diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml index e17b8d724e..ec3ebfa1dc 100644 --- a/.github/workflows/build-and-test.yml +++ b/.github/workflows/build-and-test.yml @@ -67,8 +67,10 @@ jobs: steps: - name: Install libgdi+, which is required for tests running on ubuntu - if: ${{ matrix.options.os == 'buildjet-4vcpu-ubuntu-2204-arm' }} - run: sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev + if: ${{ contains(matrix.options.os, 'ubuntu') }} + run: | + sudo apt-get update + sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev - name: Git Config shell: bash @@ -108,18 +110,12 @@ jobs: restore-keys: ${{ runner.os }}-nuget- - name: DotNet Setup - if: ${{ matrix.options.sdk-preview != true }} - uses: actions/setup-dotnet@v3 - with: - dotnet-version: | - 6.0.x - - - name: DotNet Setup Preview - if: ${{ matrix.options.sdk-preview == true }} - uses: actions/setup-dotnet@v3 + uses: actions/setup-dotnet@v4 with: dotnet-version: | + 8.0.x 7.0.x + 6.0.x - name: DotNet Build if: ${{ matrix.options.sdk-preview != true }} @@ -152,7 +148,7 @@ jobs: XUNIT_PATH: .\tests\ImageSharp.Tests # Required for xunit - name: Export Failed Output - uses: actions/upload-artifact@v3 + uses: actions/upload-artifact@v4 if: failure() with: name: actual_output_${{ runner.os }}_${{ matrix.options.framework }}${{ matrix.options.runtime }}.zip diff --git a/.github/workflows/code-coverage.yml b/.github/workflows/code-coverage.yml index e551afbd6d..de95bf01b2 100644 --- a/.github/workflows/code-coverage.yml +++ b/.github/workflows/code-coverage.yml @@ -17,6 +17,11 @@ jobs: runs-on: ${{matrix.options.os}} steps: + - name: Install libgdi+, which is required for tests running on ubuntu + run: | + sudo apt-get update + sudo apt-get -y install libgdiplus libgif-dev libglib2.0-dev libcairo2-dev libtiff-dev libexif-dev + - name: Git Config shell: bash run: | @@ -55,9 +60,11 @@ jobs: restore-keys: ${{ runner.os }}-nuget- - name: DotNet Setup - uses: actions/setup-dotnet@v3 + uses: actions/setup-dotnet@v4 with: dotnet-version: | + 8.0.x + 7.0.x 6.0.x - name: DotNet Build diff --git a/Directory.Build.props b/Directory.Build.props index 26b3cc5afc..c94d9cbc9c 100644 --- a/Directory.Build.props +++ b/Directory.Build.props @@ -21,9 +21,9 @@ - + - preview + 12.0 + True + False diff --git a/src/ImageSharp/IndexedImageFrame{TPixel}.cs b/src/ImageSharp/IndexedImageFrame{TPixel}.cs index 6807e77ad2..49c9e33eb1 100644 --- a/src/ImageSharp/IndexedImageFrame{TPixel}.cs +++ b/src/ImageSharp/IndexedImageFrame{TPixel}.cs @@ -30,7 +30,7 @@ public sealed class IndexedImageFrame : IPixelSource, IDisposable /// The frame width. /// The frame height. /// The color palette. - internal IndexedImageFrame(Configuration configuration, int width, int height, ReadOnlyMemory palette) + public IndexedImageFrame(Configuration configuration, int width, int height, ReadOnlyMemory palette) { Guard.NotNull(configuration, nameof(configuration)); Guard.MustBeLessThanOrEqualTo(palette.Length, QuantizerConstants.MaxColors, nameof(palette)); @@ -42,7 +42,7 @@ internal IndexedImageFrame(Configuration configuration, int width, int height, R this.Height = height; this.pixelBuffer = configuration.MemoryAllocator.Allocate2D(width, height); - // Copy the palette over. We want the lifetime of this frame to be independant of any palette source. + // Copy the palette over. We want the lifetime of this frame to be independent of any palette source. this.paletteOwner = configuration.MemoryAllocator.Allocate(palette.Length); palette.Span.CopyTo(this.paletteOwner.GetSpan()); this.Palette = this.paletteOwner.Memory[..palette.Length]; diff --git a/src/ImageSharp/Memory/Buffer2DExtensions.cs b/src/ImageSharp/Memory/Buffer2DExtensions.cs index 2eb05ea935..ffddfcbd0e 100644 --- a/src/ImageSharp/Memory/Buffer2DExtensions.cs +++ b/src/ImageSharp/Memory/Buffer2DExtensions.cs @@ -25,6 +25,39 @@ public static IMemoryGroup GetMemoryGroup(this Buffer2D buffer) return buffer.FastMemoryGroup.View; } + /// + /// Performs a deep clone of the buffer covering the specified . + /// + /// The element type. + /// The source buffer. + /// The configuration. + /// The rectangle to clone. + /// The . + internal static Buffer2D CloneRegion(this Buffer2D source, Configuration configuration, Rectangle rectangle) + where T : unmanaged + { + Buffer2D buffer = configuration.MemoryAllocator.Allocate2D( + rectangle.Width, + rectangle.Height, + configuration.PreferContiguousImageBuffers); + + // Optimization for when the size of the area is the same as the buffer size. + Buffer2DRegion sourceRegion = source.GetRegion(rectangle); + if (sourceRegion.IsFullBufferArea) + { + sourceRegion.Buffer.FastMemoryGroup.CopyTo(buffer.FastMemoryGroup); + } + else + { + for (int y = 0; y < rectangle.Height; y++) + { + sourceRegion.DangerousGetRowSpan(y).CopyTo(buffer.DangerousGetRowSpan(y)); + } + } + + return buffer; + } + /// /// TODO: Does not work with multi-buffer groups, should be specific to Resize. /// Copy columns of inplace, diff --git a/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs b/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs index 953ef74afb..fe510f250d 100644 --- a/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs +++ b/src/ImageSharp/Metadata/Profiles/Exif/ExifReader.cs @@ -7,6 +7,7 @@ using System.Diagnostics; using System.Globalization; using System.Runtime.CompilerServices; +using System.Runtime.InteropServices; using System.Text; using SixLabors.ImageSharp.Memory; @@ -187,11 +188,21 @@ protected void ReadValues(List values, uint offset) protected void ReadSubIfd(List values) { - if (this.subIfds is not null) + if (this.subIfds != null) { - foreach (ulong subIfdOffset in this.subIfds) + const int maxSubIfds = 8; + const int maxNestingLevel = 8; + Span buf = stackalloc ulong[maxSubIfds]; + for (int i = 0; i < maxNestingLevel && this.subIfds.Count > 0; i++) { - this.ReadValues(values, (uint)subIfdOffset); + int sz = Math.Min(this.subIfds.Count, maxSubIfds); + CollectionsMarshal.AsSpan(this.subIfds)[..sz].CopyTo(buf); + + this.subIfds.Clear(); + foreach (ulong subIfdOffset in buf[..sz]) + { + this.ReadValues(values, (uint)subIfdOffset); + } } } } @@ -481,8 +492,9 @@ private void Add(IList values, IExifValue exif, object? value) foreach (IExifValue val in values) { - // Sometimes duplicates appear, can compare val.Tag == exif.Tag - if (val == exif) + // to skip duplicates must be used Equals method, + // == operator not defined for ExifValue and IExifValue + if (exif.Equals(val)) { Debug.WriteLine($"Duplicate Exif tag: tag={exif.Tag}, dataType={exif.DataType}"); return; diff --git a/src/ImageSharp/Metadata/Profiles/Exif/Tags/ExifTagValue.cs b/src/ImageSharp/Metadata/Profiles/Exif/Tags/ExifTagValue.cs index 56e8a3ffd1..07dbc51e7d 100644 --- a/src/ImageSharp/Metadata/Profiles/Exif/Tags/ExifTagValue.cs +++ b/src/ImageSharp/Metadata/Profiles/Exif/Tags/ExifTagValue.cs @@ -23,14 +23,6 @@ internal enum ExifTagValue /// GPSIFDOffset = 0x8825, - /// - /// Indicates the identification of the Interoperability rule. - /// See https://www.awaresystems.be/imaging/tiff/tifftags/privateifd/interoperability/interoperabilityindex.html - /// - [ExifTagDescription("R98", "Indicates a file conforming to R98 file specification of Recommended Exif Interoperability Rules (ExifR98) or to DCF basic file stipulated by Design Rule for Camera File System.")] - [ExifTagDescription("THM", "Indicates a file conforming to DCF thumbnail file stipulated by Design rule for Camera File System.")] - InteroperabilityIndex = 0x0001, - /// /// A general indication of the kind of data contained in this subfile. /// See Section 8: Baseline Fields. diff --git a/src/ImageSharp/Processing/AffineTransformBuilder.cs b/src/ImageSharp/Processing/AffineTransformBuilder.cs index 59264698bd..4ac9546f39 100644 --- a/src/ImageSharp/Processing/AffineTransformBuilder.cs +++ b/src/ImageSharp/Processing/AffineTransformBuilder.cs @@ -12,7 +12,28 @@ namespace SixLabors.ImageSharp.Processing; public class AffineTransformBuilder { private readonly List> transformMatrixFactories = new(); - private readonly List> boundsMatrixFactories = new(); + + /// + /// Initializes a new instance of the class. + /// + public AffineTransformBuilder() + : this(TransformSpace.Pixel) + { + } + + /// + /// Initializes a new instance of the class. + /// + /// + /// The to use when applying the affine transform. + /// + public AffineTransformBuilder(TransformSpace transformSpace) + => this.TransformSpace = transformSpace; + + /// + /// Gets the to use when applying the affine transform. + /// + public TransformSpace TransformSpace { get; } /// /// Prepends a rotation matrix using the given rotation angle in degrees @@ -31,8 +52,7 @@ public AffineTransformBuilder PrependRotationDegrees(float degrees) /// The . public AffineTransformBuilder PrependRotationRadians(float radians) => this.Prepend( - size => TransformUtils.CreateRotationTransformMatrixRadians(radians, size), - size => TransformUtils.CreateRotationBoundsMatrixRadians(radians, size)); + size => TransformUtils.CreateRotationTransformMatrixRadians(radians, size, this.TransformSpace)); /// /// Prepends a rotation matrix using the given rotation in degrees at the given origin. @@ -68,9 +88,7 @@ public AffineTransformBuilder AppendRotationDegrees(float degrees) /// The amount of rotation, in radians. /// The . public AffineTransformBuilder AppendRotationRadians(float radians) - => this.Append( - size => TransformUtils.CreateRotationTransformMatrixRadians(radians, size), - size => TransformUtils.CreateRotationBoundsMatrixRadians(radians, size)); + => this.Append(size => TransformUtils.CreateRotationTransformMatrixRadians(radians, size, this.TransformSpace)); /// /// Appends a rotation matrix using the given rotation in degrees at the given origin. @@ -145,9 +163,7 @@ public AffineTransformBuilder AppendScale(Vector2 scales) /// The Y angle, in degrees. /// The . public AffineTransformBuilder PrependSkewDegrees(float degreesX, float degreesY) - => this.Prepend( - size => TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, size), - size => TransformUtils.CreateSkewBoundsMatrixDegrees(degreesX, degreesY, size)); + => this.PrependSkewRadians(GeometryUtilities.DegreeToRadian(degreesX), GeometryUtilities.DegreeToRadian(degreesY)); /// /// Prepends a centered skew matrix from the give angles in radians. @@ -156,9 +172,7 @@ public AffineTransformBuilder PrependSkewDegrees(float degreesX, float degreesY) /// The Y angle, in radians. /// The . public AffineTransformBuilder PrependSkewRadians(float radiansX, float radiansY) - => this.Prepend( - size => TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size), - size => TransformUtils.CreateSkewBoundsMatrixRadians(radiansX, radiansY, size)); + => this.Prepend(size => TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size, this.TransformSpace)); /// /// Prepends a skew matrix using the given angles in degrees at the given origin. @@ -187,9 +201,7 @@ public AffineTransformBuilder PrependSkewRadians(float radiansX, float radiansY, /// The Y angle, in degrees. /// The . public AffineTransformBuilder AppendSkewDegrees(float degreesX, float degreesY) - => this.Append( - size => TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, size), - size => TransformUtils.CreateSkewBoundsMatrixDegrees(degreesX, degreesY, size)); + => this.AppendSkewRadians(GeometryUtilities.DegreeToRadian(degreesX), GeometryUtilities.DegreeToRadian(degreesY)); /// /// Appends a centered skew matrix from the give angles in radians. @@ -198,9 +210,7 @@ public AffineTransformBuilder AppendSkewDegrees(float degreesX, float degreesY) /// The Y angle, in radians. /// The . public AffineTransformBuilder AppendSkewRadians(float radiansX, float radiansY) - => this.Append( - size => TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size), - size => TransformUtils.CreateSkewBoundsMatrixRadians(radiansX, radiansY, size)); + => this.Append(size => TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size, this.TransformSpace)); /// /// Appends a skew matrix using the given angles in degrees at the given origin. @@ -267,7 +277,7 @@ public AffineTransformBuilder AppendTranslation(Vector2 position) public AffineTransformBuilder PrependMatrix(Matrix3x2 matrix) { CheckDegenerate(matrix); - return this.Prepend(_ => matrix, _ => matrix); + return this.Prepend(_ => matrix); } /// @@ -283,7 +293,7 @@ public AffineTransformBuilder PrependMatrix(Matrix3x2 matrix) public AffineTransformBuilder AppendMatrix(Matrix3x2 matrix) { CheckDegenerate(matrix); - return this.Append(_ => matrix, _ => matrix); + return this.Append(_ => matrix); } /// @@ -340,13 +350,13 @@ public Size GetTransformedSize(Rectangle sourceRectangle) // Translate the origin matrix to cater for source rectangle offsets. Matrix3x2 matrix = Matrix3x2.CreateTranslation(-sourceRectangle.Location); - foreach (Func factory in this.boundsMatrixFactories) + foreach (Func factory in this.transformMatrixFactories) { matrix *= factory(size); CheckDegenerate(matrix); } - return TransformUtils.GetTransformedSize(size, matrix); + return TransformUtils.GetTransformedSize(matrix, size, this.TransformSpace); } private static void CheckDegenerate(Matrix3x2 matrix) @@ -357,17 +367,15 @@ private static void CheckDegenerate(Matrix3x2 matrix) } } - private AffineTransformBuilder Prepend(Func transformFactory, Func boundsFactory) + private AffineTransformBuilder Prepend(Func transformFactory) { this.transformMatrixFactories.Insert(0, transformFactory); - this.boundsMatrixFactories.Insert(0, boundsFactory); return this; } - private AffineTransformBuilder Append(Func transformFactory, Func boundsFactory) + private AffineTransformBuilder Append(Func transformFactory) { this.transformMatrixFactories.Add(transformFactory); - this.boundsMatrixFactories.Add(boundsFactory); return this; } } diff --git a/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessor{TPixel}.cs b/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessor{TPixel}.cs index 982cc7d46c..94a23ef5fe 100644 --- a/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessor{TPixel}.cs +++ b/src/ImageSharp/Processing/Processors/Dithering/PaletteDitherProcessor{TPixel}.cs @@ -80,7 +80,7 @@ protected override void Dispose(bool disposing) Justification = "https://github.com/dotnet/roslyn-analyzers/issues/6151")] internal readonly struct DitherProcessor : IPaletteDitherImageProcessor, IDisposable { - private readonly EuclideanPixelMap pixelMap; + private readonly PixelMap pixelMap; [MethodImpl(InliningOptions.ShortMethod)] public DitherProcessor( @@ -89,7 +89,7 @@ public DitherProcessor( float ditherScale) { this.Configuration = configuration; - this.pixelMap = new EuclideanPixelMap(configuration, palette); + this.pixelMap = PixelMapFactory.Create(configuration, palette, ColorMatchingMode.Coarse); this.Palette = palette; this.DitherScale = ditherScale; } @@ -103,7 +103,7 @@ public DitherProcessor( [MethodImpl(InliningOptions.ShortMethod)] public TPixel GetPaletteColor(TPixel color) { - this.pixelMap.GetClosestColor(color, out TPixel match); + _ = this.pixelMap.GetClosestColor(color, out TPixel match); return match; } diff --git a/src/ImageSharp/Processing/Processors/Quantization/ColorMatchingMode.cs b/src/ImageSharp/Processing/Processors/Quantization/ColorMatchingMode.cs new file mode 100644 index 0000000000..26fd7d5d76 --- /dev/null +++ b/src/ImageSharp/Processing/Processors/Quantization/ColorMatchingMode.cs @@ -0,0 +1,28 @@ +// Copyright (c) Six Labors. +// Licensed under the Six Labors Split License. + +namespace SixLabors.ImageSharp.Processing.Processors.Quantization; + +/// +/// Defines the precision level used when matching colors during quantization. +/// +public enum ColorMatchingMode +{ + /// + /// Uses a coarse caching strategy optimized for performance at the expense of exact matches. + /// This provides the fastest matching but may yield approximate results. + /// + Coarse, + + /// + /// Enables an exact color match cache for the first 512 unique colors encountered, + /// falling back to coarse matching thereafter. + /// + Hybrid, + + /// + /// Performs exact color matching without any caching optimizations. + /// This is the slowest but most accurate matching strategy. + /// + Exact +} diff --git a/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel,TCache}.cs b/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel,TCache}.cs new file mode 100644 index 0000000000..a900d643bd --- /dev/null +++ b/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel,TCache}.cs @@ -0,0 +1,219 @@ +// Copyright (c) Six Labors. +// Licensed under the Six Labors Split License. + +using System.Runtime.CompilerServices; +using System.Runtime.InteropServices; +using System.Runtime.Versioning; +using SixLabors.ImageSharp.PixelFormats; + +namespace SixLabors.ImageSharp.Processing.Processors.Quantization; + +/// +/// Gets the closest color to the supplied color based upon the Euclidean distance. +/// +/// The pixel format. +/// The cache type. +/// +/// This class is not thread safe and should not be accessed in parallel. +/// Doing so will result in non-idempotent results. +/// +internal sealed class EuclideanPixelMap : PixelMap + where TPixel : unmanaged, IPixel + where TCache : struct, IColorIndexCache +{ + private Rgba32[] rgbaPalette; + private int transparentIndex; + private readonly TPixel transparentMatch; + + // Do not make readonly. It's a mutable struct. +#pragma warning disable IDE0044 // Add readonly modifier + private TCache cache; +#pragma warning restore IDE0044 // Add readonly modifier + private readonly Configuration configuration; + + /// + /// Initializes a new instance of the class. + /// + /// The configuration. + /// The color palette to map from. + /// An explicit index at which to match transparent pixels. + [RequiresPreviewFeatures] + public EuclideanPixelMap( + Configuration configuration, + ReadOnlyMemory palette, + int transparentIndex = -1) + { + this.configuration = configuration; + this.cache = TCache.Create(configuration.MemoryAllocator); + + this.Palette = palette; + this.rgbaPalette = new Rgba32[palette.Length]; + PixelOperations.Instance.ToRgba32(configuration, this.Palette.Span, this.rgbaPalette); + + this.transparentIndex = transparentIndex; + Unsafe.SkipInit(out this.transparentMatch); + this.transparentMatch.FromRgba32(default); + } + + /// + [MethodImpl(InliningOptions.ShortMethod)] + public override int GetClosestColor(TPixel color, out TPixel match) + { + ref TPixel paletteRef = ref MemoryMarshal.GetReference(this.Palette.Span); + Unsafe.SkipInit(out Rgba32 rgba); + color.ToRgba32(ref rgba); + + // Check if the color is in the lookup table + if (this.cache.TryGetValue(rgba, out short index)) + { + match = Unsafe.Add(ref paletteRef, (ushort)index); + return index; + } + + return this.GetClosestColorSlow(rgba, ref paletteRef, out match); + } + + /// + public override void Clear(ReadOnlyMemory palette) + { + this.Palette = palette; + this.rgbaPalette = new Rgba32[palette.Length]; + PixelOperations.Instance.ToRgba32(this.configuration, this.Palette.Span, this.rgbaPalette); + this.transparentIndex = -1; + this.cache.Clear(); + } + + /// + public override void SetTransparentIndex(int index) + { + if (index != this.transparentIndex) + { + this.cache.Clear(); + } + + this.transparentIndex = index; + } + + [MethodImpl(InliningOptions.ColdPath)] + private int GetClosestColorSlow(Rgba32 rgba, ref TPixel paletteRef, out TPixel match) + { + // Loop through the palette and find the nearest match. + int index = 0; + + if (this.transparentIndex >= 0 && rgba == default) + { + // We have explicit instructions. No need to search. + index = this.transparentIndex; + _ = this.cache.TryAdd(rgba, (short)index); + match = this.transparentMatch; + return index; + } + + float leastDistance = float.MaxValue; + for (int i = 0; i < this.rgbaPalette.Length; i++) + { + Rgba32 candidate = this.rgbaPalette[i]; + float distance = DistanceSquared(rgba, candidate); + + // If it's an exact match, exit the loop + if (distance == 0) + { + index = i; + break; + } + + if (distance < leastDistance) + { + // Less than... assign. + index = i; + leastDistance = distance; + } + } + + // Now I have the index, pop it into the cache for next time + _ = this.cache.TryAdd(rgba, (short)index); + match = Unsafe.Add(ref paletteRef, (uint)index); + + return index; + } + + [MethodImpl(InliningOptions.ShortMethod)] + private static float DistanceSquared(Rgba32 a, Rgba32 b) + { + float deltaR = a.R - b.R; + float deltaG = a.G - b.G; + float deltaB = a.B - b.B; + float deltaA = a.A - b.A; + return (deltaR * deltaR) + (deltaG * deltaG) + (deltaB * deltaB) + (deltaA * deltaA); + } + + /// + public override void Dispose() => this.cache.Dispose(); +} + +/// +/// Represents a map of colors to indices. +/// +/// The pixel format. +internal abstract class PixelMap : IDisposable + where TPixel : unmanaged, IPixel +{ + /// + /// Gets the color palette of this . + /// + public ReadOnlyMemory Palette { get; private protected set; } + + /// + /// Returns the closest color in the palette and the index of that pixel. + /// + /// The color to match. + /// The matched color. + /// + /// The index. + /// + public abstract int GetClosestColor(TPixel color, out TPixel match); + + /// + /// Clears the map, resetting it to use the given palette. + /// + /// The color palette to map from. + public abstract void Clear(ReadOnlyMemory palette); + + /// + /// Allows setting the transparent index after construction. + /// + /// An explicit index at which to match transparent pixels. + public abstract void SetTransparentIndex(int index); + + /// + public abstract void Dispose(); +} + +/// +/// A factory for creating instances. +/// +internal static class PixelMapFactory +{ + /// + /// Creates a new instance. + /// + /// The pixel format. + /// The configuration. + /// The color palette to map from. + /// The color matching mode. + /// An explicit index at which to match transparent pixels. + /// + /// The . + /// + public static PixelMap Create( + Configuration configuration, + ReadOnlyMemory palette, + ColorMatchingMode colorMatchingMode, + int transparentIndex = -1) + where TPixel : unmanaged, IPixel => colorMatchingMode switch + { + ColorMatchingMode.Hybrid => new EuclideanPixelMap(configuration, palette, transparentIndex), + ColorMatchingMode.Exact => new EuclideanPixelMap(configuration, palette, transparentIndex), + _ => new EuclideanPixelMap(configuration, palette, transparentIndex), + }; +} diff --git a/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel}.cs b/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel}.cs deleted file mode 100644 index 72148374aa..0000000000 --- a/src/ImageSharp/Processing/Processors/Quantization/EuclideanPixelMap{TPixel}.cs +++ /dev/null @@ -1,260 +0,0 @@ -// Copyright (c) Six Labors. -// Licensed under the Six Labors Split License. - -using System.Buffers; -using System.Runtime.CompilerServices; -using System.Runtime.InteropServices; -using SixLabors.ImageSharp.Memory; -using SixLabors.ImageSharp.PixelFormats; - -namespace SixLabors.ImageSharp.Processing.Processors.Quantization; - -/// -/// Gets the closest color to the supplied color based upon the Euclidean distance. -/// -/// The pixel format. -/// -/// This class is not thread safe and should not be accessed in parallel. -/// Doing so will result in non-idempotent results. -/// -internal sealed class EuclideanPixelMap : IDisposable - where TPixel : unmanaged, IPixel -{ - private Rgba32[] rgbaPalette; - private int transparentIndex; - private readonly TPixel transparentMatch; - - /// - /// Do not make this readonly! Struct value would be always copied on non-readonly method calls. - /// - private ColorDistanceCache cache; - private readonly Configuration configuration; - - /// - /// Initializes a new instance of the class. - /// - /// The configuration. - /// The color palette to map from. - public EuclideanPixelMap(Configuration configuration, ReadOnlyMemory palette) - : this(configuration, palette, -1) - { - } - - /// - /// Initializes a new instance of the class. - /// - /// The configuration. - /// The color palette to map from. - /// An explicit index at which to match transparent pixels. - public EuclideanPixelMap(Configuration configuration, ReadOnlyMemory palette, int transparentIndex = -1) - { - this.configuration = configuration; - this.Palette = palette; - this.rgbaPalette = new Rgba32[palette.Length]; - this.cache = new ColorDistanceCache(configuration.MemoryAllocator); - PixelOperations.Instance.ToRgba32(configuration, this.Palette.Span, this.rgbaPalette); - - this.transparentIndex = transparentIndex; - Unsafe.SkipInit(out this.transparentMatch); - this.transparentMatch.FromRgba32(default); - } - - /// - /// Gets the color palette of this . - /// The palette memory is owned by the palette source that created it. - /// - public ReadOnlyMemory Palette { get; private set; } - - /// - /// Returns the closest color in the palette and the index of that pixel. - /// The palette contents must match the one used in the constructor. - /// - /// The color to match. - /// The matched color. - /// The index. - [MethodImpl(InliningOptions.ShortMethod)] - public int GetClosestColor(TPixel color, out TPixel match) - { - ref TPixel paletteRef = ref MemoryMarshal.GetReference(this.Palette.Span); - Unsafe.SkipInit(out Rgba32 rgba); - color.ToRgba32(ref rgba); - - // Check if the color is in the lookup table - if (!this.cache.TryGetValue(rgba, out short index)) - { - return this.GetClosestColorSlow(rgba, ref paletteRef, out match); - } - - match = Unsafe.Add(ref paletteRef, (ushort)index); - return index; - } - - /// - /// Clears the map, resetting it to use the given palette. - /// - /// The color palette to map from. - public void Clear(ReadOnlyMemory palette) - { - this.Palette = palette; - this.rgbaPalette = new Rgba32[palette.Length]; - PixelOperations.Instance.ToRgba32(this.configuration, this.Palette.Span, this.rgbaPalette); - this.transparentIndex = -1; - this.cache.Clear(); - } - - /// - /// Allows setting the transparent index after construction. - /// - /// An explicit index at which to match transparent pixels. - public void SetTransparentIndex(int index) - { - if (index != this.transparentIndex) - { - this.cache.Clear(); - } - - this.transparentIndex = index; - } - - [MethodImpl(InliningOptions.ShortMethod)] - private int GetClosestColorSlow(Rgba32 rgba, ref TPixel paletteRef, out TPixel match) - { - // Loop through the palette and find the nearest match. - int index = 0; - - if (this.transparentIndex >= 0 && rgba == default) - { - // We have explicit instructions. No need to search. - index = this.transparentIndex; - this.cache.Add(rgba, (byte)index); - match = this.transparentMatch; - return index; - } - - float leastDistance = float.MaxValue; - for (int i = 0; i < this.rgbaPalette.Length; i++) - { - Rgba32 candidate = this.rgbaPalette[i]; - float distance = DistanceSquared(rgba, candidate); - - // If it's an exact match, exit the loop - if (distance == 0) - { - index = i; - break; - } - - if (distance < leastDistance) - { - // Less than... assign. - index = i; - leastDistance = distance; - } - } - - // Now I have the index, pop it into the cache for next time - this.cache.Add(rgba, (byte)index); - match = Unsafe.Add(ref paletteRef, (uint)index); - return index; - } - - /// - /// Returns the Euclidean distance squared between two specified points. - /// - /// The first point. - /// The second point. - /// The distance squared. - [MethodImpl(InliningOptions.ShortMethod)] - private static float DistanceSquared(Rgba32 a, Rgba32 b) - { - float deltaR = a.R - b.R; - float deltaG = a.G - b.G; - float deltaB = a.B - b.B; - float deltaA = a.A - b.A; - return (deltaR * deltaR) + (deltaG * deltaG) + (deltaB * deltaB) + (deltaA * deltaA); - } - - public void Dispose() => this.cache.Dispose(); - - /// - /// A cache for storing color distance matching results. - /// - /// - /// - /// The granularity of the cache has been determined based upon the current - /// suite of test images and provides the lowest possible memory usage while - /// providing enough match accuracy. - /// Entry count is currently limited to 2335905 entries (4MB). - /// - /// - private unsafe struct ColorDistanceCache : IDisposable - { - private const int IndexRBits = 5; - private const int IndexGBits = 5; - private const int IndexBBits = 5; - private const int IndexABits = 6; - private const int IndexRCount = (1 << IndexRBits) + 1; - private const int IndexGCount = (1 << IndexGBits) + 1; - private const int IndexBCount = (1 << IndexBBits) + 1; - private const int IndexACount = (1 << IndexABits) + 1; - private const int RShift = 8 - IndexRBits; - private const int GShift = 8 - IndexGBits; - private const int BShift = 8 - IndexBBits; - private const int AShift = 8 - IndexABits; - private const int Entries = IndexRCount * IndexGCount * IndexBCount * IndexACount; - private MemoryHandle tableHandle; - private readonly IMemoryOwner table; - private readonly short* tablePointer; - - public ColorDistanceCache(MemoryAllocator allocator) - { - this.table = allocator.Allocate(Entries); - this.table.GetSpan().Fill(-1); - this.tableHandle = this.table.Memory.Pin(); - this.tablePointer = (short*)this.tableHandle.Pointer; - } - - [MethodImpl(InliningOptions.ShortMethod)] - public readonly void Add(Rgba32 rgba, byte index) - { - int idx = GetPaletteIndex(rgba); - this.tablePointer[idx] = index; - } - - [MethodImpl(InliningOptions.ShortMethod)] - public readonly bool TryGetValue(Rgba32 rgba, out short match) - { - int idx = GetPaletteIndex(rgba); - match = this.tablePointer[idx]; - return match > -1; - } - - /// - /// Clears the cache resetting each entry to empty. - /// - [MethodImpl(InliningOptions.ShortMethod)] - public readonly void Clear() => this.table.GetSpan().Fill(-1); - - [MethodImpl(InliningOptions.ShortMethod)] - private static int GetPaletteIndex(Rgba32 rgba) - { - int rIndex = rgba.R >> RShift; - int gIndex = rgba.G >> GShift; - int bIndex = rgba.B >> BShift; - int aIndex = rgba.A >> AShift; - - return (aIndex * (IndexRCount * IndexGCount * IndexBCount)) + - (rIndex * (IndexGCount * IndexBCount)) + - (gIndex * IndexBCount) + bIndex; - } - - public void Dispose() - { - if (this.table != null) - { - this.tableHandle.Dispose(); - this.table.Dispose(); - } - } - } -} diff --git a/src/ImageSharp/Processing/Processors/Quantization/IColorIndexCache.cs b/src/ImageSharp/Processing/Processors/Quantization/IColorIndexCache.cs new file mode 100644 index 0000000000..eabe9af850 --- /dev/null +++ b/src/ImageSharp/Processing/Processors/Quantization/IColorIndexCache.cs @@ -0,0 +1,377 @@ +// Copyright (c) Six Labors. +// Licensed under the Six Labors Split License. + +using System.Buffers; +using System.Runtime.CompilerServices; +using System.Runtime.Versioning; +using SixLabors.ImageSharp.Memory; +using SixLabors.ImageSharp.PixelFormats; + +namespace SixLabors.ImageSharp.Processing.Processors.Quantization; + +/// +/// Represents a cache used for efficiently retrieving palette indices for colors. +/// +/// The type of the cache. +internal interface IColorIndexCache : IColorIndexCache + where T : struct, IColorIndexCache +{ + /// + /// Creates a new instance of the cache. + /// + /// The memory allocator to use. + /// + /// The new instance of the cache. + /// +#pragma warning disable IDE0060 // Remove unused parameter + [RequiresPreviewFeatures] + public static abstract T Create(MemoryAllocator allocator); +#pragma warning restore IDE0060 // Remove unused parameter +} + +/// +/// Represents a cache used for efficiently retrieving palette indices for colors. +/// +internal interface IColorIndexCache : IDisposable +{ + /// + /// Adds a color to the cache. + /// + /// The color to add. + /// The index of the color in the palette. + /// + /// if the color was added; otherwise, . + /// + public bool TryAdd(Rgba32 color, short value); + + /// + /// Gets the index of the color in the palette. + /// + /// The color to get the index for. + /// The index of the color in the palette. + /// + /// if the color is in the palette; otherwise, . + /// + public bool TryGetValue(Rgba32 color, out short value); + + /// + /// Clears the cache. + /// + public void Clear(); +} + +/// +/// A hybrid cache for color distance lookups that combines an exact-match dictionary with +/// a fallback coarse lookup table. +/// +/// +/// This cache uses a fallback table with 2,097,152 bins, each storing a 2-byte value +/// (approximately 4 MB total), while the exact-match dictionary is limited to 512 entries +/// and occupies roughly 4 KB. Overall, the worst-case memory usage is about 4 MB. +/// Lookups and insertions are performed in constant time (O(1)) because the fallback table +/// is accessed via direct indexing and the dictionary employs a simple hash-based bucket mechanism. +/// The design achieves extremely fast color distance lookups with a predictable, fixed memory footprint. +/// +internal unsafe struct HybridCache : IColorIndexCache +{ + private AccurateCache accurateCache; + private CoarseCache coarseCache; + + [RequiresPreviewFeatures] + private HybridCache(MemoryAllocator allocator) + { + this.accurateCache = AccurateCache.Create(allocator); + this.coarseCache = CoarseCache.Create(allocator); + } + + [RequiresPreviewFeatures] + public static HybridCache Create(MemoryAllocator allocator) => new(allocator); + + [MethodImpl(InliningOptions.ShortMethod)] + public bool TryAdd(Rgba32 color, short index) + { + if (this.accurateCache.TryAdd(color, index)) + { + return true; + } + + return this.coarseCache.TryAdd(color, index); + } + + [MethodImpl(InliningOptions.ShortMethod)] + public bool TryGetValue(Rgba32 color, out short value) + { + if (this.accurateCache.TryGetValue(color, out value)) + { + return true; + } + + return this.coarseCache.TryGetValue(color, out value); + } + + public void Clear() + { + this.accurateCache.Clear(); + this.coarseCache.Clear(); + } + + public void Dispose() + { + this.accurateCache.Dispose(); + this.coarseCache.Dispose(); + } +} + +/// +/// A coarse cache for color distance lookups that uses a fixed-size lookup table. +/// +/// +/// This cache uses a fixed lookup table with 2,097,152 bins, each storing a 2-byte value, +/// resulting in a worst-case memory usage of approximately 4 MB. Lookups and insertions are +/// performed in constant time (O(1)) via direct table indexing. This design is optimized for +/// speed while maintaining a predictable, fixed memory footprint. +/// +internal unsafe struct CoarseCache : IColorIndexCache +{ + private const int IndexRBits = 5; + private const int IndexGBits = 5; + private const int IndexBBits = 5; + private const int IndexABits = 6; + private const int IndexRCount = 1 << IndexRBits; // 32 bins for red + private const int IndexGCount = 1 << IndexGBits; // 32 bins for green + private const int IndexBCount = 1 << IndexBBits; // 32 bins for blue + private const int IndexACount = 1 << IndexABits; // 64 bins for alpha + private const int TotalBins = IndexRCount * IndexGCount * IndexBCount * IndexACount; // 2,097,152 bins + + private readonly IMemoryOwner binsOwner; + private readonly short* binsPointer; + private MemoryHandle binsHandle; + + private CoarseCache(MemoryAllocator allocator) + { + this.binsOwner = allocator.Allocate(TotalBins); + this.binsOwner.GetSpan().Fill(-1); + this.binsHandle = this.binsOwner.Memory.Pin(); + this.binsPointer = (short*)this.binsHandle.Pointer; + } + + [RequiresPreviewFeatures] + public static CoarseCache Create(MemoryAllocator allocator) => new(allocator); + + [MethodImpl(InliningOptions.ShortMethod)] + public readonly bool TryAdd(Rgba32 color, short value) + { + this.binsPointer[GetCoarseIndex(color)] = value; + return true; + } + + [MethodImpl(InliningOptions.ShortMethod)] + public readonly bool TryGetValue(Rgba32 color, out short value) + { + value = this.binsPointer[GetCoarseIndex(color)]; + return value > -1; // Coarse match found + } + + [MethodImpl(InliningOptions.ShortMethod)] + private static int GetCoarseIndex(Rgba32 color) + { + int rIndex = color.R >> (8 - IndexRBits); + int gIndex = color.G >> (8 - IndexGBits); + int bIndex = color.B >> (8 - IndexBBits); + int aIndex = color.A >> (8 - IndexABits); + + return (aIndex * IndexRCount * IndexGCount * IndexBCount) + + (rIndex * IndexGCount * IndexBCount) + + (gIndex * IndexBCount) + + bIndex; + } + + public readonly void Clear() + => this.binsOwner.GetSpan().Fill(-1); + + public void Dispose() + { + this.binsHandle.Dispose(); + this.binsOwner.Dispose(); + } +} + +/// +/// A fixed-capacity dictionary with exactly 512 entries mapping a key +/// to a value. +/// +/// +/// The dictionary is implemented using a fixed array of 512 buckets and an entries array +/// of the same size. The bucket for a key is computed as (key & 0x1FF), and collisions are +/// resolved through a linked chain stored in the field. +/// The overall memory usage is approximately 4–5 KB. Both lookup and insertion operations are, +/// on average, O(1) since the bucket is determined via a simple bitmask and collision chains are +/// typically very short; in the worst-case, the number of iterations is bounded by 256. +/// This guarantees highly efficient and predictable performance for small, fixed-size color palettes. +/// +internal unsafe struct AccurateCache : IColorIndexCache +{ + // Buckets array: each bucket holds the index (0-based) into the entries array + // of the first entry in the chain, or -1 if empty. + private readonly IMemoryOwner bucketsOwner; + private MemoryHandle bucketsHandle; + private short* buckets; + + // Entries array: stores up to 256 entries. + private readonly IMemoryOwner entriesOwner; + private MemoryHandle entriesHandle; + private Entry* entries; + + private int count; + + public const int Capacity = 512; + + private AccurateCache(MemoryAllocator allocator) + { + this.count = 0; + + // Allocate exactly 512 ints for buckets. + this.bucketsOwner = allocator.Allocate(Capacity, AllocationOptions.Clean); + Span bucketSpan = this.bucketsOwner.GetSpan(); + bucketSpan.Fill(-1); + this.bucketsHandle = this.bucketsOwner.Memory.Pin(); + this.buckets = (short*)this.bucketsHandle.Pointer; + + // Allocate exactly 512 entries. + this.entriesOwner = allocator.Allocate(Capacity, AllocationOptions.Clean); + this.entriesHandle = this.entriesOwner.Memory.Pin(); + this.entries = (Entry*)this.entriesHandle.Pointer; + } + + [RequiresPreviewFeatures] + public static AccurateCache Create(MemoryAllocator allocator) => new(allocator); + + public bool TryAdd(Rgba32 color, short value) + { + if (this.count == Capacity) + { + return false; // Dictionary is full. + } + + uint key = color.PackedValue; + + // The key is a 32-bit unsigned integer representing an RGBA color, where the bytes are laid out as R|G|B|A + // (with R in the most significant byte and A in the least significant). + // To compute the bucket index: + // 1. (key >> 16) extracts the top 16 bits, effectively giving us the R and G channels. + // 2. (key >> 8) shifts the key right by 8 bits, bringing R, G, and B into the lower 24 bits (dropping A). + // 3. XORing these two values with the original key mixes bits from all four channels (R, G, B, and A), + // which helps to counteract situations where one or more channels have a limited range. + // 4. Finally, we apply a bitmask of 0x1FF to keep only the lowest 9 bits, ensuring the result is between 0 and 511, + // which corresponds to our fixed bucket count of 512. + int bucket = (int)(((key >> 16) ^ (key >> 8) ^ key) & 0x1FF); + int i = this.buckets[bucket]; + + // Traverse the collision chain. + Entry* entries = this.entries; + while (i != -1) + { + Entry e = entries[i]; + if (e.Key == key) + { + // Key already exists; do not overwrite. + return false; + } + + i = e.Next; + } + + short index = (short)this.count; + this.count++; + + // Insert the new entry: + entries[index].Key = key; + entries[index].Value = value; + + // Link this new entry into the bucket chain. + entries[index].Next = this.buckets[bucket]; + this.buckets[bucket] = index; + return true; + } + + public bool TryGetValue(Rgba32 color, out short value) + { + uint key = color.PackedValue; + int bucket = (int)(((key >> 16) ^ (key >> 8) ^ key) & 0x1FF); + int i = this.buckets[bucket]; + + // If the bucket is empty, return immediately. + if (i == -1) + { + value = -1; + return false; + } + + // Traverse the chain. + Entry* entries = this.entries; + do + { + Entry e = entries[i]; + if (e.Key == key) + { + value = e.Value; + return true; + } + + i = e.Next; + } + while (i != -1); + + value = -1; + return false; + } + + /// + /// Clears the dictionary. + /// + public void Clear() + { + Span bucketSpan = this.bucketsOwner.GetSpan(); + bucketSpan.Fill(-1); + this.count = 0; + } + + public void Dispose() + { + this.bucketsHandle.Dispose(); + this.bucketsOwner.Dispose(); + this.entriesHandle.Dispose(); + this.entriesOwner.Dispose(); + this.buckets = null; + this.entries = null; + } + + private struct Entry + { + public uint Key; // The key (packed RGBA) + public short Value; // The value; -1 means unused. + public short Next; // Index of the next entry in the chain, or -1 if none. + } +} + +internal readonly struct NullCache : IColorIndexCache +{ + [RequiresPreviewFeatures] + public static NullCache Create(MemoryAllocator allocator) => default; + + public bool TryAdd(Rgba32 color, short value) => true; + + public bool TryGetValue(Rgba32 color, out short value) + { + value = -1; + return false; + } + + public void Clear() + { + } + + public void Dispose() + { + } +} diff --git a/src/ImageSharp/Processing/Processors/Quantization/OctreeQuantizer{TPixel}.cs b/src/ImageSharp/Processing/Processors/Quantization/OctreeQuantizer{TPixel}.cs index fe422882bc..f510b102c5 100644 --- a/src/ImageSharp/Processing/Processors/Quantization/OctreeQuantizer{TPixel}.cs +++ b/src/ImageSharp/Processing/Processors/Quantization/OctreeQuantizer{TPixel}.cs @@ -28,7 +28,7 @@ public struct OctreeQuantizer : IQuantizer private readonly Octree octree; private readonly IMemoryOwner paletteOwner; private ReadOnlyMemory palette; - private EuclideanPixelMap? pixelMap; + private PixelMap? pixelMap; private readonly bool isDithering; private bool isDisposed; @@ -60,38 +60,43 @@ public OctreeQuantizer(Configuration configuration, QuantizerOptions options) public QuantizerOptions Options { get; } /// - public readonly ReadOnlyMemory Palette + public ReadOnlyMemory Palette { get { - QuantizerUtilities.CheckPaletteState(in this.palette); + if (this.palette.IsEmpty) + { + this.ResolvePalette(); + QuantizerUtilities.CheckPaletteState(in this.palette); + } + return this.palette; } } /// - public void AddPaletteColors(Buffer2DRegion pixelRegion) + public readonly void AddPaletteColors(Buffer2DRegion pixelRegion) { - using (IMemoryOwner buffer = this.Configuration.MemoryAllocator.Allocate(pixelRegion.Width)) + using IMemoryOwner buffer = this.Configuration.MemoryAllocator.Allocate(pixelRegion.Width); + Span bufferSpan = buffer.GetSpan(); + + // Loop through each row + for (int y = 0; y < pixelRegion.Height; y++) { - Span bufferSpan = buffer.GetSpan(); + Span row = pixelRegion.DangerousGetRowSpan(y); + PixelOperations.Instance.ToRgba32(this.Configuration, row, bufferSpan); - // Loop through each row - for (int y = 0; y < pixelRegion.Height; y++) + for (int x = 0; x < bufferSpan.Length; x++) { - Span row = pixelRegion.DangerousGetRowSpan(y); - PixelOperations.Instance.ToRgba32(this.Configuration, row, bufferSpan); - - for (int x = 0; x < bufferSpan.Length; x++) - { - Rgba32 rgba = bufferSpan[x]; - - // Add the color to the Octree - this.octree.AddColor(rgba); - } + // Add the color to the Octree + this.octree.AddColor(bufferSpan[x]); } } + } + [MemberNotNull(nameof(pixelMap))] + private void ResolvePalette() + { int paletteIndex = 0; Span paletteSpan = this.paletteOwner.GetSpan(); @@ -109,17 +114,7 @@ public void AddPaletteColors(Buffer2DRegion pixelRegion) this.octree.Palletize(paletteSpan, max, ref paletteIndex); ReadOnlyMemory result = this.paletteOwner.Memory[..paletteSpan.Length]; - // When called multiple times by QuantizerUtilities.BuildPalette - // this prevents memory churn caused by reallocation. - if (this.pixelMap is null) - { - this.pixelMap = new EuclideanPixelMap(this.Configuration, result); - } - else - { - this.pixelMap.Clear(result); - } - + this.pixelMap = PixelMapFactory.Create(this.Configuration, result, this.Options.ColorMatchingMode); this.palette = result; } diff --git a/src/ImageSharp/Processing/Processors/Quantization/PaletteQuantizer{TPixel}.cs b/src/ImageSharp/Processing/Processors/Quantization/PaletteQuantizer{TPixel}.cs index 3df80ea9b7..e6984ec98a 100644 --- a/src/ImageSharp/Processing/Processors/Quantization/PaletteQuantizer{TPixel}.cs +++ b/src/ImageSharp/Processing/Processors/Quantization/PaletteQuantizer{TPixel}.cs @@ -20,7 +20,7 @@ namespace SixLabors.ImageSharp.Processing.Processors.Quantization; internal readonly struct PaletteQuantizer : IQuantizer where TPixel : unmanaged, IPixel { - private readonly EuclideanPixelMap pixelMap; + private readonly PixelMap pixelMap; /// /// Initializes a new instance of the struct. @@ -41,7 +41,7 @@ public PaletteQuantizer( this.Configuration = configuration; this.Options = options; - this.pixelMap = new EuclideanPixelMap(configuration, palette, transparentIndex); + this.pixelMap = PixelMapFactory.Create(configuration, palette, options.ColorMatchingMode, transparentIndex); } /// diff --git a/src/ImageSharp/Processing/Processors/Quantization/QuantizerOptions.cs b/src/ImageSharp/Processing/Processors/Quantization/QuantizerOptions.cs index a6bb265a81..da64b26d66 100644 --- a/src/ImageSharp/Processing/Processors/Quantization/QuantizerOptions.cs +++ b/src/ImageSharp/Processing/Processors/Quantization/QuantizerOptions.cs @@ -38,4 +38,10 @@ public int MaxColors get => this.maxColors; set => this.maxColors = Numerics.Clamp(value, QuantizerConstants.MinColors, QuantizerConstants.MaxColors); } + + /// + /// Gets or sets the color matching mode used for matching pixel values to palette colors. + /// Defaults to . + /// + public ColorMatchingMode ColorMatchingMode { get; set; } = ColorMatchingMode.Coarse; } diff --git a/src/ImageSharp/Processing/Processors/Quantization/WuQuantizer{TPixel}.cs b/src/ImageSharp/Processing/Processors/Quantization/WuQuantizer{TPixel}.cs index f6928c3dd4..5eebb5b6de 100644 --- a/src/ImageSharp/Processing/Processors/Quantization/WuQuantizer{TPixel}.cs +++ b/src/ImageSharp/Processing/Processors/Quantization/WuQuantizer{TPixel}.cs @@ -75,7 +75,7 @@ internal struct WuQuantizer : IQuantizer private ReadOnlyMemory palette; private int maxColors; private readonly Box[] colorCube; - private EuclideanPixelMap? pixelMap; + private PixelMap? pixelMap; private readonly bool isDithering; private bool isDisposed; @@ -111,35 +111,43 @@ public WuQuantizer(Configuration configuration, QuantizerOptions options) public QuantizerOptions Options { get; } /// - public readonly ReadOnlyMemory Palette + public ReadOnlyMemory Palette { get { - QuantizerUtilities.CheckPaletteState(in this.palette); + if (this.palette.IsEmpty) + { + this.ResolvePalette(); + QuantizerUtilities.CheckPaletteState(in this.palette); + } + return this.palette; } } /// - public void AddPaletteColors(Buffer2DRegion pixelRegion) + public readonly void AddPaletteColors(Buffer2DRegion pixelRegion) + => this.Build3DHistogram(pixelRegion); + + /// + /// Once all histogram data has been accumulated, this method computes the moments, + /// splits the color cube, and resolves the final palette from the accumulated histogram. + /// + private void ResolvePalette() { - // TODO: Something is destroying the existing palette when adding new colors. - // When the QuantizingImageEncoder.PixelSamplingStrategy is DefaultPixelSamplingStrategy - // this leads to performance issues + the palette is not preserved. - // https://github.com/SixLabors/ImageSharp/issues/2498 - this.Build3DHistogram(pixelRegion); + // Calculate the cumulative moments from the accumulated histogram. this.Get3DMoments(this.memoryAllocator); + + // Partition the histogram into color cubes. this.BuildCube(); - // Slice again since maxColors has been updated since the buffer was created. + // Compute the palette colors from the resolved cubes. Span paletteSpan = this.paletteOwner.GetSpan()[..this.maxColors]; ReadOnlySpan momentsSpan = this.momentsOwner.GetSpan(); for (int k = 0; k < paletteSpan.Length; k++) { this.Mark(ref this.colorCube[k], (byte)k); - Moment moment = Volume(ref this.colorCube[k], momentsSpan); - if (moment.Weight > 0) { ref TPixel color = ref paletteSpan[k]; @@ -147,22 +155,14 @@ public void AddPaletteColors(Buffer2DRegion pixelRegion) } } - ReadOnlyMemory result = this.paletteOwner.Memory[..paletteSpan.Length]; - if (this.isDithering) + // Update the palette to the new computed colors. + this.palette = this.paletteOwner.Memory[..paletteSpan.Length]; + + // Create the pixel map if dithering is enabled. + if (this.isDithering && this.pixelMap is null) { - // When called multiple times by QuantizerUtilities.BuildPalette - // this prevents memory churn caused by reallocation. - if (this.pixelMap is null) - { - this.pixelMap = new EuclideanPixelMap(this.Configuration, result); - } - else - { - this.pixelMap.Clear(result); - } + this.pixelMap = PixelMapFactory.Create(this.Configuration, this.palette, this.Options.ColorMatchingMode); } - - this.palette = result; } /// @@ -549,7 +549,7 @@ private readonly float Maximize(ref Box cube, int direction, int first, int last /// The first set. /// The second set. /// Returns a value indicating whether the box has been split. - private bool Cut(ref Box set1, ref Box set2) + private readonly bool Cut(ref Box set1, ref Box set2) { ReadOnlySpan momentSpan = this.momentsOwner.GetSpan(); Moment whole = Volume(ref set1, momentSpan); diff --git a/src/ImageSharp/Processing/Processors/Transforms/Linear/LinearTransformUtility.cs b/src/ImageSharp/Processing/Processors/Transforms/Linear/LinearTransformUtility.cs index b5eb202c18..1f68e32744 100644 --- a/src/ImageSharp/Processing/Processors/Transforms/Linear/LinearTransformUtility.cs +++ b/src/ImageSharp/Processing/Processors/Transforms/Linear/LinearTransformUtility.cs @@ -43,7 +43,7 @@ public static float GetSamplingRadius(in TResampler sampler, int sou /// The . [MethodImpl(InliningOptions.ShortMethod)] public static int GetRangeStart(float radius, float center, int min, int max) - => Numerics.Clamp((int)MathF.Ceiling(center - radius), min, max); + => Numerics.Clamp((int)MathF.Floor(center - radius), min, max); /// /// Gets the end position (inclusive) for a sampling range given @@ -56,5 +56,5 @@ public static int GetRangeStart(float radius, float center, int min, int max) /// The . [MethodImpl(InliningOptions.ShortMethod)] public static int GetRangeEnd(float radius, float center, int min, int max) - => Numerics.Clamp((int)MathF.Floor(center + radius), min, max); + => Numerics.Clamp((int)MathF.Ceiling(center + radius), min, max); } diff --git a/src/ImageSharp/Processing/Processors/Transforms/Linear/RotateProcessor.cs b/src/ImageSharp/Processing/Processors/Transforms/Linear/RotateProcessor.cs index 6580636a24..0af2b268a1 100644 --- a/src/ImageSharp/Processing/Processors/Transforms/Linear/RotateProcessor.cs +++ b/src/ImageSharp/Processing/Processors/Transforms/Linear/RotateProcessor.cs @@ -28,15 +28,14 @@ public RotateProcessor(float degrees, Size sourceSize) /// The source image size public RotateProcessor(float degrees, IResampler sampler, Size sourceSize) : this( - TransformUtils.CreateRotationTransformMatrixDegrees(degrees, sourceSize), - TransformUtils.CreateRotationBoundsMatrixDegrees(degrees, sourceSize), + TransformUtils.CreateRotationTransformMatrixDegrees(degrees, sourceSize, TransformSpace.Pixel), sampler, sourceSize) => this.Degrees = degrees; // Helper constructor - private RotateProcessor(Matrix3x2 rotationMatrix, Matrix3x2 boundsMatrix, IResampler sampler, Size sourceSize) - : base(rotationMatrix, sampler, TransformUtils.GetTransformedSize(sourceSize, boundsMatrix)) + private RotateProcessor(Matrix3x2 rotationMatrix, IResampler sampler, Size sourceSize) + : base(rotationMatrix, sampler, TransformUtils.GetTransformedSize(rotationMatrix, sourceSize, TransformSpace.Pixel)) { } diff --git a/src/ImageSharp/Processing/Processors/Transforms/Linear/SkewProcessor.cs b/src/ImageSharp/Processing/Processors/Transforms/Linear/SkewProcessor.cs index 97b18de6c8..0bbc8e0f60 100644 --- a/src/ImageSharp/Processing/Processors/Transforms/Linear/SkewProcessor.cs +++ b/src/ImageSharp/Processing/Processors/Transforms/Linear/SkewProcessor.cs @@ -30,8 +30,7 @@ public SkewProcessor(float degreesX, float degreesY, Size sourceSize) /// The source image size public SkewProcessor(float degreesX, float degreesY, IResampler sampler, Size sourceSize) : this( - TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, sourceSize), - TransformUtils.CreateSkewBoundsMatrixDegrees(degreesX, degreesY, sourceSize), + TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, sourceSize, TransformSpace.Pixel), sampler, sourceSize) { @@ -40,8 +39,8 @@ public SkewProcessor(float degreesX, float degreesY, IResampler sampler, Size so } // Helper constructor: - private SkewProcessor(Matrix3x2 skewMatrix, Matrix3x2 boundsMatrix, IResampler sampler, Size sourceSize) - : base(skewMatrix, sampler, TransformUtils.GetTransformedSize(sourceSize, boundsMatrix)) + private SkewProcessor(Matrix3x2 skewMatrix, IResampler sampler, Size sourceSize) + : base(skewMatrix, sampler, TransformUtils.GetTransformedSize(skewMatrix, sourceSize, TransformSpace.Pixel)) { } diff --git a/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs b/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs index 70112ab5a8..62ea5e830d 100644 --- a/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs +++ b/src/ImageSharp/Processing/Processors/Transforms/TransformUtils.cs @@ -68,6 +68,11 @@ public static bool IsNaN(Matrix4x4 matrix) [MethodImpl(MethodImplOptions.AggressiveInlining)] public static Vector2 ProjectiveTransform2D(float x, float y, Matrix4x4 matrix) { + // The w component (v4.W) resulting from the transformation can be less than 0 in certain cases, + // such as when the point is transformed behind the camera in a perspective projection. + // However, in many 2D contexts, negative w values are not meaningful and could cause issues + // like flipped or distorted projections. To avoid this, we take the max of w and epsilon to ensure + // we don't divide by a very small or negative number, effectively treating any negative w as epsilon. const float epsilon = 0.0000001F; Vector4 v4 = Vector4.Transform(new Vector4(x, y, 0, 1F), matrix); return new Vector2(v4.X, v4.Y) / MathF.Max(v4.W, epsilon); @@ -78,48 +83,22 @@ public static Vector2 ProjectiveTransform2D(float x, float y, Matrix4x4 matrix) /// /// The amount of rotation, in degrees. /// The source image size. + /// The to use when creating the centered matrix. /// The . [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateRotationTransformMatrixDegrees(float degrees, Size size) - => CreateCenteredTransformMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateRotationDegrees(degrees, PointF.Empty)); + public static Matrix3x2 CreateRotationTransformMatrixDegrees(float degrees, Size size, TransformSpace transformSpace) + => CreateRotationTransformMatrixRadians(GeometryUtilities.DegreeToRadian(degrees), size, transformSpace); /// /// Creates a centered rotation transform matrix using the given rotation in radians and the source size. /// /// The amount of rotation, in radians. /// The source image size. + /// The to use when creating the centered matrix. /// The . [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateRotationTransformMatrixRadians(float radians, Size size) - => CreateCenteredTransformMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateRotation(radians, PointF.Empty)); - - /// - /// Creates a centered rotation bounds matrix using the given rotation in degrees and the source size. - /// - /// The amount of rotation, in degrees. - /// The source image size. - /// The . - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateRotationBoundsMatrixDegrees(float degrees, Size size) - => CreateCenteredBoundsMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateRotationDegrees(degrees, PointF.Empty)); - - /// - /// Creates a centered rotation bounds matrix using the given rotation in radians and the source size. - /// - /// The amount of rotation, in radians. - /// The source image size. - /// The . - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateRotationBoundsMatrixRadians(float radians, Size size) - => CreateCenteredBoundsMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateRotation(radians, PointF.Empty)); + public static Matrix3x2 CreateRotationTransformMatrixRadians(float radians, Size size, TransformSpace transformSpace) + => CreateCenteredTransformMatrix(Matrix3x2Extensions.CreateRotation(radians, PointF.Empty), size, transformSpace); /// /// Creates a centered skew transform matrix from the give angles in degrees and the source size. @@ -127,12 +106,11 @@ public static Matrix3x2 CreateRotationBoundsMatrixRadians(float radians, Size si /// The X angle, in degrees. /// The Y angle, in degrees. /// The source image size. + /// The to use when creating the centered matrix. /// The . [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateSkewTransformMatrixDegrees(float degreesX, float degreesY, Size size) - => CreateCenteredTransformMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateSkewDegrees(degreesX, degreesY, PointF.Empty)); + public static Matrix3x2 CreateSkewTransformMatrixDegrees(float degreesX, float degreesY, Size size, TransformSpace transformSpace) + => CreateSkewTransformMatrixRadians(GeometryUtilities.DegreeToRadian(degreesX), GeometryUtilities.DegreeToRadian(degreesY), size, transformSpace); /// /// Creates a centered skew transform matrix from the give angles in radians and the source size. @@ -140,81 +118,37 @@ public static Matrix3x2 CreateSkewTransformMatrixDegrees(float degreesX, float d /// The X angle, in radians. /// The Y angle, in radians. /// The source image size. + /// The to use when creating the centered matrix. /// The . [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateSkewTransformMatrixRadians(float radiansX, float radiansY, Size size) - => CreateCenteredTransformMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateSkew(radiansX, radiansY, PointF.Empty)); - - /// - /// Creates a centered skew bounds matrix from the give angles in degrees and the source size. - /// - /// The X angle, in degrees. - /// The Y angle, in degrees. - /// The source image size. - /// The . - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateSkewBoundsMatrixDegrees(float degreesX, float degreesY, Size size) - => CreateCenteredBoundsMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateSkewDegrees(degreesX, degreesY, PointF.Empty)); - - /// - /// Creates a centered skew bounds matrix from the give angles in radians and the source size. - /// - /// The X angle, in radians. - /// The Y angle, in radians. - /// The source image size. - /// The . - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateSkewBoundsMatrixRadians(float radiansX, float radiansY, Size size) - => CreateCenteredBoundsMatrix( - new Rectangle(Point.Empty, size), - Matrix3x2Extensions.CreateSkew(radiansX, radiansY, PointF.Empty)); + public static Matrix3x2 CreateSkewTransformMatrixRadians(float radiansX, float radiansY, Size size, TransformSpace transformSpace) + => CreateCenteredTransformMatrix(Matrix3x2Extensions.CreateSkew(radiansX, radiansY, PointF.Empty), size, transformSpace); /// /// Gets the centered transform matrix based upon the source rectangle. /// - /// The source image bounds. /// The transformation matrix. + /// The source image size. + /// + /// The to use when creating the centered matrix. + /// /// The [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateCenteredTransformMatrix(Rectangle sourceRectangle, Matrix3x2 matrix) + public static Matrix3x2 CreateCenteredTransformMatrix(Matrix3x2 matrix, Size size, TransformSpace transformSpace) { - Rectangle destinationRectangle = GetTransformedBoundingRectangle(sourceRectangle, matrix); + Size transformSize = GetUnboundedTransformedSize(matrix, size, transformSpace); // We invert the matrix to handle the transformation from screen to world space. // This ensures scaling matrices are correct. Matrix3x2.Invert(matrix, out Matrix3x2 inverted); - // Centered transforms must be 0 based so we offset the bounds width and height. - Matrix3x2 translationToTargetCenter = Matrix3x2.CreateTranslation(new Vector2(-(destinationRectangle.Width - 1), -(destinationRectangle.Height - 1)) * .5F); - Matrix3x2 translateToSourceCenter = Matrix3x2.CreateTranslation(new Vector2(sourceRectangle.Width - 1, sourceRectangle.Height - 1) * .5F); - - // Translate back to world space. - Matrix3x2.Invert(translationToTargetCenter * inverted * translateToSourceCenter, out Matrix3x2 centered); + // The source size is provided using the coordinate space of the source image. + // however the transform should always be applied in the pixel space. + // To account for this we offset by the size - 1 to translate to the pixel space. + float offset = transformSpace == TransformSpace.Pixel ? 1F : 0F; - return centered; - } - - /// - /// Gets the centered bounds matrix based upon the source rectangle. - /// - /// The source image bounds. - /// The transformation matrix. - /// The - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Matrix3x2 CreateCenteredBoundsMatrix(Rectangle sourceRectangle, Matrix3x2 matrix) - { - Rectangle destinationRectangle = GetTransformedBoundingRectangle(sourceRectangle, matrix); - - // We invert the matrix to handle the transformation from screen to world space. - // This ensures scaling matrices are correct. - Matrix3x2.Invert(matrix, out Matrix3x2 inverted); - - Matrix3x2 translationToTargetCenter = Matrix3x2.CreateTranslation(new Vector2(-destinationRectangle.Width, -destinationRectangle.Height) * .5F); - Matrix3x2 translateToSourceCenter = Matrix3x2.CreateTranslation(new Vector2(sourceRectangle.Width, sourceRectangle.Height) * .5F); + Matrix3x2 translationToTargetCenter = Matrix3x2.CreateTranslation(new Vector2(-(transformSize.Width - offset), -(transformSize.Height - offset)) * .5F); + Matrix3x2 translateToSourceCenter = Matrix3x2.CreateTranslation(new Vector2(size.Width - offset, size.Height - offset) * .5F); // Translate back to world space. Matrix3x2.Invert(translationToTargetCenter * inverted * translateToSourceCenter, out Matrix3x2 centered); @@ -345,52 +279,100 @@ public static Matrix4x4 CreateTaperMatrix(Size size, TaperSide side, TaperCorner } /// - /// Returns the rectangle bounds relative to the source for the given transformation matrix. + /// Returns the size relative to the source for the given transformation matrix. /// - /// The source rectangle. /// The transformation matrix. - /// - /// The . - /// - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Rectangle GetTransformedBoundingRectangle(Rectangle rectangle, Matrix3x2 matrix) - { - Rectangle transformed = GetTransformedRectangle(rectangle, matrix); - return new Rectangle(0, 0, transformed.Width, transformed.Height); - } + /// The source size. + /// The to use when calculating the size. + /// The . + public static Size GetTransformedSize(Matrix3x2 matrix, Size size, TransformSpace transformSpace) + => GetTransformedSize(matrix, size, transformSpace, true); /// - /// Returns the rectangle relative to the source for the given transformation matrix. + /// Returns the size relative to the source for the given transformation matrix. /// - /// The source rectangle. /// The transformation matrix. + /// The source size. /// - /// The . + /// The . /// - public static Rectangle GetTransformedRectangle(Rectangle rectangle, Matrix3x2 matrix) + [MethodImpl(MethodImplOptions.AggressiveInlining)] + public static Size GetTransformedSize(Matrix4x4 matrix, Size size) { - if (rectangle.Equals(default) || Matrix3x2.Identity.Equals(matrix)) + Guard.IsTrue(size.Width > 0 && size.Height > 0, nameof(size), "Source size dimensions cannot be 0!"); + + if (matrix.Equals(default) || matrix.Equals(Matrix4x4.Identity)) { - return rectangle; + return size; } - Vector2 tl = Vector2.Transform(new Vector2(rectangle.Left, rectangle.Top), matrix); - Vector2 tr = Vector2.Transform(new Vector2(rectangle.Right, rectangle.Top), matrix); - Vector2 bl = Vector2.Transform(new Vector2(rectangle.Left, rectangle.Bottom), matrix); - Vector2 br = Vector2.Transform(new Vector2(rectangle.Right, rectangle.Bottom), matrix); + // Check if the matrix involves only affine transformations by inspecting the relevant components. + // We want to use pixel space for calculations only if the transformation is purely 2D and does not include + // any perspective effects, non-standard scaling, or unusual translations that could distort the image. + // The conditions are as follows: + bool usePixelSpace = + + // 1. Ensure there's no perspective distortion: + // M34 corresponds to the perspective component. For a purely 2D affine transformation, this should be 0. + (matrix.M34 == 0) && + + // 2. Ensure standard affine transformation without any unusual depth or perspective scaling: + // M44 should be 1 for a standard affine transformation. If M44 is not 1, it indicates non-standard depth + // scaling or perspective, which suggests a more complex transformation. + (matrix.M44 == 1) && + + // 3. Ensure no unusual translation in the x-direction: + // M14 represents translation in the x-direction that might be part of a more complex transformation. + // For standard affine transformations, M14 should be 0. + (matrix.M14 == 0) && - return GetBoundingRectangle(tl, tr, bl, br); + // 4. Ensure no unusual translation in the y-direction: + // M24 represents translation in the y-direction that might be part of a more complex transformation. + // For standard affine transformations, M24 should be 0. + (matrix.M24 == 0); + + // Define an offset size to translate between pixel space and coordinate space. + // When using pixel space, apply a scaling sensitive offset to translate to discrete pixel coordinates. + // When not using pixel space, use SizeF.Empty as the offset. + + // Compute scaling factors from the matrix + float scaleX = 1F / new Vector2(matrix.M11, matrix.M21).Length(); // sqrt(M11^2 + M21^2) + float scaleY = 1F / new Vector2(matrix.M12, matrix.M22).Length(); // sqrt(M12^2 + M22^2) + + // Apply the offset relative to the scale + SizeF offsetSize = usePixelSpace ? new SizeF(scaleX, scaleY) : SizeF.Empty; + + // Subtract the offset size to translate to the appropriate space (pixel or coordinate). + if (TryGetTransformedRectangle(new RectangleF(Point.Empty, size - offsetSize), matrix, out Rectangle bounds)) + { + // Add the offset size back to translate the transformed bounds to the correct space. + return Size.Ceiling(ConstrainSize(bounds) + offsetSize); + } + + return size; } /// /// Returns the size relative to the source for the given transformation matrix. /// + /// The transformation matrix. /// The source size. + /// The to use when calculating the size. + /// The . + private static Size GetUnboundedTransformedSize(Matrix3x2 matrix, Size size, TransformSpace transformSpace) + => GetTransformedSize(matrix, size, transformSpace, false); + + /// + /// Returns the size relative to the source for the given transformation matrix. + /// /// The transformation matrix. + /// The source size. + /// The to use when calculating the size. + /// Whether to constrain the size to ensure that the dimensions are positive. /// /// The . /// - public static Size GetTransformedSize(Size size, Matrix3x2 matrix) + private static Size GetTransformedSize(Matrix3x2 matrix, Size size, TransformSpace transformSpace, bool constrain) { Guard.IsTrue(size.Width > 0 && size.Height > 0, nameof(size), "Source size dimensions cannot be 0!"); @@ -399,9 +381,24 @@ public static Size GetTransformedSize(Size size, Matrix3x2 matrix) return size; } - Rectangle rectangle = GetTransformedRectangle(new Rectangle(Point.Empty, size), matrix); + // Define an offset size to translate between coordinate space and pixel space. + // Compute scaling factors from the matrix + SizeF offsetSize = SizeF.Empty; + if (transformSpace == TransformSpace.Pixel) + { + float scaleX = 1F / new Vector2(matrix.M11, matrix.M21).Length(); // sqrt(M11^2 + M21^2) + float scaleY = 1F / new Vector2(matrix.M12, matrix.M22).Length(); // sqrt(M12^2 + M22^2) + offsetSize = new(scaleX, scaleY); + } + + // Subtract the offset size to translate to the pixel space. + if (TryGetTransformedRectangle(new RectangleF(Point.Empty, size - offsetSize), matrix, out Rectangle bounds)) + { + // Add the offset size back to translate the transformed bounds to the coordinate space. + return Size.Ceiling((constrain ? ConstrainSize(bounds) : bounds.Size) + offsetSize); + } - return ConstrainSize(rectangle); + return size; } /// @@ -409,46 +406,52 @@ public static Size GetTransformedSize(Size size, Matrix3x2 matrix) /// /// The source rectangle. /// The transformation matrix. + /// The resulting bounding rectangle. /// - /// The . + /// if the transformation was successful; otherwise, . /// - [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Rectangle GetTransformedRectangle(Rectangle rectangle, Matrix4x4 matrix) + private static bool TryGetTransformedRectangle(RectangleF rectangle, Matrix3x2 matrix, out Rectangle bounds) { - if (rectangle.Equals(default) || Matrix4x4.Identity.Equals(matrix)) + if (rectangle.Equals(default) || Matrix3x2.Identity.Equals(matrix)) { - return rectangle; + bounds = default; + return false; } - Vector2 tl = ProjectiveTransform2D(rectangle.Left, rectangle.Top, matrix); - Vector2 tr = ProjectiveTransform2D(rectangle.Right, rectangle.Top, matrix); - Vector2 bl = ProjectiveTransform2D(rectangle.Left, rectangle.Bottom, matrix); - Vector2 br = ProjectiveTransform2D(rectangle.Right, rectangle.Bottom, matrix); + Vector2 tl = Vector2.Transform(new Vector2(rectangle.Left, rectangle.Top), matrix); + Vector2 tr = Vector2.Transform(new Vector2(rectangle.Right, rectangle.Top), matrix); + Vector2 bl = Vector2.Transform(new Vector2(rectangle.Left, rectangle.Bottom), matrix); + Vector2 br = Vector2.Transform(new Vector2(rectangle.Right, rectangle.Bottom), matrix); - return GetBoundingRectangle(tl, tr, bl, br); + bounds = GetBoundingRectangle(tl, tr, bl, br); + return true; } /// - /// Returns the size relative to the source for the given transformation matrix. + /// Returns the rectangle relative to the source for the given transformation matrix. /// - /// The source size. + /// The source rectangle. /// The transformation matrix. + /// The resulting bounding rectangle. /// - /// The . + /// if the transformation was successful; otherwise, . /// [MethodImpl(MethodImplOptions.AggressiveInlining)] - public static Size GetTransformedSize(Size size, Matrix4x4 matrix) + private static bool TryGetTransformedRectangle(RectangleF rectangle, Matrix4x4 matrix, out Rectangle bounds) { - Guard.IsTrue(size.Width > 0 && size.Height > 0, nameof(size), "Source size dimensions cannot be 0!"); - - if (matrix.Equals(default) || matrix.Equals(Matrix4x4.Identity)) + if (rectangle.Equals(default) || Matrix4x4.Identity.Equals(matrix)) { - return size; + bounds = default; + return false; } - Rectangle rectangle = GetTransformedRectangle(new Rectangle(Point.Empty, size), matrix); + Vector2 tl = ProjectiveTransform2D(rectangle.Left, rectangle.Top, matrix); + Vector2 tr = ProjectiveTransform2D(rectangle.Right, rectangle.Top, matrix); + Vector2 bl = ProjectiveTransform2D(rectangle.Left, rectangle.Bottom, matrix); + Vector2 br = ProjectiveTransform2D(rectangle.Right, rectangle.Bottom, matrix); - return ConstrainSize(rectangle); + bounds = GetBoundingRectangle(tl, tr, bl, br); + return true; } [MethodImpl(MethodImplOptions.AggressiveInlining)] @@ -482,6 +485,11 @@ private static Rectangle GetBoundingRectangle(Vector2 tl, Vector2 tr, Vector2 bl float right = MathF.Max(tl.X, MathF.Max(tr.X, MathF.Max(bl.X, br.X))); float bottom = MathF.Max(tl.Y, MathF.Max(tr.Y, MathF.Max(bl.Y, br.Y))); - return Rectangle.Round(RectangleF.FromLTRB(left, top, right, bottom)); + // Clamp the values to the nearest whole pixel. + return Rectangle.FromLTRB( + (int)Math.Floor(left), + (int)Math.Floor(top), + (int)Math.Ceiling(right), + (int)Math.Ceiling(bottom)); } } diff --git a/src/ImageSharp/Processing/ProjectiveTransformBuilder.cs b/src/ImageSharp/Processing/ProjectiveTransformBuilder.cs index 0387adebb9..9027ee7266 100644 --- a/src/ImageSharp/Processing/ProjectiveTransformBuilder.cs +++ b/src/ImageSharp/Processing/ProjectiveTransformBuilder.cs @@ -12,7 +12,28 @@ namespace SixLabors.ImageSharp.Processing; public class ProjectiveTransformBuilder { private readonly List> transformMatrixFactories = new(); - private readonly List> boundsMatrixFactories = new(); + + /// + /// Initializes a new instance of the class. + /// + public ProjectiveTransformBuilder() + : this(TransformSpace.Pixel) + { + } + + /// + /// Initializes a new instance of the class. + /// + /// + /// The to use when applying the projective transform. + /// + public ProjectiveTransformBuilder(TransformSpace transformSpace) + => this.TransformSpace = transformSpace; + + /// + /// Gets the to use when applying the projective transform. + /// + public TransformSpace TransformSpace { get; } /// /// Prepends a matrix that performs a tapering projective transform. @@ -22,9 +43,7 @@ public class ProjectiveTransformBuilder /// The amount to taper. /// The . public ProjectiveTransformBuilder PrependTaper(TaperSide side, TaperCorner corner, float fraction) - => this.Prepend( - size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction), - size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction)); + => this.Prepend(size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction)); /// /// Appends a matrix that performs a tapering projective transform. @@ -34,9 +53,7 @@ public ProjectiveTransformBuilder PrependTaper(TaperSide side, TaperCorner corne /// The amount to taper. /// The . public ProjectiveTransformBuilder AppendTaper(TaperSide side, TaperCorner corner, float fraction) - => this.Append( - size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction), - size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction)); + => this.Append(size => TransformUtils.CreateTaperMatrix(size, side, corner, fraction)); /// /// Prepends a centered rotation matrix using the given rotation in degrees. @@ -52,9 +69,7 @@ public ProjectiveTransformBuilder PrependRotationDegrees(float degrees) /// The amount of rotation, in radians. /// The . public ProjectiveTransformBuilder PrependRotationRadians(float radians) - => this.Prepend( - size => new Matrix4x4(TransformUtils.CreateRotationTransformMatrixRadians(radians, size)), - size => new Matrix4x4(TransformUtils.CreateRotationBoundsMatrixRadians(radians, size))); + => this.Prepend(size => new Matrix4x4(TransformUtils.CreateRotationTransformMatrixRadians(radians, size, this.TransformSpace))); /// /// Prepends a centered rotation matrix using the given rotation in degrees at the given origin. @@ -88,9 +103,7 @@ public ProjectiveTransformBuilder AppendRotationDegrees(float degrees) /// The amount of rotation, in radians. /// The . public ProjectiveTransformBuilder AppendRotationRadians(float radians) - => this.Append( - size => new Matrix4x4(TransformUtils.CreateRotationTransformMatrixRadians(radians, size)), - size => new Matrix4x4(TransformUtils.CreateRotationBoundsMatrixRadians(radians, size))); + => this.Append(size => new Matrix4x4(TransformUtils.CreateRotationTransformMatrixRadians(radians, size, this.TransformSpace))); /// /// Appends a centered rotation matrix using the given rotation in degrees at the given origin. @@ -174,9 +187,7 @@ internal ProjectiveTransformBuilder PrependSkewDegrees(float degreesX, float deg /// The Y angle, in radians. /// The . public ProjectiveTransformBuilder PrependSkewRadians(float radiansX, float radiansY) - => this.Prepend( - size => new Matrix4x4(TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size)), - size => new Matrix4x4(TransformUtils.CreateSkewBoundsMatrixRadians(radiansX, radiansY, size))); + => this.Prepend(size => new Matrix4x4(TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size, this.TransformSpace))); /// /// Prepends a skew matrix using the given angles in degrees at the given origin. @@ -214,9 +225,7 @@ internal ProjectiveTransformBuilder AppendSkewDegrees(float degreesX, float degr /// The Y angle, in radians. /// The . public ProjectiveTransformBuilder AppendSkewRadians(float radiansX, float radiansY) - => this.Append( - size => new Matrix4x4(TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size)), - size => new Matrix4x4(TransformUtils.CreateSkewBoundsMatrixRadians(radiansX, radiansY, size))); + => this.Append(size => new Matrix4x4(TransformUtils.CreateSkewTransformMatrixRadians(radiansX, radiansY, size, this.TransformSpace))); /// /// Appends a skew matrix using the given angles in degrees at the given origin. @@ -283,7 +292,7 @@ public ProjectiveTransformBuilder AppendTranslation(Vector2 position) public ProjectiveTransformBuilder PrependMatrix(Matrix4x4 matrix) { CheckDegenerate(matrix); - return this.Prepend(_ => matrix, _ => matrix); + return this.Prepend(_ => matrix); } /// @@ -299,7 +308,7 @@ public ProjectiveTransformBuilder PrependMatrix(Matrix4x4 matrix) public ProjectiveTransformBuilder AppendMatrix(Matrix4x4 matrix) { CheckDegenerate(matrix); - return this.Append(_ => matrix, _ => matrix); + return this.Append(_ => matrix); } /// @@ -357,13 +366,13 @@ public Size GetTransformedSize(Rectangle sourceRectangle) // Translate the origin matrix to cater for source rectangle offsets. Matrix4x4 matrix = Matrix4x4.CreateTranslation(new Vector3(-sourceRectangle.Location, 0)); - foreach (Func factory in this.boundsMatrixFactories) + foreach (Func factory in this.transformMatrixFactories) { matrix *= factory(size); CheckDegenerate(matrix); } - return TransformUtils.GetTransformedSize(size, matrix); + return TransformUtils.GetTransformedSize(matrix, size); } private static void CheckDegenerate(Matrix4x4 matrix) @@ -374,17 +383,15 @@ private static void CheckDegenerate(Matrix4x4 matrix) } } - private ProjectiveTransformBuilder Prepend(Func transformFactory, Func boundsFactory) + private ProjectiveTransformBuilder Prepend(Func transformFactory) { this.transformMatrixFactories.Insert(0, transformFactory); - this.boundsMatrixFactories.Insert(0, boundsFactory); return this; } - private ProjectiveTransformBuilder Append(Func transformFactory, Func boundsFactory) + private ProjectiveTransformBuilder Append(Func transformFactory) { this.transformMatrixFactories.Add(transformFactory); - this.boundsMatrixFactories.Add(boundsFactory); return this; } } diff --git a/src/ImageSharp/Processing/TransformSpace.cs b/src/ImageSharp/Processing/TransformSpace.cs new file mode 100644 index 0000000000..bca676bd88 --- /dev/null +++ b/src/ImageSharp/Processing/TransformSpace.cs @@ -0,0 +1,26 @@ +// Copyright (c) Six Labors. +// Licensed under the Six Labors Split License. + +namespace SixLabors.ImageSharp.Processing; + +/// +/// Represents the different spaces used in transformation operations. +/// +public enum TransformSpace +{ + /// + /// Coordinate space is a continuous, mathematical grid where objects and positions + /// are defined with precise, often fractional values. This space allows for fine-grained + /// transformations like scaling, rotation, and translation with high precision. + /// In coordinate space, an image can span from (0,0) to (4,4) for a 4x4 image, including the boundaries. + /// + Coordinate, + + /// + /// Pixel space is a discrete grid where each position corresponds to a specific pixel on the screen. + /// In this space, positions are defined by whole numbers, with no fractional values. + /// A 4x4 image in pixel space covers exactly 4 pixels wide and 4 pixels tall, ranging from (0,0) to (3,3). + /// Pixel space is used when rendering images to ensure that everything aligns with the actual pixels on the screen. + /// + Pixel +} diff --git a/src/ImageSharp/Properties/AssemblyInfo.cs b/src/ImageSharp/Properties/AssemblyInfo.cs deleted file mode 100644 index 334737ac17..0000000000 --- a/src/ImageSharp/Properties/AssemblyInfo.cs +++ /dev/null @@ -1,9 +0,0 @@ -// Copyright (c) Six Labors. -// Licensed under the Six Labors Split License. - -// Redundant suppressing of SA1413 for Rider. -[assembly: - System.Diagnostics.CodeAnalysis.SuppressMessage( - "StyleCop.CSharp.MaintainabilityRules", - "SA1413:UseTrailingCommasInMultiLineInitializers", - Justification = "Follows SixLabors.ruleset")] diff --git a/tests/ImageSharp.Benchmarks/Codecs/Gif/DecodeEncodeGif.cs b/tests/ImageSharp.Benchmarks/Codecs/Gif/DecodeEncodeGif.cs new file mode 100644 index 0000000000..06b07c3187 --- /dev/null +++ b/tests/ImageSharp.Benchmarks/Codecs/Gif/DecodeEncodeGif.cs @@ -0,0 +1,59 @@ +// Copyright (c) Six Labors. +// Licensed under the Six Labors Split License. + +using System.Drawing.Imaging; +using BenchmarkDotNet.Attributes; +using SixLabors.ImageSharp.Formats.Gif; +using SixLabors.ImageSharp.Processing; +using SixLabors.ImageSharp.Processing.Processors.Quantization; +using SixLabors.ImageSharp.Tests; +using SDImage = System.Drawing.Image; + +namespace SixLabors.ImageSharp.Benchmarks.Codecs; + +public abstract class DecodeEncodeGif +{ + private Stream outputStream; + + protected abstract GifEncoder Encoder { get; } + + [Params(TestImages.Gif.Leo, TestImages.Gif.Cheers)] + public string TestImage { get; set; } + + private string TestImageFullPath => Path.Combine(TestEnvironment.InputImagesDirectoryFullPath, this.TestImage); + + [GlobalSetup] + public void Setup() => this.outputStream = new MemoryStream(); + + [GlobalCleanup] + public void Cleanup() => this.outputStream.Close(); + + [Benchmark(Baseline = true)] + public void SystemDrawing() + { + this.outputStream.Position = 0; + using SDImage image = SDImage.FromFile(this.TestImageFullPath); + image.Save(this.outputStream, ImageFormat.Gif); + } + + [Benchmark] + public void ImageSharp() + { + this.outputStream.Position = 0; + using Image image = Image.Load(this.TestImageFullPath); + image.SaveAsGif(this.outputStream, this.Encoder); + } +} + +public class DecodeEncodeGif_DefaultEncoder : DecodeEncodeGif +{ + protected override GifEncoder Encoder => new(); +} + +public class DecodeEncodeGif_CoarsePaletteEncoder : DecodeEncodeGif +{ + protected override GifEncoder Encoder => new() + { + Quantizer = new WebSafePaletteQuantizer(new QuantizerOptions { Dither = KnownDitherings.Bayer4x4, ColorMatchingMode = ColorMatchingMode.Coarse }) + }; +} diff --git a/tests/ImageSharp.Benchmarks/Codecs/Gif/EncodeGif.cs b/tests/ImageSharp.Benchmarks/Codecs/Gif/EncodeGif.cs index 048c2aadda..d11cb3218b 100644 --- a/tests/ImageSharp.Benchmarks/Codecs/Gif/EncodeGif.cs +++ b/tests/ImageSharp.Benchmarks/Codecs/Gif/EncodeGif.cs @@ -12,21 +12,16 @@ namespace SixLabors.ImageSharp.Benchmarks.Codecs; -[Config(typeof(Config.ShortMultiFramework))] -public class EncodeGif +public abstract class EncodeGif { // System.Drawing needs this. private Stream bmpStream; private SDImage bmpDrawing; private Image bmpCore; - // Try to get as close to System.Drawing's output as possible - private readonly GifEncoder encoder = new GifEncoder - { - Quantizer = new WebSafePaletteQuantizer(new QuantizerOptions { Dither = KnownDitherings.Bayer4x4 }) - }; + protected abstract GifEncoder Encoder { get; } - [Params(TestImages.Bmp.Car, TestImages.Png.Rgb48Bpp)] + [Params(TestImages.Gif.Leo, TestImages.Gif.Cheers)] public string TestImage { get; set; } [GlobalSetup] @@ -61,6 +56,19 @@ public void GifSystemDrawing() public void GifImageSharp() { using var memoryStream = new MemoryStream(); - this.bmpCore.SaveAsGif(memoryStream, this.encoder); + this.bmpCore.SaveAsGif(memoryStream, this.Encoder); } } + +public class EncodeGif_DefaultEncoder : EncodeGif +{ + protected override GifEncoder Encoder => new(); +} + +public class EncodeGif_CoarsePaletteEncoder : EncodeGif +{ + protected override GifEncoder Encoder => new() + { + Quantizer = new WebSafePaletteQuantizer(new QuantizerOptions { Dither = KnownDitherings.Bayer4x4, ColorMatchingMode = ColorMatchingMode.Coarse }) + }; +} diff --git a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj index 0ba2f4b949..8315dfa4b5 100644 --- a/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj +++ b/tests/ImageSharp.Benchmarks/ImageSharp.Benchmarks.csproj @@ -11,7 +11,7 @@ false Debug;Release - + diff --git a/tests/ImageSharp.Tests/Formats/Gif/GifDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Gif/GifDecoderTests.cs index f4e6487a57..dcce56e881 100644 --- a/tests/ImageSharp.Tests/Formats/Gif/GifDecoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Gif/GifDecoderTests.cs @@ -34,6 +34,41 @@ public void Decode_VerifyAllFrames(TestImageProvider provider) image.CompareToReferenceOutputMultiFrame(provider, ImageComparer.Exact); } + [Theory] + [WithFile(TestImages.Gif.AnimatedLoop, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.AnimatedLoopInterlaced, PixelTypes.Rgba32)] + public void Decode_Animated(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + image.DebugSaveMultiFrame(provider); + image.CompareToReferenceOutputMultiFrame(provider, ImageComparer.Exact); + } + + [Theory] + [WithFile(TestImages.Gif.AnimatedTransparentNoRestore, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.AnimatedTransparentRestorePrevious, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.AnimatedTransparentLoop, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.AnimatedTransparentFirstFrameRestorePrev, PixelTypes.Rgba32)] + public void Decode_Animated_WithTransparency(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + image.DebugSaveMultiFrame(provider); + image.CompareToReferenceOutputMultiFrame(provider, ImageComparer.Exact); + } + + [Theory] + [WithFile(TestImages.Gif.StaticNontransparent, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.StaticTransparent, PixelTypes.Rgba32)] + public void Decode_Static_No_Animation(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + image.DebugSave(provider); + image.CompareFirstFrameToReferenceOutput(ImageComparer.Exact, provider); + } + [Theory] [WithFile(TestImages.Gif.Issues.Issue2450_A, PixelTypes.Rgba32)] [WithFile(TestImages.Gif.Issues.Issue2450_B, PixelTypes.Rgba32)] @@ -334,4 +369,16 @@ public void IssueTooLargeLzwBits(TestImageProvider provider) image.DebugSaveMultiFrame(provider); image.CompareToReferenceOutputMultiFrame(provider, ImageComparer.Exact); } + + // https://github.com/SixLabors/ImageSharp/issues/2859 + [Theory] + [WithFile(TestImages.Gif.Issues.Issue2859_A, PixelTypes.Rgba32)] + [WithFile(TestImages.Gif.Issues.Issue2859_B, PixelTypes.Rgba32)] + public void Issue2859_LZWPixelStackOverflow(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + image.DebugSaveMultiFrame(provider); + image.CompareToReferenceOutputMultiFrame(provider, ImageComparer.Exact); + } } diff --git a/tests/ImageSharp.Tests/Formats/Gif/GifEncoderTests.cs b/tests/ImageSharp.Tests/Formats/Gif/GifEncoderTests.cs index a7e16f7737..dcbd4b38eb 100644 --- a/tests/ImageSharp.Tests/Formats/Gif/GifEncoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Gif/GifEncoderTests.cs @@ -382,4 +382,21 @@ public void Encode_Animated_VisualTest(TestImageProvider provide provider.Utility.SaveTestOutputFile(image, "png", new PngEncoder(), "animated"); provider.Utility.SaveTestOutputFile(image, "gif", new GifEncoder(), "animated"); } + + [Theory] + [WithFile(TestImages.Gif.Issues.Issue2866, PixelTypes.Rgba32)] + public void GifEncoder_CanDecode_AndEncode_Issue2866(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + + // Save the image for visual inspection. + provider.Utility.SaveTestOutputFile(image, "gif", new GifEncoder(), "animated"); + + // Now compare the debug output with the reference output. + // We do this because the gif encoding is lossy and encoding will lead to differences in the 10s of percent. + // From the unencoded image, we can see that the image is visually the same. + static bool Predicate(int i, int _) => i % 8 == 0; // Image has many frames, only compare a selection of them. + image.CompareDebugOutputToReferenceOutputMultiFrame(provider, ImageComparer.Exact, extension: "gif", predicate: Predicate); + } } diff --git a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Metadata.cs b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Metadata.cs index e68dd1f879..bd2acaff1c 100644 --- a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Metadata.cs +++ b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Metadata.cs @@ -452,6 +452,45 @@ public void Issue2758_DecodeWorks(TestImageProvider provider) image.Save(ms, new JpegEncoder()); } + // https://github.com/SixLabors/ImageSharp/issues/2857 + [Theory] + [WithFile(TestImages.Jpeg.Issues.Issue2857, PixelTypes.Rgb24)] + public void Issue2857_SubSubIfds(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(JpegDecoder.Instance); + + Assert.Equal(5616, image.Width); + Assert.Equal(3744, image.Height); + + JpegMetadata meta = image.Metadata.GetJpegMetadata(); + Assert.Equal(92, meta.LuminanceQuality); + Assert.Equal(93, meta.ChrominanceQuality); + + ExifProfile exifProfile = image.Metadata.ExifProfile; + Assert.NotNull(exifProfile); + + using MemoryStream ms = new(); + bool hasThumbnail = exifProfile.TryCreateThumbnail(out _); + Assert.False(hasThumbnail); + + Assert.Equal("BilderBox - Erwin Wodicka / wodicka@aon.at", exifProfile.GetValue(ExifTag.Copyright).Value); + Assert.Equal("Adobe Photoshop CS3 Windows", exifProfile.GetValue(ExifTag.Software).Value); + + Assert.Equal("Carers; seniors; caregiver; senior care; retirement home; hands; old; elderly; elderly caregiver; elder care; elderly care; geriatric care; nursing home; age; old age care; outpatient; needy; health care; home nurse; home care; sick; retirement; medical; mobile; the elderly; nursing department; nursing treatment; nursing; care services; nursing services; nursing care; nursing allowance; nursing homes; home nursing; care category; nursing class; care; nursing shortage; nursing patient care staff\0", exifProfile.GetValue(ExifTag.XPKeywords).Value); + + Assert.Equal( + new EncodedString(EncodedString.CharacterCode.ASCII, "StockSubmitter|Miscellaneous||Miscellaneous$|00|0000330000000110000000000000000|22$@NA_1005010.460@145$$@Miscellaneous.Miscellaneous$$@$@26$$@$@$@$@205$@$@$@$@$@$@$@$@$@43$@$@$@$$@Miscellaneous.Miscellaneous$$@90$$@22$@$@$@$@$@$@$|||"), + exifProfile.GetValue(ExifTag.UserComment).Value); + + // the profile contains 4 duplicated UserComment + Assert.Equal(1, exifProfile.Values.Count(t => t.Tag == ExifTag.UserComment)); + + image.Mutate(x => x.Crop(new(0, 0, 100, 100))); + + image.Save(ms, new JpegEncoder()); + } + private static void VerifyEncodedStrings(ExifProfile exif) { Assert.NotNull(exif); diff --git a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs index 2fe4282607..97be5d8383 100644 --- a/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.cs @@ -67,11 +67,11 @@ private static bool SkipTest(ITestImageProvider provider) public void ParseStream_BasicPropertiesAreCorrect() { JpegDecoderOptions options = new(); + Configuration configuration = options.GeneralOptions.Configuration; byte[] bytes = TestFile.Create(TestImages.Jpeg.Progressive.Progress).Bytes; using MemoryStream ms = new(bytes); - using BufferedReadStream bufferedStream = new(Configuration.Default, ms); using JpegDecoderCore decoder = new(options); - using Image image = decoder.Decode(bufferedStream, cancellationToken: default); + using Image image = decoder.Decode(configuration, ms, cancellationToken: default); // I don't know why these numbers are different. All I know is that the decoder works // and spectral data is exactly correct also. diff --git a/tests/ImageSharp.Tests/Formats/Jpg/Utils/JpegFixture.cs b/tests/ImageSharp.Tests/Formats/Jpg/Utils/JpegFixture.cs index 978978989e..a3fbe4018e 100644 --- a/tests/ImageSharp.Tests/Formats/Jpg/Utils/JpegFixture.cs +++ b/tests/ImageSharp.Tests/Formats/Jpg/Utils/JpegFixture.cs @@ -5,7 +5,6 @@ using System.Text; using SixLabors.ImageSharp.Formats.Jpeg; using SixLabors.ImageSharp.Formats.Jpeg.Components; -using SixLabors.ImageSharp.IO; using SixLabors.ImageSharp.PixelFormats; using Xunit.Abstractions; @@ -216,18 +215,17 @@ internal static bool CompareBlocks(Span a, Span b, float tolerance internal static JpegDecoderCore ParseJpegStream(string testFileName, bool metaDataOnly = false) { byte[] bytes = TestFile.Create(testFileName).Bytes; - using var ms = new MemoryStream(bytes); - using var bufferedStream = new BufferedReadStream(Configuration.Default, ms); - - JpegDecoderOptions options = new(); - var decoder = new JpegDecoderCore(options); + using MemoryStream ms = new(bytes); + JpegDecoderOptions decoderOptions = new(); + Configuration configuration = decoderOptions.GeneralOptions.Configuration; + JpegDecoderCore decoder = new(decoderOptions); if (metaDataOnly) { - decoder.Identify(bufferedStream, cancellationToken: default); + decoder.Identify(configuration, ms, default); } else { - using Image image = decoder.Decode(bufferedStream, cancellationToken: default); + using Image image = decoder.Decode(configuration, ms, default); } return decoder; diff --git a/tests/ImageSharp.Tests/Formats/Png/PngDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Png/PngDecoderTests.cs index 11af57e39f..5a5dd9aaa7 100644 --- a/tests/ImageSharp.Tests/Formats/Png/PngDecoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Png/PngDecoderTests.cs @@ -705,10 +705,20 @@ public void Decode_BadPalette(string file) [Theory] [WithFile(TestImages.Png.Issue2752, PixelTypes.Rgba32)] public void CanDecodeJustOneFrame(TestImageProvider provider) - where TPixel : unmanaged, IPixel + where TPixel : unmanaged, IPixel { DecoderOptions options = new() { MaxFrames = 1 }; using Image image = provider.GetImage(PngDecoder.Instance, options); Assert.Equal(1, image.Frames.Count); } + + [Theory] + [WithFile(TestImages.Png.Issue2924, PixelTypes.Rgba32)] + public void CanDecode_Issue2924(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(PngDecoder.Instance); + image.DebugSave(provider); + image.CompareToReferenceOutput(provider); + } } diff --git a/tests/ImageSharp.Tests/Formats/Png/PngEncoderTests.cs b/tests/ImageSharp.Tests/Formats/Png/PngEncoderTests.cs index ca5aae961c..c94413cb69 100644 --- a/tests/ImageSharp.Tests/Formats/Png/PngEncoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Png/PngEncoderTests.cs @@ -449,6 +449,7 @@ public void Encode_WithPngTransparentColorBehaviorClear_Works(PngColorType color [WithFile(TestImages.Png.APng, PixelTypes.Rgba32)] [WithFile(TestImages.Png.DefaultNotAnimated, PixelTypes.Rgba32)] [WithFile(TestImages.Png.FrameOffset, PixelTypes.Rgba32)] + [WithFile(TestImages.Png.Issue2882, PixelTypes.Rgba32)] public void Encode_APng(TestImageProvider provider) where TPixel : unmanaged, IPixel { @@ -484,8 +485,9 @@ public void Encode_APng(TestImageProvider provider) } [Theory] - [WithFile(TestImages.Gif.Leo, PixelTypes.Rgba32)] - public void Encode_AnimatedFormatTransform_FromGif(TestImageProvider provider) + [WithFile(TestImages.Gif.Leo, PixelTypes.Rgba32, 0.7921F)] + [WithFile(TestImages.Gif.Issues.Issue2866, PixelTypes.Rgba32, 1.06F)] + public void Encode_AnimatedFormatTransform_FromGif(TestImageProvider provider, float percentage) where TPixel : unmanaged, IPixel { if (TestEnvironment.RunsOnCI && !TestEnvironment.IsWindows) @@ -494,17 +496,18 @@ public void Encode_AnimatedFormatTransform_FromGif(TestImageProvider image = provider.GetImage(GifDecoder.Instance); - using MemoryStream memStream = new(); image.Save(memStream, PngEncoder); memStream.Position = 0; + image.DebugSave(provider: provider, extension: "png", encoder: PngEncoder); + using Image output = Image.Load(memStream); // TODO: Find a better way to compare. - // The image has been visually checked but the quantization pattern used in the png encoder - // means we cannot use an exact comparison nor replicate using the quantizing processor. - ImageComparer.TolerantPercentage(0.613f).VerifySimilarity(output, image); + // The image has been visually checked but the coarse cache used by the palette quantizer + // can lead to minor differences between frames. + ImageComparer.TolerantPercentage(percentage).VerifySimilarity(output, image); GifMetadata gif = image.Metadata.GetGifMetadata(); PngMetadata png = output.Metadata.GetPngMetadata(); @@ -699,6 +702,39 @@ public void Issue2668_Quantized_Encode_Alpha(TestImageProvider p encoded.CompareToReferenceOutput(ImageComparer.Exact, provider); } + [Fact] + public void Issue_2862() + { + // Create a grayscale palette (or any other palette with colors that are very close to each other): + Rgba32[] palette = Enumerable.Range(0, 256).Select(i => new Rgba32((byte)i, (byte)i, (byte)i)).ToArray(); + + using Image image = new(254, 4); + for (int y = 0; y < image.Height; y++) + { + for (int x = 0; x < image.Width; x++) + { + image[x, y] = palette[x]; + } + } + + using MemoryStream ms = new(); + PaletteQuantizer quantizer = new( + palette.Select(Color.FromPixel).ToArray(), + new QuantizerOptions() { ColorMatchingMode = ColorMatchingMode.Hybrid }); + + image.Save(ms, new PngEncoder + { + ColorType = PngColorType.Palette, + BitDepth = PngBitDepth.Bit8, + Quantizer = quantizer + }); + + ms.Position = 0; + + using Image encoded = Image.Load(ms); + ImageComparer.Exact.VerifySimilarity(image, encoded); + } + private static void TestPngEncoderCore( TestImageProvider provider, PngColorType pngColorType, diff --git a/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs index 1b12adac23..b16119f338 100644 --- a/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs +++ b/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs @@ -23,7 +23,7 @@ public void Compress_Decompress_Roundtrip_Works(byte[] data) using BufferedReadStream stream = CreateCompressedStream(data); byte[] buffer = new byte[data.Length]; - using var decompressor = new DeflateTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false); + using var decompressor = new DeflateTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false, false, 0, 0); decompressor.Decompress(stream, 0, (uint)stream.Length, 1, buffer, default); diff --git a/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs index 635a3a33e4..8c21e346af 100644 --- a/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs +++ b/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs @@ -37,7 +37,7 @@ public void Compress_Decompress_Roundtrip_Works(byte[] data) using BufferedReadStream stream = CreateCompressedStream(data); byte[] buffer = new byte[data.Length]; - using var decompressor = new LzwTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false); + using var decompressor = new LzwTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false, false, 0, 0); decompressor.Decompress(stream, 0, (uint)stream.Length, 1, buffer, default); Assert.Equal(data, buffer); diff --git a/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs index ab49805a35..839334449d 100644 --- a/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs @@ -91,6 +91,40 @@ public void TiffDecoder_CanDecode_Planar(TestImageProvider provi public void TiffDecoder_CanDecode_Tiled(TestImageProvider provider) where TPixel : unmanaged, IPixel => TestTiffDecoder(provider); + [Theory] + [WithFile(TiledRgbaDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgbDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGrayDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray16BitLittleEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray16BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray32BitLittleEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray32BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb48BitLittleEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb48BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgba64BitLittleEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgba64BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb96BitLittleEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb96BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + public void TiffDecoder_CanDecode_Tiled_Deflate_Compressed(TestImageProvider provider) + where TPixel : unmanaged, IPixel => TestTiffDecoder(provider); + + [Theory] + [WithFile(TiledRgbaLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgbLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGrayLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray16BitLittleEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray16BitBigEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray32BitLittleEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledGray32BitBigEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb48BitLittleEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb48BitBigEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgba64BitLittleEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgba64BitBigEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb96BitLittleEndianLzwCompressedWithPredictor, PixelTypes.Rgba32)] + [WithFile(TiledRgb96BitBigEndianDeflateCompressedWithPredictor, PixelTypes.Rgba32)] + public void TiffDecoder_CanDecode_Tiled_Lzw_Compressed(TestImageProvider provider) + where TPixel : unmanaged, IPixel => TestTiffDecoder(provider); + [Theory] [WithFile(Rgba8BitPlanarUnassociatedAlpha, PixelTypes.Rgba32)] public void TiffDecoder_CanDecode_Planar_32Bit(TestImageProvider provider) diff --git a/tests/ImageSharp.Tests/Formats/Tiff/TiffEncoderTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/TiffEncoderTests.cs index 1fafb4cd04..86d518e902 100644 --- a/tests/ImageSharp.Tests/Formats/Tiff/TiffEncoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/Tiff/TiffEncoderTests.cs @@ -518,6 +518,16 @@ public void TiffEncoder_EncodeBiColor_WithModifiedHuffmanCompression_WhiteIsZero public void TiffEncoder_EncodeBiColor_WithModifiedHuffmanCompression_BlackIsZero_Works(TestImageProvider provider) where TPixel : unmanaged, IPixel => TestTiffEncoderCore(provider, TiffBitsPerPixel.Bit1, TiffPhotometricInterpretation.BlackIsZero, TiffCompression.Ccitt1D); + [Theory] + [WithFile(Issue2909, PixelTypes.Rgba32)] + public void TiffEncoder_WithLzwCompression_Works(TestImageProvider provider) + where TPixel : unmanaged, IPixel => TestTiffEncoderCore(provider, TiffBitsPerPixel.Bit24, null, TiffCompression.Lzw, imageDecoder: TiffDecoder.Instance); + + [Theory] + [WithFile(Issue2909, PixelTypes.Rgba32)] + public void TiffEncoder_WithDeflateCompression_Works(TestImageProvider provider) + where TPixel : unmanaged, IPixel => TestTiffEncoderCore(provider, TiffBitsPerPixel.Bit24, null, TiffCompression.Deflate, imageDecoder: TiffDecoder.Instance); + [Theory] [WithFile(GrayscaleUncompressed, PixelTypes.L8, TiffPhotometricInterpretation.BlackIsZero, TiffCompression.PackBits)] [WithFile(GrayscaleUncompressed16Bit, PixelTypes.L16, TiffPhotometricInterpretation.BlackIsZero, TiffCompression.PackBits)] diff --git a/tests/ImageSharp.Tests/Formats/WebP/WebpCommonUtilsTests.cs b/tests/ImageSharp.Tests/Formats/WebP/WebpCommonUtilsTests.cs index a3fe028db5..1491cd13cf 100644 --- a/tests/ImageSharp.Tests/Formats/WebP/WebpCommonUtilsTests.cs +++ b/tests/ImageSharp.Tests/Formats/WebP/WebpCommonUtilsTests.cs @@ -106,7 +106,7 @@ private static void RunCheckNoneOpaqueWithNoneOpaquePixelsTest() 174, 183, 189, 255, 148, 158, 158, 255, }; - Span row = MemoryMarshal.Cast(rowBytes); + ReadOnlySpan row = MemoryMarshal.Cast(rowBytes); bool noneOpaque; for (int length = 8; length < row.Length; length += 8) @@ -188,7 +188,7 @@ private static void RunCheckNoneOpaqueWithOpaquePixelsTest() 174, 183, 189, 255, 148, 158, 158, 255, }; - Span row = MemoryMarshal.Cast(rowBytes); + ReadOnlySpan row = MemoryMarshal.Cast(rowBytes); bool noneOpaque; for (int length = 8; length < row.Length; length += 8) diff --git a/tests/ImageSharp.Tests/Formats/WebP/WebpDecoderTests.cs b/tests/ImageSharp.Tests/Formats/WebP/WebpDecoderTests.cs index 0dda304b64..d81cd20849 100644 --- a/tests/ImageSharp.Tests/Formats/WebP/WebpDecoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/WebP/WebpDecoderTests.cs @@ -450,6 +450,22 @@ public void WebpDecoder_CanDecode_Issue2670(TestImageProvider pr image.CompareToOriginal(provider, ReferenceDecoder); } + // https://github.com/SixLabors/ImageSharp/issues/2866 + [Theory] + [WithFile(Lossy.Issue2866, PixelTypes.Rgba32)] + public void WebpDecoder_CanDecode_Issue2866(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + // Web + using Image image = provider.GetImage( + WebpDecoder.Instance, + new WebpDecoderOptions() { BackgroundColorHandling = BackgroundColorHandling.Ignore }); + + // We can't use the reference decoder here. + // It creates frames of different size without blending the frames. + image.DebugSave(provider, extension: "webp", encoder: new WebpEncoder()); + } + [Theory] [WithFile(Lossless.LossLessCorruptImage3, PixelTypes.Rgba32)] public void WebpDecoder_ThrowImageFormatException_OnInvalidImages(TestImageProvider provider) @@ -533,4 +549,14 @@ public void Identify_VerifyRatio(string imagePath) Assert.Equal(37.8, meta.VerticalResolution); Assert.Equal(PixelResolutionUnit.PixelsPerCentimeter, meta.ResolutionUnits); } + + [Theory] + [WithFile(Lossy.Issue2925, PixelTypes.Rgba32)] + public void WebpDecoder_CanDecode_Issue2925(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(WebpDecoder.Instance); + image.DebugSave(provider); + image.CompareToOriginal(provider, ReferenceDecoder); + } } diff --git a/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs b/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs index d1d83ffb9a..c6751e2a66 100644 --- a/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs +++ b/tests/ImageSharp.Tests/Formats/WebP/WebpEncoderTests.cs @@ -514,6 +514,21 @@ public void WebpDecoder_CanDecode_Issue2763(TestImageProvider pr image.VerifyEncoder(provider, "webp", string.Empty, encoder); } + // https://github.com/SixLabors/ImageSharp/issues/2801 + [Theory] + [WithFile(Lossy.Issue2801, PixelTypes.Rgba32)] + public void WebpDecoder_CanDecode_Issue2801(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + WebpEncoder encoder = new() + { + Quality = 100 + }; + + using Image image = provider.GetImage(); + image.VerifyEncoder(provider, "webp", string.Empty, encoder, ImageComparer.TolerantPercentage(0.0994F)); + } + public static void RunEncodeLossy_WithPeakImage() { TestImageProvider provider = TestImageProvider.File(TestImageLossyFullPath); @@ -529,6 +544,44 @@ public static void RunEncodeLossy_WithPeakImage() [Fact] public void RunEncodeLossy_WithPeakImage_WithoutHardwareIntrinsics_Works() => FeatureTestRunner.RunWithHwIntrinsicsFeature(RunEncodeLossy_WithPeakImage, HwIntrinsics.DisableHWIntrinsic); + [Theory] + [WithFile(TestPatternOpaque, PixelTypes.Rgba32)] + public void CanSave_NonSeekableStream(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + WebpEncoder encoder = new(); + + using MemoryStream seekable = new(); + image.Save(seekable, encoder); + + using MemoryStream memoryStream = new(); + using NonSeekableStream nonSeekable = new(memoryStream); + + image.Save(nonSeekable, encoder); + + Assert.True(seekable.ToArray().SequenceEqual(memoryStream.ToArray())); + } + + [Theory] + [WithFile(TestPatternOpaque, PixelTypes.Rgba32)] + public async Task CanSave_NonSeekableStream_Async(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + WebpEncoder encoder = new(); + + await using MemoryStream seekable = new(); + image.Save(seekable, encoder); + + await using MemoryStream memoryStream = new(); + await using NonSeekableStream nonSeekable = new(memoryStream); + + await image.SaveAsync(nonSeekable, encoder); + + Assert.True(seekable.ToArray().SequenceEqual(memoryStream.ToArray())); + } + private static ImageComparer GetComparer(int quality) { float tolerance = 0.01f; // ~1.0% diff --git a/tests/ImageSharp.Tests/IO/ChunkedMemoryStreamTests.cs b/tests/ImageSharp.Tests/IO/ChunkedMemoryStreamTests.cs index 1803cfddb9..390170cfef 100644 --- a/tests/ImageSharp.Tests/IO/ChunkedMemoryStreamTests.cs +++ b/tests/ImageSharp.Tests/IO/ChunkedMemoryStreamTests.cs @@ -13,6 +13,8 @@ namespace SixLabors.ImageSharp.Tests.IO; /// public class ChunkedMemoryStreamTests { + private readonly Random bufferFiller = new(123); + /// /// The default length in bytes of each buffer chunk when allocating large buffers. /// @@ -30,7 +32,7 @@ public class ChunkedMemoryStreamTests [Fact] public void MemoryStream_GetPositionTest_Negative() { - using var ms = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream ms = new(this.allocator); long iCurrentPos = ms.Position; for (int i = -1; i > -6; i--) { @@ -42,7 +44,7 @@ public void MemoryStream_GetPositionTest_Negative() [Fact] public void MemoryStream_ReadTest_Negative() { - var ms2 = new ChunkedMemoryStream(this.allocator); + ChunkedMemoryStream ms2 = new(this.allocator); Assert.Throws(() => ms2.Read(null, 0, 0)); Assert.Throws(() => ms2.Read(new byte[] { 1 }, -1, 0)); @@ -64,7 +66,7 @@ public void MemoryStream_ReadTest_Negative() public void MemoryStream_ReadByteTest(int length) { using MemoryStream ms = this.CreateTestStream(length); - using var cms = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream cms = new(this.allocator); ms.CopyTo(cms); cms.Position = 0; @@ -85,7 +87,7 @@ public void MemoryStream_ReadByteTest(int length) public void MemoryStream_ReadByteBufferTest(int length) { using MemoryStream ms = this.CreateTestStream(length); - using var cms = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream cms = new(this.allocator); ms.CopyTo(cms); cms.Position = 0; @@ -105,10 +107,11 @@ public void MemoryStream_ReadByteBufferTest(int length) [InlineData(DefaultSmallChunkSize * 4)] [InlineData((int)(DefaultSmallChunkSize * 5.5))] [InlineData(DefaultSmallChunkSize * 16)] + [InlineData(DefaultSmallChunkSize * 32)] public void MemoryStream_ReadByteBufferSpanTest(int length) { using MemoryStream ms = this.CreateTestStream(length); - using var cms = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream cms = new(this.allocator); ms.CopyTo(cms); cms.Position = 0; @@ -122,18 +125,24 @@ public void MemoryStream_ReadByteBufferSpanTest(int length) } } - [Fact] - public void MemoryStream_WriteToTests() + [Theory] + [InlineData(DefaultSmallChunkSize)] + [InlineData((int)(DefaultSmallChunkSize * 1.5))] + [InlineData(DefaultSmallChunkSize * 4)] + [InlineData((int)(DefaultSmallChunkSize * 5.5))] + [InlineData(DefaultSmallChunkSize * 16)] + [InlineData(DefaultSmallChunkSize * 32)] + public void MemoryStream_WriteToTests(int length) { - using (var ms2 = new ChunkedMemoryStream(this.allocator)) + using (ChunkedMemoryStream ms2 = new(this.allocator)) { byte[] bytArrRet; - byte[] bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; + byte[] bytArr = this.CreateTestBuffer(length); // [] Write to memoryStream, check the memoryStream ms2.Write(bytArr, 0, bytArr.Length); - using var readonlyStream = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream readonlyStream = new(this.allocator); ms2.WriteTo(readonlyStream); readonlyStream.Flush(); readonlyStream.Position = 0; @@ -146,11 +155,11 @@ public void MemoryStream_WriteToTests() } // [] Write to memoryStream, check the memoryStream - using (var ms2 = new ChunkedMemoryStream(this.allocator)) - using (var ms3 = new ChunkedMemoryStream(this.allocator)) + using (ChunkedMemoryStream ms2 = new(this.allocator)) + using (ChunkedMemoryStream ms3 = new(this.allocator)) { byte[] bytArrRet; - byte[] bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; + byte[] bytArr = this.CreateTestBuffer(length); ms2.Write(bytArr, 0, bytArr.Length); ms2.WriteTo(ms3); @@ -164,21 +173,29 @@ public void MemoryStream_WriteToTests() } } - [Fact] - public void MemoryStream_WriteToSpanTests() + [Theory] + [InlineData(DefaultSmallChunkSize)] + [InlineData((int)(DefaultSmallChunkSize * 1.5))] + [InlineData(DefaultSmallChunkSize * 4)] + [InlineData((int)(DefaultSmallChunkSize * 5.5))] + [InlineData(DefaultSmallChunkSize * 16)] + [InlineData(DefaultSmallChunkSize * 32)] + public void MemoryStream_WriteToSpanTests(int length) { - using (var ms2 = new ChunkedMemoryStream(this.allocator)) + using (ChunkedMemoryStream ms2 = new(this.allocator)) { Span bytArrRet; - Span bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; + Span bytArr = this.CreateTestBuffer(length); // [] Write to memoryStream, check the memoryStream ms2.Write(bytArr, 0, bytArr.Length); - using var readonlyStream = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream readonlyStream = new(this.allocator); ms2.WriteTo(readonlyStream); + readonlyStream.Flush(); readonlyStream.Position = 0; + bytArrRet = new byte[(int)readonlyStream.Length]; readonlyStream.Read(bytArrRet, 0, (int)readonlyStream.Length); for (int i = 0; i < bytArr.Length; i++) @@ -188,13 +205,14 @@ public void MemoryStream_WriteToSpanTests() } // [] Write to memoryStream, check the memoryStream - using (var ms2 = new ChunkedMemoryStream(this.allocator)) - using (var ms3 = new ChunkedMemoryStream(this.allocator)) + using (ChunkedMemoryStream ms2 = new(this.allocator)) + using (ChunkedMemoryStream ms3 = new(this.allocator)) { Span bytArrRet; - Span bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; + Span bytArr = this.CreateTestBuffer(length); ms2.Write(bytArr, 0, bytArr.Length); + ms2.WriteTo(ms3); ms3.Position = 0; bytArrRet = new byte[(int)ms3.Length]; @@ -209,37 +227,35 @@ public void MemoryStream_WriteToSpanTests() [Fact] public void MemoryStream_WriteByteTests() { - using (var ms2 = new ChunkedMemoryStream(this.allocator)) - { - byte[] bytArrRet; - byte[] bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; + using ChunkedMemoryStream ms2 = new(this.allocator); + byte[] bytArrRet; + byte[] bytArr = new byte[] { byte.MinValue, byte.MaxValue, 1, 2, 3, 4, 5, 6, 128, 250 }; - for (int i = 0; i < bytArr.Length; i++) - { - ms2.WriteByte(bytArr[i]); - } + for (int i = 0; i < bytArr.Length; i++) + { + ms2.WriteByte(bytArr[i]); + } - using var readonlyStream = new ChunkedMemoryStream(this.allocator); - ms2.WriteTo(readonlyStream); - readonlyStream.Flush(); - readonlyStream.Position = 0; - bytArrRet = new byte[(int)readonlyStream.Length]; - readonlyStream.Read(bytArrRet, 0, (int)readonlyStream.Length); - for (int i = 0; i < bytArr.Length; i++) - { - Assert.Equal(bytArr[i], bytArrRet[i]); - } + using ChunkedMemoryStream readonlyStream = new(this.allocator); + ms2.WriteTo(readonlyStream); + readonlyStream.Flush(); + readonlyStream.Position = 0; + bytArrRet = new byte[(int)readonlyStream.Length]; + readonlyStream.Read(bytArrRet, 0, (int)readonlyStream.Length); + for (int i = 0; i < bytArr.Length; i++) + { + Assert.Equal(bytArr[i], bytArrRet[i]); } } [Fact] public void MemoryStream_WriteToTests_Negative() { - using var ms2 = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream ms2 = new(this.allocator); Assert.Throws(() => ms2.WriteTo(null)); ms2.Write(new byte[] { 1 }, 0, 1); - var readonlyStream = new MemoryStream(new byte[1028], false); + MemoryStream readonlyStream = new(new byte[1028], false); Assert.Throws(() => ms2.WriteTo(readonlyStream)); readonlyStream.Dispose(); @@ -286,7 +302,7 @@ public void MemoryStream_CopyTo_Invalid() [MemberData(nameof(CopyToData))] public void CopyTo(Stream source, byte[] expected) { - using var destination = new ChunkedMemoryStream(this.allocator); + using ChunkedMemoryStream destination = new(this.allocator); source.CopyTo(destination); Assert.InRange(source.Position, source.Length, int.MaxValue); // Copying the data should have read to the end of the stream or stayed past the end. Assert.Equal(expected, destination.ToArray()); @@ -297,16 +313,16 @@ public static IEnumerable GetAllTestImages() IEnumerable allImageFiles = Directory.EnumerateFiles(TestEnvironment.InputImagesDirectoryFullPath, "*.*", SearchOption.AllDirectories) .Where(s => !s.EndsWith("txt", StringComparison.OrdinalIgnoreCase)); - var result = new List(); + List result = new(); foreach (string path in allImageFiles) { - result.Add(path.Substring(TestEnvironment.InputImagesDirectoryFullPath.Length)); + result.Add(path[TestEnvironment.InputImagesDirectoryFullPath.Length..]); } return result; } - public static IEnumerable AllTestImages = GetAllTestImages(); + public static IEnumerable AllTestImages { get; } = GetAllTestImages(); [Theory] [WithFileCollection(nameof(AllTestImages), PixelTypes.Rgba32)] @@ -334,40 +350,77 @@ public void DecoderIntegrationTest(TestImageProvider provider) ((TestImageProvider.FileProvider)provider).FilePath); using FileStream fs = File.OpenRead(fullPath); - using var nonSeekableStream = new NonSeekableStream(fs); + using NonSeekableStream nonSeekableStream = new(fs); + + using Image actual = Image.Load(nonSeekableStream); + + ImageComparer.Exact.VerifySimilarity(expected, actual); + expected.Dispose(); + } + + [Theory] + [WithFileCollection(nameof(AllTestImages), PixelTypes.Rgba32)] + public void EncoderIntegrationTest(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + if (!TestEnvironment.Is64BitProcess) + { + return; + } + + Image expected; + try + { + expected = provider.GetImage(); + } + catch + { + // The image is invalid + return; + } - var actual = Image.Load(nonSeekableStream); + string fullPath = Path.Combine( + TestEnvironment.InputImagesDirectoryFullPath, + ((TestImageProvider.FileProvider)provider).FilePath); + + using MemoryStream ms = new(); + using NonSeekableStream nonSeekableStream = new(ms); + expected.SaveAsWebp(nonSeekableStream); + + using Image actual = Image.Load(nonSeekableStream); ImageComparer.Exact.VerifySimilarity(expected, actual); + expected.Dispose(); } public static IEnumerable CopyToData() { // Stream is positioned @ beginning of data byte[] data1 = new byte[] { 1, 2, 3 }; - var stream1 = new MemoryStream(data1); + MemoryStream stream1 = new(data1); yield return new object[] { stream1, data1 }; // Stream is positioned in the middle of data byte[] data2 = new byte[] { 0xff, 0xf3, 0xf0 }; - var stream2 = new MemoryStream(data2) { Position = 1 }; + MemoryStream stream2 = new(data2) { Position = 1 }; yield return new object[] { stream2, new byte[] { 0xf3, 0xf0 } }; // Stream is positioned after end of data byte[] data3 = data2; - var stream3 = new MemoryStream(data3) { Position = data3.Length + 1 }; + MemoryStream stream3 = new(data3) { Position = data3.Length + 1 }; yield return new object[] { stream3, Array.Empty() }; } - private MemoryStream CreateTestStream(int length) + private byte[] CreateTestBuffer(int length) { byte[] buffer = new byte[length]; - var random = new Random(); - random.NextBytes(buffer); - - return new MemoryStream(buffer); + this.bufferFiller.NextBytes(buffer); + return buffer; } + + private MemoryStream CreateTestStream(int length) + => new(this.CreateTestBuffer(length)); } diff --git a/tests/ImageSharp.Tests/Image/ImageFrameTests.cs b/tests/ImageSharp.Tests/Image/ImageFrameTests.cs index 3b9779ea42..baa8ca699a 100644 --- a/tests/ImageSharp.Tests/Image/ImageFrameTests.cs +++ b/tests/ImageSharp.Tests/Image/ImageFrameTests.cs @@ -119,7 +119,7 @@ public void CopyPixelDataTo_Success(bool disco, bool byteSpan) } else { - Span destination = MemoryMarshal.Cast(actual); + Span destination = MemoryMarshal.Cast(actual.AsSpan()); image.Frames.RootFrame.CopyPixelDataTo(destination); } diff --git a/tests/ImageSharp.Tests/Image/ImageTests.WrapMemory.cs b/tests/ImageSharp.Tests/Image/ImageTests.WrapMemory.cs index 9aaefa41ef..46ae146942 100644 --- a/tests/ImageSharp.Tests/Image/ImageTests.WrapMemory.cs +++ b/tests/ImageSharp.Tests/Image/ImageTests.WrapMemory.cs @@ -294,8 +294,11 @@ public void WrapSystemDrawingBitmap_FromBytes_WhenObserved() } } - [Fact] - public unsafe void WrapMemory_Throws_OnTooLessWrongSize() + [Theory] + [InlineData(20, 5, 5)] + [InlineData(1023, 32, 32)] + [InlineData(65536, 65537, 65536)] + public unsafe void WrapMemory_Throws_OnTooLessWrongSize(int size, int width, int height) { var cfg = Configuration.CreateDefaultInstance(); var metaData = new ImageMetadata(); @@ -306,7 +309,7 @@ public unsafe void WrapMemory_Throws_OnTooLessWrongSize() { try { - using var image = Image.WrapMemory(cfg, ptr, 24, 5, 5, metaData); + using var image = Image.WrapMemory(cfg, ptr, size * sizeof(Rgba32), width, height, metaData); } catch (Exception e) { @@ -317,24 +320,30 @@ public unsafe void WrapMemory_Throws_OnTooLessWrongSize() Assert.IsType(thrownException); } - [Fact] - public unsafe void WrapMemory_FromPointer_CreatedImageIsCorrect() + [Theory] + [InlineData(25, 5, 5)] + [InlineData(26, 5, 5)] + [InlineData(2, 1, 1)] + [InlineData(1024, 32, 32)] + [InlineData(2048, 32, 32)] + public unsafe void WrapMemory_FromPointer_CreatedImageIsCorrect(int size, int width, int height) { var cfg = Configuration.CreateDefaultInstance(); var metaData = new ImageMetadata(); - var array = new Rgba32[25]; + var array = new Rgba32[size]; fixed (void* ptr = array) { - using (var image = Image.WrapMemory(cfg, ptr, 25, 5, 5, metaData)) + using (var image = Image.WrapMemory(cfg, ptr, size * sizeof(Rgba32), width, height, metaData)) { Assert.True(image.DangerousTryGetSinglePixelMemory(out Memory imageMem)); Span imageSpan = imageMem.Span; + Span sourceSpan = array.AsSpan(0, width * height); ref Rgba32 pixel0 = ref imageSpan[0]; - Assert.True(Unsafe.AreSame(ref array[0], ref pixel0)); + Assert.True(Unsafe.AreSame(ref sourceSpan[0], ref pixel0)); ref Rgba32 pixel_1 = ref imageSpan[imageSpan.Length - 1]; - Assert.True(Unsafe.AreSame(ref array[array.Length - 1], ref pixel_1)); + Assert.True(Unsafe.AreSame(ref sourceSpan[sourceSpan.Length - 1], ref pixel_1)); Assert.Equal(cfg, image.Configuration); Assert.Equal(metaData, image.Metadata); @@ -395,6 +404,7 @@ public unsafe void WrapSystemDrawingBitmap_FromPointer() [InlineData(0, 5, 5)] [InlineData(20, 5, 5)] [InlineData(1023, 32, 32)] + [InlineData(65536, 65537, 65536)] public void WrapMemory_MemoryOfT_InvalidSize(int size, int height, int width) { var array = new Rgba32[size]; @@ -430,6 +440,7 @@ private class TestMemoryOwner : IMemoryOwner [InlineData(0, 5, 5)] [InlineData(20, 5, 5)] [InlineData(1023, 32, 32)] + [InlineData(65536, 65537, 65536)] public void WrapMemory_IMemoryOwnerOfT_InvalidSize(int size, int height, int width) { var array = new Rgba32[size]; @@ -476,6 +487,7 @@ public void WrapMemory_IMemoryOwnerOfT_ValidSize(int size, int height, int width [InlineData(0, 5, 5)] [InlineData(20, 5, 5)] [InlineData(1023, 32, 32)] + [InlineData(65536, 65537, 65536)] public void WrapMemory_IMemoryOwnerOfByte_InvalidSize(int size, int height, int width) { var array = new byte[size * Unsafe.SizeOf()]; diff --git a/tests/ImageSharp.Tests/Image/ImageTests.cs b/tests/ImageSharp.Tests/Image/ImageTests.cs index ca51f7f5cb..6d68e1ab94 100644 --- a/tests/ImageSharp.Tests/Image/ImageTests.cs +++ b/tests/ImageSharp.Tests/Image/ImageTests.cs @@ -197,7 +197,7 @@ public void CopyPixelDataTo_Success(bool disco, bool byteSpan) } else { - Span destination = MemoryMarshal.Cast(actual); + Span destination = MemoryMarshal.Cast(actual.AsSpan()); image.CopyPixelDataTo(destination); } diff --git a/tests/ImageSharp.Tests/Image/NonSeekableStream.cs b/tests/ImageSharp.Tests/Image/NonSeekableStream.cs index 4b1f6e1568..2941490e9a 100644 --- a/tests/ImageSharp.Tests/Image/NonSeekableStream.cs +++ b/tests/ImageSharp.Tests/Image/NonSeekableStream.cs @@ -1,4 +1,4 @@ -// Copyright (c) Six Labors. +// Copyright (c) Six Labors. // Licensed under the Six Labors Split License. namespace SixLabors.ImageSharp.Tests; @@ -14,7 +14,7 @@ public NonSeekableStream(Stream dataStream) public override bool CanSeek => false; - public override bool CanWrite => false; + public override bool CanWrite => this.dataStream.CanWrite; public override bool CanTimeout => this.dataStream.CanTimeout; @@ -91,5 +91,5 @@ public override void SetLength(long value) => throw new NotSupportedException(); public override void Write(byte[] buffer, int offset, int count) - => throw new NotImplementedException(); + => this.dataStream.Write(buffer, offset, count); } diff --git a/tests/ImageSharp.Tests/Processing/Processors/Transforms/AffineTransformTests.cs b/tests/ImageSharp.Tests/Processing/Processors/Transforms/AffineTransformTests.cs index 895cf60fd3..05604ac6e6 100644 --- a/tests/ImageSharp.Tests/Processing/Processors/Transforms/AffineTransformTests.cs +++ b/tests/ImageSharp.Tests/Processing/Processors/Transforms/AffineTransformTests.cs @@ -231,6 +231,24 @@ public void Issue1911() Assert.Equal(100, image.Height); } + [Theory] + [WithSolidFilledImages(4, 4, nameof(Color.Red), PixelTypes.Rgba32)] + public void Issue2753(TestImageProvider provider) + where TPixel : unmanaged, IPixel + { + using Image image = provider.GetImage(); + + AffineTransformBuilder builder = + new AffineTransformBuilder().AppendRotationDegrees(270, new Vector2(3.5f, 3.5f)); + image.Mutate(x => x.BackgroundColor(Color.Red)); + image.Mutate(x => x = x.Transform(builder)); + + image.DebugSave(provider); + + Assert.Equal(4, image.Width); + Assert.Equal(8, image.Height); + } + [Theory] [WithTestPatternImages(100, 100, PixelTypes.Rgba32)] public void Identity(TestImageProvider provider) diff --git a/tests/ImageSharp.Tests/Processing/Transforms/ProjectiveTransformTests.cs b/tests/ImageSharp.Tests/Processing/Transforms/ProjectiveTransformTests.cs index 21eda034ea..128df01a06 100644 --- a/tests/ImageSharp.Tests/Processing/Transforms/ProjectiveTransformTests.cs +++ b/tests/ImageSharp.Tests/Processing/Transforms/ProjectiveTransformTests.cs @@ -128,11 +128,11 @@ public void PerspectiveTransformMatchesCSS(TestImageProvider pro using (Image image = provider.GetImage()) { #pragma warning disable SA1117 // Parameters should be on same line or separate lines - var matrix = new Matrix4x4( - 0.260987f, -0.434909f, 0, -0.0022184f, - 0.373196f, 0.949882f, 0, -0.000312129f, - 0, 0, 1, 0, - 52, 165, 0, 1); + Matrix4x4 matrix = new( + 0.260987f, -0.434909f, 0, -0.0022184f, + 0.373196f, 0.949882f, 0, -0.000312129f, + 0, 0, 1, 0, + 52, 165, 0, 1); #pragma warning restore SA1117 // Parameters should be on same line or separate lines ProjectiveTransformBuilder builder = new ProjectiveTransformBuilder() diff --git a/tests/ImageSharp.Tests/Processing/Transforms/TransformBuilderTestBase.cs b/tests/ImageSharp.Tests/Processing/Transforms/TransformBuilderTestBase.cs index 9d256efc1c..f046c2503c 100644 --- a/tests/ImageSharp.Tests/Processing/Transforms/TransformBuilderTestBase.cs +++ b/tests/ImageSharp.Tests/Processing/Transforms/TransformBuilderTestBase.cs @@ -2,6 +2,7 @@ // Licensed under the Six Labors Split License. using System.Numerics; +using SixLabors.ImageSharp.Processing; using SixLabors.ImageSharp.Processing.Processors.Transforms; namespace SixLabors.ImageSharp.Tests.Processing.Transforms; @@ -97,7 +98,7 @@ public void AppendRotationDegrees_WithoutSpecificRotationCenter_RotationIsCenter this.AppendRotationDegrees(builder, degrees); // TODO: We should also test CreateRotationMatrixDegrees() (and all TransformUtils stuff!) for correctness - Matrix3x2 matrix = TransformUtils.CreateRotationTransformMatrixDegrees(degrees, size); + Matrix3x2 matrix = TransformUtils.CreateRotationTransformMatrixDegrees(degrees, size, TransformSpace.Pixel); var position = new Vector2(x, y); var expected = Vector2.Transform(position, matrix); @@ -151,7 +152,7 @@ public void AppendSkewDegrees_WithoutSpecificSkewCenter_SkewIsCenteredAroundImag this.AppendSkewDegrees(builder, degreesX, degreesY); - Matrix3x2 matrix = TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, size); + Matrix3x2 matrix = TransformUtils.CreateSkewTransformMatrixDegrees(degreesX, degreesY, size, TransformSpace.Pixel); var position = new Vector2(x, y); var expected = Vector2.Transform(position, matrix); diff --git a/tests/ImageSharp.Tests/TestImages.cs b/tests/ImageSharp.Tests/TestImages.cs index 847aac3478..5a7c2e66ea 100644 --- a/tests/ImageSharp.Tests/TestImages.cs +++ b/tests/ImageSharp.Tests/TestImages.cs @@ -76,6 +76,7 @@ public static class Png public const string FrameOffset = "Png/animated/frame-offset.png"; public const string DefaultNotAnimated = "Png/animated/default-not-animated.png"; public const string Issue2666 = "Png/issues/Issue_2666.png"; + public const string Issue2882 = "Png/issues/Issue_2882.png"; // Filtered test images from http://www.schaik.com/pngsuite/pngsuite_fil_png.html public const string Filter0 = "Png/filter0.png"; @@ -159,6 +160,9 @@ public static class Png // Issue 2752: https://github.com/SixLabors/ImageSharp/issues/2752 public const string Issue2752 = "Png/issues/Issue_2752.png"; + // Issue 2924: https://github.com/SixLabors/ImageSharp/issues/2924 + public const string Issue2924 = "Png/issues/Issue_2924.png"; + public static class Bad { public const string MissingDataChunk = "Png/xdtn0g01.png"; @@ -324,6 +328,7 @@ public static class Issues public const string Issue2517 = "Jpg/issues/issue2517-bad-d7.jpg"; public const string Issue2638 = "Jpg/issues/Issue2638.jpg"; public const string Issue2758 = "Jpg/issues/issue-2758.jpg"; + public const string Issue2857 = "Jpg/issues/issue-2857-subsub-ifds.jpg"; public static class Fuzz { @@ -507,6 +512,31 @@ public static class Gif public const string Bit18RGBCube = "Gif/18-bit_RGB_Cube.gif"; public const string Global256NoTrans = "Gif/global-256-no-trans.gif"; + // Test imagages from: https://github.com/peterdn/gif-test-suite.git + // Animated gif with 4 frames, looping forever, no transparency. + public const string AnimatedLoop = "Gif/animated_loop.gif"; + + // Animated gif with 4 frames, interlaced, looping forever, no transparency. + public const string AnimatedLoopInterlaced = "Gif/animated_loop_interlaced.gif"; + + // Transparent gif with 4 frames, loops forever. + public const string AnimatedTransparentLoop = "Gif/animated_transparent_loop.gif"; + + // Transparent gif with 4 frames, loops forever, first frame restore previous. + public const string AnimatedTransparentFirstFrameRestorePrev = "Gif/animated_transparent_firstframerestoreprev_loop.gif"; + + // Transparent gif with 4 transparent frames, loops forever, no dispose + public const string AnimatedTransparentNoRestore = "Gif/animated_transparent_frame_norestore_loop.gif"; + + // Transparent gif with 4 transparent frames, loops forever, restore previous. + public const string AnimatedTransparentRestorePrevious = "Gif/animated_transparent_frame_restoreprev_loop.gif"; + + // Static gif with no animation, no transparency. + public const string StaticNontransparent = "Gif/static_nontransparent.gif"; + + // Static transparent gif with no animation. + public const string StaticTransparent = "Gif/static_transparent.gif"; + // Test images from https://github.com/robert-ancell/pygif/tree/master/test-suite public const string ZeroSize = "Gif/image-zero-size.gif"; public const string ZeroHeight = "Gif/image-zero-height.gif"; @@ -535,6 +565,9 @@ public static class Issues public const string Issue2450_B = "Gif/issues/issue_2450_2.gif"; public const string Issue2198 = "Gif/issues/issue_2198.gif"; public const string Issue2758 = "Gif/issues/issue_2758.gif"; + public const string Issue2866 = "Gif/issues/issue_2866.gif"; + public const string Issue2859_A = "Gif/issues/issue_2859_A.gif"; + public const string Issue2859_B = "Gif/issues/issue_2859_B.gif"; } public static readonly string[] Animated = @@ -824,6 +857,9 @@ public static class Lossy public const string Issue2257 = "Webp/issues/Issue2257.webp"; public const string Issue2670 = "Webp/issues/Issue2670.webp"; public const string Issue2763 = "Webp/issues/Issue2763.png"; + public const string Issue2801 = "Webp/issues/Issue2801.webp"; + public const string Issue2866 = "Webp/issues/Issue2866.webp"; + public const string Issue2925 = "Webp/issues/Issue2925.webp"; } } @@ -982,6 +1018,36 @@ public static class Tiff public const string QuadTile = "Tiff/quad-tile.tiff"; public const string TiledChunky = "Tiff/rgb_uncompressed_tiled_chunky.tiff"; public const string TiledPlanar = "Tiff/rgb_uncompressed_tiled_planar.tiff"; + public const string TiledRgbaDeflateCompressedWithPredictor = "Tiff/tiled_rgba_deflate_compressed_predictor.tiff"; + public const string TiledRgbDeflateCompressedWithPredictor = "Tiff/tiled_rgb_deflate_compressed_predictor.tiff"; + public const string TiledGrayDeflateCompressedWithPredictor = "Tiff/tiled_gray_deflate_compressed_predictor.tiff"; + public const string TiledGray16BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_gray_16bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledGray16BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_gray_16bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledGray32BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_gray_32bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledGray32BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_gray_32bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgb48BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgb_48bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgb48BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgb_48bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgba64BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgba_64bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgba64BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgba_64bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgb96BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgb_96bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgb96BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgb_96bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgba128BitLittleEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgba_128bit_little_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgba128BitBigEndianDeflateCompressedWithPredictor = "Tiff/tiled_rgba_128bit_big_endian_deflate_compressed_predictor.tiff"; + public const string TiledRgbaLzwCompressedWithPredictor = "Tiff/tiled_rgba_lzw_compressed_predictor.tiff"; + public const string TiledRgbLzwCompressedWithPredictor = "Tiff/tiled_rgb_lzw_compressed_predictor.tiff"; + public const string TiledGrayLzwCompressedWithPredictor = "Tiff/tiled_gray_lzw_compressed_predictor.tiff"; + public const string TiledGray16BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_gray_16bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledGray16BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_gray_16bit_big_endian_lzw_compressed_predictor.tiff"; + public const string TiledGray32BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_gray_32bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledGray32BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_gray_32bit_big_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgb48BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_rgb_48bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgb48BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_rgb_48bit_big_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgba64BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_rgba_64bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgba64BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_rgba_64bit_big_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgb96BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_rgb_96bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgb96BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_rgb_96bit_big_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgba128BitLittleEndianLzwCompressedWithPredictor = "Tiff/tiled_rgba_128bit_little_endian_lzw_compressed_predictor.tiff"; + public const string TiledRgba128BitBigEndianLzwCompressedWithPredictor = "Tiff/tiled_rgba_128bit_big_endian_lzw_compressed_predictor.tiff"; // Images with alpha channel. public const string Rgba2BitUnassociatedAlpha = "Tiff/RgbaUnassociatedAlpha2bit.tiff"; @@ -1069,6 +1135,8 @@ public static class Tiff public const string InvalidIptcData = "Tiff/7324fcaff3aad96f27899da51c1bb5d9.tiff"; public const string IptcData = "Tiff/iptc.tiff"; + public const string Issue2909 = "Tiff/Issues/Issue2909.tiff"; + public static readonly string[] Multiframes = { MultiframeDeflateWithPreview, MultiframeLzwPredictor /*, MultiFrameDifferentSize, MultiframeDifferentSizeTiled, MultiFrameDifferentVariants,*/ }; public static readonly string[] Metadata = { SampleMetadata }; diff --git a/tests/ImageSharp.Tests/TestUtilities/ReferenceCodecs/MagickReferenceDecoder.cs b/tests/ImageSharp.Tests/TestUtilities/ReferenceCodecs/MagickReferenceDecoder.cs index 80b5536ebd..01aff1c5f0 100644 --- a/tests/ImageSharp.Tests/TestUtilities/ReferenceCodecs/MagickReferenceDecoder.cs +++ b/tests/ImageSharp.Tests/TestUtilities/ReferenceCodecs/MagickReferenceDecoder.cs @@ -44,26 +44,33 @@ protected override Image Decode(DecoderOptions options, Stream s settings.SetDefines(pngReadDefines); using MagickImageCollection magickImageCollection = new(stream, settings); + int imageWidth = magickImageCollection.Max(x => x.Width); + int imageHeight = magickImageCollection.Max(x => x.Height); + List> framesList = new(); foreach (IMagickImage magicFrame in magickImageCollection) { - ImageFrame frame = new(configuration, magicFrame.Width, magicFrame.Height); + ImageFrame frame = new(configuration, imageWidth, imageHeight); framesList.Add(frame); - MemoryGroup framePixels = frame.PixelBuffer.FastMemoryGroup; + Buffer2DRegion buffer = frame.PixelBuffer.GetRegion( + imageWidth - magicFrame.Width, + imageHeight - magicFrame.Height, + magicFrame.Width, + magicFrame.Height); using IUnsafePixelCollection pixels = magicFrame.GetPixelsUnsafe(); if (magicFrame.Depth is 12 or 10 or 8 or 6 or 5 or 4 or 3 or 2 or 1) { byte[] data = pixels.ToByteArray(PixelMapping.RGBA); - FromRgba32Bytes(configuration, data, framePixels); + FromRgba32Bytes(configuration, data, buffer); } - else if (magicFrame.Depth is 16 or 14) + else if (magicFrame.Depth is 14 or 16 or 32) { ushort[] data = pixels.ToShortArray(PixelMapping.RGBA); Span bytes = MemoryMarshal.Cast(data.AsSpan()); - FromRgba64Bytes(configuration, bytes, framePixels); + FromRgba64Bytes(configuration, bytes, buffer); } else { @@ -83,32 +90,40 @@ protected override ImageInfo Identify(DecoderOptions options, Stream stream, Can return new(image.PixelType, image.Size, image.Metadata, new List(image.Frames.Select(x => x.Metadata))); } - private static void FromRgba32Bytes(Configuration configuration, Span rgbaBytes, IMemoryGroup destinationGroup) + private static void FromRgba32Bytes( + Configuration configuration, + Span rgbaBytes, + Buffer2DRegion destinationGroup) where TPixel : unmanaged, ImageSharp.PixelFormats.IPixel { Span sourcePixels = MemoryMarshal.Cast(rgbaBytes); - foreach (Memory m in destinationGroup) + for (int y = 0; y < destinationGroup.Height; y++) { - Span destBuffer = m.Span; + Span destBuffer = destinationGroup.DangerousGetRowSpan(y); PixelOperations.Instance.FromRgba32( configuration, sourcePixels[..destBuffer.Length], destBuffer); + sourcePixels = sourcePixels[destBuffer.Length..]; } } - private static void FromRgba64Bytes(Configuration configuration, Span rgbaBytes, IMemoryGroup destinationGroup) + private static void FromRgba64Bytes( + Configuration configuration, + Span rgbaBytes, + Buffer2DRegion destinationGroup) where TPixel : unmanaged, ImageSharp.PixelFormats.IPixel { - foreach (Memory m in destinationGroup) + for (int y = 0; y < destinationGroup.Height; y++) { - Span destBuffer = m.Span; + Span destBuffer = destinationGroup.DangerousGetRowSpan(y); PixelOperations.Instance.FromRgba64Bytes( configuration, rgbaBytes, destBuffer, destBuffer.Length); + rgbaBytes = rgbaBytes[(destBuffer.Length * 8)..]; } } diff --git a/tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs b/tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs index 3c74b48938..01d3b64891 100644 --- a/tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs +++ b/tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs @@ -277,6 +277,45 @@ public static Image CompareFirstFrameToReferenceOutput( return image; } + public static Image CompareDebugOutputToReferenceOutputMultiFrame( + this Image image, + ITestImageProvider provider, + ImageComparer comparer, + object testOutputDetails = null, + string extension = "png", + bool appendPixelTypeToFileName = true, + Func predicate = null) + where TPixel : unmanaged, IPixel + { + image.DebugSaveMultiFrame( + provider, + testOutputDetails, + extension, + appendPixelTypeToFileName, + predicate: predicate); + + using (Image debugImage = GetDebugOutputImageMultiFrame( + provider, + image.Frames.Count, + testOutputDetails, + extension, + appendPixelTypeToFileName, + predicate: predicate)) + + using (Image referenceImage = GetReferenceOutputImageMultiFrame( + provider, + image.Frames.Count, + testOutputDetails, + extension, + appendPixelTypeToFileName, + predicate: predicate)) + { + comparer.VerifySimilarity(referenceImage, debugImage); + } + + return image; + } + public static Image CompareToReferenceOutputMultiFrame( this Image image, ITestImageProvider provider, @@ -375,6 +414,54 @@ public static Image GetReferenceOutputImageMultiFrame( return result; } + public static Image GetDebugOutputImageMultiFrame( + this ITestImageProvider provider, + int frameCount, + object testOutputDetails = null, + string extension = "png", + bool appendPixelTypeToFileName = true, + Func predicate = null) + where TPixel : unmanaged, IPixel + { + (int Index, string FileName)[] frameFiles = provider.Utility.GetTestOutputFileNamesMultiFrame( + frameCount, + extension, + testOutputDetails, + appendPixelTypeToFileName, + predicate: predicate).ToArray(); + + List> temporaryFrameImages = new(); + + IImageDecoder decoder = TestEnvironment.GetReferenceDecoder(frameFiles[0].FileName); + + for (int i = 0; i < frameFiles.Length; i++) + { + string path = frameFiles[i].FileName; + if (!File.Exists(path)) + { + throw new FileNotFoundException("Reference output file missing: " + path); + } + + using FileStream stream = File.OpenRead(path); + Image tempImage = decoder.Decode(DecoderOptions.Default, stream); + temporaryFrameImages.Add(tempImage); + } + + Image firstTemp = temporaryFrameImages[0]; + + Image result = new(firstTemp.Width, firstTemp.Height); + + foreach (Image fi in temporaryFrameImages) + { + result.Frames.AddFrame(fi.Frames.RootFrame); + fi.Dispose(); + } + + // Remove the initial empty frame: + result.Frames.RemoveFrame(0); + return result; + } + public static IEnumerable GetReferenceOutputSimilarityReports( this Image image, ITestImageProvider provider, diff --git a/tests/Images/External/ReferenceOutput/AffineTransformTests/Transform_RotateScaleTranslate_Rgba32_TestPattern100x50_R(50)_S(1,1)_T(-20,-10).png b/tests/Images/External/ReferenceOutput/AffineTransformTests/Transform_RotateScaleTranslate_Rgba32_TestPattern100x50_R(50)_S(1,1)_T(-20,-10).png index 2ba0560e65..480c07da48 100644 --- a/tests/Images/External/ReferenceOutput/AffineTransformTests/Transform_RotateScaleTranslate_Rgba32_TestPattern100x50_R(50)_S(1,1)_T(-20,-10).png +++ b/tests/Images/External/ReferenceOutput/AffineTransformTests/Transform_RotateScaleTranslate_Rgba32_TestPattern100x50_R(50)_S(1,1)_T(-20,-10).png @@ -1,3 +1,3 @@ version https://git-lfs.github.com/spec/v1 -oid sha256:1b926c8335eca5530d8704739cecae0799cc651139daedb1f88ac85b0ee1bd5d -size 9484 +oid sha256:5ae57ca0658b1ffa7aca9031f4ec065ab5a9813fb8a9c5acd221526df6a4f729 +size 9747 diff --git 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