vi: Unify resolutions values and accurate implementation of them. (#2640)

* vi: Unify resolutions values and accurate implementation of them.

To continue what was made in #2618, I've REd `vi` service a bit. Now values and checks related to displays are more accurate.

- `am`  GetDefaultDisplayResolution / GetDefaultDisplayResolutionChangeEvent have more informations on what the service does.
- `vi:u/vi:m/vi:s` GetDisplayService are now accurate.
- `IApplicationDisplay` GetRelayService, GetSystemDisplayService, GetManagerDisplayService, GetIndirectDisplayTransactionService, ListDisplays, OpenDisplay, OpenDefaultDisplay, CloseDisplay, GetDisplayResolution are now properly implemented.
- Some other calls are cleaned or have extra checks accordingly to RE.

Additionnaly, `IFriendService` have some wrong aligned things, and `pm:info` service placeholder was missing.

* just use _openedDisplayInfo.Remove()

* use context.Memory.Fill()

* fix some casting

* remove unneeded comment

* cleanup

* uses TryAdd

* displayId > ulong

* GetDisplayResolution > ulong

* UL

1 files changed, 8 insertions, 3 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Vi/RootService/ApplicationDisplayService/ISystemDisplayService.cs b/Ryujinx.HLE/HOS/Services/Vi/RootService/ApplicationDisplayService/ISystemDisplayService.cs
index e82099b1..82dd6af6 100644
--- a/Ryujinx.HLE/HOS/Services/Vi/RootService/ApplicationDisplayService/ISystemDisplayService.cs
+++ b/Ryujinx.HLE/HOS/Services/Vi/RootService/ApplicationDisplayService/ISystemDisplayService.cs
@@ -42,12 +42,17 @@ namespace Ryujinx.HLE.HOS.Services.Vi.RootService.ApplicationDisplayService
         // GetDisplayMode(u64) -> nn::vi::DisplayModeInfo
         public ResultCode GetDisplayMode(ServiceCtx context)
         {
-            // TODO: De-hardcode resolution.
-            context.ResponseData.Write(1280);
-            context.ResponseData.Write(720);
+            ulong displayId = context.RequestData.ReadUInt64();
+
+            (ulong width, ulong height) = AndroidSurfaceComposerClient.GetDisplayInfo(context, displayId);
+
+            context.ResponseData.Write((uint)width);
+            context.ResponseData.Write((uint)height);
             context.ResponseData.Write(60.0f);
             context.ResponseData.Write(0);
 
+            Logger.Stub?.PrintStub(LogClass.ServiceVi);
+
             return ResultCode.Success;
         }
     }