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wlr_raster: Introduce invalidated signal

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If this raster becomes invalid meaning that the buffer neither
has a buffer or textures. The invalidated signal will be called
to signify to its owner that it should be recreated.
This commit is contained in:
Alexander Orzechowski 2024-02-24 08:35:56 -05:00
parent 204a2b733b
commit dbf10ebdf1
2 changed files with 16 additions and 0 deletions
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2
include/wlr/types/wlr_raster.h
View file

@ -23,6 +23,7 @@ struct wlr_allocator;
struct wlr_raster_source {
struct wlr_texture *texture;
struct wlr_allocator *allocator; // may be NULL
struct wlr_raster *raster;
struct wl_list link;
struct wl_listener renderer_destroy;
@ -43,6 +44,7 @@ struct wlr_raster {
struct {
struct wl_signal destroy;
struct wl_signal invalidated;
} events;
// private state

14
types/wlr_raster.c
View file

@ -23,6 +23,10 @@ static void raster_handle_buffer_release(struct wl_listener *listener, void *dat
raster->buffer = NULL;
wl_list_remove(&raster->buffer_release.link);
wl_list_init(&raster->buffer_release.link);
if (wl_list_empty(&raster->sources)) {
wl_signal_emit_mutable(&raster->events.invalidated, NULL);
}
}
struct wlr_raster *wlr_raster_create(struct wlr_buffer *buffer,
@ -34,6 +38,7 @@ struct wlr_raster *wlr_raster_create(struct wlr_buffer *buffer,
wl_list_init(&raster->sources);
wl_signal_init(&raster->events.destroy);
wl_signal_init(&raster->events.invalidated);
assert(buffer);
raster->opaque = buffer_is_opaque(buffer);
@ -58,6 +63,11 @@ static void raster_source_destroy(struct wlr_raster_source *source) {
wl_list_remove(&source->link);
wl_list_remove(&source->renderer_destroy.link);
wl_list_remove(&source->allocator_destroy.link);
if (!source->raster->buffer && wl_list_empty(&source->raster->sources)) {
wl_signal_emit_mutable(&source->raster->events.invalidated, NULL);
}
free(source);
}
@ -68,6 +78,9 @@ static void raster_consider_destroy(struct wlr_raster *raster) {
wl_signal_emit_mutable(&raster->events.destroy, NULL);
// we don't want to call invalidation signals as we're destroying the raster
wl_signal_init(&raster->events.invalidated);
struct wlr_raster_source *source, *source_tmp;
wl_list_for_each_safe(source, source_tmp, &raster->sources, link) {
wlr_texture_destroy(source->texture);
@ -150,6 +163,7 @@ static void raster_attach_with_allocator(struct wlr_raster *raster,
wl_list_insert(&raster->sources, &source->link);
source->texture = texture;
source->allocator = allocator;
source->raster = raster;
}
static struct wlr_texture *wlr_raster_get_texture(struct wlr_raster *raster,