xf86-video-intel: src/sna/sna_trapezoids.c
Chris Wilson
ickle at kemper.freedesktop.org
Mon Mar 12 03:53:05 PDT 2012
src/sna/sna_trapezoids.c | 19 +++++++++++--------
1 file changed, 11 insertions(+), 8 deletions(-)
New commits:
commit 7ae45584327a10b05f7aee99bcb71e9d990a3e9b
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Mon Mar 12 10:49:46 2012 +0000
sna/trapezoids: Add paranoia to ensure that the span starts within the clip
Reported-by: Clemens Eisserer <linuxhippy at gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47226
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
diff --git a/src/sna/sna_trapezoids.c b/src/sna/sna_trapezoids.c
index 3e2802e..e76f918 100644
--- a/src/sna/sna_trapezoids.c
+++ b/src/sna/sna_trapezoids.c
@@ -1538,16 +1538,19 @@ inplace_subrow(struct active_list *active, int8_t *row,
xstart = INT_MIN;
}
} else if (xstart < 0) {
- grid_scaled_x_t fx;
- int ix;
-
xstart = MAX(edge->x.quo, 0);
- FAST_SAMPLES_X_TO_INT_FRAC(xstart, ix, fx);
- if (ix < *min)
- *min = ix;
+ if (xstart < FAST_SAMPLES_X * width) {
+ grid_scaled_x_t fx;
+ int ix;
- row[ix++] += FAST_SAMPLES_X - fx;
- row[ix] += fx;
+ FAST_SAMPLES_X_TO_INT_FRAC(xstart, ix, fx);
+ if (ix < *min)
+ *min = ix;
+
+ row[ix++] += FAST_SAMPLES_X - fx;
+ if (ix < width)
+ row[ix] += fx;
+ }
}
if (--edge->height_left) {
More information about the xorg-commit
mailing list