Package apple.metalperformanceshaders

Class MPSImageLaplacianPyramidAdd

  • All Implemented Interfaces:
    NSCoding, NSCopying, NSSecureCoding, NSObject
    public class MPSImageLaplacianPyramidAdd
extends MPSImageLaplacianPyramid
    MPSImageLaplacianPyramidAdd The MPSImageLaplacianPyramidAdd class is responsible for reconstruction of Gaussian pyramid from the Laplacian pyramid supplied in the source texture. Mathematically it is the inverse of the process specified in the discussion section for MPSImageLaplacianPyramid. It is an iterative process, starting from the top mip-level and on each iteration feeding off both the LaplacianMipLevel[l] data coming directly from the source and GaussianMipLevel[l + 1] just written to the destination on the previous iteration : GaussianMipLevel[l] := LaplacianRangeScale^-1(LaplacianMipLevelStored[l], laplacianBias, laplacianScale) + Interpolate(GaussianMipLevel[l + 1]) As initial state for the first iteration only, the data for GaussianMipLevel[l + 1] in the formula above is provided in the LaplacianMipLevel[#top] level. This corresponds to the special handling of the top mip-level of Gaussian pyramid discussed for MPSImageLaplacianPyramidSubtract. Just like for MPSImageLaplacianPyramidSubtract, if the destination texture needs to contain all mip-level of the Gaussian pyramid including the top level, it can be just from the source texture.

    • Constructor Detail

      • MPSImageLaplacianPyramidAdd

        protected MPSImageLaplacianPyramidAdd​(org.moe.natj.general.Pointer peer)

    • Method Detail

      • accessInstanceVariablesDirectly

        public static boolean accessInstanceVariablesDirectly()

      • allocWithZone

        public static java.lang.Object allocWithZone​(org.moe.natj.general.ptr.VoidPtr zone)

      • automaticallyNotifiesObserversForKey

        public static boolean automaticallyNotifiesObserversForKey​(java.lang.String key)

      • cancelPreviousPerformRequestsWithTarget

        public static void cancelPreviousPerformRequestsWithTarget​(java.lang.Object aTarget)

      • cancelPreviousPerformRequestsWithTargetSelectorObject

        public static void cancelPreviousPerformRequestsWithTargetSelectorObject​(java.lang.Object aTarget,
                                                                         org.moe.natj.objc.SEL aSelector,
                                                                         java.lang.Object anArgument)

      • classFallbacksForKeyedArchiver

        public static NSArray<java.lang.String> classFallbacksForKeyedArchiver()

      • classForKeyedUnarchiver

        public static org.moe.natj.objc.Class classForKeyedUnarchiver()

      • debugDescription_static

        public static java.lang.String debugDescription_static()

      • description_static

        public static java.lang.String description_static()

      • hash_static

        public static long hash_static()

      • initWithCoderDevice

        public MPSImageLaplacianPyramidAdd initWithCoderDevice​(NSCoder aDecoder,
                                                       java.lang.Object device)
        Description copied from class: MPSImagePyramid
        NSSecureCoding compatability See @ref MPSKernel#initWithCoder.
        Overrides:
        initWithCoderDevice in class MPSImageLaplacianPyramid
        Parameters:
        aDecoder - The NSCoder subclass with your serialized MPSCNNPooling
        device - The MTLDevice on which to make the MPSCNNPooling
        Returns:
        A new MPSCNNPooling object, or nil if failure.

      • initWithDevice

        public MPSImageLaplacianPyramidAdd initWithDevice​(java.lang.Object device)
        Description copied from class: MPSImagePyramid
        Initialize a downwards 5-tap image pyramid with the default filter kernel and device The filter kernel is the outer product of w = [ 1/16, 1/4, 3/8, 1/4, 1/16 ]^T, with itself
        Overrides:
        initWithDevice in class MPSImageLaplacianPyramid
        Parameters:
        device - The device the filter will run on
        Returns:
        A valid object or nil, if failure.

      • initWithDeviceCenterWeight

        public MPSImageLaplacianPyramidAdd initWithDeviceCenterWeight​(MTLDevice device,
                                                              float centerWeight)
        Description copied from class: MPSImagePyramid
        Initialize a downwards 5-tap image pyramid with a central weight parameter and device
        Overrides:
        initWithDeviceCenterWeight in class MPSImageLaplacianPyramid
        Parameters:
        device - The device the filter will run on
        centerWeight - Defines form of the filter-kernel through the outer product ww^T, where w = [ (1/4 - a/2), 1/4, a, 1/4, (1/4 - a/2) ]^T and 'a' is centerWeight.
        Returns:
        A valid object or nil, if failure.

      • initWithDeviceKernelWidthKernelHeightWeights

        public MPSImageLaplacianPyramidAdd initWithDeviceKernelWidthKernelHeightWeights​(MTLDevice device,
                                                                                long kernelWidth,
                                                                                long kernelHeight,
                                                                                org.moe.natj.general.ptr.ConstFloatPtr kernelWeights)
        Description copied from class: MPSImagePyramid
        Initialize a downwards n-tap pyramid with a custom filter kernel and device
        Overrides:
        initWithDeviceKernelWidthKernelHeightWeights in class MPSImageLaplacianPyramid
        Parameters:
        device - The device the filter will run on
        kernelWidth - The width of the filtering kernel. See @ref MPSImageConvolution.
        kernelHeight - The height of the filtering kernel. See @ref MPSImageConvolution.
        kernelWeights - A pointer to an array of kernelWidth * kernelHeight values to be used as the kernel. These are in row major order. See @ref MPSImageConvolution.
        Returns:
        A valid object or nil, if failure.

      • instanceMethodSignatureForSelector

        public static NSMethodSignature instanceMethodSignatureForSelector​(org.moe.natj.objc.SEL aSelector)

      • instancesRespondToSelector

        public static boolean instancesRespondToSelector​(org.moe.natj.objc.SEL aSelector)

      • isSubclassOfClass

        public static boolean isSubclassOfClass​(org.moe.natj.objc.Class aClass)

      • keyPathsForValuesAffectingValueForKey

        public static NSSet<java.lang.String> keyPathsForValuesAffectingValueForKey​(java.lang.String key)

      • new_objc

        public static java.lang.Object new_objc()

      • resolveClassMethod

        public static boolean resolveClassMethod​(org.moe.natj.objc.SEL sel)

      • resolveInstanceMethod

        public static boolean resolveInstanceMethod​(org.moe.natj.objc.SEL sel)

      • setVersion_static

        public static void setVersion_static​(long aVersion)

      • superclass_static

        public static org.moe.natj.objc.Class superclass_static()

      • supportsSecureCoding

        public static boolean supportsSecureCoding()

      • _supportsSecureCoding

        public boolean _supportsSecureCoding()
        Description copied from interface: NSSecureCoding
        This property must return YES on all classes that allow secure coding. Subclasses of classes that adopt NSSecureCoding and override initWithCoder: must also override this method and return YES. The Secure Coding Guide should be consulted when writing methods that decode data.
        Specified by:
        _supportsSecureCoding in interface NSSecureCoding
        Overrides:
        _supportsSecureCoding in class MPSImageLaplacianPyramid

      • version_static

        public static long version_static()