mirror of
https://github.com/love2d/love.git
synced 2026-08-12 08:30:56 +02:00
Alex Szpakowski
172 lines
4.4 KiB
C++
172 lines
4.4 KiB
C++
/**
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* Copyright (c) 2006-2013 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_SOURCE_H
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#define LOVE_AUDIO_OPENAL_SOURCE_H
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// LOVE
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#include "common/config.h"
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#include "common/Object.h"
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#include "audio/Source.h"
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#include "sound/SoundData.h"
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#include "sound/Decoder.h"
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// OpenAL
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#ifdef LOVE_MACOSX
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#include <OpenAL-Soft/alc.h>
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#include <OpenAL-Soft/al.h>
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#else
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#include <AL/alc.h>
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#include <AL/al.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 Audio;
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class Pool;
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class Source : public love::audio::Source
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{
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public:
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Source(Pool *pool, love::sound::SoundData *soundData);
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Source(Pool *pool, love::sound::Decoder *decoder);
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virtual ~Source();
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virtual love::audio::Source *copy();
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virtual void play();
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virtual void stop();
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virtual void pause();
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virtual void resume();
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virtual void rewind();
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virtual bool isStopped() const;
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virtual bool isPaused() const;
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virtual bool isFinished() const;
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virtual bool update();
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virtual void setPitch(float pitch);
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virtual float getPitch() const;
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virtual void setVolume(float volume);
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virtual float getVolume() const;
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virtual void seekAtomic(float offset, void *unit);
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virtual void seek(float offset, Unit unit);
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virtual float tellAtomic(void *unit) const;
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virtual float tell(Unit unit);
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virtual void setPosition(float *v);
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virtual void getPosition(float *v) const;
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virtual void setVelocity(float *v);
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virtual void getVelocity(float *v) const;
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virtual void setDirection(float *v);
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virtual void getDirection(float *v) const;
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virtual void setCone(float innerAngle, float outerAngle, float outerVolume);
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virtual void getCone(float &innerAngle, float &outerAngle, float &outerVolume) const;
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virtual void setRelativePosition(bool relative);
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virtual bool hasRelativePosition() const;
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void setLooping(bool looping);
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bool isLooping() const;
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bool isStatic() const;
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virtual void setMinVolume(float volume);
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virtual float getMinVolume() const;
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virtual void setMaxVolume(float volume);
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virtual float getMaxVolume() const;
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virtual void setReferenceDistance(float distance);
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virtual float getReferenceDistance() const;
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virtual void setRolloffFactor(float factor);
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virtual float getRolloffFactor() const;
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virtual void setMaxDistance(float distance);
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virtual float getMaxDistance() const;
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virtual int getChannels() const;
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void playAtomic();
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void stopAtomic();
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void pauseAtomic();
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void resumeAtomic();
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void rewindAtomic();
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private:
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void reset();
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void setFloatv(float *dst, const float *src) const;
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/**
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* Gets the OpenAL format identifier based on number of
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* channels and bits.
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* @param channels Either 1 (mono) or 2 (stereo).
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* @param bitDepth Either 8-bit samples, or 16-bit samples.
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* @return One of AL_FORMAT_*, or 0 if unsupported format.
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**/
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ALenum getFormat(int channels, int bitDepth) const;
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int streamAtomic(ALuint buffer, love::sound::Decoder *d);
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Pool *pool;
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ALuint source;
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bool valid;
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static const unsigned int MAX_BUFFERS = 32;
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ALuint buffers[MAX_BUFFERS];
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float pitch;
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float volume;
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float position[3];
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float velocity[3];
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float direction[3];
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bool relativePosition;
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bool looping;
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bool paused;
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float minVolume;
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float maxVolume;
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float referenceDistance;
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float rolloffFactor;
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float maxDistance;
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struct Cone
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{
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int innerAngle; // degrees
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int outerAngle; // degrees
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float outerVolume;
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Cone()
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: innerAngle(360)
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, outerAngle(360)
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, outerVolume(0.0f)
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{}
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} cone;
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float offsetSamples;
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float offsetSeconds;
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int channels;
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love::sound::Decoder *decoder;
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unsigned int toLoop;
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}; // Source
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} // openal
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} // audio
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} // love
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#endif // LOVE_AUDIO_OPENAL_SOURCE_H
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