#!/usr/bin/env python2

import midi
import sys

RATE = 16384
#RATE = 8192

def array(type, name, data):
    data = list(data)

    print "const %s %s[] = {" % (type, name)
    print "  " + ", ".join(str(int(x)) for x in data)
    print "}; // " + str(len(data)) + " elements\n"

array("uint16_t", "note_fstep", [int((2 ** ((n - 69) / 12.0) * 440) * 12) for n in range(0, 106)])

mid = midi.read_midifile(sys.argv[1])

combined = []

for track in mid:
    t = 0
    for ev in track:
        t += ev.tick
        ev.tick = t
        combined.append(ev)

combined.sort(lambda a, b: cmp(a.tick, b.tick))

#print "\n".join(str(x) for x in combined[0:200] if x.name == "Note On" and x.channel == 0)

#print combined

for i in range(len(combined) - 1, -1, -1):
    if i > 0:
        combined[i].tick = combined[i].tick - combined[i-1].tick

#print combined

notes = []
#chans = [0, 1, 2, 3, 4, 5]
#chans = [0, 1, 2, 3, 4, 5, 6]
chans = None

for ev in combined:
    if ev.tick:
        #print "// sleep: " + str(ev.tick)
        tick = ev.tick
        while tick > 0:
            notes.append(min(tick, 0x7F))
            tick -= 0x7F

    #if ev.name == "Note On" and ev.channel in chans:
    #    print "// " + str(ev)
    if ev.name == "Note On" and ev.data[1] and ev.channel != 10 and (not chans or ev.channel in chans):
        n = ev.data[0]
        #print "// TOOK"
#        if ev.channel == 1:
#            n += 12

        notes.append(0x80 | n)

array("uint8_t", "notes", notes)