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mark files for no compression, reduce alignment

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this fixes two files that weren't being dumped properly.
everything seems to be working now!
This commit is contained in:
Connor Olding 2018-08-11 04:40:49 +02:00
parent 431ee8e37d
commit 124e6d9f2c
1 changed files with 21 additions and 23 deletions
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44
fs.py
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@ -40,8 +40,8 @@ def hexdump(data):
print(("{:06X} |" + " {:02X}" * len(butts)).format(i * 16, *butts))
def pad_align_data(data):
if len(data) % 16 != 0:
return data + bytearray(16 - len(data) % 16)
if len(data) % 8 != 0:
return data + bytearray(8 - len(data) % 8)
else:
return data
@ -240,14 +240,7 @@ def create_rom(d):
rom_size = 8 * 1024 * 1024
base_offset = 0x2008
# TODO: don't hardcode?:
skip_14 = [
32, # sound or music bank?
33, # sound or music bank?
220, # ?
221, # ?
267, # ?
]
nocomps = []
with open(d + ".z64", "w+b") as f:
# initialize with zeros
@ -263,10 +256,12 @@ def create_rom(d):
f.seek(0)
f.write(data)
elif "-" in fn:
elif fn.endswith(".bin") and "-" in fn:
extless = fn.split(".")[0]
di, fi = extless.split("-")
di, fi = extless.split("-")[:2]
di, fi = int(di), int(fi)
if extless.endswith("-nocomp"):
nocomps.append((di, fi))
if di != old_di:
old_fi = -1
old_di = di
@ -288,7 +283,7 @@ def create_rom(d):
offset = 0
for fi, data in enumerate(files):
f.write(W4(offset))
if fi == 0 and di != 14 or di == 14 and fi in skip_14:
if fi == 0 and di != 14 or (di, fi) in nocomps:
new_data = data
else:
#new_data = compress(data, "best" if di == 14 else "greedy")
@ -341,20 +336,23 @@ def dump_files(f):
header_resume = f.tell()
seek_to = offset + base_offset + block_offset
#print(f"offset: {offset:08X}")
#print(f"base_offset: {base_offset:08X}")
#print(f"block_offset: {block_offset:08X}")
fn = f"{dir_index:02}-{file_index:03}.bin"
print(f"extracting file at {seek_to:06X} to {fn}")
f.seek(seek_to)
hint = R1(f.read(1)) # TODO: what is this really?
if hint == 0:
uncompressed_size = R4(b"\0" + f.read(3))
temp = f.read(4)
hint = temp[0] # TODO: what is this really?
uncompressed_size = R4(temp)
is_compressed = hint == 0 and uncompressed_size != 0
fn = f"{dir_index:02}-{file_index:03}.bin"
if not is_compressed:
fn = fn.replace(".bin", "-nocomp.bin")
print(f"extracting file at {seek_to:06X} to {fn}")
if is_compressed:
data = decompress(f.read(size - 4), uncompressed_size)
else:
print("hinted:", fn)
data = bytes([hint]) + f.read(size - 1)
data = temp + f.read(size - 4)
dump_as(data, fn)
f.seek(header_resume)