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Support half2 reading/writing

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This commit is contained in:
Joshua Goins 2024-02-02 14:18:58 -05:00
parent fd43401eae
commit 47649dfff5
1 changed files with 26 additions and 1 deletions
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27
src/model_file_operations.rs
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@ -62,6 +62,19 @@ impl MDL {
f16::from_f32(vec[3]).to_bits()])
}
pub(crate) fn read_half2(cursor: &mut Cursor<ByteSpan>) -> Option<[f32; 2]> {
Some([
f16::from_bits(cursor.read_le::<u16>().ok()?).to_f32(),
f16::from_bits(cursor.read_le::<u16>().ok()?).to_f32()
])
}
pub(crate) fn write_half2<T: BinWriterExt>(cursor: &mut T, vec: &[f32; 2]) -> BinResult<()> {
cursor.write_le::<[u16; 2]>(&[
f16::from_f32(vec[0]).to_bits(),
f16::from_f32(vec[1]).to_bits()])
}
pub(crate) fn read_uint(cursor: &mut Cursor<ByteSpan>) -> BinResult<[u8; 4]> {
cursor.read_le::<[u8; 4]>()
}
@ -134,6 +147,19 @@ mod tests {
assert_eq!(MDL::read_half4(&mut read_cursor).unwrap(), a);
}
#[test]
fn half2() {
let a = [0.0, 1.0];
let mut v = vec![];
let mut cursor = Cursor::new(&mut v);
MDL::write_half2(&mut cursor, &a).unwrap();
let mut read_cursor = Cursor::new(v.as_slice());
assert_eq!(MDL::read_half2(&mut read_cursor).unwrap(), a);
}
#[test]
fn uint() {
let a = [5u8, 0u8, 3u8, 15u8];
@ -187,7 +213,6 @@ mod tests {
assert_delta!(tangent, a, 0.001);
}
#[test]
fn pad_slice() {
let a = [3.0, 0.0, -1.0];