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+/****************************************************************************
+**
+** 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