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More optimal code gen for invert_colors

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RunDevelopment committed 2026-03-03 14:36:16 +01:00
1 parent 9a9193345c
commit 0a878888db
1 file changed
+15 -15
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src/decoder/mod.rs
+15 -15
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@@ -730,33 +730,33 @@ fn invert_colors(
}
}
(ColorType::Gray(16), SampleFormat::Uint) => {
for x in buf.chunks_mut(2) {
let v = u16::from_ne_bytes(x.try_into().unwrap());
x.copy_from_slice(&(0xffff - v).to_ne_bytes());
for x in buf.as_chunks_mut::<2>().0 {
let v = u16::from_ne_bytes(*x);
*x = (0xffff - v).to_ne_bytes();
}
}
(ColorType::Gray(32), SampleFormat::Uint) => {
for x in buf.chunks_mut(4) {
let v = u32::from_ne_bytes(x.try_into().unwrap());
x.copy_from_slice(&(0xffff_ffff - v).to_ne_bytes());
for x in buf.as_chunks_mut::<4>().0 {
let v = u32::from_ne_bytes(*x);
*x = (0xffff_ffff - v).to_ne_bytes();
}
}
(ColorType::Gray(64), SampleFormat::Uint) => {
for x in buf.chunks_mut(8) {
let v = u64::from_ne_bytes(x.try_into().unwrap());
x.copy_from_slice(&(0xffff_ffff_ffff_ffff - v).to_ne_bytes());
for x in buf.as_chunks_mut::<8>().0 {
let v = u64::from_ne_bytes(*x);
*x = (0xffff_ffff_ffff_ffff - v).to_ne_bytes();
}
}
(ColorType::Gray(32), SampleFormat::IEEEFP) => {
for x in buf.chunks_mut(4) {
let v = f32::from_ne_bytes(x.try_into().unwrap());
x.copy_from_slice(&(1.0 - v).to_ne_bytes());
for x in buf.as_chunks_mut::<4>().0 {
let v = f32::from_ne_bytes(*x);
*x = (1.0 - v).to_ne_bytes();
}
}
(ColorType::Gray(64), SampleFormat::IEEEFP) => {
for x in buf.chunks_mut(8) {
let v = f64::from_ne_bytes(x.try_into().unwrap());
x.copy_from_slice(&(1.0 - v).to_ne_bytes());
for x in buf.as_chunks_mut::<8>().0 {
let v = f64::from_ne_bytes(*x);
*x = (1.0 - v).to_ne_bytes();
}
}
_ => {