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/*
* Copyright (c) 2009 David Conrad
*
* 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"
.macro vp3_loop_filter
vsubl.u8 q3, d18, d17
vsubl.u8 q2, d16, d19
vadd.i16 q1, q3, q3
vadd.i16 q2, q2, q3
vadd.i16 q0, q1, q2
vrshr.s16 q0, q0, #3
vmovl.u8 q9, d18
vdup.u16 q15, r2
vabs.s16 q1, q0
vshr.s16 q0, q0, #15
vqsub.u16 q2, q15, q1
vqsub.u16 q3, q2, q1
vsub.i16 q1, q2, q3
veor q1, q1, q0
vsub.i16 q0, q1, q0
vaddw.u8 q2, q0, d17
vsub.i16 q3, q9, q0
vqmovun.s16 d0, q2
vqmovun.s16 d1, q3
.endm
function ff_vp3_v_loop_filter_neon, export=1
sub ip, r0, r1
sub r0, r0, r1, lsl #1
vld1.64 {d16}, [r0,:64], r1
vld1.64 {d17}, [r0,:64], r1
vld1.64 {d18}, [r0,:64], r1
vld1.64 {d19}, [r0,:64], r1
ldrb r2, [r2, #129*4]
vp3_loop_filter
vst1.64 {d0}, [ip,:64], r1
vst1.64 {d1}, [ip,:64], r1
bx lr
.endfunc
function ff_vp3_h_loop_filter_neon, export=1
sub ip, r0, #1
sub r0, r0, #2
vld1.32 {d16[]}, [r0], r1
vld1.32 {d17[]}, [r0], r1
vld1.32 {d18[]}, [r0], r1
vld1.32 {d19[]}, [r0], r1
vld1.32 {d16[1]}, [r0], r1
vld1.32 {d17[1]}, [r0], r1
vld1.32 {d18[1]}, [r0], r1
vld1.32 {d19[1]}, [r0], r1
ldrb r2, [r2, #129*4]
vtrn.8 d16, d17
vtrn.8 d18, d19
vtrn.16 d16, d18
vtrn.16 d17, d19
vp3_loop_filter
vtrn.8 d0, d1
vst1.16 {d0[0]}, [ip], r1
vst1.16 {d1[0]}, [ip], r1
vst1.16 {d0[1]}, [ip], r1
vst1.16 {d1[1]}, [ip], r1
vst1.16 {d0[2]}, [ip], r1
vst1.16 {d1[2]}, [ip], r1
vst1.16 {d0[3]}, [ip], r1
vst1.16 {d1[3]}, [ip], r1
bx lr
.endfunc
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