The icon was already embedded and had been all along: `app.slint` sets it and
`build.rs` compiles it into the binary with `EmbedFiles`. That is not what a
Wayland compositor looks at. It ignores a client-set icon entirely, matches
the surface's `app_id` against installed `.desktop` files, and takes the icon
from the one whose basename agrees. Nothing set an app id and no desktop entry
existed, so GNOME had nothing to resolve and drew the placeholder.
Both halves are needed and neither substitutes for the other: the embedded
icon is what X11 and the window itself use, and the desktop entry is what the
overview, the dash and alt-tab use.
The app id, the `.desktop` basename and the installed icon's filename are one
string in three places — `paris.tourolle.darkroom`, the same reverse-DNS name
the Android manifest already uses, because it is one application. Change one
without the others and the icon disappears again with nothing logged, so each
file says so where the string appears.
The PKGBUILD builds from the checkout rather than a release tarball, so
`makepkg -si` installs what is being worked on. Install verified by inspection
of the built package: binary, desktop entry, and the icon under
hicolor/256x256 by the name the entry asks for.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Establishes the v0.1 foundations on both platforms:
- dr-types: SourceRef (never a filesystem path — Android SAF has none),
Format, Availability, Validator with ETag quote normalisation
- dr-gpu: wgpu device, compute pass writing a storage texture, resize
- dr-ui: Slint shell with FR-UI-1 adaptive layout, computed in Rust to
avoid a binding loop
- docker/android: pinned toolchain, verified producing API 28 ARM binaries
Measured the cost of the temporary CPU readback path (dr-gpu bench):
compute is 0.06-0.28ms across sizes while readback is 0.63-7.43ms, so
readback is 90-96% of frame time and scales with area. Recorded in
ARCH §6.1 — this is why spike S1 is the priority.
Mitigations pending S1: reuse the staging buffer, apply at most one
resize per frame, and cap render resolution at 2048 on the long edge.
10 tests passing; core crates cross-compile for aarch64-linux-android.
dtourolleandClaude Opus 5