Exemplo n.º 1
0
        /// <summary>
        /// Creates a new instance of a LuigiDataBlock by inflating it from a BinaryReader.
        /// </summary>
        /// <param name="reader">The binary reader containing the data to deserialize to create the object.</param>
        /// <returns>A new instance of a LuigiDataBlock.</returns>
        /// <remarks>It is assumed that the reader is currently positioned at the beginning of a serialized LUIGI data block.</remarks>
        public static LuigiDataBlock Inflate(INTV.Core.Utility.BinaryReader reader)
        {
            LuigiDataBlock dataBlock = null;
            var            blockType = (LuigiDataBlockType)reader.ReadByte();

            switch (blockType)
            {
            case LuigiDataBlockType.SetScrambleKey:
                dataBlock = new LuigiScrambleKeyBlock();
                break;

            case LuigiDataBlockType.MemoryMapAndPermissionsTable:
                dataBlock = new LuigiMemoryMapAndPermissionsTableBlock();
                break;

            case LuigiDataBlockType.DataHunk:
                dataBlock = new LuigiDataHunkBlock();
                break;

            case LuigiDataBlockType.Metadata:
                dataBlock = new LuigiMetadataBlock();
                break;

            case LuigiDataBlockType.EndOfFile:
                dataBlock = new LuigiEndOfFileBlock();
                break;

            default:
                dataBlock = new LuigiDataBlock((LuigiDataBlockType)blockType);
                break;
            }
            dataBlock._deserializeByteCount  = BlockTypeSize;
            dataBlock._deserializeByteCount += dataBlock.Deserialize(reader);
            return(dataBlock);
        }
Exemplo n.º 2
0
        /// <summary>
        /// Creates a new instance of a LuigiDataBlock by inflating it from a Stream.
        /// </summary>
        /// <param name="stream">The stream containing the data to deserialize to create the object.</param>
        /// <returns>A new instance of a LuigiDataBlock.</returns>
        public static LuigiDataBlock Inflate(System.IO.Stream stream)
        {
            LuigiDataBlock dataBlock = null;

            using (var reader = new INTV.Core.Utility.BinaryReader(stream))
            {
                dataBlock = Inflate(reader);
            }
            return(dataBlock);
        }
Exemplo n.º 3
0
        /// <summary>
        /// Locates the first data block of the requested type in the ROM.
        /// </summary>
        /// <typeparam name="T">The type of LUIGI block to locate.</typeparam>
        /// <returns>The data block, or <c>null</c> if no block of the requested type is in the ROM.</returns>
        internal T LocateDataBlock <T>() where T : LuigiDataBlock
        {
            var dataBlock = default(T);

            if (StreamUtilities.FileExists(RomPath))
            {
                using (var file = StreamUtilities.OpenFileStream(RomPath))
                {
                    if (file != null)
                    {
                        if (file.Length > 0)
                        {
                            var desiredBlockType = LuigiDataBlock.GetBlockType <T>();
                            var luigiHeader      = LuigiFileHeader.Inflate(file);
                            var bytesRead        = luigiHeader.DeserializeByteCount;

                            // Start looking for desired block immediately after header.
                            var block = LuigiDataBlock.Inflate(file);
                            bytesRead += block.DeserializeByteCount;
                            if (StopIfScrambleKeyBlockFound(desiredBlockType, block.Type))
                            {
                                // Stop looking. If we hit the scramble key, there's nothing more to be looked at.
                                bytesRead = (int)file.Length;
                            }
                            while ((bytesRead < file.Length) && (block.Type != desiredBlockType) && (block.Type != LuigiDataBlockType.EndOfFile))
                            {
                                block      = LuigiDataBlock.Inflate(file);
                                bytesRead += block.DeserializeByteCount;
                                if (StopIfScrambleKeyBlockFound(desiredBlockType, block.Type))
                                {
                                    break;
                                }
                            }
                            if (block.Type == desiredBlockType)
                            {
                                dataBlock = block as T;
                            }
                        }
                    }
                }
            }
            return(dataBlock);
        }