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Diffstat (limited to 'tests/auto/gui/util/qshadergraph/tst_qshadergraph.cpp')
| -rw-r--r-- | tests/auto/gui/util/qshadergraph/tst_qshadergraph.cpp | 779 |
1 files changed, 779 insertions, 0 deletions
diff --git a/tests/auto/gui/util/qshadergraph/tst_qshadergraph.cpp b/tests/auto/gui/util/qshadergraph/tst_qshadergraph.cpp new file mode 100644 index 0000000000..ce2d38c24f --- /dev/null +++ b/tests/auto/gui/util/qshadergraph/tst_qshadergraph.cpp @@ -0,0 +1,779 @@ +/**************************************************************************** +** +** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB). +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the test suite of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:GPL-EXCEPT$ +** 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 General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3 as published by the Free Software +** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT +** 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-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> + +#include <QtGui/private/qshadergraph_p.h> + +namespace +{ + QShaderNodePort createPort(QShaderNodePort::Direction portDirection, const QString &portName) + { + auto port = QShaderNodePort(); + port.direction = portDirection; + port.name = portName; + return port; + } + + QShaderNode createNode(const QVector<QShaderNodePort> &ports, const QStringList &layers = QStringList()) + { + auto node = QShaderNode(); + node.setUuid(QUuid::createUuid()); + node.setLayers(layers); + for (const auto &port : ports) + node.addPort(port); + return node; + } + + QShaderGraph::Edge createEdge(const QUuid &sourceUuid, const QString &sourceName, + const QUuid &targetUuid, const QString &targetName, + const QStringList &layers = QStringList()) + { + auto edge = QShaderGraph::Edge(); + edge.sourceNodeUuid = sourceUuid; + edge.sourcePortName = sourceName; + edge.targetNodeUuid = targetUuid; + edge.targetPortName = targetName; + edge.layers = layers; + return edge; + } + + QShaderGraph::Statement createStatement(const QShaderNode &node, + const QVector<int> &inputs = QVector<int>(), + const QVector<int> &outputs = QVector<int>()) + { + auto statement = QShaderGraph::Statement(); + statement.node = node; + statement.inputs = inputs; + statement.outputs = outputs; + return statement; + } + + void debugStatement(const QString &prefix, const QShaderGraph::Statement &statement) + { + qDebug() << prefix << statement.inputs << statement.uuid().toString() << statement.outputs; + } + + void dumpStatementsIfNeeded(const QVector<QShaderGraph::Statement> &statements, const QVector<QShaderGraph::Statement> &expected) + { + if (statements != expected) { + for (int i = 0; i < qMax(statements.size(), expected.size()); i++) { + qDebug() << "----" << i << "----"; + if (i < statements.size()) + debugStatement("A:", statements.at(i)); + if (i < expected.size()) + debugStatement("E:", expected.at(i)); + qDebug() << "-----------"; + } + } + } +} + +class tst_QShaderGraph : public QObject +{ + Q_OBJECT +private slots: + void shouldHaveEdgeDefaultState(); + void shouldTestEdgesEquality_data(); + void shouldTestEdgesEquality(); + void shouldManipulateStatementMembers(); + void shouldTestStatementsEquality_data(); + void shouldTestStatementsEquality(); + void shouldFindIndexFromPortNameInStatements_data(); + void shouldFindIndexFromPortNameInStatements(); + void shouldManageNodeList(); + void shouldManageEdgeList(); + void shouldSerializeGraphForCodeGeneration(); + void shouldHandleUnboundPortsDuringGraphSerialization(); + void shouldSurviveCyclesDuringGraphSerialization(); + void shouldDealWithEdgesJumpingOverLayers(); + void shouldGenerateDifferentStatementsDependingOnActiveLayers(); +}; + +void tst_QShaderGraph::shouldHaveEdgeDefaultState() +{ + // GIVEN + auto edge = QShaderGraph::Edge(); + + // THEN + QVERIFY(edge.sourceNodeUuid.isNull()); + QVERIFY(edge.sourcePortName.isEmpty()); + QVERIFY(edge.targetNodeUuid.isNull()); + QVERIFY(edge.targetPortName.isEmpty()); +} + +void tst_QShaderGraph::shouldTestEdgesEquality_data() +{ + QTest::addColumn<QShaderGraph::Edge>("left"); + QTest::addColumn<QShaderGraph::Edge>("right"); + QTest::addColumn<bool>("expected"); + + const auto sourceUuid1 = QUuid::createUuid(); + const auto sourceUuid2 = QUuid::createUuid(); + const auto targetUuid1 = QUuid::createUuid(); + const auto targetUuid2 = QUuid::createUuid(); + + QTest::newRow("Equals") << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << true; + QTest::newRow("SourceUuid") << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << createEdge(sourceUuid2, "foo", targetUuid1, "bar") + << false; + QTest::newRow("SourceName") << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << createEdge(sourceUuid1, "bleh", targetUuid1, "bar") + << false; + QTest::newRow("TargetUuid") << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << createEdge(sourceUuid1, "foo", targetUuid2, "bar") + << false; + QTest::newRow("TargetName") << createEdge(sourceUuid1, "foo", targetUuid1, "bar") + << createEdge(sourceUuid1, "foo", targetUuid1, "bleh") + << false; +} + +void tst_QShaderGraph::shouldTestEdgesEquality() +{ + // GIVEN + QFETCH(QShaderGraph::Edge, left); + QFETCH(QShaderGraph::Edge, right); + + // WHEN + const auto equal = (left == right); + const auto notEqual = (left != right); + + // THEN + QFETCH(bool, expected); + QCOMPARE(equal, expected); + QCOMPARE(notEqual, !expected); +} + +void tst_QShaderGraph::shouldManipulateStatementMembers() +{ + // GIVEN + auto statement = QShaderGraph::Statement(); + + // THEN (default state) + QVERIFY(statement.inputs.isEmpty()); + QVERIFY(statement.outputs.isEmpty()); + QVERIFY(statement.node.uuid().isNull()); + QVERIFY(statement.uuid().isNull()); + + // WHEN + const auto node = createNode({}); + statement.node = node; + + // THEN + QCOMPARE(statement.uuid(), node.uuid()); + + // WHEN + statement.node = QShaderNode(); + + // THEN + QVERIFY(statement.uuid().isNull()); +} + +void tst_QShaderGraph::shouldTestStatementsEquality_data() +{ + QTest::addColumn<QShaderGraph::Statement>("left"); + QTest::addColumn<QShaderGraph::Statement>("right"); + QTest::addColumn<bool>("expected"); + + const auto node1 = createNode({}); + const auto node2 = createNode({}); + + QTest::newRow("EqualNodes") << createStatement(node1, {1, 2}, {3, 4}) + << createStatement(node1, {1, 2}, {3, 4}) + << true; + QTest::newRow("EqualInvalids") << createStatement(QShaderNode(), {1, 2}, {3, 4}) + << createStatement(QShaderNode(), {1, 2}, {3, 4}) + << true; + QTest::newRow("Nodes") << createStatement(node1, {1, 2}, {3, 4}) + << createStatement(node2, {1, 2}, {3, 4}) + << false; + QTest::newRow("Inputs") << createStatement(node1, {1, 2}, {3, 4}) + << createStatement(node1, {1, 2, 0}, {3, 4}) + << false; + QTest::newRow("Outputs") << createStatement(node1, {1, 2}, {3, 4}) + << createStatement(node1, {1, 2}, {3, 0, 4}) + << false; +} + +void tst_QShaderGraph::shouldTestStatementsEquality() +{ + // GIVEN + QFETCH(QShaderGraph::Statement, left); + QFETCH(QShaderGraph::Statement, right); + + // WHEN + const auto equal = (left == right); + const auto notEqual = (left != right); + + // THEN + QFETCH(bool, expected); + QCOMPARE(equal, expected); + QCOMPARE(notEqual, !expected); +} + +void tst_QShaderGraph::shouldFindIndexFromPortNameInStatements_data() +{ + QTest::addColumn<QShaderGraph::Statement>("statement"); + QTest::addColumn<QString>("portName"); + QTest::addColumn<int>("expectedInputIndex"); + QTest::addColumn<int>("expectedOutputIndex"); + + const auto inputNodeStatement = createStatement(createNode({ + createPort(QShaderNodePort::Output, "input") + })); + const auto outputNodeStatement = createStatement(createNode({ + createPort(QShaderNodePort::Input, "output") + })); + const auto functionNodeStatement = createStatement(createNode({ + createPort(QShaderNodePort::Input, "input1"), + createPort(QShaderNodePort::Output, "output1"), + createPort(QShaderNodePort::Input, "input2"), + createPort(QShaderNodePort::Output, "output2"), + createPort(QShaderNodePort::Output, "output3"), + createPort(QShaderNodePort::Input, "input3") + })); + + QTest::newRow("Invalid") << QShaderGraph::Statement() << "foo" << -1 << -1; + QTest::newRow("InputNodeWrongName") << inputNodeStatement << "foo" << -1 << -1; + QTest::newRow("InputNodeExistingName") << inputNodeStatement << "input" << -1 << 0; + QTest::newRow("OutputNodeWrongName") << outputNodeStatement << "foo" << -1 << -1; + QTest::newRow("OutputNodeExistingName") << outputNodeStatement << "output" << 0 << -1; + QTest::newRow("FunctionNodeWrongName") << functionNodeStatement << "foo" << -1 << -1; + QTest::newRow("FunctionNodeInput1") << functionNodeStatement << "input1" << 0 << -1; + QTest::newRow("FunctionNodeOutput1") << functionNodeStatement << "output1" << -1 << 0; + QTest::newRow("FunctionNodeInput2") << functionNodeStatement << "input2" << 1 << -1; + QTest::newRow("FunctionNodeOutput2") << functionNodeStatement << "output2" << -1 << 1; + QTest::newRow("FunctionNodeInput3") << functionNodeStatement << "input3" << 2 << -1; + QTest::newRow("FunctionNodeOutput3") << functionNodeStatement << "output3" << -1 << 2; +} + +void tst_QShaderGraph::shouldFindIndexFromPortNameInStatements() +{ + // GIVEN + QFETCH(QShaderGraph::Statement, statement); + QFETCH(QString, portName); + QFETCH(int, expectedInputIndex); + QFETCH(int, expectedOutputIndex); + + // WHEN + const auto inputIndex = statement.portIndex(QShaderNodePort::Input, portName); + const auto outputIndex = statement.portIndex(QShaderNodePort::Output, portName); + + // THEN + QCOMPARE(inputIndex, expectedInputIndex); + QCOMPARE(outputIndex, expectedOutputIndex); +} + +void tst_QShaderGraph::shouldManageNodeList() +{ + // GIVEN + const auto node1 = createNode({createPort(QShaderNodePort::Output, "node1")}); + const auto node2 = createNode({createPort(QShaderNodePort::Output, "node2")}); + + auto graph = QShaderGraph(); + + // THEN (default state) + QVERIFY(graph.nodes().isEmpty()); + + // WHEN + graph.addNode(node1); + + // THEN + QCOMPARE(graph.nodes().size(), 1); + QCOMPARE(graph.nodes().at(0).uuid(), node1.uuid()); + QCOMPARE(graph.nodes().at(0).ports().at(0).name, node1.ports().at(0).name); + + // WHEN + graph.addNode(node2); + + // THEN + QCOMPARE(graph.nodes().size(), 2); + QCOMPARE(graph.nodes().at(0).uuid(), node1.uuid()); + QCOMPARE(graph.nodes().at(0).ports().at(0).name, node1.ports().at(0).name); + QCOMPARE(graph.nodes().at(1).uuid(), node2.uuid()); + QCOMPARE(graph.nodes().at(1).ports().at(0).name, node2.ports().at(0).name); + + + // WHEN + graph.removeNode(node2); + + // THEN + QCOMPARE(graph.nodes().size(), 1); + QCOMPARE(graph.nodes().at(0).uuid(), node1.uuid()); + QCOMPARE(graph.nodes().at(0).ports().at(0).name, node1.ports().at(0).name); + + // WHEN + graph.addNode(node2); + + // THEN + QCOMPARE(graph.nodes().size(), 2); + QCOMPARE(graph.nodes().at(0).uuid(), node1.uuid()); + QCOMPARE(graph.nodes().at(0).ports().at(0).name, node1.ports().at(0).name); + QCOMPARE(graph.nodes().at(1).uuid(), node2.uuid()); + QCOMPARE(graph.nodes().at(1).ports().at(0).name, node2.ports().at(0).name); + + // WHEN + const auto node1bis = [node1] { + auto res = node1; + auto port = res.ports().at(0); + port.name = QStringLiteral("node1bis"); + res.addPort(port); + return res; + }(); + graph.addNode(node1bis); + + // THEN + QCOMPARE(graph.nodes().size(), 2); + QCOMPARE(graph.nodes().at(0).uuid(), node2.uuid()); + QCOMPARE(graph.nodes().at(0).ports().at(0).name, node2.ports().at(0).name); + QCOMPARE(graph.nodes().at(1).uuid(), node1bis.uuid()); + QCOMPARE(graph.nodes().at(1).ports().at(0).name, node1bis.ports().at(0).name); +} + +void tst_QShaderGraph::shouldManageEdgeList() +{ + // GIVEN + const auto edge1 = createEdge(QUuid::createUuid(), "foo", QUuid::createUuid(), "bar"); + const auto edge2 = createEdge(QUuid::createUuid(), "baz", QUuid::createUuid(), "boo"); + + auto graph = QShaderGraph(); + + // THEN (default state) + QVERIFY(graph.edges().isEmpty()); + + // WHEN + graph.addEdge(edge1); + + // THEN + QCOMPARE(graph.edges().size(), 1); + QCOMPARE(graph.edges().at(0), edge1); + + // WHEN + graph.addEdge(edge2); + + // THEN + QCOMPARE(graph.edges().size(), 2); + QCOMPARE(graph.edges().at(0), edge1); + QCOMPARE(graph.edges().at(1), edge2); + + + // WHEN + graph.removeEdge(edge2); + + // THEN + QCOMPARE(graph.edges().size(), 1); + QCOMPARE(graph.edges().at(0), edge1); + + // WHEN + graph.addEdge(edge2); + + // THEN + QCOMPARE(graph.edges().size(), 2); + QCOMPARE(graph.edges().at(0), edge1); + QCOMPARE(graph.edges().at(1), edge2); + + // WHEN + graph.addEdge(edge1); + + // THEN + QCOMPARE(graph.edges().size(), 2); + QCOMPARE(graph.edges().at(0), edge1); + QCOMPARE(graph.edges().at(1), edge2); +} + +void tst_QShaderGraph::shouldSerializeGraphForCodeGeneration() +{ + // GIVEN + const auto input1 = createNode({ + createPort(QShaderNodePort::Output, "input1Value") + }); + const auto input2 = createNode({ + createPort(QShaderNodePort::Output, "input2Value") + }); + const auto output1 = createNode({ + createPort(QShaderNodePort::Input, "output1Value") + }); + const auto output2 = createNode({ + createPort(QShaderNodePort::Input, "output2Value") + }); + const auto function1 = createNode({ + createPort(QShaderNodePort::Input, "function1Input"), + createPort(QShaderNodePort::Output, "function1Output") + }); + const auto function2 = createNode({ + createPort(QShaderNodePort::Input, "function2Input1"), + createPort(QShaderNodePort::Input, "function2Input2"), + createPort(QShaderNodePort::Output, "function2Output") + }); + const auto function3 = createNode({ + createPort(QShaderNodePort::Input, "function3Input1"), + createPort(QShaderNodePort::Input, "function3Input2"), + createPort(QShaderNodePort::Output, "function3Output1"), + createPort(QShaderNodePort::Output, "function3Output2") + }); + + const auto graph = [=] { + auto res = QShaderGraph(); + res.addNode(input1); + res.addNode(input2); + res.addNode(output1); + res.addNode(output2); + res.addNode(function1); + res.addNode(function2); + res.addNode(function3); + res.addEdge(createEdge(input1.uuid(), "input1Value", function1.uuid(), "function1Input")); + res.addEdge(createEdge(input1.uuid(), "input1Value", function2.uuid(), "function2Input1")); + res.addEdge(createEdge(input2.uuid(), "input2Value", function2.uuid(), "function2Input2")); + res.addEdge(createEdge(function1.uuid(), "function1Output", function3.uuid(), "function3Input1")); + res.addEdge(createEdge(function2.uuid(), "function2Output", function3.uuid(), "function3Input2")); + res.addEdge(createEdge(function3.uuid(), "function3Output1", output1.uuid(), "output1Value")); + res.addEdge(createEdge(function3.uuid(), "function3Output2", output2.uuid(), "output2Value")); + return res; + }(); + + // WHEN + const auto statements = graph.createStatements(); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(input2, {}, {1}) + << createStatement(input1, {}, {0}) + << createStatement(function2, {0, 1}, {3}) + << createStatement(function1, {0}, {2}) + << createStatement(function3, {2, 3}, {4, 5}) + << createStatement(output2, {5}, {}) + << createStatement(output1, {4}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); +} + +void tst_QShaderGraph::shouldHandleUnboundPortsDuringGraphSerialization() +{ + // GIVEN + const auto input = createNode({ + createPort(QShaderNodePort::Output, "input") + }); + const auto unboundInput = createNode({ + createPort(QShaderNodePort::Output, "unbound") + }); + const auto output = createNode({ + createPort(QShaderNodePort::Input, "output") + }); + const auto unboundOutput = createNode({ + createPort(QShaderNodePort::Input, "unbound") + }); + const auto function = createNode({ + createPort(QShaderNodePort::Input, "functionInput1"), + createPort(QShaderNodePort::Input, "functionInput2"), + createPort(QShaderNodePort::Input, "functionInput3"), + createPort(QShaderNodePort::Output, "functionOutput1"), + createPort(QShaderNodePort::Output, "functionOutput2"), + createPort(QShaderNodePort::Output, "functionOutput3") + }); + + const auto graph = [=] { + auto res = QShaderGraph(); + res.addNode(input); + res.addNode(unboundInput); + res.addNode(output); + res.addNode(unboundOutput); + res.addNode(function); + res.addEdge(createEdge(input.uuid(), "input", function.uuid(), "functionInput2")); + res.addEdge(createEdge(function.uuid(), "functionOutput2", output.uuid(), "output")); + return res; + }(); + + // WHEN + const auto statements = graph.createStatements(); + + // THEN + // Note that no edge leads to the unbound input + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(input, {}, {0}) + << createStatement(function, {-1, 0, -1}, {2, 3, 4}) + << createStatement(unboundOutput, {-1}, {}) + << createStatement(output, {3}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); +} + +void tst_QShaderGraph::shouldSurviveCyclesDuringGraphSerialization() +{ + // GIVEN + const auto input = createNode({ + createPort(QShaderNodePort::Output, "input") + }); + const auto output = createNode({ + createPort(QShaderNodePort::Input, "output") + }); + const auto function1 = createNode({ + createPort(QShaderNodePort::Input, "function1Input1"), + createPort(QShaderNodePort::Input, "function1Input2"), + createPort(QShaderNodePort::Output, "function1Output") + }); + const auto function2 = createNode({ + createPort(QShaderNodePort::Input, "function2Input"), + createPort(QShaderNodePort::Output, "function2Output") + }); + const auto function3 = createNode({ + createPort(QShaderNodePort::Input, "function3Input"), + createPort(QShaderNodePort::Output, "function3Output") + }); + + const auto graph = [=] { + auto res = QShaderGraph(); + res.addNode(input); + res.addNode(output); + res.addNode(function1); + res.addNode(function2); + res.addNode(function3); + res.addEdge(createEdge(input.uuid(), "input", function1.uuid(), "function1Input1")); + res.addEdge(createEdge(function1.uuid(), "function1Output", function2.uuid(), "function2Input")); + res.addEdge(createEdge(function2.uuid(), "function2Output", function3.uuid(), "function3Input")); + res.addEdge(createEdge(function3.uuid(), "function3Output", function1.uuid(), "function1Input2")); + res.addEdge(createEdge(function2.uuid(), "function2Output", output.uuid(), "output")); + return res; + }(); + + // WHEN + const auto statements = graph.createStatements(); + + // THEN + // Obviously will lead to a compile failure later on since it cuts everything beyond the cycle + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(output, {2}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); +} + +void tst_QShaderGraph::shouldDealWithEdgesJumpingOverLayers() +{ + // GIVEN + const auto worldPosition = createNode({ + createPort(QShaderNodePort::Output, "worldPosition") + }); + const auto texture = createNode({ + createPort(QShaderNodePort::Output, "texture") + }); + const auto texCoord = createNode({ + createPort(QShaderNodePort::Output, "texCoord") + }); + const auto lightIntensity = createNode({ + createPort(QShaderNodePort::Output, "lightIntensity") + }); + const auto exposure = createNode({ + createPort(QShaderNodePort::Output, "exposure") + }); + const auto fragColor = createNode({ + createPort(QShaderNodePort::Input, "fragColor") + }); + const auto sampleTexture = createNode({ + createPort(QShaderNodePort::Input, "sampler"), + createPort(QShaderNodePort::Input, "coord"), + createPort(QShaderNodePort::Output, "color") + }); + const auto lightFunction = createNode({ + createPort(QShaderNodePort::Input, "baseColor"), + createPort(QShaderNodePort::Input, "position"), + createPort(QShaderNodePort::Input, "lightIntensity"), + createPort(QShaderNodePort::Output, "outputColor") + }); + const auto exposureFunction = createNode({ + createPort(QShaderNodePort::Input, "inputColor"), + createPort(QShaderNodePort::Input, "exposure"), + createPort(QShaderNodePort::Output, "outputColor") + }); + + const auto graph = [=] { + auto res = QShaderGraph(); + + res.addNode(worldPosition); + res.addNode(texture); + res.addNode(texCoord); + res.addNode(lightIntensity); + res.addNode(exposure); + res.addNode(fragColor); + res.addNode(sampleTexture); + res.addNode(lightFunction); + res.addNode(exposureFunction); + + res.addEdge(createEdge(texture.uuid(), "texture", sampleTexture.uuid(), "sampler")); + res.addEdge(createEdge(texCoord.uuid(), "texCoord", sampleTexture.uuid(), "coord")); + + res.addEdge(createEdge(worldPosition.uuid(), "worldPosition", lightFunction.uuid(), "position")); + res.addEdge(createEdge(sampleTexture.uuid(), "color", lightFunction.uuid(), "baseColor")); + res.addEdge(createEdge(lightIntensity.uuid(), "lightIntensity", lightFunction.uuid(), "lightIntensity")); + + res.addEdge(createEdge(lightFunction.uuid(), "outputColor", exposureFunction.uuid(), "inputColor")); + res.addEdge(createEdge(exposure.uuid(), "exposure", exposureFunction.uuid(), "exposure")); + + res.addEdge(createEdge(exposureFunction.uuid(), "outputColor", fragColor.uuid(), "fragColor")); + + return res; + }(); + + // WHEN + const auto statements = graph.createStatements(); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(texCoord, {}, {2}) + << createStatement(texture, {}, {1}) + << createStatement(lightIntensity, {}, {3}) + << createStatement(sampleTexture, {1, 2}, {5}) + << createStatement(worldPosition, {}, {0}) + << createStatement(exposure, {}, {4}) + << createStatement(lightFunction, {5, 0, 3}, {6}) + << createStatement(exposureFunction, {6, 4}, {7}) + << createStatement(fragColor, {7}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); +} + +void tst_QShaderGraph::shouldGenerateDifferentStatementsDependingOnActiveLayers() +{ + // GIVEN + const auto texCoord = createNode({ + createPort(QShaderNodePort::Output, "texCoord") + }, { + "diffuseTexture", + "normalTexture" + }); + const auto diffuseUniform = createNode({ + createPort(QShaderNodePort::Output, "color") + }, {"diffuseUniform"}); + const auto diffuseTexture = createNode({ + createPort(QShaderNodePort::Input, "coord"), + createPort(QShaderNodePort::Output, "color") + }, {"diffuseTexture"}); + const auto normalUniform = createNode({ + createPort(QShaderNodePort::Output, "normal") + }, {"normalUniform"}); + const auto normalTexture = createNode({ + createPort(QShaderNodePort::Input, "coord"), + createPort(QShaderNodePort::Output, "normal") + }, {"normalTexture"}); + const auto lightFunction = createNode({ + createPort(QShaderNodePort::Input, "color"), + createPort(QShaderNodePort::Input, "normal"), + createPort(QShaderNodePort::Output, "output") + }); + const auto fragColor = createNode({ + createPort(QShaderNodePort::Input, "fragColor") + }); + + const auto graph = [=] { + auto res = QShaderGraph(); + + res.addNode(texCoord); + res.addNode(diffuseUniform); + res.addNode(diffuseTexture); + res.addNode(normalUniform); + res.addNode(normalTexture); + res.addNode(lightFunction); + res.addNode(fragColor); + + res.addEdge(createEdge(diffuseUniform.uuid(), "color", lightFunction.uuid(), "color", {"diffuseUniform"})); + res.addEdge(createEdge(texCoord.uuid(), "texCoord", diffuseTexture.uuid(), "coord", {"diffuseTexture"})); + res.addEdge(createEdge(diffuseTexture.uuid(), "color", lightFunction.uuid(), "color", {"diffuseTexture"})); + + res.addEdge(createEdge(normalUniform.uuid(), "normal", lightFunction.uuid(), "normal", {"normalUniform"})); + res.addEdge(createEdge(texCoord.uuid(), "texCoord", normalTexture.uuid(), "coord", {"normalTexture"})); + res.addEdge(createEdge(normalTexture.uuid(), "normal", lightFunction.uuid(), "normal", {"normalTexture"})); + + res.addEdge(createEdge(lightFunction.uuid(), "output", fragColor.uuid(), "fragColor")); + + return res; + }(); + + { + // WHEN + const auto statements = graph.createStatements({"diffuseUniform", "normalUniform"}); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(normalUniform, {}, {1}) + << createStatement(diffuseUniform, {}, {0}) + << createStatement(lightFunction, {0, 1}, {2}) + << createStatement(fragColor, {2}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); + } + + { + // WHEN + const auto statements = graph.createStatements({"diffuseUniform", "normalTexture"}); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(texCoord, {}, {0}) + << createStatement(normalTexture, {0}, {2}) + << createStatement(diffuseUniform, {}, {1}) + << createStatement(lightFunction, {1, 2}, {3}) + << createStatement(fragColor, {3}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); + } + + { + // WHEN + const auto statements = graph.createStatements({"diffuseTexture", "normalUniform"}); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(texCoord, {}, {0}) + << createStatement(normalUniform, {}, {2}) + << createStatement(diffuseTexture, {0}, {1}) + << createStatement(lightFunction, {1, 2}, {3}) + << createStatement(fragColor, {3}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); + } + + { + // WHEN + const auto statements = graph.createStatements({"diffuseTexture", "normalTexture"}); + + // THEN + const auto expected = QVector<QShaderGraph::Statement>() + << createStatement(texCoord, {}, {0}) + << createStatement(normalTexture, {0}, {2}) + << createStatement(diffuseTexture, {0}, {1}) + << createStatement(lightFunction, {1, 2}, {3}) + << createStatement(fragColor, {3}, {}); + dumpStatementsIfNeeded(statements, expected); + QCOMPARE(statements, expected); + } +} + +QTEST_MAIN(tst_QShaderGraph) + +#include "tst_qshadergraph.moc" |