From fc3d3c0a4f110a23335398c327ac0a4fc949d5cb Mon Sep 17 00:00:00 2001 From: Guenter Geiger Date: Mon, 17 Jun 2002 10:13:57 +0000 Subject: This commit was generated by cvs2svn to compensate for changes in r12, which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/ggee/; revision=13 --- gui/envgen.c | 296 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 296 insertions(+) create mode 100755 gui/envgen.c (limited to 'gui/envgen.c') diff --git a/gui/envgen.c b/gui/envgen.c new file mode 100755 index 0000000..aa644d0 --- /dev/null +++ b/gui/envgen.c @@ -0,0 +1,296 @@ +/* (C) Guenter Geiger */ + + +#include +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +/* ------------------------ envgen~ ----------------------------- */ + +#define NONE 0 +#define ATTACK 1 +#define SUSTAIN 3 +#define STATES 100 + +#include "envgen.h" +#include "w_envgen.h" + +static t_class *envgen_class; + + +char dumpy[2000]; + +/* initialize envelope with argument vector */ + +#include + +/* + envgen crashes frequently when reallocating memory .... + I really don't know why, it crashes during resizebytes, + which means it is unable to realloc() the memory ????? + the pointer seems to be ok, I don't know what else could + cause the problem. for the moment we prevent from reallocating + by setting the STATES variable to 100 */ + +void envgen_resize(t_envgen* x,int ns) +{ + if (ns > x->args) { + int newargs = ns*sizeof(t_float); + + x->duration = resizebytes(x->duration,x->args*sizeof(t_float),newargs); + x->finalvalues = resizebytes(x->finalvalues,x->args*sizeof(t_float),newargs); + x->args = ns; + } +} + + + +void envgen_totaldur(t_envgen* x,t_float dur) +{ + int i; + float f = dur/x->duration[x->last_state]; + + if (dur < 10) { + post("envgen: duration too small %f",dur); + return; + } + + for (i=1;i<=x->last_state;i++) + x->duration[i]*=f; +} + + +static void envgen_dump(t_envgen* e) +{ + t_atom argv[50]; + int argc= 0; + t_atom* a = argv; + int i; + + SETFLOAT(a,e->finalvalues[0]);argc++; + for (i=1;i <= e->last_state;i++) { + SETFLOAT(argv+argc,e->duration[i] - e->duration[i-1]); + argc++; + SETFLOAT(argv+argc,e->finalvalues[i]); + argc++; + } + outlet_list(e->out2,&s_list,argc,(t_atom*)&argv); + +} + +void envgen_init(t_envgen *x,int argc,t_atom* argv) +{ + t_float* dur; + t_float* val; + t_float tdur = 0; + + if (!argc) return; + + x->duration[0] = 0; + + x->last_state = argc>>1; + envgen_resize(x,argc>>1); + + dur = x->duration; + val = x->finalvalues; + + if (argc) { + *val = atom_getfloat(argv++); + *dur = 0.0; + } + dur++;val++;argc--; + for (;argc > 0;argc--) { + tdur += atom_getfloat(argv++); +#ifdef DEBUG + post("dur =%f",tdur); +#endif + *dur++ = tdur; + argc--; + if (argc > 0) + *val++ = atom_getfloat(argv++); + else + *val++ = 0; +#ifdef DEBUG + post("val =%f",*(val-1)); +#endif + + } + +} + + + + + +void envgen_list(t_envgen *x,t_symbol* s, int argc,t_atom* argv) +{ + envgen_init(x,argc,argv); + if (glist_isvisible(x->w.glist)) { + envgen_drawme(x, x->w.glist, 0); + } +} + + +void envgen_float(t_envgen *x, t_floatarg f) +{ + int state = 0; + while (x->duration[state] < f && state < x->last_state) state++; + + if (state == 0 || f >= x->duration[x->last_state]) { + outlet_float(x->x_obj.ob_outlet,x->finalvalues[state]); + return; + } + outlet_float(x->x_obj.ob_outlet,x->finalvalues[state-1] + + (f - x->duration[state-1])* + (x->finalvalues[state] - x->finalvalues[state-1])/ + (x->duration[state] - x->duration[state-1])); +} + + +void envgen_bang(t_envgen *x) +{ + t_atom a[2]; + x->x_time = 0.0; + + + SETFLOAT(a,x->finalvalues[NONE]); + SETFLOAT(a+1,0); + outlet_list(x->x_obj.ob_outlet,&s_list,2,(t_atom*)&a); + +/* we don't force the first value anymore, so the first value + is actually with what we have left off at the end ... + this reduces clicks +*/ + x->x_state = ATTACK; + x->x_val = x->finalvalues[NONE]; + + SETFLOAT(a,x->finalvalues[x->x_state]); + SETFLOAT(a+1,x->duration[x->x_state]); + + outlet_list(x->x_obj.ob_outlet,&s_list,2,(t_atom*)&a); + clock_delay(x->x_clock,x->duration[x->x_state]); +} + + +static void envgen_sustain(t_envgen *x, t_floatarg f) +{ + if (f > 0 && f < x->last_state) + x->sustain_state = f; +} + + +static void envgen_tick(t_envgen* x) +{ + t_atom a[2]; + x->x_state++; + if (x->x_state <= x->last_state) { + float del = x->duration[x->x_state] - x->duration[x->x_state-1]; + clock_delay(x->x_clock,del); + SETFLOAT(a,x->finalvalues[x->x_state]); + SETFLOAT(a+1,del); + + outlet_list(x->x_obj.ob_outlet,&s_list,2,(t_atom*)&a); + } + else + clock_unset(x->x_clock); +} + +static void envgen_freeze(t_envgen* x, t_floatarg f) +{ + x->x_freeze = f; +} + +static void *envgen_new(t_symbol *s,int argc,t_atom* argv) +{ + t_envgen *x = (t_envgen *)pd_new(envgen_class); + + x->args = STATES; + x->finalvalues = getbytes( x->args*sizeof(t_float)); + x->duration = getbytes( x->args*sizeof(t_float)); +#ifdef DEBUG + post("finalvalues %x",x->finalvalues); +#endif + /* widget */ + + x->w.glist = (t_glist*) canvas_getcurrent(); + if (argc) { + x->w.width = atom_getfloat(argv++); + argc--; + } + else + x->w.width = 140; + + if (argc) { + x->w.height = atom_getfloat(argv++); + argc--; + } + else + x->w.height = 200; + + + + x->w.grabbed = 0; + x->resizing = 0; + /* end widget */ + + if (argc) + envgen_init(x,argc,argv); + else { + t_atom a[5]; + SETFLOAT(a,0); + SETFLOAT(a+1,50); + SETFLOAT(a+2,1); + SETFLOAT(a+3,50); + SETFLOAT(a+4,0); + envgen_init(x,5,a); + } + + x->x_val = 0.0; + x->x_state = NONE; + x->sustain_state = SUSTAIN; + x->x_freeze = 0; + + outlet_new(&x->x_obj, &s_float); + x->out2 = outlet_new(&x->x_obj, &s_float); + + x->x_clock = clock_new(x, (t_method) envgen_tick); + return (x); +} + + +void envgen_motion(t_envgen *x, t_floatarg dx, t_floatarg dy); +void envgen_click(t_envgen *x, + t_floatarg xpos, t_floatarg ypos, t_floatarg shift, t_floatarg ctrl, + t_floatarg alt); +void envgen_key(t_envgen *x, t_floatarg f); + + +void envgen_setup(void) +{ + envgen_class = class_new(gensym("envgen"), (t_newmethod)envgen_new, 0, + sizeof(t_envgen), 0,A_GIMME,0); + + class_addcreator((t_newmethod)envgen_new,gensym("envgen~"),A_GIMME,0); + class_addfloat(envgen_class, envgen_float); + + class_addbang(envgen_class,envgen_bang); + class_addlist(envgen_class,envgen_list); + class_addmethod(envgen_class,(t_method)envgen_sustain,gensym("sustain"),A_FLOAT); + + class_addmethod(envgen_class, (t_method)envgen_click, gensym("click"), + A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, 0); + class_addmethod(envgen_class, (t_method)envgen_motion, gensym("motion"), + A_FLOAT, A_FLOAT, 0); + class_addmethod(envgen_class, (t_method)envgen_key, gensym("key"), + A_FLOAT, 0); + + class_addmethod(envgen_class,(t_method)envgen_totaldur,gensym("duration"),A_FLOAT,NULL); + class_addmethod(envgen_class,(t_method)envgen_freeze,gensym("freeze"),A_FLOAT,NULL); + + + envgen_setwidget(); + class_setwidget(envgen_class,&envgen_widgetbehavior); + class_addmethod(envgen_class,(t_method)envgen_dump,gensym("dump"),A_NULL); +} -- cgit v1.2.1