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Fix CPAL buffer bug (thanks @jesnor)

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This commit is contained in:
Marcus Ramse 2024-04-16 16:45:54 +00:00
parent bb274976ca
commit ed72de7cbf
1 changed files with 7 additions and 6 deletions
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13
src/wrapper/standalone/backend/cpal.rs
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@ -824,8 +824,10 @@ impl CpalMidir {
} }
{ {
let sample_count = data.len() / num_output_channels;
assert!(sample_count <= buffer_size);
let buffers = unsafe { let buffers = unsafe {
buffer_manager.create_buffers(0, buffer_size, |buffer_sources| { buffer_manager.create_buffers(0, sample_count, |buffer_sources| {
*buffer_sources.main_output_channel_pointers = Some(ChannelPointers { *buffer_sources.main_output_channel_pointers = Some(ChannelPointers {
ptrs: NonNull::new(main_io_channel_pointers.get().as_mut_ptr()) ptrs: NonNull::new(main_io_channel_pointers.get().as_mut_ptr())
.unwrap(), .unwrap(),
@ -893,11 +895,10 @@ impl CpalMidir {
// The buffer's samples need to be written to `data` in an interlaced format // The buffer's samples need to be written to `data` in an interlaced format
// SAFETY: Dropping `buffers` allows us to borrow `main_io_storage` again // SAFETY: Dropping `buffers` allows us to borrow `main_io_storage` again
for (output_sample, buffer_sample) in data for (i, output_sample) in data.iter_mut().enumerate() {
.iter_mut() let ch = i % num_output_channels;
.zip(main_io_storage.iter().flat_map(|channels| channels.iter())) let n = i / num_output_channels;
{ *output_sample = T::from_sample(main_io_storage[ch][n]);
*output_sample = T::from_sample(*buffer_sample);
} }
if let Some(output_event_rb_producer) = &mut output_event_rb_producer { if let Some(output_event_rb_producer) = &mut output_event_rb_producer {