qt 6.5.1 original

tests/benchmarks/gui/math3d/qmatrix4x4/CMakeLists.txt

@@ -0,0 +1,14 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_bench_qmatrix4x4 Binary:
+#####################################################################
+
+qt_internal_add_benchmark(tst_bench_qmatrix4x4
+    SOURCES
+        tst_qmatrix4x4.cpp
+    LIBRARIES
+        Qt::Gui
+        Qt::Test
+)

tests/benchmarks/gui/math3d/qmatrix4x4/tst_qmatrix4x4.cpp

@@ -0,0 +1,636 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QTest>
+#include <QtGui/qmatrix4x4.h>
+
+class tst_QMatrix4x4 : public QObject
+{
+    Q_OBJECT
+public:
+    tst_QMatrix4x4() {}
+    ~tst_QMatrix4x4() {}
+
+private slots:
+    void multiply_data();
+    void multiply();
+
+    void multiplyInPlace_data();
+    void multiplyInPlace();
+
+    void multiplyDirect_data();
+    void multiplyDirect();
+
+    void mapVector3D_data();
+    void mapVector3D();
+
+    void mapVector2D_data();
+    void mapVector2D();
+
+    void mapVectorDirect_data();
+    void mapVectorDirect();
+
+    void compareTranslate_data();
+    void compareTranslate();
+
+    void compareTranslateAfterScale_data();
+    void compareTranslateAfterScale();
+
+    void compareTranslateAfterRotate_data();
+    void compareTranslateAfterRotate();
+
+    void compareScale_data();
+    void compareScale();
+
+    void compareScaleAfterTranslate_data();
+    void compareScaleAfterTranslate();
+
+    void compareScaleAfterRotate_data();
+    void compareScaleAfterRotate();
+
+    void compareRotate_data();
+    void compareRotate();
+
+    void compareRotateAfterTranslate_data();
+    void compareRotateAfterTranslate();
+
+    void compareRotateAfterScale_data();
+    void compareRotateAfterScale();
+};
+
+static float const generalValues[16] =
+    {1.0f, 2.0f, 3.0f, 4.0f,
+     5.0f, 6.0f, 7.0f, 8.0f,
+     9.0f, 10.0f, 11.0f, 12.0f,
+     13.0f, 14.0f, 15.0f, 16.0f};
+
+void tst_QMatrix4x4::multiply_data()
+{
+    QTest::addColumn<QMatrix4x4>("m1");
+    QTest::addColumn<QMatrix4x4>("m2");
+
+    QTest::newRow("identity * identity")
+        << QMatrix4x4() << QMatrix4x4();
+    QTest::newRow("identity * general")
+        << QMatrix4x4() << QMatrix4x4(generalValues);
+    QTest::newRow("general * identity")
+        << QMatrix4x4(generalValues) << QMatrix4x4();
+    QTest::newRow("general * general")
+        << QMatrix4x4(generalValues) << QMatrix4x4(generalValues);
+}
+
+QMatrix4x4 mresult;
+
+void tst_QMatrix4x4::multiply()
+{
+    QFETCH(QMatrix4x4, m1);
+    QFETCH(QMatrix4x4, m2);
+
+    QMatrix4x4 m3;
+
+    QBENCHMARK {
+        m3 = m1 * m2;
+    }
+
+    // Force the result to be stored so the compiler doesn't
+    // optimize away the contents of the benchmark loop.
+    mresult = m3;
+}
+
+void tst_QMatrix4x4::multiplyInPlace_data()
+{
+    multiply_data();
+}
+
+void tst_QMatrix4x4::multiplyInPlace()
+{
+    QFETCH(QMatrix4x4, m1);
+    QFETCH(QMatrix4x4, m2);
+
+    QMatrix4x4 m3;
+
+    QBENCHMARK {
+        m3 = m1;
+        m3 *= m2;
+    }
+
+    // Force the result to be stored so the compiler doesn't
+    // optimize away the contents of the benchmark loop.
+    mresult = m3;
+}
+
+// Use a direct naive multiplication algorithm.  This is used
+// to compare against the optimized routines to see if they are
+// actually faster than the naive implementation.
+void tst_QMatrix4x4::multiplyDirect_data()
+{
+    multiply_data();
+}
+void tst_QMatrix4x4::multiplyDirect()
+{
+    QFETCH(QMatrix4x4, m1);
+    QFETCH(QMatrix4x4, m2);
+
+    QMatrix4x4 m3;
+
+    const float *m1data = m1.constData();
+    const float *m2data = m2.constData();
+    float *m3data = m3.data();
+
+    QBENCHMARK {
+        for (int row = 0; row < 4; ++row) {
+            for (int col = 0; col < 4; ++col) {
+                m3data[col * 4 + row] = 0.0f;
+                for (int j = 0; j < 4; ++j) {
+                    m3data[col * 4 + row] +=
+                        m1data[j * 4 + row] * m2data[col * 4 + j];
+                }
+            }
+        }
+    }
+}
+
+QVector3D vresult;
+
+void tst_QMatrix4x4::mapVector3D_data()
+{
+    QTest::addColumn<QMatrix4x4>("m1");
+
+    QTest::newRow("identity") << QMatrix4x4();
+    QTest::newRow("general") << QMatrix4x4(generalValues);
+
+    QMatrix4x4 t1;
+    t1.translate(-100.5f, 64.0f, 75.25f);
+    QTest::newRow("translate3D") << t1;
+
+    QMatrix4x4 t2;
+    t2.translate(-100.5f, 64.0f);
+    QTest::newRow("translate2D") << t2;
+
+    QMatrix4x4 s1;
+    s1.scale(-100.5f, 64.0f, 75.25f);
+    QTest::newRow("scale3D") << s1;
+
+    QMatrix4x4 s2;
+    s2.scale(-100.5f, 64.0f);
+    QTest::newRow("scale2D") << s2;
+}
+void tst_QMatrix4x4::mapVector3D()
+{
+    QFETCH(QMatrix4x4, m1);
+
+    QVector3D v(10.5f, -2.0f, 3.0f);
+    QVector3D result;
+
+    m1.optimize();
+
+    QBENCHMARK {
+        result = m1.map(v);
+        Q_UNUSED(result)
+    }
+
+    // Force the result to be stored so the compiler doesn't
+    // optimize away the contents of the benchmark loop.
+    vresult = result;
+}
+
+QPointF vresult2;
+
+void tst_QMatrix4x4::mapVector2D_data()
+{
+    mapVector3D_data();
+}
+void tst_QMatrix4x4::mapVector2D()
+{
+    QFETCH(QMatrix4x4, m1);
+
+    QPointF v(10.5f, -2.0f);
+    QPointF result;
+
+    m1.optimize();
+
+    QBENCHMARK {
+        result = m1.map(v);
+        Q_UNUSED(result)
+    }
+
+    // Force the result to be stored so the compiler doesn't
+    // optimize away the contents of the benchmark loop.
+    vresult2 = result;
+}
+
+// Use a direct naive multiplication algorithm.  This is used
+// to compare against the optimized routines to see if they are
+// actually faster than the naive implementation.
+void tst_QMatrix4x4::mapVectorDirect_data()
+{
+    mapVector3D_data();
+}
+void tst_QMatrix4x4::mapVectorDirect()
+{
+    QFETCH(QMatrix4x4, m1);
+
+    const float *m1data = m1.constData();
+    float v[4] = {10.5f, -2.0f, 3.0f, 1.0f};
+    float result[4];
+
+    QBENCHMARK {
+        for (int row = 0; row < 4; ++row) {
+            result[row] = 0.0f;
+            for (int col = 0; col < 4; ++col) {
+                result[row] += m1data[col * 4 + row] * v[col];
+            }
+        }
+        result[0] /= result[3];
+        result[1] /= result[3];
+        result[2] /= result[3];
+    }
+}
+
+// Compare the performance of QTransform::translate() to
+// QMatrix4x4::translate().
+void tst_QMatrix4x4::compareTranslate_data()
+{
+    QTest::addColumn<bool>("useQTransform");
+    QTest::addColumn<QVector3D>("translation");
+
+    QTest::newRow("QTransform::translate(0, 0, 0)")
+        << true << QVector3D(0, 0, 0);
+    QTest::newRow("QMatrix4x4::translate(0, 0, 0)")
+        << false << QVector3D(0, 0, 0);
+
+    QTest::newRow("QTransform::translate(1, 2, 0)")
+        << true << QVector3D(1, 2, 0);
+    QTest::newRow("QMatrix4x4::translate(1, 2, 0)")
+        << false << QVector3D(1, 2, 0);
+
+    QTest::newRow("QTransform::translate(1, 2, 4)")
+        << true << QVector3D(1, 2, 4);
+    QTest::newRow("QMatrix4x4::translate(1, 2, 4)")
+        << false << QVector3D(1, 2, 4);
+}
+void tst_QMatrix4x4::compareTranslate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, translation);
+
+    float x = translation.x();
+    float y = translation.y();
+    float z = translation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        QBENCHMARK {
+            t.translate(x, y);
+        }
+    } else if (z == 0.0f) {
+        QMatrix4x4 m;
+        QBENCHMARK {
+            m.translate(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        QBENCHMARK {
+            m.translate(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::translate() to
+// QMatrix4x4::translate() after priming the matrix with a scale().
+void tst_QMatrix4x4::compareTranslateAfterScale_data()
+{
+    compareTranslate_data();
+}
+void tst_QMatrix4x4::compareTranslateAfterScale()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, translation);
+
+    float x = translation.x();
+    float y = translation.y();
+    float z = translation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.scale(3, 4);
+        QBENCHMARK {
+            t.translate(x, y);
+        }
+    } else if (z == 0.0f) {
+        QMatrix4x4 m;
+        m.scale(3, 4);
+        QBENCHMARK {
+            m.translate(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        m.scale(3, 4, 5);
+        QBENCHMARK {
+            m.translate(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::translate() to
+// QMatrix4x4::translate() after priming the matrix with a rotate().
+void tst_QMatrix4x4::compareTranslateAfterRotate_data()
+{
+    compareTranslate_data();
+}
+void tst_QMatrix4x4::compareTranslateAfterRotate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, translation);
+
+    float x = translation.x();
+    float y = translation.y();
+    float z = translation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.rotate(45.0f);
+        QBENCHMARK {
+            t.translate(x, y);
+        }
+    } else if (z == 0.0f) {
+        QMatrix4x4 m;
+        m.rotate(45.0f, 0, 0, 1);
+        QBENCHMARK {
+            m.translate(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        m.rotate(45.0f, 0, 0, 1);
+        QBENCHMARK {
+            m.translate(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::scale() to
+// QMatrix4x4::scale().
+void tst_QMatrix4x4::compareScale_data()
+{
+    QTest::addColumn<bool>("useQTransform");
+    QTest::addColumn<QVector3D>("scale");
+
+    QTest::newRow("QTransform::scale(1, 1, 1)")
+        << true << QVector3D(1, 1, 1);
+    QTest::newRow("QMatrix4x4::scale(1, 1, 1)")
+        << false << QVector3D(1, 1, 1);
+
+    QTest::newRow("QTransform::scale(3, 6, 1)")
+        << true << QVector3D(3, 6, 1);
+    QTest::newRow("QMatrix4x4::scale(3, 6, 1)")
+        << false << QVector3D(3, 6, 1);
+
+    QTest::newRow("QTransform::scale(3, 6, 4)")
+        << true << QVector3D(3, 6, 4);
+    QTest::newRow("QMatrix4x4::scale(3, 6, 4)")
+        << false << QVector3D(3, 6, 4);
+}
+void tst_QMatrix4x4::compareScale()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, scale);
+
+    float x = scale.x();
+    float y = scale.y();
+    float z = scale.z();
+
+    if (useQTransform) {
+        QTransform t;
+        QBENCHMARK {
+            t.scale(x, y);
+        }
+    } else if (z == 1.0f) {
+        QMatrix4x4 m;
+        QBENCHMARK {
+            m.scale(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        QBENCHMARK {
+            m.scale(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::scale() to
+// QMatrix4x4::scale() after priming the matrix with a translate().
+void tst_QMatrix4x4::compareScaleAfterTranslate_data()
+{
+    compareScale_data();
+}
+void tst_QMatrix4x4::compareScaleAfterTranslate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, scale);
+
+    float x = scale.x();
+    float y = scale.y();
+    float z = scale.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.translate(20, 34);
+        QBENCHMARK {
+            t.scale(x, y);
+        }
+    } else if (z == 1.0f) {
+        QMatrix4x4 m;
+        m.translate(20, 34);
+        QBENCHMARK {
+            m.scale(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        m.translate(20, 34, 42);
+        QBENCHMARK {
+            m.scale(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::scale() to
+// QMatrix4x4::scale() after priming the matrix with a rotate().
+void tst_QMatrix4x4::compareScaleAfterRotate_data()
+{
+    compareScale_data();
+}
+void tst_QMatrix4x4::compareScaleAfterRotate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(QVector3D, scale);
+
+    float x = scale.x();
+    float y = scale.y();
+    float z = scale.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.rotate(45.0f);
+        QBENCHMARK {
+            t.scale(x, y);
+        }
+    } else if (z == 1.0f) {
+        QMatrix4x4 m;
+        m.rotate(45.0f, 0, 0, 1);
+        QBENCHMARK {
+            m.scale(x, y);
+        }
+    } else {
+        QMatrix4x4 m;
+        m.rotate(45.0f, 0, 0, 1);
+        QBENCHMARK {
+            m.scale(x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::rotate() to
+// QMatrix4x4::rotate().
+void tst_QMatrix4x4::compareRotate_data()
+{
+    QTest::addColumn<bool>("useQTransform");
+    QTest::addColumn<float>("angle");
+    QTest::addColumn<QVector3D>("rotation");
+    QTest::addColumn<int>("axis");
+
+    QTest::newRow("QTransform::rotate(0, ZAxis)")
+        << true << 0.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+    QTest::newRow("QMatrix4x4::rotate(0, ZAxis)")
+        << false << 0.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+
+    QTest::newRow("QTransform::rotate(45, ZAxis)")
+        << true << 45.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+    QTest::newRow("QMatrix4x4::rotate(45, ZAxis)")
+        << false << 45.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+
+    QTest::newRow("QTransform::rotate(90, ZAxis)")
+        << true << 90.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+    QTest::newRow("QMatrix4x4::rotate(90, ZAxis)")
+        << false << 90.0f << QVector3D(0, 0, 1) << int(Qt::ZAxis);
+
+    QTest::newRow("QTransform::rotate(0, YAxis)")
+        << true << 0.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+    QTest::newRow("QMatrix4x4::rotate(0, YAxis)")
+        << false << 0.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+
+    QTest::newRow("QTransform::rotate(45, YAxis)")
+        << true << 45.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+    QTest::newRow("QMatrix4x4::rotate(45, YAxis)")
+        << false << 45.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+
+    QTest::newRow("QTransform::rotate(90, YAxis)")
+        << true << 90.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+    QTest::newRow("QMatrix4x4::rotate(90, YAxis)")
+        << false << 90.0f << QVector3D(0, 1, 0) << int(Qt::YAxis);
+
+    QTest::newRow("QTransform::rotate(0, XAxis)")
+        << true << 0.0f << QVector3D(0, 1, 0) << int(Qt::XAxis);
+    QTest::newRow("QMatrix4x4::rotate(0, XAxis)")
+        << false << 0.0f << QVector3D(0, 1, 0) << int(Qt::XAxis);
+
+    QTest::newRow("QTransform::rotate(45, XAxis)")
+        << true << 45.0f << QVector3D(1, 0, 0) << int(Qt::XAxis);
+    QTest::newRow("QMatrix4x4::rotate(45, XAxis)")
+        << false << 45.0f << QVector3D(1, 0, 0) << int(Qt::XAxis);
+
+    QTest::newRow("QTransform::rotate(90, XAxis)")
+        << true << 90.0f << QVector3D(1, 0, 0) << int(Qt::XAxis);
+    QTest::newRow("QMatrix4x4::rotate(90, XAxis)")
+        << false << 90.0f << QVector3D(1, 0, 0) << int(Qt::XAxis);
+}
+void tst_QMatrix4x4::compareRotate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(float, angle);
+    QFETCH(QVector3D, rotation);
+    QFETCH(int, axis);
+
+    float x = rotation.x();
+    float y = rotation.y();
+    float z = rotation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        QBENCHMARK {
+            t.rotate(angle, Qt::Axis(axis));
+        }
+    } else {
+        QMatrix4x4 m;
+        QBENCHMARK {
+            m.rotate(angle, x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::rotate() to
+// QMatrix4x4::rotate() after priming the matrix with a translate().
+void tst_QMatrix4x4::compareRotateAfterTranslate_data()
+{
+    compareRotate_data();
+}
+void tst_QMatrix4x4::compareRotateAfterTranslate()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(float, angle);
+    QFETCH(QVector3D, rotation);
+    QFETCH(int, axis);
+
+    float x = rotation.x();
+    float y = rotation.y();
+    float z = rotation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.translate(3, 4);
+        QBENCHMARK {
+            t.rotate(angle, Qt::Axis(axis));
+        }
+    } else {
+        QMatrix4x4 m;
+        m.translate(3, 4, 5);
+        QBENCHMARK {
+            m.rotate(angle, x, y, z);
+        }
+    }
+}
+
+// Compare the performance of QTransform::rotate() to
+// QMatrix4x4::rotate() after priming the matrix with a scale().
+void tst_QMatrix4x4::compareRotateAfterScale_data()
+{
+    compareRotate_data();
+}
+void tst_QMatrix4x4::compareRotateAfterScale()
+{
+    QFETCH(bool, useQTransform);
+    QFETCH(float, angle);
+    QFETCH(QVector3D, rotation);
+    QFETCH(int, axis);
+
+    float x = rotation.x();
+    float y = rotation.y();
+    float z = rotation.z();
+
+    if (useQTransform) {
+        QTransform t;
+        t.scale(3, 4);
+        QBENCHMARK {
+            t.rotate(angle, Qt::Axis(axis));
+        }
+    } else {
+        QMatrix4x4 m;
+        m.scale(3, 4, 5);
+        QBENCHMARK {
+            m.rotate(angle, x, y, z);
+        }
+    }
+}
+
+QTEST_MAIN(tst_QMatrix4x4)
+
+#include "tst_qmatrix4x4.moc"