1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include "xf86.h"
#include "driver.h"
#include "misyncshm.h"
#include "misyncstr.h"
#ifdef GLAMOR
#define GLAMOR_FOR_XORG 1
#include "glamor.h"
#endif
/*
* This whole file exists to wrap a sync fence trigger operation
* so that we can flush the batch buffer to provide serialization
* between the server and the shm fence client
*/
static DevPrivateKeyRec ms_sync_fence_private_key;
typedef struct _ms_sync_fence_private {
SyncFenceSetTriggeredFunc set_triggered;
} ms_sync_fence_private;
#define SYNC_FENCE_PRIV(pFence) \
(ms_sync_fence_private *) dixLookupPrivate(&pFence->devPrivates, &ms_sync_fence_private_key)
static void
ms_sync_fence_set_triggered (SyncFence *fence)
{
ScreenPtr screen = fence->pScreen;
ms_sync_fence_private *private = SYNC_FENCE_PRIV(fence);
/* Flush pending rendering operations
*
* The assumption here is that after glamor's flush, any further
* commands to the same buffers will be synchronized after the
* flush.
*/
#ifdef GLAMOR
glamor_block_handler(screen);
#endif
fence->funcs.SetTriggered = private->set_triggered;
(*fence->funcs.SetTriggered)(fence);
private->set_triggered = fence->funcs.SetTriggered;
fence->funcs.SetTriggered = ms_sync_fence_set_triggered;
}
static void
ms_sync_create_fence(ScreenPtr screen,
SyncFence *fence,
Bool initially_triggered)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
modesettingPtr ms = modesettingPTR(scrn);
SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen);
ms_sync_fence_private *private = SYNC_FENCE_PRIV(fence);
screen_funcs->CreateFence = ms->save_sync_screen_funcs.CreateFence;
(*screen_funcs->CreateFence)(screen, fence, initially_triggered);
ms->save_sync_screen_funcs.CreateFence = screen_funcs->CreateFence;
screen_funcs->CreateFence = ms_sync_create_fence;
private->set_triggered = fence->funcs.SetTriggered;
fence->funcs.SetTriggered = ms_sync_fence_set_triggered;
}
Bool
ms_sync_screen_init(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
modesettingPtr ms = modesettingPTR(scrn);
SyncScreenFuncsPtr screen_funcs;
if (!miSyncShmScreenInit(screen))
return FALSE;
if (!dixPrivateKeyRegistered(&ms_sync_fence_private_key)) {
if (!dixRegisterPrivateKey(&ms_sync_fence_private_key,
PRIVATE_SYNC_FENCE,
sizeof (ms_sync_fence_private)))
return FALSE;
}
screen_funcs = miSyncGetScreenFuncs(screen);
ms->save_sync_screen_funcs.CreateFence = screen_funcs->CreateFence;
screen_funcs->CreateFence = ms_sync_create_fence;
return TRUE;
}
void
ms_sync_close_screen(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
modesettingPtr ms = modesettingPTR(scrn);
SyncScreenFuncsPtr screen_funcs = miSyncGetScreenFuncs(screen);
if (screen_funcs)
screen_funcs->CreateFence = ms->save_sync_screen_funcs.CreateFence;
}
|
