Fix for BCM2727 chip detection on Symbian

QSymbianGraphcisSystemEx::hasBCM2727() uses
bool QApplicationPrivate::useTranslucentEGLSurfaces to decide if
Symbian is running on BCM2727 chip which is not entirely correct.

bool QApplicationPrivate::useTranslucentEGLSurfaces should be
assigned according to QSymbianGraphcisSystemEx::hasBCM2727()
and QSymbianGraphcisSystemEx::hasBCM2727() should be
also static function.

Task-number: QTBUG-19578
Reviewed-by: Laszlo Agocs

1 files changed, 30 insertions, 6 deletions

diff --git a/src/gui/painting/qgraphicssystemex_symbian.cpp b/src/gui/painting/qgraphicssystemex_symbian.cpp
index 980f72c..dc4dd92 100644
--- a/src/gui/painting/qgraphicssystemex_symbian.cpp
+++ b/src/gui/painting/qgraphicssystemex_symbian.cpp
@@ -45,10 +45,39 @@
 #include "private/qapplication_p.h"
 #include "qwidget_p.h"
 
-#include <QDebug>
+#include <e32property.h>
 
 QT_BEGIN_NAMESPACE
 
+static bool bcm2727Initialized = false;
+static bool bcm2727 = false;
+
+bool QSymbianGraphicsSystemEx::hasBCM2727()
+{
+    if (bcm2727Initialized)
+        return bcm2727;
+
+    const TUid KIvePropertyCat = {0x2726beef};
+    enum TIvePropertyChipType {
+        EVCBCM2727B1 = 0x00000000,
+        EVCBCM2763A0 = 0x04000100,
+        EVCBCM2763B0 = 0x04000102,
+        EVCBCM2763C0 = 0x04000103,
+        EVCBCM2763C1 = 0x04000104,
+        EVCBCMUnknown = 0x7fffffff
+    };
+
+    TInt chipType = EVCBCMUnknown;
+    if (RProperty::Get(KIvePropertyCat, 0, chipType) == KErrNone) {
+        if (chipType == EVCBCM2727B1)
+            bcm2727 = true;
+    }
+
+    bcm2727Initialized = true;
+
+    return bcm2727;
+}
+
 void QSymbianGraphicsSystemEx::releaseCachedGpuResources()
 {
     // Do nothing here
@@ -65,11 +94,6 @@ void QSymbianGraphicsSystemEx::releaseAllGpuResources()
     }
 }
 
-bool QSymbianGraphicsSystemEx::hasBCM2727()
-{
-    return !QApplicationPrivate::instance()->useTranslucentEGLSurfaces;
-}
-
 void QSymbianGraphicsSystemEx::forceToRaster(QWidget *window)
 {
     if (window && window->isWindow()) {