RValue ref version of QPixmap::fromImage()

When converting from a temporary image we can use inplace conversion
since we don't have to worry about changes made to the original.

This should give a speedup in several places where QPixmaps are made
from
the return values of methods returning QImages.

Change-Id: I1835bcf3fc061c4dbbb3d0507ec84178dc49b29b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gui/image/qplatformpixmap.h b/src/gui/image/qplatformpixmap.h
index 08e03f10bd..81125bdec4 100644
--- a/src/gui/image/qplatformpixmap.h
+++ b/src/gui/image/qplatformpixmap.h
@@ -79,6 +79,12 @@ public:
     virtual void resize(int width, int height) = 0;
     virtual void fromImage(const QImage &image,
                            Qt::ImageConversionFlags flags) = 0;
+    virtual void fromImageInPlace(QImage &image,
+                                  Qt::ImageConversionFlags flags)
+    {
+        fromImage(image, flags);
+    }
+
     virtual void fromImageReader(QImageReader *imageReader,
                                  Qt::ImageConversionFlags flags);