forked from feartec/benzin
-
Notifications
You must be signed in to change notification settings - Fork 9
/
parse-brlyt.py
181 lines (142 loc) · 6.78 KB
/
parse-brlyt.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
import sys, struct, re
from ethyl import *
def main():
if len(sys.argv) != 2:
print 'Usage: python parse-brlyt.py something.brlyt'
sys.exit(1)
f = open(sys.argv[1], 'rb')
rlyt = f.read()
f.close()
assert rlyt[0:8] == 'RLYT\xfe\xff\x00\x08'
offs, nel = struct.unpack('>hh', rlyt[0xc:0x10])
ch = iff_to_chunks(rlyt[offs:])
assert len(ch) == nel
indentlevel = 0
for typ, chunk in ch:
print ' ' * indentlevel + open_paren(typ), #+ ' ' + hex(len(chunk))
vars = None
if typ in ('pic1', 'pan1', 'bnd1', 'wnd1', 'txt1'):
vars, pos = parse_data(chunk, 'pane')
assert chunk[:pos] == unparse_data(vars, 'pane') # for testing
if typ == 'txt1':
vars2, pos = parse_data(chunk[pos:], 'text', '~text')
os = vars2['~text.name_offs'] - 8
txt = chunk[os:os + vars2['~text.len2']]
vars2['~text.text'] = unicode(txt, 'utf_16_be').rstrip('\x00')
vars2['~text.material'] = materials[vars2['~text.mat_off']]
vars.update(vars2)
#print vars['~text.cnt2'], len(vars2['~text.text']), len(txt), repr(txt)
elif typ == 'pic1':
vars2, pos = parse_data(chunk, 'pic', prefix='~pic', start=pos)
vars2['~pic.material'] = materials[vars2['~pic.mat_off']]
vars2['~pic.texcoords'] = []
for n in xrange(vars2['~pic.num_texcoords']):
vars2['~pic.texcoords'].append(struct.unpack('>ffffffff', chunk[pos:pos+0x20]))
pos += 0x20
assert pos == len(chunk)
vars.update(vars2)
elif typ == 'lyt1':
vars = parse_data(chunk, 'lytheader')
elif typ == 'grp1':
vars, pos = parse_data(chunk, 'group')
vars['subs'] = []
for n in xrange(vars['numsubs']):
vars['subs'].append(nullterm(chunk[pos:pos+16]))
pos += 16
elif typ in ('txl1', 'fnl1'):
things = {'txl1': 'textures', 'fnl1': 'files'}[typ]
vars, pos = parse_data(chunk, 'numoffs')
vars[things] = []
pos += vars['offs']
bpos = pos
del vars['offs'] # unneeded
for n in xrange(vars['num']):
offset, unk = struct.unpack('>II', chunk[pos:pos+8])
name = nullterm(chunk[offset + bpos:])
vars[things].append({'name': name, 'unk': unk})
pos += 8
if typ == 'txl1':
textures = vars['textures']
elif typ == 'mat1':
vars, pos = parse_data(chunk, 'numoffs')
vars['materials'] = []
pos += vars['offs']
bpos = pos
del vars['offs']
materials = []
for n in xrange(vars['num']):
offset, = struct.unpack('>I', chunk[pos:pos+4])
mat, mpos = parse_data(chunk, 'material', start = offset - 8)
#vars['materials'].append(mat)
flags = mat['flags']
materials.append(mat['name'])
assert mpos == 0x40 + offset - 8
#print hex(struct.unpack('>I', chunk[mpos:mpos+4])[0])
# I believe material is:
# 0x40, followed by
# 4 * flags[28-31], followed by
mat['texref'], mpos = get_array(chunk, mpos, bit_extract(flags, 28, 31), 4, 'texref')
for a in mat['texref']:
a['tex'] = textures[a['tex_offs']]['name']
# 0x14 * flags[24-27], followed by
mat['ua2'], mpos = get_array(chunk, mpos, bit_extract(flags, 24, 27), 0x14, 'ua2')
# 4*flags[20-23], followed by
mat['ua3'], mpos = get_array(chunk, mpos, bit_extract(flags, 20, 23), 4, '4b')
# Changing ua3 things
# 1st --> disappears.
# 2nd --> no visible effect.
# 3rd --> disappears.
# 4th --> no visible effect.
# 4 * flags[6]
mat['ua4'], mpos = get_opt(chunk, mpos, bit_extract(flags, 6), 4, '4b')
# 4 * flags[4]
mat['ua5'], mpos = get_opt(chunk, mpos, bit_extract(flags, 4), 4, '4b')
# 4 * flags[19]
mat['ua6'], mpos = get_opt(chunk, mpos, bit_extract(flags, 19), 4, '4b')
# 0x14 * flags[17-18]
mat['ua7'], mpos = get_array(chunk, mpos, bit_extract(flags, 17, 18), 0x14, 'ua7')
# 4 * flags[14-16]
mat['ua8'], mpos = get_array(chunk, mpos, bit_extract(flags, 14, 16), 4, '4b')
# 0x10 * flags[9-13]
mat['ua9'], mpos = get_array(chunk, mpos, bit_extract(flags, 9, 13), 0x10, '10b')
# 4 * flags[8], these are bytes btw
mat['uaa'], mpos = get_opt(chunk, mpos, bit_extract(flags, 8), 4, '4b')
# 4 * flags[7]
mat['uab'], mpos = get_opt(chunk, mpos, bit_extract(flags, 7), 4, '4b')
if n < vars['num'] - 1:
next_offset, = struct.unpack('>I', chunk[pos+4:pos+8])
if next_offset - 8 != mpos:
mat['~_insane'] = next_offset - 8 - mpos # Extra shit we didn't parse :(
mat['unk_bit_5'] = bit_extract(flags, 5)
mat['unk_bits_0_3'] = bit_extract(flags, 0, 3) # Overwritten by stuff
vars['materials'].append(mat)
pos += 4
elif typ in ('grs1', 'pas1'):
indentlevel += 1
elif typ in ('gre1', 'pae1'):
indentlevel -= 1
else:
print 'Unhandled type %s' % typ
print repr(chunk)
if vars: pr_dict(vars, ' ' * indentlevel + ' ')
print close_paren(typ, indentlevel)
#print hex(len(ch))
def open_paren(typ):
if typ in ('grs1', 'pas1'):
return "'" + typ + "'"
elif typ in ('gre1', 'pae1'):
return "'" + typ + "'"
else:
return "('" + typ + "',\n"
def close_paren(typ, indentlevel):
if typ in ('grs1', 'pas1'):
indentlevel -= 1
return ','
elif typ in ('gre1', 'pae1'):
indentlevel += 1
return ','
return ' ' * indentlevel + ") ,"
if __name__ == "__main__":
print '['
main()
print ']\n'