2 * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
4 * This file is part of FFmpeg.
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.
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.
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
21 #include "libavutil/attributes.h"
22 #include "libavcodec/idctdsp.h"
23 #include "idctdsp_alpha.h"
26 void put_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
28 void add_pixels_clamped_mvi_asm(const int16_t *block, uint8_t *pixels,
31 void (*put_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
33 void (*add_pixels_clamped_axp_p)(const int16_t *block, uint8_t *pixels,
36 av_cold void ff_idctdsp_init_alpha(IDCTDSPContext *c, AVCodecContext *avctx,
37 unsigned high_bit_depth)
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;
45 put_pixels_clamped_axp_p = c->put_pixels_clamped;
46 add_pixels_clamped_axp_p = c->add_pixels_clamped;
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;