--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opengl/qgl_qws.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,343 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 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 "qgl.h"
+#include "qgl_egl_p.h"
+#include "qglpixelbuffer.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->classId() == QScreen::TransformedClass) {
+ 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::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());
+}
+
+static EGLSurface qt_egl_create_surface
+ (QEglContext *context, QPaintDevice *device,
+ const QEglProperties *properties = 0)
+{
+ // Get the screen surface functions, which are used to create native ids.
+ QGLScreen *glScreen = glScreenForDevice(device);
+ if (!glScreen)
+ return EGL_NO_SURFACE;
+ QGLScreenSurfaceFunctions *funcs = glScreen->surfaceFunctions();
+ if (!funcs)
+ return EGL_NO_SURFACE;
+
+ // 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 EGL_NO_SURFACE;
+ }
+
+ // Create the EGL surface to draw into, based on the native drawable.
+ const int *props;
+ if (properties)
+ props = properties->properties();
+ else
+ props = 0;
+ EGLSurface surf;
+ if (devType == QInternal::Widget) {
+ surf = eglCreateWindowSurface
+ (context->display(), context->config(), windowDrawable, props);
+ } else {
+ surf = eglCreatePixmapSurface
+ (context->display(), context->config(), pixmapDrawable, props);
+ }
+ if (surf == EGL_NO_SURFACE)
+ qWarning("QEglContext::createSurface(): Unable to create EGL surface, error = 0x%x", eglGetError());
+ return surf;
+}
+
+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(QEgl::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(QEgl::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. We cannot use
+ // QEglContext::createSurface() because it does not have
+ // access to the QGLScreen.
+ d->eglSurface = qt_egl_create_surface(d->eglContext, device());
+ if (d->eglSurface == EGL_NO_SURFACE) {
+ delete d->eglContext;
+ d->eglContext = 0;
+ return false;
+ }
+
+ return true;
+}
+
+
+bool QGLWidget::event(QEvent *e)
+{
+ return QWidget::event(e);
+}
+
+
+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");
+ }
+}
+
+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;
+
+ // We need a context current to initialize the extensions,
+ // but getting a valid EGLNativeWindowType this early can be
+ // problematic under QWS. So use a pbuffer instead.
+ //
+ // Unfortunately OpenGL/ES 2.0 systems don't normally
+ // support pbuffers, so we have no choice but to try
+ // our luck with a window on those systems.
+#if defined(QT_OPENGL_ES_2)
+ QGLWidget tmpWidget;
+ tmpWidget.makeCurrent();
+
+ init_extensions();
+
+ tmpWidget.doneCurrent();
+#else
+ QGLPixelBuffer pbuffer(16, 16);
+ pbuffer.makeCurrent();
+
+ init_extensions();
+
+ pbuffer.doneCurrent();
+#endif
+}
+
+QT_END_NAMESPACE