def patch_rom(clean_rom_filename, patched_rom_filename, patch_filename, headered, progress_bar=None):
if not os.path.isfile(clean_rom_filename):
raise RuntimeError("Clean Rom \"" + clean_rom_filename + "\" is not a file.")
if not os.path.isfile(patch_filename):
raise RuntimeError("Patch \"" + patch_filename + "\" is not a file.")
if clean_rom_filename != patched_rom_filename:
copyfile(clean_rom_filename, patched_rom_filename)
log.info("Patching ROM {} with patch {}".format(patched_rom_filename, patch_filename))
patching_start_time = time.time()
if patch_filename.endswith(".ips"):
output_rom = Rom()
output_rom.from_file(clean_rom_filename)
patch = IpsPatch()
elif patch_filename.endswith(".ebp"):
output_rom = EbRom()
output_rom.from_file(clean_rom_filename)
patch = EbpPatch()
else:
raise CoilSnakeError("Unknown patch format.")
# Load the patch and expand the ROM as needed
add_header = headered and not isinstance(patch, EbpPatch)
extra = int(add_header)*0x200 # 0x200 if a header will be added, 0 otherwise
patch.load(patch_filename)
if isinstance(patch, EbpPatch):
log.info("Patch: {title} by {author}".format(**patch.metadata))
if patch.last_offset_used > len(output_rom) + extra:
if patch.last_offset_used < 0x400000 + extra:
output_rom.expand(0x400000)
elif patch.last_offset_used < 0x600000 + extra:
output_rom.expand(0x600000)
else:
output_rom.expand(patch.last_offset_used)
# If the user specified the patch was made for a headered ROM, add a header
# to the ROM
if add_header:
output_rom.add_header()
# Apply the patch and write out the patched ROM
patch.apply(output_rom)
if add_header:
# Remove the header that was added, so that we're always dealing with
# unheadered ROMs in the end
output_rom.data = output_rom.data[0x200:]
output_rom.size -= 0x200
output_rom.to_file(patched_rom_filename)
log.info("Patched to {} in {:.2f}s".format(patched_rom_filename, time.time() - patching_start_time))
def patch_rom(clean_rom_filename, patched_rom_filename, patch_filename, headered, progress_bar=None):
if not os.path.isfile(clean_rom_filename):
raise RuntimeError("Clean Rom \"" + clean_rom_filename + "\" is not a file.")
if not os.path.isfile(patch_filename):
raise RuntimeError("Patch \"" + patch_filename + "\" is not a file.")
if clean_rom_filename != patched_rom_filename:
copyfile(clean_rom_filename, patched_rom_filename)
log.info("Patching ROM {} with patch {}".format(patched_rom_filename, patch_filename))
patching_start_time = time.time()
if patch_filename.endswith(".ips"):
output_rom = Rom()
output_rom.from_file(clean_rom_filename)
patch = IpsPatch()
elif patch_filename.endswith(".ebp"):
output_rom = EbRom()
output_rom.from_file(clean_rom_filename)
patch = EbpPatch()
else:
raise CoilSnakeError("Unknown patch format.")
# Load the patch and expand the ROM as needed
add_header = headered and not isinstance(patch, EbpPatch)
extra = int(add_header)*0x200 # 0x200 if a header will be added, 0 otherwise
patch.load(patch_filename)
if isinstance(patch, EbpPatch):
log.info("Patch: {title} by {author}".format(**patch.metadata))
if patch.last_offset_used > len(output_rom) + extra:
if patch.last_offset_used < 0x400000 + extra:
output_rom.expand(0x400000)
elif patch.last_offset_used < 0x600000 + extra:
output_rom.expand(0x600000)
else:
output_rom.expand(patch.last_offset_used)
# If the user specified the patch was made for a headered ROM, add a header
# to the ROM
if add_header:
output_rom.add_header()
# Apply the patch and write out the patched ROM
patch.apply(output_rom)
if add_header:
# Remove the header that was added, so that we're always dealing with
# unheadered ROMs in the end
output_rom.data = output_rom.data[0x200:]
output_rom.size -= 0x200
output_rom.to_file(patched_rom_filename)
log.info("Patched to {} in {:.2f}s".format(patched_rom_filename, time.time() - patching_start_time))
