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misc: Remove dependency on System.Drawing.Common (#4082)

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We only used it in one spot for DPI scaling factor.

This implements the same behaviour using gdiplus.

This remove 700KB of dependency to download and around 170KB unpacked.
This commit is contained in:
Mary-nyan 2022-12-09 18:00:53 +01:00 committed by GitHub
parent dca96122bf
commit 872f036d64
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3 changed files with 77 additions and 3 deletions
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1
Ryujinx.Common/Ryujinx.Common.csproj
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@ -7,7 +7,6 @@
<ItemGroup>
<PackageReference Include="MsgPack.Cli" Version="1.0.1" />
<PackageReference Include="System.Drawing.Common" Version="7.0.0" />
<PackageReference Include="System.Management" Version="7.0.0" />
</ItemGroup>

3
Ryujinx.Common/System/ForceDpiAware.cs
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@ -1,6 +1,5 @@
using Ryujinx.Common.Logging;
using System;
using System.Drawing;
using System.Globalization;
using System.Runtime.InteropServices;
@ -51,7 +50,7 @@ namespace Ryujinx.Common.System
{
if (OperatingSystem.IsWindows())
{
userDpiScale = Graphics.FromHwnd(IntPtr.Zero).DpiX;
userDpiScale = GdiPlusHelper.GetDpiX(IntPtr.Zero);
}
else if (OperatingSystem.IsLinux())
{

76
Ryujinx.Common/System/GdiPlusHelper.cs Normal file
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@ -0,0 +1,76 @@
using System;
using System.Runtime.InteropServices;
using System.Runtime.Versioning;
namespace Ryujinx.Common.System
{
[SupportedOSPlatform("windows")]
public static class GdiPlusHelper
{
private const string LibraryName = "gdiplus.dll";
private static readonly IntPtr _initToken;
static GdiPlusHelper()
{
CheckStatus(GdiplusStartup(out _initToken, StartupInputEx.Default, out _));
}
private static void CheckStatus(int gdiStatus)
{
if (gdiStatus != 0)
{
throw new Exception($"GDI Status Error: {gdiStatus}");
}
}
private struct StartupInputEx
{
public int GdiplusVersion;
#pragma warning disable CS0649
public IntPtr DebugEventCallback;
public int SuppressBackgroundThread;
public int SuppressExternalCodecs;
public int StartupParameters;
#pragma warning restore CS0649
public static StartupInputEx Default => new StartupInputEx
{
// We assume Windows 8 and upper
GdiplusVersion = 2,
DebugEventCallback = IntPtr.Zero,
SuppressBackgroundThread = 0,
SuppressExternalCodecs = 0,
StartupParameters = 0,
};
}
private struct StartupOutput
{
public IntPtr NotificationHook;
public IntPtr NotificationUnhook;
}
[DllImport(LibraryName)]
private static extern int GdiplusStartup(out IntPtr token, in StartupInputEx input, out StartupOutput output);
[DllImport(LibraryName)]
private static extern int GdipCreateFromHWND(IntPtr hwnd, out IntPtr graphics);
[DllImport(LibraryName)]
private static extern int GdipDeleteGraphics(IntPtr graphics);
[DllImport(LibraryName)]
private static extern int GdipGetDpiX(IntPtr graphics, out float dpi);
public static float GetDpiX(IntPtr hwnd)
{
CheckStatus(GdipCreateFromHWND(hwnd, out IntPtr graphicsHandle));
CheckStatus(GdipGetDpiX(graphicsHandle, out float result));
CheckStatus(GdipDeleteGraphics(graphicsHandle));
return result;
}
}
}