use crate::errors::SicImageEngineError;
use crate::operations::ImageOperation;
use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
use sic_core::image::buffer::ConvertBuffer;
use sic_core::{image, SicImage};
pub struct Grayscale;
impl Grayscale {
pub fn new() -> Self {
Self {}
}
}
impl ImageOperation for Grayscale {
fn apply_operation(&self, image: &mut SicImage) -> Result<(), SicImageEngineError> {
match image {
SicImage::Static(image) => *image = image.grayscale(),
SicImage::Animated(image) => grayscale_animated_image(image.frames_mut()),
}
Ok(())
}
}
fn grayscale_animated_image(frames: &mut [image::Frame]) {
frames.par_iter_mut().for_each(|frame| {
*frame.buffer_mut() = image::imageops::grayscale(frame.buffer_mut()).convert();
});
}