2 * ARM-NEON-optimized IDCT functions
3 * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libavutil/attributes.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavcodec/idctdsp.h"
27 #include "idctdsp_arm.h"
29 void ff_simple_idct_neon(int16_t *data);
30 void ff_simple_idct_put_neon(uint8_t *dest, int line_size, int16_t *data);
31 void ff_simple_idct_add_neon(uint8_t *dest, int line_size, int16_t *data);
33 void ff_add_pixels_clamped_neon(const int16_t *, uint8_t *, int);
34 void ff_put_pixels_clamped_neon(const int16_t *, uint8_t *, int);
35 void ff_put_signed_pixels_clamped_neon(const int16_t *, uint8_t *, int);
37 av_cold void ff_idctdsp_init_neon(IDCTDSPContext *c, AVCodecContext *avctx,
38 unsigned high_bit_depth)
40 if (!high_bit_depth) {
41 if (avctx->idct_algo == FF_IDCT_AUTO ||
42 avctx->idct_algo == FF_IDCT_SIMPLENEON) {
43 c->idct_put = ff_simple_idct_put_neon;
44 c->idct_add = ff_simple_idct_add_neon;
45 c->idct = ff_simple_idct_neon;
46 c->perm_type = FF_IDCT_PERM_PARTTRANS;
50 c->add_pixels_clamped = ff_add_pixels_clamped_neon;
51 c->put_pixels_clamped = ff_put_pixels_clamped_neon;
52 c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_neon;