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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <AudioPolicyManagerInterface.h>
#include <AudioPolicyPluginInterface.h>
#include "Collection.h"
namespace android
{
class AudioPolicyManagerObserver;
namespace audio_policy
{
class ParameterManagerWrapper;
class VolumeProfile;
class Engine
{
public:
Engine();
virtual ~Engine();
template <class RequestedInterface>
RequestedInterface *queryInterface();
private:
/// Interface members
class ManagerInterfaceImpl : public AudioPolicyManagerInterface
{
public:
ManagerInterfaceImpl(Engine *policyEngine)
: mPolicyEngine(policyEngine) {}
virtual android::status_t initCheck()
{
return mPolicyEngine->initCheck();
}
virtual void setObserver(AudioPolicyManagerObserver *observer)
{
mPolicyEngine->setObserver(observer);
}
virtual audio_devices_t getDeviceForInputSource(audio_source_t inputSource) const
{
return mPolicyEngine->getPropertyForKey<audio_devices_t, audio_source_t>(inputSource);
}
virtual audio_devices_t getDeviceForStrategy(routing_strategy stategy) const;
virtual routing_strategy getStrategyForStream(audio_stream_type_t stream)
{
return mPolicyEngine->getPropertyForKey<routing_strategy, audio_stream_type_t>(stream);
}
virtual routing_strategy getStrategyForUsage(audio_usage_t usage);
virtual status_t setPhoneState(audio_mode_t mode)
{
return mPolicyEngine->setPhoneState(mode);
}
virtual audio_mode_t getPhoneState() const
{
return mPolicyEngine->getPhoneState();
}
virtual status_t setForceUse(audio_policy_force_use_t usage,
audio_policy_forced_cfg_t config)
{
return mPolicyEngine->setForceUse(usage, config);
}
virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) const
{
return mPolicyEngine->getForceUse(usage);
}
virtual android::status_t setDeviceConnectionState(const sp<DeviceDescriptor> devDesc,
audio_policy_dev_state_t state)
{
return mPolicyEngine->setDeviceConnectionState(devDesc->type(), state,
devDesc->mAddress);
}
virtual status_t initStreamVolume(audio_stream_type_t stream,
int indexMin, int indexMax)
{
return mPolicyEngine->initStreamVolume(stream, indexMin, indexMax);
}
virtual void initializeVolumeCurves(bool /*isSpeakerDrcEnabled*/) {}
virtual float volIndexToDb(Volume::device_category deviceCategory,
audio_stream_type_t stream,
int indexInUi)
{
return mPolicyEngine->volIndexToDb(deviceCategory, stream, indexInUi);
}
private:
Engine *mPolicyEngine;
} mManagerInterface;
class PluginInterfaceImpl : public AudioPolicyPluginInterface
{
public:
PluginInterfaceImpl(Engine *policyEngine)
: mPolicyEngine(policyEngine) {}
virtual status_t addStrategy(const std::string &name, routing_strategy strategy)
{
return mPolicyEngine->add<routing_strategy>(name, strategy);
}
virtual status_t addStream(const std::string &name, audio_stream_type_t stream)
{
return mPolicyEngine->add<audio_stream_type_t>(name, stream);
}
virtual status_t addUsage(const std::string &name, audio_usage_t usage)
{
return mPolicyEngine->add<audio_usage_t>(name, usage);
}
virtual status_t addInputSource(const std::string &name, audio_source_t source)
{
return mPolicyEngine->add<audio_source_t>(name, source);
}
virtual bool setDeviceForStrategy(const routing_strategy &strategy, audio_devices_t devices)
{
return mPolicyEngine->setPropertyForKey<audio_devices_t, routing_strategy>(devices,
strategy);
}
virtual bool setStrategyForStream(const audio_stream_type_t &stream,
routing_strategy strategy)
{
return mPolicyEngine->setPropertyForKey<routing_strategy, audio_stream_type_t>(strategy,
stream);
}
virtual bool setVolumeProfileForStream(const audio_stream_type_t &stream,
Volume::device_category deviceCategory,
const VolumeCurvePoints &points)
{
return mPolicyEngine->setVolumeProfileForStream(stream, deviceCategory, points);
}
virtual bool setStrategyForUsage(const audio_usage_t &usage, routing_strategy strategy)
{
return mPolicyEngine->setPropertyForKey<routing_strategy, audio_usage_t>(strategy,
usage);
}
virtual bool setDeviceForInputSource(const audio_source_t &inputSource,
audio_devices_t device)
{
return mPolicyEngine->setPropertyForKey<audio_devices_t, audio_source_t>(device,
inputSource);
}
private:
Engine *mPolicyEngine;
} mPluginInterface;
private:
/* Copy facilities are put private to disable copy. */
Engine(const Engine &object);
Engine &operator=(const Engine &object);
void setObserver(AudioPolicyManagerObserver *observer);
bool setVolumeProfileForStream(const audio_stream_type_t &stream,
Volume::device_category deviceCategory,
const VolumeCurvePoints &points);
status_t initCheck();
status_t setPhoneState(audio_mode_t mode);
audio_mode_t getPhoneState() const;
status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) const;
status_t setDeviceConnectionState(audio_devices_t devices, audio_policy_dev_state_t state,
const char *deviceAddress);
float volIndexToDb(Volume::device_category category,
audio_stream_type_t stream,
int indexInUi);
status_t initStreamVolume(audio_stream_type_t stream, int indexMin, int indexMax);
StrategyCollection mStrategyCollection; /**< Strategies indexed by their enum id. */
StreamCollection mStreamCollection; /**< Streams indexed by their enum id. */
UsageCollection mUsageCollection; /**< Usages indexed by their enum id. */
InputSourceCollection mInputSourceCollection; /**< Input sources indexed by their enum id. */
template <typename Key>
status_t add(const std::string &name, const Key &key);
template <typename Key>
Element<Key> *getFromCollection(const Key &key) const;
template <typename Key>
const Collection<Key> &getCollection() const;
template <typename Key>
Collection<Key> &getCollection();
template <typename Property, typename Key>
Property getPropertyForKey(Key key) const;
template <typename Property, typename Key>
bool setPropertyForKey(const Property &property, const Key &key);
/**
* Policy Parameter Manager hidden through a wrapper.
*/
ParameterManagerWrapper *mPolicyParameterMgr;
AudioPolicyManagerObserver *mApmObserver;
};
}; // namespace audio_policy
}; // namespace android
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