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

namespace BestHTTP.Decompression.Zlib
{
	// Token: 0x020019CB RID: 6603
	[Token(Token = "0x20019CB")]
	[StructLayout(3)]
	internal sealed class InflateBlocks
	{
		// Token: 0x0600B1B8 RID: 45496 RVA: 0x0029A0BC File Offset: 0x002982BC
		[Token(Token = "0x600B1B8")]
		[Address(RVA = "0x1F155E0", Offset = "0x1F13FE0", VA = "0x181F155E0")]
		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: 0x0600B1B9 RID: 45497 RVA: 0x0029A150 File Offset: 0x00298350
		[Token(Token = "0x600B1B9")]
		[Address(RVA = "0x1F15460", Offset = "0x1F13E60", VA = "0x181F15460")]
		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: 0x0600B1BA RID: 45498 RVA: 0x0029A1A4 File Offset: 0x002983A4
		[Token(Token = "0x600B1BA")]
		[Address(RVA = "0x1F13DE0", Offset = "0x1F127E0", VA = "0x181F13DE0")]
		internal int Process(int r)
		{
			/*
An exception occurred when decompiling this method (0600B1BA)

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: 0x0600B1BB RID: 45499 RVA: 0x0029AD68 File Offset: 0x00298F68
		[Token(Token = "0x600B1BB")]
		[Address(RVA = "0x1F13D60", Offset = "0x1F12760", VA = "0x181F13D60")]
		internal void Free()
		{
			uint num = this.Reset();
			VariableSizedBufferPool.Release(this.window);
			int num2 = 0;
			this.window = num2;
			this.hufts = num2;
		}

		// Token: 0x0600B1BC RID: 45500 RVA: 0x0029AD98 File Offset: 0x00298F98
		[Token(Token = "0x600B1BC")]
		[Address(RVA = "0x1F15520", Offset = "0x1F13F20", VA = "0x181F15520")]
		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: 0x0600B1BD RID: 45501 RVA: 0x0029ADC8 File Offset: 0x00298FC8
		[Token(Token = "0x600B1BD")]
		[Address(RVA = "0x1F15570", Offset = "0x1F13F70", VA = "0x181F15570")]
		internal int SyncPoint()
		{
			/*
An exception occurred when decompiling this method (0600B1BD)

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: 0x0600B1BE RID: 45502 RVA: 0x0029ADE0 File Offset: 0x00298FE0
		[Token(Token = "0x600B1BE")]
		[Address(RVA = "0x1F13BB0", Offset = "0x1F125B0", VA = "0x181F13BB0")]
		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: 0x0600B1BF RID: 45503 RVA: 0x0029AF14 File Offset: 0x00299114
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600B1BF")]
		[Address(RVA = "0x1F15580", Offset = "0x1F13F80", VA = "0x181F15580")]
		static InflateBlocks()
		{
			int[] array = new int[19];
			RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.1FDC8DB567F5AAA7068D0D2A601CD71657CBDF38).FieldHandle);
			InflateBlocks.border = array;
		}

		// Token: 0x040074C9 RID: 29897
		[Token(Token = "0x40074C9")]
		private const int MANY = 1440;

		// Token: 0x040074CA RID: 29898
		[Token(Token = "0x40074CA")]
		internal static readonly int[] border;

		// Token: 0x040074CB RID: 29899
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x10")]
		[Token(Token = "0x40074CB")]
		private InflateBlocks.InflateBlockMode mode;

		// Token: 0x040074CC RID: 29900
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x14")]
		[Token(Token = "0x40074CC")]
		internal int left;

		// Token: 0x040074CD RID: 29901
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x18")]
		[Token(Token = "0x40074CD")]
		internal int table;

		// Token: 0x040074CE RID: 29902
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x1C")]
		[Token(Token = "0x40074CE")]
		internal int index;

		// Token: 0x040074CF RID: 29903
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x20")]
		[Token(Token = "0x40074CF")]
		internal int[] blens;

		// Token: 0x040074D0 RID: 29904
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x28")]
		[Token(Token = "0x40074D0")]
		internal int[] bb;

		// Token: 0x040074D1 RID: 29905
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x30")]
		[Token(Token = "0x40074D1")]
		internal int[] tb;

		// Token: 0x040074D2 RID: 29906
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x38")]
		[Token(Token = "0x40074D2")]
		internal InflateCodes codes;

		// Token: 0x040074D3 RID: 29907
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x40")]
		[Token(Token = "0x40074D3")]
		internal int last;

		// Token: 0x040074D4 RID: 29908
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x48")]
		[Token(Token = "0x40074D4")]
		internal ZlibCodec _codec;

		// Token: 0x040074D5 RID: 29909
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x50")]
		[Token(Token = "0x40074D5")]
		internal int bitk;

		// Token: 0x040074D6 RID: 29910
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x54")]
		[Token(Token = "0x40074D6")]
		internal int bitb;

		// Token: 0x040074D7 RID: 29911
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x58")]
		[Token(Token = "0x40074D7")]
		internal int[] hufts;

		// Token: 0x040074D8 RID: 29912
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x60")]
		[Token(Token = "0x40074D8")]
		internal byte[] window;

		// Token: 0x040074D9 RID: 29913
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x68")]
		[Token(Token = "0x40074D9")]
		internal int end;

		// Token: 0x040074DA RID: 29914
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x6C")]
		[Token(Token = "0x40074DA")]
		internal int readAt;

		// Token: 0x040074DB RID: 29915
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x70")]
		[Token(Token = "0x40074DB")]
		internal int writeAt;

		// Token: 0x040074DC RID: 29916
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x78")]
		[Token(Token = "0x40074DC")]
		internal object checkfn;

		// Token: 0x040074DD RID: 29917
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x80")]
		[Token(Token = "0x40074DD")]
		internal uint check;

		// Token: 0x040074DE RID: 29918
		[global::Cpp2IlInjected.FieldOffset(Offset = "0x88")]
		[Token(Token = "0x40074DE")]
		internal InfTree inftree;

		// Token: 0x020019CC RID: 6604
		[Token(Token = "0x20019CC")]
		private enum InflateBlockMode
		{
			// Token: 0x040074E0 RID: 29920
			[Token(Token = "0x40074E0")]
			TYPE,
			// Token: 0x040074E1 RID: 29921
			[Token(Token = "0x40074E1")]
			LENS,
			// Token: 0x040074E2 RID: 29922
			[Token(Token = "0x40074E2")]
			STORED,
			// Token: 0x040074E3 RID: 29923
			[Token(Token = "0x40074E3")]
			TABLE,
			// Token: 0x040074E4 RID: 29924
			[Token(Token = "0x40074E4")]
			BTREE,
			// Token: 0x040074E5 RID: 29925
			[Token(Token = "0x40074E5")]
			DTREE,
			// Token: 0x040074E6 RID: 29926
			[Token(Token = "0x40074E6")]
			CODES,
			// Token: 0x040074E7 RID: 29927
			[Token(Token = "0x40074E7")]
			DRY,
			// Token: 0x040074E8 RID: 29928
			[Token(Token = "0x40074E8")]
			DONE,
			// Token: 0x040074E9 RID: 29929
			[Token(Token = "0x40074E9")]
			BAD
		}
	}
}