#ifndef POLY_H
#define POLY_H

#include <immintrin.h>
#include <stdint.h>

#include "alignment.h"
#include "params.h"

typedef union {
    uint32_t coeffs[N];
    __m256i coeffs_x8[N / 8];
} poly;

void PQCLEAN_DILITHIUM2_AVX2_poly_reduce(poly *a);
void PQCLEAN_DILITHIUM2_AVX2_poly_csubq(poly *a);
void PQCLEAN_DILITHIUM2_AVX2_poly_freeze(poly *a);

void PQCLEAN_DILITHIUM2_AVX2_poly_add(poly *c, const poly *a, const poly *b);
void PQCLEAN_DILITHIUM2_AVX2_poly_sub(poly *c, const poly *a, const poly *b);
void PQCLEAN_DILITHIUM2_AVX2_poly_shiftl(poly *a);

void PQCLEAN_DILITHIUM2_AVX2_poly_ntt(poly *a);
void PQCLEAN_DILITHIUM2_AVX2_poly_invntt_montgomery(poly *a);
void PQCLEAN_DILITHIUM2_AVX2_poly_pointwise_invmontgomery(poly *c, const poly *a, const poly *b);

void PQCLEAN_DILITHIUM2_AVX2_poly_power2round(poly *a1, poly *a0, const poly *a);
void PQCLEAN_DILITHIUM2_AVX2_poly_decompose(poly *a1, poly *a0, const poly *a);
unsigned int PQCLEAN_DILITHIUM2_AVX2_poly_make_hint(poly *h, const poly *a0, const poly *a1);
void PQCLEAN_DILITHIUM2_AVX2_poly_use_hint(poly *a, const poly *b, const poly *h);

int  PQCLEAN_DILITHIUM2_AVX2_poly_chknorm(const poly *a, uint32_t B);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform(poly *a,
        const uint8_t *seed,
        uint16_t nonce);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform_4x(poly *a0,
        poly *a1,
        poly *a2,
        poly *a3,
        const uint8_t *seed,
        uint16_t nonce0,
        uint16_t nonce1,
        uint16_t nonce2,
        uint16_t nonce3);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform_eta(poly *a,
        const uint8_t *seed,
        uint16_t nonce);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform_eta_4x(poly *a0,
        poly *a1,
        poly *a2,
        poly *a3,
        const uint8_t *seed,
        uint16_t nonce0,
        uint16_t nonce1,
        uint16_t nonce2,
        uint16_t nonce3);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform_gamma1m1(poly *a,
        const uint8_t *seed,
        uint16_t nonce);
void PQCLEAN_DILITHIUM2_AVX2_poly_uniform_gamma1m1_4x(poly *a0,
        poly *a1,
        poly *a2,
        poly *a3,
        const uint8_t *seed,
        uint16_t nonce0,
        uint16_t nonce1,
        uint16_t nonce2,
        uint16_t nonce3);

void PQCLEAN_DILITHIUM2_AVX2_polyeta_pack(uint8_t *r, const poly *a);
void PQCLEAN_DILITHIUM2_AVX2_polyeta_unpack(poly *r, const uint8_t *a);

void PQCLEAN_DILITHIUM2_AVX2_polyt1_pack(uint8_t *r, const poly *a);
void PQCLEAN_DILITHIUM2_AVX2_polyt1_unpack(poly *r, const uint8_t *a);

void PQCLEAN_DILITHIUM2_AVX2_polyt0_pack(uint8_t *r, const poly *a);
void PQCLEAN_DILITHIUM2_AVX2_polyt0_unpack(poly *r, const uint8_t *a);

void PQCLEAN_DILITHIUM2_AVX2_polyz_pack(uint8_t *r, const poly *a);
void PQCLEAN_DILITHIUM2_AVX2_polyz_unpack(poly *r, const uint8_t *a);

void PQCLEAN_DILITHIUM2_AVX2_polyw1_pack(uint8_t *r, const poly *a);
#endif