diff options
Diffstat (limited to 'media/ffvpx/libavcodec/x86/mpegaudiodsp.c')
| -rw-r--r-- | media/ffvpx/libavcodec/x86/mpegaudiodsp.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/media/ffvpx/libavcodec/x86/mpegaudiodsp.c b/media/ffvpx/libavcodec/x86/mpegaudiodsp.c new file mode 100644 index 0000000000..f46a5c4f3d --- /dev/null +++ b/media/ffvpx/libavcodec/x86/mpegaudiodsp.c @@ -0,0 +1,289 @@ +/* + * SIMD-optimized MP3 decoding functions + * Copyright (c) 2010 Vitor Sessak + * + * 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 + */ + +#include "libavutil/attributes.h" +#include "libavutil/cpu.h" +#include "libavutil/internal.h" +#include "libavutil/x86/asm.h" +#include "libavutil/x86/cpu.h" +#include "libavcodec/mpegaudiodsp.h" + +#define DECL(CPU)\ +static void imdct36_blocks_ ## CPU(float *out, float *buf, float *in, int count, int switch_point, int block_type);\ +void ff_imdct36_float_ ## CPU(float *out, float *buf, float *in, float *win); + +#if HAVE_X86ASM +#if ARCH_X86_32 +DECL(sse) +#endif +DECL(sse2) +DECL(sse3) +DECL(ssse3) +DECL(avx) +#endif /* HAVE_X86ASM */ + +void ff_four_imdct36_float_sse(float *out, float *buf, float *in, float *win, + float *tmpbuf); +void ff_four_imdct36_float_avx(float *out, float *buf, float *in, float *win, + float *tmpbuf); + +DECLARE_ALIGNED(16, static float, mdct_win_sse)[2][4][4*40]; + +#if HAVE_6REGS && HAVE_SSE_INLINE + +#define MACS(rt, ra, rb) rt+=(ra)*(rb) +#define MLSS(rt, ra, rb) rt-=(ra)*(rb) + +#define SUM8(op, sum, w, p) \ +{ \ + op(sum, (w)[0 * 64], (p)[0 * 64]); \ + op(sum, (w)[1 * 64], (p)[1 * 64]); \ + op(sum, (w)[2 * 64], (p)[2 * 64]); \ + op(sum, (w)[3 * 64], (p)[3 * 64]); \ + op(sum, (w)[4 * 64], (p)[4 * 64]); \ + op(sum, (w)[5 * 64], (p)[5 * 64]); \ + op(sum, (w)[6 * 64], (p)[6 * 64]); \ + op(sum, (w)[7 * 64], (p)[7 * 64]); \ +} + +static void apply_window(const float *buf, const float *win1, + const float *win2, float *sum1, float *sum2, int len) +{ + x86_reg count = - 4*len; + const float *win1a = win1+len; + const float *win2a = win2+len; + const float *bufa = buf+len; + float *sum1a = sum1+len; + float *sum2a = sum2+len; + + +#define MULT(a, b) \ + "movaps " #a "(%1,%0), %%xmm1 \n\t" \ + "movaps " #a "(%3,%0), %%xmm2 \n\t" \ + "mulps %%xmm2, %%xmm1 \n\t" \ + "subps %%xmm1, %%xmm0 \n\t" \ + "mulps " #b "(%2,%0), %%xmm2 \n\t" \ + "subps %%xmm2, %%xmm4 \n\t" \ + + __asm__ volatile( + "1: \n\t" + "xorps %%xmm0, %%xmm0 \n\t" + "xorps %%xmm4, %%xmm4 \n\t" + + MULT( 0, 0) + MULT( 256, 64) + MULT( 512, 128) + MULT( 768, 192) + MULT(1024, 256) + MULT(1280, 320) + MULT(1536, 384) + MULT(1792, 448) + + "movaps %%xmm0, (%4,%0) \n\t" + "movaps %%xmm4, (%5,%0) \n\t" + "add $16, %0 \n\t" + "jl 1b \n\t" + :"+&r"(count) + :"r"(win1a), "r"(win2a), "r"(bufa), "r"(sum1a), "r"(sum2a) + ); + +#undef MULT +} + +static void apply_window_mp3(float *in, float *win, int *unused, float *out, + ptrdiff_t incr) +{ + LOCAL_ALIGNED_16(float, suma, [17]); + LOCAL_ALIGNED_16(float, sumb, [17]); + LOCAL_ALIGNED_16(float, sumc, [17]); + LOCAL_ALIGNED_16(float, sumd, [17]); + + float sum; + + /* copy to avoid wrap */ + __asm__ volatile( + "movaps 0(%0), %%xmm0 \n\t" \ + "movaps 16(%0), %%xmm1 \n\t" \ + "movaps 32(%0), %%xmm2 \n\t" \ + "movaps 48(%0), %%xmm3 \n\t" \ + "movaps %%xmm0, 0(%1) \n\t" \ + "movaps %%xmm1, 16(%1) \n\t" \ + "movaps %%xmm2, 32(%1) \n\t" \ + "movaps %%xmm3, 48(%1) \n\t" \ + "movaps 64(%0), %%xmm0 \n\t" \ + "movaps 80(%0), %%xmm1 \n\t" \ + "movaps 96(%0), %%xmm2 \n\t" \ + "movaps 112(%0), %%xmm3 \n\t" \ + "movaps %%xmm0, 64(%1) \n\t" \ + "movaps %%xmm1, 80(%1) \n\t" \ + "movaps %%xmm2, 96(%1) \n\t" \ + "movaps %%xmm3, 112(%1) \n\t" + ::"r"(in), "r"(in+512) + :"memory" + ); + + apply_window(in + 16, win , win + 512, suma, sumc, 16); + apply_window(in + 32, win + 48, win + 640, sumb, sumd, 16); + + SUM8(MACS, suma[0], win + 32, in + 48); + + sumc[ 0] = 0; + sumb[16] = 0; + sumd[16] = 0; + +#define SUMS(suma, sumb, sumc, sumd, out1, out2) \ + "movups " #sumd "(%4), %%xmm0 \n\t" \ + "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ + "subps " #suma "(%1), %%xmm0 \n\t" \ + "movaps %%xmm0," #out1 "(%0) \n\t" \ +\ + "movups " #sumc "(%3), %%xmm0 \n\t" \ + "shufps $0x1b, %%xmm0, %%xmm0 \n\t" \ + "addps " #sumb "(%2), %%xmm0 \n\t" \ + "movaps %%xmm0," #out2 "(%0) \n\t" + + if (incr == 1) { + __asm__ volatile( + SUMS( 0, 48, 4, 52, 0, 112) + SUMS(16, 32, 20, 36, 16, 96) + SUMS(32, 16, 36, 20, 32, 80) + SUMS(48, 0, 52, 4, 48, 64) + + :"+&r"(out) + :"r"(&suma[0]), "r"(&sumb[0]), "r"(&sumc[0]), "r"(&sumd[0]) + :"memory" + ); + out += 16*incr; + } else { + int j; + float *out2 = out + 32 * incr; + out[0 ] = -suma[ 0]; + out += incr; + out2 -= incr; + for(j=1;j<16;j++) { + *out = -suma[ j] + sumd[16-j]; + *out2 = sumb[16-j] + sumc[ j]; + out += incr; + out2 -= incr; + } + } + + sum = 0; + SUM8(MLSS, sum, win + 16 + 32, in + 32); + *out = sum; +} + +#endif /* HAVE_6REGS && HAVE_SSE_INLINE */ + +#if HAVE_X86ASM +#define DECL_IMDCT_BLOCKS(CPU1, CPU2) \ +static void imdct36_blocks_ ## CPU1(float *out, float *buf, float *in, \ + int count, int switch_point, int block_type) \ +{ \ + int align_end = count - (count & 3); \ + int j; \ + for (j = 0; j < align_end; j+= 4) { \ + LOCAL_ALIGNED_16(float, tmpbuf, [1024]); \ + float *win = mdct_win_sse[switch_point && j < 4][block_type]; \ + /* apply window & overlap with previous buffer */ \ + \ + /* select window */ \ + ff_four_imdct36_float_ ## CPU2(out, buf, in, win, tmpbuf); \ + in += 4*18; \ + buf += 4*18; \ + out += 4; \ + } \ + for (; j < count; j++) { \ + /* apply window & overlap with previous buffer */ \ + \ + /* select window */ \ + int win_idx = (switch_point && j < 2) ? 0 : block_type; \ + float *win = ff_mdct_win_float[win_idx + (4 & -(j & 1))]; \ + \ + ff_imdct36_float_ ## CPU1(out, buf, in, win); \ + \ + in += 18; \ + buf++; \ + out++; \ + } \ +} + +#if HAVE_SSE +#if ARCH_X86_32 +DECL_IMDCT_BLOCKS(sse,sse) +#endif +DECL_IMDCT_BLOCKS(sse2,sse) +DECL_IMDCT_BLOCKS(sse3,sse) +DECL_IMDCT_BLOCKS(ssse3,sse) +#endif +#if HAVE_AVX_EXTERNAL +DECL_IMDCT_BLOCKS(avx,avx) +#endif +#endif /* HAVE_X86ASM */ + +av_cold void ff_mpadsp_init_x86(MPADSPContext *s) +{ + av_unused int cpu_flags = av_get_cpu_flags(); + + int i, j; + for (j = 0; j < 4; j++) { + for (i = 0; i < 40; i ++) { + mdct_win_sse[0][j][4*i ] = ff_mdct_win_float[j ][i]; + mdct_win_sse[0][j][4*i + 1] = ff_mdct_win_float[j + 4][i]; + mdct_win_sse[0][j][4*i + 2] = ff_mdct_win_float[j ][i]; + mdct_win_sse[0][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; + mdct_win_sse[1][j][4*i ] = ff_mdct_win_float[0 ][i]; + mdct_win_sse[1][j][4*i + 1] = ff_mdct_win_float[4 ][i]; + mdct_win_sse[1][j][4*i + 2] = ff_mdct_win_float[j ][i]; + mdct_win_sse[1][j][4*i + 3] = ff_mdct_win_float[j + 4][i]; + } + } + +#if HAVE_6REGS && HAVE_SSE_INLINE + if (INLINE_SSE(cpu_flags)) { + s->apply_window_float = apply_window_mp3; + } +#endif /* HAVE_SSE_INLINE */ + +#if HAVE_X86ASM +#if HAVE_SSE +#if ARCH_X86_32 + if (EXTERNAL_SSE(cpu_flags)) { + s->imdct36_blocks_float = imdct36_blocks_sse; + } +#endif + if (EXTERNAL_SSE2(cpu_flags)) { + s->imdct36_blocks_float = imdct36_blocks_sse2; + } + if (EXTERNAL_SSE3(cpu_flags)) { + s->imdct36_blocks_float = imdct36_blocks_sse3; + } + if (EXTERNAL_SSSE3(cpu_flags)) { + s->imdct36_blocks_float = imdct36_blocks_ssse3; + } +#endif +#if HAVE_AVX_EXTERNAL + if (EXTERNAL_AVX(cpu_flags)) { + s->imdct36_blocks_float = imdct36_blocks_avx; + } +#endif +#endif /* HAVE_X86ASM */ +} |