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1 | /* | ||
2 | * Copyright (c) 2007 Benoit Fouet | ||
3 | * Copyright (c) 2010 Stefano Sabatini | ||
4 | * | ||
5 | * This file is part of FFmpeg. | ||
6 | * | ||
7 | * FFmpeg is free software; you can redistribute it and/or | ||
8 | * modify it under the terms of the GNU Lesser General Public | ||
9 | * License as published by the Free Software Foundation; either | ||
10 | * version 2.1 of the License, or (at your option) any later version. | ||
11 | * | ||
12 | * FFmpeg is distributed in the hope that it will be useful, | ||
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
15 | * Lesser General Public License for more details. | ||
16 | * | ||
17 | * You should have received a copy of the GNU Lesser General Public | ||
18 | * License along with FFmpeg; if not, write to the Free Software | ||
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
20 | */ | ||
21 | |||
22 | #ifndef AVFILTER_HFLIP_INIT_H | ||
23 | #define AVFILTER_HFLIP_INIT_H | ||
24 | |||
25 | #include <stdint.h> | ||
26 | |||
27 | #include "config.h" | ||
28 | #include "libavutil/attributes.h" | ||
29 | #include "libavutil/intreadwrite.h" | ||
30 | #include "hflip.h" | ||
31 | |||
32 | 17037 | static void hflip_byte_c(const uint8_t *src, uint8_t *dst, int w) | |
33 | { | ||
34 |
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5044365 | for (int j = 0; j < w; j++) |
35 | 5027328 | dst[j] = src[-j]; | |
36 | 17037 | } | |
37 | |||
38 | 80157 | static void hflip_short_c(const uint8_t *ssrc, uint8_t *ddst, int w) | |
39 | { | ||
40 | 80157 | const uint16_t *src = (const uint16_t *)ssrc; | |
41 | 80157 | uint16_t *dst = (uint16_t *)ddst; | |
42 | |||
43 |
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25448541 | for (int j = 0; j < w; j++) |
44 | 25368384 | dst[j] = src[-j]; | |
45 | 80157 | } | |
46 | |||
47 | 13248 | static void hflip_dword_c(const uint8_t *ssrc, uint8_t *ddst, int w) | |
48 | { | ||
49 | 13248 | const uint32_t *src = (const uint32_t *)ssrc; | |
50 | 13248 | uint32_t *dst = (uint32_t *)ddst; | |
51 | |||
52 |
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4220352 | for (int j = 0; j < w; j++) |
53 | 4207104 | dst[j] = src[-j]; | |
54 | 13248 | } | |
55 | |||
56 | 576 | static void hflip_b24_c(const uint8_t *src, uint8_t *dst, int w) | |
57 | { | ||
58 | 576 | const uint8_t *in = src; | |
59 | 576 | uint8_t *out = dst; | |
60 | |||
61 |
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203328 | for (int j = 0; j < w; j++, out += 3, in -= 3) { |
62 | 202752 | int32_t v = AV_RB24(in); | |
63 | |||
64 | 202752 | AV_WB24(out, v); | |
65 | } | ||
66 | 576 | } | |
67 | |||
68 | 1728 | static void hflip_b48_c(const uint8_t *src, uint8_t *dst, int w) | |
69 | { | ||
70 | 1728 | const uint8_t *in = src; | |
71 | 1728 | uint8_t *out = dst; | |
72 | |||
73 |
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609984 | for (int j = 0; j < w; j++, out += 6, in -= 6) { |
74 | 608256 | int64_t v = AV_RB48(in); | |
75 | |||
76 | 608256 | AV_WB48(out, v); | |
77 | } | ||
78 | 1728 | } | |
79 | |||
80 | 1728 | static void hflip_qword_c(const uint8_t *ssrc, uint8_t *ddst, int w) | |
81 | { | ||
82 | 1728 | const uint64_t *src = (const uint64_t *)ssrc; | |
83 | 1728 | uint64_t *dst = (uint64_t *)ddst; | |
84 | |||
85 |
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609984 | for (int j = 0; j < w; j++) |
86 | 608256 | dst[j] = src[-j]; | |
87 | 1728 | } | |
88 | |||
89 | 203 | static av_unused int ff_hflip_init(FlipContext *s, int step[4], int nb_planes) | |
90 | { | ||
91 |
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731 | for (int i = 0; i < nb_planes; i++) { |
92 | 528 | step[i] *= s->bayer_plus1; | |
93 |
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528 | switch (step[i]) { |
94 | 115 | case 1: s->flip_line[i] = hflip_byte_c; break; | |
95 | 350 | case 2: s->flip_line[i] = hflip_short_c; break; | |
96 | 2 | case 3: s->flip_line[i] = hflip_b24_c; break; | |
97 | 49 | case 4: s->flip_line[i] = hflip_dword_c; break; | |
98 | 6 | case 6: s->flip_line[i] = hflip_b48_c; break; | |
99 | 6 | case 8: s->flip_line[i] = hflip_qword_c; break; | |
100 | ✗ | default: | |
101 | ✗ | return AVERROR_BUG; | |
102 | } | ||
103 | } | ||
104 | #if ARCH_X86 | ||
105 | 203 | ff_hflip_init_x86(s, step, nb_planes); | |
106 | #endif | ||
107 | |||
108 | 203 | return 0; | |
109 | } | ||
110 | |||
111 | #endif /* AVFILTER_HFLIP_INIT_H */ | ||
112 |