public static void LoadData <T>(
this INativeAudioBuffer buffer,
int sampleRate,
T[] data,
int dataLength,
AudioDataLayout dataLayout,
AudioDataElementType dataElementType) where T : struct
{
if (dataLength < 0)
{
throw new ArgumentOutOfRangeException("dataLength", "Data length cannot be negative");
}
if (dataLength > data.Length)
{
throw new ArgumentOutOfRangeException("dataLength", "Data length cannot exceed the specified arrays length.");
}
int itemSize = Marshal.SizeOf(typeof(T));
using (PinnedArrayHandle pinned = new PinnedArrayHandle(data))
{
buffer.LoadData(
sampleRate,
pinned.Address,
itemSize * dataLength,
dataLayout,
dataElementType);
}
}
bool IAudioStreamProvider.ReadStream(INativeAudioBuffer targetBuffer)
{
if (openmpt_module == IntPtr.Zero)
{
return(false);
}
int count = openmpt_module_read_interleaved_stereo(
openmpt_module,
SampleRate,
BufferSize >> 1, // Buffer size per channel
audioBuffer
);
if (count == 0)
{
return(false);
}
targetBuffer.LoadData(
SampleRate,
audioBuffer,
count << 1, // Number of samples (left + right)
AudioDataLayout.LeftRight,
AudioDataElementType.Short
);
return(true);
}
private void PerformStreamingUpdate()
{
int num;
AL.GetSource(this.handle, ALGetSourcei.BuffersProcessed, out num);
while (num > 0)
{
num--;
int unqueuedBufferHandle = AL.SourceUnqueueBuffer(this.handle);
INativeAudioBuffer unqueuedBuffer = null;
for (int i = 0; i < this.strAlBuffers.Length; i++)
{
NativeAudioBuffer buffer = this.strAlBuffers[i] as NativeAudioBuffer;
if (buffer.Handle == unqueuedBufferHandle)
{
unqueuedBuffer = buffer;
break;
}
}
bool eof = !this.streamProvider.ReadStream(unqueuedBuffer);
if (!eof)
{
AL.SourceQueueBuffer(this.handle, unqueuedBufferHandle);
}
else
{
this.strStopReq = StopRequest.EndOfStream;
}
}
}
/// <summary>
/// Disposes the AudioDatas native buffer.
/// </summary>
/// <seealso cref="SetupNativeBuffer"/>
private void DisposeNativeBuffer()
{
if (this.native != null)
{
this.native.Dispose();
this.native = null;
}
}
void INativeAudioSource.Play(INativeAudioBuffer buffer)
{
lock (this.strLock)
{
if (!this.isInitial) throw new InvalidOperationException("Native audio source already in use. To re-use an audio source, reset it first.");
this.isInitial = false;
AL.SourceQueueBuffer(this.handle, (buffer as NativeAudioBuffer).Handle);
AL.SourcePlay(handle);
}
}
/// <summary>
/// Sets up a new native buffer for this AudioData. This will result in decompressing
/// the Ogg Vorbis data and uploading it to OpenAL, unless the AudioData is streamed.
/// </summary>
private void SetupNativeBuffer()
{
// No AudioData available
if (this.data == null || this.data.Length == 0)
{
this.DisposeNativeBuffer();
return;
}
// Streamed Audio
if (this.IsStreamed)
{
this.DisposeNativeBuffer();
this.native = null;
}
// Non-Streamed Audio
else
{
if (this.native == null)
{
this.native = DualityApp.AudioBackend.CreateBuffer();
//PcmData pcm = OggVorbis.LoadFromMemory(this.data);
//this.native.LoadData(
// pcm.SampleRate,
// pcm.Data,
// pcm.DataLength,
// pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
// AudioDataElementType.Short);
byte[] samples;
int sampleRate;
AudioDataLayout layout;
AudioDataElementType type;
WavStreamHandle.Parse(this.data, out samples, out sampleRate, out layout, out type);
int dataLength = (type == AudioDataElementType.Short ? samples.Length / 2 : samples.Length);
this.native.LoadData(
sampleRate,
samples,
dataLength,
layout,
type);
}
else
{
// Buffer already there? Do nothing.
}
}
}
void INativeAudioSource.Play(INativeAudioBuffer buffer)
{
lock (this.strLock)
{
if (!this.isInitial)
{
throw new InvalidOperationException("Native audio source already in use. To re-use an audio source, reset it first.");
}
this.isInitial = false;
AL.SourceQueueBuffer(this.handle, (buffer as NativeAudioBuffer).Handle);
AL.SourcePlay(handle);
}
}
bool IAudioStreamProvider.ReadStream(INativeAudioBuffer targetBuffer)
{
/*if (!OggVorbis.IsStreamValid(this.strOvStr))
* return false;
*
* AudioData audioDataRes = this.audioData.Res;
* PcmData pcm;
* bool eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
* if (eof)
* {
* OggVorbis.EndStream(ref this.strOvStr);
* if (this.looped)
* {
* OggVorbis.BeginStreamFromMemory(audioDataRes.OggVorbisData, out this.strOvStr);
* if (pcm.DataLength == 0)
* eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
* else
* eof = false;
* }
* }
*
* if (pcm.DataLength > 0)
* {
* targetBuffer.LoadData(
* pcm.SampleRate,
* pcm.Data,
* pcm.DataLength,
* pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
* AudioDataElementType.Short);
* }
*
* return pcm.DataLength != 0 && !eof;*/
/*byte[] buffer;
* int sampleRate;
* AudioDataLayout layout;
* AudioDataElementType type;
* strOvStr.StreamChunk(out buffer, out sampleRate, out layout, out type);
*
* if (buffer.Length > 0) {
* targetBuffer.LoadData(
* sampleRate,
* buffer,
* buffer.Length,
* layout,
* type);
* }*/
return(false);
}
void INativeAudioSource.Play(INativeAudioBuffer buffer)
{
if (!this.isInitial)
{
throw new InvalidOperationException(
"Native audio source already in use. To re-use an audio source, reset it first.");
}
this.isInitial = false;
IsStopped = false;
this.strStopReq = StopRequest.None;
// All samples are available now (buffer is completed)
NativeAudioBuffer newBuffer = buffer as NativeAudioBuffer;
AvailableBuffers = new[] { newBuffer };
QueuedBuffersPos = new[] { 0 };
QueuedBuffers.Enqueue(0);
AudioBackend.ActiveInstance.EnqueueForStreaming(this);
}
bool IAudioStreamProvider.ReadStream(INativeAudioBuffer targetBuffer)
{
if (!OggVorbis.IsStreamValid(this.strOvStr))
{
return(false);
}
AudioData audioDataRes = this.audioData.Res;
PcmData pcm;
bool eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
if (eof)
{
OggVorbis.EndStream(ref this.strOvStr);
if (this.looped)
{
OggVorbis.BeginStreamFromMemory(audioDataRes.OggVorbisData, out this.strOvStr);
if (pcm.DataLength == 0)
{
eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
}
else
{
eof = false;
}
}
}
if (pcm.DataLength > 0)
{
targetBuffer.LoadData(
pcm.SampleRate,
pcm.Data,
pcm.DataLength,
pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
AudioDataElementType.Short);
}
return(pcm.DataLength != 0 && !eof);
}
/// <summary>
/// Sets up a new native buffer for this AudioData. This will result in decompressing
/// the Ogg Vorbis data and uploading it to OpenAL, unless the AudioData is streamed.
/// </summary>
private void SetupNativeBuffer()
{
// No AudioData available
if (this.data == null || this.data.Length == 0)
{
this.DisposeNativeBuffer();
return;
}
// Streamed Audio
if (this.IsStreamed)
{
this.DisposeNativeBuffer();
this.native = null;
}
// Non-Streamed Audio
else
{
if (this.native == null)
{
this.native = DualityApp.AudioBackend.CreateBuffer();
PcmData pcm = OggVorbis.LoadFromMemory(this.data);
this.native.LoadData(
pcm.SampleRate,
pcm.Data,
pcm.DataLength,
pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
AudioDataElementType.Short);
}
else
{
// Buffer already there? Do nothing.
}
}
}
bool IAudioStreamProvider.ReadStream(INativeAudioBuffer targetBuffer)
{
if (!OggVorbis.IsStreamValid(this.strOvStr))
return false;
AudioData audioDataRes = this.audioData.Res;
PcmData pcm;
bool eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
if (eof)
{
OggVorbis.EndStream(ref this.strOvStr);
if (this.looped)
{
OggVorbis.BeginStreamFromMemory(audioDataRes.OggVorbisData, out this.strOvStr);
if (pcm.DataLength == 0)
eof = !OggVorbis.StreamChunk(this.strOvStr, out pcm);
else
eof = false;
}
}
if (pcm.DataLength > 0)
{
targetBuffer.LoadData(
pcm.SampleRate,
pcm.Data,
pcm.DataLength,
pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
AudioDataElementType.Short);
}
return pcm.DataLength != 0 && !eof;
}
/// <summary>
/// Sets up a new native buffer for this AudioData. This will result in decompressing
/// the Ogg Vorbis data and uploading it to OpenAL, unless the AudioData is streamed.
/// </summary>
private void SetupNativeBuffer()
{
// No AudioData available
if (this.data == null || this.data.Length == 0)
{
this.DisposeNativeBuffer();
return;
}
// Streamed Audio
if (this.IsStreamed)
{
this.DisposeNativeBuffer();
this.native = null;
}
// Non-Streamed Audio
else
{
if (this.native == null)
{
this.native = DualityApp.AudioBackend.CreateBuffer();
PcmData pcm = OggVorbis.LoadFromMemory(this.data);
this.native.LoadData(
pcm.SampleRate,
pcm.Data,
pcm.DataLength,
pcm.ChannelCount == 1 ? AudioDataLayout.Mono : AudioDataLayout.LeftRight,
AudioDataElementType.Short);
}
else
{
// Buffer already there? Do nothing.
}
}
}
/// <summary>
/// Disposes the AudioDatas native buffer.
/// </summary>
/// <seealso cref="SetupNativeBuffer"/>
private void DisposeNativeBuffer()
{
if (this.native != null)
{
this.native.Dispose();
this.native = null;
}
}
void INativeAudioSource.Play(INativeAudioBuffer buffer)
{
this.initial = false;
}
void INativeAudioSource.Play(INativeAudioBuffer buffer)
{
this.initial = false;
}
