1 /*
2  * Copyright (C) 2015 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 #include <EngineInterface.h>
18 #include <AudioPolicyPluginInterface.h>
19 #include "AudioPolicyEngineInstance.h"
20 #include "Engine.h"
21 
22 using std::string;
23 
24 namespace android {
25 namespace audio_policy {
26 
EngineInstance()27 EngineInstance::EngineInstance()
28 {
29 }
30 
getInstance()31 EngineInstance *EngineInstance::getInstance()
32 {
33     static EngineInstance instance;
34     return &instance;
35 }
36 
~EngineInstance()37 EngineInstance::~EngineInstance()
38 {
39 }
40 
getEngine() const41 Engine *EngineInstance::getEngine() const
42 {
43     static Engine engine;
44     return &engine;
45 }
46 
47 template <>
queryInterface() const48 EngineInterface *EngineInstance::queryInterface() const
49 {
50     return getEngine()->queryInterface<EngineInterface>();
51 }
52 
53 template <>
queryInterface() const54 AudioPolicyPluginInterface *EngineInstance::queryInterface() const
55 {
56     return getEngine()->queryInterface<AudioPolicyPluginInterface>();
57 }
58 
59 } // namespace audio_policy
60 
createEngineInstance()61 extern "C" EngineInterface* createEngineInstance()
62 {
63     return audio_policy::EngineInstance::getInstance()->queryInterface<EngineInterface>();
64 }
65 
destroyEngineInstance(EngineInterface *)66 extern "C" void destroyEngineInstance(EngineInterface*)
67 {
68     // The engine is a singleton.
69 }
70 
71 } // namespace android
72 
73