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Encoder fix - always disallow first-run shortcut

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This commit is contained in:
Ivan Smirnov 2022-01-06 02:50:21 +03:00
parent 5a899bbf25
commit 7cadd4c03e
1 changed files with 4 additions and 4 deletions
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8
src/encode.rs
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@ -25,10 +25,10 @@ where
let mut index = [Pixel::new(); 256];
let mut px_prev = Pixel::new().with_a(0xff);
let mut hash_prev = Pixel::<N>::new().with_a(0xff).hash_index();
let mut hash_prev = px_prev.hash_index();
let mut run = 0_u8;
let mut px = Pixel::<N>::new().with_a(0xff);
let mut index_allowed = N == 3;
let mut index_allowed = false;
let n_pixels = data.len() / N;
@ -44,9 +44,9 @@ where
if run != 0 {
#[cfg(not(feature = "reference"))]
{
// credits for the original idea: @zakarumych
// credits for the original idea: @zakarumych (had to be fixed though)
buf = buf.write_one(if run == 1 && index_allowed {
QOI_OP_INDEX | (hash_prev as u8)
QOI_OP_INDEX | hash_prev
} else {
QOI_OP_RUN | (run - 1)
})?;