using Ryujinx.HLE.Exceptions; using System.IO; using System.Text; namespace Ryujinx.HLE.Loaders.Npdm { // https://github.com/SciresM/hactool/blob/master/npdm.c // https://github.com/SciresM/hactool/blob/master/npdm.h // http://switchbrew.org/index.php?title=NPDM public class Npdm { private const int MetaMagic = 'M' << 0 | 'E' << 8 | 'T' << 16 | 'A' << 24; public byte ProcessFlags { get; private set; } public bool Is64Bit { get; private set; } public byte MainThreadPriority { get; private set; } public byte DefaultCpuId { get; private set; } public int PersonalMmHeapSize { get; private set; } public int Version { get; private set; } public int MainThreadStackSize { get; private set; } public string TitleName { get; set; } public byte[] ProductCode { get; private set; } public Aci0 Aci0 { get; private set; } public Acid Acid { get; private set; } /// The stream doesn't contain valid NPDM data. /// The FsAccessHeader.ContentOwnerId section is not implemented. /// The stream does not support reading, is , or is already closed. /// An error occured while reading bytes from the stream. /// The end of the stream is reached. /// The stream is closed. /// An I/O error occurred. public Npdm(Stream stream) { BinaryReader reader = new(stream); if (reader.ReadInt32() != MetaMagic) { throw new InvalidNpdmException("NPDM Stream doesn't contain NPDM file!"); } reader.ReadInt64(); ProcessFlags = reader.ReadByte(); Is64Bit = (ProcessFlags & 1) != 0; reader.ReadByte(); MainThreadPriority = reader.ReadByte(); DefaultCpuId = reader.ReadByte(); reader.ReadInt32(); PersonalMmHeapSize = reader.ReadInt32(); Version = reader.ReadInt32(); MainThreadStackSize = reader.ReadInt32(); byte[] tempTitleName = reader.ReadBytes(0x10); TitleName = Encoding.UTF8.GetString(tempTitleName, 0, tempTitleName.Length).Trim('\0'); ProductCode = reader.ReadBytes(0x10); stream.Seek(0x30, SeekOrigin.Current); int aci0Offset = reader.ReadInt32(); #pragma warning disable IDE0059 // Remove unnecessary value assignment int aci0Size = reader.ReadInt32(); int acidOffset = reader.ReadInt32(); int acidSize = reader.ReadInt32(); #pragma warning restore IDE0059 Aci0 = new Aci0(stream, aci0Offset); Acid = new Acid(stream, acidOffset); } } }