136 lines
3.8 KiB
C++
136 lines
3.8 KiB
C++
/*
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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 "LayerTracing"
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#include <SurfaceFlinger.h>
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#include <android-base/stringprintf.h>
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#include <log/log.h>
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#include <utils/SystemClock.h>
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#include <utils/Trace.h>
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#include "LayerTracing.h"
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#include "RingBuffer.h"
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namespace android {
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LayerTracing::LayerTracing(SurfaceFlinger& flinger) : mFlinger(flinger) {
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mBuffer = std::make_unique<RingBuffer<LayersTraceFileProto, LayersTraceProto>>();
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}
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LayerTracing::~LayerTracing() = default;
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bool LayerTracing::enable() {
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std::scoped_lock lock(mTraceLock);
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if (mEnabled) {
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return false;
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}
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mBuffer->setSize(mBufferSizeInBytes);
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mEnabled = true;
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return true;
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}
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bool LayerTracing::disable(std::string filename) {
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std::scoped_lock lock(mTraceLock);
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if (!mEnabled) {
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return false;
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}
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mEnabled = false;
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LayersTraceFileProto fileProto = createTraceFileProto();
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mBuffer->writeToFile(fileProto, filename);
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mBuffer->reset();
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return true;
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}
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bool LayerTracing::isEnabled() const {
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std::scoped_lock lock(mTraceLock);
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return mEnabled;
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}
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status_t LayerTracing::writeToFile() {
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std::scoped_lock lock(mTraceLock);
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if (!mEnabled) {
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return STATUS_OK;
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}
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LayersTraceFileProto fileProto = createTraceFileProto();
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return mBuffer->writeToFile(fileProto, FILE_NAME);
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}
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void LayerTracing::setTraceFlags(uint32_t flags) {
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std::scoped_lock lock(mTraceLock);
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mFlags = flags;
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}
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void LayerTracing::setBufferSize(size_t bufferSizeInBytes) {
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std::scoped_lock lock(mTraceLock);
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mBufferSizeInBytes = bufferSizeInBytes;
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}
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bool LayerTracing::flagIsSet(uint32_t flags) const {
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return (mFlags & flags) == flags;
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}
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LayersTraceFileProto LayerTracing::createTraceFileProto() const {
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LayersTraceFileProto fileProto;
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fileProto.set_magic_number(uint64_t(LayersTraceFileProto_MagicNumber_MAGIC_NUMBER_H) << 32 |
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LayersTraceFileProto_MagicNumber_MAGIC_NUMBER_L);
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return fileProto;
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}
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void LayerTracing::dump(std::string& result) const {
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std::scoped_lock lock(mTraceLock);
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base::StringAppendF(&result, "Tracing state: %s\n", mEnabled ? "enabled" : "disabled");
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mBuffer->dump(result);
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}
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void LayerTracing::notify(bool visibleRegionDirty, int64_t time) {
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std::scoped_lock lock(mTraceLock);
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if (!mEnabled) {
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return;
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}
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if (!visibleRegionDirty && !flagIsSet(LayerTracing::TRACE_BUFFERS)) {
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return;
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}
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ATRACE_CALL();
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LayersTraceProto entry;
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entry.set_elapsed_realtime_nanos(time);
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const char* where = visibleRegionDirty ? "visibleRegionsDirty" : "bufferLatched";
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entry.set_where(where);
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LayersProto layers(mFlinger.dumpDrawingStateProto(mFlags));
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if (flagIsSet(LayerTracing::TRACE_EXTRA)) {
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mFlinger.dumpOffscreenLayersProto(layers);
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}
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entry.mutable_layers()->Swap(&layers);
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if (flagIsSet(LayerTracing::TRACE_HWC)) {
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std::string hwcDump;
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mFlinger.dumpHwc(hwcDump);
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entry.set_hwc_blob(hwcDump);
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}
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if (!flagIsSet(LayerTracing::TRACE_COMPOSITION)) {
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entry.set_excludes_composition_state(true);
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}
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mFlinger.dumpDisplayProto(entry);
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mBuffer->emplace(std::move(entry));
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}
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} // namespace android
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