1/* swc: libswc/wayland_buffer.c
 2 *
 3 * Copyright (c) 2013 Michael Forney
 4 *
 5 * Permission is hereby granted, free of charge, to any person obtaining a copy
 6 * of this software and associated documentation files (the "Software"), to deal
 7 * in the Software without restriction, including without limitation the rights
 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 * copies of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#include "wayland_buffer.h"
25#include "internal.h"
26#include "shm.h"
27#include "util.h"
28
29#include <wld/pixman.h>
30#include <wld/wld.h>
31
32static const struct wl_buffer_interface buffer_impl = {
33    .destroy = destroy_resource,
34};
35
36struct wld_buffer *
37wayland_buffer_get(struct wl_resource *resource)
38{
39	if (wl_resource_instance_of(resource, &wl_buffer_interface, &buffer_impl)) {
40		return wl_resource_get_user_data(resource);
41	}
42
43	return NULL;
44}
45
46static void
47destroy_buffer(struct wl_resource *resource)
48{
49	struct wld_buffer *buffer = wl_resource_get_user_data(resource);
50	wld_buffer_unreference(buffer);
51}
52
53struct wl_resource *
54wayland_buffer_create_resource(struct wl_client *client, uint32_t version,
55                               uint32_t id, struct wld_buffer *buffer)
56{
57	struct wl_resource *resource;
58
59	resource = wl_resource_create(client, &wl_buffer_interface, version, id);
60	if (resource) {
61		wl_resource_set_implementation(resource, &buffer_impl, buffer,
62		                               &destroy_buffer);
63	}
64	return resource;
65}