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Optimize string memory usage. Use Spans and StringBuilders where possible (#3933)

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* Optimize string memory usage. Use ReadOnlySpan<char> and StringBuilder where possible.

* Fix copypaste error

* Code generator review fixes

* Use if statement instead of switch

* Code style fixes

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>

* Another code style fix

* Styling fix

Co-authored-by: Mary-nyan <thog@protonmail.com>

* Styling fix

Co-authored-by: gdkchan <gab.dark.100@gmail.com>

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>
Co-authored-by: Mary-nyan <thog@protonmail.com>
Co-authored-by: gdkchan <gab.dark.100@gmail.com>
This commit is contained in:
Andrey Sukharev
2023-01-19 01:25:16 +03:00
committed by GitHub
parent f449895e6d
commit ae4324032a
19 changed files with 118 additions and 81 deletions
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2
Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/InlineResponses.cs
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@ -24,7 +24,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
for (int maxStr = text.Length; maxStr >= 0; maxStr--)
{
// This loop will probably will run only once.
bytes = encoding.GetBytes(text.Substring(0, maxStr));
bytes = encoding.GetBytes(text, 0, maxStr);
if (bytes.Length <= maxSize)
{
break;

39
Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/SoftwareKeyboardRendererBase.cs
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@ -292,20 +292,35 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
_logoPosition = new Point(logoPositionX, logoPositionY);
}
private RectangleF MeasureString(string text, Font font)
private static RectangleF MeasureString(string text, Font font)
{
RendererOptions options = new RendererOptions(font);
FontRectangle rectangle = TextMeasurer.Measure(text == "" ? " " : text, options);
if (text == "")
{
return new RectangleF(0, rectangle.Y, 0, rectangle.Height);
FontRectangle emptyRectangle = TextMeasurer.Measure(" ", options);
return new RectangleF(0, emptyRectangle.Y, 0, emptyRectangle.Height);
}
else
FontRectangle rectangle = TextMeasurer.Measure(text, options);
return new RectangleF(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
}
private static RectangleF MeasureString(ReadOnlySpan<char> text, Font font)
{
RendererOptions options = new RendererOptions(font);
if (text == "")
{
return new RectangleF(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
FontRectangle emptyRectangle = TextMeasurer.Measure(" ", options);
return new RectangleF(0, emptyRectangle.Y, 0, emptyRectangle.Height);
}
FontRectangle rectangle = TextMeasurer.Measure(text, options);
return new RectangleF(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
}
private void DrawTextBox(IImageProcessingContext context, SoftwareKeyboardUiState state)
@ -354,8 +369,8 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
cursorBrush = _selectionBoxBrush;
cursorPen = _selectionBoxPen;
string textUntilBegin = state.InputText.Substring(0, state.CursorBegin);
string textUntilEnd = state.InputText.Substring(0, state.CursorEnd);
ReadOnlySpan<char> textUntilBegin = state.InputText.AsSpan(0, state.CursorBegin);
ReadOnlySpan<char> textUntilEnd = state.InputText.AsSpan(0, state.CursorEnd);
var selectionBeginRectangle = MeasureString(textUntilBegin, _inputTextFont);
var selectionEndRectangle = MeasureString(textUntilEnd , _inputTextFont);
@ -374,9 +389,9 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
{
// Show the blinking cursor.
int cursorBegin = Math.Min(state.InputText.Length, state.CursorBegin);
string textUntilCursor = state.InputText.Substring(0, cursorBegin);
var cursorTextRectangle = MeasureString(textUntilCursor, _inputTextFont);
int cursorBegin = Math.Min(state.InputText.Length, state.CursorBegin);
ReadOnlySpan<char> textUntilCursor = state.InputText.AsSpan(0, cursorBegin);
var cursorTextRectangle = MeasureString(textUntilCursor, _inputTextFont);
cursorVisible = true;
cursorPositionXLeft = inputTextX + cursorTextRectangle.Width + cursorTextRectangle.X;
@ -387,7 +402,7 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
if (state.CursorBegin < state.InputText.Length)
{
textUntilCursor = state.InputText.Substring(0, cursorBegin + 1);
textUntilCursor = state.InputText.AsSpan(0, cursorBegin + 1);
cursorTextRectangle = MeasureString(textUntilCursor, _inputTextFont);
cursorPositionXRight = inputTextX + cursorTextRectangle.Width + cursorTextRectangle.X;
}

3
Ryujinx.HLE/HOS/Diagnostics/Demangler/Ast/IntegerLiteral.cs
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@ -1,4 +1,5 @@
using System.IO;
using System;
namespace Ryujinx.HLE.HOS.Diagnostics.Demangler.Ast
{
@ -25,7 +26,7 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler.Ast
if (_literalValue[0] == 'n')
{
writer.Write("-");
writer.Write(_literalValue.Substring(1));
writer.Write(_literalValue.AsSpan(1));
}
else
{

26
Ryujinx.HLE/HOS/Diagnostics/Demangler/Demangler.cs
View File

@ -32,9 +32,9 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
private bool ConsumeIf(string toConsume)
{
string mangledPart = Mangled.Substring(_position);
var mangledPart = Mangled.AsSpan(_position);
if (mangledPart.StartsWith(toConsume))
if (mangledPart.StartsWith(toConsume.AsSpan()))
{
_position += toConsume.Length;
@ -44,14 +44,14 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
return false;
}
private string PeekString(int offset = 0, int length = 1)
private ReadOnlySpan<char> PeekString(int offset = 0, int length = 1)
{
if (_position + offset >= length)
{
return null;
}
return Mangled.Substring(_position + offset, length);
return Mangled.AsSpan(_position + offset, length);
}
private char Peek(int offset = 0)
@ -101,8 +101,8 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
private int ParseSeqId()
{
string part = Mangled.Substring(_position);
int seqIdLen = 0;
ReadOnlySpan<char> part = Mangled.AsSpan(_position);
int seqIdLen = 0;
for (; seqIdLen < part.Length; seqIdLen++)
{
@ -114,7 +114,7 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
_position += seqIdLen;
return FromBase36(part.Substring(0, seqIdLen));
return FromBase36(new string(part[..seqIdLen]));
}
// <substitution> ::= S <seq-id> _
@ -900,8 +900,8 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
private int ParsePositiveNumber()
{
string part = Mangled.Substring(_position);
int numberLength = 0;
ReadOnlySpan<char> part = Mangled.AsSpan(_position);
int numberLength = 0;
for (; numberLength < part.Length; numberLength++)
{
@ -918,7 +918,7 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
return -1;
}
return int.Parse(part.AsSpan(0, numberLength));
return int.Parse(part[..numberLength]);
}
private string ParseNumber(bool isSigned = false)
@ -933,8 +933,8 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
return null;
}
string part = Mangled.Substring(_position);
int numberLength = 0;
ReadOnlySpan<char> part = Mangled.AsSpan(_position);
int numberLength = 0;
for (; numberLength < part.Length; numberLength++)
{
@ -946,7 +946,7 @@ namespace Ryujinx.HLE.HOS.Diagnostics.Demangler
_position += numberLength;
return part.Substring(0, numberLength);
return new string(part[..numberLength]);
}
// <source-name> ::= <positive length number> <identifier>

5
Ryujinx.HLE/HOS/Services/Account/Acc/Types/UserId.cs
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@ -1,5 +1,6 @@
using LibHac.Account;
using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
@ -35,8 +36,8 @@ namespace Ryujinx.HLE.HOS.Services.Account.Acc
throw new ArgumentException("Invalid Hex value!", nameof(hex));
}
Low = Convert.ToInt64(hex.Substring(16), 16);
High = Convert.ToInt64(hex.Substring(0, 16), 16);
Low = long.Parse(hex.AsSpan(16), NumberStyles.HexNumber);
High = long.Parse(hex.AsSpan(0, 16), NumberStyles.HexNumber);
}
public void Write(BinaryWriter binaryWriter)

3
Ryujinx.HLE/HOS/Services/Sockets/Nsd/IManager.cs
View File

@ -4,6 +4,7 @@ using Ryujinx.HLE.Exceptions;
using Ryujinx.HLE.HOS.Services.Settings;
using Ryujinx.HLE.HOS.Services.Sockets.Nsd.Manager;
using Ryujinx.HLE.HOS.Services.Sockets.Nsd.Types;
using System;
using System.Text;
namespace Ryujinx.HLE.HOS.Services.Sockets.Nsd
@ -370,7 +371,7 @@ namespace Ryujinx.HLE.HOS.Services.Sockets.Nsd
return result;
}
byte environmentType = identifier.Substring(0, 2) switch
byte environmentType = identifier.AsSpan(0, 2) switch
{
"lp" => (byte)ApplicationServerEnvironmentType.Lp,
"sd" => (byte)ApplicationServerEnvironmentType.Sd,