Move rowsPerBlock to base compression class

src/ImageSharp/Formats/Exr/Compression/Compressors/NoneExrCompressor.cs

@@ -17,9 +17,10 @@ internal class NoneExrCompressor : ExrBaseCompressor
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">Bytes per row block.</param>
     /// <param name="bytesPerRow">Bytes per pixel row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The witdh of one row in pixels.</param>
-    public NoneExrCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    public NoneExrCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(output, allocator, bytesPerBlock, bytesPerRow, width)
+        : base(output, allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
     }
 

src/ImageSharp/Formats/Exr/Compression/Compressors/ZipExrCompressor.cs

@@ -24,10 +24,11 @@ internal class ZipExrCompressor : ExrBaseCompressor
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The witdh of one row in pixels.</param>
     /// <param name="compressionLevel">The compression level for deflate compression.</param>
-    public ZipExrCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width, DeflateCompressionLevel compressionLevel)
+    public ZipExrCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width, DeflateCompressionLevel compressionLevel)
-        : base(output, allocator, bytesPerBlock, bytesPerRow, width)
+        : base(output, allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
         this.compressionLevel = compressionLevel;
         this.buffer = allocator.Allocate<byte>((int)bytesPerBlock);

src/ImageSharp/Formats/Exr/Compression/Decompressors/B44ExrCompression.cs

@@ -13,8 +13,6 @@ namespace SixLabors.ImageSharp.Formats.Exr.Compression.Decompressors;
 /// </summary>
 internal class B44ExrCompression : ExrBaseDecompressor
 {
-    private readonly uint rowsPerBlock;
-
     private readonly int channelCount;
 
     private readonly byte[] scratch = new byte[14];
@@ -29,13 +27,12 @@ internal class B44ExrCompression : ExrBaseDecompressor
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per pixel row block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
-    /// <param name="rowsPerBlock">The rows per block.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The width of a pixel row in pixels.</param>
     /// <param name="channelCount">The number of channels of the image.</param>
     public B44ExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width, int channelCount)
-        : base(allocator, bytesPerBlock, bytesPerRow, width)
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
-        this.rowsPerBlock = rowsPerBlock;
         this.channelCount = channelCount;
         this.tmpBuffer = allocator.Allocate<ushort>((int)(width * rowsPerBlock * channelCount));
     }
@@ -49,7 +46,7 @@ internal class B44ExrCompression : ExrBaseDecompressor
         int bytesLeft = (int)compressedBytes;
         for (int i = 0; i < this.channelCount && bytesLeft > 0; i++)
         {
-            for (int y = 0; y < this.rowsPerBlock; y += 4)
+            for (int y = 0; y < this.RowsPerBlock; y += 4)
             {
                 Span<ushort> row0 = decompressed.Slice(outputOffset, this.Width);
                 outputOffset += this.Width;
@@ -88,7 +85,7 @@ internal class B44ExrCompression : ExrBaseDecompressor
                     }
 
                     int n = x + 3 < this.Width ? 4 : this.Width - x;
-                    if (y + 3 < this.rowsPerBlock)
+                    if (y + 3 < this.RowsPerBlock)
                     {
                         this.s.AsSpan(0, n).CopyTo(row0[rowOffset..]);
                         this.s.AsSpan(4, n).CopyTo(row1[rowOffset..]);
@@ -98,12 +95,12 @@ internal class B44ExrCompression : ExrBaseDecompressor
                     else
                     {
                         this.s.AsSpan(0, n).CopyTo(row0[rowOffset..]);
-                        if (y + 1 < this.rowsPerBlock)
+                        if (y + 1 < this.RowsPerBlock)
                         {
                             this.s.AsSpan(4, n).CopyTo(row1[rowOffset..]);
                         }
 
-                        if (y + 2 < this.rowsPerBlock)
+                        if (y + 2 < this.RowsPerBlock)
                         {
                             this.s.AsSpan(8, n).CopyTo(row2[rowOffset..]);
                         }
@@ -122,8 +119,8 @@ internal class B44ExrCompression : ExrBaseDecompressor
         // Rearrange the decompressed data such that the data for each scan line form a contiguous block.
         int offsetDecompressed = 0;
         int offsetOutput = 0;
-        int blockSize = (int)(this.Width * this.rowsPerBlock);
+        int blockSize = (int)(this.Width * this.RowsPerBlock);
-        for (int y = 0; y < this.rowsPerBlock; y++)
+        for (int y = 0; y < this.RowsPerBlock; y++)
         {
             for (int i = 0; i < this.channelCount; i++)
             {

src/ImageSharp/Formats/Exr/Compression/Decompressors/NoneExrCompression.cs

@@ -17,9 +17,10 @@ internal class NoneExrCompression : ExrBaseDecompressor
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per pixel row block.</param>
     /// <param name="bytesPerRow">The bytes per pixel row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The number of pixels per row.</param>
-    public NoneExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    public NoneExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(allocator, bytesPerBlock, bytesPerRow, width)
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
     }
 

src/ImageSharp/Formats/Exr/Compression/Decompressors/Pxr24Compression.cs

@@ -2,9 +2,7 @@
 // Licensed under the Six Labors Split License.
 
 using System.Buffers;
-using System.IO.Compression;
 using System.Runtime.InteropServices;
-using SixLabors.ImageSharp.Compression.Zlib;
 using SixLabors.ImageSharp.Formats.Exr.Constants;
 using SixLabors.ImageSharp.IO;
 using SixLabors.ImageSharp.Memory;
@@ -18,8 +16,6 @@ internal class Pxr24Compression : ExrBaseDecompressor
 {
     private readonly IMemoryOwner<byte> tmpBuffer;
 
-    private readonly uint rowsPerBlock;
-
     private readonly int channelCount;
 
     private readonly ExrPixelType pixelType;
@@ -35,10 +31,9 @@ internal class Pxr24Compression : ExrBaseDecompressor
     /// <param name="channelCount">The number of channels for a pixel.</param>
     /// <param name="pixelType">The pixel type.</param>
     public Pxr24Compression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width, int channelCount, ExrPixelType pixelType)
-        : base(allocator, bytesPerBlock, bytesPerRow, width)
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
         this.tmpBuffer = allocator.Allocate<byte>((int)bytesPerBlock);
-        this.rowsPerBlock = rowsPerBlock;
         this.channelCount = channelCount;
         this.pixelType = pixelType;
     }
@@ -56,7 +51,7 @@ internal class Pxr24Compression : ExrBaseDecompressor
 
         int lastIn = 0;
         int outputOffset = 0;
-        for (int y = 0; y < this.rowsPerBlock; y++)
+        for (int y = 0; y < this.RowsPerBlock; y++)
         {
             for (int c = 0; c < this.channelCount; c++)
             {

src/ImageSharp/Formats/Exr/Compression/Decompressors/RunLengthExrCompression.cs

@@ -23,8 +23,8 @@ internal class RunLengthExrCompression : ExrBaseDecompressor
     /// <param name="bytesPerBlock">The bytes per pixel row block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
     /// <param name="width">The witdh of one row in pixels.</param>
-    public RunLengthExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    public RunLengthExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(allocator, bytesPerBlock, bytesPerRow, width) => this.tmpBuffer = allocator.Allocate<byte>((int)bytesPerBlock);
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width) => this.tmpBuffer = allocator.Allocate<byte>((int)bytesPerBlock);
 
     /// <inheritdoc/>
     public override void Decompress(BufferedReadStream stream, uint compressedBytes, Span<byte> buffer)

src/ImageSharp/Formats/Exr/Compression/Decompressors/ZipExrCompression.cs

@@ -2,8 +2,6 @@
 // Licensed under the Six Labors Split License.
 
 using System.Buffers;
-using System.IO.Compression;
-using SixLabors.ImageSharp.Compression.Zlib;
 using SixLabors.ImageSharp.IO;
 using SixLabors.ImageSharp.Memory;
 
@@ -22,9 +20,10 @@ internal class ZipExrCompression : ExrBaseDecompressor
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per pixel row block.</param>
     /// <param name="bytesPerRow">The bytes per pixel row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The witdh of one row in pixels.</param>
-    public ZipExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    public ZipExrCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(allocator, bytesPerBlock, bytesPerRow, width) => this.tmpBuffer = allocator.Allocate<byte>((int)bytesPerBlock);
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width) => this.tmpBuffer = allocator.Allocate<byte>((int)bytesPerBlock);
 
     /// <inheritdoc/>
     public override void Decompress(BufferedReadStream stream, uint compressedBytes, Span<byte> buffer)

src/ImageSharp/Formats/Exr/Compression/ExrBaseCompression.cs

@@ -18,12 +18,14 @@ internal abstract class ExrBaseCompression : IDisposable
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
+    /// <param name="rowsPerBlock">The number of pixel rows per block.</param>
     /// <param name="width">The number of pixels of a row.</param>
-    protected ExrBaseCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    protected ExrBaseCompression(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
     {
         this.Allocator = allocator;
         this.BytesPerBlock = bytesPerBlock;
         this.BytesPerRow = bytesPerRow;
+        this.RowsPerBlock = rowsPerBlock;
         this.Width = width;
     }
 
@@ -47,6 +49,11 @@ internal abstract class ExrBaseCompression : IDisposable
     /// </summary>
     public uint BytesPerBlock { get; }
 
+    /// <summary>
+    /// Gets the number of pixel rows per block.
+    /// </summary>
+    public uint RowsPerBlock { get; }
+
     /// <summary>
     /// Gets the image width.
     /// </summary>

src/ImageSharp/Formats/Exr/Compression/ExrBaseDecompressor.cs

@@ -19,9 +19,10 @@ internal abstract class ExrBaseDecompressor : ExrBaseCompression
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">The bytes per row block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The number of pixels per row.</param>
-    protected ExrBaseDecompressor(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    protected ExrBaseDecompressor(MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(allocator, bytesPerBlock, bytesPerRow, width)
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
     {
     }
 

src/ImageSharp/Formats/Exr/Compression/ExrCompressorFactory.cs

@@ -21,6 +21,7 @@ internal static class ExrCompressorFactory
     /// <param name="output">The output stream.</param>
     /// <param name="bytesPerBlock">The bytes per block.</param>
     /// <param name="bytesPerRow">The bytes per row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The witdh of one row in pixels.</param>
     /// <param name="compressionLevel">The deflate compression level.</param>
     /// <returns>A compressor for EXR image data.</returns>
@@ -30,12 +31,13 @@ internal static class ExrCompressorFactory
         Stream output,
         uint bytesPerBlock,
         uint bytesPerRow,
+        uint rowsPerBlock,
         int width,
         DeflateCompressionLevel compressionLevel = DeflateCompressionLevel.DefaultCompression) => method switch
         {
-            ExrCompression.None => new NoneExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, width),
+            ExrCompression.None => new NoneExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width),
-            ExrCompression.Zips => new ZipExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, width, compressionLevel),
+            ExrCompression.Zips => new ZipExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width, compressionLevel),
-            ExrCompression.Zip => new ZipExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, width, compressionLevel),
+            ExrCompression.Zip => new ZipExrCompressor(output, allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width, compressionLevel),
             _ => throw ExrThrowHelper.NotSupportedCompressor(method.ToString()),
         };
 }

src/ImageSharp/Formats/Exr/Compression/ExrDecompressorFactory.cs

@@ -22,6 +22,7 @@ internal static class ExrDecompressorFactory
     /// <param name="bytesPerRow">The bytes per row.</param>
     /// <param name="rowsPerBlock">The rows per block.</param>
     /// <param name="channelCount">The number of image channels.</param>
+    /// <param name="pixelType">The pixel type.</param>
     /// <returns>Decompressor for EXR image data.</returns>
     public static ExrBaseDecompressor Create(
         ExrCompression method,
@@ -33,10 +34,10 @@ internal static class ExrDecompressorFactory
         int channelCount,
         ExrPixelType pixelType) => method switch
         {
-            ExrCompression.None => new NoneExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, width),
+            ExrCompression.None => new NoneExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width),
-            ExrCompression.Zips => new ZipExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, width),
+            ExrCompression.Zips => new ZipExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width),
-            ExrCompression.Zip => new ZipExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, width),
+            ExrCompression.Zip => new ZipExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width),
-            ExrCompression.RunLengthEncoded => new RunLengthExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, width),
+            ExrCompression.RunLengthEncoded => new RunLengthExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width),
             ExrCompression.B44 => new B44ExrCompression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width, channelCount),
             ExrCompression.Pxr24 => new Pxr24Compression(memoryAllocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width, channelCount, pixelType),
             _ => throw ExrThrowHelper.NotSupportedDecompressor(nameof(method)),

src/ImageSharp/Formats/Exr/ExrBaseCompressor.cs

@@ -14,9 +14,10 @@ internal abstract class ExrBaseCompressor : ExrBaseCompression
     /// <param name="allocator">The memory allocator.</param>
     /// <param name="bytesPerBlock">Bytes per row block.</param>
     /// <param name="bytesPerRow">Bytes per pixel row.</param>
+    /// <param name="rowsPerBlock">The pixel rows per block.</param>
     /// <param name="width">The number of pixels per row.</param>
-    protected ExrBaseCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, int width)
+    protected ExrBaseCompressor(Stream output, MemoryAllocator allocator, uint bytesPerBlock, uint bytesPerRow, uint rowsPerBlock, int width)
-        : base(allocator, bytesPerBlock, bytesPerRow, width)
+        : base(allocator, bytesPerBlock, bytesPerRow, rowsPerBlock, width)
         => this.Output = output;
 
     /// <summary>

src/ImageSharp/Formats/Exr/ExrEncoderCore.cs

@@ -181,7 +181,7 @@ internal sealed class ExrEncoderCore
         Span<float> blueBuffer = rgbBuffer.GetSpan().Slice(width * 2, width);
         Span<float> alphaBuffer = rgbBuffer.GetSpan().Slice(width * 3, width);
 
-        using ExrBaseCompressor compressor = ExrCompressorFactory.Create(compression, this.memoryAllocator, stream, bytesPerBlock, bytesPerRow, width);
+        using ExrBaseCompressor compressor = ExrCompressorFactory.Create(compression, this.memoryAllocator, stream, bytesPerBlock, bytesPerRow, rowsPerBlock, width);
 
         ulong[] rowOffsets = new ulong[height];
         for (uint y = 0; y < height; y += rowsPerBlock)
@@ -273,7 +273,7 @@ internal sealed class ExrEncoderCore
         Span<uint> blueBuffer = rgbBuffer.GetSpan().Slice(width * 2, width);
         Span<uint> alphaBuffer = rgbBuffer.GetSpan().Slice(width * 3, width);
 
-        using ExrBaseCompressor compressor = ExrCompressorFactory.Create(compression, this.memoryAllocator, stream, bytesPerBlock, bytesPerRow, width);
+        using ExrBaseCompressor compressor = ExrCompressorFactory.Create(compression, this.memoryAllocator, stream, bytesPerBlock, bytesPerRow, rowsPerBlock, width);
 
         Rgba128 rgb = default;
         ulong[] rowOffsets = new ulong[height];