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autotests: add very basic ColorDescription mapping test

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This commit is contained in:
Xaver Hugl 2023-12-22 20:25:44 +01:00
parent 33beb28b5f
commit 6832aee3a2
2 changed files with 87 additions and 0 deletions
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11
autotests/CMakeLists.txt
View file

@ -242,3 +242,14 @@ target_link_libraries(testOutputTransform
)
add_test(NAME kwin-testOutputTransform COMMAND testOutputTransform)
ecm_mark_as_test(testOutputTransform)
########################################################
# Test Colorspace
########################################################
add_executable(testColorspaces test_colorspaces.cpp)
target_link_libraries(testColorspaces
Qt::Test
kwin
)
add_test(NAME kwin-testColorspaces COMMAND testColorspaces)
ecm_mark_as_test(testColorspaces)

76
autotests/test_colorspaces.cpp Normal file
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@ -0,0 +1,76 @@
/*
SPDX-FileCopyrightText: 2023 Xaver Hugl <xaver.hugl@gmail.com>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include <QTest>
#include "core/colorspace.h"
using namespace KWin;
class TestColorspaces : public QObject
{
Q_OBJECT
public:
TestColorspaces() = default;
private Q_SLOTS:
void roundtripConversion_data();
void roundtripConversion();
};
static bool compareVectors(const QVector3D &one, const QVector3D &two, float maxDifference)
{
const bool ret = std::abs(one.x() - two.x()) <= maxDifference
&& std::abs(one.y() - two.y()) <= maxDifference
&& std::abs(one.z() - two.z()) <= maxDifference;
if (!ret) {
qWarning() << one << "!=" << two << "within" << maxDifference;
}
return ret;
}
void TestColorspaces::roundtripConversion_data()
{
QTest::addColumn<NamedColorimetry>("srcColorimetry");
QTest::addColumn<NamedTransferFunction>("srcTransferFunction");
QTest::addColumn<NamedColorimetry>("dstColorimetry");
QTest::addColumn<NamedTransferFunction>("dstTransferFunction");
QTest::addColumn<double>("requiredAccuracy");
const double resolution10bit = std::pow(1.0 / 2.0, 10);
QTest::addRow("BT709 (sRGB) <-> BT2020 (linear)") << NamedColorimetry::BT709 << NamedTransferFunction::sRGB << NamedColorimetry::BT2020 << NamedTransferFunction::linear << resolution10bit;
QTest::addRow("BT709 (gamma 2.2) <-> BT2020 (linear)") << NamedColorimetry::BT709 << NamedTransferFunction::gamma22 << NamedColorimetry::BT2020 << NamedTransferFunction::linear << resolution10bit;
QTest::addRow("BT709 (scRGB) <-> BT2020 (linear)") << NamedColorimetry::BT709 << NamedTransferFunction::scRGB << NamedColorimetry::BT2020 << NamedTransferFunction::linear << resolution10bit;
QTest::addRow("BT709 (linear) <-> BT2020 (linear)") << NamedColorimetry::BT709 << NamedTransferFunction::linear << NamedColorimetry::BT2020 << NamedTransferFunction::linear << resolution10bit;
QTest::addRow("BT709 (PQ) <-> BT2020 (linear)") << NamedColorimetry::BT709 << NamedTransferFunction::PerceptualQuantizer << NamedColorimetry::BT2020 << NamedTransferFunction::linear << 3 * resolution10bit;
}
void TestColorspaces::roundtripConversion()
{
QFETCH(NamedColorimetry, srcColorimetry);
QFETCH(NamedTransferFunction, srcTransferFunction);
QFETCH(NamedColorimetry, dstColorimetry);
QFETCH(NamedTransferFunction, dstTransferFunction);
QFETCH(double, requiredAccuracy);
const auto src = ColorDescription(srcColorimetry, srcTransferFunction, 100, 0, 100, 100, 0);
const auto dst = ColorDescription(dstColorimetry, dstTransferFunction, 100, 0, 100, 100, 0);
const QVector3D red(1, 0, 0);
const QVector3D green(0, 1, 0);
const QVector3D blue(0, 0, 1);
const QVector3D white(1, 1, 1);
QVERIFY(compareVectors(dst.mapTo(src.mapTo(red, dst), src), red, requiredAccuracy));
QVERIFY(compareVectors(dst.mapTo(src.mapTo(green, dst), src), green, requiredAccuracy));
QVERIFY(compareVectors(dst.mapTo(src.mapTo(blue, dst), src), blue, requiredAccuracy));
QVERIFY(compareVectors(dst.mapTo(src.mapTo(white, dst), src), white, requiredAccuracy));
}
QTEST_MAIN(TestColorspaces)
#include "test_colorspaces.moc"