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types/wlr_buffer: introduce wlr_buffer_resource_interface

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Adds `wlr_buffer_resource_interface` and `wlr_buffer_register_resource_interface`,
which allows a user to register a way to create a wlr_buffer from a specific
wl_resource.
This commit is contained in:
Simon Zeni 2021-07-12 11:50:34 -04:00 • committed by Simon Ser
parent f09c88c1b7
commit 646a25667e
2 changed files with 36 additions and 0 deletions
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22
types/wlr_buffer.c
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@ -159,6 +159,28 @@ static bool buffer_is_shm_client_buffer(struct wlr_buffer *buffer);
static struct wlr_shm_client_buffer *shm_client_buffer_from_buffer(
struct wlr_buffer *buffer);
/* struct wlr_buffer_resource_interface */
static struct wl_array buffer_resource_interfaces = {0};
void wlr_buffer_register_resource_interface(
const struct wlr_buffer_resource_interface *iface) {
assert(iface);
assert(iface->is_instance);
assert(iface->from_resource);
const struct wlr_buffer_resource_interface **iface_ptr;
wl_array_for_each(iface_ptr, &buffer_resource_interfaces) {
if (*iface_ptr == iface) {
wlr_log(WLR_DEBUG, "wlr_resource_buffer_interface %s has already"
"been registered", iface->name);
return;
}
}
iface_ptr = wl_array_add(&buffer_resource_interfaces, sizeof(iface));
*iface_ptr = iface;
}
struct wlr_buffer *wlr_buffer_from_resource(struct wl_resource *resource) {
assert(resource && wlr_resource_is_buffer(resource));