/* * Format Conversion Utils * Copyright (c) 2000, 2001 Fabrice Bellard * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> * * 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 * * MMX optimization by Nick Kurshev <nickols_k@mail.ru> */ #include "libavutil/cpu.h" #include "libavutil/x86_cpu.h" #include "libavcodec/fmtconvert.h" #if HAVE_YASM void ff_int32_to_float_fmul_scalar_sse (float *dst, const int *src, float mul, int len); void ff_int32_to_float_fmul_scalar_sse2(float *dst, const int *src, float mul, int len); void ff_float_to_int16_3dnow(int16_t *dst, const float *src, long len); void ff_float_to_int16_sse (int16_t *dst, const float *src, long len); void ff_float_to_int16_sse2 (int16_t *dst, const float *src, long len); void ff_float_to_int16_interleave2_3dnow(int16_t *dst, const float **src, long len); void ff_float_to_int16_interleave2_sse (int16_t *dst, const float **src, long len); void ff_float_to_int16_interleave2_sse2 (int16_t *dst, const float **src, long len); void ff_float_to_int16_interleave6_sse(int16_t *dst, const float **src, int len); void ff_float_to_int16_interleave6_3dnow(int16_t *dst, const float **src, int len); void ff_float_to_int16_interleave6_3dn2(int16_t *dst, const float **src, int len); #define ff_float_to_int16_interleave6_sse2 ff_float_to_int16_interleave6_sse #define FLOAT_TO_INT16_INTERLEAVE(cpu) \ /* gcc pessimizes register allocation if this is in the same function as float_to_int16_interleave_sse2*/\ static av_noinline void float_to_int16_interleave_misc_##cpu(int16_t *dst, const float **src, long len, int channels){\ DECLARE_ALIGNED(16, int16_t, tmp)[len];\ int i,j,c;\ for(c=0; c<channels; c++){\ ff_float_to_int16_##cpu(tmp, src[c], len);\ for(i=0, j=c; i<len; i++, j+=channels)\ dst[j] = tmp[i];\ }\ }\ \ static void float_to_int16_interleave_##cpu(int16_t *dst, const float **src, long len, int channels){\ if(channels==1)\ ff_float_to_int16_##cpu(dst, src[0], len);\ else if(channels==2){\ ff_float_to_int16_interleave2_##cpu(dst, src, len);\ }else if(channels==6){\ ff_float_to_int16_interleave6_##cpu(dst, src, len);\ }else\ float_to_int16_interleave_misc_##cpu(dst, src, len, channels);\ } FLOAT_TO_INT16_INTERLEAVE(3dnow) FLOAT_TO_INT16_INTERLEAVE(sse) FLOAT_TO_INT16_INTERLEAVE(sse2) static void float_to_int16_interleave_3dn2(int16_t *dst, const float **src, long len, int channels){ if(channels==6) ff_float_to_int16_interleave6_3dn2(dst, src, len); else float_to_int16_interleave_3dnow(dst, src, len, channels); } void ff_float_interleave2_mmx(float *dst, const float **src, unsigned int len); void ff_float_interleave2_sse(float *dst, const float **src, unsigned int len); void ff_float_interleave6_mmx(float *dst, const float **src, unsigned int len); void ff_float_interleave6_sse(float *dst, const float **src, unsigned int len); static void float_interleave_mmx(float *dst, const float **src, unsigned int len, int channels) { if (channels == 2) { ff_float_interleave2_mmx(dst, src, len); } else if (channels == 6) ff_float_interleave6_mmx(dst, src, len); else ff_float_interleave_c(dst, src, len, channels); } static void float_interleave_sse(float *dst, const float **src, unsigned int len, int channels) { if (channels == 2) { ff_float_interleave2_sse(dst, src, len); } else if (channels == 6) ff_float_interleave6_sse(dst, src, len); else ff_float_interleave_c(dst, src, len, channels); } #endif void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx) { int mm_flags = av_get_cpu_flags(); #if HAVE_YASM if (mm_flags & AV_CPU_FLAG_MMX) { c->float_interleave = float_interleave_mmx; if (HAVE_AMD3DNOW && mm_flags & AV_CPU_FLAG_3DNOW) { if(!(avctx->flags & CODEC_FLAG_BITEXACT)){ c->float_to_int16 = ff_float_to_int16_3dnow; c->float_to_int16_interleave = float_to_int16_interleave_3dnow; } } if (HAVE_AMD3DNOWEXT && mm_flags & AV_CPU_FLAG_3DNOWEXT) { if(!(avctx->flags & CODEC_FLAG_BITEXACT)){ c->float_to_int16_interleave = float_to_int16_interleave_3dn2; } } if (HAVE_SSE && mm_flags & AV_CPU_FLAG_SSE) { c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse; c->float_to_int16 = ff_float_to_int16_sse; c->float_to_int16_interleave = float_to_int16_interleave_sse; c->float_interleave = float_interleave_sse; } if (HAVE_SSE && mm_flags & AV_CPU_FLAG_SSE2) { c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse2; c->float_to_int16 = ff_float_to_int16_sse2; c->float_to_int16_interleave = float_to_int16_interleave_sse2; } } #endif }