From 2de69581c28bf115852037ca41eba13cb7335976 Mon Sep 17 00:00:00 2001
From: Massimo Valentini <mvalentini@src.gnome.org>
Date: Sun, 19 Oct 2014 09:19:10 +0200
Subject: tor-scan-converter: can't do_fullrow when intersection in row +
 0.5subrow

the active edges list must be left sorted at the next possible use
and since full_row does not deal with intersections it is not usable
when there is an intersection in the top half of the next row first
subrow

Reported-and-tested-by: Matthew Leach
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85151
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

diff --git a/src/cairo-tor-scan-converter.c b/src/cairo-tor-scan-converter.c
index 4adcafb..14922d0 100644
--- src/cairo-tor-scan-converter.c
+++ src/cairo-tor-scan-converter.c
@@ -1167,8 +1167,8 @@ can_do_full_row (struct active_list *active)
 
 	if (e->dy) {
 	    struct quorem x = e->x;
-	    x.quo += e->dxdy_full.quo - e->dxdy.quo/2;
-	    x.rem += e->dxdy_full.rem - e->dxdy.rem/2;
+	    x.quo += e->dxdy_full.quo;
+	    x.rem += e->dxdy_full.rem;
 	    if (x.rem < 0) {
 		x.quo--;
 		x.rem += e->dy;
-- 
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