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sna: We can always compare the box to be subtracted against the dirty extents 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-12-24 12:17:53 +00:00
parent cc21d3fa04
commit f8c91f229a
1 changed files with 11 additions and 11 deletions
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22
src/sna/sna_damage.c
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@ -962,13 +962,13 @@ static struct sna_damage *__sna_damage_subtract(struct sna_damage *damage,
if (!sna_damage_maybe_contains_box(damage, &region->extents))
return damage;
if (damage->mode != DAMAGE_SUBTRACT) {
if (region_is_singular(region) &&
box_contains(&region->extents, &damage->extents)) {
__sna_damage_destroy(damage);
return NULL;
}
if (region_is_singular(region) &&
box_contains(&region->extents, &damage->extents)) {
__sna_damage_destroy(damage);
return NULL;
}
if (damage->mode != DAMAGE_SUBTRACT) {
if (damage->dirty)
__sna_damage_reduce(damage);
@ -1041,12 +1041,12 @@ inline static struct sna_damage *__sna_damage_subtract_box(struct sna_damage *da
if (!sna_damage_maybe_contains_box(damage, box))
return damage;
if (damage->mode != DAMAGE_SUBTRACT) {
if (box_contains(box, &damage->extents)) {
__sna_damage_destroy(damage);
return NULL;
}
if (box_contains(box, &damage->extents)) {
__sna_damage_destroy(damage);
return NULL;
}
if (damage->mode != DAMAGE_SUBTRACT) {
if (damage->dirty)
__sna_damage_reduce(damage);