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| author | Taekyun Kim <podain77@gmail.com> | 2011-06-15 23:23:02 +0900 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-06-15 16:13:15 +0100 |
| commit | 8e7589abcc4075d4a1de9151e79fda5d093d03bb (patch) | |
| tree | 38db22405052c62e9fe9324034806419e7c1d674 /src/cairo-bentley-ottmann-rectangular.c | |
| parent | 3b9c8744898823a4b09917f0540a324318fef726 (diff) | |
| download | cairo-8e7589abcc4075d4a1de9151e79fda5d093d03bb.tar.gz | |
tessellator: Fixed to produce an output box with x1 <= x2 for single box input
Winding of a box is toggled by swapping x1, x2 coordinates. So
we have to swap those coordinate rather than just copying.
Many routines assume that boxes are left-top to right-bottom
convention. So tessellator should produce such output boxes.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/cairo-bentley-ottmann-rectangular.c')
| -rw-r--r-- | src/cairo-bentley-ottmann-rectangular.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/cairo-bentley-ottmann-rectangular.c b/src/cairo-bentley-ottmann-rectangular.c index 88986bb56..9a4dcd9f3 100644 --- a/src/cairo-bentley-ottmann-rectangular.c +++ b/src/cairo-bentley-ottmann-rectangular.c @@ -739,6 +739,13 @@ _cairo_bentley_ottmann_tessellate_boxes (const cairo_boxes_t *in, if (unlikely (in->num_boxes == 1)) { cairo_box_t box = in->chunks.base[0]; _cairo_boxes_clear (out); + + if (box.p1.x > box.p2.x) { + cairo_fixed_t tmp = box.p1.x; + box.p1.x = box.p2.x; + box.p2.x = tmp; + } + status = _cairo_boxes_add (out, &box); assert (status == CAIRO_STATUS_SUCCESS); return CAIRO_STATUS_SUCCESS; |