mirror of https://github.com/zeldaret/tp.git
62 lines
1.6 KiB
Python
62 lines
1.6 KiB
Python
import os
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import struct
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from typing import BinaryIO
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def skip_bytes(binary_file:BinaryIO, byte_count:int) -> None:
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binary_file.seek(byte_count, os.SEEK_CUR)
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def read_s8(binary_file: BinaryIO)-> int:
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chunk = binary_file.read(1)
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if len(chunk) < 1:
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raise EOFError()
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return struct.unpack(">b", chunk)[0]
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def read_s16(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(2)
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if len(chunk) < 2:
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raise EOFError()
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return struct.unpack(">h", chunk)[0]
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def read_s32(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(4)
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if len(chunk) < 4:
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raise EOFError()
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return struct.unpack(">i", chunk)[0]
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def read_u8(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(1)
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if len(chunk) < 1:
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raise EOFError()
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return struct.unpack(">B", chunk)[0]
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def read_u16(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(2)
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if len(chunk) < 2:
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raise EOFError()
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return struct.unpack(">H", chunk)[0]
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def read_u32(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(4)
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if len(chunk) < 4:
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raise EOFError()
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return struct.unpack(">I", chunk)[0]
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def read_f32(binary_file: BinaryIO) -> int:
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chunk = binary_file.read(4)
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if len(chunk) < 4:
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raise EOFError()
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return struct.unpack(">f", chunk)[0]
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def read_bytes_until_null(binary_file: BinaryIO) -> bytes:
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begin = binary_file.tell()
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while True:
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b = binary_file.read(1)
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if len(b) == 0:
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raise EOFError()
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if b[0] == 0:
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break
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str_length = binary_file.tell() - begin - 1
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binary_file.seek(begin)
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return binary_file.read(str_length)
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