| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
| 3 | |
| 4 | #ifndef QSGSOFTWARERENDERABLENODEUPDATER_H |
| 5 | #define QSGSOFTWARERENDERABLENODEUPDATER_H |
| 6 | |
| 7 | // |
| 8 | // W A R N I N G |
| 9 | // ------------- |
| 10 | // |
| 11 | // This file is not part of the Qt API. It exists purely as an |
| 12 | // implementation detail. This header file may change from version to |
| 13 | // version without notice, or even be removed. |
| 14 | // |
| 15 | // We mean it. |
| 16 | // |
| 17 | |
| 18 | #include "qsgsoftwarerenderablenode_p.h" |
| 19 | #include "qsgabstractsoftwarerenderer_p.h" |
| 20 | |
| 21 | #include <private/qsgadaptationlayer_p.h> |
| 22 | |
| 23 | #include <QTransform> |
| 24 | #include <QStack> |
| 25 | #include <QRectF> |
| 26 | |
| 27 | QT_BEGIN_NAMESPACE |
| 28 | |
| 29 | class QSGSoftwareRenderableNodeUpdater : public QSGNodeVisitorEx |
| 30 | { |
| 31 | public: |
| 32 | QSGSoftwareRenderableNodeUpdater(QSGAbstractSoftwareRenderer *renderer); |
| 33 | virtual ~QSGSoftwareRenderableNodeUpdater(); |
| 34 | |
| 35 | bool visit(QSGTransformNode *) override; |
| 36 | void endVisit(QSGTransformNode *) override; |
| 37 | bool visit(QSGClipNode *) override; |
| 38 | void endVisit(QSGClipNode *) override; |
| 39 | bool visit(QSGGeometryNode *) override; |
| 40 | void endVisit(QSGGeometryNode *) override; |
| 41 | bool visit(QSGOpacityNode *) override; |
| 42 | void endVisit(QSGOpacityNode *) override; |
| 43 | bool visit(QSGInternalImageNode *) override; |
| 44 | void endVisit(QSGInternalImageNode *) override; |
| 45 | bool visit(QSGPainterNode *) override; |
| 46 | void endVisit(QSGPainterNode *) override; |
| 47 | bool visit(QSGInternalRectangleNode *) override; |
| 48 | void endVisit(QSGInternalRectangleNode *) override; |
| 49 | bool visit(QSGGlyphNode *) override; |
| 50 | void endVisit(QSGGlyphNode *) override; |
| 51 | bool visit(QSGRootNode *) override; |
| 52 | void endVisit(QSGRootNode *) override; |
| 53 | #if QT_CONFIG(quick_sprite) |
| 54 | bool visit(QSGSpriteNode *) override; |
| 55 | void endVisit(QSGSpriteNode *) override; |
| 56 | #endif |
| 57 | bool visit(QSGRenderNode *) override; |
| 58 | void endVisit(QSGRenderNode *) override; |
| 59 | |
| 60 | void updateNodes(QSGNode *node, bool isNodeRemoved = false); |
| 61 | |
| 62 | private: |
| 63 | struct NodeState { |
| 64 | float opacity; |
| 65 | QRegion clip; |
| 66 | bool hasClip; |
| 67 | QTransform transform; |
| 68 | QSGNode *parent; |
| 69 | }; |
| 70 | |
| 71 | NodeState currentState(QSGNode *node) const; |
| 72 | |
| 73 | template<class NODE> |
| 74 | bool updateRenderableNode(QSGSoftwareRenderableNode::NodeType type, NODE *node); |
| 75 | |
| 76 | QSGAbstractSoftwareRenderer *m_renderer; |
| 77 | QStack<float> m_opacityState; |
| 78 | QStack<QRegion> m_clipState; |
| 79 | bool m_hasClip; |
| 80 | QStack<QTransform> m_transformState; |
| 81 | QHash<QSGNode*,NodeState> m_stateMap; |
| 82 | }; |
| 83 | |
| 84 | template<class NODE> |
| 85 | bool QSGSoftwareRenderableNodeUpdater::updateRenderableNode(QSGSoftwareRenderableNode::NodeType type, NODE *node) |
| 86 | { |
| 87 | //Check if we already know about node |
| 88 | auto renderableNode = m_renderer->renderableNode(node); |
| 89 | if (renderableNode == nullptr) { |
| 90 | renderableNode = new QSGSoftwareRenderableNode(type, node); |
| 91 | m_renderer->addNodeMapping(node, renderableNode); |
| 92 | } |
| 93 | |
| 94 | //Update the node |
| 95 | renderableNode->setTransform(m_transformState.top()); |
| 96 | renderableNode->setOpacity(m_opacityState.top()); |
| 97 | renderableNode->setClipRegion(m_clipState.top(), m_hasClip); |
| 98 | |
| 99 | renderableNode->update(); |
| 100 | m_stateMap[node] = currentState(node); |
| 101 | |
| 102 | return true; |
| 103 | } |
| 104 | |
| 105 | QT_END_NAMESPACE |
| 106 | |
| 107 | #endif // QSGSOFTWARERENDERABLENODEUPDATER_H |
| 108 |