1 /*
2 * Copyright (c) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <common.h>
17
slCreateEngine(SLObjectItf * pEngine,SLuint32 numOptions,const SLEngineOption * pEngineOptions,SLuint32 numInterfaces,const SLInterfaceID * pInterfaceIds,const SLboolean * pInterfaceRequired)18 SLresult SLAPIENTRY slCreateEngine(SLObjectItf *pEngine, SLuint32 numOptions,
19 const SLEngineOption *pEngineOptions, SLuint32 numInterfaces,
20 const SLInterfaceID *pInterfaceIds, const SLboolean *pInterfaceRequired)
21 {
22 if (pEngine == nullptr) {
23 return SL_RESULT_PARAMETER_INVALID;
24 }
25 ClassTable *engineClass = ObjectIdToClass(SL_OBJECTID_ENGINE);
26 CEngine *thiz = (CEngine *) Construct(engineClass, nullptr);
27 if (thiz == nullptr) {
28 return SL_RESULT_PARAMETER_INVALID;
29 }
30 IObjectInit(&thiz->mObject);
31 IEngineInit(&thiz->mEngine);
32 *pEngine = &thiz->mObject.mItf;
33 return SL_RESULT_SUCCESS;
34 }
35
ObjectIdToClass(SLuint32 objectId)36 ClassTable *ObjectIdToClass(SLuint32 objectId)
37 {
38 ClassTable *classTable = nullptr;
39 if (objectId == SL_OBJECTID_ENGINE) {
40 classTable = (ClassTable *) &EngineTab;
41 } else if (objectId == SL_OBJECTID_AUDIOPLAYER) {
42 classTable = (ClassTable *) &AudioPlayerTab;
43 } else if (objectId == SL_OBJECTID_AUDIORECORDER) {
44 classTable = (ClassTable *) &AudioRecorderTab;
45 } else if (objectId == SL_OBJECTID_OUTPUTMIX) {
46 classTable = (ClassTable *) &OutputMixTab;
47 }
48 return classTable;
49 }
50
Construct(const ClassTable * classTable,SLEngineItf engine)51 IObject *Construct(const ClassTable *classTable, SLEngineItf engine)
52 {
53 if (classTable == nullptr) {
54 return nullptr;
55 }
56 IObject *thiz = (IObject *) calloc(1, classTable->mSize);
57 if (thiz != nullptr) {
58 IEngine *thisEngine = (IEngine *) engine;
59 if (thisEngine != nullptr) {
60 thiz->mEngine = (CEngine *) thisEngine->mThis;
61 } else {
62 thiz->mEngine = (CEngine *) thiz;
63 }
64 thiz->mClass = classTable;
65 }
66 return thiz;
67 }
68