public VstPluginChannel(int asioBuffSize)
{
// Create big enough buffers to fit all plugin types
int inSize = 32;
int outSize = 64;
if (asioBuffSize != 0)
{
if (InputBuffers == null || inSize != InputBuffers.Count)
{
InputBuffers = null; // Dispose first if already existed!
InputBuffers = new AudioBufferInfo(inSize, asioBuffSize);
}
if (OutputBuffers == null || outSize != OutputBuffers.Count)
{
OutputBuffers = null; // Dispose first if already existed!
OutputBuffers = new AudioBufferInfo(outSize, asioBuffSize);
}
}
InstrumentPlugin = new VstInstrumentPlugin(InputBuffers, OutputBuffers, asioBuffSize);
EffectPlugins = new VstPlugin[NumberOfEffectPlugins];
for (int i = 0; i < NumberOfEffectPlugins; i++)
{
EffectPlugins[i] = new VstPlugin(InputBuffers, OutputBuffers, asioBuffSize, true);
}
}
public VstPlugin(AudioBufferInfo parentInBuffers, AudioBufferInfo parentOutBuffers, int asioBuffSize, bool dbg)
{
dbgIsEffect = dbg;
mParentInBuffers = parentInBuffers;
mParentOutBuffers = parentOutBuffers;
mAsioBuffSize = asioBuffSize;
}
public void AttachVstPluginContext(VstPluginContext ctx, string name)
{
mVstPluginContext = ctx;
// Create big enough buffers to fit all plugin types
int inSize = 32; // value.PluginInfo.AudioInputCount;
int outSize = 64; // value.PluginInfo.AudioOutputCount;
if (mAsioBuffSize != 0)
{
if (InputBuffers == null || inSize != InputBuffers.Count)
{
InputBuffers = null; // Dispose first if already existed!
InputBuffers = new AudioBufferInfo(inSize, mParentInBuffers);
}
if (OutputBuffers == null || outSize != OutputBuffers.Count)
{
OutputBuffers = null; // Dispose first if already existed!
OutputBuffers = new AudioBufferInfo(outSize, mParentOutBuffers);
}
}
ctx.PluginCommandStub.MainsChanged(true);
ctx.PluginCommandStub.StartProcess();
State = PluginState.Deactivated;
PluginName = name;
ProgramName = ctx.PluginCommandStub.GetProgramName();
UseExtendedEffectRange = (PluginName == "Nexus");
}
public VstInstrumentPlugin(AudioBufferInfo parentInBuffers, AudioBufferInfo parentOutBuffers, int asioBuffSize)
: base(parentInBuffers, parentOutBuffers, asioBuffSize, false)
{
for (int i = 0; i < 256; i++)
{
Notes[i] = new Note();
}
}
protected void BufferReady(byte[] data)
{
AudioBufferInfo abuf = new AudioBufferInfo();
abuf.Data = data;
abuf.Format = fmt;
Emit(abuf);
}
protected override void PlayBuffer(AudioBufferInfo buffer)
{
Sapi4Engine.miniLog("entering PlayBuffer");
Buffers.Enqueue(buffer.Data);
int pos = 0;
if (Buffers.Count < 1)
{
return;
}
else
{
Sapi4Engine.miniLog("at PlayBuffer");
int length = 0; bool destEof = false;
do
{
audioDest.FreeSpace(ref length, ref destEof);
Sapi4Engine.miniLog(String.Format("{0} bytes. eof: {1}", length, destEof));
if (!destEof)
{
int copied = 0;
while ((copied < length) && (Buffers.Count > 0))
{
byte[] buf = Buffers.Peek();
int toCopy = length - copied;
int availCopy = Math.Min(buf.Length - bufPos, toCopy);
IntPtr pmem = Marshal.AllocCoTaskMem(availCopy);
Marshal.Copy(buf, bufPos, pmem, availCopy);
Sapi4Engine.miniLog("before DataSet");
audioDest.DataSet(pmem, availCopy);
Marshal.FreeCoTaskMem(pmem);
Sapi4Engine.miniLog("after DataSet");
//System.Buffer.BlockCopy(buf, bufPos, buffer, pos, availCopy);
copied += availCopy;
bufPos += availCopy;
pos += availCopy;
if (bufPos >= buf.Length)
{
Buffers.Dequeue();
bufPos = 0;
}
}
audioDest.FreeSpace(ref length, ref destEof);
Sapi4Engine.miniLog(String.Format("second round {0} bytes. eof: {1}", length, destEof));
}
System.Threading.Thread.Sleep(0);
}while ((Buffers.Count > 0) && (destEof || (length == 0)));
}
Sapi4Engine.miniLog("leaving PlayBuffer");
}
protected void OnGetBuffer(AudioBufferInfo audioBufferInfo) => HandleBuffer?.Invoke(this, audioBufferInfo);
