1/*
2 * Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include <stdint.h>
22
23#include "libavutil/attributes.h"
24#include "libavutil/arm/cpu.h"
25#include "libavcodec/h264dsp.h"
26#include "libavcodec/arm/startcode.h"
27
28void ff_h264_v_loop_filter_luma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
29                                     int beta, int8_t *tc0);
30void ff_h264_h_loop_filter_luma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
31                                     int beta, int8_t *tc0);
32void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
33                                       int beta, int8_t *tc0);
34void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
35                                       int beta, int8_t *tc0);
36void ff_h264_h_loop_filter_chroma422_neon(uint8_t *pix, ptrdiff_t stride, int alpha,
37                                          int beta, int8_t *tc0);
38
39void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height,
40                                   int log2_den, int weight, int offset);
41void ff_weight_h264_pixels_8_neon(uint8_t *dst, int stride, int height,
42                                  int log2_den, int weight, int offset);
43void ff_weight_h264_pixels_4_neon(uint8_t *dst, int stride, int height,
44                                  int log2_den, int weight, int offset);
45
46void ff_biweight_h264_pixels_16_neon(uint8_t *dst, uint8_t *src, int stride,
47                                     int height, int log2_den, int weightd,
48                                     int weights, int offset);
49void ff_biweight_h264_pixels_8_neon(uint8_t *dst, uint8_t *src, int stride,
50                                    int height, int log2_den, int weightd,
51                                    int weights, int offset);
52void ff_biweight_h264_pixels_4_neon(uint8_t *dst, uint8_t *src, int stride,
53                                    int height, int log2_den, int weightd,
54                                    int weights, int offset);
55
56void ff_h264_idct_add_neon(uint8_t *dst, int16_t *block, int stride);
57void ff_h264_idct_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
58void ff_h264_idct_add16_neon(uint8_t *dst, const int *block_offset,
59                             int16_t *block, int stride,
60                             const uint8_t nnzc[5 * 8]);
61void ff_h264_idct_add16intra_neon(uint8_t *dst, const int *block_offset,
62                                  int16_t *block, int stride,
63                                  const uint8_t nnzc[5 * 8]);
64void ff_h264_idct_add8_neon(uint8_t **dest, const int *block_offset,
65                            int16_t *block, int stride,
66                            const uint8_t nnzc[15 * 8]);
67
68void ff_h264_idct8_add_neon(uint8_t *dst, int16_t *block, int stride);
69void ff_h264_idct8_dc_add_neon(uint8_t *dst, int16_t *block, int stride);
70void ff_h264_idct8_add4_neon(uint8_t *dst, const int *block_offset,
71                             int16_t *block, int stride,
72                             const uint8_t nnzc[5 * 8]);
73
74static av_cold void h264dsp_init_neon(H264DSPContext *c, const int bit_depth,
75                                      const int chroma_format_idc)
76{
77#if HAVE_NEON
78    if (bit_depth == 8) {
79        c->h264_v_loop_filter_luma   = ff_h264_v_loop_filter_luma_neon;
80        c->h264_h_loop_filter_luma   = ff_h264_h_loop_filter_luma_neon;
81        c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
82
83        if (chroma_format_idc <= 1)
84            c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
85        else
86            c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma422_neon;
87
88        c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
89        c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;
90        c->weight_h264_pixels_tab[2] = ff_weight_h264_pixels_4_neon;
91
92        c->biweight_h264_pixels_tab[0] = ff_biweight_h264_pixels_16_neon;
93        c->biweight_h264_pixels_tab[1] = ff_biweight_h264_pixels_8_neon;
94        c->biweight_h264_pixels_tab[2] = ff_biweight_h264_pixels_4_neon;
95
96        c->h264_idct_add        = ff_h264_idct_add_neon;
97        c->h264_idct_dc_add     = ff_h264_idct_dc_add_neon;
98        c->h264_idct_add16      = ff_h264_idct_add16_neon;
99        c->h264_idct_add16intra = ff_h264_idct_add16intra_neon;
100        if (chroma_format_idc <= 1)
101            c->h264_idct_add8   = ff_h264_idct_add8_neon;
102        c->h264_idct8_add       = ff_h264_idct8_add_neon;
103        c->h264_idct8_dc_add    = ff_h264_idct8_dc_add_neon;
104        c->h264_idct8_add4      = ff_h264_idct8_add4_neon;
105    }
106#endif // HAVE_NEON
107}
108
109av_cold void ff_h264dsp_init_arm(H264DSPContext *c, const int bit_depth,
110                                 const int chroma_format_idc)
111{
112    int cpu_flags = av_get_cpu_flags();
113
114#if HAVE_ARMV6
115    if (have_setend(cpu_flags))
116        c->startcode_find_candidate = ff_startcode_find_candidate_armv6;
117#endif
118    if (have_neon(cpu_flags))
119        h264dsp_init_neon(c, bit_depth, chroma_format_idc);
120}
121