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Michel Dänzer 6e6a38342e wayland/surface: Defer meta_wayland_transaction_apply for dma-bufs
Until all dma-buf file descriptors for all buffers in the transaction
are readable, which corresponds to when the client drawing to the
buffers has finished.

This fixes https://gitlab.gnome.org/GNOME/mutter/-/issues/1162 if the
GPU & drivers support high priority contexts which can preempt lower
priority contexts.

v2:
* Also remove dma-buf fds from transaction and try applying it from
  pending_buffer_resource_destroyed. Avoids freeze due to leaving a
  GSource based on a closed fd attached if a client destroys a wl_buffer
  which is part of a transaction which was committed but not applied
  yet. (Robert Mader)
* Tweak transaction cleanup logic in wl_surface_destructor.
v3:
* Adapt to meta_wayland_dma_buf_get_source.
v4:
* Adapt to new commits using transactions for (sub-)surface destruction,
  drop code to remove destroyed surfaces from pending transactions.
v5:
* Use g_clear_pointer in meta_wayland_transaction_destroy.
  (Georges Basile Stavracas Neto)
* Add spaces between type casts and values. (Carlos Garnacho)
* Use (gpointer *) instead of (void**). (Carlos Garnacho)
* Use gpointer instead of void * in
  meta_wayland_transaction_dma_buf_dispatch.
v6:
* Use g_hash_table_remove in meta_wayland_transaction_dma_buf_dispatch.
  (Carlos Garnacho)
v7: (Jonas Ådahl)
* Move include of glib-unix.h below that of meta-wayland-transaction.h.
* Split up g_hash_table_iter_next call to multiple lines in
  meta_wayland_transaction_commit.
* Call g_source_destroy as well as g_source_unref when freeing a
  committed but not yet applied transaction (during mutter shutdown).
v8:
* Drop dma_buf_source_destroy, can use g_source_destroy directly.
  (Jonas Ådahl)

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1880>
2022-12-01 16:35:19 +01:00
.gitlab/issue_templates gitlab: Add missing < in markdown comment tag 2020-02-14 03:10:28 +00:00
.gitlab-ci ci: Only launch a single mocked D-Bus environment for all tests 2022-11-01 21:04:21 +00:00
clutter clutter/actor: Stop transitions in children when removing 2022-11-25 10:26:52 +00:00
cogl g-i: Drop unneeded since/stability annotations 2022-11-22 13:32:52 +01:00
data data/udev: Don't disable KMS modifiers on newer i915 systems 2022-11-04 18:23:15 +00:00
doc docs/cogl-pango: Update urlmap 2022-11-22 13:32:52 +01:00
meson build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
po Update Slovak translation 2022-11-22 22:15:02 +00:00
src wayland/surface: Defer meta_wayland_transaction_apply for dma-bufs 2022-12-01 16:35:19 +01:00
subprojects build: bump ABI to sysprof-capture-4 2020-07-28 11:13:30 -07:00
tools tools/get-state: Round refresh rates to three decimal places 2022-08-19 15:28:56 +00:00
.gitignore wayland: Remove Gtk primary selection protocol 2022-05-18 20:15:08 +00:00
.gitlab-ci.yml ci: Upgrade python-dbusmock 2022-11-25 21:32:06 +01:00
check-style.py ci: Avoid deadlock while reading uncrustify output 2021-08-23 17:40:43 +02:00
config.h.meson core: Make sound player feature optional 2022-09-02 08:04:31 +00:00
COPYING Updated obsolete FSF postal address in COPYING 2014-01-12 08:44:30 +07:00
HACKING.md docs: Update coding style link 2021-11-09 19:52:14 +01:00
meson_options.txt core: Make sound player feature optional 2022-09-02 08:04:31 +00:00
meson.build build: Replace custom post-install script 2022-11-19 02:21:05 +01:00
mutter.doap mutter.doap: Add marge-bot as a maintainer 2020-11-16 11:59:45 +01:00
NEWS Bump version to 43.1 2022-11-03 16:19:36 +01:00
README.md readme: Fix typo 2022-07-29 16:52:12 -04:00

Mutter

Mutter is a Wayland display server and X11 window manager and compositor library.

When used as a Wayland display server, it runs on top of KMS and libinput. It implements the compositor side of the Wayland core protocol as well as various protocol extensions. It also has functionality related to running X11 applications using Xwayland.

When used on top of Xorg it acts as a X11 window manager and compositing manager.

It contains functionality related to, among other things, window management, window compositing, focus tracking, workspace management, keybindings and monitor configuration.

Internally it uses a fork of Cogl, a hardware acceleration abstraction library used to simplify usage of OpenGL pipelines, as well as a fork of Clutter, a scene graph and user interface toolkit.

Mutter is used by, for example, GNOME Shell, the GNOME core user interface, and by Gala, elementary OS's window manager. It can also be run standalone, using the command "mutter", but just running plain mutter is only intended for debugging purposes.

Contributing

To contribute, open merge requests at https://gitlab.gnome.org/GNOME/mutter.

It can be useful to look at the documentation available at the Wiki.

The API documentation is available at:

Coding style and conventions

See HACKING.md.

Git messages

Commit messages should follow the GNOME commit message guidelines. We require an URL to either an issue or a merge request in each commit. Try to always prefix commit subjects with a relevant topic, such as compositor: or clutter/actor:, and it's always better to write too much in the commit message body than too little.

Default branch

The default development branch is main. If you still have a local checkout under the old name, use:

git checkout master
git branch -m master main
git fetch
git branch --unset-upstream
git branch -u origin/main
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/main

License

Mutter is distributed under the terms of the GNU General Public License, version 2 or later. See the COPYING file for detalis.