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-rw-r--r--doc/help-pdp_canvas.pd162
-rw-r--r--modules/pdp_canvas.c417
2 files changed, 579 insertions, 0 deletions
diff --git a/doc/help-pdp_canvas.pd b/doc/help-pdp_canvas.pd
new file mode 100644
index 0000000..0e61f56
--- /dev/null
+++ b/doc/help-pdp_canvas.pd
@@ -0,0 +1,162 @@
+#N canvas 121 0 828 668 10;
+#X obj 234 469 pdp_xv;
+#X obj 227 100 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 123 139 loop \$1;
+#X obj 124 117 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 0
+1;
+#X msg 119 80 open \$1;
+#X obj 118 56 openpanel;
+#X obj 103 39 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 184 101 stop;
+#X obj 187 138 metro 70;
+#X obj 124 178 pdp_yqt;
+#X obj 36 177 pdp_v4l;
+#X obj 36 145 metro 70;
+#X obj 83 104 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 40 105 stop;
+#X obj 716 529 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
+1;
+#X obj 716 581 pdp_control;
+#X msg 716 554 thread \$1;
+#X floatatom 716 642 5 0 0 0 - - -;
+#X obj 716 613 route pdp_drop;
+#X text 35 641 written by Yves Degoyon ( ydegoyon@free.fr );
+#X floatatom 189 169 5 0 0 0 - - -;
+#X text 35 577 pdp_canvas : displaying several video sources;
+#X text 34 591 constructor : pdp_canvas <width> <height> <nb inputs>
+;
+#X text 419 495 <-- you can move video sources by dragging them around
+;
+#X obj 470 99 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 366 138 loop \$1;
+#X obj 367 116 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 0
+1;
+#X msg 362 79 open \$1;
+#X obj 361 55 openpanel;
+#X obj 346 38 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 427 100 stop;
+#X obj 430 137 metro 70;
+#X obj 367 177 pdp_yqt;
+#X obj 283 178 pdp_v4l;
+#X obj 290 154 metro 70;
+#X obj 337 113 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 294 114 stop;
+#X floatatom 432 168 5 0 0 0 - - -;
+#X obj 735 96 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 631 135 loop \$1;
+#X obj 632 113 tgl 15 0 empty empty empty 20 8 0 8 -262144 -1 -1 0
+1;
+#X msg 627 76 open \$1;
+#X obj 626 52 openpanel;
+#X obj 611 35 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 692 97 stop;
+#X obj 695 134 metro 70;
+#X obj 632 174 pdp_yqt;
+#X obj 548 176 pdp_v4l;
+#X obj 548 152 metro 70;
+#X obj 595 111 bng 15 250 50 0 empty empty empty 20 8 0 8 -262144 -1
+-1;
+#X msg 552 112 stop;
+#X floatatom 697 165 5 0 0 0 - - -;
+#X text 36 605 note : the maximum number of inputs is 10;
+#X text 36 618 ( easily hackable in the code );
+#X text 544 397 Change offsets of first video source;
+#X obj 548 351 pack f f;
+#X floatatom 549 312 5 0 0 0 - - -;
+#X floatatom 599 312 5 0 0 0 - - -;
+#X obj 589 331 t b f;
+#X text 564 294 X;
+#X text 609 293 Y;
+#X msg 548 375 offset 1 \$1 \$2;
+#X obj 81 315 loadbang;
+#X msg 173 540 select \$1 \$2;
+#X msg 279 539 drag \$1 \$2;
+#X msg 367 538 unselect;
+#X msg 154 432 cursor 1;
+#X msg 82 341 offset 2 320 0;
+#X msg 81 365 offset 3 256 240;
+#X obj 134 258 pdp_scale 320 240;
+#X obj 307 255 pdp_scale 320 240;
+#X obj 496 254 pdp_scale 320 240;
+#X msg 83 393 dim 640 480;
+#X obj 234 432 pdp_canvas 640 480 3;
+#X obj 234 497 route press drag release;
+#X connect 0 0 74 0;
+#X connect 1 0 8 0;
+#X connect 2 0 9 0;
+#X connect 3 0 2 0;
+#X connect 4 0 9 0;
+#X connect 5 0 4 0;
+#X connect 6 0 5 0;
+#X connect 7 0 8 0;
+#X connect 8 0 9 0;
+#X connect 9 0 69 0;
+#X connect 10 0 69 0;
+#X connect 11 0 10 0;
+#X connect 12 0 11 0;
+#X connect 13 0 11 0;
+#X connect 14 0 16 0;
+#X connect 15 0 18 0;
+#X connect 16 0 15 0;
+#X connect 18 0 17 0;
+#X connect 20 0 9 1;
+#X connect 24 0 31 0;
+#X connect 25 0 32 0;
+#X connect 26 0 25 0;
+#X connect 27 0 32 0;
+#X connect 28 0 27 0;
+#X connect 29 0 28 0;
+#X connect 30 0 31 0;
+#X connect 31 0 32 0;
+#X connect 32 0 70 0;
+#X connect 33 0 70 0;
+#X connect 34 0 33 0;
+#X connect 35 0 34 0;
+#X connect 36 0 34 0;
+#X connect 37 0 32 1;
+#X connect 38 0 45 0;
+#X connect 39 0 46 0;
+#X connect 40 0 39 0;
+#X connect 41 0 46 0;
+#X connect 42 0 41 0;
+#X connect 43 0 42 0;
+#X connect 44 0 45 0;
+#X connect 45 0 46 0;
+#X connect 46 0 71 0;
+#X connect 47 0 71 0;
+#X connect 48 0 47 0;
+#X connect 49 0 48 0;
+#X connect 50 0 48 0;
+#X connect 51 0 46 1;
+#X connect 55 0 61 0;
+#X connect 56 0 55 0;
+#X connect 57 0 58 0;
+#X connect 58 0 55 0;
+#X connect 58 1 55 1;
+#X connect 61 0 73 0;
+#X connect 62 0 67 0;
+#X connect 62 0 68 0;
+#X connect 62 0 72 0;
+#X connect 63 0 73 0;
+#X connect 64 0 73 0;
+#X connect 65 0 73 0;
+#X connect 66 0 0 0;
+#X connect 67 0 73 0;
+#X connect 68 0 73 0;
+#X connect 69 0 73 1;
+#X connect 70 0 73 2;
+#X connect 71 0 73 3;
+#X connect 72 0 0 0;
+#X connect 73 0 66 0;
+#X connect 73 0 0 0;
+#X connect 74 0 63 0;
+#X connect 74 1 64 0;
+#X connect 74 2 65 0;
diff --git a/modules/pdp_canvas.c b/modules/pdp_canvas.c
new file mode 100644
index 0000000..80ce63e
--- /dev/null
+++ b/modules/pdp_canvas.c
@@ -0,0 +1,417 @@
+/*
+ * 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 object allowing juxtaposition of frames from two inlets
+ * Written by Yves Degoyon
+ */
+
+
+
+#include "pdp.h"
+#include <math.h>
+
+static char *pdp_canvas_version = "pdp_canvas: version 0.1, display for several video sources, written by Yves Degoyon (ydegoyon@free.fr)";
+
+#define MAX_CANVAS_INPUT 10
+
+typedef struct pdp_canvas_struct
+{
+ t_object x_obj;
+ t_float x_f;
+
+ t_outlet *x_outlet0;
+ t_int x_dropped;
+ t_int x_queue_id;
+
+ t_int x_opacket;
+
+ t_int x_current;
+ t_float x_xmouse;
+ t_float x_ymouse;
+
+ t_int *x_packets;
+ t_int *x_widths;
+ t_int *x_heights;
+ t_float *x_xoffsets;
+ t_float *x_yoffsets;
+ t_int *x_sizes;
+
+ t_int x_owidth;
+ t_int x_oheight;
+ t_int x_osize;
+ t_int x_nbinputs;
+
+} t_pdp_canvas;
+
+static void pdp_canvas_process_yv12(t_pdp_canvas *x)
+{
+ t_int px, py, ppx, ppy, ii, nbs;
+ short int *pY, *pU, *pV;
+ short int *piY, *piU, *piV;
+ t_pdp *oheader;
+ short int *odata;
+ t_pdp *iheader;
+ short int *idata;
+
+ x->x_opacket = pdp_packet_new_image_YCrCb( x->x_owidth, x->x_oheight );
+ oheader = pdp_packet_header(x->x_opacket);
+ odata = (short int *)pdp_packet_data(x->x_opacket);
+
+ oheader->info.image.encoding = PDP_IMAGE_YV12;
+ oheader->info.image.width = x->x_owidth;
+ oheader->info.image.height = x->x_oheight;
+
+ memset( odata, 0x00, (x->x_osize + (x->x_osize>>1))<<1 );
+
+ pY = odata;
+ pV = odata+x->x_osize;
+ pU = odata+x->x_osize+(x->x_osize>>2);
+ for ( py=0; py<x->x_oheight; py++ )
+ {
+ for ( px=0; px<x->x_owidth; px++ )
+ {
+ nbs=0;
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ if ( x->x_packets[ii] != -1 )
+ {
+ if ( (px >= (int)x->x_xoffsets[ii]) && ( px < (int)x->x_xoffsets[ii] + x->x_widths[ii] )
+ && (py >= (int)x->x_yoffsets[ii]) && ( py < (int)x->x_yoffsets[ii] + x->x_heights[ii] )
+ )
+ {
+ nbs++;
+ idata = (short int *)pdp_packet_data(x->x_packets[ii]);
+ piY = idata;
+ piV = idata+x->x_sizes[ii];
+ piU = idata+x->x_sizes[ii]+(x->x_sizes[ii]>>2);
+ ppx = px-(int)x->x_xoffsets[ii];
+ ppy = py-(int)x->x_yoffsets[ii];
+ *(pY+py*x->x_owidth+px) += *(piY+ppy*x->x_widths[ii]+ppx);
+ if ( (px%2==0) && (py%2==0) )
+ {
+ *(pU+(py>>1)*(x->x_owidth>>1)+(px>>1)) +=
+ *(piU+(ppy>>1)*(x->x_widths[ii]>>1)+(ppx>>1));
+ *(pV+(py>>1)*(x->x_owidth>>1)+(px>>1)) +=
+ *(piV+(ppy>>1)*(x->x_widths[ii]>>1)+(ppx>>1));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ return;
+}
+
+static void pdp_canvas_sendpacket(t_pdp_canvas *x)
+{
+ /* unregister and propagate if valid dest packet */
+ pdp_packet_pass_if_valid(x->x_outlet0, &x->x_opacket);
+}
+
+static void pdp_canvas_process(t_pdp_canvas *x, t_int ni)
+{
+ int encoding;
+ t_pdp *header = 0;
+
+ /* check if image data packets are compatible */
+ if ( (header = pdp_packet_header(x->x_packets[ni]))
+ && (PDP_IMAGE == header->type)){
+
+ /* pdp_canvas_process inputs and write into active inlet */
+ switch(pdp_packet_header(x->x_packets[ni])->info.image.encoding){
+
+ case PDP_IMAGE_YV12:
+ pdp_queue_add(x, pdp_canvas_process_yv12, pdp_canvas_sendpacket, &x->x_queue_id);
+ break;
+
+ case PDP_IMAGE_GREY:
+ break;
+
+ default:
+ /* don't know the type, so dont pdp_canvas_process */
+ break;
+
+ }
+ }
+}
+
+static void pdp_canvas_offset(t_pdp_canvas *x, t_floatarg ni, t_floatarg xoffset, t_floatarg yoffset)
+{
+ if ( ( ni < 1 ) || ( ni > x->x_nbinputs ) )
+ {
+ post( "pdp_canvas : offset : wrong source : %d : must be between 1 and %d", ni, x->x_nbinputs );
+ return;
+ }
+ x->x_xoffsets[(int)ni-1] = xoffset;
+ x->x_yoffsets[(int)ni-1] = yoffset;
+}
+
+static void pdp_canvas_select(t_pdp_canvas *x, t_floatarg X, t_floatarg Y)
+{
+ t_int ii;
+
+ x->x_current = -1;
+ X = X*x->x_owidth;
+ Y = Y*x->x_oheight;
+ // post( "pdp_canvas : select %f %f", X, Y );
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ if ( x->x_packets[ii] != -1 )
+ {
+ if ( (X >= x->x_xoffsets[ii]) && ( X < x->x_xoffsets[ii] + x->x_widths[ii] )
+ && (Y >= x->x_yoffsets[ii]) && ( Y < x->x_yoffsets[ii] + x->x_heights[ii] )
+ )
+ {
+ x->x_current = ii;
+ x->x_xmouse = X;
+ x->x_ymouse = Y;
+ }
+ }
+ }
+}
+
+static void pdp_canvas_drag(t_pdp_canvas *x, t_floatarg X, t_floatarg Y)
+{
+ X = X*x->x_owidth;
+ Y = Y*x->x_oheight;
+ // post( "pdp_canvas : drag %f %f", dx, dy );
+ if ( x->x_current != -1 )
+ {
+ x->x_xoffsets[ x->x_current ] += (X-x->x_xmouse);
+ x->x_yoffsets[ x->x_current ] += (Y-x->x_ymouse);
+ x->x_xmouse = X;
+ x->x_ymouse = Y;
+ }
+}
+
+static void pdp_canvas_unselect(t_pdp_canvas *x)
+{
+ x->x_current = -1;
+}
+
+static void pdp_canvas_input(t_pdp_canvas *x, t_symbol *s, t_floatarg f, t_int ni)
+{
+ t_pdp *header;
+ short int *data;
+
+ /* if this is a register_ro message or register_rw message, register with packet factory */
+
+ if (s== gensym("register_rw"))
+ {
+ /* release the packet */
+ if ( x->x_packets[ni] != -1 )
+ {
+ pdp_packet_mark_unused(x->x_packets[ni]);
+ x->x_packets[ni] = -1;
+ }
+ x->x_dropped = pdp_packet_convert_ro_or_drop(&x->x_packets[ni], (int)f, pdp_gensym("image/YCrCb/*") );
+ if ( x->x_packets[ni] != -1 )
+ {
+ header = pdp_packet_header(x->x_packets[ni]);
+ x->x_widths[ni] = header->info.image.width;
+ x->x_heights[ni] = header->info.image.height;
+ x->x_sizes[ni] = x->x_widths[ni]*x->x_heights[ni];
+ }
+ }
+
+ if ((s == gensym("process")) && (-1 != x->x_packets[ni]) && (!x->x_dropped))
+ {
+ /* add the process method and callback to the process queue */
+ pdp_canvas_process(x, ni);
+ }
+}
+
+static void pdp_canvas_input0(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 0);
+}
+
+static void pdp_canvas_input1(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 1);
+}
+
+static void pdp_canvas_input2(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 2);
+}
+
+static void pdp_canvas_input3(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 3);
+}
+
+static void pdp_canvas_input4(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 4);
+}
+
+static void pdp_canvas_input5(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 5);
+}
+
+static void pdp_canvas_input6(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 6);
+}
+
+static void pdp_canvas_input7(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 7);
+}
+
+static void pdp_canvas_input8(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 8);
+}
+
+static void pdp_canvas_input9(t_pdp_canvas *x, t_symbol *s, t_floatarg f)
+{
+ pdp_canvas_input(x, s, f, 9);
+}
+
+static void pdp_canvas_free(t_pdp_canvas *x)
+{
+ t_int ii;
+
+ pdp_queue_finish(x->x_queue_id);
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ pdp_packet_mark_unused(x->x_packets[ii]);
+ }
+ pdp_packet_mark_unused(x->x_opacket);
+ if ( x->x_packets ) freebytes( x->x_packets, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_widths ) freebytes( x->x_widths, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_heights ) freebytes( x->x_heights, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_sizes ) freebytes( x->x_sizes, x->x_nbinputs*sizeof(t_int) );
+ if ( x->x_xoffsets ) freebytes( x->x_xoffsets, x->x_nbinputs*sizeof(t_float) );
+ if ( x->x_yoffsets ) freebytes( x->x_yoffsets, x->x_nbinputs*sizeof(t_float) );
+}
+
+t_class *pdp_canvas_class;
+
+void *pdp_canvas_new(t_symbol *s, int argc, t_atom *argv)
+{
+ t_pdp_canvas *x = (t_pdp_canvas *)pd_new(pdp_canvas_class);
+ t_int ii;
+ char *imes[32];
+
+ if ( argc != 3 )
+ {
+ post( "pdp_canvas : wrong constructor : pdp_canvas <width> <height> <nb inputs> (argc=%d)", argc);
+ return NULL;
+ }
+ if ( argv[0].a_type != A_FLOAT || argv[1].a_type != A_FLOAT ||
+ argv[2].a_type != A_FLOAT )
+ {
+ post( "pdp_canvas : wrong constructor : pdp_canvas <width> <height> <nb inputs>");
+ return NULL;
+ }
+
+ x->x_owidth = ( (int) argv[0].a_w.w_float / 8 ) * 8; // round to a multiple of 8
+ x->x_oheight = ( (int) argv[1].a_w.w_float / 8 ) * 8; // round to a multiple of 8
+ x->x_osize = x->x_owidth*x->x_oheight;
+ x->x_nbinputs = (int) argv[2].a_w.w_float;
+
+ if ( x->x_owidth < 0 )
+ {
+ post( "pdp_canvas : wrong width : %d", x->x_owidth);
+ return NULL;
+ }
+ if ( x->x_oheight < 0 )
+ {
+ post( "pdp_canvas : wrong height : %d", x->x_oheight);
+ return NULL;
+ }
+ if ( x->x_nbinputs < 0 )
+ {
+ post( "pdp_canvas : wrong number of inputs : %d", x->x_nbinputs);
+ return NULL;
+ }
+ if ( x->x_nbinputs > MAX_CANVAS_INPUT )
+ {
+ post( "pdp_canvas : number of inputs is too high : %d : only %d supported",
+ x->x_nbinputs, MAX_CANVAS_INPUT);
+ return NULL;
+ }
+
+ post ( "pdp_canvas : new %dx%d canvas with %d inputs", x->x_owidth, x->x_oheight, x->x_nbinputs );
+
+ x->x_packets = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_widths = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_heights = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_sizes = ( t_int* ) getbytes( x->x_nbinputs*sizeof(t_int) );
+ x->x_xoffsets = ( t_float* ) getbytes( x->x_nbinputs*sizeof(t_float) );
+ x->x_yoffsets = ( t_float* ) getbytes( x->x_nbinputs*sizeof(t_float) );
+
+ x->x_opacket = pdp_packet_new_image_YCrCb( x->x_owidth, x->x_oheight );
+
+ for ( ii=0; ii<x->x_nbinputs; ii++)
+ {
+ sprintf( (char*)imes, "pdp%d", ii );
+ inlet_new(&x->x_obj, &x->x_obj.ob_pd, gensym("pdp"), gensym((char*)imes) );
+ x->x_packets[ii] = -1;
+ x->x_xoffsets[ii] = 0.;
+ x->x_yoffsets[ii] = 0.;
+ }
+ x->x_current = -1;
+ x->x_outlet0 = outlet_new(&x->x_obj, &s_anything);
+
+ return (void *)x;
+}
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+void pdp_canvas_setup(void)
+{
+ char *imes[32];
+
+ // post( pdp_canvas_version );
+ pdp_canvas_class = class_new(gensym("pdp_canvas"), (t_newmethod)pdp_canvas_new,
+ (t_method)pdp_canvas_free, sizeof(t_pdp_canvas), 0, A_GIMME, A_NULL);
+ class_sethelpsymbol( pdp_canvas_class, gensym("pdp_canvas.pd") );
+
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input0, gensym("pdp0"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input2, gensym("pdp2"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input3, gensym("pdp3"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input4, gensym("pdp4"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input5, gensym("pdp5"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input6, gensym("pdp6"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input7, gensym("pdp7"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input8, gensym("pdp8"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_input9, gensym("pdp9"), A_SYMBOL, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_offset, gensym("offset"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_select, gensym("select"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_drag, gensym("drag"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
+ class_addmethod(pdp_canvas_class, (t_method)pdp_canvas_unselect, gensym("unselect"), A_NULL);
+
+}
+
+#ifdef __cplusplus
+}
+#endif