lifegpc/GARbro-crskycode
1
0
Fork 0
mirror of https://github.com/crskycode/GARbro.git synced 2026-07-08 01:30:18 +08:00
Code Issues Packages Projects Releases Wiki Activity

(InputProxyStream): generalization of input filters.

Browse Source
This commit is contained in:
morkt
2016-07-02 06:06:32 +04:00
parent cc22f988c6
commit 883ee94a7e
8 changed files with 39 additions and 174 deletions
Download Patch File Download Diff File Expand all files Collapse all files

40
ArcFormats/Entis/AudioMIO.cs
View File

@@ -159,26 +159,22 @@ namespace GameRes.Formats.Entis
public uint Size;
}
class ChunkStream : Stream
class ChunkStream : InputProxyStream
{
Stream m_source;
MioChunk m_chunk;
public ChunkStream (Stream source, MioChunk chunk)
public ChunkStream (Stream source, MioChunk chunk) : base (source, true)
{
m_source = source;
m_chunk = chunk;
m_source.Position = m_chunk.Position;
BaseStream.Position = m_chunk.Position;
}
public override bool CanRead { get { return true; } }
public override bool CanWrite { get { return false; } }
public override bool CanSeek { get { return m_source.CanSeek; } }
public override long Length { get { return m_chunk.Size; } }
public override long Position
{
get { return m_source.Position-m_chunk.Position; }
get { return BaseStream.Position-m_chunk.Position; }
set { Seek (value, SeekOrigin.Begin); }
}
@@ -187,43 +183,23 @@ namespace GameRes.Formats.Entis
if (origin == SeekOrigin.Begin)
offset += m_chunk.Position;
else if (origin == SeekOrigin.Current)
offset += m_source.Position;
offset += BaseStream.Position;
else
offset += m_chunk.Position + m_chunk.Size;
if (offset < m_chunk.Position)
offset = m_chunk.Position;
m_source.Position = offset;
BaseStream.Position = offset;
return offset - m_chunk.Position;
}
public override void Flush()
{
m_source.Flush();
}
public override int Read (byte[] buf, int index, int count)
{
long remaining = (m_chunk.Position + m_chunk.Size) - m_source.Position;
long remaining = (m_chunk.Position + m_chunk.Size) - BaseStream.Position;
if (count > remaining)
count = (int)remaining;
if (count <= 0)
return 0;
return m_source.Read (buf, index, count);
}
public override void SetLength (long length)
{
throw new System.NotSupportedException ();
}
public override void Write (byte[] buffer, int offset, int count)
{
throw new System.NotSupportedException ();
}
public override void WriteByte (byte value)
{
throw new System.NotSupportedException ();
return BaseStream.Read (buf, index, count);
}
}