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Use _cairo_pattern_get_extents in _fallback_paint to bound paint operators.

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This commit is contained in:
Keith Packard 2005-10-28 21:00:42 +00:00
parent 83ff8ea194
commit 1a25220634
2 changed files with 24 additions and 9 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-10-28 Keith Packard <keithp@keithp.com>
* src/cairo-surface.c: (_fallback_paint):
Use _cairo_pattern_get_extents in _fallback_paint to
bound paint operators.
2005-10-28 Keith Packard <keithp@keithp.com>
* src/cairo-pattern.c: (_cairo_pattern_get_extents):

27
src/cairo-surface.c
View file

@ -1145,32 +1145,41 @@ _cairo_surface_fill_rectangles (cairo_surface_t *surface,
static cairo_status_t
_fallback_paint (cairo_operator_t operator,
cairo_pattern_t *pattern,
cairo_pattern_t *source_pattern,
cairo_surface_t *dst)
{
cairo_status_t status;
cairo_rectangle_t rectangle;
cairo_rectangle_t extents;
cairo_box_t box;
cairo_traps_t traps;
status = _cairo_surface_get_extents (dst, &rectangle);
status = _cairo_surface_get_extents (dst, &extents);
if (status)
return status;
status = _cairo_clip_intersect_to_rectangle (dst->clip, &rectangle);
if (_cairo_operator_bounded_by_source (operator)) {
cairo_rectangle_t source_extents;
status = _cairo_pattern_get_extents (source_pattern, &source_extents);
if (status)
return status;
_cairo_rectangle_intersect (&extents, &source_extents);
}
status = _cairo_clip_intersect_to_rectangle (dst->clip, &extents);
if (status)
return status;
box.p1.x = _cairo_fixed_from_int (rectangle.x);
box.p1.y = _cairo_fixed_from_int (rectangle.y);
box.p2.x = _cairo_fixed_from_int (rectangle.x + rectangle.width);
box.p2.y = _cairo_fixed_from_int (rectangle.y + rectangle.height);
box.p1.x = _cairo_fixed_from_int (extents.x);
box.p1.y = _cairo_fixed_from_int (extents.y);
box.p2.x = _cairo_fixed_from_int (extents.x + extents.width);
box.p2.y = _cairo_fixed_from_int (extents.y + extents.height);
status = _cairo_traps_init_box (&traps, &box);
if (status)
return status;
_cairo_surface_clip_and_composite_trapezoids (pattern,
_cairo_surface_clip_and_composite_trapezoids (source_pattern,
operator,
dst,
&traps,