avcodec/idctdsp: make add/put_pixels_clamped_c internal functions
[ffmpeg.git] / libavcodec / arm / idctdsp_init_arm.c
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 /* XXX: local hack */
33 static void (*put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
34 static void (*add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
35
36 void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest,
37                                int line_size);
38
39 /* XXX: those functions should be suppressed ASAP when all IDCTs are
40  * converted */
41 static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
42 {
43     ff_j_rev_dct_arm(block);
44     put_pixels_clamped(block, dest, line_size);
45 }
46
47 static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
48 {
49     ff_j_rev_dct_arm(block);
50     add_pixels_clamped(block, dest, line_size);
51 }
52
53 static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
54 {
55     ff_simple_idct_arm(block);
56     put_pixels_clamped(block, dest, line_size);
57 }
58
59 static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
60 {
61     ff_simple_idct_arm(block);
62     add_pixels_clamped(block, dest, line_size);
63 }
64
65 av_cold void ff_idctdsp_init_arm(IDCTDSPContext *c, AVCodecContext *avctx,
66                                  unsigned high_bit_depth)
67 {
68     int cpu_flags = av_get_cpu_flags();
69
70     put_pixels_clamped = c->put_pixels_clamped;
71     add_pixels_clamped = c->add_pixels_clamped;
72
73     if (!avctx->lowres && !high_bit_depth) {
74         if ((avctx->idct_algo == FF_IDCT_AUTO && !(avctx->flags & CODEC_FLAG_BITEXACT)) ||
75             avctx->idct_algo == FF_IDCT_ARM) {
76             c->idct_put  = j_rev_dct_arm_put;
77             c->idct_add  = j_rev_dct_arm_add;
78             c->idct      = ff_j_rev_dct_arm;
79             c->perm_type = FF_IDCT_PERM_LIBMPEG2;
80         } else if (avctx->idct_algo == FF_IDCT_SIMPLEARM) {
81             c->idct_put  = simple_idct_arm_put;
82             c->idct_add  = simple_idct_arm_add;
83             c->idct      = ff_simple_idct_arm;
84             c->perm_type = FF_IDCT_PERM_NONE;
85         }
86     }
87
88     c->add_pixels_clamped = ff_add_pixels_clamped_arm;
89
90     if (have_armv5te(cpu_flags))
91         ff_idctdsp_init_armv5te(c, avctx, high_bit_depth);
92     if (have_armv6(cpu_flags))
93         ff_idctdsp_init_armv6(c, avctx, high_bit_depth);
94     if (have_neon(cpu_flags))
95         ff_idctdsp_init_neon(c, avctx, high_bit_depth);
96 }