| Summary: | It looks like Clipping of cairo doesn't work correctly. | ||
|---|---|---|---|
| Product: | cairo | Reporter: | Seongwon Cho <seongwon79> |
| Component: | image backend | Assignee: | Carl Worth <cworth> |
| Status: | RESOLVED FIXED | QA Contact: | cairo-bugs mailing list <cairo-bugs> |
| Severity: | critical | ||
| Priority: | highest | ||
| Version: | 1.10.3 | ||
| Hardware: | x86 (IA32) | ||
| OS: | Linux (All) | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | test code and result files | ||
commit fb3a193959bbfa71308338182f208e3221ddfa04 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Feb 9 22:06:18 2012 +0000 clip: Check whether an extents only clip contains the box If we steal the boxes, we leave behind an extents-only clip, i.e. only without a path or boxes, in which case do not return FALSE for the is-contained check on a rectangle. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> commit 3023ff86d58f97f3b2d3304c337920647bc8a147 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Feb 9 22:08:08 2012 +0000 clip: Apply the partial boxes for clip_combine_with_surface Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> commit 3443ad903d2ccff7d63a9116df7629d69d87d673 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Feb 9 22:08:41 2012 +0000 spans: Pass unbounded operations to the spans compositors Only bail if we need to combine clipping with the spans (either for a bounded or unbounded operation). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> commit bb86e332da9a7837b6fd6476efd9be77572dd706 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Thu Feb 9 22:11:24 2012 +0000 traps: composite_boxes() is not a mask constructor Since it doesn't combine the clip in a single pass, don't claim to. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> |
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Created attachment 52943 [details] test code and result files Hi, I make test app which it contains 4 clips and 1 path and call cairo_fill() on cairo 1.11.3 (upstream latest) Each clips may have different AA option and path has CAIRO_ANTIALIAS_DEFAULT. In this scenario clipping doesn't work correctly. If I change the AA of path to CAIRO_ANTIALIAS_NONE clipping works well. As I analysis of cairo clip_and_composite_boxes() in cairo-spans-compositor.c has problem. Even I set clip on application, composite_needs_clip() in composite_boxes() returns FALSE and call scan converter without clip information. I attached test code with png files. Thanks.