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buffer: add wlr_client_buffer_get

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This commit is contained in:
Simon Ser 2020-07-28 10:46:46 +02:00
parent b0a663d39d
commit 0b40d09a21
2 changed files with 15 additions and 2 deletions
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5
include/wlr/types/wlr_buffer.h
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@ -103,6 +103,11 @@ struct wlr_client_buffer {
struct wlr_renderer;
/**
* Get a client buffer from a generic buffer. If the buffer isn't a client
* buffer, returns NULL.
*/
struct wlr_client_buffer *wlr_client_buffer_get(struct wlr_buffer *buffer);
/**
* Check if a resource is a wl_buffer resource.
*/

12
types/wlr_buffer.c
View file

@ -96,10 +96,18 @@ bool wlr_resource_get_buffer_size(struct wl_resource *resource,
static const struct wlr_buffer_impl client_buffer_impl;
struct wlr_client_buffer *wlr_client_buffer_get(struct wlr_buffer *buffer) {
if (buffer->impl != &client_buffer_impl) {
return NULL;
}
return (struct wlr_client_buffer *)buffer;
}
static struct wlr_client_buffer *client_buffer_from_buffer(
struct wlr_buffer *buffer) {
assert(buffer->impl == &client_buffer_impl);
return (struct wlr_client_buffer *) buffer;
struct wlr_client_buffer *client_buffer = wlr_client_buffer_get(buffer);
assert(client_buffer != NULL);
return client_buffer;
}
static void client_buffer_destroy(struct wlr_buffer *_buffer) {