mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
2.1 KiB
55 lines
2.1 KiB
/* |
|
* Format Conversion Utils |
|
* Copyright (c) 2000, 2001 Fabrice Bellard |
|
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
|
* |
|
* MMX optimization by Nick Kurshev <nickols_k@mail.ru> |
|
* |
|
* 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 "libavutil/attributes.h" |
|
#include "libavutil/cpu.h" |
|
#include "libavutil/x86/cpu.h" |
|
#include "libavcodec/fmtconvert.h" |
|
|
|
#if HAVE_X86ASM |
|
|
|
void ff_int32_to_float_fmul_scalar_sse (float *dst, const int32_t *src, float mul, int len); |
|
void ff_int32_to_float_fmul_scalar_sse2(float *dst, const int32_t *src, float mul, int len); |
|
void ff_int32_to_float_fmul_array8_sse (FmtConvertContext *c, float *dst, const int32_t *src, |
|
const float *mul, int len); |
|
void ff_int32_to_float_fmul_array8_sse2(FmtConvertContext *c, float *dst, const int32_t *src, |
|
const float *mul, int len); |
|
|
|
#endif /* HAVE_X86ASM */ |
|
|
|
av_cold void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx) |
|
{ |
|
#if HAVE_X86ASM |
|
int cpu_flags = av_get_cpu_flags(); |
|
|
|
if (EXTERNAL_SSE(cpu_flags)) { |
|
c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse; |
|
c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse; |
|
} |
|
if (EXTERNAL_SSE2(cpu_flags)) { |
|
c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse2; |
|
c->int32_to_float_fmul_array8 = ff_int32_to_float_fmul_array8_sse2; |
|
} |
|
#endif /* HAVE_X86ASM */ |
|
}
|
|
|