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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-22 20:58:25 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-22 20:58:25 +0000
commit2b60d55c919e7588f5aff15936e83c300b3660bb (patch)
tree14d860de7f28083d3756ad91b627de70f26788f6 /src/z_swap.c
parentc500bc542cb7cc78d6dac3f7da3bff626056b1aa (diff)
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
Diffstat (limited to 'src/z_swap.c')
-rw-r--r--src/z_swap.c262
1 files changed, 0 insertions, 262 deletions
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->blocksize<sp[0]->s_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*2<sp[0]->s_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();
-}
-