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Diffstat (limited to 'src/opengl/qgl_qpa.cpp')
| -rw-r--r-- | src/opengl/qgl_qpa.cpp | 393 |
1 files changed, 393 insertions, 0 deletions
diff --git a/src/opengl/qgl_qpa.cpp b/src/opengl/qgl_qpa.cpp new file mode 100644 index 0000000..0f4b305 --- /dev/null +++ b/src/opengl/qgl_qpa.cpp @@ -0,0 +1,393 @@ +/**************************************************************************** +** +** Copyright (C) 2010 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 <QApplication> +#include <QtGui/private/qapplication_p.h> +#include <QPixmap> +#include <QDebug> + +#include <QtGui/private/qapplication_p.h> +#include <QtGui/QPlatformWindow> + +#include "qgl.h" +#include "qgl_p.h" + +QT_BEGIN_NAMESPACE + +QGLFormat QGLFormat::fromPlatformWindowFormat(const QPlatformWindowFormat &format) +{ + QGLFormat retFormat; + retFormat.setAccum(format.accum()); + if (format.accumBufferSize() >= 0) + retFormat.setAccumBufferSize(format.accumBufferSize()); + retFormat.setAlpha(format.alpha()); + if (format.alphaBufferSize() >= 0) + retFormat.setAlphaBufferSize(format.alphaBufferSize()); + if (format.blueBufferSize() >= 0) + retFormat.setBlueBufferSize(format.blueBufferSize()); + retFormat.setDepth(format.depth()); + if (format.depthBufferSize() >= 0) + retFormat.setDepthBufferSize(format.depthBufferSize()); + retFormat.setDirectRendering(format.directRendering()); + retFormat.setDoubleBuffer(format.doubleBuffer()); + if (format.greenBufferSize() >= 0) + retFormat.setGreenBufferSize(format.greenBufferSize()); + if (format.redBufferSize() >= 0) + retFormat.setRedBufferSize(format.redBufferSize()); + retFormat.setRgba(format.rgba()); + retFormat.setSampleBuffers(format.sampleBuffers()); + retFormat.setSamples(format.sampleBuffers()); + retFormat.setStencil(format.stencil()); + if (format.stencilBufferSize() >= 0) + retFormat.setStencilBufferSize(format.stencilBufferSize()); + retFormat.setStereo(format.stereo()); + retFormat.setSwapInterval(format.swapInterval()); + return retFormat; +} + +QPlatformWindowFormat QGLFormat::toPlatformWindowFormat(const QGLFormat &format) +{ + QPlatformWindowFormat retFormat; + retFormat.setAccum(format.accum()); + if (format.accumBufferSize() >= 0) + retFormat.setAccumBufferSize(format.accumBufferSize()); + retFormat.setAlpha(format.alpha()); + if (format.alphaBufferSize() >= 0) + retFormat.setAlphaBufferSize(format.alphaBufferSize()); + if (format.blueBufferSize() >= 0) + retFormat.setBlueBufferSize(format.blueBufferSize()); + retFormat.setDepth(format.depth()); + if (format.depthBufferSize() >= 0) + retFormat.setDepthBufferSize(format.depthBufferSize()); + retFormat.setDirectRendering(format.directRendering()); + retFormat.setDoubleBuffer(format.doubleBuffer()); + if (format.greenBufferSize() >= 0) + retFormat.setGreenBufferSize(format.greenBufferSize()); + if (format.redBufferSize() >= 0) + retFormat.setRedBufferSize(format.redBufferSize()); + retFormat.setRgba(format.rgba()); + retFormat.setSampleBuffers(format.sampleBuffers()); + if (format.samples() >= 0) + retFormat.setSamples(format.samples()); + retFormat.setStencil(format.stencil()); + if (format.stencilBufferSize() >= 0) + retFormat.setStencilBufferSize(format.stencilBufferSize()); + retFormat.setStereo(format.stereo()); + retFormat.setSwapInterval(format.swapInterval()); + return retFormat; +} + +void QGLContextPrivate::setupSharing() { + Q_Q(QGLContext); + QPlatformGLContext *sharedPlatformGLContext = platformContext->platformWindowFormat().sharedGLContext(); + if (sharedPlatformGLContext) { + QGLContext *actualSharedContext = QGLContext::fromPlatformGLContext(sharedPlatformGLContext); + sharing = true; + QGLContextGroup::addShare(q,actualSharedContext); + } +} + +bool QGLFormat::hasOpenGL() +{ + return QApplicationPrivate::platformIntegration()->hasOpenGL(); +} + +void qDeleteQGLContext(void *handle) +{ + QGLContext *context = static_cast<QGLContext *>(handle); + delete context; +} + +bool QGLContext::chooseContext(const QGLContext* shareContext) +{ + Q_D(QGLContext); + if(!d->paintDevice || d->paintDevice->devType() != QInternal::Widget) { + d->valid = false; + }else { + QWidget *widget = static_cast<QWidget *>(d->paintDevice); + if (!widget->platformWindow()){ + QGLFormat glformat = format(); + QPlatformWindowFormat winFormat = QGLFormat::toPlatformWindowFormat(glformat); + if (shareContext) { + winFormat.setSharedContext(shareContext->d_func()->platformContext); + } + winFormat.setWindowApi(QPlatformWindowFormat::OpenGL); + winFormat.setWindowSurface(false); + widget->setPlatformWindowFormat(winFormat); + widget->winId();//make window + } + d->platformContext = widget->platformWindow()->glContext(); + Q_ASSERT(d->platformContext); + d->glFormat = QGLFormat::fromPlatformWindowFormat(d->platformContext->platformWindowFormat()); + d->valid =(bool) d->platformContext; + if (d->valid) { + d->platformContext->setQGLContextHandle(this,qDeleteQGLContext); + } + d->setupSharing(); + } + + + return d->valid; +} + +void QGLContext::reset() +{ + Q_D(QGLContext); + if (!d->valid) + return; + d->cleanup(); + + d->crWin = false; + d->sharing = false; + d->valid = false; + d->transpColor = QColor(); + d->initDone = false; + QGLContextGroup::removeShare(this); + if (d->platformContext) { + d->platformContext->setQGLContextHandle(0,0); + } +} + +void QGLContext::makeCurrent() +{ + Q_D(QGLContext); + d->platformContext->makeCurrent(); + + if (!d->workaroundsCached) { + d->workaroundsCached = true; + const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER)); + if (renderer && strstr(renderer, "Mali")) { + d->workaround_brokenFBOReadBack = true; + } + } + +} + +void QGLContext::doneCurrent() +{ + Q_D(QGLContext); + d->platformContext->doneCurrent(); +} + +void QGLContext::swapBuffers() const +{ + Q_D(const QGLContext); + d->platformContext->swapBuffers(); +} + +void *QGLContext::getProcAddress(const QString &procName) const +{ + Q_D(const QGLContext); + return d->platformContext->getProcAddress(procName); +} + +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 (context->device() == 0) // a context may refere to more than 1 window. + context->setDevice(this); //but its better to point to 1 of them than none of them. + + 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) +{ + initContext(context, shareWidget); +} + +bool QGLFormat::hasOpenGLOverlays() +{ + return false; +} + +QColor QGLContext::overlayTransparentColor() const +{ + return QColor(); // Invalid color +} + +uint QGLContext::colorIndex(const QColor&) const +{ + return 0; +} + +void QGLContext::generateFontDisplayLists(const QFont & fnt, int listBase) +{ + Q_UNUSED(fnt); + Q_UNUSED(listBase); +} + +/* + QGLTemporaryContext implementation +*/ +class QGLTemporaryContextPrivate +{ +public: + QWidget *widget; + QPlatformGLContext *context; +}; + +QGLTemporaryContext::QGLTemporaryContext(bool, QWidget *) + : d(new QGLTemporaryContextPrivate) +{ + d->context = const_cast<QPlatformGLContext *>(QPlatformGLContext::currentContext()); + if (d->context) + d->context->doneCurrent(); + d->widget = new QWidget; + d->widget->setGeometry(0,0,3,3); + QPlatformWindowFormat format = d->widget->platformWindowFormat(); + format.setWindowApi(QPlatformWindowFormat::OpenGL); + format.setWindowSurface(false); + d->widget->setPlatformWindowFormat(format); + d->widget->winId(); + + d->widget->platformWindow()->glContext()->makeCurrent(); +} + +QGLTemporaryContext::~QGLTemporaryContext() +{ + d->widget->platformWindow()->glContext()->doneCurrent(); + if (d->context) + d->context->makeCurrent(); + delete d->widget; +} + + +bool QGLWidgetPrivate::renderCxPm(QPixmap*) +{ + return false; +} + +/*! \internal + Free up any allocated colormaps. This fn is only called for + top-level widgets. +*/ +void QGLWidgetPrivate::cleanupColormaps() +{ +} + +void QGLWidget::setMouseTracking(bool enable) +{ + Q_UNUSED(enable); +} + +bool QGLWidget::event(QEvent *e) +{ + Q_D(QGLWidget); + return QWidget::event(e); +} + +void QGLWidget::resizeEvent(QResizeEvent *e) +{ + Q_D(QGLWidget); + if (!isValid()) + return; + makeCurrent(); + if (!d->glcx->initialized()) + glInit(); + resizeGL(width(), height()); + return QWidget::resizeEvent(e); +} + + +const QGLContext* QGLWidget::overlayContext() const +{ + return 0; +} + +void QGLWidget::makeOverlayCurrent() +{ +} + + +void QGLWidget::updateOverlayGL() +{ +} + +const QGLColormap & QGLWidget::colormap() const +{ + Q_D(const QGLWidget); + return d->cmap; +} + +void QGLWidget::setColormap(const QGLColormap & c) +{ + Q_UNUSED(c); +} + +QGLContext::QGLContext(QPlatformGLContext *platformContext) + : d_ptr(new QGLContextPrivate(this)) +{ + Q_D(QGLContext); + d->init(0,QGLFormat::fromPlatformWindowFormat(platformContext->platformWindowFormat())); + d->platformContext = platformContext; + d->platformContext->setQGLContextHandle(this,qDeleteQGLContext); + d->valid = true; + d->setupSharing(); +} + +QGLContext *QGLContext::fromPlatformGLContext(QPlatformGLContext *platformContext) +{ + if (!platformContext) + return 0; + if (platformContext->qGLContextHandle()) { + return reinterpret_cast<QGLContext *>(platformContext->qGLContextHandle()); + } + QGLContext *glContext = new QGLContext(platformContext); + //Dont call create on context. This can cause the platformFormat to be set on the widget, which + //will cause the platformWindow to be recreated. + return glContext; +} + +QT_END_NAMESPACE |