lineart fix

backend/genesys.c

@@ -4732,7 +4732,7 @@ genesys_fill_segmented_buffer (Genesys_Device * dev, uint8_t *work_buffer_dst, s
   int depth,i;
   
   depth = dev->settings.depth;
-  if (dev->settings.scan_mode == SCAN_MODE_LINEART)
+  if (dev->settings.scan_mode == SCAN_MODE_LINEART && dev->settings.dynamic_lineart==SANE_FALSE)
     depth = 1;
 
       /* fill buffer if needed */

backend/genesys_gl847.c

@@ -2602,7 +2602,11 @@ gl847_init_regs_for_scan (Genesys_Device * dev)
   flags = 0;
 
   /* emulated lineart from gray data is required for now */
-  flags |= SCAN_FLAG_DYNAMIC_LINEART;
+  if(dev->settings.scan_mode == SCAN_MODE_LINEART 
+     && dev->settings.dynamic_lineart)
+    {
+      flags |= SCAN_FLAG_DYNAMIC_LINEART;
+    }
 
   /* backtracking isn't handled well, so don't enable it */
   flags |= SCAN_FLAG_DISABLE_BUFFER_FULL_MOVE;