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fixed buffer size

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This commit is contained in:
Alex Janka 2023-10-18 17:53:42 +11:00
parent df1ec7c08b
commit 6ec01630c0
1 changed files with 11 additions and 1 deletions
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12
gb-emu/src/audio.rs
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@ -6,6 +6,7 @@ use futures::executor;
use gb_emu_lib::connect::{AudioOutput, DownsampleType};
const BUFFERS_PER_FRAME: usize = 5;
const DEFAULT_BUFFER_SIZE: u32 = 64;
const DOWNSAMPLE_TYPE: DownsampleType = DownsampleType::ZeroOrderHold;
pub fn create_output(muted: bool) -> (AudioOutput, Stream) {
@ -21,12 +22,20 @@ pub fn create_output(muted: bool) -> (AudioOutput, Stream) {
let sample_rate = config.sample_rate().0;
let mut stream_config = config.config();
if let cpal::SupportedBufferSize::Range { min, max } = config.buffer_size() {
stream_config.buffer_size =
cpal::BufferSize::Fixed(DEFAULT_BUFFER_SIZE.min(*max).max(*min));
}
println!("got buffer size {:#?}", stream_config.buffer_size);
let (output, mut rx) = AudioOutput::new(sample_rate as f32, BUFFERS_PER_FRAME, DOWNSAMPLE_TYPE);
let stream = if muted {
device
.build_output_stream(
&config.config(),
&stream_config,
move |data: &mut [f32], _info: &cpal::OutputCallbackInfo| {
for _ in data.chunks_exact_mut(2) {
match executor::block_on(rx.pop()) {
@ -60,6 +69,7 @@ pub fn create_output(muted: bool) -> (AudioOutput, Stream) {
)
.unwrap()
};
stream.play().unwrap();
(output, stream)