--- /dev/null
+/************************************************************************
+
+ IMPORTANT NOTE : this file contains two clearly delimited sections :
+ the ARCHITECTURE section (in two parts) and the USER section. Each section
+ is governed by its own copyright and license. Please check individually
+ each section for license and copyright information.
+*************************************************************************/
+
+/*******************BEGIN ARCHITECTURE SECTION (part 1/2)****************/
+
+/************************************************************************
+ ************************************************************************
+ FAUST Architecture File
+ Copyright (C) 2007-2011 Julius Smith
+ All rights reserved.
+ ----------------------------BSD License------------------------------
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+ * Neither the name of Julius Smith nor the names of its
+ contributors may be used to endorse or promote products derived
+ from this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ OF THE POSSIBILITY OF SUCH DAMAGE.
+
+ ----------------------------VST SDK----------------------------------
+ In order to compile a VST (TM) plugin with this architecture file
+ you will need the proprietary VST SDK from Steinberg. Please check
+ the corresponding license.
+
+ ************************************************************************
+ ************************************************************************/
+
+/********************************************************************
+ * vsti-mono.cpp - Monaural VSTi-2.4 wrapper for the FAUST language.
+ *
+ * Usage: faust -a vsti-mono.cpp myfaustprog.dsp
+ *
+ * By Julius Smith (http://ccrma.stanford.edu/~jos/), based on vst.cpp
+ * by remy muller <remy.muller at ircam.fr>
+ * (http://www.smartelectronix.com/~mdsp/). Essentially, vst.cpp was
+ * first edited to look more like the "again" programming sample that
+ * comes with the VST-2.4 SDK from Steinberg. Next, features from the
+ * "vstxsynth" program sample were added to give simple MIDI synth
+ * support analogous to that of faust2pd, except that only one voice
+ * is supported. (If the Faust patch has any input signals, this
+ * architecture file should reduce to vst2p4.cpp --- i.e., basic VST
+ * plugin support.) As with faust2pd, to obtain MIDI control via
+ * NoteOn/Off, Velocity, and KeyNumber, there must be a button named
+ * "gate" and sliders (or numeric entries) named "gain" and "freq" in
+ * the Faust patch specified in myfaustprog.dsp.
+ *
+ * NOTES:
+ * Relies on automatically generated slider GUI for VST plugins.
+ * - Horizontal and vertical sliders mapped to "vstSlider"
+ * - Numeric Entries similarly converted to "vstSlider"
+ * - No support for bar graphs or additional numeric and text displays
+ * - Tested on the Muse Receptor Pro 1.0, System Version 1.6.20070717,
+ * using Visual C++ 2008 Express Edition
+ * (part of the Microsoft Visual Studio 2008, Beta 2)
+ * - Reference:
+ * http://ccrma.stanford.edu/realsimple/faust/Generating_VST_Plugin_Faust.html
+ *
+ * FAUST
+ * Copyright (C) 2003-2007 GRAME, Centre National de Creation Musicale
+ * http://www.grame.fr/
+ *
+ ********************************************************************/
+
+// Suggestion: Faust could replace all leading comments in this file
+// by the following shorter comment:
+
+/********************************************************************
+ * C++ source generated by the following command line:
+ *
+ * faust -a vsti.cpp name.dsp -o name-vsti.cpp
+ *
+ ********************************************************************/
+
+// (where the filenames could be really right, and the path to vsti.cpp
+// could be included as well.)
+
+#include <stdlib.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <math.h>
+#include <errno.h>
+#include <time.h>
+//#include <unistd.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <string>
+#include <vector>
+#include <math.h>
+
+using namespace std ;
+
+// There is a bug with powf() when cross compiling with mingw
+// the following macro avoid the problem
+#ifdef WIN32
+#define powf(x,y) pow(x,y)
+#define expf(x) exp(x)
+#endif
+
+// On Intel set FZ (Flush to Zero) and DAZ (Denormals Are Zero)
+// flags to avoid costly denormals
+#ifdef __SSE__
+ #include <xmmintrin.h>
+ #ifdef __SSE2__
+ #define AVOIDDENORMALS _mm_setcsr(_mm_getcsr() | 0x8040)
+ #else
+ #define AVOIDDENORMALS _mm_setcsr(_mm_getcsr() | 0x8000)
+ #endif
+#else
+ #define AVOIDDENORMALS
+#endif
+
+struct Meta
+{
+ void declare (const char* key, const char* value) { }
+};
+
+
+#ifdef __GNUC__
+
+//-------------------------------------------------------------------
+// Generic min and max using gcc extensions
+//-------------------------------------------------------------------
+
+#define max(x,y) ((x)>?(y))
+#define min(x,y) ((x)<?(y))
+
+//abs(x) should be already predefined
+
+#else
+
+//-------------------------------------------------------------------
+// Generic min and max using c++ inline
+//-------------------------------------------------------------------
+
+inline int max (unsigned int a, unsigned int b) { return (a>b) ? a : b; }
+inline int max (int a, int b) { return (a>b) ? a : b; }
+
+inline long max (long a, long b) { return (a>b) ? a : b; }
+inline long max (int a, long b) { return (a>b) ? a : b; }
+inline long max (long a, int b) { return (a>b) ? a : b; }
+
+inline float max (float a, float b) { return (a>b) ? a : b; }
+inline float max (int a, float b) { return (a>b) ? a : b; }
+inline float max (float a, int b) { return (a>b) ? a : b; }
+inline float max (long a, float b) { return (a>b) ? a : b; }
+inline float max (float a, long b) { return (a>b) ? a : b; }
+
+inline double max (double a, double b) { return (a>b) ? a : b; }
+inline double max (int a, double b) { return (a>b) ? a : b; }
+inline double max (double a, int b) { return (a>b) ? a : b; }
+inline double max (long a, double b) { return (a>b) ? a : b; }
+inline double max (double a, long b) { return (a>b) ? a : b; }
+inline double max (float a, double b) { return (a>b) ? a : b; }
+inline double max (double a, float b) { return (a>b) ? a : b; }
+
+inline int min (int a, int b) { return (a<b) ? a : b; }
+
+inline long min (long a, long b) { return (a<b) ? a : b; }
+inline long min (int a, long b) { return (a<b) ? a : b; }
+inline long min (long a, int b) { return (a<b) ? a : b; }
+
+inline float min (float a, float b) { return (a<b) ? a : b; }
+inline float min (int a, float b) { return (a<b) ? a : b; }
+inline float min (float a, int b) { return (a<b) ? a : b; }
+inline float min (long a, float b) { return (a<b) ? a : b; }
+inline float min (float a, long b) { return (a<b) ? a : b; }
+
+inline double min (double a, double b) { return (a<b) ? a : b; }
+inline double min (int a, double b) { return (a<b) ? a : b; }
+inline double min (double a, int b) { return (a<b) ? a : b; }
+inline double min (long a, double b) { return (a<b) ? a : b; }
+inline double min (double a, long b) { return (a<b) ? a : b; }
+inline double min (float a, double b) { return (a<b) ? a : b; }
+inline double min (double a, float b) { return (a<b) ? a : b; }
+
+#endif
+
+// abs is now predefined
+//template<typename T> T abs (T a) { return (a<T(0)) ? -a : a; }
+
+inline int lsr (int x, int n) { return int(((unsigned int)x) >> n); }
+
+inline int int2pow2 (int x) { int r=0; while ((1<<r)<x) r++; return r; }
+
+/******************************************************************************
+*******************************************************************************
+*
+* VECTOR INTRINSICS
+*
+*******************************************************************************
+*******************************************************************************/
+
+//inline void *aligned_calloc(size_t nmemb, size_t size) { return (void*)((unsigned)(calloc((nmemb*size)+15,sizeof(char)))+15 & 0xfffffff0); }
+//inline void *aligned_calloc(size_t nmemb, size_t size) { return (void*)((size_t)(calloc((nmemb*size)+15,sizeof(char)))+15 & ~15); }
+
+<<includeIntrinsic>>
+
+/******************************************************************************
+*******************************************************************************
+*
+* USER INTERFACE
+*
+*******************************************************************************
+*******************************************************************************/
+
+class UI
+{
+ bool fStopped;
+
+public:
+
+ UI() : fStopped(false) {}
+ virtual ~UI() {}
+
+ virtual void addButton(char* label, float* zone) = 0;
+ virtual void addToggleButton(char* label, float* zone) = 0;
+ virtual void addCheckButton(char* label, float* zone) = 0;
+ virtual void addVerticalSlider(char* label, float* zone, float init, float min, float max, float step) = 0;
+ virtual void addHorizontalSlider(char* label, float* zone, float init, float min, float max, float step) = 0;
+ virtual void addNumEntry(char* label, float* zone, float init, float min, float max, float step) = 0;
+
+ virtual void addNumDisplay(char* label, float* zone, int precision) = 0;
+ virtual void addTextDisplay(char* label, float* zone, char* names[], float min, float max) = 0;
+ virtual void addHorizontalBargraph(char* label, float* zone, float min, float max) = 0;
+ virtual void addVerticalBargraph(char* label, float* zone, float min, float max) = 0;
+
+ virtual void openFrameBox(char* label) = 0;
+ virtual void openTabBox(char* label) = 0;
+ virtual void openHorizontalBox(char* label) = 0;
+ virtual void openVerticalBox(char* label) = 0;
+ virtual void closeBox() = 0;
+
+ virtual void run() {};
+
+ void stop() { fStopped = true; }
+ bool stopped() { return fStopped; }
+
+ virtual void declare(float* zone, const char* key, const char* value) {}
+};
+
+
+/******************************************************************************
+*******************************************************************************
+*
+* FAUST DSP
+*
+*******************************************************************************
+*******************************************************************************/
+
+
+
+//----------------------------------------------------------------
+// Base dsp class for this architecture
+//----------------------------------------------------------------
+
+class dsp {
+
+protected:
+
+ int fSamplingFreq;
+
+public:
+
+ dsp() {}
+ virtual ~dsp() {}
+ virtual int getNumInputs() = 0;
+ virtual int getNumOutputs() = 0;
+ virtual void buildUserInterface(UI* interface) = 0;
+ virtual void init(int samplingRate) = 0;
+ virtual void compute(int len, float** inputs, float** outputs) = 0;
+};
+
+/********************END ARCHITECTURE SECTION (part 1/2)****************/
+
+/**************************BEGIN USER SECTION **************************/
+
+<<includeclass>>
+
+/***************************END USER SECTION ***************************/
+
+/*******************BEGIN ARCHITECTURE SECTION (part 2/2)***************/
+
+/******************************************************************************
+ *
+ * VST wrapper
+ *
+ ******************************************************************************/
+
+#include "audioeffectx.h"
+
+class vstUI;
+
+//------------------------------------------------------------------------------
+// Faust class prototype
+//------------------------------------------------------------------------------
+class Faust : public AudioEffectX
+{
+public:
+ Faust(audioMasterCallback audioMaster, mydsp* dspi, vstUI* dspUIi);
+ virtual ~Faust();
+
+ virtual void processReplacing (float **inputs, float **outputs, VstInt32 sampleFrames);
+ virtual VstInt32 processEvents (VstEvents* events);
+
+ virtual void setProgram (VstInt32 program);
+ virtual void setProgramName (char *name);
+ virtual void getProgramName (char *name);
+ virtual bool getProgramNameIndexed (VstInt32 category, VstInt32 index, char *text);
+
+ virtual void setParameter (VstInt32 index, float value);
+ virtual float getParameter (VstInt32 index);
+ virtual void getParameterLabel (VstInt32 index, char *label);
+ virtual void getParameterDisplay (VstInt32 index, char *text);
+ virtual void getParameterName (VstInt32 index, char *text);
+
+ virtual void setSampleRate (float sampleRate);
+
+ virtual bool getInputProperties (VstInt32 index, VstPinProperties *properties);
+ virtual bool getOutputProperties (VstInt32 index, VstPinProperties *properties);
+
+ virtual bool getEffectName (char *name);
+ virtual bool getVendorString (char *text);
+ virtual bool getProductString (char *text);
+ virtual VstInt32 getVendorVersion ();
+ virtual VstInt32 canDo (char *text);
+
+ virtual VstInt32 getNumMidiInputChannels ();
+ virtual VstInt32 getNumMidiOutputChannels ();
+
+ virtual VstInt32 getMidiProgramName (VstInt32 channel, MidiProgramName *midiProgramName);
+ virtual VstInt32 getCurrentMidiProgram (VstInt32 channel, MidiProgramName *currentProgram);
+ virtual VstInt32 getMidiProgramCategory (VstInt32 channel, MidiProgramCategory *category);
+
+private:
+ mydsp* dsp;
+ vstUI* dspUI;
+
+ // For synths:
+ bool noteIsOn;
+ VstInt32 currentNote;
+ VstInt32 currentVelocity;
+ VstInt32 currentDelta;
+
+ void initProcess ();
+ void noteOn (VstInt32 note, VstInt32 velocity, VstInt32 delta);
+ void noteOff ();
+ void fillProgram (VstInt32 channel, VstInt32 prg, MidiProgramName* mpn);
+
+ char programName[kVstMaxProgNameLen + 1];
+};
+
+/*--------------------------------------------------------------------------*/
+class vstUIObject { /* superclass of all VST UI widgets */
+protected:
+ string fLabel;
+ float* fZone;
+
+ inline float clip(float min, float max, float val)
+ {
+ return (val < min) ? min : (val > max) ? max : val;
+ }
+
+ inline float normalize(float min, float max, float val)
+ { // VST parameters are normalized to the range [0;1] on the host
+ val = min + val * (max - min);
+ return (val < min) ? min : (val > max) ? max : val;
+ }
+
+public:
+ vstUIObject(char* label, float* zone):fLabel(label),fZone(zone) {}
+ virtual ~vstUIObject() {}
+
+ virtual void GetName(char *text){std::strcpy(text,fLabel.c_str());}
+ virtual void SetValue(double f) {*fZone = normalize(0.0f,1.0f,(float)f);}
+ virtual void SetValueNoNormalization(double f) {*fZone = clip(0.0f,1.0f,(float)f);}
+ virtual float GetValue() {return *fZone;}
+ virtual void GetDisplay(char *text){std::sprintf(text,"%f",*fZone);}
+ virtual long GetID()
+ { /* returns the sum of all the ASCII characters contained in the parameter's label */
+ unsigned int i;
+ long acc;
+ for(i=0,acc = 0;i<fLabel.length();i++) acc += (fLabel.c_str())[i];
+ return acc;
+ }
+};
+
+/*--------------------------------------------------------------------------*/
+class vstToggleButton : public vstUIObject {
+
+public:
+
+ vstToggleButton(char* label, float* zone):vstUIObject(label,zone) {}
+ virtual ~vstToggleButton() {}
+ virtual float GetValue() {return *fZone;}
+ virtual void SetValue(double f) {*fZone = (f>0.5f)?1.0f:0.0f;}
+ virtual void GetDisplay(char *text){(*fZone>0.5f)? std::strcpy(text,"ON"): std::strcpy(text,"OFF");}
+};
+
+/*--------------------------------------------------------------------------*/
+class vstCheckButton : public vstUIObject {
+
+public:
+
+ vstCheckButton(char* label, float* zone):vstUIObject(label,zone) {}
+ virtual ~vstCheckButton() {}
+ virtual float GetValue() {return *fZone;}
+ virtual void SetValue(double f) {*fZone = (f>0.5f)?1.0f:0.0f;}
+ virtual void GetDisplay(char *text){(*fZone>0.5f)? std::strcpy(text,"ON"): std::strcpy(text,"OFF");}
+};
+
+/*--------------------------------------------------------------------------*/
+class vstButton : public vstUIObject {
+
+public:
+
+ vstButton(char* label, float* zone):vstUIObject(label,zone) {}
+ virtual ~vstButton() {}
+ virtual float GetValue() {return *fZone;}
+ virtual void SetValue(double f) {*fZone = (f>0.5f)?1.0f:0.0f;}
+ virtual void GetDisplay(char *text){(*fZone>0.5f)? std::strcpy(text,"ON"): std::strcpy(text,"OFF");}
+};
+
+/*--------------------------------------------------------------------------*/
+class vstSlider : public vstUIObject{
+
+private:
+
+ float fInit;
+ float fMin;
+ float fMax;
+ float fStep;
+
+public:
+
+ vstSlider(char* label, float* zone, float init, float min, float max, float step)
+ :vstUIObject(label,zone), fInit(init), fMin(min), fMax(max),fStep(step) {}
+ virtual ~vstSlider() {}
+
+ // The VST host calls GetValue() and expects a result in [0,1].
+ // The VST host calls SetValue(f) with f in [0,1]. We convert to real units.
+ // When we process MIDI controls, we call SetValueNoNormalization(f) with f in real units.
+ virtual float GetValue() {return (*fZone-fMin)/(fMax-fMin);} // normalize
+ virtual void SetValue(double f) {*fZone = normalize(fMin,fMax,(float)f);} // denormalize
+ virtual void SetValueNoNormalization(double f) {*fZone = clip(fMin,fMax,(float)f);} // raw
+};
+
+/*--------------------------------------------------------------------------*/
+class vstUI : public UI
+{
+private:
+
+ vector<vstUIObject*> fUITable;
+
+public:
+
+ int freqIndex;
+ int gainIndex;
+ int gateIndex;
+
+ vstUI(){
+ freqIndex = gainIndex = gateIndex = -1;
+ }
+ virtual ~vstUI()
+ {
+ for (vector<vstUIObject*>::iterator iter = fUITable.begin(); iter != fUITable.end(); iter++) delete *iter;
+ }
+
+ void setAny(int anyIndex, float val, char *str) {
+ if (anyIndex<0) {
+#ifdef DEBUG
+ // On the Receptor, and perhaps other hosts, output to stderr is logged in a file.
+ fprintf(stderr,"*** Faust vsti: %sIndex = %d never set!\n",str,anyIndex);
+#endif
+ return;
+ }
+ if (anyIndex >= fUITable.size()) {
+#ifdef DEBUG
+ fprintf(stderr,"*** Faust vsti: %sIndex = %d too large!\n",str,anyIndex);
+#endif
+ return;
+ }
+#ifdef DEBUG
+ fprintf(stderr,"*** Faust vsti: Setting %sIndex = %d to %f\n",str,anyIndex,val);
+#endif
+ fUITable[anyIndex]->SetValueNoNormalization(val);
+ }
+
+ void setFreq(float val) {
+ setAny(freqIndex, val, "freq");
+ }
+
+ void setGate(float val) {
+ setAny(gateIndex, val, "gate");
+ }
+
+ void setGain(float val) {
+ setAny(gainIndex, val, "gain");
+ }
+
+ bool ckAnyMatch(char* label, char* indexName, int *index) {
+ if (_stricmp(label,indexName)==0) {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: label '%s' matches '%s'\n",label,indexName);
+#endif
+ *index = fUITable.size() - 1;
+ return true;
+ }
+ return false;
+ }
+
+ void ckAllMatches(char* label) {
+ ckAnyMatch(label,"gain",&gainIndex);
+ ckAnyMatch(label,"gate",&gateIndex);
+ ckAnyMatch(label,"freq",&freqIndex);
+ }
+
+ void addButton(char* label, float* zone) {
+ vstButton* theButton = new vstButton(label, zone);
+ fUITable.push_back(theButton);
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: Adding Button with label '%s'\n",label);
+#endif
+ ckAnyMatch(label,"gate",&gateIndex);
+ }
+
+ void addToggleButton(char* label, float* zone) {fUITable.push_back(new vstToggleButton(label, zone));}
+
+ void addCheckButton(char* label, float* zone) {fUITable.push_back(new vstCheckButton(label, zone));}
+
+ void addVerticalSlider(char* label, float* zone, float init, float min, float max, float step)
+ {
+ vstSlider* theSlider = new vstSlider(label, zone, init, min, max, step);
+ fUITable.push_back(theSlider);
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: Adding VSlider (HSlider) with label '%s'\n",label);
+#endif
+ ckAllMatches(label);
+ }
+
+ void addHorizontalSlider(char* label, float* zone, float init, float min, float max, float step)
+ {
+ vstSlider* theSlider = new vstSlider(label, zone, init, min, max, step);
+ fUITable.push_back(theSlider);
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: Adding HSlider with label '%s'\n",label);
+#endif
+ ckAllMatches(label);
+ }
+
+ void addNumEntry(char* label, float* zone, float init, float min, float max, float step)
+ { /* Number entries converted to horizontal sliders */
+ vstSlider* theSlider = new vstSlider(label, zone, init, min, max, step);
+ fUITable.push_back(theSlider);
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: Adding NumEntry (HSlider) with label '%s'\n",label);
+#endif
+ ckAllMatches(label);
+ }
+
+ void openFrameBox(char* label) {}
+ void openTabBox(char* label) {}
+ void openHorizontalBox(char* label) {}
+ void openVerticalBox(char* label) {}
+ void closeBox() {}
+
+ void SetValue(VstInt32 index, double f) {assert(index<fUITable.size()); fUITable[index]->SetValue(f);}
+ float GetValue(VstInt32 index) {assert(index<fUITable.size()); return fUITable[index]->GetValue();}
+ void GetDisplay(VstInt32 index, char *text) {assert(index<fUITable.size()); fUITable[index]->GetDisplay(text);}
+ void GetName(VstInt32 index, char *text) {assert(index<fUITable.size()); fUITable[index]->GetName(text);}
+ long GetNumParams() {return fUITable.size();}
+
+ long makeID()
+ /* Creates a (unique?)id by summing all the parameter's labels,
+ * then wrapping it in the range [0;maxNumberOfId] and adding
+ * this number to the offset made by the Four Character ID: 'FAUS'
+ */
+ {
+ const long maxNumberOfId = 128;
+ long baseid = 'FAUS';
+ long id=0;
+ for(int i=0;i<fUITable.size();i++) id += fUITable[i]->GetID();
+ return baseid + id % maxNumberOfId;
+ }
+
+ // To be implemented
+ void addNumDisplay(char* label, float* zone, int precision){}
+ void addTextDisplay(char* label, float* zone, char* names[], float min, float max){}
+ void addHorizontalBargraph(char* label, float* zone, float min, float max){}
+ void addVerticalBargraph(char* label, float* zone, float min, float max){}
+};
+
+//-----------------------------------------------------------------------------
+// Class Implementations
+//-----------------------------------------------------------------------------
+
+#define kNumPrograms 1
+
+AudioEffect* createEffectInstance (audioMasterCallback audioMaster)
+{
+ // The dsp and its UI need to be allocated now because
+ // AudioEffectX wants the no. parameters available as an instance argument:
+ mydsp* dspi = new mydsp();
+ vstUI* dspUIi = new vstUI();
+ dspi->buildUserInterface(dspUIi);
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: created\n"); // look for this in the system log
+#endif
+ return new Faust(audioMaster,dspi,dspUIi);
+}
+
+//-----------------------------------------------------------------------------
+// Faust
+//-----------------------------------------------------------------------------
+Faust::Faust(audioMasterCallback audioMaster, mydsp* dspi, vstUI* dspUIi)
+ :AudioEffectX(audioMaster, kNumPrograms,dspUIi->GetNumParams())
+{
+ // Copy the pointers to dsp and dspUI instances and take them over
+ // (we'll also deallocate):
+ dsp = dspi;
+ dspUI = dspUIi;
+
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: classInit:\n");
+#endif
+
+ dsp->classInit((int)getSampleRate()); // Ask AudioEffect for sample-rate
+
+ setProgram(0);
+ setProgramName("Default");
+
+ if (audioMaster) {
+ setNumInputs(dsp->getNumInputs());
+ setNumOutputs(dsp->getNumOutputs());
+ canProcessReplacing();
+ if (dsp->getNumInputs() == 0) {
+ isSynth(); // at least let's hope so!
+ if (dsp->getNumOutputs() < 1) {
+ fprintf(stderr,"*** faust: vsti: No signal inputs or outputs, and Faust has no MIDI outputs!\n");
+ }
+ }
+ setUniqueID(dspUI->makeID());
+ }
+ initProcess();
+ if (dsp->getNumInputs() == 0) {
+ suspend(); // Synths start out quiet
+ }
+}
+
+//----------------------------------------------------------------------------
+Faust::~Faust()
+{
+ if (dsp) delete dsp;
+ if (dspUI) delete dspUI;
+}
+
+//-----------------------------------------------------------------------------
+void Faust::setProgram (VstInt32 program)
+// Override this method of AudioEffect in order to set
+// local instance variables corresponding to the current MIDI program.
+// Here there is only one program.
+{
+ if (program < 0 || program >= kNumPrograms) {
+ fprintf(stderr,"*** Faust vsti: setting program to %d is OUT OF RANGE\n",program);
+ return;
+ }
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: setting program to %d\n",program);
+#endif
+ curProgram = program; // curProgram defined in audioeffect.h
+}
+
+//------------------------------------------------------------------------------
+void Faust::setProgramName (char* name)
+{
+ vst_strncpy (programName, name, kVstMaxProgNameLen);
+}
+
+//-----------------------------------------------------------------------------
+void Faust::getProgramName(char *name)
+{
+ vst_strncpy (name, programName, kVstMaxProgNameLen);
+}
+
+//-----------------------------------------------------------------------------
+void Faust::getParameterLabel(VstInt32 index, char *label)
+{
+ // We are not using parameter "units" display:
+ vst_strncpy (label, "", kVstMaxParamStrLen); // parameter units in Name
+}
+
+//-----------------------------------------------------------------------------
+void Faust::getParameterDisplay(VstInt32 index, char *text)
+{
+ if(index<numParams)
+ dspUI->GetDisplay(index,text); // get displayed float value as text
+ else
+ vst_strncpy (text, "IndexOutOfRange", kVstMaxParamStrLen);
+}
+
+//-----------------------------------------------------------------------------
+void Faust::getParameterName(VstInt32 index, char *label)
+{
+ if(index<numParams)
+ dspUI->GetName(index,label); // parameter name, including units
+ else
+ vst_strncpy (label, "IndexOutOfRange", kVstMaxParamStrLen);
+}
+
+//-----------------------------------------------------------------------------
+void Faust::setParameter(VstInt32 index, float value)
+{
+ if(index<numParams)
+ dspUI->SetValue(index,value);
+}
+
+//-----------------------------------------------------------------------------
+float Faust::getParameter(VstInt32 index)
+{
+ if(index<numParams)
+ return dspUI->GetValue(index);
+ else
+ return 0.0f;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getInputProperties (VstInt32 index, VstPinProperties* properties)
+{
+ if(index>=0 && index<dsp->getNumInputs())
+ {
+ sprintf (properties->label, "Grame Faust DSP input: %d",index);
+ sprintf (properties->shortLabel, "In %d",index);
+ properties->flags = kVstPinIsActive;
+ if (dsp->getNumInputs() == 2) {
+ properties->flags |= kVstPinIsStereo;
+ }
+ return true;
+ }
+ else
+ return false;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getOutputProperties (VstInt32 index, VstPinProperties* properties)
+{
+ if(index>=0 && index<dsp->getNumOutputs())
+ {
+ sprintf (properties->label, "Grame Faust DSP output: %d",index);
+ sprintf (properties->shortLabel, "Out %d",index);
+ properties->flags = kVstPinIsActive;
+ if (dsp->getNumOutputs() == 2) {
+ properties->flags |= kVstPinIsStereo;
+ }
+ return true;
+ }
+ else
+ return false;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getProgramNameIndexed (VstInt32 category, VstInt32 index, char* text)
+{
+ if (index < kNumPrograms) {
+ vst_strncpy (text, programName, kVstMaxProgNameLen);
+ return true;
+ }
+ return false;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getEffectName (char* name)
+{
+ // Get from Faust-supplied metadata?
+ vst_strncpy (name, "Effect Name goes here", kVstMaxEffectNameLen);
+ return true;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getVendorString (char* text)
+{
+ vst_strncpy (text, "Vendor String goes here", kVstMaxVendorStrLen);
+ return true;
+}
+
+//-----------------------------------------------------------------------------
+bool Faust::getProductString (char* text)
+{
+ vst_strncpy (text, "Product String goes here", kVstMaxProductStrLen);
+ return true;
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::getVendorVersion ()
+{
+ return 1000;
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::canDo (char* text)
+{
+ if (!strcmp (text, "receiveVstEvents"))
+ return 1;
+ if (!strcmp (text, "receiveVstMidiEvent"))
+ return 1;
+ if (!strcmp (text, "midiProgramNames"))
+ return 1;
+ return -1; // explicitly can't do; 0 => don't know
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::getNumMidiInputChannels ()
+{
+ return 1; // one MIDI-in channel
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::getNumMidiOutputChannels ()
+{
+ return 0; // no MIDI-outs
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::getMidiProgramName (VstInt32 channel, MidiProgramName* mpn)
+{
+ VstInt32 prg = mpn->thisProgramIndex;
+ if (prg < 0 || prg > 0) return 0;
+ fillProgram (channel, prg, mpn);
+ return 1; // we have only 1 "MIDI program"
+}
+
+//------------------------------------------------------------------------
+VstInt32 Faust::getCurrentMidiProgram (VstInt32 channel, MidiProgramName* mpn)
+{
+ // There is only one MIDI program here, so return it regardless of MIDI channel:
+ if (channel < 0 || channel >= 16 || !mpn) return -1;
+ VstInt32 prg = 0;
+ mpn->thisProgramIndex = prg;
+ fillProgram (channel, prg, mpn);
+ return prg;
+}
+
+//------------------------------------------------------------------------
+void Faust::fillProgram (VstInt32 channel, VstInt32 prg, MidiProgramName* mpn)
+// Fill mpn struct for given channel. Here there should be only one.
+{
+ mpn->midiBankMsb = mpn->midiBankLsb = -1;
+ mpn->reserved = 0;
+ mpn->flags = 0;
+ vst_strncpy (mpn->name, programName, kVstMaxProgNameLen);
+ mpn->midiProgram = (char)prg; // prg should only be 0
+ mpn->parentCategoryIndex = -1;
+}
+
+//------------------------------------------------------------------------
+VstInt32 Faust::getMidiProgramCategory (VstInt32 channel, MidiProgramCategory* cat)
+// VST host wants to fill cat struct for given channel. We have only one category.
+{
+ cat->parentCategoryIndex = -1; // -1:no parent category
+ cat->flags = 0; // reserved, none defined yet, zero.
+ VstInt32 category = cat->thisCategoryIndex;
+ vst_strncpy (cat->name, "Faust Patch", kVstMaxProgNameLen);
+ return 1; // one category
+}
+
+//***********************************************************************
+
+//-----------------------------------------------------------------------------
+void Faust::setSampleRate(float sampleRate)
+{
+ AudioEffect::setSampleRate(sampleRate);
+ dsp->instanceInit((int)getSampleRate()); // in case AudioEffect altered it
+}
+
+//-----------------------------------------------------------------------------
+void Faust::initProcess ()
+{
+ noteIsOn = false;
+ currentDelta = currentNote = currentDelta = 0;
+ dsp->instanceInit((int)getSampleRate());
+}
+
+//-----------------------------------------------------------------------------
+void Faust::processReplacing(float **inputs, float **outputs, VstInt32 sampleFrames)
+{
+ AVOIDDENORMALS;
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: processReplacing . . .\n");
+#endif
+
+ if (dsp->getNumInputs() > 0) { // We're an effect . . . keep going:
+
+ dsp->compute(sampleFrames, inputs, outputs);
+
+ } else { // We're a synth . . .
+ int i, nouts = dsp->getNumOutputs();
+
+ if (noteIsOn) { // we're synthesizing . . .
+
+ if (currentDelta > 0) { // but waiting out a timestamp delay . . .
+ if (currentDelta >= sampleFrames) { // start time is after this chunk
+ currentDelta -= sampleFrames;
+ // According to the VST programming sample, we DON'T clear the output buffers yet.
+ // Could this be a bug in the sample program? I would like to add the following:
+ // for (i=0; i<nouts; i++) { memset (outptr[i], 0, sampleFrames * sizeof (float)); }
+ return;
+ } else {
+ // float* outptr[nouts];
+ float** outptr = (float **)malloc(nouts * sizeof(float*));
+
+#ifdef DEBUG
+ fprintf(stderr,"*** Faust vsti: currentDelta = %d\n",currentDelta);
+#endif
+
+ for (i=0; i<nouts; i++) {
+ outptr[i] = outputs[i]; // leaving caller's pointers alone
+ // According to the VST programming sample, we DO clear the output buffers now
+ // (since the start-time for the note is somewhere within the current chunk buf).
+ memset (outptr[i], 0, currentDelta * sizeof (float));
+ outptr[i] += currentDelta;
+ }
+ sampleFrames -= currentDelta;
+ currentDelta = 0;
+ dsp->compute(sampleFrames, inputs, outptr);
+ free(outptr);
+ }
+ } else {
+ dsp->compute(sampleFrames, inputs, outputs);
+ }
+
+ } else { // silence until NoteOn . . .
+ for (i=0; i<nouts; i++) { memset (outputs[i], 0, sampleFrames * sizeof (float)); }
+ }
+ }
+}
+
+//-----------------------------------------------------------------------------
+VstInt32 Faust::processEvents (VstEvents* ev)
+{
+ if (ev->numEvents > 0) {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: processEvents processing %d events\n",
+ ev->numEvents);
+#endif
+ }
+
+ for (VstInt32 i = 0; i < ev->numEvents; i++)
+ {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: event type = %d\n",
+ (ev->events[i])->type);
+#endif
+ if ((ev->events[i])->type != kVstMidiType) {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: EVENT IGNORED!\n");
+#endif
+ continue;
+ }
+ VstMidiEvent* event = (VstMidiEvent*)ev->events[i];
+ char* midiData = event->midiData;
+ VstInt32 chan = midiData[0] & 0xf;
+ VstInt32 status = midiData[0] & 0xf0;
+#ifdef DEBUG
+ fprintf(stderr,"\n=== Faust vsti: event->midiData[0] = 0x%x\n",
+ event->midiData[0]);
+ fprintf(stderr,"=== Faust vsti: midi channel = 0x%x\n", chan);
+ fprintf(stderr,"=== Faust vsti: midi status = 0x%x\n", status);
+ fprintf(stderr,"=== Faust vsti: event->midiData[1] = 0x%x\n",
+ event->midiData[1]);
+ fprintf(stderr,"=== Faust vsti: event->midiData[2] = 0x%x\n",
+ event->midiData[2]);
+#endif
+
+ if (status == 0x90) { // note on
+ VstInt32 note = midiData[1] & 0x7f;
+ VstInt32 velocity = midiData[2] & 0x7f;
+#ifdef DEBUG
+ fprintf(stderr,
+ "=== Faust vsti: note = %d, velocity = %d, delay = %d\n",
+ note,velocity,event->deltaFrames);
+#endif
+ if (velocity>0) {
+ noteOn(note, velocity, event->deltaFrames);
+ } else {
+ noteOff();
+ }
+ } else if (status == 0x80) { // note off
+ noteOff();
+ // } else if (status == 0xA0) { // poly aftertouch
+ } else if (status == 0xB0) { // control change
+ /* DO SOMETHING WITH THE CONTROLLER DATA */
+ fprintf(stderr,"=== Faust vsti: CONTROL CHANGE (status 0xB0)!\n");
+ if (midiData[1] == 0x7e || midiData[1] == 0x7b) { // all notes off
+ fprintf(stderr,"=== Faust vsti: ALL NOTES OFF!\n");
+ noteOff (); // why is all-notes-off inside a "control change" event?
+ }
+ // } else if (status == 0xC0) { // program change
+ // } else if (status == 0xD0) { // mono aftertouch
+ // } else if (status == 0xE0) { // pitch change
+ // } else if (status == 0xF0) { // SYSX ...
+ }
+ // For a list, see
+ // http://www.alfred-j-faust.de/rft/midi%20status%20types.html
+
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: Going to next event\n", event->midiData[2]);
+#endif
+
+ event++;
+ }
+ return 1;
+}
+
+//-----------------------------------------------------------------------------
+void Faust::noteOn (VstInt32 note, VstInt32 velocity, VstInt32 delta)
+{
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: noteOn: note = %d, vel = %d, del = %d\n",note,velocity,delta);
+#endif
+ currentNote = note;
+ currentVelocity = velocity;
+ currentDelta = delta;
+ noteIsOn = true;
+ float freq = 440.0f * powf(2.0f,(((float)note)-69.0f)/12.0f);
+ float gain = velocity/127.0f;
+ dspUI->setFreq(freq); // Hz - requires Faust control-signal "freq"
+ dspUI->setGain(gain); // 0-1 - requires Faust control-signal "gain"
+ dspUI->setGate(1.0f); // 0 or 1 - requires Faust button-signal "gate"
+}
+
+//-----------------------------------------------------------------------------
+void Faust::noteOff ()
+{
+ if (noteIsOn) {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: noteOff\n");
+#endif
+ dspUI->setGate(0);
+ } else {
+#ifdef DEBUG
+ fprintf(stderr,"=== Faust vsti: noteOff IGNORED (note was not on)\n");
+#endif
+ }
+}
+
+
+/********************END ARCHITECTURE SECTION (part 2/2)****************/
+
projects / Faustine.git / blobdiff