mirror of https://github.com/SixLabors/ImageSharp
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AND add unit tests AND fix Gray16 implementation (constructor takes ushort, not byte) AND fix Gray8 and Gray16 Pack (do not scale by sum)af/merge-core
Peter Amrehn
8 years ago
28 changed files with 748 additions and 5 deletions
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// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System.Numerics; |
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using SixLabors.ImageSharp.PixelFormats; |
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using Xunit; |
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namespace SixLabors.ImageSharp.Tests.PixelFormats |
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{ |
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public class Gray16Tests |
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{ |
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[Theory] |
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[InlineData(0)] |
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[InlineData(65535)] |
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[InlineData(32767)] |
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[InlineData(42)] |
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public void Gray16_PackedValue_EqualsInput(ushort input) |
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{ |
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Assert.Equal(input, new Gray16(input).PackedValue); |
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} |
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[Theory] |
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[InlineData(0)] |
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[InlineData(65535)] |
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[InlineData(32767)] |
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public void Gray16_ToVector4(ushort input) |
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{ |
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// arrange
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var gray = new Gray16(input); |
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// act
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var actual = gray.ToVector4(); |
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// assert
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Assert.Equal(input, actual.X); |
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Assert.Equal(input, actual.Y); |
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Assert.Equal(input, actual.Z); |
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Assert.Equal(1, actual.W); |
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} |
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[Theory] |
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[InlineData(0)] |
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[InlineData(65535)] |
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[InlineData(32767)] |
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public void Gray16_ToScaledVector4(ushort input) |
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{ |
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// arrange
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var gray = new Gray16(input); |
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// act
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var actual = gray.ToScaledVector4(); |
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// assert
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float scaledInput = input / 65535f; |
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Assert.Equal(scaledInput, actual.X); |
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Assert.Equal(scaledInput, actual.Y); |
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Assert.Equal(scaledInput, actual.Z); |
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Assert.Equal(1, actual.W); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4() |
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{ |
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// arrange
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Gray16 gray = default; |
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int expected = 32767; |
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Vector4 scaled = new Gray16((ushort)expected).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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ushort actual = gray.PackedValue; |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToRgb24() |
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{ |
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// arrange
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Rgb24 actual = default; |
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Gray16 gray = default; |
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var expected = new Rgb24(128, 128, 128); |
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Vector4 scaled = new Gray16(32768).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToRgb24(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToRgba32() |
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{ |
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// arrange
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Rgba32 actual = default; |
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Gray16 gray = default; |
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var expected = new Rgba32(128, 128, 128, 255); |
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Vector4 scaled = new Gray16(32768).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToRgba32(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToBgr24() |
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{ |
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// arrange
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Bgr24 actual = default; |
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Gray16 gray = default; |
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var expected = new Bgr24(128, 128, 128); |
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Vector4 scaled = new Gray16(32768).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToBgr24(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToBgra32() |
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{ |
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// arrange
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Bgra32 actual = default; |
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Gray16 gray = default; |
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var expected = new Bgra32(128,128,128); |
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Vector4 scaled = new Gray16(32768).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToBgra32(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToArgb32() |
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{ |
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// arrange
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Gray16 gray = default; |
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Argb32 actual = default; |
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var expected = new Argb32(128, 128, 128); |
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Vector4 scaled = new Gray16(32768).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToArgb32(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromScaledVector4_ToRgba64() |
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{ |
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// arrange
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Gray16 gray = default; |
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Rgba64 actual = default; |
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var expected = new Rgba64(65535, 65535, 65535, 65535); |
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Vector4 scaled = new Gray16(65535).ToScaledVector4(); |
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// act
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gray.PackFromScaledVector4(scaled); |
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gray.ToRgba64(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromRgb48_ToRgb48() |
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{ |
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// arrange
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var gray = default(Gray16); |
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var actual = default(Rgb48); |
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var expected = new Rgb48(0, 0, 0); |
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// act
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gray.PackFromRgb48(expected); |
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gray.ToRgb48(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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[Fact] |
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public void Gray16_PackFromRgba64_ToRgba64() |
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{ |
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// arrange
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var gray = default(Gray16); |
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var actual = default(Rgba64); |
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var expected = new Rgba64(0, 0, 0, 65535); |
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// act
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gray.PackFromRgba64(expected); |
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gray.ToRgba64(ref actual); |
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// assert
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Assert.Equal(expected, actual); |
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} |
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} |
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} |
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