diff options
Diffstat (limited to 'src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp')
| -rw-r--r-- | src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp new file mode 100644 index 0000000..b8ea5d5 --- /dev/null +++ b/src/plugins/gfxdrivers/eglnullws/eglnullwsscreen.cpp @@ -0,0 +1,181 @@ +/**************************************************************************** +** +** 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 "eglnullwsscreen.h" +#include "eglnullwswindowsurface.h" +#include "eglnullwsscreenplugin.h" + +#include <QHash> +#include <QDebug> + +namespace +{ + class EGLNullWSScreenSurfaceFunctions : public QGLScreenSurfaceFunctions + { + public: + virtual bool createNativeWindow(QWidget *, EGLNativeWindowType *native) + { *native = 0; return true; } + }; +} + +EGLNullWSScreen::EGLNullWSScreen(int displayId) : QGLScreen(displayId) {} + +EGLNullWSScreen::~EGLNullWSScreen() {} + +bool EGLNullWSScreen::initDevice() +{ + setSurfaceFunctions(new EGLNullWSScreenSurfaceFunctions); + return true; +} + +static const QHash<QString, QImage::Format> formatDictionary() +{ + QHash<QString, QImage::Format> dictionary; + dictionary["rgb32"] = QImage::Format_RGB32; + dictionary["argb32"] = QImage::Format_ARGB32; + dictionary["rgb16"] = QImage::Format_RGB16; + dictionary["rgb666"] = QImage::Format_RGB666; + dictionary["rgb555"] = QImage::Format_RGB555; + dictionary["rgb888"] = QImage::Format_RGB888; + dictionary["rgb444"] = QImage::Format_RGB444; + return dictionary; +} + +static int depthForFormat(QImage::Format format) +{ + switch (format) { + case QImage::Format_RGB32: return 32; + case QImage::Format_ARGB32: return 32; + case QImage::Format_RGB16: return 16; + case QImage::Format_RGB666: return 24; + case QImage::Format_RGB555: return 16; + case QImage::Format_RGB888: return 24; + case QImage::Format_RGB444: return 16; + default: + Q_ASSERT_X(false, "EGLNullWSScreen", "Unknown format"); + return -1; + } +} + +static void printHelp(const QHash<QString, QImage::Format> &formatDictionary) +{ + QByteArray formatsBuf; + QTextStream(&formatsBuf) << QStringList(formatDictionary.keys()).join(", "); + qWarning( + "%s: Valid options are:\n" + "size=WIDTHxHEIGHT Screen size reported by this driver\n" + "format=FORMAT Screen format, where FORMAT is one of the following:\n" + " %s\n", + PluginName, + formatsBuf.constData()); +} + +bool EGLNullWSScreen::connect(const QString &displaySpec) +{ + const QStringList args = displaySpec.section(':', 1).split(':', QString::SkipEmptyParts); + const QHash<QString, QImage::Format> formatDict = formatDictionary(); + Q_FOREACH(const QString arg, args) { + const QString optionName = arg.section('=', 0, 0); + const QString optionArg = arg.section('=', 1); + if (optionName == QLatin1String("size")) { + w = optionArg.section('x', 0, 0).toInt(); + h = optionArg.section('x', 1, 1).toInt(); + } else if (optionName == QLatin1String("format")) { + if (formatDict.contains(optionArg)) + setPixelFormat(formatDict.value(optionArg)); + else + printHelp(formatDict); + } else { + printHelp(formatDict); + } + } + + if (w == 0 || h == 0) { + w = 640; + h = 480; + qWarning("%s: Using default screen size %dx%d", PluginName, w, h); + } + dw = w; + dh = h; + + if (pixelFormat() == QImage::Format_Invalid) { + qWarning("%s: Using default screen format argb32", PluginName); + setPixelFormat(QImage::Format_ARGB32); + } + d = depthForFormat(pixelFormat()); + + static const int Dpi = 120; + static const qreal ScalingFactor = static_cast<qreal>(25.4) / Dpi; + physWidth = qRound(dw * ScalingFactor); + physHeight = qRound(dh * ScalingFactor); + + return true; +} + +void EGLNullWSScreen::disconnect() {} + +void EGLNullWSScreen::shutdownDevice() {} + +void EGLNullWSScreen::setMode(int /*width*/, int /*height*/, int /*depth*/) {} + +void EGLNullWSScreen::blank(bool /*on*/) {} + +void EGLNullWSScreen::exposeRegion(QRegion /*r*/, int /*changing*/) {} + +QWSWindowSurface* EGLNullWSScreen::createSurface(QWidget *widget) const +{ + if (qobject_cast<QGLWidget*>(widget)) { + return new EGLNullWSWindowSurface(widget); + } else { + qWarning("%s: Creating non-GL surface", PluginName); + return QScreen::createSurface(widget); + } +} + +QWSWindowSurface* EGLNullWSScreen::createSurface(const QString &key) const +{ + if (key == QLatin1String("eglnullws")) { + return new EGLNullWSWindowSurface; + } else { + qWarning("%s: Creating non-GL surface", PluginName); + return QScreen::createSurface(key); + } +} |