| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * SIMD-optimized MP3 decoding functions | ||
| 3 | * Copyright (c) 2010 Vitor Sessak | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include <stddef.h> | ||
| 23 | |||
| 24 | #include "config.h" | ||
| 25 | #include "libavutil/attributes.h" | ||
| 26 | #include "libavutil/cpu.h" | ||
| 27 | #include "libavutil/mem_internal.h" | ||
| 28 | #include "libavutil/x86/asm.h" | ||
| 29 | #include "libavutil/x86/cpu.h" | ||
| 30 | #include "libavcodec/mpegaudiodsp.h" | ||
| 31 | |||
| 32 | #define DECL(CPU)\ | ||
| 33 | static void imdct36_blocks_ ## CPU(float *out, float *buf, float *in, int count, int switch_point, int block_type);\ | ||
| 34 | void ff_imdct36_float_ ## CPU(float *out, float *buf, float *in, float *win); | ||
| 35 | |||
| 36 | #if HAVE_X86ASM | ||
| 37 | DECL(sse2) | ||
| 38 | DECL(sse3) | ||
| 39 | DECL(ssse3) | ||
| 40 | DECL(avx) | ||
| 41 | #endif /* HAVE_X86ASM */ | ||
| 42 | |||
| 43 | void ff_four_imdct36_float_sse(float *out, float *buf, float *in, float *win, | ||
| 44 | float *tmpbuf); | ||
| 45 | void ff_four_imdct36_float_avx(float *out, float *buf, float *in, float *win, | ||
| 46 | float *tmpbuf); | ||
| 47 | |||
| 48 | void ff_dct32_float_sse2(float *out, const float *in); | ||
| 49 | void ff_dct32_float_avx (float *out, const float *in); | ||
| 50 | |||
| 51 | DECLARE_ALIGNED(16, static float, mdct_win_sse)[2][4][4*40]; | ||
| 52 | |||
| 53 | #if HAVE_X86_6REGS && HAVE_SSE_INLINE | ||
| 54 | |||
| 55 | #define MACS(rt, ra, rb) rt+=(ra)*(rb) | ||
| 56 | #define MLSS(rt, ra, rb) rt-=(ra)*(rb) | ||
| 57 | |||
| 58 | #define SUM8(op, sum, w, p) \ | ||
| 59 | { \ | ||
| 60 | op(sum, (w)[0 * 64], (p)[0 * 64]); \ | ||
| 61 | op(sum, (w)[1 * 64], (p)[1 * 64]); \ | ||
| 62 | op(sum, (w)[2 * 64], (p)[2 * 64]); \ | ||
| 63 | op(sum, (w)[3 * 64], (p)[3 * 64]); \ | ||
| 64 | op(sum, (w)[4 * 64], (p)[4 * 64]); \ | ||
| 65 | op(sum, (w)[5 * 64], (p)[5 * 64]); \ | ||
| 66 | op(sum, (w)[6 * 64], (p)[6 * 64]); \ | ||
| 67 | op(sum, (w)[7 * 64], (p)[7 * 64]); \ | ||
| 68 | } | ||
| 69 | |||
| 70 | 23076 | static void apply_window(const float *buf, const float *win1, | |
| 71 | const float *win2, float *sum1, float *sum2, int len) | ||
| 72 | { | ||
| 73 | 23076 | x86_reg count = - 4*len; | |
| 74 | 23076 | const float *win1a = win1+len; | |
| 75 | 23076 | const float *win2a = win2+len; | |
| 76 | 23076 | const float *bufa = buf+len; | |
| 77 | 23076 | float *sum1a = sum1+len; | |
| 78 | 23076 | float *sum2a = sum2+len; | |
| 79 | |||
| 80 | |||
| 81 | #define MULT(a, b) \ | ||
| 82 | "movaps " #a "(%1,%0), %%xmm1 \n\t" \ | ||
| 83 | "movaps " #a "(%3,%0), %%xmm2 \n\t" \ | ||
| 84 | "mulps %%xmm2, %%xmm1 \n\t" \ | ||
| 85 | "subps %%xmm1, %%xmm0 \n\t" \ | ||
| 86 | "mulps " #b "(%2,%0), %%xmm2 \n\t" \ | ||
| 87 | "subps %%xmm2, %%xmm4 \n\t" \ | ||
| 88 | |||
| 89 | 23076 | __asm__ volatile( | |
| 90 | "1: \n\t" | ||
| 91 | "xorps %%xmm0, %%xmm0 \n\t" | ||
| 92 | "xorps %%xmm4, %%xmm4 \n\t" | ||
| 93 | |||
| 94 | MULT( 0, 0) | ||
| 95 | MULT( 256, 64) | ||
| 96 | MULT( 512, 128) | ||
| 97 | MULT( 768, 192) | ||
| 98 | MULT(1024, 256) | ||
| 99 | MULT(1280, 320) | ||
| 100 | MULT(1536, 384) | ||
| 101 | MULT(1792, 448) | ||
| 102 | |||
| 103 | "movaps %%xmm0, (%4,%0) \n\t" | ||
| 104 | "movaps %%xmm4, (%5,%0) \n\t" | ||
| 105 | "add $16, %0 \n\t" | ||
| 106 | "jl 1b \n\t" | ||
| 107 | :"+&r"(count) | ||
| 108 | :"r"(win1a), "r"(win2a), "r"(bufa), "r"(sum1a), "r"(sum2a) | ||
| 109 | ); | ||
| 110 | |||
| 111 | #undef MULT | ||
| 112 | 23076 | } | |
| 113 | |||
| 114 | 11538 | static void apply_window_mp3(float *in, float *win, int *unused, float *out, | |
| 115 | ptrdiff_t incr) | ||
| 116 | { | ||
| 117 | 11538 | LOCAL_ALIGNED_16(float, suma, [17]); | |
| 118 | 11538 | LOCAL_ALIGNED_16(float, sumb, [17]); | |
| 119 | 11538 | LOCAL_ALIGNED_16(float, sumc, [17]); | |
| 120 | 11538 | LOCAL_ALIGNED_16(float, sumd, [17]); | |
| 121 | |||
| 122 | float sum; | ||
| 123 | |||
| 124 | /* copy to avoid wrap */ | ||
| 125 | 11538 | __asm__ volatile( | |
| 126 | "movaps 0(%0), %%xmm0 \n\t" \ | ||
| 127 | "movaps 16(%0), %%xmm1 \n\t" \ | ||
| 128 | "movaps 32(%0), %%xmm2 \n\t" \ | ||
| 129 | "movaps 48(%0), %%xmm3 \n\t" \ | ||
| 130 | "movaps %%xmm0, 0(%1) \n\t" \ | ||
| 131 | "movaps %%xmm1, 16(%1) \n\t" \ | ||
| 132 | "movaps %%xmm2, 32(%1) \n\t" \ | ||
| 133 | "movaps %%xmm3, 48(%1) \n\t" \ | ||
| 134 | "movaps 64(%0), %%xmm0 \n\t" \ | ||
| 135 | "movaps 80(%0), %%xmm1 \n\t" \ | ||
| 136 | "movaps 96(%0), %%xmm2 \n\t" \ | ||
| 137 | "movaps 112(%0), %%xmm3 \n\t" \ | ||
| 138 | "movaps %%xmm0, 64(%1) \n\t" \ | ||
| 139 | "movaps %%xmm1, 80(%1) \n\t" \ | ||
| 140 | "movaps %%xmm2, 96(%1) \n\t" \ | ||
| 141 | "movaps %%xmm3, 112(%1) \n\t" | ||
| 142 | 11538 | ::"r"(in), "r"(in+512) | |
| 143 | :"memory" | ||
| 144 | ); | ||
| 145 | |||
| 146 | 11538 | apply_window(in + 16, win , win + 512, suma, sumc, 16); | |
| 147 | 11538 | apply_window(in + 32, win + 48, win + 640, sumb, sumd, 16); | |
| 148 | |||
| 149 | 11538 | SUM8(MACS, suma[0], win + 32, in + 48); | |
| 150 | |||
| 151 | 11538 | sumc[ 0] = 0; | |
| 152 | 11538 | sumb[16] = 0; | |
| 153 | 11538 | sumd[16] = 0; | |
| 154 | |||
| 155 | #define SUMS(suma, sumb, sumc, sumd, out1, out2) \ | ||
| 156 | "movups " #sumd "(%4), %%xmm0 \n\t" \ | ||
| 157 | "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ | ||
| 158 | "subps " #suma "(%1), %%xmm0 \n\t" \ | ||
| 159 | "movaps %%xmm0," #out1 "(%0) \n\t" \ | ||
| 160 | \ | ||
| 161 | "movups " #sumc "(%3), %%xmm0 \n\t" \ | ||
| 162 | "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ | ||
| 163 | "addps " #sumb "(%2), %%xmm0 \n\t" \ | ||
| 164 | "movaps %%xmm0," #out2 "(%0) \n\t" | ||
| 165 | |||
| 166 |
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11538 | if (incr == 1) { |
| 167 | 11538 | __asm__ volatile( | |
| 168 | SUMS( 0, 48, 4, 52, 0, 112) | ||
| 169 | SUMS(16, 32, 20, 36, 16, 96) | ||
| 170 | SUMS(32, 16, 36, 20, 32, 80) | ||
| 171 | SUMS(48, 0, 52, 4, 48, 64) | ||
| 172 | |||
| 173 | :"+&r"(out) | ||
| 174 | :"r"(&suma[0]), "r"(&sumb[0]), "r"(&sumc[0]), "r"(&sumd[0]) | ||
| 175 | :"memory" | ||
| 176 | ); | ||
| 177 | 11538 | out += 16*incr; | |
| 178 | } else { | ||
| 179 | int j; | ||
| 180 | ✗ | float *out2 = out + 32 * incr; | |
| 181 | ✗ | out[0 ] = -suma[ 0]; | |
| 182 | ✗ | out += incr; | |
| 183 | ✗ | out2 -= incr; | |
| 184 | ✗ | for(j=1;j<16;j++) { | |
| 185 | ✗ | *out = -suma[ j] + sumd[16-j]; | |
| 186 | ✗ | *out2 = sumb[16-j] + sumc[ j]; | |
| 187 | ✗ | out += incr; | |
| 188 | ✗ | out2 -= incr; | |
| 189 | } | ||
| 190 | } | ||
| 191 | |||
| 192 | 11538 | sum = 0; | |
| 193 | 11538 | SUM8(MLSS, sum, win + 16 + 32, in + 32); | |
| 194 | 11538 | *out = sum; | |
| 195 | 11538 | } | |
| 196 | |||
| 197 | #endif /* HAVE_X86_6REGS && HAVE_SSE_INLINE */ | ||
| 198 | |||
| 199 | #if HAVE_X86ASM | ||
| 200 | #define DECL_IMDCT_BLOCKS(CPU1, CPU2) \ | ||
| 201 | static void imdct36_blocks_ ## CPU1(float *out, float *buf, float *in, \ | ||
| 202 | int count, int switch_point, int block_type) \ | ||
| 203 | { \ | ||
| 204 | int align_end = count - (count & 3); \ | ||
| 205 | int j; \ | ||
| 206 | for (j = 0; j < align_end; j+= 4) { \ | ||
| 207 | LOCAL_ALIGNED_16(float, tmpbuf, [1024]); \ | ||
| 208 | float *win = mdct_win_sse[switch_point && j < 4][block_type]; \ | ||
| 209 | /* apply window & overlap with previous buffer */ \ | ||
| 210 | \ | ||
| 211 | /* select window */ \ | ||
| 212 | ff_four_imdct36_float_ ## CPU2(out, buf, in, win, tmpbuf); \ | ||
| 213 | in += 4*18; \ | ||
| 214 | buf += 4*18; \ | ||
| 215 | out += 4; \ | ||
| 216 | } \ | ||
| 217 | for (; j < count; j++) { \ | ||
| 218 | /* apply window & overlap with previous buffer */ \ | ||
| 219 | \ | ||
| 220 | /* select window */ \ | ||
| 221 | int win_idx = (switch_point && j < 2) ? 0 : block_type; \ | ||
| 222 | float *win = ff_mdct_win_float[win_idx + (4 & -(j & 1))]; \ | ||
| 223 | \ | ||
| 224 | ff_imdct36_float_ ## CPU1(out, buf, in, win); \ | ||
| 225 | \ | ||
| 226 | in += 18; \ | ||
| 227 | buf++; \ | ||
| 228 | out++; \ | ||
| 229 | } \ | ||
| 230 | } | ||
| 231 | |||
| 232 | #if HAVE_SSE | ||
| 233 | ✗ | DECL_IMDCT_BLOCKS(sse2,sse) | |
| 234 | ✗ | DECL_IMDCT_BLOCKS(sse3,sse) | |
| 235 | ✗ | DECL_IMDCT_BLOCKS(ssse3,sse) | |
| 236 | #endif | ||
| 237 | #if HAVE_AVX_EXTERNAL | ||
| 238 |
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3619 | DECL_IMDCT_BLOCKS(avx,avx) |
| 239 | #endif | ||
| 240 | #endif /* HAVE_X86ASM */ | ||
| 241 | |||
| 242 | 154 | av_cold void ff_mpadsp_init_x86_tabs(void) | |
| 243 | { | ||
| 244 | int i, j; | ||
| 245 |
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770 | for (j = 0; j < 4; j++) { |
| 246 |
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25256 | for (i = 0; i < 40; i ++) { |
| 247 | 24640 | mdct_win_sse[0][j][4*i ] = ff_mdct_win_float[j ][i]; | |
| 248 | 24640 | mdct_win_sse[0][j][4*i + 1] = ff_mdct_win_float[j + 4][i]; | |
| 249 | 24640 | mdct_win_sse[0][j][4*i + 2] = ff_mdct_win_float[j ][i]; | |
| 250 | 24640 | mdct_win_sse[0][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; | |
| 251 | 24640 | mdct_win_sse[1][j][4*i ] = ff_mdct_win_float[0 ][i]; | |
| 252 | 24640 | mdct_win_sse[1][j][4*i + 1] = ff_mdct_win_float[4 ][i]; | |
| 253 | 24640 | mdct_win_sse[1][j][4*i + 2] = ff_mdct_win_float[j ][i]; | |
| 254 | 24640 | mdct_win_sse[1][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; | |
| 255 | } | ||
| 256 | } | ||
| 257 | 154 | } | |
| 258 | |||
| 259 | 344 | av_cold void ff_mpadsp_init_x86(MPADSPContext *s) | |
| 260 | { | ||
| 261 | 344 | av_unused int cpu_flags = av_get_cpu_flags(); | |
| 262 | |||
| 263 | #if HAVE_X86_6REGS && HAVE_SSE_INLINE | ||
| 264 |
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344 | if (INLINE_SSE(cpu_flags)) { |
| 265 | 75 | s->apply_window_float = apply_window_mp3; | |
| 266 | } | ||
| 267 | #endif /* HAVE_SSE_INLINE */ | ||
| 268 | |||
| 269 | #if HAVE_X86ASM | ||
| 270 | #if HAVE_SSE | ||
| 271 |
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344 | if (EXTERNAL_SSE2(cpu_flags)) { |
| 272 | 75 | s->imdct36_blocks_float = imdct36_blocks_sse2; | |
| 273 | 75 | s->dct32_float = ff_dct32_float_sse2; | |
| 274 | } | ||
| 275 |
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344 | if (EXTERNAL_SSE3(cpu_flags)) { |
| 276 | 75 | s->imdct36_blocks_float = imdct36_blocks_sse3; | |
| 277 | } | ||
| 278 |
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344 | if (EXTERNAL_SSSE3(cpu_flags)) { |
| 279 | 75 | s->imdct36_blocks_float = imdct36_blocks_ssse3; | |
| 280 | } | ||
| 281 | #endif | ||
| 282 | #if HAVE_AVX_EXTERNAL | ||
| 283 |
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344 | if (EXTERNAL_AVX(cpu_flags)) { |
| 284 | 75 | s->imdct36_blocks_float = imdct36_blocks_avx; | |
| 285 | } | ||
| 286 |
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344 | if (EXTERNAL_AVX_FAST(cpu_flags)) |
| 287 | 75 | s->dct32_float = ff_dct32_float_avx; | |
| 288 | #endif | ||
| 289 | #endif /* HAVE_X86ASM */ | ||
| 290 | 344 | } | |
| 291 |