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Bug#192365: [patch] [s3] Bresenham line drawing accel fixed


The same problem in xserver-xfree86 Debian package version 4.3.0.dfsg.1-1
Applying the attached patch solves the problem, this patch already have
the current XFree86 mainstream.

See the file xc/programs/Xserver/hw/xfree86/xaa/XAA.HOWTO Section 2.3
(Solid Lines), void SubsequentSolidBresenhamLine(...)
The file is also accessible at


P.S.: I have tested the "almost horizontal line" code with the hardware

0000:00:0b.0 VGA compatible controller: S3 Inc. 86c764/765 [Trio32/64/64V+] (rev 54)
--- xc/programs/Xserver/hw/xfree86/drivers/s3/s3_accel.c.orig	2001-10-28 04:33:44.000000000 +0100
+++ xc/programs/Xserver/hw/xfree86/drivers/s3/s3_accel.c	2004-06-05 18:44:02.000000000 +0200
@@ -310,7 +310,7 @@
 	int error, e1, e2;
 	error = minor + err;
-	e1 = major;
+	e1 = minor;
 	e2 = minor - major;
 	if (major) {

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