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, readonly, display="XMem Signature"];
    xmem_flags = xmem_flags [ui, readonly, display="XMem Flags"];

    // File size info
    compressed_size = size();
    compressed_size = compressed_size [ui, readonly, display="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, readonly, display="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, readonly, display="Decompressed Signature"];

        is_asura = (dec_sig == "Asura   ");
        is_asura = is_asura [ui, readonly, display="Is Asura Archive"];

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