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author | Laszlo Agocs <laszlo.p.agocs@nokia.com> | 2011-02-28 11:55:33 (GMT) |
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committer | Laszlo Agocs <laszlo.p.agocs@nokia.com> | 2011-02-28 11:55:33 (GMT) |
commit | ae6bc1d824f5ae24a259be0c68241873cb96739f (patch) | |
tree | 3c6780fa6c2101ff77ce60a49f565fee84de7e48 /src/gui/image/qvolatileimagedata.cpp | |
parent | 0db888489e613ca5c5c57c46e1043e1823fcd0d8 (diff) | |
download | Qt-ae6bc1d824f5ae24a259be0c68241873cb96739f.zip Qt-ae6bc1d824f5ae24a259be0c68241873cb96739f.tar.gz Qt-ae6bc1d824f5ae24a259be0c68241873cb96739f.tar.bz2 |
Changed QPixmap VG backend to use CFbsBitmap on Symbian.
Similarly to QS60PixmapData, that is used on raster, QVGPixmapData
is also backed by a CFbsBitmap from now on (at least when it makes
sense to do so). This allows copy-less bitmap handle duplication in
from- and toSymbianCFbsBitmap() in case of certain image formats,
reduces local heap usage and improves performance with the s60 style
due to a reduced number of pixel data copies.
Task-number: QT-2505
Reviewed-by: Jason Barron
Reviewed-by: Jani Hautakangas
Diffstat (limited to 'src/gui/image/qvolatileimagedata.cpp')
-rw-r--r-- | src/gui/image/qvolatileimagedata.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/src/gui/image/qvolatileimagedata.cpp b/src/gui/image/qvolatileimagedata.cpp new file mode 100644 index 0000000..51b5995 --- /dev/null +++ b/src/gui/image/qvolatileimagedata.cpp @@ -0,0 +1,113 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qvolatileimagedata_p.h" +#include <QtGui/qpaintengine.h> + +QT_BEGIN_NAMESPACE + +QVolatileImageData::QVolatileImageData() + : pengine(0) +{ +} + +QVolatileImageData::QVolatileImageData(int w, int h, QImage::Format format) + : pengine(0) +{ + image = QImage(w, h, format); +} + +QVolatileImageData::QVolatileImageData(const QImage &sourceImage) + : pengine(0) +{ + image = sourceImage; +} + +QVolatileImageData::QVolatileImageData(void *, void *) + : pengine(0) +{ + // Not supported. +} + +QVolatileImageData::QVolatileImageData(const QVolatileImageData &other) +{ + image = other.image; + // The detach is not mandatory here but we do it nonetheless in order to + // keep the behavior consistent with other platforms. + image.detach(); + pengine = 0; +} + +QVolatileImageData::~QVolatileImageData() +{ + delete pengine; +} + +void QVolatileImageData::beginDataAccess() const +{ + // nothing to do here +} + +void QVolatileImageData::endDataAccess(bool readOnly) const +{ + Q_UNUSED(readOnly); + // nothing to do here +} + +bool QVolatileImageData::ensureFormat(QImage::Format format) +{ + if (image.format() != format) { + image = image.convertToFormat(format); + } + return true; +} + +void *QVolatileImageData::duplicateNativeImage() const +{ + return 0; +} + +void QVolatileImageData::ensureImage() +{ + // nothing to do here +} + +QT_END_NAMESPACE |