[NDIF] Use new source generator based big endian marshaller

Aaru.Images/NDIF/Read.cs

@@ -85,7 +85,7 @@ public sealed partial class Ndif
         {
             if(bcem.Length < 128) return ErrorNumber.InvalidArgument;
 
-            _header = Marshal.ByteArrayToStructureBigEndian<ChunkHeader>(bcem);
+            _header = Marshal.ByteArrayToStructureBigEndianGenerated<ChunkHeader>(bcem);
 
             AaruLogging.Debug(MODULE_NAME, "footer.type = {0}",   _header.version);
             AaruLogging.Debug(MODULE_NAME, "footer.driver = {0}", _header.driver);
@@ -115,12 +115,12 @@ public sealed partial class Ndif
             // Block chunks and headers
             _chunks = new Dictionary<ulong, BlockChunk>();
 
-            for(int i = 0; i < _header.chunks; i++)
+            for(var i = 0; i < _header.chunks; i++)
             {
                 // Obsolete read-only NDIF only prepended the header and then put the image without any kind of block references.
                 // So let's falsify a block chunk
                 var bChnk  = new BlockChunk();
-                byte[] sector = new byte[4];
+                var sector = new byte[4];
                 Array.Copy(bcem, 128 + 0 + i * 12, sector, 1, 3);
                 bChnk.sector = BigEndianBitConverter.ToUInt32(sector, 0);
                 bChnk.type   = bcem[128                                 + 3 + i * 12];
@@ -207,8 +207,8 @@ public sealed partial class Ndif
                 string release = null;
                 string pre     = null;
 
-                string major = $"{version.MajorVersion}";
+                var major = $"{version.MajorVersion}";
-                string minor = $".{version.MinorVersion / 10}";
+                var minor = $".{version.MinorVersion / 10}";
 
                 if(version.MinorVersion % 10 > 0) release = $".{version.MinorVersion % 10}";
 
@@ -307,7 +307,7 @@ public sealed partial class Ndif
         if(_sectorCache.TryGetValue(sectorAddress, out buffer)) return ErrorNumber.NoError;
 
         var   currentChunk     = new BlockChunk();
-        bool  chunkFound       = false;
+        var   chunkFound       = false;
         ulong chunkStartSector = 0;
 
         foreach(KeyValuePair<ulong, BlockChunk> kvp in _chunks.Where(kvp => sectorAddress >= kvp.Key))
@@ -327,7 +327,7 @@ public sealed partial class Ndif
         {
             if(!_chunkCache.TryGetValue(chunkStartSector, out byte[] data))
             {
-                byte[] cmpBuffer = new byte[currentChunk.length];
+                var cmpBuffer = new byte[currentChunk.length];
                 _imageStream.Seek(currentChunk.offset, SeekOrigin.Begin);
                 _imageStream.EnsureRead(cmpBuffer, 0, cmpBuffer.Length);
                 int realSize;
@@ -336,7 +336,7 @@ public sealed partial class Ndif
                 {
                     case CHUNK_TYPE_ADC:
                     {
-                        byte[] tmpBuffer = new byte[_bufferSize];
+                        var tmpBuffer = new byte[_bufferSize];
                         realSize = ADC.DecodeBuffer(cmpBuffer, tmpBuffer);
                         data     = new byte[realSize];
                         Array.Copy(tmpBuffer, 0, data, 0, realSize);
@@ -346,7 +346,7 @@ public sealed partial class Ndif
 
                     case CHUNK_TYPE_RLE:
                     {
-                        byte[] tmpBuffer = new byte[_bufferSize];
+                        var tmpBuffer = new byte[_bufferSize];
                         realSize = AppleRle.DecodeBuffer(cmpBuffer, tmpBuffer);
                         data     = new byte[realSize];
                         Array.Copy(tmpBuffer, 0, data, 0, realSize);

Aaru.Images/NDIF/Structs.cs

@@ -33,6 +33,7 @@
 using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Runtime.InteropServices;
+using Aaru.CommonTypes.Attributes;
 
 namespace Aaru.Images;
 
@@ -59,38 +60,39 @@ public sealed partial class Ndif
 #region Nested type: ChunkHeader
 
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    readonly struct ChunkHeader
+    [SwapEndian]
+    partial struct ChunkHeader
     {
         /// <summary>Version</summary>
-        public readonly short version;
+        public short version;
         /// <summary>Filesystem ID</summary>
-        public readonly short driver;
+        public short driver;
         /// <summary>Disk image name, Str63 (Pascal string)</summary>
         [MarshalAs(UnmanagedType.ByValArray, SizeConst = 64)]
-        public readonly byte[] name;
+        public byte[] name;
         /// <summary>Sectors in image</summary>
-        public readonly uint sectors;
+        public uint sectors;
         /// <summary>Maximum number of sectors per chunk</summary>
-        public readonly uint maxSectorsPerChunk;
+        public uint maxSectorsPerChunk;
         /// <summary>Offset to add to every chunk offset</summary>
-        public readonly uint dataOffset;
+        public uint dataOffset;
         /// <summary>CRC28 of whole image</summary>
-        public readonly uint crc;
+        public uint crc;
         /// <summary>Set to 1 if segmented</summary>
-        public readonly uint segmented;
+        public uint segmented;
         /// <summary>Unknown</summary>
-        public readonly uint p1;
+        public uint p1;
         /// <summary>Unknown</summary>
-        public readonly uint p2;
+        public uint p2;
         /// <summary>Unknown, spare?</summary>
         [MarshalAs(UnmanagedType.ByValArray, SizeConst = 5)]
-        public readonly uint[] unknown;
+        public uint[] unknown;
         /// <summary>Set to 1 by ShrinkWrap if image is encrypted</summary>
-        public readonly uint encrypted;
+        public uint encrypted;
         /// <summary>Set by ShrinkWrap if image is encrypted, value is the same for same password</summary>
-        public readonly uint hash;
+        public uint hash;
         /// <summary>How many chunks follow the header</summary>
-        public readonly uint chunks;
+        public uint chunks;
     }
 
 #endregion