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Audio device pt 2

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wheremyfoodat 2025-02-09 04:06:44 +02:00
parent 486e2ea5cb
commit 4b7fedb65c
4 changed files with 41 additions and 42 deletions
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35
src/libretro_core.cpp
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@ -389,39 +389,8 @@ void retro_run() {
emulator->runFrame();
videoCallback(RETRO_HW_FRAME_BUFFER_VALID, emulator->width, emulator->height, 0);
auto& audioDevice = emulator->getAudioDevice();
if (audioDevice.running) {
static constexpr int frameCount = 547;
static constexpr int channelCount = 2;
static int16_t audioBuffer[frameCount * channelCount];
usize samplesWritten = 0;
samplesWritten += audioDevice.getSamples()->pop(audioBuffer, frameCount * channelCount);
// Get the last sample for underrun handling
if (samplesWritten != 0) {
std::memcpy(
&audioDevice.lastStereoSample[0],
&audioBuffer[(samplesWritten - 1) * 2],
sizeof(audioDevice.lastStereoSample)
);
}
// If underruning, copy the last output sample
{
s16* pointer = &audioBuffer[samplesWritten * 2];
s16 l = audioDevice.lastStereoSample[0];
s16 r = audioDevice.lastStereoSample[1];
for (usize i = samplesWritten; i < frameCount; i++) {
*pointer++ = l;
*pointer++ = r;
}
}
audioBatchCallback(audioBuffer, sizeof(audioBuffer) / (2 * sizeof(int16_t)));
}
// Call audio batch callback
emulator->getAudioDevice().renderBatch(audioBatchCallback);
}
void retro_set_controller_port_device(uint port, uint device) {}