using System;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Cpp2IlInjected;

namespace BestHTTP.Decompression.Zlib
{
	// Token: 0x020019CA RID: 6602
	[Token(Token = "0x20019CA")]
	[StructLayout(3)]
	internal sealed class InfTree
	{
		// Token: 0x0600B1B1 RID: 45489 RVA: 0x00299AA0 File Offset: 0x00297CA0
		[Token(Token = "0x600B1B1")]
		[Address(RVA = "0x1F12820", Offset = "0x1F11220", VA = "0x181F12820")]
		private int huft_build(int[] b, int bindex, int n, int s, int[] d, int[] e, int[] t, int[] m, int[] hp, int[] hn, int[] v)
		{
			int[] array;
			do
			{
				array = this.c;
			}
			while (b[bindex] != array.Length);
			int length = this.c.Length;
			if ("{il2cpp array field local14->}" != n)
			{
				uint num;
				if ("{il2cpp array field local14->}" == (ulong)0L)
				{
					num += (uint)1;
					while (num <= (uint)15)
					{
					}
				}
				if ("{il2cpp array field local14->}" == (ulong)0L)
				{
					while ("{il2cpp array field local14->}" != (ulong)0L)
					{
					}
				}
				uint num2;
				uint num3;
				if (num < num2)
				{
					int[] array2 = this.c;
					num += (uint)1;
					num3 += num3;
				}
				this.c[0] = (int)num3;
				int num4 = 0;
				int[] array3 = this.x;
				uint num5 = num2 - 1U;
				array3[0] = num4;
				if (num5 != (uint)0)
				{
					int[] array4 = this.c;
					int[] array5 = this.x;
					int num6;
					num6 += num4;
					array5[0] = num6;
					while (1 != array5.Length)
					{
					}
				}
				int num7 = b[bindex];
				if (num7 != 0)
				{
					int[] array6 = this.x;
					int num8 = array6[num7] + 1;
					array6[0] = num8;
				}
				int[] array7 = this.x;
				int length2 = array7.Length;
				int num9 = array7[(int)num2];
				int num10 = 0;
				int num11 = 0;
				array7[0] = num10;
				int[] array8 = this.u;
				int num12 = 0;
				array8[0] = num11;
				int num13 = this.c[(int)num];
				int num14 = num13 - 1;
				if (num13 != 0)
				{
					int num15 = num14 + 1;
					if (num > (uint)num13)
					{
						num13 = num9;
						uint num16;
						num16 -= (uint)num14;
						if (num9 < num15)
						{
							int num17 = num9 + 1;
							num9 = num17;
							if (num17 < num15)
							{
								int[] array9 = this.c;
								num16 += num16;
								num += (uint)1;
								int num18 = array9[(int)num];
								if (num16 > (uint)num18)
								{
									num17++;
									num16 -= (uint)num18;
									num9 = num17;
								}
							}
						}
						this.u[0] = num12;
						if (-1 == 0)
						{
						}
						int[] array10 = this.x;
						array10[0] = num10;
						this.r[0] = array10;
						this.r[0] = array10;
						num13 -= (int)num;
						int[] array11 = this.u;
						int[] array12 = this.r;
						num12 -= array10;
						array12[1] = num12;
						int[] array13 = this.u;
						int num19;
						num19 += array10;
						int[] array14 = this.r;
					}
					int[] array15 = this.r;
					num -= (uint)num13;
					array15[0] = (int)num;
					if (num11 < num9)
					{
						int[] array16 = this.r;
						num11++;
						int num20;
						num20 += 80;
						array16[0] = array15;
						int num21;
						this.r[1] = num21;
						int[] array17 = this.r;
						num11++;
						uint num22;
						array17[0] = (int)num22;
						this.r[1] = (int)num22;
					}
					int[] array18 = this.r;
					num -= (uint)num13;
					uint num23;
					if (array18 < num23)
					{
						int[] array19 = this.r;
						uint num24;
						array18 += num24;
					}
					uint num25;
					if (num10 != (int)num25)
					{
						while (num10 != array18)
						{
						}
					}
					int[] array20 = this.x;
					uint num26;
					if (num26 != "{il2cpp array field local81->}")
					{
						num13 -= (int)num;
					}
					while (num14 != 0)
					{
					}
				}
				num += (uint)1;
				while (num <= num2)
				{
				}
				if (num2 != (uint)1)
				{
				}
			}
			throw new NullReferenceException();
		}

		// Token: 0x0600B1B2 RID: 45490 RVA: 0x00299DAC File Offset: 0x00297FAC
		[Token(Token = "0x600B1B2")]
		[Address(RVA = "0x1F13400", Offset = "0x1F11E00", VA = "0x181F13400")]
		internal int inflate_trees_bits(int[] c, int[] bb, int[] tb, int[] hp, ZlibCodec z)
		{
			this.initWorkArea(19);
			int[] array = this.hn;
			int num = 0;
			array[0] = num;
			int[] array2 = this.v;
			int[] array3 = this.hn;
			int num2;
			if (num2 == -3 || num2 == -5 || "{il2cpp array field bb->}" == (ulong)0L)
			{
			}
			return num2;
		}

		// Token: 0x0600B1B3 RID: 45491 RVA: 0x00299E00 File Offset: 0x00298000
		[Token(Token = "0x600B1B3")]
		[Address(RVA = "0x1F13550", Offset = "0x1F11F50", VA = "0x181F13550")]
		internal int inflate_trees_dynamic(int nl, int nd, int[] c, int[] bl, int[] bd, int[] tl, int[] td, int[] hp, ZlibCodec z)
		{
			this.initWorkArea(288);
			int[] array = this.hn;
			int num = 0;
			array[0] = num;
			int[] array2 = this.hn;
			int[] array3 = InfTree.cplens;
			int[] array4 = InfTree.cplext;
			int[] array5 = this.v;
			int num2;
			if (num2 == 0)
			{
				this.initWorkArea(288);
				int[] array6 = this.hn;
				int[] array7 = InfTree.cpdist;
				int[] array8 = InfTree.cpdext;
				int[] array9 = this.v;
				int num3;
				if (num3 == 0)
				{
				}
				if (num3 == -3 || num3 == -5 || num3 != -4)
				{
				}
				return num3;
			}
			if (num2 != -3)
			{
				while (num2 == -4)
				{
				}
			}
			throw new NullReferenceException();
		}

		// Token: 0x0600B1B4 RID: 45492 RVA: 0x00299EA0 File Offset: 0x002980A0
		[Token(Token = "0x600B1B4")]
		[Address(RVA = "0x1F13860", Offset = "0x1F12260", VA = "0x181F13860")]
		internal static int inflate_trees_fixed(int[] bl, int[] bd, int[][] tl, int[][] td, ZlibCodec z)
		{
			int[] array = InfTree.fixed_tl;
			if (array != 0)
			{
			}
			tl[0] = array;
			int[] array2 = InfTree.fixed_td;
			if (array2 != 0)
			{
			}
			int num = 0;
			td[0] = array2;
			return num;
		}

		// Token: 0x0600B1B5 RID: 45493 RVA: 0x00299EDC File Offset: 0x002980DC
		[Token(Token = "0x600B1B5")]
		[Address(RVA = "0x1F139F0", Offset = "0x1F123F0", VA = "0x181F139F0")]
		private void initWorkArea(int vsize)
		{
			if (this.cplens != (ulong)0L)
			{
				int[] array = this.v;
				if (array.Length < vsize)
				{
					int[] array2 = new int[vsize];
					this.v = array2;
				}
				int num = 0;
				Array.Clear(array, num, vsize);
				int[] array3 = this.c;
				int num2 = 0;
				Array.Clear(array3, num2, 16);
				int[] array4 = this.r;
				int num3 = 0;
				array4[0] = num3;
				this.r[0] = num3;
				this.r[1] = num3;
				int[] array5 = this.u;
				int num4 = 0;
				Array.Clear(array5, num4, 15);
				int[] array6 = this.x;
				int num5 = 0;
				Array.Clear(array6, num5, 16);
				return;
			}
			int[] array7 = new int[1];
			this.hn = array7;
			int[] array8 = new int[vsize];
			this.v = array8;
			int[] array9 = new int[16];
			this.c = array9;
			int[] array10 = new int[3];
			this.r = array10;
			int[] array11 = new int[15];
			this.u = array11;
			int[] array12 = new int[16];
			this.x = array12;
		}

		// Token: 0x0600B1B6 RID: 45494 RVA: 0x00299FFC File Offset: 0x002981FC
		[Token(Token = "0x600B1B6")]
		[Address(RVA = "0x3C1670", Offset = "0x3C0070", VA = "0x1803C1670")]
		public InfTree()
		{
		}

		// Token: 0x0600B1B7 RID: 45495 RVA: 0x0029A010 File Offset: 0x00298210
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600B1B7")]
		[Address(RVA = "0x1F126A0", Offset = "0x1F110A0", VA = "0x181F126A0")]
		static InfTree()
		{
			int[] array = new int[1536];
			RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.A474A0BEC4E2CE8491839502AE85F6EA8504C6BD).FieldHandle);
			InfTree.fixed_tl = array;
			int[] array2 = new int[96];
			RuntimeHelpers.InitializeArray(array2, fieldof(<PrivateImplementationDetails>.1B180C6E41F096D53222F5E8EF558B78182CA401).FieldHandle);
			InfTree.fixed_td = array2;
			int[] array3 = new int[31];
			RuntimeHelpers.InitializeArray(array3, fieldof(<PrivateImplementationDetails>.8ED8F61DAA454B49CD5059AE4486C59174324E9E).FieldHandle);
			InfTree.cplens = array3;
			int[] array4 = new int[31];
			RuntimeHelpers.InitializeArray(array4, fieldof(<PrivateImplementationDetails>.DACFCC5E985D9E113ABB74724C5D3CC4FDC4FB8A).FieldHandle);
			InfTree.cplext = array4;
			int[] array5 = new int[30];
			RuntimeHelpers.InitializeArray(array5, fieldof(<PrivateImplementationDetails>.D068832E6B13A623916709C1E0E25ADCBE7B455F).FieldHandle);
			InfTree.cpdist = array5;
			int[] array6 = new int[30];
			RuntimeHelpers.InitializeArray(array6, fieldof(<PrivateImplementationDetails>.79D521E6E3E55103005E9CC3FA43B3174FAF090F).FieldHandle);
			InfTree.cpdext = array6;
		}

		// Token: 0x040074B0 RID: 29872
		[Token(Token = "0x40074B0")]
		private const int MANY = 1440;

		// Token: 0x040074B1 RID: 29873
		[Token(Token = "0x40074B1")]
		private const int Z_OK = 0;

		// Token: 0x040074B2 RID: 29874
		[Token(Token = "0x40074B2")]
		private const int Z_STREAM_END = 1;

		// Token: 0x040074B3 RID: 29875
		[Token(Token = "0x40074B3")]
		private const int Z_NEED_DICT = 2;

		// Token: 0x040074B4 RID: 29876
		[Token(Token = "0x40074B4")]
		private const int Z_ERRNO = -1;

		// Token: 0x040074B5 RID: 29877
		[Token(Token = "0x40074B5")]
		private const int Z_STREAM_ERROR = -2;

		// Token: 0x040074B6 RID: 29878
		[Token(Token = "0x40074B6")]
		private const int Z_DATA_ERROR = -3;

		// Token: 0x040074B7 RID: 29879
		[Token(Token = "0x40074B7")]
		private const int Z_MEM_ERROR = -4;

		// Token: 0x040074B8 RID: 29880
		[Token(Token = "0x40074B8")]
		private const int Z_BUF_ERROR = -5;

		// Token: 0x040074B9 RID: 29881
		[Token(Token = "0x40074B9")]
		private const int Z_VERSION_ERROR = -6;

		// Token: 0x040074BA RID: 29882
		[Token(Token = "0x40074BA")]
		internal const int fixed_bl = 9;

		// Token: 0x040074BB RID: 29883
		[Token(Token = "0x40074BB")]
		internal const int fixed_bd = 5;

		// Token: 0x040074BC RID: 29884
		[Token(Token = "0x40074BC")]
		internal static readonly int[] fixed_tl;

		// Token: 0x040074BD RID: 29885
		[Token(Token = "0x40074BD")]
		internal static readonly int[] fixed_td;

		// Token: 0x040074BE RID: 29886
		[Token(Token = "0x40074BE")]
		internal static readonly int[] cplens;

		// Token: 0x040074BF RID: 29887
		[Token(Token = "0x40074BF")]
		internal static readonly int[] cplext;

		// Token: 0x040074C0 RID: 29888
		[Token(Token = "0x40074C0")]
		internal static readonly int[] cpdist;

		// Token: 0x040074C1 RID: 29889
		[Token(Token = "0x40074C1")]
		internal static readonly int[] cpdext;

		// Token: 0x040074C2 RID: 29890
		[Token(Token = "0x40074C2")]
		internal const int BMAX = 15;

		// Token: 0x040074C3 RID: 29891
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40074C3")]
		internal int[] hn;

		// Token: 0x040074C4 RID: 29892
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40074C4")]
		internal int[] v;

		// Token: 0x040074C5 RID: 29893
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40074C5")]
		internal int[] c;

		// Token: 0x040074C6 RID: 29894
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40074C6")]
		internal int[] r;

		// Token: 0x040074C7 RID: 29895
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40074C7")]
		internal int[] u;

		// Token: 0x040074C8 RID: 29896
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40074C8")]
		internal int[] x;
	}
}