Lakshmi Narayana Kalavala | 25fe12c | 2019-12-11 20:44:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2018 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #pragma once |
| 18 | #include <drm/msm_drm.h> |
| 19 | #include <drm/msm_drm_pp.h> |
| 20 | #include <sys/types.h> |
| 21 | #include <unistd.h> |
| 22 | #include <utils/Timers.h> |
| 23 | #include <xf86drm.h> |
| 24 | #include <xf86drmMode.h> |
| 25 | #include <array> |
| 26 | #include <deque> |
| 27 | #include <memory> |
| 28 | #include <mutex> |
| 29 | #include <tuple> |
| 30 | |
| 31 | namespace histogram { |
| 32 | |
| 33 | struct TimeKeeper { |
| 34 | virtual nsecs_t current_time() const = 0; |
| 35 | virtual ~TimeKeeper() = default; |
| 36 | |
| 37 | protected: |
| 38 | TimeKeeper() = default; |
| 39 | TimeKeeper &operator=(TimeKeeper const &) = delete; |
| 40 | TimeKeeper(TimeKeeper const &) = delete; |
| 41 | }; |
| 42 | |
| 43 | struct DefaultTimeKeeper final : TimeKeeper { |
| 44 | nsecs_t current_time() const final; |
| 45 | }; |
| 46 | |
| 47 | class Ringbuffer { |
| 48 | public: |
| 49 | static std::unique_ptr<Ringbuffer> create(size_t ringbuffer_size, std::unique_ptr<TimeKeeper> tk); |
| 50 | void insert(drm_msm_hist const &frame); |
| 51 | bool resize(size_t ringbuffer_size); |
| 52 | |
| 53 | using Sample = std::tuple<uint64_t /* numFrames */, std::array<uint64_t, HIST_V_SIZE> /* bins */>; |
| 54 | Sample collect_cumulative() const; |
| 55 | Sample collect_ringbuffer_all() const; |
| 56 | Sample collect_after(nsecs_t timestamp) const; |
| 57 | Sample collect_max(uint32_t max_frames) const; |
| 58 | Sample collect_max_after(nsecs_t timestamp, uint32_t max_frames) const; |
| 59 | ~Ringbuffer() = default; |
| 60 | |
| 61 | private: |
| 62 | Ringbuffer(size_t ringbuffer_size, std::unique_ptr<TimeKeeper> tk); |
| 63 | Ringbuffer(Ringbuffer const &) = delete; |
| 64 | Ringbuffer &operator=(Ringbuffer const &) = delete; |
| 65 | |
| 66 | Sample collect_max(uint32_t max_frames, std::unique_lock<std::mutex> const &) const; |
| 67 | Sample collect_max_after(nsecs_t timestamp, uint32_t max_frames, |
| 68 | std::unique_lock<std::mutex> const &) const; |
| 69 | void update_cumulative(nsecs_t now, uint64_t &count, |
| 70 | std::array<uint64_t, HIST_V_SIZE> &bins) const; |
| 71 | |
| 72 | std::mutex mutable mutex; |
| 73 | struct HistogramEntry { |
| 74 | drm_msm_hist histogram; |
| 75 | nsecs_t start_timestamp; |
| 76 | nsecs_t end_timestamp; |
| 77 | }; |
| 78 | std::deque<HistogramEntry> ringbuffer; |
| 79 | size_t rb_max_size; |
| 80 | std::unique_ptr<TimeKeeper> const timekeeper; |
| 81 | |
| 82 | uint64_t cumulative_frame_count; |
| 83 | std::array<uint64_t, HIST_V_SIZE> cumulative_bins; |
| 84 | }; |
| 85 | |
| 86 | } // namespace histogram |