1 /*
2  * Copyright (c) 2017 Google Inc.
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/internal.h"
25 #include "libavutil/mem_internal.h"
26 #include "libavutil/arm/cpu.h"
27 #include "vp9dsp_init.h"
28 
29 #define declare_fpel(type, sz, suffix)                                          \
30 void ff_vp9_##type##sz##suffix##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
31                                       const uint8_t *src, ptrdiff_t src_stride, \
32                                       int h, int mx, int my)
33 
34 #define decl_mc_func(op, filter, dir, sz, bpp)                                                   \
35 void ff_vp9_##op##_##filter##sz##_##dir##_##bpp##_neon(uint8_t *dst, ptrdiff_t dst_stride,       \
36                                                        const uint8_t *src, ptrdiff_t src_stride, \
37                                                        int h, int mx, int my)
38 
39 #define define_8tap_2d_fn(op, filter, sz, bpp)                                      \
40 static void op##_##filter##sz##_hv_##bpp##_neon(uint8_t *dst, ptrdiff_t dst_stride, \
41                                                 const uint8_t *src,                 \
42                                                 ptrdiff_t src_stride,               \
43                                                 int h, int mx, int my)              \
44 {                                                                                   \
45     LOCAL_ALIGNED_16(uint8_t, temp, [((1 + (sz < 64)) * sz + 8) * sz * 2]);         \
46     /* We only need h + 7 lines, but the horizontal filter assumes an               \
47      * even number of rows, so filter h + 8 lines here. */                          \
48     ff_vp9_put_##filter##sz##_h_##bpp##_neon(temp, 2 * sz,                          \
49                                              src - 3 * src_stride, src_stride,      \
50                                              h + 8, mx, 0);                         \
51     ff_vp9_##op##_##filter##sz##_v_##bpp##_neon(dst, dst_stride,                    \
52                                                 temp + 3 * 2 * sz, 2 * sz,          \
53                                                 h, 0, my);                          \
54 }
55 
56 #define decl_filter_funcs(op, dir, sz, bpp)  \
57     decl_mc_func(op, regular, dir, sz, bpp); \
58     decl_mc_func(op, sharp,   dir, sz, bpp); \
59     decl_mc_func(op, smooth,  dir, sz, bpp)
60 
61 #define decl_mc_funcs(sz, bpp)      \
62     decl_filter_funcs(put, h,  sz, bpp); \
63     decl_filter_funcs(avg, h,  sz, bpp); \
64     decl_filter_funcs(put, v,  sz, bpp); \
65     decl_filter_funcs(avg, v,  sz, bpp); \
66     decl_filter_funcs(put, hv, sz, bpp); \
67     decl_filter_funcs(avg, hv, sz, bpp)
68 
69 declare_fpel(copy, 128, );
70 declare_fpel(copy, 64,  );
71 declare_fpel(copy, 32,  );
72 declare_fpel(copy, 16,  );
73 declare_fpel(copy, 8,   );
74 declare_fpel(avg, 64, _16);
75 declare_fpel(avg, 32, _16);
76 declare_fpel(avg, 16, _16);
77 declare_fpel(avg, 8,  _16);
78 declare_fpel(avg, 4,  _16);
79 
80 decl_mc_funcs(64, BPP);
81 decl_mc_funcs(32, BPP);
82 decl_mc_funcs(16, BPP);
83 decl_mc_funcs(8,  BPP);
84 decl_mc_funcs(4,  BPP);
85 
86 #define define_8tap_2d_funcs(sz, bpp)        \
87     define_8tap_2d_fn(put, regular, sz, bpp) \
88     define_8tap_2d_fn(put, sharp,   sz, bpp) \
89     define_8tap_2d_fn(put, smooth,  sz, bpp) \
90     define_8tap_2d_fn(avg, regular, sz, bpp) \
91     define_8tap_2d_fn(avg, sharp,   sz, bpp) \
92     define_8tap_2d_fn(avg, smooth,  sz, bpp)
93 
94 define_8tap_2d_funcs(64, BPP)
95 define_8tap_2d_funcs(32, BPP)
96 define_8tap_2d_funcs(16, BPP)
97 define_8tap_2d_funcs(8,  BPP)
98 define_8tap_2d_funcs(4,  BPP)
99 
100 
vp9dsp_mc_init_arm(VP9DSPContext * dsp)101 static av_cold void vp9dsp_mc_init_arm(VP9DSPContext *dsp)
102 {
103     int cpu_flags = av_get_cpu_flags();
104 
105     if (have_neon(cpu_flags)) {
106 #define init_fpel(idx1, idx2, sz, type, suffix)      \
107     dsp->mc[idx1][FILTER_8TAP_SMOOTH ][idx2][0][0] = \
108     dsp->mc[idx1][FILTER_8TAP_REGULAR][idx2][0][0] = \
109     dsp->mc[idx1][FILTER_8TAP_SHARP  ][idx2][0][0] = \
110     dsp->mc[idx1][FILTER_BILINEAR    ][idx2][0][0] = ff_vp9_##type##sz##suffix##_neon
111 
112 #define init_copy_avg(idx, sz1, sz2) \
113     init_fpel(idx, 0, sz2, copy, );  \
114     init_fpel(idx, 1, sz1, avg, _16)
115 
116 #define init_mc_func(idx1, idx2, op, filter, fname, dir, mx, my, sz, pfx, bpp) \
117     dsp->mc[idx1][filter][idx2][mx][my] = pfx##op##_##fname##sz##_##dir##_##bpp##_neon
118 
119 #define init_mc_funcs(idx, dir, mx, my, sz, pfx, bpp)                                   \
120     init_mc_func(idx, 0, put, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx, bpp); \
121     init_mc_func(idx, 0, put, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx, bpp); \
122     init_mc_func(idx, 0, put, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx, bpp); \
123     init_mc_func(idx, 1, avg, FILTER_8TAP_REGULAR, regular, dir, mx, my, sz, pfx, bpp); \
124     init_mc_func(idx, 1, avg, FILTER_8TAP_SHARP,   sharp,   dir, mx, my, sz, pfx, bpp); \
125     init_mc_func(idx, 1, avg, FILTER_8TAP_SMOOTH,  smooth,  dir, mx, my, sz, pfx, bpp)
126 
127 #define init_mc_funcs_dirs(idx, sz, bpp)            \
128     init_mc_funcs(idx, h,  1, 0, sz, ff_vp9_, bpp); \
129     init_mc_funcs(idx, v,  0, 1, sz, ff_vp9_, bpp); \
130     init_mc_funcs(idx, hv, 1, 1, sz,        , bpp)
131 
132         init_copy_avg(0, 64, 128);
133         init_copy_avg(1, 32, 64);
134         init_copy_avg(2, 16, 32);
135         init_copy_avg(3, 8,  16);
136         init_copy_avg(4, 4,  8);
137 
138         init_mc_funcs_dirs(0, 64, BPP);
139         init_mc_funcs_dirs(1, 32, BPP);
140         init_mc_funcs_dirs(2, 16, BPP);
141         init_mc_funcs_dirs(3, 8,  BPP);
142         init_mc_funcs_dirs(4, 4,  BPP);
143     }
144 }
145 
146 #define define_itxfm2(type_a, type_b, sz, bpp)                                     \
147 void ff_vp9_##type_a##_##type_b##_##sz##x##sz##_add_##bpp##_neon(uint8_t *_dst,    \
148                                                                  ptrdiff_t stride, \
149                                                                  int16_t *_block, int eob)
150 #define define_itxfm(type_a, type_b, sz, bpp) define_itxfm2(type_a, type_b, sz, bpp)
151 
152 #define define_itxfm_funcs(sz, bpp)      \
153     define_itxfm(idct,  idct,  sz, bpp); \
154     define_itxfm(iadst, idct,  sz, bpp); \
155     define_itxfm(idct,  iadst, sz, bpp); \
156     define_itxfm(iadst, iadst, sz, bpp)
157 
158 define_itxfm_funcs(4,  BPP);
159 define_itxfm_funcs(8,  BPP);
160 define_itxfm_funcs(16, BPP);
161 define_itxfm(idct, idct, 32, BPP);
162 define_itxfm(iwht, iwht, 4,  BPP);
163 
164 
vp9dsp_itxfm_init_arm(VP9DSPContext * dsp)165 static av_cold void vp9dsp_itxfm_init_arm(VP9DSPContext *dsp)
166 {
167     int cpu_flags = av_get_cpu_flags();
168 
169     if (have_neon(cpu_flags)) {
170 #define init_itxfm2(tx, sz, bpp)                                               \
171     dsp->itxfm_add[tx][DCT_DCT]   = ff_vp9_idct_idct_##sz##_add_##bpp##_neon;  \
172     dsp->itxfm_add[tx][DCT_ADST]  = ff_vp9_iadst_idct_##sz##_add_##bpp##_neon; \
173     dsp->itxfm_add[tx][ADST_DCT]  = ff_vp9_idct_iadst_##sz##_add_##bpp##_neon; \
174     dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_iadst_iadst_##sz##_add_##bpp##_neon
175 #define init_itxfm(tx, sz, bpp) init_itxfm2(tx, sz, bpp)
176 
177 #define init_idct2(tx, nm, bpp)     \
178     dsp->itxfm_add[tx][DCT_DCT]   = \
179     dsp->itxfm_add[tx][ADST_DCT]  = \
180     dsp->itxfm_add[tx][DCT_ADST]  = \
181     dsp->itxfm_add[tx][ADST_ADST] = ff_vp9_##nm##_add_##bpp##_neon
182 #define init_idct(tx, nm, bpp) init_idct2(tx, nm, bpp)
183 
184         init_itxfm(TX_4X4,   4x4,   BPP);
185         init_itxfm(TX_8X8,   8x8,   BPP);
186         init_itxfm(TX_16X16, 16x16, BPP);
187         init_idct(TX_32X32, idct_idct_32x32, BPP);
188         init_idct(4,        iwht_iwht_4x4,   BPP);
189     }
190 }
191 
192 #define define_loop_filter(dir, wd, size, bpp) \
193 void ff_vp9_loop_filter_##dir##_##wd##_##size##_##bpp##_neon(uint8_t *dst, ptrdiff_t stride, int E, int I, int H)
194 
195 #define define_loop_filters(wd, size, bpp) \
196     define_loop_filter(h, wd, size, bpp);  \
197     define_loop_filter(v, wd, size, bpp)
198 
199 define_loop_filters(4,  8,  BPP);
200 define_loop_filters(8,  8,  BPP);
201 define_loop_filters(16, 8,  BPP);
202 
203 define_loop_filters(16, 16, BPP);
204 
205 define_loop_filters(44, 16, BPP);
206 define_loop_filters(48, 16, BPP);
207 define_loop_filters(84, 16, BPP);
208 define_loop_filters(88, 16, BPP);
209 
vp9dsp_loopfilter_init_arm(VP9DSPContext * dsp)210 static av_cold void vp9dsp_loopfilter_init_arm(VP9DSPContext *dsp)
211 {
212     int cpu_flags = av_get_cpu_flags();
213 
214     if (have_neon(cpu_flags)) {
215 #define init_lpf_func_8(idx1, idx2, dir, wd, bpp) \
216     dsp->loop_filter_8[idx1][idx2] = ff_vp9_loop_filter_##dir##_##wd##_8_##bpp##_neon
217 
218 #define init_lpf_func_16(idx, dir, bpp) \
219     dsp->loop_filter_16[idx] = ff_vp9_loop_filter_##dir##_16_16_##bpp##_neon
220 
221 #define init_lpf_func_mix2(idx1, idx2, idx3, dir, wd, bpp) \
222     dsp->loop_filter_mix2[idx1][idx2][idx3] = ff_vp9_loop_filter_##dir##_##wd##_16_##bpp##_neon
223 
224 #define init_lpf_funcs_8_wd(idx, wd, bpp) \
225     init_lpf_func_8(idx, 0, h, wd, bpp);  \
226     init_lpf_func_8(idx, 1, v, wd, bpp)
227 
228 #define init_lpf_funcs_16(bpp)   \
229     init_lpf_func_16(0, h, bpp); \
230     init_lpf_func_16(1, v, bpp)
231 
232 #define init_lpf_funcs_mix2_wd(idx1, idx2, wd, bpp) \
233     init_lpf_func_mix2(idx1, idx2, 0, h, wd, bpp);  \
234     init_lpf_func_mix2(idx1, idx2, 1, v, wd, bpp)
235 
236 #define init_lpf_funcs_8(bpp)        \
237     init_lpf_funcs_8_wd(0, 4,  bpp); \
238     init_lpf_funcs_8_wd(1, 8,  bpp); \
239     init_lpf_funcs_8_wd(2, 16, bpp)
240 
241 #define init_lpf_funcs_mix2(bpp)           \
242     init_lpf_funcs_mix2_wd(0, 0, 44, bpp); \
243     init_lpf_funcs_mix2_wd(0, 1, 48, bpp); \
244     init_lpf_funcs_mix2_wd(1, 0, 84, bpp); \
245     init_lpf_funcs_mix2_wd(1, 1, 88, bpp)
246 
247         init_lpf_funcs_8(BPP);
248         init_lpf_funcs_16(BPP);
249         init_lpf_funcs_mix2(BPP);
250     }
251 }
252 
INIT_FUNC(VP9DSPContext * dsp)253 av_cold void INIT_FUNC(VP9DSPContext *dsp)
254 {
255     vp9dsp_mc_init_arm(dsp);
256     vp9dsp_loopfilter_init_arm(dsp);
257     vp9dsp_itxfm_init_arm(dsp);
258 }
259