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* [Audio 1/?] Extract Samplebanks and Soundfonts to XML * Remove config.py and use the version yamls for addresses, other suggested changes * Adjust setup-audio * Remove some commented out dead code (MM review)
107 lines
3.4 KiB
Python
107 lines
3.4 KiB
Python
# SPDX-FileCopyrightText: © 2024 ZeldaRET
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# SPDX-License-Identifier: CC0-1.0
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#
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# Implements code tables structure and related enums
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#
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import struct
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from enum import IntEnum
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from .util import incbin
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class AudioStorageMedium(IntEnum):
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MEDIUM_RAM = 0
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MEDIUM_UNK = 1
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MEDIUM_CART = 2
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MEDIUM_DISK_DRIVE = 3
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class AudioCachePolicy(IntEnum):
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CACHE_LOAD_PERMANENT = 0
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CACHE_LOAD_PERSISTENT = 1
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CACHE_LOAD_TEMPORARY = 2
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CACHE_LOAD_EITHER = 3
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CACHE_LOAD_EITHER_NOSYNC = 4
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class AudioCodeTableEntry:
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"""
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typedef struct {
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/* 0x00 */ u32 romAddr;
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/* 0x04 */ u32 size;
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/* 0x08 */ s8 medium;
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/* 0x09 */ s8 cachePolicy;
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/* 0x0A */ s16 shortData1;
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/* 0x0C */ s16 shortData2;
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/* 0x0E */ s16 shortData3;
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} AudioTableEntry; // size = 0x10
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"""
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def __init__(self, data):
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self.rom_addr, self.size, self.medium, self.cache_policy, self.short_data1, self.short_data2, \
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self.short_data3 = struct.unpack(">IIbbhhh", data[:0x10])
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self.medium = AudioStorageMedium(self.medium)
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self.cache_policy = AudioCachePolicy(self.cache_policy)
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self.sample_bank_id_1 = (self.short_data1 >> 8) & 0xFF
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self.sample_bank_id_2 = (self.short_data1 >> 0) & 0xFF
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self.num_instruments = (self.short_data2 >> 8) & 0xFF
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self.num_drums = (self.short_data2 >> 0) & 0xFF
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self.num_sfx = self.short_data3
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def __str__(self):
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out = "{\n"
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out += f" .romAddr = 0x{self.rom_addr:X}\n"
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out += f" .size = 0x{self.size:X}\n"
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out += f" .medium = {self.medium.name}\n"
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out += f" .cachePolicy = {self.cache_policy.name}\n"
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out += f" .shortData1 = ({self.sample_bank_id_1} << 8) | {self.sample_bank_id_2}\n"
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out += f" .shortData2 = ({self.num_instruments} << 8) | {self.num_drums}\n"
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out += f" .shortData3 = {self.num_sfx}\n"
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out += "}\n"
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return out
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def data(self, segment_data : memoryview, segment_offset : int) -> memoryview:
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return incbin(segment_data, self.rom_addr + segment_offset, self.size)
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class AudioCodeTable:
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"""
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typedef struct {
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/* 0x00 */ s16 numEntries;
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/* 0x02 */ s16 unkMediumParam;
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/* 0x04 */ u32 romAddr;
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/* 0x08 */ char pad[0x8];
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/* 0x10 */ AudioTableEntry entries[1/* numEntries */];
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} AudioTable; // size = 0x10 + 0x10 * numEntries
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"""
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def __init__(self, rom_image : memoryview, rom_start : int):
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header = incbin(rom_image, rom_start, 0x10)
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self.num_entries, self.unk_medium_param, self.rom_addr = struct.unpack(">hhI", header[:8])
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assert all([b == 0 for b in header[8:]])
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self.data = incbin(rom_image, rom_start, 0x10 + 0x10 * self.num_entries)
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self.entries = []
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for i in range(self.num_entries):
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self.entries.append(AudioCodeTableEntry(self.data[0x10 + 0x10 * i:][:0x10]))
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def __iter__(self) -> AudioCodeTableEntry:
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for e in self.entries:
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yield e
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def __len__(self):
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return len(self.entries)
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def __str__(self):
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out = "{\n"
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out += f" .numEntries = {self.num_entries}\n"
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out += f" .unkMediumParam = {self.unk_medium_param}\n"
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out += f" .romAddr = 0x{self.rom_addr:X}\n"
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out += " .entries = {\n"
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for entry in self.entries:
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out += str(entry) + "\n"
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out += " }\n"
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out += "}\n"
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return out
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