diff options
| author | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-01 14:05:41 +0100 |
|---|---|---|
| committer | Sérgio Martins <sergio.martins@kdab.com> | 2015-06-29 19:31:59 +0000 |
| commit | 20147fae60fd062788c51b058ebb70b33d7fd664 (patch) | |
| tree | e677f42184ea22f1af510814d11f7afdd6fd027f /src/plugins/platforms/xcb/qxcbwindow.cpp | |
| parent | 29e88fd8f066c14a405a52bbfe3715dc3e5e891f (diff) | |
Use QVector::reserve() all over the place.
Reduces internal memory fragmentation.
The search criteria was:
QVector::append(), QVector::push_back(), QVector::operator<<()
and QVector::operator+=() calls inside for, do and while loops.
Statements inside ifs and out of loops weren't considered.
Change-Id: Ie5aaf3cdfac938994e6e5dfa5f51de501ed79a0c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Diffstat (limited to 'src/plugins/platforms/xcb/qxcbwindow.cpp')
| -rw-r--r-- | src/plugins/platforms/xcb/qxcbwindow.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp index d2da137591..daee44fa96 100644 --- a/src/plugins/platforms/xcb/qxcbwindow.cpp +++ b/src/plugins/platforms/xcb/qxcbwindow.cpp @@ -2688,7 +2688,9 @@ void QXcbWindow::setMask(const QRegion ®ion) } else { const int dpr = devicePixelRatio(); QVector<xcb_rectangle_t> rects; - foreach (const QRect &r, region.rects()) + const QVector<QRect> regionRects = region.rects(); + rects.reserve(regionRects.count()); + foreach (const QRect &r, regionRects) rects.push_back(qRectToXCBRectangle(mapLocalGeometryToNative(r, dpr))); xcb_shape_rectangles(connection()->xcb_connection(), XCB_SHAPE_SO_SET, XCB_SHAPE_SK_BOUNDING, XCB_CLIP_ORDERING_UNSORTED, |