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

namespace BestHTTP.Decompression.Zlib
{
	// Token: 0x02001FA8 RID: 8104
	[Token(Token = "0x2001FA8")]
	internal sealed class InflateBlocks
	{
		// Token: 0x0600CD92 RID: 52626 RVA: 0x002F2710 File Offset: 0x002F0910
		[Token(Token = "0x600CD92")]
		[Address(RVA = "0x1971390", Offset = "0x1970190", VA = "0x181971390")]
		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: 0x0600CD93 RID: 52627 RVA: 0x002F27A4 File Offset: 0x002F09A4
		[Token(Token = "0x600CD93")]
		[Address(RVA = "0x1971220", Offset = "0x1970020", VA = "0x181971220")]
		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: 0x0600CD94 RID: 52628 RVA: 0x002F27F8 File Offset: 0x002F09F8
		[Token(Token = "0x600CD94")]
		[Address(RVA = "0x196FBA0", Offset = "0x196E9A0", VA = "0x18196FBA0")]
		internal int Process(int r)
		{
			/*
An exception occurred when decompiling this method (0600CD94)

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: 0x0600CD95 RID: 52629 RVA: 0x002F33BC File Offset: 0x002F15BC
		[Token(Token = "0x600CD95")]
		[Address(RVA = "0x196FB20", Offset = "0x196E920", VA = "0x18196FB20")]
		internal void Free()
		{
			uint num = this.Reset();
			VariableSizedBufferPool.Release(this.window);
			int num2 = 0;
			this.window = num2;
			this.hufts = num2;
		}

		// Token: 0x0600CD96 RID: 52630 RVA: 0x002F33EC File Offset: 0x002F15EC
		[Token(Token = "0x600CD96")]
		[Address(RVA = "0x19712E0", Offset = "0x19700E0", VA = "0x1819712E0")]
		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: 0x0600CD97 RID: 52631 RVA: 0x002F341C File Offset: 0x002F161C
		[Token(Token = "0x600CD97")]
		[Address(RVA = "0x18E13F0", Offset = "0x18E01F0", VA = "0x1818E13F0")]
		internal int SyncPoint()
		{
			/*
An exception occurred when decompiling this method (0600CD97)

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: 0x0600CD98 RID: 52632 RVA: 0x002F3434 File Offset: 0x002F1634
		[Token(Token = "0x600CD98")]
		[Address(RVA = "0x196F970", Offset = "0x196E770", VA = "0x18196F970")]
		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: 0x0600CD99 RID: 52633 RVA: 0x002F3568 File Offset: 0x002F1768
		// Note: this type is marked as 'beforefieldinit'.
		[Token(Token = "0x600CD99")]
		[Address(RVA = "0x1971330", Offset = "0x1970130", VA = "0x181971330")]
		static InflateBlocks()
		{
			int[] array = new int[19];
			RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.1FDC8DB567F5AAA7068D0D2A601CD71657CBDF38).FieldHandle);
			InflateBlocks.border = array;
		}

		// Token: 0x0400830C RID: 33548
		[Token(Token = "0x400830C")]
		private const int MANY = 1440;

		// Token: 0x0400830D RID: 33549
		[Token(Token = "0x400830D")]
		internal static readonly int[] border;

		// Token: 0x0400830E RID: 33550
		[FieldOffset(Offset = "0x10")]
		[Token(Token = "0x400830E")]
		private InflateBlocks.InflateBlockMode mode;

		// Token: 0x0400830F RID: 33551
		[FieldOffset(Offset = "0x14")]
		[Token(Token = "0x400830F")]
		internal int left;

		// Token: 0x04008310 RID: 33552
		[FieldOffset(Offset = "0x18")]
		[Token(Token = "0x4008310")]
		internal int table;

		// Token: 0x04008311 RID: 33553
		[FieldOffset(Offset = "0x1C")]
		[Token(Token = "0x4008311")]
		internal int index;

		// Token: 0x04008312 RID: 33554
		[FieldOffset(Offset = "0x20")]
		[Token(Token = "0x4008312")]
		internal int[] blens;

		// Token: 0x04008313 RID: 33555
		[FieldOffset(Offset = "0x28")]
		[Token(Token = "0x4008313")]
		internal int[] bb;

		// Token: 0x04008314 RID: 33556
		[FieldOffset(Offset = "0x30")]
		[Token(Token = "0x4008314")]
		internal int[] tb;

		// Token: 0x04008315 RID: 33557
		[FieldOffset(Offset = "0x38")]
		[Token(Token = "0x4008315")]
		internal InflateCodes codes;

		// Token: 0x04008316 RID: 33558
		[FieldOffset(Offset = "0x40")]
		[Token(Token = "0x4008316")]
		internal int last;

		// Token: 0x04008317 RID: 33559
		[FieldOffset(Offset = "0x48")]
		[Token(Token = "0x4008317")]
		internal ZlibCodec _codec;

		// Token: 0x04008318 RID: 33560
		[FieldOffset(Offset = "0x50")]
		[Token(Token = "0x4008318")]
		internal int bitk;

		// Token: 0x04008319 RID: 33561
		[FieldOffset(Offset = "0x54")]
		[Token(Token = "0x4008319")]
		internal int bitb;

		// Token: 0x0400831A RID: 33562
		[FieldOffset(Offset = "0x58")]
		[Token(Token = "0x400831A")]
		internal int[] hufts;

		// Token: 0x0400831B RID: 33563
		[FieldOffset(Offset = "0x60")]
		[Token(Token = "0x400831B")]
		internal byte[] window;

		// Token: 0x0400831C RID: 33564
		[FieldOffset(Offset = "0x68")]
		[Token(Token = "0x400831C")]
		internal int end;

		// Token: 0x0400831D RID: 33565
		[FieldOffset(Offset = "0x6C")]
		[Token(Token = "0x400831D")]
		internal int readAt;

		// Token: 0x0400831E RID: 33566
		[FieldOffset(Offset = "0x70")]
		[Token(Token = "0x400831E")]
		internal int writeAt;

		// Token: 0x0400831F RID: 33567
		[FieldOffset(Offset = "0x78")]
		[Token(Token = "0x400831F")]
		internal object checkfn;

		// Token: 0x04008320 RID: 33568
		[FieldOffset(Offset = "0x80")]
		[Token(Token = "0x4008320")]
		internal uint check;

		// Token: 0x04008321 RID: 33569
		[FieldOffset(Offset = "0x88")]
		[Token(Token = "0x4008321")]
		internal InfTree inftree;

		// Token: 0x02001FA9 RID: 8105
		[Token(Token = "0x2001FA9")]
		private enum InflateBlockMode
		{
			// Token: 0x04008323 RID: 33571
			[Token(Token = "0x4008323")]
			TYPE,
			// Token: 0x04008324 RID: 33572
			[Token(Token = "0x4008324")]
			LENS,
			// Token: 0x04008325 RID: 33573
			[Token(Token = "0x4008325")]
			STORED,
			// Token: 0x04008326 RID: 33574
			[Token(Token = "0x4008326")]
			TABLE,
			// Token: 0x04008327 RID: 33575
			[Token(Token = "0x4008327")]
			BTREE,
			// Token: 0x04008328 RID: 33576
			[Token(Token = "0x4008328")]
			DTREE,
			// Token: 0x04008329 RID: 33577
			[Token(Token = "0x4008329")]
			CODES,
			// Token: 0x0400832A RID: 33578
			[Token(Token = "0x400832A")]
			DRY,
			// Token: 0x0400832B RID: 33579
			[Token(Token = "0x400832B")]
			DONE,
			// Token: 0x0400832C RID: 33580
			[Token(Token = "0x400832C")]
			BAD
		}
	}
}