Method writeEntry

packages/alphatab/src/zip/ZipWriter.ts:45–91

(entry: ZipEntry)

    }

    public writeEntry(entry: ZipEntry) {
        // 4.3.7 local file header
        const compressionMode = ZipEntry.CompressionMethodDeflate;

        const compressedData = ByteBuffer.empty();
        const crc32 = this._compress(compressedData, entry.data, compressionMode);
        const compressedDataArray = compressedData.toArray();
        const directoryHeader = new ZipCentralDirectoryHeader(
            entry,
            crc32,
            this._data.bytesWritten,
            compressionMode,
            compressedData.length
        );
        this._centralDirectoryHeaders.push(directoryHeader);

        // Signature
        IOHelper.writeInt32LE(this._data, ZipEntry.LocalFileHeaderSignature);
        // Version
        IOHelper.writeUInt16LE(this._data, 10);
        // Flags
        IOHelper.writeUInt16LE(this._data, 0x0800);
        // Compression
        IOHelper.writeUInt16LE(this._data, compressionMode);
        // last mod file time
        IOHelper.writeInt16LE(this._data, 0);
        // last mod file date
        IOHelper.writeInt16LE(this._data, 0);
        // crc-32
        IOHelper.writeInt32LE(this._data, crc32);
        // compressed size
        IOHelper.writeInt32LE(this._data, compressedDataArray.length);
        // uncompressed size
        IOHelper.writeInt32LE(this._data, entry.data.length);
        // file name length
        IOHelper.writeInt16LE(this._data, entry.fullName.length);
        // extra field length
        IOHelper.writeInt16LE(this._data, 0);
        // file name (variable size)
        const fileNameBuffer = IOHelper.stringToBytes(entry.fullName);
        this._data.write(fileNameBuffer, 0, fileNameBuffer.length);
        // extra field (variable size)
        // <empty>

        // 4.3.8 File Data
        this._data.write(compressedDataArray, 0, compressedDataArray.length);
    }

    private _compress(output: IWriteable, data: Uint8Array, compressionMode: number): number {
        if (compressionMode !== ZipEntry.CompressionMethodDeflate) {