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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDIRECTFBSCREEN_H
#define QDIRECTFBSCREEN_H
#include <QtGui/qscreen_qws.h>
#include <directfb.h>
QT_BEGIN_HEADER
QT_MODULE(Gui)
#define Q_DIRECTFB_VERSION ((DIRECTFB_MAJOR_VERSION << 16) | (DIRECTFB_MINOR_VERION << 8) | DIRECTFB_MICRO_VERSION)
class QDirectFBScreenPrivate;
class Q_GUI_EXPORT QDirectFBScreen : public QScreen
{
public:
QDirectFBScreen(int display_id);
~QDirectFBScreen();
enum DirectFBFlag {
NoFlags = 0x00,
VideoOnly = 0x01,
SystemOnly = 0x02,
IgnoreSystemClip = 0x04,
BoundingRectFlip = 0x08
};
Q_DECLARE_FLAGS(DirectFBFlags, DirectFBFlag);
DirectFBFlags directFBFlags() const;
bool connect(const QString &displaySpec);
void disconnect();
bool initDevice();
void shutdownDevice();
void exposeRegion(QRegion r, int changing);
void blit(const QImage &img, const QPoint &topLeft, const QRegion ®ion);
void scroll(const QRegion ®ion, const QPoint &offset);
void solidFill(const QColor &color, const QRegion ®ion);
void setMode(int width, int height, int depth);
void blank(bool on);
QWSWindowSurface *createSurface(QWidget *widget) const;
QWSWindowSurface *createSurface(const QString &key) const;
static inline QDirectFBScreen *instance() {
QScreen *inst = QScreen::instance();
Q_ASSERT(!inst || inst->classId() == QScreen::DirectFBClass);
return static_cast<QDirectFBScreen*>(inst);
}
IDirectFB *dfb();
IDirectFBSurface *dfbSurface();
#ifndef QT_NO_DIRECTFB_LAYER
IDirectFBDisplayLayer *dfbDisplayLayer();
#endif
// Track surface creation/release so we can release all on exit
enum SurfaceCreationOption {
DontTrackSurface = 0,
TrackSurface = 1
};
Q_DECLARE_FLAGS(SurfaceCreationOptions, SurfaceCreationOption);
IDirectFBSurface *createDFBSurface(const QImage &image,
SurfaceCreationOptions options);
IDirectFBSurface *createDFBSurface(const QSize &size,
QImage::Format format,
SurfaceCreationOptions options);
IDirectFBSurface *copyDFBSurface(IDirectFBSurface *src,
QImage::Format format,
SurfaceCreationOptions options);
IDirectFBSurface *copyToDFBSurface(const QImage &image,
QImage::Format format,
SurfaceCreationOptions options);
void releaseDFBSurface(IDirectFBSurface *surface);
static int depth(DFBSurfacePixelFormat format);
static DFBSurfacePixelFormat getSurfacePixelFormat(QImage::Format format);
static DFBSurfaceDescription getSurfaceDescription(const QImage &image);
static DFBSurfaceDescription getSurfaceDescription(const uint *buffer,
int length);
static QImage::Format getImageFormat(IDirectFBSurface *surface);
static bool initSurfaceDescriptionPixelFormat(DFBSurfaceDescription *description, QImage::Format format);
static inline bool isPremultiplied(QImage::Format format);
static inline bool hasAlpha(DFBSurfacePixelFormat format);
static inline bool hasAlpha(IDirectFBSurface *surface);
QImage::Format alphaPixmapFormat() const;
#ifndef QT_NO_DIRECTFB_PALETTE
static void setSurfaceColorTable(IDirectFBSurface *surface,
const QImage &image);
#endif
static uchar *lockSurface(IDirectFBSurface *surface, uint flags, int *bpl = 0);
private:
IDirectFBSurface *createDFBSurface(DFBSurfaceDescription desc,
SurfaceCreationOptions options);
void compose(const QRegion &r);
void blit(IDirectFBSurface *src, const QPoint &topLeft,
const QRegion ®ion);
QDirectFBScreenPrivate *d_ptr;
friend class SurfaceCache;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QDirectFBScreen::SurfaceCreationOptions);
Q_DECLARE_OPERATORS_FOR_FLAGS(QDirectFBScreen::DirectFBFlags);
inline bool QDirectFBScreen::isPremultiplied(QImage::Format format)
{
switch (format) {
case QImage::Format_ARGB32_Premultiplied:
case QImage::Format_ARGB8565_Premultiplied:
case QImage::Format_ARGB6666_Premultiplied:
case QImage::Format_ARGB8555_Premultiplied:
case QImage::Format_ARGB4444_Premultiplied:
return true;
default:
break;
}
return false;
}
inline bool QDirectFBScreen::hasAlpha(DFBSurfacePixelFormat format)
{
switch (format) {
case DSPF_ARGB1555:
case DSPF_ARGB:
case DSPF_LUT8:
case DSPF_AiRGB:
case DSPF_A1:
case DSPF_ARGB2554:
case DSPF_ARGB4444:
case DSPF_AYUV:
case DSPF_A4:
case DSPF_ARGB1666:
case DSPF_ARGB6666:
case DSPF_LUT2:
return true;
default:
return false;
}
}
inline bool QDirectFBScreen::hasAlpha(IDirectFBSurface *surface)
{
Q_ASSERT(surface);
DFBSurfacePixelFormat format;
surface->GetPixelFormat(surface, &format);
return QDirectFBScreen::hasAlpha(format);
}
QT_END_HEADER
#endif // QDIRECTFBSCREEN_H
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