[src/trunk]: src/sys/dev/pci Copy forwards even when moving to the right, if ...

[mycroft <mycroft%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ebb7f5a65714
branches:  trunk
changeset: 536463:ebb7f5a65714
user:      mycroft <mycroft%NetBSD.org@localhost>
date:      Mon Sep 16 16:40:57 2002 +0000

description:
Copy forwards even when moving to the right, if the regions do not overlap.

diffstat:

 sys/dev/pci/tga.c |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (32 lines):

diff -r 5fda35186218 -r ebb7f5a65714 sys/dev/pci/tga.c
--- a/sys/dev/pci/tga.c Mon Sep 16 16:39:52 2002 +0000
+++ b/sys/dev/pci/tga.c Mon Sep 16 16:40:57 2002 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: tga.c,v 1.43 2002/09/16 16:33:13 mycroft Exp $ */
+/* $NetBSD: tga.c,v 1.44 2002/09/16 16:40:57 mycroft Exp $ */
 
 /*
  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
@@ -28,7 +28,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: tga.c,v 1.43 2002/09/16 16:33:13 mycroft Exp $");
+__KERNEL_RCSID(0, "$NetBSD: tga.c,v 1.44 2002/09/16 16:40:57 mycroft Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -1091,11 +1091,11 @@
        yinc = ydir * dst->ri_stride;
 
         wb = w * (dst->ri_depth / 8);
-       if (sx >= dx) {      /* moving to the left */
+       if (sx >= dx || (sx + w) <= dx) {       /* copy forwards */
                xstart = 0;
                xend = wb;
                xdir = 1;
-       } else {             /* moving to the right */
+       } else {                                /* copy backwards */
                xstart = wb;
                xend = 0;
                xdir = -1;