steam-deck-tools/PowerControl/Options/Resolution.cs

using PowerControl.Helpers;
using PowerControl.Helpers.AMD;

namespace PowerControl.Options
{
    public static class Resolution
    {
        public static Menu.MenuItemWithOptions Instance = new Menu.MenuItemWithOptions()
        {
            Name = "Resolution",
            PersistentKey = "Resolution",
            ApplyDelay = 1000,
            ResetValue = () =>
            {
                if (!GPUScaling.SafeResolutionChange && !Settings.Default.EnableExperimentalFeatures)
                    return null;
                return DisplayResolutionController.GetAllResolutions().Last().ToString();
            },
            OptionsValues = delegate ()
            {
                var resolutions = DisplayResolutionController.GetAllResolutions();
                if (resolutions.Count() > 1)
                    return resolutions.Select(item => item.ToString()).ToArray();
                return null;
            },
            CurrentValue = delegate ()
            {
                if (!GPUScaling.SafeResolutionChange && !Settings.Default.EnableExperimentalFeatures)
                    return null;
                return DisplayResolutionController.GetResolution().ToString();
            },
            ApplyValue = (selected) =>
            {
                var selectedResolution = new DisplayResolutionController.DisplayResolution(selected);

                if (ExternalHelpers.DisplayConfig.IsInternalConnected == true)
                {
                    ModeTiming.AddTiming(new Helpers.AMD.ADLDisplayModeX2()
                    {
                        PelsWidth = selectedResolution.Width,
                        PelsHeight = selectedResolution.Height,
                        RefreshRate = DisplayResolutionController.GetRefreshRate(),
                        TimingStandard = Helpers.AMD.ADL.ADL_DL_MODETIMING_STANDARD_CVT,
                    });
                }
                else
                {
                    DisplayResolutionController.SetResolution(selectedResolution);
                }

                return DisplayResolutionController.GetResolution().ToString();
            },
            Impacts =
            {
                RefreshRate.Instance,
                FPSLimit.Instance
            }
        };
    }
}