diff options
Diffstat (limited to 'VstHost.cpp')
| -rw-r--r-- | VstHost.cpp | 581 |
1 files changed, 581 insertions, 0 deletions
diff --git a/VstHost.cpp b/VstHost.cpp new file mode 100644 index 0000000..d93f7f9 --- /dev/null +++ b/VstHost.cpp @@ -0,0 +1,581 @@ +#include "stdafx.h"
+#include "m_pd.h"
+#include "EditorThread.h"
+#include "VstHost.h"
+#include "PopupWindow.h"
+#include "vst\aeffeditor.h"
+#include "vst\aeffectx.h"
+
+
+VstTimeInfo VSTPlugin::_timeInfo;
+
+float VSTPlugin::sample_rate = 44100;
+
+
+////////////////////
+//
+/////////////////////
+VSTPlugin::VSTPlugin()
+{
+ queue_size=0;
+ _sDllName = NULL;
+ h_dll=NULL;
+ instantiated=false; // Constructin' with no instance
+ overwrite = false;
+ w = GetForegroundWindow();
+ show_params = false;
+ _midichannel = 0;
+ edited = false;
+}
+
+VSTPlugin::~VSTPlugin()
+{
+ Free(); // Call free
+ delete _sDllName; // if _sDllName = NULL , the operation does nothing -> it's safe.
+}
+
+int VSTPlugin::Instance( const char *dllname)
+{
+ h_dll=LoadLibrary(dllname);
+
+ if(h_dll==NULL)
+ {
+ return VSTINSTANCE_ERR_NO_VALID_FILE;
+ }
+ post("Loaded library %s" , dllname);
+ PVSTMAIN main = (PVSTMAIN)GetProcAddress(h_dll,"main");
+ if(!main)
+ {
+ FreeLibrary(h_dll);
+ _pEffect=NULL;
+ instantiated=false;
+ return VSTINSTANCE_ERR_NO_VST_PLUGIN;
+ }
+ //post("Found main function - about to call it");
+ //This calls the "main" function and receives the pointer to the AEffect structure.
+ _pEffect = main((audioMasterCallback)&(this->Master));
+
+ if(!_pEffect)
+ {
+ post("VST plugin : unable to create effect");
+ FreeLibrary(h_dll);
+ _pEffect=NULL;
+ instantiated=false;
+ return VSTINSTANCE_ERR_REJECTED;
+ }
+
+ if( _pEffect->magic!=kEffectMagic)
+ {
+ post("VST plugin : Instance query rejected by 0x%.8X\n",(int)_pEffect);
+ FreeLibrary(h_dll);
+ _pEffect=NULL;
+ instantiated=false;
+ return VSTINSTANCE_ERR_REJECTED;
+ }
+
+ //post("VST plugin : Instanced at (Effect*): %.8X\n",(int)_pEffect);
+
+ //init plugin
+ _pEffect->user = this;
+ Dispatch( effOpen , 0, 0, NULL, 0.0f);
+ Dispatch( effSetProgram , 0, 0, NULL, 0.0f);
+// Dispatch( effMainsChanged, 0, 1, NULL, 0.0f);
+
+ //************************************set samplerate and stream size here
+ // we get it when we init our DSP
+
+// Dispatch( effSetSampleRate, 0, 0, NULL, (float)Global::pConfig->_pOutputDriver->_samplesPerSec);
+// Dispatch( effSetBlockSize, 0, STREAM_SIZE, NULL, 0.0f);
+
+
+ if (!Dispatch( effGetProductString, 0, 0, &_sProductName, 0.0f))
+ {
+ CString str1(dllname);
+ CString str2 = str1.Mid(str1.ReverseFind('\\')+1);
+ int snip = str2.Find('.');
+ if ( snip != -1 )
+ {
+ str1 = str2.Left( snip );
+ }
+ else
+ {
+ str1 = str2;
+ }
+ strcpy(_sProductName,str1);
+
+ }
+
+ if (!_pEffect->dispatcher(_pEffect, effGetVendorString, 0, 0, &_sVendorName, 0.0f))
+ {
+ strcpy(_sVendorName, "Unknown vendor");
+ }
+ _version = _pEffect->version;
+ _isSynth = (_pEffect->flags & effFlagsIsSynth)?true:false;
+ overwrite = (_pEffect->flags & effFlagsCanReplacing)?true:false;
+ editor = (_pEffect->flags & effFlagsHasEditor)?true:false;
+
+ if ( _sDllName != NULL ) delete _sDllName;
+ _sDllName = new char[strlen(dllname)+1];
+ sprintf(_sDllName,dllname);
+
+
+
+
+ //keep plugin name
+ instantiated=true;
+
+ return VSTINSTANCE_NO_ERROR;
+}
+
+int VSTPlugin::getNumInputs( void )
+{
+ return _pEffect->numInputs;
+}
+
+int VSTPlugin::getNumOutputs( void )
+{
+ return _pEffect->numOutputs;
+}
+
+
+void VSTPlugin::Create(VSTPlugin *plug)
+{
+ h_dll=plug->h_dll;
+ _pEffect=plug->_pEffect;
+ _pEffect->user=this;
+ Dispatch( effMainsChanged, 0, 1, NULL, 0.0f);
+// strcpy(_editName,plug->_editName); On current implementation, this replaces the right one.
+ strcpy(_sProductName,plug->_sProductName);
+ strcpy(_sVendorName,plug->_sVendorName);
+
+ _sDllName = new char[strlen(plug->_sDllName)+1];
+ strcpy(_sDllName,plug->_sDllName);
+
+ _isSynth=plug->_isSynth;
+ _version=plug->_version;
+
+ plug->instantiated=false; // We are "stoling" the plugin from the "plug" object so this
+ // is just a "trick" so that when destructing the "plug", it
+ // doesn't unload the Dll.
+ instantiated=true;
+}
+
+void VSTPlugin::Free() // Called also in destruction
+{
+ if(instantiated)
+ {
+ instantiated=false;
+ post("VST plugin : Free query 0x%.8X\n",(int)_pEffect);
+ _pEffect->user = NULL;
+ Dispatch( effMainsChanged, 0, 0, NULL, 0.0f);
+ Dispatch( effClose, 0, 0, NULL, 0.0f);
+// delete _pEffect; // <- Should check for the necessity of this command.
+ _pEffect=NULL;
+ FreeLibrary(h_dll);
+ }
+}
+
+void VSTPlugin::Init( float samplerate , float blocksize )
+{
+ sample_rate = samplerate;
+ Dispatch(effOpen , 0, 0, NULL, 0.f);
+ Dispatch(effMainsChanged, 0, 1, NULL, 0.f);
+ Dispatch(effSetSampleRate, 0, 0, 0, (float) sample_rate );
+ Dispatch(effSetBlockSize, 0, blocksize, NULL, 0.f );
+}
+
+
+bool VSTPlugin::DescribeValue(int p,char* psTxt)
+{
+ int parameter = p;
+ if(instantiated)
+ {
+ if(parameter<_pEffect->numParams)
+ {
+// char par_name[64];
+ char par_display[64];
+ char par_label[64];
+
+// Dispatch(effGetParamName,parameter,0,par_name,0.0f);
+ Dispatch(effGetParamDisplay,parameter,0,par_display,0.0f);
+ Dispatch(effGetParamLabel,parameter,0,par_label,0.0f);
+// sprintf(psTxt,"%s:%s%s",par_name,par_display,par_label);
+ sprintf(psTxt,"%s%s",par_display,par_label);
+ return true;
+ }
+ else sprintf(psTxt,"NumParams Exeeded");
+ }
+ else sprintf(psTxt,"Not loaded");
+
+ return false;
+}
+
+bool VSTPlugin::SetParameter(int parameter, float value)
+{
+ if(instantiated)
+ {
+ if (( parameter >= 0 ) && (parameter<=_pEffect->numParams))
+ {
+ _pEffect->setParameter(_pEffect,parameter,value);
+ return true;
+ }
+ }
+
+ return false;
+}
+
+bool VSTPlugin::SetParameter(int parameter, int value)
+{
+ return SetParameter(parameter,value/65535.0f);
+}
+
+int VSTPlugin::GetCurrentProgram()
+{
+ if(instantiated)
+ return Dispatch(effGetProgram,0,0,NULL,0.0f);
+ else
+ return 0;
+}
+
+void VSTPlugin::SetCurrentProgram(int prg)
+{
+ if(instantiated)
+ Dispatch(effSetProgram,0,prg,NULL,0.0f);
+}
+
+bool VSTPlugin::AddMIDI(unsigned char data0,unsigned char data1,unsigned char data2)
+{
+ if (instantiated)
+ {
+ VstMidiEvent* pevent=&midievent[queue_size];
+
+ pevent->type = kVstMidiType;
+ pevent->byteSize = 24;
+ pevent->deltaFrames = 0;
+ pevent->flags = 0;
+ pevent->detune = 0;
+ pevent->noteLength = 0;
+ pevent->noteOffset = 0;
+ pevent->reserved1 = 0;
+ pevent->reserved2 = 0;
+ pevent->noteOffVelocity = 0;
+ pevent->midiData[0] = data0;
+ pevent->midiData[1] = data1;
+ pevent->midiData[2] = data2;
+ pevent->midiData[3] = 0;
+
+ if ( queue_size < MAX_EVENTS ) queue_size++;
+ SendMidi();
+ return true;
+ }
+ else return false;
+}
+
+
+void VSTPlugin::SendMidi()
+{
+ if(/*instantiated &&*/ queue_size>0)
+ {
+ // Prepare MIDI events and free queue dispatching all events
+ events.numEvents = queue_size;
+ events.reserved = 0;
+ for(int q=0;q<queue_size;q++) events.events[q] = (VstEvent*)&midievent[q];
+
+ Dispatch(effProcessEvents, 0, 0, &events, 0.0f);
+ queue_size=0;
+ }
+}
+
+
+void VSTPlugin::processReplacing( float **inputs, float **outputs, long sampleframes )
+{
+ _pEffect->processReplacing( _pEffect , inputs , outputs , sampleframes );
+
+}
+
+void VSTPlugin::process( float **inputs, float **outputs, long sampleframes )
+{
+ _pEffect->process( _pEffect , inputs , outputs , sampleframes );
+}
+
+
+// Host callback dispatcher
+long VSTPlugin::Master(AEffect *effect, long opcode, long index, long value, void *ptr, float opt)
+{
+ //post("VST plugin call to host dispatcher: Eff: 0x%.8X, Opcode = %d, Index = %d, Value = %d, PTR = %.8X, OPT = %.3f\n",(int)effect, opcode,index,value,(int)ptr,opt);
+ //st( "audioMasterWantMidi %d " , audioMasterWantMidi);
+
+ // Support opcodes
+ switch(opcode)
+ {
+ case audioMasterAutomate:
+ return 0; // index, value, returns 0
+
+ case audioMasterVersion:
+ return 9; // vst version, currently 7 (0 for older)
+
+ case audioMasterCurrentId:
+ return 'AASH'; // returns the unique id of a plug that's currently loading
+
+ case audioMasterIdle:
+ effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
+ return 0; // call application idle routine (this will call effEditIdle for all open editors too)
+
+ case audioMasterPinConnected:
+ return false; // inquire if an input or output is beeing connected;
+
+ case audioMasterWantMidi:
+ return 0;
+
+ case audioMasterProcessEvents:
+ return 0; // Support of vst events to host is not available
+
+ case audioMasterGetTime:
+ memset(&_timeInfo, 0, sizeof(_timeInfo));
+ _timeInfo.samplePos = 0;
+ _timeInfo.sampleRate = sample_rate;
+ return (long)&_timeInfo;
+
+
+ case audioMasterTempoAt:
+ return 0;
+
+ case audioMasterNeedIdle:
+ effect->dispatcher(effect, effIdle, 0, 0, NULL, 0.0f);
+ return 1;
+
+ case audioMasterGetSampleRate:
+ return sample_rate;
+
+ case audioMasterGetVendorString: // Just fooling version string
+ strcpy((char*)ptr,"Steinberg");
+ return 0;
+
+ case audioMasterGetVendorVersion:
+ return 5000; // HOST version 5000
+
+ case audioMasterGetProductString: // Just fooling product string
+ strcpy((char*)ptr,"Cubase 5.0");
+ return 0;
+
+ case audioMasterVendorSpecific:
+ {
+ return 0;
+ }
+
+
+ case audioMasterGetLanguage:
+ return kVstLangEnglish;
+
+ case audioMasterUpdateDisplay:
+ post("audioMasterUpdateDisplay");
+ effect->dispatcher(effect, effEditIdle, 0, 0, NULL, 0.0f);
+ return 0;
+
+
+ case audioMasterSetTime: post("VST master dispatcher: Set Time");break;
+ case audioMasterGetNumAutomatableParameters: post("VST master dispatcher: GetNumAutPar");break;
+ case audioMasterGetParameterQuantization: post("VST master dispatcher: ParamQuant");break;
+ case audioMasterIOChanged: post("VST master dispatcher: IOchanged");break;
+ case audioMasterSizeWindow: post("VST master dispatcher: Size Window");break;
+ case audioMasterGetBlockSize: post("VST master dispatcher: GetBlockSize");break;
+ case audioMasterGetInputLatency: post("VST master dispatcher: GetInLatency");break;
+ case audioMasterGetOutputLatency: post("VST master dispatcher: GetOutLatency");break;
+ case audioMasterGetPreviousPlug: post("VST master dispatcher: PrevPlug");break;
+ case audioMasterGetNextPlug: post("VST master dispatcher: NextPlug");break;
+ case audioMasterWillReplaceOrAccumulate: post("VST master dispatcher: WillReplace"); break;
+ case audioMasterGetCurrentProcessLevel: return 0; break;
+ case audioMasterGetAutomationState: post("VST master dispatcher: GetAutState");break;
+ case audioMasterOfflineStart: post("VST master dispatcher: Offlinestart");break;
+ case audioMasterOfflineRead: post("VST master dispatcher: Offlineread");break;
+ case audioMasterOfflineWrite: post("VST master dispatcher: Offlinewrite");break;
+ case audioMasterOfflineGetCurrentPass: post("VST master dispatcher: OfflineGetcurrentpass");break;
+ case audioMasterOfflineGetCurrentMetaPass: post("VST master dispatcher: GetGetCurrentMetapass");break;
+ case audioMasterSetOutputSampleRate: post("VST master dispatcher: Setsamplerate");break;
+ case audioMasterGetSpeakerArrangement: post("VST master dispatcher: Getspeaker");break;
+ case audioMasterSetIcon: post("VST master dispatcher: seticon");break;
+ case audioMasterCanDo: post("VST master dispatcher: Can Do");break;
+ case audioMasterOpenWindow: post("VST master dispatcher: OpenWindow");break;
+ case audioMasterCloseWindow: post("VST master dispatcher: CloseWindow");break;
+ case audioMasterGetDirectory: post("VST master dispatcher: GetDirectory");break;
+// case audioMasterUpdateDisplay: post("VST master dispatcher: audioMasterUpdateDisplay");break;
+
+ default: post("VST master dispatcher: undefed: %d , %d",opcode , effKeysRequired ) ;break;
+ }
+
+
+ return 0;
+}
+
+bool VSTPlugin::AddNoteOn( unsigned char note,unsigned char speed,unsigned char midichannel)
+{
+ if(instantiated)
+ {
+ VstMidiEvent* pevent=&midievent[queue_size];
+
+ pevent->type = kVstMidiType;
+ pevent->byteSize = 24;
+ pevent->deltaFrames = 0;
+ pevent->flags = 0;
+ pevent->detune = 0;
+ pevent->noteLength = 0;
+ pevent->noteOffset = 0;
+ pevent->reserved1 = 0;
+ pevent->reserved2 = 0;
+ pevent->noteOffVelocity = 0;
+ pevent->midiData[0] = (char)MIDI_NOTEON | midichannel; // Midi On
+ pevent->midiData[1] = note;
+ pevent->midiData[2] = speed;
+ pevent->midiData[3] = 0;
+
+ if ( queue_size < MAX_EVENTS ) queue_size++;
+ SendMidi();
+ return true;
+ }
+ else return false;
+
+
+}
+
+bool VSTPlugin::AddNoteOff( unsigned char note,unsigned char midichannel)
+{
+ if (instantiated)
+ {
+
+ VstMidiEvent* pevent=&midievent[queue_size];
+
+ pevent->type = kVstMidiType;
+ pevent->byteSize = 24;
+ pevent->deltaFrames = 0;
+ pevent->flags = 0;
+ pevent->detune = 0;
+ pevent->noteLength = 0;
+ pevent->noteOffset = 0;
+ pevent->reserved1 = 0;
+ pevent->reserved2 = 0;
+ pevent->noteOffVelocity = 0;
+ pevent->midiData[0] = (char)MIDI_NOTEOFF | midichannel; // Midi Off
+ pevent->midiData[1] = note;
+ pevent->midiData[2] = 0;
+ pevent->midiData[3] = 0;
+
+ if ( queue_size < MAX_EVENTS ) queue_size++;
+
+ SendMidi();
+ return true;
+
+ }
+ else return false;
+}
+
+
+bool VSTPlugin::replace()
+{
+ return overwrite;
+}
+
+
+void VSTPlugin::edit()
+{
+ if(instantiated)
+ {
+ if ( ( editor ) && (!edited))
+ {
+ edited = true;
+ //b = (CEditorThread*) AfxBeginThread(RUNTIME_CLASS( CEditorThread ) );
+ b = new CEditorThread();
+ b->SetPlugin( this );
+ b->CreateThread();
+ }
+ }
+}
+
+void VSTPlugin::EditorIdle()
+{
+ Dispatch(effEditIdle,0,0, w,0.0f);
+}
+
+RECT VSTPlugin::GetEditorRect()
+{
+ RECT ret;
+ ERect *r;
+ Dispatch(effEditGetRect,0,0, &r,0.0f);
+ ret.top = r->top;
+ ret.bottom = r->bottom;
+ ret.left = r->left;
+ ret.right = r->right;
+ return ret;
+}
+
+void VSTPlugin::SetEditWindow(HWND h)
+{
+ w = h;
+ Dispatch(effEditOpen,0,0, w,0.0f);
+}
+
+void VSTPlugin::OnEditorCLose()
+{
+ Dispatch(effEditClose,0,0, w,0.0f);
+}
+
+void VSTPlugin::SetShowParameters(bool s)
+{
+ show_params = s;
+}
+
+bool VSTPlugin::ShowParams()
+{
+ return show_params;
+}
+
+void VSTPlugin::AddAftertouch(int value)
+{
+ if (value < 0) value = 0; else if (value > 127) value = 127;
+ AddMIDI( (char)MIDI_NOTEOFF | _midichannel , value );
+}
+
+void VSTPlugin::AddPitchBend(int value)
+{
+ AddMIDI( MIDI_PITCHBEND + (_midichannel & 0xf) , ((value>>7) & 127), (value & 127));
+}
+
+void VSTPlugin::AddProgramChange(int value)
+{
+ if (value < 0) value = 0; else if (value > 127) value = 127;
+ AddMIDI( MIDI_PROGRAMCHANGE + (_midichannel & 0xf), value, 0);
+}
+
+void VSTPlugin::AddControlChange(int control, int value)
+{
+ if (control < 0) control = 0; else if (control > 127) control = 127;
+ if (value < 0) value = 0; else if (value > 127) value = 127;
+ AddMIDI( MIDI_CONTROLCHANGE + (_midichannel & 0xf), control, value);
+}
+
+
+bool VSTPlugin::GetProgramName( int cat , int p, char *buf)
+{
+ int parameter = p;
+ if(instantiated)
+ {
+ if(parameter<NumPrograms())
+ {
+ Dispatch(effGetProgramNameIndexed,parameter,cat,buf,0.0f);
+ return true;
+ }
+ }
+ return false;
+}
+
+int VSTPlugin::GetNumCategories()
+{
+ if(instantiated)
+ return Dispatch(effGetNumProgramCategories,0,0,NULL,0.0f);
+ else
+ return 0;
+}
+
+void VSTPlugin::StopEditing()
+{
+ edited = false;
+}
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