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 /* Visualization implementation */
18
19 #include "sles_allinclusive.h"
20
21
IVisualization_RegisterVisualizationCallback(SLVisualizationItf self,slVisualizationCallback callback,void * pContext,SLmilliHertz rate)22 static SLresult IVisualization_RegisterVisualizationCallback(SLVisualizationItf self,
23 slVisualizationCallback callback, void *pContext, SLmilliHertz rate)
24 {
25 SL_ENTER_INTERFACE
26
27 if (!(0 < rate && rate <= 20000)) {
28 result = SL_RESULT_PARAMETER_INVALID;
29 } else {
30 IVisualization *thiz = (IVisualization *) self;
31 interface_lock_exclusive(thiz);
32 thiz->mCallback = callback;
33 thiz->mContext = pContext;
34 thiz->mRate = rate;
35 interface_unlock_exclusive(thiz);
36 result = SL_RESULT_SUCCESS;
37 }
38
39 SL_LEAVE_INTERFACE
40 }
41
42
IVisualization_GetMaxRate(SLVisualizationItf self,SLmilliHertz * pRate)43 static SLresult IVisualization_GetMaxRate(SLVisualizationItf self, SLmilliHertz *pRate)
44 {
45 SL_ENTER_INTERFACE
46
47 if (NULL == pRate) {
48 result = SL_RESULT_PARAMETER_INVALID;
49 } else {
50 *pRate = 20000;
51 result = SL_RESULT_SUCCESS;
52 }
53
54 SL_LEAVE_INTERFACE
55 }
56
57
58 static const struct SLVisualizationItf_ IVisualization_Itf = {
59 IVisualization_RegisterVisualizationCallback,
60 IVisualization_GetMaxRate
61 };
62
IVisualization_init(void * self)63 void IVisualization_init(void *self)
64 {
65 IVisualization *thiz = (IVisualization *) self;
66 thiz->mItf = &IVisualization_Itf;
67 thiz->mCallback = NULL;
68 thiz->mContext = NULL;
69 thiz->mRate = 20000;
70 }
71