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fifo-v1: new protocol implementation

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Implement fifo-v1 protocol: the capability for clients to explicitly queue wl_surface
commits.

The design of the wl_surface interface defines a double buffer, which is intended to support only
(from the point of view of the client) what is sometimes called the 'mailbox' presentation mode:
each request on a wl_surface operates on an accumulated pending state until a .commit request is
issued, immediately and atomically replacing the wl_surface's current state. This means that only
the state related to the latest .commit request will be latched onto.

fifo-v1 is a protocol that aims to support an important use case, namely the FIFO display
presentation mode, which allows to queue the accumulated pending state until the next latching
deadline occurs.

Signed-off-by: Sergio Gómez <sergio.g.delreal@gmail.com>
This commit is contained in:
Sergio Gómez 2025-11-26 10:55:35 -05:00
parent 8e7a0f1a9a
commit 6add0125fd
4 changed files with 472 additions and 0 deletions
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1
types/meson.build
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@ -77,6 +77,7 @@ wlr_files += files(
'wlr_presentation_time.c',
'wlr_primary_selection_v1.c',
'wlr_primary_selection.c',
'wlr_fifo_v1.c',
'wlr_region.c',
'wlr_relative_pointer_v1.c',
'wlr_screencopy_v1.c',