1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "config.h"
20 #include "libavutil/attributes.h"
21 #include "libswscale/swscale.h"
22 #include "libswscale/swscale_internal.h"
23 #include "libavutil/aarch64/cpu.h"
24
25 #define SCALE_FUNC(filter_n, from_bpc, to_bpc, opt) \
26 void ff_hscale ## from_bpc ## to ## to_bpc ## _ ## filter_n ## _ ## opt( \
27 SwsContext *c, int16_t *data, \
28 int dstW, const uint8_t *src, \
29 const int16_t *filter, \
30 const int32_t *filterPos, int filterSize)
31 #define SCALE_FUNCS(filter_n, opt) \
32 SCALE_FUNC(filter_n, 8, 15, opt);
33 #define ALL_SCALE_FUNCS(opt) \
34 SCALE_FUNCS(4, opt); \
35 SCALE_FUNCS(X8, opt)
36
37 ALL_SCALE_FUNCS(neon);
38
39 void ff_yuv2planeX_8_neon(const int16_t *filter, int filterSize,
40 const int16_t **src, uint8_t *dest, int dstW,
41 const uint8_t *dither, int offset);
42
43 #define ASSIGN_SCALE_FUNC2(hscalefn, filtersize, opt) do { \
44 if (c->srcBpc == 8 && c->dstBpc <= 14) { \
45 hscalefn = \
46 ff_hscale8to15_ ## filtersize ## _ ## opt; \
47 } \
48 } while (0)
49
50 #define ASSIGN_SCALE_FUNC(hscalefn, filtersize, opt) \
51 switch (filtersize) { \
52 case 4: ASSIGN_SCALE_FUNC2(hscalefn, 4, opt); break; \
53 default: if (filtersize % 8 == 0) \
54 ASSIGN_SCALE_FUNC2(hscalefn, X8, opt); \
55 break; \
56 }
57
ff_sws_init_swscale_aarch64(SwsContext * c)58 av_cold void ff_sws_init_swscale_aarch64(SwsContext *c)
59 {
60 int cpu_flags = av_get_cpu_flags();
61
62 if (have_neon(cpu_flags)) {
63 ASSIGN_SCALE_FUNC(c->hyScale, c->hLumFilterSize, neon);
64 ASSIGN_SCALE_FUNC(c->hcScale, c->hChrFilterSize, neon);
65 if (c->dstBpc == 8) {
66 c->yuv2planeX = ff_yuv2planeX_8_neon;
67 }
68 }
69 }
70