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Merge pull request #10 from lucidcode/illuminate
Add RAW vision channel and improve sound quality
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Halovision/Dependencies/lucidcode.LucidScribe.Interface.Illuminated.dll
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,168 @@ | ||
| using System; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Collections; | ||
|
|
||
| namespace lucidcode.LucidScribe.Plugin.Halovision | ||
| { | ||
| public class FifoStream : Stream | ||
| { | ||
| private const int BlockSize = 65536; | ||
| private const int MaxBlocksInCache = (3 * 1024 * 1024) / BlockSize; | ||
|
|
||
| private int m_Size; | ||
| private int m_RPos; | ||
| private int m_WPos; | ||
| private Stack m_UsedBlocks = new Stack(); | ||
| private ArrayList m_Blocks = new ArrayList(); | ||
|
|
||
| private byte[] AllocBlock() | ||
| { | ||
| byte[] Result = null; | ||
| Result = m_UsedBlocks.Count > 0 ? (byte[])m_UsedBlocks.Pop() : new byte[BlockSize]; | ||
| return Result; | ||
| } | ||
| private void FreeBlock(byte[] block) | ||
| { | ||
| if (m_UsedBlocks.Count < MaxBlocksInCache) | ||
| m_UsedBlocks.Push(block); | ||
| } | ||
| private byte[] GetWBlock() | ||
| { | ||
| byte[] Result = null; | ||
| if (m_WPos < BlockSize && m_Blocks.Count > 0) | ||
| Result = (byte[])m_Blocks[m_Blocks.Count - 1]; | ||
| else | ||
| { | ||
| Result = AllocBlock(); | ||
| m_Blocks.Add(Result); | ||
| m_WPos = 0; | ||
| } | ||
| return Result; | ||
| } | ||
|
|
||
| // Stream members | ||
| public override bool CanRead | ||
| { | ||
| get { return true; } | ||
| } | ||
| public override bool CanSeek | ||
| { | ||
| get { return false; } | ||
| } | ||
| public override bool CanWrite | ||
| { | ||
| get { return true; } | ||
| } | ||
| public override long Length | ||
| { | ||
| get | ||
| { | ||
| lock (this) | ||
| return m_Size; | ||
| } | ||
| } | ||
| public override long Position | ||
| { | ||
| get { throw new InvalidOperationException(); } | ||
| set { throw new InvalidOperationException(); } | ||
| } | ||
| public override void Close() | ||
| { | ||
| Flush(); | ||
| } | ||
| public override void Flush() | ||
| { | ||
| lock (this) | ||
| { | ||
| foreach (byte[] block in m_Blocks) | ||
| FreeBlock(block); | ||
| m_Blocks.Clear(); | ||
| m_RPos = 0; | ||
| m_WPos = 0; | ||
| m_Size = 0; | ||
| } | ||
| } | ||
| public override void SetLength(long len) | ||
| { | ||
| throw new InvalidOperationException(); | ||
| } | ||
| public override long Seek(long pos, SeekOrigin o) | ||
| { | ||
| throw new InvalidOperationException(); | ||
| } | ||
| public override int Read(byte[] buf, int ofs, int count) | ||
| { | ||
| lock (this) | ||
| { | ||
| int Result = Peek(buf, ofs, count); | ||
| Advance(Result); | ||
| return Result; | ||
| } | ||
| } | ||
| public override void Write(byte[] buf, int ofs, int count) | ||
| { | ||
| lock (this) | ||
| { | ||
| int Left = count; | ||
| while (Left > 0) | ||
| { | ||
| int ToWrite = Math.Min(BlockSize - m_WPos, Left); | ||
| Array.Copy(buf, ofs + count - Left, GetWBlock(), m_WPos, ToWrite); | ||
| m_WPos += ToWrite; | ||
| Left -= ToWrite; | ||
| } | ||
| m_Size += count; | ||
| } | ||
| } | ||
|
|
||
| // extra stuff | ||
| public int Advance(int count) | ||
| { | ||
| lock (this) | ||
| { | ||
| int SizeLeft = count; | ||
| while (SizeLeft > 0 && m_Size > 0) | ||
| { | ||
| if (m_RPos == BlockSize) | ||
| { | ||
| m_RPos = 0; | ||
| FreeBlock((byte[])m_Blocks[0]); | ||
| m_Blocks.RemoveAt(0); | ||
| } | ||
| int ToFeed = m_Blocks.Count == 1 ? Math.Min(m_WPos - m_RPos, SizeLeft) : Math.Min(BlockSize - m_RPos, SizeLeft); | ||
| m_RPos += ToFeed; | ||
| SizeLeft -= ToFeed; | ||
| m_Size -= ToFeed; | ||
| } | ||
| return count - SizeLeft; | ||
| } | ||
| } | ||
| public int Peek(byte[] buf, int ofs, int count) | ||
| { | ||
| lock (this) | ||
| { | ||
| int SizeLeft = count; | ||
| int TempBlockPos = m_RPos; | ||
| int TempSize = m_Size; | ||
|
|
||
| int CurrentBlock = 0; | ||
| while (SizeLeft > 0 && TempSize > 0) | ||
| { | ||
| if (TempBlockPos == BlockSize) | ||
| { | ||
| TempBlockPos = 0; | ||
| CurrentBlock++; | ||
| } | ||
| int Upper = CurrentBlock < m_Blocks.Count - 1 ? BlockSize : m_WPos; | ||
| int ToFeed = Math.Min(Upper - TempBlockPos, SizeLeft); | ||
| Array.Copy((byte[])m_Blocks[CurrentBlock], TempBlockPos, buf, ofs + count - SizeLeft, ToFeed); | ||
| SizeLeft -= ToFeed; | ||
| TempBlockPos += ToFeed; | ||
| TempSize -= ToFeed; | ||
| } | ||
| return count - SizeLeft; | ||
| } | ||
| } | ||
| } | ||
| } |
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