UPDATE_APP (native builds; craft-update is a native-only dependency) carries our 128 px icon and accent (#f07a1e, its colour in ArtCraft Launcher). The updater, the self-update
helper and craft-update's startup prompt all get them through crate::UPDATE_APP; the
prompt draws the icon, the accent and "by ArtCraft" (craft-update's default developer).
craft-update is pinned to storytold/craft-libs main at 1065653e7 (#434).
Clippy fixes for Rust 1.99 in untouched code (same logic):
- crates/engine/src/tools/click.rs
- crates/engine/src/tools/pointer.rs
- crates/metafile/src/emfplus.rs
- crates/model/src/trendline.rs
- crates/pptx/src/read/dml.rs
- xtask/src/layers.rs
PDF export rasterises every slide as a backdrop and a content layer and
hands both to the writer. Profiling (gdb stack sampling) showed most of
the main thread outside rendering going to per-pixel work on those
rasters: compositing the backdrop onto white (not vectorised), the
writer hashing every backdrop to deduplicate it, and the straight-alpha
conversion scanning every content pixel.
- Composite the backdrop with saturating adds and skip 16-pixel blocks
that are already opaque; skip blocks with no partly transparent pixel
in the straight-alpha conversion. Same formulas, same bytes.
- Keep the last opaque backdrops (up to 32 MiB of pixels) and hand the
writer the same image again when a slide renders an identical
backdrop. The writer stored equal backdrops once already; now it also
skips hashing and compressing the copies. Output is byte-identical.
deckcraft-cli bench, export .pdf step, 15 interleaved runs each on a
16-thread Ryzen (A/A noise +0.9 %):
- sample x4 (32 slides): median 531 -> 322 ms (-39 %), min 529 -> 317 ms
- same deck, every slide a different background: 557 -> 441 ms (-21 %)
- sample (8 slides): 149 -> 103 ms (-31 %)
Exported PDFs are byte-identical.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Scale is measured from the size the tab first showed, like the Size and Position
dialog, and runs shape.sizePosition (honouring Lock aspect ratio). From switches
Horizontal/Vertical between the top-left corner and the centre. The lock checkbox
used a fresh id every frame so it never held; it now keeps its state.
