private static void write(Chunk chunk, StreamAccessor accessor)
{
accessor.Write(chunk.name, EncodingType.CC4);
StreamAccessor ac2 = new StreamAccessor(accessor.WriteSubStream(4));
long pos0 = accessor.Position;
// 内容
if (chunk.content != null)
{
if (chunk.content is byte[])
{
accessor.Write((byte[])chunk.content);
}
else if (chunk.content is System.IO.Stream)
{
accessor.WriteStream((System.IO.Stream)chunk.content);
}
else
{
RiffChunkReadWriteAttribute.Write(chunk.content, accessor);
}
}
else if (chunk._data != null)
{
accessor.Write(chunk._data);
}
else if (chunk._stream != null)
{
accessor.WriteStream(chunk.Stream);
}
ac2.Write(checked ((uint)(accessor.Position - pos0)), EncodingType.U4);
ac2.Stream.Close();
}
internal static void Write(object value, StreamAccessor accessor)
{
System.Type type = value.GetType();
RiffChunkReadWriteAttribute attr = GetAttribute(type);
const System.Reflection.BindingFlags BF = System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic;
System.Reflection.MethodInfo m = type.GetMethod(attr.write, BF, null, new System.Type[] { type, typeof(StreamAccessor) }, read_mods);
m.Invoke(null, new object[] { value, accessor });
}
/// <summary>
/// Chunk の内容を指定した型のインスタンスとして取得します。
/// </summary>
/// <typeparam name="T">取得するインスタンスの型を指定します。以下の物を指定できます。
/// 1. <see cref="byte"/>[]
/// 2. <see cref="System.IO.Stream"/>
/// 3. RiffChunkReadWriteAttribute 属性を適用した型
/// </typeparam>
/// <returns>指定した型のインスタンスを返します。</returns>
public T GetContent <T>()
{
if (typeof(T) == typeof(byte[]))
{
return((T)(object)this.Data);
}
if (typeof(T) == typeof(System.IO.Stream))
{
return((T)(object)this.Stream);
}
return((T)RiffChunkReadWriteAttribute.Read(typeof(T), new StreamAccessor(this.Stream)));
}
private static RiffChunkReadWriteAttribute GetAttribute(System.Type type)
{
if (!attr_cache.ContainsKey(type))
{
RiffChunkReadWriteAttribute[] attrs
= (RiffChunkReadWriteAttribute[])type.GetCustomAttributes(typeof(RiffChunkReadWriteAttribute), false);
attr_cache[type] = attrs.Length == 0?null:attrs[0];
}
RiffChunkReadWriteAttribute attr = attr_cache[type];
if (attr == null)
{
throw new System.ApplicationException("指定した型を RIFF Chunk として読み書きする事は出来ません。");
}
return(attr);
}
internal static object Read(System.Type type, StreamAccessor accessor)
{
RiffChunkReadWriteAttribute attr = GetAttribute(type);
const System.Reflection.BindingFlags BF = System.Reflection.BindingFlags.Static | System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic;
System.Reflection.MethodInfo m = type.GetMethod(attr.read, BF, null, read_types, read_mods);
object ret = m.Invoke(null, new object[] { accessor });
if (ret == null)
{
throw new System.ApplicationException("RIFF Chunk 読込の為に呼び出したメソッドの返値が null です。");
}
return(ret);
}
