ryujinx/Ryujinx.Common/SystemInterop/WindowsMultimediaTimerResolution.cs
Isaac Marovitz 0fbcd630bc
Replace DllImport usage with LibraryImport (#4084)
* Replace usage of `DllImport` with `LibraryImport`

* Mark methods as `partial`

* Marshalling

* More `partial` & marshalling

* More `partial` and marshalling

* More partial and marshalling

* Update GdiPlusHelper to LibraryImport

* Unicorn

* More Partial

* Marshal

* Specify EntryPoint

* Specify EntryPoint

* Change GlobalMemoryStatusEx to LibraryImport

* Change RegisterClassEx to LibraryImport

* Define EntryPoints

* Update Ryujinx.Ava/Ui/Controls/Win32NativeInterop.cs

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

* Update Ryujinx.Graphics.Nvdec.FFmpeg/Native/FFmpegApi.cs

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

* Move return mashal

* Remove calling convention specification

* Remove calling conventions

* Update Ryujinx.Common/SystemInfo/WindowsSystemInfo.cs

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

* Update Ryujinx/Modules/Updater/Updater.cs

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

* Update Ryujinx.Ava/Modules/Updater/Updater.cs

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

Co-authored-by: TSRBerry <20988865+TSRBerry@users.noreply.github.com>
Co-authored-by: Mary-nyan <thog@protonmail.com>
2022-12-15 18:07:31 +01:00

114 lines
3.6 KiB
C#

using Ryujinx.Common.Logging;
using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace Ryujinx.Common.SystemInterop
{
/// <summary>
/// Handle Windows Multimedia timer resolution.
/// </summary>
[SupportedOSPlatform("windows")]
public partial class WindowsMultimediaTimerResolution : IDisposable
{
[StructLayout(LayoutKind.Sequential)]
public struct TimeCaps
{
public uint wPeriodMin;
public uint wPeriodMax;
};
[LibraryImport("winmm.dll", EntryPoint = "timeGetDevCaps", SetLastError = true)]
private static partial uint TimeGetDevCaps(ref TimeCaps timeCaps, uint sizeTimeCaps);
[LibraryImport("winmm.dll", EntryPoint = "timeBeginPeriod")]
private static partial uint TimeBeginPeriod(uint uMilliseconds);
[LibraryImport("winmm.dll", EntryPoint = "timeEndPeriod")]
private static partial uint TimeEndPeriod(uint uMilliseconds);
private uint _targetResolutionInMilliseconds;
private bool _isActive;
/// <summary>
/// Create a new <see cref="WindowsMultimediaTimerResolution"/> and activate the given resolution.
/// </summary>
/// <param name="targetResolutionInMilliseconds"></param>
public WindowsMultimediaTimerResolution(uint targetResolutionInMilliseconds)
{
_targetResolutionInMilliseconds = targetResolutionInMilliseconds;
EnsureResolutionSupport();
Activate();
}
private void EnsureResolutionSupport()
{
TimeCaps timeCaps = default;
uint result = TimeGetDevCaps(ref timeCaps, (uint)Unsafe.SizeOf<TimeCaps>());
if (result != 0)
{
Logger.Notice.Print(LogClass.Application, $"timeGetDevCaps failed with result: {result}");
}
else
{
uint supportedTargetResolutionInMilliseconds = Math.Min(Math.Max(timeCaps.wPeriodMin, _targetResolutionInMilliseconds), timeCaps.wPeriodMax);
if (supportedTargetResolutionInMilliseconds != _targetResolutionInMilliseconds)
{
Logger.Notice.Print(LogClass.Application, $"Target resolution isn't supported by OS, using closest resolution: {supportedTargetResolutionInMilliseconds}ms");
_targetResolutionInMilliseconds = supportedTargetResolutionInMilliseconds;
}
}
}
private void Activate()
{
uint result = TimeBeginPeriod(_targetResolutionInMilliseconds);
if (result != 0)
{
Logger.Notice.Print(LogClass.Application, $"timeBeginPeriod failed with result: {result}");
}
else
{
_isActive = true;
}
}
private void Disable()
{
if (_isActive)
{
uint result = TimeEndPeriod(_targetResolutionInMilliseconds);
if (result != 0)
{
Logger.Notice.Print(LogClass.Application, $"timeEndPeriod failed with result: {result}");
}
else
{
_isActive = false;
}
}
}
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
Disable();
}
}
}
}