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dmach~.c
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dmach~.c
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#include "MSPd.h"
#define MAX_ATTACKS (512)
#define MAX_PATTERNS (1024)
#define OBJECT_NAME "dmach~"
static t_class *dmach_class;
typedef struct
{
float trigger_point;
float increment;
float amplitude;
} t_attack;
typedef struct
{
short active; // flag for if this drum slot is used in current pattern
int attack_count; // number of attacks in this pattern
int adex; // index to current attack
t_attack *attacks; // array containing attack data
} t_drumline;
typedef struct
{
float beats; // how many beats in this pattern
float dsamps; //duration of pattern in samples
t_drumline *drumlines;
} t_pattern;
typedef struct _dmach
{
t_object x_obj;
float x_f;
short mute; // global mute
float clocker; // global sample counter clock
float tempo;
float tempo_factor; // multiplier to get actual beat duration
t_pattern *patterns; // contains all drum patterns
short *stored_patterns;// which locations contain a pattern
float *gtranspose;// transpose factor for each individual drum slot
float *gains; // gain factor for each individual drum slot
float *current_increment;// maintains increment for sustained output
int this_pattern; // number of current pattern
int next_pattern; // number of pattern to call at end of current pattern
float global_gain;
float global_transpose;
float sr;
int drum_count; // number of drum slots to instantiate
int outlet_count; // number of outlets on object
short virgin; // no patterns stored - turn off performance
/* sequencer */
short playsequence; // flag to play through a stored sequence once
short loopsequence; // flag to loop repeatedly through sequence
int *sequence; // contains the sequence of bars to play
int sequence_length; // how many bars are stored in sequence
int seqptr; // keep track of current sequencer position
float zeroalias; // use this to send a coded "zero" message (i.e. bar number is zero)
t_atom *listdata; // for list output
void *listraw_outlet;// send a list
short clickincr; //flag that click increment is on (i.e. no sample and hold)
short *attackpattern; // holds full attack sequence including zeros (for list output)
int attackpattern_count;// how many ticks in attack pattern
t_attack *tmpatks; // hold local copy of new slot pattern
short *connected; // list of vector connections
short *muted; // state of each slot
short instant_recall; // flag that pattern gets loaded immediately (loops only)
} t_dmach;
void dmach_store(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void *dmach_new(t_symbol *s, int argc, t_atom *argv);
t_int *dmach_perform(t_int *w);
void dmach_mute(t_dmach *x, t_floatarg toggle);
void dmach_dsp(t_dmach *x, t_signal **sp);
void dmach_dsp_free(t_dmach *x);
void dmach_init_pattern(t_dmach *x, int pnum);
void dmach_show(t_dmach *x, t_floatarg fn);
void dmach_tempo(t_dmach *x, t_floatarg new_tempo);
void dmach_recall(t_dmach *x, t_floatarg pnf);
void dmach_transpose(t_dmach *x, t_floatarg slotf, t_floatarg new_transpose_factor);
void dmach_gain(t_dmach *x, t_floatarg slotf, t_floatarg new_gain_factor);
void dmach_arm(t_dmach *x, t_floatarg pnf);
void dmach_playsequence(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_slotamps(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_printraw(t_dmach *x, t_floatarg fn);
void dmach_readraw(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_slotincrs(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_loopsequence(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_muteslot(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_slotampsfull(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_nosequence(t_dmach *x);
void dmach_copypattern(t_dmach *x, t_floatarg pn1, t_floatarg pn2);
void dmach_listraw(t_dmach *x, t_symbol *s, int argc, t_atom *argv);
void dmach_clickincr(t_dmach *x, t_floatarg toggle);
void dmach_instant_recall(t_dmach *x, t_floatarg toggle);
void dmach_tilde_setup(void){
dmach_class = class_new(gensym("dmach~"), (t_newmethod)dmach_new,
(t_method)dmach_dsp_free,sizeof(t_dmach), 0,A_GIMME,0);
CLASS_MAINSIGNALIN(dmach_class, t_dmach, x_f);
class_addmethod(dmach_class,(t_method)dmach_dsp,gensym("dsp"),0);
class_addmethod(dmach_class,(t_method)dmach_mute,gensym("mute"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_show,gensym("show"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_tempo,gensym("tempo"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_store,gensym("store"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_recall,gensym("recall"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_transpose,gensym("transpose"),A_FLOAT,A_FLOAT, 0);
class_addmethod(dmach_class,(t_method)dmach_gain,gensym("gain"),A_FLOAT,A_FLOAT, 0);
class_addmethod(dmach_class,(t_method)dmach_printraw,gensym("printraw"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_arm,gensym("arm"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_readraw,gensym("readraw"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_listraw,gensym("listraw"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_playsequence,gensym("playsequence"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_slotamps,gensym("slotamps"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_slotampsfull,gensym("slotampsfull"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_slotincrs,gensym("slotincrs"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_loopsequence,gensym("loopsequence"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_muteslot,gensym("muteslot"),A_GIMME,0);
class_addmethod(dmach_class,(t_method)dmach_nosequence,gensym("nosequence"),0);
class_addmethod(dmach_class,(t_method)dmach_copypattern,gensym("copypattern"),A_FLOAT,A_FLOAT, 0);
class_addmethod(dmach_class,(t_method)dmach_clickincr,gensym("clickincr"),A_FLOAT,0);
class_addmethod(dmach_class,(t_method)dmach_instant_recall,gensym("instant_recall"),A_FLOAT,0);
potpourri_announce(OBJECT_NAME);
}
void dmach_muteslot(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int slot;
int drum_count = x->drum_count;
short mutestate;
if(argc < 2){
post("muteslot: pattern number, slot number");
return;
}
slot = (int)atom_getfloatarg(0,argc,argv);
mutestate = (short)atom_getfloatarg(1,argc,argv);
if(slot < 0 || slot > drum_count - 1){
error("muteslot: illegal slot index: %d",slot);
return;
}
x->muted[slot] = mutestate;
}
void dmach_nosequence(t_dmach *x)
{
x->playsequence = 0;
x->loopsequence = 0;
}
void dmach_playsequence(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int i;
int pnum;
if(argc < 1){
error("%s: zero length sequence",OBJECT_NAME);
return;
}
/* need safety check here */
for(i = 0; i < argc; i++){
pnum = (int) atom_getfloatarg(i,argc,argv);
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
}
for(i = 0; i < argc; i++){
x->sequence[i] = (int) atom_getfloatarg(i,argc,argv);
}
//
if(x->instant_recall){
x->this_pattern = x->sequence[0];
x->clocker = x->patterns[x->this_pattern].dsamps;
} else {
x->next_pattern = x->sequence[0];
}
x->mute = 0;
x->playsequence = 1;
x->loopsequence = 0;
x->sequence_length = argc;
x->seqptr = 0;
}
void dmach_loopsequence(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int i;
int pnum;
if(argc < 1){
error("%s: zero length sequence",OBJECT_NAME);
return;
}
for(i = 0; i < argc; i++){
pnum = (int) atom_getfloatarg(i,argc,argv);
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
}
for(i = 0; i < argc; i++){
x->sequence[i] = (int) atom_getfloatarg(i,argc,argv);
}
if(x->instant_recall){
x->this_pattern = x->sequence[0];
x->clocker = x->patterns[x->this_pattern].dsamps;
} else {
x->next_pattern = x->sequence[0];
}
x->mute = 0;
x->playsequence = 1;
x->loopsequence = 1;
x->sequence_length = argc;
x->seqptr = 0;
}
void dmach_gain(t_dmach *x, t_floatarg slotf, t_floatarg new_gain_factor)
{
int slot = slotf;
// float ratio;
// float gain_factor;
// short *stored_patterns = x->stored_patterns;
float *gains = x->gains;
// t_pattern *p = x->patterns;
int drum_count = x->drum_count;
// int i,j,k;
if(slot < 0 || slot > drum_count - 1){
error("illegal slot index: %d",slot);
return;
}
/* if(new_gain_factor <= 0){
error("illegal gain factor %f", new_gain_factor);
return;
} */
// gain_factor = gains[slot];
// ratio = new_gain_factor / gain_factor;
gains[slot] = new_gain_factor;
}
void dmach_transpose(t_dmach *x, t_floatarg slotf, t_floatarg new_transpose_factor)
{
int slot = slotf;
float *gtranspose = x->gtranspose;
int drum_count = x->drum_count;
if(slot < 0 || slot > drum_count - 1){
error("%s: transpose given illegal slot index: %d",OBJECT_NAME, slot);
return;
}
if(new_transpose_factor == 0){
error("illegal transpose factor %f", new_transpose_factor);
return;
}
gtranspose[slot] = new_transpose_factor;
}
void dmach_recall(t_dmach *x, t_floatarg pnf)
{
int pnum = pnf;
/* post("requested recall of %d, ignored",pnum);
return;*/
if(pnum < 0){
error("requested index is less than zero");
return;
}
if(pnum >= MAX_PATTERNS){
error("requested index is greater than the maximum of %d",MAX_PATTERNS-1);
return;
}
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
// x->this_pattern = x->next_pattern = pnum;
x->mute = 0;
x->next_pattern = pnum;
}
void dmach_arm(t_dmach *x, t_floatarg pnf)
{
int pnum = pnf;
int i;
t_pattern *p = x->patterns;
if(pnum < 0){
error("requested index is less than zero");
return;
}
if(pnum > MAX_PATTERNS){
error("%s: requested index is greater than the maximum of %d",OBJECT_NAME,MAX_PATTERNS-1);
return;
}
if(! x->stored_patterns[pnum]){
error("%s: %d is not currently stored",OBJECT_NAME,pnum);
return;
}
x->mute = 1;
x->clocker = 0;
x->next_pattern = x->this_pattern = pnum;
for(i = 0; i < x->drum_count; i++){ /* reset pointers */
p[x->this_pattern].drumlines[i].adex = 0;
}
}
void dmach_tempo(t_dmach *x, t_floatarg new_tempo)
{
float ratio;
int i, j, k;
short *stored_patterns = x->stored_patterns;
t_pattern *p = x->patterns;
int drum_count = x->drum_count;
float sr = x->sr;
float tempo_factor = x->tempo_factor;
if(new_tempo <= 0.0){
error("tempo must be greater than zero, but was %f",new_tempo);
return;
}
ratio = x->tempo / new_tempo;
x->clocker *= ratio;
x->tempo = new_tempo;
tempo_factor = (60.0/new_tempo);
for(i = 0; i < MAX_PATTERNS; i++){
if(stored_patterns[i]){
p[i].dsamps = p[i].beats * tempo_factor * sr;
for(j = 0; j < drum_count; j++){
if(p[i].drumlines[j].active){
for(k = 0; k < p[i].drumlines[j].attack_count; k++){
p[i].drumlines[j].attacks[k].trigger_point *= ratio;
}
}
}
}
}
x->tempo_factor = tempo_factor;
}
void dmach_show(t_dmach *x, t_floatarg fn)
{
int i,j;
int pnum = (int) fn;
t_pattern *p = x->patterns;
t_attack *ptr;
int drum_count = x->drum_count;
if(pnum < 0 || pnum > MAX_PATTERNS-1){
error("illegal pattern number: %d",pnum);
return;
}
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
post("showing pattern %d",pnum);
/* need to check if pattern is valid */
for(j = 0; j < drum_count; j++){
if(p[pnum].drumlines[j].active){
post("*** drum line for slot %d ***",j);
ptr = p[pnum].drumlines[j].attacks;
post("there are %d attacks",p[pnum].drumlines[j].attack_count);
for(i = 0; i < p[pnum].drumlines[j].attack_count; i++){
post("amp: %f, transp: %f, trigger: %f",
ptr->amplitude, ptr->increment, ptr->trigger_point);
ptr++;
}
}
}
}
void dmach_printraw(t_dmach *x, t_floatarg fn)
{
int i,j;
int pnum = (int) fn;
t_pattern *p = x->patterns;
t_attack *ptr;
int drum_count = x->drum_count;
float normalized_trigger;
float tempo_factor = x->tempo_factor;
float sr = x->sr;
if(pnum < 0 || pnum > MAX_PATTERNS-1){
error("illegal pattern number: %d",pnum);
return;
}
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
if(!tempo_factor){
error("tempo factor is zero!");
return;
}
post("readraw %d %f",pnum, p[pnum].beats);
for(j = 0; j < drum_count; j++){
if(p[pnum].drumlines[j].active){
ptr = p[pnum].drumlines[j].attacks;
post("%d %d",j, p[pnum].drumlines[j].attack_count);
for(i = 0; i < p[pnum].drumlines[j].attack_count; i++){
/* scale attack times to factor out sample rate and tempo */
normalized_trigger = ptr->trigger_point / (tempo_factor * sr);
post("%f %f %f",
ptr->amplitude, ptr->increment, normalized_trigger);
ptr++;
}
}
}
}
void dmach_listraw(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int i,j;
int pnum;
t_pattern *p = x->patterns;
t_attack *ptr;
int drum_count = x->drum_count;
float normalized_trigger;
float tempo_factor = x->tempo_factor;
float sr = x->sr;
int ldex = 0;
t_atom *listdata = x->listdata;
if(argc < 1){
pnum = x->this_pattern;
} else {
pnum = (int) atom_getfloatarg(0,argc,argv);
}
if(pnum < 0 || pnum > MAX_PATTERNS-1){
error("illegal pattern number: %d",pnum);
return;
}
if(! x->stored_patterns[pnum]){
error("%d is not currently stored",pnum);
return;
}
if(!tempo_factor){
error("tempo factor is zero!");
return;
}
/* note: format of MACROS requires that ldex be incremented outside of
call. Also note that traditional indexing A[x] cannot be used; instead must
use A+x format. */
SETSYMBOL(listdata + ldex, gensym("readraw")); ++ldex;
SETFLOAT(listdata + ldex, (float)pnum); ++ldex;
SETFLOAT(listdata + ldex, p[pnum].beats); ++ldex;
for(j = 0; j < drum_count; j++){
if(p[pnum].drumlines[j].active){
ptr = p[pnum].drumlines[j].attacks;
SETFLOAT(listdata + ldex, (float)j); ++ldex;
SETFLOAT(listdata + ldex, (float)(p[pnum].drumlines[j].attack_count)); ++ldex;
for(i = 0; i < p[pnum].drumlines[j].attack_count; i++){
normalized_trigger = ptr->trigger_point / (tempo_factor * sr);
SETFLOAT(listdata + ldex, ptr->amplitude); ++ldex;
SETFLOAT(listdata + ldex, ptr->increment); ++ldex;
SETFLOAT(listdata + ldex, normalized_trigger); ++ldex;
ptr++;
}
}
}
outlet_list(x->listraw_outlet,0,ldex,listdata);
}
void dmach_copypattern(t_dmach *x, t_floatarg pn1, t_floatarg pn2)
{
int i,j;
int pnum_from = (int) pn1;
int pnum_to = (int) pn2;
t_pattern *p = x->patterns;
t_attack *ptr_from, *ptr_to;
int drum_count = x->drum_count;
if(pnum_from < 0 || pnum_from > MAX_PATTERNS-1){
error("illegal source pattern number: %d",pnum_from);
return;
}
if(pnum_to < 0 || pnum_to > MAX_PATTERNS-1){
error("illegal dest pattern number: %d",pnum_to);
return;
}
if(pnum_from == pnum_to){
error("source and dest patterns are the same");
return;
}
if(! x->stored_patterns[pnum_from]){
error("%d is not currently stored",pnum_from);
return;
}
dmach_init_pattern(x,pnum_to);
// post("readraw %d %f %f",pnum, p[pnum].beats, p[pnum].dsamps);
p[pnum_to].beats = p[pnum_from].beats;
p[pnum_to].dsamps = p[pnum_from].dsamps;
for(j = 0; j < drum_count; j++){
p[pnum_to].drumlines[j].active = p[pnum_from].drumlines[j].active;
if(p[pnum_from].drumlines[j].active){
ptr_from = p[pnum_from].drumlines[j].attacks;
ptr_to = p[pnum_to].drumlines[j].attacks;
p[pnum_to].drumlines[j].attack_count = p[pnum_from].drumlines[j].attack_count;
for(i = 0; i < p[pnum_from].drumlines[j].attack_count; i++){
ptr_to->amplitude = ptr_from->amplitude;
ptr_to->increment = ptr_from->increment;
ptr_to->trigger_point = ptr_from->trigger_point;
ptr_from++;
ptr_to++;
}
}
}
x->stored_patterns[pnum_to] = 1;// assert that a legal pattern is now stored there
}
void dmach_readraw(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int i;
int pnum;
int pdex = 0;
int slot;
t_pattern *p = x->patterns;
t_attack *ptr;
// int drum_count = x->drum_count;
float tempo_factor = x->tempo_factor;
float sr = x->sr;
short mutein;
mutein = x->mute;
x->mute = 1;
pnum = (int) atom_getfloatarg(pdex++,argc,argv);
if(pnum < 0 || pnum > MAX_PATTERNS-1){
error("%s: illegal pattern number: %d",OBJECT_NAME,pnum);
return;
}
if(! x->stored_patterns[pnum]){
x->stored_patterns[pnum] = 1; // means there's something there now
dmach_init_pattern(x,pnum);
post("readraw: loading pattern %d",pnum);
} else {
post("readraw: reloading pattern %d",pnum);
}
p[pnum].beats = atom_getfloatarg(pdex++,argc,argv);
// p[pnum].dsamps = atom_getfloatarg(pdex++,argc,argv);
p[pnum].dsamps = p[pnum].beats * tempo_factor * sr;
// post("dsamps calculated to be %f", p[pnum].dsamps);
while(pdex < argc){
slot = (int) atom_getfloatarg(pdex++,argc,argv);
p[pnum].drumlines[slot].active = 1;
p[pnum].drumlines[slot].attack_count = (int) atom_getfloatarg(pdex++,argc,argv);
p[pnum].drumlines[slot].adex = 0;
ptr = p[pnum].drumlines[slot].attacks;
for(i = 0; i < p[pnum].drumlines[slot].attack_count; i++){
ptr->amplitude = atom_getfloatarg(pdex++,argc,argv);
ptr->increment = atom_getfloatarg(pdex++,argc,argv);
ptr->trigger_point = (sr * tempo_factor) * atom_getfloatarg(pdex++,argc,argv);
ptr++;
}
}
x->this_pattern = x->next_pattern = pnum;
x->virgin = 0;
x->mute = mutein;
}
void dmach_slotamps(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int pdex,i;
int slot = 0;
float beatseg;
// float tmpbeats;
float subdiv;
float beat_samps;
float tempo_factor;
int attack_count;
int local_attacks;
float trigger_point;
float val;
int pnum;
t_pattern *p = x->patterns;
float tempo = x->tempo;
float sr = x->sr;
t_attack *tmpatks = x->tmpatks;
pdex = 0;
pnum = atom_getfloatarg(pdex++,argc,argv);
/*
post("skipping slotamps for %d",pnum);
return;*/
if(pnum < 0 || pnum > MAX_PATTERNS - 1){
error("%s: invalid pattern number: %d",OBJECT_NAME,pnum);
return;
}
if(!x->stored_patterns[pnum]){
error("%s: no pattern found at location : %d",OBJECT_NAME,pnum);
return;
}
slot = (int) atom_getfloatarg(pdex++,argc,argv);
if(slot < 0 || slot >= x->drum_count){
post("%s: %d is an illegal slot",OBJECT_NAME,slot);
return;
}
// post("filling slotamps %d for %d",slot, pnum);
if(tempo <= 0){
tempo = 60;
error("zero tempo found");
}
tempo_factor = (60.0/tempo);
beatseg = p[pnum].beats; // less general but we're going for ease here
subdiv = atom_getfloatarg(pdex++,argc,argv);
beat_samps = (beatseg/subdiv) * tempo_factor * sr;
trigger_point = 0;
attack_count = 0;
/* read attack cycle and store any non-zero attacks */
local_attacks = 0;
// clean me
memset((void *)tmpatks, 0, MAX_ATTACKS * sizeof(t_attack) );
for(i = 0; i < subdiv; i++){
val = atom_getfloatarg(pdex++,argc,argv);
if(val){
tmpatks[local_attacks].amplitude = val;
// force to integer sample point
tmpatks[local_attacks].trigger_point = (int)trigger_point;
++local_attacks;
}
trigger_point += beat_samps;
}
/* initialize with increment of 1.0 for each non-zero amplitude attack. */
for(i = 0; i < local_attacks; i++){
if(tmpatks[i].amplitude) {
tmpatks[i].increment = 1.0;
} else {
tmpatks[i].increment = 0.0;
}
}
p[pnum].drumlines[slot].active = 0;
memcpy((void *)p[pnum].drumlines[slot].attacks,(void *)tmpatks,
MAX_ATTACKS * sizeof(t_attack));
p[pnum].drumlines[slot].attack_count = local_attacks;
p[pnum].drumlines[slot].adex = 0;
p[pnum].drumlines[slot].active = 1;
x->this_pattern = x->next_pattern = pnum; // set pattern to what we're working on
}
/* more general version */
void dmach_slotampsfull(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int pdex,i;
int slot = 0;
float beatseg;
float tmpbeats;
float subdiv;
float beat_samps;
float tempo_factor;
int attack_count;
int local_attacks;
float trigger_point;
float val;
int pnum;
t_pattern *p = x->patterns;
float tempo = x->tempo;
float sr = x->sr;
if(argc > MAX_ATTACKS + 1){
post("%s: %d is too long an atk message",OBJECT_NAME,argc);
return;
}
pdex = 0;
pnum = atom_getfloatarg(pdex++,argc,argv);
if(pnum < 0 || pnum > MAX_PATTERNS - 1){
error("%s: invalid pattern number: %d",OBJECT_NAME,pnum);
return;
}
if(!x->stored_patterns[pnum]){
error("%s: no pattern found at location : %d",OBJECT_NAME,pnum);
return;
}
x->this_pattern = x->next_pattern = pnum; // set current pattern to what we're working on
slot = (int) atom_getfloatarg(pdex++,argc,argv);
p[pnum].drumlines[slot].active = 1;
tempo_factor = (60.0/tempo);
tmpbeats = p[pnum].beats;
trigger_point = 0;
attack_count = 0;
while(tmpbeats > 0){
local_attacks = 0;
beatseg = atom_getfloatarg(pdex++,argc,argv);
subdiv = atom_getfloatarg(pdex++,argc,argv);
beat_samps = (beatseg/subdiv) * tempo_factor * sr;
/* read attack cycle and store any non-zero attacks */
local_attacks = 0;
for(i = 0; i < subdiv; i++){
val = atom_getfloatarg(pdex++,argc,argv);
if(val){
p[pnum].drumlines[slot].attacks[attack_count + local_attacks].amplitude = val;
/* force to integer sample point (couldn't get round() to work) */
p[pnum].drumlines[slot].attacks[attack_count + local_attacks].trigger_point = (int)trigger_point;
++local_attacks;
}
trigger_point += beat_samps;
}
for(i = 0; i < local_attacks; i++){
p[pnum].drumlines[slot].attacks[i + attack_count].increment = 1.0;
}
tmpbeats -= beatseg;
attack_count += local_attacks;
}
p[pnum].drumlines[slot].attack_count = attack_count;
}
void dmach_slotincrs(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int pdex,i;
int slot = 0;
int local_attacks;
int pnum;
t_pattern *p = x->patterns;
if(argc > MAX_ATTACKS + 1){
post("%s: %d is too long a slotincrs message",OBJECT_NAME,argc);
return;
}
pdex = 0;
pnum = (int) atom_getfloatarg(pdex++,argc,argv);
slot = (int) atom_getfloatarg(pdex++,argc,argv);
if(slot < 0 || slot >= x->drum_count){
post("%s: %d is an illegal slot",OBJECT_NAME,slot);
return;
}
local_attacks = p[pnum].drumlines[slot].attack_count;
if(argc != local_attacks + 2){
// post("rejected slotincrs with %d local atks, argc = %d",local_attacks, argc - 2);
return;
}
// post("%d local atks, argc = %d",local_attacks, argc);
if(pnum < 0 || pnum >= MAX_PATTERNS){
error("%s: slotincrs sent invalid pattern number: %d",OBJECT_NAME,pnum);
return;
}
if(!x->stored_patterns[pnum]){
error("%s: slotincrs: no pattern found at location : %d",OBJECT_NAME,pnum);
return;
}
// post("filling slotincr for slot %d pnum %d",slot, pnum);
for(i = 0; i < local_attacks; i++){
p[pnum].drumlines[slot].attacks[i].increment = atom_getfloatarg(pdex++,argc,argv);
}
x->this_pattern = x->next_pattern = pnum; // set current pattern to what we're working on
// x->mute = mutein;
}
void dmach_store(t_dmach *x, t_symbol *s, int argc, t_atom *argv)
{
int pdex,i;
int slot = 0;
float beatseg;
float tmpbeats;
float subdiv;
float beat_samps;
float tempo_factor = x->tempo_factor;
int attack_count;
int local_attacks;
float trigger_point;
float val;
int pnum;
t_pattern *p = x->patterns;
float tempo = x->tempo;
float sr = x->sr;
pnum = atom_getfloatarg(0,argc,argv);
if(pnum < 0 || pnum > MAX_PATTERNS - 1){
error("invalid pattern number: %d",pnum);
return;
}
// post("%d arguments to \"store\" at pattern %d",argc,pnum);
dmach_init_pattern(x,pnum);
p[pnum].beats = atom_getfloatarg(1,argc,argv);
if(p[pnum].beats <= 0){
post("illegal beats at pnum %d: %f",pnum,p[pnum].beats);
p[pnum].beats = 4;
}
if(tempo <= 0){
error("zero tempo in store msg");
tempo = 60;
}
tempo_factor = (60.0/tempo);
p[pnum].dsamps = p[pnum].beats * tempo_factor * sr;
pdex = 2;
// post("%f beats %f samps in this pattern",p[pnum].beats,p[pnum].dsamps );
while(pdex < argc){
slot = atom_getfloatarg(pdex++,argc,argv);
p[pnum].drumlines[slot].active = 1;
tmpbeats = p[pnum].beats;
trigger_point = 0;
attack_count = 0;
while(tmpbeats > 0){
local_attacks = 0;
beatseg = atom_getfloatarg(pdex++,argc,argv);
subdiv = atom_getfloatarg(pdex++,argc,argv);
beat_samps = (beatseg/subdiv) * tempo_factor * sr;
/* read attack cycle and store any non-zero attacks */
for(i = 0; i < subdiv; i++){
val = atom_getfloatarg(pdex++,argc,argv);
if(val){
p[pnum].drumlines[slot].attacks[attack_count + local_attacks].amplitude = val;
/* force to integer sample point (couldn't get round() to work) */
p[pnum].drumlines[slot].attacks[attack_count + local_attacks].trigger_point = (int)trigger_point;
++local_attacks;
}
trigger_point += beat_samps;
}
/* we now know number of attacks and read that many transpose factors */
for(i = 0; i < local_attacks; i++){
p[pnum].drumlines[slot].attacks[i + attack_count].increment = atom_getfloatarg(pdex++,argc,argv);
}
tmpbeats -= beatseg;
attack_count += local_attacks;
}
p[pnum].drumlines[slot].attack_count = attack_count;
// post("%d attacks in slot %d for pattern %d",attack_count, slot, pnum);
}
// new - set internal pointer to start of array
p[pnum].drumlines[slot].adex = 0;
// set current pattern to this (to avoid crash if pnum 0 is uninitialized)
x->this_pattern = x->next_pattern = pnum;
x->virgin = 0; // now at least one pattern is stored
x->stored_patterns[pnum] = 1; // means there's something there now
x->tempo_factor = tempo_factor;//restore this value
// post("pattern stored at %d with %f beats",pnum,p[pnum].beats);
}
void dmach_init_pattern(t_dmach *x, int pnum)
{
int i;
int drum_count = x->drum_count;
t_pattern *p = x->patterns;
if(pnum < 0 || pnum >= MAX_PATTERNS){
error("invalid pattern number: %d",pnum);
return;
}
if( x->stored_patterns[pnum] ){
// post("replacing pattern stored at %d",pnum);
}
if(p[pnum].drumlines == NULL){
// post("initializing drumline memory at location %d",pnum);
p[pnum].drumlines = (t_drumline *)malloc(drum_count * sizeof(t_drumline));
}
for(i = 0; i < drum_count; i++){
p[pnum].drumlines[i].attacks = (t_attack *)calloc(MAX_ATTACKS, sizeof(t_attack));
p[pnum].drumlines[i].adex = 0;
p[pnum].drumlines[i].active = 0;
p[pnum].drumlines[i].attack_count = 0;
}
}
void dmach_dsp_free( t_dmach *x )
{
/* need some freeing action here! */
free(x->patterns);
free(x->stored_patterns);
free(x->current_increment);
free(x->gtranspose);
free(x->gains);
free(x->sequence);
free(x->listdata);
free(x->connected);
free(x->tmpatks);
free(x->muted);
}
void dmach_mute(t_dmach *x, t_floatarg toggle)
{
x->mute = (short)toggle;
}
void dmach_instant_recall(t_dmach *x, t_floatarg toggle)
{
x->instant_recall = (short)toggle;
}
void dmach_clickincr(t_dmach *x, t_floatarg toggle)
{
x->clickincr = (short)toggle;
}
void *dmach_new(t_symbol *s, int argc, t_atom *argv)
{
int i;
t_dmach *x;
x = (t_dmach *)pd_new(dmach_class);
if(argc >= 1)
x->tempo = atom_getfloatarg(0,argc,argv);
else
x->tempo = 120;
if(argc >= 2)
x->drum_count = atom_getfloatarg(1,argc,argv);
else
x->drum_count = 8;
x->outlet_count = x->drum_count * 2 + 1; // one extra for pattern start click
for(i = 0; i < x->outlet_count; i++){
outlet_new(&x->x_obj, gensym("signal"));
}
x->listraw_outlet = outlet_new(&x->x_obj, gensym("list"));
x->patterns = (t_pattern *) malloc(MAX_PATTERNS * sizeof(t_pattern));
x->stored_patterns = (short *) malloc(MAX_PATTERNS * sizeof(short));
x->current_increment = (float *) malloc(x->drum_count * sizeof(float)); // for sample + hold of increment
x->gtranspose = (float *) malloc(x->drum_count * sizeof(float));
x->gains = (float *) malloc(x->drum_count * sizeof(float));
x->sequence = (int *) malloc(1024 * sizeof(int));
x->listdata = (t_atom *) malloc(1024 * sizeof(t_atom));
x->connected = (short *) malloc(1024 * sizeof(short));