def load_tmu(infile,song):
index = 0
with open(infile,"rb") as file:
data = file.read()
file.close()
val = data[index]
index += 1
song.set_version(val & 0x0f) # version
song.set_type(val >> 4) # type
str = data[index:index+32] # name
index += 32
song.name = str.decode('utf-8')
str = data[index:index+32] # by
index += 32
song.by = str.decode('utf-8')
val = data[index]
index += 1
song.set_speed(val) #speed
val = data[index]
index += 1
song.restart = val #order restart
val = data[index]
index += 1
song.set_length(val) #order length
lst = data[index:index+song.length]
index += song.length
song.order_list = lst # order list
for i in range(0,31): # set 16 instrument names.
ins = Instrument(i+1)
str = data[index:index+16]
index += 16
try:
ins.name = str.decode('utf-8')
except:
raise SystemExit(f"Error reading instrument name. Invalid data!")
i += 1
song.ins.append(ins)
for i in range(0,31):
ins = song.ins[i]
l = data[index] # length
ins.set_length(l)
index += 1
r = data[index] # restart
ins.restart = r
index += 1
if song.type == "SCC":
w = data[index] # waveform
ins.waveform = w
else:
v = data[index] # voice
ins.voice = v
index += 1
ins_data = data[index:index+(l*4)]
r = 0
for r in range(0,l):
row = ins_data[r*4:(r*4)+4]
ins.rows.append(row)
r+=1
index += (l*4)
i += 1
if song.type == "SCC": # Waveform data
for x in range(0,32):
waveform = Waveform(x)
waveform.data = data[index:index+32]
song.waveforms.append(waveform)
index +=32
else:
for x in range(0,16): # Custom FM voices
voice = Voice(x+178)
voice.data = data[index:index+8]
song.voices.append(voice)
index +=8
# Drum names
for d in range(0,20):
drum = Drum(d)
str = data[index:index+16]
drum.name = str.decode('utf-8')
d+=1
index+=16
song.drums.append(drum)
#drum macros
for d in range(0,20):
drum = song.drums[d]
l = data[index]
drum.set_length(l)
index+=1
drm_data = data[index:index+(l*7)]
index+=l*7
r=0
for r in range(0,l):
row = drm_data[r*7:(r*7)+7]
drum.rows.append(row)
r+=1
d+=1
# THIS IS TO OVERCOME AN ERROR IN THE FILES
index = index -1
p = 0 # Patterns
t = 0
while p != -1:
num = data[index]
if num == 255:
break
index+=1
l = data[index]
l += ord(data[index+1:index+2])*256
index+=2
# decompress pattern
cmp_pat = data[index:index+l]
pat = decompress_pattern(cmp_pat)
index+=l
# store pattern
pattern = Pattern(num,t)
song.patterns.append(pattern)
#print (pattern.tracks)
# store tracks
chan = 0
for chan in range(0,8):
#print(f"Pat:{num} Track: {t}")
track = Track(t)
row = 0
for row in range(0,64):
note = pat[(chan*4+row*32)+0]
ins = pat[(chan*4+row*32)+1]
tmp = int(pat[(chan*4+row*32)+2])
par = pat[(chan*4+row*32)+3]
vol = tmp >> 4
cmd = tmp & 0x0f
track.rows.append([note,ins,vol,cmd,par])
row += 1
chan += 1
t += 1
song.tracks.append(track)
