| // Copyright 2019 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_DAWN_TESTS_PERF_TESTS_DAWNPERFTESTPLATFORM_H_ |
| #define SRC_DAWN_TESTS_PERF_TESTS_DAWNPERFTESTPLATFORM_H_ |
| |
| #include <memory> |
| #include <mutex> |
| #include <string> |
| #include <thread> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "dawn/platform/DawnPlatform.h" |
| |
| namespace dawn { |
| namespace utils { |
| class Timer; |
| } |
| |
| class DawnPerfTestPlatform : public platform::Platform { |
| public: |
| // These are trace events according to Google's "Trace Event Format". |
| // See https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU |
| // Only a subset of the properties are implemented. |
| struct TraceEvent final { |
| TraceEvent() {} |
| TraceEvent(char phaseIn, |
| platform::TraceCategory categoryIn, |
| const char* nameIn, |
| uint64_t idIn, |
| double timestampIn) |
| : phase(phaseIn), |
| category(categoryIn), |
| name(nameIn), |
| id(idIn), |
| timestamp(timestampIn) {} |
| |
| char phase = 0; |
| platform::TraceCategory category; |
| const char* name = nullptr; |
| uint64_t id = 0; |
| std::string threadId; |
| double timestamp = 0; |
| }; |
| |
| DawnPerfTestPlatform(); |
| ~DawnPerfTestPlatform() override; |
| |
| void EnableTraceEventRecording(bool enable); |
| std::vector<TraceEvent> AcquireTraceEventBuffer(); |
| |
| private: |
| const unsigned char* GetTraceCategoryEnabledFlag(platform::TraceCategory category) override; |
| |
| double MonotonicallyIncreasingTime() override; |
| |
| std::vector<TraceEvent>* GetLocalTraceEventBuffer(); |
| |
| uint64_t AddTraceEvent(char phase, |
| const unsigned char* categoryGroupEnabled, |
| const char* name, |
| uint64_t id, |
| double timestamp, |
| int numArgs, |
| const char** argNames, |
| const unsigned char* argTypes, |
| const uint64_t* argValues, |
| unsigned char flags) override; |
| |
| bool mRecordTraceEvents = false; |
| std::unique_ptr<utils::Timer> mTimer; |
| |
| // Trace event record. |
| // Each uses their own trace event buffer, but the PerfTestPlatform owns all of them in |
| // this map. The map stores all of them so we can iterate through them and flush when |
| // AcquireTraceEventBuffer is called. |
| std::unordered_map<std::thread::id, std::unique_ptr<std::vector<TraceEvent>>> |
| mTraceEventBuffers; |
| std::mutex mTraceEventBufferMapMutex; |
| }; |
| |
| } // namespace dawn |
| |
| #endif // SRC_DAWN_TESTS_PERF_TESTS_DAWNPERFTESTPLATFORM_H_ |