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Ryujinx/Ryujinx.Graphics.Device/SizeCalculator.cs
gdkchan 4d02a2d2c0
New NVDEC and VIC implementation (#1384)
* Initial NVDEC and VIC implementation

* Update FFmpeg.AutoGen to 4.3.0

* Add nvdec dependencies for Windows

* Unify some VP9 structures

* Rename VP9 structure fields

* Improvements to Video API

* XML docs for Common.Memory

* Remove now unused or redundant overloads from MemoryAccessor

* NVDEC UV surface read/write scalar paths

* Add FIXME comments about hacky things/stuff that will need to be fixed in the future

* Cleaned up VP9 memory allocation

* Remove some debug logs

* Rename some VP9 structs

* Remove unused struct

* No need to compile Ryujinx.Graphics.Host1x with unsafe anymore

* Name AsyncWorkQueue threads to make debugging easier

* Make Vp9PictureInfo a ref struct

* LayoutConverter no longer needs the depth argument (broken by rebase)

* Pooling of VP9 buffers, plus fix a memory leak on VP9

* Really wish VS could rename projects properly...

* Address feedback

* Remove using

* Catch OperationCanceledException

* Add licensing informations

* Add THIRDPARTY.md to release too

Co-authored-by: Thog <me@thog.eu>
2020-07-12 05:07:01 +02:00

63 lines
2.1 KiB
C#

using System;
using System.Reflection;
namespace Ryujinx.Graphics.Device
{
static class SizeCalculator
{
public static int SizeOf(Type type)
{
// Is type a enum type?
if (type.IsEnum)
{
type = type.GetEnumUnderlyingType();
}
// Is type a pointer type?
if (type.IsPointer || type == typeof(IntPtr) || type == typeof(UIntPtr))
{
return IntPtr.Size;
}
// Is type a struct type?
if (type.IsValueType && !type.IsPrimitive)
{
// Check if the struct has a explicit size, if so, return that.
if (type.StructLayoutAttribute.Size != 0)
{
return type.StructLayoutAttribute.Size;
}
// Otherwise we calculate the sum of the sizes of all fields.
int size = 0;
var fields = type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
for (int fieldIndex = 0; fieldIndex < fields.Length; fieldIndex++)
{
size += SizeOf(fields[fieldIndex].FieldType);
}
return size;
}
// Primitive types.
return (Type.GetTypeCode(type)) switch
{
TypeCode.SByte => sizeof(sbyte),
TypeCode.Byte => sizeof(byte),
TypeCode.Int16 => sizeof(short),
TypeCode.UInt16 => sizeof(ushort),
TypeCode.Int32 => sizeof(int),
TypeCode.UInt32 => sizeof(uint),
TypeCode.Int64 => sizeof(long),
TypeCode.UInt64 => sizeof(ulong),
TypeCode.Char => sizeof(char),
TypeCode.Single => sizeof(float),
TypeCode.Double => sizeof(double),
TypeCode.Decimal => sizeof(decimal),
TypeCode.Boolean => sizeof(bool),
_ => throw new ArgumentException($"Length for type \"{type.Name}\" is unknown.")
};
}
}
}