1 /*
2 * Copyright (c) 2016, Alliance for Open Media. All rights reserved
3 *
4 * This source code is subject to the terms of the BSD 2 Clause License and
5 * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
6 * was not distributed with this source code in the LICENSE file, you can
7 * obtain it at www.aomedia.org/license/software. If the Alliance for Open
8 * Media Patent License 1.0 was not distributed with this source code in the
9 * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
10 */
11
12 #ifndef AOM_AV1_COMMON_CDEF_BLOCK_H_
13 #define AOM_AV1_COMMON_CDEF_BLOCK_H_
14
15 #include "aom_dsp/odintrin.h"
16
17 #define CDEF_BLOCKSIZE 64
18 #define CDEF_BLOCKSIZE_LOG2 6
19 #define CDEF_NBLOCKS ((1 << MAX_SB_SIZE_LOG2) / 8)
20 #define CDEF_SB_SHIFT (MAX_SB_SIZE_LOG2 - CDEF_BLOCKSIZE_LOG2)
21
22 /* We need to buffer two vertical lines. */
23 #define CDEF_VBORDER (2)
24 /* We only need to buffer three horizontal pixels too, but let's align to
25 16 bytes (8 x 16 bits) to make vectorization easier. */
26 #define CDEF_HBORDER (8)
27 #define CDEF_BSTRIDE \
28 ALIGN_POWER_OF_TWO((1 << MAX_SB_SIZE_LOG2) + 2 * CDEF_HBORDER, 3)
29
30 #define CDEF_VERY_LARGE (0x4000)
31 #define CDEF_INBUF_SIZE \
32 (CDEF_BSTRIDE * ((1 << MAX_SB_SIZE_LOG2) + 2 * CDEF_VBORDER))
33
34 extern const int cdef_pri_taps[2][2];
35 extern const int cdef_sec_taps[2];
36 extern const int (*const cdef_directions)[2];
37
38 typedef struct {
39 uint8_t by;
40 uint8_t bx;
41 } cdef_list;
42
43 typedef void (*cdef_filter_block_func)(void *dest, int dstride,
44 const uint16_t *in, int pri_strength,
45 int sec_strength, int dir,
46 int pri_damping, int sec_damping,
47 int coeff_shift, int block_width,
48 int block_height);
49
50 void copy_cdef_16bit_to_16bit(uint16_t *dst, int dstride, uint16_t *src,
51 cdef_list *dlist, int cdef_count, int bsize);
52
53 void av1_cdef_filter_fb(uint8_t *dst8, uint16_t *dst16, int dstride,
54 const uint16_t *in, int xdec, int ydec,
55 int dir[CDEF_NBLOCKS][CDEF_NBLOCKS], int *dirinit,
56 int var[CDEF_NBLOCKS][CDEF_NBLOCKS], int pli,
57 cdef_list *dlist, int cdef_count, int level,
58 int sec_strength, int damping, int coeff_shift);
59
fill_rect(uint16_t * dst,int dstride,int v,int h,uint16_t x)60 static INLINE void fill_rect(uint16_t *dst, int dstride, int v, int h,
61 uint16_t x) {
62 for (int i = 0; i < v; i++) {
63 for (int j = 0; j < h; j++) {
64 dst[i * dstride + j] = x;
65 }
66 }
67 }
68 #endif // AOM_AV1_COMMON_CDEF_BLOCK_H_
69