/* * ARM NEON optimised DSP functions * Copyright (c) 2008 Mans Rullgard <mans@mansr.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/arm/asm.S" function ff_vorbis_inverse_coupling_neon, export=1 vmov.i32 q10, #1<<31 subs r2, r2, #4 mov r3, r0 mov r12, r1 beq 3f vld1.32 {d24-d25},[r1,:128]! vld1.32 {d22-d23},[r0,:128]! vcle.s32 q8, q12, #0 vand q9, q11, q10 veor q12, q12, q9 vand q2, q12, q8 vbic q3, q12, q8 vadd.f32 q12, q11, q2 vsub.f32 q11, q11, q3 1: vld1.32 {d2-d3}, [r1,:128]! vld1.32 {d0-d1}, [r0,:128]! vcle.s32 q8, q1, #0 vand q9, q0, q10 veor q1, q1, q9 vst1.32 {d24-d25},[r3, :128]! vst1.32 {d22-d23},[r12,:128]! vand q2, q1, q8 vbic q3, q1, q8 vadd.f32 q1, q0, q2 vsub.f32 q0, q0, q3 subs r2, r2, #8 ble 2f vld1.32 {d24-d25},[r1,:128]! vld1.32 {d22-d23},[r0,:128]! vcle.s32 q8, q12, #0 vand q9, q11, q10 veor q12, q12, q9 vst1.32 {d2-d3}, [r3, :128]! vst1.32 {d0-d1}, [r12,:128]! vand q2, q12, q8 vbic q3, q12, q8 vadd.f32 q12, q11, q2 vsub.f32 q11, q11, q3 b 1b 2: vst1.32 {d2-d3}, [r3, :128]! vst1.32 {d0-d1}, [r12,:128]! it lt bxlt lr 3: vld1.32 {d2-d3}, [r1,:128] vld1.32 {d0-d1}, [r0,:128] vcle.s32 q8, q1, #0 vand q9, q0, q10 veor q1, q1, q9 vand q2, q1, q8 vbic q3, q1, q8 vadd.f32 q1, q0, q2 vsub.f32 q0, q0, q3 vst1.32 {d2-d3}, [r0,:128]! vst1.32 {d0-d1}, [r1,:128]! bx lr endfunc