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119 lines
4.6 KiB
119 lines
4.6 KiB
/* |
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This file is part of Magnum. |
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 |
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Vladimír Vondruš <mosra@centrum.cz> |
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Permission is hereby granted, free of charge, to any person obtaining a |
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copy of this software and associated documentation files (the "Software"), |
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to deal in the Software without restriction, including without limitation |
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the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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and/or sell copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following conditions: |
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The above copyright notice and this permission notice shall be included |
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in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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DEALINGS IN THE SOFTWARE. |
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*/ |
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#include <Corrade/TestSuite/Tester.h> |
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#include "Magnum/Math/Swizzle.h" |
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namespace Magnum { namespace Math { namespace Test { namespace { |
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struct SwizzleTest: Corrade::TestSuite::Tester { |
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explicit SwizzleTest(); |
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void gather(); |
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void gatherConstants(); |
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void gatherDifferentSize(); |
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void scatter(); |
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void scatterOneComponent(); |
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void scatterRepeatedComponents(); |
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void scatterOverwriteAllComponents(); |
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}; |
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typedef Vector<2, Int> Vector2i; |
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typedef Vector<3, Int> Vector3i; |
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typedef Vector<4, Int> Vector4i; |
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SwizzleTest::SwizzleTest() { |
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addTests({&SwizzleTest::gather, |
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&SwizzleTest::gatherConstants, |
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&SwizzleTest::gatherDifferentSize, |
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&SwizzleTest::scatter, |
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&SwizzleTest::scatterOneComponent, |
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&SwizzleTest::scatterRepeatedComponents, |
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&SwizzleTest::scatterOverwriteAllComponents}); |
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} |
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void SwizzleTest::gather() { |
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constexpr auto a = Math::gather<'z', 'x', 'w', 'y'>(Vector4i{2, 4, 5, 7}); |
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constexpr auto b = Math::gather<'b', 'r', 'a', 'g'>(Vector4i{2, 4, 5, 7}); |
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CORRADE_COMPARE(a, (Vector4i{5, 2, 7, 4})); |
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CORRADE_COMPARE(b, (Vector4i{5, 2, 7, 4})); |
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} |
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void SwizzleTest::gatherConstants() { |
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constexpr auto a = Math::gather<'1', 'w', '0', 'y'>(Vector4i{2, 4, 5, 7}); |
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constexpr auto b = Math::gather<'1', 3, '0', 2>(Vector4i{2, 4, 5, 7}); |
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CORRADE_COMPARE(a, (Vector4i{1, 7, 0, 4})); |
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CORRADE_COMPARE(b, (Vector4i{1, 7, 0, 4})); |
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} |
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void SwizzleTest::gatherDifferentSize() { |
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constexpr auto a = Math::gather<'y', 'x', 'x'>(Vector<2, Int>{1, 2}); |
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CORRADE_COMPARE(a, (Vector3i{2, 1, 1})); |
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constexpr auto b = Math::gather<'z'>(Vector4i{1, 2, 3, 4}); |
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CORRADE_COMPARE(b, (Vector<1, Int>{3})); |
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constexpr auto c = Math::gather<'z', 'x', 'w', 'y', 'z', 'y', 'x'>(Vector4i{1, 2, 3, 4}); |
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CORRADE_COMPARE(c, (Vector<7, Int>{3, 1, 4, 2, 3, 2, 1})); |
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} |
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void SwizzleTest::scatter() { |
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constexpr auto a = Math::scatter<'w', 'y'>(Vector4i{2, 4, 5, 7}, Vector2i{1, 3}); |
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constexpr auto b = Math::scatter<'a', 'g'>(Vector4i{2, 4, 5, 7}, Vector2i{1, 3}); |
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CORRADE_COMPARE(a, (Vector4i{2, 3, 5, 1})); |
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CORRADE_COMPARE(b, (Vector4i{2, 3, 5, 1})); |
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/* It's an inverse, so doing the same gather should result back in the |
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original values */ |
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CORRADE_COMPARE((Math::gather<'w', 'y'>(a)), (Vector2i{1, 3})); |
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} |
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void SwizzleTest::scatterOneComponent() { |
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constexpr auto a = Math::scatter<'w'>(Vector<7, Int>{2, 4, 5, 7, 0, 3, 2}, 1); |
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constexpr auto b = Math::scatter<'a'>(Vector<7, Int>{2, 4, 5, 7, 0, 3, 2}, 1); |
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CORRADE_COMPARE(a, (Vector<7, Int>{2, 4, 5, 1, 0, 3, 2})); |
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CORRADE_COMPARE(b, (Vector<7, Int>{2, 4, 5, 1, 0, 3, 2})); |
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} |
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void SwizzleTest::scatterRepeatedComponents() { |
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constexpr auto a = Math::scatter<'x', 'y', 'z', 'y', 'x'>(Vector3i{6, 12, 19}, Vector<5, Int>{1, 2, 3, 4, 5}); |
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constexpr auto b = Math::scatter<'r', 'g', 'b', 'g', 'r'>(Vector3i{6, 12, 19}, Vector<5, Int>{1, 2, 3, 4, 5}); |
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CORRADE_COMPARE(a, (Vector3i{5, 4, 3})); |
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CORRADE_COMPARE(b, (Vector3i{5, 4, 3})); |
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} |
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void SwizzleTest::scatterOverwriteAllComponents() { |
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constexpr auto a = Math::scatter<'w', 'y', 'z', 'x'>(Vector4i{2, 4, 5, 7}, Vector4i{1, 3, 6, 9}); |
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constexpr auto b = Math::gather<'w', 'y', 'z', 'x'>(Vector4i{1, 3, 6, 9}); |
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CORRADE_COMPARE(a, (Vector4i{9, 3, 6, 1})); |
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CORRADE_COMPARE(b, (Vector4i{9, 3, 6, 1})); |
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} |
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}}}} |
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CORRADE_TEST_MAIN(Magnum::Math::Test::SwizzleTest)
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