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Chloé Vulquin 172c8add7d xcursor: catch theme inheritance loops 
As of currently, when an xcursor theme depends on itself or another theme
that will eventually depend on it, `xcursor_load_theme` will recurse
infinitely while processing the inherits.

This change introduces a stack-allocated linked list of visited nodes
by name, and skips any already visited nodes in the inherit list.

Side effects:
* Since the linked list is stack-allocated, there is a potential for an
  overflow if there is a very long list of dependencies. If this turns out
  to be a legitimate concern, the linked list is trivial to convert to
  being heap-allocated.
* There is an existing linked list (technically doubly linked list)
  implementation in the wayland codebase. As of currently, the xcursor
  codebase does not refer to it. Consequently, this change writes a
  minimal single linked list implementation to utilize directly.

This changeset is based on the merge request in wayland/wayland!376.
The xcursor code is mostly shared between the two.
This changeset diverges the files slightly due to stylistic differences
between the repositories, but the logic is identical.

Signed-off-by: Chloé Vulquin <toast@bunkerlabs.net>
2024-04-09 11:12:03 +03:00
.builds ci: drop stale dependencies 2023-12-10 14:29:23 +01:00
.gitlab/issue_templates Add GitLab issue template 2023-10-08 11:29:13 +00:00
backend drm/backend: add support for cursor hotspots 2024-03-22 13:54:18 -05:00
docs docs: add architecture document 2023-10-10 09:50:57 +00:00
examples examples: send xdg_toplevel configure events 2024-03-15 13:20:35 +01:00
include touch: make cancel functions take a wlr_seat_client 2024-03-28 09:33:54 +00:00
protocol ext-foreign-toplevel-list-v1: new protocol implementation 2024-02-12 01:05:19 +01:00
render gles2: Avoid crash when glGetInteger64vEXT is missing 2024-03-12 19:06:21 +01:00
tinywl tinywl: destroy wlr_renderer, wlr_allocator and wlr_cursor 2024-03-14 10:07:56 +00:00
types wlr_gamma_control: Store gamma size when creating control 2024-04-01 23:00:48 +02:00
util util: fix non-linear behavior of wlr_box_closest_point() 2024-03-28 12:51:53 +00:00
xcursor xcursor: catch theme inheritance loops 2024-04-09 11:12:03 +03:00
xwayland xwayland: add wlr_xwayland_get_xwm_connection 2024-03-09 11:21:17 +00:00
.editorconfig Relax 80 column limit 2022-11-22 18:19:46 +00:00
.gitignore gitignore: remove build dir entries 2022-06-14 10:08:54 +02:00
.gitlab-ci.yml ci: add .gitlab-ci.yml 2021-11-01 16:51:18 +01:00
.mailmap mailmap: map Isaac's old email to the new one 2024-03-04 14:01:00 +01:00
CONTRIBUTING.md contributing: add safety section 2023-10-04 11:08:58 +02:00
LICENSE license: add copyright line for all contributors 2023-07-05 10:27:50 +02:00
meson.build Define _POSIX_C_SOURCE globally 2024-02-15 15:41:12 +01:00
meson_options.txt backend/session: make optional 2022-11-25 16:15:29 +00:00
README.md backend/drm: use libdisplay-info to parse EDID 2023-02-28 14:44:02 +00:00
wlroots.syms build: simplify version script 2021-06-17 11:03:21 +02:00

README.md

wlroots

Pluggable, composable, unopinionated modules for building a Wayland compositor; or about 60,000 lines of code you were going to write anyway.

  • wlroots provides backends that abstract the underlying display and input hardware, including KMS/DRM, libinput, Wayland, X11, and headless backends, plus any custom backends you choose to write, which can all be created or destroyed at runtime and used in concert with each other.
  • wlroots provides unopinionated, mostly standalone implementations of many Wayland interfaces, both from wayland.xml and various protocol extensions. We also promote the standardization of portable extensions across many compositors.
  • wlroots provides several powerful, standalone, and optional tools that implement components common to many compositors, such as the arrangement of outputs in physical space.
  • wlroots provides an Xwayland abstraction that allows you to have excellent Xwayland support without worrying about writing your own X11 window manager on top of writing your compositor.
  • wlroots provides a renderer abstraction that simple compositors can use to avoid writing GL code directly, but which steps out of the way when your needs demand custom rendering code.

wlroots implements a huge variety of Wayland compositor features and implements them right, so you can focus on the features that make your compositor unique. By using wlroots, you get high performance, excellent hardware compatibility, broad support for many wayland interfaces, and comfortable development tools - or any subset of these features you like, because all of them work independently of one another and freely compose with anything you want to implement yourself.

Check out our wiki to get started with wlroots. Join our IRC channel: #wlroots on Libera Chat.

A variety of wrapper libraries are available for using it with your favorite programming language.

Building

Install dependencies:

  • meson
  • wayland
  • wayland-protocols
  • EGL and GLESv2 (optional, for the GLES2 renderer)
  • Vulkan loader, headers and glslang (optional, for the Vulkan renderer)
  • libdrm
  • GBM (optional, for the GBM allocator)
  • libinput (optional, for the libinput backend)
  • xkbcommon
  • udev (optional, for the session)
  • pixman
  • libseat (optional, for the session)
  • hwdata (optional, for the DRM backend)
  • libdisplay-info (optional, for the DRM backend)
  • libliftoff (optional, for the DRM backend)

If you choose to enable X11 support:

  • xwayland (build-time only, optional at runtime)
  • libxcb
  • libxcb-render-util
  • libxcb-wm
  • libxcb-errors (optional, for improved error reporting)

Run these commands:

meson setup build/
ninja -C build/

Install like so:

sudo ninja -C build/ install

Contributing

See CONTRIBUTING.md.