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A modular Wayland compositor library
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Simon Ser bd566225ea scene/surface: fix NULL deref when source buffer is destroyed 
Fixes the following crash, witnessed after a GPU reset:

    #0  0x00007fba9a32774c n/a (libc.so.6 + 0x9774c)
    #1  0x00007fba9a2cddc0 raise (libc.so.6 + 0x3ddc0)
    #2  0x00007fba9a2b557a abort (libc.so.6 + 0x2557a)
    #3  0x00007fba9a2b54e3 n/a (libc.so.6 + 0x254e3)
    #4  0x00007fba9a53fb78 wlr_linux_drm_syncobj_v1_state_signal_release_with_buffer (libwlroots-0.20.so + 0x26b78)
    #5  0x00007fba9a590846 surface_reconfigure (libwlroots-0.20.so + 0x77846)
    #6  0x00007fba9a590cbb scene_surface_set_clip (libwlroots-0.20.so + 0x77cbb)
    #7  0x00007fba9a590efa subsurface_tree_set_clip (libwlroots-0.20.so + 0x77efa)
    #8  0x00007fba9a590f1f subsurface_tree_set_clip (libwlroots-0.20.so + 0x77f1f)
    #9  0x00007fba9a590f1f subsurface_tree_set_clip (libwlroots-0.20.so + 0x77f1f)
    #10 0x00007fba9a590f8d wlr_scene_subsurface_tree_set_clip (libwlroots-0.20.so + 0x77f8d)

Reported-by: Hubert Hirtz <hubert@hirtz.pm>
2025-09-11 12:33:04 +00:00
.builds ci: fetch gyosu from new upstream 2025-03-06 10:32:09 +01:00
.gitlab/issue_templates Add GitLab issue template 2023-10-08 11:29:13 +00:00
backend backend, output: send commit events after applying all in wlr_backend_commit() 2025-08-12 19:04:05 +02:00
docs render: add WLR_RENDERER_FORCE_SOFTWARE env var 2024-12-22 21:37:57 +00:00
examples fullscreen-shell: remove 2025-03-30 01:15:09 +03:00
include input-method: use NULL when emitting signals 2025-09-08 10:56:57 -04:00
protocol protocols: sync with wlr-protocols, apply non-breaking updates and doc improvements 2025-09-10 09:50:09 -04:00
render render/vulkan: remove hardcoded counts 2025-08-27 14:26:21 -04:00
subprojects build: add Meson wrap manifests for our dependencies 2024-12-22 21:24:03 +00:00
tinywl tinywl: stop generating xdg-shell header 2025-08-27 14:21:23 -04:00
types scene/surface: fix NULL deref when source buffer is destroyed 2025-09-11 12:33:04 +00:00
util util/mem: Move memdup to new util/mem.c file 2025-07-17 16:39:58 +01:00
xcursor xcursor/wlr_xcursor: properly clean xcursor in case of realloc failure in load_callback 2024-04-18 16:47:07 +02:00
xwayland xwm: add support for _NET_WM_ICON 2025-06-26 08:50:02 +00:00
.editorconfig editorconfig: Unset maximum line length for .git 2024-05-25 07:54:58 +00:00
.gitignore git: fix incorrect subprojects ignore in .gitignore 2025-03-23 13:24:15 +01:00
.gitlab-ci.yml ci: generate and publish HTML documentation 2025-01-31 15:27:03 +00:00
.mailmap .mailmap: add myself 2024-08-05 19:32:24 +03:00
CONTRIBUTING.md CONTRIBUTING.md: mention listener list assertions 2025-01-20 16:17:12 +03:00
LICENSE license: add copyright line for all contributors 2023-07-05 10:27:50 +02:00
meson.build fixes: add implementation 2025-08-13 20:41:21 +00:00
meson.options render/allocator: add udmabuf allocator 2024-12-22 21:37:57 +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.