mojave man page for mpsimageconversion

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)