diff options
| -rw-r--r-- | main/main-impl.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/main/main-impl.cpp b/main/main-impl.cpp index f4593344..d2ea74cc 100644 --- a/main/main-impl.cpp +++ b/main/main-impl.cpp @@ -244,17 +244,20 @@ void main_impl::drawEvent() #ifdef _WIN32 constexpr float eps = 1e-3f; #else - constexpr float eps = 2e-4f; + constexpr float eps = 1e-4f; #endif - const float dt0 = timeline.currentFrameDuration(), sleep_secs = dt_expected.value - dt0 - dt_expected.jitter; + const float Δt൦ = timeline.currentFrameDuration(), sleep_secs = dt_expected.value - Δt൦ - dt_expected.jitter; if (sleep_secs > eps) { //fm_debug("sleeping for %.1f <- %.1f\n", sleep_secs*1000, dt0*1000); std::this_thread::sleep_for(std::chrono::nanoseconds((long long)(sleep_secs * 1e9f))); } //fm_debug("jitter:%.1f sleep:%.0f", dt_expected.jitter*1000, sleep_secs*1000); - dt_expected.jitter += 0.1f * (timeline.currentFrameDuration() - dt_expected.value); + const float Δt = (timeline.currentFrameDuration() - dt_expected.value); + constexpr float α = .1f; + dt_expected.jitter = std::fmax(dt_expected.jitter + Δt * α, + dt_expected.jitter * (1-α) + Δt * α); dt_expected.jitter = std::copysignf(std::fminf(dt_expected.value, std::fabsf(dt_expected.jitter)), dt_expected.jitter); } else |