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#include "qgraphicssystemex_symbian_p.h"
#include "private/qwidget_p.h"
#include "private/qbackingstore_p.h"
#include "private/qapplication_p.h"

#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
    // This is implemented in graphics system specific plugin
}

void QSymbianGraphicsSystemEx::releaseAllGpuResources()
{
    releaseCachedGpuResources();

    foreach (QWidget *widget, QApplication::topLevelWidgets()) {
        if (QTLWExtra *topExtra = qt_widget_private(widget)->maybeTopData())
            topExtra->backingStore.destroy();
    }
}

void QSymbianGraphicsSystemEx::forceToRaster(QWidget *window)
{
    if (window && window->isWindow()) {
        qt_widget_private(window)->createTLExtra();
        if (QTLWExtra *topExtra = qt_widget_private(window)->maybeTopData()) {
            topExtra->forcedToRaster = 1;
            if (topExtra->backingStore.data()) {
                topExtra->backingStore.create(window);
                topExtra->backingStore.registerWidget(window);
            }
        }
    }
}

QT_END_NAMESPACE