mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
196 lines
7.0 KiB
ArmAsm
196 lines
7.0 KiB
ArmAsm
/*
|
|
* Copyright (c) 2011 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 "asm.S"
|
|
|
|
preserve8
|
|
|
|
.macro prerot dst, rt
|
|
lsr r3, r6, #2 @ n4
|
|
add \rt, r4, r6, lsr #1 @ revtab + n4
|
|
add r9, r3, r3, lsl #1 @ n3
|
|
add r8, r7, r6 @ tcos + n4
|
|
add r3, r2, r6, lsr #1 @ in + n4
|
|
add r9, r2, r9, lsl #1 @ in + n3
|
|
sub r8, r8, #16
|
|
sub r10, r3, #16
|
|
sub r11, r9, #16
|
|
mov r12, #-16
|
|
1:
|
|
vld2.16 {d0,d1}, [r9, :128]!
|
|
vld2.16 {d2,d3}, [r11,:128], r12
|
|
vld2.16 {d4,d5}, [r3, :128]!
|
|
vld2.16 {d6,d7}, [r10,:128], r12
|
|
vld2.16 {d16,d17},[r7, :128]! @ cos, sin
|
|
vld2.16 {d18,d19},[r8, :128], r12
|
|
vrev64.16 q1, q1
|
|
vrev64.16 q3, q3
|
|
vrev64.16 q9, q9
|
|
vneg.s16 d0, d0
|
|
vneg.s16 d2, d2
|
|
vneg.s16 d16, d16
|
|
vneg.s16 d18, d18
|
|
vhsub.s16 d0, d0, d3 @ re
|
|
vhsub.s16 d4, d7, d4 @ im
|
|
vhsub.s16 d6, d6, d5
|
|
vhsub.s16 d2, d2, d1
|
|
vmull.s16 q10, d0, d16
|
|
vmlsl.s16 q10, d4, d17
|
|
vmull.s16 q11, d0, d17
|
|
vmlal.s16 q11, d4, d16
|
|
vmull.s16 q12, d6, d18
|
|
vmlsl.s16 q12, d2, d19
|
|
vmull.s16 q13, d6, d19
|
|
vmlal.s16 q13, d2, d18
|
|
vshrn.s32 d0, q10, #15
|
|
vshrn.s32 d1, q11, #15
|
|
vshrn.s32 d2, q12, #15
|
|
vshrn.s32 d3, q13, #15
|
|
vzip.16 d0, d1
|
|
vzip.16 d2, d3
|
|
ldrh lr, [r4], #2
|
|
ldrh r2, [\rt, #-2]!
|
|
add lr, \dst, lr, lsl #2
|
|
add r2, \dst, r2, lsl #2
|
|
vst1.32 {d0[0]}, [lr,:32]
|
|
vst1.32 {d2[0]}, [r2,:32]
|
|
ldrh lr, [r4], #2
|
|
ldrh r2, [\rt, #-2]!
|
|
add lr, \dst, lr, lsl #2
|
|
add r2, \dst, r2, lsl #2
|
|
vst1.32 {d0[1]}, [lr,:32]
|
|
vst1.32 {d2[1]}, [r2,:32]
|
|
ldrh lr, [r4], #2
|
|
ldrh r2, [\rt, #-2]!
|
|
add lr, \dst, lr, lsl #2
|
|
add r2, \dst, r2, lsl #2
|
|
vst1.32 {d1[0]}, [lr,:32]
|
|
vst1.32 {d3[0]}, [r2,:32]
|
|
ldrh lr, [r4], #2
|
|
ldrh r2, [\rt, #-2]!
|
|
add lr, \dst, lr, lsl #2
|
|
add r2, \dst, r2, lsl #2
|
|
vst1.32 {d1[1]}, [lr,:32]
|
|
vst1.32 {d3[1]}, [r2,:32]
|
|
subs r6, r6, #32
|
|
bgt 1b
|
|
.endm
|
|
|
|
function ff_mdct_fixed_calc_neon, export=1
|
|
push {r1,r4-r11,lr}
|
|
|
|
ldr r4, [r0, #8] @ revtab
|
|
ldr r6, [r0, #16] @ mdct_size; n
|
|
ldr r7, [r0, #24] @ tcos
|
|
|
|
prerot r1, r5
|
|
|
|
mov r4, r0
|
|
bl X(ff_fft_fixed_calc_neon)
|
|
|
|
pop {r5}
|
|
mov r12, #-16
|
|
ldr r6, [r4, #16] @ mdct_size; n
|
|
ldr r7, [r4, #24] @ tcos
|
|
add r5, r5, r6, lsr #1
|
|
add r7, r7, r6, lsr #1
|
|
sub r1, r5, #16
|
|
sub r2, r7, #16
|
|
1:
|
|
vld2.16 {d4,d5}, [r7,:128]!
|
|
vld2.16 {d6,d7}, [r2,:128], r12
|
|
vld2.16 {d0,d1}, [r5,:128]
|
|
vld2.16 {d2,d3}, [r1,:128]
|
|
vrev64.16 q3, q3
|
|
vrev64.16 q1, q1
|
|
vneg.s16 q3, q3
|
|
vneg.s16 q2, q2
|
|
vmull.s16 q11, d2, d6
|
|
vmlal.s16 q11, d3, d7
|
|
vmull.s16 q8, d0, d5
|
|
vmlsl.s16 q8, d1, d4
|
|
vmull.s16 q9, d0, d4
|
|
vmlal.s16 q9, d1, d5
|
|
vmull.s16 q10, d2, d7
|
|
vmlsl.s16 q10, d3, d6
|
|
vshrn.s32 d0, q11, #15
|
|
vshrn.s32 d1, q8, #15
|
|
vshrn.s32 d2, q9, #15
|
|
vshrn.s32 d3, q10, #15
|
|
vrev64.16 q0, q0
|
|
vst2.16 {d2,d3}, [r5,:128]!
|
|
vst2.16 {d0,d1}, [r1,:128], r12
|
|
subs r6, r6, #32
|
|
bgt 1b
|
|
|
|
pop {r4-r11,pc}
|
|
endfunc
|
|
|
|
function ff_mdct_fixed_calcw_neon, export=1
|
|
push {r1,r4-r11,lr}
|
|
|
|
ldrd r4, r5, [r0, #8] @ revtab, tmp_buf
|
|
ldr r6, [r0, #16] @ mdct_size; n
|
|
ldr r7, [r0, #24] @ tcos
|
|
|
|
prerot r5, r1
|
|
|
|
mov r4, r0
|
|
mov r1, r5
|
|
bl X(ff_fft_fixed_calc_neon)
|
|
|
|
pop {r7}
|
|
mov r12, #-16
|
|
ldr r6, [r4, #16] @ mdct_size; n
|
|
ldr r9, [r4, #24] @ tcos
|
|
add r5, r5, r6, lsr #1
|
|
add r7, r7, r6
|
|
add r9, r9, r6, lsr #1
|
|
sub r3, r5, #16
|
|
sub r1, r7, #16
|
|
sub r2, r9, #16
|
|
1:
|
|
vld2.16 {d4,d5}, [r9,:128]!
|
|
vld2.16 {d6,d7}, [r2,:128], r12
|
|
vld2.16 {d0,d1}, [r5,:128]!
|
|
vld2.16 {d2,d3}, [r3,:128], r12
|
|
vrev64.16 q3, q3
|
|
vrev64.16 q1, q1
|
|
vneg.s16 q3, q3
|
|
vneg.s16 q2, q2
|
|
vmull.s16 q8, d2, d6
|
|
vmlal.s16 q8, d3, d7
|
|
vmull.s16 q9, d0, d5
|
|
vmlsl.s16 q9, d1, d4
|
|
vmull.s16 q10, d0, d4
|
|
vmlal.s16 q10, d1, d5
|
|
vmull.s16 q11, d2, d7
|
|
vmlsl.s16 q11, d3, d6
|
|
vrev64.32 q8, q8
|
|
vrev64.32 q9, q9
|
|
vst2.32 {q10,q11},[r7,:128]!
|
|
vst2.32 {d16,d18},[r1,:128], r12
|
|
vst2.32 {d17,d19},[r1,:128], r12
|
|
subs r6, r6, #32
|
|
bgt 1b
|
|
|
|
pop {r4-r11,pc}
|
|
endfunc
|