diff options
Diffstat (limited to 'modules/pdp_add.c')
| -rw-r--r-- | modules/pdp_add.c | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/modules/pdp_add.c b/modules/pdp_add.c new file mode 100644 index 0000000..9bf8c13 --- /dev/null +++ b/modules/pdp_add.c @@ -0,0 +1,205 @@ +/* + * 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" + +typedef struct pdp_add_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; // packet outlet + + int x_packet0; // current hot packet (left inlet) + int x_packet1; // current cold packet (right inlet) + int x_packet1next; // next cold packet (right inlet) + int x_queue_id; // task id in process queue (for callback cancelling) + int x_dropped; // indicate if a packet was dropped during register_rw cycle + +} t_pdp_add; + + + +static void pdp_add_process_yv12(t_pdp_add *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + t_pdp *header1 = pdp_packet_header(x->x_packet1); + void *data0 = pdp_packet_data (x->x_packet0); + void *data1 = pdp_packet_data (x->x_packet1); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + + // set hight so it includes the chroma frames + h = h + (h>>1); + + pdp_imageproc_add_process((short int*)data0, (short int*)data1, w, h); + + + return; +} + +static void pdp_add_process_grey(t_pdp_add *x) +{ + t_pdp *header0 = pdp_packet_header(x->x_packet0); + t_pdp *header1 = pdp_packet_header(x->x_packet1); + void *data0 = pdp_packet_data (x->x_packet0); + void *data1 = pdp_packet_data (x->x_packet1); + + unsigned int w = header0->info.image.width; + unsigned int h = header0->info.image.height; + + pdp_imageproc_add_process((short int*)data0, (short int*)data1, w, h); + + + return; +} + +static void pdp_add_process(t_pdp_add *x) +{ + int encoding; + + /* check if image data packets are compatible */ + if (pdp_type_compat_image(x->x_packet0, x->x_packet1)){ + + /* dispatch to process thread */ + switch(pdp_packet_header(x->x_packet0)->info.image.encoding){ + + case PDP_IMAGE_YV12: + pdp_add_process_yv12(x); + break; + + case PDP_IMAGE_GREY: + pdp_add_process_grey(x); + break; + + default: + break; + /* don't know the type, so dont process */ + + } + } +} + +/* this method is called after the thread has finished processing */ +static void pdp_add_sendpacket(t_pdp_add *x) +{ + + /* unregister (mark unused) packet and propagate if packet is valid */ + pdp_pass_if_valid(x->x_outlet0, &x->x_packet0); + +} + +static void pdp_add_input_0(t_pdp_add *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)){ + + /* if a cold packet was received in the meantime + swap it in, else keep the old one */ + + pdp_replace_if_valid(&x->x_packet1, &x->x_packet1next); + + + /* add the process method and callback to the process queue */ + + pdp_queue_add(x, pdp_add_process, pdp_add_sendpacket, &x->x_queue_id); + } +} + +static void pdp_add_input_1(t_pdp_add *x, t_symbol *s, t_floatarg f) +{ + /* store the packet and trow away + the old one, if there is any */ + + int p = (int)f; + + if(s == gensym("register_ro")) pdp_packet_copy_ro_or_drop(&x->x_packet1next, p); + +} + + + + + +static void pdp_add_free(t_pdp_add *x) +{ + /* remove process method from queue before deleting data */ + pdp_queue_finish(x->x_queue_id); + + /* delete stuff */ + pdp_packet_mark_unused(x->x_packet0); + pdp_packet_mark_unused(x->x_packet1); + pdp_packet_mark_unused(x->x_packet1next); + +} + +t_class *pdp_add_class; + + + +void *pdp_add_new(void) +{ + t_pdp_add *x = (t_pdp_add *)pd_new(pdp_add_class); + + /* init in/out */ + inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym("pdp1")); + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + /* init pdp vars */ + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_packet1next = -1; + x->x_queue_id = -1; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_add_setup(void) +{ + + + pdp_add_class = class_new(gensym("pdp_add"), (t_newmethod)pdp_add_new, + (t_method)pdp_add_free, sizeof(t_pdp_add), 0, A_NULL); + + + class_addmethod(pdp_add_class, (t_method)pdp_add_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_add_class, (t_method)pdp_add_input_1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif |