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using LibHac.Common;
using LibHac.Fs;
using LibHac.Fs.Fsa;
using LibHac.Loader;
using LibHac.Ns;
using LibHac.Tools.FsSystem;
using Ryujinx.Common.Configuration;
using Ryujinx.Common.Logging;
using Ryujinx.HLE.Loaders.Executables;
using Ryujinx.Memory;
using System.Linq;
using static Ryujinx.HLE.HOS.ModLoader;
namespace Ryujinx.HLE.Loaders.Processes.Extensions
{
static class FileSystemExtensions
{
public static MetaLoader GetNpdm(this IFileSystem fileSystem)
{
MetaLoader metaLoader = new();
if (fileSystem == null || !fileSystem.FileExists(ProcessConst.MainNpdmPath))
{
Logger.Warning?.Print(LogClass.Loader, "NPDM file not found, using default values!");
metaLoader.LoadDefault();
}
else
{
metaLoader.LoadFromFile(fileSystem);
}
return metaLoader;
}
public static ProcessResult Load(this IFileSystem exeFs, Switch device, BlitStruct<ApplicationControlProperty> nacpData, MetaLoader metaLoader, bool isHomebrew = false)
{
ulong programId = metaLoader.GetProgramId();
// Replace the whole ExeFs partition by the modded one.
if (device.Configuration.VirtualFileSystem.ModLoader.ReplaceExefsPartition(programId, ref exeFs))
{
metaLoader = null;
}
// Reload the MetaLoader in case of ExeFs partition replacement.
metaLoader ??= exeFs.GetNpdm();
NsoExecutable[] nsoExecutables = new NsoExecutable[ProcessConst.ExeFsPrefixes.Length];
for (int i = 0; i < nsoExecutables.Length; i++)
{
string name = ProcessConst.ExeFsPrefixes[i];
if (!exeFs.FileExists($"/{name}"))
{
continue; // File doesn't exist, skip.
}
Logger.Info?.Print(LogClass.Loader, $"Loading {name}...");
using var nsoFile = new UniqueRef<IFile>();
exeFs.OpenFile(ref nsoFile.Ref, $"/{name}".ToU8Span(), OpenMode.Read).ThrowIfFailure();
nsoExecutables[i] = new NsoExecutable(nsoFile.Release().AsStorage(), name);
}
// ExeFs file replacements.
ModLoadResult modLoadResult = device.Configuration.VirtualFileSystem.ModLoader.ApplyExefsMods(programId, nsoExecutables);
// Take the Npdm from mods if present.
if (modLoadResult.Npdm != null)
{
metaLoader = modLoadResult.Npdm;
}
// Collect the Nsos, ignoring ones that aren't used.
nsoExecutables = nsoExecutables.Where(x => x != null).ToArray();
// Apply Nsos patches.
device.Configuration.VirtualFileSystem.ModLoader.ApplyNsoPatches(programId, nsoExecutables);
// Don't use PTC if ExeFS files have been replaced.
bool enablePtc = device.System.EnablePtc && !modLoadResult.Modified;
if (!enablePtc)
{
Logger.Warning?.Print(LogClass.Ptc, $"Detected unsupported ExeFs modifications. PTC disabled.");
}
// We allow it for nx-hbloader because it can be used to launch homebrew.
bool allowCodeMemoryForJit = programId == 0x010000000000100DUL || isHomebrew;
string programName = "";
if (!isHomebrew && programId > 0x010000000000FFFF)
{
programName = nacpData.Value.Title[(int)device.System.State.DesiredTitleLanguage].NameString.ToString();
if (string.IsNullOrWhiteSpace(programName))
{
programName = nacpData.Value.Title.ItemsRo.ToArray().FirstOrDefault(x => x.Name[0] != 0).NameString.ToString();
}
}
// Initialize GPU.
Graphics.Gpu.GraphicsConfig.TitleId = $"{programId:x16}";
device.Gpu.HostInitalized.Set();
if (!MemoryBlock.SupportsFlags(MemoryAllocationFlags.ViewCompatible))
{
device.Configuration.MemoryManagerMode = MemoryManagerMode.SoftwarePageTable;
}
ProcessResult processResult = ProcessLoaderHelper.LoadNsos(
device,
device.System.KernelContext,
metaLoader,
nacpData.Value,
enablePtc,
allowCodeMemoryForJit,
programName,
metaLoader.GetProgramId(),
null,
nsoExecutables);
// TODO: This should be stored using ProcessId instead.
device.System.LibHacHorizonManager.ArpIReader.ApplicationId = new LibHac.ApplicationId(metaLoader.GetProgramId());
return processResult;
}
}
}
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