2011-04-27 10:05:43 +00:00
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtOpenGL module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QApplication>
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#include <QtGui/private/qapplication_p.h>
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#include <QPixmap>
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#include <QDebug>
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#include <QtGui/private/qapplication_p.h>
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2011-04-26 14:21:58 +00:00
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#include <QtGui/QPlatformGLContext>
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2011-04-27 10:05:43 +00:00
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#include <QtGui/QPlatformWindow>
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2011-04-26 14:21:58 +00:00
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#include <QtGui/QWindowContext>
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2011-04-27 10:05:43 +00:00
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#include "qgl.h"
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#include "qgl_p.h"
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QT_BEGIN_NAMESPACE
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2011-04-26 14:21:58 +00:00
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QGLFormat QGLFormat::fromWindowFormat(const QWindowFormat &format)
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2011-04-27 10:05:43 +00:00
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{
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QGLFormat retFormat;
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if (format.alphaBufferSize() >= 0)
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retFormat.setAlphaBufferSize(format.alphaBufferSize());
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if (format.blueBufferSize() >= 0)
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retFormat.setBlueBufferSize(format.blueBufferSize());
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if (format.greenBufferSize() >= 0)
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retFormat.setGreenBufferSize(format.greenBufferSize());
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if (format.redBufferSize() >= 0)
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retFormat.setRedBufferSize(format.redBufferSize());
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2011-04-26 14:21:58 +00:00
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if (format.depthBufferSize() >= 0)
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retFormat.setDepthBufferSize(format.depthBufferSize());
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if (format.samples() > 1) {
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retFormat.setSampleBuffers(format.samples());
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retFormat.setSamples(true);
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}
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if (format.stencilBufferSize() > 0) {
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retFormat.setStencil(true);
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2011-04-27 10:05:43 +00:00
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retFormat.setStencilBufferSize(format.stencilBufferSize());
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2011-04-26 14:21:58 +00:00
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}
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retFormat.setDoubleBuffer(format.swapBehavior() != QWindowFormat::SingleBuffer);
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2011-04-27 10:05:43 +00:00
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retFormat.setStereo(format.stereo());
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return retFormat;
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}
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2011-04-26 14:21:58 +00:00
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QWindowFormat QGLFormat::toWindowFormat(const QGLFormat &format)
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2011-04-27 10:05:43 +00:00
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{
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2011-04-26 14:21:58 +00:00
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QWindowFormat retFormat;
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2011-04-27 10:05:43 +00:00
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if (format.alphaBufferSize() >= 0)
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retFormat.setAlphaBufferSize(format.alphaBufferSize());
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if (format.blueBufferSize() >= 0)
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retFormat.setBlueBufferSize(format.blueBufferSize());
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if (format.greenBufferSize() >= 0)
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retFormat.setGreenBufferSize(format.greenBufferSize());
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if (format.redBufferSize() >= 0)
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retFormat.setRedBufferSize(format.redBufferSize());
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2011-04-26 14:21:58 +00:00
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if (format.depthBufferSize() >= 0)
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retFormat.setDepthBufferSize(format.depthBufferSize());
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retFormat.setSwapBehavior(format.doubleBuffer() ? QWindowFormat::DoubleBuffer : QWindowFormat::DefaultSwapBehavior);
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if (format.sampleBuffers() && format.samples() > 1)
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2011-04-27 10:05:43 +00:00
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retFormat.setSamples(format.samples());
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2011-04-26 14:21:58 +00:00
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if (format.stencil() && format.stencilBufferSize() > 0)
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2011-04-27 10:05:43 +00:00
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retFormat.setStencilBufferSize(format.stencilBufferSize());
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retFormat.setStereo(format.stereo());
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return retFormat;
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}
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void QGLContextPrivate::setupSharing() {
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Q_Q(QGLContext);
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2011-04-26 14:21:58 +00:00
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QWindowContext *sharedContext = windowContext->handle()->windowFormat().sharedContext();
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if (sharedContext) {
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QGLContext *actualSharedContext = QGLContext::fromWindowContext(sharedContext);
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2011-04-27 10:05:43 +00:00
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sharing = true;
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QGLContextGroup::addShare(q,actualSharedContext);
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}
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}
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bool QGLFormat::hasOpenGL()
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{
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return QApplicationPrivate::platformIntegration()
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->hasCapability(QPlatformIntegration::OpenGL);
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}
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void qDeleteQGLContext(void *handle)
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{
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QGLContext *context = static_cast<QGLContext *>(handle);
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delete context;
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}
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bool QGLContext::chooseContext(const QGLContext* shareContext)
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{
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Q_D(QGLContext);
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if(!d->paintDevice || d->paintDevice->devType() != QInternal::Widget) {
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d->valid = false;
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}else {
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QWidget *widget = static_cast<QWidget *>(d->paintDevice);
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2011-04-26 14:21:58 +00:00
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if (!widget->windowHandle()->handle()) {
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2011-04-27 10:05:43 +00:00
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QGLFormat glformat = format();
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2011-04-26 14:21:58 +00:00
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QWindowFormat winFormat = QGLFormat::toWindowFormat(glformat);
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2011-04-27 10:05:43 +00:00
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if (shareContext) {
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2011-04-26 14:21:58 +00:00
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winFormat.setSharedContext(shareContext->d_func()->windowContext);
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2011-04-27 10:05:43 +00:00
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}
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2011-04-26 14:21:58 +00:00
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widget->windowHandle()->setSurfaceType(QWindow::OpenGLSurface);
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2011-04-27 10:05:43 +00:00
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winFormat.setWindowSurface(false);
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2011-04-26 14:21:58 +00:00
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widget->windowHandle()->setWindowFormat(winFormat);
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2011-04-27 10:05:43 +00:00
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widget->winId();//make window
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}
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2011-04-26 14:21:58 +00:00
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d->windowContext = widget->windowHandle()->glContext();
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Q_ASSERT(d->windowContext);
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d->glFormat = QGLFormat::fromWindowFormat(d->windowContext->handle()->windowFormat());
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d->valid =(bool) d->windowContext;
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2011-04-27 10:05:43 +00:00
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if (d->valid) {
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2011-04-26 14:21:58 +00:00
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d->windowContext->setQGLContextHandle(this,qDeleteQGLContext);
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2011-04-27 10:05:43 +00:00
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}
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d->setupSharing();
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}
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return d->valid;
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}
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void QGLContext::reset()
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{
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Q_D(QGLContext);
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if (!d->valid)
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return;
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d->cleanup();
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d->crWin = false;
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d->sharing = false;
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d->valid = false;
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d->transpColor = QColor();
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d->initDone = false;
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QGLContextGroup::removeShare(this);
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2011-04-26 14:21:58 +00:00
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if (d->windowContext) {
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d->windowContext->setQGLContextHandle(0,0);
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2011-04-27 10:05:43 +00:00
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}
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}
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void QGLContext::makeCurrent()
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{
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Q_D(QGLContext);
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2011-04-26 14:21:58 +00:00
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d->windowContext->makeCurrent();
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2011-04-27 10:05:43 +00:00
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if (!d->workaroundsCached) {
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d->workaroundsCached = true;
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const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
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if (renderer && strstr(renderer, "Mali")) {
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d->workaround_brokenFBOReadBack = true;
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}
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}
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}
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void QGLContext::doneCurrent()
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{
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Q_D(QGLContext);
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2011-04-26 14:21:58 +00:00
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d->windowContext->doneCurrent();
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2011-04-27 10:05:43 +00:00
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}
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void QGLContext::swapBuffers() const
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{
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Q_D(const QGLContext);
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2011-04-26 14:21:58 +00:00
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d->windowContext->swapBuffers();
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2011-04-27 10:05:43 +00:00
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}
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void *QGLContext::getProcAddress(const QString &procName) const
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{
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Q_D(const QGLContext);
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2011-04-26 14:21:58 +00:00
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return (void *)d->windowContext->getProcAddress(procName.toAscii());
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2011-04-27 10:05:43 +00:00
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}
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void QGLWidget::setContext(QGLContext *context,
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const QGLContext* shareContext,
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bool deleteOldContext)
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{
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Q_D(QGLWidget);
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if (context == 0) {
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qWarning("QGLWidget::setContext: Cannot set null context");
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return;
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}
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if (context->device() == 0) // a context may refere to more than 1 window.
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context->setDevice(this); //but its better to point to 1 of them than none of them.
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QGLContext* oldcx = d->glcx;
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d->glcx = context;
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if (!d->glcx->isValid())
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d->glcx->create(shareContext ? shareContext : oldcx);
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if (deleteOldContext)
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delete oldcx;
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}
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void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget *shareWidget)
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{
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initContext(context, shareWidget);
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}
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bool QGLFormat::hasOpenGLOverlays()
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{
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return false;
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}
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QColor QGLContext::overlayTransparentColor() const
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{
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return QColor(); // Invalid color
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}
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uint QGLContext::colorIndex(const QColor&) const
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{
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return 0;
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}
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void QGLContext::generateFontDisplayLists(const QFont & fnt, int listBase)
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{
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Q_UNUSED(fnt);
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Q_UNUSED(listBase);
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}
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/*
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QGLTemporaryContext implementation
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*/
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class QGLTemporaryContextPrivate
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{
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public:
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2011-04-26 14:21:58 +00:00
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QWindow *window;
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QWindowContext *context;
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2011-04-27 10:05:43 +00:00
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};
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QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *)
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: d(new QGLTemporaryContextPrivate)
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{
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2011-04-26 14:21:58 +00:00
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d->context = const_cast<QWindowContext *>(QWindowContext::currentContext());
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2011-04-27 10:05:43 +00:00
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if (d->context)
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d->context->doneCurrent();
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2011-04-26 14:21:58 +00:00
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d->window = new QWindow;
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d->window->setGeometry(QRect(0, 0, 3, 3));
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d->window->setSurfaceType(QWindow::OpenGLSurface);
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d->window->create();
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d->window->glContext()->makeCurrent();
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2011-04-27 10:05:43 +00:00
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}
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QGLTemporaryContext::~QGLTemporaryContext()
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{
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if (d->context)
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d->context->makeCurrent();
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2011-04-26 14:21:58 +00:00
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else
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d->window->glContext()->doneCurrent();
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delete d->window;
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2011-04-27 10:05:43 +00:00
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}
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bool QGLWidgetPrivate::renderCxPm(QPixmap*)
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{
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return false;
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}
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/*! \internal
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Free up any allocated colormaps. This fn is only called for
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top-level widgets.
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*/
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void QGLWidgetPrivate::cleanupColormaps()
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{
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}
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void QGLWidget::setMouseTracking(bool enable)
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{
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Q_UNUSED(enable);
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}
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bool QGLWidget::event(QEvent *e)
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{
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return QWidget::event(e);
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}
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void QGLWidget::resizeEvent(QResizeEvent *e)
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{
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Q_D(QGLWidget);
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QWidget::resizeEvent(e);
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if (!isValid())
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return;
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makeCurrent();
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if (!d->glcx->initialized())
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glInit();
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resizeGL(width(), height());
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}
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const QGLContext* QGLWidget::overlayContext() const
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{
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return 0;
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}
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void QGLWidget::makeOverlayCurrent()
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{
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}
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void QGLWidget::updateOverlayGL()
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{
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}
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const QGLColormap & QGLWidget::colormap() const
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{
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Q_D(const QGLWidget);
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return d->cmap;
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}
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void QGLWidget::setColormap(const QGLColormap & c)
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{
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Q_UNUSED(c);
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}
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2011-04-26 14:21:58 +00:00
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QGLContext::QGLContext(QWindowContext *windowContext)
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2011-04-27 10:05:43 +00:00
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: d_ptr(new QGLContextPrivate(this))
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{
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Q_D(QGLContext);
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2011-04-26 14:21:58 +00:00
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d->init(0,QGLFormat::fromWindowFormat(windowContext->handle()->windowFormat()));
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d->windowContext = windowContext;
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d->windowContext->setQGLContextHandle(this,qDeleteQGLContext);
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2011-04-27 10:05:43 +00:00
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d->valid = true;
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d->setupSharing();
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}
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2011-04-26 14:21:58 +00:00
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QGLContext *QGLContext::fromWindowContext(QWindowContext *windowContext)
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2011-04-27 10:05:43 +00:00
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{
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2011-04-26 14:21:58 +00:00
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if (!windowContext)
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2011-04-27 10:05:43 +00:00
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return 0;
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2011-04-26 14:21:58 +00:00
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if (windowContext->qGLContextHandle()) {
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return reinterpret_cast<QGLContext *>(windowContext->qGLContextHandle());
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2011-04-27 10:05:43 +00:00
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}
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2011-04-26 14:21:58 +00:00
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QGLContext *glContext = new QGLContext(windowContext);
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2011-04-27 10:05:43 +00:00
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//Dont call create on context. This can cause the platformFormat to be set on the widget, which
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//will cause the platformWindow to be recreated.
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return glContext;
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}
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QT_END_NAMESPACE
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