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Move util::vec::byte_swap to canvas_traits

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This commit is contained in:
Anthony Ramine 2016-07-04 16:40:59 +02:00
parent a5b524d559
commit e77efb93c1
7 changed files with 19 additions and 25 deletions
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13
components/canvas_traits/lib.rs
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@ -539,3 +539,16 @@ impl ToAzColor for RGBA {
self.alpha as AzFloat)
}
}
// TODO(pcwalton): Speed up with SIMD, or better yet, find some way to not do this.
pub fn byte_swap(data: &mut [u8]) {
let length = data.len();
// FIXME(rust #27741): Range::step_by is not stable yet as of this writing.
let mut i = 0;
while i < length {
let r = data[i + 2];
data[i + 2] = data[i + 0];
data[i + 0] = r;
i += 4;
}
}