got everything building using the template Makefile

svn path=/trunk/externals/unauthorized/; revision=15173

1 files changed, 823 insertions, 0 deletions

diff --git a/exciter.c b/exciter.c
new file mode 100644
index 0000000..cfbd365
--- /dev/null
+++ b/exciter.c
@@ -0,0 +1,823 @@
+/* Copyright (c) 2002 Yves Degoyon.                                             */
+/* For information on usage and redistribution, and for a DISCLAIMER OF ALL     */
+/* WARRANTIES, see the file, "LICENSE.txt," in this distribution.               */
+/*                                                                              */
+/* exciter : a graphical object which enables                                  */
+/* to schedule bang events on a time scale                                      */
+/*                                                                              */
+/* 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.                       */
+/*                                                                              */
+/* See file LICENSE for further informations on licensing terms.                */
+/*                                                                              */
+/* 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.  */
+/*                                                                              */
+/* Based on PureData by Miller Puckette and others.                             */
+/*                                                                              */
+/* Made while listening to :                                                    */
+/*                                                                              */
+/* "You're a maniac"                                                            */
+/* "To fullfill the emptyness"                                                  */
+/* Mecano ( no, not the spanish ones !!! ) - Escape The Human Myth              */
+/* ---------------------------------------------------------------------------- */
+
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+#include <ctype.h>
+#include <time.h>
+#include <sys/time.h>
+#include "m_pd.h"
+#include "m_imp.h"
+#include "g_canvas.h"
+
+#include "exciter.h"
+
+#ifdef _WIN32
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+/* needed to create a exciter from PD's menu
+void canvas_objtext(t_glist *gl, int xpos, int ypos, int selected, t_binbuf *b);
+void canvas_startmotion(t_canvas *x);
+*/
+
+#define DEFAULT_EXCITER_WIDTH 200
+#define DEFAULT_EXCITER_HEIGHT 200
+#define DEFAULT_EXCITER_GRAIN 0.1
+#define DEFAULT_EXCITER_NBEVENTS 8
+
+#define EXCITER_PIXEL_GRAIN 5
+
+static char   *exciter_version = "exciter: a bang-events sequencer, version 0.5 (ydegoyon@free.fr)"; 
+
+t_widgetbehavior exciter_widgetbehavior;
+static t_class *exciter_class;
+static int excitercount=0;
+
+static int guidebug=0;
+static int pointsize = 5;
+
+#define SYS_VGUI2(a,b) if (guidebug) \
+                         post(a,b);\
+                         sys_vgui(a,b)
+
+#define SYS_VGUI3(a,b,c) if (guidebug) \
+                         post(a,b,c);\
+                         sys_vgui(a,b,c)
+
+#define SYS_VGUI4(a,b,c,d) if (guidebug) \
+                         post(a,b,c,d);\
+                         sys_vgui(a,b,c,d)
+
+#define SYS_VGUI5(a,b,c,d,e) if (guidebug) \
+                         post(a,b,c,d,e);\
+                         sys_vgui(a,b,c,d,e)
+
+#define SYS_VGUI6(a,b,c,d,e,f) if (guidebug) \
+                         post(a,b,c,d,e,f);\
+                         sys_vgui(a,b,c,d,e,f)
+
+#define SYS_VGUI7(a,b,c,d,e,f,g) if (guidebug) \
+                         post(a,b,c,d,e,f,g);\
+                         sys_vgui(a,b,c,d,e,f,g)
+
+#define SYS_VGUI8(a,b,c,d,e,f,g,h) if (guidebug) \
+                         post(a,b,c,d,e,f,g,h);\
+                         sys_vgui(a,b,c,d,e,f,g,h)
+
+#define SYS_VGUI9(a,b,c,d,e,f,g,h,i) if (guidebug) \
+                         post(a,b,c,d,e,f,g,h,i);\
+                         sys_vgui(a,b,c,d,e,f,g,h,i)
+
+#define SYS_VGUI13(a,b,c,d,e,f,g,h,i,j,k,l,m) if (guidebug) \
+                         post(a,b,c,d,e,f,g,h,i,j,k,l,m);\
+                         sys_vgui(a,b,c,d,e,f,g,h,i,j,k,l,m)
+
+/* drawing functions */
+
+/* draw an event */
+static void exciter_draw_gem(t_exciter *x, t_glist *glist, t_int ix, t_int iy)
+{
+  t_int polyray = ( x->x_height / x->x_nbevents) / 2;
+  t_canvas *canvas=glist_getcanvas(glist);
+
+    SYS_VGUI13(".x%x.c create polygon %d %d %d %d %d %d %d %d -outline #000000 -fill #FFFFFF -tags %xEVENT%.4d%.4d\n",
+	     canvas, 
+             text_xpix(&x->x_obj, glist) + ix*EXCITER_PIXEL_GRAIN, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (iy+1)*x->x_height/x->x_nbevents + 2*polyray,
+             text_xpix(&x->x_obj, glist) + ix*EXCITER_PIXEL_GRAIN + polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (iy+1)*x->x_height/x->x_nbevents + polyray,
+             text_xpix(&x->x_obj, glist) + ix*EXCITER_PIXEL_GRAIN + 2*polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (iy+1)*x->x_height/x->x_nbevents,
+             text_xpix(&x->x_obj, glist) + ix*EXCITER_PIXEL_GRAIN + polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (iy+1)*x->x_height/x->x_nbevents - polyray,
+	     x, ix, iy);
+}
+
+/* delete an event */
+static void exciter_delete_gem(t_exciter *x, t_glist *glist, t_int ix, t_int iy)
+{
+  t_canvas *canvas=glist_getcanvas(glist);
+
+    SYS_VGUI5(".x%x.c delete %xEVENT%.4d%.4d\n", canvas, x, ix, iy );
+}
+
+static void exciter_draw_update(t_exciter *x, t_glist *glist)
+{
+  int ei, gi;
+
+    t_canvas *canvas=glist_getcanvas(glist);
+    for ( ei=0; ei<x->x_nbevents; ei++ )
+    {
+      for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+      {
+        if( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi) == 1 )
+        {
+           exciter_draw_gem(x, glist, gi, ei );
+        }
+        else
+        {
+           exciter_delete_gem(x, glist, gi, ei );
+        }
+      }
+    }
+}
+
+static void exciter_draw_new(t_exciter *x, t_glist *glist)
+{
+  t_canvas *canvas=glist_getcanvas(glist);
+  t_int ei;
+
+    SYS_VGUI7(".x%x.c create rectangle %d %d %d %d -outline #000000 -fill #902181 -tags %xLINE\n",
+	     canvas, text_xpix(&x->x_obj, glist), text_ypix(&x->x_obj, glist),
+	     text_xpix(&x->x_obj, glist)+x->x_width, text_ypix(&x->x_obj, glist)+x->x_height,
+	     x);
+    SYS_VGUI5(".x%x.c create text %d %d -font -*-courier-bold--normal--10-* -text \"0 s\" -tags %xLOWERCAPTION\n",
+	     canvas, text_xpix(&x->x_obj, glist), text_ypix(&x->x_obj, glist) + x->x_height + 10, x );
+    SYS_VGUI6(".x%x.c create text %d %d -font -*-courier-bold--normal--10-* -text \"%.2f s\" -tags %xHIGHERCAPTION\n",
+	     canvas, text_xpix(&x->x_obj, glist) + x->x_width, text_ypix(&x->x_obj, glist) + x->x_height + 10, 
+             x->x_width/EXCITER_PIXEL_GRAIN*x->x_timegrain , x);
+    SYS_VGUI7(".x%x.c create rectangle %d %d %d %d -outline #000000 -fill #000000 -tags %xIN\n",
+	     canvas, text_xpix(&x->x_obj, glist), 
+             text_ypix(&x->x_obj, glist) - 2,
+	     text_xpix(&x->x_obj, glist) + 5, 
+             text_ypix(&x->x_obj, glist) ,
+	     x);
+    if ( x->x_nbevents > 1 )
+    {
+      for ( ei=0; ei<x->x_nbevents; ei++ )
+      {
+         SYS_VGUI8(".x%x.c create rectangle %d %d %d %d -outline #000000 -fill #000000 -tags %xOUT%d\n",
+	     canvas, text_xpix(&x->x_obj, glist) + ( ei * (x->x_width - 5) )/ (x->x_nbevents-1), 
+             text_ypix(&x->x_obj, glist) + x->x_height,
+	     text_xpix(&x->x_obj, glist) + ( ei * (x->x_width - 5) )/ (x->x_nbevents-1) + 5, 
+             text_ypix(&x->x_obj, glist) + x->x_height + 2,
+	     x, ei);
+      }
+    }
+    else
+    {
+       SYS_VGUI8(".x%x.c create rectangle %d %d %d %d -outline #000000 -fill #000000 -tags %xOUT%d\n",
+	     canvas, text_xpix(&x->x_obj, glist), 
+             text_ypix(&x->x_obj, glist) + x->x_height,
+	     text_xpix(&x->x_obj, glist) + 5, 
+             text_ypix(&x->x_obj, glist) + x->x_height + 2,
+	     x, 0);
+    }
+    canvas_fixlinesfor( canvas, (t_text*)x );
+}
+
+static void exciter_draw_move(t_exciter *x, t_glist *glist)
+{
+  t_canvas *canvas=glist_getcanvas(glist);
+  t_int polyray = ( x->x_height / x->x_nbevents) / 2;
+  t_int ei, gi;
+
+    SYS_VGUI7(".x%x.c coords %xLINE %d %d %d %d \n",
+	     canvas, x, text_xpix(&x->x_obj, glist), text_ypix(&x->x_obj, glist),
+	     text_xpix(&x->x_obj, glist)+x->x_width, text_ypix(&x->x_obj, glist)+x->x_height
+	     );
+    SYS_VGUI5(".x%x.c coords %xLOWERCAPTION %d %d\n",
+	     canvas, x, text_xpix(&x->x_obj, glist), text_ypix(&x->x_obj, glist) + x->x_height + 10 );
+    SYS_VGUI5(".x%x.c coords %xHIGHERCAPTION %d %d\n",
+	     canvas, x, text_xpix(&x->x_obj, glist) + x->x_width, text_ypix(&x->x_obj, glist) + x->x_height + 10);
+    SYS_VGUI7(".x%x.c coords %xIN %d %d %d %d\n",
+	     canvas, x, text_xpix(&x->x_obj, glist), 
+             text_ypix(&x->x_obj, glist) - 2,
+	     text_xpix(&x->x_obj, glist) + 5, 
+             text_ypix(&x->x_obj, glist)
+	     );
+    if ( x->x_nbevents > 1 )
+    {
+      for ( ei=0; ei<x->x_nbevents; ei++ )
+      {
+         SYS_VGUI8(".x%x.c coords %xOUT%d %d %d %d %d\n",
+	     canvas, x, ei, text_xpix(&x->x_obj, glist) + ( ei * (x->x_width - 5) )/ (x->x_nbevents-1), 
+             text_ypix(&x->x_obj, glist) + x->x_height,
+	     text_xpix(&x->x_obj, glist) + ( ei * (x->x_width - 5) )/ (x->x_nbevents-1) + 5, 
+             text_ypix(&x->x_obj, glist) + x->x_height + 2
+	     );
+      }
+    }
+    else
+    {
+       SYS_VGUI8(".x%x.c coords %xOUT%d %d %d %d %d\n",
+	     canvas, x, 0, text_xpix(&x->x_obj, glist), 
+             text_ypix(&x->x_obj, glist) + x->x_height,
+	     text_xpix(&x->x_obj, glist) + 5, 
+             text_ypix(&x->x_obj, glist) + x->x_height + 2
+	     );
+    }
+    for ( ei=0; ei<x->x_nbevents; ei++ )
+    {
+      for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+      {
+         SYS_VGUI13(".x%x.c coords %xEVENT%.4d%.4d %d %d %d %d %d %d %d %d\n",
+	     canvas, x, gi, ei,  
+             text_xpix(&x->x_obj, glist) + gi*EXCITER_PIXEL_GRAIN, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (ei+1)*x->x_height/x->x_nbevents + 2*polyray,
+             text_xpix(&x->x_obj, glist) + gi*EXCITER_PIXEL_GRAIN + polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (ei+1)*x->x_height/x->x_nbevents + polyray,
+             text_xpix(&x->x_obj, glist) + gi*EXCITER_PIXEL_GRAIN + 2*polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (ei+1)*x->x_height/x->x_nbevents,
+             text_xpix(&x->x_obj, glist) + gi*EXCITER_PIXEL_GRAIN + polyray, 
+             text_ypix(&x->x_obj, glist) + x->x_height - (ei+1)*x->x_height/x->x_nbevents - polyray
+	     );
+       }
+    }
+    canvas_fixlinesfor( canvas, (t_text*)x );
+}
+
+static void exciter_draw_erase(t_exciter* x,t_glist* glist)
+{
+  t_canvas *canvas=glist_getcanvas(glist);
+  int i, ei, gi;
+
+    SYS_VGUI3(".x%x.c delete %xLINE\n", canvas, x );
+    SYS_VGUI3(".x%x.c delete %xLOWERCAPTION\n", canvas, x );
+    SYS_VGUI3(".x%x.c delete %xHIGHERCAPTION\n", canvas, x );
+    SYS_VGUI3(".x%x.c delete %xIN\n", canvas, x );
+    for ( ei=0; ei<x->x_nbevents; ei++ )
+    {
+      for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+      {
+        if( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi) != 0 )
+        {
+           exciter_delete_gem( x, glist, gi, ei );
+        }
+      }
+      SYS_VGUI4(".x%x.c delete %xOUT%d\n", canvas, x, ei );
+    }
+}
+
+static void exciter_draw_select(t_exciter* x,t_glist* glist)
+{
+  t_canvas *canvas=glist_getcanvas(glist);
+
+    if(x->x_selected)
+    {
+        /* sets the main item in blue */
+	SYS_VGUI3(".x%x.c itemconfigure %xLINE -outline #0000FF\n", canvas, x);
+
+    }
+    else
+    {
+        /* sets the main item in black */
+	SYS_VGUI3(".x%x.c itemconfigure %xLINE -outline #000000\n", canvas, x);
+    }
+}
+
+/* ------------------------ exciter widgetbehaviour----------------------------- */
+
+
+static void exciter_getrect(t_gobj *z, t_glist *owner,
+			    int *xp1, int *yp1, int *xp2, int *yp2)
+{
+   t_exciter* x = (t_exciter*)z;
+
+   *xp1 = text_xpix(&x->x_obj, owner);
+   *yp1 = text_ypix(&x->x_obj, owner);
+   *xp2 = text_xpix(&x->x_obj, owner)+x->x_width;
+   *yp2 = text_ypix(&x->x_obj, owner)+x->x_height;
+}
+
+static void exciter_save(t_gobj *z, t_binbuf *b)
+{
+   t_exciter *x = (t_exciter *)z;
+   int ei,gi;
+
+   binbuf_addv(b, "ssiisiiifii", gensym("#X"),gensym("obj"),
+		(t_int)x->x_obj.te_xpix, (t_int)x->x_obj.te_ypix,
+		atom_getsymbol(binbuf_getvec(x->x_obj.te_binbuf)),
+        x->x_width, x->x_height,
+		x->x_nbevents, x->x_timegrain,
+                x->x_loop, x->x_save 
+                );
+   if ( x->x_save ) 
+   {
+      for ( ei=0; ei<x->x_nbevents; ei++ )
+      {
+        for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+        {
+           if( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi) == 1 )
+           {
+             // post( "exciter : saving ( %d, %d )", ei, gi );
+             binbuf_addv(b, "ii", ei, gi );
+           }
+        }
+      }
+   }
+   binbuf_addv(b, ";");
+}
+
+static void exciter_properties(t_gobj *z, t_glist *owner)
+{
+   char buf[800];
+   t_exciter *x=(t_exciter *)z;
+
+   sprintf(buf, "pdtk_exciter_dialog %%s %d %d %d %.2f %d %d\n",
+            x->x_width, x->x_height, x->x_nbevents, x->x_timegrain, x->x_loop, x->x_save );
+   // post("exciter_properties : %s", buf );
+   gfxstub_new(&x->x_obj.ob_pd, x, buf);
+}
+
+static void exciter_select(t_gobj *z, t_glist *glist, int selected)
+{
+   t_exciter *x = (t_exciter *)z;
+
+   x->x_selected = selected;
+   exciter_draw_select( x, glist );
+}
+
+static void exciter_vis(t_gobj *z, t_glist *glist, int vis)
+{
+  t_exciter *x = (t_exciter *)z;
+
+   post("exciter_vis : %d", vis );
+   if (vis)
+   {
+      exciter_draw_new( x, glist );
+      exciter_draw_update( x, glist );
+   }
+   else
+   {
+      exciter_draw_erase( x, glist );
+   }
+}
+
+ /* resuming the triggering of events */
+static void exciter_resume(t_exciter *x)
+{
+   x->x_started = 1;
+}
+
+ /* pausing the triggering of events */
+static void exciter_pause(t_exciter *x)
+{
+   x->x_started = 0;
+}
+
+ /* trigger events -- no dsp processing */
+static void exciter_dialog(t_exciter *x, t_symbol *s, int argc, t_atom *argv)
+{
+ t_int onbevents, owidth, ei, gi, bi;
+ t_canvas *canvas=glist_getcanvas(x->x_glist);
+
+   if ( !x ) {
+     post( "exciter : error :tried to set properties on an unexisting object" );
+   }
+   onbevents = x->x_nbevents;
+   owidth = x->x_width;
+   exciter_draw_erase(x, x->x_glist);
+   if ( argc < 6 )
+   {
+      post( "exciter : error in the number of arguments ( %d )", argc );
+      return;
+   }
+   if ( argv[0].a_type != A_FLOAT || argv[1].a_type != A_FLOAT ||
+        argv[2].a_type != A_FLOAT || argv[3].a_type != A_FLOAT ||
+        argv[4].a_type != A_FLOAT || argv[5].a_type != A_FLOAT )
+   {
+      post( "exciter : wrong arguments" );
+      return;
+   }
+
+   exciter_pause( x );
+   x->x_width = argv[0].a_w.w_float;
+   if ( x->x_width <= 0 ) x->x_width = 100;
+   x->x_height = argv[1].a_w.w_float;
+   if ( x->x_height <= 0 ) x->x_height = 100;
+   x->x_nbevents = argv[2].a_w.w_float;
+   if ( x->x_nbevents < 1 ) x->x_nbevents = 1;
+   x->x_timegrain = argv[3].a_w.w_float;
+   if ( x->x_timegrain < 0.01 ) 
+   {
+      post ("exciter : incorrect time grain : forced to 1 tick ( 10 ms )" );
+      x->x_timegrain = 0.01;
+   }
+   x->x_loop = argv[4].a_w.w_float;
+   x->x_save = argv[5].a_w.w_float;
+   x->x_started = 0;	
+   x->x_reltime = 0L;	
+   x->x_plooptime = 0L;	
+   x->x_gindex = -1;	
+   x->x_looplength = x->x_timegrain * x->x_width * 1000 / EXCITER_PIXEL_GRAIN;
+
+   // re-allocate arrays and keep old events
+   post( "exciter : re-allocate events" );
+   if ( onbevents != x->x_nbevents || owidth != x->x_width )
+   {
+      t_int mevents = ( onbevents > x->x_nbevents ) ? x->x_nbevents : onbevents;
+      t_int mwidth = ( owidth > x->x_width ) ? x->x_width : owidth;
+      t_int *newbangs;
+
+        newbangs = (t_int*) getbytes( x->x_nbevents*x->x_width/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+        memset( newbangs, 0x0, x->x_nbevents*x->x_width/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+        for ( ei=0; ei<mevents; ei++ )
+        {
+          for ( gi=0; gi<(mwidth/EXCITER_PIXEL_GRAIN); gi++ )
+          {
+            *(newbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) =
+                 *(x->x_sbangs+ei*(owidth/EXCITER_PIXEL_GRAIN)+gi );
+          }
+        }
+        if ( x->x_sbangs )
+           freebytes( x->x_sbangs, onbevents*owidth/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+        x->x_sbangs = newbangs;
+   }
+
+   // re-allocate outlets
+   post( "exciter : re-allocate outlets" );
+   if ( onbevents != x->x_nbevents )
+   {
+     post( "exciter : cleaning up old outlets" );
+     if ( x->x_bangs )
+     {
+        for ( ei=0; ei<onbevents; ei++ )
+        {
+          outlet_free( x->x_bangs[ei] );
+        }
+        freebytes( x->x_bangs, onbevents*sizeof(t_outlet*) );
+     }
+     post( "exciter : creating new ones" );
+     x->x_bangs = (t_outlet **) getbytes( x->x_nbevents*sizeof(t_outlet **) );
+     for ( bi=0; bi<x->x_nbevents; bi++ )
+     {
+       x->x_bangs[bi] = outlet_new( &x->x_obj, &s_bang ); 
+     }
+   }
+   canvas_fixlinesfor( canvas, (t_text*)x );
+   exciter_draw_new(x, x->x_glist);
+   exciter_draw_update(x, x->x_glist);
+   exciter_resume( x );
+}
+
+static void exciter_delete(t_gobj *z, t_glist *glist)
+{
+    canvas_deletelinesfor(glist, (t_text *)z);
+}
+
+static void exciter_displace(t_gobj *z, t_glist *glist, int dx, int dy)
+{
+  t_exciter *x = (t_exciter *)z;
+  t_int xold = text_xpix(&x->x_obj, glist);
+  t_int yold = text_ypix(&x->x_obj, glist);
+
+    // post( "exciter_displace dx=%d dy=%d", dx, dy );
+
+    x->x_obj.te_xpix += dx;
+    x->x_obj.te_ypix += dy;
+    if(xold != text_xpix(&x->x_obj, glist) || yold != text_ypix(&x->x_obj, glist))
+    {
+	exciter_draw_move(x, glist);
+    }
+}
+
+static int exciter_click(t_gobj *z, struct _glist *glist,
+			    int xpix, int ypix, int shift, int alt, int dbl, int doit)
+{
+  t_exciter* x = (t_exciter *)z;
+  t_int nevent, npix;
+
+    if ( doit) 
+    {
+      nevent = ( 1 - ( ( ypix - ( (float)x->x_height / (float) x->x_nbevents / 2 ) 
+                   - text_ypix(&x->x_obj, glist)) / (float)x->x_height ) )*(x->x_nbevents-1);
+      npix = ( xpix - 1  - text_xpix(&x->x_obj, glist)) / EXCITER_PIXEL_GRAIN;
+      // post( "exciter : selected event (%d,%d)", nevent, npix );
+      // set or unset event
+      {
+         if ( *(x->x_sbangs+nevent*(x->x_width/EXCITER_PIXEL_GRAIN)+npix ) == 1 )
+         {
+            *(x->x_sbangs+nevent*(x->x_width/EXCITER_PIXEL_GRAIN)+npix ) = 0;
+            exciter_delete_gem( x, glist, npix, nevent );
+         }
+         else
+         {
+            *(x->x_sbangs+nevent*(x->x_width/EXCITER_PIXEL_GRAIN)+npix ) = 1;
+            exciter_draw_gem( x, glist, npix, nevent );
+         }
+      }
+    }
+    return (1);
+}
+
+static t_exciter *exciter_new(t_symbol *s, int argc, t_atom *argv)
+{
+  int bi, i, ei, gi;
+  t_exciter *x;
+  t_pd *x2;
+ 
+    // post( "exciter_new : create : %s argc =%d", s->s_name, argc );
+
+    x = (t_exciter *)pd_new(exciter_class);
+    x->x_glist = (t_glist *) canvas_getcurrent();
+    // new exciter created from the gui 
+    if ( argc != 0 )
+    {
+      if ( argc < 6 )
+      {
+        post( "exciter : error in the number of arguments ( %d )", argc );
+        return NULL;
+      }
+      if ( argv[0].a_type != A_FLOAT || argv[1].a_type != A_FLOAT ||
+           argv[2].a_type != A_FLOAT || argv[3].a_type != A_FLOAT ||
+           argv[4].a_type != A_FLOAT || argv[5].a_type != A_FLOAT )
+      {
+        post( "exciter : wrong arguments" );
+        return NULL;
+      }
+
+      x->x_width = argv[0].a_w.w_float;
+      x->x_height = argv[1].a_w.w_float;
+      x->x_nbevents = argv[2].a_w.w_float;
+      if ( x->x_nbevents < 1 ) x->x_nbevents = 1;
+      x->x_timegrain = argv[3].a_w.w_float;
+      x->x_loop = argv[4].a_w.w_float;
+      x->x_save = argv[5].a_w.w_float;
+    }
+    else
+    {
+      x->x_width = DEFAULT_EXCITER_WIDTH;
+      x->x_height = DEFAULT_EXCITER_HEIGHT;
+      x->x_nbevents = DEFAULT_EXCITER_NBEVENTS;
+      x->x_timegrain = DEFAULT_EXCITER_GRAIN;
+      x->x_loop = 1;
+      x->x_save = 1;
+
+    }
+
+    // common fields for new and restored exciters
+    x->x_sbangs = (t_int*) getbytes( x->x_nbevents*x->x_width/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+    for ( ei=0; ei<x->x_nbevents; ei++ )
+    {
+      for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+      {
+        *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi) = 0;
+      }
+    }
+    memset( x->x_sbangs, 0x0, x->x_nbevents*x->x_width/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+    x->x_selected = 0;	
+    x->x_started = 0;	
+    x->x_reltime = 0L;	
+    x->x_plooptime = 0L;	
+    x->x_gindex = -1;	
+    x->x_looplength = x->x_timegrain * x->x_width * 1000 / EXCITER_PIXEL_GRAIN;
+
+    x->x_bangs = (t_outlet **) getbytes( x->x_nbevents*sizeof(t_outlet **) );
+    for ( bi=0; bi<x->x_nbevents; bi++ )
+    {
+       x->x_bangs[bi] = outlet_new( &x->x_obj, &s_bang ); 
+    }
+
+    // post( "exciter : argc : %d", argc );
+    if ( ( argc != 0 ) && ( x->x_save ) )
+    {
+       int ai = 6;
+       int si = 0;
+
+       while ( ai < argc - 1 )
+       {
+           *(x->x_sbangs
+               +((int)argv[ai].a_w.w_float)*(x->x_width/EXCITER_PIXEL_GRAIN)
+                     +(int)argv[ai+1].a_w.w_float) = 1;
+           ai += 2;
+       }
+    }
+    post( "exciter_new width: %d height : %d", x->x_width, x->x_height );
+
+    return (x);
+}
+
+static void exciter_dump(t_exciter *x)
+{
+  t_int ei, gi;
+
+   for ( ei=0; ei<x->x_nbevents; ei++ )
+   {
+     for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+     {
+        if ( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) != 0 )
+        {
+           post( "exciter : value ( %d, %d ) : %d", ei, gi, 
+                      *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) );
+        }
+     }
+   }
+}
+
+ /* clearing all events */
+static void exciter_clear(t_exciter *x)
+{
+  t_int ei, gi;
+
+   for ( ei=0; ei<x->x_nbevents; ei++ )
+   {
+     for ( gi=0; gi<(x->x_width/EXCITER_PIXEL_GRAIN); gi++ )
+     {
+        *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) = 0;
+     }
+   }
+   exciter_draw_update( x, x->x_glist );
+}
+
+
+ /* starting the triggering of events */
+static void exciter_start(t_exciter *x)
+{
+   x->x_started = 1;
+   x->x_reltime = 0L;
+   x->x_plooptime = 0L;
+   x->x_gindex = -1;	
+}
+
+ /* stop the triggering of events */
+static void exciter_stop(t_exciter *x)
+{
+   x->x_started = 0;
+}
+
+ /* reset the triggering of events */
+static void exciter_reset(t_exciter *x)
+{
+   x->x_reltime = 0L;
+   x->x_plooptime = 0L;
+   x->x_gindex = -1;	
+}
+
+static t_int *exciter_perform(t_int *w)
+{
+  t_int ei, gi;
+  t_int gstart, gend;
+  t_exciter* x = (t_exciter*)(w[1]);
+  struct timeval tv;
+  struct timezone tz;
+  long long looptime = 0L; 
+  double preltime = x->x_reltime;
+  t_canvas *canvas=glist_getcanvas(x->x_glist);
+
+    if ( x->x_started )
+    {
+       // get current time in ms
+       gettimeofday( &tv, &tz );
+       looptime = tv.tv_sec*1000 + tv.tv_usec/1000;
+       if ( x->x_plooptime == 0L )
+       {
+          x->x_plooptime = looptime;
+       }
+       x->x_reltime += ( looptime - x->x_plooptime );
+       if ( x->x_reltime > x->x_looplength )
+       {
+          if ( x->x_loop )
+          {
+             // post( "exciter : restarting loop" );
+             x->x_reltime = 0;
+             preltime = 0;
+             x->x_gindex = -1;
+          }
+          else
+          {
+             // post( "exciter : end of the loop" );
+             x->x_reltime = 0;
+             x->x_started = 0;
+          }
+       }
+       gstart = preltime/(x->x_timegrain*1000);
+       gend = x->x_reltime/(x->x_timegrain*1000);
+
+       // prevent overflow due to long long precision
+       if ( gstart > x->x_width/EXCITER_PIXEL_GRAIN-1 ) gstart = x->x_width/EXCITER_PIXEL_GRAIN-1;
+       if ( gstart < 0 ) gstart = 0;
+       if ( gend > x->x_width/EXCITER_PIXEL_GRAIN-1 ) gend = x->x_width/EXCITER_PIXEL_GRAIN-1 ;
+       if ( gend < 0 ) gend = 0;
+       if ( gstart > x->x_gindex )  
+       {
+         // post( "exciter : focus slice : (%d,%d)", gstart, gend );
+         for ( gi=x->x_gindex+1; gi<=gend; gi++ )
+         {
+           for ( ei=0; ei<x->x_nbevents; ei++ )
+           {
+             if ( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) == 1 )
+             {
+                outlet_bang( x->x_bangs[ ei ] );
+	        SYS_VGUI5(".x%x.c itemconfigure %xEVENT%.4d%.4d -fill #00FF00\n", 
+                          canvas, x, gi, ei);
+             }
+           }
+         }
+         // unfocus previous events
+         if ( gstart >= x->x_width/EXCITER_PIXEL_GRAIN - 1) 
+                gstart = x->x_width/EXCITER_PIXEL_GRAIN; // not too proud of this one
+         // post( "exciter : unfocus slice : (%d,%d)", x->x_gindex, gstart-1 );
+         for ( gi=x->x_gindex; gi<gstart; gi++ )
+         {
+           for ( ei=0; ei<x->x_nbevents; ei++ )
+           {
+             if ( *(x->x_sbangs+ei*(x->x_width/EXCITER_PIXEL_GRAIN)+gi ) == 1 )
+             {
+	        SYS_VGUI5(".x%x.c itemconfigure %xEVENT%.4d%.4d -fill #FFFFFF\n", 
+                          canvas, x, gi, ei);
+             }
+           }
+         }
+         x->x_gindex = gend;
+       }
+    }
+ 
+    x->x_plooptime = looptime;
+    return (w+2);
+}
+
+static void exciter_dsp(t_exciter *x, t_signal **sp)
+{
+    dsp_add(exciter_perform, 1, x);
+}
+
+static void exciter_free(t_exciter *x)
+{
+  t_int ei;
+
+   // post( "exciter~: exciter_free" );
+   if ( x->x_bangs )
+   {
+      for ( ei=0; ei<x->x_nbevents; ei++ )
+      {
+         outlet_free( x->x_bangs[ei] );
+      }
+      freebytes( x->x_bangs, x->x_nbevents*sizeof(t_outlet*) );
+   }
+   if ( x->x_sbangs )
+   {
+      freebytes( x->x_sbangs, x->x_nbevents*x->x_width/EXCITER_PIXEL_GRAIN*sizeof(t_int) );
+   }
+}
+
+void exciter_setup(void)
+{
+    post( exciter_version );
+    exciter_class = class_new(gensym("exciter"), (t_newmethod)exciter_new,
+			      (t_method)exciter_free, sizeof(t_exciter), 0, A_GIMME, 0);
+    class_addmethod(exciter_class, (t_method)exciter_dialog, gensym("dialog"), A_GIMME, 0);
+    class_addmethod(exciter_class, (t_method)exciter_dump, gensym("dump"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_clear, gensym("clear"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_start, gensym("start"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_stop, gensym("stop"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_reset, gensym("reset"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_pause, gensym("pause"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_resume, gensym("resume"), 0);
+    class_addmethod(exciter_class, (t_method)exciter_dsp, gensym("dsp"), A_NULL);
+    exciter_widgetbehavior.w_getrectfn =    exciter_getrect;
+    exciter_widgetbehavior.w_displacefn =   exciter_displace;
+    exciter_widgetbehavior.w_selectfn =     exciter_select;
+    exciter_widgetbehavior.w_activatefn =   NULL;
+    exciter_widgetbehavior.w_deletefn =     exciter_delete;
+    exciter_widgetbehavior.w_visfn =        exciter_vis;
+    exciter_widgetbehavior.w_clickfn =      exciter_click;
+
+#if PD_MINOR_VERSION >= 37
+    class_setpropertiesfn(exciter_class, exciter_properties);
+    class_setsavefn(exciter_class, exciter_save);
+#else
+    exciter_widgetbehavior.w_propertiesfn = exciter_properties;
+    exciter_widgetbehavior.w_savefn =       exciter_save;
+#endif
+
+    class_setwidget(exciter_class, &exciter_widgetbehavior);
+
+    sys_vgui("eval [read [open %s/%s.tcl]]\n",
+             exciter_class->c_externdir->s_name, exciter_class->c_name->s_name);
+}