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-rw-r--r--src/core/perf_stats.cpp20
1 files changed, 11 insertions, 9 deletions
diff --git a/src/core/perf_stats.cpp b/src/core/perf_stats.cpp
index 29339ead7..b899ac884 100644
--- a/src/core/perf_stats.cpp
+++ b/src/core/perf_stats.cpp
@@ -74,15 +74,16 @@ void PerfStats::EndGameFrame() {
game_frames += 1;
}
-double PerfStats::GetMeanFrametime() {
+double PerfStats::GetMeanFrametime() const {
std::lock_guard lock{object_mutex};
if (current_index <= IgnoreFrames) {
return 0;
}
+
const double sum = std::accumulate(perf_history.begin() + IgnoreFrames,
perf_history.begin() + current_index, 0.0);
- return sum / (current_index - IgnoreFrames);
+ return sum / static_cast<double>(current_index - IgnoreFrames);
}
PerfStatsResults PerfStats::GetAndResetStats(microseconds current_system_time_us) {
@@ -94,12 +95,13 @@ PerfStatsResults PerfStats::GetAndResetStats(microseconds current_system_time_us
const auto system_us_per_second = (current_system_time_us - reset_point_system_us) / interval;
- PerfStatsResults results{};
- results.system_fps = static_cast<double>(system_frames) / interval;
- results.game_fps = static_cast<double>(game_frames) / interval;
- results.frametime = duration_cast<DoubleSecs>(accumulated_frametime).count() /
- static_cast<double>(system_frames);
- results.emulation_speed = system_us_per_second.count() / 1'000'000.0;
+ const PerfStatsResults results{
+ .system_fps = static_cast<double>(system_frames) / interval,
+ .game_fps = static_cast<double>(game_frames) / interval,
+ .frametime = duration_cast<DoubleSecs>(accumulated_frametime).count() /
+ static_cast<double>(system_frames),
+ .emulation_speed = system_us_per_second.count() / 1'000'000.0,
+ };
// Reset counters
reset_point = now;
@@ -111,7 +113,7 @@ PerfStatsResults PerfStats::GetAndResetStats(microseconds current_system_time_us
return results;
}
-double PerfStats::GetLastFrameTimeScale() {
+double PerfStats::GetLastFrameTimeScale() const {
std::lock_guard lock{object_mutex};
constexpr double FRAME_LENGTH = 1.0 / 60;