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58 lines
2.2 KiB
58 lines
2.2 KiB
// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Processing;
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using SixLabors.ImageSharp.Processing.Processors.Quantization;
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using Xunit;
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namespace SixLabors.ImageSharp.Tests.Processing.Processors.Quantization
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{
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public class WuQuantizerTests
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{
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[Fact]
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public void WuQuantizerConstructor()
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{
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var quantizer = new WuQuantizer(128);
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Assert.Equal(128, quantizer.MaxColors);
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Assert.Equal(KnownDiffusers.FloydSteinberg, quantizer.Diffuser);
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quantizer = new WuQuantizer(false);
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Assert.Equal(QuantizerConstants.MaxColors, quantizer.MaxColors);
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Assert.Null(quantizer.Diffuser);
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quantizer = new WuQuantizer(KnownDiffusers.Atkinson);
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Assert.Equal(QuantizerConstants.MaxColors, quantizer.MaxColors);
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Assert.Equal(KnownDiffusers.Atkinson, quantizer.Diffuser);
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quantizer = new WuQuantizer(KnownDiffusers.Atkinson, 128);
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Assert.Equal(128, quantizer.MaxColors);
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Assert.Equal(KnownDiffusers.Atkinson, quantizer.Diffuser);
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}
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[Fact]
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public void WuQuantizerCanCreateFrameQuantizer()
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{
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var quantizer = new WuQuantizer();
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IFrameQuantizer<Rgba32> frameQuantizer = quantizer.CreateFrameQuantizer<Rgba32>(Configuration.Default);
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Assert.NotNull(frameQuantizer);
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Assert.True(frameQuantizer.Dither);
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Assert.Equal(KnownDiffusers.FloydSteinberg, frameQuantizer.Dither);
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quantizer = new WuQuantizer(false);
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frameQuantizer = quantizer.CreateFrameQuantizer<Rgba32>(Configuration.Default);
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Assert.NotNull(frameQuantizer);
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Assert.False(frameQuantizer.Dither);
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Assert.Null(frameQuantizer.Dither);
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quantizer = new WuQuantizer(KnownDiffusers.Atkinson);
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frameQuantizer = quantizer.CreateFrameQuantizer<Rgba32>(Configuration.Default);
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Assert.NotNull(frameQuantizer);
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Assert.True(frameQuantizer.Dither);
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Assert.Equal(KnownDiffusers.Atkinson, frameQuantizer.Dither);
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}
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}
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}
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