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wlr_raster: Add partial texture uploads to surface helper

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This commit is contained in:
Alexander Orzechowski 2024-09-14 16:42:24 -04:00
parent 7d87ae563e
commit 851440f59d
1 changed files with 90 additions and 2 deletions
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92
types/wlr_raster.c
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@ -124,6 +124,91 @@ struct wlr_texture *wlr_raster_obtain_texture(struct wlr_raster *raster,
return texture;
}
struct raster_update_state {
struct wlr_buffer *buffer;
pixman_region32_t damage;
struct wlr_raster *new_raster;
struct wlr_raster *old_raster;
struct wl_listener old_raster_destroy;
struct wl_listener new_raster_destroy;
struct wl_listener buffer_release;
};
static void destroy_raster_update_state(struct raster_update_state *state) {
wl_list_remove(&state->old_raster_destroy.link);
wl_list_remove(&state->new_raster_destroy.link);
wl_list_remove(&state->buffer_release.link);
pixman_region32_fini(&state->damage);
free(state);
}
static void raster_update_handle_new_raster_destroy(struct wl_listener *listener, void *data) {
struct raster_update_state *state = wl_container_of(listener, state, new_raster_destroy);
destroy_raster_update_state(state);
}
static void raster_update_handle_old_raster_destroy(struct wl_listener *listener, void *data) {
struct raster_update_state *state = wl_container_of(listener, state, old_raster_destroy);
// if the new raster already has a texture, there's nothing we can do to help.
if (state->new_raster->texture) {
assert(state->new_raster->texture->renderer == state->old_raster->texture->renderer);
destroy_raster_update_state(state);
return;
}
struct wlr_texture *texture = state->old_raster->texture;
if (!texture) {
destroy_raster_update_state(state);
return;
}
if (wlr_texture_update_from_buffer(texture, state->buffer, &state->damage)) {
raster_detach(state->old_raster, texture);
raster_attach(state->new_raster, texture);
}
destroy_raster_update_state(state);
}
static void raster_update_handle_buffer_release(struct wl_listener *listener, void *data) {
struct raster_update_state *state = wl_container_of(listener, state, buffer_release);
destroy_raster_update_state(state);
}
static struct wlr_raster *raster_update(struct wlr_raster *raster,
struct wlr_buffer *buffer, const pixman_region32_t *damage,
const struct wlr_raster_create_options *options) {
struct raster_update_state *state = calloc(1, sizeof(*state));
if (!state) {
return NULL;
}
struct wlr_raster *new_raster = wlr_raster_create(buffer, options);
if (!new_raster) {
free(state);
return NULL;
}
state->old_raster_destroy.notify = raster_update_handle_old_raster_destroy;
wl_signal_add(&raster->events.destroy, &state->old_raster_destroy);
state->new_raster_destroy.notify = raster_update_handle_new_raster_destroy;
wl_signal_add(&new_raster->events.destroy, &state->new_raster_destroy);
state->buffer_release.notify = raster_update_handle_buffer_release;
wl_signal_add(&buffer->events.release, &state->buffer_release);
state->new_raster = new_raster;
state->old_raster = raster;
state->buffer = buffer;
pixman_region32_init(&state->damage);
pixman_region32_copy(&state->damage, damage);
return new_raster;
}
struct surface_raster {
struct wlr_raster *raster;
struct wlr_surface *surface;
@ -245,9 +330,12 @@ struct wlr_raster *wlr_raster_from_surface(struct wlr_surface *surface) {
if (surface_raster->raster->buffer == surface->current.buffer) {
return wlr_raster_lock(surface_raster->raster);
}
}
raster = wlr_raster_create(surface->current.buffer, &options);
raster = raster_update(surface_raster->raster,
surface->current.buffer, &surface->buffer_damage, &options);
} else {
raster = wlr_raster_create(surface->current.buffer, &options);
}
if (!raster) {
return NULL;