vcl/source/gdi/mapmod.cxx | 2 ++
vcl/source/outdev/map.cxx | 1 +
2 files changed, 3 insertions(+)
New commits:
commit c8dad7ebb7c1738ae1348f92d67124c165d83f00
Author: Michael Stahl <mst...@redhat.com>
Date: Fri May 15 22:46:18 2015 +0200
tdf#91195: vcl: reduce MapMode Fraction precision to avoid...
... overlow in ImplMapLogicToPixel. 50 bits is still too much, 44
appears to work for exporting PNG.
DocumentToGraphicRenderer::renderToGraphic() converts a double to
Fraction which is the source of the excess precision.
Change-Id: I93b11ef3a8be1c2f816f9697e5cd33eb00f7c2f9
diff --git a/vcl/source/gdi/mapmod.cxx b/vcl/source/gdi/mapmod.cxx
index b3b71c5..8980a8d 100644
--- a/vcl/source/gdi/mapmod.cxx
+++ b/vcl/source/gdi/mapmod.cxx
@@ -193,6 +193,7 @@ void MapMode::SetScaleX( const Fraction& rScaleX )
ImplMakeUnique();
mpImplMapMode->maScaleX = rScaleX;
+ mpImplMapMode->maScaleX.ReduceInaccurate(44);
}
void MapMode::SetScaleY( const Fraction& rScaleY )
@@ -200,6 +201,7 @@ void MapMode::SetScaleY( const Fraction& rScaleY )
ImplMakeUnique();
mpImplMapMode->maScaleY = rScaleY;
+ mpImplMapMode->maScaleY.ReduceInaccurate(44);
}
MapMode& MapMode::operator=( const MapMode& rMapMode )
diff --git a/vcl/source/outdev/map.cxx b/vcl/source/outdev/map.cxx
index e7eed88..6e34573 100644
--- a/vcl/source/outdev/map.cxx
+++ b/vcl/source/outdev/map.cxx
@@ -78,6 +78,7 @@ static Fraction ImplMakeFraction( long nN1, long nN2, long
nD1, long nD2 )
aF = Fraction( i*nN1, nD1 ) * Fraction( nN2, nD2 );
}
+ aF.ReduceInaccurate(44);
return aF;
}
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