misyncstr.h revision 35c4bbdf 
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 "dix.h"
32#include "misync.h"
33#include "scrnintstr.h"
34#include <X11/extensions/syncconst.h>
35
36#define CARD64 XSyncValue       /* XXX temporary! need real 64 bit values for Alpha */
37
38/* Sync object types */
39#define SYNC_COUNTER		0
40#define SYNC_FENCE		1
41
42typedef struct _SyncObject {
43    ClientPtr client;           /* Owning client. 0 for system counters */
44    struct _SyncTriggerList *pTriglist; /* list of triggers */
45    XID id;                     /* resource ID */
46    unsigned char type;         /* SYNC_* */
47    Bool beingDestroyed;        /* in process of going away */
48} SyncObject;
49
50typedef struct _SyncCounter {
51    SyncObject sync;            /* Common sync object data */
52    CARD64 value;               /* counter value */
53    struct _SysCounterInfo *pSysCounterInfo;    /* NULL if not a system counter */
54} SyncCounter;
55
56struct _SyncFence {
57    SyncObject sync;            /* Common sync object data */
58    ScreenPtr pScreen;          /* Screen of this fence object */
59    SyncFenceFuncsRec funcs;    /* Funcs for performing ops on fence */
60    Bool triggered;             /* fence state */
61    PrivateRec *devPrivates;    /* driver-specific per-fence data */
62};
63
64struct _SyncTrigger {
65    SyncObject *pSync;
66    CARD64 wait_value;          /* wait value */
67    unsigned int value_type;    /* Absolute or Relative */
68    unsigned int test_type;     /* transition or Comparision type */
69    CARD64 test_value;          /* trigger event threshold value */
70    Bool (*CheckTrigger) (struct _SyncTrigger * /*pTrigger */ ,
71                          CARD64        /*newval */
72        );
73    void (*TriggerFired) (struct _SyncTrigger * /*pTrigger */
74        );
75    void (*CounterDestroyed) (struct _SyncTrigger *     /*pTrigger */
76        );
77};
78
79typedef struct _SyncTriggerList {
80    SyncTrigger *pTrigger;
81    struct _SyncTriggerList *next;
82} SyncTriggerList;
83
84extern DevPrivateKeyRec miSyncScreenPrivateKey;
85
86#define SYNC_SCREEN_PRIV(pScreen) 				\
87    (SyncScreenPrivPtr) dixLookupPrivate(&pScreen->devPrivates,	\
88					 &miSyncScreenPrivateKey)
89
90typedef struct _syncScreenPriv {
91    /* Wrappable sync-specific screen functions */
92    SyncScreenFuncsRec funcs;
93
94    /* Wrapped screen functions */
95    CloseScreenProcPtr CloseScreen;
96} SyncScreenPrivRec, *SyncScreenPrivPtr;
97
98#endif                          /* _MISYNCSTR_H_ */
99