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#pragma once
#include <LLBM/call_tag.h>
#include <LLBM/lattice.h>
template <typename S>
struct BouzidiConfig {
std::size_t* boundary; // boundary cell to be interpolated
std::size_t* solid; // adjacent solid cell
std::size_t* fluid; // adjacent fluid cell
S* distance; // precomputed distance factor q
S* correction; // correction for moving walls
pop_index_t* missing; // population to be reconstructed
};
struct BouzidiO {
using call_tag = tag::call_by_list_index;
template <typename T, typename S, typename DESCRIPTOR>
__device__ static void apply(
LatticeView<DESCRIPTOR,S> lattice
, std::size_t index
, std::size_t count
, BouzidiConfig<S> config
) {
pop_index_t& iPop = config.missing[index];
pop_index_t jPop = descriptor::opposite<DESCRIPTOR>(iPop);
pop_index_t kPop = config.boundary[index] == config.fluid[index] ? iPop : jPop;
S f_bound_j = *lattice.pop(jPop, config.boundary[index]);
S f_fluid_j = *lattice.pop(kPop, config.fluid[index]);
S* f_next_i = lattice.pop(iPop, config.solid[index]);
*f_next_i = config.distance[index] * f_bound_j
+ (1. - config.distance[index]) * f_fluid_j
+ config.correction[index];
}
};
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