Long live Qt!

1 files changed, 125 insertions, 0 deletions

diff --git a/src/opengl/qegl_qws.cpp b/src/opengl/qegl_qws.cpp
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+++ b/src/opengl/qegl_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 <QtGui/qpaintdevice.h>
+#include <QtGui/qpixmap.h>
+#include <QtGui/qwidget.h>
+#include "qegl_p.h"
+
+#if defined(QT_OPENGL_ES) || defined(QT_OPENVG)
+
+#include <qglscreen_qws.h>
+#include <qscreenproxy_qws.h>
+#include <private/qglwindowsurface_qws_p.h>
+#include <qapplication.h>
+#include <qdesktopwidget.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;
+}
+
+// Create the surface for a QPixmap, QImage, or QWidget.
+bool QEglContext::createSurface(QPaintDevice *device)
+{
+    // Get the screen surface functions, which are used to create native ids.
+    QGLScreen *glScreen = glScreenForDevice(device);
+    if (!glScreen)
+        return false;
+    QGLScreenSurfaceFunctions *funcs = glScreen->surfaceFunctions();
+    if (!funcs)
+        return false;
+
+    // Create the native drawable for the paint device.
+    int devType = device->devType();
+    EGLNativePixmapType pixmapDrawable = 0;
+    EGLNativeWindowType windowDrawable = 0;
+    bool ok;
+    if (devType == QInternal::Pixmap) {
+        ok = funcs->createNativePixmap(static_cast<QPixmap *>(device), &pixmapDrawable);
+    } else if (devType == QInternal::Image) {
+        ok = funcs->createNativeImage(static_cast<QImage *>(device), &pixmapDrawable);
+    } else {
+        ok = funcs->createNativeWindow(static_cast<QWidget *>(device), &windowDrawable);
+    }
+    if (!ok) {
+        qWarning("QEglContext::createSurface(): Cannot create the native EGL drawable");
+        return false;
+    }
+
+    // Create the EGL surface to draw into, based on the native drawable.
+    if (devType == QInternal::Widget)
+        surf = eglCreateWindowSurface(dpy, cfg, windowDrawable, 0);
+    else
+        surf = eglCreatePixmapSurface(dpy, cfg, pixmapDrawable, 0);
+    if (surf == EGL_NO_SURFACE) {
+        qWarning("QEglContext::createSurface(): Unable to create EGL surface, error = 0x%x", eglGetError());
+        return false;
+    }
+    return true;
+}
+
+EGLDisplay QEglContext::getDisplay(QPaintDevice *device)
+{
+    Q_UNUSED(device);
+    return eglGetDisplay(EGLNativeDisplayType(EGL_DEFAULT_DISPLAY));
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_OPENGL_ES || QT_OPENVG