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| Rev | Author | Line No. | Line |
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| 4349 | Serge | 1 | /* |
| 2 | * MMX optimized MP3 decoding functions |
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| 3 | * Copyright (c) 2010 Vitor Sessak |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include "libavutil/attributes.h" |
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| 23 | #include "libavutil/cpu.h" |
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| 24 | #include "libavutil/internal.h" |
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| 25 | #include "libavutil/x86/asm.h" |
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| 26 | #include "libavutil/x86/cpu.h" |
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| 27 | #include "libavcodec/mpegaudiodsp.h" |
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| 28 | |||
| 29 | #define DECL(CPU)\ |
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| 30 | static void imdct36_blocks_ ## CPU(float *out, float *buf, float *in, int count, int switch_point, int block_type);\ |
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| 31 | void ff_imdct36_float_ ## CPU(float *out, float *buf, float *in, float *win); |
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| 32 | |||
| 33 | DECL(sse) |
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| 34 | DECL(sse2) |
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| 35 | DECL(sse3) |
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| 36 | DECL(ssse3) |
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| 37 | DECL(avx) |
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| 38 | |||
| 39 | void ff_four_imdct36_float_sse(float *out, float *buf, float *in, float *win, |
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| 40 | float *tmpbuf); |
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| 41 | void ff_four_imdct36_float_avx(float *out, float *buf, float *in, float *win, |
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| 42 | float *tmpbuf); |
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| 43 | |||
| 44 | DECLARE_ALIGNED(16, static float, mdct_win_sse)[2][4][4*40]; |
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| 45 | |||
| 46 | #if HAVE_SSE2_INLINE |
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| 47 | |||
| 48 | #define MACS(rt, ra, rb) rt+=(ra)*(rb) |
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| 49 | #define MLSS(rt, ra, rb) rt-=(ra)*(rb) |
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| 50 | |||
| 51 | #define SUM8(op, sum, w, p) \ |
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| 52 | { \ |
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| 53 | op(sum, (w)[0 * 64], (p)[0 * 64]); \ |
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| 54 | op(sum, (w)[1 * 64], (p)[1 * 64]); \ |
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| 55 | op(sum, (w)[2 * 64], (p)[2 * 64]); \ |
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| 56 | op(sum, (w)[3 * 64], (p)[3 * 64]); \ |
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| 57 | op(sum, (w)[4 * 64], (p)[4 * 64]); \ |
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| 58 | op(sum, (w)[5 * 64], (p)[5 * 64]); \ |
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| 59 | op(sum, (w)[6 * 64], (p)[6 * 64]); \ |
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| 60 | op(sum, (w)[7 * 64], (p)[7 * 64]); \ |
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| 61 | } |
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| 62 | |||
| 63 | static void apply_window(const float *buf, const float *win1, |
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| 64 | const float *win2, float *sum1, float *sum2, int len) |
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| 65 | { |
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| 66 | x86_reg count = - 4*len; |
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| 67 | const float *win1a = win1+len; |
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| 68 | const float *win2a = win2+len; |
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| 69 | const float *bufa = buf+len; |
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| 70 | float *sum1a = sum1+len; |
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| 71 | float *sum2a = sum2+len; |
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| 72 | |||
| 73 | |||
| 74 | #define MULT(a, b) \ |
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| 75 | "movaps " #a "(%1,%0), %%xmm1 \n\t" \ |
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| 76 | "movaps " #a "(%3,%0), %%xmm2 \n\t" \ |
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| 77 | "mulps %%xmm2, %%xmm1 \n\t" \ |
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| 78 | "subps %%xmm1, %%xmm0 \n\t" \ |
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| 79 | "mulps " #b "(%2,%0), %%xmm2 \n\t" \ |
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| 80 | "subps %%xmm2, %%xmm4 \n\t" \ |
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| 81 | |||
| 82 | __asm__ volatile( |
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| 83 | "1: \n\t" |
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| 84 | "xorps %%xmm0, %%xmm0 \n\t" |
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| 85 | "xorps %%xmm4, %%xmm4 \n\t" |
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| 86 | |||
| 87 | MULT( 0, 0) |
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| 88 | MULT( 256, 64) |
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| 89 | MULT( 512, 128) |
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| 90 | MULT( 768, 192) |
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| 91 | MULT(1024, 256) |
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| 92 | MULT(1280, 320) |
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| 93 | MULT(1536, 384) |
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| 94 | MULT(1792, 448) |
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| 95 | |||
| 96 | "movaps %%xmm0, (%4,%0) \n\t" |
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| 97 | "movaps %%xmm4, (%5,%0) \n\t" |
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| 98 | "add $16, %0 \n\t" |
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| 99 | "jl 1b \n\t" |
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| 100 | :"+&r"(count) |
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| 101 | :"r"(win1a), "r"(win2a), "r"(bufa), "r"(sum1a), "r"(sum2a) |
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| 102 | ); |
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| 103 | |||
| 104 | #undef MULT |
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| 105 | } |
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| 106 | |||
| 107 | static void apply_window_mp3(float *in, float *win, int *unused, float *out, |
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| 108 | int incr) |
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| 109 | { |
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| 110 | LOCAL_ALIGNED_16(float, suma, [17]); |
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| 111 | LOCAL_ALIGNED_16(float, sumb, [17]); |
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| 112 | LOCAL_ALIGNED_16(float, sumc, [17]); |
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| 113 | LOCAL_ALIGNED_16(float, sumd, [17]); |
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| 114 | |||
| 115 | float sum; |
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| 116 | |||
| 117 | /* copy to avoid wrap */ |
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| 118 | __asm__ volatile( |
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| 119 | "movaps 0(%0), %%xmm0 \n\t" \ |
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| 120 | "movaps 16(%0), %%xmm1 \n\t" \ |
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| 121 | "movaps 32(%0), %%xmm2 \n\t" \ |
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| 122 | "movaps 48(%0), %%xmm3 \n\t" \ |
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| 123 | "movaps %%xmm0, 0(%1) \n\t" \ |
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| 124 | "movaps %%xmm1, 16(%1) \n\t" \ |
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| 125 | "movaps %%xmm2, 32(%1) \n\t" \ |
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| 126 | "movaps %%xmm3, 48(%1) \n\t" \ |
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| 127 | "movaps 64(%0), %%xmm0 \n\t" \ |
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| 128 | "movaps 80(%0), %%xmm1 \n\t" \ |
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| 129 | "movaps 96(%0), %%xmm2 \n\t" \ |
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| 130 | "movaps 112(%0), %%xmm3 \n\t" \ |
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| 131 | "movaps %%xmm0, 64(%1) \n\t" \ |
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| 132 | "movaps %%xmm1, 80(%1) \n\t" \ |
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| 133 | "movaps %%xmm2, 96(%1) \n\t" \ |
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| 134 | "movaps %%xmm3, 112(%1) \n\t" |
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| 135 | ::"r"(in), "r"(in+512) |
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| 136 | :"memory" |
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| 137 | ); |
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| 138 | |||
| 139 | apply_window(in + 16, win , win + 512, suma, sumc, 16); |
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| 140 | apply_window(in + 32, win + 48, win + 640, sumb, sumd, 16); |
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| 141 | |||
| 142 | SUM8(MACS, suma[0], win + 32, in + 48); |
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| 143 | |||
| 144 | sumc[ 0] = 0; |
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| 145 | sumb[16] = 0; |
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| 146 | sumd[16] = 0; |
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| 147 | |||
| 148 | #define SUMS(suma, sumb, sumc, sumd, out1, out2) \ |
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| 149 | "movups " #sumd "(%4), %%xmm0 \n\t" \ |
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| 150 | "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ |
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| 151 | "subps " #suma "(%1), %%xmm0 \n\t" \ |
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| 152 | "movaps %%xmm0," #out1 "(%0) \n\t" \ |
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| 153 | \ |
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| 154 | "movups " #sumc "(%3), %%xmm0 \n\t" \ |
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| 155 | "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ |
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| 156 | "addps " #sumb "(%2), %%xmm0 \n\t" \ |
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| 157 | "movaps %%xmm0," #out2 "(%0) \n\t" |
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| 158 | |||
| 159 | if (incr == 1) { |
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| 160 | __asm__ volatile( |
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| 161 | SUMS( 0, 48, 4, 52, 0, 112) |
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| 162 | SUMS(16, 32, 20, 36, 16, 96) |
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| 163 | SUMS(32, 16, 36, 20, 32, 80) |
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| 164 | SUMS(48, 0, 52, 4, 48, 64) |
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| 165 | |||
| 166 | :"+&r"(out) |
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| 167 | :"r"(&suma[0]), "r"(&sumb[0]), "r"(&sumc[0]), "r"(&sumd[0]) |
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| 168 | :"memory" |
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| 169 | ); |
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| 170 | out += 16*incr; |
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| 171 | } else { |
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| 172 | int j; |
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| 173 | float *out2 = out + 32 * incr; |
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| 174 | out[0 ] = -suma[ 0]; |
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| 175 | out += incr; |
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| 176 | out2 -= incr; |
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| 177 | for(j=1;j<16;j++) { |
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| 178 | *out = -suma[ j] + sumd[16-j]; |
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| 179 | *out2 = sumb[16-j] + sumc[ j]; |
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| 180 | out += incr; |
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| 181 | out2 -= incr; |
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| 182 | } |
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| 183 | } |
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| 184 | |||
| 185 | sum = 0; |
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| 186 | SUM8(MLSS, sum, win + 16 + 32, in + 32); |
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| 187 | *out = sum; |
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| 188 | } |
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| 189 | |||
| 190 | #endif /* HAVE_SSE2_INLINE */ |
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| 191 | |||
| 192 | #if HAVE_YASM |
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| 193 | #define DECL_IMDCT_BLOCKS(CPU1, CPU2) \ |
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| 194 | static void imdct36_blocks_ ## CPU1(float *out, float *buf, float *in, \ |
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| 195 | int count, int switch_point, int block_type) \ |
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| 196 | { \ |
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| 197 | int align_end = count - (count & 3); \ |
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| 198 | int j; \ |
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| 199 | for (j = 0; j < align_end; j+= 4) { \ |
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| 200 | LOCAL_ALIGNED_16(float, tmpbuf, [1024]); \ |
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| 201 | float *win = mdct_win_sse[switch_point && j < 4][block_type]; \ |
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| 202 | /* apply window & overlap with previous buffer */ \ |
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| 203 | \ |
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| 204 | /* select window */ \ |
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| 205 | ff_four_imdct36_float_ ## CPU2(out, buf, in, win, tmpbuf); \ |
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| 206 | in += 4*18; \ |
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| 207 | buf += 4*18; \ |
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| 208 | out += 4; \ |
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| 209 | } \ |
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| 210 | for (; j < count; j++) { \ |
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| 211 | /* apply window & overlap with previous buffer */ \ |
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| 212 | \ |
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| 213 | /* select window */ \ |
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| 214 | int win_idx = (switch_point && j < 2) ? 0 : block_type; \ |
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| 215 | float *win = ff_mdct_win_float[win_idx + (4 & -(j & 1))]; \ |
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| 216 | \ |
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| 217 | ff_imdct36_float_ ## CPU1(out, buf, in, win); \ |
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| 218 | \ |
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| 219 | in += 18; \ |
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| 220 | buf++; \ |
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| 221 | out++; \ |
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| 222 | } \ |
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| 223 | } |
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| 224 | |||
| 225 | #if HAVE_SSE |
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| 226 | DECL_IMDCT_BLOCKS(sse,sse) |
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| 227 | DECL_IMDCT_BLOCKS(sse2,sse) |
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| 228 | DECL_IMDCT_BLOCKS(sse3,sse) |
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| 229 | DECL_IMDCT_BLOCKS(ssse3,sse) |
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| 230 | #endif |
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| 231 | #if HAVE_AVX_EXTERNAL |
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| 232 | DECL_IMDCT_BLOCKS(avx,avx) |
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| 233 | #endif |
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| 234 | #endif /* HAVE_YASM */ |
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| 235 | |||
| 236 | av_cold void ff_mpadsp_init_x86(MPADSPContext *s) |
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| 237 | { |
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| 238 | int cpu_flags = av_get_cpu_flags(); |
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| 239 | |||
| 240 | int i, j; |
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| 241 | for (j = 0; j < 4; j++) { |
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| 242 | for (i = 0; i < 40; i ++) { |
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| 243 | mdct_win_sse[0][j][4*i ] = ff_mdct_win_float[j ][i]; |
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| 244 | mdct_win_sse[0][j][4*i + 1] = ff_mdct_win_float[j + 4][i]; |
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| 245 | mdct_win_sse[0][j][4*i + 2] = ff_mdct_win_float[j ][i]; |
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| 246 | mdct_win_sse[0][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; |
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| 247 | mdct_win_sse[1][j][4*i ] = ff_mdct_win_float[0 ][i]; |
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| 248 | mdct_win_sse[1][j][4*i + 1] = ff_mdct_win_float[4 ][i]; |
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| 249 | mdct_win_sse[1][j][4*i + 2] = ff_mdct_win_float[j ][i]; |
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| 250 | mdct_win_sse[1][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; |
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| 251 | } |
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| 252 | } |
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| 253 | |||
| 254 | #if HAVE_SSE2_INLINE |
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| 255 | if (cpu_flags & AV_CPU_FLAG_SSE2) { |
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| 256 | s->apply_window_float = apply_window_mp3; |
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| 257 | } |
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| 258 | #endif /* HAVE_SSE2_INLINE */ |
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| 259 | |||
| 260 | #if HAVE_YASM |
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| 261 | if (EXTERNAL_SSE(cpu_flags)) { |
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| 262 | s->imdct36_blocks_float = imdct36_blocks_sse; |
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| 263 | } |
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| 264 | if (EXTERNAL_SSE2(cpu_flags)) { |
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| 265 | s->imdct36_blocks_float = imdct36_blocks_sse2; |
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| 266 | } |
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| 267 | if (EXTERNAL_SSE3(cpu_flags)) { |
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| 268 | s->imdct36_blocks_float = imdct36_blocks_sse3; |
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| 269 | } |
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| 270 | if (EXTERNAL_SSSE3(cpu_flags)) { |
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| 271 | s->imdct36_blocks_float = imdct36_blocks_ssse3; |
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| 272 | } |
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| 273 | if (EXTERNAL_AVX(cpu_flags)) { |
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| 274 | s->imdct36_blocks_float = imdct36_blocks_avx; |
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| 275 | } |
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| 276 | #endif /* HAVE_YASM */ |
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| 277 | } |