Aurelien
/
xf86-video-intel
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sna: Fix off-by-one in computation of width for inplace trapezoids 

This lead to the dropping of the last pixel for small area trapezoids,
such as the right hand outline of buttons under ClearLooks.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48320
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-05-11 14:04:09 +01:00
parent a58a543e84
commit 6924fc525d
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/sna/sna_trapezoids.c
View File

@ -1581,11 +1581,11 @@ inplace_subrow(struct active_list *active, int8_t *row,
if (xstart < FAST_SAMPLES_X * width) {
FAST_SAMPLES_X_TO_INT_FRAC(xstart, ix, fx);
row[ix] -= FAST_SAMPLES_X - fx;
if (fx && ix + 1< width)
if (fx && ix + 1 < width)
row[++ix] -= fx;
if (ix > *max)
*max = ix;
if (ix >= *max)
*max = ix + 1;
xstart = INT_MIN;
} else
@ -1622,6 +1622,7 @@ inplace_subrow(struct active_list *active, int8_t *row,
} else {
edge->prev->next = next;
next->prev = edge->prev;
active->min_height = -1;
}
edge = next;