/* * Saw * * This code was generated by Faust. It utilizes the saw2 Faust * module coded by Julius Smith. See oscillator.lib for more details. * */ #include <stdlib.h>#include <math.h>#include "soundpipe.h"#include "CUI.h" #define max(a,b) ((a < b) ? b : a)#define min(a,b) ((a < b) ? a : b) #ifndef FAUSTFLOAT#define FAUSTFLOAT float#endif static float faustpower2_f(float value) {	return (value * value); } typedef struct { 	float fRec0[2];	float fVec0[2];	float fVec1[2];	int fSamplingFreq;	int iConst0;	FAUSTFLOAT fHslider0;	FAUSTFLOAT fHslider1;	float fConst1;	float fConst2;} blsaw; blsaw* newblsaw(void) {	blsaw* dsp = (blsaw*)malloc(sizeof(blsaw));	return dsp;} void deleteblsaw(blsaw* dsp) {	free(dsp);} void instanceInitblsaw(blsaw* dsp, int samplingFreq) {	dsp->fSamplingFreq = samplingFreq;	dsp->iConst0 = min(192000, max(1, dsp->fSamplingFreq));	dsp->fHslider0 = (FAUSTFLOAT)1.;	dsp->fHslider1 = (FAUSTFLOAT)440.;	dsp->fConst1 = (float)dsp->iConst0;	dsp->fConst2 = (2.f / dsp->fConst1);	/* C99 loop */	{		int i0;		for (i0 = 0; (i0 < 2); i0 = (i0 + 1)) {			dsp->fRec0[i0] = 0.f; 		} 	}	/* C99 loop */	{		int i1;		for (i1 = 0; (i1 < 2); i1 = (i1 + 1)) {			dsp->fVec0[i1] = 0.f; 		} 	}	/* C99 loop */	{		int i2;		for (i2 = 0; (i2 < 2); i2 = (i2 + 1)) {			dsp->fVec1[i2] = 0.f; 		} 	} } void initblsaw(blsaw* dsp, int samplingFreq) {	instanceInitblsaw(dsp, samplingFreq);} void buildUserInterfaceblsaw(blsaw* dsp, UIGlue* interface) {	interface->addHorizontalSlider(interface->uiInterface, "freq", &dsp->fHslider1, 440.f, 0.f, 20000.f, 0.0001f);	interface->addHorizontalSlider(interface->uiInterface, "amp", &dsp->fHslider0, 1.f, 0.f, 1.f, 0.0001f);} void computeblsaw(blsaw* dsp, int count, FAUSTFLOAT** inputs, FAUSTFLOAT** outputs) {    USED(inputs); 	FAUSTFLOAT* output0 = outputs[0];	float fSlow0 = (float)dsp->fHslider1;	float fSlow1 = ((float)dsp->iConst0 * ((float)dsp->fHslider0 / fSlow0));	float fSlow2 = (dsp->fConst2 * fSlow0);	float fSlow3 = (dsp->fConst1 / fSlow0);	/* C99 loop */	{		int i;		for (i = 0; (i < count); i = (i + 1)) {			dsp->fRec0[0] = fmod((1.f + dsp->fRec0[1]), fSlow3);			float fTemp0 = faustpower2_f(((fSlow2 * dsp->fRec0[0]) - 1.f));			dsp->fVec0[0] = fTemp0;			dsp->fVec1[0] = 0.25f;			output0[i] = (FAUSTFLOAT)(fSlow1 * ((fTemp0 - dsp->fVec0[1]) * dsp->fVec1[1]));			dsp->fRec0[1] = dsp->fRec0[0];			dsp->fVec0[1] = dsp->fVec0[0];			dsp->fVec1[1] = dsp->fVec1[0]; 		} 	} }  static void addHorizontalSlider(void* ui_interface, const char* label, FAUSTFLOAT* zone, FAUSTFLOAT init, FAUSTFLOAT min, FAUSTFLOAT max, FAUSTFLOAT step){    USED(label, init, min, max, step);     sp_blsaw *p = ui_interface;    p->args[p->argpos] = zone;    p->argpos++;} int sp_blsaw_create(sp_blsaw **p){    *p = malloc(sizeof(sp_blsaw));    return SP_OK;} int sp_blsaw_destroy(sp_blsaw **p){    sp_blsaw *pp = *p;    blsaw *dsp = pp->ud;    deleteblsaw (dsp);    free(*p);    return SP_OK;} int sp_blsaw_init(sp_data *sp, sp_blsaw *p){    blsaw *dsp = newblsaw();    UIGlue UI;    p->argpos = 0;    UI.addHorizontalSlider= addHorizontalSlider;    UI.uiInterface = p;    buildUserInterfaceblsaw(dsp, &UI);    initblsaw(dsp, sp->sr);      p->freq = p->args[0];    p->amp = p->args[1];     p->ud = dsp;    return SP_OK;} int sp_blsaw_compute(sp_data *sp, sp_blsaw *p, SPFLOAT *in, SPFLOAT *out){    USED(sp);     blsaw *dsp = p->ud;    SPFLOAT out1 = 0;    SPFLOAT *faust_out[] = {&out1};    SPFLOAT *faust_in[] = {in};    computeblsaw(dsp, 1, faust_in, faust_out);     *out = out1;    return SP_OK;}