BinarySerializationReader.cs

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// Copyright (c) 2014 Silicon Studio Corp. (http://siliconstudio.co.jp)
// This file is distributed under GPL v3. See LICENSE.md for details.
using System;
using System.IO;
using SiliconStudio.Core.IO;

namespace SiliconStudio.Core.Serialization
{
    /// <summary>
    /// Implements <see cref="SerializationStream"/> as a binary reader.
    /// </summary>
    public class BinarySerializationReader : SerializationStream
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="BinarySerializationReader"/> class.
        /// </summary>
        /// <param name="inputStream">The input stream.</param>
        public BinarySerializationReader(Stream inputStream)
        {
            Reader = new BinaryReader(inputStream);
            NativeStream = inputStream.ToNativeStream();
        }

        private BinaryReader Reader { get; set; }

        /// <inheritdoc />
        public override void Serialize(ref bool value)
        {
            int result = NativeStream.ReadByte();
            if (result == -1)
                throw new EndOfStreamException();
            value = result != 0;
        }

        /// <inheritdoc />
        public unsafe override void Serialize(ref float value)
        {
            fixed (float* valuePtr = &value)
                *((uint*)valuePtr) = NativeStream.ReadUInt32();
        }

        /// <inheritdoc />
        public unsafe override void Serialize(ref double value)
        {
            fixed (double* valuePtr = &value)
                *((ulong*)valuePtr) = NativeStream.ReadUInt64();
        }

        /// <inheritdoc />
        public override void Serialize(ref short value)
        {
            value = (short)NativeStream.ReadUInt16();
        }

        /// <inheritdoc />
        public override void Serialize(ref int value)
        {
            value = (int)NativeStream.ReadUInt32();
        }

        /// <inheritdoc />
        public override void Serialize(ref long value)
        {
            value = (long)NativeStream.ReadUInt64();
        }

        /// <inheritdoc />
        public override void Serialize(ref ushort value)
        {
            value = NativeStream.ReadUInt16();
        }

        /// <inheritdoc />
        public override void Serialize(ref uint value)
        {
            value = NativeStream.ReadUInt32();
        }

        /// <inheritdoc />
        public override void Serialize(ref ulong value)
        {
            value = NativeStream.ReadUInt64();
        }

        /// <inheritdoc />
        public override void Serialize(ref string value)
        {
            value = Reader.ReadString();
        }

        /// <inheritdoc />
        public override void Serialize(ref char value)
        {
            value = Reader.ReadChar();
        }

        /// <inheritdoc />
        public override void Serialize(ref byte value)
        {
            int result = NativeStream.ReadByte();
            if (result == -1)
                throw new EndOfStreamException();
            value = (byte)result;
        }

        /// <inheritdoc />
        public override void Serialize(ref sbyte value)
        {
            int result = NativeStream.ReadByte();
            if (result == -1)
                throw new EndOfStreamException();
            value = (sbyte)(byte)result;
        }

        /// <inheritdoc />
        public override void Serialize(byte[] values, int offset, int count)
        {
            Reader.Read(values, offset, count);
        }

        /// <inheritdoc/>
        public override void Serialize(IntPtr memory, int count)
        {
            NativeStream.Read(memory, count);
        }

        /// <inheritdoc />
        public override void Flush()
        {

        }
    }
}