GI.Cogl.Objects.Fixed

Fixed point number using a (16.16) notation.

Exported types

newtype Fixed

Memory-managed wrapper type.

Constructors

Fixed (ManagedPtr Fixed)

Instances

Eq Fixed

Defined in GI.Cogl.Objects.Fixed

Methods

(==) :: Fixed -> Fixed -> Bool

(/=) :: Fixed -> Fixed -> Bool

BoxedPtr Fixed

Defined in GI.Cogl.Objects.Fixed

Methods

boxedPtrCopy :: Fixed -> IO Fixed

boxedPtrFree :: Fixed -> IO ()

ManagedPtrNewtype Fixed

Defined in GI.Cogl.Objects.Fixed

Methods

toManagedPtr :: Fixed -> ManagedPtr Fixed

TypedObject Fixed

Defined in GI.Cogl.Objects.Fixed

Methods

glibType :: IO GType

HasParentTypes Fixed

Defined in GI.Cogl.Objects.Fixed

type ParentTypes Fixed

Defined in GI.Cogl.Objects.Fixed

type ParentTypes Fixed = '[] :: [Type]

class (BoxedPtr o, TypedObject o, IsDescendantOf Fixed o) => IsFixed o

Type class for types which can be safely cast to Fixed, for instance with toFixed.

Instances

(BoxedPtr o, TypedObject o, IsDescendantOf Fixed o) => IsFixed o

Defined in GI.Cogl.Objects.Fixed

toFixed :: (MonadIO m, IsFixed o) => o -> m Fixed

Cast to Fixed, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

pow2.

Getters

None.

Setters

None.

pow

fixedPow

Arguments

:: (HasCallStack, MonadIO m, IsFixed a)

=> Word32

x: base

-> a

y: CoglFixed exponent

-> m Word32

Returns: the power of x to the y

Calculates x to the y power.

Since: 1.0

pow2

fixedPow2

Arguments

:: (HasCallStack, MonadIO m, IsFixed a)

=> a

x: a CoglFixed number

-> m Word32

Returns: the power of 2 to the passed value

Calculates 2 to the x power.

This function is around 11 times faster on x86, and around 22 times faster on fpu-less arm than libc pow(2, x).

Since: 1.0