Type Definition libjxl_sys::JxlImageOutRunCallback

pub type JxlImageOutRunCallback = Option<unsafe extern "C" fn(run_opaque: *mut c_void, thread_id: usize, x: usize, y: usize, num_pixels: usize, pixels: *const c_void)>;

Worker callback for @ref JxlDecoderSetMultithreadedImageOutCallback.

@param run_opaque user data returned by the @c init callback. @param thread_id number in [0, num_threads) identifying the thread of the current invocation of the callback. @param x horizontal position of the first (leftmost) pixel of the pixel data. @param y vertical position of the pixel data. @param num_pixels number of pixels in the pixel data. May be less than the full @c xsize of the image, and will be at most equal to the @c num_pixels_per_thread that was passed to @c init. @param pixels pixel data as a horizontal stripe, in the format passed to @ref JxlDecoderSetMultithreadedImageOutCallback. The data pointed to remains owned by the caller and is only guaranteed to outlive the current callback invocation.