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time: Make TimeZoneRule blittable and avoid copies (#3361)

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* time: Make TimeZoneRule blittable and avoid copies

This drastically reduce overhead of using TimeZoneRule around the
codebase.

Effect on games is unknown

* Add missing Box type

* Ensure we clean the structure still

This doesn't perform any copies

* Address gdkchan's comments

* Simplify Box
This commit is contained in:
Mary 2022-06-24 19:04:57 +02:00 • committed by GitHub
parent 232b1012b0
commit 30ee70a9bc
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GPG key ID: 4AEE18F83AFDEB23
10 changed files with 157 additions and 147 deletions
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19
Ryujinx.HLE/HOS/Services/Time/StaticService/ITimeZoneServiceForPsc.cs
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@ -4,9 +4,12 @@ using Ryujinx.Cpu;
using Ryujinx.HLE.HOS.Services.Time.Clock;
using Ryujinx.HLE.HOS.Services.Time.TimeZone;
using Ryujinx.HLE.Utilities;
using Ryujinx.Memory;
using System;
using System.Diagnostics;
using System.IO;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
namespace Ryujinx.HLE.HOS.Services.Time.StaticService
{
@ -165,11 +168,11 @@ namespace Ryujinx.HLE.HOS.Services.Time.StaticService
using (MemoryStream timeZoneBinaryStream = new MemoryStream(temp))
{
result = _timeZoneManager.ParseTimeZoneRuleBinary(out TimeZoneRule timeZoneRule, timeZoneBinaryStream);
if (result == ResultCode.Success)
using (WritableRegion region = context.Memory.GetWritableRegion(timeZoneRuleBufferPosition, Unsafe.SizeOf<TimeZoneRule>()))
{
MemoryHelper.Write(context.Memory, timeZoneRuleBufferPosition, timeZoneRule);
ref TimeZoneRule rule = ref MemoryMarshal.Cast<byte, TimeZoneRule>(region.Memory.Span)[0];
result = _timeZoneManager.ParseTimeZoneRuleBinary(ref rule, timeZoneBinaryStream);
}
}
@ -199,9 +202,9 @@ namespace Ryujinx.HLE.HOS.Services.Time.StaticService
throw new InvalidOperationException();
}
TimeZoneRule rules = MemoryHelper.Read<TimeZoneRule>(context.Memory, bufferPosition);
ReadOnlySpan<TimeZoneRule> rules = MemoryMarshal.Cast<byte, TimeZoneRule>(context.Memory.GetSpan(bufferPosition, (int)bufferSize));
ResultCode resultCode = _timeZoneManager.ToCalendarTime(rules, posixTime, out CalendarInfo calendar);
ResultCode resultCode = _timeZoneManager.ToCalendarTime(in rules[0], posixTime, out CalendarInfo calendar);
if (resultCode == 0)
{
@ -244,9 +247,9 @@ namespace Ryujinx.HLE.HOS.Services.Time.StaticService
throw new InvalidOperationException();
}
TimeZoneRule rules = MemoryHelper.Read<TimeZoneRule>(context.Memory, inBufferPosition);
ReadOnlySpan<TimeZoneRule> rules = MemoryMarshal.Cast<byte, TimeZoneRule>(context.Memory.GetSpan(inBufferPosition, (int)inBufferSize));
ResultCode resultCode = _timeZoneManager.ToPosixTime(rules, calendarTime, out long posixTime);
ResultCode resultCode = _timeZoneManager.ToPosixTime(in rules[0], calendarTime, out long posixTime);
if (resultCode == ResultCode.Success)
{