Rene Leonhardt 5290930e4a fix: Preserve CMYK solid and gradient fills through PSD round trips (#2628) ...

* fix(compose): Preserve native CMYK fills through PSD round trips

Share depth-quantized ink samples between rendering and PSD caches.
Use the document profile for RGB fill colours and preserve valid imported
caches. Uncached CMYK fills use CPU rendering.

Cover all sample depths, gradient styles and tiled renders. Fix the real
16-bit gradient round trip and raise the psd-tools floor from 307 to 308.

* perf(raster): Reuse exact 8-bit CMYK conversions within rows

Cache the previous ink bytes and ICC result per row, with alpha decoded
independently. Keep the 16/32-bit conversion loops unchanged.

Matched 1 MP reads improve by 77% for smooth ramps, 33% with dithering
and 10% for random colours. Bitwise regression coverage includes all
depths, alpha and tile boundaries.

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..

benches

more algorithms, progress

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examples

continued wip

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src

fix: Preserve CMYK solid and gradient fills through PSD round trips (#2628)

2026-10-10 13:11:54 -04:00

tests

fix(compose): scale artboard bounds in proxy documents (#131)

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Cargo.toml

continued wip

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