def test_UB_read():
bits = BitStream("101010")
assert bits.read(UB[6]) == 42
assert bits.bits_available == 0
bits = BitStream("010 0111011001 101010 10001 10111")
assert bits.read(UB[3]) == 2
assert bits.bits_available == 26
assert bits.read(UB[10]) == 0b0111011001
assert bits.bits_available == 16
assert bits.read(UB[6]) == 0b101010
assert bits.bits_available == 10
assert bits.read(UB[5]) == 0b10001
assert bits.bits_available == 5
assert bits.read(UB[5]) == 0b10111
assert bits.bits_available == 0
bits = BitStream()
bits.write("\xDD\xEE\xFF", ByteString)
bits.seek(0)
result = bits.read(UB[24])
assert result == 0xDDEEFF
assert bits.bits_available == 0
bits.seek(0)
result = bits.read(UB[24:"<"])
assert result == 0xFFEEDD
assert bits.bits_available == 0
def get_data_stub(self):
bits = BitStream()
bits += Rect(XMax=self.width, YMax=self.height)
bits.flush()
bits.write(self.fps, FIXED8)
bits.write(self.num_frames, UI16)
return bits.serialize()
def serialize_data(self):
bits = BitStream()
bits.write(self.shapeid, UI16)
bits.write(self.depth, UI16)
bits += self.transform
bits += self.colortransform
return bits.serialize()
def serialize_style(self):
bits = BitStream()
bits += serialize_style_list(self.fills)
bits += serialize_style_list(self.strokes)
self.fillbits = nbits(len(self.fills))
self.linebits = nbits(len(self.strokes))
bits.write(self.fillbits, UB[4])
bits.write(self.linebits, UB[4])
return bits
def serialize_data(self):
DefineShape._current_variant = self.variant
self.shape.calculate_bounds()
bits = BitStream()
bits.write(self.characterid, UI16)
bits += self.shape.shape_bounds
bits += self.shape
DefineShape._current_variant = None
return bits.serialize()
def test_BitStream_specialized_format_write():
L = [1, 0, True, False]
bits = BitStream()
bits.write(L)
assert str(bits) == "1010"
bits = BitStream("11")
bits.write(L)
assert str(bits) == "1010"
bits = BitStream()
bits.write(L[3:], BitStream[1])
bits.write(L[2:], BitStream[1])
assert str(bits) == "01"
test = BitStream()
test.write("SWF", ByteString)
test.seek(0)
bits = BitStream()
bits.write(test, BitStream["<"])
bits.seek(0)
result = bits.read(ByteString[3])
assert result == "FWS"
assert bits.bits_available == 0
def test_BitStream_specialized_format_read():
bits = BitStream("1011001")
result = bits.read(BitStream[4])
assert result == [True, False, True, True]
assert bits.bits_available == 3
py.test.raises(IndexError, bits.read, BitStream[4])
bits = BitStream()
bits.write("SWF", ByteString)
bits.seek(0)
result = bits.read(BitStream[24:"<"])
result = result.read(ByteString[3])
assert result == "FWS"
assert bits.bits_available == 0
def serialize_data(self):
"""
Serailizes this tag, according to the following format.
======== =========
Format Parameter
======== =========
Reserved UI16 - 0
Password MD5
======== =========
"""
bits = BitStream()
bits.write(0, UI16)
bits.write(self.password, CString)
return bits.serialize()
def serialize_data(self):
"""
Serializes this tag, according to the following format.
======= =========
Format Parameter
======= =========
U[32] flags
CSTRING name
ABC abc file
======= =========
"""
bits = BitStream()
bits.write(self.flags, UI32)
bits.write(self.name, CString)
return bits.serialize() + self.abc.serialize()
def as_bitstream(self):
"""
Serializes this record, according to the following format.
====== =========
Format Parameter
====== =========
U[10] type
U[6] length
====== =========
"""
bits = BitStream()
bits.write((self.id << 6) | min(self.length, 0x3F), UI16)
if self.length >= 0x3F:
bits.write(self.length, SI32)
return bits
def test_CString_write():
# Testing basics.
bits = BitStream()
bits.write("FWS", CString)
assert bits.bits_available == 0
assert len(bits) == 32
bits.seek(0)
result = bits.read(Byte)
assert result == ord("F")
assert bits.bits_available == 24
result = bits.read(Byte)
assert result == ord("W")
assert bits.bits_available == 16
result = bits.read(Byte)
assert result == ord("S")
assert bits.bits_available == 8
result = bits.read(Byte)
assert result == 0
assert bits.bits_available == 0
def serialize(self):
code = ""
code += s_u32(self._name_index)
flags = BitStream()
flags.write(False)
flags.write(bool(self.metadata)) # Has Metadata
flags.write(self.is_override) # Is Override
flags.write(self.is_final) # Is Final
flags.write(self.kind, UB[4]) # kind
code += flags.serialize()
code += self.serialize_inner()
if self.metadata:
code += s_u32(len(self.metadata))
for m in self._metadata_indices:
code += s_u32(m)
return code
def test_Byte_read():
# Testing basics.
bits = BitStream("10101010 11001100")
result = bits.read(Byte[1])
assert result == 0b10101010
assert bits.bits_available == 8
result = bits.read(Byte[1])
assert result == 0b11001100
assert bits.bits_available == 0
# Testing out-of-bounds checking.
py.test.raises(ValueError, bits.read, Byte)
# Testing length.
bits.seek(0)
result = bits.read(Byte[2])
assert result == 0b1010101011001100
assert bits.bits_available == 0
# Testing endianness.
bits.seek(0)
result = bits.read(Byte[2:"<"])
assert result == 0b1100110010101010
assert bits.bits_available == 0
# Testing length behavior.
bits.seek(0)
result = bits.read(Byte) # This should read one byte.
assert result == 0b10101010
assert bits.bits_available == 8
# Make length not divisible by 8.
bits.seek(0, os.SEEK_END)
bits.write(Zero)
bits.seek(0)
result = bits.read(Byte) # But this should still work.
assert result == 0b10101010
assert bits.bits_available == 9
def test_ByteString_read():
# Testing basics.
bits = BitStream("00101010 00101111")
result = bits.read(ByteString[1])
assert result == chr(0b00101010)
assert bits.bits_available == 8
# Testing length.
bits.seek(0)
result = bits.read(ByteString[2])
assert result == chr(0b00101010) + chr(0b00101111)
assert bits.bits_available == 0
# Testing endianness.
bits.seek(0)
result = bits.read(ByteString[2:"<"])
assert result == chr(0b00101111) + chr(0b00101010)
assert bits.bits_available == 0
# Testing with no length provided.
bits.seek(0)
result = bits.read(ByteString)
assert result == chr(0b00101010) + chr(0b00101111)
# Testing non-flush length.
# Make length not divisible by 8.
bits.seek(0, os.SEEK_END)
bits.write(Zero)
bits.seek(0)
result = bits.read(ByteString[2]) # This should still work.
assert result == chr(0b00101010) + chr(0b00101111)
assert bits.bits_available == 1
bits.seek(0)
py.test.raises(ValueError, bits.read, ByteString) # But this should fail.
def serialize_style_list(lst):
bits = BitStream()
if len(lst) < 0xFF:
bits.write(len(lst), UI8)
else:
bits.write(0xFF, UI8)
bits.write(len(lst), UI16)
for style in lst:
bits += style
return bits
def serialize_data(self):
DefineShape._current_variant = self.variant
self.shape.calculate_bounds()
bits = BitStream()
bits.write(self.characterid, UI16) # Shape ID
bits += self.shape.shape_bounds # ShapeBounds Rect
bits += self.shape.edge_bounds # EdgeBounds Rect
bits.write(Zero[6]) # Reserved
bits.write(self.shape.has_scaling) # UsesNonScalingStrokes
bits.write(self.shape.has_non_scaling) # UsesScalingStrokes
bits += self.shape # ShapeWithStyle
DefineShape._current_variant = None
return bits.serialize()
def test_UB_write():
bits = BitStream()
bits.write(0b1111, UB[4])
assert len(bits) == 4 and str(bits) == "1111"
bits = BitStream()
bits.write(0b1111, UB[8])
assert len(bits) == 8 and str(bits) == "00001111"
bits = BitStream()
bits.write(0xDDEEFF, UB)
bits.seek(0)
result = bits.read(ByteString[3])
assert result == "\xDD\xEE\xFF"
assert bits.bits_available == 0
bits = BitStream()
bits.write(0xDDEEFF, UB["<"])
bits.seek(0)
result = bits.read(ByteString[3])
assert result == "\xFF\xEE\xDD"
assert bits.bits_available == 0
def test_CString_read():
# Testing basics.
bits = BitStream()
test_data = "test 123\x01\xFF"
bits.write(test_data, ByteString)
bits.write(Zero[8])
bits.seek(0)
result = bits.read(CString)
assert result == test_data
# Testing error-handling.
bits = BitStream()
bits.write("adsfasfdgjklhrgokrjygaosaf", ByteString)
bits.seek(0)
py.test.raises(ValueError, bits.read, CString)
def serialize_data(self):
"""
Serializes this tag, according to the following format.
======= =============
Format Parameter
======= =============
U[16] character id
CSTRING classsname
======= =============
"""
bits = BitStream()
bits.write(len(self.symbols), UI16)
for char_id, classname in self.symbols.iteritems():
bits.write(char_id, UI16)
bits.write(classname, CString)
return bits.serialize()
def serialize_data(self):
bits = BitStream()
bits.write(Zero[3])
bits.write(self.hasMetadata)
bits.write(self.useAS3)
bits.write(Zero[2])
bits.write(self.useNetwork)
bits.write(Zero[24])
return bits.serialize()
def serialize_data(self):
bits = BitStream()
bits.write(self.characterid, UI16)
bits.write(self.mc.num_frames, UI16)
return bits.serialize + self.mc.serialize()
def test_FormatArray_write():
bits = BitStream()
bits.write([True, False]*3, Bit[:][6])
assert str(bits) == "101010"
def serialize_data(self):
HasCharacterId = (self.charid is not None) and (not self.update)
bits = BitStream()
bits.write(False) # HasClipActions
bits.write(False) # HasClipDepth
bits.write(self.name is not None) # HasName
bits.write(False) # HasRatio
bits.write(self.colortransform is not None)
bits.write(self.transform is not None)
bits.write(HasCharacterId) # HasCharacterId
bits.write(self.update) # FlagMove
bits.write(self.depth, UI16)
if HasCharacterId:
bits.write(self.charid, UI16)
if self.name is not None:
bits.write(self.name, CString)
if self.transform is not None:
bits += self.transform
if self.colortransform is not None:
bits += self.colortransform
return bits.serialize()
def test_sequence_to_IFormat():
bits = BitStream()
bits.write([True, False, True])
assert str(bits) == "101"
def serialize_data(self):
bits = BitStream()
bits.write(self.depth, UI16)
return bits.serialize()
def serialize_data(self):
bits = BitStream()
bits.write(Zero[3])
bits.write(self.hasMetadata)
bits.write(self.useAS3)
bits.write(Zero[2])
bits.write(self.useNetwork)
bits.write(Zero[24])
return bits.serialize()
def as_bitstream(self):
bits = BitStream()
bits.write(self.TYPE, UI16)
bits.write(Struct.as_bitstream(self))
def test_Bit_write():
bits = BitStream()
# Testing IFormat adapting.
bits.write(True)
bits.write(False)
# Testing Bit format.
bits.write(1, Bit)
bits.write(0, Bit)
# Testing Bit format adaption by Bool.
bits.write(bits, Bit) # Should be True.
bits.write([], Bit) # Should be False.
# Testing boolean formats.
bits.write(One)
bits.write(Zero)
assert str(bits) == "10101010"
assert bits.bits_available == 0
def serialize_data(self):
bits = BitStream()
bits.write(self.characterid, UI16)
bits += self.rect
bits.flush()
flags = BitStream()
flags.write(self.text != "")
flags.write(self.wordwrap)
flags.write(self.multiline)
flags.write(self.password)
flags.write(self.readonly)
flags.write(self.color is not None)
flags.write(self.maxlength is not None)
flags.write(self.font is not None)
flags.write(self.fontclass is not None)
flags.write(self.autosize)
flags.write(self.layout is not None)
flags.write(not self.selectable)
flags.write(self.border)
flags.write(self.wasstatic)
flags.write(self.isHTML)
flags.write(self.outlines)
bits += flags
if self.font is not None:
bits.write(self.font.id, UI16) # Doesn't exist yet.
bits.write(self.size, UI16)
if self.fontclass is not None:
bits.write(self.fontclass, CString)
if self.color is not None:
bits += self.color
if self.maxlength is not None:
bits.write(self.maxlength, UI16)
if self.layout is not None:
bits += self.layout # Doesn't exist yet.
bits.write(self.variable, CString)
if self.text != "":
bits.write(self.text, CString)
return bits.serialize()
def test_Byte_write():
# Testing basics.
bits = BitStream()
bits.write(42, Byte)
assert str(bits) == "00101010"
# Testing signed numbers.
bits = BitStream()
bits.write(-42, SignedByte)
assert str(bits) == "11010110"
# Testing multiple-byte values.
bits = BitStream()
bits.write(1033, Byte)
assert str(bits) == "0000010000001001"
# Testing explicit length.
bits = BitStream()
bits.write(1033, Byte[3])
assert str(bits) == "000000000000010000001001"
# Testing explicit length with 0.
bits = BitStream()
bits.write(0, Byte[3])
assert str(bits) == "000000000000000000000000"
# Testing leftover < 0.
bits = BitStream()
py.test.raises(ValueError, bits.write, 1033, Byte[1])
# Testing endianness.
bits = BitStream()
bits.write(1033, Byte["<"])
assert str(bits) == "0000100100000100"
# Testing endianness and explicit length.
bits = BitStream()
bits.write(1033, Byte[3:"<"])
assert str(bits) == "000010010000010000000000"
# Testing endianness and explicit length with 0.
bits = BitStream()
bits.write(0, Byte[3:"<"])
assert str(bits) == "000000000000000000000000"
def _write(self, bs, cursor, value):
from fusion.bitstream.bitstream import BitStream
bits = BitStream()
if value in (0, 0.0): # value is zero
bits.write(Zero[self.length])
elif value == -0.0:
bits.write(One)
bits.write(Zero[self.length-1])
elif isnan(value):
bits.write(One [self.length])
elif value == float("-inf"): # negative infinity
bits.write(One [self._N_EXPN_BITS[self.length] + 1]) # sign merged
bits.write(Zero[self._N_FRAC_BITS[self.length]])
elif value == float("inf"): # positive infinity
bits.write(Zero)
bits.write(One [self._N_EXPN_BITS[self.length]])
bits.write(Zero[self._N_FRAC_BITS[self.length]])
else:
if value < 0:
bits.write(One)
value = ~value + 1
else:
bits.write(Zero)
exp = self._EXPN_BIAS[self.length]
if value < 1:
while int(value) != 1:
value *= 2
exp -= 1
else:
while int(value) != 1:
value /= 2
exp += 1
if exp < 0 or exp > (1 << self._N_EXPN_BITS[self.length]):
raise ValueError("Exponent out of range in %s." % (self,))
frac_total = 1 << self._N_FRAC_BITS[self.length]
bits.write(exp, UB[self._N_EXPN_BITS[self.length]])
bits.write(int((value-1)*frac_total) & (frac_total - 1),
UB[self._N_FRAC_BITS[self.length]])
bs.write(bits, BitStream[self.endianness])
def serialize_data(self):
bits = BitStream()
bits.write(self.characterid, UI16)
bits.write(self.mc.num_frames, UI16)
return bits.serialize + self.mc.serialize()
