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/*
vst~ - VST plugin object for PD
based on the work of Jarno Seppänen and Mark Williamson
Copyright (c)2003-2005 Thomas Grill (gr@grrrr.org)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "vsthost.h"
static const int VST_VERSION = 100;
static const char *vendor = "grrrr.org";
static const char *product = "vst~";
void VSTPlugin::ProcessEvent(const VstEvent &ev)
{
if(!responder) return;
if(ev.type == kVstMidiType) {
const VstMidiEvent &mev = (const VstMidiEvent &)ev;
t_atom lst[10];
SetSymbol(lst[0],sym_evmidi);
int midi = ((unsigned char)mev.midiData[0]>>4)-8;
FLEXT_ASSERT(midi >= 0 && midi < 8);
SetSymbol(lst[1],sym_midi[midi]);
SetInt(lst[2],(unsigned char)mev.midiData[0]&0x0f);
SetInt(lst[3],(unsigned char)mev.midiData[1]);
SetInt(lst[4],(unsigned char)mev.midiData[2]);
// what about running status? (obviously not possible)
SetInt(lst[5],mev.deltaFrames);
SetInt(lst[6],mev.noteLength);
SetInt(lst[7],mev.noteOffset);
SetInt(lst[8],(int)mev.detune);
SetInt(lst[9],(int)mev.noteOffVelocity);
responder->Respond(sym_event,9,lst);
}
else {
const t_symbol *sym;
if(ev.type == kVstAudioType)
sym = sym_evaudio;
else if(ev.type == kVstVideoType)
sym = sym_evvideo;
else if(ev.type == kVstParameterType)
sym = sym_evparam;
else if(ev.type == kVstTriggerType)
sym = sym_evtrigger;
else if(ev.type == kVstSysExType)
sym = sym_evsysex;
else
sym = sym_ev_;
int data = ev.byteSize-sizeof(ev.deltaFrames)-sizeof(ev.flags);
const int stsize = 16;
t_atom stlst[stsize];
t_atom *lst = data+3 > stsize?new t_atom[data+3]:stlst;
SetSymbol(lst[0],sym);
SetInt(lst[1],ev.deltaFrames);
SetInt(lst[2],ev.flags);
for(int i = 0; i < data; ++i) SetInt(lst[3],(unsigned char)ev.data[i]);
responder->Respond(sym_event,data+3,lst);
if(lst != stlst) delete[] lst;
}
}
// Host callback dispatcher
long VSTPlugin::Master(AEffect *effect, long opcode, long index, long value, void *ptr, float opt)
{
#ifdef FLEXT_LOGGING
post("VST -> host: Eff = 0x%.8X, Opcode = %d, Index = %d, Value = %d, PTR = %.8X, OPT = %.3f\n",(int)effect, opcode,index,value,(int)ptr,opt);
#endif
VSTPlugin *th = effect?(VSTPlugin *)effect->user:NULL;
switch (opcode) {
case audioMasterAutomate: // 0
if(th && th->feedback && th->responder) {
t_atom lst[2];
SetInt(lst[0],index);
SetFloat(lst[1],opt);
th->responder->Respond(sym_param,2,lst);
}
return 0;
case audioMasterVersion: // 1
// support VST 2.3
return 2300;
case audioMasterCurrentId: // 2
// set to subplugin id (default 0)
return uniqueid;
case audioMasterIdle: // 3
effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
return 0;
case audioMasterPinConnected: // 4
//! \todo set connection state correctly (if possible..)
// index=pin, value=0..input, else..output
#ifdef FLEXT_LOGGING
post("Pin connected pin=%li conn=%li",index,value);
#endif
return 0; // 0 means connected
case audioMasterWantMidi: // 6
#ifdef FLEXT_LOGGING
post("Want MIDI = %li",value);
#endif
return 0; // VST header says: "currently ignored"
case audioMasterGetTime: { // 7
if(!th) return 0;
static VstTimeInfo time;
memset(&time,0,sizeof(time));
// flags
time.flags = kVstTempoValid|kVstBarsValid|kVstCyclePosValid|kVstPpqPosValid|kVstSmpteValid|kVstTimeSigValid;
if(th->transchg) { time.flags |= kVstTransportChanged; th->transchg = false; }
if(th->playing) time.flags |= kVstTransportPlaying;
if(th->looping) time.flags |= kVstTransportCycleActive;
// if(th->feedback) time.flags |= kVstAutomationWriting;
time.sampleRate = th->samplerate;
time.samplePos = th->samplepos;
time.ppqPos = th->ppqpos;
time.tempo = th->tempo;
time.barStartPos = th->barstartpos;
time.cycleStartPos = th->cyclestartpos;
time.cycleEndPos = th->cycleendpos;
time.timeSigNumerator = th->timesignom;
time.timeSigDenominator = th->timesigden;
// SMPTE data
time.smpteOffset = th->smpteoffset;
time.smpteFrameRate = th->smpterate;
// time.samplesToNextClock = 0;
if(value&kVstNanosValid) {
time.nanoSeconds = flext::GetOSTime()*1.e9;
time.flags |= kVstNanosValid;
}
return (long)&time;
}
case audioMasterProcessEvents: { // 8
// VST event data from plugin
VstEvents *evs = static_cast<VstEvents *>(ptr);
if(th) {
for(int i = 0; i < evs->numEvents; ++i)
th->ProcessEvent(*evs->events[i]);
return 1;
}
else
return 0;
}
case audioMasterSetTime: { // 9
VstTimeInfo *tminfo = static_cast<VstTimeInfo *>(ptr);
#ifdef FLEXT_DEBUG
post("TimeInfo pos=%lf rate=%lf filter=%li",tminfo->samplePos,tminfo->sampleRate,value);
#endif
return 0; // not supported
}
case audioMasterTempoAt: // 10
return 0; // not supported
case audioMasterGetNumAutomatableParameters: // 11
return 0; // not supported
case audioMasterSizeWindow: // 15
return 0;
case audioMasterGetSampleRate: // 16
return 0; // not supported
case audioMasterGetBlockSize: // 17
return 0; // not supported
case audioMasterGetCurrentProcessLevel: // 23
// return thread state
return flext::GetThreadId() == flext::GetSysThreadId()?2:1;
case audioMasterGetAutomationState: // 24
// return th?(th->feedback?2:1):0;
return 0;
case audioMasterGetVendorString: // 32
strcpy((char*)ptr,vendor);
return 0;
case audioMasterGetProductString: // 33
strcpy((char *)ptr,product);
return 0;
case audioMasterGetVendorVersion: // 34
return VST_VERSION;
case audioMasterCanDo: // 37
#ifdef FLEXT_LOGGING
post("\taudioMasterCanDo PTR = %s",ptr);
#endif
if(!strcmp((char *)ptr,"sendVstEvents"))
return 1;
else if(!strcmp((char *)ptr,"sendVstMidiEvent"))
return 1;
else if(!strcmp((char *)ptr,"sendVstTimeInfo"))
return 1; // NOT YET
else if(!strcmp((char *)ptr,"receiveVstEvents"))
return 1;
else if(!strcmp((char *)ptr,"receiveVstMidiEvent"))
return 1;
else if(!strcmp((char *)ptr,"receiveVstTimeInfo"))
return 1; // NOT YET
else if(!strcmp((char *)ptr,"reportConnectionChanges"))
return 0; // \TODO PD has hard times supporting that...
else if(!strcmp((char *)ptr,"acceptIOChanges"))
return 0; // \TODO what does this means exactly?
else if(!strcmp((char *)ptr,"supplyIdle"))
return 1;
else if(!strcmp((char *)ptr,"sizeWindow"))
return 1;
else if(!strcmp((char *)ptr,"supportShell"))
return 0; // deprecated - new one is shellCategory
else if(!strcmp((char *)ptr,"offline"))
return 0; // not supported
else if(!strcmp((char *)ptr,"asyncProcessing"))
return 0; // not supported
else if(!strcmp((char *)ptr,"shellCategory"))
return 1; // supported!
else if(!strcmp((char *)ptr,"editFile"))
return 0; // not supported
else if(!strcmp((char *)ptr,"openFileSelector"))
return 0; // not supported
else if(!strcmp((char *)ptr,"closeFileSelector"))
return 0; // not supported
else if(!strcmp((char *)ptr,"startStopProcess"))
return 0; // not supported
#ifdef FLEXT_DEBUG
else
post("Unknown audioMasterCanDo PTR = %s",ptr);
#endif
return 0; // not supported
case audioMasterGetLanguage: // 38
return kVstLangEnglish;
case audioMasterGetDirectory: // 41
return (long)(th?th->dllname.c_str():dllloading.c_str());
case audioMasterUpdateDisplay: // 42
#ifdef FLEXT_LOGGING
post("UPDATE DISPLAY");
#endif
return 0;
default:
#ifdef FLEXT_DEBUG
post("Unknown opcode %li",opcode);
#endif
return 0;
}
}
void VSTPlugin::updatepos(long frames)
{
bool inloop = ppqpos < cycleendpos;
// \todo should the sample position also jump back when cycling?
// and if, how?
samplepos += frames;
// \todo this factor should be cached
ppqpos += frames*tempo/(samplerate*60);
if(looping) {
double cyclelen = cycleendpos-cyclestartpos;
if(cyclelen > 0) {
if(inloop && ppqpos >= cycleendpos)
ppqpos = cyclestartpos+fmod(ppqpos-cyclestartpos,cyclelen);
}
else
ppqpos = cyclestartpos;
}
}
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