dtourolle
82a5e21ec6
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.
60 lines
1.8 KiB
Bash
Executable File
60 lines
1.8 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Run a command inside the DarkRoom Android build container.
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#
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# ./docker/android/build.sh cargo ndk -t arm64-v8a build --release
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# ./docker/android/build.sh cargo check --target aarch64-linux-android
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# ./docker/android/build.sh # interactive shell
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#
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# Builds the image on first use. Rebuild after editing the Dockerfile with:
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# ./docker/android/build.sh --rebuild
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set -euo pipefail
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IMAGE="darkroom-android:latest"
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HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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REPO="$(cd "${HERE}/../.." && pwd)"
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# Prefer podman (rootless by default); fall back to docker.
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if command -v podman >/dev/null 2>&1; then
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ENGINE=podman
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elif command -v docker >/dev/null 2>&1; then
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ENGINE=docker
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else
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echo "error: neither podman nor docker found" >&2
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exit 1
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fi
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if [[ "${1:-}" == "--rebuild" ]]; then
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shift
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"${ENGINE}" build -t "${IMAGE}" "${HERE}"
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elif ! "${ENGINE}" image exists "${IMAGE}" 2>/dev/null && \
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! "${ENGINE}" image inspect "${IMAGE}" >/dev/null 2>&1; then
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echo "==> building ${IMAGE} (first run; several minutes)"
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"${ENGINE}" build -t "${IMAGE}" "${HERE}"
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fi
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# Persist the cargo registry and target dir across runs, or every build
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# re-downloads the crate index.
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CACHE="${XDG_CACHE_HOME:-${HOME}/.cache}/darkroom-android"
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mkdir -p "${CACHE}/registry" "${CACHE}/target"
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ARGS=(
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--rm
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-v "${REPO}:/work:z"
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-v "${CACHE}/registry:/opt/cargo/registry:z"
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-v "${CACHE}/target:/work/target-android:z"
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-e CARGO_TARGET_DIR=/work/target-android
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-w /work
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)
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# Rootless podman already maps the host user; docker needs it stated.
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if [[ "${ENGINE}" == "docker" ]]; then
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ARGS+=(--user "$(id -u):$(id -g)")
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fi
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if [[ $# -eq 0 ]]; then
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ARGS+=(-it)
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set -- /bin/bash
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fi
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exec "${ENGINE}" run "${ARGS[@]}" "${IMAGE}" "$@"
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