Ryujinx/Spv.Generator/LiteralString.cs
riperiperi 12dec18f39 Reduce allocations for Spir-v serialization
Passes BinaryWriter instead of the stream to Write and WriteOperand

- Removes creation of BinaryWriter for each instruction
- Removes allocations for literal string
2022-06-17 22:42:43 +01:00

51 lines
1.2 KiB
C#

using System;
using System.IO;
using System.Text;
namespace Spv.Generator
{
public class LiteralString : Operand, IEquatable<LiteralString>
{
public OperandType Type => OperandType.String;
private string _value;
public LiteralString(string value)
{
_value = value;
}
public ushort WordCount => (ushort)(_value.Length / 4 + 1);
public void WriteOperand(BinaryWriter writer)
{
writer.Write(_value.AsSpan());
int paddingSize = 4 - (Encoding.ASCII.GetByteCount(_value) % 4);
Span<byte> padding = stackalloc byte[paddingSize];
writer.Write(padding);
}
public override bool Equals(object obj)
{
return obj is LiteralString literalString && Equals(literalString);
}
public bool Equals(LiteralString cmpObj)
{
return Type == cmpObj.Type && _value.Equals(cmpObj._value);
}
public override int GetHashCode()
{
return HashCode.Combine(Type, _value);
}
public bool Equals(Operand obj)
{
return obj is LiteralString literalString && Equals(literalString);
}
}
}