Attachment 154050 Details for Bug 238882 – gutenprint-ink-levels.patch

[patch] gutenprint-ink-levels.patch

gutenprint-ink-levels.patch (text/plain), 1.88 KB, created by Tim Waugh on 2007-05-03 16:46:36 UTC

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Creator: Tim Waugh

Created: 2007-05-03 16:46:36 UTC

Size: 1.88 KB

patch

obsolete

>--- gutenprint-5.0.0.99.1/src/cups/commandtoepson.c.ink-levels	2004-07-19 00:26:41.000000000 +0100
>+++ gutenprint-5.0.0.99.1/src/cups/commandtoepson.c	2007-05-03 17:12:28.000000000 +0100
>@@ -60,6 +60,7 @@
>   char	line[1024],	/* Line from file */
> 	*lineptr;	/* Pointer into line */
>   int	feedpage;	/* Feed the page */
>+  int	inklevels;
> 
> 
>  /*
>@@ -104,6 +105,7 @@
> 
>   pwrite("\033(R\010\000\000REMOTE1", 13);
>   feedpage = 0;
>+  inklevels = 0;
> 
>  /*
>   * Read the commands from the file and send the appropriate commands...
>@@ -176,6 +178,7 @@
>       */
> 
>       pwrite("IQ\001\000\001", 5);
>+      inklevels = 1;
>     }
>     else if (strncasecmp(lineptr, "SetAlignment", 12) == 0)
>     {
>@@ -219,6 +222,63 @@
>     putchar(12);
>   }
> 
>+  if (inklevels)
>+  {
>+    ssize_t got;
>+    ssize_t total = 0;
>+    char buffer[1024];
>+    char *p;
>+    const double timeout = 5.0;
>+    double t;
>+    int ready = 0;
>+    p = buffer;
>+    while (!ready)
>+    {
>+      t = timeout;
>+      got = cupsBackChannelRead (p, buffer + sizeof (buffer) - p, t);
>+      if (got <= 0)
>+	break;
>+
>+      total += got;
>+      buffer[total] = '\0';
>+      if (strchr (buffer, '\f'))
>+	ready = 1;
>+    }
>+
>+    if (ready)
>+    {
>+      p = strstr (buffer, "IQ:");
>+      if (p)
>+      {
>+	const char digits[] = "0123456789abcdef";
>+	int supply_low = 0;
>+	int i;
>+	p += 3;
>+	for (i = 0; i < 4 && p < buffer + total - 1; i++, p += 2)
>+	{
>+	  char *s;
>+	  int dig1, dig2;
>+	  int percent;
>+	  s = strchr (digits, tolower (p[0]));
>+	  if (!s)
>+	    break;
>+	  dig1 = s - digits;
>+	  s = strchr (digits, tolower (p[1]));
>+	  if (!s)
>+	    break;
>+	  dig2 = s - digits;
>+	  percent = (dig1 << 4) + dig2;
>+	  fprintf (stderr, "DEBUG: ink level %d\n", percent);
>+	  if (percent <= 10)
>+	    supply_low = 1;
>+	}
>+
>+	fprintf (stderr, "STATE: %cmarker-supply-low-warning\n",
>+		 supply_low ? '+' : '-');
>+      }
>+    }
>+  }
>+
>  /*
>   * Reset the printer...
>   */

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Attachments on bug 238882: 154050