From 2b60d55c919e7588f5aff15936e83c300b3660bb Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?IOhannes=20m=20zm=C3=B6lnig?= Date: Tue, 22 Mar 2005 20:58:25 +0000 Subject: zexy-2.0: - use of abstractions for objects that allow it - some objects are build both as externals and abstractions (as slower fallbacks) - code-layout is now 1:1 c-file<->object (this should allow for building of zexy as a collection of externals instead as a big library) - matrix-objects have moved to iemmatrix !! svn path=/trunk/externals/zexy/; revision=2641 --- src/z_swap.c | 262 ----------------------------------------------------------- 1 file changed, 262 deletions(-) delete mode 100644 src/z_swap.c (limited to 'src/z_swap.c') diff --git a/src/z_swap.c b/src/z_swap.c deleted file mode 100644 index bdf6770..0000000 --- a/src/z_swap.c +++ /dev/null @@ -1,262 +0,0 @@ -/* - the long waited for swap~-object that does a byte swap - of course, we unfortunately have to quantize the float-signal to 16bit (to get bytes) - - 1110:forum::für::umläute:1999 - */ - -#include "zexy.h" -#ifdef NT -#pragma warning( disable : 4244 ) -#pragma warning( disable : 4305 ) -#endif - -/* ------------------------ swap~ ----------------------------- */ -#define FLOAT2SHORT 32768. -#define SHORT2FLOAT 1./32768. - -static t_class *swap_class; - -typedef struct _swap -{ - t_object x_obj; - int swapper; -} t_swap; - -static void swap_float(t_swap *x, t_floatarg f) -{ - x->swapper = (f != 0); -} - -static void swap_bang(t_swap *x) -{ - x->swapper ^= 1; -} - -static t_int *swap_perform(t_int *w) -{ - t_swap *x = (t_swap *)(w[1]); - t_float *in = (t_float *)(w[2]); - t_float *out = (t_float *)(w[3]); - int n = (int)(w[4]); - - - if (x->swapper) - while (n--) { - short dummy = FLOAT2SHORT * *in++; - *out++ = SHORT2FLOAT * (short)( ((dummy & 0xFF) << 8) | ((dummy & 0xFF00) >> 8) ); - } - else while (n--) *out++ = *in++; - - return (w+5); -} - -static void swap_dsp(t_swap *x, t_signal **sp) -{ - dsp_add(swap_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); -} - -static void swap_helper(void) -{ - post("\n%c swap~-object for byteswapping a signal", HEARTSYMBOL); - post("<1/0> : turn the swapper on/off\n" - "'bang' : toggle the swapper on/off\n" - "'help' : view this\n" - "signal~"); - post("outlet : signal~"); -} - -static void *swap_new() -{ - t_swap *x = (t_swap *)pd_new(swap_class); - outlet_new(&x->x_obj, gensym("signal")); - x->swapper = 1; - return (x); -} - -void z_swaptilde_setup(void) -{ - swap_class = class_new(gensym("swap~"), (t_newmethod)swap_new, 0, - sizeof(t_swap), 0, A_DEFFLOAT, 0); - class_addmethod(swap_class, nullfn, gensym("signal"), 0); - class_addmethod(swap_class, (t_method)swap_dsp, gensym("dsp"), 0); - - class_addfloat(swap_class, swap_float); - class_addbang(swap_class, swap_bang); - - class_addmethod(swap_class, (t_method)swap_helper, gensym("help"), 0); - class_sethelpsymbol(swap_class, gensym("zexy/swap~")); -} - -/* ------------------------ blockmirror~ ----------------------------- */ - -/* mirrors a signalblock around it's center: - {x[0], x[1], ... x[n-1]} --> {x[n-1], x[n-2], ... x[0]} -*/ - -static t_class *blockmirror_class; - -typedef struct _blockmirror -{ - t_object x_obj; - int doit; - int blocksize; - t_float *blockbuffer; -} t_blockmirror; - -static void blockmirror_float(t_blockmirror *x, t_floatarg f) -{ - x->doit = (f != 0); -} - -static t_int *blockmirror_perform(t_int *w) -{ - t_blockmirror *x = (t_blockmirror *)(w[1]); - t_float *in = (t_float *)(w[2]); - t_float *out = (t_float *)(w[3]); - int n = (int)(w[4]); - if (x->doit) { - if (in==out){ - int N=n; - t_float *dummy=x->blockbuffer; - while(n--)*dummy++=*in++; - dummy--; - while(N--)*out++=*dummy--; - } else { - in+=n-1; - while(n--)*out++=*in--; - } - } else while (n--) *out++ = *in++; - return (w+5); -} - -static void blockmirror_dsp(t_blockmirror *x, t_signal **sp) -{ - if (x->blocksizes_n){ - if(x->blockbuffer)freebytes(x->blockbuffer, sizeof(t_float)*x->blocksize); - x->blocksize = sp[0]->s_n; - x->blockbuffer = getbytes(sizeof(t_float)*x->blocksize); - } - dsp_add(blockmirror_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); -} - -static void blockmirror_helper(void) -{ - post("\n%c blockmirror~-object for reverting a signal", HEARTSYMBOL); - post("'help' : view this\n" - "signal~"); - post("outlet : signal~"); -} - -static void *blockmirror_new() -{ - t_blockmirror *x = (t_blockmirror *)pd_new(blockmirror_class); - outlet_new(&x->x_obj, gensym("signal")); - x->doit = 1; - x->blocksize=0; - return (x); -} - -void blockmirror_setup(void) -{ - blockmirror_class = class_new(gensym("blockmirror~"), (t_newmethod)blockmirror_new, 0, - sizeof(t_blockmirror), 0, A_DEFFLOAT, 0); - class_addmethod(blockmirror_class, nullfn, gensym("signal"), 0); - class_addmethod(blockmirror_class, (t_method)blockmirror_dsp, gensym("dsp"), 0); - - class_addfloat(blockmirror_class, blockmirror_float); - - class_addmethod(blockmirror_class, (t_method)blockmirror_helper, gensym("help"), 0); - class_sethelpsymbol(blockmirror_class, gensym("zexy/blockmirror~")); -} - -/* ------------------------ blockswap~ ----------------------------- */ - -/* swaps a signalblock around it's center: - {x[0], x[1], ... x[n-1]} --> {x[n-1], x[n-2], ... x[0]} -*/ - -static t_class *blockswap_class; - -typedef struct _blockswap -{ - t_object x_obj; - int doit; - int blocksize; - t_float *blockbuffer; -} t_blockswap; - -static void blockswap_float(t_blockswap *x, t_floatarg f) -{ - x->doit = (f != 0); -} - -static t_int *blockswap_perform(t_int *w) -{ - t_blockswap *x = (t_blockswap *)(w[1]); - t_float *in = (t_float *)(w[2]); - t_float *out = (t_float *)(w[3]); - int N = (int)(w[4]); - int N2=N/2; - if (x->doit) { - int n=N2; - t_float *dummy=x->blockbuffer; - while(n--)*dummy++=*in++; - n=N-N2; - while(n--)*out++=*in++; - dummy=x->blockbuffer; - n=N2; - while(n--)*out++=*dummy++; - } else while (N--) *out++=*in++; - return (w+5); -} - -static void blockswap_dsp(t_blockswap *x, t_signal **sp) -{ - if (x->blocksize*2s_n){ - if(x->blockbuffer)freebytes(x->blockbuffer, sizeof(t_float)*x->blocksize); - x->blocksize = sp[0]->s_n/2; - x->blockbuffer = getbytes(sizeof(t_float)*x->blocksize); - } - dsp_add(blockswap_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); -} - -static void blockswap_helper(void) -{ - post("\n%c blockswap~-object for blockwise-swapping of a signal ", HEARTSYMBOL); - post("'help' : view this\n" - "signal~"); - post("outlet : signal~"); -} - -static void *blockswap_new() -{ - t_blockswap *x = (t_blockswap *)pd_new(blockswap_class); - outlet_new(&x->x_obj, gensym("signal")); - x->doit = 1; - x->blocksize=0; - return (x); -} - -void blockswap_setup(void) -{ - blockswap_class = class_new(gensym("blockswap~"), (t_newmethod)blockswap_new, 0, - sizeof(t_blockswap), 0, A_DEFFLOAT, 0); - class_addmethod(blockswap_class, nullfn, gensym("signal"), 0); - class_addmethod(blockswap_class, (t_method)blockswap_dsp, gensym("dsp"), 0); - - class_addfloat(blockswap_class, blockswap_float); - - class_addmethod(blockswap_class, (t_method)blockswap_helper, gensym("help"), 0); - class_sethelpsymbol(blockswap_class, gensym("zexy/blockswap~")); -} - - -/* ----------------------------------------------------------------- */ - -void z_swap_setup(void){ - z_swaptilde_setup(); - blockswap_setup(); - blockmirror_setup(); -} - -- cgit v1.2.1