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Utility class.
public static class DXUtilThe multiplier for conversion from radians to degrees.
public const float ToDegrees = 57.29578The multiplier for conversion from degrees to radians.
public const float ToRadians = 0.017453292The value for which all absolute numbers smaller than are considered equal to zero.
public const float ZeroTolerance = 1E-06Allocate an aligned memory buffer and clear it with a specified value (0 by default).
public static IntPtr AllocateClearedMemory(int sizeInBytes, byte clearValue = 0, int align = 16)sizeInBytes intSize of the buffer to allocate.
clearValue byteDefault value used to clear the buffer.
align intAlignment, 16 bytes by default.
A pointer to a buffer aligned.
To free this buffer, call FreeMemory(IntPtr).
Allocate an aligned memory buffer.
public static IntPtr AllocateMemory(int sizeInBytes, int align = 16)A pointer to a buffer aligned.
To free this buffer, call FreeMemory(IntPtr).
Test if there is an element in this enumeration.
public static bool Any<T>(IEnumerable<T> source)source IEnumerable<T>The enumerable source.
true if there is an element in this enumeration, false otherwise
TType of the element
Creates an Array of count elements with the given value.
public static T[] Array<T>(T value, int count)value Tcount intTBuilds a fast property getter from a type and a property info.
public static GetValueFastDelegate<T> BuildPropertyGetter<T>(Type customEffectType, PropertyInfo propertyInfo)customEffectType TypeType of the custom effect.
propertyInfo PropertyInfoThe property info to get the value from.
A compiled delegate.
TType of the getter.
Builds a fast property setter from a type and a property info.
public static SetValueFastDelegate<T> BuildPropertySetter<T>(Type customEffectType, PropertyInfo propertyInfo)customEffectType TypeType of the custom effect.
propertyInfo PropertyInfoThe property info to set the value to.
A compiled delegate.
TType of the setter.
Clamps the specified value.
public static int Clamp(int value, int min, int max)The result of clamping a value between min and max
Clamps the specified value.
public static float Clamp(float value, float min, float max)The result of clamping a value between min and max
Clears the memory.
public static void ClearMemory(IntPtr dest, byte value, int sizeInBytesToClear)Compares two collection, element by elements.
public static bool Compare(IEnumerator leftIt, IEnumerator rightIt)leftIt IEnumeratorA "from" enumerator.
rightIt IEnumeratorA "to" enumerator.
true if lists are identical; otherwise, false.
Compares two block of memory.
public static bool CompareMemory(IntPtr from, IntPtr against, int sizeToCompare)from IntPtrThe pointer to compare from.
against IntPtrThe pointer to compare against.
sizeToCompare intThe size in bytes to compare.
true if the buffers are equivalent; otherwise, false.
Converts Bool array to bool array.
public static bool[] ConvertToBoolArray(Bool[] array)array Bool[]The array.
Converted array of bool.
Native memcpy.
public static void CopyMemory(IntPtr dest, IntPtr src, int sizeInBytesToCopy)dest IntPtrThe destination memory location.
src IntPtrThe source memory location.
sizeInBytesToCopy intThe byte count.
Safely dispose a referencem if not null, and set it to null after dispose.
public static void Dispose<T>(ref T comObject) where T : class, IDisposablecomObject TObject to dispose.
TThe type of COM interface to dispose.
The reference will be set to null after dispose.
Selects distinct elements from an enumeration.
public static IEnumerable<TSource> Distinct<TSource>(IEnumerable<TSource> source, IEqualityComparer<TSource> comparer = null)source IEnumerable<TSource>The source.
comparer IEqualityComparer<TSource>The comparer.
A enumeration of selected values
TSourceThe type of the T source.
Releases native pointers to already disposed shadow objects.
public static void FreeDisposedShadowPointers()Call this method when all unmanaged objects using shadows are destroyed.
Allocate an aligned memory buffer.
public static void FreeMemory(IntPtr alignedBuffer)alignedBuffer IntPtrThe buffer must have been allocated with AllocateMemory(int, int).
Gets the custom attribute.
public static T GetCustomAttribute<T>(MemberInfo memberInfo, bool inherited = false) where T : AttributememberInfo MemberInfoThe member info.
inherited boolif set to true [inherited].
The custom attribute or null if not found.
TType of the custom attribute.
Gets the custom attributes.
public static IEnumerable<T> GetCustomAttributes<T>(MemberInfo memberInfo, bool inherited = false) where T : AttributememberInfo MemberInfoThe member info.
inherited boolif set to true [inherited].
The custom attribute or null if not found.
TType of the custom attribute.
Gets the Guid from a type.
public static Guid GetGuidFromType(Type type)type TypeThe type.
The guid associated with this type.
Determines whether fromType can be assigned to toType.
public static bool IsAssignableFrom(Type toType, Type fromType)true if [is assignable from] [the specified to type]; otherwise, false.
Determines whether the specified type to test is an enum.
public static bool IsEnum(Type typeToTest)typeToTest TypeThe type to test.
true if the specified type to test is an enum; otherwise, false.
Determines whether the specified value is close to one (1.0f).
public static bool IsOne(float a)a floatThe floating value.
true if the specified value is close to one (1.0f); otherwise, false.
Determines whether the specified type to test is a value type.
public static bool IsValueType(Type typeToTest)typeToTest TypeThe type to test.
true if the specified type to test is a value type; otherwise, false.
Determines whether the specified value is close to zero (0.0f).
public static bool IsZero(float a)a floatThe floating value.
true if the specified value is close to zero (0.0f); otherwise, false.
String helper join method to display an enumrable of object as a single string.
public static string Join(string separator, IEnumerator elements)separator stringThe separator.
elements IEnumeratorThe enumerable.
A string with array elements serparated by the seperator.
Interpolates between two values using a linear function by a given amount.
public static double Lerp(double from, double to, double amount)from doubleValue to interpolate from.
to doubleValue to interpolate to.
amount doubleInterpolation amount.
The result of linear interpolation of values based on the amount.
See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/
Interpolates between two values using a linear function by a given amount.
public static float Lerp(float from, float to, float amount)from floatValue to interpolate from.
to floatValue to interpolate to.
amount floatInterpolation amount.
The result of linear interpolation of values based on the amount.
See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/
Checks if a and b are almost equals, taking into account the magnitude of floating point numbers. See Remarks. See remarks.
public static bool NearEqual(float a, float b)true if a almost equal to b, false otherwise
The code is using the technique described by Bruce Dawson in Comparing Floating point numbers 2012 edition.
Pins the specified source and call an action with the pinned pointer.
public static void Pin<T>(ref T source, Action<IntPtr> pinAction) where T : structTThe type of the structure to pin.
Pins the specified source and call an action with the pinned pointer.
public static void Pin<T>(T[] source, Action<IntPtr> pinAction) where T : structsource T[]The source array.
pinAction Action<IntPtr>The pin action to perform on the pinned pointer.
TThe type of the structure to pin.
Converts a pointer to a null-terminating string up to maxLength characters to a .Net string.
public static string PtrToStringUni(IntPtr pointer, int maxLength)The converted string.
Reads the specified T data from a memory location.
public static IntPtr ReadAndPosition<T>(IntPtr source, ref T data) where T : structsource IntPtrMemory location to read from.
data TThe data write to.
source pointer + sizeof(T).
TType of a data to read.
Reads the specified T data from a memory location.
public static void ReadOut<T>(IntPtr source, out T data) where T : structsource IntPtrMemory location to read from.
data TThe data write to.
TType of a data to read.
Read stream to a byte[] buffer.
public static byte[] ReadStream(Stream stream, ref int readLength)A byte[] buffer.
Reads the specified T data from a memory location.
public static T Read<T>(IntPtr source) where T : structsource IntPtrMemory location to read from.
The data read from the memory location.
TType of a data to read.
Reads the specified T data from a memory location.
public static void Read<T>(IntPtr source, ref T data) where T : structsource IntPtrMemory location to read from.
data TThe data write to.
TType of a data to read.
Reads the specified array T[] data from a memory location.
public static IntPtr Read<T>(IntPtr source, T[] data, int offset, int count) where T : structsource IntPtrMemory location to read from.
data T[]The data write to.
offset intThe offset in the array to write to.
count intThe number of T element to read from the memory location.
source pointer + sizeof(T) * count.
TType of a data to read.
Select elements from an enumeration.
public static IEnumerable<TResult> SelectMany<TSource, TResult>(IEnumerable<TSource> source, Func<TSource, IEnumerable<TResult>> selector)source IEnumerable<TSource>The source.
selector Func<TSource, IEnumerable<TResult>>The selector.
A enumeration of selected values
TSourceThe type of the T source.
TResultThe type of the T result.
Return the sizeof a struct from a CLR. Equivalent to sizeof operator but works on generics too.
public static int SizeOf<T>() where T : structSize of this struct.
TA struct to evaluate.
Return the sizeof an array of struct. Equivalent to sizeof operator but works on generics too.
public static int SizeOf<T>(T[] array) where T : structarray T[]The array of struct to evaluate.
Size in bytes of this array of struct.
TA struct.
Suspends the current thread.
public static void Sleep(TimeSpan sleepTimeInMillis)sleepTimeInMillis TimeSpanThe duration to sleep in milliseconds.
Copies the contents of a managed String into unmanaged memory, converting into ANSI format as it copies.
public static IntPtr StringToHGlobalAnsi(string s)s stringA managed string to be copied.
The address, in unmanaged memory, to where s was copied, or IntPtr.Zero if s is null.
Copies the contents of a managed String into unmanaged memory.
public static IntPtr StringToHGlobalUni(string s)s stringA managed string to be copied.
The address, in unmanaged memory, to where s was copied, or IntPtr.Zero if s is null.
Transforms an IEnumerable<T> to an array of T.
public static T[] ToArray<T>(IEnumerable<T> source)source IEnumerable<T>The enumerable source.
an array of T
TType of the element
Converts a structured array to an equivalent byte array.
public static byte[] ToByteArray<T>(T[] source) where T : structsource T[]The source array.
Converted byte array.
TThe type of source array.
Checks if a - b are almost equals within a float epsilon.
public static bool WithinEpsilon(float a, float b, float epsilon)true if a almost equal to b within a float epsilon, false otherwise
Writes the specified T data to a memory location.
public static IntPtr WriteAndPosition<T>(IntPtr destination, ref T data) where T : structdestination IntPtrMemory location to write to.
data TThe data to write.
destination pointer + sizeof(T).
TType of a data to write.
Writes the specified T data to a memory location.
public static void Write<T>(IntPtr destination, ref T data) where T : structdestination IntPtrMemory location to write to.
data TThe data to write.
TType of a data to write.
Writes the specified array T[] data to a memory location.
public static IntPtr Write<T>(IntPtr destination, T[] data, int offset, int count) where T : structdestination IntPtrMemory location to write to.
data T[]The array of T data to write.
offset intThe offset in the array to read from.
count intThe number of T element to write to the memory location.
destination pointer + sizeof(T) * count.
TType of a data to write.