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Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: wdisplays
Upstream-Contact: Jason Francis <jason@cycles.network>
Source: <https://cyclopsian.github.io/wdisplays>
Files: README.md .gitignore
Copyright: 2020 Jason Francis <jason@cycles.network>
License: CC0-1.0
Files: resources/style.css resources/wdisplays.desktop.in resources/*.ui
resources/resources.xml.in
Copyright: 2020 Jason Francis <jason@cycles.network>
License: GPL-3.0-or-later
Files: wdisplays.png resources/wdisplays.svg
Copyright: 2020 Jason Francis <jason@cycles.network>
License: CC-BY-SA-4.0
Files: protocol/wlr-layer-shell-unstable-v1.xml
Copyright: 2017 Drew DeVault
License: MIT
Files: protocol/wlr-output-management-unstable-v1.xml
Copyright: 2019 Purism SPC
License: MIT
Files: protocol/wlr-screencopy-unstable-v1.xml
Copyright: 2018 Simon Ser
License: MIT

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licenses /why-not-lgpl.html>.

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MIT License Copyright (c) <year> <copyright holders>
Permission is hereby granted, free of charge, to any person obtaining a copy
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OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# wdisplays
[![License: GPL 3.0 or later][license-img]][license-spdx]
wdisplays is a graphical application for configuring displays in Wayland
compositors. It borrows some code from [kanshi]. It should work in any
compositor that implements the wlr-output-management-unstable-v1 protocol.
Compositors that are known to support the protocol are [Sway] and [Wayfire].
The goal of this project is to allow precise adjustment of display settings in
kiosks, digital signage, and other elaborate multi-monitor setups.
![Screenshot](wdisplays.png)
# Installation
[![Repology][repology-img]][repology-pkg]
Check your distro for a `wdisplays` package. Known distro packages:
- [Alpine](https://pkgs.alpinelinux.org/package/edge/testing/x86_64/wdisplays)
- [Arch](https://aur.archlinux.org/packages/wdisplays-git/)
- [Debian](https://packages.debian.org/sid/wdisplays)
- [Fedora](https://copr.fedorainfracloud.org/coprs/wef/wdisplays/)
- [FreeBSD](https://svnweb.freebsd.org/ports/head/x11/wdisplays/)
- [Nix](https://github.com/NixOS/nixpkgs/tree/master/pkgs/tools/graphics/wdisplays)
- [OpenSUSE](https://build.opensuse.org/package/show/home%3AMWh3/wdisplays)
# Building
Build requirements are:
- meson
- GTK+3
- epoxy
- wayland-client
```sh
meson build
ninja -C build
sudo ninja -C build install
```
# Usage
Displays can be moved around the virtual screen space by clicking and dragging
them in the preview on the left panel. By default, they will snap to one
another. Hold Shift while dragging to disable snapping. You can click and drag
with the middle mouse button to pan. Zoom in and out either with the buttons on
the top left, or by holding Ctrl and scrolling the mouse wheel. Fine tune your
adjustments in the right panel, then click apply.
There are some options available by clicking the menu button on the top left:
- Automatically Apply Changes: Makes it so you don't have to hit apply. Disable
this for making minor adjustments, but be careful, you may end up with an
unusable setup.
- Show Screen Contents: Shows a live preview of the screens in the left panel.
Turn off to reduce energy usage.
- Overlay Screen Names: Shows big names in the corner of all screens for easy
identification. Disable if they get in the way.
# FAQ
### What is this?
It's intended to be the Wayland equivalent of an xrandr GUI, like [ARandR].
### I'm using Sway, why aren't my display settings saved when I log out?
Sway, like i3, doesn't save any settings unless you put them in the config
file. See man `sway-output`. If you want to have multiple configurations
depending on the monitors connected, you'll need to use an external program
like [kanshi]. Integration with that and other external daemons is planned.
### How do I add support to my compositor?
A minimal amount of code (approximately 150-200 LOC) is currently required to
get support for this in wlroots compositors. See the diff here for a sample
implementation on top of tinywl: [tinywl-output-management].
[kanshi]: https://github.com/emersion/kanshi
[Sway]: https://swaywm.org
[Wayfire]: https://wayfire.org
[ARandR]: https://christian.amsuess.com/tools/arandr/
[tinywl-output-management]: https://git.sr.ht/~jf/tinywl-output-management/commit/87a45d89ae0e7975e2a59f84e960380dd2f5ac08
[license-img]: https://img.shields.io/badge/License-GPL%203.0%20or%20later-blue.svg?logo=gnu
[license-spdx]: https://spdx.org/licenses/GPL-3.0-or-later.html
[repology-img]: https://repology.org/badge/tiny-repos/wdisplays.svg
[repology-pkg]: https://repology.org/project/wdisplays/versions

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<!DOCTYPE html>
<html lang="en">
<head>
<title>wdisplays</title>
<style>
* { font-family: sans-serif; color: #333; }
body { background: #ddd; margin: 0; }
.content { width: 1024px; margin: auto; display: flex; }
header .container { margin: 0.5em; }
header .title { display: flex; flex: 1; }
header .icon { width: 78px; margin: 0 8px; }
header .text { flex: 1; display: flex; flex-direction: column; align-self: center; }
header h1 { font-size: 20pt; font-weight: bold; margin: 0; }
header h2 { font-size: 12pt; font-weight: normal; margin: 0; }
header .links { display: flex; margin: 0; padding: 0; }
header .links li { align-self: stretch; font-size: 12pt; list-style-type: none; margin: 0; }
header .links a { padding: 0 2em; display: inline-block; height: 100%; line-height: 67px; vertical-align: middle; }
footer .content { color: #888; text-align: center; display: block; padding: 0.5em; }
a { color: #1a5fb4; text-decoration: none; }
a:hover { color: #2e7ddd; }
a:active { color: #448ce1; }
#splash { background: #bbb; }
#splash li { list-style-type: none; }
#splash .text { margin: 0.5em; flex: 1; }
#splash h1 { font-size: 12pt; margin: 0.25em 0; }
#splash .screenshot img { height: 302px; width: 545px; }
@media only screen and (max-width: 1024px) {
.content { width: 100% }
}
@media only screen and (max-width: 800px) {
#splash .content { flex-direction: column-reverse; }
#splash .screenshot img { height: auto; width: 100%; }
header h1 { font-size: 12pt; }
header h2 { font-size: 8pt; }
}
@media only screen and (max-width: 500px) {
header .links { justify-content: center; }
header .links a { padding: 0; line-height: 1em; }
header .content { flex-direction: column; }
}
</style>
</head>
<body>
<header>
<div class="container">
<div class="content">
<span class="title">
<span><img src="./wdisplays.svg" class="icon" alt="Icon"></span>
<span class="text">
<h1>wdisplays</h1>
<h2>wlroots display GUI</h2>
</span>
</span>
<ul class="links">
<li>
<a href="https://github.com/cyclopsian/wdisplays">Source Code</a>
</li>
</ul>
</div>
</div>
</header>
<section id="splash">
<span class="content">
<span class="text">
<h1>Get control of your Wayland displays.</h1>
<p>
Use wdisplays to arrange your monitors how you like them. Adjust your
screen size and positioning visually, or enter in precise values.
Use the live screen preview to align your screen to its content.
Makes configuring multi-monitor setups a breeze.
</p>
<p>
Works with
popular wlroots compositors like <a href="https://swaywm.org">Sway</a>
and <a href="https://wayfire.org">Wayfire</a>.
</p>
</span>
<a href="./shot1.png" title="Screenshot" class="screenshot">
<img src="./shot1.png" alt="Screenshot">
</a>
</span>
</section>
<footer>
<div class="content">
Copyright © 2020 Jason Francis.
<br>
Page content licensed under
<a href="https://creativecommons.org/licenses/by-sa/4.0/legalcode">CC-BY-SA-4.0</a>.
</div>
</footer>
</body>
</html>

14
meson.build Normal file
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# SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
# SPDX-License-Identifier: CC0-1.0
project('network.cycles.wdisplays', 'c', license: 'MIT', version: '1.0')
conf = configuration_data({
'app_id': meson.project_name(),
'version': meson.project_version(),
'resource_prefix': '/' / '/'.join(meson.project_name().split('.')),
})
subdir('protocol')
subdir('resources')
subdir('src')

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protocol/meson.build Normal file
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# SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
# SPDX-License-Identifier: CC0-1.0
wayland_scanner = find_program('wayland-scanner')
wayland_client = dependency('wayland-client')
wayland_protos = dependency('wayland-protocols', version: '>=1.17')
wl_protocol_dir = wayland_protos.get_pkgconfig_variable('pkgdatadir')
wayland_scanner_code = generator(
wayland_scanner,
output: '@BASENAME@-protocol.c',
arguments: ['private-code', '@INPUT@', '@OUTPUT@'],
)
wayland_scanner_client = generator(
wayland_scanner,
output: '@BASENAME@-client-protocol.h',
arguments: ['client-header', '@INPUT@', '@OUTPUT@'],
)
client_protocols = [
[wl_protocol_dir, 'unstable/xdg-output/xdg-output-unstable-v1.xml'],
[wl_protocol_dir, 'stable/xdg-shell/xdg-shell.xml'],
['wlr-output-management-unstable-v1.xml'],
['wlr-screencopy-unstable-v1.xml'],
['wlr-layer-shell-unstable-v1.xml']
]
client_protos_src = []
client_protos_headers = []
foreach p : client_protocols
xml = join_paths(p)
client_protos_src += wayland_scanner_code.process(xml)
client_protos_headers += wayland_scanner_client.process(xml)
endforeach
lib_client_protos = static_library(
'client_protos',
client_protos_src + client_protos_headers,
dependencies: [wayland_client]
)
client_protos = declare_dependency(
link_with: lib_client_protos,
sources: client_protos_headers,
)

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_layer_shell_unstable_v1">
<copyright>
Copyright © 2017 Drew DeVault
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<interface name="zwlr_layer_shell_v1" version="1">
<description summary="create surfaces that are layers of the desktop">
Clients can use this interface to assign the surface_layer role to
wl_surfaces. Such surfaces are assigned to a "layer" of the output and
rendered with a defined z-depth respective to each other. They may also be
anchored to the edges and corners of a screen and specify input handling
semantics. This interface should be suitable for the implementation of
many desktop shell components, and a broad number of other applications
that interact with the desktop.
</description>
<request name="get_layer_surface">
<description summary="create a layer_surface from a surface">
Create a layer surface for an existing surface. This assigns the role of
layer_surface, or raises a protocol error if another role is already
assigned.
Creating a layer surface from a wl_surface which has a buffer attached
or committed is a client error, and any attempts by a client to attach
or manipulate a buffer prior to the first layer_surface.configure call
must also be treated as errors.
You may pass NULL for output to allow the compositor to decide which
output to use. Generally this will be the one that the user most
recently interacted with.
Clients can specify a namespace that defines the purpose of the layer
surface.
</description>
<arg name="id" type="new_id" interface="zwlr_layer_surface_v1"/>
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="output" type="object" interface="wl_output" allow-null="true"/>
<arg name="layer" type="uint" enum="layer" summary="layer to add this surface to"/>
<arg name="namespace" type="string" summary="namespace for the layer surface"/>
</request>
<enum name="error">
<entry name="role" value="0" summary="wl_surface has another role"/>
<entry name="invalid_layer" value="1" summary="layer value is invalid"/>
<entry name="already_constructed" value="2" summary="wl_surface has a buffer attached or committed"/>
</enum>
<enum name="layer">
<description summary="available layers for surfaces">
These values indicate which layers a surface can be rendered in. They
are ordered by z depth, bottom-most first. Traditional shell surfaces
will typically be rendered between the bottom and top layers.
Fullscreen shell surfaces are typically rendered at the top layer.
Multiple surfaces can share a single layer, and ordering within a
single layer is undefined.
</description>
<entry name="background" value="0"/>
<entry name="bottom" value="1"/>
<entry name="top" value="2"/>
<entry name="overlay" value="3"/>
</enum>
</interface>
<interface name="zwlr_layer_surface_v1" version="1">
<description summary="layer metadata interface">
An interface that may be implemented by a wl_surface, for surfaces that
are designed to be rendered as a layer of a stacked desktop-like
environment.
Layer surface state (size, anchor, exclusive zone, margin, interactivity)
is double-buffered, and will be applied at the time wl_surface.commit of
the corresponding wl_surface is called.
</description>
<request name="set_size">
<description summary="sets the size of the surface">
Sets the size of the surface in surface-local coordinates. The
compositor will display the surface centered with respect to its
anchors.
If you pass 0 for either value, the compositor will assign it and
inform you of the assignment in the configure event. You must set your
anchor to opposite edges in the dimensions you omit; not doing so is a
protocol error. Both values are 0 by default.
Size is double-buffered, see wl_surface.commit.
</description>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</request>
<request name="set_anchor">
<description summary="configures the anchor point of the surface">
Requests that the compositor anchor the surface to the specified edges
and corners. If two orthoginal edges are specified (e.g. 'top' and
'left'), then the anchor point will be the intersection of the edges
(e.g. the top left corner of the output); otherwise the anchor point
will be centered on that edge, or in the center if none is specified.
Anchor is double-buffered, see wl_surface.commit.
</description>
<arg name="anchor" type="uint" enum="anchor"/>
</request>
<request name="set_exclusive_zone">
<description summary="configures the exclusive geometry of this surface">
Requests that the compositor avoids occluding an area of the surface
with other surfaces. The compositor's use of this information is
implementation-dependent - do not assume that this region will not
actually be occluded.
A positive value is only meaningful if the surface is anchored to an
edge, rather than a corner. The zone is the number of surface-local
coordinates from the edge that are considered exclusive.
Surfaces that do not wish to have an exclusive zone may instead specify
how they should interact with surfaces that do. If set to zero, the
surface indicates that it would like to be moved to avoid occluding
surfaces with a positive excluzive zone. If set to -1, the surface
indicates that it would not like to be moved to accommodate for other
surfaces, and the compositor should extend it all the way to the edges
it is anchored to.
For example, a panel might set its exclusive zone to 10, so that
maximized shell surfaces are not shown on top of it. A notification
might set its exclusive zone to 0, so that it is moved to avoid
occluding the panel, but shell surfaces are shown underneath it. A
wallpaper or lock screen might set their exclusive zone to -1, so that
they stretch below or over the panel.
The default value is 0.
Exclusive zone is double-buffered, see wl_surface.commit.
</description>
<arg name="zone" type="int"/>
</request>
<request name="set_margin">
<description summary="sets a margin from the anchor point">
Requests that the surface be placed some distance away from the anchor
point on the output, in surface-local coordinates. Setting this value
for edges you are not anchored to has no effect.
The exclusive zone includes the margin.
Margin is double-buffered, see wl_surface.commit.
</description>
<arg name="top" type="int"/>
<arg name="right" type="int"/>
<arg name="bottom" type="int"/>
<arg name="left" type="int"/>
</request>
<request name="set_keyboard_interactivity">
<description summary="requests keyboard events">
Set to 1 to request that the seat send keyboard events to this layer
surface. For layers below the shell surface layer, the seat will use
normal focus semantics. For layers above the shell surface layers, the
seat will always give exclusive keyboard focus to the top-most layer
which has keyboard interactivity set to true.
Layer surfaces receive pointer, touch, and tablet events normally. If
you do not want to receive them, set the input region on your surface
to an empty region.
Events is double-buffered, see wl_surface.commit.
</description>
<arg name="keyboard_interactivity" type="uint"/>
</request>
<request name="get_popup">
<description summary="assign this layer_surface as an xdg_popup parent">
This assigns an xdg_popup's parent to this layer_surface. This popup
should have been created via xdg_surface::get_popup with the parent set
to NULL, and this request must be invoked before committing the popup's
initial state.
See the documentation of xdg_popup for more details about what an
xdg_popup is and how it is used.
</description>
<arg name="popup" type="object" interface="xdg_popup"/>
</request>
<request name="ack_configure">
<description summary="ack a configure event">
When a configure event is received, if a client commits the
surface in response to the configure event, then the client
must make an ack_configure request sometime before the commit
request, passing along the serial of the configure event.
If the client receives multiple configure events before it
can respond to one, it only has to ack the last configure event.
A client is not required to commit immediately after sending
an ack_configure request - it may even ack_configure several times
before its next surface commit.
A client may send multiple ack_configure requests before committing, but
only the last request sent before a commit indicates which configure
event the client really is responding to.
</description>
<arg name="serial" type="uint" summary="the serial from the configure event"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the layer_surface">
This request destroys the layer surface.
</description>
</request>
<event name="configure">
<description summary="suggest a surface change">
The configure event asks the client to resize its surface.
Clients should arrange their surface for the new states, and then send
an ack_configure request with the serial sent in this configure event at
some point before committing the new surface.
The client is free to dismiss all but the last configure event it
received.
The width and height arguments specify the size of the window in
surface-local coordinates.
The size is a hint, in the sense that the client is free to ignore it if
it doesn't resize, pick a smaller size (to satisfy aspect ratio or
resize in steps of NxM pixels). If the client picks a smaller size and
is anchored to two opposite anchors (e.g. 'top' and 'bottom'), the
surface will be centered on this axis.
If the width or height arguments are zero, it means the client should
decide its own window dimension.
</description>
<arg name="serial" type="uint"/>
<arg name="width" type="uint"/>
<arg name="height" type="uint"/>
</event>
<event name="closed">
<description summary="surface should be closed">
The closed event is sent by the compositor when the surface will no
longer be shown. The output may have been destroyed or the user may
have asked for it to be removed. Further changes to the surface will be
ignored. The client should destroy the resource after receiving this
event, and create a new surface if they so choose.
</description>
</event>
<enum name="error">
<entry name="invalid_surface_state" value="0" summary="provided surface state is invalid"/>
<entry name="invalid_size" value="1" summary="size is invalid"/>
<entry name="invalid_anchor" value="2" summary="anchor bitfield is invalid"/>
</enum>
<enum name="anchor" bitfield="true">
<entry name="top" value="1" summary="the top edge of the anchor rectangle"/>
<entry name="bottom" value="2" summary="the bottom edge of the anchor rectangle"/>
<entry name="left" value="4" summary="the left edge of the anchor rectangle"/>
<entry name="right" value="8" summary="the right edge of the anchor rectangle"/>
</enum>
</interface>
</protocol>

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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_output_management_unstable_v1">
<copyright>
Copyright © 2019 Purism SPC
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that copyright notice and this permission
notice appear in supporting documentation, and that the name of
the copyright holders not be used in advertising or publicity
pertaining to distribution of the software without specific,
written prior permission. The copyright holders make no
representations about the suitability of this software for any
purpose. It is provided "as is" without express or implied
warranty.
THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
THIS SOFTWARE.
</copyright>
<description summary="protocol to configure output devices">
This protocol exposes interfaces to obtain and modify output device
configuration.
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<interface name="zwlr_output_manager_v1" version="1">
<description summary="output device configuration manager">
This interface is a manager that allows reading and writing the current
output device configuration.
Output devices that display pixels (e.g. a physical monitor or a virtual
output in a window) are represented as heads. Heads cannot be created nor
destroyed by the client, but they can be enabled or disabled and their
properties can be changed. Each head may have one or more available modes.
Whenever a head appears (e.g. a monitor is plugged in), it will be
advertised via the head event. Immediately after the output manager is
bound, all current heads are advertised.
Whenever a head's properties change, the relevant wlr_output_head events
will be sent. Not all head properties will be sent: only properties that
have changed need to.
Whenever a head disappears (e.g. a monitor is unplugged), a
wlr_output_head.finished event will be sent.
After one or more heads appear, change or disappear, the done event will
be sent. It carries a serial which can be used in a create_configuration
request to update heads properties.
The information obtained from this protocol should only be used for output
configuration purposes. This protocol is not designed to be a generic
output property advertisement protocol for regular clients. Instead,
protocols such as xdg-output should be used.
</description>
<event name="head">
<description summary="introduce a new head">
This event introduces a new head. This happens whenever a new head
appears (e.g. a monitor is plugged in) or after the output manager is
bound.
</description>
<arg name="head" type="new_id" interface="zwlr_output_head_v1"/>
</event>
<event name="done">
<description summary="sent all information about current configuration">
This event is sent after all information has been sent after binding to
the output manager object and after any subsequent changes. This applies
to child head and mode objects as well. In other words, this event is
sent whenever a head or mode is created or destroyed and whenever one of
their properties has been changed. Not all state is re-sent each time
the current configuration changes: only the actual changes are sent.
This allows changes to the output configuration to be seen as atomic,
even if they happen via multiple events.
A serial is sent to be used in a future create_configuration request.
</description>
<arg name="serial" type="uint" summary="current configuration serial"/>
</event>
<request name="create_configuration">
<description summary="create a new output configuration object">
Create a new output configuration object. This allows to update head
properties.
</description>
<arg name="id" type="new_id" interface="zwlr_output_configuration_v1"/>
<arg name="serial" type="uint"/>
</request>
<request name="stop">
<description summary="stop sending events">
Indicates the client no longer wishes to receive events for output
configuration changes. However the compositor may emit further events,
until the finished event is emitted.
The client must not send any more requests after this one.
</description>
</request>
<event name="finished">
<description summary="the compositor has finished with the manager">
This event indicates that the compositor is done sending manager events.
The compositor will destroy the object immediately after sending this
event, so it will become invalid and the client should release any
resources associated with it.
</description>
</event>
</interface>
<interface name="zwlr_output_head_v1" version="1">
<description summary="output device">
A head is an output device. The difference between a wl_output object and
a head is that heads are advertised even if they are turned off. A head
object only advertises properties and cannot be used directly to change
them.
A head has some read-only properties: modes, name, description and
physical_size. These cannot be changed by clients.
Other properties can be updated via a wlr_output_configuration object.
Properties sent via this interface are applied atomically via the
wlr_output_manager.done event. No guarantees are made regarding the order
in which properties are sent.
</description>
<event name="name">
<description summary="head name">
This event describes the head name.
The naming convention is compositor defined, but limited to alphanumeric
characters and dashes (-). Each name is unique among all wlr_output_head
objects, but if a wlr_output_head object is destroyed the same name may
be reused later. The names will also remain consistent across sessions
with the same hardware and software configuration.
Examples of names include 'HDMI-A-1', 'WL-1', 'X11-1', etc. However, do
not assume that the name is a reflection of an underlying DRM
connector, X11 connection, etc.
If the compositor implements the xdg-output protocol and this head is
enabled, the xdg_output.name event must report the same name.
The name event is sent after a wlr_output_head object is created. This
event is only sent once per object, and the name does not change over
the lifetime of the wlr_output_head object.
</description>
<arg name="name" type="string"/>
</event>
<event name="description">
<description summary="head description">
This event describes a human-readable description of the head.
The description is a UTF-8 string with no convention defined for its
contents. Examples might include 'Foocorp 11" Display' or 'Virtual X11
output via :1'. However, do not assume that the name is a reflection of
the make, model, serial of the underlying DRM connector or the display
name of the underlying X11 connection, etc.
If the compositor implements xdg-output and this head is enabled,
the xdg_output.description must report the same description.
The description event is sent after a wlr_output_head object is created.
This event is only sent once per object, and the description does not
change over the lifetime of the wlr_output_head object.
</description>
<arg name="description" type="string"/>
</event>
<event name="physical_size">
<description summary="head physical size">
This event describes the physical size of the head. This event is only
sent if the head has a physical size (e.g. is not a projector or a
virtual device).
</description>
<arg name="width" type="int" summary="width in millimeters of the output"/>
<arg name="height" type="int" summary="height in millimeters of the output"/>
</event>
<event name="mode">
<description summary="introduce a mode">
This event introduces a mode for this head. It is sent once per
supported mode.
</description>
<arg name="mode" type="new_id" interface="zwlr_output_mode_v1"/>
</event>
<event name="enabled">
<description summary="head is enabled or disabled">
This event describes whether the head is enabled. A disabled head is not
mapped to a region of the global compositor space.
When a head is disabled, some properties (current_mode, position,
transform and scale) are irrelevant.
</description>
<arg name="enabled" type="int" summary="zero if disabled, non-zero if enabled"/>
</event>
<event name="current_mode">
<description summary="current mode">
This event describes the mode currently in use for this head. It is only
sent if the output is enabled.
</description>
<arg name="mode" type="object" interface="zwlr_output_mode_v1"/>
</event>
<event name="position">
<description summary="current position">
This events describes the position of the head in the global compositor
space. It is only sent if the output is enabled.
</description>
<arg name="x" type="int"
summary="x position within the global compositor space"/>
<arg name="y" type="int"
summary="y position within the global compositor space"/>
</event>
<event name="transform">
<description summary="current transformation">
This event describes the transformation currently applied to the head.
It is only sent if the output is enabled.
</description>
<arg name="transform" type="int" enum="wl_output.transform"/>
</event>
<event name="scale">
<description summary="current scale">
This events describes the scale of the head in the global compositor
space. It is only sent if the output is enabled.
</description>
<arg name="scale" type="fixed"/>
</event>
<event name="finished">
<description summary="the head has been destroyed">
The compositor will destroy the object immediately after sending this
event, so it will become invalid and the client should release any
resources associated with it.
</description>
</event>
</interface>
<interface name="zwlr_output_mode_v1" version="1">
<description summary="output mode">
This object describes an output mode.
Some heads don't support output modes, in which case modes won't be
advertised.
Properties sent via this interface are applied atomically via the
wlr_output_manager.done event. No guarantees are made regarding the order
in which properties are sent.
</description>
<event name="size">
<description summary="mode size">
This event describes the mode size. The size is given in physical
hardware units of the output device. This is not necessarily the same as
the output size in the global compositor space. For instance, the output
may be scaled or transformed.
</description>
<arg name="width" type="int" summary="width of the mode in hardware units"/>
<arg name="height" type="int" summary="height of the mode in hardware units"/>
</event>
<event name="refresh">
<description summary="mode refresh rate">
This event describes the mode's fixed vertical refresh rate. It is only
sent if the mode has a fixed refresh rate.
</description>
<arg name="refresh" type="int" summary="vertical refresh rate in mHz"/>
</event>
<event name="preferred">
<description summary="mode is preferred">
This event advertises this mode as preferred.
</description>
</event>
<event name="finished">
<description summary="the mode has been destroyed">
The compositor will destroy the object immediately after sending this
event, so it will become invalid and the client should release any
resources associated with it.
</description>
</event>
</interface>
<interface name="zwlr_output_configuration_v1" version="1">
<description summary="output configuration">
This object is used by the client to describe a full output configuration.
First, the client needs to setup the output configuration. Each head can
be either enabled (and configured) or disabled. It is a protocol error to
send two enable_head or disable_head requests with the same head. It is a
protocol error to omit a head in a configuration.
Then, the client can apply or test the configuration. The compositor will
then reply with a succeeded, failed or cancelled event. Finally the client
should destroy the configuration object.
</description>
<enum name="error">
<entry name="already_configured_head" value="1"
summary="head has been configured twice"/>
<entry name="unconfigured_head" value="2"
summary="head has not been configured"/>
<entry name="already_used" value="3"
summary="request sent after configuration has been applied or tested"/>
</enum>
<request name="enable_head">
<description summary="enable and configure a head">
Enable a head. This request creates a head configuration object that can
be used to change the head's properties.
</description>
<arg name="id" type="new_id" interface="zwlr_output_configuration_head_v1"
summary="a new object to configure the head"/>
<arg name="head" type="object" interface="zwlr_output_head_v1"
summary="the head to be enabled"/>
</request>
<request name="disable_head">
<description summary="disable a head">
Disable a head.
</description>
<arg name="head" type="object" interface="zwlr_output_head_v1"
summary="the head to be disabled"/>
</request>
<request name="apply">
<description summary="apply the configuration">
Apply the new output configuration.
In case the configuration is successfully applied, there is no guarantee
that the new output state matches completely the requested
configuration. For instance, a compositor might round the scale if it
doesn't support fractional scaling.
After this request has been sent, the compositor must respond with an
succeeded, failed or cancelled event. Sending a request that isn't the
destructor is a protocol error.
</description>
</request>
<request name="test">
<description summary="test the configuration">
Test the new output configuration. The configuration won't be applied,
but will only be validated.
Even if the compositor succeeds to test a configuration, applying it may
fail.
After this request has been sent, the compositor must respond with an
succeeded, failed or cancelled event. Sending a request that isn't the
destructor is a protocol error.
</description>
</request>
<event name="succeeded">
<description summary="configuration changes succeeded">
Sent after the compositor has successfully applied the changes or
tested them.
Upon receiving this event, the client should destroy this object.
If the current configuration has changed, events to describe the changes
will be sent followed by a wlr_output_manager.done event.
</description>
</event>
<event name="failed">
<description summary="configuration changes failed">
Sent if the compositor rejects the changes or failed to apply them. The
compositor should revert any changes made by the apply request that
triggered this event.
Upon receiving this event, the client should destroy this object.
</description>
</event>
<event name="cancelled">
<description summary="configuration has been cancelled">
Sent if the compositor cancels the configuration because the state of an
output changed and the client has outdated information (e.g. after an
output has been hotplugged).
The client can create a new configuration with a newer serial and try
again.
Upon receiving this event, the client should destroy this object.
</description>
</event>
<request name="destroy" type="destructor">
<description summary="destroy the output configuration">
Using this request a client can tell the compositor that it is not going
to use the configuration object anymore. Any changes to the outputs
that have not been applied will be discarded.
This request also destroys wlr_output_configuration_head objects created
via this object.
</description>
</request>
</interface>
<interface name="zwlr_output_configuration_head_v1" version="1">
<description summary="head configuration">
This object is used by the client to update a single head's configuration.
It is a protocol error to set the same property twice.
</description>
<enum name="error">
<entry name="already_set" value="1" summary="property has already been set"/>
<entry name="invalid_mode" value="2" summary="mode doesn't belong to head"/>
<entry name="invalid_custom_mode" value="3" summary="mode is invalid"/>
<entry name="invalid_transform" value="4" summary="transform value outside enum"/>
<entry name="invalid_scale" value="5" summary="scale negative or zero"/>
</enum>
<request name="set_mode">
<description summary="set the mode">
This request sets the head's mode.
</description>
<arg name="mode" type="object" interface="zwlr_output_mode_v1"/>
</request>
<request name="set_custom_mode">
<description summary="set a custom mode">
This request assigns a custom mode to the head. The size is given in
physical hardware units of the output device. If set to zero, the
refresh rate is unspecified.
It is a protocol error to set both a mode and a custom mode.
</description>
<arg name="width" type="int" summary="width of the mode in hardware units"/>
<arg name="height" type="int" summary="height of the mode in hardware units"/>
<arg name="refresh" type="int" summary="vertical refresh rate in mHz or zero"/>
</request>
<request name="set_position">
<description summary="set the position">
This request sets the head's position in the global compositor space.
</description>
<arg name="x" type="int" summary="x position in the global compositor space"/>
<arg name="y" type="int" summary="y position in the global compositor space"/>
</request>
<request name="set_transform">
<description summary="set the transform">
This request sets the head's transform.
</description>
<arg name="transform" type="int" enum="wl_output.transform"/>
</request>
<request name="set_scale">
<description summary="set the scale">
This request sets the head's scale.
</description>
<arg name="scale" type="fixed"/>
</request>
</interface>
</protocol>

179
protocol/wlr-screencopy-unstable-v1.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<protocol name="wlr_screencopy_unstable_v1">
<copyright>
Copyright © 2018 Simon Ser
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
</copyright>
<description summary="screen content capturing on client buffers">
This protocol allows clients to ask the compositor to copy part of the
screen content to a client buffer.
Warning! The protocol described in this file is experimental and
backward incompatible changes may be made. Backward compatible changes
may be added together with the corresponding interface version bump.
Backward incompatible changes are done by bumping the version number in
the protocol and interface names and resetting the interface version.
Once the protocol is to be declared stable, the 'z' prefix and the
version number in the protocol and interface names are removed and the
interface version number is reset.
</description>
<interface name="zwlr_screencopy_manager_v1" version="1">
<description summary="manager to inform clients and begin capturing">
This object is a manager which offers requests to start capturing from a
source.
</description>
<request name="capture_output">
<description summary="capture an output">
Capture the next frame of an entire output.
</description>
<arg name="frame" type="new_id" interface="zwlr_screencopy_frame_v1"/>
<arg name="overlay_cursor" type="int"
summary="composite cursor onto the frame"/>
<arg name="output" type="object" interface="wl_output"/>
</request>
<request name="capture_output_region">
<description summary="capture an output's region">
Capture the next frame of an output's region.
The region is given in output logical coordinates, see
xdg_output.logical_size. The region will be clipped to the output's
extents.
</description>
<arg name="frame" type="new_id" interface="zwlr_screencopy_frame_v1"/>
<arg name="overlay_cursor" type="int"
summary="composite cursor onto the frame"/>
<arg name="output" type="object" interface="wl_output"/>
<arg name="x" type="int"/>
<arg name="y" type="int"/>
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<request name="destroy" type="destructor">
<description summary="destroy the manager">
All objects created by the manager will still remain valid, until their
appropriate destroy request has been called.
</description>
</request>
</interface>
<interface name="zwlr_screencopy_frame_v1" version="1">
<description summary="a frame ready for copy">
This object represents a single frame.
When created, a "buffer" event will be sent. The client will then be able
to send a "copy" request. If the capture is successful, the compositor
will send a "flags" followed by a "ready" event.
If the capture failed, the "failed" event is sent. This can happen anytime
before the "ready" event.
Once either a "ready" or a "failed" event is received, the client should
destroy the frame.
</description>
<event name="buffer">
<description summary="buffer information">
Provides information about the frame's buffer. This event is sent once
as soon as the frame is created.
The client should then create a buffer with the provided attributes, and
send a "copy" request.
</description>
<arg name="format" type="uint" summary="buffer format"/>
<arg name="width" type="uint" summary="buffer width"/>
<arg name="height" type="uint" summary="buffer height"/>
<arg name="stride" type="uint" summary="buffer stride"/>
</event>
<request name="copy">
<description summary="copy the frame">
Copy the frame to the supplied buffer. The buffer must have a the
correct size, see zwlr_screencopy_frame_v1.buffer. The buffer needs to
have a supported format.
If the frame is successfully copied, a "flags" and a "ready" events are
sent. Otherwise, a "failed" event is sent.
</description>
<arg name="buffer" type="object" interface="wl_buffer"/>
</request>
<enum name="error">
<entry name="already_used" value="0"
summary="the object has already been used to copy a wl_buffer"/>
<entry name="invalid_buffer" value="1"
summary="buffer attributes are invalid"/>
</enum>
<enum name="flags" bitfield="true">
<entry name="y_invert" value="1" summary="contents are y-inverted"/>
</enum>
<event name="flags">
<description summary="frame flags">
Provides flags about the frame. This event is sent once before the
"ready" event.
</description>
<arg name="flags" type="uint" enum="flags" summary="frame flags"/>
</event>
<event name="ready">
<description summary="indicates frame is available for reading">
Called as soon as the frame is copied, indicating it is available
for reading. This event includes the time at which presentation happened
at.
The timestamp is expressed as tv_sec_hi, tv_sec_lo, tv_nsec triples,
each component being an unsigned 32-bit value. Whole seconds are in
tv_sec which is a 64-bit value combined from tv_sec_hi and tv_sec_lo,
and the additional fractional part in tv_nsec as nanoseconds. Hence,
for valid timestamps tv_nsec must be in [0, 999999999]. The seconds part
may have an arbitrary offset at start.
After receiving this event, the client should destroy the object.
</description>
<arg name="tv_sec_hi" type="uint"
summary="high 32 bits of the seconds part of the timestamp"/>
<arg name="tv_sec_lo" type="uint"
summary="low 32 bits of the seconds part of the timestamp"/>
<arg name="tv_nsec" type="uint"
summary="nanoseconds part of the timestamp"/>
</event>
<event name="failed">
<description summary="frame copy failed">
This event indicates that the attempted frame copy has failed.
After receiving this event, the client should destroy the object.
</description>
</event>
<request name="destroy" type="destructor">
<description summary="delete this object, used or not">
Destroys the frame. This request can be sent at any time by the client.
</description>
</request>
</interface>
</protocol>

398
resources/head.ui Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.22.2 -->
<interface>
<requires lib="gtk+" version="3.22"/>
<object class="GtkAdjustment" id="height_adjustment">
<property name="upper">16383</property>
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkAdjustment" id="pos_x_adjustment">
<property name="upper">16383</property>
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkAdjustment" id="pos_y_adjustment">
<property name="upper">16383</property>
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkAdjustment" id="refresh_adjustment">
<property name="upper">2147483.647</property>
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkAdjustment" id="scale_adjustment">
<property name="lower">0.01</property>
<property name="upper">99999</property>
<property name="step_increment">0.1</property>
<property name="page_increment">0.5</property>
</object>
<object class="GtkAdjustment" id="width_adjustment">
<property name="upper">16383</property>
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<template class="WdHeadForm" parent="GtkGrid">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="margin_start">8</property>
<property name="margin_end">8</property>
<property name="margin_top">8</property>
<property name="margin_bottom">8</property>
<property name="row_spacing">8</property>
<property name="column_spacing">16</property>
<property name="row_homogeneous">True</property>
<child>
<object class="GtkCheckButton" id="enabled">
<property name="label" translatable="yes">_Enabled</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">False</property>
<property name="halign">start</property>
<property name="use_underline">True</property>
<property name="draw_indicator">True</property>
<signal name="toggled" handler="enabled_toggled" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkLabel" id="description">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="wrap">True</property>
<property name="wrap_mode">word-char</property>
<property name="ellipsize">end</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkSpinButton" id="scale">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="halign">start</property>
<property name="width_chars">9</property>
<property name="adjustment">scale_adjustment</property>
<property name="digits">2</property>
<property name="value">1</property>
<signal name="value-changed" handler="position_spin_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">3</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">DPI _Scale</property>
<property name="use_underline">True</property>
<property name="mnemonic_widget">scale</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">3</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">_Position</property>
<property name="use_underline">True</property>
<property name="mnemonic_widget">pos_x</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">4</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Description</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkLabel" id="physical_size">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="wrap">True</property>
<property name="wrap_mode">word-char</property>
<property name="ellipsize">end</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">2</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Physical Size</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">2</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Si_ze</property>
<property name="use_underline">True</property>
<property name="mnemonic_widget">width</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">5</property>
</packing>
</child>
<child>
<object class="GtkBox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">start</property>
<property name="spacing">8</property>
<child>
<object class="GtkSpinButton" id="refresh">
<property name="name">refresh</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="width_chars">9</property>
<property name="input_purpose">number</property>
<property name="adjustment">refresh_adjustment</property>
<property name="digits">3</property>
<property name="numeric">True</property>
<property name="update_policy">if-valid</property>
<signal name="value-changed" handler="mode_spin_changed" swapped="no"/>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Hz</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">6</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">_Refresh Rate</property>
<property name="use_underline">True</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">6</property>
</packing>
</child>
<child>
<object class="GtkMenuButton" id="rotate_button">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">7</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">_Transform</property>
<property name="use_underline">True</property>
<property name="xalign">1</property>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">7</property>
</packing>
</child>
<child>
<object class="GtkCheckButton" id="flipped">
<property name="label" translatable="yes">_Flipped</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">False</property>
<property name="halign">start</property>
<property name="use_underline">True</property>
<property name="draw_indicator">True</property>
<signal name="toggled" handler="flipped_toggled" swapped="no"/>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">8</property>
</packing>
</child>
<child>
<object class="GtkGrid">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="row_spacing">8</property>
<child>
<object class="GtkSpinButton" id="pos_x">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="width_chars">6</property>
<property name="text" translatable="yes">0</property>
<property name="input_purpose">number</property>
<property name="adjustment">pos_x_adjustment</property>
<property name="numeric">True</property>
<property name="update_policy">if-valid</property>
<signal name="value-changed" handler="position_spin_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkSpinButton" id="pos_y">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="width_chars">6</property>
<property name="text" translatable="yes">0</property>
<property name="input_purpose">number</property>
<property name="adjustment">pos_y_adjustment</property>
<property name="numeric">True</property>
<property name="update_policy">if-valid</property>
<signal name="value-changed" handler="position_spin_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">2</property>
<property name="top_attach">0</property>
</packing>
</child>
<child>
<object class="GtkSpinButton" id="width">
<property name="name">width</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="width_chars">4</property>
<property name="text" translatable="yes">0</property>
<property name="input_purpose">number</property>
<property name="adjustment">width_adjustment</property>
<property name="numeric">True</property>
<property name="update_policy">if-valid</property>
<signal name="value-changed" handler="mode_spin_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">0</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkLabel">
<property name="width_request">20</property>
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">×</property>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkSpinButton" id="height">
<property name="name">height</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="width_chars">4</property>
<property name="text" translatable="yes">0</property>
<property name="input_purpose">number</property>
<property name="adjustment">height_adjustment</property>
<property name="numeric">True</property>
<property name="update_policy">if-valid</property>
<signal name="value-changed" handler="mode_spin_changed" swapped="no"/>
</object>
<packing>
<property name="left_attach">2</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<object class="GtkMenuButton" id="mode_button">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="tooltip_text" translatable="yes">Select Mode Preset</property>
<property name="margin_start">8</property>
<child>
<object class="GtkImage">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="icon_name">view-more-symbolic</property>
</object>
</child>
</object>
<packing>
<property name="left_attach">3</property>
<property name="top_attach">1</property>
</packing>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="left_attach">1</property>
<property name="top_attach">4</property>
<property name="height">2</property>
</packing>
</child>
<child>
<placeholder/>
</child>
<child>
<placeholder/>
</child>
</template>
</interface>

47
resources/meson.build Normal file
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@ -0,0 +1,47 @@
# SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
# SPDX-License-Identifier: CC0-1.0
resources_xml = configure_file(
input: 'resources.xml.in',
output: 'resources.xml',
configuration: conf
)
gnome = import('gnome')
resources = gnome.compile_resources(
'wdisplays-resources', resources_xml,
source_dir : '.',
c_name : 'wdisplays_resources')
scour = find_program('scour', required: false)
icon = 'wdisplays.svg'
icondir = get_option('datadir') / 'icons' / 'hicolor' / 'scalable' / 'apps'
if scour.found()
custom_target('optimize-icon',
input: icon,
output: '@0@.svg'.format(meson.project_name()),
command: [scour,
'--enable-viewboxing',
'--enable-comment-stripping',
'--remove-descriptive-elements',
'--enable-id-stripping',
'--shorten-ids',
'--create-groups',
'--strip-xml-space',
'--strip-xml-prolog',
'--indent=none',
'--no-line-breaks',
'@INPUT@', '@OUTPUT@'],
install: true,
install_dir: icondir)
else
install_data(icon, install_dir: icondir)
endif
install_data(
configure_file(input: 'wdisplays.desktop.in',
output: '@0@.desktop'.format(meson.project_name()),
configuration: conf),
install_dir: get_option('datadir') / 'applications')

8
resources/resources.xml.in Normal file
View File

@ -0,0 +1,8 @@
<?xml version="1.0" encoding="UTF-8"?>
<gresources>
<gresource prefix="@resource_prefix@">
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22
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spinner {
opacity: 0;
transition: opacity 200ms ease-in-out;
background-color: rgba(64, 64, 64, 0.5);
}
spinner.visible {
opacity: 1;
}
.output-overlay {
font-size: 96px;
background-color: @theme_selected_bg_color;
color: @theme_selected_fg_color;
border-radius: 8px;
opacity: 0.9;
padding: 8px;
}
.output-overlay .description {
font-size: 12px;
}

7
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[Desktop Entry]
Version=@version@
Type=Application
Name=wdisplays
Comment=Wlroots display configuration
Exec=wdisplays
Icon=@app_id@

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<?xml version="1.0" encoding="UTF-8"?>
<!-- Generated with glade 3.22.0 -->
<interface>
<requires lib="gtk+" version="3.22"/>
<!-- interface-css-provider-path style.css -->
<object class="GtkAdjustment" id="canvas_horiz">
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkAdjustment" id="canvas_vert">
<property name="step_increment">1</property>
<property name="page_increment">10</property>
</object>
<object class="GtkWindow" id="heads_window">
<property name="can_focus">False</property>
<property name="title" translatable="yes">wdisplays</property>
<signal name="destroy" handler="destroy" swapped="no"/>
<child>
<object class="GtkOverlay" id="overlay">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkBox" id="main_box">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkInfoBar" id="heads_info">
<property name="can_focus">False</property>
<property name="no_show_all">True</property>
<property name="valign">start</property>
<property name="message_type">error</property>
<property name="show_close_button">True</property>
<property name="revealed">False</property>
<signal name="response" handler="info_response" swapped="no"/>
<child internal-child="action_area">
<object class="GtkButtonBox">
<property name="can_focus">False</property>
<property name="spacing">6</property>
<property name="layout_style">end</property>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">False</property>
<property name="position">0</property>
</packing>
</child>
<child internal-child="content_area">
<object class="GtkBox">
<property name="can_focus">False</property>
<property name="spacing">16</property>
<child>
<object class="GtkLabel" id="heads_info_label">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="wrap">True</property>
<property name="xalign">0</property>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkPaned">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="position">400</property>
<property name="position_set">True</property>
<child>
<object class="GtkScrolledWindow" id="heads_scroll">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="hadjustment">canvas_horiz</property>
<property name="vadjustment">canvas_vert</property>
<property name="min_content_width">100</property>
<property name="min_content_height">300</property>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="resize">True</property>
<property name="shrink">False</property>
</packing>
</child>
<child>
<object class="GtkBox">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="orientation">vertical</property>
<child>
<object class="GtkStackSwitcher" id="heads_stack_switcher">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="halign">center</property>
<property name="margin_start">8</property>
<property name="margin_end">8</property>
<property name="margin_top">8</property>
<property name="hexpand">True</property>
<property name="stack">heads_stack</property>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<object class="GtkStack" id="heads_stack">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="transition_type">crossfade</property>
<child>
<placeholder/>
</child>
</object>
<packing>
<property name="expand">False</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="resize">False</property>
<property name="shrink">False</property>
</packing>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="index">-1</property>
</packing>
</child>
<child type="overlay">
<object class="GtkSpinner" id="spinner">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="no_show_all">True</property>
<property name="hexpand">True</property>
<property name="vexpand">True</property>
</object>
<packing>
<property name="pass_through">True</property>
</packing>
</child>
</object>
</child>
<child type="titlebar">
<object class="GtkStack" id="header_stack">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="transition_type">crossfade</property>
<child>
<object class="GtkHeaderBar">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="title" translatable="yes">wdisplays</property>
<property name="has_subtitle">False</property>
<property name="show_close_button">True</property>
<child>
<object class="GtkButtonBox" id="zoom_box">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<object class="GtkButton" id="zoom_out">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="tooltip_text" translatable="yes">Zoom Out</property>
<property name="action_name">app.zoom-out</property>
<accelerator key="minus" signal="clicked" modifiers="GDK_CONTROL_MASK"/>
<child>
<object class="GtkImage">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="icon_name">zoom-out-symbolic</property>
</object>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
<property name="non_homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkButton" id="zoom_reset">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="tooltip_text" translatable="yes">Zoom Reset</property>
<property name="action_name">app.zoom-reset</property>
<accelerator key="0" signal="clicked" modifiers="GDK_CONTROL_MASK"/>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
<property name="non_homogeneous">True</property>
</packing>
</child>
<child>
<object class="GtkButton" id="zoom_in">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="tooltip_text" translatable="yes">Zoom In</property>
<property name="action_name">app.zoom-in</property>
<accelerator key="equal" signal="clicked" modifiers="GDK_CONTROL_MASK"/>
<child>
<object class="GtkImage">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="icon_name">zoom-in-symbolic</property>
</object>
</child>
</object>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">2</property>
<property name="non_homogeneous">True</property>
</packing>
</child>
<style>
<class name="linked"/>
</style>
</object>
</child>
<child>
<object class="GtkMenuButton" id="menu_button">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<child>
<object class="GtkImage">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="icon_name">open-menu-symbolic</property>
</object>
</child>
</object>
<packing>
<property name="pack_type">end</property>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="name">title</property>
</packing>
</child>
<child>
<object class="GtkHeaderBar">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child type="title">
<object class="GtkLabel">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">Apply Changes?</property>
</object>
</child>
<child>
<object class="GtkButton">
<property name="label" translatable="yes">_Apply</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="use_underline">True</property>
<property name="action_name">app.apply-changes</property>
<style>
<class name="suggested-action"/>
</style>
</object>
<packing>
<property name="pack_type">end</property>
</packing>
</child>
<child>
<object class="GtkButton">
<property name="label" translatable="yes">_Cancel</property>
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="receives_default">True</property>
<property name="use_underline">True</property>
<property name="action_name">app.cancel-changes</property>
</object>
<packing>
<property name="position">1</property>
</packing>
</child>
</object>
<packing>
<property name="name">apply</property>
<property name="position">1</property>
</packing>
</child>
</object>
</child>
</object>
</interface>

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#ifndef WDISPLAY_CONFIG_H
#define WDISPLAY_CONFIG_H
#define WDISPLAYS_APP_ID "@app_id@"
#define WDISPLAYS_VERSION "@version@"
#define WDISPLAYS_RESOURCE_PREFIX "@resource_prefix@"
#endif

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#include "glviewport.h"
typedef struct _WdGLViewportPrivate {
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
guint hscroll_policy : 1;
guint vscroll_policy : 1;
} WdGLViewportPrivate;
enum {
PROP_0,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY
};
static void wd_gl_viewport_set_property(
GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void wd_gl_viewport_get_property(
GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
G_DEFINE_TYPE_WITH_CODE(WdGLViewport, wd_gl_viewport, GTK_TYPE_GL_AREA,
G_ADD_PRIVATE(WdGLViewport)
G_IMPLEMENT_INTERFACE(GTK_TYPE_SCROLLABLE, NULL))
static void wd_gl_viewport_class_init(WdGLViewportClass *class) {
GObjectClass *gobject_class = G_OBJECT_CLASS(class);
gobject_class->set_property = wd_gl_viewport_set_property;
gobject_class->get_property = wd_gl_viewport_get_property;
g_object_class_override_property(gobject_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property(gobject_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property(gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property(gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
}
static void viewport_set_adjustment(GtkAdjustment *adjustment,
GtkAdjustment **store) {
if (!adjustment) {
adjustment = gtk_adjustment_new(0., 0., 0., 0., 0., 0.);
}
if (adjustment != *store) {
if (*store != NULL) {
g_object_unref(*store);
}
*store = adjustment;
g_object_ref_sink(adjustment);
}
}
static void wd_gl_viewport_set_property(
GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) {
WdGLViewport *viewport = WD_GL_VIEWPORT(object);
WdGLViewportPrivate *priv = wd_gl_viewport_get_instance_private(viewport);
switch (prop_id) {
case PROP_HADJUSTMENT:
viewport_set_adjustment(g_value_get_object(value), &priv->hadjustment);
break;
case PROP_VADJUSTMENT:
viewport_set_adjustment(g_value_get_object(value), &priv->vadjustment);
break;
case PROP_HSCROLL_POLICY:
if (priv->hscroll_policy != g_value_get_enum(value)) {
priv->hscroll_policy = g_value_get_enum(value);
g_object_notify_by_pspec(object, pspec);
}
break;
case PROP_VSCROLL_POLICY:
if (priv->vscroll_policy != g_value_get_enum(value)) {
priv->vscroll_policy = g_value_get_enum(value);
g_object_notify_by_pspec (object, pspec);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void wd_gl_viewport_get_property(
GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) {
WdGLViewport *viewport = WD_GL_VIEWPORT(object);
WdGLViewportPrivate *priv = wd_gl_viewport_get_instance_private(viewport);
switch (prop_id) {
case PROP_HADJUSTMENT:
g_value_set_object(value, priv->hadjustment);
break;
case PROP_VADJUSTMENT:
g_value_set_object(value, priv->vadjustment);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum(value, priv->hscroll_policy);
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum(value, priv->vscroll_policy);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void wd_gl_viewport_init(WdGLViewport *viewport) {
}
GtkWidget *wd_gl_viewport_new(void) {
return gtk_widget_new(WD_TYPE_GL_VIEWPORT, NULL);
}

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#ifndef WDISPLAY_GLVIEWPORT_H
#define WDISPLAY_GLVIEWPORT_H
#include <gtk/gtk.h>
G_BEGIN_DECLS
#define WD_TYPE_GL_VIEWPORT (wd_gl_viewport_get_type())
G_DECLARE_DERIVABLE_TYPE(
WdGLViewport, wd_gl_viewport, WD, GL_VIEWPORT,GtkGLArea)
struct _WdGLViewportClass {
GtkGLAreaClass parent_class;
};
GtkWidget *wd_gl_viewport_new(void);
G_END_DECLS
#endif

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#include "headform.h"
#include "wdisplays.h"
typedef struct _WdHeadFormPrivate {
GtkWidget *enabled;
GtkWidget *description;
GtkWidget *physical_size;
GtkWidget *scale;
GtkWidget *pos_x;
GtkWidget *pos_y;
GtkWidget *width;
GtkWidget *height;
GtkWidget *refresh;
GtkWidget *mode_button;
GtkWidget *rotate_button;
GtkWidget *flipped;
GAction *mode_action;
GAction *rotate_action;
} WdHeadFormPrivate;
enum {
CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
G_DEFINE_TYPE_WITH_CODE(WdHeadForm, wd_head_form, GTK_TYPE_GRID,
G_ADD_PRIVATE(WdHeadForm))
static const char *HEAD_PREFIX = "head";
static const char *MODE_PREFIX = "mode";
static const char *ROTATE_PREFIX = "rotate";
static void head_form_update_sensitivity(WdHeadForm *form) {
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
bool enabled_toggled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->enabled));
g_autoptr(GList) children = gtk_container_get_children(GTK_CONTAINER(form));
for (GList *child = children; child != NULL; child = child->next) {
GtkWidget *widget = GTK_WIDGET(child->data);
if (widget != priv->enabled) {
gtk_widget_set_sensitive(widget, enabled_toggled);
}
}
}
static GVariant *create_mode_variant(int32_t w, int32_t h, int32_t r) {
GVariant * const children[] = {
g_variant_new_int32(w),
g_variant_new_int32(h),
g_variant_new_int32(r),
};
return g_variant_new_tuple(children, G_N_ELEMENTS(children));
}
struct vid_mode {
int32_t width;
int32_t height;
int32_t refresh;
};
static void unpack_mode_variant(GVariant *value, struct vid_mode *mode) {
g_autoptr(GVariant) width = g_variant_get_child_value(value, 0);
mode->width = g_variant_get_int32(width);
g_autoptr(GVariant) height = g_variant_get_child_value(value, 1);
mode->height = g_variant_get_int32(height);
g_autoptr(GVariant) refresh = g_variant_get_child_value(value, 2);
mode->refresh = g_variant_get_int32(refresh);
}
static void enabled_toggled(GtkToggleButton *toggle, gpointer data) {
WdHeadForm *form = WD_HEAD_FORM(data);
head_form_update_sensitivity(form);
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_ENABLED);
}
static void mode_spin_changed(GtkSpinButton *spin_button, gpointer data) {
WdHeadForm *form = WD_HEAD_FORM(data);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
struct vid_mode mode;
GVariant *value = g_action_get_state(priv->mode_action);
unpack_mode_variant(value, &mode);
if (strcmp(gtk_widget_get_name(GTK_WIDGET(spin_button)), "width") == 0) {
mode.width = gtk_spin_button_get_value(spin_button);
} else if (strcmp(gtk_widget_get_name(GTK_WIDGET(spin_button)), "height") == 0) {
mode.height = gtk_spin_button_get_value(spin_button);
} else if (strcmp(gtk_widget_get_name(GTK_WIDGET(spin_button)), "refresh") == 0) {
mode.refresh = gtk_spin_button_get_value(spin_button) * 1000.;
}
g_action_activate(priv->mode_action, create_mode_variant(mode.width, mode.height, mode.refresh));
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_MODE);
}
static void position_spin_changed(GtkSpinButton *spin_button, gpointer data) {
WdHeadForm *form = WD_HEAD_FORM(data);
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_POSITION);
}
static void flipped_toggled(GtkToggleButton *toggle, gpointer data) {
WdHeadForm *form = WD_HEAD_FORM(data);
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_TRANSFORM);
}
static void wd_head_form_class_init(WdHeadFormClass *class) {
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
signals[CHANGED] = g_signal_new("changed",
G_OBJECT_CLASS_TYPE(class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET(WdHeadFormClass, changed),
NULL, NULL, NULL,
G_TYPE_NONE, 1, G_TYPE_INT);
gtk_widget_class_set_template_from_resource(widget_class,
WDISPLAYS_RESOURCE_PREFIX "/head.ui");
gtk_widget_class_bind_template_callback(widget_class, enabled_toggled);
gtk_widget_class_bind_template_callback(widget_class, mode_spin_changed);
gtk_widget_class_bind_template_callback(widget_class, position_spin_changed);
gtk_widget_class_bind_template_callback(widget_class, flipped_toggled);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, enabled);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, description);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, physical_size);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, scale);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, pos_x);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, pos_y);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, width);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, height);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, refresh);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, mode_button);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, rotate_button);
gtk_widget_class_bind_template_child_private(widget_class, WdHeadForm, flipped);
gtk_widget_class_set_css_name(widget_class, "wd-head-form");
}
static int32_t get_rotate_value(enum wl_output_transform transform) {
if (transform == WL_OUTPUT_TRANSFORM_90 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_90) {
return 90;
} else if (transform == WL_OUTPUT_TRANSFORM_180 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_180) {
return 180;
} else if (transform == WL_OUTPUT_TRANSFORM_270 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_270) {
return 270;
}
return 0;
}
static void rotate_selected(GSimpleAction *action, GVariant *param, gpointer data) {
WdHeadForm *form = data;
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
GMenuModel *menu = gtk_menu_button_get_menu_model(GTK_MENU_BUTTON(priv->rotate_button));
int items = g_menu_model_get_n_items(menu);
for (int i = 0; i < items; i++) {
g_autoptr(GVariant) target = g_menu_model_get_item_attribute_value(menu, i, G_MENU_ATTRIBUTE_TARGET, NULL);
g_autoptr(GVariant) label = g_menu_model_get_item_attribute_value(menu, i, G_MENU_ATTRIBUTE_LABEL, NULL);
if (g_variant_get_int32(target) == g_variant_get_int32(param)) {
gtk_button_set_label(GTK_BUTTON(priv->rotate_button), g_variant_get_string(label, NULL));
break;
}
}
g_simple_action_set_state(action, param);
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_TRANSFORM);
}
static void mode_selected(GSimpleAction *action, GVariant *param, gpointer data) {
WdHeadForm *form = data;
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
struct vid_mode mode;
unpack_mode_variant(param, &mode);
g_simple_action_set_state(action, param);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->width), mode.width);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->height), mode.height);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->refresh), mode.refresh / 1000.);
g_signal_emit(form, signals[CHANGED], 0, WD_FIELD_MODE);
}
static void wd_head_form_init(WdHeadForm *form) {
gtk_widget_init_template(GTK_WIDGET(form));
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
GSimpleActionGroup *head_actions = g_simple_action_group_new();
gtk_widget_insert_action_group(priv->mode_button, HEAD_PREFIX, G_ACTION_GROUP(head_actions));
gtk_widget_insert_action_group(priv->rotate_button, HEAD_PREFIX, G_ACTION_GROUP(head_actions));
GMenu *rotate_menu = g_menu_new();
g_menu_append(rotate_menu, "Don't Rotate", "head.rotate(0)");
g_menu_append(rotate_menu, "Rotate 90°", "head.rotate(90)");
g_menu_append(rotate_menu, "Rotate 180°", "head.rotate(180)");
g_menu_append(rotate_menu, "Rotate 270°", "head.rotate(270)");
gtk_menu_button_set_menu_model(GTK_MENU_BUTTON(priv->rotate_button), G_MENU_MODEL(rotate_menu));
static const GVariantType * const mode_types[] = {
G_VARIANT_TYPE_INT32,
G_VARIANT_TYPE_INT32,
G_VARIANT_TYPE_INT32
};
GSimpleAction *action = g_simple_action_new_stateful("mode",
g_variant_type_new_tuple(mode_types, G_N_ELEMENTS(mode_types)),
create_mode_variant(0, 0, 0));
g_action_map_add_action(G_ACTION_MAP(head_actions), G_ACTION(action));
g_signal_connect(action, "change-state", G_CALLBACK(mode_selected), form);
g_object_unref(action);
priv->mode_action = G_ACTION(action);
action = g_simple_action_new_stateful(ROTATE_PREFIX, G_VARIANT_TYPE_INT32,
g_variant_new_int32(0));
g_action_map_add_action(G_ACTION_MAP(head_actions), G_ACTION(action));
g_signal_connect(action, "change-state", G_CALLBACK(rotate_selected), form);
g_object_unref(action);
priv->rotate_action = G_ACTION(action);
g_object_unref(head_actions);
}
void wd_head_form_update(WdHeadForm *form, const struct wd_head *head,
enum wd_head_fields fields) {
g_return_if_fail(form);
g_return_if_fail(head);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
if (!fields)
return;
if (fields & WD_FIELD_DESCRIPTION)
gtk_label_set_text(GTK_LABEL(priv->description), head->description);
if (fields & WD_FIELD_PHYSICAL_SIZE) {
g_autofree gchar *physical_str = g_strdup_printf("%dmm × %dmm", head->phys_width, head->phys_height);
gtk_label_set_text(GTK_LABEL(priv->physical_size), physical_str);
}
if (fields & WD_FIELD_ENABLED)
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(priv->enabled), head->enabled);
if (fields & WD_FIELD_SCALE)
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->scale), head->scale);
if (fields & WD_FIELD_POSITION) {
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->pos_x), head->x);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->pos_y), head->y);
}
if (fields & WD_FIELD_MODE) {
GMenu *mode_menu = g_menu_new();
struct wd_mode *mode;
g_autofree gchar *action = g_strdup_printf("%s.%s", HEAD_PREFIX, MODE_PREFIX);
wl_list_for_each(mode, &head->modes, link) {
g_autofree gchar *name = g_strdup_printf("%d×%d@%0.3fHz", mode->width, mode->height, mode->refresh / 1000.);
GMenuItem *item = g_menu_item_new(name, action);
g_menu_item_set_attribute_value(item, G_MENU_ATTRIBUTE_TARGET,
create_mode_variant(mode->width, mode->height, mode->refresh));
g_menu_append_item(mode_menu, item);
}
gtk_menu_button_set_menu_model(GTK_MENU_BUTTON(priv->mode_button), G_MENU_MODEL(mode_menu));
// Mode entries
int w = head->custom_mode.width;
int h = head->custom_mode.height;
int r = head->custom_mode.refresh;
if (head->enabled && head->mode != NULL) {
w = head->mode->width;
h = head->mode->height;
r = head->mode->refresh;
} else if (!head->enabled && w == 0 && h == 0) {
struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->preferred) {
w = mode->width;
h = mode->height;
r = mode->refresh;
break;
}
}
}
g_action_change_state(priv->mode_action, create_mode_variant(w, h, r));
}
if (fields & WD_FIELD_TRANSFORM) {
int active_rotate = get_rotate_value(head->transform);
g_action_change_state(priv->rotate_action, g_variant_new_int32(active_rotate));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(priv->flipped),
head->transform == WL_OUTPUT_TRANSFORM_FLIPPED
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_90
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_180
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_270);
}
// Sync state
if (fields & WD_FIELD_ENABLED) {
head_form_update_sensitivity(form);
}
g_signal_emit(form, signals[CHANGED], 0);
}
GtkWidget *wd_head_form_new(void) {
return gtk_widget_new(WD_TYPE_HEAD_FORM, NULL);
}
gboolean wd_head_form_get_enabled(WdHeadForm *form) {
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->enabled));
}
gboolean wd_head_form_has_changes(WdHeadForm *form, const struct wd_head *head) {
g_return_val_if_fail(form, FALSE);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
if (head->enabled != gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->enabled))) {
return TRUE;
}
double old_scale = round(head->scale * 100.) / 100.;
double new_scale = round(gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->scale)) * 100.) / 100.;
if (old_scale != new_scale) {
return TRUE;
}
if (head->x != gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_x))) {
return TRUE;
}
if (head->y != gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_y))) {
return TRUE;
}
int w = head->mode != NULL ? head->mode->width : head->custom_mode.width;
if (w != gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->width))) {
return TRUE;
}
int h = head->mode != NULL ? head->mode->height : head->custom_mode.height;
if (h != gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->height))) {
return TRUE;
}
int r = head->mode != NULL ? head->mode->refresh : head->custom_mode.refresh;
if (r / 1000. != gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->refresh))) {
return TRUE;
}
if (g_variant_get_int32(g_action_get_state(priv->rotate_action)) != get_rotate_value(head->transform)) {
return TRUE;
}
bool flipped = head->transform == WL_OUTPUT_TRANSFORM_FLIPPED
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_90
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_180
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_270;
if (flipped != gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->flipped))) {
return TRUE;
}
return FALSE;
}
void wd_head_form_fill_config(WdHeadForm *form, struct wd_head_config *output) {
g_return_if_fail(form);
g_return_if_fail(output);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
output->enabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->enabled));
output->scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->scale));
output->x = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_x));
output->y = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_y));
output->width = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->width));
output->height = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->height));
output->refresh = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->refresh)) * 1000.;
int32_t rotate = g_variant_get_int32(g_action_get_state(priv->rotate_action));
gboolean flipped = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->flipped));
switch (rotate) {
case 0: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED : WL_OUTPUT_TRANSFORM_NORMAL; break;
case 90: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_90 : WL_OUTPUT_TRANSFORM_90; break;
case 180: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_180 : WL_OUTPUT_TRANSFORM_180; break;
case 270: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_270 : WL_OUTPUT_TRANSFORM_270; break;
}
}
void wd_head_form_get_dimensions(WdHeadForm *form, WdHeadDimensions *dimensions) {
g_return_if_fail(form);
g_return_if_fail(dimensions);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
dimensions->x = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_x));
dimensions->y = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->pos_y));
dimensions->w = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->width));
dimensions->h = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->height));
dimensions->scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(priv->scale));
dimensions->rotation_id = g_variant_get_int32(g_action_get_state(priv->rotate_action)) / 90;
dimensions->flipped = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(priv->flipped));
}
void wd_head_form_set_position(WdHeadForm *form, double x, double y) {
g_return_if_fail(form);
WdHeadFormPrivate *priv = wd_head_form_get_instance_private(form);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->pos_x), x);
gtk_spin_button_set_value(GTK_SPIN_BUTTON(priv->pos_y), y);
}

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#ifndef WDISPLAY_HEADFORM_H
#define WDISPLAY_HEADFORM_H
#include <gtk/gtk.h>
G_BEGIN_DECLS
enum wd_head_fields {
WD_FIELD_NAME = 1 << 0,
WD_FIELD_ENABLED = 1 << 1,
WD_FIELD_DESCRIPTION = 1 << 2,
WD_FIELD_PHYSICAL_SIZE = 1 << 3,
WD_FIELD_SCALE = 1 << 4,
WD_FIELD_POSITION = 1 << 5,
WD_FIELD_MODE = 1 << 6,
WD_FIELD_TRANSFORM = 1 << 7,
WD_FIELDS_ALL = (1 << 8) - 1
};
#define WD_TYPE_HEAD_FORM (wd_head_form_get_type())
G_DECLARE_DERIVABLE_TYPE(
WdHeadForm, wd_head_form, WD, HEAD_FORM, GtkGrid)
struct _WdHeadFormClass {
GtkGridClass parent_class;
void (*changed)(WdHeadForm *form, enum wd_head_fields fields);
};
struct wd_head;
struct wd_head_config;
typedef struct _WdHeadDimensions {
gdouble x;
gdouble y;
gdouble w;
gdouble h;
gdouble scale;
int rotation_id;
gboolean flipped;
} WdHeadDimensions;
GtkWidget *wd_head_form_new(void);
gboolean wd_head_form_get_enabled(WdHeadForm *form);
gboolean wd_head_form_has_changes(WdHeadForm *form, const struct wd_head *head);
void wd_head_form_update(WdHeadForm *form, const struct wd_head *head,
enum wd_head_fields fields);
void wd_head_form_fill_config(WdHeadForm *form, struct wd_head_config *output);
void wd_head_form_get_dimensions(WdHeadForm *form, WdHeadDimensions *dimensions);
void wd_head_form_set_position(WdHeadForm *form, double x, double y);
G_END_DECLS
#endif

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src/meson.build Normal file
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# SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
# SPDX-License-Identifier: CC0-1.0
cc = meson.get_compiler('c')
m_dep = cc.find_library('m', required : false)
rt_dep = cc.find_library('rt', required : false)
gdk = dependency('gdk-3.0', version: '>= 3.24')
gtk = dependency('gtk+-3.0', version: '>= 3.24')
assert(gdk.get_pkgconfig_variable('targets').split().contains('wayland'), 'Wayland GDK backend not present')
epoxy = dependency('epoxy')
configure_file(input: 'config.h.in', output: 'config.h', configuration: conf)
executable(
'wdisplays',
[
'main.c',
'glviewport.c',
'headform.c',
'outputs.c',
'overlay.c',
'render.c',
resources,
],
dependencies : [
m_dep,
rt_dep,
wayland_client,
client_protos,
epoxy,
gtk
],
install: true
)

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/* SPDX-FileCopyrightText: 2019 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
/* SPDX-FileCopyrightText: 2017-2019 Simon Ser
* SPDX-License-Identifier: MIT */
/*
* Parts of this file are taken from emersion/kanshi:
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/main.c
*/
#define _GNU_SOURCE
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include "wdisplays.h"
#include "wlr-output-management-unstable-v1-client-protocol.h"
#include "xdg-output-unstable-v1-client-protocol.h"
#include "wlr-screencopy-unstable-v1-client-protocol.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
static void noop() {
// This space is intentionally left blank
}
struct wd_pending_config {
struct wd_state *state;
struct wl_list *outputs;
};
static void destroy_pending(struct wd_pending_config *pending) {
struct wd_head_config *output, *tmp;
wl_list_for_each_safe(output, tmp, pending->outputs, link) {
wl_list_remove(&output->link);
free(output);
}
free(pending->outputs);
free(pending);
}
static void config_handle_succeeded(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_apply_done(pending->state, pending->outputs);
destroy_pending(pending);
}
static void config_handle_failed(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_apply_done(pending->state, NULL);
wd_ui_show_error(pending->state,
"The display server was not able to process your changes.");
destroy_pending(pending);
}
static void config_handle_cancelled(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_apply_done(pending->state, NULL);
wd_ui_show_error(pending->state,
"The display configuration was modified by the server before updates were processed. "
"Please check the configuration and apply the changes again.");
destroy_pending(pending);
}
static const struct zwlr_output_configuration_v1_listener config_listener = {
.succeeded = config_handle_succeeded,
.failed = config_handle_failed,
.cancelled = config_handle_cancelled,
};
void wd_apply_state(struct wd_state *state, struct wl_list *new_outputs,
struct wl_display *display) {
struct zwlr_output_configuration_v1 *config =
zwlr_output_manager_v1_create_configuration(state->output_manager, state->serial);
struct wd_pending_config *pending = calloc(1, sizeof(*pending));
pending->state = state;
pending->outputs = new_outputs;
zwlr_output_configuration_v1_add_listener(config, &config_listener, pending);
ssize_t i = -1;
struct wd_head_config *output;
wl_list_for_each(output, new_outputs, link) {
i++;
struct wd_head *head = output->head;
if (!output->enabled && output->enabled != head->enabled) {
zwlr_output_configuration_v1_disable_head(config, head->wlr_head);
continue;
}
struct zwlr_output_configuration_head_v1 *config_head = zwlr_output_configuration_v1_enable_head(config, head->wlr_head);
const struct wd_mode *selected_mode = NULL;
const struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->width == output->width && mode->height == output->height && mode->refresh == output->refresh) {
selected_mode = mode;
break;
}
}
if (selected_mode != NULL) {
if (output->enabled != head->enabled || selected_mode != head->mode) {
zwlr_output_configuration_head_v1_set_mode(config_head, selected_mode->wlr_mode);
}
} else if (output->enabled != head->enabled
|| output->width != head->custom_mode.width
|| output->height != head->custom_mode.height
|| output->refresh != head->custom_mode.refresh) {
zwlr_output_configuration_head_v1_set_custom_mode(config_head,
output->width, output->height, output->refresh);
}
if (output->enabled != head->enabled || output->x != head->x || output->y != head->y) {
zwlr_output_configuration_head_v1_set_position(config_head, output->x, output->y);
}
if (output->enabled != head->enabled || output->scale != head->scale) {
zwlr_output_configuration_head_v1_set_scale(config_head, wl_fixed_from_double(output->scale));
}
if (output->enabled != head->enabled || output->transform != head->transform) {
zwlr_output_configuration_head_v1_set_transform(config_head, output->transform);
}
}
zwlr_output_configuration_v1_apply(config);
wl_display_roundtrip(display);
}
static void wd_frame_destroy(struct wd_frame *frame) {
if (frame->pixels != NULL)
munmap(frame->pixels, frame->height * frame->stride);
if (frame->buffer != NULL)
wl_buffer_destroy(frame->buffer);
if (frame->pool != NULL)
wl_shm_pool_destroy(frame->pool);
if (frame->capture_fd != -1)
close(frame->capture_fd);
if (frame->wlr_frame != NULL)
zwlr_screencopy_frame_v1_destroy(frame->wlr_frame);
wl_list_remove(&frame->link);
free(frame);
}
static int create_shm_file(size_t size, const char *fmt, ...) {
char *shm_name = NULL;
int fd = -1;
va_list vl;
va_start(vl, fmt);
int result = vasprintf(&shm_name, fmt, vl);
va_end(vl);
if (result == -1) {
fprintf(stderr, "asprintf: %s\n", strerror(errno));
shm_name = NULL;
return -1;
}
fd = shm_open(shm_name, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
if (fd == -1) {
fprintf(stderr, "shm_open: %s\n", strerror(errno));
free(shm_name);
return -1;
}
shm_unlink(shm_name);
free(shm_name);
if (ftruncate(fd, size) == -1) {
fprintf(stderr, "ftruncate: %s\n", strerror(errno));
close(fd);
return -1;
}
return fd;
}
static void capture_buffer(void *data,
struct zwlr_screencopy_frame_v1 *copy_frame,
uint32_t format, uint32_t width, uint32_t height, uint32_t stride) {
struct wd_frame *frame = data;
if (format != WL_SHM_FORMAT_ARGB8888 && format != WL_SHM_FORMAT_XRGB8888 &&
format != WL_SHM_FORMAT_ABGR8888 && format != WL_SHM_FORMAT_XBGR8888) {
goto err;
}
size_t size = stride * height;
frame->capture_fd = create_shm_file(size, "/wd-%s", frame->output->name);
if (frame->capture_fd == -1) {
goto err;
}
frame->pool = wl_shm_create_pool(frame->output->state->shm,
frame->capture_fd, size);
frame->buffer = wl_shm_pool_create_buffer(frame->pool, 0,
width, height, stride, format);
zwlr_screencopy_frame_v1_copy(copy_frame, frame->buffer);
frame->stride = stride;
frame->width = width;
frame->height = height;
frame->swap_rgb = format == WL_SHM_FORMAT_ABGR8888
|| format == WL_SHM_FORMAT_XBGR8888;
return;
err:
wd_frame_destroy(frame);
}
static void capture_flags(void *data,
struct zwlr_screencopy_frame_v1 *wlr_frame,
uint32_t flags) {
struct wd_frame *frame = data;
frame->y_invert = !!(flags & ZWLR_SCREENCOPY_FRAME_V1_FLAGS_Y_INVERT);
}
static void capture_ready(void *data,
struct zwlr_screencopy_frame_v1 *wlr_frame,
uint32_t tv_sec_hi, uint32_t tv_sec_lo, uint32_t tv_nsec) {
struct wd_frame *frame = data;
frame->pixels = mmap(NULL, frame->stride * frame->height,
PROT_READ, MAP_SHARED, frame->capture_fd, 0);
if (frame->pixels == MAP_FAILED) {
frame->pixels = NULL;
fprintf(stderr, "mmap: %d: %s\n", frame->capture_fd, strerror(errno));
wd_frame_destroy(frame);
return;
} else {
uint64_t tv_sec = (uint64_t) tv_sec_hi << 32 | tv_sec_lo;
frame->tick = (tv_sec * 1000000) + (tv_nsec / 1000);
}
zwlr_screencopy_frame_v1_destroy(frame->wlr_frame);
frame->wlr_frame = NULL;
struct wd_frame *frame_iter, *frame_tmp;
wl_list_for_each_safe(frame_iter, frame_tmp, &frame->output->frames, link) {
if (frame != frame_iter) {
wd_frame_destroy(frame_iter);
}
}
}
static void capture_failed(void *data,
struct zwlr_screencopy_frame_v1 *wlr_frame) {
struct wd_frame *frame = data;
wd_frame_destroy(frame);
}
struct zwlr_screencopy_frame_v1_listener capture_listener = {
.buffer = capture_buffer,
.flags = capture_flags,
.ready = capture_ready,
.failed = capture_failed
};
static bool has_pending_captures(struct wd_state *state) {
struct wd_output *output;
wl_list_for_each(output, &state->outputs, link) {
struct wd_frame *frame;
wl_list_for_each(frame, &output->frames, link) {
if (frame->pixels == NULL) {
return true;
}
}
}
return false;
}
void wd_capture_frame(struct wd_state *state) {
if (state->copy_manager == NULL || has_pending_captures(state)
|| !state->capture) {
return;
}
struct wd_output *output;
wl_list_for_each(output, &state->outputs, link) {
struct wd_frame *frame = calloc(1, sizeof(*frame));
frame->output = output;
frame->capture_fd = -1;
frame->wlr_frame =
zwlr_screencopy_manager_v1_capture_output(state->copy_manager, 1,
output->wl_output);
zwlr_screencopy_frame_v1_add_listener(frame->wlr_frame, &capture_listener,
frame);
wl_list_insert(&output->frames, &frame->link);
}
}
static void wd_output_destroy(struct wd_output *output) {
struct wd_frame *frame, *frame_tmp;
wl_list_for_each_safe(frame, frame_tmp, &output->frames, link) {
wd_frame_destroy(frame);
}
if (output->state->layer_shell != NULL) {
wd_destroy_overlay(output);
}
zxdg_output_v1_destroy(output->xdg_output);
free(output->name);
free(output);
}
static void wd_mode_destroy(struct wd_mode* mode) {
zwlr_output_mode_v1_destroy(mode->wlr_mode);
free(mode);
}
static void wd_head_destroy(struct wd_head *head) {
if (head->state->clicked == head->render) {
head->state->clicked = NULL;
}
if (head->render != NULL) {
wl_list_remove(&head->render->link);
free(head->render);
head->render = NULL;
}
struct wd_mode *mode, *mode_tmp;
wl_list_for_each_safe(mode, mode_tmp, &head->modes, link) {
zwlr_output_mode_v1_destroy(mode->wlr_mode);
free(mode);
}
zwlr_output_head_v1_destroy(head->wlr_head);
free(head->name);
free(head->description);
free(head);
}
static void mode_handle_size(void *data, struct zwlr_output_mode_v1 *wlr_mode,
int32_t width, int32_t height) {
struct wd_mode *mode = data;
mode->width = width;
mode->height = height;
}
static void mode_handle_refresh(void *data,
struct zwlr_output_mode_v1 *wlr_mode, int32_t refresh) {
struct wd_mode *mode = data;
mode->refresh = refresh;
}
static void mode_handle_preferred(void *data,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_mode *mode = data;
mode->preferred = true;
}
static void mode_handle_finished(void *data,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_mode *mode = data;
wl_list_remove(&mode->link);
wd_mode_destroy(mode);
}
static const struct zwlr_output_mode_v1_listener mode_listener = {
.size = mode_handle_size,
.refresh = mode_handle_refresh,
.preferred = mode_handle_preferred,
.finished = mode_handle_finished,
};
static void head_handle_name(void *data,
struct zwlr_output_head_v1 *wlr_head, const char *name) {
struct wd_head *head = data;
head->name = strdup(name);
wd_ui_reset_head(head, WD_FIELD_NAME);
}
static void head_handle_description(void *data,
struct zwlr_output_head_v1 *wlr_head, const char *description) {
struct wd_head *head = data;
head->description = strdup(description);
wd_ui_reset_head(head, WD_FIELD_DESCRIPTION);
}
static void head_handle_physical_size(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t width, int32_t height) {
struct wd_head *head = data;
head->phys_width = width;
head->phys_height = height;
wd_ui_reset_head(head, WD_FIELD_PHYSICAL_SIZE);
}
static void head_handle_mode(void *data,
struct zwlr_output_head_v1 *wlr_head,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_head *head = data;
struct wd_mode *mode = calloc(1, sizeof(*mode));
mode->head = head;
mode->wlr_mode = wlr_mode;
wl_list_insert(head->modes.prev, &mode->link);
zwlr_output_mode_v1_add_listener(wlr_mode, &mode_listener, mode);
}
static void head_handle_enabled(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t enabled) {
struct wd_head *head = data;
head->enabled = !!enabled;
if (!enabled) {
head->output = NULL;
}
wd_ui_reset_head(head, WD_FIELD_ENABLED);
}
static void head_handle_current_mode(void *data,
struct zwlr_output_head_v1 *wlr_head,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_head *head = data;
struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->wlr_mode == wlr_mode) {
head->mode = mode;
wd_ui_reset_head(head, WD_FIELD_MODE);
return;
}
}
fprintf(stderr, "received unknown current_mode\n");
head->mode = NULL;
}
static void head_handle_position(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t x, int32_t y) {
struct wd_head *head = data;
head->x = x;
head->y = y;
wd_ui_reset_head(head, WD_FIELD_POSITION);
}
static void head_handle_transform(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t transform) {
struct wd_head *head = data;
head->transform = transform;
wd_ui_reset_head(head, WD_FIELD_TRANSFORM);
}
static void head_handle_scale(void *data,
struct zwlr_output_head_v1 *wlr_head, wl_fixed_t scale) {
struct wd_head *head = data;
head->scale = wl_fixed_to_double(scale);
wd_ui_reset_head(head, WD_FIELD_SCALE);
}
static void head_handle_finished(void *data,
struct zwlr_output_head_v1 *wlr_head) {
struct wd_head *head = data;
struct wd_state *state = head->state;
wl_list_remove(&head->link);
wd_head_destroy(head);
uint32_t counter = 0;
wl_list_for_each(head, &state->heads, link) {
if (head->id != counter) {
head->id = counter;
if (head->output != NULL) {
wd_redraw_overlay(head->output);
}
}
counter++;
}
}
static const struct zwlr_output_head_v1_listener head_listener = {
.name = head_handle_name,
.description = head_handle_description,
.physical_size = head_handle_physical_size,
.mode = head_handle_mode,
.enabled = head_handle_enabled,
.current_mode = head_handle_current_mode,
.position = head_handle_position,
.transform = head_handle_transform,
.scale = head_handle_scale,
.finished = head_handle_finished,
};
static void output_manager_handle_head(void *data,
struct zwlr_output_manager_v1 *manager,
struct zwlr_output_head_v1 *wlr_head) {
struct wd_state *state = data;
struct wd_head *head = calloc(1, sizeof(*head));
head->state = state;
head->wlr_head = wlr_head;
head->scale = 1.0;
head->id = wl_list_length(&state->heads);
wl_list_init(&head->modes);
wl_list_insert(&state->heads, &head->link);
zwlr_output_head_v1_add_listener(wlr_head, &head_listener, head);
}
static void output_manager_handle_done(void *data,
struct zwlr_output_manager_v1 *manager, uint32_t serial) {
struct wd_state *state = data;
state->serial = serial;
assert(wl_list_length(&state->heads) <= HEADS_MAX);
struct wd_head *head = data;
wl_list_for_each(head, &state->heads, link) {
if (!head->enabled && head->mode == NULL && !wl_list_empty(&head->modes)) {
struct wd_mode *mode = wl_container_of(head->modes.prev, mode, link);
head->custom_mode.width = mode->width;
head->custom_mode.height = mode->height;
head->custom_mode.refresh = mode->refresh;
}
}
wd_ui_reset_heads(state);
}
static const struct zwlr_output_manager_v1_listener output_manager_listener = {
.head = output_manager_handle_head,
.done = output_manager_handle_done,
.finished = noop,
};
static void registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct wd_state *state = data;
if (strcmp(interface, zwlr_output_manager_v1_interface.name) == 0) {
state->output_manager = wl_registry_bind(registry, name,
&zwlr_output_manager_v1_interface, version);
zwlr_output_manager_v1_add_listener(state->output_manager,
&output_manager_listener, state);
} else if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0) {
state->xdg_output_manager = wl_registry_bind(registry, name,
&zxdg_output_manager_v1_interface, version);
} else if(strcmp(interface, zwlr_screencopy_manager_v1_interface.name) == 0) {
state->copy_manager = wl_registry_bind(registry, name,
&zwlr_screencopy_manager_v1_interface, version);
} else if(strcmp(interface, zwlr_layer_shell_v1_interface.name) == 0) {
state->layer_shell = wl_registry_bind(registry, name,
&zwlr_layer_shell_v1_interface, version);
} else if(strcmp(interface, wl_shm_interface.name) == 0) {
state->shm = wl_registry_bind(registry, name, &wl_shm_interface, version);
}
}
static const struct wl_registry_listener registry_listener = {
.global = registry_handle_global,
.global_remove = noop,
};
void wd_add_output_management_listener(struct wd_state *state, struct
wl_display *display) {
struct wl_registry *registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, state);
wl_display_dispatch(display);
wl_display_roundtrip(display);
}
struct wd_head *wd_find_head(struct wd_state *state,
struct wd_output *output) {
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
if (output->name != NULL && strcmp(output->name, head->name) == 0) {
head->output = output;
return head;
}
}
return NULL;
}
static void output_logical_position(void *data, struct zxdg_output_v1 *zxdg_output_v1,
int32_t x, int32_t y) {
struct wd_output *output = data;
struct wd_head *head = wd_find_head(output->state, output);
if (head != NULL) {
head->x = x;
head->y = y;
wd_ui_reset_head(head, WD_FIELD_POSITION);
}
}
static void output_name(void *data, struct zxdg_output_v1 *zxdg_output_v1,
const char *name) {
struct wd_output *output = data;
if (output->name != NULL) {
free(output->name);
}
output->name = strdup(name);
struct wd_head *head = wd_find_head(output->state, output);
if (head != NULL) {
wd_ui_reset_head(head, WD_FIELD_NAME);
}
}
static const struct zxdg_output_v1_listener output_listener = {
.logical_position = output_logical_position,
.logical_size = noop,
.done = noop,
.name = output_name,
.description = noop
};
void wd_add_output(struct wd_state *state, struct wl_output *wl_output,
struct wl_display *display) {
struct wd_output *output = calloc(1, sizeof(*output));
output->state = state;
output->wl_output = wl_output;
output->xdg_output = zxdg_output_manager_v1_get_xdg_output(
state->xdg_output_manager, wl_output);
wl_list_init(&output->frames);
zxdg_output_v1_add_listener(output->xdg_output, &output_listener, output);
wl_list_insert(output->state->outputs.prev, &output->link);
if (state->layer_shell != NULL && state->show_overlay) {
wl_display_roundtrip(display);
wd_create_overlay(output);
}
}
void wd_remove_output(struct wd_state *state, struct wl_output *wl_output,
struct wl_display *display) {
struct wd_output *output, *output_tmp;
wl_list_for_each_safe(output, output_tmp, &state->outputs, link) {
if (output->wl_output == wl_output) {
wl_list_remove(&output->link);
wd_output_destroy(output);
break;
}
}
wd_capture_wait(state, display);
}
struct wd_output *wd_find_output(struct wd_state *state, struct wd_head
*head) {
if (!head->enabled) {
return NULL;
}
if (head->output != NULL) {
return head->output;
}
struct wd_output *output;
wl_list_for_each(output, &state->outputs, link) {
if (output->name != NULL && strcmp(output->name, head->name) == 0) {
head->output = output;
return output;
}
}
head->output = NULL;
return NULL;
}
struct wd_state *wd_state_create(void) {
struct wd_state *state = calloc(1, sizeof(*state));
state->zoom = 1.;
state->capture = true;
state->show_overlay = true;
wl_list_init(&state->heads);
wl_list_init(&state->outputs);
wl_list_init(&state->render.heads);
return state;
}
void wd_capture_wait(struct wd_state *state, struct wl_display *display) {
wl_display_flush(display);
while (has_pending_captures(state)) {
if (wl_display_dispatch(display) == -1) {
break;
}
}
}
void wd_state_destroy(struct wd_state *state) {
struct wd_head *head, *head_tmp;
wl_list_for_each_safe(head, head_tmp, &state->heads, link) {
wd_head_destroy(head);
}
struct wd_output *output, *output_tmp;
wl_list_for_each_safe(output, output_tmp, &state->outputs, link) {
wd_output_destroy(output);
}
if (state->layer_shell != NULL) {
zwlr_layer_shell_v1_destroy(state->layer_shell);
}
if (state->copy_manager != NULL) {
zwlr_screencopy_manager_v1_destroy(state->copy_manager);
}
zwlr_output_manager_v1_destroy(state->output_manager);
zxdg_output_manager_v1_destroy(state->xdg_output_manager);
wl_shm_destroy(state->shm);
free(state);
}

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#define _GNU_SOURCE
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <gtk/gtk.h>
#include <gdk/gdkwayland.h>
#include "wdisplays.h"
#include "wlr-layer-shell-unstable-v1-client-protocol.h"
#define SCREEN_MARGIN_PERCENT 0.02
static void layer_surface_configure(void *data,
struct zwlr_layer_surface_v1 *surface,
uint32_t serial, uint32_t width, uint32_t height) {
struct wd_output *output = data;
gtk_widget_set_size_request(output->overlay_window, width, height);
zwlr_layer_surface_v1_ack_configure(surface, serial);
}
static void layer_surface_closed(void *data,
struct zwlr_layer_surface_v1 *surface) {
}
static const struct zwlr_layer_surface_v1_listener layer_surface_listener = {
.configure = layer_surface_configure,
.closed = layer_surface_closed,
};
static inline int min(int a, int b) {
return a < b ? a : b;
}
static PangoLayout *create_text_layout(struct wd_head *head,
PangoContext *pango, GtkStyleContext *style) {
GtkStyleContext *desc_style = gtk_style_context_new();
gtk_style_context_set_screen(desc_style,
gtk_style_context_get_screen(style));
GtkWidgetPath *desc_path = gtk_widget_path_copy(
gtk_style_context_get_path(style));
gtk_widget_path_append_type(desc_path, G_TYPE_NONE);
gtk_style_context_set_path(desc_style, desc_path);
gtk_style_context_add_class(desc_style, "description");
double desc_font_size = 16.;
gtk_style_context_get(desc_style, GTK_STATE_FLAG_NORMAL,
"font-size", &desc_font_size, NULL);
g_autofree gchar *str = g_strdup_printf("%s\n<span size=\"%d\">%s</span>",
head->name, (int) (desc_font_size * PANGO_SCALE), head->description);
PangoLayout *layout = pango_layout_new(pango);
pango_layout_set_markup(layout, str, -1);
return layout;
}
static void resize(struct wd_output *output) {
struct wd_head *head = wd_find_head(output->state, output);
uint32_t screen_width = head->custom_mode.width;
uint32_t screen_height = head->custom_mode.height;
if (head->mode != NULL) {
screen_width = head->mode->width;
screen_height = head->mode->height;
}
uint32_t margin = min(screen_width, screen_height) * SCREEN_MARGIN_PERCENT;
GdkWindow *window = gtk_widget_get_window(output->overlay_window);
PangoContext *pango = gtk_widget_get_pango_context(output->overlay_window);
GtkStyleContext *style_ctx = gtk_widget_get_style_context(
output->overlay_window);
PangoLayout *layout = create_text_layout(head, pango, style_ctx);
int width;
int height;
pango_layout_get_pixel_size(layout, &width, &height);
g_object_unref(layout);
GtkBorder padding;
gtk_style_context_get_padding(style_ctx, GTK_STATE_FLAG_NORMAL, &padding);
width = min(width, screen_width - margin * 2)
+ padding.left + padding.right;
height = min(height, screen_height - margin * 2)
+ padding.top + padding.bottom;
zwlr_layer_surface_v1_set_margin(output->overlay_layer_surface,
margin, margin, margin, margin);
zwlr_layer_surface_v1_set_size(output->overlay_layer_surface,
width, height);
struct wl_surface *surface = gdk_wayland_window_get_wl_surface(window);
wl_surface_commit(surface);
GdkDisplay *display = gdk_window_get_display(window);
wl_display_roundtrip(gdk_wayland_display_get_wl_display(display));
}
void wd_redraw_overlay(struct wd_output *output) {
if (output->overlay_window != NULL) {
resize(output);
gtk_widget_queue_draw(output->overlay_window);
}
}
void window_realize(GtkWidget *widget, gpointer data) {
GdkWindow *window = gtk_widget_get_window(widget);
gdk_wayland_window_set_use_custom_surface(window);
}
void window_map(GtkWidget *widget, gpointer data) {
struct wd_output *output = data;
GdkWindow *window = gtk_widget_get_window(widget);
cairo_region_t *region = cairo_region_create();
gdk_window_input_shape_combine_region(window, region, 0, 0);
cairo_region_destroy(region);
struct wl_surface *surface = gdk_wayland_window_get_wl_surface(window);
output->overlay_layer_surface = zwlr_layer_shell_v1_get_layer_surface(
output->state->layer_shell, surface, output->wl_output,
ZWLR_LAYER_SHELL_V1_LAYER_TOP, "output-overlay");
zwlr_layer_surface_v1_add_listener(output->overlay_layer_surface,
&layer_surface_listener, output);
zwlr_layer_surface_v1_set_anchor(output->overlay_layer_surface,
ZWLR_LAYER_SURFACE_V1_ANCHOR_TOP |
ZWLR_LAYER_SURFACE_V1_ANCHOR_LEFT);
resize(output);
}
void window_unmap(GtkWidget *widget, gpointer data) {
struct wd_output *output = data;
zwlr_layer_surface_v1_destroy(output->overlay_layer_surface);
}
gboolean window_draw(GtkWidget *widget, cairo_t *cr, gpointer data) {
struct wd_output *output = data;
struct wd_head *head = wd_find_head(output->state, output);
GtkStyleContext *style_ctx = gtk_widget_get_style_context(widget);
GdkRGBA fg;
gtk_style_context_get_color(style_ctx, GTK_STATE_FLAG_NORMAL, &fg);
int width = gtk_widget_get_allocated_width(widget);
int height = gtk_widget_get_allocated_height(widget);
gtk_render_background(style_ctx, cr, 0, 0, width, height);
GtkBorder padding;
gtk_style_context_get_padding(style_ctx, GTK_STATE_FLAG_NORMAL, &padding);
PangoContext *pango = gtk_widget_get_pango_context(widget);
PangoLayout *layout = create_text_layout(head, pango, style_ctx);
gdk_cairo_set_source_rgba(cr, &fg);
cairo_move_to(cr, padding.left, padding.top);
pango_cairo_show_layout(cr, layout);
g_object_unref(layout);
return TRUE;
}
void wd_create_overlay(struct wd_output *output) {
output->overlay_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_decorated(GTK_WINDOW(output->overlay_window), FALSE);
gtk_window_set_resizable(GTK_WINDOW(output->overlay_window), FALSE);
gtk_widget_add_events(output->overlay_window, GDK_STRUCTURE_MASK);
g_signal_connect(output->overlay_window, "realize",
G_CALLBACK(window_realize), output);
g_signal_connect(output->overlay_window, "map",
G_CALLBACK(window_map), output);
g_signal_connect(output->overlay_window, "unmap",
G_CALLBACK(window_unmap), output);
g_signal_connect(output->overlay_window, "draw",
G_CALLBACK(window_draw), output);
GtkStyleContext *style_ctx = gtk_widget_get_style_context(
output->overlay_window);
gtk_style_context_add_class(style_ctx, "output-overlay");
gtk_widget_show(output->overlay_window);
}
void wd_destroy_overlay(struct wd_output *output) {
if (output->overlay_window != NULL) {
gtk_widget_destroy(output->overlay_window);
output->overlay_window = NULL;
}
}

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/* SPDX-FileCopyrightText: 2020 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
#include "wdisplays.h"
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <epoxy/gl.h>
#include <wayland-util.h>
#define BT_UV_VERT_SIZE (2 + 2)
#define BT_UV_QUAD_SIZE (6 * BT_UV_VERT_SIZE)
#define BT_UV_MAX (BT_COLOR_QUAD_SIZE * HEADS_MAX)
#define BT_COLOR_VERT_SIZE (2 + 4)
#define BT_COLOR_QUAD_SIZE (6 * BT_COLOR_VERT_SIZE)
#define BT_COLOR_MAX (BT_COLOR_QUAD_SIZE * HEADS_MAX)
#define BT_LINE_VERT_SIZE (2 + 4)
#define BT_LINE_QUAD_SIZE (8 * BT_LINE_VERT_SIZE)
#define BT_LINE_EXT_SIZE (24 * BT_LINE_VERT_SIZE)
#define BT_LINE_MAX (BT_LINE_EXT_SIZE * (HEADS_MAX + 1))
enum gl_buffers {
TEXTURE_BUFFER,
COLOR_BUFFER,
LINE_BUFFER,
NUM_BUFFERS
};
struct wd_gl_data {
GLuint color_program;
GLuint color_vertex_shader;
GLuint color_fragment_shader;
GLuint color_position_attribute;
GLuint color_color_attribute;
GLuint color_screen_size_uniform;
GLuint texture_program;
GLuint texture_vertex_shader;
GLuint texture_fragment_shader;
GLuint texture_position_attribute;
GLuint texture_uv_attribute;
GLuint texture_screen_size_uniform;
GLuint texture_texture_uniform;
GLuint texture_color_transform_uniform;
GLuint buffers[NUM_BUFFERS];
unsigned texture_count;
GLuint textures[HEADS_MAX];
float verts[BT_LINE_MAX];
};
static const char *color_vertex_shader_src = "\
precision mediump float;\n\
attribute vec2 position;\n\
attribute vec4 color;\n\
varying vec4 color_out;\n\
uniform vec2 screen_size;\n\
void main(void) {\n\
vec2 screen_pos = (position / screen_size * 2. - 1.) * vec2(1., -1.);\n\
gl_Position = vec4(screen_pos, 0., 1.);\n\
color_out = color;\n\
}";
static const char *color_fragment_shader_src = "\
precision mediump float;\n\
varying vec4 color_out;\n\
void main(void) {\n\
gl_FragColor = color_out;\n\
}";
static const char *texture_vertex_shader_src = "\
precision mediump float;\n\
attribute vec2 position;\n\
attribute vec2 uv;\n\
varying vec2 uv_out;\n\
uniform vec2 screen_size;\n\
void main(void) {\n\
vec2 screen_pos = (position / screen_size * 2. - 1.) * vec2(1., -1.);\n\
gl_Position = vec4(screen_pos, 0., 1.);\n\
uv_out = uv;\n\
}";
static const char *texture_fragment_shader_src = "\
precision mediump float;\n\
varying vec2 uv_out;\n\
uniform sampler2D texture;\n\
uniform mat4 color_transform;\n\
void main(void) {\n\
gl_FragColor = texture2D(texture, uv_out) * color_transform;\n\
}";
static GLuint gl_make_shader(GLenum type, const char *src) {
GLuint shader = glCreateShader(type);
glShaderSource(shader, 1, &src, NULL);
glCompileShader(shader);
GLint status;
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if (status == GL_FALSE) {
GLsizei length;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &length);
GLchar *log = "Failed";
if (length > 0) {
log = malloc(length);
glGetShaderInfoLog(shader, length, NULL, log);
}
fprintf(stderr, "glCompileShader: %s\n", log);
if (length > 0) {
free(log);
}
}
return shader;
}
static void gl_link_and_validate(GLint program) {
GLint status;
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &status);
if (status == GL_FALSE) {
GLsizei length;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &length);
GLchar *log = malloc(length);
glGetProgramInfoLog(program, length, NULL, log);
fprintf(stderr, "glLinkProgram: %s\n", log);
free(log);
return;
}
glValidateProgram(program);
glGetProgramiv(program, GL_VALIDATE_STATUS, &status);
if (status == GL_FALSE) {
GLsizei length;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &length);
GLchar *log = malloc(length);
glGetProgramInfoLog(program, length, NULL, log);
fprintf(stderr, "glValidateProgram: %s\n", log);
free(log);
}
}
struct wd_gl_data *wd_gl_setup(void) {
struct wd_gl_data *res = calloc(1, sizeof(struct wd_gl_data));
res->color_program = glCreateProgram();
res->color_vertex_shader = gl_make_shader(GL_VERTEX_SHADER,
color_vertex_shader_src);
glAttachShader(res->color_program, res->color_vertex_shader);
res->color_fragment_shader = gl_make_shader(GL_FRAGMENT_SHADER,
color_fragment_shader_src);
glAttachShader(res->color_program, res->color_fragment_shader);
gl_link_and_validate(res->color_program);
res->color_position_attribute = glGetAttribLocation(res->color_program,
"position");
res->color_color_attribute = glGetAttribLocation(res->color_program,
"color");
res->color_screen_size_uniform = glGetUniformLocation(res->color_program,
"screen_size");
res->texture_program = glCreateProgram();
res->texture_vertex_shader = gl_make_shader(GL_VERTEX_SHADER,
texture_vertex_shader_src);
glAttachShader(res->texture_program, res->texture_vertex_shader);
res->texture_fragment_shader = gl_make_shader(GL_FRAGMENT_SHADER,
texture_fragment_shader_src);
glAttachShader(res->texture_program, res->texture_fragment_shader);
gl_link_and_validate(res->texture_program);
res->texture_position_attribute = glGetAttribLocation(res->texture_program,
"position");
res->texture_uv_attribute = glGetAttribLocation(res->texture_program,
"uv");
res->texture_screen_size_uniform = glGetUniformLocation(res->texture_program,
"screen_size");
res->texture_texture_uniform = glGetUniformLocation(res->texture_program,
"texture");
res->texture_color_transform_uniform = glGetUniformLocation(
res->texture_program, "color_transform");
glGenBuffers(NUM_BUFFERS, res->buffers);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[TEXTURE_BUFFER]);
glBufferData(GL_ARRAY_BUFFER, BT_UV_MAX * sizeof(float),
NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[COLOR_BUFFER]);
glBufferData(GL_ARRAY_BUFFER, BT_COLOR_MAX * sizeof(float),
NULL, GL_DYNAMIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[LINE_BUFFER]);
glBufferData(GL_ARRAY_BUFFER, BT_LINE_MAX * sizeof(float),
NULL, GL_DYNAMIC_DRAW);
return res;
}
static const GLfloat TRANSFORM_RGB[16] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1};
static const GLfloat TRANSFORM_BGR[16] = {
0, 0, 1, 0,
0, 1, 0, 0,
1, 0, 0, 0,
0, 0, 0, 1};
#define PUSH_POINT_COLOR(_start, _a, _b, _color, _alpha) \
*((_start)++) = (_a);\
*((_start)++) = (_b);\
*((_start)++) = ((_color)[0]);\
*((_start)++) = ((_color)[1]);\
*((_start)++) = ((_color)[2]);\
*((_start)++) = (_alpha);
#define PUSH_POINT_UV(_start, _a, _b, _c, _d) \
*((_start)++) = (_a);\
*((_start)++) = (_b);\
*((_start)++) = (_c);\
*((_start)++) = (_d);
static inline float lerp(float x, float y, float a) {
return x * (1.f - a) + y * a;
}
static inline void lerp_color(float out[3], float x[3], float y[3], float a) {
out[0] = lerp(x[0], y[0], a);
out[1] = lerp(x[1], y[1], a);
out[2] = lerp(x[2], y[2], a);
out[3] = lerp(x[3], y[3], a);
}
static inline float ease(float d) {
d *= 2.f;
if (d <= 1.f) {
d = d * d;
} else {
d -= 1.f;
d = d * (2.f - d) + 1.f;
}
d /= 2.f;
return d;
}
void wd_gl_render(struct wd_gl_data *res, struct wd_render_data *info,
uint64_t tick) {
unsigned int tri_verts = 0;
unsigned int head_count = wl_list_length(&info->heads);
if (head_count >= HEADS_MAX)
head_count = HEADS_MAX;
if (head_count > res->texture_count) {
glGenTextures(head_count - res->texture_count,
res->textures + res->texture_count);
for (int i = res->texture_count; i < head_count; i++) {
glBindTexture(GL_TEXTURE_2D, res->textures[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
glBindTexture(GL_TEXTURE_2D, 0);
res->texture_count = head_count;
}
struct wd_render_head_data *head;
int i = 0;
wl_list_for_each_reverse(head, &info->heads, link) {
float *tri_ptr = res->verts + i * BT_UV_QUAD_SIZE;
float x1 = head->active.x_invert ? head->x2 : head->x1;
float y1 = head->y_invert ? head->y2 : head->y1;
float x2 = head->active.x_invert ? head->x1 : head->x2;
float y2 = head->y_invert ? head->y1 : head->y2;
float sa = 0.f;
float sb = 1.f;
float sc = sb;
float sd = sa;
float ta = 0.f;
float tb = ta;
float tc = 1.f;
float td = tc;
for (int i = 0; i < head->active.rotation; i++) {
float tmp = sd;
sd = sc;
sc = sb;
sb = sa;
sa = tmp;
tmp = td;
td = tc;
tc = tb;
tb = ta;
ta = tmp;
}
PUSH_POINT_UV(tri_ptr, x1, y1, sa, ta)
PUSH_POINT_UV(tri_ptr, x2, y1, sb, tb)
PUSH_POINT_UV(tri_ptr, x1, y2, sd, td)
PUSH_POINT_UV(tri_ptr, x1, y2, sd, td)
PUSH_POINT_UV(tri_ptr, x2, y1, sb, tb)
PUSH_POINT_UV(tri_ptr, x2, y2, sc, tc)
tri_verts += 6;
i++;
if (i >= HEADS_MAX)
break;
}
glClearColor(info->bg_color[0], info->bg_color[1], info->bg_color[2], 1.f);
glClear(GL_COLOR_BUFFER_BIT);
float screen_size[2] = { info->viewport_width, info->viewport_height };
if (tri_verts > 0) {
glUseProgram(res->texture_program);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[TEXTURE_BUFFER]);
glBufferSubData(GL_ARRAY_BUFFER, 0,
tri_verts * BT_UV_VERT_SIZE * sizeof(float), res->verts);
glEnableVertexAttribArray(res->texture_position_attribute);
glEnableVertexAttribArray(res->texture_uv_attribute);
glVertexAttribPointer(res->texture_position_attribute,
2, GL_FLOAT, GL_FALSE,
BT_UV_VERT_SIZE * sizeof(float), (void *) (0 * sizeof(float)));
glVertexAttribPointer(res->texture_uv_attribute, 2, GL_FLOAT, GL_FALSE,
BT_UV_VERT_SIZE * sizeof(float), (void *) (2 * sizeof(float)));
glUniform2fv(res->texture_screen_size_uniform, 1, screen_size);
glUniform1i(res->texture_texture_uniform, 0);
glActiveTexture(GL_TEXTURE0);
i = 0;
wl_list_for_each_reverse(head, &info->heads, link) {
glBindTexture(GL_TEXTURE_2D, res->textures[i]);
if (head->updated_at == tick) {
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, head->tex_stride / 4);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
head->tex_width, head->tex_height,
0, GL_RGBA, GL_UNSIGNED_BYTE, head->pixels);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
glGenerateMipmap(GL_TEXTURE_2D);
}
glUniformMatrix4fv(res->texture_color_transform_uniform, 1, GL_FALSE,
head->swap_rgb ? TRANSFORM_RGB : TRANSFORM_BGR);
glDrawArrays(GL_TRIANGLES, i * 6, 6);
i++;
if (i >= HEADS_MAX)
break;
}
}
tri_verts = 0;
int j = 0;
i = 0;
bool any_clicked = false;
uint64_t click_begin = 0;
wl_list_for_each_reverse(head, &info->heads, link) {
any_clicked = head->clicked || any_clicked;
if (head->click_begin > click_begin)
click_begin = head->click_begin;
if (head->hovered || tick < head->hover_begin + HOVER_USECS) {
float *tri_ptr = res->verts + j++ * BT_COLOR_QUAD_SIZE;
float x1 = head->x1;
float y1 = head->y1;
float x2 = head->x2;
float y2 = head->y2;
float *color = info->selection_color;
float d = fminf(
(tick - head->hover_begin) / (double) HOVER_USECS, 1.f);
if (!head->hovered)
d = 1.f - d;
float alpha = color[3] * ease(d) * .5f;
PUSH_POINT_COLOR(tri_ptr, x1, y1, color, alpha)
PUSH_POINT_COLOR(tri_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(tri_ptr, x1, y2, color, alpha)
PUSH_POINT_COLOR(tri_ptr, x1, y2, color, alpha)
PUSH_POINT_COLOR(tri_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(tri_ptr, x2, y2, color, alpha)
tri_verts += 6;
}
i++;
if (i >= HEADS_MAX)
break;
}
if (tri_verts > 0) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glUseProgram(res->color_program);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[COLOR_BUFFER]);
glBufferSubData(GL_ARRAY_BUFFER, 0,
tri_verts * BT_COLOR_VERT_SIZE * sizeof(float), res->verts);
glEnableVertexAttribArray(res->color_position_attribute);
glEnableVertexAttribArray(res->color_color_attribute);
glVertexAttribPointer(res->color_position_attribute, 2, GL_FLOAT, GL_FALSE,
BT_COLOR_VERT_SIZE * sizeof(float), (void *) (0 * sizeof(float)));
glVertexAttribPointer(res->color_color_attribute, 4, GL_FLOAT, GL_FALSE,
BT_COLOR_VERT_SIZE * sizeof(float), (void *) (2 * sizeof(float)));
glUniform2fv(res->color_screen_size_uniform, 1, screen_size);
glDrawArrays(GL_TRIANGLES, 0, tri_verts);
glDisable(GL_BLEND);
}
unsigned int line_verts = 0;
i = 0;
float *line_ptr = res->verts;
if (any_clicked || (click_begin && tick < click_begin + HOVER_USECS)) {
const float ox = -info->scroll_x - info->x_origin;
const float oy = -info->scroll_y - info->y_origin;
const float sx = screen_size[0];
const float sy = screen_size[1];
float color[4];
lerp_color(color, info->selection_color, info->fg_color, .5f);
float d = fminf(
(tick - click_begin) / (double) HOVER_USECS, 1.f);
if (!any_clicked)
d = 1.f - d;
float alpha = color[3] * ease(d) * .5f;
PUSH_POINT_COLOR(line_ptr, ox, oy, color, alpha)
PUSH_POINT_COLOR(line_ptr, sx, oy, color, alpha)
PUSH_POINT_COLOR(line_ptr, ox, oy, color, alpha)
PUSH_POINT_COLOR(line_ptr, ox, sy, color, alpha)
line_verts += 4;
}
wl_list_for_each(head, &info->heads, link) {
float x1 = head->x1;
float y1 = head->y1;
float x2 = head->x2;
float y2 = head->y2;
float *color = info->fg_color;
float alpha = color[3] * (head->clicked ? .5f : .25f);
PUSH_POINT_COLOR(line_ptr, x1, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y1, color, alpha)
line_verts += 8;
if (any_clicked || (click_begin && tick < click_begin + HOVER_USECS)) {
float d = fminf(
(tick - click_begin) / (double) HOVER_USECS, 1.f);
if (!any_clicked)
d = 1.f - d;
alpha = color[3] * ease(d) * (head->clicked ? .15f : .075f);
const float sx = screen_size[0];
const float sy = screen_size[1];
PUSH_POINT_COLOR(line_ptr, 0, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, 0, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, sx, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, 0, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y1, color, alpha)
PUSH_POINT_COLOR(line_ptr, sx, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, sy, color, alpha)
PUSH_POINT_COLOR(line_ptr, x2, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, 0, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y2, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, sy, color, alpha)
PUSH_POINT_COLOR(line_ptr, x1, y2, color, alpha)
line_verts += 16;
}
i++;
if (i >= HEADS_MAX)
break;
}
if (line_verts > 0) {
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glUseProgram(res->color_program);
glBindBuffer(GL_ARRAY_BUFFER, res->buffers[LINE_BUFFER]);
glBufferSubData(GL_ARRAY_BUFFER, 0,
line_verts * BT_LINE_VERT_SIZE * sizeof(float), res->verts);
glEnableVertexAttribArray(res->color_position_attribute);
glEnableVertexAttribArray(res->color_color_attribute);
glVertexAttribPointer(res->color_position_attribute, 2, GL_FLOAT, GL_FALSE,
BT_LINE_VERT_SIZE * sizeof(float), (void *) (0 * sizeof(float)));
glVertexAttribPointer(res->color_color_attribute, 4, GL_FLOAT, GL_FALSE,
BT_LINE_VERT_SIZE * sizeof(float), (void *) (2 * sizeof(float)));
glUniform2fv(res->color_screen_size_uniform, 1, screen_size);
glDrawArrays(GL_LINES, 0, line_verts);
glDisable(GL_BLEND);
}
}
void wd_gl_cleanup(struct wd_gl_data *res) {
glDeleteBuffers(NUM_BUFFERS, res->buffers);
glDeleteShader(res->texture_fragment_shader);
glDeleteShader(res->texture_vertex_shader);
glDeleteProgram(res->texture_program);
glDeleteShader(res->color_fragment_shader);
glDeleteShader(res->color_vertex_shader);
glDeleteProgram(res->color_program);
free(res);
}

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/* SPDX-FileCopyrightText: 2019 Jason Francis <jason@cycles.network>
* SPDX-License-Identifier: GPL-3.0-or-later */
/* SPDX-FileCopyrightText: 2017-2019 Simon Ser
* SPDX-License-Identifier: MIT */
/*
* Parts of this file are taken from emersion/kanshi:
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/include/kanshi.h
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/include/config.h
*/
#ifndef WDISPLAY_WDISPLAY_H
#define WDISPLAY_WDISPLAY_H
#include "config.h"
#define HEADS_MAX 64
#define HOVER_USECS (100 * 1000)
#include <stdbool.h>
#include <wayland-client.h>
#include "headform.h"
struct zxdg_output_v1;
struct zxdg_output_manager_v1;
struct zwlr_output_mode_v1;
struct zwlr_output_head_v1;
struct zwlr_output_manager_v1;
struct zwlr_screencopy_manager_v1;
struct zwlr_screencopy_frame_v1;
struct zwlr_layer_shell_v1;
struct zwlr_layer_surface_v1;
struct _GtkWidget;
typedef struct _GtkWidget GtkWidget;
struct _GtkBuilder;
typedef struct _GtkBuilder GtkBuilder;
struct _GdkCursor;
typedef struct _GdkCursor GdkCursor;
struct _cairo_surface;
typedef struct _cairo_surface cairo_surface_t;
struct wd_output {
struct wd_state *state;
struct zxdg_output_v1 *xdg_output;
struct wl_output *wl_output;
struct wl_list link;
char *name;
struct wl_list frames;
GtkWidget *overlay_window;
struct zwlr_layer_surface_v1 *overlay_layer_surface;
};
struct wd_frame {
struct wd_output *output;
struct zwlr_screencopy_frame_v1 *wlr_frame;
struct wl_list link;
int capture_fd;
unsigned stride;
unsigned width;
unsigned height;
struct wl_shm_pool *pool;
struct wl_buffer *buffer;
uint8_t *pixels;
uint64_t tick;
bool y_invert;
bool swap_rgb;
};
struct wd_head_config {
struct wl_list link;
struct wd_head *head;
bool enabled;
int32_t width;
int32_t height;
int32_t refresh; // mHz
int32_t x;
int32_t y;
double scale;
enum wl_output_transform transform;
};
struct wd_mode {
struct wd_head *head;
struct zwlr_output_mode_v1 *wlr_mode;
struct wl_list link;
int32_t width, height;
int32_t refresh; // mHz
bool preferred;
};
struct wd_head {
struct wd_state *state;
struct zwlr_output_head_v1 *wlr_head;
struct wl_list link;
struct wd_output *output;
struct wd_render_head_data *render;
cairo_surface_t *surface;
uint32_t id;
char *name, *description;
int32_t phys_width, phys_height; // mm
struct wl_list modes;
bool enabled;
struct wd_mode *mode;
struct {
int32_t width, height;
int32_t refresh;
} custom_mode;
int32_t x, y;
enum wl_output_transform transform;
double scale;
};
struct wd_gl_data;
struct wd_render_head_flags {
uint8_t rotation;
bool x_invert;
};
struct wd_render_head_data {
struct wl_list link;
uint64_t updated_at;
uint64_t hover_begin;
uint64_t click_begin;
float x1;
float y1;
float x2;
float y2;
struct wd_render_head_flags queued;
struct wd_render_head_flags active;
uint8_t *pixels;
unsigned tex_stride;
unsigned tex_width;
unsigned tex_height;
bool preview;
bool y_invert;
bool swap_rgb;
bool hovered;
bool clicked;
};
struct wd_render_data {
float fg_color[4];
float bg_color[4];
float border_color[4];
float selection_color[4];
unsigned int viewport_width;
unsigned int viewport_height;
unsigned int width;
unsigned int height;
int scroll_x;
int scroll_y;
int x_origin;
int y_origin;
uint64_t updated_at;
struct wl_list heads;
};
struct wd_point {
double x;
double y;
};
struct wd_state {
struct zxdg_output_manager_v1 *xdg_output_manager;
struct zwlr_output_manager_v1 *output_manager;
struct zwlr_screencopy_manager_v1 *copy_manager;
struct zwlr_layer_shell_v1 *layer_shell;
struct wl_shm *shm;
struct wl_list heads;
struct wl_list outputs;
uint32_t serial;
bool apply_pending;
bool autoapply;
bool capture;
bool show_overlay;
double zoom;
unsigned int apply_idle;
unsigned int reset_idle;
struct wd_render_head_data *clicked;
struct wd_point drag_start;
struct wd_point head_drag_start; /* 0-1 range in head rect */
bool panning;
struct wd_point pan_start;
GtkWidget *main_box;
GtkWidget *header_stack;
GtkWidget *stack_switcher;
GtkWidget *stack;
GtkWidget *scroller;
GtkWidget *canvas;
GtkWidget *spinner;
GtkWidget *zoom_out;
GtkWidget *zoom_reset;
GtkWidget *zoom_in;
GtkWidget *overlay;
GtkWidget *info_bar;
GtkWidget *info_label;
GtkWidget *menu_button;
GdkCursor *grab_cursor;
GdkCursor *grabbing_cursor;
GdkCursor *move_cursor;
unsigned int canvas_tick;
struct wd_gl_data *gl_data;
struct wd_render_data render;
};
/*
* Creates the application state structure.
*/
struct wd_state *wd_state_create(void);
/*
* Frees the application state structure.
*/
void wd_state_destroy(struct wd_state *state);
/*
* Displays an error message and then exits the program.
*/
void wd_fatal_error(int status, const char *message);
/*
* Add an output to the list of screen captured outputs.
*/
void wd_add_output(struct wd_state *state, struct wl_output *wl_output, struct wl_display *display);
/*
* Remove an output from the list of screen captured outputs.
*/
void wd_remove_output(struct wd_state *state, struct wl_output *wl_output, struct wl_display *display);
/*
* Finds the output associated with a given head. Can return NULL if the head's
* output is disabled.
*/
struct wd_output *wd_find_output(struct wd_state *state, struct wd_head *head);
/*
* Finds the head associated with a given output.
*/
struct wd_head *wd_find_head(struct wd_state *state, struct wd_output *output);
/*
* Starts listening for output management events from the compositor.
*/
void wd_add_output_management_listener(struct wd_state *state, struct wl_display *display);
/*
* Sends updated display configuration back to the compositor.
*/
void wd_apply_state(struct wd_state *state, struct wl_list *new_outputs, struct wl_display *display);
/*
* Queues capture of the next frame of all screens.
*/
void wd_capture_frame(struct wd_state *state);
/*
* Blocks until all captures are finished.
*/
void wd_capture_wait(struct wd_state *state, struct wl_display *display);
/*
* Updates the UI stack of all heads. Does not update individual head forms.
* Useful for when a display is plugged/unplugged and we want to add/remove
* a page, but we don't want to wipe out user's changes on the other pages.
*/
void wd_ui_reset_heads(struct wd_state *state);
/*
* Updates the UI form for a single head. Useful for when the compositor
* notifies us of updated configuration caused by another program.
*/
void wd_ui_reset_head(const struct wd_head *head, enum wd_head_fields fields);
/*
* Updates the stack and all forms to the last known server state.
*/
void wd_ui_reset_all(struct wd_state *state);
/*
* Reactivates the GUI after the display configuration updates.
*/
void wd_ui_apply_done(struct wd_state *state, struct wl_list *outputs);
/*
* Reactivates the GUI after the display configuration updates.
*/
void wd_ui_show_error(struct wd_state *state, const char *message);
/*
* Compiles the GL shaders.
*/
struct wd_gl_data *wd_gl_setup(void);
/*
* Renders the GL scene.
*/
void wd_gl_render(struct wd_gl_data *res, struct wd_render_data *info, uint64_t tick);
/*
* Destroys the GL shaders.
*/
void wd_gl_cleanup(struct wd_gl_data *res);
/*
* Create an overlay on the screen that contains a textual description of the
* output. This is to help the user identify the outputs visually.
*/
void wd_create_overlay(struct wd_output *output);
/*
* Forces redrawing of the screen overlay on the given output.
*/
void wd_redraw_overlay(struct wd_output *output);
/*
* Destroys the screen overlay on the given output.
*/
void wd_destroy_overlay(struct wd_output *output);
#endif

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