XPlor/definitions/asura/xbox360.xscript

// Xbox 360 compressed archive (Sniper Elite, AVP, etc.)
// XMemCompressed data containing Asura archive

type xbox360 [root, display="Xbox 360 Archive"] byteorder BE
{
    criteria {
        require _ext == "xbox360";
        // XMemCompress signature: 0x0FF512ED or 0x0FF512EE
        sig1 = u32at(0);
        require (sig1 == 0x0FF512ED || sig1 == 0x0FF512EE);
    }

    // Read signature info for display
    u32 xmem_signature;
    u32 xmem_flags;
    xmem_signature = xmem_signature;

    ui("xmem_signature", "XMem Signature");
    xmem_flags = xmem_flags;

    ui("xmem_flags", "XMem Flags");

    // File size info
    compressed_size = size();
    compressed_size = compressed_size;

    ui("compressed_size", "Compressed Size");

    // Read entire file - decompressor handles header parsing
    seek(0);
    compressed_data = read(EOF);

    // Decompress with XMemDecompress (handles header internally)
    decompressed_data = compressed_data |> xmem;

    decompressed_size = len(decompressed_data);
    decompressed_size = decompressed_size;

    ui("decompressed_size", "Decompressed Size");

    // Export decompressed data for inspection
    write_file(_basename + ".asura", decompressed_data);

    // Check decompressed data signature
    if (decompressed_size > 8) {
        dec_sig = ascii(bytesof(decompressed_data, 0, 8));
        dec_sig = dec_sig;

        ui("dec_sig", "Decompressed Signature");

        is_asura = (dec_sig == "Asura   ");
        is_asura = is_asura;

        ui("is_asura", "Is Asura Archive");

        if (is_asura) {
            archive = decompressed_data |> parse asura_archive;
            ui("archive", "Archive Contents");
        }
    }
}