Merge branch '4.7-upstream' into 4.7-doc

1 files changed, 163 insertions, 0 deletions

diff --git a/tools/qmeegographicssystemhelper/qmeegolivepixmap.cpp b/tools/qmeegographicssystemhelper/qmeegolivepixmap.cpp
new file mode 100644
index 0000000..2a1c04b
--- /dev/null
+++ b/tools/qmeegographicssystemhelper/qmeegolivepixmap.cpp
@@ -0,0 +1,163 @@
+/****************************************************************************
+**
+** 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 plugins 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 "qmeegolivepixmap.h"
+#include <private/qimage_p.h>
+#include <private/qpixmap_raster_p.h>
+#include "qmeegolivepixmap_p.h"
+#include "qmeegoliveimage_p.h"
+#include <QSharedMemory>
+
+/* QMeeGoLivePixmapPrivate */
+
+QMeeGoLivePixmapPrivate::QMeeGoLivePixmapPrivate() : shm(0), shmSerial(0), owns(true), parentImage(0)
+{
+}
+
+void QMeeGoLivePixmapPrivate::copyBackFrom(const void *raw)
+{
+    Q_Q(QMeeGoLivePixmap);
+    
+    q->detach();
+    shm->lock();
+    uchar *dest = ((uchar *) shm->data()) + (2 * sizeof(int));
+    memcpy(dest, raw, q->width() * q->height() * 4);
+    shm->unlock();
+}
+
+QMeeGoLivePixmapPrivate::~QMeeGoLivePixmapPrivate()
+{
+    Q_Q(QMeeGoLivePixmap);
+    
+    if (parentImage)
+        parentImage->d_ptr->detachPixmap(q);
+
+    if (shm)
+        shm->detach();
+        
+    if (owns)
+        delete shm;        
+}
+
+/* QMeeGoLivePixmap */
+
+QMeeGoLivePixmap::QMeeGoLivePixmap(QPixmapData *p) : QPixmap(p), d_ptr(new QMeeGoLivePixmapPrivate())
+{
+    Q_D(QMeeGoLivePixmap);
+    d->q_ptr = this;
+}
+
+QMeeGoLivePixmap* QMeeGoLivePixmap::fromLiveImage(QMeeGoLiveImage *liveImage)
+{
+    static int counter = 100;
+    QSharedMemory *shm = NULL;
+    uchar* imgData = NULL;
+    int *header = NULL;
+    int w = liveImage->width();
+    int h = liveImage->height();
+    
+    counter++;
+    shm = new QSharedMemory(QString(QLatin1String("QMeeGoLivePixmap%1")).arg(counter));
+    shm->create((w * h * 4) + 2 * sizeof(int)); // +2 to store width & height
+    shm->attach();
+    
+    imgData = ((uchar *) shm->data()) + (2 * sizeof(int));
+    header = (int *) shm->data();
+    
+    header[0] = w;
+    header[1] = h;
+    
+    QImage img(imgData, w, h, QImage::Format_ARGB32_Premultiplied);
+    
+    QPixmapData *pmd = new QRasterPixmapData(QPixmapData::PixmapType);
+    pmd->fromImage(img, Qt::NoOpaqueDetection);
+    
+    QMeeGoLivePixmap *livePixmap = new QMeeGoLivePixmap(pmd);
+    livePixmap->d_ptr->shm = shm;
+    livePixmap->d_ptr->owns = true;
+    livePixmap->d_ptr->shmSerial = counter;
+    livePixmap->d_ptr->parentImage = liveImage;
+    
+    liveImage->d_ptr->attachPixmap(livePixmap);
+
+    return livePixmap;    
+}
+
+QMeeGoLivePixmap* QMeeGoLivePixmap::fromHandle(Qt::HANDLE handle)
+{
+    QSharedMemory *shm = NULL;
+    int *header;
+    int width;
+    int height;
+    uchar* imgData;
+    
+    shm = new QSharedMemory(QString(QLatin1String("QMeeGoLivePixmap%1")).arg(handle));
+    shm->attach();
+    
+    shm->lock();
+    header = (int *) shm->data();
+    width = header[0];
+    height = header[1];
+    shm->unlock();
+    
+    imgData = ((uchar *) shm->data()) + (2 * sizeof(int));
+    QImage img(imgData, width, height, QImage::Format_ARGB32_Premultiplied);
+    
+    QPixmapData *pmd = new QRasterPixmapData(QPixmapData::PixmapType);
+    pmd->fromImage(img, Qt::NoOpaqueDetection);
+
+    QMeeGoLivePixmap *livePixmap = new QMeeGoLivePixmap(pmd);
+    livePixmap->d_ptr->shm = shm;
+    livePixmap->d_ptr->owns = false;
+    livePixmap->d_ptr->shmSerial = handle;
+
+    return livePixmap;
+}
+
+QMeeGoLivePixmap::~QMeeGoLivePixmap()
+{
+}
+
+Qt::HANDLE QMeeGoLivePixmap::handle()
+{
+    Q_D(QMeeGoLivePixmap);
+    return d->shmSerial;
+}