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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* 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
/**
* @file NULLDevice.h
* @ingroup devices
* The NULLDevice class.
*/
#include "devices/IDevice.h"
#include "devices/IHandle.h"
AUD_NAMESPACE_BEGIN
class IReader;
/**
* This device plays nothing.
* It is similar to the linux device /dev/null.
*/
class AUD_API NULLDevice : public IDevice
{
private:
class AUD_LOCAL NULLHandle : public IHandle
{
private:
// delete copy constructor and operator=
NULLHandle(const NULLHandle&) = delete;
NULLHandle& operator=(const NULLHandle&) = delete;
public:
NULLHandle();
virtual ~NULLHandle() {}
virtual bool pause();
virtual bool resume();
virtual bool stop();
virtual bool getKeep();
virtual bool setKeep(bool keep);
virtual bool seek(float position);
virtual float getPosition();
virtual Status getStatus();
virtual float getVolume();
virtual bool setVolume(float volume);
virtual float getPitch();
virtual bool setPitch(float pitch);
virtual int getLoopCount();
virtual bool setLoopCount(int count);
virtual bool setStopCallback(stopCallback callback = 0, void* data = 0);
};
// delete copy constructor and operator=
NULLDevice(const NULLDevice&) = delete;
NULLDevice& operator=(const NULLDevice&) = delete;
public:
/**
* Creates a new NULLDevice.
*/
NULLDevice();
virtual ~NULLDevice();
virtual DeviceSpecs getSpecs() const;
virtual std::shared_ptr<IHandle> play(std::shared_ptr<IReader> reader, bool keep = false);
virtual std::shared_ptr<IHandle> play(std::shared_ptr<ISound> sound, bool keep = false);
virtual void stopAll();
virtual void lock();
virtual void unlock();
virtual float getVolume() const;
virtual void setVolume(float volume);
virtual ISynchronizer* getSynchronizer();
/**
* Registers this plugin.
*/
static void registerPlugin();
};
AUD_NAMESPACE_END
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