aboutsummaryrefslogtreecommitdiff
path: root/modules/pdp_xcanvas.c
blob: 61adb71fb27000d41ab0cd6c8175152c91097af8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
/*
 *   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 video canvas which is also handling the graphical operations
 *  ( no need to plug it in pdp_xv )
 *  Written by Yves Degoyon                                 
 */



#include "pdp.h"
#include "pdp_xwindow.h"
#include <X11/extensions/XShm.h>
#include <math.h>

static char   *pdp_xcanvas_version = "pdp_xcanvas: version 0.1, display for several video sources, written by Yves Degoyon (ydegoyon@free.fr)";

#define MAX_CANVAS_INPUT 10
#define PDP_XCANVAS_AUTOCREATE_RETRY 10

typedef struct pdp_xcanvas_struct
{
    t_object x_obj;
    t_float x_f;

    int x_dropped;
    int x_queue_id;

    int x_opacket;

    int x_current;
    t_float x_xmouse;
    t_float x_ymouse;

    int *x_packets;
    int *x_widths;
    int *x_heights;
    t_float *x_xoffsets;
    t_float *x_yoffsets;
    int *x_sizes;

    int x_owidth;
    int x_oheight;
    int x_osize;
    int x_nbinputs;

    // X data
    t_outlet      *x_events;
    t_pdp_xwindow x_xwin;
    t_pdp_xvideo  x_xvid;
    Display       *x_dpy;
    t_symbol      *x_display;
    int           x_initialized;

} t_pdp_xcanvas;

static Bool pdp_xcanvas_shm_completion_event(Display *dpy, XEvent *ev, XPointer arg)
{
  if(ev->type == XShmGetEventBase(dpy) + ShmCompletion ) {
    return True;
  } else {
    return False;
  }
}

static void pdp_canvas_create(t_pdp_xcanvas* x)
{
    int i;
    if(x->x_initialized) return;

    post("pdp_xcanvas: pdp_canvas_create");

    x->x_xwin.winwidth = x->x_owidth;
    x->x_xwin.winheight = x->x_oheight;
    x->x_xvid.width = x->x_owidth;
    x->x_xvid.height = x->x_oheight;

    /* manually open a display */
    if (NULL == (x->x_dpy = XOpenDisplay(x->x_display->s_name))){
        post("pdp_xv: cant open display %s\n",x->x_display->s_name);
        x->x_initialized = false;
        return;
    }

    post("pdp_xcanvas: pdp_xvideo_create_on_display");

    /* create a window on the display */
    if (!(x->x_initialized = pdp_xwindow_create_on_display(&x->x_xwin, x->x_dpy))) goto exit_close_win;

    post("pdp_xcanvas: pdp_xvideo_open_on_display");

    /* open an xv port on the display */
    if (!(x->x_initialized = pdp_xvideo_open_on_display(&x->x_xvid, x->x_dpy))) goto exit_close_dpy;

    x->x_xwin.initialized = True;

    /* done */
    return;

    /* cleanup exits */
 exit_close_win:
    pdp_xwindow_close(&x->x_xwin); // cose window
 exit_close_dpy:
    XCloseDisplay(x->x_dpy);       // close display
    x->x_dpy = 0;
}

static void pdp_xcanvas_destroy(t_pdp_xcanvas* x)
{
    if (x->x_initialized){
        pdp_xvideo_close(&x->x_xvid);      // close xvideo connection
        pdp_xwindow_close(&x->x_xwin);     // close the window
        XCloseDisplay(x->x_dpy);           // close the display connection
        x->x_dpy = 0;
        x->x_initialized = 0;
    }
}

static void pdp_xcanvas_cursor(t_pdp_xcanvas *x, t_floatarg f)
{
    pdp_xwindow_cursor(&x->x_xwin, f);
}

static void pdp_xcanvas_process_yv12(t_pdp_xcanvas *x)
{
  int     px, py, ppx, ppy, ii, nbs;
  char      *pY, *pU, *pV;
  char      *ppY, *ppU, *ppV;
  t_pdp     *oheader;
  char      *odata, *pdata;
  t_pdp     *iheader;
  int     mx, dx, my, dy;

  if ( !x->x_initialized )
  {
     pdp_canvas_create( x ) ;
  }

  pY = (char *)x->x_xvid.xshmimage->data;
  pV = (char *)(x->x_xvid.xshmimage->data+x->x_osize);
  pU = (char *)(x->x_xvid.xshmimage->data+x->x_osize+(x->x_osize>>2));

  // paint it black
  for ( py=0; py<x->x_oheight; py++)
  {
    memset( pY+(py*x->x_owidth), 0, x->x_owidth );
    memset( pU+((py>>1)*(x->x_owidth>>1)), -128, (x->x_owidth>>1) ); 
    memset( pV+((py>>1)*(x->x_owidth>>1)), -128, (x->x_owidth>>1) );
  }

  for ( ii=0; ii<x->x_nbinputs; ii++)
  {
    if ( x->x_packets[ii] != -1 )
    {
      if ( x->x_xoffsets[ii] < -x->x_widths[ii] ) continue; 
      if ( x->x_xoffsets[ii] > x->x_owidth ) continue; 
      if ( x->x_yoffsets[ii] < -x->x_heights[ii] ) continue; 
      if ( x->x_yoffsets[ii] > x->x_oheight ) continue; 

      pdata   = (char *)pdp_packet_data(x->x_packets[ii]);
      ppY = pdata;
      ppV = pdata+x->x_sizes[ii];
      ppU = pdata+x->x_sizes[ii]+(x->x_sizes[ii]>>2);

      if ( x->x_xoffsets[ii] < 0 ) 
      {
        mx = -x->x_xoffsets[ii];
        dx = x->x_widths[ii]+x->x_xoffsets[ii];
      }
      else if ( x->x_xoffsets[ii] > x->x_owidth - x->x_widths[ii] ) 
      {
        mx = 0;
        dx = x->x_owidth-x->x_xoffsets[ii];
      }
      else
      {
        mx = 0;
        dx = x->x_widths[ii];
      }

      if ( x->x_yoffsets[ii] < 0 ) 
      {
        my = -x->x_yoffsets[ii];
        dy = x->x_heights[ii]+x->x_yoffsets[ii]-1;
      }
      else if ( x->x_yoffsets[ii] > x->x_oheight - x->x_heights[ii] ) 
      {
        my = 0;
        dy = x->x_oheight-x->x_yoffsets[ii]-1;
      }
      else
      {
        my = 0;
        dy = x->x_heights[ii]-1;
      }

      for ( py=x->x_yoffsets[ii]+my; py<x->x_yoffsets[ii]+dy; py++)
      {
         memcpy( pY+(py*x->x_owidth)+(int)x->x_xoffsets[ii]+mx, 
                     ppY+(py-(int)x->x_yoffsets[ii])*x->x_widths[ii]+mx, dx );
         memcpy( pU+((py>>1)*(x->x_owidth>>1))+((int)(x->x_xoffsets[ii]+mx)>>1), 
                     ppU+((py-(int)x->x_yoffsets[ii])>>1)*(x->x_widths[ii]>>1)+(mx>>1), (dx>>1) );
         memcpy( pV+((py>>1)*(x->x_owidth>>1))+((int)(x->x_xoffsets[ii]+mx)>>1), 
                     ppV+((py-(int)x->x_yoffsets[ii])>>1)*(x->x_widths[ii]>>1)+(mx>>1), (dx>>1) );
      }
    }
  }
  return;
}

static void pdp_xcanvas_display_packet(t_pdp_xcanvas *x)
{
 XEvent    xevent;

  /* receive events & output them */
  pdp_xwindow_send_events(&x->x_xwin, x->x_events);

  /* display */
  XvShmPutImage(x->x_xvid.dpy, x->x_xvid.xv_port, x->x_xwin.win, x->x_xwin.gc, x->x_xvid.xshmimage,
                0, 0, x->x_xvid.width, x->x_xvid.height, 0, 0, 
                x->x_xwin.winwidth, x->x_xwin.winheight, True);
  XIfEvent(x->x_xvid.dpy, &xevent, pdp_xcanvas_shm_completion_event, NULL);
  XFlush(x->x_xvid.dpy);
}

static void pdp_xcanvas_process(t_pdp_xcanvas *x, 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_BITMAP == header->type)){
    
	/* pdp_xcanvas_process inputs and write into active inlet */
	switch(pdp_packet_header(x->x_packets[ni])->info.image.encoding){

	case PDP_BITMAP_YV12:
            pdp_queue_add(x, pdp_xcanvas_process_yv12, pdp_xcanvas_display_packet, &x->x_queue_id);
	    break;

	default:
	    post( "pdp_xcanvas : unknow image type : %d", 
                   pdp_packet_header(x->x_packets[ni])->info.image.encoding );
	    break;
	    
	}
    }
}

static void pdp_xcanvas_offset(t_pdp_xcanvas *x, t_floatarg ni, t_floatarg xoffset, t_floatarg yoffset)
{
  if ( ( ni < 1 ) || ( ni > x->x_nbinputs ) )
  {
     post( "pdp_xcanvas : 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_xcanvas_select(t_pdp_xcanvas *x, t_floatarg X, t_floatarg Y)
{
 int ii;

  x->x_current = -1;
  X = X*x->x_owidth;
  Y = Y*x->x_oheight;
  // post( "pdp_xcanvas : 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_xcanvas_drag(t_pdp_xcanvas *x, t_floatarg X, t_floatarg Y)
{
  X = X*x->x_owidth;
  Y = Y*x->x_oheight;
  // post( "pdp_xcanvas : drag %f %f", X, Y );
  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_xcanvas_unselect(t_pdp_xcanvas *x)
{
  x->x_current = -1;
}

static void pdp_xcanvas_input(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f, 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("bitmap/yv12/*") );
      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_xcanvas_process(x, ni);
    }
}

static void pdp_xcanvas_input0(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 0);
}

static void pdp_xcanvas_input1(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 1);
}

static void pdp_xcanvas_input2(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 2);
}

static void pdp_xcanvas_input3(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 3);
}

static void pdp_xcanvas_input4(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 4);
}

static void pdp_xcanvas_input5(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 5);
}

static void pdp_xcanvas_input6(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 6);
}

static void pdp_xcanvas_input7(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 7);
}

static void pdp_xcanvas_input8(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 8);
}

static void pdp_xcanvas_input9(t_pdp_xcanvas *x, t_symbol *s, t_floatarg f)
{
  pdp_xcanvas_input(x, s, f, 9);
}

static void pdp_xcanvas_free(t_pdp_xcanvas *x)
{
 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(int) );
  if ( x->x_widths ) freebytes( x->x_widths, x->x_nbinputs*sizeof(int) );
  if ( x->x_heights ) freebytes( x->x_heights, x->x_nbinputs*sizeof(int) );
  if ( x->x_sizes ) freebytes( x->x_sizes, x->x_nbinputs*sizeof(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) );
  pdp_xcanvas_destroy(x);
  pdp_xvideo_free(&x->x_xvid);
  pdp_xwindow_free(&x->x_xwin);
}

t_class *pdp_xcanvas_class;

void *pdp_xcanvas_new(t_symbol *s, int argc, t_atom *argv)
{
  t_pdp_xcanvas *x = (t_pdp_xcanvas *)pd_new(pdp_xcanvas_class);
  int ii;
  char *imes[32];

  if ( argc != 3 )
  {
    post( "pdp_xcanvas : wrong constructor : pdp_xcanvas <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_xcanvas : wrong constructor : pdp_xcanvas <width> <height> <nb inputs>");
    return NULL;
  }

  x->x_events = outlet_new(&x->x_obj, &s_anything);

  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_xcanvas : wrong width : %d", x->x_owidth);
    return NULL;
  }
  if ( x->x_oheight < 0 )
  {
    post( "pdp_xcanvas : wrong height : %d", x->x_oheight);
    return NULL;
  }
  if ( x->x_nbinputs < 0 )
  {
    post( "pdp_xcanvas : wrong number of inputs : %d", x->x_nbinputs);
    return NULL;
  }
  if ( x->x_nbinputs > MAX_CANVAS_INPUT )
  {
    post( "pdp_xcanvas : number of inputs is too high : %d : only %d supported", 
          x->x_nbinputs, MAX_CANVAS_INPUT);
    return NULL;
  }

  post ( "pdp_xcanvas : new %dx%d canvas with %d inputs", x->x_owidth, x->x_oheight, x->x_nbinputs );

  x->x_packets = ( int* ) getbytes( x->x_nbinputs*sizeof(int) );
  x->x_widths = ( int* ) getbytes( x->x_nbinputs*sizeof(int) );
  x->x_heights = ( int* ) getbytes( x->x_nbinputs*sizeof(int) );
  x->x_sizes = ( int* ) getbytes( x->x_nbinputs*sizeof(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;

  pdp_xwindow_init(&x->x_xwin);
  pdp_xvideo_init(&x->x_xvid);

  x->x_display = gensym(":0");
  x->x_dpy = 0;
  x->x_initialized = 0;

  return (void *)x;
}


#ifdef __cplusplus
extern "C"
{
#endif


void pdp_xcanvas_setup(void)
{
 char *imes[32];

  // post( pdp_xcanvas_version );
  pdp_xcanvas_class = class_new(gensym("pdp_xcanvas"), (t_newmethod)pdp_xcanvas_new,
    	(t_method)pdp_xcanvas_free, sizeof(t_pdp_xcanvas), 0, A_GIMME, A_NULL);
  class_sethelpsymbol( pdp_xcanvas_class, gensym("pdp_xcanvas.pd") );

  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input0, gensym("pdp0"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input1, gensym("pdp1"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input2, gensym("pdp2"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input3, gensym("pdp3"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input4, gensym("pdp4"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input5, gensym("pdp5"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input6, gensym("pdp6"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input7, gensym("pdp7"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input8, gensym("pdp8"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_input9, gensym("pdp9"), A_SYMBOL, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_offset, gensym("offset"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_select, gensym("select"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_drag, gensym("drag"), A_DEFFLOAT, A_DEFFLOAT, A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_unselect, gensym("unselect"), A_NULL);
  class_addmethod(pdp_xcanvas_class, (t_method)pdp_xcanvas_cursor, gensym("cursor"), A_FLOAT, A_NULL);

}

#ifdef __cplusplus
}
#endif