1 /*
2  * Copyright © 2010 NVIDIA Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * 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
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21  * DEALINGS IN THE SOFTWARE.
22  */
23 
24 #ifdef HAVE_DIX_CONFIG_H
25 #include <dix-config.h>
26 #endif
27 
28 #ifndef _MISYNC_H_
29 #define _MISYNC_H_
30 
31 typedef struct _SyncObject SyncObject;
32 typedef struct _SyncFence SyncFence;
33 typedef struct _SyncTrigger SyncTrigger;
34 
35 typedef void (*SyncScreenCreateFenceFunc) (ScreenPtr pScreen,
36                                            SyncFence * pFence,
37                                            Bool initially_triggered);
38 typedef void (*SyncScreenDestroyFenceFunc) (ScreenPtr pScreen,
39                                             SyncFence * pFence);
40 
41 typedef struct _syncScreenFuncs {
42     SyncScreenCreateFenceFunc CreateFence;
43     SyncScreenDestroyFenceFunc DestroyFence;
44 } SyncScreenFuncsRec, *SyncScreenFuncsPtr;
45 
46 
47 extern _X_EXPORT void
48 miSyncScreenCreateFence(ScreenPtr pScreen, SyncFence * pFence,
49                         Bool initially_triggered);
50 extern _X_EXPORT void
51  miSyncScreenDestroyFence(ScreenPtr pScreen, SyncFence * pFence);
52 
53 typedef void (*SyncFenceSetTriggeredFunc) (SyncFence * pFence);
54 typedef void (*SyncFenceResetFunc) (SyncFence * pFence);
55 typedef Bool (*SyncFenceCheckTriggeredFunc) (SyncFence * pFence);
56 typedef void (*SyncFenceAddTriggerFunc) (SyncTrigger * pTrigger);
57 typedef void (*SyncFenceDeleteTriggerFunc) (SyncTrigger * pTrigger);
58 
59 typedef struct _syncFenceFuncs {
60     SyncFenceSetTriggeredFunc SetTriggered;
61     SyncFenceResetFunc Reset;
62     SyncFenceCheckTriggeredFunc CheckTriggered;
63     SyncFenceAddTriggerFunc AddTrigger;
64     SyncFenceDeleteTriggerFunc DeleteTrigger;
65 } SyncFenceFuncsRec, *SyncFenceFuncsPtr;
66 
67 extern _X_EXPORT void
68 
69 miSyncInitFence(ScreenPtr pScreen, SyncFence * pFence,
70                 Bool initially_triggered);
71 extern _X_EXPORT void
72  miSyncDestroyFence(SyncFence * pFence);
73 extern _X_EXPORT void
74  miSyncTriggerFence(SyncFence * pFence);
75 
76 extern _X_EXPORT SyncScreenFuncsPtr miSyncGetScreenFuncs(ScreenPtr pScreen);
77 extern _X_EXPORT Bool
78  miSyncSetup(ScreenPtr pScreen);
79 
80 Bool
81 miSyncFenceCheckTriggered(SyncFence * pFence);
82 
83 void
84 miSyncFenceSetTriggered(SyncFence * pFence);
85 
86 void
87 miSyncFenceReset(SyncFence * pFence);
88 
89 void
90 miSyncFenceAddTrigger(SyncTrigger * pTrigger);
91 
92 void
93 miSyncFenceDeleteTrigger(SyncTrigger * pTrigger);
94 
95 int
96 miSyncInitFenceFromFD(DrawablePtr pDraw, SyncFence *pFence, int fd, BOOL initially_triggered);
97 
98 int
99 miSyncFDFromFence(DrawablePtr pDraw, SyncFence *pFence);
100 
101 #endif                          /* _MISYNC_H_ */
102