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2ba45a60 DM |
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 <stdint.h> | |
20 | ||
21 | #include "config.h" | |
22 | #include "libavutil/attributes.h" | |
23 | #include "avcodec.h" | |
24 | #include "pixblockdsp.h" | |
25 | ||
26 | #define BIT_DEPTH 16 | |
27 | #include "pixblockdsp_template.c" | |
28 | #undef BIT_DEPTH | |
29 | ||
30 | #define BIT_DEPTH 8 | |
31 | #include "pixblockdsp_template.c" | |
32 | ||
33 | static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1, | |
34 | const uint8_t *s2, int stride) | |
35 | { | |
36 | int i; | |
37 | ||
38 | /* read the pixels */ | |
39 | for (i = 0; i < 8; i++) { | |
40 | block[0] = s1[0] - s2[0]; | |
41 | block[1] = s1[1] - s2[1]; | |
42 | block[2] = s1[2] - s2[2]; | |
43 | block[3] = s1[3] - s2[3]; | |
44 | block[4] = s1[4] - s2[4]; | |
45 | block[5] = s1[5] - s2[5]; | |
46 | block[6] = s1[6] - s2[6]; | |
47 | block[7] = s1[7] - s2[7]; | |
48 | s1 += stride; | |
49 | s2 += stride; | |
50 | block += 8; | |
51 | } | |
52 | } | |
53 | ||
54 | av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx) | |
55 | { | |
56 | const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8; | |
57 | ||
58 | c->diff_pixels = diff_pixels_c; | |
59 | ||
60 | switch (avctx->bits_per_raw_sample) { | |
61 | case 9: | |
62 | case 10: | |
63 | case 12: | |
64 | case 14: | |
65 | c->get_pixels = get_pixels_16_c; | |
66 | break; | |
67 | default: | |
68 | if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) { | |
69 | c->get_pixels = get_pixels_8_c; | |
70 | } | |
71 | break; | |
72 | } | |
73 | ||
74 | if (ARCH_ALPHA) | |
75 | ff_pixblockdsp_init_alpha(c, avctx, high_bit_depth); | |
76 | if (ARCH_ARM) | |
77 | ff_pixblockdsp_init_arm(c, avctx, high_bit_depth); | |
78 | if (ARCH_PPC) | |
79 | ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth); | |
80 | if (ARCH_X86) | |
81 | ff_pixblockdsp_init_x86(c, avctx, high_bit_depth); | |
82 | } |