/*
 * Copyright (c) 2011 Janne Grunau <janne-libav@jannau.net>
 * 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 "libavutil/arm/asm.S"
#include "neon.S"

.macro  qpel_lowpass    r0,  r1,  rc1, rc2, shift
        vext.8          d25, \r0, \r1, #1       @ src[-1]
        vext.8          d26, \r0, \r1, #4       @ src[ 2]
        vext.8          d24, \r0, \r1, #5       @ src[ 3]
        vaddl.u8        q9,  d25, d26
        vaddl.u8        q8,  \r0, d24
        vext.8          d27, \r0, \r1, #2       @ src[ 0]
        vshl.s16        q12, q9,  #2
        vsub.s16        q8,  q8,  q9
        vext.8          d28, \r0, \r1, #3       @ src[ 1]
        vsub.s16        q8,  q8,  q12
        vmlal.u8        q8,  d27, \rc1
        vmlal.u8        q8,  d28, \rc2
        vqrshrun.s16    \r0, q8,  #\shift
.endm

.macro  qpel_lowpass_x2 r0,  r1,  r2,  r3,  rc1, rc2, shift
        vext.8          d25, \r0, \r1, #1       @ src[-1]
        vext.8          d26, \r0, \r1, #4       @ src[ 2]
        vext.8          d24, \r0, \r1, #5       @ src[ 3]
        vaddl.u8        q9,  d25, d26
        vaddl.u8        q8,  \r0, d24
        vext.8          d29, \r0, \r1, #2       @ src[ 0]
        vext.8          d28, \r0, \r1, #3       @ src[ 1]
        vshl.s16        q10, q9,  #2
        vext.8          \r1, \r2, \r3, #1       @ src[-1]
        vsub.s16        q8,  q8,  q9
        vext.8          d22, \r2, \r3, #4       @ src[ 2]
        vext.8          \r0, \r2, \r3, #5       @ src[ 3]
        vaddl.u8        q13, \r1, d22
        vaddl.u8        q12, \r2, \r0
        vsub.s16        q8,  q8,  q10
        vshl.s16        q9,  q13, #2
        vsub.s16        q12, q12, q13
        vmlal.u8        q8,  d29, \rc1
        vmlal.u8        q8,  d28, \rc2
        vsub.s16        q12, q12, q9
        vext.8          d26, \r2, \r3, #2       @ src[ 0]
        vext.8          d27, \r2, \r3, #3       @ src[ 1]
        vmlal.u8        q12, d26, \rc1
        vmlal.u8        q12, d27, \rc2
        vqrshrun.s16    \r0, q8,  #\shift
        vqrshrun.s16    \r2, q12, #\shift
.endm

.macro  rv40_qpel8_h    shift
function put_rv40_qpel8_h_lp_packed_s\shift\()_neon
1:
        vld1.8          {q2},     [r1], r2
        vld1.8          {q3},     [r1], r2
        qpel_lowpass_x2 d4,  d5,  d6,  d7,  d0,  d1,  \shift
        vst1.8          {d4},     [r12,:64]!
        vst1.8          {d6},     [r12,:64]!
        subs            r3,  r3,  #2
        bgt             1b
        vld1.8          {q2},     [r1]
        qpel_lowpass    d4,  d5,  d0,  d1,  \shift
        vst1.8          {d4},     [r12,:64]!
        bx              lr
endfunc
.endm

.macro  rv40_qpel8_v    shift, type
function \type\()_rv40_qpel8_v_lp_packed_s\shift\()_neon
        vld1.64         {d2},     [r1,:64]!
        vld1.64         {d3},     [r1,:64]!
        vld1.64         {d4},     [r1,:64]!
        vld1.64         {d5},     [r1,:64]!
        vld1.64         {d6},     [r1,:64]!
        vld1.64         {d7},     [r1,:64]!
        vld1.64         {d8},     [r1,:64]!
        vld1.64         {d9},     [r1,:64]!
        vld1.64         {d10},    [r1,:64]!
        vld1.64         {d11},    [r1,:64]!
        vld1.64         {d12},    [r1,:64]!
        vld1.64         {d13},    [r1,:64]!
        vld1.64         {d14},    [r1,:64]!
        transpose_8x8   d2,  d3,  d4,  d5,  d6,  d7,  d8,  d9
        transpose_8x8   d10, d11, d12, d13, d14, d15, d30, d31
        qpel_lowpass_x2 d2,  d10, d3,  d11, d0,  d1,  \shift
        qpel_lowpass_x2 d4,  d12, d5,  d13, d0,  d1,  \shift
        qpel_lowpass_x2 d6,  d14, d7,  d15, d0,  d1,  \shift
        qpel_lowpass_x2 d8,  d30, d9,  d31, d0,  d1,  \shift
        transpose_8x8   d2,  d3,  d4,  d5,  d6,  d7,  d8,  d9
  .ifc \type,avg
        vld1.64         d12,      [r0,:64], r2
        vld1.64         d13,      [r0,:64], r2
        vld1.64         d14,      [r0,:64], r2
        vld1.64         d15,      [r0,:64], r2
        vld1.64         d16,      [r0,:64], r2
        vld1.64         d17,      [r0,:64], r2
        vld1.64         d18,      [r0,:64], r2
        vld1.64         d19,      [r0,:64], r2
        sub             r0,  r0,  r2,  lsl #3
        vrhadd.u8       q1,  q1,  q6
        vrhadd.u8       q2,  q2,  q7
        vrhadd.u8       q3,  q3,  q8
        vrhadd.u8       q4,  q4,  q9
  .endif
        vst1.64         d2,       [r0,:64], r2
        vst1.64         d3,       [r0,:64], r2
        vst1.64         d4,       [r0,:64], r2
        vst1.64         d5,       [r0,:64], r2
        vst1.64         d6,       [r0,:64], r2
        vst1.64         d7,       [r0,:64], r2
        vst1.64         d8,       [r0,:64], r2
        vst1.64         d9,       [r0,:64], r2
        bx              lr
endfunc
.endm

        rv40_qpel8_h    5
        rv40_qpel8_h    6

.macro  rv40_qpel       type
function \type\()_rv40_qpel8_h_lowpass_neon
  .ifc \type,avg
        mov             r12, r0
  .endif
1:
        vld1.8          {q2},     [r1], r2
        vld1.8          {q3},     [r1], r2
        qpel_lowpass_x2 d4,  d5,  d6,  d7,  d0,  d1,  6
  .ifc \type,avg
        vld1.8          {d3},     [r12,:64], r2
        vld1.8          {d16},    [r12,:64], r2
        vrhadd.u8       d4,  d4,  d3
        vrhadd.u8       d6,  d6,  d16
  .endif
        vst1.8          {d4},     [r0,:64], r2
        vst1.8          {d6},     [r0,:64], r2
        subs            r3,  r3,  #2
        bgt             1b
        bx              lr
endfunc

function \type\()_rv40_qpel8_v_lowpass_neon
        vld1.64         {d2},     [r1], r2
        vld1.64         {d3},     [r1], r2
        vld1.64         {d4},     [r1], r2
        vld1.64         {d5},     [r1], r2
        vld1.64         {d6},     [r1], r2
        vld1.64         {d7},     [r1], r2
        vld1.64         {d8},     [r1], r2
        vld1.64         {d9},     [r1], r2
        vld1.64         {d10},    [r1], r2
        vld1.64         {d11},    [r1], r2
        vld1.64         {d12},    [r1], r2
        vld1.64         {d13},    [r1], r2
        vld1.64         {d14},    [r1]
        transpose_8x8   d2,  d3,  d4,  d5,  d6,  d7,  d8,  d9
        transpose_8x8   d10, d11, d12, d13, d14, d15, d30, d31
        qpel_lowpass_x2 d2,  d10, d3,  d11, d0,  d1,  6
        qpel_lowpass_x2 d4,  d12, d5,  d13, d0,  d1,  6
        qpel_lowpass_x2 d6,  d14, d7,  d15, d0,  d1,  6
        qpel_lowpass_x2 d8,  d30, d9,  d31, d0,  d1,  6
        transpose_8x8   d2,  d3,  d4,  d5,  d6,  d7,  d8,  d9
  .ifc \type,avg
        vld1.64         d12,      [r0,:64], r2
        vld1.64         d13,      [r0,:64], r2
        vld1.64         d14,      [r0,:64], r2
        vld1.64         d15,      [r0,:64], r2
        vld1.64         d16,      [r0,:64], r2
        vld1.64         d17,      [r0,:64], r2
        vld1.64         d18,      [r0,:64], r2
        vld1.64         d19,      [r0,:64], r2
        sub             r0,  r0,  r2,  lsl #3
        vrhadd.u8       q1,  q1,  q6
        vrhadd.u8       q2,  q2,  q7
        vrhadd.u8       q3,  q3,  q8
        vrhadd.u8       q4,  q4,  q9
  .endif
        vst1.64         d2,       [r0,:64], r2
        vst1.64         d3,       [r0,:64], r2
        vst1.64         d4,       [r0,:64], r2
        vst1.64         d5,       [r0,:64], r2
        vst1.64         d6,       [r0,:64], r2
        vst1.64         d7,       [r0,:64], r2
        vst1.64         d8,       [r0,:64], r2
        vst1.64         d9,       [r0,:64], r2
        bx              lr
endfunc

        rv40_qpel8_v    5, \type
        rv40_qpel8_v    6, \type

function ff_\type\()_rv40_qpel8_mc10_neon, export=1
        sub             r1,  r1,  #2
        mov             r3,  #8
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        b               \type\()_rv40_qpel8_h_lowpass_neon
endfunc

function ff_\type\()_rv40_qpel8_mc30_neon, export=1
        sub             r1,  r1,  #2
        mov             r3,  #8
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        b               \type\()_rv40_qpel8_h_lowpass_neon
endfunc

function ff_\type\()_rv40_qpel8_mc01_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             r1,  r1,  r2,  lsl #1
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc11_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc21_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vmov.i8         d0,  #52
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc31_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vswp            d0,  d1
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc12_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vmov.i8         d0,  #20
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc22_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc32_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vmov.i8         d1,  #20
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc03_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             r1,  r1,  r2,  lsl #1
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc33_neon, export=1
        mov             r3,  #8
        b               X(ff_\type\()_pixels8_xy2_neon)
endfunc

function ff_\type\()_rv40_qpel8_mc13_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vswp            d0,  d1
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel8_mc23_neon, export=1
        push            {r4, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #14*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        mov             r3,  #12
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        vmov.i8         d1,  #52
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #14*8
        vpop            {d8-d15}
        pop             {r4, pc}
endfunc

function ff_\type\()_rv40_qpel16_mc10_neon, export=1
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
.L\type\()_rv40_qpel16_h:
        push            {r1, lr}
        sub             r1,  r1,  #2
        mov             r3,  #16
        bl              \type\()_rv40_qpel8_h_lowpass_neon
        pop             {r1, lr}
        sub             r0,  r0,  r2,  lsl #4
        add             r0,  r0,  #8
        add             r1,  r1,  #6
        mov             r3,  #16
        b               \type\()_rv40_qpel8_h_lowpass_neon
endfunc

function ff_\type\()_rv40_qpel16_mc30_neon, export=1
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        b               .L\type\()_rv40_qpel16_h
endfunc

function ff_\type\()_rv40_qpel16_mc01_neon, export=1
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
.L\type\()_rv40_qpel16_v:
        sub             r1,  r1,  r2,  lsl #1
        push            {r1, lr}
        vpush           {d8-d15}
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        sub             r1,  r1,  r2,  lsl #2
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        ldr             r1,  [sp, #64]
        sub             r0,  r0,  r2,  lsl #4
        add             r0,  r0,  #8
        add             r1,  r1,  #8
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        sub             r1,  r1,  r2,  lsl #2
        bl              \type\()_rv40_qpel8_v_lowpass_neon
        vpop            {d8-d15}
        pop             {r1, pc}
endfunc

function ff_\type\()_rv40_qpel16_mc11_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
.L\type\()_rv40_qpel16_v_s6:
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        sub             r1,  r1,  #40
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        sub             r0,  r0,  r2,  lsl #4
        add             r0,  r0,  #8
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        sub             r1,  r1,  #40
        bl              \type\()_rv40_qpel8_v_lp_packed_s6_neon
        add             sp,  sp,  #44*8
        vpop            {d8-d15}
        pop             {r1, pc}
endfunc

function ff_\type\()_rv40_qpel16_mc21_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        vmov.i8         d0,  #52
        b               .L\type\()_rv40_qpel16_v_s6
endfunc

function ff_\type\()_rv40_qpel16_mc31_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        vswp            d0,  d1
        b               .L\type\()_rv40_qpel16_v_s6
endfunc

function ff_\type\()_rv40_qpel16_mc12_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        vmov.i8         d0,  #20
.L\type\()_rv40_qpel16_v_s5:
        add             r1,  sp,  #7
        bic             r1,  r1,  #7
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        sub             r1,  r1,  #40
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        sub             r0,  r0,  r2,  lsl #4
        add             r0,  r0,  #8
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        sub             r1,  r1,  #40
        bl              \type\()_rv40_qpel8_v_lp_packed_s5_neon
        add             sp,  sp,  #44*8
        vpop            {d8-d15}
        pop             {r1, pc}
endfunc

function ff_\type\()_rv40_qpel16_mc22_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        b               .L\type\()_rv40_qpel16_v_s5
endfunc

function ff_\type\()_rv40_qpel16_mc32_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        vmov.i8         d1,  #20
        b               .L\type\()_rv40_qpel16_v_s5
endfunc

function ff_\type\()_rv40_qpel16_mc03_neon, export=1
        vmov.i8         d0,  #20
        vmov.i8         d1,  #52
        b               .L\type\()_rv40_qpel16_v
endfunc

function ff_\type\()_rv40_qpel16_mc13_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #52
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s6_neon
        vswp            d0,  d1
        b               .L\type\()_rv40_qpel16_v_s6
endfunc

function ff_\type\()_rv40_qpel16_mc23_neon, export=1
        sub             r1,  r1,  r2,  lsl #1
        sub             r1,  r1,  #2
        push            {r1, lr}
        vpush           {d8-d15}
        sub             sp,  sp,  #44*8
        add             r12, sp,  #7
        bic             r12, r12, #7
        mov             r3,  #20
        vmov.i8         d0,  #20
        vmov.i8         d1,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        ldr             r1,  [sp, #416]
        add             r1,  r1,  #8
        mov             r3,  #20
        bl              put_rv40_qpel8_h_lp_packed_s5_neon
        vmov.i8         d1,  #52
        b               .L\type\()_rv40_qpel16_v_s6
endfunc

function ff_\type\()_rv40_qpel16_mc33_neon, export=1
        mov             r3,  #16
        b               X(ff_\type\()_pixels16_xy2_neon)
endfunc
.endm

        rv40_qpel       put
        rv40_qpel       avg

.macro  rv40_weight
        vmovl.u8        q8,  d2
        vmovl.u8        q9,  d3
        vmovl.u8        q10, d4
        vmovl.u8        q11, d5
        vmull.u16       q2,  d16, d0[2]
        vmull.u16       q3,  d17, d0[2]
        vmull.u16       q8,  d18, d0[2]
        vmull.u16       q9,  d19, d0[2]
        vmull.u16       q12, d20, d0[0]
        vmull.u16       q13, d21, d0[0]
        vmull.u16       q14, d22, d0[0]
        vmull.u16       q15, d23, d0[0]
        vshrn.i32       d4,  q2,  #9
        vshrn.i32       d5,  q3,  #9
        vshrn.i32       d6,  q8,  #9
        vshrn.i32       d7,  q9,  #9
        vshrn.i32       d16, q12, #9
        vshrn.i32       d17, q13, #9
        vshrn.i32       d18, q14, #9
        vshrn.i32       d19, q15, #9
        vadd.u16        q2,  q2,  q8
        vadd.u16        q3,  q3,  q9
        vrshrn.i16      d2,  q2,  #5
        vrshrn.i16      d3,  q3,  #5
.endm

/* void ff_rv40_weight_func_16_neon(uint8_t *dst, uint8_t *src1, uint8_t *src2,
                                    int w1, int w2, int stride) */
function ff_rv40_weight_func_16_neon, export=1
        ldr             r12, [sp]
        vmov            d0,  r3,  r12
        ldr             r12, [sp, #4]
        mov             r3,  #16
1:
        vld1.8          {q1},     [r1,:128], r12
        vld1.8          {q2},     [r2,:128], r12
        rv40_weight
        vst1.8          {q1},     [r0,:128], r12
        subs            r3,  r3,  #1
        bne             1b
        bx              lr
endfunc

/* void ff_rv40_weight_func_8_neon(uint8_t *dst, uint8_t *src1, uint8_t *src2,
                                   int w1, int w2, int stride) */
function ff_rv40_weight_func_8_neon, export=1
        ldr             r12, [sp]
        vmov            d0,  r3,  r12
        ldr             r12, [sp, #4]
        mov             r3,  #8
1:
        vld1.8          {d2},     [r1,:64], r12
        vld1.8          {d3},     [r1,:64], r12
        vld1.8          {d4},     [r2,:64], r12
        vld1.8          {d5},     [r2,:64], r12
        rv40_weight
        vst1.8          {d2},     [r0,:64], r12
        vst1.8          {d3},     [r0,:64], r12
        subs            r3,  r3,  #2
        bne             1b
        bx              lr
endfunc

function ff_rv40_h_loop_filter_strength_neon, export=1
        pkhbt           r2,  r3,  r2,  lsl #18

        ldr             r3,  [r0]
        ldr_dpre        r12, r0,  r1
        teq             r3,  r12
        beq             1f

        sub             r0,  r0,  r1,  lsl #1

        vld1.32         {d4[]},   [r0,:32], r1  @ -3
        vld1.32         {d0[]},   [r0,:32], r1  @ -2
        vld1.32         {d4[1]},  [r0,:32], r1  @ -1
        vld1.32         {d5[]},   [r0,:32], r1  @  0
        vld1.32         {d1[]},   [r0,:32], r1  @  1
        vld1.32         {d5[0]},  [r0,:32], r1  @  2

        vpaddl.u8       q8,  q0                 @ -2, -2, -2, -2,  1,  1,  1,  1
        vpaddl.u8       q9,  q2                 @ -3, -3, -1, -1,  2,  2,  0,  0
        vdup.32         d30, r2                 @ beta2, beta << 2
        vpadd.u16       d16, d16, d17           @ -2, -2,  1,  1
        vpadd.u16       d18, d18, d19           @ -3, -1,  2,  0
        vabd.u16        d16, d18, d16
        vclt.u16        d16, d16, d30

        ldrd            r2,  r3,  [sp, #4]
        vmovl.u16       q12, d16
        vtrn.16         d16, d17
        vshr.u32        q12, q12, #15
        ldr             r0,  [sp]
        vst1.32         {d24[1]}, [r2,:32]
        vst1.32         {d25[1]}, [r3,:32]

        cmp             r0,  #0
        it              eq
        bxeq            lr

        vand            d18, d16, d17
        vtrn.32         d18, d19
        vand            d18, d18, d19
        vmov.u16        r0,  d18[0]
        bx              lr
1:
        ldrd            r2,  r3,  [sp, #4]
        mov             r0,  #0
        str             r0,  [r2]
        str             r0,  [r3]
        bx              lr
endfunc

function ff_rv40_v_loop_filter_strength_neon, export=1
        sub             r0,  r0,  #3
        pkhbt           r2,  r3,  r2,  lsl #18

        vld1.8          {d0},     [r0], r1
        vld1.8          {d1},     [r0], r1
        vld1.8          {d2},     [r0], r1
        vld1.8          {d3},     [r0], r1

        vaddl.u8        q0,  d0,  d1
        vaddl.u8        q1,  d2,  d3
        vdup.32         q15, r2
        vadd.u16        q0,  q0,  q1            @ -3, -2, -1,  0,  1,  2
        vext.16         q1,  q0,  q0,  #1       @ -2, -1,  0,  1,  2
        vabd.u16        q0,  q1,  q0
        vclt.u16        q0,  q0,  q15

        ldrd            r2,  r3,  [sp, #4]
        vmovl.u16       q1,  d0
        vext.16         d1,  d0,  d1,  #3
        vshr.u32        q1,  q1,  #15
        ldr             r0,  [sp]
        vst1.32         {d2[1]},  [r2,:32]
        vst1.32         {d3[1]},  [r3,:32]

        cmp             r0,  #0
        it              eq
        bxeq            lr

        vand            d0,  d0,  d1
        vtrn.16         d0,  d1
        vand            d0,  d0,  d1
        vmov.u16        r0,  d0[0]
        bx              lr
endfunc

.macro  rv40_weak_loop_filter
        vdup.16         d30, r2                 @ filter_p1
        vdup.16         d31, r3                 @ filter_q1
        ldrd            r2,  r3,  [sp]
        vdup.16         d28, r2                 @ alpha
        vdup.16         d29, r3                 @ beta
        ldr             r12, [sp, #8]
        vdup.16         d25, r12                @ lim_p0q0
        ldrd            r2,  r3,  [sp, #12]
        vsubl.u8        q9,  d5,  d4            @ x, t
        vabdl.u8        q8,  d5,  d4            @ x, abs(t)
        vneg.s16        q15, q15
        vceq.i16        d16, d19, #0            @ !t
        vshl.s16        d19, d19, #2            @ t << 2
        vmul.u16        d18, d17, d28           @ alpha * abs(t)
        vand            d24, d30, d31           @ filter_p1 & filter_q1
        vsubl.u8        q1,  d0,  d4            @ p1p2, p1p0
        vsubl.u8        q3,  d1,  d5            @ q1q2, q1q0
        vmov.i16        d22, #3
        vshr.u16        d18, d18, #7
        vadd.i16        d22, d22, d24           @ 3 - (filter_p1 & filter_q1)
        vsubl.u8        q10, d0,  d1            @ src[-2] - src[1]
        vcle.u16        d18, d18, d22
        vand            d20, d20, d24
        vneg.s16        d23, d25                @ -lim_p0q0
        vadd.s16        d19, d19, d20
        vbic            d16, d18, d16           @ t && u <= 3 - (fp1 & fq1)
        vtrn.32         d4,  d5                 @ -3,  2, -1,  0
        vrshr.s16       d19, d19, #3
        vmov            d28, d29                @ beta
        vswp            d3,  d6                 @ q1q2, p1p0
        vmin.s16        d19, d19, d25
        vand            d30, d30, d16
        vand            d31, d31, d16
        vadd.s16        q10, q1,  q3            @ p1p2 + p1p0, q1q2 + q1q0
        vmax.s16        d19, d19, d23           @ diff
        vabs.s16        q1,  q1                 @ abs(p1p2), abs(q1q2)
        vand            d18, d19, d16           @ diff
        vcle.u16        q1,  q1,  q14
        vneg.s16        d19, d18                @ -diff
        vdup.16         d26, r3                 @ lim_p1
        vaddw.u8        q2,  q9,  d5            @ src[-1]+diff, src[0]-diff
        vhsub.s16       q11, q10, q9
        vand            q1,  q1,  q15
        vqmovun.s16     d4,  q2                 @ -1,  0
        vand            q9,  q11, q1
        vdup.16         d27, r2                 @ lim_q1
        vneg.s16        q9,  q9
        vneg.s16        q14, q13
        vmin.s16        q9,  q9,  q13
        vtrn.32         d0,  d1                 @ -2,  1,  -2,  1
        vmax.s16        q9,  q9,  q14
        vaddw.u8        q3,  q9,  d0
        vqmovun.s16     d5,  q3                 @ -2,  1
.endm

function ff_rv40_h_weak_loop_filter_neon, export=1
        sub             r0,  r0,  r1,  lsl #1
        sub             r0,  r0,  r1

        vld1.32         {d4[]},   [r0,:32], r1
        vld1.32         {d0[]},   [r0,:32], r1
        vld1.32         {d4[1]},  [r0,:32], r1
        vld1.32         {d5[]},   [r0,:32], r1
        vld1.32         {d1[]},   [r0,:32], r1
        vld1.32         {d5[0]},  [r0,:32]

        sub             r0,  r0,  r1,  lsl #2

        rv40_weak_loop_filter

        vst1.32         {d5[0]},  [r0,:32], r1
        vst1.32         {d4[0]},  [r0,:32], r1
        vst1.32         {d4[1]},  [r0,:32], r1
        vst1.32         {d5[1]},  [r0,:32], r1

        bx              lr
endfunc

function ff_rv40_v_weak_loop_filter_neon, export=1
        sub             r12, r0,  #3
        sub             r0,  r0,  #2

        vld1.8          {d4},     [r12], r1
        vld1.8          {d5},     [r12], r1
        vld1.8          {d2},     [r12], r1
        vld1.8          {d3},     [r12], r1

        vtrn.16         q2,  q1
        vtrn.8          d4,  d5
        vtrn.8          d2,  d3

        vrev64.32       d5,  d5
        vtrn.32         q2,  q1
        vdup.32         d0,  d3[0]
        vdup.32         d1,  d2[0]

        rv40_weak_loop_filter

        vtrn.32         q2,  q3
        vswp            d4,  d5

        vst4.8          {d4[0],d5[0],d6[0],d7[0]}, [r0], r1
        vst4.8          {d4[1],d5[1],d6[1],d7[1]}, [r0], r1
        vst4.8          {d4[2],d5[2],d6[2],d7[2]}, [r0], r1
        vst4.8          {d4[3],d5[3],d6[3],d7[3]}, [r0], r1

        bx              lr
endfunc
