mirror of https://github.com/zeldaret/mm.git
65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
import os
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import struct
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import sys
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OUT = 'build/baserom/dmadata'
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from dmadata_table import *
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def align_up(base, align_to):
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return ((base + align_to - 1) // align_to) * align_to
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if __name__ == "__main__":
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with open(OUT, 'wb') as dmadata:
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curr_vrom = 0
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curr_phys = 0
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for base_file, comp_file, alignment, size_if_missing in dmadata_table:
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try:
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uncompressed = comp_file == ''
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missing = base_file == '' and comp_file == ''
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blank = missing and size_if_missing == 0
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is_dmadata = base_file == 'dmadata'
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alignment = max(alignment, 0x10)
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if missing:
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vrom_size = size_if_missing
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phys_size = 0
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elif is_dmadata:
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vrom_size = len(dmadata_table) * 0x10
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phys_size = vrom_size
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else:
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vrom_size = os.path.getsize(base_file)
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if uncompressed:
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phys_size = vrom_size
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else:
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phys_size = os.path.getsize(comp_file)
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if blank:
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vrom_start = 0
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vrom_end = 0
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else:
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vrom_start = align_up(curr_vrom, alignment)
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vrom_end = vrom_start + vrom_size
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if blank:
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phys_start = 0
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phys_end = 0
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elif missing:
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phys_start = 0xFFFFFFFF
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phys_end = 0xFFFFFFFF
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else:
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phys_start = align_up(curr_phys, 0x10)
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phys_end = 0 if uncompressed else phys_start + phys_size
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curr_vrom = align_up(curr_vrom, alignment) + vrom_size
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curr_phys = align_up(curr_phys, 0x10) + phys_size
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dmadata.write(vrom_start.to_bytes(4, 'big'))
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dmadata.write(vrom_end.to_bytes(4, 'big'))
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dmadata.write(phys_start.to_bytes(4, 'big'))
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dmadata.write(phys_end.to_bytes(4, 'big'))
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except:
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print('Error when processing entry ' + base_file)
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sys.exit(1)
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