Add function assignChannelComponentIndices

This iterates through the channel description and assigns channel
component indices in ascending order.

The next step will be to use this in conjunction with the channel
description with the layout of channels in each clip to generate
the format indices that will allow us to quickly map from the clip's
raw ClipResults to ClipResults formatted in the layotu used by the
blend tree/animator.

Change-Id: I04dd5a21ca8355529118cfb2b05f4904e43ef0e2
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 66 insertions, 0 deletions

diff --git a/tests/auto/animation/animationutils/tst_animationutils.cpp b/tests/auto/animation/animationutils/tst_animationutils.cpp
index a96f7d2d2..0d758d3d3 100644
--- a/tests/auto/animation/animationutils/tst_animationutils.cpp
+++ b/tests/auto/animation/animationutils/tst_animationutils.cpp
@@ -2079,6 +2079,72 @@ private Q_SLOTS:
         // Cleanup
         delete handler;
     }
+
+    void checkAssignChannelComponentIndices_data()
+    {
+        QTest::addColumn<QVector<ChannelNameAndType>>("allChannels");
+        QTest::addColumn<QVector<ComponentIndices>>("expectedResults");
+
+        {
+            QVector<ChannelNameAndType> allChannels;
+            allChannels.push_back({ QLatin1String("Location"), static_cast<int>(QVariant::Vector3D) });
+
+            QVector<ComponentIndices> expectedResults;
+            expectedResults.push_back({ 0, 1, 2 });
+
+            QTest::newRow("vec3 location") << allChannels << expectedResults;
+        }
+
+        {
+            QVector<ChannelNameAndType> allChannels;
+            allChannels.push_back({ QLatin1String("Location"), static_cast<int>(QVariant::Vector3D) });
+            allChannels.push_back({ QLatin1String("Rotation"), static_cast<int>(QVariant::Quaternion) });
+
+            QVector<ComponentIndices> expectedResults;
+            expectedResults.push_back({ 0, 1, 2 });
+            expectedResults.push_back({ 3, 4, 5, 6 });
+
+            QTest::newRow("vec3 location, quaterion rotation") << allChannels << expectedResults;
+        }
+
+        {
+            QVector<ChannelNameAndType> allChannels;
+            allChannels.push_back({ QLatin1String("Location"), static_cast<int>(QVariant::Vector3D) });
+            allChannels.push_back({ QLatin1String("Rotation"), static_cast<int>(QVariant::Quaternion) });
+            allChannels.push_back({ QLatin1String("BaseColor"), static_cast<int>(QVariant::Vector3D) });
+            allChannels.push_back({ QLatin1String("Metalness"), static_cast<int>(QVariant::Double) });
+            allChannels.push_back({ QLatin1String("Roughness"), static_cast<int>(QVariant::Double) });
+
+            QVector<ComponentIndices> expectedResults;
+            expectedResults.push_back({ 0, 1, 2 });
+            expectedResults.push_back({ 3, 4, 5, 6 });
+            expectedResults.push_back({ 7, 8, 9 });
+            expectedResults.push_back({ 10 });
+            expectedResults.push_back({ 11 });
+
+            QTest::newRow("vec3 location, quaterion rotation, pbr metal-rough") << allChannels << expectedResults;
+        }
+    }
+
+    void checkAssignChannelComponentIndices()
+    {
+        // GIVEN
+        QFETCH(QVector<ChannelNameAndType>, allChannels);
+        QFETCH(QVector<ComponentIndices>, expectedResults);
+
+        // WHEN
+        const QVector<ComponentIndices> actualResults = assignChannelComponentIndices(allChannels);
+
+        // THEN
+        QCOMPARE(actualResults.size(), expectedResults.size());
+        for (int i = 0; i < actualResults.size(); ++i) {
+            const ComponentIndices &actualResult = actualResults[i];
+            const ComponentIndices &expectedResult = expectedResults[i];
+
+            for (int j = 0; j < actualResult.size(); ++j)
+                QCOMPARE(actualResult[j], expectedResult[j]);
+        }
+    }
 };
 
 QTEST_MAIN(tst_AnimationUtils)