Spatializer.h

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/*
 *
 *  3D Spatializer Class
 *  Header
 *
 *  Brent Lehman
 *  30 April 2002
 *
 *
 */


#include "CSL_Core.h"
#include "Geometer.h"


namespace csl {


typedef enum {

    POINT_DIAPHRAGM, // No HRTFs applied. Simulate a raw, ideal transducer
    DUMMY_HEAD, // Right ear of dummy head
    DUMMY_HEAD_INVERTED, // Left ear of dummy head
    NUM_EAR_TYPES

} ear_type_t;


class Spatializer
{

    short** xfer_fxns; // An array of arrays, each array holding an HRTF
    int fxn_length; // assumes every HRTF has the same length
    int num_fxns; // number of array entries in xfer_fxns
    sample* ir; // the most recently calculated impulse response
    int ir_length; // length of ir
    char* kemar_path; // file system path to the KEMAR data
    ear_type_t ear_type; // what spatialization style to do

public:

    Spatializer(char* pathname, ear_type_t et=DUMMY_HEAD);
    ~Spatializer();

    void spatialize_reflections(soundray* rays, int num_rays, double bleed_coeff=0.0);
    void spatialize_reflections(Geometer & geo, double bleed_coeff=0.0);
    sample* get_IR();
    bool get_IR(Buffer& irbuffer);
    int get_length();

    // early_late = 1: early component is at 100%, late is at 0%
    // early_late = 0: vice versa
    static bool mono_mix_early_late(Buffer& early, Buffer& late, Buffer& mix,
        float early_late);

};

}

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