Method flat_to_stack

cake-core/src/models/luxtts/config.rs:103–112

Map a flat layer index to (stack_idx, layer_in_stack).

(&self, flat_idx: usize)

    /// Map a flat layer index to (stack_idx, layer_in_stack).
    pub fn flat_to_stack(&self, flat_idx: usize) -> (usize, usize) {
        let mut remaining = flat_idx;
        for (stack_idx, &count) in self.model.fm_decoder_num_layers.iter().enumerate() {
            if remaining < count {
                return (stack_idx, remaining);
            }
            remaining -= count;
        }
        panic!("flat_idx {} out of range", flat_idx);
    }

    /// Check if a flat layer index is the first layer of its stack.
    pub fn is_stack_first(&self, flat_idx: usize) -> bool {