--- a/lib64gfx.c	Wed May 14 21:28:14 2014 +0300
+++ b/lib64gfx.c	Thu May 15 02:05:53 2014 +0300
@@ -703,9 +703,7 @@
 int dmC64ConvertGenericBMP2Image(DMImage *dst, const DMC64Image *src, const BOOL doubleMC)
 {
     Uint8 *dp = dst->data;
-    int divisor = doubleMC ? 4 : 8,
-        wdivisor = doubleMC ? 2 : 1,
-        yc;
+    int yc;
 
     // Sanity check arguments
     if (dst == NULL || src == NULL)
@@ -740,6 +738,10 @@
         }
         else
         {
+            const int
+                wdivisor = doubleMC ? 2 : 1,
+                divisor  = doubleMC ? 4 : 8;
+
             for (xc = 0; xc < dst->width / wdivisor; xc++)
             {
                 const int x = xc / divisor;
@@ -765,19 +767,22 @@
                     }
                     c = dmC64GetMCColor(src, (src->bitmap[0][bmoffs] >> v) & 3, 0, vbank, scroffs);
                     *d++ = c;
-                    *d++ = c;
+                    if (doubleMC)
+                        *d++ = c;
                 }
                 else
                 if (src->type & D64_FMT_ILACE)
                 {
                     *d++ = dmC64GetMCColor(src, (src->bitmap[0][bmoffs] >> v) & 3, 0, src->laceBank1, scroffs);
-                    *d++ = dmC64GetMCColor(src, (src->bitmap[1][bmoffs] >> v) & 3, 0, src->laceBank2, scroffs);
+                    if (doubleMC)
+                        *d++ = dmC64GetMCColor(src, (src->bitmap[1][bmoffs] >> v) & 3, 0, src->laceBank2, scroffs);
                 }
                 else
                 {
                     c = dmC64GetMCColor(src, (src->bitmap[0][bmoffs] >> v) & 3, 0, 0, scroffs);
                     *d++ = c;
-                    *d++ = c;
+                    if (doubleMC)
+                        *d++ = c;
                 }
             }
         }