Joerg Mueller
174eccf078
* Refactored the whole audaspace library to use float as sample format over all readers. * Added new Readers like the linear resampler, envelope, lowpass, highpass and butterworth. * Note: The butterworth filter isn't working correctly, some bug in there... Maybe also true for the envelope. * Added a sound to f-curve operator that behaves mostly like the soundtracker script of technoestupido.
132 lines
3.2 KiB
C++
132 lines
3.2 KiB
C++
/*
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* $Id$
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*
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* ***** BEGIN LGPL LICENSE BLOCK *****
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*
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* Copyright 2009 Jörg Hermann Müller
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*
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* This file is part of AudaSpace.
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*
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* AudaSpace is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* AudaSpace is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with AudaSpace. If not, see <http://www.gnu.org/licenses/>.
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*
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* ***** END LGPL LICENSE BLOCK *****
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*/
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#ifndef AUD_SOFTWAREDEVICE
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#define AUD_SOFTWAREDEVICE
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#include "AUD_IDevice.h"
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struct AUD_SoftwareHandle;
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class AUD_Mixer;
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#include <list>
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#include <pthread.h>
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/**
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* This device plays is a generic device with software mixing.
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* Classes implementing this have to:
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* - Implement the playing function.
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* - Prepare the m_specs, m_mixer variables.
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* - Call the create and destroy functions.
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* - Call the mix function to retrieve their audio data.
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*/
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class AUD_SoftwareDevice : public AUD_IDevice
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{
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protected:
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/**
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* The specification of the device.
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*/
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AUD_DeviceSpecs m_specs;
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/**
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* The mixer.
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*/
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AUD_Mixer* m_mixer;
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/**
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* Initializes member variables.
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*/
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void create();
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/**
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* Uninitializes member variables.
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*/
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void destroy();
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/**
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* Mixes the next samples into the buffer.
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* \param buffer The target buffer.
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* \param length The length in samples to be filled.
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*/
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void mix(data_t* buffer, int length);
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/**
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* This function tells the device, to start or pause playback.
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* \param playing True if device should playback.
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*/
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virtual void playing(bool playing)=0;
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private:
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/**
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* The list of sounds that are currently playing.
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*/
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std::list<AUD_SoftwareHandle*>* m_playingSounds;
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/**
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* The list of sounds that are currently paused.
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*/
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std::list<AUD_SoftwareHandle*>* m_pausedSounds;
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/**
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* Whether there is currently playback.
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*/
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bool m_playback;
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/**
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* The mutex for locking.
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*/
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pthread_mutex_t m_mutex;
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/**
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* The overall volume of the device.
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*/
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float m_volume;
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/**
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* Checks if a handle is valid.
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* \param handle The handle to check.
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* \return Whether the handle is valid.
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*/
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bool isValid(AUD_Handle* handle);
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public:
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virtual AUD_DeviceSpecs getSpecs();
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virtual AUD_Handle* play(AUD_IFactory* factory, bool keep = false);
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virtual bool pause(AUD_Handle* handle);
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virtual bool resume(AUD_Handle* handle);
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virtual bool stop(AUD_Handle* handle);
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virtual bool setKeep(AUD_Handle* handle, bool keep);
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virtual bool sendMessage(AUD_Handle* handle, AUD_Message &message);
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virtual bool seek(AUD_Handle* handle, float position);
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virtual float getPosition(AUD_Handle* handle);
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virtual AUD_Status getStatus(AUD_Handle* handle);
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virtual void lock();
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virtual void unlock();
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virtual bool checkCapability(int capability);
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virtual bool setCapability(int capability, void *value);
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virtual bool getCapability(int capability, void *value);
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};
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#endif //AUD_SOFTWAREDEVICE
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