retro commit for released version 3.0.1

4klang_source/Go4kVSTi/source/GoSynth/Go4kVSTiproc.cpp

@@ -0,0 +1,158 @@
+#ifndef __Go4kVSTi__
+#include "Go4kVSTi.h"
+#include "Go4kVSTiCore.h"
+#include "stdio.h"
+#endif
+
+#include "math.h"
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::setSampleRate (float sampleRate)
+{
+	AudioEffectX::setSampleRate (sampleRate);
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::setBlockSize (long blockSize)
+{
+	AudioEffectX::setBlockSize (blockSize);
+	// you may need to have to do something here...
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::suspend ()
+{
+	m_currentEvents.clear();
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::resume ()
+{
+	wantEvents ();
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::initProcess ()
+{
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::process (float **inputs, float **outputs, long sampleFrames)
+{
+	processAnyhow(inputs, outputs, sampleFrames);	
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::processReplacing (float **inputs, float **outputs, long sampleFrames)
+{
+	processAnyhow(inputs, outputs, sampleFrames);
+}
+
+void Go4kVSTi::processAnyhow(float **inputs, float **outputs, long sampleFrames)
+{
+	float* outl = outputs[0];
+	float* outr = outputs[1];
+	static int bpmCheck = 0;
+	if ( bpmCheck <= 0 )
+	{
+		VstTimeInfo* myTime = getTimeInfo ( kVstTempoValid );
+		Go4kVSTi_SetBPM(myTime->tempo);
+		bpmCheck = 20; // only check every 20th call of this function (bpm shouldnt change that often)
+    }
+	bpmCheck--;
+
+	int start = 0;
+	// midi events will occur this frame, so render partially
+	if (m_currentEvents.size() > 0)
+	{		
+		// for all events
+        for (unsigned int i = 0; i < m_currentEvents.size(); i++)
+		{
+			// process samples until next event
+			int todo = m_currentEvents[i]->deltaFrames - start;
+			Go4kVSTi_Tick(outl+start, outr+start, todo);
+			start = m_currentEvents[i]->deltaFrames;
+			// apply changes due to event
+			ApplyEvent(m_currentEvents[i]);
+		}
+	}
+	Go4kVSTi_Tick(outl+start, outr+start, sampleFrames - start);
+
+	// clear event list (old event pointer wont be valid next frame anyway)
+	m_currentEvents.clear();
+}
+
+//-----------------------------------------------------------------------------------------
+long Go4kVSTi::processEvents(VstEvents* ev)
+{
+	for (long i = 0; i < ev->numEvents; i++)
+	{
+		if ((ev->events[i])->type != kVstMidiType)
+			continue;
+		VstMidiEvent* event = (VstMidiEvent*)ev->events[i];
+		m_currentEvents.push_back(event);
+	} 
+	return 1;	// want more
+}
+
+//-----------------------------------------------------------------------------------------
+void Go4kVSTi::ApplyEvent(VstMidiEvent *event)
+{
+	char* midiData = event->midiData;
+	byte status = midiData[0] & 0xf0;		// status
+	byte channel = midiData[0] & 0x0f;		// channel
+
+	// note on/off events
+	if (status == 0x90 || status == 0x80)
+	{
+		byte note = midiData[1] & 0x7f;
+		byte velocity = midiData[2] & 0x7f;
+		if (status == 0x80)
+			velocity = 0;
+		// note off
+		if (!velocity)
+		{
+			Go4kVSTi_StopVoice(channel, note);
+		}
+		// note on	
+		else
+		{
+			Go4kVSTi_AddVoice(channel, note);
+		}
+	}
+/*	// polyphonic aftertouch
+	else if (status == 0xA)
+	{
+		byte note = midiData[1] & 0x7f;
+		byte pressure = midiData[2] & 0x7f;
+		Go4kVSTi_PolyAftertouch(channel, note, pressure);
+	}
+	// channel aftertouch
+	else if (status == 0xD)
+	{
+		byte pressure = midiData[1] & 0x7f;
+		Go4kVSTi_ChannelAftertouch(channel, pressure);
+	}
+	// Controller Change
+	else if (status == 0xB0)
+	{
+		byte number = midiData[1] & 0x7f;
+		byte value = midiData[2] & 0x7f;
+//		Go4kVSTi_ControllerChange(channel, number, value, event->deltaFrames);
+	}
+	// Pitch Bend
+	else if (status == 0xE0)
+	{
+		byte lsb = midiData[1] & 0x7f;
+		byte msb = midiData[2] & 0x7f;
+		int value = (((int)(msb)) << 7) + lsb;
+//		Go4kVSTi_PitchBend(channel, value); // 0 - 16383, center 8192
+		// dont use full precision for the sake of equally sized streams
+//		Go4kVSTi_PitchBend(channel, value >> 7, event->deltaFrames); // 0 - 127, center 64
+	}*/
+	// all notes off (dont seem to come anyway
+	else if (status == 0xb0 && midiData[1] == 0x7e)	// all notes off
+	{
+		Go4kVSTi_StopVoice(channel, 0);
+	}		
+}