< Summary

Class:GDX.Collections.BitArray512
Assembly:GDX
File(s):D:/BuildAgent/work/GDX-Documentation/Projects/GDX_Development/Packages/com.dotbunny.gdx/GDX/Collections/BitArray512.cs
Covered lines:0
Uncovered lines:18
Coverable lines:18
Total lines:155
Line coverage:0% (0 of 18)
Covered branches:0
Total branches:0
Covered methods:0
Total methods:2
Method coverage:0% (0 of 2)

Coverage History

File(s)

D:/BuildAgent/work/GDX-Documentation/Projects/GDX_Development/Packages/com.dotbunny.gdx/GDX/Collections/BitArray512.cs

#LineLine coverage
 1// Copyright (c) 2020-2022 dotBunny Inc.
 2// dotBunny licenses this file to you under the BSL-1.0 license.
 3// See the LICENSE file in the project root for more information.
 4
 5using System.Runtime.CompilerServices;
 6using System.Runtime.InteropServices;
 7
 8namespace GDX.Collections
 9{
 10    /// <summary>
 11    ///     A 512-bit array.
 12    /// </summary>
 13    /// <example>
 14    ///     Useful for packing a bunch of data with known indices tightly.
 15    ///     <code>
 16    ///         if(myBitArray512[1])
 17    ///         {
 18    ///             BeAwesome();
 19    ///         }
 20    ///     </code>
 21    /// </example>
 22    [StructLayout(LayoutKind.Sequential)]
 23    public struct BitArray512
 24    {
 25        /// <summary>
 26        ///     First reserved <see cref="System.Int32" /> memory block.
 27        /// </summary>
 28        /// <remarks>Indices 0-31</remarks>
 29        public int Bits0;
 30
 31        /// <summary>
 32        ///     Second reserved <see cref="System.Int32" /> memory block.
 33        /// </summary>
 34        /// <remarks>Indices 32-63</remarks>
 35        public int Bits1;
 36
 37        /// <summary>
 38        ///     Third reserved <see cref="System.Int32" /> memory block.
 39        /// </summary>
 40        /// <remarks>Indices 64-95</remarks>
 41        public int Bits2;
 42
 43        /// <summary>
 44        ///     Fourth reserved <see cref="System.Int32" /> memory block.
 45        /// </summary>
 46        /// <remarks>Indices 96-127</remarks>
 47        public int Bits3;
 48
 49        /// <summary>
 50        ///     Fifth reserved <see cref="System.Int32" /> memory block.
 51        /// </summary>
 52        /// <remarks>Indices 128-159</remarks>
 53        public int Bits4;
 54
 55        /// <summary>
 56        ///     Sixth reserved <see cref="System.Int32" /> memory block.
 57        /// </summary>
 58        /// <remarks>Indices 160-191</remarks>
 59        public int Bits5;
 60
 61        /// <summary>
 62        ///     Seventh reserved <see cref="System.Int32" /> memory block.
 63        /// </summary>
 64        /// <remarks>Indices 192-223</remarks>
 65        public int Bits6;
 66
 67        /// <summary>
 68        ///     Eighth reserved <see cref="System.Int32" /> memory block.
 69        /// </summary>
 70        /// <remarks>Indices 224-255</remarks>
 71        public int Bits7;
 72
 73        /// <summary>
 74        ///     Ninth reserved <see cref="System.Int32" /> memory block.
 75        /// </summary>
 76        /// <remarks>Indices 256-287</remarks>
 77        public int Bits8;
 78
 79        /// <summary>
 80        ///     Tenth reserved <see cref="System.Int32" /> memory block.
 81        /// </summary>
 82        /// <remarks>Indices 288-319</remarks>
 83        public int Bits9;
 84
 85        /// <summary>
 86        ///     Eleventh reserved <see cref="System.Int32" /> memory block.
 87        /// </summary>
 88        /// <remarks>Indices 320-351</remarks>
 89        public int Bits10;
 90
 91        /// <summary>
 92        ///     Twelfth reserved <see cref="System.Int32" /> memory block.
 93        /// </summary>
 94        /// <remarks>Indices 352-383</remarks>
 95        public int Bits11;
 96
 97        /// <summary>
 98        ///     Thirteenth reserved <see cref="System.Int32" /> memory block.
 99        /// </summary>
 100        /// <remarks>Indices 384-415</remarks>
 101        public int Bits12;
 102
 103        /// <summary>
 104        ///     Fourteenth reserved <see cref="System.Int32" /> memory block.
 105        /// </summary>
 106        /// <remarks>Indices 416-447</remarks>
 107        public int Bits13;
 108
 109        /// <summary>
 110        ///     Fifteenth reserved <see cref="System.Int32" /> memory block.
 111        /// </summary>
 112        /// <remarks>Indices 448-479</remarks>
 113        public int Bits14;
 114
 115        /// <summary>
 116        ///     Sixteenth reserved <see cref="System.Int32" /> memory block.
 117        /// </summary>
 118        /// <remarks>Indices 480-511</remarks>
 119        public int Bits15;
 120
 121        /// <summary>
 122        ///     Access bit in array.
 123        /// </summary>
 124        /// <param name="index">Target bit index.</param>
 125        public unsafe bool this[int index]
 126        {
 127            [MethodImpl(MethodImplOptions.AggressiveInlining)]
 128            get
 0129            {
 0130                int intIndex = (index & 511) >> 5;
 0131                int bitIndex = index & 31;
 132                int intContainingBits;
 133
 0134                fixed (BitArray512* array = &this)
 0135                {
 0136                    intContainingBits = ((int*)array)[intIndex];
 0137                }
 138
 0139                return (intContainingBits & (1 << bitIndex)) != 0;
 0140            }
 141            [MethodImpl(MethodImplOptions.AggressiveInlining)]
 142            set
 0143            {
 0144                int intIndex = (index & 511) >> 5;
 0145                int bitIndex = index & 31;
 0146                int negativeVal = value ? -1 : 0;
 147
 0148                fixed (int* array = &Bits0)
 0149                {
 0150                    array[intIndex] ^= (negativeVal ^ array[intIndex]) & (1 << bitIndex);
 0151                }
 0152            }
 153        }
 154    }
 155}