88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
from enum import Enum
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from tabnanny import check
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import struct
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class Checksums(Enum):
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OOT_NTSC_10 = "EC7011B7"
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OOT_NTSC_11 = "D43DA81F"
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OOT_NTSC_12 = "693BA2AE"
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OOT_PAL_10 = "B044B569"
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OOT_PAL_11 = "B2055FBD"
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OOT_NTSC_JP_GC_CE = "F7F52DB8"
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OOT_NTSC_JP_GC = "F611F4BA"
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OOT_NTSC_US_GC = "F3DD35BA"
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OOT_PAL_GC = "09465AC3"
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OOT_NTSC_JP_MQ = "F43B45BA"
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OOT_NTSC_US_MQ = "F034001A"
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OOT_PAL_MQ = "1D4136F3"
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OOT_PAL_GC_DBG1 = "871E1C92"
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OOT_PAL_GC_DBG2 = "87121EFE"
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OOT_PAL_GC_MQ_DBG = "917D18F6"
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OOT_IQUE_TW = "3D81FB3E"
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OOT_IQUE_CN = "B1E1E07B"
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OOT_UNKNOWN = "FFFFFFFF"
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@classmethod
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def has_value(self, value):
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return value in self._value2member_map_
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class RomVersion:
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def __init__(self, file_table_path, file_table_off, xml_ver):
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self.file_table_off = file_table_off
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self.xml_ver = xml_ver
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with open(file_table_path, 'r') as f:
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self.file_table = [line.strip('\n') for line in f]
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ROM_INFO_TABLE = dict()
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ROM_INFO_TABLE[Checksums.OOT_PAL_GC] = RomVersion("CFG/filelists/gamecube_pal.txt", 0x7170, "GC_NMQ_PAL_F")
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ROM_INFO_TABLE[Checksums.OOT_PAL_GC_DBG1] = RomVersion("CFG/filelists/dbg.txt", 0x12F70, "GC_NMQ_D")
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class RomDmaEntry:
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def __init__(self, rom, i):
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off = rom.version.file_table_off + 16 * i
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(self.virtStart, \
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self.virtEnd, \
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self.physStart, \
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self.physEnd) = struct.unpack('>IIII', rom.rom_data[off:off+4*4])
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self.compressed = self.physEnd != 0
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self.size = self.physEnd - self.physStart \
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if self.compressed \
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else self.virtEnd - self.virtStart
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self.name = rom.version.file_table[i]
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class Z64Rom:
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def __init__(self, file_path):
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self.file_path = file_path
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with open(file_path, 'rb') as f:
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self.rom_data = f.read()
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self.is_valid = len(self.rom_data) > 20 * 1024 * 1024
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if not self.is_valid:
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return
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# get checkum
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checksum_str = self.rom_data[16:16+4].hex().upper()
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self.checksum = Checksums(checksum_str) if Checksums.has_value(checksum_str) else Checksums.OOT_UNKNOWN
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if self.checksum == Checksums.OOT_UNKNOWN:
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self.is_valid = False
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return
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# get rom version
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self.version = ROM_INFO_TABLE[self.checksum]
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def getDmaEntryByIndex(self, i):
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return RomDmaEntry(self, i)
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def readDmaEntry(self, entry):
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return self.rom_data[entry.physStart:entry.physStart + entry.size]
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@staticmethod
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def isValidRom(rom_path):
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return Z64Rom(rom_path).is_valid
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