1/*
2 * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#include "libavutil/attributes.h"
22#include "libavcodec/idctdsp.h"
23#include "idctdsp_alpha.h"
24#include "asm.h"
25
26void put_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
27                                int line_size);
28void add_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
29                                int line_size);
30
31void (*put_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
32                                 int line_size);
33void (*add_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
34                                 int line_size);
35
36av_cold void ff_idctdsp_init_alpha(IDCTDSPContext *c, AVCodecContext *avctx,
37                                   unsigned high_bit_depth)
38{
39    /* amask clears all bits that correspond to present features.  */
40    if (amask(AMASK_MVI) == 0) {
41        c->put_pixels_clamped = put_pixels_clamped_mvi_asm;
42        c->add_pixels_clamped = add_pixels_clamped_mvi_asm;
43    }
44
45    put_pixels_clamped_axp_p = c->put_pixels_clamped;
46    add_pixels_clamped_axp_p = c->add_pixels_clamped;
47
48    if (!high_bit_depth && !avctx->lowres &&
49        (avctx->idct_algo == FF_IDCT_AUTO ||
50         avctx->idct_algo == FF_IDCT_SIMPLEALPHA)) {
51        c->idct_put = ff_simple_idct_put_axp;
52        c->idct_add = ff_simple_idct_add_axp;
53        c->idct =     ff_simple_idct_axp;
54    }
55}
56