BigEndianReader / Writer: Added ReadUInt24 / WriteUInt24 methods

Utilities/ByteUtils/BigEndianReader.cs

@@ -18,6 +18,17 @@ namespace Utilities
             return BigEndianConverter.ToUInt16(buffer, offset - 2);
         }
 
+        public static uint ReadUInt24(byte[] buffer, int offset)
+        {
+            return (uint)((buffer[offset + 0] << 16) | (buffer[offset + 1] << 8) | (buffer[offset + 2] << 0));
+        }
+
+        public static uint ReadUInt24(byte[] buffer, ref int offset)
+        {
+            offset += 3;
+            return ReadUInt24(buffer, offset - 3);
+        }
+
         public static int ReadInt32(byte[] buffer, ref int offset)
         {
             offset += 4;
@@ -62,6 +73,13 @@ namespace Utilities
             return BigEndianConverter.ToUInt16(buffer, 0);
         }
 
+        public static uint ReadUInt24(Stream stream)
+        {
+            byte[] buffer = new byte[4];
+            stream.Read(buffer, 1, 3);
+            return BigEndianConverter.ToUInt32(buffer, 0);
+        }
+
         public static int ReadInt32(Stream stream)
         {
             byte[] buffer = new byte[4];

Utilities/ByteUtils/BigEndianWriter.cs

@@ -30,6 +30,18 @@ namespace Utilities
             offset += 2;
         }
 
+        public static void WriteUInt24(byte[] buffer, int offset, uint value)
+        {
+            byte[] bytes = BigEndianConverter.GetBytes(value);
+            Array.Copy(bytes, 1, buffer, offset, 3);
+        }
+
+        public static void WriteUInt24(byte[] buffer, ref int offset, uint value)
+        {
+            WriteUInt24(buffer, offset, value);
+            offset += 3;
+        }
+
         public static void WriteInt32(byte[] buffer, int offset, int value)
         {
             byte[] bytes = BigEndianConverter.GetBytes(value);
@@ -102,6 +114,12 @@ namespace Utilities
             stream.Write(bytes, 0, bytes.Length);
         }
 
+        public static void WriteUInt24(Stream stream, uint value)
+        {
+            byte[] bytes = BigEndianConverter.GetBytes(value);
+            stream.Write(bytes, 1, 3);
+        }
+
         public static void WriteInt32(Stream stream, int value)
         {
             byte[] bytes = BigEndianConverter.GetBytes(value);