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use crate::{Sample, SampleFormat, I24, U24};
#[cfg(target_os = "android")]
pub(crate) mod aaudio;
#[cfg(any(
target_os = "linux",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "netbsd"
))]
pub(crate) mod alsa;
#[cfg(all(windows, feature = "asio"))]
pub(crate) mod asio;
#[cfg(all(
feature = "wasm-bindgen",
feature = "audioworklet",
target_feature = "atomics"
))]
pub(crate) mod audioworklet;
#[cfg(windows)]
pub(crate) mod com;
#[cfg(any(target_os = "macos", target_os = "ios"))]
pub(crate) mod coreaudio;
#[cfg(target_os = "emscripten")]
pub(crate) mod emscripten;
#[cfg(all(
feature = "jack",
any(
target_os = "linux",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "netbsd",
target_os = "macos",
target_os = "windows",
)
))]
pub(crate) mod jack;
#[cfg(all(
any(
target_os = "linux",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "netbsd",
),
feature = "pipewire"
))]
pub(crate) mod pipewire;
#[cfg(all(
any(
target_os = "linux",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "netbsd"
),
feature = "pulseaudio"
))]
pub(crate) mod pulseaudio;
#[cfg(windows)]
pub(crate) mod wasapi;
#[cfg(all(target_arch = "wasm32", feature = "wasm-bindgen"))]
pub(crate) mod webaudio;
#[cfg(feature = "custom")]
pub(crate) mod custom;
#[cfg(not(any(
windows,
target_os = "linux",
target_os = "dragonfly",
target_os = "freebsd",
target_os = "netbsd",
target_os = "macos",
target_os = "ios",
target_os = "emscripten",
target_os = "android",
all(target_arch = "wasm32", feature = "wasm-bindgen"),
)))]
pub(crate) mod null;
// Fill a buffer with equilibrium values for any sample format.
// Works with any buffer size, even if not perfectly aligned to sample boundaries.
#[allow(unused)]
pub(crate) fn fill_with_equilibrium(buffer: &mut [u8], sample_format: SampleFormat) {
macro_rules! fill_typed {
($sample_type:ty) => {{
let sample_size = std::mem::size_of::<$sample_type>();
debug_assert_eq!(
buffer.len() % sample_size,
0,
"Buffer size must be aligned to sample size for format {:?}",
sample_format
);
let num_samples = buffer.len() / sample_size;
let equilibrium = <$sample_type as Sample>::EQUILIBRIUM;
// Safety: We verified the buffer size is correctly aligned for the sample type
let samples = unsafe {
std::slice::from_raw_parts_mut(
buffer.as_mut_ptr() as *mut $sample_type,
num_samples,
)
};
for sample in samples {
*sample = equilibrium;
}
}};
}
const DSD_SILENCE_BYTE: u8 = 0x69;
match sample_format {
SampleFormat::I8 => fill_typed!(i8),
SampleFormat::I16 => fill_typed!(i16),
SampleFormat::I24 => fill_typed!(I24),
SampleFormat::I32 => fill_typed!(i32),
// SampleFormat::I48 => fill_typed!(I48),
SampleFormat::I64 => fill_typed!(i64),
SampleFormat::U8 => fill_typed!(u8),
SampleFormat::U16 => fill_typed!(u16),
SampleFormat::U24 => fill_typed!(U24),
SampleFormat::U32 => fill_typed!(u32),
// SampleFormat::U48 => fill_typed!(U48),
SampleFormat::U64 => fill_typed!(u64),
SampleFormat::F32 => fill_typed!(f32),
SampleFormat::F64 => fill_typed!(f64),
SampleFormat::DsdU8 | SampleFormat::DsdU16 | SampleFormat::DsdU32 => {
buffer.fill(DSD_SILENCE_BYTE)
}
}
}
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