AuroraMiddleware/qt5base-lts
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Round the image scaling when not antialiased

Browse Source 
When painting an image with antialiasing not turned on, round the
target area to closest integers (pixels).

Task-number: QTBUG-116297
Pick-to: 6.6
Change-Id: I64e78a9087ee042aef0ea297c48b5ead36697d10
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>
This commit is contained in:
Kaj Grönholm 2023-09-12 09:56:54 +03:00
parent 104a0a9ecd
commit 743c1cf96b
1 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/gui/painting/qpaintengine_raster.cpp
View File

@ -2342,9 +2342,16 @@ void QRasterPaintEngine::drawImage(const QRectF &r, const QImage &img, const QRe
}
SrcOverScaleFunc func = qScaleFunctions[d->rasterBuffer->format][img.format()];
if (func && (!clip || clip->hasRectClip)) {
QRectF tr = qt_mapRect_non_normalizing(r, s->matrix);
if (!s->flags.antialiased) {
tr.setX(qRound(tr.x()));
tr.setY(qRound(tr.y()));
tr.setWidth(qRound(tr.width()));
tr.setHeight(qRound(tr.height()));
}
func(d->rasterBuffer->buffer(), d->rasterBuffer->bytesPerLine(),
img.bits(), img.bytesPerLine(), img.height(),
qt_mapRect_non_normalizing(r, s->matrix), sr,
tr, sr,
!clip ? d->deviceRect : clip->clipRect,
s->intOpacity);
return;