/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtGui module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/contact-us. ** ** 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, Digia gives you certain additional ** rights. These rights are described in the Digia Qt LGPL Exception ** version 1.1, 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. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qscreentransformed_qws.h" #ifndef QT_NO_QWS_TRANSFORMED #include #include #include #include #include #include #include #include #include #include #include #include #include #include QT_BEGIN_NAMESPACE //#define QT_REGION_DEBUG #ifdef QT_REGION_DEBUG #include #endif class QTransformedScreenPrivate { public: QTransformedScreenPrivate(QTransformedScreen *parent); void configure(); QTransformedScreen::Transformation transformation; #ifdef QT_QWS_DEPTH_GENERIC bool doGenericColors; #endif QTransformedScreen *q; }; QTransformedScreenPrivate::QTransformedScreenPrivate(QTransformedScreen *parent) : transformation(QTransformedScreen::None), #ifdef QT_QWS_DEPTH_GENERIC doGenericColors(false), #endif q(parent) { } extern "C" #ifndef QT_BUILD_GUI_LIB Q_DECL_EXPORT #endif void qws_setScreenTransformation(QScreen *that, int t) { QTransformedScreen *tscreen = static_cast(that); tscreen->setTransformation((QTransformedScreen::Transformation)t); } // --------------------------------------------------------------------------- // Transformed Screen // --------------------------------------------------------------------------- /*! \internal \class QTransformedScreen \ingroup qws \brief The QTransformedScreen class implements a screen driver for a transformed screen. Note that this class is only available in \l{Qt for Embedded Linux}. Custom screen drivers can be added by subclassing the QScreenDriverPlugin class, using the QScreenDriverFactory class to dynamically load the driver into the application, but there should only be one screen object per application. Use the QScreen::isTransformed() function to determine if a screen is transformed. The QTransformedScreen class itself provides means of rotating the screen with its setTransformation() function; the transformation() function returns the currently set rotation in terms of the \l Transformation enum (which describes the various available rotation settings). Alternatively, QTransformedScreen provides an implementation of the QScreen::transformOrientation() function, returning the current rotation as an integer value. \sa QScreen, QScreenDriverPlugin, {Running Applications} */ /*! \enum QTransformedScreen::Transformation This enum describes the various rotations a transformed screen can have. \value None No rotation \value Rot90 90 degrees rotation \value Rot180 180 degrees rotation \value Rot270 270 degrees rotation */ /*! \fn bool QTransformedScreen::isTransformed() const \reimp */ /*! Constructs a QTransformedScreen object. The \a displayId argument identifies the Qt for Embedded Linux server to connect to. */ QTransformedScreen::QTransformedScreen(int displayId) : QProxyScreen(displayId, QScreen::TransformedClass) { d_ptr = new QTransformedScreenPrivate(this); d_ptr->transformation = None; #ifdef QT_REGION_DEBUG qDebug() << "QTransformedScreen::QTransformedScreen"; #endif } void QTransformedScreenPrivate::configure() { // ###: works because setTransformation recalculates unconditionally q->setTransformation(transformation); } /*! Destroys the QTransformedScreen object. */ QTransformedScreen::~QTransformedScreen() { delete d_ptr; } static int getDisplayId(const QString &spec) { QRegExp regexp(QLatin1String(":(\\d+)\\b")); if (regexp.lastIndexIn(spec) != -1) { const QString capture = regexp.cap(1); return capture.toInt(); } return 0; } static QTransformedScreen::Transformation filterTransformation(QString &spec) { QRegExp regexp(QLatin1String("\\bRot(\\d+):?\\b"), Qt::CaseInsensitive); if (regexp.indexIn(spec) == -1) return QTransformedScreen::None; const int degrees = regexp.cap(1).toInt(); spec.remove(regexp.pos(0), regexp.matchedLength()); return static_cast(degrees / 90); } /*! \reimp */ bool QTransformedScreen::connect(const QString &displaySpec) { QString dspec = displaySpec.trimmed(); if (dspec.startsWith(QLatin1String("Transformed:"), Qt::CaseInsensitive)) dspec = dspec.mid(QString::fromLatin1("Transformed:").size()); else if (!dspec.compare(QLatin1String("Transformed"), Qt::CaseInsensitive)) dspec = QString(); const QString displayIdSpec = QString::fromLatin1(" :%1").arg(displayId); if (dspec.endsWith(displayIdSpec)) dspec = dspec.left(dspec.size() - displayIdSpec.size()); d_ptr->transformation = filterTransformation(dspec); QString driver = dspec; int colon = driver.indexOf(QLatin1Char(':')); if (colon >= 0) driver.truncate(colon); if (!QScreenDriverFactory::keys().contains(driver, Qt::CaseInsensitive)) if (!dspec.isEmpty()) dspec.prepend(QLatin1Char(':')); const int id = getDisplayId(dspec); QScreen *s = qt_get_screen(id, dspec.toLatin1().constData()); setScreen(s); #ifdef QT_QWS_DEPTH_GENERIC d_ptr->doGenericColors = dspec.contains(QLatin1String("genericcolors")); #endif d_ptr->configure(); // XXX qt_screen = this; return true; } /*! Returns the currently set rotation. \sa setTransformation(), QScreen::transformOrientation() */ QTransformedScreen::Transformation QTransformedScreen::transformation() const { return d_ptr->transformation; } /*! \reimp */ int QTransformedScreen::transformOrientation() const { return (int)d_ptr->transformation; } /*! \reimp */ void QTransformedScreen::exposeRegion(QRegion region, int changing) { if (!data || d_ptr->transformation == None) { QProxyScreen::exposeRegion(region, changing); return; } QScreen::exposeRegion(region, changing); } /*! Rotates this screen object according to the specified \a transformation. \sa transformation() */ void QTransformedScreen::setTransformation(Transformation transformation) { d_ptr->transformation = transformation; QSize size = mapFromDevice(QSize(dw, dh)); w = size.width(); h = size.height(); const QScreen *s = screen(); size = mapFromDevice(QSize(s->physicalWidth(), s->physicalHeight())); physWidth = size.width(); physHeight = size.height(); #ifdef QT_REGION_DEBUG qDebug() << "QTransformedScreen::setTransformation" << transformation << "size" << w << h << "dev size" << dw << dh; #endif } static inline QRect correctNormalized(const QRect &r) { const int x1 = qMin(r.left(), r.right()); const int x2 = qMax(r.left(), r.right()); const int y1 = qMin(r.top(), r.bottom()); const int y2 = qMax(r.top(), r.bottom()); return QRect( QPoint(x1,y1), QPoint(x2,y2) ); } template static inline void blit90(QScreen *screen, const QImage &image, const QRect &rect, const QPoint &topLeft) { const SRC *src = (const SRC*)(image.scanLine(rect.top())) + rect.left(); DST *dest = (DST*)(screen->base() + topLeft.y() * screen->linestep()) + topLeft.x(); qt_memrotate90(src, rect.width(), rect.height(), image.bytesPerLine(), dest, screen->linestep()); } template static inline void blit180(QScreen *screen, const QImage &image, const QRect &rect, const QPoint &topLeft) { const SRC *src = (const SRC*)(image.scanLine(rect.top())) + rect.left(); DST *dest = (DST*)(screen->base() + topLeft.y() * screen->linestep()) + topLeft.x(); qt_memrotate180(src, rect.width(), rect.height(), image.bytesPerLine(), dest, screen->linestep()); } template static inline void blit270(QScreen *screen, const QImage &image, const QRect &rect, const QPoint &topLeft) { const SRC *src = (const SRC *)(image.scanLine(rect.top())) + rect.left(); DST *dest = (DST*)(screen->base() + topLeft.y() * screen->linestep()) + topLeft.x(); qt_memrotate270(src, rect.width(), rect.height(), image.bytesPerLine(), dest, screen->linestep()); } typedef void (*BlitFunc)(QScreen *, const QImage &, const QRect &, const QPoint &); #define SET_BLIT_FUNC(dst, src, rotation, func) \ do { \ switch (rotation) { \ case Rot90: \ func = blit90; \ break; \ case Rot180: \ func = blit180; \ break; \ case Rot270: \ func = blit270; \ break; \ default: \ break; \ } \ } while (0) /*! \reimp */ void QTransformedScreen::blit(const QImage &image, const QPoint &topLeft, const QRegion ®ion) { const Transformation trans = d_ptr->transformation; if (trans == None) { QProxyScreen::blit(image, topLeft, region); return; } const QVector rects = region.rects(); const QRect bound = QRect(0, 0, QScreen::w, QScreen::h) & QRect(topLeft, image.size()); BlitFunc func = 0; #ifdef QT_QWS_DEPTH_GENERIC if (d_ptr->doGenericColors && depth() == 16) { if (image.depth() == 16) SET_BLIT_FUNC(qrgb_generic16, quint16, trans, func); else SET_BLIT_FUNC(qrgb_generic16, quint32, trans, func); } else #endif switch (depth()) { #ifdef QT_QWS_DEPTH_32 case 32: #ifdef QT_QWS_DEPTH_16 if (image.depth() == 16) SET_BLIT_FUNC(quint32, quint16, trans, func); else #endif SET_BLIT_FUNC(quint32, quint32, trans, func); break; #endif #if defined(QT_QWS_DEPTH_24) || defined(QT_QWS_DEPTH18) case 24: case 18: SET_BLIT_FUNC(quint24, quint24, trans, func); break; #endif #if defined(QT_QWS_DEPTH_16) || defined(QT_QWS_DEPTH_15) || defined(QT_QWS_DEPTH_12) case 16: #if defined QT_QWS_ROTATE_BGR if (pixelType() == BGRPixel && image.depth() == 16) { SET_BLIT_FUNC(qbgr565, quint16, trans, func); break; } //fall-through here!!! #endif case 15: #if defined QT_QWS_ROTATE_BGR if (pixelType() == BGRPixel && image.format() == QImage::Format_RGB555) { SET_BLIT_FUNC(qbgr555, qrgb555, trans, func); break; } //fall-through here!!! #endif case 12: if (image.depth() == 16) SET_BLIT_FUNC(quint16, quint16, trans, func); else SET_BLIT_FUNC(quint16, quint32, trans, func); break; #endif #ifdef QT_QWS_DEPTH_8 case 8: if (image.format() == QImage::Format_RGB444) SET_BLIT_FUNC(quint8, qrgb444, trans, func); else if (image.depth() == 16) SET_BLIT_FUNC(quint8, quint16, trans, func); else SET_BLIT_FUNC(quint8, quint32, trans, func); break; #endif default: return; } if (!func) return; QWSDisplay::grab(); for (int i = 0; i < rects.size(); ++i) { const QRect r = rects.at(i) & bound; QPoint dst; switch (trans) { case Rot90: dst = mapToDevice(r.topRight(), QSize(w, h)); break; case Rot180: dst = mapToDevice(r.bottomRight(), QSize(w, h)); break; case Rot270: dst = mapToDevice(r.bottomLeft(), QSize(w, h)); break; default: break; } func(this, image, r.translated(-topLeft), dst); } QWSDisplay::ungrab(); } /*! \reimp */ void QTransformedScreen::solidFill(const QColor &color, const QRegion ®ion) { const QRegion tr = mapToDevice(region, QSize(w,h)); Q_ASSERT(tr.boundingRect() == mapToDevice(region.boundingRect(), QSize(w,h))); #ifdef QT_REGION_DEBUG qDebug() << "QTransformedScreen::solidFill region" << region << "transformed" << tr; #endif QProxyScreen::solidFill(color, tr); } /*! \reimp */ QSize QTransformedScreen::mapToDevice(const QSize &s) const { switch (d_ptr->transformation) { case None: case Rot180: break; case Rot90: case Rot270: return QSize(s.height(), s.width()); break; } return s; } /*! \reimp */ QSize QTransformedScreen::mapFromDevice(const QSize &s) const { switch (d_ptr->transformation) { case None: case Rot180: break; case Rot90: case Rot270: return QSize(s.height(), s.width()); break; } return s; } /*! \reimp */ QPoint QTransformedScreen::mapToDevice(const QPoint &p, const QSize &s) const { QPoint rp(p); switch (d_ptr->transformation) { case None: break; case Rot90: rp.setX(p.y()); rp.setY(s.width() - p.x() - 1); break; case Rot180: rp.setX(s.width() - p.x() - 1); rp.setY(s.height() - p.y() - 1); break; case Rot270: rp.setX(s.height() - p.y() - 1); rp.setY(p.x()); break; } return rp; } /*! \reimp */ QPoint QTransformedScreen::mapFromDevice(const QPoint &p, const QSize &s) const { QPoint rp(p); switch (d_ptr->transformation) { case None: break; case Rot90: rp.setX(s.height() - p.y() - 1); rp.setY(p.x()); break; case Rot180: rp.setX(s.width() - p.x() - 1); rp.setY(s.height() - p.y() - 1); break; case Rot270: rp.setX(p.y()); rp.setY(s.width() - p.x() - 1); break; } return rp; } /*! \reimp */ QRect QTransformedScreen::mapToDevice(const QRect &r, const QSize &s) const { if (r.isNull()) return QRect(); QRect tr; switch (d_ptr->transformation) { case None: tr = r; break; case Rot90: tr.setCoords(r.y(), s.width() - r.x() - 1, r.bottom(), s.width() - r.right() - 1); break; case Rot180: tr.setCoords(s.width() - r.x() - 1, s.height() - r.y() - 1, s.width() - r.right() - 1, s.height() - r.bottom() - 1); break; case Rot270: tr.setCoords(s.height() - r.y() - 1, r.x(), s.height() - r.bottom() - 1, r.right()); break; } return correctNormalized(tr); } /*! \reimp */ QRect QTransformedScreen::mapFromDevice(const QRect &r, const QSize &s) const { if (r.isNull()) return QRect(); QRect tr; switch (d_ptr->transformation) { case None: tr = r; break; case Rot90: tr.setCoords(s.height() - r.y() - 1, r.x(), s.height() - r.bottom() - 1, r.right()); break; case Rot180: tr.setCoords(s.width() - r.x() - 1, s.height() - r.y() - 1, s.width() - r.right() - 1, s.height() - r.bottom() - 1); break; case Rot270: tr.setCoords(r.y(), s.width() - r.x() - 1, r.bottom(), s.width() - r.right() - 1); break; } return correctNormalized(tr); } /*! \reimp */ QRegion QTransformedScreen::mapToDevice(const QRegion &rgn, const QSize &s) const { if (d_ptr->transformation == None) return QProxyScreen::mapToDevice(rgn, s); #ifdef QT_REGION_DEBUG qDebug() << "mapToDevice size" << s << "rgn: " << rgn; #endif QRect tr; QRegion trgn; QVector a = rgn.rects(); const QRect *r = a.data(); int w = s.width(); int h = s.height(); int size = a.size(); switch (d_ptr->transformation) { case None: break; case Rot90: for (int i = 0; i < size; i++, r++) { tr.setCoords(r->y(), w - r->x() - 1, r->bottom(), w - r->right() - 1); trgn |= correctNormalized(tr); } break; case Rot180: for (int i = 0; i < size; i++, r++) { tr.setCoords(w - r->x() - 1, h - r->y() - 1, w - r->right() - 1, h - r->bottom() - 1); trgn |= correctNormalized(tr); } break; case Rot270: for (int i = 0; i < size; i++, r++) { tr.setCoords(h - r->y() - 1, r->x(), h - r->bottom() - 1, r->right()); trgn |= correctNormalized(tr); } break; } #ifdef QT_REGION_DEBUG qDebug() << "mapToDevice trgn: " << trgn; #endif return trgn; } /*! \reimp */ QRegion QTransformedScreen::mapFromDevice(const QRegion &rgn, const QSize &s) const { if (d_ptr->transformation == None) return QProxyScreen::mapFromDevice(rgn, s); #ifdef QT_REGION_DEBUG qDebug() << "fromDevice: realRegion count: " << rgn.rects().size() << " isEmpty? " << rgn.isEmpty() << " bounds:" << rgn.boundingRect(); #endif QRect tr; QRegion trgn; QVector a = rgn.rects(); const QRect *r = a.data(); int w = s.width(); int h = s.height(); int size = a.size(); switch (d_ptr->transformation) { case None: break; case Rot90: for (int i = 0; i < size; i++, r++) { tr.setCoords(h - r->y() - 1, r->x(), h - r->bottom() - 1, r->right()); trgn |= correctNormalized(tr); } break; case Rot180: for (int i = 0; i < size; i++, r++) { tr.setCoords(w - r->x() - 1, h - r->y() - 1, w - r->right() - 1, h - r->bottom() - 1); trgn |= correctNormalized(tr); } break; case Rot270: for (int i = 0; i < size; i++, r++) { tr.setCoords(r->y(), w - r->x() - 1, r->bottom(), w - r->right() - 1); trgn |= correctNormalized(tr); } break; } #ifdef QT_REGION_DEBUG qDebug() << "fromDevice: transRegion count: " << trgn.rects().size() << " isEmpty? " << trgn.isEmpty() << " bounds:" << trgn.boundingRect(); #endif return trgn; } /*! \reimp */ void QTransformedScreen::setDirty(const QRect& rect) { const QRect r = mapToDevice(rect, QSize(width(), height())); QProxyScreen::setDirty(r); } /*! \reimp */ QRegion QTransformedScreen::region() const { QRegion deviceRegion = QProxyScreen::region(); return mapFromDevice(deviceRegion, QSize(deviceWidth(), deviceHeight())); } QT_END_NAMESPACE #endif // QT_NO_QWS_TRANSFORMED