thirdpartymirrors/UnleashedRecomp
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Redo frame limiter logic to fix drifting.

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This commit is contained in:
Skyth 2024-12-22 01:58:09 +03:00
parent 42f808c926
commit 5ed5ff7ff0
2 changed files with 7 additions and 5 deletions
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9
UnleashedRecomp/app.cpp
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@ -10,18 +10,21 @@ void FrameLimiter::execute(int64_t fps)
{ {
using namespace std::chrono_literals; using namespace std::chrono_literals;
auto next = start + frame * 1000000000ns / fps;
auto now = std::chrono::steady_clock::now(); auto now = std::chrono::steady_clock::now();
if (next > now && (next - now) < (2000000000ns / fps)) if (now < next)
{ {
std::this_thread::sleep_for(std::chrono::floor<std::chrono::milliseconds>(next - now - 1ms)); std::this_thread::sleep_for(std::chrono::floor<std::chrono::milliseconds>(next - now - 1ms));
while ((now = std::chrono::steady_clock::now()) < next) while ((now = std::chrono::steady_clock::now()) < next)
std::this_thread::yield(); std::this_thread::yield();
} }
else
{
next = now;
}
frame = std::chrono::nanoseconds(std::chrono::steady_clock::now() - start).count() * fps / 1000000000ll + 1; next += 1000000000ns / fps;
} }
static FrameLimiter g_frameLimiter; static FrameLimiter g_frameLimiter;

3
UnleashedRecomp/app.h
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@ -4,8 +4,7 @@
struct FrameLimiter struct FrameLimiter
{ {
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now(); std::chrono::steady_clock::time_point next;
int64_t frame = 0;
void execute(int64_t fps); void execute(int64_t fps);
}; };