irisandClaude Fable 5.1 d8e6bc6e9b iris: bundle Noto Sans for text rendering, apply density scale on both backends ...

Bundles Noto Sans/Noto Sans Mono (regular/bold/italic/bold-italic, OFL
licensed) into iris-core and registers them ahead of the platform's own
fonts in the SansSerif/Monospace generic-family fallback lists, so text
no longer depends on the platform's font enumeration succeeding or
resolving weight/style correctly. Iris's phone report showed bold spans
rendering as blank gaps of the correct advance width -- the glyph simply
wasn't rasterised -- while the emulator's system fonts happened to
resolve every style; a bundled static-per-style family removes that
platform-dependent step entirely. TextData::font_diagnostics() reports
what was found/resolved, for the startup log and the Diagnostics page.

Also applies a content/device-pixel scale that neither backend had
before: UiRenderNode::new/resize now take the window size explicitly
(logical units) rather than deriving it from the surface's physical
config, so a 16.0 font size is 16 logical units rather than 16 raw
device pixels. Wired on desktop via window.scale_factor() (input events,
window_size, and the render node's own seed); the Android side (density
via DisplayMetrics, touch coordinates, layout root size) is the next
commit.

Also adds WgpuErrorLog and a per-frame atlas-grow counter
(GpuTextures::take_pages_grown), both plumbing for the Android
diagnostics page in the next commit.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

2026-09-05 23:36:29 -04:00

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