public void Play(ALBuffer buffer, int channel)
{
ALSource source = sources[channel];
source.Queue(buffer);
source.Play();
}
public override bool Decode(ALBuffer buffer)
{
if (this.EndOfStream)
{
return(false);
}
var read = this.stream.Read(this.sampleBuffer);
buffer.Write(sampleBuffer.AsSpan().Slice(0, read), (short)this.channels, (short)this.sampleSize, this.sampleRate);
return(true);
}
public override bool Decode(ALBuffer buffer)
{
if (this.EndOfStream)
{
return(false);
}
var samplesWritten = 0;
Span <float> readBuffer = stackalloc float[ReadSampleCount];
while (samplesWritten < this.sampleBuffer.Length && !this.EndOfStream)
{
var read = this.reader.ReadSamples(readBuffer);
var readSamples = readBuffer.Slice(0, read);
for (int readIndex = 0; readIndex < readSamples.Length; readIndex++)
{
var temp = (int)(short.MaxValue * readSamples[readIndex]);
if (temp > short.MaxValue)
{
temp = short.MaxValue;
}
else if (temp < short.MinValue)
{
temp = short.MinValue;
}
this.sampleBuffer[samplesWritten++] = (short)temp;
}
}
unsafe
{
fixed(short *bufferedPtr = this.sampleBuffer)
{
var buffered = new Span <byte>(bufferedPtr, sizeof(short) * samplesWritten);
buffer.Write(buffered, (short)this.Channels, (short)this.SampleSize, this.SampleRate);
}
}
return(true);
}
public override void Load(ALBuffer buffer)
{
if (stream is UnmanagedMemoryStream ums)
{
ReadOnlySpan <byte> umsData;
unsafe
{
umsData = new ReadOnlySpan <byte>(ums.PositionPointer, (int)ums.Length);
}
buffer.Write(umsData, (short)this.channels, (short)this.sampleSize, this.sampleRate);
}
else
{
var sampleData = new byte[this.totalSamples * (this.sampleSize / 8)];
stream.Write(sampleData);
buffer.Write(sampleData, (short)this.channels, (short)this.sampleSize, this.sampleRate);
}
}
public override void Load(ALBuffer buffer)
{
var channels = this.reader.Channels;
var sampleRate = this.reader.SampleRate;
var samples = new float[this.reader.TotalSamples];
var totalSamples = this.reader.ReadSamples(samples);
var samplesIn16Bit = new short[totalSamples];
for (int i = 0; i < totalSamples; i++)
{
var temp = (int)(short.MaxValue * samples[i]);
if (temp > short.MaxValue)
{
temp = short.MaxValue;
}
else if (temp < short.MinValue)
{
temp = short.MinValue;
}
samplesIn16Bit[i] = (short)temp;
}
unsafe
{
fixed(short *samplesPtr = samplesIn16Bit)
{
checked
{
var sampleData = new ReadOnlySpan <byte>(samplesPtr, samples.Length * sizeof(ushort));
buffer.Write(sampleData, (short)channels, (short)this.SampleSize, sampleRate);
}
}
}
}
public void Play(ALBuffer buffer)
{
Play(buffer, nextSource);
nextSource = (nextSource + 1) % sources.Length;
}
private void _addSoundSourceToolStripButton_Click(object sender, EventArgs e)
{
if (_openFileDialog.ShowDialog() != System.Windows.Forms.DialogResult.Cancel)
{
var source = new ALSource();
var buffer = new ALBuffer();
buffer.LoadWavFile(_openFileDialog.FileName);
source.Buffer = buffer;
source.Position = new Vector3(50, 50, 50);
source.Looping = true;
_sources.Add(source);
InvalidateViews();
}
}
