Contents

vImageConvert_RGBA5551toRGB565(_:_:_:)

Removes the alpha channel from an RGBA5551 buffer to produce an RGB565 result.

Declaration

func vImageConvert_RGBA5551toRGB565(_ src: UnsafePointer<vImage_Buffer>, _ dest: UnsafePointer<vImage_Buffer>, _ flags: vImage_Flags) -> vImage_Error

Parameters

  • src:

    The source vImage buffer.

  • dest:

    A pointer to the destination vImage buffer 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, deallocate the memory to prevent memory leaks.

  • flags:

    The options to use when performing the operation. If your code implements its own tiling or its own multithreading, pass Kvimagedonottile; otherwise, pass Kvimagenoflags.

Return Value

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

Discussion

This function copies the red, green, and blue source channels to the destination buffer.

See Also

Conversion from ARGB1555 16-bit-per-channel, 4-channel interleaved buffers