/* * 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 */ }