https://github.com/jakewharton/composeui-lightswitch

Compose UI for the Orvibo MixPad D1
https://github.com/jakewharton/composeui-lightswitch

Last synced: 12 days ago
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Compose UI for the Orvibo MixPad D1

• Host: GitHub
• URL: https://github.com/jakewharton/composeui-lightswitch
• Owner: JakeWharton
• License: apache-2.0
• Created: 2023-11-15T17:51:48.000Z (12 months ago)
• Default Branch: trunk
• Last Pushed: 2024-05-28T12:28:06.000Z (5 months ago)
• Last Synced: 2024-05-29T03:15:27.131Z (5 months ago)
• Language: C
• Homepage:
• Size: 65.6 MB
• Stars: 34
• Watchers: 2
• Forks: 2
• Open Issues: 4
• Metadata Files:
  • Readme: README.device.md
  • License: LICENSE.txt

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README

        
# Orvibo MixPad D1

Details from the OEM binary that might be useful.

## GUI

Flutter app compiled to a native app with https://github.com/sony/flutter-embedded-linux.

### Startup sequence

 * `FlutterViewController`

   https://github.com/sony/flutter-embedded-linux/blob/bd5e4b67aad84d42c42aa7222fde33274baa08bf/src/client_wrapper/flutter_view_controller.cc#L12

 * `FlutterDesktopViewControllerCreate`

   https://github.com/sony/flutter-embedded-linux/blob/bd5e4b67aad84d42c42aa7222fde33274baa08bf/src/flutter/shell/platform/linux_embedded/flutter_elinux.cc#L80-L81

 * `ELinuxWindowDrm`

   https://github.com/sony/flutter-embedded-linux/blob/bd5e4b67aad84d42c42aa7222fde33274baa08bf/src/flutter/shell/platform/linux_embedded/window/elinux_window_drm.h#L37

 * `NativeWindowDrmGbm`

   https://github.com/sony/flutter-embedded-linux/blob/bd5e4b67aad84d42c42aa7222fde33274baa08bf/src/flutter/shell/platform/linux_embedded/window/native_window_drm_gbm.cc#L22

 * `NativeWindowDrm`

   https://github.com/sony/flutter-embedded-linux/blob/bd5e4b67aad84d42c42aa7222fde33274baa08bf/src/flutter/shell/platform/linux_embedded/window/native_window_drm.cc#L18

## Native libraries

The device ships with the following native libraries:

* `libweston-8` version unknown, probably 8.0.0

  Weston is not ABI stable, so they change the `.so` name with each release. Since this is "weston-8"

  we safely can assume it's 8.0.0. There were no other 8.x.x releases.

* `libpixman` version 0.34.0

* `libxkbcommon` version unknown, probably 0.7.0

  Weston 8 requires at least xkbcommon 0.3.0. Running `strings` on the `.so` shows a "0.7.0" string.

  New APIs in 0.8.0 are not present via `strings`. 0.7.2 introduced new keys which are not present in

  `strings`. So it's either 0.7.1 or 0.7.0, but we have no way of differentiating without testing for

  0.7.1's bugfixes which I'm too lazy to do.

* `libwayland-client` version unknown, probably 1.18.0

  Weston 8 requires at least wayland 1.17.0. In 1.18.0 Wayland added a `wl_global_remove` function

  which appears in `strings`.

* `libinput` version 1.8.2

  The `.so` suffix is `10.13.0` which is seemingly nonsensical. Thankfully `strings` shows that each

  version embeds a link to its documentation whose URL contains the version of 1.8.2.

* `libdrm` version unknown, 2.4.something

  The 2.4.x series has been going on for 15 years so that's a safe bet, but what patch version?

  I started bisecting the public symbols, but it wasn't yielding good results. I guessed .87 for now.

  In .98 they added a `drmIsMaster` API which is not available, so it's definitely older than that.

The headers for these versions are checked in under `device/include/`.

These were obtained by running the `pull_includes.sh` script (which you should not need to do).

The shared libraries for dynamic linking are checked in under `device/lib/`.

These were obtained by running the `pull_libs.sh` script (which you should not need to do).