2 Commits

Author SHA1 Message Date
22c35e37f4 remove debug trace 2023-09-02 15:37:27 +02:00
805c939097 add support for sound devices that only accept 16bit audio 2023-08-23 23:03:23 +02:00

View File

@@ -328,23 +328,26 @@ fn init_sound(
let mut configs: Vec<_> = device let mut configs: Vec<_> = device
.supported_output_configs()? .supported_output_configs()?
.filter(|config| { .filter(|config| {
config.channels() == 2 && config.sample_format() == cpal::SampleFormat::F32 config.channels() == 2
&& (config.sample_format() == cpal::SampleFormat::F32
|| config.sample_format() == cpal::SampleFormat::I16)
}) })
.collect(); .collect();
configs.sort_by_key(|config| { configs.sort_by_key(|config| {
let rate = 44100 let rate = 44100
.max(config.min_sample_rate().0) .max(config.min_sample_rate().0)
.min(config.max_sample_rate().0); .min(config.max_sample_rate().0);
if rate >= 44100 { let prio = if rate >= 44100 {
rate - 44100 rate - 44100
} else { } else {
(44100 - rate) * 1000 (44100 - rate) * 1000
} };
prio + (config.sample_format() == cpal::SampleFormat::I16) as u32
}); });
let config = configs let config = configs
.into_iter() .into_iter()
.next() .next()
.ok_or_else(|| anyhow!("Could not find float output config"))?; .ok_or_else(|| anyhow!("Could not find float or 16bit signed output config"))?;
let sample_rate = cpal::SampleRate(44100) let sample_rate = cpal::SampleRate(44100)
.max(config.min_sample_rate()) .max(config.min_sample_rate())
.min(config.max_sample_rate()); .min(config.max_sample_rate());
@@ -355,6 +358,7 @@ fn init_sound(
cpal::BufferSize::Fixed(256.max(min).min(max)) cpal::BufferSize::Fixed(256.max(min).min(max))
} }
}; };
let sample_format = config.sample_format();
let config = cpal::StreamConfig { let config = cpal::StreamConfig {
buffer_size, buffer_size,
..config.config() ..config.config()
@@ -387,107 +391,130 @@ fn init_sound(
let mut sample_index = 0; let mut sample_index = 0;
let mut pending_updates: Vec<RegisterUpdate> = Vec::with_capacity(30); let mut pending_updates: Vec<RegisterUpdate> = Vec::with_capacity(30);
let mut current_time = 0; let mut current_time = 0;
let stream = device.build_output_stream(
&config, let mut callback = move |mut outer_buffer: &mut [f32], _: &_| {
move |mut outer_buffer: &mut [f32], _| { let mut first_update = true;
let mut first_update = true; while let Ok(update) = rx.try_recv() {
while let Ok(update) = rx.try_recv() { if first_update {
if first_update { current_time += update.time.wrapping_sub(current_time) / 8;
current_time += update.time.wrapping_sub(current_time) / 8; first_update = false;
first_update = false; }
} pending_updates.push(update);
pending_updates.push(update); }
while !outer_buffer.is_empty() {
store.set_epoch_deadline(30);
while pending_updates
.first()
.into_iter()
.any(|u| u.time.wrapping_sub(current_time) <= 0)
{
let update = pending_updates.remove(0);
memory.write(&mut store, 80, &update.data).unwrap();
} }
while !outer_buffer.is_empty() { let duration = if let Some(update) = pending_updates.first() {
store.set_epoch_deadline(30); ((update.time.wrapping_sub(current_time) as usize) * sample_rate + 999) / 1000
while pending_updates } else {
.first() outer_buffer.len()
.into_iter() };
.any(|u| u.time.wrapping_sub(current_time) <= 0) let step_size = (duration.max(64) * 2).min(outer_buffer.len());
{
let update = pending_updates.remove(0);
memory.write(&mut store, 80, &update.data).unwrap();
}
let duration = if let Some(update) = pending_updates.first() { let mut buffer = &mut outer_buffer[..step_size];
((update.time.wrapping_sub(current_time) as usize) * sample_rate + 999) / 1000
{
let mem = memory.data_mut(&mut store);
mem[64..68].copy_from_slice(&current_time.to_le_bytes());
}
fn clamp_sample(s: f32) -> f32 {
if s.is_nan() {
0.0
} else { } else {
outer_buffer.len() s.max(-1.0).min(1.0)
};
let step_size = (duration.max(64) * 2).min(outer_buffer.len());
let mut buffer = &mut outer_buffer[..step_size];
{
let mem = memory.data_mut(&mut store);
mem[64..68].copy_from_slice(&current_time.to_le_bytes());
} }
}
fn clamp_sample(s: f32) -> f32 { if let Some(ref mut resampler) = resampler {
if s.is_nan() { while !buffer.is_empty() {
0.0 let copy_size = resampler.output_buffers[0]
} else { .len()
s.max(-1.0).min(1.0) .saturating_sub(resampler.output_index)
} .min(buffer.len() / 2);
} if copy_size == 0 {
resampler.input_buffers[0].clear();
if let Some(ref mut resampler) = resampler { resampler.input_buffers[1].clear();
while !buffer.is_empty() { for _ in 0..resampler.resampler.input_frames_next() {
let copy_size = resampler.output_buffers[0] resampler.input_buffers[0].push(clamp_sample(
.len() snd.call(&mut store, (sample_index,)).unwrap_or(0.0),
.saturating_sub(resampler.output_index) ));
.min(buffer.len() / 2); resampler.input_buffers[1].push(clamp_sample(
if copy_size == 0 { snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0),
resampler.input_buffers[0].clear(); ));
resampler.input_buffers[1].clear(); sample_index = sample_index.wrapping_add(2);
for _ in 0..resampler.resampler.input_frames_next() {
resampler.input_buffers[0].push(clamp_sample(
snd.call(&mut store, (sample_index,)).unwrap_or(0.0),
));
resampler.input_buffers[1].push(clamp_sample(
snd.call(&mut store, (sample_index + 1,)).unwrap_or(0.0),
));
sample_index = sample_index.wrapping_add(2);
}
resampler
.resampler
.process_into_buffer(
&resampler.input_buffers,
&mut resampler.output_buffers,
None,
)
.unwrap();
resampler.output_index = 0;
} else {
for i in 0..copy_size {
buffer[i * 2] =
resampler.output_buffers[0][resampler.output_index + i];
buffer[i * 2 + 1] =
resampler.output_buffers[1][resampler.output_index + i];
}
resampler.output_index += copy_size;
buffer = &mut buffer[copy_size * 2..];
} }
}
} else { resampler
for v in buffer { .resampler
*v = clamp_sample(snd.call(&mut store, (sample_index,)).unwrap_or(0.0)); .process_into_buffer(
sample_index = sample_index.wrapping_add(1); &resampler.input_buffers,
&mut resampler.output_buffers,
None,
)
.unwrap();
resampler.output_index = 0;
} else {
for i in 0..copy_size {
buffer[i * 2] = resampler.output_buffers[0][resampler.output_index + i];
buffer[i * 2 + 1] =
resampler.output_buffers[1][resampler.output_index + i];
}
resampler.output_index += copy_size;
buffer = &mut buffer[copy_size * 2..];
} }
} }
} else {
outer_buffer = &mut outer_buffer[step_size..]; for v in buffer {
current_time = *v = clamp_sample(snd.call(&mut store, (sample_index,)).unwrap_or(0.0));
current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32); sample_index = sample_index.wrapping_add(1);
}
} }
},
move |err| { outer_buffer = &mut outer_buffer[step_size..];
dbg!(err); current_time = current_time.wrapping_add((step_size * 500 / sample_rate).max(1) as i32);
}, }
None, };
)?; let stream = if sample_format == cpal::SampleFormat::F32 {
device.build_output_stream(
&config,
callback,
move |err| {
dbg!(err);
},
None,
)?
} else {
device.build_output_stream(
&config,
move |mut buffer: &mut [i16], info| {
let mut float_buffer = [0f32; 256];
while !buffer.is_empty() {
let step_size = buffer.len().min(float_buffer.len());
let step_buffer = &mut float_buffer[..step_size];
callback(step_buffer, info);
for (dest, src) in buffer.iter_mut().take(step_size).zip(step_buffer.iter()) {
*dest = (src.max(-1.0).min(1.0) * 32767.0) as i16;
}
buffer = &mut buffer[step_size..];
}
},
move |err| {
dbg!(err);
},
None,
)?
};
Ok(Uw8Sound { stream, tx }) Ok(Uw8Sound { stream, tx })
} }