1 files changed, 19 insertions, 35 deletions

diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index a3e199cec9..38bad9a6b0 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -560,31 +560,6 @@ void QRasterPaintEngine::updateMatrix(const QTransform &matrix)
     QRasterPaintEngineState *s = state();
     // FALCON: get rid of this line, see drawImage call below.
     s->matrix = matrix;
-    QTransform::TransformationType txop = s->matrix.type();
-
-    switch (txop) {
-
-    case QTransform::TxNone:
-        s->flags.int_xform = true;
-        break;
-
-    case QTransform::TxTranslate:
-        s->flags.int_xform = qreal(int(s->matrix.dx())) == s->matrix.dx()
-                            && qreal(int(s->matrix.dy())) == s->matrix.dy();
-        break;
-
-    case QTransform::TxScale:
-        s->flags.int_xform = qreal(int(s->matrix.dx())) == s->matrix.dx()
-                            && qreal(int(s->matrix.dy())) == s->matrix.dy()
-                            && qreal(int(s->matrix.m11())) == s->matrix.m11()
-                            && qreal(int(s->matrix.m22())) == s->matrix.m22();
-        break;
-
-    default: // shear / perspective...
-        s->flags.int_xform = false;
-        break;
-    }
-
     s->flags.tx_noshear = qt_scaleForTransform(s->matrix, &s->txscale);
 
     ensureOutlineMapper();
@@ -617,7 +592,6 @@ QRasterPaintEngineState::QRasterPaintEngineState()
     flags.bilinear = false;
     flags.legacy_rounding = false;
     flags.fast_text = true;
-    flags.int_xform = true;
     flags.tx_noshear = true;
     flags.fast_images = true;
 
@@ -1793,7 +1767,7 @@ void QRasterPaintEngine::fill(const QVectorPath &path, const QBrush &brush)
     QRectF cpRect = path.controlPointRect();
     const QRectF pathDeviceRect = s->matrix.mapRect(cpRect);
     // Skip paths that by conservative estimates are completely outside the paint device.
-    if (!pathDeviceRect.intersects(QRectF(d->deviceRect)))
+    if (!pathDeviceRect.intersects(QRectF(d->deviceRect)) || !pathDeviceRect.isValid())
         return;
 
     ProcessSpans blend = d->getBrushFunc(pathDeviceRect, &s->brushData);
@@ -2414,15 +2388,20 @@ 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);
@@ -3090,10 +3069,10 @@ QRasterPaintEnginePrivate::getPenFunc(const QRectF &rect,
 static QPair<int, int> visibleGlyphRange(const QRectF &clip, QFontEngine *fontEngine,
                                          glyph_t *glyphs, QFixedPoint *positions, int numGlyphs)
 {
-    QFixed clipLeft = QFixed::fromReal(clip.left());
-    QFixed clipRight = QFixed::fromReal(clip.right());
-    QFixed clipTop = QFixed::fromReal(clip.top());
-    QFixed clipBottom = QFixed::fromReal(clip.bottom());
+    QFixed clipLeft = QFixed::fromReal(clip.left() - 1);
+    QFixed clipRight = QFixed::fromReal(clip.right() + 1);
+    QFixed clipTop = QFixed::fromReal(clip.top() - 1);
+    QFixed clipBottom = QFixed::fromReal(clip.bottom() + 1);
 
     int first = 0;
     while (first < numGlyphs) {
@@ -3309,6 +3288,11 @@ void QRasterPaintEnginePrivate::rasterizeLine_dashed(QLineF line,
 
     qreal length = line.length();
     Q_ASSERT(length > 0);
+    if (length / (patternLength * width) > QDashStroker::repetitionLimit()) {
+        rasterizer->rasterizeLine(line.p1(), line.p2(), width / length, squareCap);
+        return;
+    }
+
     while (length > 0) {
         const bool rasterize = *inDash;
         qreal dash = (pattern.at(*dashIndex) - *dashOffset) * width;
@@ -3575,7 +3559,7 @@ QRasterPaintEngine::ClipType QRasterPaintEngine::clipType() const
     \internal
     Returns the bounding rect of the currently set clip.
 */
-QRect QRasterPaintEngine::clipBoundingRect() const
+QRectF QRasterPaintEngine::clipBoundingRect() const
 {
     Q_D(const QRasterPaintEngine);
 
@@ -3587,7 +3571,7 @@ QRect QRasterPaintEngine::clipBoundingRect() const
     if (clip->hasRectClip)
         return clip->clipRect;
 
-    return QRect(clip->xmin, clip->ymin, clip->xmax - clip->xmin, clip->ymax - clip->ymin);
+    return QRectF(clip->xmin, clip->ymin, clip->xmax - clip->xmin, clip->ymax - clip->ymin);
 }
 
 void QRasterPaintEnginePrivate::initializeRasterizer(QSpanData *data)