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Gaussian Blur: the bit-identity test covers tiles past the first

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A 300-pixel-wide case runs the row-by-row pass over tiles at x 128 and 256 and a partial last tile.
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nazar-gavrylyk
2026-11-10 15:04:01 +01:00
parent e4c49f9bc0
commit 21d54b2a1a
1 changed files with 4 additions and 3 deletions
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crates/raster/src/blur.rs
+4 -3
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@@ -339,9 +339,10 @@ mod tests {
#[test]
fn gauss_pass_is_bit_identical_to_the_per_pixel_kernel() {
// Sizes narrower and shorter than the kernel too (every tap near an edge), with
// negative, zero and HDR values.
for (w, h) in [(37, 23), (3, 2), (1, 9), (64, 1)] {
// Sizes narrower and shorter than the kernel too (every tap near an edge), one wider
// than three tiles (tiles past the first, and a partial last one), with negative, zero
// and HDR values.
for (w, h) in [(37, 23), (3, 2), (1, 9), (64, 1), (300, 5)] {
let mut img = Image::new(w, h);
for (i, p) in img.data.iter_mut().enumerate() {
let v = ((i * 7919) % 101) as f32 / 37.0 - 0.6;