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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCanvas3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "renderjob_p.h"
#include "canvasrenderer_p.h"
#include "canvas3d_p.h"
#include <QtGui/QOpenGLContext>
QT_BEGIN_NAMESPACE
QT_CANVAS3D_BEGIN_NAMESPACE
/*!
* \class CanvasRenderJob
* \internal
* The CanvasRenderJob class is for synchronous render jobs used by QtCanvas3D.
* It takes care of synchronization.
*/
CanvasRenderJob::CanvasRenderJob(GlSyncCommand *command,
QMutex *mutex, QWaitCondition *condition,
CanvasRenderer *renderer, bool *deleted)
: m_command(command),
m_mutex(mutex),
m_condition(condition),
m_renderer(renderer),
m_deleted(deleted),
m_creationThread(QThread::currentThread())
{
}
CanvasRenderJob::~CanvasRenderJob()
{
if (m_creationThread != QThread::currentThread()) {
notifyGuiThread();
} else {
// If the job is deleted in the thread it was created in, we can assume the scheduling
// failed and notify the context that we got deleted via the m_deleted flag,
// so it won't start waiting for job to complete.
*m_deleted = true;
}
}
void CanvasRenderJob::run()
{
if (m_renderer && m_renderer->contextCreated()) {
// Move commands to execution queue
m_renderer->transferCommands();
// Change to canvas context, if needed
QOpenGLContext *oldContext(0);
QSurface *oldSurface(0);
if (!m_renderer->usingQtContext()) {
oldContext = QOpenGLContext::currentContext();
if (oldContext)
oldSurface = oldContext->surface();
m_renderer->makeCanvasContextCurrent();
}
// Execute pending queue
m_renderer->executeCommandQueue();
// Execute synchronous command (if there is one)
if (m_command)
m_renderer->executeSyncCommand(*m_command);
// Restore Qt context
if (m_renderer->usingQtContext()) {
m_renderer->resetQtOpenGLState();
} else {
if (oldContext && oldSurface) {
if (!oldContext->makeCurrent(oldSurface)) {
qCWarning(canvas3drendering).nospace() << "CanvasRenderJob::" << __FUNCTION__
<< " Failed to make old surface current";
}
}
}
}
notifyGuiThread();
}
void CanvasRenderJob::notifyGuiThread()
{
if (m_mutex) {
m_mutex->lock();
m_condition->wakeOne();
m_mutex->unlock();
m_mutex = 0;
}
}
QT_CANVAS3D_END_NAMESPACE
QT_END_NAMESPACE
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