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| author | Robin Watts <robin.watts@artifex.com> | 2013-01-22 17:47:25 +0000 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2013-01-23 16:52:42 +0000 |
| commit | 0e9c3462598dedc22ba7520865c83d29ffb160b9 (patch) | |
| tree | d5eb673674b9d7ab625f77635426eb999551e151 /xps | |
| parent | d374ec148dda5934432112245716c8a207165c6c (diff) | |
| download | mupdf-0e9c3462598dedc22ba7520865c83d29ffb160b9.tar.xz | |
Bug 693520: Fix rendering of non-orthogonal gradients.
Jarkko Poyry(*) points out that gradients are incorrectly rendered
when they aren't axis aligned. This review fixes it here using a
patch inspired by both his and zenikos patch. Thanks guys.
Further thanks to zeniko for spotting that it applies to the XPS
code too and providing a patch.
* Apologies for the lack of the accent - my editor/git gives problems
with them in commit messages.
Diffstat (limited to 'xps')
| -rw-r--r-- | xps/xps_gradient.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/xps/xps_gradient.c b/xps/xps_gradient.c index 77d9c56f..a0b342bc 100644 --- a/xps/xps_gradient.c +++ b/xps/xps_gradient.c @@ -391,7 +391,7 @@ xps_draw_linear_gradient(xps_document *doc, fz_matrix ctm, fz_rect area, xps_parse_point(end_point_att, &x1, &y1); p1.x = x0; p1.y = y0; p2.x = x1; p2.y = y1; - p1 = fz_transform_point(ctm, p1); p2 = fz_transform_point(ctm, p2); + area = fz_transform_rect(fz_invert_matrix(ctm), area); x = p2.x - p1.x; y = p2.y - p1.y; k = ((area.x0 - p1.x) * x + (area.y0 - p1.y) * y) / (x * x + y * y); mi = floorf(k); ma = ceilf(k); |