| ;****************************************************************************** |
| ;* SIMD optimized AAC encoder DSP functions |
| ;* |
| ;* Copyright (C) 2016 Rostislav Pehlivanov <atomnuker@gmail.com> |
| ;* |
| ;* 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/x86/x86util.asm" |
| |
| SECTION_RODATA |
| |
| float_abs_mask: times 4 dd 0x7fffffff |
| |
| SECTION .text |
| |
| ;******************************************************************* |
| ;void ff_abs_pow34(float *out, const float *in, const int size); |
| ;******************************************************************* |
| INIT_XMM sse |
| cglobal abs_pow34, 3, 3, 3, out, in, size |
| mova m2, [float_abs_mask] |
| shl sizeq, 2 |
| add inq, sizeq |
| add outq, sizeq |
| neg sizeq |
| .loop: |
| andps m0, m2, [inq+sizeq] |
| sqrtps m1, m0 |
| mulps m0, m1 |
| sqrtps m0, m0 |
| mova [outq+sizeq], m0 |
| add sizeq, mmsize |
| jl .loop |
| RET |
| |
| ;******************************************************************* |
| ;void ff_aac_quantize_bands(int *out, const float *in, const float *scaled, |
| ; int size, int is_signed, int maxval, const float Q34, |
| ; const float rounding) |
| ;******************************************************************* |
| INIT_XMM sse2 |
| cglobal aac_quantize_bands, 5, 5, 6, out, in, scaled, size, is_signed, maxval, Q34, rounding |
| %if UNIX64 == 0 |
| movss m0, Q34m |
| movss m1, roundingm |
| cvtsi2ss m3, dword maxvalm |
| %else |
| cvtsi2ss m3, maxvald |
| %endif |
| shufps m0, m0, 0 |
| shufps m1, m1, 0 |
| shufps m3, m3, 0 |
| shl is_signedd, 31 |
| movd m4, is_signedd |
| shufps m4, m4, 0 |
| shl sized, 2 |
| add inq, sizeq |
| add outq, sizeq |
| add scaledq, sizeq |
| neg sizeq |
| .loop: |
| mulps m2, m0, [scaledq+sizeq] |
| addps m2, m1 |
| minps m2, m3 |
| andps m5, m4, [inq+sizeq] |
| orps m2, m5 |
| cvttps2dq m2, m2 |
| mova [outq+sizeq], m2 |
| add sizeq, mmsize |
| jl .loop |
| RET |