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/*
vst~ - VST plugin object for PD
based on the work of Jarno Seppänen and Mark Williamson
Copyright (c)2003-2004 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#ifndef __VSTHOST_H
#define __VSTHOST_H
#include <flext.h>
#include "AEffectx.h"
#include "AEffEditor.hpp"
#include <string>
#if FLEXT_OS == FLEXT_OS_WIN
#include <windows.h>
typedef HWND WHandle;
#elif FLEXT_OS == FLEXT_OS_MAC
#include <CoreServices/CoreServices.h>
typedef Handle WHandle;
#else
#error Platform not supported!
#endif
#define MAX_EVENTS 64
#define MAX_INOUTS 8
#define VSTINSTANCE_ERR_NO_VALID_FILE -1
#define VSTINSTANCE_ERR_NO_VST_PLUGIN -2
#define VSTINSTANCE_ERR_REJECTED -3
#define VSTINSTANCE_NO_ERROR 0
#define MIDI_NOTEON 144
#define MIDI_NOTEOFF 128
#define MIDI_POLYAFTERTOUCH 160
#define MIDI_CONTROLCHANGE 176
#define MIDI_PROGRAMCHANGE 192
#define MIDI_AFTERTOUCH 208
#define MIDI_PITCHBEND 224
class VSTPlugin:
public flext
{
public:
VSTPlugin();
~VSTPlugin();
int Instance(const char *dllname);
// void Create(VSTPlugin *plug);
void Free();
void DspInit(float samplerate,int blocksize);
bool Is() const { return _pEffect != NULL; }
long GetVersion() const { return _pEffect?_pEffect->version:0; }
bool IsSynth() const { return HasFlags(effFlagsIsSynth); }
bool IsReplacing() const { return HasFlags(effFlagsCanReplacing); }
bool HasEditor() const { return HasFlags(effFlagsHasEditor); }
const char *GetName() const { return _sProductName; }
const char *GetVendorName() const { return _sVendorName; }
const char *GetDllName() const { return _sDllName.c_str(); }
int GetNumInputs() const { return _pEffect?_pEffect->numInputs:0; }
int GetNumOutputs() const { return _pEffect?_pEffect->numOutputs:0; }
int GetNumParams() const { return _pEffect?_pEffect->numParams:0; }
void GetParamName(int numparam,char *name) const;
void GetParamValue(int numparam,char *parval) const;
float GetParamValue(int numparam) const;
// scan plugin names (can take a _long_ time!!)
void ScanParams(int i = -1);
// get number of scanned parameters
int ScannedParams() const { return paramnamecnt; }
// get index of named (scanned) parameter... -1 if not found
int GetParamIx(const char *p) const;
bool SetParamFloat(int parameter, float value);
bool SetParamInt(int parameter, int value) { return SetParamFloat(parameter,value/65535.0f); }
void SetCurrentProgram(int prg) { Dispatch(effSetProgram,0,prg); }
int GetCurrentProgram() const { return Dispatch(effGetProgram); }
int GetNumPrograms() const { return _pEffect->numPrograms; }
int GetNumCategories() const { return Dispatch(effGetNumProgramCategories); }
bool GetProgramName( int cat, int p , char* buf) const;
bool AddMIDI(unsigned char data0,unsigned char data1=0,unsigned char data2=0);
bool AddNoteOn( unsigned char note,unsigned char speed,unsigned char midichannel=0);
bool AddNoteOff( unsigned char note,unsigned char midichannel=0);
void AddControlChange( int control , int value );
void AddProgramChange( int value );
void AddPitchBend( int value );
void AddAftertouch( int value );
void Edit(bool open);
void StartEditing(WHandle h );
void StopEditing();
bool IsEdited() const { return hwnd != NULL; }
WHandle EditorHandle() const { return hwnd; }
void GetEditorRect(ERect &er) const { ERect *r; Dispatch(effEditGetRect,0,0,&r); er = *r; }
void EditorIdle() { Dispatch(effEditIdle); }
void Visible(bool vis);
bool IsVisible() const;
void Paint(ERect &r) const { Dispatch(effEditDraw,0,0,&r); }
void processReplacing( float **inputs, float **outputs, long sampleframes );
void process( float **inputs, float **outputs, long sampleframes );
long Dispatch(long opCode, long index = 0, long value = 0, void *ptr = NULL, float opt = 0) const
{
return Is()?_pEffect->dispatcher(_pEffect, opCode, index, value, ptr, opt):0;
}
static long VSTCALLBACK Master(AEffect *effect, long opcode, long index, long value, void *ptr, float opt);
void SetPos(int x,int y,bool upd = true);
void SetX(int x,bool upd = true) { SetPos(x,posy,upd); }
void SetY(int y,bool upd = true) { SetPos(posx,y,upd); }
int GetX() const { return posx; }
int GetY() const { return posy; }
void SetCaption(bool b);
bool GetCaption() const { return caption; }
void SetTitle(const char *t);
const char *GetTitle() const { return title.c_str(); }
protected:
#if FLEXT_OS == FLEXT_OS_WIN
HMODULE h_dll;
#elif FLEXT_OS == FLEXT_OS_MAC
void *h_dll;
#else
#error
#endif
WHandle hwnd;
AEffect *_pEffect;
inline long GetFlags() const { return _pEffect?_pEffect->flags:0; }
inline bool HasFlags(long msk) const { return _pEffect && (_pEffect->flags&msk); }
char _sProductName[300];
char _sVendorName[300];
std::string _sDllName; // Contains dll name
struct NameCmp:
std::less<std::string>
{
bool operator()(const std::string &a,const std::string &b) const { return a.compare(b) < 0; }
};
typedef std::map<std::string,int,NameCmp> NameMap;
int paramnamecnt;
NameMap paramnames;
/*
float *inputs[MAX_INOUTS];
float *outputs[MAX_INOUTS];
*/
// static VstTimeInfo _timeInfo;
VstMidiEvent midievent[MAX_EVENTS];
VstEvents events;
int queue_size;
// float sample_rate;
void SendMidi();
char _midichannel;
int posx,posy; // Window position
bool caption; // Window border
std::string title; // Window title
};
#endif
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