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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qgraphicssystemex_symbian_p.h"
#include "private/qwidget_p.h"
#include "private/qbackingstore_p.h"
#include "private/qapplication_p.h"
#include <e32property.h>
#ifdef Q_SYMBIAN_SUPPORTS_SURFACES
#include "private/qegl_p.h"
#endif
QT_BEGIN_NAMESPACE
static bool bcm2727Initialized = false;
static bool bcm2727 = false;
#ifdef Q_SYMBIAN_SUPPORTS_SURFACES
typedef EGLBoolean (*NOK_resource_profiling)(EGLDisplay, EGLint, EGLint*, EGLint, EGLint*);
#define EGL_PROF_TOTAL_MEMORY_NOK 0x3070
#endif
// Detect if Qt is running on BCM2727 chip.
// BCM2727 is a special case on Symbian because
// it has only 32MB GPU memory which exposes
// significant limitations to hw accelerated UI.
bool QSymbianGraphicsSystemEx::hasBCM2727()
{
if (bcm2727Initialized)
return bcm2727;
#ifdef Q_SYMBIAN_SUPPORTS_SURFACES
EGLDisplay display = QEgl::display();
#if 1
// Hacky but fast ~0ms.
const char* vendor = eglQueryString(display, EGL_VENDOR);
if (strstr(vendor, "Broadcom")) {
const TUid KIvePropertyCat = {0x2726beef};
enum TIvePropertyChipType {
EVCBCM2727B1 = 0x00000000,
EVCBCM2763A0 = 0x04000100,
EVCBCM2763B0 = 0x04000102,
EVCBCM2763C0 = 0x04000103,
EVCBCM2763C1 = 0x04000104,
EVCBCMUnknown = 0x7fffffff
};
// Broadcom driver publishes KIvePropertyCat PS key on
// devices which are running on BCM2727 chip and post Anna Symbian.
TInt chipType = EVCBCMUnknown;
if (RProperty::Get(KIvePropertyCat, 0, chipType) == KErrNone) {
if (chipType == EVCBCM2727B1)
bcm2727 = true;
} else if (QSysInfo::symbianVersion() <= QSysInfo::SV_SF_3) {
// Device is running on Symbian Anna or older Symbian^3 in which
// KIvePropertyCat is not published. These ones are always 32MB devices.
bcm2727 = true;
} else {
// We have some other Broadcom chip on post Anna Symbian.
// Should have > 32MB GPU memory.
}
}
#else
// Fool proof but takes 15-20ms and we don't want this delay on app startup...
// All devices with <= 32MB GPU memory should be
// dealed in similar manner to BCM2727
// So let's query max GPU memory amount.
NOK_resource_profiling eglQueryProfilingData = (NOK_resource_profiling)eglGetProcAddress("eglQueryProfilingDataNOK");
if (eglQueryProfilingData) {
EGLint dataCount;
eglQueryProfilingData(display,
EGL_PROF_QUERY_GLOBAL_BIT_NOK |
EGL_PROF_QUERY_MEMORY_USAGE_BIT_NOK,
NULL,
0,
(EGLint*)&dataCount);
// Allocate room for the profiling data
EGLint* profData = (EGLint*)malloc(dataCount * sizeof(EGLint));
memset(profData,0,dataCount * sizeof(EGLint));
// Retrieve the profiling data
eglQueryProfilingData(display,
EGL_PROF_QUERY_GLOBAL_BIT_NOK |
EGL_PROF_QUERY_MEMORY_USAGE_BIT_NOK,
profData,
dataCount,
(EGLint*)&dataCount);
int totalMemory;
EGLint i = 0;
while (profData && i < dataCount) {
switch (profData[i++]) {
case EGL_PROF_TOTAL_MEMORY_NOK:
totalMemory = profData[i++];
break;
default:
i++;
}
}
// ok, hasBCM2727() naming is a bit misleading but Qt must
// behave the same on all chips like BCM2727 (<= 32MB GPU memory)
// and our code (and others) are already using this function.
if (totalMemory <= 33554432)
bcm2727 = true;
}
#endif
#endif // Q_SYMBIAN_SUPPORTS_SURFACES
bcm2727Initialized = true;
return bcm2727;
}
void QSymbianGraphicsSystemEx::releaseCachedGpuResources()
{
// Do nothing here
// This virtual function should be 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
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