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make test not reliant on coincidence alignment

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Corwin 2023-06-20 21:03:54 +01:00 committed by Gwilym Inzani
parent 0e3fe2c49a
commit 389e3ecadb
1 changed files with 51 additions and 41 deletions
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92
agb/src/sound/mixer/sw_mixer.rs
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@ -480,54 +480,64 @@ mod test {
#[test_case]
fn collapse_should_correctly_reduce_size_of_input(_: &mut crate::Gba) {
let input: &[Num<i16, 4>] = &[
num!(10.0),
num!(10.0),
num!(5.0),
num!(5.0),
num!(-10.0),
num!(-10.5),
num!(-5.9),
num!(-5.2),
num!(0.0),
num!(1.1),
num!(2.2),
num!(3.3),
num!(155.4),
num!(-230.5),
num!(400.6),
num!(-700.7),
num!(10.0),
num!(10.0),
num!(5.0),
num!(5.0),
num!(-10.0),
num!(-10.5),
num!(-5.9),
num!(-5.2),
num!(0.0),
num!(1.1),
num!(2.2),
num!(3.3),
num!(155.4),
num!(-230.5),
num!(400.6),
num!(-700.7),
];
#[repr(align(4))]
struct AlignedNumbers<const N: usize>([Num<i16, 4>; N]);
let mut output_buffer = vec![0i8; input.len()];
let input = &AlignedNumbers([
num!(10.0),
num!(10.0),
num!(5.0),
num!(5.0),
num!(-10.0),
num!(-10.5),
num!(-5.9),
num!(-5.2),
num!(0.0),
num!(1.1),
num!(2.2),
num!(3.3),
num!(155.4),
num!(-230.5),
num!(400.6),
num!(-700.7),
num!(10.0),
num!(10.0),
num!(5.0),
num!(5.0),
num!(-10.0),
num!(-10.5),
num!(-5.9),
num!(-5.2),
num!(0.0),
num!(1.1),
num!(2.2),
num!(3.3),
num!(155.4),
num!(-230.5),
num!(400.6),
num!(-700.7),
]);
let input = &input.0;
let mut output_buffer = vec![0i32; input.len() / 4];
unsafe {
agb_rs__mixer_collapse(output_buffer.as_mut_ptr(), input.as_ptr(), input.len() / 2);
agb_rs__mixer_collapse(
output_buffer.as_mut_ptr().cast(),
input.as_ptr(),
input.len() / 2,
);
}
// output will be unzipped, so input is LRLRLRLRLRLRLR... and output is LLLLLLRRRRRR
assert_eq!(
output_buffer,
&[
assert!(output_buffer
.iter()
.flat_map(|x| x.to_le_bytes())
.map(|x| x as i8)
.eq([
10, 5, -10, -6, 0, 2, 127, 127, 10, 5, -10, -6, 0, 2, 127, 127, 10, 5, -11, -6, 1,
3, -128, -128, 10, 5, -11, -6, 1, 3, -128, -128
]
);
]));
}
}