[Libreoffice-commits] core.git: vcl/opengl

[Tomaž Vajngerl]

 vcl/opengl/RenderList.cxx |    2 ++
 1 file changed, 2 insertions(+)

New commits:
commit cee552d2071601b6f4131eda9e9a0a17768ea272
Author: Tomaž Vajngerl <tomaz.vajngerl at collabora.co.uk>
Date:   Thu Dec 8 17:49:54 2016 +0100

    tdf#104034 skip polygons with less than 2 points
    
    We can get polypolgons with polygons that have 0 or 1 point only,
    so we need to guard agains division-by-zero errors by skipping if
    we detect such polygons (as we can't draw them anyway).
    
    Change-Id: Ia27fcde9467864b10572a78a848ea642a3559185
    Reviewed-on: https://gerrit.libreoffice.org/31770
    Reviewed-by: Tomaž Vajngerl <quikee at gmail.com>
    Tested-by: Tomaž Vajngerl <quikee at gmail.com>

diff --git a/vcl/opengl/RenderList.cxx b/vcl/opengl/RenderList.cxx
index 5f99513..cef311f 100644
--- a/vcl/opengl/RenderList.cxx
+++ b/vcl/opengl/RenderList.cxx
@@ -326,6 +326,8 @@ void RenderList::addDrawPolyPolygon(const basegfx::B2DPolyPolygon& rPolyPolygon,
                 aPolygon = rPolygon.getDefaultAdaptiveSubdivision();
 
             sal_uInt32 nPoints = aPolygon.count();
+            if (nPoints <= 1)
+                continue;
 
             GLfloat x1, y1, x2, y2;
             sal_uInt32 index1, index2;