/*
* VP8 ARMv6 optimisations
*
* Copyright (c) 2010 Google Inc.
* Copyright (c) 2010 Rob Clark <rob@ti.com>
* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
*
* 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
*
* This code was partially ported from libvpx, which uses this license:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Google nor the names of its contributors may
* be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "libavutil/arm/asm.S"
@ idct
@ void vp8_luma_dc_wht(int16_t block[4][4][16], int16_t dc[16])
function ff_vp8_luma_dc_wht_armv6, export=1
push {r4-r10, lr}
ldm r1, {r2-r9}
mov r10, #0
mov lr, #0
uadd16 r12, r2, r8 @ t0[0,1]
usub16 r2, r2, r8 @ t3[0,1]
stm r1!, {r10, lr}
uadd16 r8, r4, r6 @ t1[0,1]
usub16 r4, r4, r6 @ t2[0,1]
stm r1!, {r10, lr}
uadd16 r6, r12, r8 @ dc0[0,1]
usub16 r12, r12, r8 @ dc2[0,1]
stm r1!, {r10, lr}
uadd16 r8, r2, r4 @ dc1[0,1]
usub16 r2, r2, r4 @ dc3[0,1]
stm r1!, {r10, lr}
uadd16 lr, r3, r9 @ t0[2,3]
usub16 r3, r3, r9 @ t3[2,3]
uadd16 r9, r5, r7 @ t1[2,3]
usub16 r5, r5, r7 @ t2[2,3]
uadd16 r7, lr, r9 @ dc0[2,3]
usub16 lr, lr, r9 @ dc2[2,3]
uadd16 r9, r3, r5 @ dc1[2,3]
usub16 r3, r3, r5 @ dc3[2,3]
mov r1, #3
orr r1, r1, #0x30000 @ 3 | 3 (round)
pkhbt r4, r6, r8, lsl #16 @ dc{0,1}[0]
pkhtb r6, r8, r6, asr #16 @ dc{0,1}[1]
pkhbt r5, r12, r2, lsl #16 @ dc{2,3}[0]
pkhtb r12, r2, r12, asr #16 @ dc{2,3}[1]
pkhbt r8, r7, r9, lsl #16 @ dc{0,1}[2]
uadd16 r4, r4, r1
uadd16 r5, r5, r1
pkhtb r7, r9, r7, asr #16 @ dc{0,1}[3]
pkhbt r2, lr, r3, lsl #16 @ dc{2,3}[2]
pkhtb lr, r3, lr, asr #16 @ dc{2,3}[3]
uadd16 r9, r4, r7 @ t0[0,1]
uadd16 r3, r5, lr @ t0[2,3]
usub16 r4, r4, r7 @ t3[0,1]
usub16 r5, r5, lr @ t3[2,3]
uadd16 r7, r6, r8 @ t1[0,1]
uadd16 lr, r12, r2 @ t1[2,3]
usub16 r6, r6, r8 @ t2[0,1]
usub16 r12, r12, r2 @ t2[2,3]
uadd16 r8, r9, r7 @ block[0,1][0]
uadd16 r2, r3, lr @ block[2,3][0]
usub16 r9, r9, r7 @ block[0,1][2]
usub16 r3, r3, lr @ block[2,3][2]
uadd16 r7, r4, r6 @ block[0,1][1]
uadd16 lr, r5, r12 @ block[2,3][1]
usub16 r4, r4, r6 @ block[0,1][3]
usub16 r5, r5, r12 @ block[2,3][3]
#if HAVE_ARMV6T2_EXTERNAL
sbfx r6, r8, #3, #13
sbfx r12, r7, #3, #13
sbfx r1, r9, #3, #13
sbfx r10, r4, #3, #13
#else
sxth r6, r8
sxth r12, r7
sxth r1, r9
sxth r10, r4
asr r6, #3 @ block[0][0]
asr r12, #3 @ block[0][1]
asr r1, #3 @ block[0][2]
asr r10, #3 @ block[0][3]
#endif
strh r6, [r0], #32
asr r8, r8, #19 @ block[1][0]
strh r12, [r0], #32
asr r7, r7, #19 @ block[1][1]
strh r1, [r0], #32
asr r9, r9, #19 @ block[1][2]
strh r10, [r0], #32
asr r4, r4, #19 @ block[1][3]
strh r8, [r0], #32
asr r6, r2, #19 @ block[3][0]
strh r7, [r0], #32
asr r12, lr, #19 @ block[3][1]
strh r9, [r0], #32
asr r1, r3, #19 @ block[3][2]
strh r4, [r0], #32
asr r10, r5, #19 @ block[3][3]
#if HAVE_ARMV6T2_EXTERNAL
sbfx r2, r2, #3, #13
sbfx lr, lr, #3, #13
sbfx r3, r3, #3, #13
sbfx r5, r5, #3, #13
#else
sxth r2, r2
sxth lr, lr
sxth r3, r3
sxth r5, r5
asr r2, #3 @ block[2][0]
asr lr, #3 @ block[2][1]
asr r3, #3 @ block[2][2]
asr r5, #3 @ block[2][3]
#endif
strh r2, [r0], #32
strh lr, [r0], #32
strh r3, [r0], #32
strh r5, [r0], #32
strh r6, [r0], #32
strh r12, [r0], #32
strh r1, [r0], #32
strh r10, [r0], #32
pop {r4-r10, pc}
endfunc
@ void vp8_luma_dc_wht_dc(int16_t block[4][4][16], int16_t dc[16])
function ff_vp8_luma_dc_wht_dc_armv6, export=1
ldrsh r2, [r1]
mov r3, #0
add r2, r2, #3
strh r3, [r1]
asr r2, r2, #3
.rept 16
strh r2, [r0], #32
.endr
bx lr
endfunc
@ void vp8_idct_add(uint8_t *dst, int16_t block[16], int stride)
function ff_vp8_idct_add_armv6, export=1
push {r4-r12, lr}
sub sp, sp, #32
movw r3, #20091 @ cospi8sqrt2minus1
movw r4, #35468 @ sinpi8sqrt2
mov r5, sp
1:
ldr r6, [r1, #8] @ i5 | i4 = block1[1] | block1[0]
ldr lr, [r1, #16] @ i9 | i8 = block2[1] | block2[0]
ldr r12, [r1, #24] @ i13 | i12 = block3[1] | block3[0]
smulwt r9, r3, r6 @ ip[5] * cospi8sqrt2minus1
smulwb r7, r3, r6 @ ip[4] * cospi8sqrt2minus1
smulwt r10, r4, r6 @ ip[5] * sinpi8sqrt2
smulwb r8, r4, r6 @ ip[4] * sinpi8sqrt2
pkhbt r7, r7, r9, lsl #16 @ 5c | 4c
smulwt r11, r3, r12 @ ip[13] * cospi8sqrt2minus1
pkhbt r8, r8, r10, lsl #16 @ 5s | 4s = t2 first half
uadd16 r6, r6, r7 @ 5c+5 | 4c+4 = t3 first half
smulwb r9, r3, r12 @ ip[12] * cospi8sqrt2minus1
smulwt r7, r4, r12 @ ip[13] * sinpi8sqrt2
smulwb r10, r4, r12 @ ip[12] * sinpi8sqrt2
pkhbt r9, r9, r11, lsl #16 @ 13c | 12c
ldr r11, [r1] @ i1 | i0
pkhbt r10, r10, r7, lsl #16 @ 13s | 12s = t3 second half
uadd16 r7, r12, r9 @ 13c+13 | 12c+12 = t2 2nd half
uadd16 r6, r6, r10 @ d = t3
uadd16 r10, r11, lr @ a = t0
usub16 r7, r8, r7 @ c = t2
usub16 r8, r11, lr @ b = t1
uadd16 r9, r10, r6 @ a+d = tmp{0,1}[0]
usub16 r10, r10, r6 @ a-d = tmp{0,1}[3]
uadd16 r6, r8, r7 @ b+c = tmp{0,1}[1]
usub16 r7, r8, r7 @ b-c = tmp{0,1}[2]
mov r8, #0
cmp sp, r5
str r6, [r5, #8] @ o5 | o4
str r7, [r5, #16] @ o9 | o8
str r10, [r5, #24] @ o13 | o12
str r9, [r5], #4 @ o1 | o0
str r8, [r1, #8]
str r8, [r1, #16]
str r8, [r1, #24]
str r8, [r1], #4
beq 1b
mov r5, #2
2:
pop {r1, r6, r12, lr}
smulwt r9, r3, r12 @ ip[5] * cospi8sqrt2minus1
smulwt r7, r3, r1 @ ip[1] * cospi8sqrt2minus1
smulwt r10, r4, r12 @ ip[5] * sinpi8sqrt2
smulwt r8, r4, r1 @ ip[1] * sinpi8sqrt2
pkhbt r11, r1, r12, lsl #16 @ i4 | i0 = t0/t1 first half
pkhtb r1, r12, r1, asr #16 @ i5 | i1
pkhbt r7, r7, r9, lsl #16 @ 5c | 1c
pkhbt r8, r8, r10, lsl #16 @ 5s | 1s = t2 first half
pkhbt r9, r6, lr, lsl #16 @ i6 | i2 = t0/t1 second half
pkhtb r12, lr, r6, asr #16 @ i7 | i3
uadd16 r1, r7, r1 @ 5c+5 | 1c+1 = t3 first half
uadd16 r10, r11, r9 @ a = t0
usub16 r9, r11, r9 @ b = t1
smulwt r7, r3, r12 @ ip[7] * cospi8sqrt2minus1
smulwb lr, r3, r12 @ ip[3] * cospi8sqrt2minus1
smulwt r11, r4, r12 @ ip[7] * sinpi8sqrt2
smulwb r6, r4, r12 @ ip[3] * sinpi8sqrt2
subs r5, r5, #1
pkhbt r7, lr, r7, lsl #16 @ 7c | 3c
pkhbt r11, r6, r11, lsl #16 @ 7s | 3s = t3 second half
mov r6, #0x4
orr r6, r6, #0x40000
uadd16 r12, r7, r12 @ 7c+7 | 3c+3 = t2 second half
uadd16 r10, r10, r6 @ t0 + 4
uadd16 r9, r9, r6 @ t1 + 4
usub16 lr, r8, r12 @ c (o5 | o1) = t2
uadd16 r12, r11, r1 @ d (o7 | o3) = t3
usub16 r1, r9, lr @ b-c = dst{0,1}[2]
uadd16 r7, r10, r12 @ a+d = dst{0,1}[0]
usub16 r12, r10, r12 @ a-d = dst{0,1}[3]
uadd16 r10, r9, lr @ b+c = dst{0,1}[1]
asr lr, r1, #3 @ o[1][2]
asr r9, r12, #3 @ o[1][3]
pkhtb r8, lr, r7, asr #19 @ o[1][0,2]
pkhtb r11, r9, r10, asr #19 @ o[1][1,3]
ldr lr, [r0]
sxth r12, r12
ldr r9, [r0, r2]
sxth r1, r1
#if HAVE_ARMV6T2_EXTERNAL
sbfx r7, r7, #3, #13
sbfx r10, r10, #3, #13
#else
sxth r7, r7
sxth r10, r10
asr r7, #3 @ o[0][0]
asr r10, #3 @ o[0][1]
#endif
pkhbt r7, r7, r1, lsl #13 @ o[0][0,2]
pkhbt r10, r10, r12, lsl #13 @ o[0][1,3]
uxtab16 r7, r7, lr
uxtab16 r10, r10, lr, ror #8
uxtab16 r8, r8, r9
uxtab16 r11, r11, r9, ror #8
usat16 r7, #8, r7
usat16 r10, #8, r10
usat16 r8, #8, r8
usat16 r11, #8, r11
orr r7, r7, r10, lsl #8
orr r8, r8, r11, lsl #8
str r8, [r0, r2]
str_post r7, r0, r2, lsl #1
bne 2b
pop {r4-r12, pc}
endfunc
@ void vp8_idct_dc_add(uint8_t *dst, int16_t block[16], int stride)
function ff_vp8_idct_dc_add_armv6, export=1
push {r4-r6, lr}
add r6, r0, r2, lsl #1
ldrsh r3, [r1]
mov r4, #0
add r3, r3, #4
strh r4, [r1], #32
asr r3, #3
ldr r5, [r0]
ldr r4, [r0, r2]
pkhbt r3, r3, r3, lsl #16
uxtab16 lr, r3, r5 @ a1+2 | a1+0
uxtab16 r5, r3, r5, ror #8 @ a1+3 | a1+1
uxtab16 r12, r3, r4
uxtab16 r4, r3, r4, ror #8
usat16 lr, #8, lr
usat16 r5, #8, r5
usat16 r12, #8, r12
usat16 r4, #8, r4
orr lr, lr, r5, lsl #8
ldr r5, [r6]
orr r12, r12, r4, lsl #8
ldr r4, [r6, r2]
str lr, [r0]
uxtab16 lr, r3, r5
str r12, [r0, r2]
uxtab16 r5, r3, r5, ror #8
uxtab16 r12, r3, r4
uxtab16 r4, r3, r4, ror #8
usat16 lr, #8, lr
usat16 r5, #8, r5
usat16 r12, #8, r12
usat16 r4, #8, r4
orr lr, lr, r5, lsl #8
orr r12, r12, r4, lsl #8
str lr, [r6]
str r12, [r6, r2]
pop {r4-r6, pc}
endfunc
@ void vp8_idct_dc_add4uv(uint8_t *dst, int16_t block[4][16], int stride)
function ff_vp8_idct_dc_add4uv_armv6, export=1
push {r4, lr}
bl ff_vp8_idct_dc_add_armv6
add r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
add r0, r0, r2, lsl #2
sub r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
add r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
pop {r4, pc}
endfunc
@ void vp8_idct_dc_add4y(uint8_t *dst, int16_t block[4][16], int stride)
function ff_vp8_idct_dc_add4y_armv6, export=1
push {r4, lr}
bl ff_vp8_idct_dc_add_armv6
add r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
add r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
add r0, r0, #4
bl ff_vp8_idct_dc_add_armv6
pop {r4, pc}
endfunc
@ loopfilter
.macro transpose o3, o2, o1, o0, i0, i1, i2, i3
uxtb16 \o1, \i1 @ xx 12 xx 10
uxtb16 \o0, \i0 @ xx 02 xx 00
uxtb16 \o3, \i3 @ xx 32 xx 30
uxtb16 \o2, \i2 @ xx 22 xx 20
orr \o1, \o0, \o1, lsl #8 @ 12 02 10 00
orr \o3, \o2, \o3, lsl #8 @ 32 22 30 20
uxtb16 \i1, \i1, ror #8 @ xx 13 xx 11
uxtb16 \i3, \i3, ror #8 @ xx 33 xx 31
uxtb16 \i0, \i0, ror #8 @ xx 03 xx 01
uxtb16 \i2, \i2, ror #8 @ xx 23 xx 21
orr \i0, \i0, \i1, lsl #8 @ 13 03 11 01
orr \i2, \i2, \i3, lsl #8 @ 33 23 31 21
pkhtb \o2, \o3, \o1, asr #16 @ 32 22 12 02
pkhbt \o0, \o1, \o3, lsl #16 @ 30 20 10 00
pkhtb \o3, \i2, \i0, asr #16 @ 33 23 13 03
pkhbt \o1, \i0, \i2, lsl #16 @ 31 21 11 01
.endm
.macro simple_filter
uqsub8 r7, r3, r6 @ p1 - q1
uqsub8 r8, r6, r3 @ q1 - p1
uqsub8 r10, r4, r5 @ p0 - q0
uqsub8 r9, r5, r4 @ q0 - p0
orr r7, r7, r8 @ abs(p1 - q1)
orr r9, r9, r10 @ abs(p0 - q0)
uhadd8 r7, r7, lr @ abs(p1 - q2) >> 1
uqadd8 r9, r9, r9 @ abs(p0 - q0) * 2
uqadd8 r7, r7, r9 @ abs(p0 - q0)*2 + abs(p1-q1)/2
mvn r8, #0
usub8 r10, r12, r7 @ compare to flimit
sel r10, r8, lr @ filter mask: F or 0
cmp r10, #0
beq 2f
eor r3, r3, r2 @ ps1
eor r6, r6, r2 @ qs1
eor r4, r4, r2 @ ps0
eor r5, r5, r2 @ qs0
qsub8 r3, r3, r6 @ vp8_filter = p1 - q1
qsub8 r6, r5, r4 @ q0 - p0
qadd8 r3, r3, r6 @ += q0 - p0
lsr r7, r2, #5 @ 0x04040404
qadd8 r3, r3, r6 @ += q0 - p0
sub r9, r7, r2, lsr #7 @ 0x03030303
qadd8 r3, r3, r6 @ vp8_filter = p1-q1 + 3*(q0-p0)
and r3, r3, r10 @ vp8_filter &= mask
qadd8 r9, r3, r9 @ Filter2 = vp8_filter + 3
qadd8 r3, r3, r7 @ Filter1 = vp8_filter + 4
shadd8 r9, r9, lr
shadd8 r3, r3, lr
shadd8 r9, r9, lr
shadd8 r3, r3, lr
shadd8 r9, r9, lr @ Filter2 >>= 3
shadd8 r3, r3, lr @ Filter1 >>= 3
qadd8 r4, r4, r9 @ u = p0 + Filter2
qsub8 r5, r5, r3 @ u = q0 - Filter1
eor r4, r4, r2 @ *op0 = u ^ 0x80
eor r5, r5, r2 @ *oq0 = u ^ 0x80
.endm
@ void vp8_v_loop_filter16_simple(uint8_t *dst, int stride, int flim)
function ff_vp8_v_loop_filter16_simple_armv6, export=1
push {r4-r11, lr}
orr r2, r2, r2, lsl #16
mov r11, #4
mov lr, #0
orr r12, r2, r2, lsl #8
mov32 r2, 0x80808080
1:
ldr_nreg r3, r0, r1, lsl #1 @ p1
ldr_nreg r4, r0, r1 @ p0
ldr r5, [r0] @ q0
ldr r6, [r0, r1] @ q1
simple_filter
T sub r7, r0, r1
str r5, [r0] @ oq0
A str r4, [r0, -r1] @ op0
T str r4, [r7]
2:
subs r11, r11, #1
add r0, r0, #4
bne 1b
pop {r4-r11, pc}
endfunc
.macro filter_mask_p
uqsub8 r6, r9, r10 @ p3 - p2
uqsub8 r7, r10, r9 @ p2 - p3
uqsub8 r8, r10, r11 @ p2 - p1
uqsub8 r10, r11, r10 @ p1 - p2
orr r6, r6, r7 @ abs(p3-p2)
orr r8, r8, r10 @ abs(p2-p1)
uqsub8 lr, r6, r2 @ compare to limit
uqsub8 r8, r8, r2 @ compare to limit
uqsub8 r6, r11, r12 @ p1 - p0
orr lr, lr, r8
uqsub8 r7, r12, r11 @ p0 - p1
orr r6, r6, r7 @ abs(p1-p0)
uqsub8 r7, r6, r2 @ compare to limit
uqsub8 r8, r6, r3 @ compare to thresh
orr lr, lr, r7
.endm
.macro filter_mask_pq
uqsub8 r6, r11, r10 @ p1 - q1
uqsub8 r7, r10, r11 @ q1 - p1
uqsub8 r11, r12, r9 @ p0 - q0
uqsub8 r12, r9, r12 @ q0 - p0
orr r6, r6, r7 @ abs(p1-q1)
orr r12, r11, r12 @ abs(p0-q0)
mov32 r7, 0x7f7f7f7f
uqadd8 r12, r12, r12 @ abs(p0-q0) * 2
and r6, r7, r6, lsr #1 @ abs(p1-q1) / 2
uqadd8 r12, r12, r6 @ abs(p0-q0) * 2 + abs(p1-q1)/2
.endm
.macro filter_mask_v
filter_mask_p
ldr r10, [r0, r1] @ q1
ldr_post r9, r0, r1, lsl #1 @ q0
filter_mask_pq
ldr r11, [r0] @ q2
uqsub8 r7, r9, r10 @ q0 - q1
uqsub8 r6, r10, r9 @ q1 - q0
uqsub8 r12, r12, r4 @ compare to flimit
uqsub8 r9, r11, r10 @ q2 - q1
uqsub8 r10, r10, r11 @ q1 - q2
orr lr, lr, r12
ldr r12, [r0, r1] @ q3
orr r6, r7, r6 @ abs(q1-q0)
orr r10, r9, r10 @ abs(q2-q1)
uqsub8 r9, r12, r11 @ q3 - q2
uqsub8 r11, r11, r12 @ q2 - q3
uqsub8 r7, r6, r2 @ compare to limit
uqsub8 r10, r10, r2 @ compare to limit
uqsub8 r6, r6, r3 @ compare to thresh
orr r9, r9, r11 @ abs(q3-q2)
orr lr, lr, r7
orr lr, lr, r10
uqsub8 r9, r9, r2 @ compare to limit
orr lr, lr, r9
mov r12, #0
usub8 lr, r12, lr
mvn r11, #0
sel lr, r11, r12 @ filter mask
sub r0, r0, r1, lsl #1
.endm
.macro filter_mask_h
transpose r12, r11, r10, r9, r6, r7, r8, lr
filter_mask_p
stm sp, {r8, r11, r12, lr}
sub r0, r0, r1, lsl #2
add r0, r0, #4
ldr r7, [r0, r1]
ldr_post r6, r0, r1, lsl #1
ldr lr, [r0, r1]
ldr r8, [r0]
transpose r12, r11, r10, r9, r6, r7, r8, lr
uqsub8 r8, r12, r11 @ q3 - q2
uqsub8 lr, r11, r12 @ q2 - q3
uqsub8 r7, r9, r10 @ q0 - q1
uqsub8 r6, r10, r9 @ q1 - q0
uqsub8 r12, r11, r10 @ q2 - q1
uqsub8 r11, r10, r11 @ q1 - q2
orr r8, r8, lr @ abs(q3-q2)
orr r6, r7, r6 @ abs(q1-q0)
orr r11, r12, r11 @ abs(q2-q1)
ldr lr, [sp, #12] @ load back (f)limit accumulator
uqsub8 r8, r8, r2 @ compare to limit
uqsub8 r7, r6, r2 @ compare to limit
uqsub8 r11, r11, r2 @ compare to limit
orr lr, lr, r8
uqsub8 r8, r6, r3 @ compare to thresh
orr lr, lr, r7
ldr r12, [sp, #8] @ p1
orr lr, lr, r11
ldr r11, [sp, #4] @ p0
filter_mask_pq
mov r10, #0
uqsub8 r12, r12, r4 @ compare to flimit
mvn r11, #0
orr lr, lr, r12
usub8 lr, r10, lr
sel lr, r11, r10 @ filter mask
.endm
.macro filter inner
mov32 r12, 0x80808080
eor r11, r7, r12 @ ps1
eor r8, r8, r12 @ ps0
eor r9, r9, r12 @ qs0
eor r10, r10, r12 @ qs1
stm sp, {r8-r11}
qsub8 r7, r11, r10 @ vp8_signed_char_clamp(ps1-qs1)
qsub8 r8, r9, r8 @ vp8_signed_char_clamp(vp8_filter + 3 * ( qs0 - ps0))
.if \inner
and r7, r7, r6 @ vp8_filter &= hev
.endif
qadd8 r7, r7, r8
lsr r10, r12, #5 @ 0x04040404
qadd8 r7, r7, r8
sub r9, r10, r12, lsr #7 @ 0x03030303
qadd8 r7, r7, r8
and r7, r7, lr @ vp8_filter &= mask
.if !\inner
mov r12, r7 @ Filter2
and r7, r7, r6 @ Filter2 &= hev
.endif
qadd8 lr, r7, r9 @ Filter2 = vp8_signed_char_clamp(vp8_filter+3)
qadd8 r7, r7, r10 @ Filter1 = vp8_signed_char_clamp(vp8_filter+4)
mov r9, #0
shadd8 lr, lr, r9 @ Filter2 >>= 3
shadd8 r7, r7, r9 @ Filter1 >>= 3
shadd8 lr, lr, r9
shadd8 r7, r7, r9
shadd8 lr, lr, r9 @ Filter2
shadd8 r7, r7, r9 @ Filter1
.endm
.macro filter_v inner
orr r10, r6, r8 @ calculate vp8_hevmask
ldr_nreg r7, r0, r1, lsl #1 @ p1
usub8 r10, r12, r10
ldr_nreg r8, r0, r1 @ p0
sel r6, r12, r11 @ obtain vp8_hevmask
ldr r9, [r0] @ q0
ldr r10, [r0, r1] @ q1
filter \inner
.endm
.macro filter_h inner
orr r9, r6, r8
usub8 r9, r12, r9
sel r6, r12, r11 @ hev mask
stm sp, {r6, lr}
ldr_nreg r12, r0, r1, lsl #1
ldr_nreg r11, r0, r1
ldr r6, [r0]
ldr lr, [r0, r1]
transpose r10, r9, r8, r7, r12, r11, r6, lr
ldm sp, {r6, lr}
filter \inner
.endm
.macro filter_inner
ldm sp, {r8, r9}
lsr r10, r10, #2 @ 0x01010101
qadd8 r8, r8, lr @ u = vp8_signed_char_clamp(ps0 + Filter2)
mov lr, #0
qsub8 r9, r9, r7 @ u = vp8_signed_char_clamp(qs0 - Filter1)
sadd8 r7, r7, r10 @ vp8_filter += 1
ldr r10, [sp, #8] @ qs1
shadd8 r7, r7, lr @ vp8_filter >>= 1
eor r8, r8, r12 @ *op0 = u ^ 0x80
bic r7, r7, r6 @ vp8_filter &= ~hev
qadd8 r11, r11, r7 @ u = vp8_signed_char_clamp(ps1 + vp8_filter)
eor r9, r9, r12 @ *oq0 = u ^ 0x80
qsub8 r10, r10, r7 @ u = vp8_signed_char_clamp(qs1 - vp8_filter)
eor r11, r11, r12 @ *op1 = u ^ 0x80
eor r10, r10, r12 @ *oq1 = u ^ 0x80
.endm
.macro filter_x c0
mov lr, \c0
mov r7, #63
sxtb16 r6, r12
sxtb16 r10, r12, ror #8
smlabb r8, r6, lr, r7
smlatb r6, r6, lr, r7
smlabb r7, r10, lr, r7
smultb r10, r10, lr
ssat r8, #8, r8, asr #7
ssat r6, #8, r6, asr #7
add r10, r10, #63
ssat r7, #8, r7, asr #7
ssat r10, #8, r10, asr #7
pkhbt r6, r8, r6, lsl #16
pkhbt r10, r7, r10, lsl #16
uxtb16 r6, r6
uxtb16 r10, r10
mov32 lr, 0x80808080
orr r10, r6, r10, lsl #8 @ u = vp8_signed_char_clamp((63 + Filter2 * 27)>>7)
qsub8 r8, r9, r10 @ s = vp8_signed_char_clamp(qs0 - u)
qadd8 r10, r11, r10 @ s = vp8_signed_char_clamp(ps0 + u)
eor r8, r8, lr @ *oq0 = s ^ 0x80
eor r10, r10, lr @ *op0 = s ^ 0x80
.endm
.macro filter_1
ldm sp, {r8, r9}
qadd8 r11, r8, lr
qsub8 r9, r9, r7
bic r12, r12, r6 @ vp8_filter &= ~hev
filter_x #27
.endm
.macro filter_2
ldr r9, [sp, #8] @ qs1
ldr r11, [sp, #12] @ ps1
filter_x #18
.endm
.macro filter_3
eor r9, r9, lr
eor r11, r11, lr
filter_x #9
.endm
function vp8_v_loop_filter_inner_armv6
mov r5, #4
sub sp, sp, #16
orr r2, r2, r2, lsl #16
orr r3, r3, r3, lsl #16
orr r6, r6, r6, lsl #16
orr r4, r2, r2, lsl #8 @ flimE
orr r2, r3, r3, lsl #8 @ flimI
orr r3, r6, r6, lsl #8 @ thresh
1:
sub r0, r0, r1, lsl #2
ldr r10, [r0, r1] @ p2
ldr_post r9, r0, r1, lsl #1 @ p3
ldr r12, [r0, r1] @ p0
ldr_post r11, r0, r1, lsl #1 @ p1
filter_mask_v
cmp lr, #0
beq 2f
filter_v inner=1
filter_inner
A str r11, [r0, -r1, lsl #1] @ op1
A str r8, [r0, -r1] @ op0
T sub r0, r0, r1, lsl #1
T str r8, [r0, r1]
T str_post r11, r0, r1, lsl #1
str r9, [r0] @ oq0
str r10, [r0, r1] @ oq1
2:
add r0, r0, #4
cmp r5, #3
it eq
ldreq r0, [sp, #16]
subs r5, r5, #1
bne 1b
add sp, sp, #16
pop {r0, r4-r11, pc}
endfunc
function ff_vp8_v_loop_filter16_inner_armv6, export=1
push {r4-r11, lr}
add r12, r0, #8
push {r12}
ldr r6, [sp, #40]
orr r2, r2, r2, lsl #16
b vp8_v_loop_filter_inner_armv6
endfunc
function ff_vp8_v_loop_filter8uv_inner_armv6, export=1
push {r1, r4-r11, lr}
mov r1, r2
orr r2, r3, r3, lsl #16
ldr r3, [sp, #40]
ldr r6, [sp, #44]
b vp8_v_loop_filter_inner_armv6
endfunc
function vp8_v_loop_filter_armv6
mov r5, #4
sub sp, sp, #16
orr r3, r3, r3, lsl #16
orr r6, r6, r6, lsl #16
orr r4, r2, r2, lsl #8 @ flimE
orr r2, r3, r3, lsl #8 @ flimI
orr r3, r6, r6, lsl #8 @ thresh
1:
sub r0, r0, r1, lsl #2
ldr r10, [r0, r1] @ p2
ldr_post r9, r0, r1, lsl #1 @ p3
ldr r12, [r0, r1] @ p0
ldr_post r11, r0, r1, lsl #1 @ p1
filter_mask_v
cmp lr, #0
beq 2f
filter_v inner=0
filter_1
str r8, [r0] @ *oq0
A str r10, [r0, -r1] @ *op0
T sub r0, r0, r1, lsl #1
T str r10, [r0, r1]
filter_2
A str r10, [r0, -r1, lsl #1] @ *op1
T str_post r10, r0, r1, lsl #1
str r8, [r0, r1] @ *oq1
ldr r9, [r0, r1, lsl #1] @ q2
add r0, r0, r1
A ldr r11, [r0, -r1, lsl #2] @ p2
T ldr_dpre r11, r0, r1, lsl #2
filter_3
A str r10, [r0, -r1, lsl #2] @ *op2
T str_post r10, r0, r1, lsl #2
str r8, [r0, r1] @ *oq2
sub r0, r0, r1
2:
add r0, r0, #4
cmp r5, #3
it eq
ldreq r0, [sp, #16]
subs r5, r5, #1
bne 1b
add sp, sp, #16
pop {r0, r4-r11, pc}
endfunc
function ff_vp8_v_loop_filter16_armv6, export=1
push {r4-r11, lr}
add r12, r0, #8
push {r12}
ldr r6, [sp, #40]
orr r2, r2, r2, lsl #16
b vp8_v_loop_filter_armv6
endfunc
function ff_vp8_v_loop_filter8uv_armv6, export=1
push {r1, r4-r11, lr}
mov r1, r2
orr r2, r3, r3, lsl #16
ldr r3, [sp, #40]
ldr r6, [sp, #44]
b vp8_v_loop_filter_armv6
endfunc
@ void vp8_h_loop_filter16_simple(uint8_t *dst, int stride, int flim)
function ff_vp8_h_loop_filter16_simple_armv6, export=1
push {r4-r11, lr}
orr r12, r2, r2, lsl #16
mov32 r2, 0x80808080
orr r12, r12, r12, lsl #8
mov lr, #0
mov r11, #4
1:
sub r0, r0, #2
ldr r8, [r0, r1]
ldr_post r7, r0, r1, lsl #1
ldr r10, [r0, r1]
ldr_post r9, r0, r1, lsl #1
add r0, r0, #2
transpose r6, r5, r4, r3, r7, r8, r9, r10
simple_filter
sub r0, r0, r1, lsl #2
sub r0, r0, #1
uxtb16 r6, r4
uxtb16 r8, r5
uxtb16 r7, r4, ror #8
uxtb16 r9, r5, ror #8
orr r6, r6, r8, lsl #8
orr r7, r7, r9, lsl #8
lsr r4, r6, #16
lsr r5, r7, #16
strh_post r6, r0, r1
strh_post r7, r0, r1
strh_post r4, r0, r1
strh_post r5, r0, r1
add r0, r0, #1
2:
subs r11, r11, #1
bne 1b
pop {r4-r11, pc}
endfunc
function vp8_h_loop_filter_inner_armv6
mov r5, #4
sub sp, sp, #16
orr r3, r3, r3, lsl #16
orr r9, r9, r9, lsl #16
orr r4, r2, r2, lsl #8 @ flimE
orr r2, r3, r3, lsl #8 @ flimI
orr r3, r9, r9, lsl #8 @ thresh
sub r0, r0, #4
1:
ldr r7, [r0, r1]
ldr_post r6, r0, r1, lsl #1
ldr lr, [r0, r1]
ldr_post r8, r0, r1, lsl #1
filter_mask_h
cmp lr, #0
sub r0, r0, #2
beq 2f
ldr r6, [sp]
filter_h inner=1
filter_inner
transpose lr, r12, r7, r6, r11, r8, r9, r10
A str r6, [r0, -r1, lsl #1]
A str r7, [r0, -r1]
T sub r0, r0, r1, lsl #1
T str r7, [r0, r1]
T str_post r6, r0, r1, lsl #1
str r12, [r0]
str lr, [r0, r1]
2:
sub r0, r0, #2
add r0, r0, r1, lsl #1
cmp r5, #3
it eq
ldreq r0, [sp, #16]
subs r5, r5, #1
bne 1b
add sp, sp, #16
pop {r0, r4-r11, pc}
endfunc
function ff_vp8_h_loop_filter16_inner_armv6, export=1
push {r4-r11, lr}
add r12, r0, r1, lsl #3
sub r12, r12, #4
push {r12}
ldr r9, [sp, #40]
orr r2, r2, r2, lsl #16
b vp8_h_loop_filter_inner_armv6
endfunc
function ff_vp8_h_loop_filter8uv_inner_armv6, export=1
sub r1, r1, #4
push {r1, r4-r11, lr}
mov r1, r2
orr r2, r3, r3, lsl #16
ldr r3, [sp, #40]
ldr r9, [sp, #44]
b vp8_h_loop_filter_inner_armv6
endfunc
function vp8_h_loop_filter_armv6
mov r5, #4
sub sp, sp, #16
orr r3, r3, r3, lsl #16
orr r9, r9, r9, lsl #16
orr r4, r2, r2, lsl #8 @ flimE
orr r2, r3, r3, lsl #8 @ flimI
orr r3, r9, r9, lsl #8 @ thresh
1:
sub r0, r0, #4
ldr r7, [r0, r1]
ldr_post r6, r0, r1, lsl #1
ldr lr, [r0, r1]
ldr_post r8, r0, r1, lsl #1
filter_mask_h
cmp lr, #0
it eq
addeq r0, r0, r1, lsl #1
beq 2f
ldr r6, [sp]
sub r0, r0, #2
filter_h inner=0
filter_1
sub r0, r0, r1, lsl #1
uxtb16 r6, r10
uxtb16 r7, r8
uxtb16 r10, r10, ror #8
uxtb16 r8, r8, ror #8
orr r6, r6, r7, lsl #8
orr r10, r10, r8, lsl #8
lsr r7, r6, #16
lsr r8, r10, #16
add r0, r0, #1
strh_post r6, r0, r1
strh_post r10, r0, r1
strh_post r7, r0, r1
strh_post r8, r0, r1
filter_2
sub r0, r0, r1, lsl #2
add r0, r0, #3
ldrb r11, [r0, #-5] @ p2 for 1/7th difference
strb r10, [r0, #-4] @ op1
strb r8, [r0, #-1] @ oq1
ldrb_post r9, r0, r1 @ q2 for 1/7th difference
lsr r10, r10, #8
lsr r8, r8, #8
ldrb r6, [r0, #-5]
strb r10, [r0, #-4]
strb r8, [r0, #-1]
ldrb_post r7, r0, r1
lsr r10, r10, #8
lsr r8, r8, #8
orr r11, r11, r6, lsl #8
orr r9, r9, r7, lsl #8
ldrb r6, [r0, #-5]
strb r10, [r0, #-4]
strb r8, [r0, #-1]
ldrb_post r7, r0, r1
lsr r10, r10, #8
lsr r8, r8, #8
orr r11, r11, r6, lsl #16
orr r9, r9, r7, lsl #16
ldrb r6, [r0, #-5]
strb r10, [r0, #-4]
strb r8, [r0, #-1]
ldrb_post r7, r0, r1
orr r11, r11, r6, lsl #24
orr r9, r9, r7, lsl #24
filter_3
sub r0, r0, r1, lsl #2
strb r10, [r0, #-5]
strb_post r8, r0, r1
lsr r10, r10, #8
lsr r8, r8, #8
strb r10, [r0, #-5]
strb_post r8, r0, r1
lsr r10, r10, #8
lsr r8, r8, #8
strb r10, [r0, #-5]
strb_post r8, r0, r1
lsr r10, r10, #8
lsr r8, r8, #8
strb r10, [r0, #-5]
strb_post r8, r0, r1
sub r0, r0, #2
2:
cmp r5, #3
it eq
ldreq r0, [sp, #16]
subs r5, r5, #1
bne 1b
add sp, sp, #16
pop {r0, r4-r11, pc}
endfunc
function ff_vp8_h_loop_filter16_armv6, export=1
push {r4-r11, lr}
add r12, r0, r1, lsl #3
push {r12}
ldr r9, [sp, #40]
orr r2, r2, r2, lsl #16
b vp8_h_loop_filter_armv6
endfunc
function ff_vp8_h_loop_filter8uv_armv6, export=1
push {r1, r4-r11, lr}
mov r1, r2
orr r2, r3, r3, lsl #16
ldr r3, [sp, #40]
ldr r9, [sp, #44]
b vp8_h_loop_filter_armv6
endfunc
.ltorg
@ MC
@ void put_vp8_pixels16(uint8_t *dst, int dststride, uint8_t *src,
@ int srcstride, int h, int mx, int my)
function ff_put_vp8_pixels16_armv6, export=1
push {r4-r11}
ldr r12, [sp, #32] @ h
1:
subs r12, r12, #2
ldr r5, [r2, #4]
ldr r6, [r2, #8]
ldr r7, [r2, #12]
ldr_post r4, r2, r3
ldr r9, [r2, #4]
ldr r10, [r2, #8]
ldr r11, [r2, #12]
ldr_post r8, r2, r3
strd r6, r7, [r0, #8]
strd_post r4, r5, r0, r1
strd r10, r11, [r0, #8]
strd_post r8, r9, r0, r1
bgt 1b
pop {r4-r11}
bx lr
endfunc
@ void put_vp8_pixels8(uint8_t *dst, int dststride, uint8_t *src,
@ int srcstride, int h, int mx, int my)
function ff_put_vp8_pixels8_armv6, export=1
push {r4-r11}
ldr r12, [sp, #32] @ h
1:
subs r12, r12, #4
ldr r5, [r2, #4]
ldr_post r4, r2, r3
ldr r7, [r2, #4]
ldr_post r6, r2, r3
ldr r9, [r2, #4]
ldr_post r8, r2, r3
ldr r11, [r2, #4]
ldr_post r10, r2, r3
strd_post r4, r5, r0, r1
strd_post r6, r7, r0, r1
strd_post r8, r9, r0, r1
strd_post r10, r11, r0, r1
bgt 1b
pop {r4-r11}
bx lr
endfunc
@ void put_vp8_pixels4(uint8_t *dst, int dststride, uint8_t *src,
@ int srcstride, int h, int mx, int my)
function ff_put_vp8_pixels4_armv6, export=1
ldr r12, [sp, #0] @ h
push {r4-r6,lr}
1:
subs r12, r12, #4
ldr_post r4, r2, r3
ldr_post r5, r2, r3
ldr_post r6, r2, r3
ldr_post lr, r2, r3
str_post r4, r0, r1
str_post r5, r0, r1
str_post r6, r0, r1
str_post lr, r0, r1
bgt 1b
pop {r4-r6,pc}
endfunc
@ note: worst case sum of all 6-tap filter values * 255 is 0x7f80 so 16 bit
@ arithmatic can be used to apply filters
const sixtap_filters_13245600, align=4
.short 2, 108, -11, 36, -8, 1, 0, 0
.short 3, 77, -16, 77, -16, 3, 0, 0
.short 1, 36, -8, 108, -11, 2, 0, 0
endconst
const fourtap_filters_1324, align=4
.short -6, 12, 123, -1
.short -9, 50, 93, -6
.short -6, 93, 50, -9
.short -1, 123, 12, -6
endconst
.macro vp8_mc_1 name, size, hv
function ff_put_vp8_\name\size\()_\hv\()_armv6, export=1
sub r1, r1, #\size
mov r12, sp
push {r1, r4-r11, lr}
ldm r12, {r5-r7}
mov r4, #\size
stm r12, {r4, r5}
orr r12, r6, r7
b vp8_put_\name\()_\hv\()_armv6 + 4
endfunc
.endm
vp8_mc_1 epel, 16, h6
vp8_mc_1 epel, 16, v6
vp8_mc_1 epel, 8, h6
vp8_mc_1 epel, 8, v6
vp8_mc_1 epel, 8, h4
vp8_mc_1 epel, 8, v4
vp8_mc_1 epel, 4, h6
vp8_mc_1 epel, 4, v6
vp8_mc_1 epel, 4, h4
vp8_mc_1 epel, 4, v4
vp8_mc_1 bilin, 16, h
vp8_mc_1 bilin, 16, v
vp8_mc_1 bilin, 8, h
vp8_mc_1 bilin, 8, v
vp8_mc_1 bilin, 4, h
vp8_mc_1 bilin, 4, v
/* True relational expressions have the value -1 in the GNU assembler,
+1 in Apple's. */
#ifdef __APPLE__
# define TMPSIZE \size * (8 + 8*(\size > 4) + \ytaps - 1)
#else
# define TMPSIZE \size * (8 - 8*(\size > 4) + \ytaps - 1)
#endif
.macro vp8_mc_hv name, size, h, v, ytaps
function ff_put_vp8_\name\size\()_\h\v\()_armv6, export=1
push {r0, r1, r4, lr}
add r0, sp, #16
sub sp, sp, #TMPSIZE+16
ldm r0, {r0, r12}
mov r4, #\size
add lr, r0, #\ytaps-1
.if \ytaps > 2
sub r2, r2, r3, lsl #\ytaps >> 1 & 1
.endif
stm sp, {r4, lr}
add r0, sp, #16
mov r1, #0
bl vp8_put_\name\()_\h\()_armv6
add r0, sp, #TMPSIZE+16
ldr lr, [sp, #TMPSIZE+16+16]
ldm r0, {r0, r1}
mov r3, #\size
ldr r12, [sp, #TMPSIZE+16+16+8]
str lr, [sp, #4]
add r2, sp, #16 + \size * (\ytaps / 2 - 1)
sub r1, r1, #\size
bl vp8_put_\name\()_\v\()_armv6
add sp, sp, #TMPSIZE+16+8
pop {r4, pc}
endfunc
.endm
vp8_mc_hv epel, 16, h6, v6, 6
vp8_mc_hv epel, 8, h6, v6, 6
vp8_mc_hv epel, 8, h4, v6, 6
vp8_mc_hv epel, 8, h6, v4, 4
vp8_mc_hv epel, 8, h4, v4, 4
vp8_mc_hv epel, 4, h6, v6, 6
vp8_mc_hv epel, 4, h4, v6, 6
vp8_mc_hv epel, 4, h6, v4, 4
vp8_mc_hv epel, 4, h4, v4, 4
vp8_mc_hv bilin, 16, h, v, 2
vp8_mc_hv bilin, 8, h, v, 2
vp8_mc_hv bilin, 4, h, v, 2
.macro sat4 r0, r1, r2, r3
asr \r0, \r0, #7
asr \r1, \r1, #7
pkhbt \r0, \r0, \r2, lsl #9
pkhbt \r1, \r1, \r3, lsl #9
usat16 \r0, #8, \r0
usat16 \r1, #8, \r1
orr \r0, \r0, \r1, lsl #8
.endm
@ Calling convention for the inner MC functions:
@ r0 dst
@ r1 dst_stride - block_width
@ r2 src
@ r3 src_stride
@ r4 block_width
@ r12 filter_index
@ [sp] block_width
@ [sp+4] height
@ [sp+8] scratch
function vp8_put_epel_h6_armv6
push {r1, r4-r11, lr}
sub r2, r2, #2
movrel lr, sixtap_filters_13245600 - 16
add lr, lr, r12, lsl #3
sub r3, r3, r4
str r3, [sp, #48]
ldm lr, {r1, r3, lr}
1:
ldr r7, [r2, #5] @ src[5-8]
ldr r6, [r2, #2] @ src[2-5]
ldr r5, [r2], #4 @ src[0-3]
pkhtb r7, r7, r7, asr #8 @ src[8,7,7,6]
uxtb16 r9, r6, ror #8 @ src[5] | src[3]
uxtb16 r6, r6 @ src[4] | src[2]
uxtb16 r8, r5, ror #8 @ src[3] | src[1]
uxtb16 r11, r7, ror #8 @ src[8] | src[7]
uxtb16 r7, r7 @ src[7] | src[6]
uxtb16 r5, r5 @ src[2] | src[0]
mov r10, #0x40
smlad r5, r5, r1, r10 @ filter[0][0]
smlad r11, r11, lr, r10 @ filter[3][2]
smlad r12, r7, lr, r10 @ filter[2][2]
smlad r10, r8, r1, r10 @ filter[1][0]
smlad r5, r8, r3, r5 @ filter[0][1]
smlad r11, r9, r1, r11 @ filter[3][0]
smlad r12, r9, r3, r12 @ filter[2][1]
pkhtb r9, r9, r6, asr #16 @ src[5] | src[4]
smlad r10, r6, r3, r10 @ filter[1][1]
pkhbt r7, r9, r7, lsl #16 @ src[6] | src[4]
smlad r5, r9, lr, r5 @ filter[0][2]
pkhtb r8, r7, r9, asr #16 @ src[6] | src[5]
smlad r11, r7, r3, r11 @ filter[3][1]
smlad r9, r8, lr, r10 @ filter[1][2]
smlad r7, r6, r1, r12 @ filter[2][0]
subs r4, r4, #4
sat4 r5, r9, r7, r11
str r5, [r0], #4
bne 1b
add r4, sp, #40
ldm r4, {r4, r5, r12}
ldr r6, [sp]
subs r5, r5, #1
add r2, r2, r12
str r5, [sp, #44]
add r0, r0, r6
bne 1b
pop {r1, r4-r11, pc}
endfunc
function vp8_put_epel_v6_armv6
push {r1, r4-r11, lr}
movrel lr, sixtap_filters_13245600 - 16
add lr, lr, r12, lsl #3
str r3, [sp, #48]
1:
add r1, r3, r3, lsl #1 @ stride * 3
ldr_nreg r5, r2, r3 @ src[0,1,2,3 + stride * 1]
ldr r6, [r2, r3] @ src[0,1,2,3 + stride * 3]
ldr r7, [r2, r3, lsl #1] @ src[0,1,2,3 + stride * 4]
ldr r8, [r2, r1] @ src[0,1,2,3 + stride * 5]
uxtb16 r9, r5, ror #8 @ src[3 + s*1] | src[1 + s*1]
uxtb16 r10, r6, ror #8 @ src[3 + s*3] | src[1 + s*3]
uxtb16 r11, r7, ror #8 @ src[3 + s*4] | src[1 + s*4]
uxtb16 r12, r8, ror #8 @ src[3 + s*5] | src[1 + s*5]
uxtb16 r5, r5 @ src[2 + s*1] | src[0 + s*1]
uxtb16 r6, r6 @ src[2 + s*3] | src[0 + s*3]
uxtb16 r7, r7 @ src[2 + s*4] | src[0 + s*4]
uxtb16 r8, r8 @ src[2 + s*5] | src[0 + s*5]
pkhbt r1, r9, r10, lsl #16 @ src[1 + s*3] | src[1 + s*1]
pkhtb r9, r10, r9, asr #16 @ src[3 + s*3] | src[3 + s*1]
pkhbt r10, r11, r12, lsl #16 @ src[1 + s*5] | src[1 + s*4]
pkhtb r11, r12, r11, asr #16 @ src[3 + s*5] | src[3 + s*4]
pkhbt r12, r5, r6, lsl #16 @ src[0 + s*3] | src[0 + s*1]
pkhtb r5, r6, r5, asr #16 @ src[2 + s*3] | src[2 + s*1]
pkhbt r6, r7, r8, lsl #16 @ src[0 + s*5] | src[0 + s*4]
pkhtb r7, r8, r7, asr #16 @ src[2 + s*5] | src[2 + s*4]
ldr r8, [lr, #4]
mov r3, #0x40
smlad r12, r12, r8, r3 @ filter[0][1]
smlad r1, r1, r8, r3 @ filter[1][1]
smlad r5, r5, r8, r3 @ filter[2][1]
smlad r9, r9, r8, r3 @ filter[3][1]
ldr r8, [lr, #8]
ldr r3, [sp, #48]
smlad r12, r6, r8, r12 @ filter[0][2]
smlad r1, r10, r8, r1 @ filter[1][2]
ldr_nreg r6, r2, r3, lsl #1 @ src[0,1,2,3 + stride * 0]
ldr r10, [r2], #4 @ src[0,1,2,3 + stride * 2]
smlad r5, r7, r8, r5 @ filter[2][2]
smlad r9, r11, r8, r9 @ filter[3][2]
uxtb16 r7, r6, ror #8 @ src[3 + s*0] | src[1 + s*0]
uxtb16 r11, r10, ror #8 @ src[3 + s*2] | src[1 + s*2]
uxtb16 r6, r6 @ src[2 + s*0] | src[0 + s*0]
uxtb16 r10, r10 @ src[2 + s*2] | src[0 + s*2]
pkhbt r8, r7, r11, lsl #16 @ src[1 + s*2] | src[1 + s*0]
pkhtb r7, r11, r7, asr #16 @ src[3 + s*2] | src[3 + s*0]
pkhbt r11, r6, r10, lsl #16 @ src[0 + s*2] | src[0 + s*0]
pkhtb r6, r10, r6, asr #16 @ src[2 + s*2] | src[2 + s*0]
ldr r10, [lr]
subs r4, r4, #4
smlad r12, r11, r10, r12 @ filter[0][0]
smlad r1, r8, r10, r1 @ filter[1][0]
smlad r5, r6, r10, r5 @ filter[2][0]
smlad r9, r7, r10, r9 @ filter[3][0]
sat4 r12, r1, r5, r9
str r12, [r0], #4
bne 1b
ldrd r4, r5, [sp, #40]
ldr r6, [sp]
subs r5, r5, #1
sub r2, r2, r4
str r5, [sp, #44]
add r0, r0, r6
add r2, r2, r3
bne 1b
pop {r1, r4-r11, pc}
endfunc
function vp8_put_epel_h4_armv6
push {r1, r4-r11, lr}
subs r2, r2, #1
movrel lr, fourtap_filters_1324 - 4
add lr, lr, r12, lsl #2
sub r3, r3, r4
ldm lr, {r5, r6}
ldr lr, [sp, #44]
1:
ldr r9, [r2, #3]
ldr r8, [r2, #2]
ldr r7, [r2], #4
uxtb16 r9, r9, ror #8 @ src[6] | src[4]
uxtb16 r10, r8, ror #8 @ src[5] | src[3]
uxtb16 r8, r8 @ src[4] | src[2]
uxtb16 r11, r7, ror #8 @ src[3] | src[1]
uxtb16 r7, r7 @ src[2] | src[0]
mov r12, #0x40
smlad r9, r9, r6, r12 @ filter[3][1]
smlad r7, r7, r5, r12 @ filter[0][0]
smlad r9, r10, r5, r9 @ filter[3][0]
smlad r10, r10, r6, r12 @ filter[2][1]
smlad r12, r11, r5, r12 @ filter[1][0]
smlad r7, r11, r6, r7 @ filter[0][1]
smlad r10, r8, r5, r10 @ filter[2][0]
smlad r12, r8, r6, r12 @ filter[1][1]
subs r4, r4, #4
sat4 r7, r12, r10, r9
str r7, [r0], #4
bne 1b
subs lr, lr, #1
ldr r4, [sp, #40]
add r2, r2, r3
add r0, r0, r1
bne 1b
pop {r1, r4-r11, pc}
endfunc
function vp8_put_epel_v4_armv6
push {r1, r4-r11, lr}
movrel lr, fourtap_filters_1324 - 4
add lr, lr, r12, lsl #2
ldm lr, {r5, r6}
str r3, [sp, #48]
1:
ldr lr, [r2, r3, lsl #1]
ldr r12, [r2, r3]
ldr_nreg r7, r2, r3
ldr r11, [r2], #4
uxtb16 r8, lr, ror #8 @ src[3 + s*3] | src[1 + s*3]
uxtb16 r9, r12, ror #8 @ src[3 + s*2] | src[1 + s*2]
uxtb16 r3, r7, ror #8 @ src[3 + s*0] | src[1 + s*0]
uxtb16 r1, r11, ror #8 @ src[3 + s*1] | src[1 + s*1]
uxtb16 lr, lr @ src[2 + s*3] | src[0 + s*3]
uxtb16 r12, r12 @ src[2 + s*2] | src[0 + s*2]
uxtb16 r7, r7 @ src[2 + s*0] | src[0 + s*0]
uxtb16 r11, r11 @ src[2 + s*1] | src[0 + s*1]
pkhbt r10, r1, r8, lsl #16 @ src[1 + s*3] | src[1 + s*1]
pkhtb r1, r8, r1, asr #16 @ src[3 + s*3] | src[3 + s*1]
pkhbt r8, r3, r9, lsl #16 @ src[1 + s*2] | src[1 + s*0]
pkhtb r3, r9, r3, asr #16 @ src[3 + s*2] | src[3 + s*0]
pkhbt r9, r11, lr, lsl #16 @ src[0 + s*3] | src[0 + s*1]
pkhtb r11, lr, r11, asr #16 @ src[2 + s*3] | src[2 + s*1]
pkhbt lr, r7, r12, lsl #16 @ src[0 + s*2] | src[0 + s*0]
pkhtb r7, r12, r7, asr #16 @ src[2 + s*2] | src[2 + s*0]
mov r12, #0x40
smlad r9, r9, r6, r12 @ filter[0][1]
smlad r10, r10, r6, r12 @ filter[1][1]
smlad r11, r11, r6, r12 @ filter[2][1]
smlad r1, r1, r6, r12 @ filter[3][1]
smlad r9, lr, r5, r9 @ filter[0][0]
smlad r10, r8, r5, r10 @ filter[1][0]
smlad r11, r7, r5, r11 @ filter[2][0]
smlad r1, r3, r5, r1 @ filter[3][0]
subs r4, r4, #4
ldr r3, [sp, #48]
sat4 r9, r10, r11, r1
str r9, [r0], #4
bne 1b
ldr r4, [sp, #40]
ldr r12, [sp, #44]
add r2, r2, r3
ldr r9, [sp, #0]
subs r12, r12, #1
sub r2, r2, r4
str r12, [sp, #44]
add r0, r0, r9
bne 1b
pop {r1, r4-r11, pc}
endfunc
function vp8_put_bilin_h_armv6
push {r1, r4-r11, lr}
rsb r5, r12, r12, lsl #16
ldr r12, [sp, #44]
sub r3, r3, r4
add r5, r5, #8
1:
ldrb r6, [r2], #1
ldrb r7, [r2], #1
ldrb r8, [r2], #1
ldrb r9, [r2], #1
ldrb lr, [r2]
pkhbt r6, r6, r7, lsl #16 @ src[1] | src[0]
pkhbt r7, r7, r8, lsl #16 @ src[2] | src[1]
pkhbt r8, r8, r9, lsl #16 @ src[3] | src[2]
pkhbt r9, r9, lr, lsl #16 @ src[4] | src[3]
mov r10, #4
smlad r6, r6, r5, r10
smlad r7, r7, r5, r10
smlad r8, r8, r5, r10
smlad r9, r9, r5, r10
subs r4, r4, #4
asr r6, #3
asr r7, #3
pkhbt r6, r6, r8, lsl #13
pkhbt r7, r7, r9, lsl #13
orr r6, r6, r7, lsl #8
str r6, [r0], #4
bne 1b
ldr r4, [sp, #40]
subs r12, r12, #1
add r2, r2, r3
add r0, r0, r1
bne 1b
pop {r1, r4-r11, pc}
endfunc
function vp8_put_bilin_v_armv6
push {r1, r4-r11, lr}
rsb r5, r12, r12, lsl #16
ldr r12, [sp, #44]
add r5, r5, #8
1:
ldrb r10, [r2, r3]
ldrb r6, [r2], #1
ldrb r11, [r2, r3]
ldrb r7, [r2], #1
ldrb lr, [r2, r3]
ldrb r8, [r2], #1
ldrb r9, [r2, r3]
pkhbt r6, r6, r10, lsl #16
ldrb r10, [r2], #1
pkhbt r7, r7, r11, lsl #16
pkhbt r8, r8, lr, lsl #16
pkhbt r9, r10, r9, lsl #16
mov r10, #4
smlad r6, r6, r5, r10
smlad r7, r7, r5, r10
smlad r8, r8, r5, r10
smlad r9, r9, r5, r10
subs r4, r4, #4
asr r6, #3
asr r7, #3
pkhbt r6, r6, r8, lsl #13
pkhbt r7, r7, r9, lsl #13
orr r6, r6, r7, lsl #8
str r6, [r0], #4
bne 1b
ldr r4, [sp, #40]
subs r12, r12, #1
add r2, r2, r3
add r0, r0, r1
sub r2, r2, r4
bne 1b
pop {r1, r4-r11, pc}
endfunc