xf86-video-intel: src/sna/sna_trapezoids.c
Chris Wilson
ickle at kemper.freedesktop.org
Wed Mar 13 04:20:21 PDT 2013
src/sna/sna_trapezoids.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
New commits:
commit 80401f4fe54142c16ea7578b587529610b68cb67
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Wed Mar 13 11:01:45 2013 +0000
sna/trapezoids: Minimally replace points for TriFan
The realisation dawns that it wasn't the ordering of points within the
triangle, but simply that I was replacing the wrong one.
diff --git a/src/sna/sna_trapezoids.c b/src/sna/sna_trapezoids.c
index 2f346ea..ce0835a 100644
--- a/src/sna/sna_trapezoids.c
+++ b/src/sna/sna_trapezoids.c
@@ -7827,8 +7827,7 @@ trifan_fallback(CARD8 op,
-bounds.x1, -bounds.y1,
1, (pixman_triangle_t *)&tri);
for (i = 3; i < n; i++) {
- *p[1] = *p[2];
- *p[2] = points[i];
+ *p[2 - (i&1)] = points[i];
pixman_add_triangles(image,
-bounds.x1, -bounds.y1,
1, (pixman_triangle_t *)&tri);
@@ -7866,8 +7865,7 @@ trifan_fallback(CARD8 op,
src, dst, maskFormat,
xSrc, ySrc, 1, &tri);
for (i = 3; i < n; i++) {
- *p[1] = *p[2];
- *p[2] = points[i];
+ *p[2 - (i&1)] = points[i];
/* Should xSrc,ySrc be updated? */
triangles_fallback(op,
src, dst, maskFormat,
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