X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=sympathy.git;a=blobdiff_plain;f=src%2Fansi.c;h=7ec9abd160dd9e83cda8ef3fce2003567baadbe6;hp=4e951bba3c5a91081c2f34e5b831c0d133170b9c;hb=ca18756e89e072fa067751f421a4f9879596e70b;hpb=8095a5479e25be2d5948eadc59c49e92f0ab948f

diff --git a/src/ansi.c b/src/ansi.c
index 4e951bb..7ec9abd 100644
--- a/src/ansi.c
+++ b/src/ansi.c
@@ -10,6 +10,45 @@ static char rcsid[] = "$Id$";
 
 /*
  * $Log$
+ * Revision 1.20  2008/02/14 01:55:57  james
+ * *** empty log message ***
+ *
+ * Revision 1.19  2008/02/13 16:57:29  james
+ * *** empty log message ***
+ *
+ * Revision 1.18  2008/02/13 09:12:21  james
+ * *** empty log message ***
+ *
+ * Revision 1.17  2008/02/13 01:08:18  james
+ * *** empty log message ***
+ *
+ * Revision 1.16  2008/02/07 13:22:51  james
+ * *** empty log message ***
+ *
+ * Revision 1.15  2008/02/07 13:19:48  james
+ * *** empty log message ***
+ *
+ * Revision 1.14  2008/02/07 12:21:16  james
+ * *** empty log message ***
+ *
+ * Revision 1.13  2008/02/07 12:16:04  james
+ * *** empty log message ***
+ *
+ * Revision 1.12  2008/02/07 11:32:41  james
+ * *** empty log message ***
+ *
+ * Revision 1.11  2008/02/07 11:11:14  staffcvs
+ * *** empty log message ***
+ *
+ * Revision 1.10  2008/02/07 01:02:52  james
+ * *** empty log message ***
+ *
+ * Revision 1.9  2008/02/07 00:43:27  james
+ * *** empty log message ***
+ *
+ * Revision 1.8  2008/02/07 00:39:13  james
+ * *** empty log message ***
+ *
  * Revision 1.7  2008/02/06 20:26:57  james
  * *** empty log message ***
  *
@@ -34,29 +73,6 @@ static char rcsid[] = "$Id$";
  */
 #include "project.h"
 
-void
-ansi_write (ANSI * a, char *buf, int n)
-{
-  write (a->fd, buf, n);
-}
-
-void
-ansi_getsize (ANSI * a)
-{
-  struct winsize sz = { 0 };
-  if (ioctl (a->fd, TIOCGWINSZ, &sz))
-    {
-      a->size.x = CRT_COLS;
-      a->size.y = CRT_ROWS;
-    }
-  else
-    {
-      a->size.x = sz.ws_col;
-      a->size.y = sz.ws_row;
-    }
-
-}
-
 
 void
 ansi_move (ANSI * a, CRT_Pos p)
@@ -78,70 +94,70 @@ ansi_move (ANSI * a, CRT_Pos p)
         {
           if (dx == 1)
             {
-              ansi_write (a, "\033[C", 3);
+              a->terminal->xmit (a->terminal, "\033[C", 3);
             }
           else if (dx == -1)
             {
-              ansi_write (a, "\033[D", 3);
+              a->terminal->xmit (a->terminal, "\033[D", 3);
             }
           else
             {
               n = snprintf (buf, sizeof (buf), "\033[%dG", p.x + 1);
-              ansi_write (a, buf, n);
+              a->terminal->xmit (a->terminal, buf, n);
             }
         }
       else if (!dx)
         {
           if (dy == -1)
             {
-              ansi_write (a, "\033[A", 3);
+              a->terminal->xmit (a->terminal, "\033[A", 3);
             }
           else if (dy == 1)
             {
-              ansi_write (a, "\033[B", 3);
+              a->terminal->xmit (a->terminal, "\033[B", 3);
             }
           else if (dy < 0)
             {
               n = snprintf (buf, sizeof (buf), "\033[%dA", -dy);
-              ansi_write (a, buf, n);
+              a->terminal->xmit (a->terminal, buf, n);
             }
           else
             {
               n = snprintf (buf, sizeof (buf), "\033[%dB", dy);
-              ansi_write (a, buf, n);
+              a->terminal->xmit (a->terminal, buf, n);
             }
         }
       else if (!p.x)
         {
           if (dy == 1)
             {
-              ansi_write (a, "\033[E", 3);
+              a->terminal->xmit (a->terminal, "\033[E", 3);
             }
           else if (dy == -1)
             {
-              ansi_write (a, "\033[F", 3);
+              a->terminal->xmit (a->terminal, "\033[F", 3);
             }
           else if (dy > 0)
             {
               n = snprintf (buf, sizeof (buf), "\033[%dE", dy);
-              ansi_write (a, buf, n);
+              a->terminal->xmit (a->terminal, buf, n);
             }
           else
             {
               n = snprintf (buf, sizeof (buf), "\033[%dF", -dy);
-              ansi_write (a, buf, n);
+              a->terminal->xmit (a->terminal, buf, n);
             }
         }
       else
         {
           n = snprintf (buf, sizeof (buf), "\033[%d;%dH", p.y + 1, p.x + 1);
-          ansi_write (a, buf, n);
+          a->terminal->xmit (a->terminal, buf, n);
         }
     }
   else
     {
       n = snprintf (buf, sizeof (buf), "\033[%d;%dH", p.y + 1, p.x + 1);
-      ansi_write (a, buf, n);
+      a->terminal->xmit (a->terminal, buf, n);
     }
 
   a->pos = p;
@@ -156,11 +172,11 @@ ansi_showhide_cursor (ANSI * a, int hide)
 
   if (hide)
     {
-      ansi_write (a, "\033[?25l", 6);
+      a->terminal->xmit (a->terminal, "\033[?25l", 6);
     }
   else
     {
-      ansi_write (a, "\033[?25h", 6);
+      a->terminal->xmit (a->terminal, "\033[?25h", 6);
     }
 
   a->hide_cursor = hide;
@@ -170,8 +186,50 @@ ansi_showhide_cursor (ANSI * a, int hide)
 void
 ansi_force_attr_normal (ANSI * a)
 {
-  ansi_write (a, "\033[0m", 4);
+  a->terminal->xmit (a->terminal, "\033[0m", 4);
   a->attr = CRT_ATTR_NORMAL;
+  a->color = ANSI_INVAL;
+}
+
+void
+ansi_set_color (ANSI * a, int color)
+{
+  int dif;
+  char buf[16];
+  int i;
+  int fg, bg;
+
+  if ((a->color == ANSI_INVAL) || (color != a->color))
+    {
+      fg = CRT_COLOR_FG (color);
+      bg = CRT_COLOR_BG (color);
+
+      if (fg & CRT_COLOR_INTENSITY)
+        {
+          fg += 90;
+        }
+      else
+        {
+          fg += 30;
+        }
+
+      if (bg & CRT_COLOR_INTENSITY)
+        {
+          bg += 100;
+        }
+      else
+        {
+          bg += 40;
+        }
+
+      i = sprintf (buf, "\033[%d;%dm", fg, bg);
+#if 0
+      fprintf (stderr, "Color set to %d %d %x\n", fg, bg, color);
+#endif
+
+      a->terminal->xmit (a->terminal, buf, i);
+      a->color = color;
+    }
 }
 
 void
@@ -186,44 +244,46 @@ ansi_set_attr (ANSI * a, int attr)
 
   a->attr = attr;
 
+#if 0
   if (attr == CRT_ATTR_NORMAL)
     {
       ansi_force_attr_normal (a);
       return;
     }
+#endif
 
   if (dif & CRT_ATTR_UNDERLINE)
     {
       if (attr & CRT_ATTR_UNDERLINE)
         {
-          ansi_write (a, "\033[4m", 4);
+          a->terminal->xmit (a->terminal, "\033[4m", 4);
         }
       else
         {
-          ansi_write (a, "\033[24m", 5);
+          a->terminal->xmit (a->terminal, "\033[24m", 5);
         }
     }
   if (dif & CRT_ATTR_REVERSE)
     {
       if (attr & CRT_ATTR_REVERSE)
         {
-          ansi_write (a, "\033[7m", 4);
+          a->terminal->xmit (a->terminal, "\033[7m", 4);
         }
       else
         {
-          ansi_write (a, "\033[27m", 5);
+          a->terminal->xmit (a->terminal, "\033[27m", 5);
         }
     }
   if (dif & CRT_ATTR_BOLD)
     {
       if (attr & CRT_ATTR_BOLD)
         {
-          ansi_write (a, "\033[1m", 4);
+          a->terminal->xmit (a->terminal, "\033[1m", 4);
         }
       else
         {
-          ansi_write (a, "\033[21m", 5);
-          ansi_write (a, "\033[22m", 5);
+          a->terminal->xmit (a->terminal, "\033[21m", 5);
+          a->terminal->xmit (a->terminal, "\033[22m", 5);
         }
     }
 
@@ -241,15 +301,16 @@ ansi_render (ANSI * a, CRT_CA ca)
     ca.chr = ' ';
 
   ansi_set_attr (a, ca.attr);
+  ansi_set_color (a, ca.color);
 
-  ansi_write (a, &ca.chr, 1);
+  a->terminal->xmit (a->terminal, &ca.chr, 1);
 
   a->pos.x++;
 
 /*Can't easily wrap round here as don't know size of destination screen*/
 /*so invalidate the cached cursor position*/
 
-  if (a->pos.x >= CRT_COLS)
+  if (a->pos.x >= a->size.x)
     a->pos.x = ANSI_INVAL;
 
 }
@@ -261,13 +322,228 @@ ansi_cls (ANSI * a)
 
   crt_cls (&a->crt);
 
-  ansi_force_attr_normal (a);
+  ansi_set_attr (a, CRT_ATTR_NORMAL);
+  ansi_set_color (a, CRT_COLOR_NORMAL);
   ansi_move (a, p);
-  ansi_write (a, "\033[2J", 4);
+  a->terminal->xmit (a->terminal, "\033[2J", 4);
 /*different emulators leave cursor in different places after cls differently*/
   a->pos.x = ANSI_INVAL;
 }
 
+#if 0
+int
+ansi_scroll_up (ANSI * a, CRT_Pos s, CRT_Pos e)
+{
+  char buf[16];
+  int i;
+  if (s.x)
+    return -1;
+  if (e.x != (CRT_COLS - 1))
+    return -1;
+  if (s.y)
+    return -1;
+  if (s.y >= a->size.y)
+    return -1;
+
+  ansi_showhide_cursor (a, 1);
+  i = sprintf (buf, "\033[%d;%dr", s.y + 1, e.y + 1);
+  a->terminal->xmit (a->terminal, buf, i);
+  i = sprintf (buf, "\033[%d;%dH", e.y + 1, 0);
+  a->terminal->xmit (a->terminal, buf, i);
+  a->terminal->xmit (a->terminal, "\033D", 2);
+  a->terminal->xmit (a->terminal, "\033[r", 3);
+
+  s.y = e.y;
+  crt_erase (&a->crt, s, e, 1);
+
+  a->pos.x = ANSI_INVAL;
+
+  return 0;
+}
+
+
+void
+ansi_spot_scroll_up (ANSI * a, CRT * c)
+{
+  int l, n, p;
+
+  l = c->sh.e.x - c->sh.s.x;
+  l++;
+  l *= sizeof (CRT_CA);
+
+  n = c->sh.e.y - c->sh.s.y;
+  p = CRT_ADDR_POS (&c->sh.s);
+
+  while (n--)
+    {
+      if (memcmp (&c->screen[p], &a->crt.screen[p + CRT_COLS], l))
+        return;
+      p += CRT_COLS;
+    }
+
+  if (ansi_scroll_up (a, c->sh.s, c->sh.e))
+    return;
+
+  n = c->sh.e.y - c->sh.s.y;
+  p = CRT_ADDR_POS (&c->sh.s);
+
+  while (n--)
+    {
+      memcpy (&a->crt.screen[p], &a->crt.screen[p + CRT_COLS], l);
+      p += CRT_COLS;
+    }
+
+  c->sh.dir = 0;                //FIXME: horrid hack
+
+}
+
+void
+ansi_spot_scroll (ANSI * a, CRT * c)
+{
+
+  switch (c->sh.dir)
+    {
+    case -1:
+/*we only care about up for the moment */
+      ansi_spot_scroll_up (a, c);
+      break;
+    }
+
+  return;
+}
+
+#endif
+
+
+void
+ansi_draw_line (ANSI * a, CRT_CA * cap, int y)
+{
+  CRT_Pos p = { 0, y };
+  CRT_CA *acap = &a->crt.screen[CRT_ADDR_POS (&p)];
+
+  for (p.x = 0; p.x < CRT_COLS; ++p.x)
+    {
+      if (p.x >= a->size.x)
+        continue;
+
+      if (crt_ca_cmp (*acap, *cap))
+        {
+          ansi_showhide_cursor (a, 1);
+          *acap = *cap;
+
+          ansi_move (a, p);
+          ansi_render (a, *acap);
+        }
+
+      acap++;
+      cap++;
+    }
+}
+
+void
+ansi_resize_check (ANSI * a)
+{
+
+  if (!crt_pos_cmp (a->terminal->size, a->size))
+    return;
+
+  terminal_getsize (a->terminal);
+
+  a->size = a->terminal->size;
+
+  a->pos.x = ANSI_INVAL;
+  a->hide_cursor = ANSI_INVAL;
+
+  crt_reset (&a->crt);
+
+// FIXME: -- echos back crap?
+//  a->terminal->xmit (a->terminal, "\033[c", 3);
+
+  ansi_cls (a);
+  a->terminal->xmit (a->terminal, "\033=", 2);
+  a->terminal->xmit (a->terminal, "\033[?6l", 5);
+  a->terminal->xmit (a->terminal, "\033[r", 3);
+
+}
+
+#define HISTORY_GUESS_SCROLL 24 /*guess all 24 lines usually scroll */
+/*if they haven't then ansi_draw will patch it up*/
+
+void
+ansi_history (ANSI * a, History * h)
+{
+  char buf[32];
+  int i;
+/*Do we need to catch up on history?*/
+
+  if (a->history_ptr == h->wptr)
+    return;
+  ansi_resize_check (a);
+
+  if ((a->size.x < CRT_COLS) || (a->size.y < CRT_ROWS))
+    return;
+
+  ansi_force_attr_normal (a);
+  ansi_set_color (a, CRT_COLOR_NORMAL);
+
+  i = sprintf (buf, "\033[%d;%dr", 1, HISTORY_GUESS_SCROLL);
+  a->terminal->xmit (a->terminal, buf, i);
+
+
+  while (a->history_ptr != h->wptr)
+    {
+
+      History_ent *e = &h->lines[a->history_ptr];
+
+      HISTORY_INC (h, a->history_ptr);
+
+      if (!e->valid)
+        continue;
+
+      /*If so write the line ot the top of the screen */
+      ansi_draw_line (a, e->line, 0);
+
+
+      /*Roll HISTORY_GUESS_SCROLL lines up putting the top line into the xterm's history */
+
+
+      ansi_showhide_cursor (a, 1);
+      i = sprintf (buf, "\033[%d;%dH", HISTORY_GUESS_SCROLL, 1);
+      a->terminal->xmit (a->terminal, buf, i);
+      a->terminal->xmit (a->terminal, "\033D", 2);
+      a->pos.x = ANSI_INVAL;
+
+      /*now do the same in our image of the screen */
+
+      {
+        CRT_Pos s = { 0 }
+        , e =
+        {
+        0};
+
+        /*scroll lines up */
+        for (s.y++; s.y < HISTORY_GUESS_SCROLL; s.y++, e.y++)
+          {
+            memcpy (&a->crt.screen[CRT_ADDR_POS (&e)],
+                    &a->crt.screen[CRT_ADDR_POS (&s)],
+                    sizeof (CRT_CA) * CRT_COLS);
+          }
+
+        /* erase new line */
+        s.y = e.y;
+        e.x = CRT_COLS - 1;
+        crt_erase (&a->crt, s, e, 1);
+      }
+
+    }
+/*reset margins*/
+  a->terminal->xmit (a->terminal, "\033[r", 3);
+  a->pos.x = ANSI_INVAL;
+
+}
+
+
+
 
 void
 ansi_draw (ANSI * a, CRT * c)
@@ -276,38 +552,37 @@ ansi_draw (ANSI * a, CRT * c)
   int o;
   int hidden_cursor = 0;
 
+  ansi_resize_check (a);
+
+
+
   for (p.y = 0; p.y < CRT_ROWS; ++p.y)
     {
       if (p.y >= a->size.y)
         continue;
-      o = CRT_ADDR (p.y, 0);
-      for (p.x = 0; p.x < CRT_COLS; ++p.x, ++o)
-        {
-          if (p.x >= a->size.x)
-            continue;
-          if (crt_ca_cmp (a->crt.screen[o], c->screen[o]))
-            {
-              ansi_showhide_cursor (a, 1);
-              a->crt.screen[o] = c->screen[o];
 
-              ansi_move (a, p);
-              ansi_render (a, a->crt.screen[o]);
-            }
-        }
+      ansi_draw_line (a, &c->screen[CRT_ADDR (p.y, 0)], p.y);
+
     }
 
 
   if ((CRT_COLS > a->size.x) || (CRT_ROWS > a->size.y))
     {
-      char msg[] = "Window is too small";
+      char msg[1024];           // = "Window is too small";
+      int i;
       p.x = 0;
       p.y = 0;
 
+      i =
+        sprintf (msg, "Window too small (%dx%d need %dx%d)", a->size.x,
+                 a->size.y, CRT_COLS, CRT_ROWS);
+
       ansi_showhide_cursor (a, 1);
       ansi_set_attr (a, CRT_ATTR_REVERSE);
+      ansi_set_color (a, CRT_MAKE_COLOR (CRT_COLOR_WHITE, CRT_COLOR_RED));
       ansi_move (a, p);
 
-      ansi_write (a, msg, sizeof (msg));
+      a->terminal->xmit (a->terminal, msg, i);
       a->pos.x = ANSI_INVAL;
     }
 
@@ -326,43 +601,245 @@ ansi_draw (ANSI * a, CRT * c)
 }
 
 void
-ansi_reset (ANSI * a)
+ansi_reset (ANSI * a, CRT * c)
 {
-// FIXME: -- echos back crap?
-//  ansi_write (a, "\033[c", 3);
-  ansi_getsize (a);
+  a->size.x = -1;
+  ansi_draw (a, c ? c : &a->crt);
+}
 
-  a->pos.x = ANSI_INVAL;
-  a->hide_cursor = ANSI_INVAL;
+void
+ansi_terminal_reset (ANSI * a)
+{
+  CRT_Pos p = { 0, CRT_ROWS };
+  ansi_force_attr_normal (a);
 
-  crt_reset (&a->crt);
+  ansi_move (a, p);
+}
+
+void
+ansi_flush_escape (ANSI * a, Context * c)
+{
+  ANSI_Parser *p = &a->parser;
+  int i;
+
+  for (i = 0; i < p->escape_ptr; ++i)
+    {
+      term_send (c, p->escape_buf[i]);
+    }
+
+  p->escape_ptr = 0;
+  p->in_escape = 0;
+}
+
+void
+ansi_parse_deckey (ANSI * a, Context * c)
+{
+  ANSI_Parser *p = &a->parser;
+  if ((p->escape_buf[1] != '[') && (p->escape_buf[1] != 'O'))
+    {
+      ansi_flush_escape (a, c);
+      return;
+    }
+
+  if ((p->escape_buf[2] >= 'A') || (p->escape_buf[2] <= 'Z'))
+    {
+      term_send (c, KEY_UP + (p->escape_buf[2] - 'A'));
+    }
+  else if ((p->escape_buf[2] >= 'a') || (p->escape_buf[2] <= 'z'))
+    {
+      term_send (c, KEY_154 + (p->escape_buf[2] - 'a'));
+    }
+  else
+    {
+      ansi_flush_escape (a, c);
+      return;
+    }
+  p->in_escape = 0;
+  p->escape_ptr = 0;
+}
+
+void
+ansi_parse_ansikey (ANSI * a, Context * c)
+{
+  ANSI_Parser *p = &a->parser;
+
+  if ((p->escape_buf[1] != '[') || (p->escape_buf[3] != '~'))
+    {
+      ansi_flush_escape (a, c);
+      return;
+    }
+  if ((p->escape_buf[2] >= '0') || (p->escape_buf[2] <= '9'))
+    {
+      term_send (c, KEY_180 + (p->escape_buf[2] - '0'));
+    }
+  else
+    {
+      ansi_flush_escape (a, c);
+      return;
+    }
+
+  p->in_escape = 0;
+  p->escape_ptr = 0;
+}
+
+
+
+void
+ansi_parse_escape (ANSI * a, Context * c)
+{
+  ANSI_Parser *p = &a->parser;
+  switch (p->escape_ptr)
+    {
+    case 0:
+    case 1:
+      return;
+    case 2:
+      switch (p->escape_buf[1])
+        {
+        case '[':
+        case 'O':
+          break;
+        default:
+          ansi_flush_escape (a, c);
+        }
+      break;
+    case 3:
+      switch (p->escape_buf[1])
+        {
+        case 'O':
+          ansi_parse_deckey (a, c);
+          break;
+        case '[':
+          if ((p->escape_buf[2] >= 'A') && (p->escape_buf[2] <= 'Z'))
+            ansi_parse_deckey (a, c);
+          break;
+        default:
+          ansi_flush_escape (a, c);
+        }
+      break;
+    case 4:
+      switch (p->escape_buf[1])
+        {
+        case '[':
+          ansi_parse_ansikey (a, c);
+          break;
+        default:
+          ansi_flush_escape (a, c);
+        }
+      break;
+    case 5:
+      ansi_flush_escape (a, c);
+    }
+}
+
+
+void
+ansi_check_escape (ANSI * a, Context * c)
+{
+  ANSI_Parser *p = &a->parser;
+  struct timeval now, diff;
+  gettimeofday (&now, NULL);
+  timersub (&now, &p->last_escape, &diff);
+
+#if 0
+  fprintf (stderr, "ie %d tl %d.%06d eb %d\n",
+           p->in_escape, diff.tv_sec, diff.tv_usec, p->escape_ptr);
+#endif
+
+  if (!p->in_escape)
+    return;
+
+
+  /*Time up? */
+  if (diff.tv_sec || (diff.tv_usec > ANSI_ESCAPE_TIMEOUT))
+    ansi_flush_escape (a, c);
 
-  ansi_cls (a);
-  ansi_draw (a, &a->crt);
 }
 
-void ansi_parse_char(ANSI *a,int c,VT102 *v)
+
+void
+ansi_parse_char (ANSI * a, Context * c, int ch)
 {
-vt102_send(v,c);
+  ANSI_Parser *p = &a->parser;
+
+
+/*See if it's time to flush the escape*/
+  ansi_check_escape (a, c);
+
+  if (ch == 033)
+    {
+      if (p->in_escape)
+        ansi_flush_escape (a, c);
+
+      p->in_escape++;
+      p->escape_ptr = 0;
+      gettimeofday (&p->last_escape, NULL);
+    }
+
+  if (p->in_escape)
+    {
+      p->escape_buf[p->escape_ptr++] = ch;
+      ansi_parse_escape (a, c);
+    }
+  else
+    {
+      term_send (c, ch);
+    }
+
 }
 
-void ansi_parse(ANSI *a,char *buf,int len,VT102 *v)
+void
+ansi_parse (ANSI * a, Context * c, char *buf, int len)
 {
-while (len--) 
-ansi_parse_char(a,*(buf++),v);
+  while (len--)
+    ansi_parse_char (a, c, *(buf++));
 }
 
-int ansi_dispatch(ANSI *a,VT102 *v)
+int
+ansi_dispatch (ANSI * a, Context * c)
 {
-char buf[1024];
-int red;
+  char buf[1024];
+  int red;
+
+  ansi_check_escape (a, c);
+
+
+  if (!a->terminal)
+    return;
 
-red=read(a.fd,buf,sizeof(buf));
-if (red<0) return -1;
-if (!red) return -1;
+  red = a->terminal->recv (a->terminal, buf, sizeof (buf));
+  if (red <= 0)
+    return red;
 
-ansi_parse(a,buf,red,v);
+#if 0
+  if (*buf == 3)
+    return -1;
+#endif
 
-return 0;
+#if 1
+  if (*buf == 1)
+    {
+      ansi_reset (a, NULL);
+      return 0;
+    }
+  if (*buf == 2)
+    {
+      a->history_ptr = c->h->wptr;
+      HISTORY_INC (c->h, a->history_ptr);
+      return 0;
+    }
+#endif
+
+
+  ansi_parse (a, c, buf, red);
+
+  return 0;
+}
+
+
+void
+ansi_update (ANSI * a, Context * c)
+{
+  ansi_history (a, c->h);
+  ansi_draw (a, &c->v->crt);
 }
-int