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Diffstat (limited to 'src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater_p.h')
-rw-r--r-- | src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater_p.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater_p.h b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater_p.h new file mode 100644 index 0000000000..ca16f77c22 --- /dev/null +++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater_p.h @@ -0,0 +1,143 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQuick 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSGSOFTWARERENDERABLENODEUPDATER_H +#define QSGSOFTWARERENDERABLENODEUPDATER_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "qsgsoftwarerenderablenode_p.h" +#include "qsgabstractsoftwarerenderer_p.h" + +#include <private/qsgadaptationlayer_p.h> + +#include <QTransform> +#include <QStack> +#include <QRectF> + +QT_BEGIN_NAMESPACE + +class QSGSoftwareRenderableNodeUpdater : public QSGNodeVisitorEx +{ +public: + QSGSoftwareRenderableNodeUpdater(QSGAbstractSoftwareRenderer *renderer); + virtual ~QSGSoftwareRenderableNodeUpdater(); + + bool visit(QSGTransformNode *) override; + void endVisit(QSGTransformNode *) override; + bool visit(QSGClipNode *) override; + void endVisit(QSGClipNode *) override; + bool visit(QSGGeometryNode *) override; + void endVisit(QSGGeometryNode *) override; + bool visit(QSGOpacityNode *) override; + void endVisit(QSGOpacityNode *) override; + bool visit(QSGInternalImageNode *) override; + void endVisit(QSGInternalImageNode *) override; + bool visit(QSGPainterNode *) override; + void endVisit(QSGPainterNode *) override; + bool visit(QSGInternalRectangleNode *) override; + void endVisit(QSGInternalRectangleNode *) override; + bool visit(QSGGlyphNode *) override; + void endVisit(QSGGlyphNode *) override; + bool visit(QSGRootNode *) override; + void endVisit(QSGRootNode *) override; +#if QT_CONFIG(quick_sprite) + bool visit(QSGSpriteNode *) override; + void endVisit(QSGSpriteNode *) override; +#endif + bool visit(QSGRenderNode *) override; + void endVisit(QSGRenderNode *) override; + + void updateNodes(QSGNode *node, bool isNodeRemoved = false); + +private: + struct NodeState { + float opacity; + QRegion clip; + bool hasClip; + QTransform transform; + QSGNode *parent; + }; + + NodeState currentState(QSGNode *node) const; + + template<class NODE> + bool updateRenderableNode(QSGSoftwareRenderableNode::NodeType type, NODE *node); + + QSGAbstractSoftwareRenderer *m_renderer; + QStack<float> m_opacityState; + QStack<QRegion> m_clipState; + bool m_hasClip; + QStack<QTransform> m_transformState; + QHash<QSGNode*,NodeState> m_stateMap; +}; + +template<class NODE> +bool QSGSoftwareRenderableNodeUpdater::updateRenderableNode(QSGSoftwareRenderableNode::NodeType type, NODE *node) +{ + //Check if we already know about node + auto renderableNode = m_renderer->renderableNode(node); + if (renderableNode == nullptr) { + renderableNode = new QSGSoftwareRenderableNode(type, node); + m_renderer->addNodeMapping(node, renderableNode); + } + + //Update the node + renderableNode->setTransform(m_transformState.top()); + renderableNode->setOpacity(m_opacityState.top()); + renderableNode->setClipRegion(m_clipState.top(), m_hasClip); + + renderableNode->update(); + m_stateMap[node] = currentState(node); + + return true; +} + +QT_END_NAMESPACE + +#endif // QSGSOFTWARERENDERABLENODEUPDATER_H |