diff options
Diffstat (limited to 'modules/pdp_cheby.c')
| -rw-r--r-- | modules/pdp_cheby.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/modules/pdp_cheby.c b/modules/pdp_cheby.c new file mode 100644 index 0000000..4ba32a3 --- /dev/null +++ b/modules/pdp_cheby.c @@ -0,0 +1,233 @@ +/* + * Pure Data Packet module. + * Copyright (c) by Tom Schouten <pdp@zzz.kotnet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + + + +#include "pdp.h" +#include "pdp_mmx.h" + + +typedef struct pdp_cheby_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + + int x_packet0; + int x_queue_id; + int x_dropped; // indicate if a packet was dropped during register_rw cycle + + int x_channel; + + void *x_cheby; + + int x_iterations; + int x_order; + +} t_pdp_cheby; + + + +static void pdp_cheby_process_yv12(t_pdp_cheby *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + void *data0 = pdp_packet_data (x->x_packet0); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + unsigned int size = w*h; + unsigned int v_offset = size; + unsigned int u_offset = size + (size >> 2) ; + unsigned int i,j; + + short int * idata = (short int *)data0; + int ch = x->x_channel; + + if((ch == 0) || (ch==1)) pdp_imageproc_cheby_process(x->x_cheby, &idata[0], w, h, x->x_iterations ); + if((ch == 0) || (ch==2)) pdp_imageproc_cheby_process(x->x_cheby, &idata[v_offset], w>>1, h>>1, x->x_iterations); + if((ch == 0) || (ch==3)) pdp_imageproc_cheby_process(x->x_cheby, &idata[u_offset], w>>1, h>>1, x->x_iterations); + + return; + + +} + +static void pdp_cheby_process_grey(t_pdp_cheby *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + void *data0 = pdp_packet_data (x->x_packet0); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + short int * idata = (short int *)data0; + int ch = x->x_channel; + + if((ch == 0) || (ch==1)) pdp_imageproc_cheby_process(x->x_cheby, &idata[0], w, h, x->x_iterations); + + return; + + +} + +static void pdp_cheby_process(t_pdp_cheby *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + + /* check data packets */ + + if ((header0) && (PDP_IMAGE == header0->type)){ + + /* pdp_cheby_process inputs and write into active inlet */ + switch(header0->info.image.encoding){ + + case PDP_IMAGE_YV12: + pdp_cheby_process_yv12(x); + break; + + case PDP_IMAGE_GREY: + pdp_cheby_process_grey(x); + break; + + default: + break; + /* don't know the type, so dont pdp_cheby_process */ + + } + } + +} + +static void pdp_cheby_sendpacket(t_pdp_cheby *x) +{ + /* unregister and propagate if valid packet */ + pdp_pass_if_valid(x->x_outlet0, &x->x_packet0); +} + +static void pdp_cheby_input_0(t_pdp_cheby *x, t_symbol *s, t_floatarg f) +{ + + int p = (int)f; + + if (s== gensym("register_rw")) x->x_dropped = pdp_packet_copy_rw_or_drop(&x->x_packet0, p); + + + if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){ + + + /* add the process method and callback to the process queue */ + + pdp_queue_add(x, pdp_cheby_process, pdp_cheby_sendpacket, &x->x_queue_id); + } + +} + + + +static void pdp_cheby_coef(t_pdp_cheby *x, t_floatarg c, t_floatarg f) +{ + pdp_imageproc_cheby_setcoef(x->x_cheby, (int)c, f); +} + +static void pdp_cheby_reset(t_pdp_cheby *x) +{ + int i; + for (i = 0; i <= x->x_order; i++) + pdp_imageproc_cheby_setcoef(x->x_cheby, i, 0); +} + +static void pdp_cheby_channel(t_pdp_cheby *x, t_floatarg f) +{ + int ch = (int)f; + if ((ch < 1) || (ch > 3)) ch = 0; + x->x_channel = ch; +} + +static void pdp_cheby_iterations(t_pdp_cheby *x, t_floatarg f) +{ + int i = (int)f; + if (i<0) i = 0; + x->x_iterations = i; + +} +static void pdp_cheby_free(t_pdp_cheby *x) +{ + pdp_queue_finish(x->x_queue_id); + pdp_imageproc_cheby_delete(x->x_cheby); + pdp_packet_mark_unused(x->x_packet0); + +} + +t_class *pdp_cheby_class; + + + +void *pdp_cheby_new(t_floatarg f) +{ + t_pdp_cheby *x = (t_pdp_cheby *)pd_new(pdp_cheby_class); + int order = (int)(f); + + if (order < 2) order = 2; + + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("float"), gensym("iterations")); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_queue_id = -1; + + x->x_cheby = pdp_imageproc_cheby_new(order); + + // default: process all channels + x->x_channel = 0; + x->x_iterations = 1; + x->x_order = order; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_cheby_setup(void) +{ + + + pdp_cheby_class = class_new(gensym("pdp_cheby"), (t_newmethod)pdp_cheby_new, + (t_method)pdp_cheby_free, sizeof(t_pdp_cheby), 0, A_DEFFLOAT, A_NULL); + + + class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_coef, gensym("coef"), A_FLOAT, A_FLOAT, A_NULL); + class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_iterations, gensym("iterations"), A_FLOAT, A_NULL); + class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_channel, gensym("chan"), A_FLOAT, A_NULL); + class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_cheby_class, (t_method)pdp_cheby_reset, gensym("reset"), A_NULL); + +} + +#ifdef __cplusplus +} +#endif |