Simplify SharpWave even more. (and fix a memory leak in C client)

ClassicalSharp.sln

@@ -1,6 +1,6 @@
 
-Microsoft Visual Studio Solution File, Format Version 11.00
-# Visual Studio 2010
+Microsoft Visual Studio Solution File, Format Version 10.00
+# Visual Studio 2008
 # SharpDevelop 4.4
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ClassicalSharp", "ClassicalSharp\ClassicalSharp.csproj", "{BEB1C785-5CAD-48FF-A886-876BF0A318D4}"
 EndProject

ClassicalSharp/Audio/AudioPlayer.Sounds.cs

@@ -3,7 +3,6 @@ using System;
 using System.Threading;
 using ClassicalSharp.Events;
 using SharpWave;
-using SharpWave.Codecs;
 
 namespace ClassicalSharp.Audio {
 	

ClassicalSharp/Audio/AudioPlayer.cs

@@ -3,7 +3,6 @@ using System;
 using System.IO;
 using System.Threading;
 using SharpWave;
-using SharpWave.Codecs.Vorbis;
 
 namespace ClassicalSharp.Audio {
 	
@@ -79,10 +78,9 @@ namespace ClassicalSharp.Audio {
 				
 				string path = Path.Combine("audio", file);
 				using (Stream fs = Platform.FileOpen(path)) {
-					OggContainer container = new OggContainer(fs);
 					try {
 						musicOut.SetVolume(game.MusicVolume / 100.0f);
-						musicOut.PlayStreaming(container);
+						musicOut.PlayStreaming(fs);
 					} catch (InvalidOperationException ex) {
 						HandleMusicError(ex);
 						try { musicOut.Dispose(); } catch { }

Launcher2/Patcher/SoundPatcher.cs

@@ -1,10 +1,9 @@
 // ClassicalSharp copyright 2014-2016 UnknownShadow200 | Licensed under MIT
-using System;
-using System.IO;
-using ClassicalSharp;
-using ClassicalSharp.Network;
-using SharpWave;
-using SharpWave.Codecs.Vorbis;
+using System;
+using System.IO;
+using ClassicalSharp;
+using ClassicalSharp.Network;
+using SharpWave;
 
 namespace Launcher.Patcher {
 	
@@ -60,25 +59,26 @@ namespace Launcher.Patcher {
 			string path = Path.Combine("audio", prefix + name + ".wav");
 			
 			using (Stream dst = Platform.FileCreate(path))
-				using (MemoryStream src = new MemoryStream(rawData)) 
+				using (MemoryStream src = new MemoryStream(rawData))
 			{
 				dst.SetLength(44);
-				RawOut output = new RawOut((FileStream)dst, true);
-				output.Create(1);
-				OggContainer container = new OggContainer(src);
-				output.PlayStreaming(container);
+				VorbisCodec codec = new VorbisCodec();
+				AudioFormat format = codec.ReadHeader(src);
+				
+				foreach (AudioChunk chunk in codec.StreamData(src)) {
+					dst.Write(chunk.Data, 0, chunk.Length);
+				}
 				
 				dst.Position = 0;
 				BinaryWriter w = new BinaryWriter(dst);
-				WriteWaveHeader(w, dst, output);
+				WriteWaveHeader(w, dst, format);
 			}
 		}
 		
-		void WriteWaveHeader(BinaryWriter w, Stream stream, RawOut data) {
+		void WriteWaveHeader(BinaryWriter w, Stream stream, AudioFormat format) {
 			WriteFourCC(w, "RIFF");
 			w.Write((int)(stream.Length - 8));
 			WriteFourCC(w, "WAVE");
-			AudioFormat format = data.Format;
 			
 			WriteFourCC(w, "fmt ");
 			w.Write(16);

SharpWave/Backends/AL.cs

@@ -44,9 +44,9 @@ namespace OpenTK.Audio.OpenAL {
 		public static extern void alGenBuffers(int n, uint* bids);
 		[DllImport(lib, CallingConvention = style)]
 		public static extern void alDeleteBuffers(int n, uint* bids);
-
 		[DllImport(lib, CallingConvention = style)]
 		public static extern void alBufferData(uint bid, ALFormat format, IntPtr buffer, int size, int freq);
+		
 		[DllImport(lib, CallingConvention = style)]
 		public static extern IntPtr alcCreateContext(IntPtr device, int* attrlist);
 		[DllImport(lib, CallingConvention = style)]
@@ -79,7 +79,6 @@ namespace OpenTK.Audio.OpenAL {
 	public enum ALError {
 		NoError = 0,
 		InvalidName = 0xA001,
-		IllegalEnum = 0xA002,
 		InvalidEnum = 0xA002,
 		InvalidValue = 0xA003,
 		InvalidOperation = 0xA004,

SharpWave/Backends/IAudioOutput.cs

@@ -2,8 +2,6 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Threading;
-using SharpWave.Codecs;
-using SharpWave.Containers;
 
 namespace SharpWave {
 	
@@ -15,6 +13,11 @@ namespace SharpWave {
 		}
 	}
 	
+	public sealed class AudioChunk {
+		public byte[] Data;
+		public int Length;
+	}
+	
 	public delegate void Action();
 	
 	public abstract class IAudioOutput : IDisposable {
@@ -30,14 +33,12 @@ namespace SharpWave {
 		
 		public int NumBuffers;
 		public bool pendingStop;
-		public void PlayStreaming(IMediaContainer container) {
-			container.ReadMetadata();
-			ICodec codec = container.GetAudioCodec();
-			AudioFormat format = codec.ReadHeader(container);
+		public void PlayStreaming(Stream src) {
+			VorbisCodec codec = new VorbisCodec();
+			AudioFormat format = codec.ReadHeader(src);
 			
 			SetFormat(format);
-			IEnumerator<AudioChunk> chunks =
-				codec.StreamData(container).GetEnumerator();
+			IEnumerator<AudioChunk> chunks = codec.StreamData(src).GetEnumerator();
 			
 			bool reachedEnd = false;
 			for (;;) {
@@ -59,36 +60,4 @@ namespace SharpWave {
 			}
 		}
 	}
-	
-	/// <summary> Outputs raw audio to the given stream in the constructor. </summary>
-	public unsafe sealed partial class RawOut : IAudioOutput {
-		public readonly Stream OutStream;
-		public readonly bool LeaveOpen;
-		public Action OnGotMetadata;
-		
-		public RawOut(FileStream outStream, bool leaveOpen) {
-			OutStream = outStream;
-			LeaveOpen = leaveOpen;
-		}
-		
-		public override void Create(int numBuffers) { NumBuffers = numBuffers; }
-		public override void SetVolume(float volume) { }
-		
-		public override void SetFormat(AudioFormat format) {
-			Format = format;
-			if (OnGotMetadata != null) OnGotMetadata();
-		}
-		
-		public override void PlayData(int index, AudioChunk chunk) {
-			OutStream.Write(chunk.Data, 0, chunk.Length);
-		}
-		
-		public override void Dispose() {
-			if (LeaveOpen) return;
-			OutStream.Close();
-		}
-		
-		public override bool IsCompleted(int index) { return true; }
-		public override bool IsFinished() { return true; }
-	}
 }

SharpWave/Backends/OpenALOut.cs

@@ -1,7 +1,6 @@
 using System;
 using OpenTK.Audio;
 using OpenTK.Audio.OpenAL;
-using SharpWave.Codecs;
 
 namespace SharpWave {
 	

SharpWave/Backends/WinMM.cs

@@ -28,8 +28,7 @@ namespace SharpWave {
 		internal static string GetErrorDescription(uint error) {
 			StringBuilder message = new StringBuilder(1024);
 			uint result = waveOutGetErrorText(error, message, message.Capacity);
-			if(result == 0)
-				return message.ToString();
+			if (result == 0) return message.ToString();
 			return "waveOutGetErrorText failed.";
 		}
 	}
@@ -61,8 +60,5 @@ namespace SharpWave {
 	public enum WaveHeaderFlags : uint {
 		Done = 0x01,
 		Prepared = 0x02,
-		BeginLoop = 0x04,
-		EndLoop = 0x08,
-		InQueue = 0x10,
 	}
 }

SharpWave/Backends/WinMmOut.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Runtime.InteropServices;
 using System.Threading;
-using SharpWave.Codecs;
 
 namespace SharpWave {
 	

SharpWave/ICodec.cs

@@ -1,17 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-
-namespace SharpWave.Codecs {
-	
-	public interface ICodec {		
-		AudioFormat ReadHeader(Stream source);
-		IEnumerable<AudioChunk> StreamData(Stream source);
-		string Name { get; }
-	}
-	
-	public sealed class AudioChunk {
-		public byte[] Data;
-		public int Length;
-	}
-}

SharpWave/IMediaContainer.cs

@@ -1,48 +0,0 @@
-using System;
-using System.IO;
-using SharpWave.Codecs;
-
-namespace SharpWave.Containers {
-	
-	public abstract class IMediaContainer : Stream {
-		protected Stream stream;	
-		public IMediaContainer(Stream source) { stream = source; }
-		
-		public abstract void ReadMetadata();
-		
-		public abstract ICodec GetAudioCodec();
-		
-		#region Stream implementation
-		
-		public override bool CanRead { get { return true; } }	
-		public override bool CanSeek { get { return false; } }	
-		public override bool CanWrite { get { return false; } }
-		public override void Flush() { stream.Flush(); }		
-		public override long Length { get { return stream.Length; } }
-		
-		public override long Position {
-			get { return stream.Position; }
-			set { stream.Position = value; }
-		}
-
-		public override long Seek( long offset, SeekOrigin origin ) {
-			return stream.Seek( offset, origin );
-		}
-		
-		public override void SetLength( long value ) {
-			throw new NotImplementedException( "SharpWave is only a decoder" );
-		}
-		
-		public override int Read(byte[] buffer, int offset, int count) {
-			return stream.Read(buffer, offset, count);
-		}
-		
-		public override int ReadByte() { return stream.ReadByte(); }
-		
-		public override void Write( byte[] buffer, int offset, int count ) {
-			throw new NotImplementedException( "SharpWave is only a decoder" );
-		}
-		
-		#endregion
-	}
-}

SharpWave/SharpWave.csproj

@@ -61,21 +61,17 @@
     <Compile Include="csvorbis\Ogg\SyncState.cs" />
     <Compile Include="csvorbis\StaticCodeBook.cs" />
     <Compile Include="csvorbis\VUtils.cs" />
-    <Compile Include="ICodec.cs" />
-    <Compile Include="IMediaContainer.cs" />
     <Compile Include="Backends\AL.cs" />
     <Compile Include="Backends\WinMM.cs" />
     <Compile Include="Backends\OpenALOut.cs" />
     <Compile Include="Backends\WinMmOut.cs" />
+    <Compile Include="Utils.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="Utils\MemUtils.cs" />
     <Compile Include="Backends\IAudioOutput.cs" />
-    <Compile Include="VolumeMixer.cs" />
   </ItemGroup>
   <ItemGroup>
     <Folder Include="csvorbis\Ogg" />
     <Folder Include="csvorbis" />
-    <Folder Include="Utils" />
     <Folder Include="Backends" />
   </ItemGroup>
   <ItemGroup>

SharpWave/Utils.cs

@@ -2,6 +2,37 @@
 
 namespace SharpWave {
 	
+	public static class MemUtils {
+		
+		static MemUtils() {
+			use64Bit = IntPtr.Size == 8;
+		}
+		static bool use64Bit;
+		
+		public static unsafe void memcpy( IntPtr srcPtr, IntPtr dstPtr, int bytes ) {
+			byte* srcByte, dstByte;
+			if( use64Bit ) {
+				ulong* srcLong = (ulong*)srcPtr, dstLong = (ulong*)dstPtr;
+				while( bytes >= 8 ) {
+					*dstLong++ = *srcLong++;
+					bytes -= 8;
+				}
+				srcByte = (byte*)srcLong; dstByte = (byte*)dstLong;
+			} else {
+				uint* srcInt = (uint*)srcPtr, dstInt = (uint*)dstPtr;
+				while( bytes >= 4 ) {
+					*dstInt++ = *srcInt++;
+					bytes -= 4;
+				}
+				srcByte = (byte*)srcInt; dstByte = (byte*)dstInt;
+			}
+			
+			for( int i = 0; i < bytes; i++ ) {
+				*dstByte++ = *srcByte++;
+			}
+		}
+	}
+	
 	public unsafe static class VolumeMixer {
 		
 		public static void Mix16( short* samples, int numSamples, int volumePercent ) {
@@ -36,4 +67,4 @@ namespace SharpWave {
 			}
 		}
 	}
-}
+}

SharpWave/Utils/MemUtils.cs

@@ -1,35 +0,0 @@
-using System;
-
-namespace SharpWave {
-	
-	public static class MemUtils {
-		
-		static MemUtils() {
-			use64Bit = IntPtr.Size == 8;
-		}
-		static bool use64Bit;
-		
-		public static unsafe void memcpy( IntPtr srcPtr, IntPtr dstPtr, int bytes ) {
-			byte* srcByte, dstByte;
-			if( use64Bit ) {
-				ulong* srcLong = (ulong*)srcPtr, dstLong = (ulong*)dstPtr;
-				while( bytes >= 8 ) {
-					*dstLong++ = *srcLong++;
-					bytes -= 8;
-				}
-				srcByte = (byte*)srcLong; dstByte = (byte*)dstLong;
-			} else {
-				uint* srcInt = (uint*)srcPtr, dstInt = (uint*)dstPtr;
-				while( bytes >= 4 ) {
-					*dstInt++ = *srcInt++;
-					bytes -= 4;
-				}
-				srcByte = (byte*)srcInt; dstByte = (byte*)dstInt;
-			}
-			
-			for( int i = 0; i < bytes; i++ ) {
-				*dstByte++ = *srcByte++;
-			}
-		}
-	}
-}

SharpWave/csvorbis/VorbisCodec.cs

@@ -3,27 +3,10 @@ using System.Collections.Generic;
 using System.IO;
 using csogg;
 using csvorbis;
-using SharpWave.Containers;
 
-namespace SharpWave.Codecs.Vorbis {
+namespace SharpWave {
 	
-	public sealed class OggContainer : IMediaContainer {
-		
-		public OggContainer( Stream source ) : base( source ) {
-		}
-		
-		public override void ReadMetadata() {
-			// this would be a good place to read vorbis headers
-		}
-		
-		public override ICodec GetAudioCodec() {
-			return new VorbisCodec();
-		}
-	}
-	
-	public sealed class VorbisCodec : ICodec {
-		public string Name { get { return "Xiph.org Vorbis"; } }
-		
+	public sealed class VorbisCodec {
 		public VorbisCodec() {
 			chunk = new AudioChunk();
 		}

src/Client/Vorbis.c

@@ -147,6 +147,13 @@ struct Codebook {
 	UInt16* Multiplicands;
 };
 
+static void Codebook_Free(struct Codebook* c) {
+	Mem_Free(&c->Codewords);
+	Mem_Free(&c->CodewordLens);
+	Mem_Free(&c->Values);
+	Mem_Free(&c->Multiplicands);
+}
+
 static UInt32 Codebook_Pow(UInt32 base, UInt32 exp) {
 	UInt32 result = 1; /* exponentiation by squaring */
 	while (exp) {
@@ -267,6 +274,7 @@ static ReturnCode Codebook_DecodeSetup(struct VorbisState* ctx, struct Codebook*
 	Mem_Free(&codewordLens);
 
 	c->LookupType = Vorbis_ReadBits(ctx, 4);
+	c->Multiplicands = NULL;
 	if (c->LookupType == 0) return 0;
 	if (c->LookupType > 2)  return VORBIS_ERR_CODEBOOK_LOOKUP;
 
@@ -704,7 +712,7 @@ static void Residue_DecodeFrame(struct VorbisState* ctx, struct Residue* r, Int3
 		bool decodeAny = false;
 		Int32 i, j;
 
-		/* type 2 decodes all channel vectors 2, if at least 1 channel to decode */
+		/* type 2 decodes all channel vectors, if at least 1 channel to decode */
 		for (i = 0; i < ch; i++) {
 			if (!doNotDecode[i]) decodeAny = true;
 		}
@@ -976,17 +984,25 @@ static void Vorbis_CalcWindow(struct VorbisState* ctx, UInt32* offset, bool long
 }
 
 void Vorbis_Free(struct VorbisState* ctx) {
+	Int32 i;
+	for (i = 0; i < ctx->NumCodebooks; i++) {
+		Codebook_Free(&ctx->Codebooks[i]);
+	}
+
 	Mem_Free(&ctx->Codebooks);
 	Mem_Free(&ctx->Floors);
 	Mem_Free(&ctx->Residues);
 	Mem_Free(&ctx->Mappings);
 	Mem_Free(&ctx->Modes);
 	Mem_Free(&ctx->WindowShort);
-	/* TODO: free memory in codebooks, other bits, etc*/
+
+	Mem_Free(&ctx->Values[0]);
+	Mem_Free(&ctx->Values[1]);
+	/* TODO: free other temp memory, etc*/
 }
 
-static bool Vorbis_ValidBlockSize(UInt32 blockSize) {
-	return blockSize >= 64 && blockSize <= 8192 && Math_IsPowOf2(blockSize);
+static bool Vorbis_ValidBlockSize(UInt32 size) {
+	return size >= 64 && size <= VORBIS_MAX_BLOCK_SIZE && Math_IsPowOf2(size);
 }
 
 static ReturnCode Vorbis_DecodeHeader(struct VorbisState* ctx, UInt8 type) {
@@ -1045,6 +1061,7 @@ static ReturnCode Vorbis_DecodeSetup(struct VorbisState* ctx) {
 		result = Codebook_DecodeSetup(ctx, &ctx->Codebooks[i]);
 		if (result) return result;
 	}
+	ctx->NumCodebooks = count;
 
 	count = Vorbis_ReadBits(ctx, 6); count++;
 	for (i = 0; i < count; i++) {
@@ -1113,8 +1130,8 @@ ReturnCode Vorbis_DecodeHeaders(struct VorbisState* ctx) {
 	if (result) return result;
 
 	/* window calculations can be pre-computed here */
-	UInt32 size = ctx->BlockSizes[0] + ctx->BlockSizes[1] * 4, offset = 0;
-	ctx->WindowShort = Mem_Alloc(size, sizeof(Real32), "Vorbis windows");
+	UInt32 count = ctx->BlockSizes[0] + ctx->BlockSizes[1] * 4, offset = 0;
+	ctx->WindowShort = Mem_Alloc(count, sizeof(Real32), "Vorbis windows");
 	Vorbis_CalcWindow(ctx, &offset, false, false, false);
 
 	ctx->WindowLong[0][0] = ctx->WindowShort + offset;
@@ -1126,6 +1143,10 @@ ReturnCode Vorbis_DecodeHeaders(struct VorbisState* ctx) {
 	ctx->WindowLong[1][1] = ctx->WindowShort + offset;
 	Vorbis_CalcWindow(ctx, &offset, true, true,  true);
 
+	count = ctx->Channels * ctx->BlockSizes[1];
+	ctx->Values[0] = Mem_AllocCleared(count, sizeof(Real32), "Vorbis values");
+	ctx->Values[1] = Mem_AllocCleared(count, sizeof(Real32), "Vorbis values");
+
 	imdct_init(&ctx->imdct[0], ctx->BlockSizes[0]);
 	imdct_init(&ctx->imdct[1], ctx->BlockSizes[1]);
 	return 0;
@@ -1155,9 +1176,13 @@ ReturnCode Vorbis_DecodeFrame(struct VorbisState* ctx) {
 		next_window = Vorbis_ReadBits(ctx, 1);
 	}	
 
-	ctx->Values = Mem_AllocCleared(ctx->Channels * ctx->CurBlockSize, sizeof(Real32), "audio values");
+	/* swap prev and cur outputs around */
+	Real32* tmp = ctx->Values[1]; ctx->Values[1] = ctx->Values[0]; ctx->Values[0] = tmp;
+	Mem_Set(ctx->Values[0], 0, ctx->Channels * ctx->CurBlockSize);
+
 	for (i = 0; i < ctx->Channels; i++) {
-		ctx->CurOutput[i] = ctx->Values + i * ctx->CurBlockSize;
+		ctx->CurOutput[i]  = ctx->Values[0] + i * ctx->CurBlockSize;
+		ctx->PrevOutput[i] = ctx->Values[1] + i * ctx->PrevBlockSize;
 	}
 
 	/* decode floor */
@@ -1292,9 +1317,6 @@ Int32 Vorbis_OutputFrame(struct VorbisState* ctx, Int16* data) {
 
 finish:
 	ctx->PrevBlockSize = ctx->CurBlockSize;
-	for (i = 0; i < VORBIS_MAX_CHANS; i++) {
-		ctx->PrevOutput[i] = ctx->CurOutput[i];
-	}
 	return size;
 }
 

src/Client/Vorbis.h

@@ -27,9 +27,9 @@ struct VorbisState {
 	struct Stream* Source;  /* Source for filling Input buffer */
 
 	UInt8 Channels, ModeNumBits; 
-	UInt16 CurBlockSize, PrevBlockSize, DataSize;
+	UInt16 CurBlockSize, PrevBlockSize, DataSize, NumCodebooks;
 	Int32 SampleRate; Int32 BlockSizes[2];
-	Real32* Values;
+	Real32* Values[2]; /* swapped each frame */
 	Real32* PrevOutput[VORBIS_MAX_CHANS];
 	Real32* CurOutput[VORBIS_MAX_CHANS];