87 lines
3.6 KiB
Java
87 lines
3.6 KiB
Java
/*
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* Copyright (C) 2023 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.internal.jank;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__UNKNOWN_REFRESH_RATE;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__VARIABLE_REFRESH_RATE;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_30_HZ;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_60_HZ;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_90_HZ;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_120_HZ;
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import static com.android.internal.util.FrameworkStatsLog.UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_240_HZ;
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import android.annotation.IntDef;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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/**
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* Display refresh rate related functionality.
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* @hide
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*/
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public class DisplayRefreshRate {
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public static final int UNKNOWN_REFRESH_RATE =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__UNKNOWN_REFRESH_RATE;
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public static final int VARIABLE_REFRESH_RATE =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__VARIABLE_REFRESH_RATE;
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public static final int REFRESH_RATE_30_HZ =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_30_HZ;
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public static final int REFRESH_RATE_60_HZ =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_60_HZ;
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public static final int REFRESH_RATE_90_HZ =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_90_HZ;
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public static final int REFRESH_RATE_120_HZ =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_120_HZ;
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public static final int REFRESH_RATE_240_HZ =
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UIINTERACTION_FRAME_INFO_REPORTED__DISPLAY_REFRESH_RATE__RR_240_HZ;
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/** @hide */
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@IntDef({
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UNKNOWN_REFRESH_RATE,
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VARIABLE_REFRESH_RATE,
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REFRESH_RATE_30_HZ,
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REFRESH_RATE_60_HZ,
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REFRESH_RATE_90_HZ,
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REFRESH_RATE_120_HZ,
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REFRESH_RATE_240_HZ,
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})
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@Retention(RetentionPolicy.SOURCE)
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public @interface RefreshRate {
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}
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private DisplayRefreshRate() {
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}
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/**
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* Computes the display refresh rate based off the frame interval.
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*/
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@RefreshRate
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public static int getRefreshRate(long frameIntervalNs) {
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long rate = Math.round(1e9 / frameIntervalNs);
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if (rate < 50) {
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return REFRESH_RATE_30_HZ;
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} else if (rate < 80) {
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return REFRESH_RATE_60_HZ;
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} else if (rate < 110) {
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return REFRESH_RATE_90_HZ;
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} else if (rate < 180) {
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return REFRESH_RATE_120_HZ;
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} else {
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return REFRESH_RATE_240_HZ;
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}
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}
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}
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