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authorbunnei <bunneidev@gmail.com>2018-08-07 00:03:05 +0200
committerGitHub <noreply@github.com>2018-08-07 00:03:05 +0200
commit83ef37ca37e052f4293c7693766f36f24754388e (patch)
treec113fb5c96276e1def8d2f4258b66167b0dd0c2b
parentMerge pull request #945 from lioncash/exist (diff)
parentperf_stats: Correct literal used for MAX_LAG_TIME_US (diff)
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-rw-r--r--src/core/core_timing.cpp4
-rw-r--r--src/core/core_timing.h3
-rw-r--r--src/core/perf_stats.cpp17
-rw-r--r--src/core/perf_stats.h8
4 files changed, 16 insertions, 16 deletions
diff --git a/src/core/core_timing.cpp b/src/core/core_timing.cpp
index b2e3a495a..d3bb6f818 100644
--- a/src/core/core_timing.cpp
+++ b/src/core/core_timing.cpp
@@ -226,8 +226,8 @@ void Idle() {
downcount = 0;
}
-u64 GetGlobalTimeUs() {
- return GetTicks() * 1000000 / BASE_CLOCK_RATE;
+std::chrono::microseconds GetGlobalTimeUs() {
+ return std::chrono::microseconds{GetTicks() * 1000000 / BASE_CLOCK_RATE};
}
int GetDowncount() {
diff --git a/src/core/core_timing.h b/src/core/core_timing.h
index 5bbde47f4..dfa161c0d 100644
--- a/src/core/core_timing.h
+++ b/src/core/core_timing.h
@@ -17,6 +17,7 @@
* ScheduleEvent(periodInCycles - cyclesLate, callback, "whatever")
*/
+#include <chrono>
#include <functional>
#include <string>
#include "common/common_types.h"
@@ -86,7 +87,7 @@ void ClearPendingEvents();
void ForceExceptionCheck(s64 cycles);
-u64 GetGlobalTimeUs();
+std::chrono::microseconds GetGlobalTimeUs();
int GetDowncount();
diff --git a/src/core/perf_stats.cpp b/src/core/perf_stats.cpp
index 5f53b16d3..8e09b9b63 100644
--- a/src/core/perf_stats.cpp
+++ b/src/core/perf_stats.cpp
@@ -40,22 +40,21 @@ void PerfStats::EndGameFrame() {
game_frames += 1;
}
-PerfStats::Results PerfStats::GetAndResetStats(u64 current_system_time_us) {
+PerfStats::Results PerfStats::GetAndResetStats(microseconds current_system_time_us) {
std::lock_guard<std::mutex> lock(object_mutex);
- auto now = Clock::now();
+ const auto now = Clock::now();
// Walltime elapsed since stats were reset
- auto interval = duration_cast<DoubleSecs>(now - reset_point).count();
+ const auto interval = duration_cast<DoubleSecs>(now - reset_point).count();
- auto system_us_per_second =
- static_cast<double>(current_system_time_us - reset_point_system_us) / interval;
+ const auto system_us_per_second = (current_system_time_us - reset_point_system_us) / interval;
Results 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 / 1'000'000.0;
+ results.emulation_speed = system_us_per_second.count() / 1'000'000.0;
// Reset counters
reset_point = now;
@@ -74,10 +73,10 @@ double PerfStats::GetLastFrameTimeScale() {
return duration_cast<DoubleSecs>(previous_frame_length).count() / FRAME_LENGTH;
}
-void FrameLimiter::DoFrameLimiting(u64 current_system_time_us) {
+void FrameLimiter::DoFrameLimiting(microseconds current_system_time_us) {
// Max lag caused by slow frames. Can be adjusted to compensate for too many slow frames. Higher
// values increase the time needed to recover and limit framerate again after spikes.
- constexpr microseconds MAX_LAG_TIME_US = 25ms;
+ constexpr microseconds MAX_LAG_TIME_US = 25us;
if (!Settings::values.toggle_framelimit) {
return;
@@ -85,7 +84,7 @@ void FrameLimiter::DoFrameLimiting(u64 current_system_time_us) {
auto now = Clock::now();
- frame_limiting_delta_err += microseconds(current_system_time_us - previous_system_time_us);
+ frame_limiting_delta_err += current_system_time_us - previous_system_time_us;
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);
diff --git a/src/core/perf_stats.h b/src/core/perf_stats.h
index 362b205c8..6e4619701 100644
--- a/src/core/perf_stats.h
+++ b/src/core/perf_stats.h
@@ -33,7 +33,7 @@ public:
void EndSystemFrame();
void EndGameFrame();
- Results GetAndResetStats(u64 current_system_time_us);
+ Results GetAndResetStats(std::chrono::microseconds current_system_time_us);
/**
* Gets the ratio between walltime and the emulated time of the previous system frame. This is
@@ -47,7 +47,7 @@ private:
/// Point when the cumulative counters were reset
Clock::time_point reset_point = Clock::now();
/// System time when the cumulative counters were reset
- u64 reset_point_system_us = 0;
+ std::chrono::microseconds reset_point_system_us{0};
/// Cumulative duration (excluding v-sync/frame-limiting) of frames since last reset
Clock::duration accumulated_frametime = Clock::duration::zero();
@@ -68,11 +68,11 @@ class FrameLimiter {
public:
using Clock = std::chrono::high_resolution_clock;
- void DoFrameLimiting(u64 current_system_time_us);
+ void DoFrameLimiting(std::chrono::microseconds current_system_time_us);
private:
/// Emulated system time (in microseconds) at the last limiter invocation
- u64 previous_system_time_us = 0;
+ std::chrono::microseconds previous_system_time_us{0};
/// Walltime at the last limiter invocation
Clock::time_point previous_walltime = Clock::now();