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early-access version 1929

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pineappleEA
2021-07-27 05:04:12 +02:00
parent 1d25a09b5f
commit 6ecaf46441
22 changed files with 188 additions and 95 deletions
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20
src/core/perf_stats.cpp
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@@ -127,15 +127,15 @@ double PerfStats::GetLastFrameTimeScale() const {
return duration_cast<DoubleSecs>(previous_frame_length).count() / FRAME_LENGTH;
}
void FrameLimiter::DoFrameLimiting(microseconds current_system_time_us) {
if (!Settings::values.use_frame_limit.GetValue() ||
void SpeedLimiter::DoSpeedLimiting(microseconds current_system_time_us) {
if (!Settings::values.use_speed_limit.GetValue() ||
Settings::values.use_multi_core.GetValue()) {
return;
}
auto now = Clock::now();
const double sleep_scale = Settings::values.frame_limit.GetValue() / 100.0;
const double sleep_scale = Settings::values.speed_limit.GetValue() / 100.0;
// Max lag caused by slow frames. Shouldn't be more than the length of a frame at the current
// speed percent or it will clamp too much and prevent this from properly limiting to that
@@ -143,17 +143,17 @@ void FrameLimiter::DoFrameLimiting(microseconds current_system_time_us) {
// limiting
const microseconds max_lag_time_us = duration_cast<microseconds>(
std::chrono::duration<double, std::chrono::microseconds::period>(25ms / sleep_scale));
frame_limiting_delta_err += duration_cast<microseconds>(
speed_limiting_delta_err += duration_cast<microseconds>(
std::chrono::duration<double, std::chrono::microseconds::period>(
(current_system_time_us - previous_system_time_us) / sleep_scale));
frame_limiting_delta_err -= duration_cast<microseconds>(now - previous_walltime);
frame_limiting_delta_err =
std::clamp(frame_limiting_delta_err, -max_lag_time_us, max_lag_time_us);
speed_limiting_delta_err -= duration_cast<microseconds>(now - previous_walltime);
speed_limiting_delta_err =
std::clamp(speed_limiting_delta_err, -max_lag_time_us, max_lag_time_us);
if (frame_limiting_delta_err > microseconds::zero()) {
std::this_thread::sleep_for(frame_limiting_delta_err);
if (speed_limiting_delta_err > microseconds::zero()) {
std::this_thread::sleep_for(speed_limiting_delta_err);
auto now_after_sleep = Clock::now();
frame_limiting_delta_err -= duration_cast<microseconds>(now_after_sleep - now);
speed_limiting_delta_err -= duration_cast<microseconds>(now_after_sleep - now);
now = now_after_sleep;
}