diff --git a/gfx.c b/gfx.c
--- a/gfx.c
+++ b/gfx.c
@@ -190,7 +190,7 @@ void GfxDrawLine(int x, int y, int x2, i
 
 	// Check clipping first
 	{
-		const DrawPixelInfo *dpi = _cur_dpi;
+		DrawPixelInfo *dpi = _cur_dpi;
 		int t;
 
 		if (x < dpi->left && x2 < dpi->left) return;
@@ -560,7 +560,7 @@ int GetStringWidth(const char *str)
 
 int DoDrawString(const char *string, int x, int y, uint16 real_color)
 {
-	const DrawPixelInfo *dpi = _cur_dpi;
+	DrawPixelInfo *dpi = _cur_dpi;
 	FontSize size = _cur_fontsize;
 	byte c;
 	byte color;
@@ -753,47 +753,6 @@ static void GfxBlitTileZoomIn(BlitterPar
 			break;
 
 		default:
-#if 0
-			src = src_o;
-			do {
-				int offs = bp->start_x;
-
-				dst = bp->dst;
-				for (src = src_o;; src += num + 2) {
-					skip = src[1];
-					if (skip >= offs) {
-						dst += skip;
-						break;
-					}
-					offs -= skip;
-
-					done = src[0];
-					num = done & 0x7F;
-					if (num > offs) {
-						src += offs;
-						dst += offs;
-						num -= offs;
-						break;
-					}
-				}
-
-				src += 2;
-
-				for (;;) {
-					do {
-						*dst++ = *src++;
-					} while (--num != 0);
-
-					if (done & 0x80) break;
-
-					done = *src++;
-					num = done & 0x7F;
-					dst += *src++;
-				}
-
-				bp->dst += bp->pitch;
-			} while (--bp->height != 0);
-#else
 			do {
 				do {
 					done = src_o[0];
@@ -835,7 +794,6 @@ static void GfxBlitTileZoomIn(BlitterPar
 
 				bp->dst += bp->pitch;
 			} while (--bp->height != 0);
-#endif
 			break;
 	}
 }