| 1 | /* |
| 2 | * Format Conversion Utils |
| 3 | * Copyright (c) 2000, 2001 Fabrice Bellard |
| 4 | * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
| 5 | * |
| 6 | * MMX optimization by Nick Kurshev <nickols_k@mail.ru> |
| 7 | * |
| 8 | * This file is part of FFmpeg. |
| 9 | * |
| 10 | * FFmpeg is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU Lesser General Public |
| 12 | * License as published by the Free Software Foundation; either |
| 13 | * version 2.1 of the License, or (at your option) any later version. |
| 14 | * |
| 15 | * FFmpeg is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * Lesser General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU Lesser General Public |
| 21 | * License along with FFmpeg; if not, write to the Free Software |
| 22 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 23 | */ |
| 24 | |
| 25 | #include "libavutil/attributes.h" |
| 26 | #include "libavutil/cpu.h" |
| 27 | #include "libavutil/x86/asm.h" |
| 28 | #include "libavutil/x86/cpu.h" |
| 29 | #include "libavcodec/fmtconvert.h" |
| 30 | |
| 31 | #if HAVE_YASM |
| 32 | |
| 33 | void ff_int32_to_float_fmul_scalar_sse (float *dst, const int32_t *src, float mul, int len); |
| 34 | void ff_int32_to_float_fmul_scalar_sse2(float *dst, const int32_t *src, float mul, int len); |
| 35 | |
| 36 | void ff_float_to_int16_3dnow(int16_t *dst, const float *src, long len); |
| 37 | void ff_float_to_int16_sse (int16_t *dst, const float *src, long len); |
| 38 | void ff_float_to_int16_sse2 (int16_t *dst, const float *src, long len); |
| 39 | |
| 40 | void ff_float_to_int16_step_3dnow(int16_t *dst, const float *src, long len, long step); |
| 41 | void ff_float_to_int16_step_sse (int16_t *dst, const float *src, long len, long step); |
| 42 | void ff_float_to_int16_step_sse2 (int16_t *dst, const float *src, long len, long step); |
| 43 | |
| 44 | void ff_float_to_int16_interleave2_3dnow(int16_t *dst, const float **src, long len); |
| 45 | void ff_float_to_int16_interleave2_sse (int16_t *dst, const float **src, long len); |
| 46 | void ff_float_to_int16_interleave2_sse2 (int16_t *dst, const float **src, long len); |
| 47 | |
| 48 | void ff_float_to_int16_interleave6_sse(int16_t *dst, const float **src, int len); |
| 49 | void ff_float_to_int16_interleave6_3dnow(int16_t *dst, const float **src, int len); |
| 50 | void ff_float_to_int16_interleave6_3dnowext(int16_t *dst, const float **src, int len); |
| 51 | |
| 52 | #define ff_float_to_int16_interleave6_sse2 ff_float_to_int16_interleave6_sse |
| 53 | |
| 54 | #define FLOAT_TO_INT16_INTERLEAVE(cpu) \ |
| 55 | /* gcc pessimizes register allocation if this is in the same function as float_to_int16_interleave_sse2*/\ |
| 56 | static av_noinline void float_to_int16_interleave_misc_##cpu(int16_t *dst, const float **src, long len, int channels){\ |
| 57 | int c;\ |
| 58 | for(c=0; c<channels; c++){\ |
| 59 | ff_float_to_int16_step_##cpu(dst+c, src[c], len, channels);\ |
| 60 | }\ |
| 61 | }\ |
| 62 | \ |
| 63 | static void float_to_int16_interleave_##cpu(int16_t *dst, const float **src, long len, int channels){\ |
| 64 | if(channels==1)\ |
| 65 | ff_float_to_int16_##cpu(dst, src[0], len);\ |
| 66 | else if(channels==2){\ |
| 67 | ff_float_to_int16_interleave2_##cpu(dst, src, len);\ |
| 68 | }else if(channels==6){\ |
| 69 | ff_float_to_int16_interleave6_##cpu(dst, src, len);\ |
| 70 | }else\ |
| 71 | float_to_int16_interleave_misc_##cpu(dst, src, len, channels);\ |
| 72 | } |
| 73 | |
| 74 | FLOAT_TO_INT16_INTERLEAVE(3dnow) |
| 75 | FLOAT_TO_INT16_INTERLEAVE(sse) |
| 76 | FLOAT_TO_INT16_INTERLEAVE(sse2) |
| 77 | |
| 78 | static void float_to_int16_interleave_3dnowext(int16_t *dst, const float **src, |
| 79 | long len, int channels) |
| 80 | { |
| 81 | if(channels==6) |
| 82 | ff_float_to_int16_interleave6_3dnowext(dst, src, len); |
| 83 | else |
| 84 | float_to_int16_interleave_3dnow(dst, src, len, channels); |
| 85 | } |
| 86 | |
| 87 | void ff_float_interleave2_mmx(float *dst, const float **src, unsigned int len); |
| 88 | void ff_float_interleave2_sse(float *dst, const float **src, unsigned int len); |
| 89 | |
| 90 | void ff_float_interleave6_mmx(float *dst, const float **src, unsigned int len); |
| 91 | void ff_float_interleave6_sse(float *dst, const float **src, unsigned int len); |
| 92 | |
| 93 | static void float_interleave_mmx(float *dst, const float **src, |
| 94 | unsigned int len, int channels) |
| 95 | { |
| 96 | if (channels == 2) { |
| 97 | ff_float_interleave2_mmx(dst, src, len); |
| 98 | } else if (channels == 6) |
| 99 | ff_float_interleave6_mmx(dst, src, len); |
| 100 | else |
| 101 | ff_float_interleave_c(dst, src, len, channels); |
| 102 | } |
| 103 | |
| 104 | static void float_interleave_sse(float *dst, const float **src, |
| 105 | unsigned int len, int channels) |
| 106 | { |
| 107 | if (channels == 2) { |
| 108 | ff_float_interleave2_sse(dst, src, len); |
| 109 | } else if (channels == 6) |
| 110 | ff_float_interleave6_sse(dst, src, len); |
| 111 | else |
| 112 | ff_float_interleave_c(dst, src, len, channels); |
| 113 | } |
| 114 | #endif /* HAVE_YASM */ |
| 115 | |
| 116 | av_cold void ff_fmt_convert_init_x86(FmtConvertContext *c, AVCodecContext *avctx) |
| 117 | { |
| 118 | #if HAVE_YASM |
| 119 | int cpu_flags = av_get_cpu_flags(); |
| 120 | |
| 121 | if (EXTERNAL_MMX(cpu_flags)) { |
| 122 | c->float_interleave = float_interleave_mmx; |
| 123 | } |
| 124 | if (EXTERNAL_AMD3DNOW(cpu_flags)) { |
| 125 | if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { |
| 126 | c->float_to_int16 = ff_float_to_int16_3dnow; |
| 127 | c->float_to_int16_interleave = float_to_int16_interleave_3dnow; |
| 128 | } |
| 129 | } |
| 130 | if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) { |
| 131 | if (!(avctx->flags & CODEC_FLAG_BITEXACT)) { |
| 132 | c->float_to_int16_interleave = float_to_int16_interleave_3dnowext; |
| 133 | } |
| 134 | } |
| 135 | if (EXTERNAL_SSE(cpu_flags)) { |
| 136 | c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse; |
| 137 | c->float_to_int16 = ff_float_to_int16_sse; |
| 138 | c->float_to_int16_interleave = float_to_int16_interleave_sse; |
| 139 | c->float_interleave = float_interleave_sse; |
| 140 | } |
| 141 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 142 | c->int32_to_float_fmul_scalar = ff_int32_to_float_fmul_scalar_sse2; |
| 143 | c->float_to_int16 = ff_float_to_int16_sse2; |
| 144 | c->float_to_int16_interleave = float_to_int16_interleave_sse2; |
| 145 | } |
| 146 | #endif /* HAVE_YASM */ |
| 147 | } |