I3DCommit.c revision bcc5c7225e3b7a1dbf2e9e830987f69167acf06f 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17/* 3DCommit implementation */
18
19#include "sles_allinclusive.h"
20
21
22static SLresult I3DCommit_Commit(SL3DCommitItf self)
23{
24    SL_ENTER_INTERFACE
25
26    I3DCommit *thiz = (I3DCommit *) self;
27    IObject *thisObject = InterfaceToIObject(thiz);
28    object_lock_exclusive(thisObject);
29    if (thiz->mDeferred) {
30        SLuint32 myGeneration = thiz->mGeneration;
31        do {
32            ++thiz->mWaiting;
33            object_cond_wait(thisObject);
34        } while (thiz->mGeneration == myGeneration);
35    }
36    object_unlock_exclusive(thisObject);
37    result = SL_RESULT_SUCCESS;
38
39    SL_LEAVE_INTERFACE
40}
41
42
43static SLresult I3DCommit_SetDeferred(SL3DCommitItf self, SLboolean deferred)
44{
45    SL_ENTER_INTERFACE
46
47    I3DCommit *thiz = (I3DCommit *) self;
48    IObject *thisObject = InterfaceToIObject(thiz);
49    object_lock_exclusive(thisObject);
50    thiz->mDeferred = SL_BOOLEAN_FALSE != deferred; // normalize
51    object_unlock_exclusive(thisObject);
52    result = SL_RESULT_SUCCESS;
53
54    SL_LEAVE_INTERFACE
55}
56
57
58static const struct SL3DCommitItf_ I3DCommit_Itf = {
59    I3DCommit_Commit,
60    I3DCommit_SetDeferred
61};
62
63void I3DCommit_init(void *self)
64{
65    I3DCommit *thiz = (I3DCommit *) self;
66    thiz->mItf = &I3DCommit_Itf;
67    thiz->mDeferred = SL_BOOLEAN_FALSE;
68    thiz->mGeneration = 0;
69    thiz->mWaiting = 0;
70}
71