ryujinx/ARMeilleure/Translation/PTC/PtcFormatter.cs
LDj3SNuD 90163087a0
PPTC vs. giant ExeFS. (#2168)
* PPTC vs. giant ExeFS.

* InternalVersion = 2168

* Add new heuristic algorithm for calculating the number of threads for parallel translations that also takes into account the user's free physical memory and not just the number of CPU cores.

* Nit.

* Add an outer Header structure and add the hashes for both this new structure and the existing "inner" Header structure.

* InternalVersion = 2169
2021-04-13 03:24:36 +02:00

169 lines
5.0 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace ARMeilleure.Translation.PTC
{
static class PtcFormatter
{
#region "Deserialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static Dictionary<TKey, TValue> DeserializeDictionary<TKey, TValue>(Stream stream, Func<Stream, TValue> valueFunc) where TKey : struct
{
Dictionary<TKey, TValue> dictionary = new();
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
TKey key = DeserializeStructure<TKey>(stream);
TValue value = valueFunc(stream);
dictionary.Add(key, value);
}
return dictionary;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static List<T> DeserializeList<T>(Stream stream) where T : struct
{
List<T> list = new();
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
T item = DeserializeStructure<T>(stream);
list.Add(item);
}
return list;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static T DeserializeStructure<T>(Stream stream) where T : struct
{
T structure = default(T);
Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
stream.Read(MemoryMarshal.AsBytes(spanT));
return structure;
}
#endregion
#region "GetSerializeSize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeDictionary<TKey, TValue>(Dictionary<TKey, TValue> dictionary, Func<TValue, int> valueFunc) where TKey : struct
{
int size = 0;
size += Unsafe.SizeOf<int>();
foreach ((_, TValue value) in dictionary)
{
size += Unsafe.SizeOf<TKey>();
size += valueFunc(value);
}
return size;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetSerializeSizeList<T>(List<T> list) where T : struct
{
int size = 0;
size += Unsafe.SizeOf<int>();
size += list.Count * Unsafe.SizeOf<T>();
return size;
}
#endregion
#region "Serialize"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeDictionary<TKey, TValue>(Stream stream, Dictionary<TKey, TValue> dictionary, Action<Stream, TValue> valueAction) where TKey : struct
{
SerializeStructure<int>(stream, dictionary.Count);
foreach ((TKey key, TValue value) in dictionary)
{
SerializeStructure<TKey>(stream, key);
valueAction(stream, value);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeList<T>(Stream stream, List<T> list) where T : struct
{
SerializeStructure<int>(stream, list.Count);
foreach (T item in list)
{
SerializeStructure<T>(stream, item);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SerializeStructure<T>(Stream stream, T structure) where T : struct
{
Span<T> spanT = MemoryMarshal.CreateSpan(ref structure, 1);
stream.Write(MemoryMarshal.AsBytes(spanT));
}
#endregion
#region "Extension methods"
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void ReadFrom<T>(this List<T[]> list, Stream stream) where T : struct
{
int count = DeserializeStructure<int>(stream);
for (int i = 0; i < count; i++)
{
int itemLength = DeserializeStructure<int>(stream);
T[] item = new T[itemLength];
stream.Read(MemoryMarshal.AsBytes(item.AsSpan()));
list.Add(item);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static long Length<T>(this List<T[]> list) where T : struct
{
long size = 0L;
size += Unsafe.SizeOf<int>();
foreach (T[] item in list)
{
size += Unsafe.SizeOf<int>();
size += item.Length;
}
return size;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void WriteTo<T>(this List<T[]> list, Stream stream) where T : struct
{
SerializeStructure<int>(stream, list.Count);
foreach (T[] item in list)
{
SerializeStructure<int>(stream, item.Length);
stream.Write(MemoryMarshal.AsBytes(item.AsSpan()));
}
}
#endregion
}
}