mirror of
https://github.com/getcompanion-ai/co-mono.git
synced 2026-04-15 13:03:42 +00:00
fix(pi-dosbox): use post-init FS mounting instead of bundle.extract
bundle.extract() uses XMLHttpRequest which doesn't exist in Node.js. Reverted to writing files directly to Emscripten FS after DOSBox init. jsdos mounts C: to /home/web_user by default.
This commit is contained in:
Mario Zechner
parent
935417cff1
commit
29e6c13c03
1 changed files with 50 additions and 96 deletions
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@ -36,6 +36,20 @@ export interface DosboxState {
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isGraphicsMode: boolean;
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}
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// Emscripten FS type
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interface EmscriptenFS {
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mkdir(path: string): void;
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writeFile(path: string, data: Uint8Array | Buffer): void;
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readFile(path: string): Uint8Array;
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readdir(path: string): string[];
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unlink(path: string): void;
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}
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interface EmscriptenModule {
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FS: EmscriptenFS;
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_rescanFilesystem?: () => void;
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}
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export class DosboxInstance {
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private static instance: DosboxInstance | null = null;
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@ -79,7 +93,8 @@ export class DosboxInstance {
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const bundle = await this.createBundle(emu);
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this.ci = await emu.dosboxDirect(bundle);
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// QBasic files are included in the bundle, no post-init mount needed
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// Mount QBasic files after DOSBox starts
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await this.mountQBasic();
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const events = this.ci.events();
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@ -120,120 +135,59 @@ export class DosboxInstance {
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private async createBundle(emu: Emulators): Promise<Uint8Array> {
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const bundle = await emu.bundle();
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// Add QBasic files to the bundle
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// We'll create a zip and include it
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await this.addQBasicToBundle(bundle);
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// Set up autoexec to show what's available
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// Simple autoexec - we mount files to /home/web_user which maps to C:
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bundle.autoexec(
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"@echo off",
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"c:",
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"cls",
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"echo QuickBASIC 4.5 is at C:\\QB",
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"echo.",
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"echo Type: CD QB",
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"echo Then: QB.EXE",
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"echo.",
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"dir",
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);
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return bundle.toUint8Array(true);
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}
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private async addQBasicToBundle(bundle: Awaited<ReturnType<Emulators["bundle"]>>): Promise<void> {
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// Read QBasic files and create a zip data URL
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private async mountQBasic(): Promise<void> {
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if (!this.ci) return;
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// Access Emscripten module
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const transport = (this.ci as unknown as { transport: { module: EmscriptenModule } }).transport;
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const Module = transport.module;
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const FS = Module.FS;
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// jsdos mounts C: to /home/web_user by default
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// Let's verify and find the correct path
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const mountPath = "/home/web_user";
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// Create QB directory
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const qbPath = `${mountPath}/QB`;
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try {
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FS.mkdir(qbPath);
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} catch {
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/* exists */
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}
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// Read QBasic files from the extension directory
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const qbasicDir = join(__dirname, "..", "qbasic");
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const { readdirSync, readFileSync } = await import("node:fs");
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const files = readdirSync(qbasicDir).filter((f) => !f.startsWith("."));
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// Create a simple zip structure
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const zipParts: Buffer[] = [];
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const centralDir: Buffer[] = [];
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let offset = 0;
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const files = readdirSync(qbasicDir);
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for (const file of files) {
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const data = readFileSync(join(qbasicDir, file));
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const fileName = `QB/${file.toUpperCase()}`;
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const fileNameBuf = Buffer.from(fileName, "utf-8");
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// Local file header
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const localHeader = Buffer.alloc(30 + fileNameBuf.length);
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localHeader.writeUInt32LE(0x04034b50, 0); // signature
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localHeader.writeUInt16LE(20, 4); // version needed
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localHeader.writeUInt16LE(0, 6); // flags
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localHeader.writeUInt16LE(0, 8); // compression (none)
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localHeader.writeUInt16LE(0, 10); // mod time
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localHeader.writeUInt16LE(0, 12); // mod date
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localHeader.writeUInt32LE(this.crc32Buf(data), 14); // crc32
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localHeader.writeUInt32LE(data.length, 18); // compressed size
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localHeader.writeUInt32LE(data.length, 22); // uncompressed size
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localHeader.writeUInt16LE(fileNameBuf.length, 26); // filename length
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localHeader.writeUInt16LE(0, 28); // extra field length
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fileNameBuf.copy(localHeader, 30);
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zipParts.push(localHeader);
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zipParts.push(data);
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// Central directory entry
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const cdEntry = Buffer.alloc(46 + fileNameBuf.length);
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cdEntry.writeUInt32LE(0x02014b50, 0); // signature
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cdEntry.writeUInt16LE(20, 4); // version made by
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cdEntry.writeUInt16LE(20, 6); // version needed
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cdEntry.writeUInt16LE(0, 8); // flags
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cdEntry.writeUInt16LE(0, 10); // compression
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cdEntry.writeUInt16LE(0, 12); // mod time
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cdEntry.writeUInt16LE(0, 14); // mod date
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cdEntry.writeUInt32LE(this.crc32Buf(data), 16); // crc32
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cdEntry.writeUInt32LE(data.length, 20); // compressed size
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cdEntry.writeUInt32LE(data.length, 24); // uncompressed size
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cdEntry.writeUInt16LE(fileNameBuf.length, 28); // filename length
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cdEntry.writeUInt16LE(0, 30); // extra field length
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cdEntry.writeUInt16LE(0, 32); // comment length
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cdEntry.writeUInt16LE(0, 34); // disk number start
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cdEntry.writeUInt16LE(0, 36); // internal attrs
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cdEntry.writeUInt32LE(0, 38); // external attrs
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cdEntry.writeUInt32LE(offset, 42); // relative offset
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fileNameBuf.copy(cdEntry, 46);
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centralDir.push(cdEntry);
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offset += localHeader.length + data.length;
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if (file.startsWith(".")) continue;
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try {
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const data = readFileSync(join(qbasicDir, file));
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FS.writeFile(`${qbPath}/${file.toUpperCase()}`, data);
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} catch (e) {
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console.error(`Failed to mount ${file}:`, e);
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}
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}
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const cdOffset = offset;
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const cdSize = centralDir.reduce((sum, buf) => sum + buf.length, 0);
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// End of central directory
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const eocd = Buffer.alloc(22);
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eocd.writeUInt32LE(0x06054b50, 0); // signature
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eocd.writeUInt16LE(0, 4); // disk number
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eocd.writeUInt16LE(0, 6); // disk with CD
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eocd.writeUInt16LE(files.length, 8); // entries on disk
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eocd.writeUInt16LE(files.length, 10); // total entries
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eocd.writeUInt32LE(cdSize, 12); // CD size
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eocd.writeUInt32LE(cdOffset, 16); // CD offset
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eocd.writeUInt16LE(0, 20); // comment length
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const zipBuffer = Buffer.concat([...zipParts, ...centralDir, eocd]);
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const base64 = zipBuffer.toString("base64");
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const dataUrl = `data:application/zip;base64,${base64}`;
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// Extract to root of C: drive
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bundle.extract(dataUrl, "/", "zip");
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}
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private crc32Buf(buffer: Buffer): number {
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let crc = 0xffffffff;
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for (const byte of buffer) {
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crc = CRC_TABLE[(crc ^ byte) & 0xff] ^ (crc >>> 8);
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// Rescan so DOS sees the new files
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if (Module._rescanFilesystem) {
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Module._rescanFilesystem();
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}
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return (crc ^ 0xffffffff) >>> 0;
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}
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// No longer needed - files are in bundle
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// biome-ignore lint/correctness/noUnusedPrivateClassMembers: Keeping for reference
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private async mountQBasicPostInit(): Promise<void> {
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// This approach didn't work - keeping for reference
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}
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private expandRgbToRgba(rgb: Uint8Array): Uint8Array {
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