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xcb: Fix a NULL dereference

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This fixes a crash in the hatchings test case.

Signed-off-by: Uli Schlachter <psychon@znc.in>
This commit is contained in:
Uli Schlachter 2011-07-21 17:33:13 +02:00
parent 1aa077e129
commit adf026fffe
1 changed files with 5 additions and 3 deletions
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8
src/cairo-xcb-surface-render.c
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@ -3336,9 +3336,11 @@ _composite_opacity_boxes (void *closure,
info.opacity = mask_pattern->color.alpha;
/* XXX for lots of boxes create a clip region for the fully opaque areas */
for (i = 0; i < clip->num_boxes; i++)
do_unaligned_box(composite_opacity, &info,
&clip->boxes[i], dst_x, dst_y);
if (clip) {
for (i = 0; i < clip->num_boxes; i++)
do_unaligned_box(composite_opacity, &info,
&clip->boxes[i], dst_x, dst_y);
}
cairo_surface_destroy (&info.src->base);
return CAIRO_STATUS_SUCCESS;