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Update SARC.cs

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Remove ReadFile method, add ToBytes method, add WriteFiles method. FromBytes uses a byte array instead of memory stream.
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Chev 2021-01-16 22:37:29 -08:00
parent a9639a43b3
commit 250a309071
1 changed files with 62 additions and 21 deletions
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83
botw-toolset/IO/SARC/SARC.cs
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@ -37,15 +37,15 @@ namespace BOTWToolset.IO.SARC
public byte[][] Files;
/// <summary>
/// Gets a <see cref="SARC"/> from a data stream.
/// Gets a <see cref="SARC"/> from an array of bytes.
/// </summary>
/// <param name="stream">Data stream to get <see cref="SARC"/> info from.</param>
/// <param name="stream">Array of bytes to get <see cref="SARC"/> info from.</param>
/// <returns><see cref="SARC"/> with the stream's data.</returns>
public static SARC FromBytes(Stream stream)
public static SARC FromBytes(byte[] bytes)
{
SARC s = new SARC();
using (var r = new BinaryReaderBig(stream))
using (var r = new BinaryReaderBig(new MemoryStream(bytes)))
{
//SARC header
s.Magic = new string(r.ReadChars(4));
@ -159,26 +159,69 @@ namespace BOTWToolset.IO.SARC
return s;
}
public static SARC ReadFile(string file)
{
if (File.Exists(file))
{
return FromBytes(File.Open(file, FileMode.Open));
}
else
{
throw new FileNotFoundException("Cannot find SARC file to read.");
}
}
public static byte[] GetBytes(SARC sarc)
/// <summary>
/// Gets an array of bytes from a <see cref="SARC"/>.
/// </summary>
/// <param name="sarc"><see cref="SARC"/> to convert to bytes.</param>
/// <returns>byte[] containg the <see cref="SARC"/> data.</returns>
public static byte[] ToBytes(SARC sarc)
{
// TODO: Make this an actual function
List<byte> bytes = new List<byte>();
// SARC header
bytes.AddRange(new byte[] { 0x53, 0x41, 0x52, 0x43 }); // SARC magic header
bytes.AddRange(new byte[] { 0x00, 0x14 }); // Header length, always 0x14
bytes.AddRange(new byte[] { 0xFE, 0xFF }); // 0xFEFF - big endian, 0xFFFE - little endian
bytes.AddRange(BitConverter.GetBytes(sarc.FileSize).Reverse()); // File size of the entire SARC, including headers
bytes.AddRange(BitConverter.GetBytes(sarc.DataOffset).Reverse()); // Beginning of data offset
bytes.AddRange(new byte[] { 0x01, 0x00 }); // Version number, always 0x0100
bytes.AddRange(new byte[] { 0x00, 0x00 }); // Reserved
// SFAT header
bytes.AddRange(new byte[] { 0x53, 0x46, 0x41, 0x54 }); // SFAT magic header
bytes.AddRange(new byte[] { 0x00, 0x0C }); // Header length, always 0xC
bytes.AddRange(BitConverter.GetBytes(sarc.SFAT.NodeCount).Reverse());
bytes.AddRange(new byte[] { 0x00, 0x00, 0x00, 0x65 }); // Hash key, always 0x65
// SFAT node structures
foreach (SFATNode node in sarc.SFAT.Nodes)
{
bytes.AddRange(BitConverter.GetBytes(node.FileNameHash).Reverse());
bytes.AddRange(BitConverter.GetBytes(node.FileAttributes).Reverse());
bytes.AddRange(BitConverter.GetBytes(node.NodeFileDataBegin).Reverse());
bytes.AddRange(BitConverter.GetBytes(node.NodeFileDataEnd).Reverse());
}
// SFNT header
bytes.AddRange(new byte[] { 0x53, 0x46, 0x4E, 0x54 }); // SFNT magic header
bytes.AddRange(new byte[] { 0x00, 0x08 }); // Header length, always 0x8
bytes.AddRange(new byte[] { 0x00, 0x00 }); // Reserved
foreach (var filename in sarc.SFNT.FileNames)
{
var extra = filename.Length % 4; // Number of characters not in a 4-byte-aligned segment
for (int i = 0; i < filename.Length + (4 - extra); i++)
{
if (i < filename.Length) // If this is a valid char
bytes.Add((byte)filename[i]);
else // If not, add null
bytes.Add(0x00);
}
}
foreach (var file_bytes in sarc.Files)
bytes.AddRange(file_bytes);
return bytes.ToArray();
}
/// <summary>
/// Writes a <see cref="SARC"/>'s unpackaged files to a folder.
/// </summary>
/// <param name="sarc"><see cref="SARC"/> to get file data from.</param>
/// <param name="folder">Folder to write the unpackaged files to.</param>
public static void WriteFiles(SARC sarc, string folder)
{
//TODO: Finish this function
@ -191,10 +234,8 @@ namespace BOTWToolset.IO.SARC
// Get combined path (folder + file name)
var file_path = Path.Combine(folder, file_name);
using (var r = new BinaryWriterBig(File.OpenWrite(file_path), System.Text.Encoding.UTF8))
{
}
// Write bytes to file
File.WriteAllBytes(file_path, files[i]);
}
}
}