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subcompositor: convert to try_from

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References: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/884
This commit is contained in:
Simon Ser 2023-02-01 20:14:39 +01:00
parent c5f7f8ab98
commit eb3e8f08a8
3 changed files with 22 additions and 40 deletions
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13
include/wlr/types/wlr_subcompositor.h
View file

@ -62,18 +62,13 @@ struct wlr_subcompositor {
} events; } events;
}; };
/**
* Returns true if the surface has the subsurface role.
*/
bool wlr_surface_is_subsurface(struct wlr_surface *surface);
/** /**
* Get a struct wlr_subsurface from a struct wlr_surface. * Get a struct wlr_subsurface from a struct wlr_surface.
* Asserts that the surface has the subsurface role. *
* May return NULL even if the surface has the subsurface role if the * Returns NULL if the surface doesn't have the subsurface role or if
* corresponding subsurface has been destroyed. * the subsurface has been destroyed.
*/ */
struct wlr_subsurface *wlr_subsurface_from_wlr_surface( struct wlr_subsurface *wlr_subsurface_try_from_wlr_surface(
struct wlr_surface *surface); struct wlr_surface *surface);
struct wlr_subcompositor *wlr_subcompositor_create(struct wl_display *display); struct wlr_subcompositor *wlr_subcompositor_create(struct wl_display *display);

8
types/wlr_compositor.c
View file

@ -812,12 +812,8 @@ void wlr_surface_unlock_cached(struct wlr_surface *surface, uint32_t seq) {
} }
struct wlr_surface *wlr_surface_get_root_surface(struct wlr_surface *surface) { struct wlr_surface *wlr_surface_get_root_surface(struct wlr_surface *surface) {
while (wlr_surface_is_subsurface(surface)) { struct wlr_subsurface *subsurface;
struct wlr_subsurface *subsurface = while ((subsurface = wlr_subsurface_try_from_wlr_surface(surface))) {
wlr_subsurface_from_wlr_surface(surface);
if (subsurface == NULL) {
break;
}
surface = subsurface->parent; surface = subsurface->parent;
} }
return surface; return surface;

41
types/wlr_subcompositor.c
View file

@ -16,10 +16,7 @@ static bool subsurface_is_synchronized(struct wlr_subsurface *subsurface) {
return true; return true;
} }
if (!wlr_surface_is_subsurface(subsurface->parent)) { subsurface = wlr_subsurface_try_from_wlr_surface(subsurface->parent);
break;
}
subsurface = wlr_subsurface_from_wlr_surface(subsurface->parent);
} }
return false; return false;
@ -197,12 +194,10 @@ static void subsurface_consider_map(struct wlr_subsurface *subsurface) {
return; return;
} }
if (wlr_surface_is_subsurface(subsurface->parent)) { struct wlr_subsurface *parent =
struct wlr_subsurface *parent = wlr_subsurface_try_from_wlr_surface(subsurface->parent);
wlr_subsurface_from_wlr_surface(subsurface->parent); if (parent == NULL || !parent->mapped) {
if (parent == NULL || !parent->mapped) { return;
return;
}
} }
// Now we can map the subsurface // Now we can map the subsurface
@ -242,16 +237,16 @@ static void subsurface_unmap(struct wlr_subsurface *subsurface) {
} }
static void subsurface_role_commit(struct wlr_surface *surface) { static void subsurface_role_commit(struct wlr_surface *surface) {
struct wlr_subsurface *subsurface = struct wlr_subsurface *subsurface = wlr_subsurface_try_from_wlr_surface(surface);
wlr_subsurface_from_wlr_surface(surface); assert(subsurface != NULL);
subsurface_consider_map(subsurface); subsurface_consider_map(subsurface);
} }
static void subsurface_role_precommit(struct wlr_surface *surface, static void subsurface_role_precommit(struct wlr_surface *surface,
const struct wlr_surface_state *state) { const struct wlr_surface_state *state) {
struct wlr_subsurface *subsurface = struct wlr_subsurface *subsurface = wlr_subsurface_try_from_wlr_surface(surface);
wlr_subsurface_from_wlr_surface(surface); assert(subsurface != NULL);
if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) { if (state->committed & WLR_SURFACE_STATE_BUFFER && state->buffer == NULL) {
// This is a NULL commit // This is a NULL commit
@ -260,8 +255,8 @@ static void subsurface_role_precommit(struct wlr_surface *surface,
} }
static void subsurface_role_destroy(struct wlr_surface *surface) { static void subsurface_role_destroy(struct wlr_surface *surface) {
struct wlr_subsurface *subsurface = struct wlr_subsurface *subsurface = wlr_subsurface_try_from_wlr_surface(surface);
wlr_subsurface_from_wlr_surface(surface); assert(subsurface != NULL);
if (subsurface->has_cache) { if (subsurface->has_cache) {
wlr_surface_unlock_cached(subsurface->surface, wlr_surface_unlock_cached(subsurface->surface,
@ -403,13 +398,10 @@ static struct wlr_subsurface *subsurface_create(struct wlr_surface *surface,
return subsurface; return subsurface;
} }
bool wlr_surface_is_subsurface(struct wlr_surface *surface) { struct wlr_subsurface *wlr_subsurface_try_from_wlr_surface(struct wlr_surface *surface) {
return surface->role == &subsurface_role; if (surface->role != &subsurface_role) {
} return NULL;
}
struct wlr_subsurface *wlr_subsurface_from_wlr_surface(
struct wlr_surface *surface) {
assert(wlr_surface_is_subsurface(surface));
return (struct wlr_subsurface *)surface->role_data; return (struct wlr_subsurface *)surface->role_data;
} }
@ -435,8 +427,7 @@ static void subcompositor_handle_get_subsurface(struct wl_client *client,
return; return;
} }
if (wlr_surface_is_subsurface(surface) && if (wlr_subsurface_try_from_wlr_surface(surface) != NULL) {
wlr_subsurface_from_wlr_surface(surface) != NULL) {
wl_resource_post_error(resource, wl_resource_post_error(resource,
WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE, WL_SUBCOMPOSITOR_ERROR_BAD_SURFACE,
"%s%" PRIu32 ": wl_surface@%" PRIu32 " is already a sub-surface", "%s%" PRIu32 ": wl_surface@%" PRIu32 " is already a sub-surface",