mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2025-11-18 06:59:44 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

scene/output-layout: improve ownership logic

Browse source 
This commit ensures that outputs that weren't created by the output
layout helper aren't destroyed on the output layout change.

Consider the following piece of logic:

// struct wlr_output *o1, *o2;
// struct wlr_scene *scene;
// struct wlr_output_layout *layout;
wlr_scene_attach_output_layout(scene, layout);
wlr_output_layout_add_auto(layout, o1);
struct wlr_scene_output *so2 = wlr_scene_output_create(scene, o2);
wlr_output_layout_move(layout, o1, 100, 200);
// so2 is invalid now
This commit is contained in:
Kirill Primak 2022-05-31 21:40:03 +03:00 • committed by Isaac Freund
parent d3bc17d5d1
commit 0c2eed533e
2 changed files with 80 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/wlr/types/wlr_scene.h
View file

@ -406,8 +406,10 @@ struct wlr_scene_output *wlr_scene_get_scene_output(struct wlr_scene *scene,
/**
* Attach an output layout to a scene.
*
* Outputs in the output layout are automatically added to the scene. Any
* change to the output layout is mirrored to the scene-graph outputs.
* Adding, removing, or repositioning an output in the output layout
* will respectively add, remove or reposition a corresponding
* scene-graph output. When the output layout is destroyed, scene-graph
* outputs which were created by this helper will be destroyed.
*/
bool wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_output_layout *output_layout);