pdfcraft/crates/ui-egui
Krzysztof Cieślik bde9dc52fe
honour the /Lab colour space /WhitePoint (#1203) (#1237)
* fix: recognize paragraph drafts as unsaved work (Issue #811)

* fix(color): honour the /Lab colour space /WhitePoint (#1203)

The old path fed every Lab value to the bundled ICC transform as if the
space's white point were D50, so a /Lab space with any other /WhitePoint
(e.g. D65 [0.9505 1 1.089]) rendered off by several levels per channel
and a D65 blue came out 45 levels too red.

Map L*a*b* to XYZ in the space's own white coordinates (ISO 32000-2
§8.6.5.4), Bradford-adapt it to D65 and convert to sRGB directly, as
Poppler does. Missing or degenerate white points fall back to a flat
white and hostile components are clamped without panicking.

Add a render regression that checks the five reported flat patches of
the D65 white-point fixture against their CIE sRGB values.

* Lab: map normalised Indexed palette components onto L*/Range; drop unused LAB.icc

An /Indexed palette over Lab passes its entries as byte/255 (manual_scale),
which the new Lab conversion read as raw L*a*b* and drew near black. Map
them onto L* 0..100 and the a*/b* /Range, with a regression test. Record the
patch as hayro-interpret (25) in vendor/README.md, and remove LAB.icc (no
longer referenced) with its ATTRIBUTION, NOTICE and assets README entries.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* Main gates: rustfmt tests/viewer.rs; a type alias for the refresh-steps array (clippy type_complexity)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-12 02:08:21 -04:00
..
examples Rename PrintCraft to PdfCraft (#174) 2026-10-07 16:03:57 -04:00
src fix(i18n): refine Greek translations and May abbreviation (#1262) 2026-10-12 01:35:56 -04:00
tests honour the /Lab colour space /WhitePoint (#1203) (#1237) 2026-10-12 02:08:21 -04:00
Cargo.toml Units: read the Windows measurement system from the registry, not reg.exe (#1227) 2026-10-12 01:33:41 -04:00
build.rs Restore #196, #202, #203 and the macOS release-runner change, reverted by the i18n chain (#229) 2026-10-08 03:33:35 -04:00