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[region] Add _cairo_region_union

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Søren Sandmann Pedersen 2009-02-17 05:58:34 -05:00 • committed by Søren Sandmann Pedersen
parent df883aa937
commit 15564d1949
2 changed files with 20 additions and 0 deletions
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4
src/cairo-region-private.h
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@ -100,6 +100,10 @@ cairo_private cairo_status_t
_cairo_region_intersect (cairo_region_t *dst,
cairo_region_t *other);
cairo_private cairo_status_t
_cairo_region_union (cairo_region_t *dst,
cairo_region_t *other);
cairo_private cairo_status_t
_cairo_region_union_rect (cairo_region_t *dst,
cairo_rectangle_int_t *rect);

16
src/cairo-region.c
View file

@ -246,6 +246,22 @@ _cairo_region_intersect (cairo_region_t *dst, cairo_region_t *other)
return CAIRO_STATUS_SUCCESS;
}
cairo_private cairo_status_t
_cairo_region_union (cairo_region_t *dst,
cairo_region_t *other)
{
if (dst->status)
return dst->status;
if (other->status)
return other->status;
if (!pixman_region32_union (&dst->rgn, &dst->rgn, &other->rgn))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_region_union_rect (cairo_region_t *dst,
cairo_rectangle_int_t *rect)