mirror of
https://github.com/blawar/ooot.git
synced 2024-07-02 17:13:34 +00:00
112 lines
3.2 KiB
Python
Executable File
112 lines
3.2 KiB
Python
Executable File
#!/usr/bin/python3
|
|
|
|
import os
|
|
import sys
|
|
import struct
|
|
import argparse
|
|
import re
|
|
from overlayhelpers.filemap import FileResult, GetFromVRam, GetFromRom
|
|
|
|
ICHAIN_MACROS = [
|
|
'ICHAIN_U8',
|
|
'ICHAIN_S8',
|
|
'ICHAIN_U16',
|
|
'ICHAIN_S16',
|
|
'ICHAIN_U32',
|
|
'ICHAIN_S32',
|
|
'ICHAIN_F32',
|
|
'ICHAIN_F32_DIV1000',
|
|
'ICHAIN_VEC3F',
|
|
'ICHAIN_VEC3F_DIV1000',
|
|
'ICHAIN_VEC3S',
|
|
]
|
|
|
|
Z64_ACTOR_PATH = "../include/z64actor.h"
|
|
|
|
def get_rom_address(offset):
|
|
|
|
if offset.startswith("D_"):
|
|
offset = offset[2:]
|
|
|
|
offset = int(offset, 16)
|
|
|
|
if offset >= 0x80000000:
|
|
result = GetFromVRam(offset)
|
|
offset = result.vrom.start + result.offset
|
|
|
|
return hex(offset)
|
|
|
|
def get_actor_var_names():
|
|
in_actor = False
|
|
actor_vars = {}
|
|
with open(os.path.dirname(os.path.realpath(__file__)) + "/" + Z64_ACTOR_PATH) as actor_h:
|
|
for line in actor_h:
|
|
if in_actor:
|
|
if "}" in line:
|
|
# Reached the end of the actor struct so break out
|
|
break
|
|
|
|
# Parse out the memory address (from the comment) and the variable name
|
|
regex = r'.*\/\* (.*) \*\/\s+(struct)?\s*.+\s+(.+);.*'
|
|
actor_var_info = re.match(regex, line)
|
|
|
|
if actor_var_info:
|
|
# Strip off the 0x0* part and store it
|
|
new_var_index = re.sub('0x0*', '', actor_var_info[1])
|
|
actor_vars[new_var_index] = actor_var_info[3]
|
|
|
|
elif "typedef struct Actor {" in line:
|
|
# Found the Actor struct
|
|
in_actor = True
|
|
return actor_vars
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser(description='Decompiles an InitChain')
|
|
parser.add_argument('filename', help='ROM file path')
|
|
parser.add_argument('offset', help='ROM offset or symbol of an InitChain')
|
|
parser.add_argument('--names', action="store_true", help='Retrieve variable names from the actor struct')
|
|
args = parser.parse_args()
|
|
|
|
# Get the ROM address, if the offset is already a ROM address it will just be returned.
|
|
args.offset = get_rom_address(args.offset)
|
|
|
|
romOff = int(args.offset, 16)
|
|
|
|
try:
|
|
with open(args.filename, 'rb') as f:
|
|
romData = f.read()
|
|
except IOError:
|
|
print('failed to read file ' + args.filename)
|
|
sys.exit(1)
|
|
|
|
print ('static InitChainEntry sInitChain[] = {')
|
|
|
|
if args.names:
|
|
actor_variable_names = get_actor_var_names()
|
|
|
|
while True:
|
|
entry = struct.unpack('>I', romData[romOff:romOff+4])[0]
|
|
romOff += 4
|
|
|
|
cont = entry >> 31
|
|
t = (entry >> 27) & 0xF
|
|
offset = ((entry) >> 16) & 0x7FF
|
|
value = (entry) & 0xFFFF
|
|
if value >= 0x8000 and not ICHAIN_MACROS[t].startswith('ICHAIN_U'):
|
|
value -= 0x10000
|
|
|
|
var_name = '{0:X}'.format(offset)
|
|
|
|
if args.names and var_name in actor_variable_names:
|
|
var_name = actor_variable_names[var_name]
|
|
else:
|
|
var_name = "unk_" + var_name
|
|
|
|
print(' {0}({1}, {2}, {3}),'.format(ICHAIN_MACROS[t], var_name, value, ('ICHAIN_CONTINUE' if cont == 1 else 'ICHAIN_STOP')))
|
|
if cont == 0:
|
|
break
|
|
print ('};')
|
|
|
|
if __name__ == "__main__":
|
|
main()
|