25 lines
743 B
Rust
25 lines
743 B
Rust
#![no_main]
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use libfuzzer_sys::fuzz_target;
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use qoi::{encode_size_limit, encode_to_vec};
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fuzz_target!(|input: (bool, u8, &[u8])| {
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let (is_4, w_frac, data) = input;
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let channels = if is_4 { 4 } else { 3 };
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let size = data.len();
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let n_pixels = size / channels as usize;
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let (w, h) = if n_pixels == 0 {
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(0, 0)
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} else {
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let w = ((n_pixels * (1 + w_frac as usize)) / 256).max(1);
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let h = n_pixels / w;
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(w, h)
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};
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let out = encode_to_vec(&data[..(w * h * channels as usize)], w as u32, h as u32);
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if w * h != 0 {
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let out = out.unwrap();
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assert!(out.len() <= encode_size_limit(w as u32, h as u32, channels));
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} else {
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assert!(out.is_err());
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}
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});
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