diff options
Diffstat (limited to 'tools/src/asset_processor/assets/midi.cpp')
| -rw-r--r-- | tools/src/asset_processor/assets/midi.cpp | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/tools/src/asset_processor/assets/midi.cpp b/tools/src/asset_processor/assets/midi.cpp new file mode 100644 index 00000000..6444b05e --- /dev/null +++ b/tools/src/asset_processor/assets/midi.cpp @@ -0,0 +1,156 @@ +#include "midi.h" +#include "reader.h" +#include "util.h" +#include <filesystem> +#include <iostream> +#include <fstream> +#include <nlohmann/json.hpp> + +extern std::string gBaseromPath; + +std::filesystem::path MidiAsset::generateAssetPath() { + std::filesystem::path path = this->path; + return path.replace_extension(".mid"); +} + +std::filesystem::path MidiAsset::generateBuildPath() { + std::filesystem::path path = this->path; + return path.replace_extension(".s"); +} + +void MidiAsset::extractBinary(const std::vector<char>& baserom) { + // Custom extraction as we need a label in the middle. + std::string label = this->path.stem(); + + std::filesystem::path tracksPath = this->path; + tracksPath.replace_filename(label + "_tracks.bin"); + std::filesystem::path headerPath = this->path; + headerPath.replace_filename(label + "_header.bin"); + + int headerOffset = this->asset["options"]["headerOffset"]; + + // Extract tracks + { + auto first = baserom.begin() + this->start; + auto last = baserom.begin() + this->start + headerOffset; + std::vector<char> data(first, last); + std::fstream file(tracksPath, std::ios::out | std::ios::binary); + file.write(&data[0], data.size()); + file.close(); + } + // Extract header + { + auto first = baserom.begin() + this->start + headerOffset; + auto last = baserom.begin() + this->start + this->size; + std::vector<char> data(first, last); + std::fstream file(headerPath, std::ios::out | std::ios::binary); + file.write(&data[0], data.size()); + file.close(); + } + + // Create dummy .s file. + std::ofstream out(this->buildPath); + out << "\t.incbin " << tracksPath << "\n"; + out << label << "::\n"; + out << "\t.incbin " << headerPath << "\n"; + out.close(); +} + +void MidiAsset::parseOptions(std::vector<std::string>& commonParams, std::vector<std::string>& agb2midParams) { + bool exactGateTime = true; + + for (const auto& it : this->asset["options"].items()) { + const std::string& key = it.key(); + if (key == "group" || key == "G") { + commonParams.push_back("-G"); + commonParams.push_back(to_string(it.value())); + } else if (key == "priority" || key == "P") { + commonParams.push_back("-P"); + commonParams.push_back(to_string(it.value())); + } else if (key == "reverb" || key == "R") { + commonParams.push_back("-R"); + commonParams.push_back(to_string(it.value())); + } else if (key == "nominator") { + agb2midParams.push_back("-n"); + agb2midParams.push_back(to_string(it.value())); + } else if (key == "denominator") { + agb2midParams.push_back("-d"); + agb2midParams.push_back(to_string(it.value())); + } else if (key == "timeChanges") { + const nlohmann::json& value = it.value(); + if (value.is_array()) { + // Multiple time changes + for (const auto& change : value) { + agb2midParams.push_back("-t"); + agb2midParams.push_back(to_string(change["nominator"])); + agb2midParams.push_back(to_string(change["denominator"])); + agb2midParams.push_back(to_string(change["time"])); + } + } else { + agb2midParams.push_back("-t"); + agb2midParams.push_back(to_string(value["nominator"])); + agb2midParams.push_back(to_string(value["denominator"])); + agb2midParams.push_back(to_string(value["time"])); + } + } else if (key == "exactGateTime") { + if (it.value().get<int>() == 1) { + exactGateTime = true; + } else { + exactGateTime = false; + } + } else if (key == "headerOffset") { + // ignore here + } else { + commonParams.push_back("-" + key); + commonParams.push_back(to_string(it.value())); + } + } + + if (exactGateTime) { + commonParams.push_back("-E"); + } +} + +void MidiAsset::convertToHumanReadable(const std::vector<char>& baserom) { + (void)baserom; + + // Convert the options + std::vector<std::string> commonParams; + std::vector<std::string> agb2midParams; + this->parseOptions(commonParams, agb2midParams); + + int headerOffset = this->asset["options"]["headerOffset"]; + + std::filesystem::path toolPath = "tools"; + std::vector<std::string> cmd; + cmd.push_back(toolPath / "agb2mid" / "agb2mid"); + cmd.push_back(gBaseromPath); + cmd.push_back(string_format("0x%x", this->start + headerOffset)); + cmd.push_back(gBaseromPath); // TODO deduplicate? + cmd.push_back(this->assetPath); + cmd.insert(cmd.end(), commonParams.begin(), commonParams.end()); + cmd.insert(cmd.end(), agb2midParams.begin(), agb2midParams.end()); + check_call(cmd); + + // We also need to build the mid to an s file here, so we get shiftability after converting. + cmd.clear(); + cmd.push_back(toolPath / "mid2agb" / "mid2agb"); + cmd.push_back(this->assetPath); + cmd.push_back(this->buildPath); + cmd.insert(cmd.end(), commonParams.begin(), commonParams.end()); + check_call(cmd); +} + +void MidiAsset::buildToBinary() { + // Convert the options + std::vector<std::string> commonParams; + std::vector<std::string> agb2midParams; + this->parseOptions(commonParams, agb2midParams); + std::filesystem::path toolPath = "tools"; + std::vector<std::string> cmd; + cmd.push_back(toolPath / "mid2agb" / "mid2agb"); + cmd.push_back(this->assetPath); + cmd.push_back(this->buildPath); + cmd.insert(cmd.end(), commonParams.begin(), commonParams.end()); + check_call(cmd); +}
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