using System;
using System.Runtime.CompilerServices;
using BestHTTP.Extensions;
using Cpp2IlInjected;

namespace BestHTTP.Decompression.Zlib
{
	// Token: 0x02002088 RID: 8328
	[Token(Token = "0x2002088")]
	internal sealed class InflateBlocks
	{
		// Token: 0x0600D160 RID: 53600 RVA: 0x002FAD80 File Offset: 0x002F8F80
		[Token(Token = "0x600D160")]
		[Address(RVA = "0x24193C0", Offset = "0x24183C0", VA = "0x1824193C0")]
		internal InflateBlocks(ZlibCodec codec, object checkfn, int w)
		{
			int[] array = new int[1];
			this.bb = array;
			int[] array2 = new int[1];
			this.tb = array2;
			InflateCodes inflateCodes = new InflateCodes();
			this.codes = inflateCodes;
			InfTree infTree = new InfTree();
			this.inftree = infTree;
			base..ctor();
			this._codec = codec;
			int[] array3 = new int[4320];
			this.hufts = array3;
			byte[] array4 = VariableSizedBufferPool.Get((long)w, true);
			this.window = array4;
			this.end = w;
			this.checkfn = checkfn;
			this.mode = (InflateBlocks.InflateBlockMode)((ulong)0L);
			uint num = this.Reset();
		}

		// Token: 0x0600D161 RID: 53601 RVA: 0x002FAE14 File Offset: 0x002F9014
		[Token(Token = "0x600D161")]
		[Address(RVA = "0x2419250", Offset = "0x2418250", VA = "0x182419250")]
		internal uint Reset()
		{
			uint num = this.check;
			int num2 = 0;
			this.mode = (InflateBlocks.InflateBlockMode)num2;
			this.bitk = num2;
			this.readAt = num2;
			if (this.checkfn != num2)
			{
				ZlibCodec codec = this._codec;
				this.check = (uint)((ulong)1L);
				codec._Adler32 = (uint)((ulong)1L);
			}
			return num;
		}

		// Token: 0x0600D162 RID: 53602 RVA: 0x002FAE68 File Offset: 0x002F9068
		[Token(Token = "0x600D162")]
		[Address(RVA = "0x2417BD0", Offset = "0x2416BD0", VA = "0x182417BD0")]
		internal int Process(int r)
		{
			/*
An exception occurred when decompiling this method (0600D162)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 BestHTTP.Decompression.Zlib.InflateBlocks::Process(System.Int32)

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	IL_B98:
	stloc:ZlibCodec(var_179_B9E, ldfld:ZlibCodec(InflateBlocks::_codec, ldloc:InflateBlocks(this)))
	stfld:int32(InflateBlocks::bitb, ldloc:InflateBlocks(this), ldc.i4:int32(0))
	stfld:int32(InflateBlocks::bitk, ldloc:InflateBlocks(this), ldc.i4:int32(0))
	stfld:int32(ZlibCodec::AvailableBytesIn, ldloc:ZlibCodec(var_179_B9E), ldc.i4:int32(0))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600D163 RID: 53603 RVA: 0x002FBA2C File Offset: 0x002F9C2C
		[Token(Token = "0x600D163")]
		[Address(RVA = "0x2417B50", Offset = "0x2416B50", VA = "0x182417B50")]
		internal void Free()
		{
			uint num = this.Reset();
			VariableSizedBufferPool.Release(this.window);
			int num2 = 0;
			this.window = num2;
			this.hufts = num2;
		}

		// Token: 0x0600D164 RID: 53604 RVA: 0x002FBA5C File Offset: 0x002F9C5C
		[Token(Token = "0x600D164")]
		[Address(RVA = "0x2419310", Offset = "0x2418310", VA = "0x182419310")]
		internal void SetDictionary(byte[] d, int start, int n)
		{
			byte[] array = this.window;
			int num = 0;
			Array.Copy(d, start, array, num, n);
			this.writeAt = n;
			this.readAt = n;
		}

		// Token: 0x0600D165 RID: 53605 RVA: 0x002FBA8C File Offset: 0x002F9C8C
		[Token(Token = "0x600D165")]
		[Address(RVA = "0x4EAF20", Offset = "0x4E9F20", VA = "0x1804EAF20")]
		internal int SyncPoint()
		{
			/*
An exception occurred when decompiling this method (0600D165)

ICSharpCode.Decompiler.DecompilerException: Error decompiling System.Int32 BestHTTP.Decompression.Zlib.InflateBlocks::SyncPoint()

 ---> System.Exception: Basic block has to end with unconditional control flow. 
{
	Block_0:
	stloc:bool(var_0_09, ceq:bool(ldfld:InflateBlockMode(InflateBlocks::mode, ldloc:InflateBlocks(this)), ldc.i4:InflateBlockMode(1)))
}

   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.FlattenBasicBlocks(ILNode node) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 1852
   at ICSharpCode.Decompiler.ILAst.ILAstOptimizer.Optimize(DecompilerContext context, ILBlock method, AutoPropertyProvider autoPropertyProvider, StateMachineKind& stateMachineKind, MethodDef& inlinedMethod, AsyncMethodDebugInfo& asyncInfo, ILAstOptimizationStep abortBeforeStep) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\ILAst\ILAstOptimizer.cs:line 355
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(IEnumerable`1 parameters, MethodDebugInfoBuilder& builder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 123
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 88
   --- End of inner exception stack trace ---
   at ICSharpCode.Decompiler.Ast.AstMethodBodyBuilder.CreateMethodBody(MethodDef methodDef, DecompilerContext context, AutoPropertyProvider autoPropertyProvider, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, StringBuilder sb, MethodDebugInfoBuilder& stmtsBuilder) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstMethodBodyBuilder.cs:line 92
   at ICSharpCode.Decompiler.Ast.AstBuilder.AddMethodBody(EntityDeclaration methodNode, EntityDeclaration& updatedNode, MethodDef method, IEnumerable`1 parameters, Boolean valueParameterIsKeyword, MethodKind methodKind) in D:\a\dnSpy\dnSpy\Extensions\ILSpy.Decompiler\ICSharpCode.Decompiler\ICSharpCode.Decompiler\Ast\AstBuilder.cs:line 1663
*/;
		}

		// Token: 0x0600D166 RID: 53606 RVA: 0x002FBAA4 File Offset: 0x002F9CA4
		[Token(Token = "0x600D166")]
		[Address(RVA = "0x24179A0", Offset = "0x24169A0", VA = "0x1824179A0")]
		internal int Flush(int r)
		{
			int num = this.readAt;
			int num2 = 0;
			int num3 = this.writeAt;
			if (num2 != 0 || num > num3)
			{
			}
			num3 -= num;
			if (num3 != 0)
			{
				ZlibCodec codec = this._codec;
				int num4 = codec.AvailableBytesOut;
				if (num3 > num4)
				{
					num3 = num4;
				}
				if (num3 != 0)
				{
				}
				num4 -= num3;
				codec.AvailableBytesOut = num4;
				ZlibCodec codec2 = this._codec;
				if (this.checkfn != num2)
				{
					int num5 = this.readAt;
					ZlibCodec codec3 = this._codec;
					uint num6 = this.check;
					byte[] array = this.window;
					uint num7 = Adler.Adler32(num6, array, num5, num3);
					this.check = num7;
					codec3._Adler32 = num7;
				}
				ZlibCodec codec4 = this._codec;
				int nextOut = codec4.NextOut;
				byte[] outputBuffer = codec4.OutputBuffer;
				int num8 = this.readAt;
				Array.Copy(this.window, num8, outputBuffer, nextOut, num3);
				ZlibCodec codec5 = this._codec;
				int num9 = this.readAt;
				int num10 = this.end;
				num9 += num3;
				this.readAt = num9;
				if (num9 == num10 && num2 == 0)
				{
					this.readAt = num2;
					if (this.writeAt != num10)
					{
						goto IL_11C;
					}
					this.writeAt = num2;
				}
				num2++;
				IL_11C:
				num2++;
			}
			return num2;
		}

		// Token: 0x0600D167 RID: 53607 RVA: 0x002FBBD8 File Offset: 0x002F9DD8
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600D167")]
		[Address(RVA = "0x2419360", Offset = "0x2418360", VA = "0x182419360")]
		static InflateBlocks()
		{
			int[] array = new int[19];
			RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.1FDC8DB567F5AAA7068D0D2A601CD71657CBDF38).FieldHandle);
			InflateBlocks.border = array;
		}

		// Token: 0x040084C5 RID: 33989
		[Token(Token = "0x40084C5")]
		private const int MANY = 1440;

		// Token: 0x040084C6 RID: 33990
		[Token(Token = "0x40084C6")]
		internal static readonly int[] border;

		// Token: 0x040084C7 RID: 33991
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40084C7")]
		private InflateBlocks.InflateBlockMode mode;

		// Token: 0x040084C8 RID: 33992
		[FieldOffset(Offset = "0x14")]
		[Token(Token = "0x40084C8")]
		internal int left;

		// Token: 0x040084C9 RID: 33993
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40084C9")]
		internal int table;

		// Token: 0x040084CA RID: 33994
		[FieldOffset(Offset = "0x1C")]
		[Token(Token = "0x40084CA")]
		internal int index;

		// Token: 0x040084CB RID: 33995
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40084CB")]
		internal int[] blens;

		// Token: 0x040084CC RID: 33996
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40084CC")]
		internal int[] bb;

		// Token: 0x040084CD RID: 33997
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40084CD")]
		internal int[] tb;

		// Token: 0x040084CE RID: 33998
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40084CE")]
		internal InflateCodes codes;

		// Token: 0x040084CF RID: 33999
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40084CF")]
		internal int last;

		// Token: 0x040084D0 RID: 34000
		[FieldOffset(Offset = "0x48")]
		[Token(Token = "0x40084D0")]
		internal ZlibCodec _codec;

		// Token: 0x040084D1 RID: 34001
		[FieldOffset(Offset = "0x50")]
		[Token(Token = "0x40084D1")]
		internal int bitk;

		// Token: 0x040084D2 RID: 34002
		[FieldOffset(Offset = "0x54")]
		[Token(Token = "0x40084D2")]
		internal int bitb;

		// Token: 0x040084D3 RID: 34003
		[FieldOffset(Offset = "0x58")]
		[Token(Token = "0x40084D3")]
		internal int[] hufts;

		// Token: 0x040084D4 RID: 34004
		[FieldOffset(Offset = "0x60")]
		[Token(Token = "0x40084D4")]
		internal byte[] window;

		// Token: 0x040084D5 RID: 34005
		[FieldOffset(Offset = "0x68")]
		[Token(Token = "0x40084D5")]
		internal int end;

		// Token: 0x040084D6 RID: 34006
		[FieldOffset(Offset = "0x6C")]
		[Token(Token = "0x40084D6")]
		internal int readAt;

		// Token: 0x040084D7 RID: 34007
		[FieldOffset(Offset = "0x70")]
		[Token(Token = "0x40084D7")]
		internal int writeAt;

		// Token: 0x040084D8 RID: 34008
		[FieldOffset(Offset = "0x78")]
		[Token(Token = "0x40084D8")]
		internal object checkfn;

		// Token: 0x040084D9 RID: 34009
		[FieldOffset(Offset = "0x80")]
		[Token(Token = "0x40084D9")]
		internal uint check;

		// Token: 0x040084DA RID: 34010
		[FieldOffset(Offset = "0x88")]
		[Token(Token = "0x40084DA")]
		internal InfTree inftree;

		// Token: 0x02002089 RID: 8329
		[Token(Token = "0x2002089")]
		private enum InflateBlockMode
		{
			// Token: 0x040084DC RID: 34012
			[Token(Token = "0x40084DC")]
			TYPE,
			// Token: 0x040084DD RID: 34013
			[Token(Token = "0x40084DD")]
			LENS,
			// Token: 0x040084DE RID: 34014
			[Token(Token = "0x40084DE")]
			STORED,
			// Token: 0x040084DF RID: 34015
			[Token(Token = "0x40084DF")]
			TABLE,
			// Token: 0x040084E0 RID: 34016
			[Token(Token = "0x40084E0")]
			BTREE,
			// Token: 0x040084E1 RID: 34017
			[Token(Token = "0x40084E1")]
			DTREE,
			// Token: 0x040084E2 RID: 34018
			[Token(Token = "0x40084E2")]
			CODES,
			// Token: 0x040084E3 RID: 34019
			[Token(Token = "0x40084E3")]
			DRY,
			// Token: 0x040084E4 RID: 34020
			[Token(Token = "0x40084E4")]
			DONE,
			// Token: 0x040084E5 RID: 34021
			[Token(Token = "0x40084E5")]
			BAD
		}
	}
}