1 /**************************************************************************
2 *
3 * Copyright 2010 Younes Manton.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "util/u_handle_table.h"
29 #include "os/os_thread.h"
30 #include "vdpau_private.h"
31
32 static struct handle_table *htab = NULL;
33 static mtx_t htab_lock = _MTX_INITIALIZER_NP;
34
vlCreateHTAB(void)35 boolean vlCreateHTAB(void)
36 {
37 boolean ret;
38
39 /* Make sure handle table handles match VDPAU handles. */
40 assert(sizeof(unsigned) <= sizeof(vlHandle));
41 mtx_lock(&htab_lock);
42 if (!htab)
43 htab = handle_table_create();
44 ret = htab != NULL;
45 mtx_unlock(&htab_lock);
46 return ret;
47 }
48
vlDestroyHTAB(void)49 void vlDestroyHTAB(void)
50 {
51 mtx_lock(&htab_lock);
52 if (htab && !handle_table_get_first_handle(htab)) {
53 handle_table_destroy(htab);
54 htab = NULL;
55 }
56 mtx_unlock(&htab_lock);
57 }
58
vlAddDataHTAB(void * data)59 vlHandle vlAddDataHTAB(void *data)
60 {
61 vlHandle handle = 0;
62
63 assert(data);
64 mtx_lock(&htab_lock);
65 if (htab)
66 handle = handle_table_add(htab, data);
67 mtx_unlock(&htab_lock);
68 return handle;
69 }
70
vlGetDataHTAB(vlHandle handle)71 void* vlGetDataHTAB(vlHandle handle)
72 {
73 void *data = NULL;
74
75 assert(handle);
76 mtx_lock(&htab_lock);
77 if (htab)
78 data = handle_table_get(htab, handle);
79 mtx_unlock(&htab_lock);
80 return data;
81 }
82
vlRemoveDataHTAB(vlHandle handle)83 void vlRemoveDataHTAB(vlHandle handle)
84 {
85 mtx_lock(&htab_lock);
86 if (htab)
87 handle_table_remove(htab, handle);
88 mtx_unlock(&htab_lock);
89 }
90