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diff --git a/tests/auto/declarative/node/tst_nodestest.cpp b/tests/auto/declarative/node/tst_nodestest.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt scene graph research project.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/QString>
+#include <QtTest/QtTest>
+
+#include <qsgnode.h>
+#include <private/qsgrenderer_p.h>
+#include <private/qsgnodeupdater_p.h>
+
+#include <qsgsimplerectnode.h>
+
+class NodesTest : public QObject
+{
+ Q_OBJECT
+
+public:
+ NodesTest();
+
+private Q_SLOTS:
+ void initTestCase();
+ void cleanupTestCase() {
+ delete widget;
+ }
+
+ // Root nodes
+ void propegate();
+ void propegateWithMultipleRoots();
+ void simulatedEffect_data();
+ void simulatedEffect();
+
+ // Opacity nodes
+ void basicOpacityNode();
+ void opacityPropegation();
+
+ // QSGNodeUpdater
+ void isBlockedCheck();
+
+private:
+ QGLWidget *widget;
+
+ QSGNodeUpdater updater;
+};
+
+void NodesTest::initTestCase()
+{
+ widget = new QGLWidget();
+ widget->resize(100, 30);
+ widget->show();
+}
+
+class DummyRenderer : public QSGRenderer
+{
+public:
+ DummyRenderer(QSGRootNode *root)
+ : QSGRenderer(QSGContext::createDefaultContext())
+ , changedNode(0)
+ , changedFlags(0)
+ , renderCount(0)
+ {
+ setRootNode(root);
+ }
+
+ void render() {
+ ++renderCount;
+ renderingOrder = ++globalRendereringOrder;
+ }
+
+ void nodeChanged(QSGNode *node, QSGNode::DirtyFlags flags) {
+ changedNode = node;
+ changedFlags = flags;
+ QSGRenderer::nodeChanged(node, flags);
+ }
+
+ QSGNode *changedNode;
+ QSGNode::DirtyFlags changedFlags;
+
+ int renderCount;
+ int renderingOrder;
+ static int globalRendereringOrder;
+};
+
+int DummyRenderer::globalRendereringOrder;
+
+NodesTest::NodesTest()
+{
+}
+
+
+void NodesTest::propegate()
+{
+ QSGRootNode root;
+ QSGNode child; child.setFlag(QSGNode::OwnedByParent, false);
+ root.appendChildNode(&child);
+
+ DummyRenderer renderer(&root);
+
+ child.markDirty(QSGNode::DirtyGeometry);
+
+ QCOMPARE(&child, renderer.changedNode);
+ QCOMPARE((int) renderer.changedFlags, (int) QSGNode::DirtyGeometry);
+}
+
+
+void NodesTest::propegateWithMultipleRoots()
+{
+ QSGRootNode root1;
+ QSGNode child2; child2.setFlag(QSGNode::OwnedByParent, false);
+ QSGRootNode root3; root3.setFlag(QSGNode::OwnedByParent, false);
+ QSGNode child4; child4.setFlag(QSGNode::OwnedByParent, false);
+
+ root1.appendChildNode(&child2);
+ child2.appendChildNode(&root3);
+ root3.appendChildNode(&child4);
+
+ DummyRenderer ren1(&root1);
+ DummyRenderer ren2(&root3);
+
+ child4.markDirty(QSGNode::DirtyGeometry);
+
+ QCOMPARE(ren1.changedNode, &child4);
+ QCOMPARE(ren2.changedNode, &child4);
+
+ QCOMPARE((int) ren1.changedFlags, (int) QSGNode::DirtyGeometry);
+ QCOMPARE((int) ren2.changedFlags, (int) QSGNode::DirtyGeometry);
+}
+
+
+
+class SimulatedEffectRenderer : public DummyRenderer
+{
+public:
+ SimulatedEffectRenderer(QSGRootNode *root, QSGBasicGeometryNode *c)
+ : DummyRenderer(root)
+ {
+ child = c;
+ }
+
+ void render() {
+ matrix = child->matrix() ? *child->matrix() : QMatrix4x4();
+ DummyRenderer::render();
+ }
+
+ QSGBasicGeometryNode *child;
+ QMatrix4x4 matrix;
+};
+
+
+class PseudoEffectNode : public QSGNode {
+public:
+ PseudoEffectNode(QSGRenderer *r)
+ : renderer(r)
+ {
+ setFlag(UsePreprocess);
+ }
+
+ void preprocess() {
+
+ if (renderer->rootNode()->parent()) {
+ // Mark the root dirty to build a clean state from the root and down
+ renderer->rootNode()->markDirty(QSGNode::DirtyAll);
+ }
+
+ renderer->renderScene();
+
+ if (renderer->rootNode()->parent()) {
+ // Mark the parent of the root dirty to force the root and down to be updated.
+ renderer->rootNode()->parent()->markDirty(QSGNode::DirtyAll);
+ }
+ }
+
+ QSGRenderer *renderer;
+};
+
+void NodesTest::simulatedEffect_data()
+{
+ QTest::addColumn<bool>("connected");
+
+ QTest::newRow("connected") << true;
+ QTest::newRow("disconnected") << false;
+}
+
+void NodesTest::simulatedEffect()
+{
+ QFETCH(bool, connected);
+
+ QSGRootNode root;
+ QSGRootNode source;
+ QSGTransformNode xform;
+ QSGSimpleRectNode geometry;
+ geometry.setRect(QRectF(0, 0, 1, 1));
+ geometry.setColor(Qt::red);
+
+ root.setFlag(QSGNode::OwnedByParent, false);
+ source.setFlag(QSGNode::OwnedByParent, false);
+ xform.setFlag(QSGNode::OwnedByParent, false);
+ geometry.setFlag(QSGNode::OwnedByParent, false);
+
+ SimulatedEffectRenderer rootRenderer(&root, &geometry);
+ SimulatedEffectRenderer sourceRenderer(&source, &geometry);
+
+ PseudoEffectNode effect(&sourceRenderer);
+
+ /*
+ root Source is redirected into effect using the SimulatedEffectRenderer
+ / \
+ xform effect
+ |
+ source
+ |
+ geometry
+ */
+
+ root.appendChildNode(&xform);
+ root.appendChildNode(&effect);
+ if (connected)
+ xform.appendChildNode(&source);
+ source.appendChildNode(&geometry);
+ QMatrix4x4 m; m.translate(1, 2, 3);
+ xform.setMatrix(m);
+
+ // Clear all dirty states...
+ updater.updateStates(&root);
+
+ rootRenderer.renderScene();
+
+ // compare that we got one render call to each
+ QCOMPARE(rootRenderer.renderCount, 1);
+ QCOMPARE(sourceRenderer.renderCount, 1);
+ QVERIFY(sourceRenderer.renderingOrder < rootRenderer.renderingOrder);
+ if (connected) // geometry is not rendered in this case, so skip it...
+ QCOMPARE(rootRenderer.matrix, xform.matrix());
+ QCOMPARE(sourceRenderer.matrix, QMatrix4x4());
+}
+
+void NodesTest::basicOpacityNode()
+{
+ QSGOpacityNode n;
+ QCOMPARE(n.opacity(), 1.);
+
+ n.setOpacity(0.5);
+ QCOMPARE(n.opacity(), 0.5);
+
+ n.setOpacity(-1);
+ QCOMPARE(n.opacity(), 0.);
+
+ n.setOpacity(2);
+ QCOMPARE(n.opacity(), 1.);
+}
+
+void NodesTest::opacityPropegation()
+{
+ QSGRootNode root;
+ QSGOpacityNode *a = new QSGOpacityNode;
+ QSGOpacityNode *b = new QSGOpacityNode;
+ QSGOpacityNode *c = new QSGOpacityNode;
+
+ QSGSimpleRectNode *geometry = new QSGSimpleRectNode;
+ geometry->setRect(0, 0, 100, 100);
+
+ root.appendChildNode(a);
+ a->appendChildNode(b);
+ b->appendChildNode(c);
+ c->appendChildNode(geometry);
+
+ a->setOpacity(0.9);
+ b->setOpacity(0.8);
+ c->setOpacity(0.7);
+
+ updater.updateStates(&root);
+
+ QCOMPARE(a->combinedOpacity(), 0.9);
+ QCOMPARE(b->combinedOpacity(), 0.9 * 0.8);
+ QCOMPARE(c->combinedOpacity(), 0.9 * 0.8 * 0.7);
+ QCOMPARE(geometry->inheritedOpacity(), 0.9 * 0.8 * 0.7);
+
+ b->setOpacity(0.1);
+ updater.updateStates(&root);
+
+ QCOMPARE(a->combinedOpacity(), 0.9);
+ QCOMPARE(b->combinedOpacity(), 0.9 * 0.1);
+ QCOMPARE(c->combinedOpacity(), 0.9 * 0.1 * 0.7);
+ QCOMPARE(geometry->inheritedOpacity(), 0.9 * 0.1 * 0.7);
+
+ b->setOpacity(0);
+ updater.updateStates(&root);
+
+ QVERIFY(b->isSubtreeBlocked());
+
+ // Verify that geometry did not get updated as it is in a blocked
+ // subtree
+ QCOMPARE(c->combinedOpacity(), 0.9 * 0.1 * 0.7);
+ QCOMPARE(geometry->inheritedOpacity(), 0.9 * 0.1 * 0.7);
+}
+
+void NodesTest::isBlockedCheck()
+{
+ QSGRootNode root;
+ QSGOpacityNode *opacity = new QSGOpacityNode();
+ QSGNode *node = new QSGNode();
+
+ root.appendChildNode(opacity);
+ opacity->appendChildNode(node);
+
+ QSGNodeUpdater updater;
+
+ opacity->setOpacity(0);
+ QVERIFY(updater.isNodeBlocked(node, &root));
+
+ opacity->setOpacity(1);
+ QVERIFY(!updater.isNodeBlocked(node, &root));
+}
+
+QTEST_MAIN(NodesTest);
+
+#include "tst_nodestest.moc"
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