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 IObjectInit(&thiz->mObject);
28 IEngineInit(&thiz->mEngine);
29 *pEngine = &thiz->mObject.mItf;
30 return SL_RESULT_SUCCESS;
31 }
32
ObjectIdToClass(SLuint32 objectId)33 ClassTable *ObjectIdToClass(SLuint32 objectId)
34 {
35 ClassTable *classTable = nullptr;
36 if (objectId == SL_OBJECTID_ENGINE) {
37 classTable = (ClassTable *) &EngineTab;
38 } else if (objectId == SL_OBJECTID_AUDIOPLAYER) {
39 classTable = (ClassTable *) &AudioPlayerTab;
40 } else if (objectId == SL_OBJECTID_OUTPUTMIX) {
41 classTable = (ClassTable *) &OutputMixTab;
42 }
43 return classTable;
44 }
45
Construct(const ClassTable * classTable,SLEngineItf engine)46 IObject *Construct(const ClassTable *classTable, SLEngineItf engine)
47 {
48 IObject *thiz = (IObject *) calloc(1, classTable->mSize);
49 if (thiz != nullptr) {
50 IEngine *thisEngine = (IEngine *) engine;
51 if (thisEngine != nullptr) {
52 thiz->mEngine = (CEngine *) thisEngine->mThis;
53 } else {
54 thiz->mEngine = (CEngine *) thiz;
55 }
56 thiz->mClass = classTable;
57 }
58 return thiz;
59 }
60