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51 lines
2.3 KiB
51 lines
2.3 KiB
// Copyright (c) Six Labors.
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// Licensed under the Six Labors Split License.
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using SixLabors.ImageSharp.Formats.Tiff.Utils;
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using SixLabors.ImageSharp.PixelFormats;
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namespace SixLabors.ImageSharp.Tests.Formats.Tiff.Utils;
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[Trait("Format", "Tiff")]
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public class TiffUtilitiesTest
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{
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[Theory]
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[InlineData(0, 0, 0, 0)]
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[InlineData(42, 84, 128, 0)]
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[InlineData(65535, 65535, 65535, 0)]
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public void ColorFromRgba64Premultiplied_WithZeroAlpha_ReturnsDefaultPixel(ushort r, ushort g, ushort b, ushort a)
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{
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Rgba64 actual = TiffUtilities.ColorFromRgba64Premultiplied<Rgba64>(r, g, b, a);
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Assert.Equal(default, actual);
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}
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[Theory]
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[InlineData(65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535)]
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[InlineData(32767, 0, 0, 65535, 32767, 0, 0, 65535)]
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[InlineData(0, 32767, 0, 65535, 0, 32767, 0, 65535)]
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[InlineData(0, 0, 32767, 65535, 0, 0, 32767, 65535)]
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public void ColorFromRgba64Premultiplied_WithNoAlpha_ReturnExpectedValues(ushort r, ushort g, ushort b, ushort a, ushort expectedR, ushort expectedG, ushort expectedB, ushort expectedA)
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{
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Rgba64 actual = TiffUtilities.ColorFromRgba64Premultiplied<Rgba64>(r, g, b, a);
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Assert.Equal(new Rgba64(expectedR, expectedG, expectedB, expectedA), actual);
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}
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[Theory]
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[InlineData(32766, 0, 0, 32766, 65535, 0, 0, 32766)] // Red, 50% Alpha
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[InlineData(0, 32766, 0, 32766, 0, 65535, 0, 32766)] // Green, 50% Alpha
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[InlineData(0, 0, 32766, 32766, 0, 0, 65535, 32766)] // Blue, 50% Alpha
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[InlineData(8191, 0, 0, 16383, 32765, 0, 0, 16383)] // Red, 25% Alpha
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[InlineData(0, 8191, 0, 16383, 0, 32765, 0, 16383)] // Green, 25% Alpha
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[InlineData(0, 0, 8191, 16383, 0, 0, 32765, 16383)] // Blue, 25% Alpha
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[InlineData(8191, 0, 0, 0, 0, 0, 0, 0)] // Red, 0% Alpha
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[InlineData(0, 8191, 0, 0, 0, 0, 0, 0)] // Green, 0% Alpha
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[InlineData(0, 0, 8191, 0, 0, 0, 0, 0)] // Blue, 0% Alpha
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public void ColorFromRgba64Premultiplied_WithAlpha_ReturnExpectedValues(ushort r, ushort g, ushort b, ushort a, ushort expectedR, ushort expectedG, ushort expectedB, ushort expectedA)
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{
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Rgba64 actual = TiffUtilities.ColorFromRgba64Premultiplied<Rgba64>(r, g, b, a);
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Assert.Equal(new Rgba64(expectedR, expectedG, expectedB, expectedA), actual);
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}
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}
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