vgm-conv/dist/converter/opl-to-opl2-converter.js

Chip-type and clock converter for VGM.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.OPLToOPL2Converter = void 0;
const vgm_converter_1 = require("./vgm-converter");
const vgm_parser_1 = require("vgm-parser");
function type2cmd(type) {
    switch (type) {
        case "ymf262":
            return 0x5e;
        case "ym3812":
        default:
            return 0x5a;
    }
}
class OPLToOPL2Converter extends vgm_converter_1.VGMConverter {
    _type;
    _target;
    constructor(from, to, opts) {
        super(from, { chip: to.chip, index: from.index, clock: to.chip === "ymf262" ? 4 : 1, relativeClock: true });
        this._type = to.chip;
        this._target = type2cmd(this._type);
    }
    convertCommand(cmd) {
        if (cmd instanceof vgm_parser_1.VGMWriteDataCommand &&
            (cmd.chip === "ym3526" || cmd.chip === "y8950") &&
            cmd.index === this.from.index) {
            return [cmd.copy({ target: this._target })];
        }
        return [cmd];
    }
}
exports.OPLToOPL2Converter = OPLToOPL2Converter;