Converts and permutes an ARGB8888 image to an ARGB16U image.
SDKs
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 2.0+
Framework
- Accelerate
Declaration
func vImageConvert_ARGB8888ToARGB16U(_ src: UnsafeParameters
srcA pointer to a vImage buffer structure that contains the source image whose data you want to convert.
destA pointer to a vImage buffer data structure. You're responsible for filling out the
height,width, androwfields 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.Bytes permuteMapAn array of four 8-bit integers with the values 0, 1, 2, and 3, in some order. Each value specifies a channel from the source image that should be copied to that channel in the destination image. 0 denotes the alpha channel, 1 the red channel, 2 the green channel, and 3 the blue channel.
copyMaskA mask to choose between the
resultand thebackground.Color 100uses the first channel ofbackgroundas the value of channel R in the result.Color 010uses the second channel ofbackgroundas the value of channel G in the result.Color 001uses the third channel ofbackgroundas the value of channel B in the result.Color
backgroundColorA pointer to 16-bit ARGB values that replace the result pixels based on the copy mask.
flagsThe options to use when performing the operation. If you plan to perform your own tiling or use multithreading, pass
kv.Image Do Not Tile
Return Value
kv; otherwise, one of the error codes described in Data Types and Constants.