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types/wlr_buffer: create custom wlr_buffer from wl_resource

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This commit is contained in:
Simon Zeni 2021-07-14 16:35:14 -04:00 • committed by Simon Ser
parent 646a25667e
commit 0778151f94
1 changed files with 26 additions and 2 deletions
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24
types/wlr_buffer.c
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@ -181,6 +181,18 @@ void wlr_buffer_register_resource_interface(
*iface_ptr = iface;
}
static const struct wlr_buffer_resource_interface *get_buffer_resource_iface(
struct wl_resource *resource) {
struct wlr_buffer_resource_interface **iface_ptr;
wl_array_for_each(iface_ptr, &buffer_resource_interfaces) {
if ((*iface_ptr)->is_instance(resource)) {
return *iface_ptr;
}
}
return NULL;
}
struct wlr_buffer *wlr_buffer_from_resource(struct wl_resource *resource) {
assert(resource && wlr_resource_is_buffer(resource));
@ -202,10 +214,22 @@ struct wlr_buffer *wlr_buffer_from_resource(struct wl_resource *resource) {
wlr_drm_buffer_from_resource(resource);
buffer = wlr_buffer_lock(&drm_buffer->base);
} else {
const struct wlr_buffer_resource_interface *iface =
get_buffer_resource_iface(resource);
if (!iface) {
wlr_log(WLR_ERROR, "Unknown buffer type");
return NULL;
}
struct wlr_buffer *custom_buffer = iface->from_resource(resource);
if (!custom_buffer) {
wlr_log(WLR_ERROR, "Failed to create %s buffer", iface->name);
return NULL;
}
buffer = wlr_buffer_lock(custom_buffer);
}
return buffer;
}