File: allegrowr.cpp

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// alegrowr.cpp -- write sequence to an Allegro file (text)



#include "stdlib.h"

#include "stdio.h"

#include "assert.h"

#include "allegro.h"

#include "allegrowr.h"

#include "string.h"

#include "strparse.h"





void parameter_print(FILE *file, Parameter_ptr p)

{

    char str[256];

    fprintf(file, " -%s:", p->attr_name());

    switch (p->attr_type()) {

    case 'a':

        fprintf(file, "%s", p->a);

        break;

    case 'i':

        fprintf(file, "%d", p->i);

        break;

    case 'l':

        fprintf(file, "%s", p->l ? "true" : "false");

        break;

    case 'r':

        fprintf(file, "%g", p->r);

        break;

    case 's':

        string_escape(str, p->s, "\"");

        fprintf(file, "%s", str);

        break;

    }

}





void allegro_write(Seq_ptr seq, FILE *file)

{

    int i;

    // first write the tempo map

    Beats &beats = seq->map.beats;

    for (i = 0; i < beats.len - 1; i++) {

        Beat_ptr b = &(beats[i]);

        fprintf(file, "TW%g ", seq->map.time_to_beat(b->time) / 4);

        double tempo = (beats[i + 1].beat - beats[i].beat) /

                       (beats[i + 1].time - beats[i].time);

        fprintf(file, "-tempor:%g\n", tempo * 60);

    }

    if (seq->map.last_tempo_flag) { // we have final tempo:

        double time = seq->map.time_to_beat(beats[beats.len - 1].time) / 4;

        fprintf(file, "TW%g ", time);

        fprintf(file, "-tempor:%g\n", seq->map.last_tempo * 60.0);

    }



    // now write the notes at beat positions

    for (i = 0; i < seq->notes.len; i++) {

        Event_ptr e = seq->notes[i];

        double start = seq->map.time_to_beat(e->time);

        fprintf(file, "TW%g", start / 4);

        if (e->chan != -1) {

            fprintf(file, " V%d", e->chan);

        }

        if (e->type == 'n') {

            Note_ptr n = (Note_ptr) e;

            double dur = seq->map.time_to_beat(n->time + n->dur) - start;

            fprintf(file, " K%d P%g Q%g L%g", n->key, n->pitch, dur, n->loud);

            Parameters_ptr p = n->parameters;

            while (p) {

                parameter_print(file, &(p->parm));

                p = p->next;

            }

        } else { // an update

            Update_ptr u = (Update_ptr) e;

            if (u->key != -1) {

                fprintf(file, " K%d", u->key);

            }

            parameter_print(file, &(u->parameter));

        }

        fprintf(file, "\n");

    }

}