forked from bartvdbraak/blender
172 lines
4.4 KiB
C++
172 lines
4.4 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_OPENALDEVICE
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#define AUD_OPENALDEVICE
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#include "AUD_IDevice.h"
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#include "AUD_I3DDevice.h"
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struct AUD_OpenALHandle;
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struct AUD_OpenALBufferedFactory;
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class AUD_ConverterFactory;
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#include <AL/al.h>
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#include <AL/alc.h>
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#include <list>
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#include <pthread.h>
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/**
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* This device plays through OpenAL.
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*/
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class AUD_OpenALDevice : public AUD_IDevice, public AUD_I3DDevice
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{
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private:
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/**
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* The OpenAL device handle.
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*/
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ALCdevice* m_device;
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/**
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* The OpenAL context.
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*/
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ALCcontext* m_context;
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/**
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* The specification of the device.
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*/
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AUD_Specs m_specs;
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/**
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* Whether the device has the AL_EXT_MCFORMATS extension.
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*/
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bool m_useMC;
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/**
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* The converter factory for readers with wrong input format.
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*/
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AUD_ConverterFactory* m_converter;
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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_OpenALHandle*>* 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_OpenALHandle*>* m_pausedSounds;
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/**
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* The list of buffered factories.
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*/
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std::list<AUD_OpenALBufferedFactory*>* m_bufferedFactories;
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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 streaming thread.
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*/
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pthread_t m_thread;
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/**
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* The condition for streaming thread wakeup.
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*/
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bool m_playing;
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/**
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* Buffer size.
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*/
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int m_buffersize;
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/**
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* Starts the streaming thread.
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*/
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void start();
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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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/**
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* Gets the format according to the specs.
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* \param format The variable to put the format into.
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* \param specs The specs to read the format from.
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* \return Whether the format is valid or not.
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*/
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bool getFormat(ALenum &format, AUD_Specs specs);
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public:
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/**
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* Opens the OpenAL audio device for playback.
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* \param specs The wanted audio specification.
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* \param buffersize The size of the internal buffer.
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* \note The specification really used for opening the device may differ.
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* \note The buffersize will be multiplicated by three for this device.
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* \exception AUD_Exception Thrown if the audio device cannot be opened.
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*/
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AUD_OpenALDevice(AUD_Specs specs, int buffersize = AUD_DEFAULT_BUFFER_SIZE);
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/**
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* Streaming thread main function.
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*/
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void updateStreams();
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virtual ~AUD_OpenALDevice();
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virtual AUD_Specs 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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virtual AUD_Handle* play3D(AUD_IFactory* factory, bool keep = false);
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virtual bool updateListener(AUD_3DData &data);
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virtual bool setSetting(AUD_3DSetting setting, float value);
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virtual float getSetting(AUD_3DSetting setting);
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virtual bool updateSource(AUD_Handle* handle, AUD_3DData &data);
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virtual bool setSourceSetting(AUD_Handle* handle,
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AUD_3DSourceSetting setting, float value);
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virtual float getSourceSetting(AUD_Handle* handle,
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AUD_3DSourceSetting setting);
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};
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#endif //AUD_OPENALDEVICE
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