diff options
Diffstat (limited to 'src/datavisualizationqml2/declarativerendernode.cpp')
-rw-r--r-- | src/datavisualizationqml2/declarativerendernode.cpp | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/datavisualizationqml2/declarativerendernode.cpp b/src/datavisualizationqml2/declarativerendernode.cpp new file mode 100644 index 00000000..612d11df --- /dev/null +++ b/src/datavisualizationqml2/declarativerendernode.cpp @@ -0,0 +1,83 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Digia Plc +** All rights reserved. +** For any questions to Digia, please use contact form at http://qt.digia.com +** +** This file is part of the QtDataVisualization module. +** +** Licensees holding valid Qt Enterprise licenses may use this file in +** accordance with the Qt Enterprise License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Digia. +** +** If you have questions regarding the use of this file, please use +** contact form at http://qt.digia.com +** +****************************************************************************/ + +#include "declarativerendernode_p.h" +#include <QtQuick/QQuickWindow> +#include <QtGui/QOpenGLFramebufferObject> + +QT_BEGIN_NAMESPACE_DATAVISUALIZATION + +DeclarativeRenderNode::DeclarativeRenderNode(QQuickWindow *window, Abstract3DController *controller, AbstractDeclarative::RenderingMode mode, QObject *parent) + : QObject(parent), + m_fbo(0), + m_texture(0), + m_window(window), + m_controller(controller), + m_mode(mode) +{ + connect(window, &QQuickWindow::beforeRendering, + this, &DeclarativeRenderNode::renderFBO, + Qt::DirectConnection); +} + +DeclarativeRenderNode::~DeclarativeRenderNode() +{ + delete m_texture; + delete m_fbo; +} + +void DeclarativeRenderNode::renderFBO() +{ + QSize size = rect().size().toSize(); + + // Create FBO + if (!m_fbo) { + QOpenGLFramebufferObjectFormat format; + format.setAttachment(QOpenGLFramebufferObject::Depth); + m_fbo = new QOpenGLFramebufferObject(size, format); + m_texture = m_window->createTextureFromId(m_fbo->texture(), size); + + setTexture(m_texture); + + // Flip texture + QSize ts = m_texture->textureSize(); + QRectF sourceRect(0, 0, ts.width(), ts.height()); + float tmp = sourceRect.top(); + sourceRect.setTop(sourceRect.bottom()); + sourceRect.setBottom(tmp); + QSGGeometry *geometry = this->geometry(); + QSGGeometry::updateTexturedRectGeometry(geometry, rect(), + m_texture->convertToNormalizedSourceRect(sourceRect)); + markDirty(DirtyMaterial); + } + + // Call the shared rendering function + m_fbo->bind(); + glDisable(GL_BLEND); + + m_controller->render(m_fbo->handle()); + + glEnable(GL_BLEND); + + m_fbo->release(); + + // New view is in the FBO, request repaint of scene graph + m_window->update(); +} + +QT_END_NAMESPACE_DATAVISUALIZATION |