diff --git a/src/ImageSharp/Formats/Tiff/Compression/Decompressors/DeflateTiffCompression.cs b/src/ImageSharp/Formats/Tiff/Compression/Decompressors/DeflateTiffCompression.cs
index 2188913bc3..bb57853d53 100644
--- a/src/ImageSharp/Formats/Tiff/Compression/Decompressors/DeflateTiffCompression.cs
+++ b/src/ImageSharp/Formats/Tiff/Compression/Decompressors/DeflateTiffCompression.cs
@@ -5,8 +5,8 @@
using System.IO.Compression;
using SixLabors.ImageSharp.Compression.Zlib;
-using SixLabors.ImageSharp.Formats.Tiff.Compression;
using SixLabors.ImageSharp.Formats.Tiff.Constants;
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
using SixLabors.ImageSharp.IO;
using SixLabors.ImageSharp.Memory;
@@ -20,16 +20,24 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors
///
internal class DeflateTiffCompression : TiffBaseDecompressor
{
+ private readonly bool isBigEndian;
+
+ private readonly TiffColorType colorType;
+
///
/// Initializes a new instance of the class.
///
/// The memoryAllocator to use for buffer allocations.
/// The image width.
/// The bits used per pixel.
+ /// The color type of the pixel data.
/// The tiff predictor used.
- public DeflateTiffCompression(MemoryAllocator memoryAllocator, int width, int bitsPerPixel, TiffPredictor predictor)
+ /// if set to true decodes the pixel data as big endian, otherwise as little endian.
+ public DeflateTiffCompression(MemoryAllocator memoryAllocator, int width, int bitsPerPixel, TiffColorType colorType, TiffPredictor predictor, bool isBigEndian)
: base(memoryAllocator, width, bitsPerPixel, predictor)
{
+ this.colorType = colorType;
+ this.isBigEndian = isBigEndian;
}
///
@@ -62,7 +70,7 @@ protected override void Decompress(BufferedReadStream stream, int byteCount, Spa
if (this.Predictor == TiffPredictor.Horizontal)
{
- HorizontalPredictor.Undo(buffer, this.Width, this.BitsPerPixel);
+ HorizontalPredictor.Undo(buffer, this.Width, this.colorType, this.isBigEndian);
}
}
diff --git a/src/ImageSharp/Formats/Tiff/Compression/Decompressors/LzwTiffCompression.cs b/src/ImageSharp/Formats/Tiff/Compression/Decompressors/LzwTiffCompression.cs
index 7e75dd4f05..2e89396075 100644
--- a/src/ImageSharp/Formats/Tiff/Compression/Decompressors/LzwTiffCompression.cs
+++ b/src/ImageSharp/Formats/Tiff/Compression/Decompressors/LzwTiffCompression.cs
@@ -3,6 +3,7 @@
using System;
using SixLabors.ImageSharp.Formats.Tiff.Constants;
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
using SixLabors.ImageSharp.IO;
using SixLabors.ImageSharp.Memory;
@@ -13,16 +14,24 @@ namespace SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors
///
internal class LzwTiffCompression : TiffBaseDecompressor
{
+ private readonly bool isBigEndian;
+
+ private readonly TiffColorType colorType;
+
///
/// Initializes a new instance of the class.
///
/// The memoryAllocator to use for buffer allocations.
/// The image width.
/// The bits used per pixel.
+ /// The color type of the pixel data.
/// The tiff predictor used.
- public LzwTiffCompression(MemoryAllocator memoryAllocator, int width, int bitsPerPixel, TiffPredictor predictor)
+ /// if set to true decodes the pixel data as big endian, otherwise as little endian.
+ public LzwTiffCompression(MemoryAllocator memoryAllocator, int width, int bitsPerPixel, TiffColorType colorType, TiffPredictor predictor, bool isBigEndian)
: base(memoryAllocator, width, bitsPerPixel, predictor)
{
+ this.colorType = colorType;
+ this.isBigEndian = isBigEndian;
}
///
@@ -33,7 +42,7 @@ protected override void Decompress(BufferedReadStream stream, int byteCount, Spa
if (this.Predictor == TiffPredictor.Horizontal)
{
- HorizontalPredictor.Undo(buffer, this.Width, this.BitsPerPixel);
+ HorizontalPredictor.Undo(buffer, this.Width, this.colorType, this.isBigEndian);
}
}
diff --git a/src/ImageSharp/Formats/Tiff/Compression/HorizontalPredictor.cs b/src/ImageSharp/Formats/Tiff/Compression/HorizontalPredictor.cs
index ae2f17dbb5..e2dbc6ca99 100644
--- a/src/ImageSharp/Formats/Tiff/Compression/HorizontalPredictor.cs
+++ b/src/ImageSharp/Formats/Tiff/Compression/HorizontalPredictor.cs
@@ -2,9 +2,11 @@
// Licensed under the Apache License, Version 2.0.
using System;
+using System.Buffers.Binary;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
-
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
+using SixLabors.ImageSharp.Formats.Tiff.Utils;
using SixLabors.ImageSharp.PixelFormats;
namespace SixLabors.ImageSharp.Formats.Tiff.Compression
@@ -19,16 +21,34 @@ internal static class HorizontalPredictor
///
/// Buffer with decompressed pixel data.
/// The width of the image or strip.
- /// Bits per pixel.
- public static void Undo(Span pixelBytes, int width, int bitsPerPixel)
+ /// The color type of the pixel data.
+ /// if set to true decodes the pixel data as big endian, otherwise as little endian.
+ public static void Undo(Span pixelBytes, int width, TiffColorType colorType, bool isBigEndian)
{
- if (bitsPerPixel == 8)
- {
- Undo8Bit(pixelBytes, width);
- }
- else if (bitsPerPixel == 24)
+ switch (colorType)
{
- Undo24Bit(pixelBytes, width);
+ case TiffColorType.BlackIsZero8:
+ case TiffColorType.WhiteIsZero8:
+ case TiffColorType.PaletteColor:
+ UndoGray8Bit(pixelBytes, width);
+ break;
+ case TiffColorType.BlackIsZero16:
+ case TiffColorType.WhiteIsZero16:
+ UndoGray16Bit(pixelBytes, width, isBigEndian);
+ break;
+ case TiffColorType.BlackIsZero32:
+ case TiffColorType.WhiteIsZero32:
+ UndoGray32Bit(pixelBytes, width, isBigEndian);
+ break;
+ case TiffColorType.Rgb888:
+ UndoRgb24Bit(pixelBytes, width);
+ break;
+ case TiffColorType.Rgb161616:
+ UndoRgb48Bit(pixelBytes, width, isBigEndian);
+ break;
+ case TiffColorType.Rgb323232:
+ UndoRgb96Bit(pixelBytes, width, isBigEndian);
+ break;
}
}
@@ -93,7 +113,7 @@ private static void ApplyHorizontalPrediction8Bit(Span rows, int width)
}
}
- private static void Undo8Bit(Span pixelBytes, int width)
+ private static void UndoGray8Bit(Span pixelBytes, int width)
{
int rowBytesCount = width;
int height = pixelBytes.Length / rowBytesCount;
@@ -110,7 +130,95 @@ private static void Undo8Bit(Span pixelBytes, int width)
}
}
- private static void Undo24Bit(Span pixelBytes, int width)
+ private static void UndoGray16Bit(Span pixelBytes, int width, bool isBigEndian)
+ {
+ int rowBytesCount = width * 2;
+ int height = pixelBytes.Length / rowBytesCount;
+ if (isBigEndian)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ ushort pixelValue = TiffUtils.ConvertToUShortBigEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 2);
+ ushort diff = TiffUtils.ConvertToUShortBigEndian(rowSpan);
+ pixelValue += diff;
+ BinaryPrimitives.WriteUInt16BigEndian(rowSpan, pixelValue);
+ offset += 2;
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ ushort pixelValue = TiffUtils.ConvertToUShortLittleEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 2);
+ ushort diff = TiffUtils.ConvertToUShortLittleEndian(rowSpan);
+ pixelValue += diff;
+ BinaryPrimitives.WriteUInt16LittleEndian(rowSpan, pixelValue);
+ offset += 2;
+ }
+ }
+ }
+ }
+
+ private static void UndoGray32Bit(Span pixelBytes, int width, bool isBigEndian)
+ {
+ int rowBytesCount = width * 4;
+ int height = pixelBytes.Length / rowBytesCount;
+ if (isBigEndian)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ uint pixelValue = TiffUtils.ConvertToUIntBigEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 4);
+ uint diff = TiffUtils.ConvertToUIntBigEndian(rowSpan);
+ pixelValue += diff;
+ BinaryPrimitives.WriteUInt32BigEndian(rowSpan, pixelValue);
+ offset += 4;
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ uint pixelValue = TiffUtils.ConvertToUIntLittleEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 4);
+ uint diff = TiffUtils.ConvertToUIntLittleEndian(rowSpan);
+ pixelValue += diff;
+ BinaryPrimitives.WriteUInt32LittleEndian(rowSpan, pixelValue);
+ offset += 4;
+ }
+ }
+ }
+ }
+
+ private static void UndoRgb24Bit(Span pixelBytes, int width)
{
int rowBytesCount = width * 3;
int height = pixelBytes.Length / rowBytesCount;
@@ -134,5 +242,157 @@ private static void Undo24Bit(Span pixelBytes, int width)
}
}
}
+
+ private static void UndoRgb48Bit(Span pixelBytes, int width, bool isBigEndian)
+ {
+ int rowBytesCount = width * 6;
+ int height = pixelBytes.Length / rowBytesCount;
+ if (isBigEndian)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ ushort r = TiffUtils.ConvertToUShortBigEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+ ushort g = TiffUtils.ConvertToUShortBigEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+ ushort b = TiffUtils.ConvertToUShortBigEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaR = TiffUtils.ConvertToUShortBigEndian(rowSpan);
+ r += deltaR;
+ BinaryPrimitives.WriteUInt16BigEndian(rowSpan, r);
+ offset += 2;
+
+ rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaG = TiffUtils.ConvertToUShortBigEndian(rowSpan);
+ g += deltaG;
+ BinaryPrimitives.WriteUInt16BigEndian(rowSpan, g);
+ offset += 2;
+
+ rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaB = TiffUtils.ConvertToUShortBigEndian(rowSpan);
+ b += deltaB;
+ BinaryPrimitives.WriteUInt16BigEndian(rowSpan, b);
+ offset += 2;
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ ushort r = TiffUtils.ConvertToUShortLittleEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+ ushort g = TiffUtils.ConvertToUShortLittleEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+ ushort b = TiffUtils.ConvertToUShortLittleEndian(rowBytes.Slice(offset, 2));
+ offset += 2;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaR = TiffUtils.ConvertToUShortLittleEndian(rowSpan);
+ r += deltaR;
+ BinaryPrimitives.WriteUInt16LittleEndian(rowSpan, r);
+ offset += 2;
+
+ rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaG = TiffUtils.ConvertToUShortLittleEndian(rowSpan);
+ g += deltaG;
+ BinaryPrimitives.WriteUInt16LittleEndian(rowSpan, g);
+ offset += 2;
+
+ rowSpan = rowBytes.Slice(offset, 2);
+ ushort deltaB = TiffUtils.ConvertToUShortLittleEndian(rowSpan);
+ b += deltaB;
+ BinaryPrimitives.WriteUInt16LittleEndian(rowSpan, b);
+ offset += 2;
+ }
+ }
+ }
+ }
+
+ private static void UndoRgb96Bit(Span pixelBytes, int width, bool isBigEndian)
+ {
+ int rowBytesCount = width * 12;
+ int height = pixelBytes.Length / rowBytesCount;
+ if (isBigEndian)
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ uint r = TiffUtils.ConvertToUIntBigEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+ uint g = TiffUtils.ConvertToUIntBigEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+ uint b = TiffUtils.ConvertToUIntBigEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaR = TiffUtils.ConvertToUIntBigEndian(rowSpan);
+ r += deltaR;
+ BinaryPrimitives.WriteUInt32BigEndian(rowSpan, r);
+ offset += 4;
+
+ rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaG = TiffUtils.ConvertToUIntBigEndian(rowSpan);
+ g += deltaG;
+ BinaryPrimitives.WriteUInt32BigEndian(rowSpan, g);
+ offset += 4;
+
+ rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaB = TiffUtils.ConvertToUIntBigEndian(rowSpan);
+ b += deltaB;
+ BinaryPrimitives.WriteUInt32BigEndian(rowSpan, b);
+ offset += 4;
+ }
+ }
+ }
+ else
+ {
+ for (int y = 0; y < height; y++)
+ {
+ int offset = 0;
+ Span rowBytes = pixelBytes.Slice(y * rowBytesCount, rowBytesCount);
+ uint r = TiffUtils.ConvertToUIntLittleEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+ uint g = TiffUtils.ConvertToUIntLittleEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+ uint b = TiffUtils.ConvertToUIntLittleEndian(rowBytes.Slice(offset, 4));
+ offset += 4;
+
+ for (int x = 1; x < width; x++)
+ {
+ Span rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaR = TiffUtils.ConvertToUIntLittleEndian(rowSpan);
+ r += deltaR;
+ BinaryPrimitives.WriteUInt32LittleEndian(rowSpan, r);
+ offset += 4;
+
+ rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaG = TiffUtils.ConvertToUIntLittleEndian(rowSpan);
+ g += deltaG;
+ BinaryPrimitives.WriteUInt32LittleEndian(rowSpan, g);
+ offset += 4;
+
+ rowSpan = rowBytes.Slice(offset, 4);
+ uint deltaB = TiffUtils.ConvertToUIntLittleEndian(rowSpan);
+ b += deltaB;
+ BinaryPrimitives.WriteUInt32LittleEndian(rowSpan, b);
+ offset += 4;
+ }
+ }
+ }
+ }
}
}
diff --git a/src/ImageSharp/Formats/Tiff/Compression/TiffDecompressorsFactory.cs b/src/ImageSharp/Formats/Tiff/Compression/TiffDecompressorsFactory.cs
index ff04edab70..b1562223aa 100644
--- a/src/ImageSharp/Formats/Tiff/Compression/TiffDecompressorsFactory.cs
+++ b/src/ImageSharp/Formats/Tiff/Compression/TiffDecompressorsFactory.cs
@@ -3,6 +3,7 @@
using SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors;
using SixLabors.ImageSharp.Formats.Tiff.Constants;
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
using SixLabors.ImageSharp.Memory;
namespace SixLabors.ImageSharp.Formats.Tiff.Compression
@@ -15,9 +16,11 @@ public static TiffBaseDecompressor Create(
TiffPhotometricInterpretation photometricInterpretation,
int width,
int bitsPerPixel,
+ TiffColorType colorType,
TiffPredictor predictor,
FaxCompressionOptions faxOptions,
- TiffFillOrder fillOrder)
+ TiffFillOrder fillOrder,
+ ByteOrder byteOrder)
{
switch (method)
{
@@ -33,11 +36,11 @@ public static TiffBaseDecompressor Create(
case TiffDecoderCompressionType.Deflate:
DebugGuard.IsTrue(faxOptions == FaxCompressionOptions.None, "No fax compression options are expected");
- return new DeflateTiffCompression(allocator, width, bitsPerPixel, predictor);
+ return new DeflateTiffCompression(allocator, width, bitsPerPixel, colorType, predictor, byteOrder == ByteOrder.BigEndian);
case TiffDecoderCompressionType.Lzw:
DebugGuard.IsTrue(faxOptions == FaxCompressionOptions.None, "No fax compression options are expected");
- return new LzwTiffCompression(allocator, width, bitsPerPixel, predictor);
+ return new LzwTiffCompression(allocator, width, bitsPerPixel, colorType, predictor, byteOrder == ByteOrder.BigEndian);
case TiffDecoderCompressionType.T4:
DebugGuard.IsTrue(predictor == TiffPredictor.None, "Predictor should only be used with lzw or deflate compression");
diff --git a/src/ImageSharp/Formats/Tiff/TiffDecoderCore.cs b/src/ImageSharp/Formats/Tiff/TiffDecoderCore.cs
index 065f9d72f2..ce8e58798e 100644
--- a/src/ImageSharp/Formats/Tiff/TiffDecoderCore.cs
+++ b/src/ImageSharp/Formats/Tiff/TiffDecoderCore.cs
@@ -280,9 +280,11 @@ private void DecodeStripsPlanar(ImageFrame frame, int rowsPerStr
this.PhotometricInterpretation,
frame.Width,
bitsPerPixel,
+ this.ColorType,
this.Predictor,
this.FaxCompressionOptions,
- this.FillOrder);
+ this.FillOrder,
+ this.byteOrder);
TiffBasePlanarColorDecoder colorDecoder = TiffColorDecoderFactory.CreatePlanar(this.ColorType, this.BitsPerSample, this.ColorMap, this.byteOrder);
@@ -331,9 +333,11 @@ private void DecodeStripsChunky(ImageFrame frame, int rowsPerStr
this.PhotometricInterpretation,
frame.Width,
bitsPerPixel,
+ this.ColorType,
this.Predictor,
this.FaxCompressionOptions,
- this.FillOrder);
+ this.FillOrder,
+ this.byteOrder);
TiffBaseColorDecoder colorDecoder = TiffColorDecoderFactory.Create(this.Configuration, this.ColorType, this.BitsPerSample, this.ColorMap, this.byteOrder);
diff --git a/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs
index 782a504d58..c93a2018df 100644
--- a/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Tiff/Compression/DeflateTiffCompressionTests.cs
@@ -5,6 +5,7 @@
using SixLabors.ImageSharp.Compression.Zlib;
using SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors;
using SixLabors.ImageSharp.Formats.Tiff.Constants;
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
using SixLabors.ImageSharp.IO;
using Xunit;
@@ -26,7 +27,7 @@ public void Compress_Decompress_Roundtrip_Works(byte[] data)
{
var buffer = new byte[data.Length];
- using var decompressor = new DeflateTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffPredictor.None);
+ using var decompressor = new DeflateTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false);
decompressor.Decompress(stream, 0, (uint)stream.Length, buffer);
diff --git a/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs
index bf585e9c8f..5ea75d9a84 100644
--- a/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Tiff/Compression/LzwTiffCompressionTests.cs
@@ -5,6 +5,7 @@
using SixLabors.ImageSharp.Formats.Tiff.Compression.Compressors;
using SixLabors.ImageSharp.Formats.Tiff.Compression.Decompressors;
using SixLabors.ImageSharp.Formats.Tiff.Constants;
+using SixLabors.ImageSharp.Formats.Tiff.PhotometricInterpretation;
using SixLabors.ImageSharp.IO;
using Xunit;
@@ -38,7 +39,7 @@ public void Compress_Decompress_Roundtrip_Works(byte[] data)
using BufferedReadStream stream = CreateCompressedStream(data);
var buffer = new byte[data.Length];
- using var decompressor = new LzwTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffPredictor.None);
+ using var decompressor = new LzwTiffCompression(Configuration.Default.MemoryAllocator, 10, 8, TiffColorType.BlackIsZero8, TiffPredictor.None, false);
decompressor.Decompress(stream, 0, (uint)stream.Length, buffer);
Assert.Equal(data, buffer);
diff --git a/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs b/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs
index 9494a853d3..176f8c1ae6 100644
--- a/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs
+++ b/tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs
@@ -161,6 +161,12 @@ public void TiffDecoder_CanDecode_14Bit_Gray(TestImageProvider p
public void TiffDecoder_CanDecode_16Bit_Gray(TestImageProvider provider)
where TPixel : unmanaged, IPixel => TestTiffDecoder(provider);
+ [Theory]
+ [WithFile(Flower16BitGrayPredictorBigEndian, PixelTypes.Rgba32)]
+ [WithFile(Flower16BitGrayPredictorLittleEndian, PixelTypes.Rgba32)]
+ public void TiffDecoder_CanDecode_16Bit_Gray_WithPredictor(TestImageProvider provider)
+ where TPixel : unmanaged, IPixel => TestTiffDecoder(provider);
+
[Theory]
[WithFile(Flower24BitGray, PixelTypes.Rgba32)]
[WithFile(Flower24BitGrayLittleEndian, PixelTypes.Rgba32)]
@@ -191,6 +197,17 @@ public void TiffDecoder_CanDecode_32Bit_Gray(TestImageProvider p
image.DebugSave(provider);
}
+ [Theory]
+ [WithFile(Flower32BitGrayPredictorBigEndian, PixelTypes.Rgba32)]
+ [WithFile(Flower32BitGrayPredictorLittleEndian, PixelTypes.Rgba32)]
+ public void TiffDecoder_CanDecode_32Bit_Gray_WithPredictor(TestImageProvider provider)
+ where TPixel : unmanaged, IPixel
+ {
+ // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+ using Image image = provider.GetImage();
+ image.DebugSave(provider);
+ }
+
[Theory]
[WithFile(FlowerRgb121212Contiguous, PixelTypes.Rgba32)]
public void TiffDecoder_CanDecode_36Bit(TestImageProvider provider)
@@ -211,6 +228,12 @@ public void TiffDecoder_CanDecode_42Bit(TestImageProvider provid
public void TiffDecoder_CanDecode_48Bit(TestImageProvider provider)
where TPixel : unmanaged, IPixel => TestTiffDecoder(provider);
+ [Theory]
+ [WithFile(FlowerRgb161616PredictorBigEndian, PixelTypes.Rgba32)]
+ [WithFile(FlowerRgb161616PredictorLittleEndian, PixelTypes.Rgba32)]
+ public void TiffDecoder_CanDecode_48Bit_WithPredictor(TestImageProvider provider)
+ where TPixel : unmanaged, IPixel => TestTiffDecoder(provider);
+
[Theory]
[WithFile(FlowerRgb242424Contiguous, PixelTypes.Rgba32)]
[WithFile(FlowerRgb242424ContiguousLittleEndian, PixelTypes.Rgba32)]
@@ -248,6 +271,17 @@ public void TiffDecoder_CanDecode_Float_96Bit(TestImageProvider
image.DebugSave(provider);
}
+ [Theory]
+ [WithFile(FlowerRgb323232PredictorBigEndian, PixelTypes.Rgba32)]
+ [WithFile(FlowerRgb323232PredictorLittleEndian, PixelTypes.Rgba32)]
+ public void TiffDecoder_CanDecode_96Bit_WithPredictor(TestImageProvider provider)
+ where TPixel : unmanaged, IPixel
+ {
+ // Note: because the MagickReferenceDecoder fails to load the image, we only debug save them.
+ using Image image = provider.GetImage();
+ image.DebugSave(provider);
+ }
+
[Theory]
[WithFile(Flower32BitFloatGray, PixelTypes.Rgba32)]
[WithFile(Flower32BitFloatGrayLittleEndian, PixelTypes.Rgba32)]
diff --git a/tests/ImageSharp.Tests/TestImages.cs b/tests/ImageSharp.Tests/TestImages.cs
index 8042f5e825..a41150a61d 100644
--- a/tests/ImageSharp.Tests/TestImages.cs
+++ b/tests/ImageSharp.Tests/TestImages.cs
@@ -571,12 +571,16 @@ public static class Tiff
public const string FlowerRgb323232ContiguousLittleEndian = "Tiff/flower-rgb-contig-32_lsb.tiff";
public const string FlowerRgb323232Planar = "Tiff/flower-rgb-planar-32.tiff";
public const string FlowerRgb323232PlanarLittleEndian = "Tiff/flower-rgb-planar-32_lsb.tiff";
+ public const string FlowerRgb323232PredictorBigEndian = "Tiff/flower-rgb-contig-32_msb_zip_predictor.tiff";
+ public const string FlowerRgb323232PredictorLittleEndian = "Tiff/flower-rgb-contig-32_lsb_zip_predictor.tiff";
public const string FlowerRgb242424Planar = "Tiff/flower-rgb-planar-24.tiff";
public const string FlowerRgb242424PlanarLittleEndian = "Tiff/flower-rgb-planar-24_lsb.tiff";
public const string FlowerRgb242424Contiguous = "Tiff/flower-rgb-contig-24.tiff";
public const string FlowerRgb242424ContiguousLittleEndian = "Tiff/flower-rgb-contig-24_lsb.tiff";
public const string FlowerRgb161616Contiguous = "Tiff/flower-rgb-contig-16.tiff";
public const string FlowerRgb161616ContiguousLittleEndian = "Tiff/flower-rgb-contig-16_lsb.tiff";
+ public const string FlowerRgb161616PredictorBigEndian = "Tiff/flower-rgb-contig-16_msb_zip_predictor.tiff";
+ public const string FlowerRgb161616PredictorLittleEndian = "Tiff/flower-rgb-contig-16_lsb_zip_predictor.tiff";
public const string FlowerRgb161616Planar = "Tiff/flower-rgb-planar-16.tiff";
public const string FlowerRgb161616PlanarLittleEndian = "Tiff/flower-rgb-planar-16_lsb.tiff";
public const string FlowerRgb141414Contiguous = "Tiff/flower-rgb-contig-14.tiff";
@@ -602,6 +606,8 @@ public static class Tiff
public const string Flower16BitGray = "Tiff/flower-minisblack-16.tiff";
public const string Flower16BitGrayLittleEndian = "Tiff/flower-minisblack-16_lsb.tiff";
public const string Flower16BitGrayMinIsWhiteLittleEndian = "Tiff/flower-miniswhite-16_lsb.tiff";
+ public const string Flower16BitGrayPredictorBigEndian = "Tiff/flower-minisblack-16_msb_lzw_predictor.tiff";
+ public const string Flower16BitGrayPredictorLittleEndian = "Tiff/flower-minisblack-16_lsb_lzw_predictor.tiff";
public const string Flower16BitGrayMinIsWhiteBigEndian = "Tiff/flower-miniswhite-16_msb.tiff";
public const string Flower24BitGray = "Tiff/flower-minisblack-24_msb.tiff";
public const string Flower24BitGrayLittleEndian = "Tiff/flower-minisblack-24_lsb.tiff";
@@ -613,6 +619,8 @@ public static class Tiff
public const string Flower32BitFloatGrayMinIsWhiteLittleEndian = "Tiff/flower-miniswhite-float32_lsb.tiff";
public const string Flower32BitGrayMinIsWhite = "Tiff/flower-miniswhite-32_msb.tiff";
public const string Flower32BitGrayMinIsWhiteLittleEndian = "Tiff/flower-miniswhite-32_lsb.tiff";
+ public const string Flower32BitGrayPredictorBigEndian = "Tiff/flower-minisblack-32_msb_deflate_predictor.tiff";
+ public const string Flower32BitGrayPredictorLittleEndian = "Tiff/flower-minisblack-32_lsb_deflate_predictor.tiff";
public const string Issues1716Rgb161616BitLittleEndian = "Tiff/Issues/Issue1716.tiff";
diff --git a/tests/Images/Input/Tiff/flower-minisblack-16_lsb_lzw_predictor.tiff b/tests/Images/Input/Tiff/flower-minisblack-16_lsb_lzw_predictor.tiff
new file mode 100644
index 0000000000..e28ccda483
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-minisblack-16_lsb_lzw_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:263da6b84862af1bc23f2631e648b1a629b5571b253c82f3ea64f44e9b7b1fe6
+size 8478
diff --git a/tests/Images/Input/Tiff/flower-minisblack-16_msb_lzw_predictor.tiff b/tests/Images/Input/Tiff/flower-minisblack-16_msb_lzw_predictor.tiff
new file mode 100644
index 0000000000..144f96887b
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-minisblack-16_msb_lzw_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e67ac19cbdeb8585b204ee958edc7679a92c2b415a1a2c6051f14fe2966f933c
+size 8504
diff --git a/tests/Images/Input/Tiff/flower-minisblack-32_lsb_deflate_predictor.tiff b/tests/Images/Input/Tiff/flower-minisblack-32_lsb_deflate_predictor.tiff
new file mode 100644
index 0000000000..2dc9e8092a
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-minisblack-32_lsb_deflate_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d5e7998cc985ef11ab9da410f18dcfb6b9a3169fb1ec01f9e61aa38d8ee4cfb6
+size 12704
diff --git a/tests/Images/Input/Tiff/flower-minisblack-32_msb_deflate_predictor.tiff b/tests/Images/Input/Tiff/flower-minisblack-32_msb_deflate_predictor.tiff
new file mode 100644
index 0000000000..f87c74c721
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-minisblack-32_msb_deflate_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:630e7f46655b6e61c4de7d56946a3a9225db68f776f9062ff2d5372547cc7c02
+size 12704
diff --git a/tests/Images/Input/Tiff/flower-rgb-contig-16_lsb_zip_predictor.tiff b/tests/Images/Input/Tiff/flower-rgb-contig-16_lsb_zip_predictor.tiff
new file mode 100644
index 0000000000..69fe133f8c
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-rgb-contig-16_lsb_zip_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb465c21009def345d192319ba13ba2e1e537310eec3ab2cce680f0d111a4f18
+size 18256
diff --git a/tests/Images/Input/Tiff/flower-rgb-contig-16_msb_zip_predictor.tiff b/tests/Images/Input/Tiff/flower-rgb-contig-16_msb_zip_predictor.tiff
new file mode 100644
index 0000000000..231de2eaad
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-rgb-contig-16_msb_zip_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c098beb9c8f250e9d4f6eb66a3a42f3852ad3ca86aabbdbacfa897d93ec8bc0d
+size 18254
diff --git a/tests/Images/Input/Tiff/flower-rgb-contig-32_lsb_zip_predictor.tiff b/tests/Images/Input/Tiff/flower-rgb-contig-32_lsb_zip_predictor.tiff
new file mode 100644
index 0000000000..ca3fee9da5
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-rgb-contig-32_lsb_zip_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3ed60ad91ea70db01789f9dd37745d8a5ab86f72b98637cf2007b4e28a71976f
+size 37632
diff --git a/tests/Images/Input/Tiff/flower-rgb-contig-32_msb_zip_predictor.tiff b/tests/Images/Input/Tiff/flower-rgb-contig-32_msb_zip_predictor.tiff
new file mode 100644
index 0000000000..07a1ae74f7
--- /dev/null
+++ b/tests/Images/Input/Tiff/flower-rgb-contig-32_msb_zip_predictor.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1086c2ec568c5c3c2b08fcc66691fab017eb6fad109373a1dadd2e12fae86bc8
+size 37630