svtools/source/filter/DocumentToGraphicRenderer.cxx | 3 +++
1 file changed, 3 insertions(+)
New commits:
commit dc49b07446f15dd68a7469d4619954f5e13f6c17
Author: Eike Rathke <er...@redhat.com>
Date: Tue Sep 19 14:31:11 2017 +0200
renderToGraphic: assert document and target size
Specifically a document width or height of 0 leads to div/0 =>
-nan(0x8000000000000) => MapMode with 2147483648 => Fraction numerator
overflow assert. Catch already here.
Change-Id: I06588c64104733c2df8c2e1d6983ad95c9a74e57
diff --git a/svtools/source/filter/DocumentToGraphicRenderer.cxx
b/svtools/source/filter/DocumentToGraphicRenderer.cxx
index 93b6000029e9..e5885f618df2 100644
--- a/svtools/source/filter/DocumentToGraphicRenderer.cxx
+++ b/svtools/source/filter/DocumentToGraphicRenderer.cxx
@@ -131,6 +131,9 @@ Graphic DocumentToGraphicRenderer::renderToGraphic(
if (!xDevice.is())
return Graphic();
+ assert( aDocumentSizePixel.Width() > 0 && aDocumentSizePixel.Height() > 0
&&
+ aTargetSizePixel.Width() > 0 && aTargetSizePixel.Height() > 0);
+
double fScaleX = aTargetSizePixel.Width() / (double)
aDocumentSizePixel.Width();
double fScaleY = aTargetSizePixel.Height() / (double)
aDocumentSizePixel.Height();
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