrightness = false;
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}
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public DisplayPowerRequest(DisplayPowerRequest other) {
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copyFrom(other);
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}
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public void copyFrom(DisplayPowerRequest other) {
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screenState = other.screenState;
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useProximitySensor = other.useProximitySensor;
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screenBrightness = other.screenBrightness;
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screenAutoBrightnessAdjustment = other.screenAutoBrightnessAdjustment;
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useAutoBrightness = other.useAutoBrightness;
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}
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@Override
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public boolean equals(Object o) {
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return o instanceof DisplayPowerRequest
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&& equals((DisplayPowerRequest)o);
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}
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public boolean equals(DisplayPowerRequest other) {
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return other != null
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&& screenState == other.screenState
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&& useProximitySensor == other.useProximitySensor
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&& screenBrightness == other.screenBrightness
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&& screenAutoBrightnessAdjustment == other.screenAutoBrightnessAdjustment
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&& useAutoBrightness == other.useAutoBrightness;
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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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@Override
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public String toString() {
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return "screenState=" + screenState
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+ ", useProximitySensor=" + useProximitySensor
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+ ", screenBrightness=" + screenBrightness
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+ ", screenAutoBrightnessAdjustment=" + screenAutoBrightnessAdjustment
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+ ", useAutoBrightness=" + useAutoBrightness;
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}
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}
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