ObjFW
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OFColorSpace Class Reference

A class representing a color space. More...

#include <ObjFW/ObjFW.h>

Inheritance diagram for OFColorSpace:
OFObject <OFObject>

Instance Methods

(instancetype) - initWithEOTF:OETF:RGBToXYZMatrix:XYZToRGBMatrix:linear:
 Initializes the color space with the specified parameters.
Instance Methods inherited from OFObject
(instancetype) - init
 Initializes an already allocated object.
(nullable OFMethodSignature *) - methodSignatureForSelector:
 Returns the method signature for the specified selector.
(void) - dealloc
 Deallocates the object.
(void) - performSelector:afterDelay:
 Performs the specified selector after the specified delay.
(void) - performSelector:withObject:afterDelay:
 Performs the specified selector with the specified object after the specified delay.
(void) - performSelector:withObject:withObject:afterDelay:
 Performs the specified selector with the specified objects after the specified delay.
(void) - performSelector:withObject:withObject:withObject:afterDelay:
 Performs the specified selector with the specified objects after the specified delay.
(void) - performSelector:withObject:withObject:withObject:withObject:afterDelay:
 Performs the specified selector with the specified objects after the specified delay.
(void) - performSelector:onThread:waitUntilDone:
 Performs the specified selector on the specified thread.
(void) - performSelector:onThread:withObject:waitUntilDone:
 Performs the specified selector on the specified thread with the specified object.
(void) - performSelector:onThread:withObject:withObject:waitUntilDone:
 Performs the specified selector on the specified thread with the specified objects.
(void) - performSelector:onThread:withObject:withObject:withObject:waitUntilDone:
 Performs the specified selector on the specified thread with the specified objects.
(void) - performSelector:onThread:withObject:withObject:withObject:withObject:waitUntilDone:
 Performs the specified selector on the specified thread with the specified objects.
(void) - performSelectorOnMainThread:waitUntilDone:
 Performs the specified selector on the main thread.
(void) - performSelectorOnMainThread:withObject:waitUntilDone:
 Performs the specified selector on the main thread with the specified object.
(void) - performSelectorOnMainThread:withObject:withObject:waitUntilDone:
 Performs the specified selector on the main thread with the specified objects.
(void) - performSelectorOnMainThread:withObject:withObject:withObject:waitUntilDone:
 Performs the specified selector on the main thread with the specified objects.
(void) - performSelectorOnMainThread:withObject:withObject:withObject:withObject:waitUntilDone:
 Performs the specified selector on the main thread with the specified objects.
(void) - performSelector:onThread:afterDelay:
 Performs the specified selector on the specified thread after the specified delay.
(void) - performSelector:onThread:withObject:afterDelay:
 Performs the specified selector on the specified thread with the specified object after the specified delay.
(void) - performSelector:onThread:withObject:withObject:afterDelay:
 Performs the specified selector on the specified thread with the specified objects after the specified delay.
(void) - performSelector:onThread:withObject:withObject:withObject:afterDelay:
 Performs the specified selector on the specified thread with the specified objects after the specified delay.
(void) - performSelector:onThread:withObject:withObject:withObject:withObject:afterDelay:
 Performs the specified selector on the specified thread with the specified objects after the specified delay.
(nullable id) - forwardingTargetForSelector:
 This method is called when resolveClassMethod: or resolveInstanceMethod: returned false. It should return a target to which the message should be forwarded.
(void) - doesNotRecognizeSelector:
 Handles messages which are not understood by the receiver.
Instance Methods inherited from <OFObject>
(unsigned long) - hash
 Returns a hash for the object.
(unsigned int) - retainCount
 Returns the retain count.
(bool) - isProxy
 Returns whether the object is a proxy object.
(bool) - isKindOfClass:
 Returns a boolean whether the object is of the specified kind.
(bool) - isMemberOfClass:
 Returns a boolean whether the object is a member of the specified class.
(bool) - respondsToSelector:
 Returns a boolean whether the object responds to the specified selector.
(nullable IMP- methodForSelector:
 Returns the implementation for the specified selector.
(nullable id) - performSelector:
 Performs the specified selector.
(nullable id) - performSelector:withObject:
 Performs the specified selector with the specified object.
(nullable id) - performSelector:withObject:withObject:
 Performs the specified selector with the specified objects.
(nullable id) - performSelector:withObject:withObject:withObject:
 Performs the specified selector with the specified objects.
(nullable id) - performSelector:withObject:withObject:withObject:withObject:
 Performs the specified selector with the specified objects.
(bool) - isEqual:
 Checks two objects for equality.
(instancetype) - retain
 Increases the retain count.
(void) - release
 Decreases the retain count.
(instancetype) - autorelease
 Adds the object to the topmost autorelease pool of the thread's autorelease pool stack.
(instancetype) - self
 Returns the receiver.
(bool) - allowsWeakReference
 Returns whether the object allows a weak reference.
(bool) - retainWeakReference
 Retain a weak reference to this object.

Class Methods

(instancetype) + colorSpaceWithEOTF:OETF:RGBToXYZMatrix:XYZToRGBMatrix:linear:
 Creates a new color space with the specified parameters.
(OFColorSpace *) + sRGBColorSpace
 The sRGB color space.
(OFColorSpace *) + linearSRGBColorSpace
 The sRGB color space with linear transfer function.
(OFColorSpace *) + BT709ColorSpace
 The BT.709 color space.
(OFColorSpace *) + displayP3ColorSpace
 The Display P3 color space.
(OFColorSpace *) + linearDisplayP3ColorSpace
 The Display P3 color space with linear transfer function.
(OFColorSpace *) + BT2020ColorSpace
 The ITU-R Recommendation BT.2020 color space.
(OFColorSpace *) + linearBT2020ColorSpace
 The ITU-R Recommendation BT.2020 color space with linear transfer function.
(OFColorSpace *) + adobeRGBColorSpace
 The Adobe RGB (1998) color space.
(OFColorSpace *) + linearAdobeRGBColorSpace
 The Adobe RGB (1998) color space with linear transfer function.
Class Methods inherited from OFObject
(void) + load
 A method which is called once when the class is loaded into the runtime.
(void) + unload
 A method which is called when the class is unloaded from the runtime.
(void) + initialize
 A method which is called the moment before the first call to the class is being made.
(instancetype) + alloc
 Allocates memory for an instance of the class and sets up the memory pool for the object.
(Class) + class
 Returns the class.
(OFString *) + className
 Returns the name of the class as a string.
(bool) + isSubclassOfClass:
 Returns a boolean whether the class is a subclass of the specified class.
(nullable Class) + superclass
 Returns the superclass of the class.
(bool) + instancesRespondToSelector:
 Checks whether instances of the class respond to a given selector.
(bool) + conformsToProtocol:
 Checks whether the class conforms to a given protocol.
(nullable IMP+ instanceMethodForSelector:
 Returns the implementation of the instance method for the specified selector.
(nullable OFMethodSignature *) + instanceMethodSignatureForSelector:
 Returns the method signature of the instance method for the specified selector.
(OFString *) + description
 Returns a description for the class, which is usually the class name.
(nullable IMP+ replaceClassMethod:withMethodFromClass:
 Replaces a class method with a class method from another class.
(nullable IMP+ replaceInstanceMethod:withMethodFromClass:
 Replaces an instance method with an instance method from another class.
(void) + inheritMethodsFromClass:
 Adds all methods from the specified class to the class that is the receiver.
(bool) + resolveClassMethod:
 Try to resolve the specified class method.
(bool) + resolveInstanceMethod:
 Try to resolve the specified instance method.
(id) + copy
 Returns the class.

Properties

OFColorSpaceTransferFunction EOTF
 The Electro-Optical Transfer Function of the color space.
OFColorSpaceTransferFunction OETF
 The Opto-Electronic Transfer Function of the color space.
OFMatrix4x4RGBToXYZMatrix
 A matrix to map a linear RGB value to a CIE XYZ value.
OFMatrix4x4XYZToRGBMatrix
 A matrix to map a CIE XYZ value to a linear RGB value.
bool linear
 Whether the color space is linear.
Properties inherited from OFObject
OFStringclassName
 The name of the object's class.
OFStringdescription
 A description for the object.

Detailed Description

A class representing a color space.

Method Documentation

◆ BT709ColorSpace

+ (OFColorSpace *) BT709ColorSpace

The BT.709 color space.

Note
There is no linear BT.709 color space as it is identical to the linear sRGB color space (see linearSRGBColorSpace).

◆ colorSpaceWithEOTF:OETF:RGBToXYZMatrix:XYZToRGBMatrix:linear:

+ (instancetype) colorSpaceWithEOTF: (OFColorSpaceTransferFunction) EOTF
OETF: (OFColorSpaceTransferFunction) OETF
RGBToXYZMatrix: (OFMatrix4x4 *) RGBToXYZMatrix
XYZToRGBMatrix: (OFMatrix4x4 *) XYZToRGBMatrix
linear: (bool) linear 

Creates a new color space with the specified parameters.

Parameters
EOTFThe EOTF for the color space
OETFThe OETF for the color space
RGBToXYZMatrixThe RGB to CIE XYZ matrix for the color space
XYZToRGBMatrixThe CIE XYZ to RGB matrix for the color space
linearWhether the color space is linear
Returns
An new, autoreleased color space

◆ initWithEOTF:OETF:RGBToXYZMatrix:XYZToRGBMatrix:linear:

- (instancetype) initWithEOTF: (OFColorSpaceTransferFunction) EOTF
OETF: (OFColorSpaceTransferFunction) OETF
RGBToXYZMatrix: (OFMatrix4x4 *) RGBToXYZMatrix
XYZToRGBMatrix: (OFMatrix4x4 *) XYZToRGBMatrix
linear: (bool) linear 

Initializes the color space with the specified parameters.

Parameters
EOTFThe EOTF for the color space
OETFThe OETF for the color space
RGBToXYZMatrixThe RGB to CIE XYZ matrix for the color space
XYZToRGBMatrixThe CIE XYZ to RGB matrix for the color space
linearWhether the color space is linear
Returns
An initialized color space

Property Documentation

◆ EOTF

- (OFColorSpaceTransferFunction) EOTF
readnonatomicassign

The Electro-Optical Transfer Function of the color space.

This maps a non-linear RGB value to a linear RGB value.

◆ OETF

- (OFColorSpaceTransferFunction) OETF
readnonatomicassign

The Opto-Electronic Transfer Function of the color space.

This maps a linear RGB value to a non-linear RGB value.


The documentation for this class was generated from the following files: