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Unified Diff: source/libvpx/vp8/common/ppc/variance_subpixel_altivec.asm

Issue 1124333011: libvpx: Pull from upstream (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libvpx.git@master
Patch Set: only update to last nights LKGR Created 5 years, 7 months ago
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Index: source/libvpx/vp8/common/ppc/variance_subpixel_altivec.asm
diff --git a/source/libvpx/vp8/common/ppc/variance_subpixel_altivec.asm b/source/libvpx/vp8/common/ppc/variance_subpixel_altivec.asm
deleted file mode 100644
index 2308373a1d2d1df748a7112e37c8d44ef27f11f1..0000000000000000000000000000000000000000
--- a/source/libvpx/vp8/common/ppc/variance_subpixel_altivec.asm
+++ /dev/null
@@ -1,865 +0,0 @@
-;
-; 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
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