mirror of
https://github.com/love2d/love.git
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John Doe
133 lines
3.0 KiB
C++
133 lines
3.0 KiB
C++
/**
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* Copyright (c) 2006-2025 LOVE Development Team
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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**/
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#ifndef LOVE_AUDIO_OPENAL_POOL_H
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#define LOVE_AUDIO_OPENAL_POOL_H
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// STD
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#include <queue>
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#include <map>
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#include <vector>
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#include <cmath>
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// LOVE
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#include "common/config.h"
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#include "common/Exception.h"
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#include "thread/threads.h"
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#include "audio/Source.h"
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// OpenAL
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#ifdef LOVE_APPLE_USE_FRAMEWORKS
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#ifdef LOVE_IOS
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#include <OpenAL/alc.h>
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#include <OpenAL/al.h>
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#include <OpenAL/oalMacOSX_OALExtensions.h>
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#include <OpenAL/oalStaticBufferExtension.h>
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#else
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#include <OpenAL-Soft/alc.h>
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#include <OpenAL-Soft/al.h>
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#include <OpenAL-Soft/alext.h>
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#endif
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#else
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#include <alc.h>
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#include <al.h>
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#include <alext.h>
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#endif
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namespace love
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{
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namespace audio
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{
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namespace openal
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{
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class Source;
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class Pool
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{
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public:
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Pool(ALCdevice *device);
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~Pool();
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/**
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* Checks whether an OpenAL source is available.
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* @return True if at least one is available, false otherwise.
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**/
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bool isAvailable() const;
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/**
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* Checks whether a Source is currently in the playing list.
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**/
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bool isPlaying(Source *s);
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void update();
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int getActiveSourceCount() const;
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int getMaxSources() const;
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private:
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friend class Source;
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LOVE_WARN_UNUSED thread::Lock lock();
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std::vector<love::audio::Source*> getPlayingSources();
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/**
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* Makes the specified OpenAL source available for use.
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* @param source The OpenAL source.
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**/
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bool releaseSource(Source *source, bool stop = true);
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bool assignSource(Source *source, ALuint &out, char &wasPlaying);
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bool findSource(Source *source, ALuint &out);
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// Maximum possible number of OpenAL sources the pool attempts to generate.
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static const int MAX_SOURCES = 64;
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// Current OpenAL device
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ALCdevice *device;
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// OpenAL sources
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ALuint sources[MAX_SOURCES];
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// Is device disconnection has been notified?
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bool disconnectNotified;
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// Total number of created sources in the pool.
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int totalSources;
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// A queue of available sources.
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std::queue<ALuint> available;
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// A map of playing sources.
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std::map<Source *, ALuint> playing;
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// Only one thread can access this object at the same time. This mutex will
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// make sure of that.
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love::thread::MutexRef mutex;
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}; // Pool
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} // openal
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} // audio
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} // love
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#endif // LOVE_AUDIO_OPENAL_POOL_H
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