From bbc14f4ff529925a9e937168cc1ad54a6489c03e Mon Sep 17 00:00:00 2001
From: Ynse Hoornenborg <github@ynse.nl>
Date: Wed, 21 Jun 2023 18:48:19 +0200
Subject: [PATCH] Row boundary on decode

---
 src/ImageSharp/Formats/Pbm/BinaryDecoder.cs | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/src/ImageSharp/Formats/Pbm/BinaryDecoder.cs b/src/ImageSharp/Formats/Pbm/BinaryDecoder.cs
index d49633575d..449548f3d2 100644
--- a/src/ImageSharp/Formats/Pbm/BinaryDecoder.cs
+++ b/src/ImageSharp/Formats/Pbm/BinaryDecoder.cs
@@ -152,7 +152,6 @@ internal class BinaryDecoder
     {
         int width = pixels.Width;
         int height = pixels.Height;
-        int startBit = 0;
         MemoryAllocator allocator = configuration.MemoryAllocator;
         using IMemoryOwner<L8> row = allocator.Allocate<L8>(width);
         Span<L8> rowSpan = row.GetSpan();
@@ -162,23 +161,11 @@ internal class BinaryDecoder
             for (int x = 0; x < width;)
             {
                 int raw = stream.ReadByte();
-                int bit = startBit;
-                startBit = 0;
-                for (; bit < 8; bit++)
+                for (int bit = 0; bit < 8; bit++)
                 {
                     bool bitValue = (raw & (0x80 >> bit)) != 0;
                     rowSpan[x] = bitValue ? black : white;
                     x++;
-                    if (x == width)
-                    {
-                        startBit = (bit + 1) & 7; // Round off to below 8.
-                        if (startBit != 0)
-                        {
-                            stream.Seek(-1, System.IO.SeekOrigin.Current);
-                        }
-
-                        break;
-                    }
                 }
             }