wlroots/backend/wayland
Simon Ser 507d9bc19e Add wlr_output_impl.rollback
Most of the pending output state is not forwarded to the backend prior
to an output commit. For instance, wlr_output_set_mode just stashes the
mode without calling any wlr_output_impl function.
wlr_output_impl.commit is responsible for applying the pending mode.

However, there are exceptions to this rule. The first one is
wlr_output_attach_render. It won't go away before renderer v6 is
complete, because it needs to set the current EGL surface.

The second one is wlr_output_attach_buffer.
wlr_output_impl.attach_buffer is removed in [1].

When wlr_output_rollback is called, all pending state is supposed to be
cleared. This works for all the state except the two exceptions
mentionned above. To fix this, introduce wlr_output_impl.rollback.

Right now, the backend resets the current EGL surface. This prevents GL
commands from affecting the output after wlr_output_rollback.

This patch is required for FBO-based outputs to work properly. The
compositor might be using FBOs for its own purposes [2], having leftover
FBO state can have bad consequences.

[1]: https://github.com/swaywm/wlroots/pull/2097
[2]: https://github.com/swaywm/wlroots/pull/2063#issuecomment-597614312
2020-04-08 17:33:00 +02:00
..
backend.c backend/wayland: handle display errors more gracefully 2020-01-09 07:48:30 -07:00
meson.build backend/wayland: rename wl_seat.c to seat.c 2020-03-04 03:21:40 +01:00
output.c Add wlr_output_impl.rollback 2020-04-08 17:33:00 +02:00
seat.c backend/wayland: close keymap FD 2020-03-17 13:37:53 +01:00
tablet_v2.c Clean up wayland backend tablet support 2019-09-26 19:41:19 +03:00