Method create_parts

perro_source/render_stack/perro_graphics/src/resources.rs:21–32

(&mut self)

    pub(crate) fn has_pixels(&self) -> bool {
        !self.rgba.is_empty()
    }
}

#[derive(Default)]
struct SlotArena {
    generations: Vec<u32>,
    occupied: Vec<bool>,
    free_slots: Vec<usize>,
}

impl SlotArena {
    #[inline]
    fn create_parts(&mut self) -> (u32, u32) {
        if let Some(slot) = self.free_slots.pop() {
            self.generations[slot] = self.generations[slot].wrapping_add(1);