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#include "OoTAudioFactory.h"
#include "OoTAudioSequenceWriter.h"
#include "OoTAudioSampleWriter.h"
#include "OoTAudioFontWriter.h"
#include "spdlog/spdlog.h"
#include "Companion.h"
#include "utils/Decompressor.h"
#include <algorithm>
#include <sstream>
namespace OoT {
// BinaryReader copies its whole window up front, so the window must not run past the segment.
static size_t TableWindow(size_t segmentSize, uint32_t tableOffset) {
if (tableOffset >= segmentSize) {
throw std::runtime_error("Audio table offset 0x" + fmt::format("{:X}", tableOffset) +
" is outside the 0x" + fmt::format("{:X}", segmentSize) + " byte code segment");
}
return std::min<size_t>(segmentSize - tableOffset, 0x10000);
}
std::vector<AudioTableEntry> OoTAudioFactory::ParseAudioTable(const uint8_t* codeData, size_t segmentSize,
uint32_t tableOffset) {
LUS::BinaryReader reader((char*)(codeData + tableOffset), TableWindow(segmentSize, tableOffset));
reader.SetEndianness(Torch::Endianness::Big);
uint16_t numEntries = reader.ReadUInt16();
reader.ReadUInt16(); // padding
reader.ReadUInt32(); // romAddr (unused)
reader.ReadUInt32(); // padding
reader.ReadUInt32(); // padding
std::vector<AudioTableEntry> entries;
entries.reserve(numEntries);
for (uint16_t i = 0; i < numEntries; i++) {
AudioTableEntry e;
e.ptr = reader.ReadUInt32();
e.size = reader.ReadUInt32();
e.medium = reader.ReadUByte();
e.cachePolicy = reader.ReadUByte();
e.data1 = reader.ReadInt16();
e.data2 = reader.ReadInt16();
e.data3 = reader.ReadInt16();
entries.push_back(e);
}
return entries;
}
std::vector<std::vector<uint8_t>> OoTAudioFactory::ParseSequenceFontTable(
const uint8_t* codeData, size_t segmentSize, uint32_t tableOffset, uint32_t numSequences) {
std::vector<std::vector<uint8_t>> result;
result.reserve(numSequences);
LUS::BinaryReader reader((char*)(codeData + tableOffset), TableWindow(segmentSize, tableOffset));
reader.SetEndianness(Torch::Endianness::Big);
std::vector<uint16_t> offsets;
for (uint32_t i = 0; i < numSequences; i++) {
offsets.push_back(reader.ReadUInt16());
}
for (uint32_t i = 0; i < numSequences; i++) {
LUS::BinaryReader dataReader((char*)(codeData + tableOffset + offsets[i]), 256);
dataReader.SetEndianness(Torch::Endianness::Big);
uint8_t count = dataReader.ReadUByte();
std::vector<uint8_t> fonts;
for (uint8_t j = 0; j < count; j++) {
fonts.push_back(dataReader.ReadUByte());
}
result.push_back(fonts);
}
return result;
}
std::vector<char> OoTAudioFactory::BuildMainAudioHeader() {
LUS::BinaryWriter w;
BaseExporter::WriteHeader(w, Torch::ResourceType::OoTAudio, 2);
std::stringstream ss;
w.Finish(ss);
std::string str = ss.str();
return std::vector<char>(str.begin(), str.end());
}
std::optional<SafeAudioBankReader> OoTAudioFactory::LoadAudioBank(std::vector<uint8_t>& buffer) {
auto audiobankSeg = Companion::Instance->GetFileOffsetFromSegmentedAddr(1);
if (!audiobankSeg.has_value()) {
SPDLOG_ERROR("OoTAudioFactory: Audiobank segment not found");
return std::nullopt;
}
uint32_t bankOff = audiobankSeg.value();
uint32_t bankSize = std::min((uint32_t)0x40000, (uint32_t)(buffer.size() - bankOff));
return SafeAudioBankReader(std::vector<uint8_t>(buffer.begin() + bankOff, buffer.begin() + bankOff + bankSize));
}
std::optional<std::shared_ptr<IParsedData>> OoTAudioFactory::parse(std::vector<uint8_t>& buffer, YAML::Node& node) {
auto data = std::make_shared<OoTAudioData>();
data->mMainEntry = BuildMainAudioHeader();
// Decompress the code segment (segment 128)
auto codeDecoded = Decompressor::AutoDecode(
node["offset"].as<uint32_t>(),
0x200000, // max code segment size
buffer);
// Parse audio tables from code segment at YAML-specified offsets
const size_t codeSize = codeDecoded.segment.size;
auto seqTable =
ParseAudioTable(codeDecoded.segment.data, codeSize, GetSafeNode<uint32_t>(node, "sequence_table_offset"));
auto fontTable =
ParseAudioTable(codeDecoded.segment.data, codeSize, GetSafeNode<uint32_t>(node, "sound_font_table_offset"));
auto sampleBankTable =
ParseAudioTable(codeDecoded.segment.data, codeSize, GetSafeNode<uint32_t>(node, "sample_bank_table_offset"));
auto seqFontMap = ParseSequenceFontTable(codeDecoded.segment.data, codeSize,
GetSafeNode<uint32_t>(node, "sequence_font_table_offset"),
seqTable.size());
SPDLOG_INFO("OoTAudioFactory: {} sequences, {} fonts, {} sample banks",
seqTable.size(), fontTable.size(), sampleBankTable.size());
AudioSequenceWriter seqWriter;
if (!seqWriter.Extract(buffer, node, seqTable, seqFontMap)) {
return data;
}
auto audioBank = LoadAudioBank(buffer);
if (!audioBank.has_value()) {
return data;
}
std::map<uint32_t, SampleInfo> sampleMap;
AudioSampleWriter sampleWriter;
if (!sampleWriter.Extract(buffer, node, audioBank.value(), fontTable, sampleBankTable, sampleMap)) {
return data;
}
AudioFontWriter fontWriter;
fontWriter.Extract(node, audioBank.value(), fontTable, sampleBankTable, sampleMap);
return data;
}
ExportResult OoTAudioBinaryExporter::Export(std::ostream& write, std::shared_ptr<IParsedData> raw,
std::string& entryName, YAML::Node& node, std::string* replacement) {
auto audio = std::static_pointer_cast<OoTAudioData>(raw);
write.write(audio->mMainEntry.data(), audio->mMainEntry.size());
return std::nullopt;
}
} // namespace OoT
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