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/*
* V210 encoder DSP init
*
* Copyright (C) 2009 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_V210ENC_INIT_H
#define AVCODEC_V210ENC_INIT_H
#include <stddef.h>
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "v210enc.h"
#define CLIP(v, depth) av_clip(v, 1<<(depth-8), ((1<<depth)-(1<<(depth-8))-1))
#define WRITE_PIXELS(a, b, c, depth) \
do { \
val = CLIP(*a++, depth) << (10-depth); \
val |= (CLIP(*b++, depth) << (20-depth)) | \
(CLIP(*c++, depth) << (30-depth)); \
AV_WL32(dst, val); \
dst += 4; \
} while (0)
static void v210_planar_pack_8_c(const uint8_t *y, const uint8_t *u,
const uint8_t *v, uint8_t *dst,
ptrdiff_t width)
{
uint32_t val;
/* unroll this to match the assembly */
for (int i = 0; i < width - 11; i += 12) {
WRITE_PIXELS(u, y, v, 8);
WRITE_PIXELS(y, u, y, 8);
WRITE_PIXELS(v, y, u, 8);
WRITE_PIXELS(y, v, y, 8);
WRITE_PIXELS(u, y, v, 8);
WRITE_PIXELS(y, u, y, 8);
WRITE_PIXELS(v, y, u, 8);
WRITE_PIXELS(y, v, y, 8);
}
}
static void v210_planar_pack_10_c(const uint16_t *y, const uint16_t *u,
const uint16_t *v, uint8_t *dst,
ptrdiff_t width)
{
uint32_t val;
for (int i = 0; i < width - 5; i += 6) {
WRITE_PIXELS(u, y, v, 10);
WRITE_PIXELS(y, u, y, 10);
WRITE_PIXELS(v, y, u, 10);
WRITE_PIXELS(y, v, y, 10);
}
}
static av_cold av_unused void ff_v210enc_init(V210EncContext *s)
{
s->pack_line_8 = v210_planar_pack_8_c;
s->pack_line_10 = v210_planar_pack_10_c;
s->sample_factor_8 = 2;
s->sample_factor_10 = 1;
if (ARCH_X86)
ff_v210enc_init_x86(s);
}
#endif /* AVCODEC_V210ENC_INIT_H */
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