Sound_Stream_AL.h

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#ifndef ZENI_SOUND_STREAM_AL_H
#define ZENI_SOUND_STREAM_AL_H

#include <Zeni/Sound_Renderer_AL.h>

#ifndef DISABLE_AL

#include <Zeni/Define.h>

namespace Zeni {

  class ZENI_AUDIO_DLL Sound_Stream_AL {
    Sound_Stream_AL(const Sound_Stream_AL &);
    Sound_Stream_AL & operator=(const Sound_Stream_AL &);

    // stereo 44kHz = 2 * 88000 bytes per second
    static const size_t NUM_BUFFERS = 60;
    static const size_t BUFFER_SIZE = 4096;

  public:
    Sound_Stream_AL(const String &path, const bool &looping_ = false, const float &time_ = 0.0f);
    ~Sound_Stream_AL();

    void set_pitch(const float &pitch = ZENI_DEFAULT_PITCH); 
    void set_gain(const float &gain = ZENI_DEFAULT_GAIN); 
    void set_position(const Point3f &position); 
    void set_velocity(const Vector3f &velocity); 
    void set_looping(const bool &looping); 
    void set_time(const float &time); 
    void set_reference_distance(const float &reference_distance = ZENI_DEFAULT_REFERENCE_DISTANCE); // Set the near clamping distance
    void set_max_distance(const float &max_distance = ZENI_DEFAULT_MAX_SOUND_DISTANCE); // Set the far clamping distance
    void set_rolloff(const float &rolloff = ZENI_DEFAULT_ROLLOFF); // Set the maximum reduction in volume due to distance

    float get_duration() const; 
    float get_pitch() const; 
    float get_gain() const; 
    Point3f get_position() const; 
    Vector3f get_velocity() const; 
    bool is_looping() const; 
    float get_time() const; 
    float get_reference_distance() const; // Get the near clamping distance
    float get_max_distance() const; // Get the far clamping distance
    float get_rolloff() const; // Get the maximum reduction in volume due to distance
    
    void play(); 
    void pause(); 
    void stop(); 

    bool is_playing() const; 
    bool is_paused() const; 
    bool is_stopped() const; 

    void update();
        
  private:
    void destroy();
    void stream(ALuint buffer);   // reloads a buffer

    OggVorbis_File  oggStream;     // stream handle
    vorbis_info*    vorbisInfo;    // some formatting data
    vorbis_comment* vorbisComment; // user comments
 
    ALuint buffers[NUM_BUFFERS]; // front and back buffers
    ALuint buffers_used;         // number of buffers in the queue
    ALuint source;               // audio source
    ALenum format;               // internal format

    bool looping;
  };

  struct ZENI_AUDIO_DLL Sound_Stream_Init_Failure : public Error {
    Sound_Stream_Init_Failure() : Error("Zeni Sound Stream Failed to Initialize Correctly") {}
  };

  struct ZENI_AUDIO_DLL Sound_Stream_Update_Failure : public Error {
    Sound_Stream_Update_Failure() : Error("Zeni Sound Stream Failed to Update Correctly") {}
  };

  struct ZENI_AUDIO_DLL Sound_Stream_Ogg_Read_Failure : public Error {
    Sound_Stream_Ogg_Read_Failure() : Error("Zeni Sound Stream Failed to Read .ogg File Correctly") {}
  };

}

#include <Zeni/Undefine.h>

#endif

#endif