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a09e091a JB |
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_DIX_CONFIG_H | |
24 | #include <dix-config.h> | |
25 | #endif | |
26 | ||
27 | #include "scrnintstr.h" | |
28 | #include "misync.h" | |
29 | #include "misyncstr.h" | |
30 | #include "misyncfd.h" | |
31 | #include "pixmapstr.h" | |
32 | ||
33 | static DevPrivateKeyRec syncFdScreenPrivateKey; | |
34 | ||
35 | typedef struct _SyncFdScreenPrivate { | |
36 | SyncFdScreenFuncsRec funcs; | |
37 | } SyncFdScreenPrivateRec, *SyncFdScreenPrivatePtr; | |
38 | ||
39 | static inline SyncFdScreenPrivatePtr sync_fd_screen_priv(ScreenPtr pScreen) | |
40 | { | |
41 | if (!dixPrivateKeyRegistered(&syncFdScreenPrivateKey)) | |
42 | return NULL; | |
43 | return dixLookupPrivate(&pScreen->devPrivates, &syncFdScreenPrivateKey); | |
44 | } | |
45 | ||
46 | int | |
47 | miSyncInitFenceFromFD(DrawablePtr pDraw, SyncFence *pFence, int fd, BOOL initially_triggered) | |
48 | ||
49 | { | |
50 | SyncFdScreenPrivatePtr priv = sync_fd_screen_priv(pDraw->pScreen); | |
51 | ||
52 | if (!priv) | |
53 | return BadMatch; | |
54 | ||
55 | return (*priv->funcs.CreateFenceFromFd)(pDraw->pScreen, pFence, fd, initially_triggered); | |
56 | } | |
57 | ||
58 | int | |
59 | miSyncFDFromFence(DrawablePtr pDraw, SyncFence *pFence) | |
60 | { | |
61 | SyncFdScreenPrivatePtr priv = sync_fd_screen_priv(pDraw->pScreen); | |
62 | ||
63 | if (!priv) | |
64 | return -1; | |
65 | ||
66 | return (*priv->funcs.GetFenceFd)(pDraw->pScreen, pFence); | |
67 | } | |
68 | ||
69 | _X_EXPORT Bool miSyncFdScreenInit(ScreenPtr pScreen, | |
70 | const SyncFdScreenFuncsRec *funcs) | |
71 | { | |
72 | SyncFdScreenPrivatePtr priv; | |
73 | ||
74 | /* Check to see if we've already been initialized */ | |
75 | if (sync_fd_screen_priv(pScreen) != NULL) | |
76 | return FALSE; | |
77 | ||
78 | if (!miSyncSetup(pScreen)) | |
79 | return FALSE; | |
80 | ||
81 | if (!dixPrivateKeyRegistered(&syncFdScreenPrivateKey)) { | |
82 | if (!dixRegisterPrivateKey(&syncFdScreenPrivateKey, PRIVATE_SCREEN, 0)) | |
83 | return FALSE; | |
84 | } | |
85 | ||
86 | priv = calloc(1, sizeof (SyncFdScreenPrivateRec)); | |
87 | if (!priv) | |
88 | return FALSE; | |
89 | ||
90 | /* Will require version checks when there are multiple versions | |
91 | * of the funcs structure | |
92 | */ | |
93 | ||
94 | priv->funcs = *funcs; | |
95 | ||
96 | dixSetPrivate(&pScreen->devPrivates, &syncFdScreenPrivateKey, priv); | |
97 | ||
98 | return TRUE; | |
99 | } |