diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2013-02-12 10:25:03 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2013-02-12 10:27:58 +0000 |
| commit | a09b7c79278465ee1ad916697e0153eae640d8df (patch) | |
| tree | c57f78caaaabe595ed09d1235a04e987075c707d | |
| parent | be1561dadece6e947a3ca78d1124197b4278ce96 (diff) | |
path: Fix bbox computation for negative scale factors
The fast path for transforming a path by a simple scale factor, forgot
to fix up the orientation of the box if that scale factor was negative.
Reported-by: Edward Zimmermann <Edward.Zimmermann@cib.de>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
| -rw-r--r-- | src/cairo-path-fixed.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/cairo-path-fixed.c b/src/cairo-path-fixed.c index 66fbdfe1..10a65159 100644 --- a/src/cairo-path-fixed.c +++ b/src/cairo-path-fixed.c @@ -965,8 +965,19 @@ _cairo_path_fixed_offset_and_scale (cairo_path_fixed_t *path, path->extents.p1.x = _cairo_fixed_mul (scalex, path->extents.p1.x) + offx; path->extents.p2.x = _cairo_fixed_mul (scalex, path->extents.p2.x) + offx; + if (scalex < 0) { + cairo_fixed_t t = path->extents.p1.x; + path->extents.p1.x = path->extents.p2.x; + path->extents.p2.x = t; + } + path->extents.p1.y = _cairo_fixed_mul (scaley, path->extents.p1.y) + offy; path->extents.p2.y = _cairo_fixed_mul (scaley, path->extents.p2.y) + offy; + if (scaley < 0) { + cairo_fixed_t t = path->extents.p1.y; + path->extents.p1.y = path->extents.p2.y; + path->extents.p2.y = t; + } } void |