/* * ARM NEON optimised Format Conversion Utils * Copyright (c) 2008 Mans Rullgard * * This file is part of Libav. * * Libav 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. * * Libav 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 Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config.h" #include "libavutil/arm/asm.S" function ff_int32_to_float_fmul_scalar_neon, export=1 VFP vdup.32 q0, d0[0] VFP len .req r2 NOVFP vdup.32 q0, r2 NOVFP len .req r3 vld1.32 {q1},[r1,:128]! vcvt.f32.s32 q3, q1 vld1.32 {q2},[r1,:128]! vcvt.f32.s32 q8, q2 1: subs len, len, #8 pld [r1, #16] vmul.f32 q9, q3, q0 vmul.f32 q10, q8, q0 beq 2f vld1.32 {q1},[r1,:128]! vcvt.f32.s32 q3, q1 vld1.32 {q2},[r1,:128]! vcvt.f32.s32 q8, q2 vst1.32 {q9}, [r0,:128]! vst1.32 {q10},[r0,:128]! b 1b 2: vst1.32 {q9}, [r0,:128]! vst1.32 {q10},[r0,:128]! bx lr .unreq len endfunc