nopenpilot/selfdrive/controls/lib/lateral_mpc/libmpc_py.py

31 lines
795 B
Python

import os
from cffi import FFI
mpc_dir = os.path.dirname(os.path.abspath(__file__))
libmpc_fn = os.path.join(mpc_dir, "libmpc.so")
ffi = FFI()
ffi.cdef("""
typedef struct {
double x, y, psi, delta, t;
} state_t;
typedef struct {
double x[21];
double y[21];
double psi[21];
double delta[21];
double rate[20];
double cost;
} log_t;
void init(double pathCost, double laneCost, double headingCost, double steerRateCost);
void init_weights(double pathCost, double laneCost, double headingCost, double steerRateCost);
int run_mpc(state_t * x0, log_t * solution,
double l_poly[4], double r_poly[4], double d_poly[4],
double l_prob, double r_prob, double curvature_factor, double v_ref, double lane_width);
""")
libmpc = ffi.dlopen(libmpc_fn)