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87 lines
2.7 KiB
87 lines
2.7 KiB
/*
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* Copyright (C) 2018 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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#pragma once
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#include <drm/msm_drm.h>
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#include <drm/msm_drm_pp.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <utils/Timers.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include <array>
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#include <deque>
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#include <memory>
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#include <mutex>
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#include <tuple>
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namespace histogram {
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struct TimeKeeper {
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virtual nsecs_t current_time() const = 0;
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virtual ~TimeKeeper() = default;
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protected:
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TimeKeeper() = default;
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TimeKeeper &operator=(TimeKeeper const &) = delete;
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TimeKeeper(TimeKeeper const &) = delete;
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};
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struct DefaultTimeKeeper final : TimeKeeper {
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nsecs_t current_time() const final;
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};
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class Ringbuffer {
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public:
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static std::unique_ptr<Ringbuffer> create(size_t ringbuffer_size, std::unique_ptr<TimeKeeper> tk);
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void insert(drm_msm_hist const &frame);
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bool resize(size_t ringbuffer_size);
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using Sample = std::tuple<uint64_t /* numFrames */, std::array<uint64_t, HIST_V_SIZE> /* bins */>;
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Sample collect_cumulative() const;
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Sample collect_ringbuffer_all() const;
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Sample collect_after(nsecs_t timestamp) const;
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Sample collect_max(uint32_t max_frames) const;
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Sample collect_max_after(nsecs_t timestamp, uint32_t max_frames) const;
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~Ringbuffer() = default;
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private:
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Ringbuffer(size_t ringbuffer_size, std::unique_ptr<TimeKeeper> tk);
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Ringbuffer(Ringbuffer const &) = delete;
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Ringbuffer &operator=(Ringbuffer const &) = delete;
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Sample collect_max(uint32_t max_frames, std::unique_lock<std::mutex> const &) const;
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Sample collect_max_after(nsecs_t timestamp, uint32_t max_frames,
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std::unique_lock<std::mutex> const &) const;
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void update_cumulative(nsecs_t now, uint64_t &count,
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std::array<uint64_t, HIST_V_SIZE> &bins) const;
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std::mutex mutable mutex;
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struct HistogramEntry {
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drm_msm_hist histogram;
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nsecs_t start_timestamp;
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nsecs_t end_timestamp;
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};
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std::deque<HistogramEntry> ringbuffer;
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size_t rb_max_size;
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std::unique_ptr<TimeKeeper> const timekeeper;
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uint64_t cumulative_frame_count;
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std::array<uint64_t, HIST_V_SIZE> cumulative_bins;
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};
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} // namespace histogram
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