# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1363410653 -7200
# Node ID 0f984156753ea8b3798cef254cbd223112fb4563
# Parent  ba868d348de8064eda1a4740c3b703a3d2b56d6d
fixed the jerkiness

diff -r ba868d348de8 -r 0f984156753e src/tunnel.c
--- a/src/tunnel.c	Sat Mar 16 06:39:52 2013 +0200
+++ b/src/tunnel.c	Sat Mar 16 07:10:53 2013 +0200
@@ -89,7 +89,7 @@
 	}
 	colrange = palm_color_range();
 
-	init_timer(120);
+	init_timer(under_windows ? 0 : 120);
 	start_time = get_msec();
 
 	return 0;
@@ -113,8 +113,7 @@
 	unsigned long msec = get_msec() - start_time;
 
 	unsigned int i;
-	unsigned char voffs = msec >> 3;
-	unsigned char uoffs = msec >> 6;
+	unsigned char offs = msec >> 3;
 
 	unsigned char *fbptr = fbuf;
 	unsigned long *uptr = umap;
@@ -123,8 +122,8 @@
 	for(i=0; i<64000; i++) {
 		unsigned long u = *uptr++;
 		unsigned long v = *vptr++;
-		unsigned long tx = ((((unsigned long)(u - uoffs) << 3) & 0xff) * tex->width) >> 8;
-		unsigned long ty = (((unsigned long)(v + voffs) & 0xff) * tex->height) >> 8;
+		unsigned long tx = ((((unsigned long)((u << 3) - offs)) & 0xff) * tex->width) >> 8;
+		unsigned long ty = (((unsigned long)(v + offs) & 0xff) * tex->height) >> 8;
 
 		unsigned long base = tex->pixels[ty * tex->width + tx];
 		long zcue_shift = colrange - (v >> 6);