class TGA(bin.Structure, endianness=bin.LittleEndian):
id_size = bin.Integer(size=1)
color_map_type = bin.Integer(size=1, choices=COLOR_MAP_TYPES)
image_type = bin.Integer(size=1, choices=IMAGE_TYPES)
color_map_info = bin.SubStructure(ColorMap)
x_origin = bin.Integer(size=2)
y_origin = bin.Integer(size=2)
width = bin.Integer(size=2)
height = bin.Integer(size=2)
bit_depth = bin.Integer(size=1)
image_origin, alpha_depth = bin.SubStructure(AlphaOrigin)
image_id = bin.Bytes(size=id_size)
color_map_data = bin.List(bin.Integer(size=color_map_info.entry_size) / 8,
size=color_map_info.length)
image_data = bin.List(bin.Integer(size=1), size=width * height * bit_depth)
class ImageDescriptor(bin.Structure):
separator = bin.FixedString(b',')
left = bin.Integer(size=2)
top = bin.Integer(size=2)
width = bin.Integer(size=2)
height = bin.Integer(size=2)
info = bin.SubStructure(ImageInfoBits)
with info.has_color_map == True:
color_map = bin.List(bin.SubStructure(Color),
size=2**info.bits_per_pixel)
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 ScreenDescriptor(bin.Structure, endianness=bin.LittleEndian):
width = bin.Integer(size=2)
height = bin.Integer(size=2)
info = bin.SubStructure(ScreenInfoBits)
background_color = bin.Integer(size=1)
pixel_ratio = bin.Integer(size=1)
with info.has_color_map == True:
color_map = bin.List(bin.SubStructure(Color),
size=2**info.bits_per_pixel)
@property
def aspect_ratio(self):
if self.pixel_ratio == 0:
return None
return (self.pixel_ratio + 15) / 64
class BMP(bin.Structure, endianness=bin.LittleEndian):
signature = bin.FixedString('BM')
filesize = bin.Integer('Total file size', size=4)
reserved = bin.Reserved(size=4)
data_offset = bin.Integer('Offset of the actual image data', size=4)
header_size = bin.Integer(size=4, default_value=40)
width = bin.Integer(size=4)
height = bin.Integer(size=4)
plane_count = bin.Integer(size=2, default_value=1)
bit_depth = bin.Integer(size=2)
compression_type = bin.Integer(size=4,
choices=COMPRESSION_TYPES,
default_value=0)
data_size = bin.Integer('Size of the actual image data', size=4)
ppm_x = bin.Integer('Pixels per meter (X axis)', size=4)
ppm_y = bin.Integer('Pixels per meter (Y axis)', size=4)
color_count = bin.Integer('Number of colors', size=4)
important_color_count = bin.Integer('Number of important colors', size=4)
palette = bin.List(PaletteColor, size=color_count)
pixel_data = bin.Bytes(size=bin.Remainder)
class Pattern(bin.Structure):
rows = bin.List(Row, size=64)
def __iter__(self):
return iter(self.rows)
class Row(bin.Structure):
notes = bin.List(Note, size=8)
def __iter__(self):
return iter(self.notes)
class Row(bin.Structure):
notes = bin.List(Note, size=lambda self: self.get_parent().channels)
def __iter__(self):
return iter(self.rows)
class SuggestedPalette(bin.Structure):
name = bin.String(encoding='latin-1')
sample_depth = bin.Integer(size=1)
colors = bin.List(bin.SubStructure(SuggestedPaletteEntry), size=bin.Remainder)
class Histogram(bin.Structure):
frequencies = bin.List(bin.Integer(size=2), size=bin.Remainder)
class Palette(bin.Structure):
colors = bin.List(bin.SubStructure(PaletteColor), size=bin.Remainder)
def __iter__(self):
return iter(self.colors)
