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A modular Wayland compositor library
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C 98.8%
Meson 0.9%
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John Lindgren 6d197eef94 util: let wlr_box_closest_point() be within 1/65536 of right/bottom edge 
Limiting the position to (x + width - 1, y + height - 1) created a 1px
"dead zone" at monitor edges, noticeable with high-resolution mice with
motion deltas of <1px.

See: https://github.com/swaywm/sway/issues/8110

Using (x + width - 1/65536, y + height - 1/65536) instead should make
the "dead zone" small enough to be unobservable, while the value 1/65536
is still large enough to avoid rounding to zero (due to loss of
significant digits) in simple floating-point calculations.

This does expose a client-side bug in Qt layer-shell applications,
noticeable in right/bottom panels which do not accept positions beyond
(x + width - 1, x + height - 1) as valid - thus driving the cursor
to the bottom/right of the screen to click on the panel does not work.
I don't have a good workaround for this, and probably it needs to be
fixed in Qt itself.

Fixes: 3fc66d4525
("util: fix non-linear behavior of wlr_box_closest_point()")
2024-06-25 11:09:33 -04:00
.builds ci: add debugoptimized GCC build 2024-06-05 00:56:22 +02:00
.gitlab/issue_templates Add GitLab issue template 2023-10-08 11:29:13 +00:00
backend backend/drm: store drm prop lists as structs 2024-06-25 13:49:54 +00:00
docs docs: Add notes about WLR_SCENE_DISABLE_VISIBILITY effectively disabling direct scanout. 2024-05-11 11:59:36 -04:00
examples render: drop wlr_renderer_get_dmabuf_texture_formats() 2024-04-21 11:27:29 +00:00
include backend/drm: store drm prop lists as structs 2024-06-25 13:49:54 +00:00
protocol linux-drm-syncobj-v1: new protocol implementation 2024-06-12 18:40:25 +02:00
render render/vulkan: Recycle memory maps for stage spans 2024-06-24 15:55:10 +00:00
tinywl tinywl: allow specify pkg-config binary 2024-06-22 15:59:12 +00:00
types linux-drm-syncobj-v1: new protocol implementation 2024-06-12 18:40:25 +02:00
util util: let wlr_box_closest_point() be within 1/65536 of right/bottom edge 2024-06-25 11:09:33 -04:00
xcursor xcursor/wlr_xcursor: properly clean xcursor in case of realloc failure in load_callback 2024-04-18 16:47:07 +02:00
xwayland xwayland: remove saved_{width,height} 2024-04-30 15:24:40 +00:00
.editorconfig editorconfig: Unset maximum line length for .git 2024-05-25 07:54:58 +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_options.txt add an option to enable/disable libliftoff 2024-06-05 22:33:05 -06:00
meson.build add an option to enable/disable libliftoff 2024-06-05 22:33:05 -06:00
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.