QtOpenGL/plugins/platformsupport: use new QRegion::begin()/end() instead of rect()

Saves e.g. ~900b and ~2900b in text size in QtOpenGL and
XcbQpa libs, resp., on optimized GCC 5.3 Linux AMD64 builds.

Change-Id: Id904689164ca32df41118a23747c70048d8e6604
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp b/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp
index daa0b229ec..c4169affdd 100644
--- a/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp
+++ b/src/plugins/platforms/mirclient/qmirclientbackingstore.cpp
@@ -97,7 +97,7 @@ void QMirClientBackingStore::updateTexture()
     QRegion fixed;
     QRect imageRect = mImage.rect();
 
-    Q_FOREACH (const QRect &rect, mDirty.rects()) {
+    for (const QRect &rect : mDirty) {
         // intersect with image rect to be sure
         QRect r = imageRect & rect;
 
@@ -110,7 +110,7 @@ void QMirClientBackingStore::updateTexture()
         fixed |= r;
     }
 
-    Q_FOREACH (const QRect &rect, fixed.rects()) {
+    for (const QRect &rect : fixed) {
         // if the sub-rect is full-width we can pass the image data directly to
         // OpenGL instead of copying, since there is no gap between scanlines
         if (rect.width() == imageRect.width()) {