CartesianRender.hpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//
 
#pragma once
 
#include "shambackends/DeviceBuffer.hpp"
#include "shambackends/typeAliasVec.hpp"
#include "shambackends/vec.hpp"
#include "shammodels/sph/SolverConfig.hpp"
#include "shammodels/sph/modules/SolverStorage.hpp"
#include "shamrock/scheduler/ShamrockCtx.hpp"
#include <pybind11/numpy.h>
#include <pybind11/pytypes.h>
 
namespace shammodels::sph::modules {
 
    template<class Tvec, class Tfield, template<class> class SPHKernel>
    class CartesianRender {
        public:
        using Tscal              = shambase::VecComponent<Tvec>;
        static constexpr u32 dim = shambase::VectorProperties<Tvec>::dimension;
        using Kernel             = SPHKernel<Tscal>;
 
        using Config  = SolverConfig<Tvec, SPHKernel>;
        using Storage = SolverStorage<Tvec, u32>;
 
        ShamrockCtx &context;
        Config &solver_config;
        Storage &storage;
 
        CartesianRender(ShamrockCtx &context, Config &solver_config, Storage &storage)
            : context(context), solver_config(solver_config), storage(storage) {}
 
        using field_getter_t = const sham::DeviceBuffer<Tfield> &(
            const shamrock::patch::Patch cur_p, shamrock::patch::PatchDataLayer &pdat);
 
        sham::DeviceBuffer<Tfield> compute_slice(
            std::function<field_getter_t> field_getter, const sham::DeviceBuffer<Tvec> &positions);
 
        sham::DeviceBuffer<Tfield> compute_column_integ(
            std::function<field_getter_t> field_getter,
            const sham::DeviceBuffer<shammath::Ray<Tvec>> &rays);
 
        sham::DeviceBuffer<Tfield> compute_azymuthal_integ(
            std::function<field_getter_t> field_getter,
            const sham::DeviceBuffer<shammath::RingRay<Tvec>> &ring_rays);
 
        sham::DeviceBuffer<Tfield> compute_slice(
            std::string field_name,
            const sham::DeviceBuffer<Tvec> &positions,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter);
 
        sham::DeviceBuffer<Tfield> compute_column_integ(
            std::string field_name,
            const sham::DeviceBuffer<shammath::Ray<Tvec>> &rays,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter);
 
        sham::DeviceBuffer<Tfield> compute_azymuthal_integ(
            std::string field_name,
            const sham::DeviceBuffer<shammath::RingRay<Tvec>> &ring_rays,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter);
 
        sham::DeviceBuffer<Tfield> compute_slice(
            std::function<field_getter_t> field_getter,
            Tvec center,
            Tvec delta_x,
            Tvec delta_y,
            u32 nx,
            u32 ny);
 
        sham::DeviceBuffer<Tfield> compute_column_integ(
            std::function<field_getter_t> field_getter,
            Tvec center,
            Tvec delta_x,
            Tvec delta_y,
            u32 nx,
            u32 ny);
 
        sham::DeviceBuffer<Tfield> compute_slice(
            std::string field_name,
            Tvec center,
            Tvec delta_x,
            Tvec delta_y,
            u32 nx,
            u32 ny,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter);
 
        sham::DeviceBuffer<Tfield> compute_column_integ(
            std::string field_name,
            Tvec center,
            Tvec delta_x,
            Tvec delta_y,
            u32 nx,
            u32 ny,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter);
 
        inline sham::DeviceBuffer<Tfield> compute_slice(
            std::string field_name,
            const std::vector<Tvec> &positions,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter) {
            sham::DeviceBuffer<Tvec> positions_buf{
                positions.size(), shamsys::instance::get_compute_scheduler_ptr()};
            positions_buf.copy_from_stdvec(positions);
            return compute_slice(field_name, positions_buf, custom_getter);
        }
 
        inline sham::DeviceBuffer<Tfield> compute_column_integ(
            std::string field_name,
            const std::vector<shammath::Ray<Tvec>> &rays,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter) {
            sham::DeviceBuffer<shammath::Ray<Tvec>> rays_buf{
                rays.size(), shamsys::instance::get_compute_scheduler_ptr()};
            rays_buf.copy_from_stdvec(rays);
            return compute_column_integ(field_name, rays_buf, custom_getter);
        }
 
        inline sham::DeviceBuffer<Tfield> compute_azymuthal_integ(
            std::string field_name,
            const std::vector<shammath::RingRay<Tvec>> &ring_rays,
            std::optional<std::function<pybind11::array_t<Tfield>(size_t, pybind11::dict &)>>
                custom_getter) {
            sham::DeviceBuffer<shammath::RingRay<Tvec>> ring_rays_buf{
                ring_rays.size(), shamsys::instance::get_compute_scheduler_ptr()};
            ring_rays_buf.copy_from_stdvec(ring_rays);
            return compute_azymuthal_integ(field_name, ring_rays_buf, custom_getter);
        }
 
        private:
        inline PatchScheduler &scheduler() { return shambase::get_check_ref(context.sched); }
    };
 
} // namespace shammodels::sph::modules