Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Adding a threshold for partial updates.
  Fixed arm X11 build.

2 files changed, 4 insertions, 3 deletions

diff --git a/src/corelib/arch/qatomic_arm.h b/src/corelib/arch/qatomic_arm.h
index 9df02a2..bca3375 100644
--- a/src/corelib/arch/qatomic_arm.h
+++ b/src/corelib/arch/qatomic_arm.h
@@ -107,7 +107,7 @@ Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
 
 // kernel places a restartable cmpxchg implementation at a fixed address
 extern "C" typedef int (qt_atomic_eabi_cmpxchg_int_t)(int oldval, int newval, volatile int *ptr);
-extern "C" typedef int (qt_atomic_eabi_cmpxchg_ptr_t)(void *oldval, void *newval, volatile void *ptr);
+extern "C" typedef int (qt_atomic_eabi_cmpxchg_ptr_t)(const void *oldval, const void *newval, volatile void *ptr);
 #define qt_atomic_eabi_cmpxchg_int (*reinterpret_cast<qt_atomic_eabi_cmpxchg_int_t *>(0xffff0fc0))
 #define qt_atomic_eabi_cmpxchg_ptr (*reinterpret_cast<qt_atomic_eabi_cmpxchg_ptr_t *>(0xffff0fc0)) 
 
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index f98dcff..8157b2a 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -534,8 +534,9 @@ void QGLWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &
                 }
             }
 #endif
-            if (d_ptr->paintedRegion.boundingRect() != geometry() && 
-                hasPartialUpdateSupport()) {
+            if (hasPartialUpdateSupport() &&
+                d_ptr->paintedRegion.boundingRect().width() * d_ptr->paintedRegion.boundingRect().height() <
+                geometry().width() * geometry().height() * 0.2) {
                 context()->d_func()->swapRegion(&d_ptr->paintedRegion);             
             } else
                 context()->swapBuffers();