Long live Qt 4.5!

1 files changed, 364 insertions, 0 deletions

diff --git a/src/opengl/qgl_qws.cpp b/src/opengl/qgl_qws.cpp
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+++ b/src/opengl/qgl_qws.cpp
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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 QtOpenGL module 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.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgl.h"
+#include "qgl_egl_p.h"
+
+#include <qglscreen_qws.h>
+#include <qscreenproxy_qws.h>
+#include <private/qglwindowsurface_qws_p.h>
+
+#include <private/qbackingstore_p.h>
+#include <private/qfont_p.h>
+#include <private/qfontengine_p.h>
+#include <private/qgl_p.h>
+#include <private/qpaintengine_opengl_p.h>
+#include <qpixmap.h>
+#include <qtimer.h>
+#include <qapplication.h>
+#include <qstack.h>
+#include <qdesktopwidget.h>
+#include <qdebug.h>
+#include <qvarlengtharray.h>
+
+QT_BEGIN_NAMESPACE
+
+static QGLScreen *glScreenForDevice(QPaintDevice *device)
+{
+    QScreen *screen = qt_screen;
+    if (screen->classId() == QScreen::MultiClass) {
+        int screenNumber;
+        if (device && device->devType() == QInternal::Widget)
+            screenNumber = qApp->desktop()->screenNumber(static_cast<QWidget *>(device));
+        else
+            screenNumber = 0;
+        screen = screen->subScreens()[screenNumber];
+    }
+    while (screen->classId() == QScreen::ProxyClass) {
+        screen = static_cast<QProxyScreen *>(screen)->screen();
+    }
+    if (screen->classId() == QScreen::GLClass)
+        return static_cast<QGLScreen *>(screen);
+    else
+        return 0;
+}
+
+/*****************************************************************************
+  QOpenGL debug facilities
+ *****************************************************************************/
+//#define DEBUG_OPENGL_REGION_UPDATE
+
+bool QGLFormat::hasOpenGL()
+{
+    return true;
+}
+
+
+bool QGLFormat::hasOpenGLOverlays()
+{
+    QGLScreen *glScreen = glScreenForDevice(0);
+    if (glScreen)
+        return (glScreen->options() & QGLScreen::Overlays);
+    else
+        return false;
+}
+
+void qt_egl_add_platform_config(QEglProperties& props, QPaintDevice *device)
+{
+    // Find the QGLScreen for this paint device.
+    QGLScreen *glScreen = glScreenForDevice(device);
+    if (!glScreen) {
+        qWarning("QGLContext::chooseContext(): The screen is not a QGLScreen");
+        return;
+    }
+    int devType = device->devType();
+    if (devType == QInternal::Image)
+        props.setPixelFormat(static_cast<QImage *>(device)->format());
+    else
+        props.setPixelFormat(glScreen->pixelFormat());
+}
+
+bool QGLContext::chooseContext(const QGLContext* shareContext)
+{
+    Q_D(QGLContext);
+
+    // Validate the device.
+    if (!device())
+        return false;
+    int devType = device()->devType();
+    if (devType != QInternal::Pixmap && devType != QInternal::Image && devType != QInternal::Widget) {
+        qWarning("QGLContext::chooseContext(): Cannot create QGLContext's for paint device type %d", devType);
+        return false;
+    }
+
+    // Get the display and initialize it.
+    d->eglContext = new QEglContext();
+    d->eglContext->setApi(QEglContext::OpenGL);
+    if (!d->eglContext->openDisplay(device())) {
+        delete d->eglContext;
+        d->eglContext = 0;
+        return false;
+    }
+
+    // Construct the configuration we need for this surface.
+    QEglProperties configProps;
+    qt_egl_add_platform_config(configProps, device());
+    qt_egl_set_format(configProps, devType, d->glFormat);
+    configProps.setRenderableType(QEglContext::OpenGL);
+
+    // Search for a matching configuration, reducing the complexity
+    // each time until we get something that matches.
+    if (!d->eglContext->chooseConfig(configProps)) {
+        delete d->eglContext;
+        d->eglContext = 0;
+        return false;
+    }
+
+    // Inform the higher layers about the actual format properties.
+    qt_egl_update_format(*(d->eglContext), d->glFormat);
+
+    // Create a new context for the configuration.
+    if (!d->eglContext->createContext
+            (shareContext ? shareContext->d_func()->eglContext : 0)) {
+        delete d->eglContext;
+        d->eglContext = 0;
+        return false;
+    }
+
+#if defined(EGL_VERSION_1_1)
+    if (d->glFormat.swapInterval() != -1 && devType == QInternal::Widget)
+        eglSwapInterval(d->eglContext->display(), d->glFormat.swapInterval());
+#endif
+
+    // Create the EGL surface to draw into.
+    if (!d->eglContext->createSurface(device())) {
+        delete d->eglContext;
+        d->eglContext = 0;
+        return false;
+    }
+
+    return true;
+}
+
+
+void QGLContext::reset()
+{
+    Q_D(QGLContext);
+    if (!d->valid)
+        return;
+    d->cleanup();
+    doneCurrent();
+    if (d->eglContext) {
+        delete d->eglContext;
+        d->eglContext = 0;
+    }
+    d->crWin = false;
+    d->sharing = false;
+    d->valid = false;
+    d->transpColor = QColor();
+    d->initDone = false;
+    qgl_share_reg()->removeShare(this);
+}
+
+void QGLContext::makeCurrent()
+{
+    Q_D(QGLContext);
+    if(!d->valid || !d->eglContext) {
+        qWarning("QGLContext::makeCurrent(): Cannot make invalid context current");
+        return;
+    }
+
+    if (d->eglContext->makeCurrent()) {
+        if (!qgl_context_storage.hasLocalData() && QThread::currentThread())
+            qgl_context_storage.setLocalData(new QGLThreadContext);
+        if (qgl_context_storage.hasLocalData())
+            qgl_context_storage.localData()->context = this;
+        currentCtx = this;
+    }
+}
+
+void QGLContext::doneCurrent()
+{
+    Q_D(QGLContext);
+    if (d->eglContext)
+        d->eglContext->doneCurrent();
+
+    if (qgl_context_storage.hasLocalData())
+        qgl_context_storage.localData()->context = 0;
+    currentCtx = 0;
+}
+
+
+void QGLContext::swapBuffers() const
+{
+    Q_D(const QGLContext);
+    if(!d->valid || !d->eglContext)
+        return;
+
+    d->eglContext->swapBuffers();
+}
+
+QColor QGLContext::overlayTransparentColor() const
+{
+    return QColor(0, 0, 0);                // Invalid color
+}
+
+uint QGLContext::colorIndex(const QColor &c) const
+{
+    //### color index doesn't work on egl
+    Q_UNUSED(c);
+    return 0;
+}
+
+void QGLContext::generateFontDisplayLists(const QFont & fnt, int listBase)
+{
+    Q_UNUSED(fnt);
+    Q_UNUSED(listBase);
+}
+
+void *QGLContext::getProcAddress(const QString &proc) const
+{
+    return (void*)eglGetProcAddress(reinterpret_cast<const char *>(proc.toLatin1().data()));
+}
+
+bool QGLWidget::event(QEvent *e)
+{
+    return QWidget::event(e);
+}
+
+void QGLWidget::setMouseTracking(bool enable)
+{
+    QWidget::setMouseTracking(enable);
+}
+
+
+void QGLWidget::resizeEvent(QResizeEvent *)
+{
+    Q_D(QGLWidget);
+    if (!isValid())
+        return;
+    makeCurrent();
+    if (!d->glcx->initialized())
+        glInit();
+    resizeGL(width(), height());
+    //handle overlay
+}
+
+const QGLContext* QGLWidget::overlayContext() const
+{
+    return 0;
+}
+
+void QGLWidget::makeOverlayCurrent()
+{
+    //handle overlay
+}
+
+void QGLWidget::updateOverlayGL()
+{
+    //handle overlay
+}
+
+void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext, bool deleteOldContext)
+{
+    Q_D(QGLWidget);
+    if(context == 0) {
+        qWarning("QGLWidget::setContext: Cannot set null context");
+        return;
+    }
+
+    if(d->glcx)
+        d->glcx->doneCurrent();
+    QGLContext* oldcx = d->glcx;
+    d->glcx = context;
+    if(!d->glcx->isValid())
+        d->glcx->create(shareContext ? shareContext : oldcx);
+    if(deleteOldContext)
+        delete oldcx;
+}
+
+void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget* shareWidget)
+{
+    Q_Q(QGLWidget);
+
+    QGLScreen *glScreen = glScreenForDevice(q);
+    if (glScreen) {
+        wsurf = static_cast<QWSGLWindowSurface*>(glScreen->createSurface(q));
+        q->setWindowSurface(wsurf);
+    }
+
+    initContext(context, shareWidget);
+
+    if(q->isValid() && glcx->format().hasOverlay()) {
+        //no overlay
+        qWarning("QtOpenGL ES doesn't currently support overlays");
+    }
+}
+
+bool QGLWidgetPrivate::renderCxPm(QPixmap*)
+{
+    return false;
+}
+
+void QGLWidgetPrivate::cleanupColormaps()
+{
+}
+
+const QGLColormap & QGLWidget::colormap() const
+{
+    return d_func()->cmap;
+}
+
+void QGLWidget::setColormap(const QGLColormap &)
+{
+}
+
+void QGLExtensions::init()
+{
+    static bool init_done = false;
+
+    if (init_done)
+        return;
+    init_done = true;
+    init_extensions();
+}
+
+QT_END_NAMESPACE