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| author | danakj@chromium.org <danakj@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-10 20:54:18 +0000 |
|---|---|---|
| committer | danakj@chromium.org <danakj@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-06-10 20:54:18 +0000 |
| commit | d103d78637fd20062dfe2fec7276c368905b2c8a (patch) | |
| tree | a7675d1eee13dfd65e8c54384fd441885d859bd3 /cc/output | |
| parent | 475c5f1b2f69f32c454dcf32d75543d23c714d64 (diff) | |
| download | chromium_src-d103d78637fd20062dfe2fec7276c368905b2c8a.zip chromium_src-d103d78637fd20062dfe2fec7276c368905b2c8a.tar.gz chromium_src-d103d78637fd20062dfe2fec7276c368905b2c8a.tar.bz2 | |
cc: Disable anti-aliasing in software compositor for tiled layers.
When an edge of a quad is internal to a layer, it should not be anti-aliased.
Since we can't control this behaviour right now, we should just disable
anti-aliasing on external edges as well in this case, to avoid rendering
artifacts inside the layer along tile boundaries.
R=enne@chromium.org
BUG=248222
Review URL: https://codereview.chromium.org/16422003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@205304 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/output')
| -rw-r--r-- | cc/output/software_renderer.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/cc/output/software_renderer.cc b/cc/output/software_renderer.cc index 9884666..d6c598a 100644 --- a/cc/output/software_renderer.cc +++ b/cc/output/software_renderer.cc @@ -223,7 +223,14 @@ void SoftwareRenderer::DoDrawQuad(DrawingFrame* frame, const DrawQuad* quad) { current_paint_.reset(); if (!IsScaleAndTranslate(sk_device_matrix)) { - current_paint_.setAntiAlias(true); + // TODO(danakj): Until we can enable AA only on exterior edges of the + // layer, disable AA if any interior edges are present. crbug.com/248175 + bool all_four_edges_are_exterior = quad->IsTopEdge() && + quad->IsLeftEdge() && + quad->IsBottomEdge() && + quad->IsRightEdge(); + if (all_four_edges_are_exterior) + current_paint_.setAntiAlias(true); current_paint_.setFilterBitmap(true); } |