Conflicts:
- Cargo.lock: designcraft-compose depends on both unicode-script (#427)
and unicode-segmentation (next).
- ROADMAP.md: the optical kerning progress-log line goes above next's two
2026-10-11 lines. Status line keeps next's Last reviewed date and names
both changes.
- docs/gaps.md, docs/typography-parity.md: same status-line merge.
The system font scan also reads the font files CoreText has available
(core-text's collection of all available fonts, safe API), so fonts that
Adobe Fonts, RightFont and other font managers register from their own
folders are cataloged. Files the font folders already hold are read once;
paths that lead to no file are skipped. FontDb::global serves the desktop
app and designcraft-cli alike; the scan stays in the background.
Fixes#261, #327.
Optical kerning was treated exactly like Metrics: the font's kern pairs
and nothing else, so text set with Optical in InDesign came out wider,
rewrapped and went overset in tightly fitted frames.
Now the font's pairs are turned off for Optical text and each pair is
spaced from its outlines (crates/compose/src/optical.rs): every glyph's
ink is sampled into 28 bands across the em, the pair's mean and smallest
ink gap over the bands both glyphs ink are compared with the font's
stem-to-stem gap (the pair nn, or HH then oo), and the pair moves 60% of
the way towards it, keeping 30% of that gap and moving at most -0.12 or
+0.06 em. Latin, Greek and Cyrillic letters, digits and Western
punctuation take part; spaces, marks, missing glyphs, right-to-left
runs, upright and tate-chu-yoko glyphs and pairs across a fallback font
keep their font spacing. Profiles and references are cached, bounded.
Tests: AV, To and r. close up and nn stays; HH closes up under Optical
but not Metrics (fails on main); every change on a pangram stays within
the bounds and spaces keep their width; profile, gap, adjustment and
character-class unit tests.
Docs: typography parity Kerning row and remaining effort, gap 4,
ROADMAP milestone 6 and progress log.
Fixes#181.
Ported from VectorCraft's start-up fixes (#502, #545, #651, the display-GPU
choice, #806, #964) and reconciled with the backend fallback of #297:
- The app picks the window's adapter itself (eframe's native_adapter_selector,
apps/designcraft/src/gpu.rs): adapters that can't present never, then
WGPU_ADAPTER_NAME, hardware before software, native backends before OpenGL,
the GPU that drives the primary display (Windows EnumDisplayDevices through
winsafe, Linux /sys/class/drm), the power preference (WGPU_POWER_PREF;
otherwise power saving on Windows and macOS, the system's order elsewhere),
then DX12 before Vulkan. Every adapter and the choice are logged.
- wgpu's indirect-call validation is off (WGPU_VALIDATION_INDIRECT_CALL=1 turns
it back on): its compute shader failed to compile on an Intel Mac and lost
the Metal device (#334, first error).
- run_native runs under catch_unwind. A wgpu error or a panic in wgpu,
egui-wgpu or naga during the first frames, or a first frame that doesn't
reach the screen in 20 s, starts the app again without that adapter
(DESIGNCRAFT_GPU_SKIP; exec on Unix, a new process on Windows). When no
adapter of the start's backends is left, it starts again with the next
backend. Each restart leaves out one more adapter or backend, so they end.
Adapters without PCI ids (Metal) are keyed by name.
- The backend fallback (gpu/backend.rs, gpu.json) stays for driver faults that
take the process down. Windows tries DirectX 12, then OpenGL, then Vulkan,
each in its own instance: Vulkan last because creating its instance loads
every installed Vulkan driver, and OpenGL kept out of the DX12 instance
because creating it crashed in AMD's atio6axx.dll (#167).
- main returns an ExitCode and logs why the app stopped to standard error and
the log file, which is all a Windows start without a console leaves (#273).
README, architecture, gaps, hardware and target-app parity docs and ROADMAP
describe the choice, the restarts and the variables.
Progress docs per craftrules standards/progress-docs.md: target-app parity, gaps, roadmap with alpha gate, readiness by audience (full / mainstream / essentials) with Opus 5.5 hours, and feature, format, hardware, UI and localization parity docs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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