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Diffstat (limited to 'src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater.cpp')
-rw-r--r-- | src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater.cpp | 309 |
1 files changed, 309 insertions, 0 deletions
diff --git a/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater.cpp b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater.cpp new file mode 100644 index 0000000000..4937565aa9 --- /dev/null +++ b/src/quick/scenegraph/adaptations/software/qsgsoftwarerenderablenodeupdater.cpp @@ -0,0 +1,309 @@ +/**************************************************************************** +** +** 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. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qsgsoftwarerenderablenodeupdater_p.h" + +#include "qsgabstractsoftwarerenderer_p.h" +#include "qsgsoftwareinternalimagenode_p.h" +#include "qsgsoftwareinternalrectanglenode_p.h" +#include "qsgsoftwareglyphnode_p.h" +#include "qsgsoftwarepublicnodes_p.h" +#include "qsgsoftwarepainternode_p.h" +#include "qsgsoftwarepixmaptexture_p.h" + +#include <QtQuick/qsgsimplerectnode.h> +#include <QtQuick/qsgsimpletexturenode.h> +#include <QtQuick/qsgrendernode.h> + +QT_BEGIN_NAMESPACE + +QSGSoftwareRenderableNodeUpdater::QSGSoftwareRenderableNodeUpdater(QSGAbstractSoftwareRenderer *renderer) + : m_renderer(renderer) +{ + m_opacityState.push(1.0f); + // Invalid RectF by default for no clip + m_clipState.push(QRegion()); + m_hasClip = false; + m_transformState.push(QTransform()); +} + +QSGSoftwareRenderableNodeUpdater::~QSGSoftwareRenderableNodeUpdater() +{ + +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGTransformNode *node) +{ + m_transformState.push(node->matrix().toTransform() * m_transformState.top()); + m_stateMap[node] = currentState(node); + return true; +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGTransformNode *) +{ + m_transformState.pop(); +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGClipNode *node) +{ + // Make sure to translate the clip rect into world coordinates + if (m_clipState.count() == 1) { + m_clipState.push(m_transformState.top().map(QRegion(node->clipRect().toRect()))); + m_hasClip = true; + } else { + const QRegion transformedClipRect = m_transformState.top().map(QRegion(node->clipRect().toRect())); + m_clipState.push(transformedClipRect.intersected(m_clipState.top())); + } + m_stateMap[node] = currentState(node); + return true; +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGClipNode *) +{ + m_clipState.pop(); + if (m_clipState.count() == 1) + m_hasClip = false; +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGGeometryNode *node) +{ + if (QSGSimpleRectNode *rectNode = dynamic_cast<QSGSimpleRectNode *>(node)) { + return updateRenderableNode(QSGSoftwareRenderableNode::SimpleRect, rectNode); + } else if (QSGSimpleTextureNode *tn = dynamic_cast<QSGSimpleTextureNode *>(node)) { + return updateRenderableNode(QSGSoftwareRenderableNode::SimpleTexture, tn); + } else if (QSGNinePatchNode *nn = dynamic_cast<QSGNinePatchNode *>(node)) { + return updateRenderableNode(QSGSoftwareRenderableNode::NinePatch, nn); + } else if (QSGRectangleNode *rn = dynamic_cast<QSGRectangleNode *>(node)) { + return updateRenderableNode(QSGSoftwareRenderableNode::SimpleRectangle, rn); + } else if (QSGImageNode *n = dynamic_cast<QSGImageNode *>(node)) { + return updateRenderableNode(QSGSoftwareRenderableNode::SimpleImage, n); + } else { + // We dont know, so skip + return false; + } +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGGeometryNode *) +{ +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGOpacityNode *node) +{ + m_opacityState.push(m_opacityState.top() * node->opacity()); + m_stateMap[node] = currentState(node); + return true; +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGOpacityNode *) +{ + m_opacityState.pop(); +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGInternalImageNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::Image, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGInternalImageNode *) +{ +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGPainterNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::Painter, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGPainterNode *) +{ +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGInternalRectangleNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::Rectangle, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGInternalRectangleNode *) +{ +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGGlyphNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::Glyph, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGGlyphNode *) +{ +} + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGRootNode *node) +{ + m_stateMap[node] = currentState(node); + return true; +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGRootNode *) +{ +} + +#if QT_CONFIG(quick_sprite) +bool QSGSoftwareRenderableNodeUpdater::visit(QSGSpriteNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::SpriteNode, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGSpriteNode *) +{ + +} +#endif + +bool QSGSoftwareRenderableNodeUpdater::visit(QSGRenderNode *node) +{ + return updateRenderableNode(QSGSoftwareRenderableNode::RenderNode, node); +} + +void QSGSoftwareRenderableNodeUpdater::endVisit(QSGRenderNode *) +{ +} + +void QSGSoftwareRenderableNodeUpdater::updateNodes(QSGNode *node, bool isNodeRemoved) +{ + m_opacityState.clear(); + m_clipState.clear(); + m_transformState.clear(); + + auto parentNode = node->parent(); + // If the node was deleted, it will have no parent + // check if the state map has the previous parent + if ((!parentNode || isNodeRemoved ) && m_stateMap.contains(node)) + parentNode = m_stateMap[node].parent; + + // If we find a parent, use its state for updating the new children + if (parentNode && m_stateMap.contains(parentNode)) { + auto state = m_stateMap[parentNode]; + m_opacityState.push(state.opacity); + m_transformState.push(state.transform); + m_clipState.push(state.clip); + m_hasClip = state.hasClip; + } else { + // There is no parent, and no previous parent, so likely a root node + m_opacityState.push(1.0f); + m_transformState.push(QTransform()); + m_clipState.push(QRegion()); + m_hasClip = false; + } + + // If the node is being removed, then cleanup the state data + // Then just visit the children without visiting the now removed node + if (isNodeRemoved) { + m_stateMap.remove(node); + return; + } + + // Visit the current node itself first + switch (node->type()) { + case QSGNode::ClipNodeType: { + QSGClipNode *c = static_cast<QSGClipNode*>(node); + if (visit(c)) + visitChildren(c); + endVisit(c); + break; + } + case QSGNode::TransformNodeType: { + QSGTransformNode *c = static_cast<QSGTransformNode*>(node); + if (visit(c)) + visitChildren(c); + endVisit(c); + break; + } + case QSGNode::OpacityNodeType: { + QSGOpacityNode *c = static_cast<QSGOpacityNode*>(node); + if (visit(c)) + visitChildren(c); + endVisit(c); + break; + } + case QSGNode::GeometryNodeType: { + if (node->flags() & QSGNode::IsVisitableNode) { + QSGVisitableNode *v = static_cast<QSGVisitableNode*>(node); + v->accept(this); + } else { + QSGGeometryNode *c = static_cast<QSGGeometryNode*>(node); + if (visit(c)) + visitChildren(c); + endVisit(c); + } + break; + } + case QSGNode::RootNodeType: { + QSGRootNode *root = static_cast<QSGRootNode*>(node); + if (visit(root)) + visitChildren(root); + endVisit(root); + break; + } + case QSGNode::BasicNodeType: { + visitChildren(node); + break; + } + case QSGNode::RenderNodeType: { + QSGRenderNode *r = static_cast<QSGRenderNode*>(node); + if (visit(r)) + visitChildren(r); + endVisit(r); + break; + } + default: + Q_UNREACHABLE(); + break; + } +} + +QSGSoftwareRenderableNodeUpdater::NodeState QSGSoftwareRenderableNodeUpdater::currentState(QSGNode *node) const +{ + NodeState state; + state.opacity = m_opacityState.top(); + state.clip = m_clipState.top(); + state.hasClip = m_hasClip; + state.transform = m_transformState.top(); + state.parent = node->parent(); + return state; +} + +QT_END_NAMESPACE |