Imported Upstream version 1.15.1
[deb_xorg-server.git] / dri3 / dri3_screen.c
1 /*
2 * Copyright © 2013 Keith Packard
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission. The copyright holders make no representations
11 * about the suitability of this software for any purpose. It is provided "as
12 * is" without express or implied warranty.
13 *
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 * OF THIS SOFTWARE.
21 */
22
23 #ifdef HAVE_XORG_CONFIG_H
24 #include <xorg-config.h>
25 #endif
26
27 #include "dri3_priv.h"
28 #include <syncsdk.h>
29 #include <misync.h>
30 #include <misyncshm.h>
31 #include <randrstr.h>
32
33 int
34 dri3_open(ClientPtr client, ScreenPtr screen, RRProviderPtr provider, int *fd)
35 {
36 dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
37 dri3_screen_info_ptr info = ds->info;
38 int rc;
39
40 if (!info || !info->open)
41 return BadMatch;
42
43 rc = (*info->open) (screen, provider, fd);
44 if (rc != Success)
45 return rc;
46
47 return Success;
48 }
49
50 int
51 dri3_pixmap_from_fd(PixmapPtr *ppixmap, ScreenPtr screen, int fd,
52 CARD16 width, CARD16 height, CARD16 stride, CARD8 depth, CARD8 bpp)
53 {
54 dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
55 dri3_screen_info_ptr info = ds->info;
56 PixmapPtr pixmap;
57
58 if (!info || !info->pixmap_from_fd)
59 return BadImplementation;
60
61 pixmap = (*info->pixmap_from_fd) (screen, fd, width, height, stride, depth, bpp);
62 if (!pixmap)
63 return BadAlloc;
64
65 *ppixmap = pixmap;
66 return Success;
67 }
68
69 int
70 dri3_fd_from_pixmap(int *pfd, PixmapPtr pixmap, CARD16 *stride, CARD32 *size)
71 {
72 ScreenPtr screen = pixmap->drawable.pScreen;
73 dri3_screen_priv_ptr ds = dri3_screen_priv(screen);
74 dri3_screen_info_ptr info = ds->info;
75 int fd;
76
77 if (!info || !info->fd_from_pixmap)
78 return BadImplementation;
79
80 fd = (*info->fd_from_pixmap)(screen, pixmap, stride, size);
81 if (fd < 0)
82 return BadAlloc;
83 *pfd = fd;
84 return Success;
85 }
86