| 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 | } |