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