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 /* MetadataTraversal implementation */
18
19 #include "sles_allinclusive.h"
20
21
IMetadataTraversal_SetMode(SLMetadataTraversalItf self,SLuint32 mode)22 static SLresult IMetadataTraversal_SetMode(SLMetadataTraversalItf self, SLuint32 mode)
23 {
24 SL_ENTER_INTERFACE
25
26 switch (mode) {
27 case SL_METADATATRAVERSALMODE_ALL:
28 case SL_METADATATRAVERSALMODE_NODE:
29 {
30 IMetadataTraversal *thiz = (IMetadataTraversal *) self;
31 interface_lock_poke(thiz);
32 thiz->mMode = mode;
33 interface_unlock_poke(thiz);
34 result = SL_RESULT_SUCCESS;
35 }
36 break;
37 default:
38 result = SL_RESULT_PARAMETER_INVALID;
39 break;
40 }
41
42 SL_LEAVE_INTERFACE
43 }
44
45
IMetadataTraversal_GetChildCount(SLMetadataTraversalItf self,SLuint32 * pCount)46 static SLresult IMetadataTraversal_GetChildCount(SLMetadataTraversalItf self, SLuint32 *pCount)
47 {
48 SL_ENTER_INTERFACE
49
50 if (NULL == pCount) {
51 result = SL_RESULT_PARAMETER_INVALID;
52 } else {
53 IMetadataTraversal *thiz = (IMetadataTraversal *) self;
54 interface_lock_peek(thiz);
55 SLuint32 count = thiz->mCount;
56 interface_unlock_peek(thiz);
57 *pCount = count;
58 result = SL_RESULT_SUCCESS;
59 }
60
61 SL_LEAVE_INTERFACE
62 }
63
64
IMetadataTraversal_GetChildMIMETypeSize(SLMetadataTraversalItf self,SLuint32 index,SLuint32 * pSize)65 static SLresult IMetadataTraversal_GetChildMIMETypeSize(
66 SLMetadataTraversalItf self, SLuint32 index, SLuint32 *pSize)
67 {
68 SL_ENTER_INTERFACE
69
70 if (NULL == pSize) {
71 result = SL_RESULT_PARAMETER_INVALID;
72 } else {
73 IMetadataTraversal *thiz = (IMetadataTraversal *) self;
74 interface_lock_peek(thiz);
75 SLuint32 size = thiz->mSize;
76 interface_unlock_peek(thiz);
77 *pSize = size;
78 result = SL_RESULT_SUCCESS;
79 }
80
81 SL_LEAVE_INTERFACE
82 }
83
84
IMetadataTraversal_GetChildInfo(SLMetadataTraversalItf self,SLuint32 index,SLint32 * pNodeID,SLuint32 * pType,SLuint32 size,SLchar * pMimeType)85 static SLresult IMetadataTraversal_GetChildInfo(SLMetadataTraversalItf self, SLuint32 index,
86 SLint32 *pNodeID, SLuint32 *pType, SLuint32 size, SLchar *pMimeType)
87 {
88 SL_ENTER_INTERFACE
89
90 //IMetadataTraversal *thiz = (IMetadataTraversal *) self;
91 result = SL_RESULT_FEATURE_UNSUPPORTED;
92
93 SL_LEAVE_INTERFACE
94 }
95
96
IMetadataTraversal_SetActiveNode(SLMetadataTraversalItf self,SLuint32 index)97 static SLresult IMetadataTraversal_SetActiveNode(SLMetadataTraversalItf self, SLuint32 index)
98 {
99 SL_ENTER_INTERFACE
100
101 if (SL_NODE_PARENT == index) {
102 ;
103 }
104 IMetadataTraversal *thiz = (IMetadataTraversal *) self;
105 thiz->mIndex = index;
106 result = SL_RESULT_PARAMETER_INVALID;
107
108 SL_LEAVE_INTERFACE
109 }
110
111
112 static const struct SLMetadataTraversalItf_ IMetadataTraversal_Itf = {
113 IMetadataTraversal_SetMode,
114 IMetadataTraversal_GetChildCount,
115 IMetadataTraversal_GetChildMIMETypeSize,
116 IMetadataTraversal_GetChildInfo,
117 IMetadataTraversal_SetActiveNode
118 };
119
IMetadataTraversal_init(void * self)120 void IMetadataTraversal_init(void *self)
121 {
122 IMetadataTraversal *thiz = (IMetadataTraversal *) self;
123 thiz->mItf = &IMetadataTraversal_Itf;
124 thiz->mIndex = 0;
125 thiz->mMode = SL_METADATATRAVERSALMODE_NODE;
126 thiz->mCount = 0;
127 thiz->mSize = 0;
128 }
129