Highlights for this release: - Continued work on color management infrastructure: In Weston 11, if you enable the tentative, experimental and WIP color management option, Weston will not only blend in linear light, but you can also set up a monitor ICC profile and Weston will do some kind of color mapping from sRGB to that profile. Furthermore, you can configure a monitor into HDR mode and deliver HDR characteristics from weston.ini to the monitor, but Weston will *not* produce proper HDR content yet, meaning the display is incorrect. - Various RDP improvements. - Performance improvements in the DRM backend. - Support for the wp_single_pixel_buffer_v1 protocol. - weston_buffer refactoring. - Groundwork for running multiple backends at the same time (e.g. KMS + RDP) and for multi-GPU support in the DRM backend. This is not supported yet, but may be in a future release. Breaking changes for users: - The cms-static and cms-colord plugins are now deprecated. - A number of features have been removed from desktop-shell: multiple workspaces, zoom, exposay. - wl_shell support has been removed (superseded by xdg-shell). - The fbdev backend has been removed (superseded by KMS). - weston-launch and launcher-direct have been removed (superseded by libseat). - The weston-info and weston-gears clients have been removed (weston-info is superseded by wayland-info). - The KMS max-bpc property is now set by default. If you experience black screens with (faulty) monitors, try lowering it in weston.ini. - Weston will now abort when running out of memory. Weston is not suitable for memory constrained environments. (From OE-Core rev: eb00d50e5da97a726eb6290317a3ef7d8e1b90a3) Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
Poky is an integration of various components to form a pre-packaged build system and development environment which is used as a development and validation tool by the Yocto Project. It features support for building customised embedded style device images and custom containers. There are reference demo images ranging from X11/GTK+ to Weston, commandline and more. The system supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK suitable for IDE integration.
Additional information on the specifics of hardware that Poky supports is available in README.hardware. Further hardware support can easily be added in the form of BSP layers which extend the systems capabilities in a modular way. Many layers are available and can be found through the layer index.
As an integration layer Poky consists of several upstream projects such as BitBake, OpenEmbedded-Core, Yocto documentation, the 'meta-yocto' layer which has configuration and hardware support components. These components are all part of the Yocto Project and OpenEmbedded ecosystems.
The Yocto Project has extensive documentation about the system including a reference manual which can be found at https://docs.yoctoproject.org/
OpenEmbedded is the build architecture used by Poky and the Yocto project. For information about OpenEmbedded, see the OpenEmbedded website.
Contribution Guidelines
The project works using a mailing list patch submission process. Patches should be sent to the mailing list for the repository the components originate from (see below). Throughout the Yocto Project, the README files in the component in question should detail where to send patches, who the maintainers are and where bugs should be reported.
A guide to submitting patches to OpenEmbedded is available at:
https://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded
There is good documentation on how to write/format patches at:
https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
Where to Send Patches
As Poky is an integration repository (built using a tool called combo-layer), patches against the various components should be sent to their respective upstreams:
OpenEmbedded-Core (files in meta/, meta-selftest/, meta-skeleton/, scripts/):
- Git repository: https://git.openembedded.org/openembedded-core/
- Mailing list: openembedded-core@lists.openembedded.org
BitBake (files in bitbake/):
- Git repository: https://git.openembedded.org/bitbake/
- Mailing list: bitbake-devel@lists.openembedded.org
Documentation (files in documentation/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/yocto-docs/
- Mailing list: docs@lists.yoctoproject.org
meta-yocto (files in meta-poky/, meta-yocto-bsp/):
- Git repository: https://git.yoctoproject.org/cgit/cgit.cgi/meta-yocto
- Mailing list: poky@lists.yoctoproject.org
If in doubt, check the openembedded-core git repository for the content you intend to modify as most files are from there unless clearly one of the above categories. Before sending, be sure the patches apply cleanly to the current git repository branch in question.