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Makerom: compress rom only if dmadata contains compressed files, pad to smallest power of 2

This commit is contained in:
rozlette 2019-11-12 22:08:56 -06:00
parent 33a45c2819
commit 77f79d068a
1 changed files with 19 additions and 2 deletions
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21
tools/makerom.py
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@ -46,7 +46,22 @@ if __name__ == "__main__":
dmadata_table = ast.literal_eval(f.read())
for base_file, comp_file, _, _ in dmadata_table:
file_name = base_file if comp_file == '' else comp_file
if base_file.endswith('dmadata'):
dma_file_name = base_file
else:
print('Could not find dmadata')
sys.exit(1)
has_compressed_files = False
with open(dma_file_name, 'rb') as dma_file:
dma_data = dma_file.read()
for i in range(0xC, len(dma_data), 0x10)
if read_uint32_be(dma_data, i) != 0:
has_compressed_files = True
break
for base_file, comp_file, _, _ in dmadata_table:
file_name = base_file if not has_compressed_files or comp_file == '' else comp_file
if file_name != '':
try:
with open(file_name, 'rb') as current_file:
@ -57,7 +72,9 @@ if __name__ == "__main__":
print('Could not open file ' + file_name)
sys.exit(1)
while total_size < 0x2000000:
required_rom_size = 1 << (len(outputBuffer) - 1).bit_length()
while total_size < required_rom_size:
outputBuffer.append(total_size % 256)
total_size += 1