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-rw-r--r--doc/help-pdp_pen.pd97
-rw-r--r--modules/pdp_pen.c341
2 files changed, 438 insertions, 0 deletions
diff --git a/doc/help-pdp_pen.pd b/doc/help-pdp_pen.pd
new file mode 100644
index 0000000..e0ccda0
--- /dev/null
+++ b/doc/help-pdp_pen.pd
@@ -0,0 +1,97 @@
+#N canvas 237 21 752 609 10;
+#X obj 268 64 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 123 136 loop \$1;
+#X obj 124 114 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 1
+1;
+#X msg 370 44 open \$1;
+#X obj 369 20 openpanel;
+#X obj 354 3 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X floatatom 316 99 5 0 0 0 - - -;
+#X msg 225 65 stop;
+#X obj 323 68 hsl 300 15 0 1000 0 0 empty empty empty -2 -6 0 8 -262144
+-1 -1 0 1;
+#X obj 257 135 metro 70;
+#X obj 252 167 pdp_yqt;
+#X obj 421 165 pdp_v4l;
+#X obj 430 135 metro 70;
+#X obj 475 101 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 432 102 stop;
+#X msg 517 133 open /dev/video;
+#X obj 561 456 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
+1;
+#X obj 561 508 pdp_control;
+#X msg 561 481 thread \$1;
+#X floatatom 561 569 5 0 0 0 - - -;
+#X obj 561 540 route pdp_drop;
+#X obj 239 343 pdp_pen;
+#X text 85 498 pdp_pen : free hand drawing object;
+#X text 85 514 written by Yves Degoyon ( ydegoyon@free.fr );
+#X text 85 528 on request from patrick ( 11h11.com );
+#X obj 238 387 pdp_xv;
+#X obj 238 419 route press drag release;
+#X msg 282 463 draw \$1 \$2;
+#X msg 163 344 cursor 1;
+#X msg 372 228 clear;
+#X text 420 229 Clear all drawings;
+#X msg 371 257 width \$1;
+#X floatatom 444 258 5 0 0 0 - - -;
+#X text 492 258 Width of the pen ( default = 3 );
+#X msg 370 289 rgb \$1 \$2 \$3;
+#X obj 468 292 pack f f f;
+#X floatatom 502 317 5 0 0 0 - - -;
+#X text 513 336 R;
+#X floatatom 551 318 5 0 0 0 - - -;
+#X floatatom 599 319 5 0 0 0 - - -;
+#X text 613 340 B;
+#X obj 599 290 t b f;
+#X text 558 338 G;
+#X obj 552 291 t b f;
+#X text 370 315 Color of the pen;
+#X msg 372 350 mode \$1;
+#X obj 438 352 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
+1;
+#X text 464 353 Mode ( 0=drawing \, 1=erase );
+#X text 464 366 ( default=0 );
+#X connect 0 0 9 0;
+#X connect 1 0 10 0;
+#X connect 2 0 1 0;
+#X connect 3 0 10 0;
+#X connect 4 0 3 0;
+#X connect 5 0 4 0;
+#X connect 6 0 9 1;
+#X connect 7 0 9 0;
+#X connect 8 0 6 0;
+#X connect 9 0 10 0;
+#X connect 10 0 21 0;
+#X connect 10 0 28 0;
+#X connect 11 0 21 0;
+#X connect 12 0 11 0;
+#X connect 13 0 12 0;
+#X connect 14 0 12 0;
+#X connect 15 0 11 0;
+#X connect 16 0 18 0;
+#X connect 17 0 20 0;
+#X connect 18 0 17 0;
+#X connect 20 0 19 0;
+#X connect 21 0 25 0;
+#X connect 25 0 26 0;
+#X connect 26 1 27 0;
+#X connect 27 0 21 0;
+#X connect 28 0 25 0;
+#X connect 29 0 21 0;
+#X connect 31 0 21 0;
+#X connect 32 0 31 0;
+#X connect 34 0 21 0;
+#X connect 35 0 34 0;
+#X connect 36 0 35 0;
+#X connect 38 0 43 0;
+#X connect 39 0 41 0;
+#X connect 41 0 35 0;
+#X connect 41 1 35 2;
+#X connect 43 0 35 0;
+#X connect 43 1 35 1;
+#X connect 45 0 21 0;
+#X connect 46 0 45 0;
diff --git a/modules/pdp_pen.c b/modules/pdp_pen.c
new file mode 100644
index 0000000..d682285
--- /dev/null
+++ b/modules/pdp_pen.c
@@ -0,0 +1,341 @@
+/*
+ * 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 a free hand drawing object
+ * Written by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include "yuv.h"
+#include <math.h>
+
+static char *pdp_pen_version = "pdp_pen: version 0.1, free hand drawing object written by Yves Degoyon (ydegoyon@free.fr)";
+
+typedef struct pdp_pen_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_red;
+ t_int x_green;
+ t_int x_blue;
+
+ t_int x_pwidth;
+ t_int x_mode; // 0=draw ( default), 1=erase
+
+ short int *x_bdata;
+
+} t_pdp_pen;
+
+static void pdp_pen_allocate(t_pdp_pen *x, t_int newsize)
+{
+ int i;
+
+ if ( x->x_bdata ) freebytes( x->x_bdata, (( x->x_vsize + (x->x_vsize>>1))<<1));
+
+ x->x_vsize = newsize;
+ x->x_bdata = (short int *)getbytes((( x->x_vsize + (x->x_vsize>>1))<<1));
+ memset( x->x_bdata, 0x00, (( x->x_vsize + (x->x_vsize>>1))<<1) );
+}
+
+static void pdp_pen_draw(t_pdp_pen *x, t_floatarg X, t_floatarg Y)
+{
+ short int *pbY, *pbU, *pbV;
+ t_int mx, Mx, my, My;
+ t_int px, py;
+
+ X = X*x->x_vwidth;
+ Y = Y*x->x_vheight;
+ // post( "pdp_pen : draw %f %f", X, Y );
+ if ( (X<0) || (X>x->x_vwidth) )
+ {
+ // post( "pdp_pen : draw : wrong X position : %f", X );
+ return;
+ }
+ if ( (Y<0) || (Y>x->x_vheight) )
+ {
+ // post( "pdp_pen : draw : wrong Y position : %f", Y );
+ return;
+ }
+ mx = (X-x->x_pwidth<0)?0:X-x->x_pwidth;
+ Mx = (X+x->x_pwidth>x->x_vwidth)?x->x_vwidth:X+x->x_pwidth;
+ my = (Y-x->x_pwidth<0)?0:Y-x->x_pwidth;
+ My = (Y+x->x_pwidth>x->x_vheight)?x->x_vheight:Y+x->x_pwidth;
+
+ pbY = x->x_bdata;
+ pbU = (x->x_bdata+x->x_vsize);
+ pbV = (x->x_bdata+x->x_vsize+(x->x_vsize>>2));
+ for ( px=mx; px<=Mx; px++ )
+ {
+ for ( py=my; py<=My; py++ )
+ {
+ if ( sqrt( pow( (px-X), 2 ) + pow( (py-Y), 2 ) ) < x->x_pwidth )
+ {
+ if ( x->x_mode == 0 )
+ {
+ *(pbY+py*x->x_vwidth+px) =
+ (yuv_RGBtoY( (x->x_blue << 16) + (x->x_green << 8) + x->x_red ))<<7;
+ *(pbU+(py>>1)*(x->x_vwidth>>1)+(px>>1)) =
+ (yuv_RGBtoU( (x->x_blue << 16) + (x->x_green << 8) + x->x_red ))-128<<8;
+ *(pbV+(py>>1)*(x->x_vwidth>>1)+(px>>1)) =
+ (yuv_RGBtoV( (x->x_blue << 16) + (x->x_green << 8) + x->x_red ))-128<<8;
+ }
+ if ( x->x_mode == 1 )
+ {
+ *(pbY+py*x->x_vwidth+px) = 0;
+ *(pbU+(py>>1)*(x->x_vwidth>>1)+(px>>1)) = 0;
+ *(pbV+(py>>1)*(x->x_vwidth>>1)+(px>>1)) = 0;
+ }
+ }
+ }
+ }
+}
+
+static void pdp_pen_clear(t_pdp_pen *x)
+{
+ if ( x->x_vsize > 0 )
+ {
+ memset( x->x_bdata, 0x00, (( x->x_vsize + (x->x_vsize>>1))<<1) );
+ }
+}
+
+static void pdp_pen_width(t_pdp_pen *x, t_floatarg width)
+{
+ if ( width > 0 )
+ {
+ x->x_pwidth = (int) width;
+ }
+}
+
+static void pdp_pen_mode(t_pdp_pen *x, t_floatarg mode)
+{
+ if ( ( mode == 0. ) || ( mode == 1. ) )
+ {
+ x->x_mode = (int) mode;
+ }
+}
+
+static void pdp_pen_rgb(t_pdp_pen *x, t_floatarg r, t_floatarg g, t_floatarg b)
+{
+ if ( ( r >= 0. ) && ( r <= 255. ) &&
+ ( g >= 0. ) && ( g <= 255. ) &&
+ ( b >= 0. ) && ( b <= 255. ) )
+ {
+ x->x_red = (int) r;
+ x->x_green = (int) g;
+ x->x_blue = (int) b;
+ if ( ( r == 0. ) && ( g == 0.) && ( b == 0. ) )
+ {
+ x->x_red=1;
+ x->x_green=1;
+ x->x_blue=1;
+ }
+ }
+}
+
+static void pdp_pen_process_yv12(t_pdp_pen *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);
+ t_int i;
+ t_int px, py;
+ short int *pY, *pU, *pV;
+ short int *pbY, *pbU, *pbV;
+ short int *pnY, *pnU, *pnV;
+
+ /* allocate all ressources */
+ if ( ((t_int)header->info.image.width != x->x_vwidth ) ||
+ ((t_int)header->info.image.height != x->x_vheight ) )
+ {
+ pdp_pen_allocate(x, header->info.image.width*header->info.image.height );
+ post( "pdp_pen : 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;
+
+ newheader->info.image.encoding = header->info.image.encoding;
+ newheader->info.image.width = x->x_vwidth;
+ newheader->info.image.height = x->x_vheight;
+
+ if ( !x->x_bdata ) return;
+
+ memcpy( newdata, data, (( x->x_vsize + (x->x_vsize>>1))<<1) );
+
+ pY = data;
+ pU = (data+x->x_vsize);
+ pV = (data+x->x_vsize+(x->x_vsize>>2));
+ pbY = x->x_bdata;
+ pbU = (x->x_bdata+x->x_vsize);
+ pbV = (x->x_bdata+x->x_vsize+(x->x_vsize>>2));
+ pnY = newdata;
+ pnU = (newdata+x->x_vsize);
+ pnV = (newdata+x->x_vsize+(x->x_vsize>>2));
+
+ for(py=1; py<x->x_vheight; py++)
+ {
+ for(px=0; px<x->x_vwidth; px++)
+ {
+ if ( *(pbY+py*x->x_vwidth+px) != 0 )
+ {
+ *(pnY+py*x->x_vwidth+px) = *(pbY+py*x->x_vwidth+px);
+ *(pnU+(py>>1)*(x->x_vwidth>>1)+(px>>1)) =
+ *(pbU+(py>>1)*(x->x_vwidth>>1)+(px>>1));
+ *(pnV+(py>>1)*(x->x_vwidth>>1)+(px>>1)) =
+ *(pbV+(py>>1)*(x->x_vwidth>>1)+(px>>1));
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_pen_sendpacket(t_pdp_pen *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_pen_process(t_pdp_pen *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_pen_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_pen_process_yv12, pdp_pen_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ // pdp_pen_process_packet(x);
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_pen_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_pen_input_0(t_pdp_pen *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_pen_process(x);
+ }
+}
+
+static void pdp_pen_free(t_pdp_pen *x)
+{
+ int i;
+
+ pdp_queue_finish(x->x_queue_id);
+ pdp_packet_mark_unused(x->x_packet0);
+
+}
+
+t_class *pdp_pen_class;
+
+void *pdp_pen_new(void)
+{
+ int i;
+
+ t_pdp_pen *x = (t_pdp_pen *)pd_new(pdp_pen_class);
+
+ 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_bdata = NULL;
+ x->x_vsize = -1;
+
+ x->x_red = 255;
+ x->x_green = 255;
+ x->x_blue = 255;
+
+ x->x_pwidth = 3;
+ x->x_mode = 0;
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_pen_setup(void)
+{
+// post( pdp_pen_version );
+ pdp_pen_class = class_new(gensym("pdp_pen"), (t_newmethod)pdp_pen_new,
+ (t_method)pdp_pen_free, sizeof(t_pdp_pen), 0, A_NULL);
+ class_sethelpsymbol( pdp_pen_class, gensym("pdp_pen.pd") );
+
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_input_0, gensym("pdp"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_draw, gensym("draw"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_clear, gensym("clear"), A_NULL);
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_width, gensym("width"), A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_rgb, gensym("rgb"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_pen_class, (t_method)pdp_pen_mode, gensym("mode"), A_DEFFLOAT, A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-29 13:26:30 +0000