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66 lines
2.1 KiB
66 lines
2.1 KiB
// Copyright (c) Six Labors.
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// Licensed under the Six Labors Split License.
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using SixLabors.ImageSharp.PixelFormats;
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using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
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using static SixLabors.ImageSharp.Tests.TestImages.Pbm;
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// ReSharper disable InconsistentNaming
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namespace SixLabors.ImageSharp.Tests.Formats.Pbm;
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[Trait("Format", "Pbm")]
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public class PbmRoundTripTests
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{
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[Theory]
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[InlineData(BlackAndWhitePlain)]
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[InlineData(BlackAndWhiteBinary)]
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[InlineData(GrayscalePlain)]
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[InlineData(GrayscalePlainNormalized)]
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[InlineData(GrayscalePlainMagick)]
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[InlineData(GrayscaleBinary)]
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public void PbmGrayscaleImageCanRoundTrip(string imagePath)
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{
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// Arrange
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var testFile = TestFile.Create(imagePath);
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using var stream = new MemoryStream(testFile.Bytes, false);
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// Act
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using var originalImage = Image.Load(stream);
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using Image<Rgb24> colorImage = originalImage.CloneAs<Rgb24>();
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using Image<Rgb24> encodedImage = this.RoundTrip(colorImage);
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// Assert
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Assert.NotNull(encodedImage);
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ImageComparer.Exact.VerifySimilarity(colorImage, encodedImage);
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}
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[Theory]
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[InlineData(RgbPlain)]
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[InlineData(RgbPlainNormalized)]
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[InlineData(RgbPlainMagick)]
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[InlineData(RgbBinary)]
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public void PbmColorImageCanRoundTrip(string imagePath)
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{
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// Arrange
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var testFile = TestFile.Create(imagePath);
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using var stream = new MemoryStream(testFile.Bytes, false);
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// Act
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using var originalImage = Image.Load<Rgb24>(stream);
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using Image<Rgb24> encodedImage = this.RoundTrip(originalImage);
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// Assert
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Assert.NotNull(encodedImage);
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ImageComparer.Exact.VerifySimilarity(originalImage, encodedImage);
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}
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private Image<TPixel> RoundTrip<TPixel>(Image<TPixel> originalImage)
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where TPixel : unmanaged, IPixel<TPixel>
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{
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using var decodedStream = new MemoryStream();
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originalImage.SaveAsPbm(decodedStream);
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decodedStream.Seek(0, SeekOrigin.Begin);
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var encodedImage = Image.Load<TPixel>(decodedStream);
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return encodedImage;
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}
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}
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