Bug 693534: 0 bits of antialiasing broken

When I optimised sharp edge rendering back in commit 720859d,
I made a mistake that can result in broken renderings.

Fixed here. Thanks for Dan Waleke for reporting this.

1 files changed, 3 insertions, 1 deletions

diff --git a/draw/draw_edge.c b/draw/draw_edge.c
index 637f9864..9fc21d97 100644
--- a/draw/draw_edge.c
+++ b/draw/draw_edge.c
@@ -933,10 +933,12 @@ fz_scan_convert_sharp(fz_gel *gel, int eofill, fz_bbox clip,
 			y += height;
 		else
 		{
+			int h;
 			if (height >= clip.y1 - y)
 				height = clip.y1 - y;
 
-			while (height--)
+			h = height;
+			while (h--)
 			{
 				if (eofill)
 					even_odd_sharp(gel, y, clip, dst, color);