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A modular Wayland compositor library
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Jesper Jensen 07e92fb868 output/cursor: Fix double cursor bug 
When we fail to render the cursor (in my case because the cursor is too
large) we bail out of the output_cursor_attempt_hardware function. This
causes output_cursor_set_texture to clean up after us, but we've already
cleared the hardware_cursor, and so output_disable_hardware_cursor
thinks we don't have a hardware cursor to disable.

We shouldn't modify the hardware_cursor variable before we've
successfully changed the hardware cursor, this way the caller can clean
up after us like it expect to.

This was brought up by an actual bug when playing the game Kaizen. Which
uses oddly sized cursors, that fell back to software cursors for me, and
left the hardware cursor hanging around. This change has been tested to
fix that.

During the testing of this change, I have noticed that the previous code
worked fine the first time the cursor was switch to software. It only
failed on subsequent attempts. I haven't figured out why that is.
2025-08-07 22:25:39 +02:00
.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/drm: relay full HDR metadata 2025-06-26 11:02:26 +00:00
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 wlr_ext_data_control_v1: Make all listeners private 2025-07-30 12:37:19 +00:00
protocol meson: bump minimum wayland-protocols version 2025-07-24 14:51:37 +00:00
render render/vulkan: destroy vulkan instance when drm phdev mismatch 2025-07-15 08:59:37 +08:00
subprojects build: add Meson wrap manifests for our dependencies 2024-12-22 21:24:03 +00:00
tinywl tinywl: fix cursor disappears when focused window is closed 2025-07-25 12:56:05 +00:00
types output/cursor: Fix double cursor bug 2025-08-07 22:25:39 +02:00
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 Add support for XKB_LED_NAME_COMPOSE and XKB_LED_NAME_KANA USB HID LEDs 2025-05-15 09:14:48 +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.