/****************************************************************************+
−
**+
−
** 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 <QtOpenGL/qgl.h>+
−
#include "qgl_p.h"+
−
#include "qgl_egl_p.h"+
−
+
−
QT_BEGIN_NAMESPACE+
−
+
−
// Set device configuration attributes from a QGLFormat instance.+
−
void qt_egl_set_format(QEglProperties& props, int deviceType, const QGLFormat& f)+
−
{+
−
    if (deviceType == QInternal::Pixmap || deviceType == QInternal::Image)+
−
        props.setValue(EGL_SURFACE_TYPE, EGL_PIXMAP_BIT);+
−
    else if (deviceType == QInternal::Pbuffer)+
−
        props.setValue(EGL_SURFACE_TYPE, EGL_PBUFFER_BIT);+
−
    else+
−
        props.setValue(EGL_SURFACE_TYPE, EGL_WINDOW_BIT);+
−
+
−
    // Set the pixel format to that contained in the QGLFormat+
−
    // if the system hasn't already chosen a fixed format to+
−
    // match the pixmap, widget, etc.+
−
    if (props.value(EGL_RED_SIZE) == 0 || f.redBufferSize() != -1)+
−
        props.setValue(EGL_RED_SIZE, f.redBufferSize() == -1 ? 1 : f.redBufferSize());+
−
    if (props.value(EGL_GREEN_SIZE) == 0 || f.greenBufferSize() != -1)+
−
        props.setValue(EGL_GREEN_SIZE, f.greenBufferSize() == -1 ? 1 : f.greenBufferSize());+
−
    if (props.value(EGL_BLUE_SIZE) == 0 || f.blueBufferSize() != -1)+
−
        props.setValue(EGL_BLUE_SIZE, f.blueBufferSize() == -1 ? 1 : f.blueBufferSize());+
−
    if (f.alpha()) {+
−
        if (props.value(EGL_ALPHA_SIZE) == 0 || f.alphaBufferSize() != -1)+
−
            props.setValue(EGL_ALPHA_SIZE, f.alphaBufferSize() == -1 ? 1 : f.alphaBufferSize());+
−
    }+
−
+
−
    if (f.depth())+
−
        props.setValue(EGL_DEPTH_SIZE, f.depthBufferSize() == -1 ? 1 : f.depthBufferSize());+
−
    if (f.stencil())+
−
        props.setValue(EGL_STENCIL_SIZE, f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize());+
−
    if (f.sampleBuffers()) {+
−
        props.setValue(EGL_SAMPLE_BUFFERS, 1);+
−
        props.setValue(EGL_SAMPLES, f.samples() == -1 ? 1 : f.samples());+
−
    } else {+
−
        props.setValue(EGL_SAMPLE_BUFFERS, 0);+
−
    }+
−
    if (deviceType == QInternal::Widget)+
−
        props.setValue(EGL_LEVEL, f.plane());+
−
}+
−
+
−
// Updates "format" with the parameters of the selected configuration.+
−
void qt_egl_update_format(const QEglContext& context, QGLFormat& format)+
−
{+
−
    EGLint value = 0;+
−
+
−
    if (context.configAttrib(EGL_RED_SIZE, &value))+
−
        format.setRedBufferSize(value);+
−
    if (context.configAttrib(EGL_GREEN_SIZE, &value))+
−
        format.setGreenBufferSize(value);+
−
    if (context.configAttrib(EGL_BLUE_SIZE, &value))+
−
        format.setBlueBufferSize(value);+
−
    if (context.configAttrib(EGL_ALPHA_SIZE, &value)) {+
−
        format.setAlpha(value != 0);+
−
        if (format.alpha())+
−
            format.setAlphaBufferSize(value);+
−
    }+
−
+
−
    if (context.configAttrib(EGL_DEPTH_SIZE, &value)) {+
−
        format.setDepth(value != 0);+
−
        if (format.depth())+
−
            format.setDepthBufferSize(value);+
−
    }+
−
+
−
    if (context.configAttrib(EGL_LEVEL, &value))+
−
        format.setPlane(value);+
−
+
−
    if (context.configAttrib(EGL_SAMPLE_BUFFERS, &value)) {+
−
        format.setSampleBuffers(value != 0);+
−
        if (format.sampleBuffers()) {+
−
            context.configAttrib(EGL_SAMPLES, &value);+
−
            format.setSamples(value);+
−
        }+
−
    }+
−
+
−
    if (context.configAttrib(EGL_STENCIL_SIZE, &value)) {+
−
        format.setStencil(value != 0);+
−
        if (format.stencil())+
−
            format.setStencilBufferSize(value);+
−
    }+
−
+
−
    // Clear the EGL error state because some of the above may+
−
    // have errored out because the attribute is not applicable+
−
    // to the surface type.  Such errors don't matter.+
−
    context.clearError();+
−
}+
−
+
−
bool QGLFormat::hasOpenGL()+
−
{+
−
    return true;+
−
}+
−
+
−
void QGLContext::reset()+
−
{+
−
    Q_D(QGLContext);+
−
    if (!d->valid)+
−
        return;+
−
    d->cleanup();+
−
    doneCurrent();+
−
    if (d->eglContext) {+
−
        d->destroyEglSurfaceForDevice();+
−
        delete d->eglContext;+
−
    }+
−
    d->eglContext = 0;+
−
    d->eglSurface = EGL_NO_SURFACE;+
−
    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 || d->eglSurface == EGL_NO_SURFACE) {+
−
        qWarning("QGLContext::makeCurrent(): Cannot make invalid context current");+
−
        return;+
−
    }+
−
+
−
    if (d->eglContext->makeCurrent(d->eglSurface))+
−
        QGLContextPrivate::setCurrentContext(this);+
−
}+
−
+
−
void QGLContext::doneCurrent()+
−
{+
−
    Q_D(QGLContext);+
−
    if (d->eglContext)+
−
        d->eglContext->doneCurrent();+
−
+
−
    QGLContextPrivate::setCurrentContext(0);+
−
}+
−
+
−
+
−
void QGLContext::swapBuffers() const+
−
{+
−
    Q_D(const QGLContext);+
−
    if (!d->valid || !d->eglContext)+
−
        return;+
−
+
−
    d->eglContext->swapBuffers(d->eglSurface);+
−
}+
−
+
−
void QGLContextPrivate::destroyEglSurfaceForDevice()+
−
{+
−
    if (eglSurface != EGL_NO_SURFACE) {+
−
#ifdef Q_WS_X11+
−
        // Make sure we don't call eglDestroySurface on a surface which+
−
        // was created for a different winId:+
−
        if (paintDevice->devType() == QInternal::Widget) {+
−
            QGLWidget* w = static_cast<QGLWidget*>(paintDevice);+
−
+
−
            if (w->d_func()->eglSurfaceWindowId == w->winId())+
−
                eglDestroySurface(eglContext->display(), eglSurface);+
−
            else+
−
                qWarning("WARNING: Potential EGL surface leak!");+
−
        } else+
−
#endif+
−
            eglDestroySurface(eglContext->display(), eglSurface);+
−
        eglSurface = EGL_NO_SURFACE;+
−
    }+
−
}+
−
+
−
void QGLWidget::setMouseTracking(bool enable)+
−
{+
−
    QWidget::setMouseTracking(enable);+
−
}+
−
+
−
QColor QGLContext::overlayTransparentColor() const+
−
{+
−
    return d_func()->transpColor;+
−
}+
−
+
−
uint QGLContext::colorIndex(const QColor &c) const+
−
{+
−
    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 QGLWidgetPrivate::renderCxPm(QPixmap*)+
−
{+
−
    return false;+
−
}+
−
+
−
QT_END_NAMESPACE+
−