| /* |
| * 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) |
| { |
| #if HAVE_YASM |
| int mm_flags = av_get_cpu_flags(); |
| |
| 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 |
| } |