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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "fboinsgrenderer.h"
#include "logorenderer.h"
#include <QtGui/QOpenGLFramebufferObject>
#include <QtQuick/QQuickWindow>
#include <qsgsimpletexturenode.h>
class TextureNode : public QObject, public QSGSimpleTextureNode
{
Q_OBJECT
public:
TextureNode(QQuickWindow *window)
: m_fbo(0)
, m_texture(0)
, m_window(window)
, m_logoRenderer(0)
{
connect(m_window, SIGNAL(beforeRendering()), this, SLOT(renderFBO()));
}
~TextureNode()
{
delete m_texture;
delete m_fbo;
delete m_logoRenderer;
}
public slots:
void renderFBO()
{
QSize size = rect().size().toSize();
if (!m_fbo) {
QOpenGLFramebufferObjectFormat format;
format.setAttachment(QOpenGLFramebufferObject::CombinedDepthStencil);
m_fbo = new QOpenGLFramebufferObject(size, format);
m_texture = m_window->createTextureFromId(m_fbo->texture(), size);
m_logoRenderer = new LogoRenderer();
m_logoRenderer->initialize();
setTexture(m_texture);
}
m_fbo->bind();
glViewport(0, 0, size.width(), size.height());
m_logoRenderer->render();
m_fbo->bindDefault();
m_window->update();
}
private:
QOpenGLFramebufferObject *m_fbo;
QSGTexture *m_texture;
QQuickWindow *m_window;
LogoRenderer *m_logoRenderer;
};
FboInSGRenderer::FboInSGRenderer()
{
setFlag(ItemHasContents, true);
}
QSGNode *FboInSGRenderer::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *)
{
// Don't bother with resize and such, just recreate the node from scratch
// when geometry changes.
if (oldNode)
delete oldNode;
TextureNode *node = new TextureNode(window());
node->setRect(boundingRect());
return node;
}
#include "fboinsgrenderer.moc"
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