meta-flutter

Yocto Layer for Flutter Engine

Project Status

Building Engine master for 32-bit and 64-bit. Engine pulls in Clang 11.0. This is used for both build flavors.

Gallery validated on Raspberry Pi 3 64-bit. To get text to show up properly, not only do you need the fonts installed on the target, but the engine needs to be built with fontconfig enabled.

Next Up

• wayland client on top of the wlroots compositor

• client for https://wiki.automotivelinux.org/subsystem/graphics/weston-ivi-shell

rpi3-64 running the Flutter Gallery App

Overview

This layer includes everything to build:

Flutter Engine for armv7/aarch64/x86/x86_64
Wayland Flutter Shell
Flutter Gallery Demo

depot_tools

flutter-engine

flutter-engine depends on depot_tools-native. Wayland is not required to build.

pugixml

waylandpp

waylandpp-native is dependent on pugixml

futter-wayland

depends on waylandpp

Platform Channel Callbacks

Accessibility - stubbed
Platform Channel - stubbed
Text Input - stubbed
Platform Views - stubbed
URL Launcher - complete
Connectivity / Status - stubbed
Video Player / Events - stubbed

GStreamer playback to Texture via DBUS control is my current plan.

flutter-sdk

flutter-gallery

depdends on SDK. Provides pattern to follow for the remaining examples.

The Flutter engine build uses the GN meta-build system in conjunction with Chrome Infrastructure Package Deployment (CIPD).

The build uses depot-tools to sync repos, and CI packages. A pre-built Clang toolchain is downloaded as part of the build.

Layers used in development

meta
meta-poky
meta-oe
meta-multimedia
meta-networking
meta-perl
meta-python
meta-raspberrypi
meta-flutter

Development image

This workspace can be used for any Raspberry Pi machine type https://github.com/jwinarske/manifests/blob/zeus/rpi64-flutter.xml