using System;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Security;
using System.Security.Permissions;
using UnityEngine;
using UnityEngine.Scripting;

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[assembly: InternalsVisibleTo("Unity.UIElements.PlayModeTests")]
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[assembly: InternalsVisibleTo("Unity.IntegrationTests.UnityAnalytics")]
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[assembly: InternalsVisibleTo("Unity.IntegrationTests.Framework")]
[assembly: InternalsVisibleTo("Unity.RuntimeTests")]
[assembly: InternalsVisibleTo("Unity.Burst")]
[assembly: InternalsVisibleTo("Unity.Networking.Transport")]
[assembly: InternalsVisibleTo("Unity.ucg.QoS")]
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[assembly: InternalsVisibleTo("Unity.Entities")]
[assembly: InternalsVisibleTo("Unity.Entities.Tests")]
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[assembly: InternalsVisibleTo("Unity.Runtime")]
[assembly: InternalsVisibleTo("Unity.Core")]
[assembly: InternalsVisibleTo("Unity.InternalAPIEngineBridge.001")]
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[assembly: InternalsVisibleTo("UnityEngine.Cloud")]
[assembly: InternalsVisibleTo("Acessibility.VisionUtility.Tests")]
[assembly: InternalsVisibleTo("UnityEngine.Networking")]
[assembly: InternalsVisibleTo("UnityEngine.PS5Module")]
[assembly: InternalsVisibleTo("UnityEngine.UnityConnectModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityAnalyticsCommonModule")]
[assembly: InternalsVisibleTo("UnityEngine.TLSModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityWebRequestModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityAnalyticsModule")]
[assembly: InternalsVisibleTo("UnityEngine.CrashReportingModule")]
[assembly: InternalsVisibleTo("UnityEngine.DirectorModule")]
[assembly: InternalsVisibleTo("UnityEngine.DSPGraphModule")]
[assembly: InternalsVisibleTo("UnityEngine.ImageConversionModule")]
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[assembly: InternalsVisibleTo("UnityEngine")]
[assembly: InternalsVisibleTo("UnityEngine.SharedInternalsModule")]
[assembly: InternalsVisibleTo("UnityEngine.CoreModule")]
[assembly: InternalsVisibleTo("UnityEngine.AccessibilityModule")]
[assembly: InternalsVisibleTo("UnityEngine.LocalizationModule")]
[assembly: InternalsVisibleTo("UnityEngine.AIModule")]
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[assembly: InternalsVisibleTo("UnityEngine.PhysicsModule")]
[assembly: InternalsVisibleTo("UnityEngine.JSONSerializeModule")]
[assembly: InternalsVisibleTo("UnityEngine.InputModule")]
[assembly: InternalsVisibleTo("UnityEngine.ARModule")]
[assembly: InternalsVisibleTo("UnityEngine.HotReloadModule")]
[assembly: InternalsVisibleTo("UnityEngine.AssetBundleModule")]
[assembly: InternalsVisibleTo("UnityEngine.AndroidJNIModule")]
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[assembly: InternalsVisibleTo("UnityEngine.UnityWebRequestAudioModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityWebRequestTextureModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityWebRequestWWWModule")]
[assembly: InternalsVisibleTo("UnityEngine.VehiclesModule")]
[assembly: InternalsVisibleTo("UnityEngine.VFXModule")]
[assembly: InternalsVisibleTo("UnityEngine.ParticleSystemModule")]
[assembly: InternalsVisibleTo("UnityEngine.VideoModule")]
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[assembly: InternalsVisibleTo("UnityEngine.XboxOneModule")]
[assembly: InternalsVisibleTo("UnityEngine.PS4Module")]
[assembly: InternalsVisibleTo("UnityEngine.PS4VRModule")]
[assembly: InternalsVisibleTo("UnityEngine.VirtualTexturingModule")]
[assembly: InternalsVisibleTo("UnityEngine.UNETModule")]
[assembly: InternalsVisibleTo("UnityEngine.UnityCurlModule")]
[assembly: InternalsVisibleTo("UnityEngine.UIElementsModule")]
[assembly: InternalsVisibleTo("UnityEngine.Physics2DModule")]
[assembly: InternalsVisibleTo("UnityEngine.ProfilerModule")]
[assembly: InternalsVisibleTo("UnityEngine.RuntimeInitializeOnLoadManagerInitializerModule")]
[assembly: InternalsVisibleTo("UnityEngine.ScreenCaptureModule")]
[assembly: InternalsVisibleTo("UnityEngine.SpriteMaskModule")]
[assembly: InternalsVisibleTo("UnityEngine.SpriteShapeModule")]
[assembly: InternalsVisibleTo("UnityEngine.UmbraModule")]
[assembly: InternalsVisibleTo("UnityEngine.SubstanceModule")]
[assembly: InternalsVisibleTo("UnityEngine.StreamingModule")]
[assembly: InternalsVisibleTo("UnityEngine.TerrainModule")]
[assembly: InternalsVisibleTo("UnityEngine.TerrainPhysicsModule")]
[assembly: InternalsVisibleTo("UnityEngine.TextCoreFontEngineModule")]
[assembly: InternalsVisibleTo("UnityEngine.TextCoreTextEngineModule")]
[assembly: InternalsVisibleTo("UnityEngine.TilemapModule")]
[assembly: InternalsVisibleTo("UnityEngine.UIModule")]
[assembly: InternalsVisibleTo("UnityEngine.UIElementsNativeModule")]
[assembly: InternalsVisibleTo("UnityEngine.SubsystemsModule")]
[assembly: SecurityPermission(SecurityAction.RequestMinimum, SkipVerification = true)]
[assembly: AssemblyVersion("0.0.0.0")]
[module: UnverifiableCode]
namespace UnityEngine.Accessibility;

[UsedByNativeCode]
public static class VisionUtility
{
	private static readonly Color[] s_ColorBlindSafePalette = (Color[])(object)new Color[19]
	{
		Color32.op_Implicit(new Color32((byte)0, (byte)0, (byte)0, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)73, (byte)0, (byte)146, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)7, (byte)71, (byte)81, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)0, (byte)146, (byte)146, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)182, (byte)109, byte.MaxValue, byte.MaxValue)),
		Color32.op_Implicit(new Color32(byte.MaxValue, (byte)109, (byte)182, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)109, (byte)182, byte.MaxValue, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)36, byte.MaxValue, (byte)36, byte.MaxValue)),
		Color32.op_Implicit(new Color32(byte.MaxValue, (byte)182, (byte)219, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)182, (byte)219, byte.MaxValue, byte.MaxValue)),
		Color32.op_Implicit(new Color32(byte.MaxValue, byte.MaxValue, (byte)109, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)30, (byte)92, (byte)92, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)74, (byte)154, (byte)87, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)113, (byte)66, (byte)183, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)162, (byte)66, (byte)183, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)178, (byte)92, (byte)25, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)100, (byte)100, (byte)100, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)80, (byte)203, (byte)181, byte.MaxValue)),
		Color32.op_Implicit(new Color32((byte)82, (byte)205, (byte)242, byte.MaxValue))
	};

	private static readonly float[] s_ColorBlindSafePaletteLuminanceValues = s_ColorBlindSafePalette.Select((Color c) => ComputePerceivedLuminance(c)).ToArray();

	internal static float ComputePerceivedLuminance(Color color)
	{
		//IL_0003: Unknown result type (might be due to invalid IL or missing references)
		//IL_0008: Unknown result type (might be due to invalid IL or missing references)
		//IL_000f: Unknown result type (might be due to invalid IL or missing references)
		//IL_001b: Unknown result type (might be due to invalid IL or missing references)
		//IL_0028: Unknown result type (might be due to invalid IL or missing references)
		color = ((Color)(ref color)).linear;
		return Mathf.LinearToGammaSpace(0.2126f * color.r + 0.7152f * color.g + 0.0722f * color.b);
	}

	internal static void GetLuminanceValuesForPalette(Color[] palette, ref float[] outLuminanceValues)
	{
		//IL_0035: Unknown result type (might be due to invalid IL or missing references)
		Debug.Assert(palette != null && outLuminanceValues != null, "Passed in arrays can't be null.");
		Debug.Assert(palette.Length == outLuminanceValues.Length, "Passed in arrays need to be of the same length.");
		for (int i = 0; i < palette.Length; i++)
		{
			outLuminanceValues[i] = ComputePerceivedLuminance(palette[i]);
		}
	}

	public unsafe static int GetColorBlindSafePalette(Color[] palette, float minimumLuminance, float maximumLuminance)
	{
		if (palette == null)
		{
			throw new ArgumentNullException("palette");
		}
		fixed (Color* palette2 = palette)
		{
			return GetColorBlindSafePaletteInternal(palette2, palette.Length, minimumLuminance, maximumLuminance, useColor32: false);
		}
	}

	internal unsafe static int GetColorBlindSafePalette(Color32[] palette, float minimumLuminance, float maximumLuminance)
	{
		if (palette == null)
		{
			throw new ArgumentNullException("palette");
		}
		fixed (Color32* palette2 = palette)
		{
			return GetColorBlindSafePaletteInternal(palette2, palette.Length, minimumLuminance, maximumLuminance, useColor32: true);
		}
	}

	[MethodImpl(MethodImplOptions.AggressiveInlining)]
	private unsafe static int GetColorBlindSafePaletteInternal(void* palette, int paletteLength, float minimumLuminance, float maximumLuminance, bool useColor32)
	{
		//IL_011c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0108: Unknown result type (might be due to invalid IL or missing references)
		//IL_00ca: Unknown result type (might be due to invalid IL or missing references)
		//IL_00cf: Unknown result type (might be due to invalid IL or missing references)
		//IL_00a8: Unknown result type (might be due to invalid IL or missing references)
		//IL_00ad: Unknown result type (might be due to invalid IL or missing references)
		//IL_00b2: Unknown result type (might be due to invalid IL or missing references)
		if (palette == null)
		{
			throw new ArgumentNullException("palette");
		}
		Color[] array = (from i in Enumerable.Range(0, s_ColorBlindSafePalette.Length)
			where s_ColorBlindSafePaletteLuminanceValues[i] >= minimumLuminance && s_ColorBlindSafePaletteLuminanceValues[i] <= maximumLuminance
			select s_ColorBlindSafePalette[i]).ToArray();
		int num = Mathf.Min(paletteLength, array.Length);
		if (num > 0)
		{
			for (int num2 = 0; num2 < paletteLength; num2++)
			{
				if (useColor32)
				{
					Unsafe.Write((byte*)palette + (nint)num2 * (nint)Unsafe.SizeOf<Color32>(), Color32.op_Implicit(array[num2 % num]));
				}
				else
				{
					Unsafe.Write((byte*)palette + (nint)num2 * (nint)Unsafe.SizeOf<Color>(), array[num2 % num]);
				}
			}
		}
		else
		{
			for (int num3 = 0; num3 < paletteLength; num3++)
			{
				if (useColor32)
				{
					Unsafe.Write((byte*)palette + (nint)num3 * (nint)Unsafe.SizeOf<Color32>(), default(Color32));
				}
				else
				{
					Unsafe.Write((byte*)palette + (nint)num3 * (nint)Unsafe.SizeOf<Color>(), default(Color));
				}
			}
		}
		return num;
	}
}