103 lines
3.1 KiB
C++
103 lines
3.1 KiB
C++
/*
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* Copyright 2019 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 "FrameStatisticsGL.h"
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#include <inttypes.h>
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#include <cmath>
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#include <string>
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#include "EGL.h"
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#include "SwappyCommon.h"
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#include "Trace.h"
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namespace swappy {
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FrameStatisticsGL::FrameStatisticsGL(const EGL& egl,
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const SwappyCommon& swappyCommon)
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: mEgl(egl), mSwappyCommon(swappyCommon) {
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mPendingFrames.reserve(MAX_FRAME_LAG + 1);
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}
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FrameStatisticsGL::ThisFrame FrameStatisticsGL::getThisFrame(
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EGLDisplay dpy, EGLSurface surface) {
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const TimePoint frameStartTime = std::chrono::steady_clock::now();
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// first get the next frame id
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std::pair<bool, EGLuint64KHR> nextFrameId =
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mEgl.getNextFrameId(dpy, surface);
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if (nextFrameId.first) {
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mPendingFrames.push_back(
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{dpy, surface, nextFrameId.second, frameStartTime});
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}
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if (mPendingFrames.empty()) {
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return {};
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}
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EGLFrame frame = mPendingFrames.front();
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// make sure we don't lag behind the stats too much
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if (nextFrameId.first && nextFrameId.second - frame.id > MAX_FRAME_LAG) {
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while (mPendingFrames.size() > 1)
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mPendingFrames.erase(mPendingFrames.begin());
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mFrameStatsCommon.invalidateLastFrame();
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frame = mPendingFrames.front();
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}
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std::unique_ptr<EGL::FrameTimestamps> frameStats =
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mEgl.getFrameTimestamps(frame.dpy, frame.surface, frame.id);
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if (!frameStats) {
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return {frame.startFrameTime};
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}
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mPendingFrames.erase(mPendingFrames.begin());
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return {frame.startFrameTime, std::move(frameStats)};
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}
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// called once per swap
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void FrameStatisticsGL::capture(EGLDisplay dpy, EGLSurface surface) {
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auto frame = getThisFrame(dpy, surface);
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if (!frame.stats) return;
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FrameTimings current = {
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static_cast<uint64_t>(frame.startTime.time_since_epoch().count()),
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static_cast<uint64_t>(frame.stats->requested),
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static_cast<uint64_t>(frame.stats->presented),
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static_cast<uint64_t>(frame.stats->compositionLatched -
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frame.stats->renderingCompleted)};
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mFrameStatsCommon.updateFrameStats(
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current, mSwappyCommon.getRefreshPeriod().count());
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}
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void FrameStatisticsGL::enableStats(bool enabled) {
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mFrameStatsCommon.enableStats(enabled);
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}
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SwappyStats FrameStatisticsGL::getStats() {
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return mFrameStatsCommon.getStats();
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}
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void FrameStatisticsGL::clearStats() { mFrameStatsCommon.clearStats(); }
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int32_t FrameStatisticsGL::lastLatencyRecorded() {
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return mFrameStatsCommon.lastLatencyRecorded();
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}
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} // namespace swappy
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