ref: e032fc7b9ed95e87d54021ffc9a1b0f6ebda1541
dir: /vp8/common/ppc/variance_subpixel_altivec.asm/
;
; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
;
; Use of this source code is governed by a BSD-style license
; that can be found in the LICENSE file in the root of the source
; tree. An additional intellectual property rights grant can be found
; in the file PATENTS. All contributing project authors may
; be found in the AUTHORS file in the root of the source tree.
;
.globl vp8_sub_pixel_variance4x4_ppc
.globl vp8_sub_pixel_variance8x8_ppc
.globl vp8_sub_pixel_variance8x16_ppc
.globl vp8_sub_pixel_variance16x8_ppc
.globl vp8_sub_pixel_variance16x16_ppc
.macro load_c V, LABEL, OFF, R0, R1
lis \R0, \LABEL@ha
la \R1, \LABEL@l(\R0)
lvx \V, \OFF, \R1
.endm
.macro load_vfilter V0, V1
load_c \V0, vfilter_b, r6, r12, r10
addi r6, r6, 16
lvx \V1, r6, r10
.endm
.macro HProlog jump_label
;# load up horizontal filter
slwi. r5, r5, 4 ;# index into horizontal filter array
;# index to the next set of vectors in the row.
li r10, 16
;# downshift by 7 ( divide by 128 ) at the end
vspltish v19, 7
;# If there isn't any filtering to be done for the horizontal, then
;# just skip to the second pass.
beq \jump_label
load_c v20, hfilter_b, r5, r12, r0
;# setup constants
;# v14 permutation value for alignment
load_c v28, b_hperm_b, 0, r12, r0
;# index to the next set of vectors in the row.
li r12, 32
;# rounding added in on the multiply
vspltisw v21, 8
vspltisw v18, 3
vslw v18, v21, v18 ;# 0x00000040000000400000004000000040
slwi. r6, r6, 5 ;# index into vertical filter array
.endm
;# Filters a horizontal line
;# expects:
;# r3 src_ptr
;# r4 pitch
;# r10 16
;# r12 32
;# v17 perm intput
;# v18 rounding
;# v19 shift
;# v20 filter taps
;# v21 tmp
;# v22 tmp
;# v23 tmp
;# v24 tmp
;# v25 tmp
;# v26 tmp
;# v27 tmp
;# v28 perm output
;#
.macro hfilter_8 V, hp, lp, increment_counter
lvsl v17, 0, r3 ;# permutate value for alignment
;# input to filter is 9 bytes wide, output is 8 bytes.
lvx v21, 0, r3
lvx v22, r10, r3
.if \increment_counter
add r3, r3, r4
.endif
vperm v21, v21, v22, v17
vperm v24, v21, v21, \hp ;# v20 = 0123 1234 2345 3456
vperm v25, v21, v21, \lp ;# v21 = 4567 5678 6789 789A
vmsummbm v24, v20, v24, v18
vmsummbm v25, v20, v25, v18
vpkswus v24, v24, v25 ;# v24 = 0 4 8 C 1 5 9 D (16-bit)
vsrh v24, v24, v19 ;# divide v0, v1 by 128
vpkuhus \V, v24, v24 ;# \V = scrambled 8-bit result
.endm
.macro vfilter_16 P0 P1
vmuleub v22, \P0, v20 ;# 64 + 4 positive taps
vadduhm v22, v18, v22
vmuloub v23, \P0, v20
vadduhm v23, v18, v23
vmuleub v24, \P1, v21
vadduhm v22, v22, v24 ;# Re = evens, saturation unnecessary
vmuloub v25, \P1, v21
vadduhm v23, v23, v25 ;# Ro = odds
vsrh v22, v22, v19 ;# divide by 128
vsrh v23, v23, v19 ;# v16 v17 = evens, odds
vmrghh \P0, v22, v23 ;# v18 v19 = 16-bit result in order
vmrglh v23, v22, v23
vpkuhus \P0, \P0, v23 ;# P0 = 8-bit result
.endm
.macro compute_sum_sse src, ref, sum, sse, t1, t2, z0
;# Compute sum first. Unpack to so signed subract
;# can be used. Only have a half word signed
;# subract. Do high, then low.
vmrghb \t1, \z0, \src
vmrghb \t2, \z0, \ref
vsubshs \t1, \t1, \t2
vsum4shs \sum, \t1, \sum
vmrglb \t1, \z0, \src
vmrglb \t2, \z0, \ref
vsubshs \t1, \t1, \t2
vsum4shs \sum, \t1, \sum
;# Now compute sse.
vsububs \t1, \src, \ref
vsububs \t2, \ref, \src
vor \t1, \t1, \t2
vmsumubm \sse, \t1, \t1, \sse
.endm
.macro variance_final sum, sse, z0, DS
vsumsws \sum, \sum, \z0
vsumsws \sse, \sse, \z0
stvx \sum, 0, r1
lwz r3, 12(r1)
stvx \sse, 0, r1
lwz r4, 12(r1)
stw r4, 0(r9) ;# sse
mullw r3, r3, r3 ;# sum*sum
srlwi r3, r3, \DS ;# (sum*sum) >> 8
subf r3, r3, r4 ;# sse - ((sum*sum) >> 8)
.endm
.macro compute_sum_sse_16 V, increment_counter
load_and_align_16 v16, r7, r8, \increment_counter
compute_sum_sse \V, v16, v18, v19, v20, v21, v23
.endm
.macro load_and_align_16 V, R, P, increment_counter
lvsl v17, 0, \R ;# permutate value for alignment
;# input to filter is 21 bytes wide, output is 16 bytes.
;# input will can span three vectors if not aligned correctly.
lvx v21, 0, \R
lvx v22, r10, \R
.if \increment_counter
add \R, \R, \P
.endif
vperm \V, v21, v22, v17
.endm
.align 2
;# r3 unsigned char *src_ptr
;# r4 int src_pixels_per_line
;# r5 int xoffset
;# r6 int yoffset
;# r7 unsigned char *dst_ptr
;# r8 int dst_pixels_per_line
;# r9 unsigned int *sse
;#
;# r3 return value
vp8_sub_pixel_variance4x4_ppc:
mfspr r11, 256 ;# get old VRSAVE
oris r12, r11, 0xf830
ori r12, r12, 0xfff8
mtspr 256, r12 ;# set VRSAVE
stwu r1,-32(r1) ;# create space on the stack
HProlog second_pass_4x4_pre_copy_b
;# Load up permutation constants
load_c v10, b_0123_b, 0, r12, r0
load_c v11, b_4567_b, 0, r12, r0
hfilter_8 v0, v10, v11, 1
hfilter_8 v1, v10, v11, 1
hfilter_8 v2, v10, v11, 1
hfilter_8 v3, v10, v11, 1
;# Finished filtering main horizontal block. If there is no
;# vertical filtering, jump to storing the data. Otherwise
;# load up and filter the additional line that is needed
;# for the vertical filter.
beq compute_sum_sse_4x4_b
hfilter_8 v4, v10, v11, 0
b second_pass_4x4_b
second_pass_4x4_pre_copy_b:
slwi r6, r6, 5 ;# index into vertical filter array
load_and_align_16 v0, r3, r4, 1
load_and_align_16 v1, r3, r4, 1
load_and_align_16 v2, r3, r4, 1
load_and_align_16 v3, r3, r4, 1
load_and_align_16 v4, r3, r4, 0
second_pass_4x4_b:
vspltish v20, 8
vspltish v18, 3
vslh v18, v20, v18 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
load_vfilter v20, v21
vfilter_16 v0, v1
vfilter_16 v1, v2
vfilter_16 v2, v3
vfilter_16 v3, v4
compute_sum_sse_4x4_b:
vspltish v18, 0 ;# sum
vspltish v19, 0 ;# sse
vspltish v23, 0 ;# unpack
li r10, 16
load_and_align_16 v4, r7, r8, 1
load_and_align_16 v5, r7, r8, 1
load_and_align_16 v6, r7, r8, 1
load_and_align_16 v7, r7, r8, 1
vmrghb v0, v0, v1
vmrghb v1, v2, v3
vmrghb v2, v4, v5
vmrghb v3, v6, v7
load_c v10, b_hilo_b, 0, r12, r0
vperm v0, v0, v1, v10
vperm v1, v2, v3, v10
compute_sum_sse v0, v1, v18, v19, v20, v21, v23
variance_final v18, v19, v23, 4
addi r1, r1, 32 ;# recover stack
mtspr 256, r11 ;# reset old VRSAVE
blr
.align 2
;# r3 unsigned char *src_ptr
;# r4 int src_pixels_per_line
;# r5 int xoffset
;# r6 int yoffset
;# r7 unsigned char *dst_ptr
;# r8 int dst_pixels_per_line
;# r9 unsigned int *sse
;#
;# r3 return value
vp8_sub_pixel_variance8x8_ppc:
mfspr r11, 256 ;# get old VRSAVE
oris r12, r11, 0xfff0
ori r12, r12, 0xffff
mtspr 256, r12 ;# set VRSAVE
stwu r1,-32(r1) ;# create space on the stack
HProlog second_pass_8x8_pre_copy_b
;# Load up permutation constants
load_c v10, b_0123_b, 0, r12, r0
load_c v11, b_4567_b, 0, r12, r0
hfilter_8 v0, v10, v11, 1
hfilter_8 v1, v10, v11, 1
hfilter_8 v2, v10, v11, 1
hfilter_8 v3, v10, v11, 1
hfilter_8 v4, v10, v11, 1
hfilter_8 v5, v10, v11, 1
hfilter_8 v6, v10, v11, 1
hfilter_8 v7, v10, v11, 1
;# Finished filtering main horizontal block. If there is no
;# vertical filtering, jump to storing the data. Otherwise
;# load up and filter the additional line that is needed
;# for the vertical filter.
beq compute_sum_sse_8x8_b
hfilter_8 v8, v10, v11, 0
b second_pass_8x8_b
second_pass_8x8_pre_copy_b:
slwi. r6, r6, 5 ;# index into vertical filter array
load_and_align_16 v0, r3, r4, 1
load_and_align_16 v1, r3, r4, 1
load_and_align_16 v2, r3, r4, 1
load_and_align_16 v3, r3, r4, 1
load_and_align_16 v4, r3, r4, 1
load_and_align_16 v5, r3, r4, 1
load_and_align_16 v6, r3, r4, 1
load_and_align_16 v7, r3, r4, 1
load_and_align_16 v8, r3, r4, 0
beq compute_sum_sse_8x8_b
second_pass_8x8_b:
vspltish v20, 8
vspltish v18, 3
vslh v18, v20, v18 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
load_vfilter v20, v21
vfilter_16 v0, v1
vfilter_16 v1, v2
vfilter_16 v2, v3
vfilter_16 v3, v4
vfilter_16 v4, v5
vfilter_16 v5, v6
vfilter_16 v6, v7
vfilter_16 v7, v8
compute_sum_sse_8x8_b:
vspltish v18, 0 ;# sum
vspltish v19, 0 ;# sse
vspltish v23, 0 ;# unpack
li r10, 16
vmrghb v0, v0, v1
vmrghb v1, v2, v3
vmrghb v2, v4, v5
vmrghb v3, v6, v7
load_and_align_16 v4, r7, r8, 1
load_and_align_16 v5, r7, r8, 1
load_and_align_16 v6, r7, r8, 1
load_and_align_16 v7, r7, r8, 1
load_and_align_16 v8, r7, r8, 1
load_and_align_16 v9, r7, r8, 1
load_and_align_16 v10, r7, r8, 1
load_and_align_16 v11, r7, r8, 0
vmrghb v4, v4, v5
vmrghb v5, v6, v7
vmrghb v6, v8, v9
vmrghb v7, v10, v11
compute_sum_sse v0, v4, v18, v19, v20, v21, v23
compute_sum_sse v1, v5, v18, v19, v20, v21, v23
compute_sum_sse v2, v6, v18, v19, v20, v21, v23
compute_sum_sse v3, v7, v18, v19, v20, v21, v23
variance_final v18, v19, v23, 6
addi r1, r1, 32 ;# recover stack
mtspr 256, r11 ;# reset old VRSAVE
blr
.align 2
;# r3 unsigned char *src_ptr
;# r4 int src_pixels_per_line
;# r5 int xoffset
;# r6 int yoffset
;# r7 unsigned char *dst_ptr
;# r8 int dst_pixels_per_line
;# r9 unsigned int *sse
;#
;# r3 return value
vp8_sub_pixel_variance8x16_ppc:
mfspr r11, 256 ;# get old VRSAVE
oris r12, r11, 0xffff
ori r12, r12, 0xfffc
mtspr 256, r12 ;# set VRSAVE
stwu r1,-32(r1) ;# create space on the stack
HProlog second_pass_8x16_pre_copy_b
;# Load up permutation constants
load_c v29, b_0123_b, 0, r12, r0
load_c v30, b_4567_b, 0, r12, r0
hfilter_8 v0, v29, v30, 1
hfilter_8 v1, v29, v30, 1
hfilter_8 v2, v29, v30, 1
hfilter_8 v3, v29, v30, 1
hfilter_8 v4, v29, v30, 1
hfilter_8 v5, v29, v30, 1
hfilter_8 v6, v29, v30, 1
hfilter_8 v7, v29, v30, 1
hfilter_8 v8, v29, v30, 1
hfilter_8 v9, v29, v30, 1
hfilter_8 v10, v29, v30, 1
hfilter_8 v11, v29, v30, 1
hfilter_8 v12, v29, v30, 1
hfilter_8 v13, v29, v30, 1
hfilter_8 v14, v29, v30, 1
hfilter_8 v15, v29, v30, 1
;# Finished filtering main horizontal block. If there is no
;# vertical filtering, jump to storing the data. Otherwise
;# load up and filter the additional line that is needed
;# for the vertical filter.
beq compute_sum_sse_8x16_b
hfilter_8 v16, v29, v30, 0
b second_pass_8x16_b
second_pass_8x16_pre_copy_b:
slwi. r6, r6, 5 ;# index into vertical filter array
load_and_align_16 v0, r3, r4, 1
load_and_align_16 v1, r3, r4, 1
load_and_align_16 v2, r3, r4, 1
load_and_align_16 v3, r3, r4, 1
load_and_align_16 v4, r3, r4, 1
load_and_align_16 v5, r3, r4, 1
load_and_align_16 v6, r3, r4, 1
load_and_align_16 v7, r3, r4, 1
load_and_align_16 v8, r3, r4, 1
load_and_align_16 v9, r3, r4, 1
load_and_align_16 v10, r3, r4, 1
load_and_align_16 v11, r3, r4, 1
load_and_align_16 v12, r3, r4, 1
load_and_align_16 v13, r3, r4, 1
load_and_align_16 v14, r3, r4, 1
load_and_align_16 v15, r3, r4, 1
load_and_align_16 v16, r3, r4, 0
beq compute_sum_sse_8x16_b
second_pass_8x16_b:
vspltish v20, 8
vspltish v18, 3
vslh v18, v20, v18 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
load_vfilter v20, v21
vfilter_16 v0, v1
vfilter_16 v1, v2
vfilter_16 v2, v3
vfilter_16 v3, v4
vfilter_16 v4, v5
vfilter_16 v5, v6
vfilter_16 v6, v7
vfilter_16 v7, v8
vfilter_16 v8, v9
vfilter_16 v9, v10
vfilter_16 v10, v11
vfilter_16 v11, v12
vfilter_16 v12, v13
vfilter_16 v13, v14
vfilter_16 v14, v15
vfilter_16 v15, v16
compute_sum_sse_8x16_b:
vspltish v18, 0 ;# sum
vspltish v19, 0 ;# sse
vspltish v23, 0 ;# unpack
li r10, 16
vmrghb v0, v0, v1
vmrghb v1, v2, v3
vmrghb v2, v4, v5
vmrghb v3, v6, v7
vmrghb v4, v8, v9
vmrghb v5, v10, v11
vmrghb v6, v12, v13
vmrghb v7, v14, v15
load_and_align_16 v8, r7, r8, 1
load_and_align_16 v9, r7, r8, 1
load_and_align_16 v10, r7, r8, 1
load_and_align_16 v11, r7, r8, 1
load_and_align_16 v12, r7, r8, 1
load_and_align_16 v13, r7, r8, 1
load_and_align_16 v14, r7, r8, 1
load_and_align_16 v15, r7, r8, 1
vmrghb v8, v8, v9
vmrghb v9, v10, v11
vmrghb v10, v12, v13
vmrghb v11, v14, v15
compute_sum_sse v0, v8, v18, v19, v20, v21, v23
compute_sum_sse v1, v9, v18, v19, v20, v21, v23
compute_sum_sse v2, v10, v18, v19, v20, v21, v23
compute_sum_sse v3, v11, v18, v19, v20, v21, v23
load_and_align_16 v8, r7, r8, 1
load_and_align_16 v9, r7, r8, 1
load_and_align_16 v10, r7, r8, 1
load_and_align_16 v11, r7, r8, 1
load_and_align_16 v12, r7, r8, 1
load_and_align_16 v13, r7, r8, 1
load_and_align_16 v14, r7, r8, 1
load_and_align_16 v15, r7, r8, 0
vmrghb v8, v8, v9
vmrghb v9, v10, v11
vmrghb v10, v12, v13
vmrghb v11, v14, v15
compute_sum_sse v4, v8, v18, v19, v20, v21, v23
compute_sum_sse v5, v9, v18, v19, v20, v21, v23
compute_sum_sse v6, v10, v18, v19, v20, v21, v23
compute_sum_sse v7, v11, v18, v19, v20, v21, v23
variance_final v18, v19, v23, 7
addi r1, r1, 32 ;# recover stack
mtspr 256, r11 ;# reset old VRSAVE
blr
;# Filters a horizontal line
;# expects:
;# r3 src_ptr
;# r4 pitch
;# r10 16
;# r12 32
;# v17 perm intput
;# v18 rounding
;# v19 shift
;# v20 filter taps
;# v21 tmp
;# v22 tmp
;# v23 tmp
;# v24 tmp
;# v25 tmp
;# v26 tmp
;# v27 tmp
;# v28 perm output
;#
.macro hfilter_16 V, increment_counter
lvsl v17, 0, r3 ;# permutate value for alignment
;# input to filter is 21 bytes wide, output is 16 bytes.
;# input will can span three vectors if not aligned correctly.
lvx v21, 0, r3
lvx v22, r10, r3
lvx v23, r12, r3
.if \increment_counter
add r3, r3, r4
.endif
vperm v21, v21, v22, v17
vperm v22, v22, v23, v17 ;# v8 v9 = 21 input pixels left-justified
;# set 0
vmsummbm v24, v20, v21, v18 ;# taps times elements
;# set 1
vsldoi v23, v21, v22, 1
vmsummbm v25, v20, v23, v18
;# set 2
vsldoi v23, v21, v22, 2
vmsummbm v26, v20, v23, v18
;# set 3
vsldoi v23, v21, v22, 3
vmsummbm v27, v20, v23, v18
vpkswus v24, v24, v25 ;# v24 = 0 4 8 C 1 5 9 D (16-bit)
vpkswus v25, v26, v27 ;# v25 = 2 6 A E 3 7 B F
vsrh v24, v24, v19 ;# divide v0, v1 by 128
vsrh v25, v25, v19
vpkuhus \V, v24, v25 ;# \V = scrambled 8-bit result
vperm \V, \V, v0, v28 ;# \V = correctly-ordered result
.endm
.align 2
;# r3 unsigned char *src_ptr
;# r4 int src_pixels_per_line
;# r5 int xoffset
;# r6 int yoffset
;# r7 unsigned char *dst_ptr
;# r8 int dst_pixels_per_line
;# r9 unsigned int *sse
;#
;# r3 return value
vp8_sub_pixel_variance16x8_ppc:
mfspr r11, 256 ;# get old VRSAVE
oris r12, r11, 0xffff
ori r12, r12, 0xfff8
mtspr 256, r12 ;# set VRSAVE
stwu r1, -32(r1) ;# create space on the stack
HProlog second_pass_16x8_pre_copy_b
hfilter_16 v0, 1
hfilter_16 v1, 1
hfilter_16 v2, 1
hfilter_16 v3, 1
hfilter_16 v4, 1
hfilter_16 v5, 1
hfilter_16 v6, 1
hfilter_16 v7, 1
;# Finished filtering main horizontal block. If there is no
;# vertical filtering, jump to storing the data. Otherwise
;# load up and filter the additional line that is needed
;# for the vertical filter.
beq compute_sum_sse_16x8_b
hfilter_16 v8, 0
b second_pass_16x8_b
second_pass_16x8_pre_copy_b:
slwi. r6, r6, 5 ;# index into vertical filter array
load_and_align_16 v0, r3, r4, 1
load_and_align_16 v1, r3, r4, 1
load_and_align_16 v2, r3, r4, 1
load_and_align_16 v3, r3, r4, 1
load_and_align_16 v4, r3, r4, 1
load_and_align_16 v5, r3, r4, 1
load_and_align_16 v6, r3, r4, 1
load_and_align_16 v7, r3, r4, 1
load_and_align_16 v8, r3, r4, 1
beq compute_sum_sse_16x8_b
second_pass_16x8_b:
vspltish v20, 8
vspltish v18, 3
vslh v18, v20, v18 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
load_vfilter v20, v21
vfilter_16 v0, v1
vfilter_16 v1, v2
vfilter_16 v2, v3
vfilter_16 v3, v4
vfilter_16 v4, v5
vfilter_16 v5, v6
vfilter_16 v6, v7
vfilter_16 v7, v8
compute_sum_sse_16x8_b:
vspltish v18, 0 ;# sum
vspltish v19, 0 ;# sse
vspltish v23, 0 ;# unpack
li r10, 16
compute_sum_sse_16 v0, 1
compute_sum_sse_16 v1, 1
compute_sum_sse_16 v2, 1
compute_sum_sse_16 v3, 1
compute_sum_sse_16 v4, 1
compute_sum_sse_16 v5, 1
compute_sum_sse_16 v6, 1
compute_sum_sse_16 v7, 0
variance_final v18, v19, v23, 7
addi r1, r1, 32 ;# recover stack
mtspr 256, r11 ;# reset old VRSAVE
blr
.align 2
;# r3 unsigned char *src_ptr
;# r4 int src_pixels_per_line
;# r5 int xoffset
;# r6 int yoffset
;# r7 unsigned char *dst_ptr
;# r8 int dst_pixels_per_line
;# r9 unsigned int *sse
;#
;# r3 return value
vp8_sub_pixel_variance16x16_ppc:
mfspr r11, 256 ;# get old VRSAVE
oris r12, r11, 0xffff
ori r12, r12, 0xfff8
mtspr 256, r12 ;# set VRSAVE
stwu r1, -32(r1) ;# create space on the stack
HProlog second_pass_16x16_pre_copy_b
hfilter_16 v0, 1
hfilter_16 v1, 1
hfilter_16 v2, 1
hfilter_16 v3, 1
hfilter_16 v4, 1
hfilter_16 v5, 1
hfilter_16 v6, 1
hfilter_16 v7, 1
hfilter_16 v8, 1
hfilter_16 v9, 1
hfilter_16 v10, 1
hfilter_16 v11, 1
hfilter_16 v12, 1
hfilter_16 v13, 1
hfilter_16 v14, 1
hfilter_16 v15, 1
;# Finished filtering main horizontal block. If there is no
;# vertical filtering, jump to storing the data. Otherwise
;# load up and filter the additional line that is needed
;# for the vertical filter.
beq compute_sum_sse_16x16_b
hfilter_16 v16, 0
b second_pass_16x16_b
second_pass_16x16_pre_copy_b:
slwi. r6, r6, 5 ;# index into vertical filter array
load_and_align_16 v0, r3, r4, 1
load_and_align_16 v1, r3, r4, 1
load_and_align_16 v2, r3, r4, 1
load_and_align_16 v3, r3, r4, 1
load_and_align_16 v4, r3, r4, 1
load_and_align_16 v5, r3, r4, 1
load_and_align_16 v6, r3, r4, 1
load_and_align_16 v7, r3, r4, 1
load_and_align_16 v8, r3, r4, 1
load_and_align_16 v9, r3, r4, 1
load_and_align_16 v10, r3, r4, 1
load_and_align_16 v11, r3, r4, 1
load_and_align_16 v12, r3, r4, 1
load_and_align_16 v13, r3, r4, 1
load_and_align_16 v14, r3, r4, 1
load_and_align_16 v15, r3, r4, 1
load_and_align_16 v16, r3, r4, 0
beq compute_sum_sse_16x16_b
second_pass_16x16_b:
vspltish v20, 8
vspltish v18, 3
vslh v18, v20, v18 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
load_vfilter v20, v21
vfilter_16 v0, v1
vfilter_16 v1, v2
vfilter_16 v2, v3
vfilter_16 v3, v4
vfilter_16 v4, v5
vfilter_16 v5, v6
vfilter_16 v6, v7
vfilter_16 v7, v8
vfilter_16 v8, v9
vfilter_16 v9, v10
vfilter_16 v10, v11
vfilter_16 v11, v12
vfilter_16 v12, v13
vfilter_16 v13, v14
vfilter_16 v14, v15
vfilter_16 v15, v16
compute_sum_sse_16x16_b:
vspltish v18, 0 ;# sum
vspltish v19, 0 ;# sse
vspltish v23, 0 ;# unpack
li r10, 16
compute_sum_sse_16 v0, 1
compute_sum_sse_16 v1, 1
compute_sum_sse_16 v2, 1
compute_sum_sse_16 v3, 1
compute_sum_sse_16 v4, 1
compute_sum_sse_16 v5, 1
compute_sum_sse_16 v6, 1
compute_sum_sse_16 v7, 1
compute_sum_sse_16 v8, 1
compute_sum_sse_16 v9, 1
compute_sum_sse_16 v10, 1
compute_sum_sse_16 v11, 1
compute_sum_sse_16 v12, 1
compute_sum_sse_16 v13, 1
compute_sum_sse_16 v14, 1
compute_sum_sse_16 v15, 0
variance_final v18, v19, v23, 8
addi r1, r1, 32 ;# recover stack
mtspr 256, r11 ;# reset old VRSAVE
blr
.data
.align 4
hfilter_b:
.byte 128, 0, 0, 0,128, 0, 0, 0,128, 0, 0, 0,128, 0, 0, 0
.byte 112, 16, 0, 0,112, 16, 0, 0,112, 16, 0, 0,112, 16, 0, 0
.byte 96, 32, 0, 0, 96, 32, 0, 0, 96, 32, 0, 0, 96, 32, 0, 0
.byte 80, 48, 0, 0, 80, 48, 0, 0, 80, 48, 0, 0, 80, 48, 0, 0
.byte 64, 64, 0, 0, 64, 64, 0, 0, 64, 64, 0, 0, 64, 64, 0, 0
.byte 48, 80, 0, 0, 48, 80, 0, 0, 48, 80, 0, 0, 48, 80, 0, 0
.byte 32, 96, 0, 0, 32, 96, 0, 0, 32, 96, 0, 0, 32, 96, 0, 0
.byte 16,112, 0, 0, 16,112, 0, 0, 16,112, 0, 0, 16,112, 0, 0
.align 4
vfilter_b:
.byte 128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128
.byte 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
.byte 112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112
.byte 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
.byte 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96
.byte 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32
.byte 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80
.byte 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48
.byte 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
.byte 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64
.byte 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48
.byte 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80
.byte 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32
.byte 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96
.byte 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16
.byte 112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112
.align 4
b_hperm_b:
.byte 0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15
.align 4
b_0123_b:
.byte 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6
.align 4
b_4567_b:
.byte 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10
b_hilo_b:
.byte 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23