gistfile1.py

import sys
import struct
import shutil
import subprocess
import os

def read_byte(file):
    return struct.unpack("<B", file.read(1))[0]

def read_short(file):
    return struct.unpack("<H", file.read(2))[0]

def read_int(file):
    return struct.unpack("<I", file.read(4))[0]
    
def run_command(cmd, quiet):
    print cmd
    
    if quiet:
        with open(os.devnull, 'wb') as devnull:
            subprocess.check_call(cmd, stdout=devnull, stderr=subprocess.STDOUT)
    else:
        subprocess.check_call(cmd)
        
    print ""

def convert(filename):
    outfilename = os.path.splitext(filename)[0] + ".ctpk"
    
    width = 0
    height = 0
    data = []
    with open(filename, "rb") as file:
        if file.read(0x04) != "TEX\0":
            print "Not a valid TEX file"
            exit(-1)
            
    
        file.seek(0x07)
        width = read_short(file)
        height = read_short(file)
        file.seek(0x14)
        data = file.read()
    
    size = struct.pack("<I", len(data))
    width = struct.pack("<H", width)
    height = struct.pack("<H", height)
    
    with open(outfilename, "wb") as outfile:
        outfile.write(bytearray([0x43, 0x54, 0x50, 0x4B, 0x01, 0x00, 0x01, 0x00, 0x80, 0x00, 0x00, 0x00]))
        outfile.write(size)
        outfile.write(bytearray([0x58, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x44, 0x00, 0x00, 0x00]))
        outfile.write(size)
        outfile.write(bytearray([0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00]))
        outfile.write(width)
        outfile.write(height)
        outfile.write(bytearray([0x01, 0x02, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x98, 0xEF, 0xB5, 0xB9, 0x00, 0x00, 0x04, 0x00, 0x6F, 0x75, 0x74, 0x70, 0x75, 0x74, 0x2E, 0x74, 0x67, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49, 0xA5, 0xA1, 0x38, 0x00, 0x00, 0x00, 0x00, 0x01, 0x0B, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]))
        outfile.write(data)
    
    run_command("ctpktool.exe %s" % outfilename, False)

convert(sys.argv[1])