163 lines
3.0 KiB
C#
163 lines
3.0 KiB
C#
#region License
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/* MoonWorks - Game Development Framework
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* Copyright 2021 Evan Hemsley
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*/
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/* Derived from code by Ethan Lee (Copyright 2009-2021).
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* Released under the Microsoft Public License.
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* See fna.LICENSE for details.
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* Derived from code by the Mono.Xna Team (Copyright 2006).
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* Released under the MIT License. See monoxna.LICENSE for details.
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*/
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#endregion
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#region Using Statements
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using System;
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using MoonWorks.Math;
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#endregion
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namespace MoonWorks.Graphics
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{
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public struct NormalizedShort4 : IPackedVector<ulong>, IEquatable<NormalizedShort4>
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{
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#region Public Properties
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public ulong PackedValue
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{
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get
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{
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return packedValue;
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}
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set
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{
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packedValue = value;
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}
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}
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#endregion
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#region Private Variables
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private ulong packedValue;
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#endregion
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#region Public Constructors
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public NormalizedShort4(Vector4 vector)
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{
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packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W);
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}
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public NormalizedShort4(float x, float y, float z, float w)
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{
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packedValue = Pack(x, y, z, w);
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}
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#endregion
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#region Public Methods
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public Vector4 ToVector4()
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{
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const float maxVal = 0x7FFF;
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return new Vector4(
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((short) (packedValue & 0xFFFF)) / maxVal,
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((short) ((packedValue >> 0x10) & 0xFFFF)) / maxVal,
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((short) ((packedValue >> 0x20) & 0xFFFF)) / maxVal,
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((short) ((packedValue >> 0x30) & 0xFFFF)) / maxVal
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);
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}
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#endregion
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#region IPackedVector Methods
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void IPackedVector.PackFromVector4(Vector4 vector)
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{
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packedValue = Pack(vector.X, vector.Y, vector.Z, vector.W);
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}
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#endregion
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#region Public Static Operators and Override Methods
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public static bool operator !=(NormalizedShort4 a, NormalizedShort4 b)
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{
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return !a.Equals(b);
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}
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public static bool operator ==(NormalizedShort4 a, NormalizedShort4 b)
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{
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return a.Equals(b);
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}
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public override bool Equals(object obj)
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{
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return (obj is NormalizedShort4) && Equals((NormalizedShort4) obj);
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}
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public bool Equals(NormalizedShort4 other)
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{
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return packedValue.Equals(other.packedValue);
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}
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public override int GetHashCode()
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{
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return packedValue.GetHashCode();
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}
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public override string ToString()
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{
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return packedValue.ToString("X");
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}
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#endregion
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#region Private Static Pack Method
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private static ulong Pack(float x, float y, float z, float w)
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{
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const float max = 0x7FFF;
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const float min = -max;
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ulong word4 = (
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(ulong) MathHelper.Clamp(
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(float) System.Math.Round(x * max),
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min,
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max
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) & 0xFFFF
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);
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ulong word3 = (
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(ulong) MathHelper.Clamp(
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(float) System.Math.Round(y * max),
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min,
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max
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) & 0xFFFF
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) << 0x10;
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ulong word2 = (
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(ulong) MathHelper.Clamp(
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(float) System.Math.Round(z * max),
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min,
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max
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) & 0xFFFF
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) << 0x20;
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ulong word1 = (
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(ulong) MathHelper.Clamp(
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(float) System.Math.Round(w * max),
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min,
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max
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) & 0xFFFF
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) << 0x30;
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return (word4 | word3 | word2 | word1);
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}
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#endregion
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}
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}
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