MaxsTechReview
6e2966be43
* fix: keep Steam's directory listings on FUSE libraries Before it creates, moves or deletes a content file the Steam client lists the whole destination directory about ten times to match names case-insensitively. On Android's FUSE storage every listing goes through the media provider, so reserving space grew quadratically with the number of files: 33 minutes for Haunted Paws Demo (3,938 files) in a Games folder. The client's listings under steamapps/ on FUSE are now kept while the directory's stat is unchanged, for at most five seconds, and patched by the client's own creates, renames and removals. Other changes fail the stat check and the directory is read again. BL_NO_DIR_CACHE=1 turns it off. Haunted Paws Demo into the internal shared Games folder: reserving space 33m08s -> 25-52s, committing 6m15s -> 19-30s, install 39m50s -> 1m12s-1m51s. Internal storage is unchanged (5s reserve). * fix: drop stale directory listings on coarse-timestamp volumes NTFS reports whole-second directory times and a fixed size, so a change made outside the client's own calls could leave a cached listing stale. Listings now carry an inotify watch and are dropped on any event the client's own patched changes don't account for. A forked child stops caching, since it shares the parent's queue. Covers rewinddir, telldir and seekdir on cached listings, and directories opened by the fast-path preload's opendir, which goes through fdopendir.
DroidDeck brings the SteamOS experience to Android: Valve's Steam client in Big Picture on your Adreno handheld, with Windows games through Valve's ARM64 Proton.
Note: DroidDeck does not have a stand-alone website. Do not click on any download links from websites claiming to be the DroidDeck team.
Requirements and install
Use Android 9 or newer on a supported Adreno device (730 or newer, or 8xx). Adreno 6xx is experimental: DirectX 11 uses DXVK 2 and may run, and DirectX 12 games can still crash. Mali, Xclipse, PowerVR, and Adreno 710 are unsupported. No root is required. Allow about 3 GB for the runtime and 1.1 GB more for the desktop and emulators. Install the APK from Releases, install the Linux runtime, then press Play and sign in. Steam downloads on first launch. Install Desktop & apps to use the desktop and emulators. The Store installs Linux apps and games from Flathub (ARM64 builds) with Flatpak; with additional options to install Appimages and set up scripts.
Before Steam launches, you must turn off Restrict child processes in Developer options. If this option is not available in developer settings (Android 12 and 13 devices), first launch of Steam will present a "Fix it for me" button, which will help automate the setup process.
Community
Join the DroidDeck Discord for help, Preview builds, and device reports. Bug reports go in its #bug-reports forum; attach the session folder from Download/DroidDeck/ so the logs come with it.
Build
Run tools/build_local.sh with Docker, Java 17, the Android SDK/NDK, and zstd installed. It builds the ARM64 audio sinks from PulseAudio 13.0 and packages them into the APK at app/build/outputs/apk/release/app-release.apk. Set DROIDDECK_PA13_SOURCE_DIR to an existing PulseAudio 13.0 source directory to skip downloading it. To install the APK on an attached device, run tools/deploy_local.sh.
Limits
Compatibility and performance vary by device; hardware validation is limited. Desktop compositing uses software rendering. Firefox sandboxing is reduced under proot. See the session logs in Download/DroidDeck/ when diagnosing problems.
Credits and licence
GPL-3.0. Runtime, shim, input, and controller work build on WinNative and Bannerlator (maxjivi05). LSFG frame generation is from the work of Camille LaVey and the Eden emulator project, following lsfg-vk, ported to WinNative and DroidDeck by @maxjivi05; it needs your own copy of Lossless Scaling and ships none of its shaders. x86 AppImages, and any whose own runtime cannot unpack them, are unpacked with uruntime by VHSgunzo (MIT), shipped unmodified with its licence. See LICENSE. Steam and Proton belong to Valve Corporation; this project is not affiliated with Valve.