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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 534 insertions, 0 deletions

diff --git a/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
new file mode 100644
index 0000000000..fdb72de648
--- /dev/null
+++ b/src/plugins/graphicssystems/meego/qmeegographicssystem.cpp
@@ -0,0 +1,534 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 <QDebug>
+#include <private/qpixmap_raster_p.h>
+#include <private/qwindowsurface_gl_p.h>
+#include <private/qwindowsurface_raster_p.h>
+#include <private/qegl_p.h>
+#include <private/qglextensions_p.h>
+#include <private/qgl_p.h>
+#include <private/qimagepixmapcleanuphooks_p.h>
+#include <private/qapplication_p.h>
+#include <private/qgraphicssystem_runtime_p.h>
+#include <private/qimage_p.h>
+#include <private/qeglproperties_p.h>
+#include <private/qeglcontext_p.h>
+#include <private/qpixmap_x11_p.h>
+
+#include "qmeegopixmapdata.h"
+#include "qmeegolivepixmapdata.h"
+#include "qmeegographicssystem.h"
+#include "qmeegoextensions.h"
+
+#include <QTimer>
+
+bool QMeeGoGraphicsSystem::surfaceWasCreated = false;
+
+QHash <Qt::HANDLE, QPixmap*> QMeeGoGraphicsSystem::liveTexturePixmaps;
+
+QList<QMeeGoSwitchCallback> QMeeGoGraphicsSystem::switchCallbacks;
+
+QMeeGoGraphicsSystem::SwitchPolicy QMeeGoGraphicsSystem::switchPolicy = QMeeGoGraphicsSystem::AutomaticSwitch;
+
+QMeeGoGraphicsSystem::QMeeGoGraphicsSystem()
+{
+    qDebug("Using the meego graphics system");
+}
+
+QMeeGoGraphicsSystem::~QMeeGoGraphicsSystem()
+{
+    qDebug("Meego graphics system destroyed");
+    qt_destroy_gl_share_widget();
+}
+
+class QMeeGoGraphicsSystemSwitchHandler : public QObject
+{
+    Q_OBJECT
+public:
+    QMeeGoGraphicsSystemSwitchHandler();
+
+    void addWidget(QWidget *widget);
+    bool eventFilter(QObject *, QEvent *);
+
+    void handleMapNotify();
+
+private slots:
+    void removeWidget(QObject *object);
+    void switchToRaster();
+    void switchToMeeGo();
+
+private:
+    int visibleWidgets() const;
+
+private:
+    QList<QWidget *> m_widgets;
+};
+
+typedef bool(*QX11FilterFunction)(XEvent *event);
+Q_GUI_EXPORT void qt_installX11EventFilter(QX11FilterFunction func);
+
+static bool x11EventFilter(XEvent *event);
+
+QMeeGoGraphicsSystemSwitchHandler::QMeeGoGraphicsSystemSwitchHandler()
+{
+    qt_installX11EventFilter(x11EventFilter);
+}
+
+void QMeeGoGraphicsSystemSwitchHandler::addWidget(QWidget *widget)
+{
+    if (widget != qt_gl_share_widget() && !m_widgets.contains(widget)) {
+        widget->installEventFilter(this);
+        connect(widget, SIGNAL(destroyed(QObject *)), this, SLOT(removeWidget(QObject *)));
+        m_widgets << widget;
+    }
+}
+
+void QMeeGoGraphicsSystemSwitchHandler::handleMapNotify()
+{
+    if (m_widgets.isEmpty() && QMeeGoGraphicsSystem::switchPolicy == QMeeGoGraphicsSystem::AutomaticSwitch)
+        QTimer::singleShot(0, this, SLOT(switchToMeeGo()));
+}
+
+void QMeeGoGraphicsSystemSwitchHandler::removeWidget(QObject *object)
+{
+    m_widgets.removeOne(static_cast<QWidget *>(object));
+    if (m_widgets.isEmpty() && QMeeGoGraphicsSystem::switchPolicy == QMeeGoGraphicsSystem::AutomaticSwitch)
+        QTimer::singleShot(0, this, SLOT(switchToRaster()));
+}
+
+void QMeeGoGraphicsSystemSwitchHandler::switchToRaster()
+{
+    QMeeGoGraphicsSystem::switchToRaster();
+}
+
+void QMeeGoGraphicsSystemSwitchHandler::switchToMeeGo()
+{
+    QMeeGoGraphicsSystem::switchToMeeGo();
+}
+
+int QMeeGoGraphicsSystemSwitchHandler::visibleWidgets() const
+{
+    int count = 0;
+    for (int i = 0; i < m_widgets.size(); ++i)
+        count += m_widgets.at(i)->isVisible() && !(m_widgets.at(i)->windowState() & Qt::WindowMinimized);
+    return count;
+}
+
+bool QMeeGoGraphicsSystemSwitchHandler::eventFilter(QObject *object, QEvent *event)
+{
+    if (event->type() == QEvent::WindowStateChange
+        && QMeeGoGraphicsSystem::switchPolicy == QMeeGoGraphicsSystem::AutomaticSwitch)
+    {
+        QWindowStateChangeEvent *change = static_cast<QWindowStateChangeEvent *>(event);
+        QWidget *widget = static_cast<QWidget *>(object);
+
+        Qt::WindowStates current = widget->windowState();
+        Qt::WindowStates old = change->oldState();
+
+        // did minimized flag change?
+        if ((current ^ old) & Qt::WindowMinimized) {
+            if (current & Qt::WindowMinimized) {
+                if (visibleWidgets() == 0)
+                    QMeeGoGraphicsSystem::switchToRaster();
+            } else {
+                if (visibleWidgets() > 0)
+                    QMeeGoGraphicsSystem::switchToMeeGo();
+            }
+        }
+    }
+
+    // resume processing of event
+    return false;
+}
+
+Q_GLOBAL_STATIC(QMeeGoGraphicsSystemSwitchHandler, switch_handler)
+
+bool x11EventFilter(XEvent *event)
+{
+    if (event->type == MapNotify)
+        switch_handler()->handleMapNotify();
+    return false;
+}
+
+QWindowSurface* QMeeGoGraphicsSystem::createWindowSurface(QWidget *widget) const
+{
+    QGLWidget *shareWidget = qt_gl_share_widget();
+
+    if (!shareWidget)
+        return new QRasterWindowSurface(widget);
+
+    QGLShareContextScope ctx(shareWidget->context());
+
+    if (QApplicationPrivate::instance()->graphics_system_name == QLatin1String("runtime"))
+        switch_handler()->addWidget(widget);
+
+    QMeeGoGraphicsSystem::surfaceWasCreated = true;
+    QWindowSurface *surface = new QGLWindowSurface(widget);
+    return surface;
+}
+
+QPixmapData *QMeeGoGraphicsSystem::createPixmapData(QPixmapData::PixelType type) const
+{
+    return new QRasterPixmapData(type);
+}
+
+QPixmapData *QMeeGoGraphicsSystem::createPixmapData(QPixmapData *origin)
+{
+    // If the pixmap is a raster type...
+    // and if the pixmap pointer matches our mapping...
+    // create a shared image instead with the given handle.
+
+    if (!origin->isNull() && origin->classId() == QPixmapData::RasterClass) {
+        QRasterPixmapData *rasterClass = static_cast <QRasterPixmapData *> (origin);
+        void *rawResource = static_cast <void *> (rasterClass->buffer()->data_ptr()->data);
+
+        if (QMeeGoPixmapData::sharedImagesMap.contains(rawResource))
+            return new QMeeGoPixmapData();
+    }
+
+    return new QRasterPixmapData(origin->pixelType());
+}
+
+QPixmapData* QMeeGoGraphicsSystem::wrapPixmapData(QPixmapData *pmd)
+{
+    QString name = QApplicationPrivate::instance()->graphics_system_name;
+    if (name == "runtime") {
+        QRuntimeGraphicsSystem *rsystem = (QRuntimeGraphicsSystem *) QApplicationPrivate::instance()->graphics_system;
+        QRuntimePixmapData *rt = new QRuntimePixmapData(rsystem, pmd->pixelType());;
+        rt->m_data = pmd;
+        rt->readBackInfo();
+        rsystem->m_pixmapDatas << rt;
+        return rt;
+    } else
+        return pmd;
+}
+
+void QMeeGoGraphicsSystem::setSurfaceFixedSize(int /*width*/, int /*height*/)
+{
+    if (QMeeGoGraphicsSystem::surfaceWasCreated) {
+        qWarning("Trying to set surface fixed size but surface already created!");
+        return;
+    }
+
+#ifdef QT_WAS_PATCHED
+    QEglProperties *properties = new QEglProperties();
+    properties->setValue(EGL_FIXED_WIDTH_NOK, width);
+    properties->setValue(EGL_FIXED_HEIGHT_NOK, height);
+    QGLContextPrivate::setExtraWindowSurfaceCreationProps(properties);
+#endif
+}
+
+void QMeeGoGraphicsSystem::setSurfaceScaling(int x, int y, int width, int height)
+{
+    QMeeGoExtensions::ensureInitialized();
+    QMeeGoExtensions::eglSetSurfaceScalingNOK(QEgl::display(), QEglContext::currentContext(QEgl::OpenGL)->currentSurface, x, y, width, height);
+}
+
+void QMeeGoGraphicsSystem::setTranslucent(bool translucent)
+{
+    if (QMeeGoGraphicsSystem::surfaceWasCreated) {
+        qWarning("Trying to set translucency but surface already created!");
+        return;
+    }
+
+    QGLWindowSurface::surfaceFormat.setSampleBuffers(false);
+    QGLWindowSurface::surfaceFormat.setSamples(0);
+    QGLWindowSurface::surfaceFormat.setAlpha(translucent);
+}
+
+QPixmapData *QMeeGoGraphicsSystem::pixmapDataFromEGLSharedImage(Qt::HANDLE handle, const QImage &softImage)
+{
+    if (softImage.format() != QImage::Format_ARGB32_Premultiplied &&
+        softImage.format() != QImage::Format_RGB32) {
+        qFatal("For egl shared images, the soft image has to be ARGB32_Premultiplied or RGB32");
+        return NULL;
+    }
+
+    if (QMeeGoGraphicsSystem::meeGoRunning()) {
+        QMeeGoPixmapData *pmd = new QMeeGoPixmapData;
+        pmd->fromEGLSharedImage(handle, softImage);
+        return QMeeGoGraphicsSystem::wrapPixmapData(pmd);
+    } else {
+        QRasterPixmapData *pmd = new QRasterPixmapData(QPixmapData::PixmapType);
+        pmd->fromImage(softImage, Qt::NoFormatConversion);
+
+        // Make sure that the image was not converted in any way
+        if (pmd->buffer()->data_ptr()->data !=
+            const_cast<QImage &>(softImage).data_ptr()->data)
+            qFatal("Iternal misalignment of raster data detected. Prolly a QImage copy fail.");
+
+        QMeeGoPixmapData::registerSharedImage(handle, softImage);
+        return QMeeGoGraphicsSystem::wrapPixmapData(pmd);
+    }
+}
+
+void QMeeGoGraphicsSystem::updateEGLSharedImagePixmap(QPixmap *pixmap)
+{
+    QMeeGoPixmapData *pmd = (QMeeGoPixmapData *) pixmap->pixmapData();
+
+    // Basic sanity check to make sure this is really a QMeeGoPixmapData...
+    if (pmd->classId() != QPixmapData::OpenGLClass)
+        qFatal("Trying to updated EGLSharedImage pixmap but it's not really a shared image pixmap!");
+
+    pmd->updateFromSoftImage();
+}
+
+QPixmapData *QMeeGoGraphicsSystem::pixmapDataWithGLTexture(int w, int h)
+{
+    QGLPixmapData *pmd = new QGLPixmapData(QPixmapData::PixmapType);
+    pmd->resize(w, h);
+    return QMeeGoGraphicsSystem::wrapPixmapData(pmd);
+}
+
+bool QMeeGoGraphicsSystem::meeGoRunning()
+{
+    return runningGraphicsSystemName() == "meego";
+}
+
+QPixmapData* QMeeGoGraphicsSystem::pixmapDataWithNewLiveTexture(int w, int h, QImage::Format format)
+{
+    return new QMeeGoLivePixmapData(w, h, format);
+}
+
+QPixmapData* QMeeGoGraphicsSystem::pixmapDataFromLiveTextureHandle(Qt::HANDLE handle)
+{
+    return new QMeeGoLivePixmapData(handle);
+}
+
+QImage* QMeeGoGraphicsSystem::lockLiveTexture(QPixmap* pixmap, void* fenceSync)
+{
+    QMeeGoLivePixmapData *pixmapData = static_cast<QMeeGoLivePixmapData*>(pixmap->data_ptr().data());
+    return pixmapData->lock(fenceSync);
+}
+
+bool QMeeGoGraphicsSystem::releaseLiveTexture(QPixmap *pixmap, QImage *image)
+{
+    QMeeGoLivePixmapData *pixmapData = static_cast<QMeeGoLivePixmapData*>(pixmap->data_ptr().data());
+    return pixmapData->release(image);
+}
+
+Qt::HANDLE QMeeGoGraphicsSystem::getLiveTextureHandle(QPixmap *pixmap)
+{
+    QMeeGoLivePixmapData *pixmapData = static_cast<QMeeGoLivePixmapData*>(pixmap->data_ptr().data());
+    return pixmapData->handle();
+}
+
+void* QMeeGoGraphicsSystem::createFenceSync()
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+    QMeeGoExtensions::ensureInitialized();
+    return QMeeGoExtensions::eglCreateSyncKHR(QEgl::display(), EGL_SYNC_FENCE_KHR, NULL);
+}
+
+void QMeeGoGraphicsSystem::destroyFenceSync(void *fenceSync)
+{
+    QGLShareContextScope ctx(qt_gl_share_widget()->context());
+    QMeeGoExtensions::ensureInitialized();
+    QMeeGoExtensions::eglDestroySyncKHR(QEgl::display(), fenceSync);
+}
+
+QString QMeeGoGraphicsSystem::runningGraphicsSystemName()
+{
+    if (!QApplicationPrivate::instance()) {
+        qWarning("Querying graphics system but application not running yet!");
+        return QString();
+    }
+
+    QString name = QApplicationPrivate::instance()->graphics_system_name;
+    if (name == QLatin1String("runtime")) {
+        QRuntimeGraphicsSystem *rsystem = (QRuntimeGraphicsSystem *) QApplicationPrivate::instance()->graphics_system;
+        name = rsystem->graphicsSystemName();
+    }
+
+    return name;
+}
+
+void QMeeGoGraphicsSystem::switchToMeeGo()
+{
+    if (switchPolicy == NoSwitch || meeGoRunning())
+        return;
+
+    if (QApplicationPrivate::instance()->graphics_system_name != QLatin1String("runtime"))
+        qWarning("Can't switch to meego - switching only supported with 'runtime' graphics system.");
+    else {
+        triggerSwitchCallbacks(0, "meego");
+
+        QApplication *app = static_cast<QApplication *>(QCoreApplication::instance());
+        app->setGraphicsSystem(QLatin1String("meego"));
+
+        triggerSwitchCallbacks(1, "meego");
+    }
+}
+
+void QMeeGoGraphicsSystem::switchToRaster()
+{
+    if (switchPolicy == NoSwitch || runningGraphicsSystemName() == QLatin1String("raster"))
+        return;
+
+    if (QApplicationPrivate::instance()->graphics_system_name != QLatin1String("runtime"))
+        qWarning("Can't switch to raster - switching only supported with 'runtime' graphics system.");
+    else {
+        triggerSwitchCallbacks(0, "raster");
+
+        QApplication *app = static_cast<QApplication *>(QCoreApplication::instance());
+        app->setGraphicsSystem(QLatin1String("raster"));
+
+        QMeeGoLivePixmapData::invalidateSurfaces();
+
+        triggerSwitchCallbacks(1, "raster");
+    }
+}
+
+void QMeeGoGraphicsSystem::registerSwitchCallback(QMeeGoSwitchCallback callback)
+{
+    switchCallbacks << callback;
+}
+
+void QMeeGoGraphicsSystem::triggerSwitchCallbacks(int type, const char *name)
+{
+    for (int i = 0; i < switchCallbacks.size(); ++i)
+        switchCallbacks.at(i)(type, name);
+}
+
+/* C API */
+
+int qt_meego_image_to_egl_shared_image(const QImage &image)
+{
+    return QMeeGoPixmapData::imageToEGLSharedImage(image);
+}
+
+QPixmapData* qt_meego_pixmapdata_from_egl_shared_image(Qt::HANDLE handle, const QImage &softImage)
+{
+    return QMeeGoGraphicsSystem::pixmapDataFromEGLSharedImage(handle, softImage);
+}
+
+QPixmapData* qt_meego_pixmapdata_with_gl_texture(int w, int h)
+{
+    return QMeeGoGraphicsSystem::pixmapDataWithGLTexture(w, h);
+}
+
+bool qt_meego_destroy_egl_shared_image(Qt::HANDLE handle)
+{
+    return QMeeGoPixmapData::destroyEGLSharedImage(handle);
+}
+
+void qt_meego_set_surface_fixed_size(int width, int height)
+{
+    QMeeGoGraphicsSystem::setSurfaceFixedSize(width, height);
+}
+
+void qt_meego_set_surface_scaling(int x, int y, int width, int height)
+{
+    QMeeGoGraphicsSystem::setSurfaceScaling(x, y, width, height);
+}
+
+void qt_meego_set_translucent(bool translucent)
+{
+    QMeeGoGraphicsSystem::setTranslucent(translucent);
+}
+
+void qt_meego_update_egl_shared_image_pixmap(QPixmap *pixmap)
+{
+    QMeeGoGraphicsSystem::updateEGLSharedImagePixmap(pixmap);
+}
+
+QPixmapData* qt_meego_pixmapdata_with_new_live_texture(int w, int h, QImage::Format format)
+{
+    return QMeeGoGraphicsSystem::pixmapDataWithNewLiveTexture(w, h, format);
+}
+
+QPixmapData* qt_meego_pixmapdata_from_live_texture_handle(Qt::HANDLE handle)
+{
+    return QMeeGoGraphicsSystem::pixmapDataFromLiveTextureHandle(handle);
+}
+
+QImage* qt_meego_live_texture_lock(QPixmap *pixmap, void *fenceSync)
+{
+    return QMeeGoGraphicsSystem::lockLiveTexture(pixmap, fenceSync);
+}
+
+bool qt_meego_live_texture_release(QPixmap *pixmap, QImage *image)
+{
+    return QMeeGoGraphicsSystem::releaseLiveTexture(pixmap, image);
+}
+
+Qt::HANDLE qt_meego_live_texture_get_handle(QPixmap *pixmap)
+{
+    return QMeeGoGraphicsSystem::getLiveTextureHandle(pixmap);
+}
+
+void* qt_meego_create_fence_sync(void)
+{
+    return QMeeGoGraphicsSystem::createFenceSync();
+}
+
+void qt_meego_destroy_fence_sync(void* fs)
+{
+    return QMeeGoGraphicsSystem::destroyFenceSync(fs);
+}
+
+void qt_meego_invalidate_live_surfaces(void)
+{
+    return QMeeGoLivePixmapData::invalidateSurfaces();
+}
+
+void qt_meego_switch_to_raster(void)
+{
+    QMeeGoGraphicsSystem::switchToRaster();
+}
+
+void qt_meego_switch_to_meego(void)
+{
+    QMeeGoGraphicsSystem::switchToMeeGo();
+}
+
+void qt_meego_register_switch_callback(QMeeGoSwitchCallback callback)
+{
+    QMeeGoGraphicsSystem::registerSwitchCallback(callback);
+}
+
+void qt_meego_set_switch_policy(int policy)
+{
+    QMeeGoGraphicsSystem::switchPolicy = QMeeGoGraphicsSystem::SwitchPolicy(policy);
+}
+
+#include "qmeegographicssystem.moc"