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use crate::*;
#[derive(Debug, PartialEq, Clone, Copy, Eq)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub enum Schedule {
Pixel,
Image,
}
#[derive(Default)]
pub struct Pipeline<T: Type, C: Color, U: Type = T, D: Color = C> {
pub(crate) filters: Vec<Box<dyn Filter<T, C, U, D>>>,
}
impl<T: Type, C: Color, U: Type, D: Color> Pipeline<T, C, U, D> {
pub fn new() -> Self {
Pipeline {
filters: Vec::new(),
}
}
pub fn push(&mut self, filter: impl 'static + Filter<T, C, U, D>) {
self.filters.push(Box::new(filter));
}
pub fn then(mut self, filter: impl 'static + Filter<T, C, U, D>) -> Self {
self.filters.push(Box::new(filter));
self
}
fn image_schedule_list(&self) -> Vec<usize> {
let mut dest = Vec::new();
for (i, f) in self.filters.iter().enumerate() {
if f.schedule() == Schedule::Image {
dest.push(i);
}
}
dest.push(self.filters.len() - 1);
dest
}
#[allow(clippy::too_many_arguments)]
pub(crate) fn loop_inner<'a>(
&self,
input: &mut Input<'a, T, C>,
output: &mut Image<U, D>,
tmpconv: &mut Image<T, C>,
j: usize,
index: usize,
image_schedule_filters: &[usize],
) {
let current_filter = &self.filters[index];
if current_filter.schedule() == Schedule::Image {
let output_size = current_filter.output_size(input, output);
if output_size != tmpconv.size() {
*tmpconv = Image::new(output_size);
}
}
output.iter_mut().for_each(|(pt, mut data)| {
for f in self.filters[if j == 0 {
0
} else {
image_schedule_filters[j - 1] + 1
}..=index]
.iter()
{
match f.schedule() {
Schedule::Pixel if j > 0 => {
let mut px = Pixel::new();
let input = input
.clone()
.with_pixel(pt, px.copy_from_data(&data.as_data()).convert());
f.compute_at(pt, &input, &mut data);
}
Schedule::Pixel => {
f.compute_at(pt, input, &mut data);
}
Schedule::Image => {
f.compute_at(pt, input, &mut data);
}
}
}
});
if index != self.filters.len() - 1 {
output.convert_to(tmpconv);
let tmp = tmpconv as *const _;
input.images[0] = unsafe { &*tmp };
}
}
pub fn execute(&self, input: &[&Image<T, C>], output: &mut Image<U, D>) {
let mut input = Input::new(input);
let image_schedule_filters = self.image_schedule_list();
let mut tmpconv = Image::<T, C>::new(output.size());
for (j, index) in image_schedule_filters.iter().enumerate() {
self.loop_inner(
&mut input,
output,
&mut tmpconv,
j,
*index,
&image_schedule_filters,
);
}
}
pub fn to_async<'a>(
&'a self,
input: &'a [&'a Image<T, C>],
output: &'a mut Image<U, D>,
) -> AsyncPipeline<'a, T, C, U, D> {
let image_schedule_filters = self.image_schedule_list();
let input = Input::new(input);
let index = image_schedule_filters[0];
let size = output.size();
AsyncPipeline {
pipeline: self,
image_schedule_filters,
j: 0,
index,
input,
output,
tmpconv: Image::<T, C>::new(size),
}
}
}
impl<T: Type, C: Color> Pipeline<T, C> {
pub fn execute_in_place(&self, output: &mut Image<T, C>) {
let input = unsafe { &[&*(output as *const _)] };
let mut input = Input::new(input);
let image_schedule_filters = self.image_schedule_list();
let mut tmpconv = Image::<T, C>::new(output.size());
for (j, index) in image_schedule_filters.iter().enumerate() {
self.loop_inner(
&mut input,
output,
&mut tmpconv,
j,
*index,
&image_schedule_filters,
);
}
}
}