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/simple_mtx.h"
29 #include "util/u_handle_table.h"
30 #include "util/u_thread.h"
31 #include "vdpau_private.h"
32
33 static struct handle_table *htab = NULL;
34 static simple_mtx_t htab_lock = SIMPLE_MTX_INITIALIZER;
35
vlCreateHTAB(void)36 bool vlCreateHTAB(void)
37 {
38 bool ret;
39
40 /* Make sure handle table handles match VDPAU handles. */
41 assert(sizeof(unsigned) <= sizeof(vlHandle));
42 simple_mtx_lock(&htab_lock);
43 if (!htab)
44 htab = handle_table_create();
45 ret = htab != NULL;
46 simple_mtx_unlock(&htab_lock);
47 return ret;
48 }
49
vlDestroyHTAB(void)50 void vlDestroyHTAB(void)
51 {
52 simple_mtx_lock(&htab_lock);
53 if (htab && !handle_table_get_first_handle(htab)) {
54 handle_table_destroy(htab);
55 htab = NULL;
56 }
57 simple_mtx_unlock(&htab_lock);
58 }
59
vlAddDataHTAB(void * data)60 vlHandle vlAddDataHTAB(void *data)
61 {
62 vlHandle handle = 0;
63
64 assert(data);
65 simple_mtx_lock(&htab_lock);
66 if (htab)
67 handle = handle_table_add(htab, data);
68 simple_mtx_unlock(&htab_lock);
69 return handle;
70 }
71
vlGetDataHTAB(vlHandle handle)72 void* vlGetDataHTAB(vlHandle handle)
73 {
74 void *data = NULL;
75
76 assert(handle);
77 simple_mtx_lock(&htab_lock);
78 if (htab)
79 data = handle_table_get(htab, handle);
80 simple_mtx_unlock(&htab_lock);
81 return data;
82 }
83
vlRemoveDataHTAB(vlHandle handle)84 void vlRemoveDataHTAB(vlHandle handle)
85 {
86 simple_mtx_lock(&htab_lock);
87 if (htab)
88 handle_table_remove(htab, handle);
89 simple_mtx_unlock(&htab_lock);
90 }
91