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Merge pull request #1396 from emersion/fix-destroyed-subsurface

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surface: fix destroyed subsurfaces handling
This commit is contained in:
Drew DeVault 2018-11-26 18:24:23 -05:00 committed by GitHub
commit ed1ffddba8
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 11 additions and 5 deletions
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4
include/wlr/types/wlr_compositor.h
View file

@ -43,6 +43,10 @@ struct wlr_compositor *wlr_compositor_create(struct wl_display *display,
bool wlr_surface_is_subsurface(struct wlr_surface *surface); bool wlr_surface_is_subsurface(struct wlr_surface *surface);
/**
* Get a subsurface from a surface. Can return NULL if the subsurface has been
* destroyed.
*/
struct wlr_subsurface *wlr_subsurface_from_wlr_surface( struct wlr_subsurface *wlr_subsurface_from_wlr_surface(
struct wlr_surface *surface); struct wlr_surface *surface);

12
types/wlr_surface.c
View file

@ -376,7 +376,7 @@ static void surface_commit_pending(struct wlr_surface *surface) {
} }
static bool subsurface_is_synchronized(struct wlr_subsurface *subsurface) { static bool subsurface_is_synchronized(struct wlr_subsurface *subsurface) {
while (1) { while (subsurface != NULL) {
if (subsurface->synchronized) { if (subsurface->synchronized) {
return true; return true;
} }
@ -436,15 +436,14 @@ static void surface_commit(struct wl_client *client,
struct wl_resource *resource) { struct wl_resource *resource) {
struct wlr_surface *surface = wlr_surface_from_resource(resource); struct wlr_surface *surface = wlr_surface_from_resource(resource);
if (wlr_surface_is_subsurface(surface)) { struct wlr_subsurface *subsurface = wlr_surface_is_subsurface(surface) ?
struct wlr_subsurface *subsurface = wlr_subsurface_from_wlr_surface(surface) : NULL;
wlr_subsurface_from_wlr_surface(surface); if (subsurface != NULL) {
subsurface_commit(subsurface); subsurface_commit(subsurface);
} else { } else {
surface_commit_pending(surface); surface_commit_pending(surface);
} }
struct wlr_subsurface *subsurface;
wl_list_for_each(subsurface, &surface->subsurfaces, parent_link) { wl_list_for_each(subsurface, &surface->subsurfaces, parent_link) {
subsurface_parent_commit(subsurface, false); subsurface_parent_commit(subsurface, false);
} }
@ -904,6 +903,9 @@ struct wlr_surface *wlr_surface_get_root_surface(struct wlr_surface *surface) {
while (wlr_surface_is_subsurface(surface)) { while (wlr_surface_is_subsurface(surface)) {
struct wlr_subsurface *subsurface = struct wlr_subsurface *subsurface =
wlr_subsurface_from_wlr_surface(surface); wlr_subsurface_from_wlr_surface(surface);
if (subsurface == NULL) {
break;
}
surface = subsurface->parent; surface = subsurface->parent;
} }
return surface; return surface;