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48 lines
2.1 KiB
48 lines
2.1 KiB
#include <base/subface.hpp>
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#include "math/math_defs.hpp"
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namespace internal
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{
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#define def_subface_func_list(func_name) \
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static constexpr std::array<func_name##_ptr_t, static_cast<uint8_t>(surface_type::max_count)> func_name##_func_list = { \
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&plane_function_impl::func_name, \
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&sphere_function_impl::func_name, \
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&cylinder_function_impl::func_name, \
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nullptr}
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def_subface_func_list(eval_sdf);
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def_subface_func_list(eval_sdf_grad);
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def_subface_func_list(map_param_to_point);
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def_subface_func_list(map_point_to_param);
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def_subface_func_list(eval_du_constraint);
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def_subface_func_list(eval_dv_constraint);
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def_subface_func_list(eval_intersection);
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#undef def_subface_func_list
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#define def_export_get_function_ptr_impl(func_name) \
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PE_API func_name##_ptr_t get_##func_name##_ptr(surface_type type) \
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{ \
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return func_name##_func_list[static_cast<std::underlying_type_t<surface_type>>(type)]; \
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}
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def_export_get_function_ptr_impl(eval_sdf);
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def_export_get_function_ptr_impl(eval_sdf_grad);
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def_export_get_function_ptr_impl(map_param_to_point);
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def_export_get_function_ptr_impl(map_point_to_param);
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def_export_get_function_ptr_impl(eval_du_constraint);
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def_export_get_function_ptr_impl(eval_dv_constraint);
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def_export_get_function_ptr_impl(eval_intersection);
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#undef def_export_get_function_ptr_impl
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PE_API double get_cycle(surface_type type)
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{
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switch (type) {
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case surface_type::sphere: return two_pi;
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case surface_type::cylinder: return two_pi;
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case surface_type::cone: return sqrt_2 * pi;
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default: return std::numeric_limits<double>::infinity();
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}
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}
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} // namespace internal
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