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/*
* ARM NEON optimised Float DSP functions
* Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
*
* 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 "asm.S"
function ff_vector_fmul_neon, export=1
subs r3, r3, #8
vld1.32 {d0-d3}, [r1,:128]!
vld1.32 {d4-d7}, [r2,:128]!
vmul.f32 q8, q0, q2
vmul.f32 q9, q1, q3
beq 3f
bics ip, r3, #15
beq 2f
1: subs ip, ip, #16
vld1.32 {d0-d1}, [r1,:128]!
vld1.32 {d4-d5}, [r2,:128]!
vmul.f32 q10, q0, q2
vld1.32 {d2-d3}, [r1,:128]!
vld1.32 {d6-d7}, [r2,:128]!
vmul.f32 q11, q1, q3
vst1.32 {d16-d19},[r0,:128]!
vld1.32 {d0-d1}, [r1,:128]!
vld1.32 {d4-d5}, [r2,:128]!
vmul.f32 q8, q0, q2
vld1.32 {d2-d3}, [r1,:128]!
vld1.32 {d6-d7}, [r2,:128]!
vmul.f32 q9, q1, q3
vst1.32 {d20-d23},[r0,:128]!
bne 1b
ands r3, r3, #15
beq 3f
2: vld1.32 {d0-d1}, [r1,:128]!
vld1.32 {d4-d5}, [r2,:128]!
vst1.32 {d16-d17},[r0,:128]!
vmul.f32 q8, q0, q2
vld1.32 {d2-d3}, [r1,:128]!
vld1.32 {d6-d7}, [r2,:128]!
vst1.32 {d18-d19},[r0,:128]!
vmul.f32 q9, q1, q3
3: vst1.32 {d16-d19},[r0,:128]!
bx lr
endfunc
function ff_vector_fmac_scalar_neon, export=1
VFP len .req r2
VFP acc .req r3
NOVFP len .req r3
NOVFP acc .req r2
VFP vdup.32 q15, d0[0]
NOVFP vdup.32 q15, r2
bics r12, len, #15
mov acc, r0
beq 3f
vld1.32 {q0}, [r1,:128]!
vld1.32 {q8}, [acc,:128]!
vld1.32 {q1}, [r1,:128]!
vld1.32 {q9}, [acc,:128]!
1: vmla.f32 q8, q0, q15
vld1.32 {q2}, [r1,:128]!
vld1.32 {q10}, [acc,:128]!
vmla.f32 q9, q1, q15
vld1.32 {q3}, [r1,:128]!
vld1.32 {q11}, [acc,:128]!
vmla.f32 q10, q2, q15
vst1.32 {q8}, [r0,:128]!
vmla.f32 q11, q3, q15
vst1.32 {q9}, [r0,:128]!
subs r12, r12, #16
beq 2f
vld1.32 {q0}, [r1,:128]!
vld1.32 {q8}, [acc,:128]!
vst1.32 {q10}, [r0,:128]!
vld1.32 {q1}, [r1,:128]!
vld1.32 {q9}, [acc,:128]!
vst1.32 {q11}, [r0,:128]!
b 1b
2: vst1.32 {q10}, [r0,:128]!
vst1.32 {q11}, [r0,:128]!
ands len, len, #15
it eq
bxeq lr
3: vld1.32 {q0}, [r1,:128]!
vld1.32 {q8}, [acc,:128]!
vmla.f32 q8, q0, q15
vst1.32 {q8}, [r0,:128]!
subs len, len, #4
bgt 3b
bx lr
.unreq len
endfunc
function ff_vector_fmul_scalar_neon, export=1
VFP len .req r2
NOVFP len .req r3
VFP vdup.32 q8, d0[0]
NOVFP vdup.32 q8, r2
bics r12, len, #15
beq 3f
vld1.32 {q0},[r1,:128]!
vld1.32 {q1},[r1,:128]!
1: vmul.f32 q0, q0, q8
vld1.32 {q2},[r1,:128]!
vmul.f32 q1, q1, q8
vld1.32 {q3},[r1,:128]!
vmul.f32 q2, q2, q8
vst1.32 {q0},[r0,:128]!
vmul.f32 q3, q3, q8
vst1.32 {q1},[r0,:128]!
subs r12, r12, #16
beq 2f
vld1.32 {q0},[r1,:128]!
vst1.32 {q2},[r0,:128]!
vld1.32 {q1},[r1,:128]!
vst1.32 {q3},[r0,:128]!
b 1b
2: vst1.32 {q2},[r0,:128]!
vst1.32 {q3},[r0,:128]!
ands len, len, #15
it eq
bxeq lr
3: vld1.32 {q0},[r1,:128]!
vmul.f32 q0, q0, q8
vst1.32 {q0},[r0,:128]!
subs len, len, #4
bgt 3b
bx lr
.unreq len
endfunc
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