FFmpeg/libavcodec/arm/int_neon.S
Michael Niedermayer bf807a5e87 Merge remote-tracking branch 'qatar/master'
* qatar/master: (29 commits)
  sbrdsp.asm: convert all instructions to float/SSE ones.
  dv: cosmetics.
  dv: check buffer size before reading profile.
  Revert "AAC SBR: group some writes."
  udp: Print an error message if bind fails
  cook: extend channel uncoupling tables so the full bit range is covered.
  roqvideo: cosmetics.
  roqvideo: convert to bytestream2 API.
  dca: don't use av_clip_uintp2().
  wmall: fix build with -DDEBUG enabled.
  smc: port to bytestream2 API.
  AAC SBR: group some writes.
  dsputil: remove shift parameter from scalarproduct_int16
  SBR DSP: unroll sum_square
  rv34: remove dead code in intra availability check
  rv34: clean a bit availability checks.
  v4l2: update documentation
  tgq: convert to bytestream2 API.
  parser: remove forward declaration of MpegEncContext
  dca: prevent accessing static arrays with invalid indexes.
  ...

Conflicts:
	doc/indevs.texi
	libavcodec/Makefile
	libavcodec/dca.c
	libavcodec/dvdata.c
	libavcodec/eatgq.c
	libavcodec/mmvideo.c
	libavcodec/roqvideodec.c
	libavcodec/smc.c
	libswscale/output.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-08 02:51:45 +01:00

94 lines
3.2 KiB
ArmAsm

/*
* ARM NEON optimised integer operations
* Copyright (c) 2009 Kostya Shishkov
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "asm.S"
preserve8
.fpu neon
function ff_scalarproduct_int16_neon, export=1
vmov.i16 q0, #0
vmov.i16 q1, #0
vmov.i16 q2, #0
vmov.i16 q3, #0
1: vld1.16 {d16-d17}, [r0]!
vld1.16 {d20-d21}, [r1,:128]!
vmlal.s16 q0, d16, d20
vld1.16 {d18-d19}, [r0]!
vmlal.s16 q1, d17, d21
vld1.16 {d22-d23}, [r1,:128]!
vmlal.s16 q2, d18, d22
vmlal.s16 q3, d19, d23
subs r2, r2, #16
bne 1b
vpadd.s32 d16, d0, d1
vpadd.s32 d17, d2, d3
vpadd.s32 d10, d4, d5
vpadd.s32 d11, d6, d7
vpadd.s32 d0, d16, d17
vpadd.s32 d1, d10, d11
vpadd.s32 d2, d0, d1
vpaddl.s32 d3, d2
vmov.32 r0, d3[0]
bx lr
endfunc
@ scalarproduct_and_madd_int16(/*aligned*/v0,v1,v2,order,mul)
function ff_scalarproduct_and_madd_int16_neon, export=1
vld1.16 {d28[],d29[]}, [sp]
vmov.i16 q0, #0
vmov.i16 q1, #0
vmov.i16 q2, #0
vmov.i16 q3, #0
mov r12, r0
1: vld1.16 {d16-d17}, [r0,:128]!
vld1.16 {d18-d19}, [r1]!
vld1.16 {d20-d21}, [r2]!
vld1.16 {d22-d23}, [r0,:128]!
vld1.16 {d24-d25}, [r1]!
vld1.16 {d26-d27}, [r2]!
vmul.s16 q10, q10, q14
vmul.s16 q13, q13, q14
vmlal.s16 q0, d16, d18
vmlal.s16 q1, d17, d19
vadd.s16 q10, q8, q10
vadd.s16 q13, q11, q13
vmlal.s16 q2, d22, d24
vmlal.s16 q3, d23, d25
vst1.16 {q10}, [r12,:128]!
subs r3, r3, #16
vst1.16 {q13}, [r12,:128]!
bne 1b
vpadd.s32 d16, d0, d1
vpadd.s32 d17, d2, d3
vpadd.s32 d10, d4, d5
vpadd.s32 d11, d6, d7
vpadd.s32 d0, d16, d17
vpadd.s32 d1, d10, d11
vpadd.s32 d2, d0, d1
vpaddl.s32 d3, d2
vmov.32 r0, d3[0]
bx lr
endfunc