mpsimageconversion(3) [mojave man page]

MPSImageConversion(3)					 MetalPerformanceShaders.framework				     MPSImageConversion(3)

NAME

       MPSImageConversion

SYNOPSIS

       #import <MPSImageConversion.h>

       Inherits MPSUnaryImageKernel.

   Instance Methods
       (nonnull instancetype) - initWithDevice:srcAlpha:destAlpha:backgroundColor:conversionInfo:

   Properties
       MPSAlphaType sourceAlpha
       MPSAlphaType destinationAlpha

   Additional Inherited Members
Detailed Description
       MPSImageConversions.h  MetalPerformanceShaders.framework

       Copyright:
	   Copyright (c) 2015 Apple Inc. All rights reserved.  MetalPerformanceShaders conversion filters  MPS_CLASS_AVAILABLE_STARTING

       The MPSImageConversion filter performs a conversion from source to destination

Method Documentation
   - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device(MPSAlphaType) srcAlpha(MPSAlphaType) destAlpha(nullable CGFloat *)
       backgroundColor(nullable CGColorConversionInfoRef) conversionInfo
       Create a converter that can convert texture colorspace, alpha and texture format  Create a converter that can convert texture colorspace,
       alpha and MTLPixelFormat. Optimized cases exist for NULL color space converter and no alpha conversion.

       Parameters:
	   device The device the filter will run on
	   srcAlpha The alpha encoding for the source texture
	   destAlpha The alpha encoding for the destination texture
	   backgroundColor An array of CGFloats giving the background color to use when flattening an image. The color is in the source
	   colorspace. The length of the array is the number of color channels in the src colorspace. If NULL, use {0}.
	   conversionInfo The colorspace conversion to use. May be NULL, indicating no color space conversions need to be done.

       Returns:
	   An initialized MPSImageConversion object.

Property Documentation
   - destinationAlpha [read],  [nonatomic],  [assign]
       Premultiplication description for the destinationAlpha texture  Colorspace conversion operations produce non-premultiplied data. Use this
       property to tag cases where premultiplied results are required. If MPSPixelAlpha_AlphaIsOne is used, the alpha channel will be set to 1.
       Default: MPSPixelAlpha_AlphaIsOne

   - sourceAlpha [read],  [nonatomic],	[assign]
       Premultiplication description for the source texture  Most colorspace conversion operations can not work directly on premultiplied data.
       Use this property to tag premultiplied data so that the source texture can be unpremultiplied prior to application of these transforms.
       Default: MPSPixelAlpha_AlphaIsOne

Author
       Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code.

Version MetalPerformanceShaders-100				  Thu Feb 8 2018					     MPSImageConversion(3)

Check Out this Related Man Page

MPSImageStatisticsMean(3)				 MetalPerformanceShaders.framework				 MPSImageStatisticsMean(3)

NAME

       MPSImageStatisticsMean

SYNOPSIS

       #import <MPSImageStatistics.h>

       Inherits MPSUnaryImageKernel.

   Instance Methods
       (nonnull instancetype) - initWithDevice:
       (nullable instancetype) - initWithCoder:device:

   Properties
       MTLRegion clipRectSource

   Additional Inherited Members
Detailed Description
       The MPSImageStatisticsMean computes the mean for a given region of an image.

Method Documentation
   - (nullable instancetype) initWithCoder: (NSCoder *__nonnull) aDecoder(nonnull id< MTLDevice >) device
       NSSecureCoding compatability  While the standard NSSecureCoding/NSCoding method -initWithCoder: should work, since the file can't know
       which device your data is allocated on, we have to guess and may guess incorrectly. To avoid that problem, use initWithCoder:device
       instead.

       Parameters:
	   aDecoder The NSCoder subclass with your serialized MPSKernel
	   device The MTLDevice on which to make the MPSKernel

       Returns:
	   A new MPSKernel object, or nil if failure.

       Reimplemented from MPSUnaryImageKernel.

   - (nonnull instancetype) initWithDevice: (nonnull id< MTLDevice >) device
       Specifies information to apply the statistics mean operation on an image.

       Parameters:
	   device The device the filter will run on

       Returns:
	   A valid MPSImageStatisticsMean object or nil, if failure.

       Reimplemented from MPSUnaryImageKernel.

Property Documentation
   - clipRectSource [read],  [write],  [nonatomic],  [assign]
       The source rectangle to use when reading data.  A MTLRegion that indicates which part of the source to read. If the clipRectSource does not
       lie completely within the source image, the intersection of the image bounds and clipRectSource will be used. The clipRectSource replaces
       the MPSUnaryImageKernel offset parameter for this filter. The latter is ignored. Default: MPSRectNoClip, use the entire source texture.

       The clipRect specified in MPSUnaryImageKernel is used to control the origin in the destination texture where the mean value is written.

Author
       Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code.

Version MetalPerformanceShaders-100				  Thu Feb 8 2018					 MPSImageStatisticsMean(3)

Linux and UNIX Man Pages

mpsimageconversion(3) [mojave man page]

Check Out this Related Man Page