thirdpartymirrors/UnleashedRecomp
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Update waiting logic for audio thread.

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This commit is contained in:
Skyth 2024-12-22 14:36:56 +03:00
parent 6bf029b0bb
commit 6921a54dc6
1 changed files with 5 additions and 12 deletions
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17
UnleashedRecomp/apu/driver/sdl2_driver.cpp
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@ -40,8 +40,6 @@ static void AudioThread()
GuestThreadContext ctx(0); GuestThreadContext ctx(0);
size_t channels = g_downMixToStereo ? 2 : XAUDIO_NUM_CHANNELS; size_t channels = g_downMixToStereo ? 2 : XAUDIO_NUM_CHANNELS;
auto start = std::chrono::steady_clock::now();
int64_t iteration = 1;
while (true) while (true)
{ {
@ -55,19 +53,14 @@ static void AudioThread()
g_clientCallback(ctx.ppcContext, reinterpret_cast<uint8_t*>(g_memory.base)); g_clientCallback(ctx.ppcContext, reinterpret_cast<uint8_t*>(g_memory.base));
} }
auto next = start + std::chrono::nanoseconds((iteration * XAUDIO_NUM_SAMPLES * 1000000000ll) / XAUDIO_SAMPLES_HZ);
auto now = std::chrono::steady_clock::now(); auto now = std::chrono::steady_clock::now();
constexpr auto INTERVAL = 1000000000ns * XAUDIO_NUM_SAMPLES / XAUDIO_SAMPLES_HZ;
auto next = now + (INTERVAL - now.time_since_epoch() % INTERVAL);
if ((next - now) < 1s) std::this_thread::sleep_for(std::chrono::floor<std::chrono::milliseconds>(next - now));
{
std::this_thread::sleep_for(std::chrono::floor<std::chrono::milliseconds>(next - now));
while ((now = std::chrono::steady_clock::now()) < next) while (std::chrono::steady_clock::now() < next)
std::this_thread::yield(); std::this_thread::yield();
}
int64_t elapsed = std::chrono::nanoseconds(std::chrono::steady_clock::now() - start).count();
iteration = ((elapsed * XAUDIO_SAMPLES_HZ) / (XAUDIO_NUM_SAMPLES * 1000000000ll)) + 1;
} }
} }