git_clone/thorvg
1
0
Fork 0
mirror of https://github.com/thorvg/thorvg.git synced 2025-06-08 13:43:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

sw_engine renderer: fix aliasing problem.

Browse source 
a corner case is detected that anti-aliasing is missing at shapes
if the shape has the dash-style stroke.

By adding the condition, it applies anti-aliasing properly.

@Issues: 394
This commit is contained in:
Hermet Park 2021-05-28 14:22:52 +09:00
parent f1d5571aad
commit 61f07677c5
1 changed files with 3 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
src/lib/sw_engine/tvgSwRenderer.cpp
View file

@ -98,8 +98,9 @@ struct SwShapeTask : SwTask
if (renderShape) {
/* We assume that if stroke width is bigger than 2,
shape outline below stroke could be full covered by stroke drawing.
Thus it turns off antialising in that condition. */
auto antiAlias = (strokeAlpha == 255 && strokeWidth > 2) ? false : true;
Thus it turns off antialising in that condition.
Also, it shouldn't be dash style. */
auto antiAlias = (strokeAlpha == 255 && strokeWidth > 2 && sdata->strokeDash(nullptr) == 0) ? false : true;
if (!shapeGenRle(&shape, sdata, antiAlias, clips.count > 0 ? true : false)) goto err;
++addStroking;
}