vcl/source/outdev/textline.cxx | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
New commits:
commit 2987a0f4d38463a167e23c243668974d2cb863fb
Author: Caolán McNamara <caol...@redhat.com>
AuthorDate: Tue Sep 14 20:44:17 2021 +0100
Commit: Caolán McNamara <caol...@redhat.com>
CommitDate: Wed Sep 15 09:44:12 2021 +0200
Related: tdf#143831 the svp aliased case ends up overly washed out
as seen under gtk3
Change-Id: I0bcea49f8c24e9f773b357483cea78e58bb07e15
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/122099
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caol...@redhat.com>
diff --git a/vcl/source/outdev/textline.cxx b/vcl/source/outdev/textline.cxx
index 417eb7342715..b7445b4b825e 100644
--- a/vcl/source/outdev/textline.cxx
+++ b/vcl/source/outdev/textline.cxx
@@ -1055,7 +1055,17 @@ void OutputDevice::DrawWaveLine(const Point& rStartPos,
const Point& rEndPos, to
pVirtDev->Erase();
pVirtDev->SetAntialiasing( AntialiasingFlags::Enable );
pVirtDev->ImplDrawWaveLineBezier( 0, 0, nWordLength, 0,
nWaveHeight, fOrientation, nLineWidth );
- rLineCache.insert( pVirtDev->GetBitmapEx( Point( 0, 0 ),
pVirtDev->GetOutputSize() ), GetLineColor(), nLineWidth, nWaveHeight,
nWordLength, aWavylinebmp );
+ BitmapEx aBitmapEx(pVirtDev->GetBitmapEx(Point(0, 0),
pVirtDev->GetOutputSize()));
+
+ // Ideally we don't need this block, but in the split rgb surface
+ separate alpha surface
+ // with Antialiasing enabled and the svp/cairo backend we get both
surfaces antialiased
+ // so their combination of aliases merge to overly wash-out the
color. Hack it by taking just
+ // the alpha surface and use it to blend the original solid line
color
+ Bitmap aSolidColor(aBitmapEx.GetBitmap());
+ aSolidColor.Erase(GetLineColor());
+ aBitmapEx = BitmapEx(aSolidColor, aBitmapEx.GetAlpha());
+
+ rLineCache.insert( aBitmapEx, GetLineColor(), nLineWidth,
nWaveHeight, nWordLength, aWavylinebmp );
}
if ( aWavylinebmp.ImplGetBitmapSalBitmap() != nullptr )
{
