/*
 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
 *
 * This source code is subject to the terms of the BSD 2 Clause License and
 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
 * was not distributed with this source code in the LICENSE file, you can
 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
 * Media Patent License 1.0 was not distributed with this source code in the
 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
 */

#if !defined(_CDEF_BLOCK_H)
#define _CDEF_BLOCK_H (1)

#include "./odintrin.h"

#define CDEF_BLOCKSIZE 64
#define CDEF_BLOCKSIZE_LOG2 6
#define CDEF_NBLOCKS (CDEF_BLOCKSIZE / 8)

/* We need to buffer three vertical lines. */
#define CDEF_VBORDER (3)
/* We only need to buffer three horizontal pixels too, but let's align to
   16 bytes (8 x 16 bits) to make vectorization easier. */
#define CDEF_HBORDER (8)
#define CDEF_BSTRIDE ALIGN_POWER_OF_TWO(CDEF_BLOCKSIZE + 2 * CDEF_HBORDER, 3)

#define CDEF_VERY_LARGE (30000)
#define CDEF_INBUF_SIZE (CDEF_BSTRIDE * (CDEF_BLOCKSIZE + 2 * CDEF_VBORDER))

extern const int cdef_directions[8][3];

typedef struct {
  uint8_t by;
  uint8_t bx;
  uint8_t skip;
} cdef_list;

typedef void (*cdef_direction_func)(uint16_t *y, int ystride,
                                    const uint16_t *in, int threshold, int dir,
                                    int damping);

int get_filter_skip(int level);

void cdef_filter_fb(uint8_t *dst, int dstride, uint16_t *y, uint16_t *in,
                    int xdec, int ydec, int dir[CDEF_NBLOCKS][CDEF_NBLOCKS],
                    int *dirinit, int var[CDEF_NBLOCKS][CDEF_NBLOCKS], int pli,
                    cdef_list *dlist, int cdef_count, int level,
                    int sec_strength, int sec_damping, int pri_damping,
                    int coeff_shift, int skip_dering, int hbd);
#endif