1936861b91
Fixes #579. In lack of a proper understanding of what's going on here and why the issue is happening, this workaround will do for now.
19 lines
743 B
Rust
19 lines
743 B
Rust
use std::num::NonZeroU8;
|
|
|
|
use crate::{PngError, PngResult};
|
|
|
|
pub fn deflate(data: &[u8], iterations: NonZeroU8) -> PngResult<Vec<u8>> {
|
|
let mut output = Vec::with_capacity(data.len());
|
|
let options = zopfli::Options {
|
|
iteration_count: iterations.into(),
|
|
..Default::default()
|
|
};
|
|
// Since Rust v1.74, passing &[u8] directly into zopfli causes a regression in compressed size
|
|
// for some files. Wrapping the slice in another Read implementer such as Box fixes it for now.
|
|
match zopfli::compress(options, zopfli::Format::Zlib, Box::new(data), &mut output) {
|
|
Ok(_) => (),
|
|
Err(_) => return Err(PngError::new("Failed to compress in zopfli")),
|
|
};
|
|
output.shrink_to_fit();
|
|
Ok(output)
|
|
}
|