diff options
Diffstat (limited to 'src/datavisualizationqml2/declarativebarsrenderer.cpp')
-rw-r--r-- | src/datavisualizationqml2/declarativebarsrenderer.cpp | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/datavisualizationqml2/declarativebarsrenderer.cpp b/src/datavisualizationqml2/declarativebarsrenderer.cpp new file mode 100644 index 00000000..3925e062 --- /dev/null +++ b/src/datavisualizationqml2/declarativebarsrenderer.cpp @@ -0,0 +1,87 @@ +/**************************************************************************** +** +** Copyright (C) 2013 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 "declarativebarsrenderer_p.h" + +#include <QtQuick/QQuickWindow> +#include <QtGui/QOpenGLFramebufferObject> + +QT_DATAVISUALIZATION_BEGIN_NAMESPACE + +DeclarativeBarsRenderer::DeclarativeBarsRenderer(QQuickWindow *window, Bars3DController *renderer) + : m_fbo(0), + m_texture(0), + m_window(window), + m_barsRenderer(renderer) +{ + connect(m_window, &QQuickWindow::beforeSynchronizing, this, + &DeclarativeBarsRenderer::synchDataToRenderer, Qt::DirectConnection); + connect(m_window, &QQuickWindow::beforeRendering, this, + &DeclarativeBarsRenderer::renderFBO, Qt::DirectConnection); + connect(m_barsRenderer, &Abstract3DController::needRender, m_window, + &QQuickWindow::update); +} + +DeclarativeBarsRenderer::~DeclarativeBarsRenderer() +{ + delete m_texture; + delete m_fbo; +} + +void DeclarativeBarsRenderer::synchDataToRenderer() +{ + m_barsRenderer->initializeOpenGL(); + m_barsRenderer->synchDataToRenderer(); +} + +void DeclarativeBarsRenderer::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 + // TODO: Can be gotten rid of once support for texture flipping becomes available (in Qt5.2) + 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); + //qDebug() << "create node" << m_fbo->handle() << m_texture->textureId() << m_fbo->size(); + } + + // Call the shared rendering function + m_fbo->bind(); + + m_barsRenderer->render(m_fbo->handle()); + + m_fbo->release(); +} + +QT_DATAVISUALIZATION_END_NAMESPACE |