diff options
Diffstat (limited to 'examples/quick/scenegraph/textureinsgnode/fboinsgrenderer.cpp')
-rw-r--r-- | examples/quick/scenegraph/textureinsgnode/fboinsgrenderer.cpp | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/examples/quick/scenegraph/textureinsgnode/fboinsgrenderer.cpp b/examples/quick/scenegraph/textureinsgnode/fboinsgrenderer.cpp new file mode 100644 index 0000000000..67df392555 --- /dev/null +++ b/examples/quick/scenegraph/textureinsgnode/fboinsgrenderer.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** 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" |