--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbpaintdevice.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,221 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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 "qdirectfbscreen.h"
+#include "qdirectfbpaintdevice.h"
+#include "qdirectfbpaintengine.h"
+
+#ifndef QT_NO_QWS_DIRECTFB
+
+QT_BEGIN_NAMESPACE
+
+QDirectFBPaintDevice::QDirectFBPaintDevice(QDirectFBScreen *scr)
+    : QCustomRasterPaintDevice(0), dfbSurface(0), screen(scr),
+      bpl(-1), lockFlgs(DFBSurfaceLockFlags(0)), mem(0), engine(0), imageFormat(QImage::Format_Invalid)
+{
+#ifdef QT_DIRECTFB_SUBSURFACE
+    subSurface = 0;
+    syncPending = false;
+#endif
+}
+
+QDirectFBPaintDevice::~QDirectFBPaintDevice()
+{
+    if (QDirectFBScreen::instance()) {
+        unlockSurface();
+#ifdef QT_DIRECTFB_SUBSURFACE
+        releaseSubSurface();
+#endif
+        if (dfbSurface) {
+            screen->releaseDFBSurface(dfbSurface);
+        }
+    }
+    delete engine;
+}
+
+IDirectFBSurface *QDirectFBPaintDevice::directFBSurface() const
+{
+    return dfbSurface;
+}
+
+bool QDirectFBPaintDevice::lockSurface(DFBSurfaceLockFlags lockFlags)
+{
+    if (lockFlgs && (lockFlags & ~lockFlgs))
+        unlockSurface();
+    if (!mem) {
+        Q_ASSERT(dfbSurface);
+#ifdef QT_DIRECTFB_SUBSURFACE
+        if (!subSurface) {
+            DFBResult result;
+            subSurface = screen->getSubSurface(dfbSurface, QRect(), QDirectFBScreen::TrackSurface, &result);
+            if (result != DFB_OK || !subSurface) {
+                DirectFBError("Couldn't create sub surface", result);
+                return false;
+            }
+        }
+        IDirectFBSurface *surface = subSurface;
+#else
+        IDirectFBSurface *surface = dfbSurface;
+#endif
+        Q_ASSERT(surface);
+        mem = QDirectFBScreen::lockSurface(surface, lockFlags, &bpl);
+        lockFlgs = lockFlags;
+        Q_ASSERT(mem);
+        Q_ASSERT(bpl > 0);
+        const QSize s = size();
+        lockedImage = QImage(mem, s.width(), s.height(), bpl,
+                             QDirectFBScreen::getImageFormat(dfbSurface));
+        return true;
+    }
+#ifdef QT_DIRECTFB_SUBSURFACE
+    if (syncPending) {
+        syncPending = false;
+        screen->waitIdle();
+    }
+#endif
+    return false;
+}
+
+void QDirectFBPaintDevice::unlockSurface()
+{
+    if (QDirectFBScreen::instance() && lockFlgs) {
+#ifdef QT_DIRECTFB_SUBSURFACE
+        IDirectFBSurface *surface = subSurface;
+#else
+        IDirectFBSurface *surface = dfbSurface;
+#endif
+        if (surface) {
+            surface->Unlock(surface);
+            lockFlgs = static_cast<DFBSurfaceLockFlags>(0);
+            mem = 0;
+        }
+    }
+}
+
+void *QDirectFBPaintDevice::memory() const
+{
+    return mem;
+}
+
+QImage::Format QDirectFBPaintDevice::format() const
+{
+    return imageFormat;
+}
+
+int QDirectFBPaintDevice::bytesPerLine() const
+{
+    Q_ASSERT(!mem || bpl != -1);
+    return bpl;
+}
+
+QSize QDirectFBPaintDevice::size() const
+{
+    int w, h;
+    dfbSurface->GetSize(dfbSurface, &w, &h);
+    return QSize(w, h);
+}
+
+int QDirectFBPaintDevice::metric(QPaintDevice::PaintDeviceMetric metric) const
+{
+    if (!dfbSurface)
+        return 0;
+
+    switch (metric) {
+    case QPaintDevice::PdmWidth:
+    case QPaintDevice::PdmHeight:
+        return (metric == PdmWidth ? size().width() : size().height());
+    case QPaintDevice::PdmWidthMM:
+        return (size().width() * 1000) / dotsPerMeterX();
+    case QPaintDevice::PdmHeightMM:
+        return (size().height() * 1000) / dotsPerMeterY();
+    case QPaintDevice::PdmPhysicalDpiX:
+    case QPaintDevice::PdmDpiX:
+        return (dotsPerMeterX() * 254) / 10000; // 0.0254 meters-per-inch
+    case QPaintDevice::PdmPhysicalDpiY:
+    case QPaintDevice::PdmDpiY:
+        return (dotsPerMeterY() * 254) / 10000; // 0.0254 meters-per-inch
+    case QPaintDevice::PdmDepth:
+        return QDirectFBScreen::depth(imageFormat);
+    case QPaintDevice::PdmNumColors: {
+        if (!lockedImage.isNull())
+            return lockedImage.numColors();
+
+        DFBResult result;
+        IDirectFBPalette *palette = 0;
+        unsigned int numColors = 0;
+
+        result = dfbSurface->GetPalette(dfbSurface, &palette);
+        if ((result != DFB_OK) || !palette)
+            return 0;
+
+        result = palette->GetSize(palette, &numColors);
+        palette->Release(palette);
+        if (result != DFB_OK)
+            return 0;
+
+        return numColors;
+    }
+    default:
+        qCritical("QDirectFBPaintDevice::metric(): Unhandled metric!");
+        return 0;
+    }
+}
+
+QPaintEngine *QDirectFBPaintDevice::paintEngine() const
+{
+    return engine;
+}
+
+#ifdef QT_DIRECTFB_SUBSURFACE
+void QDirectFBPaintDevice::releaseSubSurface()
+{
+    Q_ASSERT(QDirectFBScreen::instance());
+    if (subSurface) {
+        unlockSurface();
+        screen->releaseDFBSurface(subSurface);
+        subSurface = 0;
+    }
+}
+#endif
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_QWS_DIRECTFB