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104 lines
3.5 KiB
104 lines
3.5 KiB
/*
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* Copyright 2021 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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#undef LOG_TAG
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#define LOG_TAG "FpsReporter"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#include <algorithm>
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#include "FpsReporter.h"
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#include "Layer.h"
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#include "SurfaceFlinger.h"
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namespace android {
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FpsReporter::FpsReporter(frametimeline::FrameTimeline& frameTimeline, SurfaceFlinger& flinger,
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std::unique_ptr<Clock> clock)
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: mFrameTimeline(frameTimeline), mFlinger(flinger), mClock(std::move(clock)) {
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LOG_ALWAYS_FATAL_IF(mClock == nullptr, "Passed in null clock when constructing FpsReporter!");
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}
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void FpsReporter::dispatchLayerFps() {
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const auto now = mClock->now();
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if (now - mLastDispatch < kMinDispatchDuration) {
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return;
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}
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std::vector<TrackedListener> localListeners;
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{
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std::scoped_lock lock(mMutex);
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if (mListeners.empty()) {
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return;
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}
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std::transform(mListeners.begin(), mListeners.end(), std::back_inserter(localListeners),
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[](const std::pair<wp<IBinder>, TrackedListener>& entry) {
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return entry.second;
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});
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}
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std::unordered_set<int32_t> seenTasks;
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std::vector<std::pair<TrackedListener, sp<Layer>>> listenersAndLayersToReport;
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mFlinger.mCurrentState.traverse([&](Layer* layer) {
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auto& currentState = layer->getDrawingState();
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if (currentState.metadata.has(METADATA_TASK_ID)) {
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int32_t taskId = currentState.metadata.getInt32(METADATA_TASK_ID, 0);
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if (seenTasks.count(taskId) == 0) {
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// localListeners is expected to be tiny
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for (TrackedListener& listener : localListeners) {
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if (listener.taskId == taskId) {
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seenTasks.insert(taskId);
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listenersAndLayersToReport.push_back({listener, sp<Layer>(layer)});
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break;
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}
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}
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}
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}
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});
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for (const auto& [listener, layer] : listenersAndLayersToReport) {
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std::unordered_set<int32_t> layerIds;
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layer->traverse(LayerVector::StateSet::Current,
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[&](Layer* layer) { layerIds.insert(layer->getSequence()); });
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listener.listener->onFpsReported(mFrameTimeline.computeFps(layerIds));
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}
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mLastDispatch = now;
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}
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void FpsReporter::binderDied(const wp<IBinder>& who) {
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std::scoped_lock lock(mMutex);
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mListeners.erase(who);
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}
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void FpsReporter::addListener(const sp<gui::IFpsListener>& listener, int32_t taskId) {
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sp<IBinder> asBinder = IInterface::asBinder(listener);
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asBinder->linkToDeath(this);
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std::lock_guard lock(mMutex);
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mListeners.emplace(wp<IBinder>(asBinder), TrackedListener{listener, taskId});
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}
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void FpsReporter::removeListener(const sp<gui::IFpsListener>& listener) {
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std::lock_guard lock(mMutex);
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mListeners.erase(wp<IBinder>(IInterface::asBinder(listener)));
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}
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} // namespace android
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