diff options
| author | Kaj Grönholm <kaj.gronholm@qt.io> | 2023-09-12 09:56:54 +0300 |
|---|---|---|
| committer | Kaj Grönholm <kaj.gronholm@qt.io> | 2023-09-13 12:05:59 +0300 |
| commit | 743c1cf96bae2722ac70a551c7d66b7d2f6a65d8 (patch) | |
| tree | 2d02cd1b15048d873a5dfa863fbbe8bc3e713dbc /src/gui/painting | |
| parent | 104a0a9ecdb18d65e4d9075d87e8860c6c9d8335 (diff) | |
Round the image scaling when not antialiased
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>
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index 4d730fccc3..0ff52a8730 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -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; |