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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | #region License/* FNA - XNA4 Reimplementation for Desktop Platforms * Copyright 2009-2016 Ethan Lee and the MonoGame Team * * Released under the Microsoft Public License. * See LICENSE for details. */#endregion#region Using Statementsusing System;#endregionnamespace Microsoft.Xna.Framework.Graphics.PackedVector{ /// <summary> /// Packed vector type containing unsigned normalized values, ranging from 0 to 1, using /// 4 bits each for x, y, z, and w. /// </summary> public struct Bgra4444 : IPackedVector<UInt16>, IEquatable<Bgra4444> { #region Public Properties /// <summary> /// Gets and sets the packed value. /// </summary> [CLSCompliant(false)] public UInt16 PackedValue { get { return packedValue; } set { packedValue = value; } } #endregion #region Private Variables private UInt16 packedValue; #endregion #region Public Constructors /// <summary> /// Creates a new instance of Bgra4444. /// </summary> /// <param name="x">The x component</param> /// <param name="y">The y component</param> /// <param name="z">The z component</param> /// <param name="w">The w component</param> public Bgra4444(float x, float y, float z, float w) { packedValue = Pack(x, y, z, w); } /// <summary> /// Creates a new instance of Bgra4444. /// </summary> /// <param name="vector"> /// Vector containing the components for the packed vector. /// </param> public Bgra4444(Vector4 vector) { packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W); } #endregion #region Public Methods /// <summary> /// Gets the packed vector in Vector4 format. /// </summary> /// <returns>The packed vector in Vector4 format</returns> public Vector4 ToVector4() { const float maxVal = 1 / 15.0f; return new Vector4( ((packedValue >> 8) & 0x0F) * maxVal, ((packedValue >> 4) & 0x0F) * maxVal, (packedValue & 0x0F) * maxVal, ((packedValue >> 12) & 0x0F) * maxVal ); } #endregion #region IPackedVector Methods /// <summary> /// Sets the packed vector from a Vector4. /// </summary> /// <param name="vector">Vector containing the components.</param> void IPackedVector.PackFromVector4(Vector4 vector) { packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W); } #endregion #region Public Static Operators and Override Methods /// <summary> /// Compares an object with the packed vector. /// </summary> /// <param name="obj">The object to compare.</param> /// <returns>True if the object is equal to the packed vector.</returns> public override bool Equals(object obj) { return (obj is Bgra4444) && Equals((Bgra4444) obj); } /// <summary> /// Compares another Bgra4444 packed vector with the packed vector. /// </summary> /// <param name="other">The Bgra4444 packed vector to compare.</param> /// <returns>True if the packed vectors are equal.</returns> public bool Equals(Bgra4444 other) { return packedValue == other.packedValue; } /// <summary> /// Gets a string representation of the packed vector. /// </summary> /// <returns>A string representation of the packed vector.</returns> public override string ToString() { return ToVector4().ToString(); } /// <summary> /// Gets a hash code of the packed vector. /// </summary> /// <returns>The hash code for the packed vector.</returns> public override int GetHashCode() { return packedValue.GetHashCode(); } public static bool operator ==(Bgra4444 lhs, Bgra4444 rhs) { return lhs.packedValue == rhs.packedValue; } public static bool operator !=(Bgra4444 lhs, Bgra4444 rhs) { return lhs.packedValue != rhs.packedValue; } #endregion #region Private Static Pack Method private static UInt16 Pack(float x, float y, float z, float w) { return (UInt16) ( (((int) (MathHelper.Clamp(w, 0, 1) * 15.0f) & 0x0F) << 12) | (((int) (MathHelper.Clamp(x, 0, 1) * 15.0f) & 0x0F) << 8) | (((int) (MathHelper.Clamp(y, 0, 1) * 15.0f) & 0x0F) << 4) | ((int) (MathHelper.Clamp(z, 0, 1) * 15.0f) & 0x0F) ); } #endregion }} |
