diff options
Diffstat (limited to 'src/gui/painting')
| -rw-r--r-- | src/gui/painting/qpaintengine_raster.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp index 48974e8..08e14fb 100644 --- a/src/gui/painting/qpaintengine_raster.cpp +++ b/src/gui/painting/qpaintengine_raster.cpp @@ -68,6 +68,7 @@ // #include <private/qrasterizer_p.h> #include <private/qimage_p.h> #include <private/qstatictext_p.h> +#include "qmemrotate_p.h" #include "qpaintengine_raster_p.h" // #include "qbezier_p.h" @@ -2521,6 +2522,58 @@ QRectF qt_mapRect_non_normalizing(const QRectF &r, const QTransform &t) return QRectF(r.topLeft() * t, r.bottomRight() * t); } +namespace { + enum RotationType { + Rotation90, + Rotation180, + Rotation270, + NoRotation + }; + + inline RotationType qRotationType(const QTransform &transform) + { + QTransform::TransformationType type = transform.type(); + + if (type > QTransform::TxRotate) + return NoRotation; + + if (type == QTransform::TxRotate && qFuzzyIsNull(transform.m11()) && qFuzzyCompare(transform.m12(), qreal(-1)) + && qFuzzyCompare(transform.m21(), qreal(1)) && qFuzzyIsNull(transform.m22())) + return Rotation90; + + if (type == QTransform::TxScale && qFuzzyCompare(transform.m11(), qreal(-1)) && qFuzzyIsNull(transform.m12()) + && qFuzzyIsNull(transform.m21()) && qFuzzyCompare(transform.m22(), qreal(-1))) + return Rotation180; + + if (type == QTransform::TxRotate && qFuzzyIsNull(transform.m11()) && qFuzzyCompare(transform.m12(), qreal(1)) + && qFuzzyCompare(transform.m21(), qreal(-1)) && qFuzzyIsNull(transform.m22())) + return Rotation270; + + return NoRotation; + } + + template <typename T> void memRotate(RotationType type, const T *srcBase, int w, int h, int sbpl, T *dstBase, int dbpl) + { + switch (type) { + case Rotation90: + qt_memrotate90(srcBase, w, h, sbpl, dstBase, dbpl); + break; + case Rotation180: + qt_memrotate180(srcBase, w, h, sbpl, dstBase, dbpl); + break; + case Rotation270: + qt_memrotate270(srcBase, w, h, sbpl, dstBase, dbpl); + break; + case NoRotation: + break; + } + } + + inline bool isPixelAligned(const QRectF &rect) { + return QRectF(rect.toRect()) == rect; + } +} + /*! \reimp */ @@ -2582,6 +2635,58 @@ void QRasterPaintEngine::drawImage(const QRectF &r, const QImage &img, const QRe const QClipData *clip = d->clip(); + if (s->matrix.type() > QTransform::TxTranslate + && !stretch_sr + && (!clip || clip->hasRectClip) + && s->intOpacity == 256 + && (d->rasterBuffer->compositionMode == QPainter::CompositionMode_SourceOver + || d->rasterBuffer->compositionMode == QPainter::CompositionMode_Source) + && d->rasterBuffer->format == img.format() + && (d->rasterBuffer->format == QImage::Format_RGB16 + || d->rasterBuffer->format == QImage::Format_RGB32 + || (d->rasterBuffer->format == QImage::Format_ARGB32_Premultiplied + && d->rasterBuffer->compositionMode == QPainter::CompositionMode_Source))) + { + RotationType rotationType = qRotationType(s->matrix); + + if (rotationType != NoRotation && img.rect().contains(sr.toAlignedRect())) { + QRectF transformedTargetRect = s->matrix.mapRect(r); + + if ((!(s->renderHints & QPainter::SmoothPixmapTransform) && !(s->renderHints & QPainter::Antialiasing)) + || (isPixelAligned(transformedTargetRect) && isPixelAligned(sr))) + { + QRect clippedTransformedTargetRect = transformedTargetRect.toRect().intersected(clip ? clip->clipRect : d->deviceRect); + if (clippedTransformedTargetRect.isNull()) + return; + + QRectF clippedTargetRect = s->matrix.inverted().mapRect(QRectF(clippedTransformedTargetRect)); + + QRect clippedSourceRect + = QRectF(sr.x() + clippedTargetRect.x() - r.x(), sr.y() + clippedTargetRect.y() - r.y(), + clippedTargetRect.width(), clippedTargetRect.height()).toRect(); + + uint dbpl = d->rasterBuffer->bytesPerLine(); + uint sbpl = img.bytesPerLine(); + + uchar *dst = d->rasterBuffer->buffer(); + uint bpp = img.depth() >> 3; + + const uchar *srcBase = img.bits() + clippedSourceRect.y() * sbpl + clippedSourceRect.x() * bpp; + uchar *dstBase = dst + clippedTransformedTargetRect.y() * dbpl + clippedTransformedTargetRect.x() * bpp; + + uint cw = clippedSourceRect.width(); + uint ch = clippedSourceRect.height(); + + if (d->rasterBuffer->format == QImage::Format_RGB16) + memRotate(rotationType, (quint16 *)srcBase, cw, ch, sbpl, (quint16 *)dstBase, dbpl); + else + memRotate(rotationType, (quint32 *)srcBase, cw, ch, sbpl, (quint32 *)dstBase, dbpl); + + return; + } + } + } + if (s->matrix.type() > QTransform::TxTranslate || stretch_sr) { if (s->flags.fast_images) { |