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-rw-r--r--modules/pdp_mosaic.c312
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diff --git a/modules/pdp_mosaic.c b/modules/pdp_mosaic.c
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+/*
+ * 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 mosaic effect from effectv
+ * Originally written by Fukuchi Kentaro & others
+ * Pd-fication by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+#define MAGIC_THRESHOLD 30
+#define CENSOR_LEVEL 20
+
+static char *pdp_mosaic_version = "pdp_mosaic: version 0.1, port of mosaic from effectv( Fukuchi Kentaro ) adapted by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_mosaic_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;
+
+ t_int x_vwidth;
+ t_int x_vheight;
+ t_int x_vsize;
+ t_int x_censor_level;
+ t_int x_ssize;
+ short int *x_diff;
+ short int *x_bdata;
+ t_int x_snapshot;
+
+} t_pdp_mosaic;
+
+
+static void pdp_mosaic_ssize(t_pdp_mosaic *x, t_floatarg fssize )
+{
+ if ( ( fssize > 1 ) && ( fssize < x->x_vwidth ) )
+ {
+ x->x_ssize = (int)fssize;
+ }
+}
+
+static void pdp_mosaic_level(t_pdp_mosaic *x, t_floatarg flevel )
+{
+ if ( flevel > 0 )
+ {
+ x->x_censor_level = (int)flevel;
+ }
+}
+
+static void pdp_mosaic_background(t_pdp_mosaic *x )
+{
+ x->x_snapshot = 1;
+}
+
+static void pdp_mosaic_free_ressources(t_pdp_mosaic *x)
+{
+ if ( x->x_diff != NULL ) freebytes( x->x_diff, (x->x_vsize + (x->x_vsize>>1))<<1 );
+ if ( x->x_bdata != NULL ) freebytes( x->x_bdata, (( x->x_vsize + (x->x_vsize>>1))<<1));
+}
+
+static void pdp_mosaic_allocate(t_pdp_mosaic *x)
+{
+ int i;
+
+ 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));
+ if( !x->x_bdata || ! x->x_diff ) {
+ post( "pdp_mosaic : severe error : cannot allocate buffers" );
+ }
+
+}
+
+/* check if there is a real difference with background image */
+static void pdp_mosaic_diff(t_pdp_mosaic *x, short int *src)
+{
+ int i;
+ int Yy=0, Yu=0, Yv=0;
+ int Yby=0, Ybu=0, Ybv=0;
+ 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++)
+ {
+ Yy = (*p);
+ Yu = (*(p+x->x_vsize+(i>>2)));
+ if ( x->x_vsize+(x->x_vsize>>2)+(i>>2) > x->x_vsize+(x->x_vsize>>1) )
+ {
+ post ("pdp_mosaic : overflow : offset=%d limit=%d", x->x_vsize+(x->x_vsize>>2)+(i>>2),
+ x->x_vsize+(x->x_vsize>>1) );
+ return;
+ }
+ Yv = (*(p+x->x_vsize+(x->x_vsize>>2)+(i>>2)));
+ Yby = (*pb);
+ Ybu = (*(pb+x->x_vsize+(i>>2)));
+ Ybv = (*(pb+x->x_vsize+(x->x_vsize>>2)+(i>>2)));
+ if ( !r ) { post( "pdp_mosaic : hey, buffers are not allocated !!" ); return; };
+ *r = ( (Yy - Yby) + (Yu - Ybu) + (Yv - Ybv) );
+ r++;
+ }
+
+}
+
+static void pdp_mosaic_process_yv12(t_pdp_mosaic *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;
+
+ int px=0, py=0, xx, yy, y, u, v;
+ int count;
+
+ /* allocate all ressources */
+ if ( (int)(header->info.image.width*header->info.image.height) != x->x_vsize )
+ {
+ pdp_mosaic_free_ressources(x);
+ x->x_vwidth = header->info.image.width;
+ x->x_vheight = header->info.image.height;
+ x->x_vsize = x->x_vwidth*x->x_vheight;
+ pdp_mosaic_allocate(x);
+ post( "pdp_mosaic : reallocated buffers" );
+ }
+
+ if ( x->x_bdata && x->x_snapshot )
+ {
+ x->x_snapshot = 0;
+ memcpy( x->x_bdata, data, (x->x_vsize + (x->x_vsize>>1))<<1 );
+ }
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ pdp_mosaic_diff(x, data);
+
+ memcpy( newdata, data, (x->x_vsize + (x->x_vsize>>1))<<1 );
+
+ for(py=0; py<(x->x_vheight-x->x_ssize-1); py+=x->x_ssize)
+ {
+ for(px=0; px<(x->x_vwidth-x->x_ssize-1); px+=x->x_ssize)
+ {
+ count = 0;
+ for(yy=0; yy<x->x_ssize; yy++)
+ {
+ for(xx=0; xx<x->x_ssize; xx++)
+ {
+ count += *(x->x_diff + (py+yy)*x->x_vwidth + (px+xx) );
+ count += *(x->x_diff + x->x_vsize + (((py+yy)*x->x_vwidth)>>2) + ((px+xx)>>1) );
+ count += *(x->x_diff + x->x_vsize + (x->x_vsize>>2) + (((py+yy)*x->x_vwidth)>>2) + ((px+xx)>>1) );
+ }
+ }
+ if(count > x->x_censor_level)
+ {
+ // post( "pdp_mosaic : censored" );
+ y = *(data + (py+3)*x->x_vwidth + (px+3));
+ u = *(data + x->x_vsize + (((py+3)*x->x_vwidth)>>2) + ((px+3)>>1) );
+ v = *(data + x->x_vsize + (((py+3)*x->x_vwidth)>>2) + ((px+3)>>1) );
+ for(yy=0; yy<x->x_ssize; yy++)
+ {
+ for(xx=0; xx<x->x_ssize; xx++)
+ {
+ *(newdata + (py+yy)*x->x_vwidth + (px+xx)) = y;
+ *(newdata + x->x_vsize + (((py+yy)*x->x_vwidth)>>2) + ((px+xx)>>1) ) = u;
+ *(newdata + x->x_vsize + (x->x_vsize>>2) + (((py+yy)*x->x_vwidth)>>2) + ((px+xx)>>1) ) = v;
+ }
+ }
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_mosaic_sendpacket(t_pdp_mosaic *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_mosaic_process(t_pdp_mosaic *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_mosaic_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_mosaic_process_yv12, pdp_mosaic_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_mosaic_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_mosaic_input_0(t_pdp_mosaic *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_mosaic_process(x);
+ }
+}
+
+static void pdp_mosaic_free(t_pdp_mosaic *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+ pdp_mosaic_free_ressources(x);
+}
+
+t_class *pdp_mosaic_class;
+
+void *pdp_mosaic_new(void)
+{
+ int i;
+
+ t_pdp_mosaic *x = (t_pdp_mosaic *)pd_new(pdp_mosaic_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("level"));
+
+ 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_vsize = -1;
+ x->x_snapshot = 1;
+ x->x_ssize = 8; // square size
+ x->x_censor_level = CENSOR_LEVEL;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_mosaic_setup(void)
+{
+// post( pdp_mosaic_version );
+ pdp_mosaic_class = class_new(gensym("pdp_mosaic"), (t_newmethod)pdp_mosaic_new,
+ (t_method)pdp_mosaic_free, sizeof(t_pdp_mosaic), 0, A_NULL);
+
+ class_addmethod(pdp_mosaic_class, (t_method)pdp_mosaic_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_mosaic_class, (t_method)pdp_mosaic_background, gensym("background"), A_NULL);
+ class_addmethod(pdp_mosaic_class, (t_method)pdp_mosaic_level, gensym("level"), A_FLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
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