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authorJason Barron <jbarron@trolltech.com>2010-02-22 12:54:20 (GMT)
committerJason Barron <jbarron@trolltech.com>2010-02-23 10:35:43 (GMT)
commit925dac20184820222765385b391a78d776ee61bb (patch)
treef4c7a5a5a39b979ec75b9960ce551a36fdab47e3 /src/gui/kernel/qapplication_s60.cpp
parentbbb996e6cbe4a19ceb72650dd82a8b3cf60553db (diff)
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Enable window size caching on Symbian NGA variants.
Enabling this flag saves us the round-trip to WSERV whenever RWindow::Size() is called because the size is cached on the client side. This can improve performance because functions like eglSwapBuffers() call Size() to see if the window size has changed and without the cache this introduces an extra IPC call for every frame. Task-number: QT-2849 Reviewed-by: Iain
Diffstat (limited to 'src/gui/kernel/qapplication_s60.cpp')
-rw-r--r--src/gui/kernel/qapplication_s60.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index bf3ad71..fdbbeb2 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -1146,6 +1146,10 @@ void qt_init(QApplicationPrivate * /* priv */, int)
#endif
S60->wsSession().SetAutoFlush(ETrue);
+#ifdef Q_SYMBIAN_WINDOW_SIZE_CACHE
+ TRAP_IGNORE(S60->wsSession().EnableWindowSizeCacheL());
+#endif
+
S60->updateScreenSize();