2 * ARM optimized DSP utils
3 * Copyright (c) 2001 Lionel Ulmer
5 * This file is part of FFmpeg.
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.
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.
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
22 #include "libavutil/attributes.h"
23 #include "libavutil/arm/cpu.h"
24 #include "dsputil_arm.h"
26 void ff_j_rev_dct_arm(int16_t *data);
27 void ff_simple_idct_arm(int16_t *data);
30 static void (*ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
31 static void (*ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, int line_size);
33 void ff_add_pixels_clamped_arm(const int16_t *block, uint8_t *dest,
36 /* XXX: those functions should be suppressed ASAP when all IDCTs are
38 static void j_rev_dct_arm_put(uint8_t *dest, int line_size, int16_t *block)
40 ff_j_rev_dct_arm (block);
41 ff_put_pixels_clamped(block, dest, line_size);
43 static void j_rev_dct_arm_add(uint8_t *dest, int line_size, int16_t *block)
45 ff_j_rev_dct_arm (block);
46 ff_add_pixels_clamped(block, dest, line_size);
48 static void simple_idct_arm_put(uint8_t *dest, int line_size, int16_t *block)
50 ff_simple_idct_arm (block);
51 ff_put_pixels_clamped(block, dest, line_size);
53 static void simple_idct_arm_add(uint8_t *dest, int line_size, int16_t *block)
55 ff_simple_idct_arm (block);
56 ff_add_pixels_clamped(block, dest, line_size);
59 av_cold void ff_dsputil_init_arm(DSPContext *c, AVCodecContext *avctx)
61 int cpu_flags = av_get_cpu_flags();
63 ff_put_pixels_clamped = c->put_pixels_clamped;
64 ff_add_pixels_clamped = c->add_pixels_clamped;
66 if (!avctx->lowres && avctx->bits_per_raw_sample <= 8) {
67 if(avctx->idct_algo == FF_IDCT_AUTO ||
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->idct_permutation_type = FF_LIBMPEG2_IDCT_PERM;
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->idct_permutation_type = FF_NO_IDCT_PERM;
81 c->add_pixels_clamped = ff_add_pixels_clamped_arm;
83 if (have_armv5te(cpu_flags)) ff_dsputil_init_armv5te(c, avctx);
84 if (have_armv6(cpu_flags)) ff_dsputil_init_armv6(c, avctx);
85 if (have_neon(cpu_flags)) ff_dsputil_init_neon(c, avctx);