vImageConvert_RGBA8888toRGB888(_:_:_:)
Removes the alpha channel from an 8-bit-per-channel RGBA buffer to produce an 8-bit-per-channel RGB result.
Declaration
func vImageConvert_RGBA8888toRGB888(_: UnsafePointer<vImage_Buffer>, _: UnsafePointer<vImage_Buffer>, _: vImage_Flags) -> vImage_ErrorReturn Value
kvImageNoError; otherwise, one of the error codes in Data Types and Constants.
Discussion
Parameters
- rgbaSrc
The source vImage buffer.
- rgbDest
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.
This function copies the red, green, and blue source channels to the destination buffer.
See Also
Conversion from 8-bit-per-channel, 4-channel interleaved buffers
vImageConvert_ARGB8888toRGB888(_:_:_:)vImageConvert_BGRA8888toRGB888(_:_:_:)vImageConvert_ARGB8888toRGB565(_:_:_:)vImageConvert_ARGB8888toRGB565_dithered(_:_:_:_:_:)vImageConvert_BGRA8888toRGB565(_:_:_:)vImageConvert_BGRA8888toRGB565_dithered(_:_:_:_:_:)vImageConvert_RGBA8888toRGB565_dithered(_:_:_:_:_:)vImageConvert_RGBA8888toRGB565(_:_:_:)vImageConvert_ARGB8888ToRGB16U(_:_:_:_:_:_:)