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- #include "util.h"
-
- #include <array>
-
- namespace Swan {
-
- class PerfCounter {
- public:
- template<typename T = double, size_t size = 64>
- class Counter {
- public:
- void count(T val) {
- buf_[idx_] = val;
- idx_ = (idx_ + 1) % size;
- }
-
- // Fill a buffer with data, in the order they were written
- template<typename DestT = T>
- void fill(std::array<DestT, size> &buf) {
- size_t r = idx_;
- size_t w = 0;
- do {
- buf[w++] = (DestT)buf_[r];
- r = (r + 1) % size;
- } while (r != idx_);
- }
-
- private:
- T buf_[size] = {};
- size_t idx_ = 0;
- };
-
- void render();
-
- void countTotalTime(double secs) { total_time_.count(secs); }
- void countFrameTime(double secs) { frame_time_.count(secs); }
- void countGameUpdate(double secs) { game_update_.count(secs); }
- void countGameTick(double secs) { game_tick_.count(secs); }
- void countGameDraw(double secs) { game_draw_.count(secs); }
- void countGameUpdatesPerFrame(double count) { game_updates_per_frame_.count(count); }
- void countRenderPresent(double secs) { render_present_.count(secs); }
- void countMemoryUsage(double bytes) { memory_usage_.count(bytes); }
-
- private:
- Counter<> total_time_;
- Counter<> frame_time_;
- Counter<> game_update_;
- Counter<> game_tick_;
- Counter<> game_draw_;
- Counter<> game_updates_per_frame_;
- Counter<> render_present_;
- Counter<> memory_usage_;
- };
-
- }
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