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Utility.cs
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Utility.cs
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// MonoGame - Copyright (C) The MonoGame Team
// This file is subject to the terms and conditions defined in
// file 'LICENSE.txt', which is part of this source code package.
using System;
using System.Collections.Generic;
using System.IO;
using System.Runtime.InteropServices;
using Microsoft.Xna.Framework;
using NUnit.Framework;
namespace MonoGame.Tests {
public class MatrixComparer : IEqualityComparer<Matrix>
{
static public MatrixComparer Epsilon = new MatrixComparer(0.000001f);
private readonly float _epsilon;
private MatrixComparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Matrix x, Matrix y)
{
return Math.Abs(x.M11 - y.M11) < _epsilon &&
Math.Abs(x.M12 - y.M12) < _epsilon &&
Math.Abs(x.M13 - y.M13) < _epsilon &&
Math.Abs(x.M14 - y.M14) < _epsilon &&
Math.Abs(x.M21 - y.M21) < _epsilon &&
Math.Abs(x.M22 - y.M22) < _epsilon &&
Math.Abs(x.M23 - y.M23) < _epsilon &&
Math.Abs(x.M24 - y.M24) < _epsilon &&
Math.Abs(x.M31 - y.M31) < _epsilon &&
Math.Abs(x.M32 - y.M32) < _epsilon &&
Math.Abs(x.M33 - y.M33) < _epsilon &&
Math.Abs(x.M34 - y.M34) < _epsilon &&
Math.Abs(x.M41 - y.M41) < _epsilon &&
Math.Abs(x.M42 - y.M42) < _epsilon &&
Math.Abs(x.M43 - y.M43) < _epsilon &&
Math.Abs(x.M44 - y.M44) < _epsilon;
}
public int GetHashCode(Matrix obj)
{
throw new NotImplementedException();
}
}
public class ByteComparer : IEqualityComparer<byte>
{
static public ByteComparer Equal = new ByteComparer();
private ByteComparer()
{
}
public bool Equals(byte x, byte y)
{
return x == y;
}
public int GetHashCode(byte obj)
{
throw new NotImplementedException();
}
}
public class ColorComparer : IEqualityComparer<Color>
{
static public ColorComparer Equal = new ColorComparer();
private ColorComparer()
{
}
public bool Equals(Color x, Color y)
{
return x == y;
}
public int GetHashCode(Color obj)
{
throw new NotImplementedException();
}
}
public class FloatComparer : IEqualityComparer<float>
{
static public FloatComparer Epsilon = new FloatComparer(0.000001f);
private readonly float _epsilon;
private FloatComparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(float x, float y)
{
return Math.Abs(x - y) < _epsilon;
}
public int GetHashCode(float obj)
{
throw new NotImplementedException();
}
}
public class BoundingSphereComparer : IEqualityComparer<BoundingSphere>
{
static public BoundingSphereComparer Epsilon = new BoundingSphereComparer(0.000001f);
private readonly float _epsilon;
private BoundingSphereComparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(BoundingSphere x, BoundingSphere y)
{
return Math.Abs(x.Center.X - y.Center.X) < _epsilon &&
Math.Abs(x.Center.Y - y.Center.Y) < _epsilon &&
Math.Abs(x.Center.Z - y.Center.Z) < _epsilon &&
Math.Abs(x.Radius - y.Radius) < _epsilon;
}
public int GetHashCode(BoundingSphere obj)
{
throw new NotImplementedException();
}
}
public class Vector2Comparer : IEqualityComparer<Vector2>
{
static public Vector2Comparer Epsilon = new Vector2Comparer(0.000001f);
private readonly float _epsilon;
private Vector2Comparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Vector2 x, Vector2 y)
{
return Math.Abs(x.X - y.X) < _epsilon &&
Math.Abs(x.Y - y.Y) < _epsilon;
}
public int GetHashCode(Vector2 obj)
{
throw new NotImplementedException();
}
}
public class Vector3Comparer : IEqualityComparer<Vector3>
{
static public Vector3Comparer Epsilon = new Vector3Comparer(0.000001f);
private readonly float _epsilon;
private Vector3Comparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Vector3 x, Vector3 y)
{
return Math.Abs(x.X - y.X) < _epsilon &&
Math.Abs(x.Y - y.Y) < _epsilon &&
Math.Abs(x.Z - y.Z) < _epsilon;
}
public int GetHashCode(Vector3 obj)
{
throw new NotImplementedException();
}
}
public class Vector4Comparer : IEqualityComparer<Vector4>
{
static public Vector4Comparer Epsilon = new Vector4Comparer(0.000001f);
private readonly float _epsilon;
private Vector4Comparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Vector4 x, Vector4 y)
{
return Math.Abs(x.X - y.X) < _epsilon &&
Math.Abs(x.Y - y.Y) < _epsilon &&
Math.Abs(x.Z - y.Z) < _epsilon &&
Math.Abs(x.W - y.W) < _epsilon;
}
public int GetHashCode(Vector4 obj)
{
throw new NotImplementedException();
}
}
public class QuaternionComparer : IEqualityComparer<Quaternion>
{
static public QuaternionComparer Epsilon = new QuaternionComparer(0.000001f);
private readonly float _epsilon;
private QuaternionComparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Quaternion x, Quaternion y)
{
return Math.Abs(x.X - y.X) < _epsilon &&
Math.Abs(x.Y - y.Y) < _epsilon &&
Math.Abs(x.Z - y.Z) < _epsilon &&
Math.Abs(x.W - y.W) < _epsilon;
}
public int GetHashCode(Quaternion obj)
{
throw new NotImplementedException();
}
}
public class PlaneComparer : IEqualityComparer<Plane>
{
static public PlaneComparer Epsilon = new PlaneComparer(0.000001f);
private readonly float _epsilon;
private PlaneComparer(float epsilon)
{
_epsilon = epsilon;
}
public bool Equals(Plane x, Plane y)
{
return Math.Abs(x.Normal.X - y.Normal.X) < _epsilon &&
Math.Abs(x.Normal.Y - y.Normal.Y) < _epsilon &&
Math.Abs(x.Normal.Z - y.Normal.Z) < _epsilon &&
Math.Abs(x.D - y.D) < _epsilon;
}
public int GetHashCode(Plane obj)
{
throw new NotImplementedException();
}
}
public static class ArrayUtil
{
public static T[] ConvertTo<T>(byte[] source) where T : struct
{
var sizeOfDest = Marshal.SizeOf(typeof(T));
var count = source.Length / sizeOfDest;
var dest = new T[count];
var pinned = GCHandle.Alloc(source, GCHandleType.Pinned);
var pointer = pinned.AddrOfPinnedObject();
for (var i = 0; i < count; i++, pointer+=sizeOfDest)
dest[i] = (T)Marshal.PtrToStructure(pointer, typeof(T));
pinned.Free();
return dest;
}
public static byte[] ConvertFrom<T>(T[] source) where T : struct
{
var sizeOfSource = Marshal.SizeOf(typeof(T));
var count = source.Length;
var dest = new byte[sizeOfSource * count];
var pinned = GCHandle.Alloc(dest, GCHandleType.Pinned);
var pointer = pinned.AddrOfPinnedObject();
for (var i = 0; i < count; i++, pointer += sizeOfSource)
Marshal.StructureToPtr(source[i], pointer, true);
pinned.Free();
return dest;
}
}
static class MathUtility
{
public static void MinMax (int a, int b, out int min, out int max)
{
if (a > b)
{
min = b;
max = a;
}
else
{
min = a;
max = b;
}
}
}
static class Paths
{
private const string AssetFolder = "Assets";
private static readonly string AudioFolder = Path.Combine(AssetFolder, "Audio");
private static readonly string FontFolder = Path.Combine(AssetFolder, "Fonts");
private static readonly string ReferenceImageFolder = Path.Combine (AssetFolder, "ReferenceImages");
private static readonly string TextureFolder = Path.Combine (AssetFolder, "Textures");
private static readonly string EffectFolder = Path.Combine (AssetFolder, "Effects");
private static readonly string ModelFolder = Path.Combine (AssetFolder, "Models");
private static readonly string XmlFolder = Path.Combine(AssetFolder, "Xml");
private const string CapturedFrameFolder = "CapturedFrames";
private const string CapturedFrameDiffFolder = "Diffs";
public static string Asset (params string [] pathParts)
{
return Combine (AssetFolder, pathParts);
}
public static string Audio(params string[] pathParts)
{
return Combine(AudioFolder, pathParts);
}
public static string Font(params string[] pathParts)
{
return Combine (FontFolder, pathParts);
}
public static string Texture (params string [] pathParts)
{
return Combine (TextureFolder, pathParts);
}
public static string RawEffect(params string[] pathParts)
{
return Combine(EffectFolder, pathParts) + ".fx";
}
public static string CompiledEffect (params string [] pathParts)
{
string type;
#if XNA
type = "XNA";
#elif DIRECTX
type = "DirectX";
#elif DESKTOPGL
type = "OpenGL";
#else
throw new Exception("Make sure the effect path is set up correctly for this platform!");
#endif
var path = Combine(type, pathParts);
return Combine(EffectFolder, path);
}
public static string Model (params string [] pathParts)
{
return Combine (ModelFolder, pathParts);
}
public static string Xml(params string[] pathParts)
{
return Combine(XmlFolder, pathParts);
}
public static string ReferenceImage (params string [] pathParts)
{
return Combine (ReferenceImageFolder, pathParts);
}
public static string CapturedFrame (params string [] pathParts)
{
return Combine (CapturedFrameFolder, pathParts);
}
public static string CapturedFrameDiff (params string [] pathParts)
{
return Combine (CapturedFrameDiffFolder, pathParts);
}
private static string Combine (string head, params string [] tail)
{
return Path.Combine (head, Path.Combine (tail));
}
public static void SetStandardWorkingDirectory()
{
var directory = AppDomain.CurrentDomain.BaseDirectory;
Directory.SetCurrentDirectory(directory);
}
public static void AreEqual(string expected, string actual)
{
expected = Path.GetFullPath(expected);
actual = Path.GetFullPath(actual);
Assert.AreEqual(expected, actual, "Paths not equal!");
}
}
}