Function

vImagePermuteChannels_ARGB16U(_:_:_:_:)

Reorders the channels in an ARGB16U image.

Declaration

func vImagePermuteChannels_ARGB16U(_ src: UnsafePointer<vImage_Buffer>, _ dest: UnsafePointer<vImage_Buffer>, _ permuteMap: UnsafePointer<UInt8>, _ flags: vImage_Flags) -> vImage_Error

Parameters

src

A pointer to a vImage buffer structure that contains the source image whose data you want to permute.

dest

A pointer to a vImage buffer data structure. You're responsible for filling out the height, width, and rowBytes fields of this structure, and for allocating a data buffer of the appropriate size. On return, the data buffer this structure points to contains the destination image data. When you no longer need the data buffer, you must deallocate the memory.

permuteMap

An array of four 8-bit integers with the values 0, 1, 2, and 3, in some order. Each value specifies a plane from the source image that should be copied to that plane in the destination image. 0 denotes the alpha channel, 1 the red channel, 2 the green channel, and 3 the blue channel.

flags

The options to use when performing the operation. If you plan to perform your own tiling or use multithreading, pass kvImageDoNotTile.

Return Value

kvImageNoError; otherwise, one of the error codes described in Data Types and Constants.