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73 lines
2.3 KiB
73 lines
2.3 KiB
// 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 Bgr565Tests
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{
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[Fact]
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public void Bgr565_PackedValue()
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{
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Assert.Equal(6160, new Bgr565(0.1F, -0.3F, 0.5F).PackedValue);
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Assert.Equal(0x0, new Bgr565(Vector3.Zero).PackedValue);
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Assert.Equal(0xFFFF, new Bgr565(Vector3.One).PackedValue);
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// Make sure the swizzle is correct.
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Assert.Equal(0xF800, new Bgr565(Vector3.UnitX).PackedValue);
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Assert.Equal(0x07E0, new Bgr565(Vector3.UnitY).PackedValue);
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Assert.Equal(0x001F, new Bgr565(Vector3.UnitZ).PackedValue);
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}
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[Fact]
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public void Bgr565_ToVector3()
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{
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Assert.Equal(Vector3.One, new Bgr565(Vector3.One).ToVector3());
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Assert.Equal(Vector3.Zero, new Bgr565(Vector3.Zero).ToVector3());
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Assert.Equal(Vector3.UnitX, new Bgr565(Vector3.UnitX).ToVector3());
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Assert.Equal(Vector3.UnitY, new Bgr565(Vector3.UnitY).ToVector3());
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Assert.Equal(Vector3.UnitZ, new Bgr565(Vector3.UnitZ).ToVector3());
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}
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[Fact]
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public void Bgr565_ToScaledVector4()
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{
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// arrange
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var bgr = new Bgr565(Vector3.One);
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// act
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Vector4 actual = bgr.ToScaledVector4();
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// assert
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Assert.Equal(1, actual.X);
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Assert.Equal(1, actual.Y);
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Assert.Equal(1, 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 Bgr565_FromScaledVector4()
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{
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// arrange
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Vector4 scaled = new Bgr565(Vector3.One).ToScaledVector4();
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int expected = 0xFFFF;
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var pixel = default(Bgr565);
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// act
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pixel.FromScaledVector4(scaled);
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ushort actual = pixel.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 Bgr565_Clamping()
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{
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Assert.Equal(Vector3.Zero, new Bgr565(Vector3.One * -1234F).ToVector3());
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Assert.Equal(Vector3.One, new Bgr565(Vector3.One * 1234F).ToVector3());
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}
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}
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}
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