niko
348 lines
9.3 KiB
C#
348 lines
9.3 KiB
C#
using System;
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using System.Runtime.CompilerServices;
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using Cpp2IlInjected;
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namespace BestHTTP.Decompression.Zlib
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{
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// Token: 0x0200208E RID: 8334
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[Token(Token = "0x200208E")]
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internal sealed class ZTree
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{
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// Token: 0x0600D179 RID: 53625 RVA: 0x002FCB08 File Offset: 0x002FAD08
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[Token(Token = "0x600D179")]
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[Address(RVA = "0x241CEC0", Offset = "0x241BEC0", VA = "0x18241CEC0")]
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internal static int DistanceCode(int dist)
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{
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if (dist < 256)
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{
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sbyte[] dist_code = ZTree._dist_code;
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return dist;
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}
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sbyte[] dist_code2 = ZTree._dist_code;
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throw new NullReferenceException();
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}
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// Token: 0x0600D17A RID: 53626 RVA: 0x002FCB30 File Offset: 0x002FAD30
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[Token(Token = "0x600D17A")]
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[Address(RVA = "0x241D8E0", Offset = "0x241C8E0", VA = "0x18241D8E0")]
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internal void gen_bitlen(DeflateManager s)
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{
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StaticTree staticTree = this.staticTree;
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short[] array = this.dyn_tree;
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short[] treeCodes = staticTree.treeCodes;
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int num = 0;
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int[] extraBits = staticTree.extraBits;
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int extraBase = staticTree.extraBase;
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int num2 = staticTree.maxLength;
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int num3 = 0;
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short[] bl_count = s.bl_count;
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num++;
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bl_count[0] = (short)num3;
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int[] heap = s.heap;
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int num4 = s.heap_max;
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num4++;
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array[0] = (short)num3;
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int num5 = s.heap_max;
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num5++;
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int[] heap2 = s.heap;
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int num6 = array.Length;
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int num7 = heap2[num5];
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num5 += num5;
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num5++;
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num5++;
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num6 = num2;
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if (num5 <= num2)
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{
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num6 = num5;
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}
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array[0] = (short)num6;
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short[] bl_count2 = s.bl_count;
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num5 = num6;
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num7 -= extraBase;
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int num8 = extraBits[num7];
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int num9 = num7 * num7;
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while (treeCodes == 0)
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{
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}
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num9 += num8;
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if (num != 0)
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{
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short[] bl_count3 = s.bl_count;
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int num10 = num2 - 1;
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short num11 = bl_count3[num10];
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bl_count3[0] = num11;
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short[] bl_count4 = s.bl_count;
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num10++;
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short[] bl_count5 = s.bl_count;
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if (num2 != 0)
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{
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short[] bl_count6 = s.bl_count;
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if (num10 != 0)
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{
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int[] heap3 = s.heap;
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num2 = num5;
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int num12 = heap3[num2];
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int num13 = array.Length;
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num12 += num12;
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int num14 = num12 + 1;
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if (num6 != num2)
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{
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num13 = num2;
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num13 -= num6;
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array[0] = (short)num2;
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}
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while (num10 != 0)
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{
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}
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}
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while (num10 != 0)
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{
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}
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}
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}
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}
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// Token: 0x0600D17B RID: 53627 RVA: 0x002FCCD0 File Offset: 0x002FAED0
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[Token(Token = "0x600D17B")]
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[Address(RVA = "0x241D1E0", Offset = "0x241C1E0", VA = "0x18241D1E0")]
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internal void build_tree(DeflateManager s)
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{
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StaticTree staticTree = this.staticTree;
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short[] array = this.dyn_tree;
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short[] treeCodes = staticTree.treeCodes;
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int num = staticTree.elems;
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int num2 = 0;
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s.heap_len = num2;
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int heap_SIZE = ZTree.HEAP_SIZE;
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s.heap_max = heap_SIZE;
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if (num > 0)
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{
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int length = array.Length;
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if ("{il2cpp array field local3->}" == num2)
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{
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num2++;
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array[0] = (short)num2;
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}
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int heap_len = s.heap_len;
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int[] heap = s.heap;
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int num3 = heap_len + 1;
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s.heap_len = num3;
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int num4 = heap_len + 1;
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heap[0] = num2;
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sbyte[] depth = s.depth;
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num2++;
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num2 += 2;
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}
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int num5 = s.heap_len;
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if (num5 < 2)
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{
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int[] heap2 = s.heap;
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int num6 = num5 + 1;
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s.heap_len = num6;
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if (num2 < 2)
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{
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}
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num5++;
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heap2[0] = num2;
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uint num7;
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array[0] = (short)num7;
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sbyte[] depth2 = s.depth;
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while (treeCodes == 0)
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{
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}
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}
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this.max_code = 1;
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int i = s.heap_len;
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i -= 0;
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s.pqdownheap(array, i);
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while (i >= 1)
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{
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}
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int[] heap3 = s.heap;
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int heap_len2 = s.heap_len;
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int num8 = heap3[0];
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int num9 = heap_len2 - 1;
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s.heap_len = num9;
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int length2 = heap3.Length;
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int num10 = heap3[heap_len2];
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heap3[0] = num10;
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uint num11;
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s.pqdownheap(array, (int)num11);
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int[] heap4 = s.heap;
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int heap_max = s.heap_max;
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int num12 = heap4[0];
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int num13 = heap_max - 1;
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s.heap_max = num13;
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int num14 = heap_max - 1;
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heap4[0] = num8;
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int heap_max2 = s.heap_max;
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int[] heap5 = s.heap;
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int num15 = heap_max2 - 1;
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s.heap_max = num15;
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int num16 = heap_max2 - 1;
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heap5[0] = num12;
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int length3 = array.Length;
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short num17 = array[heap5];
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array[0] = num17;
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int length4 = s.depth.Length;
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sbyte b2;
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sbyte b3;
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byte b = Math.Max((byte)b2, (byte)b3);
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array[0] = (short)num;
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int num18 = heap_max2 + 1;
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array[0] = (short)num;
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i += 2;
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int[] heap6 = s.heap;
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num++;
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heap6[0] = num;
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s.pqdownheap(array, 1);
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while (s.heap_len >= 2)
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{
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}
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int heap_max3 = s.heap_max;
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int[] heap7 = s.heap;
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int num19 = heap_max3 - 1;
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s.heap_max = num19;
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int num20 = s.heap[0];
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int num21 = heap_max3 - 1;
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heap7[0] = num20;
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short[] bl_count = s.bl_count;
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int num22;
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ZTree.gen_codes(array, num22, bl_count);
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}
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// Token: 0x0600D17C RID: 53628 RVA: 0x002FCF74 File Offset: 0x002FB174
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[Token(Token = "0x600D17C")]
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[Address(RVA = "0x241DE00", Offset = "0x241CE00", VA = "0x18241DE00")]
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internal static void gen_codes(short[] tree, int max_code, short[] bl_count)
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{
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int num = InternalConstants.MAX_BITS;
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num++;
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short[] array = new short[num];
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int i = 0;
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short num2;
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i += (int)num2;
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i += i;
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array[0] = (short)i;
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if (1 != 0)
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{
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short num4;
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short num3 = num4 + 1;
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array[0] = num3;
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int num5 = 0;
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num5 += num5;
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tree[0] = (short)num5;
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}
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i++;
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i += 2;
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while (i <= max_code)
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{
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}
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}
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// Token: 0x0600D17D RID: 53629 RVA: 0x002FCFDC File Offset: 0x002FB1DC
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[Token(Token = "0x600D17D")]
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[Address(RVA = "0x427250", Offset = "0x426250", VA = "0x180427250")]
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internal static int bi_reverse(int code, int len)
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{
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int num = 0;
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int num2 = len - 1;
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return num + num;
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}
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// Token: 0x0600D17E RID: 53630 RVA: 0x002FCFF4 File Offset: 0x002FB1F4
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[Token(Token = "0x600D17E")]
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[Address(RVA = "0x412370", Offset = "0x411370", VA = "0x180412370")]
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public ZTree()
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{
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}
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// Token: 0x0600D17F RID: 53631 RVA: 0x002FD008 File Offset: 0x002FB208
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// Note: this type is marked as 'beforefieldinit'.
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[Token(Token = "0x600D17F")]
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[Address(RVA = "0x241CFB0", Offset = "0x241BFB0", VA = "0x18241CFB0")]
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static ZTree()
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{
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int[] array = new int[29];
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RuntimeHelpers.InitializeArray(array, fieldof(<PrivateImplementationDetails>.67C0E784F3654B008A81E2988588CF4956CCF3DA).FieldHandle);
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ZTree.ExtraLengthBits = array;
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int[] array2 = new int[30];
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RuntimeHelpers.InitializeArray(array2, fieldof(<PrivateImplementationDetails>.79D521E6E3E55103005E9CC3FA43B3174FAF090F).FieldHandle);
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ZTree.ExtraDistanceBits = array2;
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int[] array3 = new int[19];
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RuntimeHelpers.InitializeArray(array3, fieldof(<PrivateImplementationDetails>.8457F44B035C9073EE2D1F132D0A8AF5631DCDC8).FieldHandle);
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ZTree.extra_blbits = array3;
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sbyte[] array4 = new sbyte[19];
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RuntimeHelpers.InitializeArray(array4, fieldof(<PrivateImplementationDetails>.9F8365E9D6C62D3B47026EC465B05A7B5526B5CD).FieldHandle);
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ZTree.bl_order = array4;
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sbyte[] array5 = new sbyte[512];
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RuntimeHelpers.InitializeArray(array5, fieldof(<PrivateImplementationDetails>.3544182260B8A15D332367E48C7530FC0E901FD3).FieldHandle);
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ZTree._dist_code = array5;
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sbyte[] array6 = new sbyte[256];
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RuntimeHelpers.InitializeArray(array6, fieldof(<PrivateImplementationDetails>.6A316789EED01119DE92841832701A40AB0CABD6).FieldHandle);
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ZTree.LengthCode = array6;
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int[] array7 = new int[29];
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RuntimeHelpers.InitializeArray(array7, fieldof(<PrivateImplementationDetails>.2E868D9F2085DF93F11F58DE61C05E0D8A8F4A71).FieldHandle);
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ZTree.LengthBase = array7;
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int[] array8 = new int[30];
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RuntimeHelpers.InitializeArray(array8, fieldof(<PrivateImplementationDetails>.5581A70566F03554D8048EDBFC6E6B399AF9BCB1).FieldHandle);
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ZTree.DistanceBase = array8;
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}
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// Token: 0x0400851A RID: 34074
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[Token(Token = "0x400851A")]
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private static readonly int HEAP_SIZE;
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// Token: 0x0400851B RID: 34075
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[Token(Token = "0x400851B")]
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internal static readonly int[] ExtraLengthBits;
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// Token: 0x0400851C RID: 34076
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[Token(Token = "0x400851C")]
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internal static readonly int[] ExtraDistanceBits;
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// Token: 0x0400851D RID: 34077
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[Token(Token = "0x400851D")]
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internal static readonly int[] extra_blbits;
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// Token: 0x0400851E RID: 34078
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[Token(Token = "0x400851E")]
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internal static readonly sbyte[] bl_order;
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// Token: 0x0400851F RID: 34079
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[Token(Token = "0x400851F")]
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internal const int Buf_size = 16;
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// Token: 0x04008520 RID: 34080
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[Token(Token = "0x4008520")]
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private static readonly sbyte[] _dist_code;
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// Token: 0x04008521 RID: 34081
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[Token(Token = "0x4008521")]
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internal static readonly sbyte[] LengthCode;
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// Token: 0x04008522 RID: 34082
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[Token(Token = "0x4008522")]
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internal static readonly int[] LengthBase;
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// Token: 0x04008523 RID: 34083
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[Token(Token = "0x4008523")]
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internal static readonly int[] DistanceBase;
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// Token: 0x04008524 RID: 34084
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[FieldOffset(Offset = "0x10")]
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[Token(Token = "0x4008524")]
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internal short[] dyn_tree;
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// Token: 0x04008525 RID: 34085
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[FieldOffset(Offset = "0x18")]
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[Token(Token = "0x4008525")]
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internal int max_code;
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// Token: 0x04008526 RID: 34086
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[FieldOffset(Offset = "0x20")]
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[Token(Token = "0x4008526")]
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internal StaticTree staticTree;
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}
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}
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