|
|
|
|
/*
|
|
|
|
|
* 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
|
|
|
|
|
|
|
|
|
|
function ff_vector_fmul_window_neon, export=1
|
|
|
|
|
push {r4,r5,lr}
|
|
|
|
|
ldr lr, [sp, #12]
|
|
|
|
|
sub r2, r2, #8
|
|
|
|
|
sub r5, lr, #2
|
|
|
|
|
add r2, r2, r5, lsl #2
|
|
|
|
|
add r4, r3, r5, lsl #3
|
|
|
|
|
add ip, r0, r5, lsl #3
|
|
|
|
|
mov r5, #-16
|
|
|
|
|
vld1.32 {d0,d1}, [r1,:128]!
|
|
|
|
|
vld1.32 {d2,d3}, [r2,:128], r5
|
|
|
|
|
vld1.32 {d4,d5}, [r3,:128]!
|
|
|
|
|
vld1.32 {d6,d7}, [r4,:128], r5
|
|
|
|
|
1: subs lr, lr, #4
|
|
|
|
|
vmul.f32 d22, d0, d4
|
|
|
|
|
vrev64.32 q3, q3
|
|
|
|
|
vmul.f32 d23, d1, d5
|
|
|
|
|
vrev64.32 q1, q1
|
|
|
|
|
vmul.f32 d20, d0, d7
|
|
|
|
|
vmul.f32 d21, d1, d6
|
|
|
|
|
beq 2f
|
|
|
|
|
vmla.f32 d22, d3, d7
|
|
|
|
|
vld1.32 {d0,d1}, [r1,:128]!
|
|
|
|
|
vmla.f32 d23, d2, d6
|
|
|
|
|
vld1.32 {d18,d19},[r2,:128], r5
|
|
|
|
|
vmls.f32 d20, d3, d4
|
|
|
|
|
vld1.32 {d24,d25},[r3,:128]!
|
|
|
|
|
vmls.f32 d21, d2, d5
|
|
|
|
|
vld1.32 {d6,d7}, [r4,:128], r5
|
|
|
|
|
vmov q1, q9
|
|
|
|
|
vrev64.32 q11, q11
|
|
|
|
|
vmov q2, q12
|
|
|
|
|
vswp d22, d23
|
|
|
|
|
vst1.32 {d20,d21},[r0,:128]!
|
|
|
|
|
vst1.32 {d22,d23},[ip,:128], r5
|
|
|
|
|
b 1b
|
|
|
|
|
2: vmla.f32 d22, d3, d7
|
|
|
|
|
vmla.f32 d23, d2, d6
|
|
|
|
|
vmls.f32 d20, d3, d4
|
|
|
|
|
vmls.f32 d21, d2, d5
|
|
|
|
|
vrev64.32 q11, q11
|
|
|
|
|
vswp d22, d23
|
|
|
|
|
vst1.32 {d20,d21},[r0,:128]!
|
|
|
|
|
vst1.32 {d22,d23},[ip,:128], r5
|
|
|
|
|
pop {r4,r5,pc}
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
function ff_vector_fmul_add_neon, export=1
|
|
|
|
|
ldr r12, [sp]
|
|
|
|
|
vld1.32 {q0-q1}, [r1,:128]!
|
|
|
|
|
vld1.32 {q8-q9}, [r2,:128]!
|
|
|
|
|
vld1.32 {q2-q3}, [r3,:128]!
|
|
|
|
|
vmul.f32 q10, q0, q8
|
|
|
|
|
vmul.f32 q11, q1, q9
|
|
|
|
|
1: vadd.f32 q12, q2, q10
|
|
|
|
|
vadd.f32 q13, q3, q11
|
|
|
|
|
pld [r1, #16]
|
|
|
|
|
pld [r2, #16]
|
|
|
|
|
pld [r3, #16]
|
|
|
|
|
subs r12, r12, #8
|
|
|
|
|
beq 2f
|
|
|
|
|
vld1.32 {q0}, [r1,:128]!
|
|
|
|
|
vld1.32 {q8}, [r2,:128]!
|
|
|
|
|
vmul.f32 q10, q0, q8
|
|
|
|
|
vld1.32 {q1}, [r1,:128]!
|
|
|
|
|
vld1.32 {q9}, [r2,:128]!
|
|
|
|
|
vmul.f32 q11, q1, q9
|
|
|
|
|
vld1.32 {q2-q3}, [r3,:128]!
|
|
|
|
|
vst1.32 {q12-q13},[r0,:128]!
|
|
|
|
|
b 1b
|
|
|
|
|
2: vst1.32 {q12-q13},[r0,:128]!
|
|
|
|
|
bx lr
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
function ff_vector_fmul_reverse_neon, export=1
|
|
|
|
|
add r2, r2, r3, lsl #2
|
|
|
|
|
sub r2, r2, #32
|
|
|
|
|
mov r12, #-32
|
|
|
|
|
vld1.32 {q0-q1}, [r1,:128]!
|
|
|
|
|
vld1.32 {q2-q3}, [r2,:128], r12
|
|
|
|
|
1: pld [r1, #32]
|
|
|
|
|
vrev64.32 q3, q3
|
|
|
|
|
vmul.f32 d16, d0, d7
|
|
|
|
|
vmul.f32 d17, d1, d6
|
|
|
|
|
pld [r2, #-32]
|
|
|
|
|
vrev64.32 q2, q2
|
|
|
|
|
vmul.f32 d18, d2, d5
|
|
|
|
|
vmul.f32 d19, d3, d4
|
|
|
|
|
subs r3, r3, #8
|
|
|
|
|
beq 2f
|
|
|
|
|
vld1.32 {q0-q1}, [r1,:128]!
|
|
|
|
|
vld1.32 {q2-q3}, [r2,:128], r12
|
|
|
|
|
vst1.32 {q8-q9}, [r0,:128]!
|
|
|
|
|
b 1b
|
|
|
|
|
2: vst1.32 {q8-q9}, [r0,:128]!
|
|
|
|
|
bx lr
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
function ff_butterflies_float_neon, export=1
|
|
|
|
|
1: vld1.32 {q0},[r0,:128]
|
|
|
|
|
vld1.32 {q1},[r1,:128]
|
|
|
|
|
vsub.f32 q2, q0, q1
|
|
|
|
|
vadd.f32 q1, q0, q1
|
|
|
|
|
vst1.32 {q2},[r1,:128]!
|
|
|
|
|
vst1.32 {q1},[r0,:128]!
|
|
|
|
|
subs r2, r2, #4
|
|
|
|
|
bgt 1b
|
|
|
|
|
bx lr
|
|
|
|
|
endfunc
|
|
|
|
|
|
|
|
|
|
function ff_scalarproduct_float_neon, export=1
|
|
|
|
|
vmov.f32 q2, #0.0
|
|
|
|
|
1: vld1.32 {q0},[r0,:128]!
|
|
|
|
|
vld1.32 {q1},[r1,:128]!
|
|
|
|
|
vmla.f32 q2, q0, q1
|
|
|
|
|
subs r2, r2, #4
|
|
|
|
|
bgt 1b
|
|
|
|
|
vadd.f32 d0, d4, d5
|
|
|
|
|
vpadd.f32 d0, d0, d0
|
|
|
|
|
NOVFP vmov.32 r0, d0[0]
|
|
|
|
|
bx lr
|
|
|
|
|
endfunc
|
