10f328c580
- Use GPU finish time as well as actual deadline to determine jank rate. - Use dynamic interval to adjust for 60/90hz switching - Move frame metrics reporting into JankTracker to adjust the deadline communicated to the app when in stuffing scenario. - Adjust double-stuffing detection to be a bit more readable. Test: GraphicsStatsValidationTest.java Test: adb shell dumpsys gfxinfo Test: FrameMetricsListenerTest Test: Log output of FrameMetricsObserver Bug: 169858044 Change-Id: I3a6b8ed163e2cf9cf2b67667110340ebe35f98a1
63 lines
2.1 KiB
C++
63 lines
2.1 KiB
C++
/*
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* Copyright (C) 2014 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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#include "TimeLord.h"
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#include <limits>
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namespace android {
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namespace uirenderer {
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namespace renderthread {
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TimeLord::TimeLord() : mFrameIntervalNanos(milliseconds_to_nanoseconds(16)),
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mFrameTimeNanos(0),
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mFrameIntendedTimeNanos(0),
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mFrameVsyncId(-1),
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mFrameDeadline(std::numeric_limits<int64_t>::max()){}
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bool TimeLord::vsyncReceived(nsecs_t vsync, nsecs_t intendedVsync, int64_t vsyncId,
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int64_t frameDeadline, nsecs_t frameInterval) {
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if (intendedVsync > mFrameIntendedTimeNanos) {
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mFrameIntendedTimeNanos = intendedVsync;
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mFrameVsyncId = vsyncId;
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mFrameDeadline = frameDeadline;
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if (frameInterval > 0) {
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mFrameIntervalNanos = frameInterval;
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}
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}
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if (vsync > mFrameTimeNanos) {
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mFrameTimeNanos = vsync;
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return true;
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}
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return false;
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}
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nsecs_t TimeLord::computeFrameTimeNanos() {
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// Logic copied from Choreographer.java
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nsecs_t now = systemTime(SYSTEM_TIME_MONOTONIC);
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nsecs_t jitterNanos = now - mFrameTimeNanos;
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if (jitterNanos >= mFrameIntervalNanos) {
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nsecs_t lastFrameOffset = jitterNanos % mFrameIntervalNanos;
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mFrameTimeNanos = now - lastFrameOffset;
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// mFrameVsyncId is not adjusted here as we still want to send
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// the vsync id that started this frame to the Surface Composer
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}
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return mFrameTimeNanos;
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}
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} /* namespace renderthread */
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} /* namespace uirenderer */
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} /* namespace android */
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