104 lines
3.6 KiB
ArmAsm
104 lines
3.6 KiB
ArmAsm
/*
|
|
* Copyright (c) 2010 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 "asm.S"
|
|
#include "asm-offsets.h"
|
|
|
|
function ff_dct_unquantize_h263_inter_neon, export=1
|
|
add r12, r0, #BLOCK_LAST_INDEX
|
|
ldr r12, [r12, r2, lsl #2]
|
|
add r0, r0, #INTER_SCANTAB_RASTER_END
|
|
ldrb r12, [r0, r12]
|
|
sub r2, r3, #1
|
|
lsl r0, r3, #1
|
|
orr r2, r2, #1
|
|
add r3, r12, #1
|
|
endfunc
|
|
|
|
function ff_dct_unquantize_h263_neon, export=1
|
|
vdup.16 q15, r0 @ qmul
|
|
vdup.16 q14, r2 @ qadd
|
|
vneg.s16 q13, q14
|
|
cmp r3, #4
|
|
mov r0, r1
|
|
ble 2f
|
|
1:
|
|
vld1.16 {q0}, [r0,:128]!
|
|
vclt.s16 q3, q0, #0
|
|
vld1.16 {q8}, [r0,:128]!
|
|
vceq.s16 q1, q0, #0
|
|
vmul.s16 q2, q0, q15
|
|
vclt.s16 q11, q8, #0
|
|
vmul.s16 q10, q8, q15
|
|
vbsl q3, q13, q14
|
|
vbsl q11, q13, q14
|
|
vadd.s16 q2, q2, q3
|
|
vceq.s16 q9, q8, #0
|
|
vadd.s16 q10, q10, q11
|
|
vbif q0, q2, q1
|
|
vbif q8, q10, q9
|
|
subs r3, r3, #16
|
|
vst1.16 {q0}, [r1,:128]!
|
|
vst1.16 {q8}, [r1,:128]!
|
|
bxle lr
|
|
cmp r3, #8
|
|
bgt 1b
|
|
2:
|
|
vld1.16 {d0}, [r0,:64]
|
|
vclt.s16 d3, d0, #0
|
|
vceq.s16 d1, d0, #0
|
|
vmul.s16 d2, d0, d30
|
|
vbsl d3, d26, d28
|
|
vadd.s16 d2, d2, d3
|
|
vbif d0, d2, d1
|
|
vst1.16 {d0}, [r1,:64]
|
|
bx lr
|
|
endfunc
|
|
|
|
function ff_dct_unquantize_h263_intra_neon, export=1
|
|
push {r4-r6,lr}
|
|
add r12, r0, #BLOCK_LAST_INDEX
|
|
ldr r6, [r0, #AC_PRED]
|
|
add lr, r0, #INTER_SCANTAB_RASTER_END
|
|
cmp r6, #0
|
|
movne r12, #63
|
|
bne 1f
|
|
ldr r12, [r12, r2, lsl #2]
|
|
ldrb r12, [lr, r12]
|
|
1: ldr r5, [r0, #H263_AIC]
|
|
ldrsh r4, [r1]
|
|
cmp r5, #0
|
|
mov r5, r1
|
|
movne r2, #0
|
|
bne 2f
|
|
cmp r2, #4
|
|
addge r0, r0, #4
|
|
sub r2, r3, #1
|
|
ldr r6, [r0, #Y_DC_SCALE]
|
|
orr r2, r2, #1
|
|
smulbb r4, r4, r6
|
|
2: lsl r0, r3, #1
|
|
add r3, r12, #1
|
|
bl ff_dct_unquantize_h263_neon
|
|
vmov.16 d0[0], r4
|
|
vst1.16 {d0[0]}, [r5]
|
|
pop {r4-r6,pc}
|
|
endfunc
|