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2ba45a60 DM |
1 | /* |
2 | * ARM-optimized IDCT functions | |
3 | * Copyright (c) 2001 Lionel Ulmer | |
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 | #include <stdint.h> | |
23 | ||
24 | #include "libavutil/attributes.h" | |
25 | #include "libavutil/cpu.h" | |
26 | #include "libavutil/arm/cpu.h" | |
27 | #include "libavcodec/avcodec.h" | |
28 | #include "libavcodec/idctdsp.h" | |
29 | #include "idct.h" | |
30 | #include "idctdsp_arm.h" | |
31 | ||
32 | void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest, | |
f6fa7814 | 33 | ptrdiff_t line_size); |
2ba45a60 DM |
34 | |
35 | /* XXX: those functions should be suppressed ASAP when all IDCTs are | |
36 | * converted */ | |
37 | static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block) | |
38 | { | |
39 | ff_j_rev_dct_arm(block); | |
40 | ff_put_pixels_clamped(block, dest, line_size); | |
41 | } | |
42 | ||
43 | static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block) | |
44 | { | |
45 | ff_j_rev_dct_arm(block); | |
46 | ff_add_pixels_clamped(block, dest, line_size); | |
47 | } | |
48 | ||
49 | static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block) | |
50 | { | |
51 | ff_simple_idct_arm(block); | |
52 | ff_put_pixels_clamped(block, dest, line_size); | |
53 | } | |
54 | ||
55 | static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block) | |
56 | { | |
57 | ff_simple_idct_arm(block); | |
58 | ff_add_pixels_clamped(block, dest, line_size); | |
59 | } | |
60 | ||
61 | av_cold void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx, | |
62 | unsigned high_bit_depth) | |
63 | { | |
64 | int cpu_flags = av_get_cpu_flags(); | |
65 | ||
66 | if (!avctx->lowres && !high_bit_depth) { | |
67 | if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & CODEC_FLAG_BITEXACT)) || | |
68 | avctx->idct_algo == FF_IDCT_ARM) { | |
69 | c->idct_put = j_rev_dct_arm_put; | |
70 | c->idct_add = j_rev_dct_arm_add; | |
71 | c->idct = ff_j_rev_dct_arm; | |
72 | c->perm_type = FF_IDCT_PERM_LIBMPEG2; | |
73 | } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM) { | |
74 | c->idct_put = simple_idct_arm_put; | |
75 | c->idct_add = simple_idct_arm_add; | |
76 | c->idct = ff_simple_idct_arm; | |
77 | c->perm_type = FF_IDCT_PERM_NONE; | |
78 | } | |
79 | } | |
80 | ||
81 | c->add_pixels_clamped = ff_add_pixels_clamped_arm; | |
82 | ||
83 | if (have_armv5te(cpu_flags)) | |
84 | ff_idctdsp_init_armv5te(c, avctx, high_bit_depth); | |
85 | if (have_armv6(cpu_flags)) | |
86 | ff_idctdsp_init_armv6(c, avctx, high_bit_depth); | |
87 | if (have_neon(cpu_flags)) | |
88 | ff_idctdsp_init_neon(c, avctx, high_bit_depth); | |
89 | } |