qtmobility/src/multimedia/video/qimagevideobuffer.cpp
changeset 14 6fbed849b4f4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/qtmobility/src/multimedia/video/qimagevideobuffer.cpp	Wed Jun 23 19:08:38 2010 +0300
@@ -0,0 +1,106 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 "qimagevideobuffer_p.h"
+
+#include "qabstractvideobuffer_p.h"
+
+#include <qimage.h>
+#include <qvariant.h>
+
+QT_BEGIN_NAMESPACE
+
+class QImageVideoBufferPrivate : public QAbstractVideoBufferPrivate
+{
+public:
+    QImageVideoBufferPrivate()
+        : mapMode(QAbstractVideoBuffer::NotMapped)
+    {
+    }
+
+    QAbstractVideoBuffer::MapMode mapMode;
+    QImage image;
+};
+
+QImageVideoBuffer::QImageVideoBuffer(const QImage &image)
+    : QAbstractVideoBuffer(*new QImageVideoBufferPrivate, NoHandle)
+{
+    Q_D(QImageVideoBuffer);
+
+    d->image = image;
+}
+
+QImageVideoBuffer::~QImageVideoBuffer()
+{
+}
+
+QAbstractVideoBuffer::MapMode QImageVideoBuffer::mapMode() const
+{
+    return d_func()->mapMode;
+}
+
+uchar *QImageVideoBuffer::map(MapMode mode, int *numBytes, int *bytesPerLine)
+{
+    Q_D(QImageVideoBuffer);
+
+    if (d->mapMode == NotMapped && d->image.bits() && mode != NotMapped) {
+        d->mapMode = mode;
+
+        if (numBytes)
+            *numBytes = d->image.byteCount();
+
+        if (bytesPerLine)
+            *bytesPerLine = d->image.bytesPerLine();
+
+        return d->image.bits();
+    } else {
+        return 0;
+    }
+}
+
+void QImageVideoBuffer::unmap()
+{
+    Q_D(QImageVideoBuffer);
+
+    d->mapMode = NotMapped;
+}
+
+QT_END_NAMESPACE