mirror of https://git.ffmpeg.org/ffmpeg.git
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
|
|
* 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 "config.h"
|
|
#include "libavutil/attributes.h"
|
|
#include "libavutil/cpu.h"
|
|
#include "libavutil/x86/cpu.h"
|
|
#include "libavcodec/idctdsp.h"
|
|
#include "libavcodec/xvididct.h"
|
|
#include "idct_xvid.h"
|
|
#include "idctdsp.h"
|
|
|
|
static const uint8_t idct_sse2_row_perm[8] = { 0, 4, 1, 5, 2, 6, 3, 7 };
|
|
|
|
static av_cold void init_scantable_permutation_sse2(uint8_t *idct_permutation,
|
|
enum idct_permutation_type perm_type)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 64; i++)
|
|
idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];
|
|
}
|
|
|
|
av_cold void ff_xvididct_init_x86(IDCTDSPContext *c)
|
|
{
|
|
int cpu_flags = av_get_cpu_flags();
|
|
|
|
if (INLINE_MMX(cpu_flags)) {
|
|
c->idct_put = ff_idct_xvid_mmx_put;
|
|
c->idct_add = ff_idct_xvid_mmx_add;
|
|
c->idct = ff_idct_xvid_mmx;
|
|
}
|
|
|
|
if (INLINE_MMXEXT(cpu_flags)) {
|
|
c->idct_put = ff_idct_xvid_mmxext_put;
|
|
c->idct_add = ff_idct_xvid_mmxext_add;
|
|
c->idct = ff_idct_xvid_mmxext;
|
|
}
|
|
|
|
if (INLINE_SSE2(cpu_flags)) {
|
|
c->idct_put = ff_idct_xvid_sse2_put;
|
|
c->idct_add = ff_idct_xvid_sse2_add;
|
|
c->idct = ff_idct_xvid_sse2;
|
|
c->perm_type = FF_IDCT_PERM_SSE2;
|
|
|
|
init_scantable_permutation_sse2(c->idct_permutation, c->perm_type);
|
|
}
|
|
}
|