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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D 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 "qrendertarget.h"
#include "qrendertarget_p.h"
#include "qrendertargetoutput.h"
QT_BEGIN_NAMESPACE
using namespace Qt3DCore;
namespace Qt3DRender {
/*!
\class Qt3DRender::QRenderTarget
\brief The QRenderTarget class encapsulates a target (usually a frame buffer
object) which the renderer can render into.
\since 5.7
\inmodule Qt3DRender
A Qt3DRender::QRenderTarget comprises of Qt3DRender::QRenderTargetOutput objects,
which specify the the buffers the render target is rendering to. The user can
specify MRT(Multiple Render Targets) by attaching multiple textures to different
attachment points. The results are undefined if the user tries to attach multiple
textures to the same attachment point. At render time, only the draw buffers specified
in the Qt3DRender::QRenderTargetSelector are used.
*/
/*!
\qmltype RenderTarget
\brief The RenderTarget class encapsulates a target (usually a frame buffer
object) which the renderer can render into.
\since 5.7
\inqmlmodule Qt3D.Render
\instantiates Qt3DRender::QRenderTarget
A RenderTarget comprises of RenderTargetOutput objects, which specify the the buffers
the render target is rendering to. The user can specify MRT(Multiple Render Targets)
by attaching multiple textures to different attachment points. The results are undefined
if the user tries to attach multiple textures to the same attachment point. At render
time, only the draw buffers specified in the RenderTargetSelector are used.
*/
/*!
\qmlproperty list<RenderTargetOutput> RenderTarget::attachments
Holds the attachments for the RenderTarget.
*/
/*! \internal */
QRenderTargetPrivate::QRenderTargetPrivate()
: QComponentPrivate()
{
}
/*!
The constructor creates a new QRenderTarget::QRenderTarget instance with
the specified \a parent.
*/
QRenderTarget::QRenderTarget(QNode *parent)
: QComponent(*new QRenderTargetPrivate, parent)
{
}
/*! \internal */
QRenderTarget::~QRenderTarget()
{
}
/*! \internal */
QRenderTarget::QRenderTarget(QRenderTargetPrivate &dd, QNode *parent)
: QComponent(dd, parent)
{
}
/*!
Adds a chosen output via \a output.
*/
void QRenderTarget::addOutput(QRenderTargetOutput *output)
{
Q_D(QRenderTarget);
if (output && !d->m_outputs.contains(output)) {
d->m_outputs.append(output);
// Ensures proper bookkeeping
d->registerDestructionHelper(output, &QRenderTarget::removeOutput, d->m_outputs);
if (!output->parent())
output->setParent(this);
d->update();
}
}
/*!
Removes a chosen output via \a output.
*/
void QRenderTarget::removeOutput(QRenderTargetOutput *output)
{
Q_D(QRenderTarget);
d->update();
d->m_outputs.removeOne(output);
// Remove bookkeeping connection
d->unregisterDestructionHelper(output);
}
/*!
\return the chosen outputs.
*/
QVector<QRenderTargetOutput *> QRenderTarget::outputs() const
{
Q_D(const QRenderTarget);
return d->m_outputs;
}
Qt3DCore::QNodeCreatedChangeBasePtr QRenderTarget::createNodeCreationChange() const
{
auto creationChange = Qt3DCore::QNodeCreatedChangePtr<QRenderTargetData>::create(this);
auto &data = creationChange->data;
data.outputIds = qIdsForNodes(outputs());
return creationChange;
}
} // namespace Qt3DRender
QT_END_NAMESPACE
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