mirror of
https://github.com/italicsjenga/winit-sonoma-fix.git
synced 2024-12-23 22:01:31 +11:00
de782504ab
This adds support for the fractional scaling on Wayland via the wp-fractional-scale protocol. Co-authored-by: Julian Orth <ju.orth@gmail.com>
103 lines
4.5 KiB
XML
103 lines
4.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<protocol name="fractional_scale_v1">
|
|
<copyright>
|
|
Copyright © 2022 Kenny Levinsen
|
|
|
|
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="Protocol for requesting fractional surface scales">
|
|
This protocol allows a compositor to suggest for surfaces to render at
|
|
fractional scales.
|
|
|
|
A client can submit scaled content by utilizing wp_viewport. This is done by
|
|
creating a wp_viewport object for the surface and setting the destination
|
|
rectangle to the surface size before the scale factor is applied.
|
|
|
|
The buffer size is calculated by multiplying the surface size by the
|
|
intended scale.
|
|
|
|
The wl_surface buffer scale should remain set to 1.
|
|
|
|
If a surface has a surface-local size of 100 px by 50 px and wishes to
|
|
submit buffers with a scale of 1.5, then a buffer of 150px by 75 px should
|
|
be used and the wp_viewport destination rectangle should be 100 px by 50 px.
|
|
|
|
For toplevel surfaces, the size is rounded halfway away from zero. The
|
|
rounding algorithm for subsurface position and size is not defined.
|
|
</description>
|
|
|
|
<interface name="wp_fractional_scale_manager_v1" version="1">
|
|
<description summary="fractional surface scale information">
|
|
A global interface for requesting surfaces to use fractional scales.
|
|
</description>
|
|
|
|
<request name="destroy" type="destructor">
|
|
<description summary="unbind the fractional surface scale interface">
|
|
Informs the server that the client will not be using this protocol
|
|
object anymore. This does not affect any other objects,
|
|
wp_fractional_scale_v1 objects included.
|
|
</description>
|
|
</request>
|
|
|
|
<enum name="error">
|
|
<entry name="fractional_scale_exists" value="0"
|
|
summary="the surface already has a fractional_scale object associated"/>
|
|
</enum>
|
|
|
|
<request name="get_fractional_scale">
|
|
<description summary="extend surface interface for scale information">
|
|
Create an add-on object for the the wl_surface to let the compositor
|
|
request fractional scales. If the given wl_surface already has a
|
|
wp_fractional_scale_v1 object associated, the fractional_scale_exists
|
|
protocol error is raised.
|
|
</description>
|
|
<arg name="id" type="new_id" interface="wp_fractional_scale_v1"
|
|
summary="the new surface scale info interface id"/>
|
|
<arg name="surface" type="object" interface="wl_surface"
|
|
summary="the surface"/>
|
|
</request>
|
|
</interface>
|
|
|
|
<interface name="wp_fractional_scale_v1" version="1">
|
|
<description summary="fractional scale interface to a wl_surface">
|
|
An additional interface to a wl_surface object which allows the compositor
|
|
to inform the client of the preferred scale.
|
|
</description>
|
|
|
|
<request name="destroy" type="destructor">
|
|
<description summary="remove surface scale information for surface">
|
|
Destroy the fractional scale object. When this object is destroyed,
|
|
preferred_scale events will no longer be sent.
|
|
</description>
|
|
</request>
|
|
|
|
<event name="preferred_scale">
|
|
<description summary="notify of new preferred scale">
|
|
Notification of a new preferred scale for this surface that the
|
|
compositor suggests that the client should use.
|
|
|
|
The sent scale is the numerator of a fraction with a denominator of 120.
|
|
</description>
|
|
<arg name="scale" type="uint" summary="the new preferred scale"/>
|
|
</event>
|
|
</interface>
|
|
</protocol>
|