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/*
* 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
*/
#include <stdint.h>
#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "pixblockdsp.h"
static void get_pixels_16_c(int16_t *av_restrict block, const uint8_t *pixels,
ptrdiff_t stride)
{
AV_COPY128U(block + 0 * 8, pixels + 0 * stride);
AV_COPY128U(block + 1 * 8, pixels + 1 * stride);
AV_COPY128U(block + 2 * 8, pixels + 2 * stride);
AV_COPY128U(block + 3 * 8, pixels + 3 * stride);
AV_COPY128U(block + 4 * 8, pixels + 4 * stride);
AV_COPY128U(block + 5 * 8, pixels + 5 * stride);
AV_COPY128U(block + 6 * 8, pixels + 6 * stride);
AV_COPY128U(block + 7 * 8, pixels + 7 * stride);
}
static void get_pixels_8_c(int16_t *av_restrict block, const uint8_t *pixels,
ptrdiff_t stride)
{
int i;
/* read the pixels */
for (i = 0; i < 8; i++) {
block[0] = pixels[0];
block[1] = pixels[1];
block[2] = pixels[2];
block[3] = pixels[3];
block[4] = pixels[4];
block[5] = pixels[5];
block[6] = pixels[6];
block[7] = pixels[7];
pixels += stride;
block += 8;
}
}
static void diff_pixels_c(int16_t *av_restrict block, const uint8_t *s1,
const uint8_t *s2, ptrdiff_t stride)
{
int i;
/* read the pixels */
for (i = 0; i < 8; i++) {
block[0] = s1[0] - s2[0];
block[1] = s1[1] - s2[1];
block[2] = s1[2] - s2[2];
block[3] = s1[3] - s2[3];
block[4] = s1[4] - s2[4];
block[5] = s1[5] - s2[5];
block[6] = s1[6] - s2[6];
block[7] = s1[7] - s2[7];
s1 += stride;
s2 += stride;
block += 8;
}
}
av_cold void ff_pixblockdsp_init(PixblockDSPContext *c, AVCodecContext *avctx)
{
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
c->diff_pixels_unaligned =
c->diff_pixels = diff_pixels_c;
switch (avctx->bits_per_raw_sample) {
case 9:
case 10:
case 12:
case 14:
c->get_pixels = get_pixels_16_c;
break;
default:
if (avctx->bits_per_raw_sample<=8 || avctx->codec_type != AVMEDIA_TYPE_VIDEO) {
c->get_pixels = get_pixels_8_c;
}
break;
}
if (ARCH_ALPHA)
ff_pixblockdsp_init_alpha(c, avctx, high_bit_depth);
if (ARCH_ARM)
ff_pixblockdsp_init_arm(c, avctx, high_bit_depth);
if (ARCH_PPC)
ff_pixblockdsp_init_ppc(c, avctx, high_bit_depth);
if (ARCH_X86)
ff_pixblockdsp_init_x86(c, avctx, high_bit_depth);
if (ARCH_MIPS)
ff_pixblockdsp_init_mips(c, avctx, high_bit_depth);
}
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