diff options
Diffstat (limited to 'src/gui/painting/qpaintengine_raster.cpp')
| -rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index a3e199cec9..71881bbc45 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -2414,15 +2414,20 @@ void QRasterPaintEngine::drawImage(const QRectF &r, const QImage &img, const QRe QRectF targetBounds = s->matrix.mapRect(r); bool exceedsPrecision = r.width() > 0x7fff || r.height() > 0x7fff + || targetBounds.left() < -0x7fff + || targetBounds.top() < -0x7fff + || targetBounds.right() > 0x7fff + || targetBounds.bottom() > 0x7fff || targetBounds.width() > 0x7fff || targetBounds.height() > 0x7fff || s->matrix.m11() >= 512 || s->matrix.m22() >= 512; - if (!exceedsPrecision && d->canUseFastImageBlending(d->rasterBuffer->compositionMode, img)) { if (s->matrix.type() > QTransform::TxScale) { SrcOverTransformFunc func = qTransformFunctions[d->rasterBuffer->format][img.format()]; - if (func && (!clip || clip->hasRectClip)) { + // The fast transform methods doesn't really work on small targets, see QTBUG-93475 + // And it can't antialias the edges + if (func && (!clip || clip->hasRectClip) && !s->flags.antialiased && targetBounds.width() >= 16 && targetBounds.height() >= 16) { func(d->rasterBuffer->buffer(), d->rasterBuffer->bytesPerLine(), img.bits(), img.bytesPerLine(), r, sr, !clip ? d->deviceRect : clip->clipRect, s->matrix, s->intOpacity); |