[Marble-bugs] [Bug 199259] marble openstreetmap text and limit line are blurred

[Dennis Nienhüser]

https://bugs.kde.org/show_bug.cgi?id=199259


Dennis Nienhüser <earthwings at gentoo.org> changed:

           What    |Removed                     |Added
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                 CC|                            |earthwings at gentoo.org




--- Comment #20 from Dennis Nienhüser <earthwings gentoo org>  2011-05-14 13:13:05 ---
Hey Bernhard, awesome work, thanks :-)

I've got a little problem with the patch: When setting still image quality to
high or when panning the map after using +/- (at which point I get sharp
tiles), I get blurred images again. It seems to be caused by an off-by-one
error, can you look at the following patch which fixes that for me?

diff --git a/src/lib/TileScalingTextureMapper.cpp
b/src/lib/TileScalingTextureMapper.cpp
index 63274fb..2ec719f 100644
--- a/src/lib/TileScalingTextureMapper.cpp
+++ b/src/lib/TileScalingTextureMapper.cpp
@@ -146,7 +146,7 @@ void TileScalingTextureMapper::mapTexture( GeoPainter
*geoPainter, ViewParams *v
                 StackedTile *const tile = m_tileLoader->loadTile( stackedId );
                 tile->setUsed( true );

-                const QSize size = QSize( qCeil( rect.right() - rect.left() ),
qCeil( rect.bottom() - rect.top() ) );
+                const QSize size = QSize( qRound( rect.right() - rect.left()
), qRound( rect.bottom() - rect.top() ) );
                 const int cacheHash = 2 * ( size.width() % 2 ) + (
size.height() % 2 );
                 const TileId cacheId = TileId( cacheHash,
stackedId.zoomLevel(), stackedId.x(), stackedId.y() );
                 QPixmap *im = (*m_cache)[cacheId];

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