From c5e843b82205c04c618a423d3bb223f1f630b7a1 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Mon, 11 Aug 2003 04:26:00 +0000 Subject: added sources from pidip-0.12.4 svn path=/trunk/externals/pidip/; revision=837 --- modules/pdp_intrusion.c | 428 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 428 insertions(+) create mode 100644 modules/pdp_intrusion.c (limited to 'modules/pdp_intrusion.c') diff --git a/modules/pdp_intrusion.c b/modules/pdp_intrusion.c new file mode 100644 index 0000000..26c9ead --- /dev/null +++ b/modules/pdp_intrusion.c @@ -0,0 +1,428 @@ +/* + * PiDiP module. + * Copyright (c) by Yves Degoyon (ydegoyon@free.fr) + * + * 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. + * + */ + +/* This object is an adaptation of hologram effect from effectv + * but, in these paranoid times, i found it funnier to rename it as intrusion + * because it can detect moving objects ( targets ?? ) + * Originally written by Fukuchi Kentaro & others + * Pd-fication by Yves Degoyon + */ + + + +#include "pdp.h" +#include + +#define NB_IMAGES 4 +#define MAGIC_THRESHOLD 10 +static unsigned int fastrand_val; +#define inline_fastrand() (fastrand_val=fastrand_val*1103515245+12345) + +static char *pdp_intrusion_version = "pdp_intrusion: version 0.1, inspired by hologram from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)"; + +typedef struct pdp_intrusion_struct +{ + t_object x_obj; + t_float x_f; + + t_outlet *x_outlet0; + t_int x_packet0; + t_int x_packet1; + t_int x_dropped; + t_int x_queue_id; + + unsigned int x_noisepattern[256]; // noise pattern + t_int x_vwidth; + t_int x_vheight; + t_int x_vsize; + unsigned int x_encoding; + short int *x_images[NB_IMAGES]; + t_int x_rtimage; + short int *x_diff; + short int *x_bdata; + int x_threshold; + int x_phase; + int x_loopcount; + int x_threshfreq; + +} t_pdp_intrusion; + +/* check if there is a real difference with background image */ +short int *pdp_intrusion_diff(t_pdp_intrusion *x, short int *src) +{ + int i; + int Y; + int Yb; + short int *p=NULL; + short int *pb=NULL; + short int *r=NULL; + int v; + + p = src; + pb = x->x_bdata; + r = x->x_diff; + for(i=0; i<(x->x_vsize); i++) { + Y = (*p); + Yb = (*pb); + *r = (Yb - Y); + p++; pb++; + r++; + } + + return x->x_diff; +} + +static void pdp_intrusion_threshold(t_pdp_intrusion *x, t_floatarg fthreshold ) +{ + if ( fthreshold>0 && fthreshold<255 ) + { + x->x_threshold = ((int)fthreshold ) << 8; + } +} + +static void pdp_intrusion_background(t_pdp_intrusion *x ) +{ + int i, j; + + if ( ( x->x_images[0] == NULL ) || + ( x->x_images[1] == NULL ) || + ( x->x_images[2] == NULL ) || + ( x->x_images[3] == NULL ) ) + { + post( "pdp_intrusion_background : no images available !! " ); + return; + } + post( "pdp_intrusion : setting background" ); + + memcpy( x->x_bdata, x->x_images[0], (( x->x_vsize + (x->x_vsize>>1))<<1)); + + for( i=1; ix_vsize+(x->x_vsize>>1)); j++ ) + { + x->x_bdata[j] = (x->x_bdata[j]&x->x_images[i][j])+((x->x_bdata[j]^x->x_images[i][j])>>1); + } + } +} + +static void pdp_intrusion_allocate(t_pdp_intrusion *x, t_int newsize) +{ + int i; + + for ( i=0; ix_images[i] != NULL ) + { + freebytes( x->x_images[i], (x->x_vsize + (x->x_vsize>>1))<<1 ); + } + } + if ( x->x_diff != NULL ) + { + freebytes( x->x_diff, (x->x_vsize + (x->x_vsize>>1))<<1 ); + } + if ( x->x_bdata ) freebytes( x->x_bdata, (( x->x_vsize + (x->x_vsize>>1))<<1)); + + x->x_vsize = newsize; + for ( i=0; ix_images[i] = (short int*) getbytes((x->x_vsize + (x->x_vsize>>1))<<1); + } + x->x_diff = (short int*) getbytes((x->x_vsize + (x->x_vsize>>1))<<1); + x->x_bdata = (short int *)getbytes((( x->x_vsize + (x->x_vsize>>1))<<1)); +} + +static void pdp_intrusion_process_yv12(t_pdp_intrusion *x) +{ + t_pdp *header = pdp_packet_header(x->x_packet0); + short int *data = (short int *)pdp_packet_data(x->x_packet0); + t_pdp *newheader = pdp_packet_header(x->x_packet1); + short int *newdata = (short int *)pdp_packet_data(x->x_packet1); + int i; + + unsigned int totalnbpixels; + unsigned int u_offset; + unsigned int v_offset; + unsigned int totnbpixels; + int px, py; + short int *diff; + short int *sy, *su, *sv, t; + short int *sby, *sbu, *sbv; + short int *sny, *snu, *snv; + int Y=0, U=0, V=0; + + /* allocate all ressources */ + if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize ) + { + pdp_intrusion_allocate(x, header->info.image.width*header->info.image.height ); + post( "pdp_intrusion : reallocating buffers" ); + } + + x->x_vwidth = header->info.image.width; + x->x_vheight = header->info.image.height; + x->x_vsize = x->x_vwidth*x->x_vheight; + x->x_encoding = header->info.image.encoding; + + totalnbpixels = x->x_vsize; + u_offset = x->x_vsize; + v_offset = x->x_vsize + (x->x_vsize>>2); + totnbpixels = x->x_vsize + (x->x_vsize>>1); + + newheader->info.image.encoding = x->x_encoding; + newheader->info.image.width = x->x_vwidth; + newheader->info.image.height = x->x_vheight; + + /* copy images if necessary */ + memcpy( x->x_images[x->x_rtimage], data, (( x->x_vsize + (x->x_vsize>>1))<<1)); + x->x_rtimage=(x->x_rtimage+1)%4; + + if ( !x->x_bdata ) return; + + /* check pixels which has changed */ + diff = pdp_intrusion_diff(x, data); + + sy = data; + su = (data+x->x_vsize); + sv = (data+x->x_vsize+(x->x_vsize>>2)); + sby = x->x_bdata; + sbu = (x->x_bdata+x->x_vsize); + sbv = (x->x_bdata+x->x_vsize+(x->x_vsize>>2)); + sny = newdata; + snu = (newdata+x->x_vsize); + snv = (newdata+x->x_vsize+(x->x_vsize>>2)); + + for(py=1; pyx_vheight; py++) + { + if(((py+x->x_phase) & 0x7f)<0x58) + { + for(px=0; pxx_vwidth; px++) + { + if ( sv >= data + x->x_vsize + (x->x_vsize>>1 ) ) break; + if(*diff > x->x_threshold) + { + t = x->x_noisepattern[inline_fastrand()>>24]; + Y = (*sy) + t; + U = (*su) + t; + V = (*sv) + t; + Y = (Y>>1)-100; + U = (U>>1)-100; + V = V>>2; + Y += ((*sby)>>1)+((rand()%255)<<8); + U += ((*sbu)>>1)+((rand()%255)<<8); + V += ((*sbv)>>1)+((rand()%255)<<8); + // clipping + if((Y>>8)<20) Y=20<<8; + if((U>>8)<-108) U=-108<<8; + if((V>>8)<-108) V=-108<<8; + if((Y>>8)>255) Y = 255; + if((U>>8)>128) U = 128; + if((V>>8)>128) V = 128; + *sny = Y; + *snu = U; + *snv = V; + } + else + { + *sny = *sy; + *snu = *su; + *snv = *sv; + } + diff++; sy++; sby++; sny++; + if ( ((px+1)%2==0) && ((py+1)%2==0)) + { + su++; sbu++; snu++; + sv++; sbv++; snv++; + } + } + } + else + { + for(px=0; pxx_vwidth; px++) + { + if ( sv >= data + x->x_vsize + (x->x_vsize>>1 ) ) break; + if(*diff > x->x_threshold){ + t = x->x_noisepattern[inline_fastrand()>>24]; + Y = (*sy) + t; + U = (*su) + t; + V = (*sv) + t; + Y = (Y>>1)-100; + U = (U>>1)-100; + V = V>>2; + Y += ((*sby)>>1)+((rand()%255)<<8); + U += ((*sbu)>>1)+((rand()%255)<<8); + V += ((*sbv)>>1)+((rand()%255)<<8); + if((Y>>8)<0) Y=0; + if((U>>8)<-128) U=-128<<8; + if((V>>8)<-128) V=-128<<8; + if((Y>>8)>255) Y = 255; + if((U>>8)>128) U = 128; + if((V>>8)>128) V = 128; + *sny = Y; + *snu = U; + *snv = V; + } else { + *sny = *sy; + *snu = *su; + *snv = *sv; + } + diff++; sy++; sby++; sny++; + if ( ((px+1)%2==0) && ((py+1)%2==0) ) + { + su++; sbu++; snu++; + sv++; sbv++; snv++; + } + } + } + } + + x->x_phase-=37; + + return; +} + +static void pdp_intrusion_sendpacket(t_pdp_intrusion *x) +{ + /* release the packet */ + pdp_packet_mark_unused(x->x_packet0); + x->x_packet0 = -1; + + /* unregister and propagate if valid dest packet */ + pdp_packet_pass_if_valid(x->x_outlet0, &x->x_packet1); +} + +static void pdp_intrusion_process(t_pdp_intrusion *x) +{ + int encoding; + t_pdp *header = 0; + + /* check if image data packets are compatible */ + if ( (header = pdp_packet_header(x->x_packet0)) + && (PDP_IMAGE == header->type)){ + + /* pdp_intrusion_process inputs and write into active inlet */ + switch(pdp_packet_header(x->x_packet0)->info.image.encoding){ + + case PDP_IMAGE_YV12: + x->x_packet1 = pdp_packet_clone_rw(x->x_packet0); + pdp_queue_add(x, pdp_intrusion_process_yv12, pdp_intrusion_sendpacket, &x->x_queue_id); + break; + + case PDP_IMAGE_GREY: + // pdp_intrusion_process_packet(x); + break; + + default: + /* don't know the type, so dont pdp_intrusion_process */ + break; + + } + } +} + +static void pdp_intrusion_input_0(t_pdp_intrusion *x, t_symbol *s, t_floatarg f) +{ + /* if this is a register_ro message or register_rw message, register with packet factory */ + + if (s== gensym("register_rw")) + x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packet0, (int)f, pdp_gensym("image/YCrCb/*") ); + + if ((s == gensym("process")) && (-1 != x->x_packet0) && (!x->x_dropped)){ + + /* add the process method and callback to the process queue */ + pdp_intrusion_process(x); + + } +} + +static void pdp_intrusion_free(t_pdp_intrusion *x) +{ + int i; + + pdp_queue_finish(x->x_queue_id); + pdp_packet_mark_unused(x->x_packet0); + + for (i=0; ix_images[i] ) freebytes( x->x_images[i], (x->x_vsize + (x->x_vsize>>1))<<1 ); + } + +} + +t_class *pdp_intrusion_class; + +void *pdp_intrusion_new(void) +{ + int i; + + t_pdp_intrusion *x = (t_pdp_intrusion *)pd_new(pdp_intrusion_class); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_bang, gensym("background")); + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_float, gensym("threshold")); + + x->x_outlet0 = outlet_new(&x->x_obj, &s_anything); + + x->x_packet0 = -1; + x->x_packet1 = -1; + x->x_queue_id = -1; + + x->x_threshold = MAGIC_THRESHOLD<<8; + x->x_phase = 0; + x->x_bdata = NULL; + x->x_diff = NULL; + x->x_vsize = -1; + x->x_loopcount = 0; + x->x_threshfreq = 10; + + // initialize noise pattern + for(i=0; i<256; i++) + { + x->x_noisepattern[i] = (i * i * i / 40000)* i / 256; + } + + // initialize images + for(i=0; ix_images[i] = NULL; + } + x->x_rtimage=0; + + return (void *)x; +} + + +#ifdef __cplusplus +extern "C" +{ +#endif + + +void pdp_intrusion_setup(void) +{ +// post( pdp_intrusion_version ); + pdp_intrusion_class = class_new(gensym("pdp_intrusion"), (t_newmethod)pdp_intrusion_new, + (t_method)pdp_intrusion_free, sizeof(t_pdp_intrusion), 0, A_NULL); + + class_addmethod(pdp_intrusion_class, (t_method)pdp_intrusion_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL); + class_addmethod(pdp_intrusion_class, (t_method)pdp_intrusion_background, gensym("background"), A_NULL); + class_addmethod(pdp_intrusion_class, (t_method)pdp_intrusion_threshold, gensym("threshold"), A_FLOAT, A_NULL); + +} + +#ifdef __cplusplus +} +#endif -- cgit v1.2.1