cAudio  2.3.0
3d Audio Engine
cAudioSource.h
1 // Copyright (c) 2008-2011 Raynaldo (Wildicv) Rivera, Joshua (Dark_Kilauea) Jones, Murat (wolfmanfx) Sari
2 // This file is part of the "cAudio Engine"
3 // For conditions of distribution and use, see copyright notice in cAudio.h
4 
5 #pragma once
6 
7 #include <list>
8 #include <string>
9 #include <vector>
10 
11 #include "cOpenALUtil.h"
12 #include "cMutex.h"
13 #include "cEFXFunctions.h"
14 #include "cMemoryOverride.h"
15 #include "IAudioSource.h"
16 #include "cVector3.h"
17 #include "ILogger.h"
18 #include "cSTLAllocator.h"
19 #include "IAudioDeviceContext.h"
20 
21 namespace cAudio
22 {
23 
25  {
26  public:
27 
28  enum Events{
29  ON_UPDATE,
30  ON_RELEASE,
31  ON_PLAY,
32  ON_PAUSE,
33  ON_STOP,
34  };
35 
37  virtual ~cAudioSourceBase();
38 
39  virtual bool isPlaying() const;
40  virtual bool isPaused() const;
41  virtual bool isStopped() const;
42 
43  virtual void setPosition(const cVector3& position);
44  virtual void setVelocity(const cVector3& velocity);
45  virtual void setDirection(const cVector3& direction);
46 
47  virtual void setRolloffFactor(const float& rolloff);
48  virtual void setStrength(const float& soundstrength);
49  virtual void setMinDistance(const float& minDistance);
50  virtual void setMaxAttenuationDistance(const float& maxDistance);
51 
52  virtual void setPitch(const float& pitch);
53  virtual void setVolume(const float& volume);
54  virtual void setMinVolume(const float& minVolume);
55  virtual void setMaxVolume(const float& maxVolume);
56 
57  virtual void setInnerConeAngle(const float& innerAngle);
58  virtual void setOuterConeAngle(const float& outerAngle);
59  virtual void setOuterConeVolume(const float& outerVolume);
60 
61  virtual void setDopplerStrength(const float& dstrength);
62  virtual void setDopplerVelocity(const cVector3& dvelocity);
63 
64  virtual void move(const cVector3& position);
65 
66  virtual cVector3 getPosition() const;
67  virtual cVector3 getVelocity() const;
68  virtual cVector3 getDirection() const;
69 
70  virtual float getRolloffFactor() const;
71  virtual float getStrength() const;
72  virtual float getMinDistance() const;
73  virtual float getMaxDistance() const;
74 
75  virtual bool isRelative() const;
76  virtual float calculateGain() const;
77 
78  virtual float getPitch() const;
79  virtual float getVolume() const;
80  virtual float getMinVolume() const;
81  virtual float getMaxVolume() const;
82 
83  virtual float getInnerConeAngle() const;
84  virtual float getOuterConeAngle() const;
85  virtual float getOuterConeVolume() const;
86 
87  virtual float getDopplerStrength() const;
88  virtual cVector3 getDopplerVelocity() const;
89 
90  virtual void registerEventHandler(ISourceEventHandler* handler);
91  virtual void unRegisterEventHandler(ISourceEventHandler* handler);
92  virtual void unRegisterAllEventHandlers();
93 
94  protected:
97 
99  void signalEvent(Events sevent);
100 
103 
105  float Volume;
106 
108  ALuint Source;
109 
110  ALenum oldState;
111 
113  cAudioVector<ISourceEventHandler*>::Type eventHandlerList;
114  };
115 
117  public:
118 #if CAUDIO_EFX_ENABLED == 1
119  cAudioSource(IAudioDecoder* decoder, IAudioDeviceContext* context, cEFXFunctions* oALFunctions);
120 #else
121  cAudioSource(IAudioDecoder* decoder, IAudioDeviceContext* context);
122 #endif
123  ~cAudioSource();
124 
125  virtual bool play();
126  virtual bool play2d(const bool& toLoop = false);
127  virtual bool play3d(const cVector3& position, const float& soundstr = 1.0 , const bool& toLoop = false);
128 
129  virtual void pause();
130  virtual void stop();
131  virtual void loop(const bool& toLoop);
132  virtual bool seek(const float& seconds, bool relative = false);
133 
134  virtual bool setBuffer(IAudioBuffer* buffer) { return false; }
135  virtual IAudioBuffer *getBuffer() { return NULL; }
136 
137  virtual float getTotalAudioTime();
138  virtual int getTotalAudioSize();
139  virtual int getCompressedAudioSize();
140 
141  virtual float getCurrentAudioTime();
142  virtual int getCurrentAudioPosition();
143  virtual int getCurrentCompressedAudioPosition();
144 
145  virtual bool update();
146 
147  virtual bool isValid() const;
148  virtual bool isLooping() const;
149 
150  virtual bool drop();
151 
152 #if CAUDIO_EFX_ENABLED == 1
153  virtual unsigned int getNumEffectSlotsAvailable() const;
154  virtual bool attachEffect(unsigned int slot, IEffect* effect);
155  virtual void removeEffect(unsigned int slot);
156 
157  virtual bool attachFilter(IFilter* filter);
158  virtual void removeFilter();
159 #endif
160 
161  private:
163  void empty();
165  bool stream(ALuint buffer);
166 
168  ALuint Buffers[CAUDIO_SOURCE_NUM_BUFFERS];
169 
171  IAudioDecoder* Decoder;
172 
174  bool Loop;
176  bool Valid;
177 
179  float BufferTime;
181  int BufferPosition;
182 
183 #if CAUDIO_EFX_ENABLED == 1
184  cEFXFunctions* EFX;
187  void updateFilter(bool remove = false);
189  void updateEffect(unsigned int slot, bool remove = false);
190 
192  IEffect* Effects[CAUDIO_SOURCE_MAX_EFFECT_SLOTS];
194  unsigned int LastEffectTimeStamp[CAUDIO_SOURCE_MAX_EFFECT_SLOTS];
195 
197  IFilter* Filter;
199  unsigned int LastFilterTimeStamp;
200 
202  unsigned int EffectSlotsAvailable;
203 #endif
204  };
205 };
virtual int getCurrentAudioPosition()
Returns the current position in the decoded audio stream in bytes. See IAudioDecoder for details...
virtual float getMaxVolume() const
Returns the maximum volume that the source can achieve.
virtual void unRegisterEventHandler(ISourceEventHandler *handler)
Removes a specified event handler from this source.
virtual bool update()
Normally called every frame by the audio manager to update the internal buffers. Note: For internal u...
virtual float getMaxDistance() const
Returns the distance from the source where attenuation will stop.
virtual float getPitch() const
Returns the pitch of the source.
virtual void setInnerConeAngle(const float &innerAngle)
Sets the angle of the inner sound cone of the source. The cone opens up in the direction of the sourc...
virtual void setPosition(const cVector3 &position)
Sets the position of the source in 3D space.
virtual bool play2d(const bool &toLoop=false)
Plays the source in 2D mode.
virtual cVector3 getVelocity() const
Returns the audio objects velocity.
virtual void setMinDistance(const float &minDistance)
Sets the distance from the source where attenuation will begin.
virtual float getDopplerStrength() const
Returns the doppler strength, which enhances or diminishes the doppler effect.
virtual void unRegisterAllEventHandlers()
Removes all event handlers attached to this source.
virtual void pause()
Pauses playback of the sound source.
virtual void stop()
Stops playback of the sound source.
virtual void setMaxAttenuationDistance(const float &maxDistance)
Sets the distance from the source where attenuation will stop.
virtual bool play3d(const cVector3 &position, const float &soundstr=1.0, const bool &toLoop=false)
Plays the source in 3D mode.
virtual float getOuterConeVolume() const
Returns how much the volume of the source is scaled in the outer cone.
virtual void setPitch(const float &pitch)
Sets the pitch of the source.
virtual bool seek(const float &seconds, bool relative=false)
Seeks through the audio stream to a specific spot.
virtual float getRolloffFactor() const
Returns the factor used in attenuating the source over distance.
virtual bool drop()
Decrements the reference count by one. If it hits zero, this object is deleted.
virtual bool isValid() const
Returns if the source is ready to be used.
virtual bool isStopped() const
Returns if the source is stopped.
cAudioVector< ISourceEventHandler * >::Type eventHandlerList
List of registered event handlers.
Definition: cAudioSource.h:113
virtual int getCurrentCompressedAudioPosition()
Returns the current position in the original audio stream in bytes. See IAudioDecoder for details...
virtual cVector3 getPosition() const
Returns the audio objects position.
virtual void move(const cVector3 &position)
Convenience function to automatically set the velocity and position for you in a single call...
virtual void setDirection(const cVector3 &direction)
Sets the direction the source is facing.
virtual float getCurrentAudioTime()
Returns the current position in the audio stream in seconds. See IAudioDecoder for details...
Interface for a single audio source, which allow you to manipulate sound sources (speakers) in 2D or ...
Definition: IAudioSource.h:32
virtual int getTotalAudioSize()
Returns the total decoded size of the audio stream. See IAudioDecoder for details.
virtual bool isPaused() const
Returns if the source is paused.
virtual float getStrength() const
Returns the strength of the source.
virtual void setOuterConeVolume(const float &outerVolume)
Sets how much the volume of the source is scaled in the outer cone.
virtual void setDopplerVelocity(const cVector3 &dvelocity)
Overrides the doppler velocity vector. It is usually better to let the engine take care of it automat...
virtual cVector3 getDopplerVelocity() const
Returns the override for the doppler velocity vector.
virtual float getOuterConeAngle() const
Returns the angle of the outer sound cone of the source.
cAudioMutex Mutex
Mutex for thread synchronization.
Definition: cAudioSource.h:96
virtual void setDopplerStrength(const float &dstrength)
Sets the doppler strength, which enhances or diminishes the doppler effect. Can be used to exaggerate...
virtual bool isRelative() const
Return true for 2d sounds, false for 3d sounds.
Interface for event handlers on Audio Sources.
IAudioDeviceContext * Context
The context that owns this source.
Definition: cAudioSource.h:102
virtual float getMinVolume() const
Returns the minimum volume that the source can be attenuated to.
Class for manipulating vectors in 3D space.
Definition: cVector3.h:22
virtual void setVelocity(const cVector3 &velocity)
Sets the current velocity of the source for doppler effects.
ALuint Source
OpenAL source.
Definition: cAudioSource.h:108
virtual float calculateGain() const
Return gain, taking into account volume as well as distance attenuation.
virtual IAudioBuffer * getBuffer()
Get the audio buffer associated with the source.
Definition: cAudioSource.h:135
virtual bool play()
Plays the source with the last set parameters.
virtual float getTotalAudioTime()
Returns the total amount of time in the audio stream. See IAudioDecoder for details.
virtual void setOuterConeAngle(const float &outerAngle)
Sets the angle of the outer sound cone of the source. The cone opens up in the direction of the sourc...
virtual void setMinVolume(const float &minVolume)
Sets the minimum volume that the source can be attenuated to.
virtual void setStrength(const float &soundstrength)
Sets how well the source carries over distance.
virtual void loop(const bool &toLoop)
Controls whether the source should loop or not.
interface for a sample (audio buffer): completely loaded into memory, shareable across sources ...
Definition: IAudioSource.h:18
virtual bool isLooping() const
Returns if the source is looping.
float Volume
Holds the current volume.
Definition: cAudioSource.h:105
virtual int getCompressedAudioSize()
Returns the original size of the audio stream. See IAudioDecoder for details.
virtual float getVolume() const
Returns the source volume before attenuation and other effects.
virtual void setVolume(const float &volume)
Sets the source volume before attenuation and other effects.
virtual cVector3 getDirection() const
Returns the audio objects direction.
virtual void registerEventHandler(ISourceEventHandler *handler)
Registers a new event handler to this source.
virtual void setMaxVolume(const float &maxVolume)
Sets the maximum volume that the source can achieve.
Overrides the memory allocations for classes derived from it and makes them use the cAudio memory sys...
Interface for all Audio Decoders in cAudio.
Definition: IAudioDecoder.h:15
virtual float getMinDistance() const
Returns the distance from the source where attenuation will begin.
virtual void setRolloffFactor(const float &rolloff)
Sets the factor used in attenuating the source over distance.
virtual bool setBuffer(IAudioBuffer *buffer)
Change the audio buffer associated with the source.
Definition: cAudioSource.h:134
virtual float getInnerConeAngle() const
Returns the angle of the inner sound cone of the source.
void signalEvent(Events sevent)
Signals a event to all event handlers.
Main namespace for the entire cAudio library.
Definition: cAudioCapture.h:15
virtual bool isPlaying() const
Returns if the source is playing.