misyncstr.h revision 1b5d61b8 
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 _MISYNCSTR_H_
29#define _MISYNCSTR_H_
30
31#include <stdint.h>
32#include "dix.h"
33#include "misync.h"
34#include "scrnintstr.h"
35#include <X11/extensions/syncconst.h>
36
37/* Sync object types */
38#define SYNC_COUNTER		0
39#define SYNC_FENCE		1
40
41typedef struct _SyncObject {
42    ClientPtr client;           /* Owning client. 0 for system counters */
43    struct _SyncTriggerList *pTriglist; /* list of triggers */
44    XID id;                     /* resource ID */
45    unsigned char type;         /* SYNC_* */
46    Bool beingDestroyed;        /* in process of going away */
47} SyncObject;
48
49typedef struct _SyncCounter {
50    SyncObject sync;            /* Common sync object data */
51    int64_t value;              /* counter value */
52    struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */
53} SyncCounter;
54
55struct _SyncFence {
56    SyncObject sync;            /* Common sync object data */
57    ScreenPtr pScreen;          /* Screen of this fence object */
58    SyncFenceFuncsRec funcs;    /* Funcs for performing ops on fence */
59    Bool triggered;             /* fence state */
60    PrivateRec *devPrivates;    /* driver-specific per-fence data */
61};
62
63struct _SyncTrigger {
64    SyncObject *pSync;
65    int64_t wait_value;         /* wait value */
66    unsigned int value_type;    /* Absolute or Relative */
67    unsigned int test_type;     /* transition or Comparision type */
68    int64_t test_value;         /* trigger event threshold value */
69    Bool (*CheckTrigger)(struct _SyncTrigger *pTrigger,
70                         int64_t newval);
71    void (*TriggerFired)(struct _SyncTrigger *pTrigger);
72    void (*CounterDestroyed)(struct _SyncTrigger *pTrigger);
73};
74
75typedef struct _SyncTriggerList {
76    SyncTrigger *pTrigger;
77    struct _SyncTriggerList *next;
78} SyncTriggerList;
79
80extern DevPrivateKeyRec miSyncScreenPrivateKey;
81
82#define SYNC_SCREEN_PRIV(pScreen) 				\
83    (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates,	\
84					 &miSyncScreenPrivateKey)
85
86typedef struct _syncScreenPriv {
87    /* Wrappable sync-specific screen functions */
88    SyncScreenFuncsRec funcs;
89
90    /* Wrapped screen functions */
91    CloseScreenProcPtr CloseScreen;
92} SyncScreenPrivRec, *SyncScreenPrivPtr;
93
94#endif                          /* _MISYNCSTR_H_ */
95