diff options
| -rw-r--r-- | src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp index 8f37bcf..ff997c0 100644 --- a/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp +++ b/src/plugins/gfxdrivers/directfb/qdirectfbscreen.cpp @@ -1689,11 +1689,22 @@ uchar *QDirectFBScreen::lockSurface(IDirectFBSurface *surface, DFBSurfaceLockFla return reinterpret_cast<uchar*>(mem); } +static inline bool isFullUpdate(IDirectFBSurface *surface, const QRegion ®ion, const QPoint &offset) +{ + if (offset == QPoint(0, 0) && region.rectCount() == 1) { + QSize size; + surface->GetSize(surface, &size.rwidth(), &size.rheight()); + if (region.boundingRect().size() == size) + return true; + } + return false; +} void QDirectFBScreen::flipSurface(IDirectFBSurface *surface, DFBSurfaceFlipFlags flipFlags, const QRegion ®ion, const QPoint &offset) { - if (!(flipFlags & DSFLIP_BLIT) || d_ptr->directFBFlags & NoPartialFlip) { + if (d_ptr->directFBFlags & NoPartialFlip + || (!(flipFlags & DSFLIP_BLIT) && QT_PREPEND_NAMESPACE(isFullUpdate(surface, region, offset)))) { surface->Flip(surface, 0, flipFlags); } else { if (!(d_ptr->directFBFlags & BoundingRectFlip) && region.rectCount() > 1) { |