class Sample(bin.Structure):
title = bin.FixedLengthString(size=13, encoding='ascii', padding='\x00')
size = bin.PositiveInteger(size=4)
loop_start = bin.PositiveInteger(size=4, default_value=0)
loop_end = bin.PositiveInteger(size=4, default_value=0xFFFFF)
@property
def data(self):
index = self.get_parent().samples.index(self)
return self.get_parent().sample_data[index]
def __unicode__(self):
return self.title
class Note(bin.PackedStructure):
pitch = bin.PositiveInteger(size=6)
sample = bin.PositiveInteger(size=6)
volume = bin.PositiveInteger(size=4)
command = bin.PositiveInteger(size=4)
command_value = bin.PositiveInteger(size=4)
@sample.getter
def sample(self, index):
return self.get_parent().samples[index]
@sample.setter
def sample(self, sample):
return self.get_parent().samples.index(sample)
class Note(bin.PackedStructure):
sample_hi = bin.PositiveInteger(size=4)
period = bin.PositiveInteger(size=12)
sample_lo = bin.PositiveInteger(size=4)
effect = bin.PositiveInteger(size=12)
@property
def sample(self):
index = self.sample_hi << 4 + self.sample_lo
return self.get_parent().samples[index]
@sample.setter
def sample(self, sample):
index = self.get_parent().samples.index(sample)
self.sample_hi = index >> 4
self.sample_lo = index & 0xF
class _669(bin.File):
marker = bin.FixedString('if')
message = bin.List(bin.String(size=36, encoding='ascii', padding=' '), size=3)
sample_count = bin.PositiveInteger(size=1, max_value=64)
pattern_count = bin.PositiveInteger(size=1, max_value=128)
restart_position = bin.PositiveInteger(size=1)
pattern_order = bin.List(bin.PositiveInteger(size=1, max_value=128), size=128)
pattern_tempos = bin.List(bin.PositiveInteger(size=1), size=128)
pattern_breaks = bin.List(bin.PositiveInteger(size=1), size=128)
samples = bin.List(Sample, size=sample_count)
patterns = bin.List(Pattern, size=pattern_count)
sample_data = bin.ByteString(size=bin.REMAINDER)
@sample_data.getter
def sample_data(self, data):
offset = 0
output = []
for info in self.samples:
output.append(data[offset:offset + info.size])
offset += info.size
return output
@sample_data.setter
def sample_data(self, data_list):
return ''.join(data_list)
def __iter__(self):
for index in self.pattern_order:
yield self.patterns[index]
def __unicode__(self):
return self.message[0]
class Options:
endianness = bin.LittleEndian
class MOD(bin.File):
channels = 4
title = bin.FixedLengthString(size=20)
samples = bin.List(Sample, size=15)
order_count = bin.PositiveInteger(size=1)
restart_position = bin.PositiveInteger(size=1)
pattern_order = bin.List(bin.PositiveInteger(size=1), size=128)
marker = bin.FixedString('M.K.')
patterns = bin.List(Pattern, size=lambda self: max(self.pattern_order) + 1)
sample_data = bin.ByteString(size=bin.REMAINDER)
@property
def pattern_count(self):
return max(self.order) + 1
@sample_data.getter
def sample_data(self, data):
offset = 0
output = []
for info in self.samples:
output.append(data[offset:offset + info.size])
offset += info.size
return output
@sample_data.setter
def sample_data(self, data_list):
return ''.join(data_list)
def __iter__(self):
for index in self.pattern_order:
yield self.patterns[index]
def __unicode__(self):
return self.title
class Options:
endianness = bin.BigEndian
class Sample(bin.Structure):
name = bin.FixedLengthString(size=22)
size = SampleLength(size=2)
finetune = bin.SubStructure(FineTune)
volume = bin.PositiveInteger(size=1)
loop_start = SampleLength(size=2, default_value=0)
loop_length = SampleLength(size=2, default_value=0)
@property
def loop_end(self):
return self.loop_start + self.loop_length
@property
def data(self):
index = self.get_parent().samples.index(self)
return self.get_parent().sample_data[index]
def __unicode__(self):
return self.name