VstIntPtr VSTCALLBACK IPlugVST::VSTDispatcher(AEffect *pEffect, VstInt32 opCode, VstInt32 idx, VstIntPtr value, void *ptr, float opt)
{
// VSTDispatcher is an IPlugVST class member, we can access anything in IPlugVST from here.
IPlugVST* _this = (IPlugVST*) pEffect->object;
if (!_this)
{
return 0;
}
IPlugBase::IMutexLock lock(_this);
// Handle a couple of opcodes here to make debugging easier.
switch (opCode)
{
case effEditIdle:
case __effIdleDeprecated:
#ifdef USE_IDLE_CALLS
_this->OnIdle();
#endif
return 0;
}
Trace(TRACELOC, "%d(%s):%d:%d", opCode, VSTOpcodeStr(opCode), idx, (int) value);
switch (opCode)
{
case effOpen:
{
_this->HostSpecificInit();
_this->OnParamReset();
return 0;
}
case effClose:
{
lock.Destroy();
DELETE_NULL(_this);
return 0;
}
case effGetParamLabel:
{
if (idx >= 0 && idx < _this->NParams())
{
strcpy((char*) ptr, _this->GetParam(idx)->GetLabelForHost());
}
return 0;
}
case effGetParamDisplay:
{
if (idx >= 0 && idx < _this->NParams())
{
_this->GetParam(idx)->GetDisplayForHost((char*) ptr);
}
return 0;
}
case effGetParamName:
{
if (idx >= 0 && idx < _this->NParams())
{
strcpy((char*) ptr, _this->GetParam(idx)->GetNameForHost());
}
return 0;
}
//could implement effGetParameterProperties to group parameters, but can't find a host that supports it
// case effGetParameterProperties:
// {
// if (idx >= 0 && idx < _this->NParams())
// {
// VstParameterProperties* props = (VstParameterProperties*) ptr;
//
// props->flags = kVstParameterSupportsDisplayCategory;
// props->category = idx+1;
// props->numParametersInCategory = 1;
// strcpy(props->categoryLabel, "test");
// }
// return 1;
// }
case effGetParameterProperties:
{
if (idx >= 0 && idx < _this->NParams())
{
VstParameterProperties* props = (VstParameterProperties*) ptr;
props->flags = 0;
IParam* pParam = _this->GetParam(idx);
if (pParam->Type() == IParam::kTypeBool) {
props->flags |= kVstParameterIsSwitch;
}
if (pParam->Type() == IParam::kTypeEnum || pParam->Type() == IParam::kTypeInt) {
props->flags |= kVstParameterUsesFloatStep;
int possibleValuesCount = (int) (pParam->GetMax() - pParam->GetMin());
props->stepFloat = 1.0 / possibleValuesCount;
props->smallStepFloat = props->stepFloat;
props->largeStepFloat = props->stepFloat;
}
}
return 1;
}
case effString2Parameter:
{
if (idx >= 0 && idx < _this->NParams())
{
if (ptr)
{
double v;
IParam* pParam = _this->GetParam(idx);
if (pParam->GetNDisplayTexts())
{
int vi;
if (!pParam->MapDisplayText((char*)ptr, &vi)) return 0;
v = (double)vi;
}
else
{
v = atof((char*)ptr);
if (pParam->DisplayIsNegated()) v = -v;
}
if (_this->GetGUI()) _this->GetGUI()->SetParameterFromPlug(idx, v, false);
pParam->Set(v);
_this->OnParamChange(idx);
}
return 1;
}
return 0;
}
case effSetSampleRate:
{
_this->SetSampleRate(opt);
_this->Reset();
return 0;
}
case effSetBlockSize:
{
_this->SetBlockSize(value);
_this->Reset();
return 0;
}
case effMainsChanged:
{
if (!value)
{
_this->OnActivate(false);
_this->Reset();
}
else
{
_this->OnActivate(true);
}
return 0;
}
case effEditGetRect:
{
if (ptr && _this->GetGUI())
{
*(ERect**) ptr = &(_this->mEditRect);
return 1;
}
ptr = 0;
return 0;
}
case effEditOpen:
{
IGraphics* pGraphics = _this->GetGUI();
if (pGraphics)
{
#ifdef _WIN32
if (!pGraphics->OpenWindow(ptr)) pGraphics=0;
#else // OSX, check if we are in a Cocoa VST host
#if defined(__LP64__)
if (!pGraphics->OpenWindow(ptr)) pGraphics=0;
#else
bool iscocoa = (_this->mHasVSTExtensions&VSTEXT_COCOA);
if (iscocoa && !pGraphics->OpenWindow(ptr)) pGraphics=0;
if (!iscocoa && !pGraphics->OpenWindow(ptr, 0)) pGraphics=0;
#endif
#endif
if (pGraphics)
{
_this->OnGUIOpen();
return 1;
}
}
return 0;
}
case effEditClose:
{
if (_this->GetGUI())
{
_this->OnGUIClose();
_this->GetGUI()->CloseWindow();
return 1;
}
return 0;
}
case __effIdentifyDeprecated:
{
return 'NvEf'; // Random deprecated magic.
}
case effGetChunk:
{
BYTE** ppData = (BYTE**) ptr;
if (ppData)
{
bool isBank = (!idx);
ByteChunk* pChunk = (isBank ? &(_this->mBankState) : &(_this->mState));
_this->InitChunkWithIPlugVer(pChunk);
bool savedOK = true;
if (isBank)
{
_this->ModifyCurrentPreset();
savedOK = _this->SerializePresets(pChunk);
}
else
{
savedOK = _this->SerializeState(pChunk);
}
if (savedOK && pChunk->Size())
{
*ppData = pChunk->GetBytes();
return pChunk->Size();
}
}
return 0;
}
case effSetChunk:
{
if (ptr)
{
bool isBank = (!idx);
ByteChunk* pChunk = (isBank ? &(_this->mBankState) : &(_this->mState));
pChunk->Resize(value);
memcpy(pChunk->GetBytes(), ptr, value);
int pos = 0;
int iplugVer = _this->GetIPlugVerFromChunk(pChunk, &pos);
isBank &= (iplugVer >= 0x010000);
if (isBank)
{
pos = _this->UnserializePresets(pChunk, pos);
}
else
{
pos = _this->UnserializeState(pChunk, pos);
_this->ModifyCurrentPreset();
}
if (pos >= 0)
{
_this->RedrawParamControls();
return 1;
}
}
return 0;
}
case effProcessEvents:
{
VstEvents* pEvents = (VstEvents*) ptr;
if (pEvents && pEvents->events)
{
for (int i = 0; i < pEvents->numEvents; ++i)
{
VstEvent* pEvent = pEvents->events[i];
if (pEvent)
{
if (pEvent->type == kVstMidiType)
{
VstMidiEvent* pME = (VstMidiEvent*) pEvent;
IMidiMsg msg(pME->deltaFrames, pME->midiData[0], pME->midiData[1], pME->midiData[2]);
_this->ProcessMidiMsg(&msg);
//#ifdef TRACER_BUILD
// msg.LogMsg();
//#endif
}
else if (pEvent->type == kVstSysExType)
{
VstMidiSysexEvent* pSE = (VstMidiSysexEvent*) pEvent;
ISysEx sysex(pSE->deltaFrames, (const BYTE*)pSE->sysexDump, pSE->dumpBytes);
_this->ProcessSysEx(&sysex);
}
}
}
return 1;
}
return 0;
}
case effCanBeAutomated:
{
return 1;
}
case effGetInputProperties:
{
if (ptr && idx >= 0 && idx < _this->NInChannels())
{
VstPinProperties* pp = (VstPinProperties*) ptr;
pp->flags = kVstPinIsActive;
if (!(idx%2) && idx < _this->NInChannels()-1)
{
pp->flags |= kVstPinIsStereo;
}
if (_this->GetInputLabel(idx)->GetLength())
{
sprintf(pp->label, "%s", _this->GetInputLabel(idx)->Get());
}
else
{
sprintf(pp->label, "Input %d", idx + 1);
}
return 1;
}
return 0;
}
case effGetOutputProperties:
{
if (ptr && idx >= 0 && idx < _this->NOutChannels())
{
VstPinProperties* pp = (VstPinProperties*) ptr;
pp->flags = kVstPinIsActive;
if (!(idx%2) && idx < _this->NOutChannels()-1)
{
pp->flags |= kVstPinIsStereo;
}
if (_this->GetOutputLabel(idx)->GetLength())
{
sprintf(pp->label, "%s", _this->GetOutputLabel(idx)->Get());
}
else
{
sprintf(pp->label, "Output %d", idx + 1);
}
return 1;
}
return 0;
}
case effGetPlugCategory:
{
if (_this->IsInst()) return kPlugCategSynth;
return kPlugCategEffect;
}
case effProcessVarIo:
{
// VstVariableIo* pIO = (VstVariableIo*) ptr; // For offline processing (of audio files?)
return 0;
}
case effSetSpeakerArrangement:
{
VstSpeakerArrangement* pInputArr = (VstSpeakerArrangement*) value;
VstSpeakerArrangement* pOutputArr = (VstSpeakerArrangement*) ptr;
if (pInputArr)
{
int n = pInputArr->numChannels;
_this->SetInputChannelConnections(0, n, true);
_this->SetInputChannelConnections(n, _this->NInChannels() - n, false);
}
if (pOutputArr)
{
int n = pOutputArr->numChannels;
_this->SetOutputChannelConnections(0, n, true);
_this->SetOutputChannelConnections(n, _this->NOutChannels() - n, false);
}
return 1;
}
case effGetSpeakerArrangement:
{
VstSpeakerArrangement** ppInputArr = (VstSpeakerArrangement**) value;
VstSpeakerArrangement** ppOutputArr = (VstSpeakerArrangement**) ptr;
if (ppInputArr)
{
*ppInputArr = &(_this->mInputSpkrArr);
}
if (ppOutputArr)
{
*ppOutputArr = &(_this->mOutputSpkrArr);
}
return 1;
}
case effGetEffectName:
{
if (ptr)
{
strcpy((char*) ptr, _this->GetEffectName());
return 1;
}
return 0;
}
case effGetProductString:
{
if (ptr)
{
strcpy((char*) ptr, _this->GetProductName());
return 1;
}
return 0;
}
case effGetVendorString:
{
if (ptr)
{
strcpy((char*) ptr, _this->GetMfrName());
return 1;
}
return 0;
}
case effCanDo:
{
if (ptr)
{
Trace(TRACELOC, "VSTCanDo(%s)", (char*) ptr);
if (!strcmp((char*) ptr, "receiveVstTimeInfo"))
{
return 1;
}
if (_this->DoesMIDI())
{
if (!strcmp((char*) ptr, "sendVstEvents") ||
!strcmp((char*) ptr, "sendVstMidiEvent") ||
!strcmp((char*) ptr, "receiveVstEvents") ||
!strcmp((char*) ptr, "receiveVstMidiEvent")) // ||
{
//!strcmp((char*) ptr, "midiProgramNames")) {
return 1;
}
}
// Support Reaper VST extensions: http://www.reaper.fm/sdk/vst/
if (!strcmp((char*) ptr, "hasCockosExtensions"))
{
_this->mHasVSTExtensions |= VSTEXT_COCKOS;
return 0xbeef0000;
}
else if (!strcmp((char*) ptr, "hasCockosViewAsConfig"))
{
_this->mHasVSTExtensions |= VSTEXT_COCOA;
return 0xbeef0000;
}
}
return 0;
}
case effGetTailSize:
{
return _this->GetTailSize();
}
case effVendorSpecific:
{
// Support Reaper VST extensions: http://www.reaper.fm/sdk/vst/
if (idx == effGetParamDisplay && ptr)
{
if (value >= 0 && value < _this->NParams())
{
_this->GetParam(value)->GetDisplayForHost((double) opt, true, (char*) ptr);
}
return 0xbeef;
}
if (idx == kVstParameterUsesIntStep)
{
if (value >= 0 && value < _this->NParams())
{
if (_this->GetParam(value)->Type() != IParam::kTypeDouble)
{
return 0xbeef;
}
}
}
return 0;
}
case effGetProgram:
{
return _this->GetCurrentPresetIdx();
}
case effSetProgram:
{
if (_this->DoesStateChunks() == false)
{
_this->ModifyCurrentPreset(); // TODO: test, something is funny about this http://forum.cockos.com/showpost.php?p=485113&postcount=22
}
_this->RestorePreset((int) value);
return 0;
}
case effGetProgramNameIndexed:
{
strcpy((char*) ptr, _this->GetPresetName(idx));
return (CSTR_NOT_EMPTY((char*) ptr) ? 1 : 0);
}
case effSetProgramName:
{
if (ptr)
{
_this->ModifyCurrentPreset((char*) ptr);
_this->PresetsChangedByHost();
}
return 0;
}
case effGetProgramName:
{
if (ptr)
{
int idx = _this->GetCurrentPresetIdx();
strcpy((char*) ptr, _this->GetPresetName(idx));
}
return 0;
}
case effGetMidiKeyName:
{
if (ptr)
{
MidiKeyName* pMKN = (MidiKeyName*) ptr;
pMKN->keyName[0] = '\0';
if (_this->MidiNoteName(pMKN->thisKeyNumber, pMKN->keyName))
{
return 1;
}
}
return 0;
}
case effGetVstVersion:
{
return VST_VERSION;
}
case effEndSetProgram:
case effBeginSetProgram:
case effGetMidiProgramName:
case effHasMidiProgramsChanged:
case effGetMidiProgramCategory:
case effGetCurrentMidiProgram:
case effSetBypass:
default:
{
return 0;
}
}
}
