Windows-4.7.4/src/openvg/qvg_symbian.cpp - platform/external/qt - Git at Google

 /****************************************************************************
 **
 ** 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 "qpixmapdata_vg_p.h"
 #include "qvgfontglyphcache_p.h"
 #include <QtGui/private/qnativeimagehandleprovider_p.h>
 #include <private/qt_s60_p.h>

 #include <fbs.h>

 #ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
 #  include <sgresource/sgimage.h>
 #  ifdef SYMBIAN_FBSERV_GLYPHDATA // defined in fbs.h
 #    define QT_SYMBIAN_HARDWARE_GLYPH_CACHE
 #    include <graphics/fbsglyphdataiterator.h>
 #    include <private/qfontengine_s60_p.h>
 #  endif
 #endif

 QT_BEGIN_NAMESPACE

 typedef VGImage (*_vgCreateEGLImageTargetKHR)(VGeglImageKHR);
 static _vgCreateEGLImageTargetKHR qt_vgCreateEGLImageTargetKHR = 0;

 namespace QVG
 {
     VGImage vgCreateEGLImageTargetKHR(VGeglImageKHR eglImage);
 }

 VGImage QVG::vgCreateEGLImageTargetKHR(VGeglImageKHR eglImage)
 {
     if (!qt_vgCreateEGLImageTargetKHR && QEgl::hasExtension("EGL_KHR_image"))
         qt_vgCreateEGLImageTargetKHR = (_vgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");

     return qt_vgCreateEGLImageTargetKHR ? qt_vgCreateEGLImageTargetKHR(eglImage) : 0;
 }

 extern int qt_vg_pixmap_serial;

 #ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
 static VGImage sgImageToVGImage(QEglContext *context, const RSgImage &sgImage)
 {
     // when "0" used as argument then
     // default display, context are used
     if (!context)
         context = qt_vg_create_context(0, QInternal::Pixmap);

     VGImage vgImage = VG_INVALID_HANDLE;

     if (sgImage.IsNull())
         return vgImage;

     const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
     EGLImageKHR eglImage = QEgl::eglCreateImageKHR(QEgl::display(),
             EGL_NO_CONTEXT,
             EGL_NATIVE_PIXMAP_KHR,
             (EGLClientBuffer)&sgImage,
             (EGLint*)KEglImageAttribs);

     if (!eglImage)
         return vgImage;

     vgImage = QVG::vgCreateEGLImageTargetKHR(eglImage);

     QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
     return vgImage;
 }
 #endif

 void QVGPixmapData::cleanup()
 {
     is_null = w = h = 0;
     recreate = false;
     source = QVolatileImage();
 }

 bool QVGPixmapData::initFromNativeImageHandle(void *handle, const QString &type)
 {
     if (type == QLatin1String("RSgImage")) {
         fromNativeType(handle, QPixmapData::SgImage);
         return true;
     } else if (type == QLatin1String("CFbsBitmap")) {
         fromNativeType(handle, QPixmapData::FbsBitmap);
         return true;
     }
     return false;
 }

 void QVGPixmapData::createFromNativeImageHandleProvider()
 {
     void *handle = 0;
     QString type;
     nativeImageHandleProvider->get(&handle, &type);
     if (handle) {
         if (initFromNativeImageHandle(handle, type)) {
             nativeImageHandle = handle;
             nativeImageType = type;
         } else {
             qWarning("QVGPixmapData: Unknown native image type '%s'", qPrintable(type));
         }
     } else {
         qWarning("QVGPixmapData: Native handle is null");
     }
 }

 void QVGPixmapData::releaseNativeImageHandle()
 {
     if (nativeImageHandleProvider && nativeImageHandle) {
         nativeImageHandleProvider->release(nativeImageHandle, nativeImageType);
         nativeImageHandle = 0;
         nativeImageType = QString();
     }
 }

 static inline bool conversionLessFormat(QImage::Format format)
 {
     switch (format) {
         case QImage::Format_RGB16: // EColor64K
         case QImage::Format_RGB32: // EColor16MU
         case QImage::Format_ARGB32: // EColor16MA
         case QImage::Format_ARGB32_Premultiplied: // EColor16MAP
         case QImage::Format_Indexed8: // EGray256, EColor256
             return true;
         default:
             return false;
     }
 }

 void QVGPixmapData::fromNativeType(void* pixmap, NativeType type)
 {
     if (type == QPixmapData::SgImage && pixmap) {
 #if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
         RSgImage *sgImage = reinterpret_cast<RSgImage*>(pixmap);
         destroyImages();
         prevSize = QSize();

         vgImage = sgImageToVGImage(context, *sgImage);
         if (vgImage != VG_INVALID_HANDLE) {
             w = vgGetParameteri(vgImage, VG_IMAGE_WIDTH);
             h = vgGetParameteri(vgImage, VG_IMAGE_HEIGHT);
             d = 32; // We always use ARGB_Premultiplied for VG pixmaps.
         }

         is_null = (w <= 0 || h <= 0);
         source = QVolatileImage(); // readback will be done later, only when needed
         recreate = false;
         prevSize = QSize(w, h);
         updateSerial();
 #endif
     } else if (type == QPixmapData::FbsBitmap && pixmap) {
         CFbsBitmap *bitmap = reinterpret_cast<CFbsBitmap *>(pixmap);
         QSize size(bitmap->SizeInPixels().iWidth, bitmap->SizeInPixels().iHeight);
         resize(size.width(), size.height());
         source = QVolatileImage(bitmap); // duplicates only, if possible
         if (source.isNull())
             return;
         if (!conversionLessFormat(source.format())) {
             // Here we may need to copy if the formats do not match.
             // (e.g. for display modes other than EColor16MAP and EColor16MU)
             source.beginDataAccess();
             QImage::Format format = idealFormat(&source.imageRef(), Qt::AutoColor);
             source.endDataAccess(true);
             source.ensureFormat(format);
         }
         recreate = true;
     } else if (type == QPixmapData::VolatileImage && pixmap) {
         QVolatileImage *img = static_cast<QVolatileImage *>(pixmap);
         resize(img->width(), img->height());
         source = *img;
         recreate = true;
     } else if (type == QPixmapData::NativeImageHandleProvider && pixmap) {
         destroyImages();
         nativeImageHandleProvider = static_cast<QNativeImageHandleProvider *>(pixmap);
         // Cannot defer the retrieval, we need at least the size right away.
         createFromNativeImageHandleProvider();
     }
 }

 void* QVGPixmapData::toNativeType(NativeType type)
 {
     if (type == QPixmapData::SgImage) {
 #if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
         toVGImage();

         if (!isValid() || vgImage == VG_INVALID_HANDLE)
             return 0;

         TInt err = 0;

         RSgDriver driver;
         err = driver.Open();
         if (err != KErrNone)
             return 0;

         TSgImageInfo sgInfo;
         sgInfo.iPixelFormat = EUidPixelFormatARGB_8888_PRE;
         sgInfo.iSizeInPixels.SetSize(w, h);
         sgInfo.iUsage = ESgUsageBitOpenVgImage | ESgUsageBitOpenVgSurface;

         QScopedPointer<RSgImage> sgImage(new RSgImage());
         err = sgImage->Create(sgInfo, NULL, NULL);
         if (err != KErrNone) {
             driver.Close();
             return 0;
         }

         const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
         EGLImageKHR eglImage = QEgl::eglCreateImageKHR(QEgl::display(),
                 EGL_NO_CONTEXT,
                 EGL_NATIVE_PIXMAP_KHR,
                 (EGLClientBuffer)sgImage.data(),
                 (EGLint*)KEglImageAttribs);
         if (!eglImage || eglGetError() != EGL_SUCCESS) {
             sgImage->Close();
             driver.Close();
             return 0;
         }

         VGImage dstVgImage = QVG::vgCreateEGLImageTargetKHR(eglImage);
         if (!dstVgImage || vgGetError() != VG_NO_ERROR) {
             QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
             sgImage->Close();
             driver.Close();
             return 0;
         }

         vgCopyImage(dstVgImage, 0, 0,
                 vgImage, 0, 0,
                 w, h, VG_FALSE);

         if (vgGetError() != VG_NO_ERROR) {
             sgImage->Close();
             sgImage.reset();
         }

         // release stuff
         vgDestroyImage(dstVgImage);
         QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
         driver.Close();
         return reinterpret_cast<void*>(sgImage.take());
 #endif
     } else if (type == QPixmapData::FbsBitmap && isValid()) {
         ensureReadback(true);
         if (source.isNull()) {
             source = QVolatileImage(w, h, sourceFormat());
         }
         // Just duplicate the bitmap handle, no data copying happens.
         return source.duplicateNativeImage();
     }
     return 0;
 }

 QVolatileImage QVGPixmapData::toVolatileImage() const
 {
     return source;
 }

 QSymbianVGFontGlyphCache::QSymbianVGFontGlyphCache() : QVGFontGlyphCache()
 {
 #ifdef QT_SYMBIAN_HARDWARE_GLYPH_CACHE
     invertedGlyphs = true;
 #endif
 }

 void QSymbianVGFontGlyphCache::cacheGlyphs(QVGPaintEnginePrivate *d,
                                            QFontEngine *fontEngine,
                                            const glyph_t *g, int count)
 {
 #ifdef QT_SYMBIAN_HARDWARE_GLYPH_CACHE
     QFontEngineS60 *s60fontEngine = static_cast<QFontEngineS60*>(fontEngine);
     if (s60fontEngine->m_activeFont->TypeUid() != KCFbsFontUid)
             return QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);

     QVector<glyph_t> uncachedGlyphs;
     while (count-- > 0) {
         // Skip this glyph if we have already cached it before.
         glyph_t glyph = *g++;
         if (((glyph < 256) && ((cachedGlyphsMask[glyph / 32] & (1 << (glyph % 32))) != 0))
             || cachedGlyphs.contains(glyph))
             continue;
         if (!uncachedGlyphs.contains(glyph))
             uncachedGlyphs.append(glyph);
     }

     if (!uncachedGlyphs.isEmpty()) {
         CFbsFont *cfbsFont = static_cast<CFbsFont *>(s60fontEngine->m_activeFont);
         RFbsGlyphDataIterator iter;

         int err = iter.Open(*cfbsFont, (const unsigned int*)uncachedGlyphs.constData(), uncachedGlyphs.count());

         if (err == KErrNotSupported || err == KErrInUse) { // Fallback in possibly supported error cases
             iter.Close();
             qWarning("Falling back to default QVGFontGlyphCache");
             return QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);
         }

         for (; err == KErrNone; err = iter.Next()) {
             const unsigned int glyph = iter.GlyphCode();

             const RSgImage& image = iter.Image();
             const TOpenFontCharMetrics& metrics = iter.Metrics();

             TRect glyphBounds;
             metrics.GetHorizBounds(glyphBounds);
             VGImage vgImage = sgImageToVGImage(0, image);
             VGfloat origin[2];
             VGfloat escapement[2];
             origin[0] = -glyphBounds.iTl.iX;
             origin[1] = glyphBounds.iBr.iY;
             escapement[0] = 0;
             escapement[1] = 0;
             vgSetGlyphToImage(font, glyph, vgImage, origin, escapement);
             vgDestroyImage(vgImage);

             // Add to cache
             if (glyph < 256)
                 cachedGlyphsMask[glyph / 32] |= (1 << (glyph % 32));
             else
                 cachedGlyphs.insert(glyph);
         }
         iter.Close();

         if (err == KErrNoMemory || err == KErrNoGraphicsMemory)
             qWarning("Not enough memory to cache glyph");
         else if (err != KErrNotFound)
             qWarning("Received error %d from glyph cache", err);
     }
 #else
     QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);
 #endif
 }

 QT_END_NAMESPACE
	/****************************************************************************
	**
	** 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 "qpixmapdata_vg_p.h"
	#include "qvgfontglyphcache_p.h"
	#include <QtGui/private/qnativeimagehandleprovider_p.h>
	#include <private/qt_s60_p.h>

	#include <fbs.h>

	#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
	# include <sgresource/sgimage.h>
	# ifdef SYMBIAN_FBSERV_GLYPHDATA // defined in fbs.h
	# define QT_SYMBIAN_HARDWARE_GLYPH_CACHE
	# include <graphics/fbsglyphdataiterator.h>
	# include <private/qfontengine_s60_p.h>
	# endif
	#endif

	QT_BEGIN_NAMESPACE

	typedef VGImage (*_vgCreateEGLImageTargetKHR)(VGeglImageKHR);
	static _vgCreateEGLImageTargetKHR qt_vgCreateEGLImageTargetKHR = 0;

	namespace QVG
	{
	VGImage vgCreateEGLImageTargetKHR(VGeglImageKHR eglImage);
	}

	VGImage QVG::vgCreateEGLImageTargetKHR(VGeglImageKHR eglImage)
	{
	if (!qt_vgCreateEGLImageTargetKHR && QEgl::hasExtension("EGL_KHR_image"))
	qt_vgCreateEGLImageTargetKHR = (_vgCreateEGLImageTargetKHR) eglGetProcAddress("vgCreateEGLImageTargetKHR");

	return qt_vgCreateEGLImageTargetKHR ? qt_vgCreateEGLImageTargetKHR(eglImage) : 0;
	}

	extern int qt_vg_pixmap_serial;

	#ifdef QT_SYMBIAN_SUPPORTS_SGIMAGE
	static VGImage sgImageToVGImage(QEglContext *context, const RSgImage &sgImage)
	{
	// when "0" used as argument then
	// default display, context are used
	if (!context)
	context = qt_vg_create_context(0, QInternal::Pixmap);

	VGImage vgImage = VG_INVALID_HANDLE;

	if (sgImage.IsNull())
	return vgImage;

	const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
	EGLImageKHR eglImage = QEgl::eglCreateImageKHR(QEgl::display(),
	EGL_NO_CONTEXT,
	EGL_NATIVE_PIXMAP_KHR,
	(EGLClientBuffer)&sgImage,
	(EGLint*)KEglImageAttribs);

	if (!eglImage)
	return vgImage;

	vgImage = QVG::vgCreateEGLImageTargetKHR(eglImage);

	QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
	return vgImage;
	}
	#endif

	void QVGPixmapData::cleanup()
	{
	is_null = w = h = 0;
	recreate = false;
	source = QVolatileImage();
	}

	bool QVGPixmapData::initFromNativeImageHandle(void *handle, const QString &type)
	{
	if (type == QLatin1String("RSgImage")) {
	fromNativeType(handle, QPixmapData::SgImage);
	return true;
	} else if (type == QLatin1String("CFbsBitmap")) {
	fromNativeType(handle, QPixmapData::FbsBitmap);
	return true;
	}
	return false;
	}

	void QVGPixmapData::createFromNativeImageHandleProvider()
	{
	void *handle = 0;
	QString type;
	nativeImageHandleProvider->get(&handle, &type);
	if (handle) {
	if (initFromNativeImageHandle(handle, type)) {
	nativeImageHandle = handle;
	nativeImageType = type;
	} else {
	qWarning("QVGPixmapData: Unknown native image type '%s'", qPrintable(type));
	}
	} else {
	qWarning("QVGPixmapData: Native handle is null");
	}
	}

	void QVGPixmapData::releaseNativeImageHandle()
	{
	if (nativeImageHandleProvider && nativeImageHandle) {
	nativeImageHandleProvider->release(nativeImageHandle, nativeImageType);
	nativeImageHandle = 0;
	nativeImageType = QString();
	}
	}

	static inline bool conversionLessFormat(QImage::Format format)
	{
	switch (format) {
	case QImage::Format_RGB16: // EColor64K
	case QImage::Format_RGB32: // EColor16MU
	case QImage::Format_ARGB32: // EColor16MA
	case QImage::Format_ARGB32_Premultiplied: // EColor16MAP
	case QImage::Format_Indexed8: // EGray256, EColor256
	return true;
	default:
	return false;
	}
	}

	void QVGPixmapData::fromNativeType(void* pixmap, NativeType type)
	{
	if (type == QPixmapData::SgImage && pixmap) {
	#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
	RSgImage sgImage = reinterpret_cast<RSgImage>(pixmap);
	destroyImages();
	prevSize = QSize();

	vgImage = sgImageToVGImage(context, *sgImage);
	if (vgImage != VG_INVALID_HANDLE) {
	w = vgGetParameteri(vgImage, VG_IMAGE_WIDTH);
	h = vgGetParameteri(vgImage, VG_IMAGE_HEIGHT);
	d = 32; // We always use ARGB_Premultiplied for VG pixmaps.
	}

	is_null = (w <= 0 \|\| h <= 0);
	source = QVolatileImage(); // readback will be done later, only when needed
	recreate = false;
	prevSize = QSize(w, h);
	updateSerial();
	#endif
	} else if (type == QPixmapData::FbsBitmap && pixmap) {
	CFbsBitmap bitmap = reinterpret_cast<CFbsBitmap >(pixmap);
	QSize size(bitmap->SizeInPixels().iWidth, bitmap->SizeInPixels().iHeight);
	resize(size.width(), size.height());
	source = QVolatileImage(bitmap); // duplicates only, if possible
	if (source.isNull())
	return;
	if (!conversionLessFormat(source.format())) {
	// Here we may need to copy if the formats do not match.
	// (e.g. for display modes other than EColor16MAP and EColor16MU)
	source.beginDataAccess();
	QImage::Format format = idealFormat(&source.imageRef(), Qt::AutoColor);
	source.endDataAccess(true);
	source.ensureFormat(format);
	}
	recreate = true;
	} else if (type == QPixmapData::VolatileImage && pixmap) {
	QVolatileImage img = static_cast<QVolatileImage >(pixmap);
	resize(img->width(), img->height());
	source = *img;
	recreate = true;
	} else if (type == QPixmapData::NativeImageHandleProvider && pixmap) {
	destroyImages();
	nativeImageHandleProvider = static_cast<QNativeImageHandleProvider *>(pixmap);
	// Cannot defer the retrieval, we need at least the size right away.
	createFromNativeImageHandleProvider();
	}
	}

	void* QVGPixmapData::toNativeType(NativeType type)
	{
	if (type == QPixmapData::SgImage) {
	#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
	toVGImage();

	if (!isValid() \|\| vgImage == VG_INVALID_HANDLE)
	return 0;

	TInt err = 0;

	RSgDriver driver;
	err = driver.Open();
	if (err != KErrNone)
	return 0;

	TSgImageInfo sgInfo;
	sgInfo.iPixelFormat = EUidPixelFormatARGB_8888_PRE;
	sgInfo.iSizeInPixels.SetSize(w, h);
	sgInfo.iUsage = ESgUsageBitOpenVgImage \| ESgUsageBitOpenVgSurface;

	QScopedPointer<RSgImage> sgImage(new RSgImage());
	err = sgImage->Create(sgInfo, NULL, NULL);
	if (err != KErrNone) {
	driver.Close();
	return 0;
	}

	const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
	EGLImageKHR eglImage = QEgl::eglCreateImageKHR(QEgl::display(),
	EGL_NO_CONTEXT,
	EGL_NATIVE_PIXMAP_KHR,
	(EGLClientBuffer)sgImage.data(),
	(EGLint*)KEglImageAttribs);
	if (!eglImage \|\| eglGetError() != EGL_SUCCESS) {
	sgImage->Close();
	driver.Close();
	return 0;
	}

	VGImage dstVgImage = QVG::vgCreateEGLImageTargetKHR(eglImage);
	if (!dstVgImage \|\| vgGetError() != VG_NO_ERROR) {
	QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
	sgImage->Close();
	driver.Close();
	return 0;
	}

	vgCopyImage(dstVgImage, 0, 0,
	vgImage, 0, 0,
	w, h, VG_FALSE);

	if (vgGetError() != VG_NO_ERROR) {
	sgImage->Close();
	sgImage.reset();
	}

	// release stuff
	vgDestroyImage(dstVgImage);
	QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
	driver.Close();
	return reinterpret_cast<void*>(sgImage.take());
	#endif
	} else if (type == QPixmapData::FbsBitmap && isValid()) {
	ensureReadback(true);
	if (source.isNull()) {
	source = QVolatileImage(w, h, sourceFormat());
	}
	// Just duplicate the bitmap handle, no data copying happens.
	return source.duplicateNativeImage();
	}
	return 0;
	}

	QVolatileImage QVGPixmapData::toVolatileImage() const
	{
	return source;
	}

	QSymbianVGFontGlyphCache::QSymbianVGFontGlyphCache() : QVGFontGlyphCache()
	{
	#ifdef QT_SYMBIAN_HARDWARE_GLYPH_CACHE
	invertedGlyphs = true;
	#endif
	}

	void QSymbianVGFontGlyphCache::cacheGlyphs(QVGPaintEnginePrivate *d,
	QFontEngine *fontEngine,
	const glyph_t *g, int count)
	{
	#ifdef QT_SYMBIAN_HARDWARE_GLYPH_CACHE
	QFontEngineS60 s60fontEngine = static_cast<QFontEngineS60>(fontEngine);
	if (s60fontEngine->m_activeFont->TypeUid() != KCFbsFontUid)
	return QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);

	QVector<glyph_t> uncachedGlyphs;
	while (count-- > 0) {
	// Skip this glyph if we have already cached it before.
	glyph_t glyph = *g++;
	if (((glyph < 256) && ((cachedGlyphsMask[glyph / 32] & (1 << (glyph % 32))) != 0))
	\|\| cachedGlyphs.contains(glyph))
	continue;
	if (!uncachedGlyphs.contains(glyph))
	uncachedGlyphs.append(glyph);
	}

	if (!uncachedGlyphs.isEmpty()) {
	CFbsFont cfbsFont = static_cast<CFbsFont >(s60fontEngine->m_activeFont);
	RFbsGlyphDataIterator iter;

	int err = iter.Open(cfbsFont, (const unsigned int)uncachedGlyphs.constData(), uncachedGlyphs.count());

	if (err == KErrNotSupported \|\| err == KErrInUse) { // Fallback in possibly supported error cases
	iter.Close();
	qWarning("Falling back to default QVGFontGlyphCache");
	return QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);
	}

	for (; err == KErrNone; err = iter.Next()) {
	const unsigned int glyph = iter.GlyphCode();

	const RSgImage& image = iter.Image();
	const TOpenFontCharMetrics& metrics = iter.Metrics();

	TRect glyphBounds;
	metrics.GetHorizBounds(glyphBounds);
	VGImage vgImage = sgImageToVGImage(0, image);
	VGfloat origin[2];
	VGfloat escapement[2];
	origin[0] = -glyphBounds.iTl.iX;
	origin[1] = glyphBounds.iBr.iY;
	escapement[0] = 0;
	escapement[1] = 0;
	vgSetGlyphToImage(font, glyph, vgImage, origin, escapement);
	vgDestroyImage(vgImage);

	// Add to cache
	if (glyph < 256)
	cachedGlyphsMask[glyph / 32] \|= (1 << (glyph % 32));
	else
	cachedGlyphs.insert(glyph);
	}
	iter.Close();

	if (err == KErrNoMemory \|\| err == KErrNoGraphicsMemory)
	qWarning("Not enough memory to cache glyph");
	else if (err != KErrNotFound)
	qWarning("Received error %d from glyph cache", err);
	}
	#else
	QVGFontGlyphCache::cacheGlyphs(d, fontEngine, g, count);
	#endif
	}

	QT_END_NAMESPACE