| Index: source/libvpx/vp8/common/ppc/filter_altivec.asm
|
| diff --git a/source/libvpx/vp8/common/ppc/filter_altivec.asm b/source/libvpx/vp8/common/ppc/filter_altivec.asm
|
| deleted file mode 100644
|
| index 4da2e94f959d7481fa5b7e0798332ad34185b74a..0000000000000000000000000000000000000000
|
| --- a/source/libvpx/vp8/common/ppc/filter_altivec.asm
|
| +++ /dev/null
|
| @@ -1,1013 +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 sixtap_predict_ppc
|
| - .globl sixtap_predict8x4_ppc
|
| - .globl sixtap_predict8x8_ppc
|
| - .globl sixtap_predict16x16_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_hfilter V0, V1
|
| - load_c \V0, HFilter, r5, r9, r10
|
| -
|
| - addi r5, r5, 16
|
| - lvx \V1, r5, r10
|
| -.endm
|
| -
|
| -;# Vertical filtering
|
| -.macro Vprolog
|
| - load_c v0, VFilter, r6, r3, r10
|
| -
|
| - vspltish v5, 8
|
| - vspltish v6, 3
|
| - vslh v6, v5, v6 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
|
| -
|
| - vspltb v1, v0, 1
|
| - vspltb v2, v0, 2
|
| - vspltb v3, v0, 3
|
| - vspltb v4, v0, 4
|
| - vspltb v5, v0, 5
|
| - vspltb v0, v0, 0
|
| -.endm
|
| -
|
| -.macro vpre_load
|
| - Vprolog
|
| - li r10, 16
|
| - lvx v10, 0, r9 ;# v10..v14 = first 5 rows
|
| - lvx v11, r10, r9
|
| - addi r9, r9, 32
|
| - lvx v12, 0, r9
|
| - lvx v13, r10, r9
|
| - addi r9, r9, 32
|
| - lvx v14, 0, r9
|
| -.endm
|
| -
|
| -.macro Msum Re, Ro, V, T, TMP
|
| - ;# (Re,Ro) += (V*T)
|
| - vmuleub \TMP, \V, \T ;# trashes v8
|
| - vadduhm \Re, \Re, \TMP ;# Re = evens, saturation unnecessary
|
| - vmuloub \TMP, \V, \T
|
| - vadduhm \Ro, \Ro, \TMP ;# Ro = odds
|
| -.endm
|
| -
|
| -.macro vinterp_no_store P0 P1 P2 P3 P4 P5
|
| - vmuleub v8, \P0, v0 ;# 64 + 4 positive taps
|
| - vadduhm v16, v6, v8
|
| - vmuloub v8, \P0, v0
|
| - vadduhm v17, v6, v8
|
| - Msum v16, v17, \P2, v2, v8
|
| - Msum v16, v17, \P3, v3, v8
|
| - Msum v16, v17, \P5, v5, v8
|
| -
|
| - vmuleub v18, \P1, v1 ;# 2 negative taps
|
| - vmuloub v19, \P1, v1
|
| - Msum v18, v19, \P4, v4, v8
|
| -
|
| - vsubuhs v16, v16, v18 ;# subtract neg from pos
|
| - vsubuhs v17, v17, v19
|
| - vsrh v16, v16, v7 ;# divide by 128
|
| - vsrh v17, v17, v7 ;# v16 v17 = evens, odds
|
| - vmrghh v18, v16, v17 ;# v18 v19 = 16-bit result in order
|
| - vmrglh v19, v16, v17
|
| - vpkuhus \P0, v18, v19 ;# P0 = 8-bit result
|
| -.endm
|
| -
|
| -.macro vinterp_no_store_8x8 P0 P1 P2 P3 P4 P5
|
| - vmuleub v24, \P0, v13 ;# 64 + 4 positive taps
|
| - vadduhm v21, v20, v24
|
| - vmuloub v24, \P0, v13
|
| - vadduhm v22, v20, v24
|
| - Msum v21, v22, \P2, v15, v25
|
| - Msum v21, v22, \P3, v16, v25
|
| - Msum v21, v22, \P5, v18, v25
|
| -
|
| - vmuleub v23, \P1, v14 ;# 2 negative taps
|
| - vmuloub v24, \P1, v14
|
| - Msum v23, v24, \P4, v17, v25
|
| -
|
| - vsubuhs v21, v21, v23 ;# subtract neg from pos
|
| - vsubuhs v22, v22, v24
|
| - vsrh v21, v21, v19 ;# divide by 128
|
| - vsrh v22, v22, v19 ;# v16 v17 = evens, odds
|
| - vmrghh v23, v21, v22 ;# v18 v19 = 16-bit result in order
|
| - vmrglh v24, v21, v22
|
| - vpkuhus \P0, v23, v24 ;# P0 = 8-bit result
|
| -.endm
|
| -
|
| -
|
| -.macro Vinterp P0 P1 P2 P3 P4 P5
|
| - vinterp_no_store \P0, \P1, \P2, \P3, \P4, \P5
|
| - stvx \P0, 0, r7
|
| - add r7, r7, r8 ;# 33 ops per 16 pels
|
| -.endm
|
| -
|
| -
|
| -.macro luma_v P0, P1, P2, P3, P4, P5
|
| - addi r9, r9, 16 ;# P5 = newest input row
|
| - lvx \P5, 0, r9
|
| - Vinterp \P0, \P1, \P2, \P3, \P4, \P5
|
| -.endm
|
| -
|
| -.macro luma_vtwo
|
| - luma_v v10, v11, v12, v13, v14, v15
|
| - luma_v v11, v12, v13, v14, v15, v10
|
| -.endm
|
| -
|
| -.macro luma_vfour
|
| - luma_vtwo
|
| - luma_v v12, v13, v14, v15, v10, v11
|
| - luma_v v13, v14, v15, v10, v11, v12
|
| -.endm
|
| -
|
| -.macro luma_vsix
|
| - luma_vfour
|
| - luma_v v14, v15, v10, v11, v12, v13
|
| - luma_v v15, v10, v11, v12, v13, v14
|
| -.endm
|
| -
|
| -.macro Interp4 R I I4
|
| - vmsummbm \R, v13, \I, v15
|
| - vmsummbm \R, v14, \I4, \R
|
| -.endm
|
| -
|
| -.macro Read8x8 VD, RS, RP, increment_counter
|
| - lvsl v21, 0, \RS ;# 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 \VD, 0, \RS
|
| - lvx v20, r10, \RS
|
| -
|
| -.if \increment_counter
|
| - add \RS, \RS, \RP
|
| -.endif
|
| -
|
| - vperm \VD, \VD, v20, v21
|
| -.endm
|
| -
|
| -.macro interp_8x8 R
|
| - vperm v20, \R, \R, v16 ;# v20 = 0123 1234 2345 3456
|
| - vperm v21, \R, \R, v17 ;# v21 = 4567 5678 6789 789A
|
| - Interp4 v20, v20, v21 ;# v20 = result 0 1 2 3
|
| - vperm \R, \R, \R, v18 ;# R = 89AB 9ABC ABCx BCxx
|
| - Interp4 v21, v21, \R ;# v21 = result 4 5 6 7
|
| -
|
| - vpkswus \R, v20, v21 ;# R = 0 1 2 3 4 5 6 7
|
| - vsrh \R, \R, v19
|
| -
|
| - vpkuhus \R, \R, \R ;# saturate and pack
|
| -
|
| -.endm
|
| -
|
| -.macro Read4x4 VD, RS, RP, increment_counter
|
| - lvsl v21, 0, \RS ;# 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 v20, 0, \RS
|
| -
|
| -.if \increment_counter
|
| - add \RS, \RS, \RP
|
| -.endif
|
| -
|
| - vperm \VD, v20, v20, v21
|
| -.endm
|
| - .text
|
| -
|
| - .align 2
|
| -;# r3 unsigned char * src
|
| -;# r4 int src_pitch
|
| -;# r5 int x_offset
|
| -;# r6 int y_offset
|
| -;# r7 unsigned char * dst
|
| -;# r8 int dst_pitch
|
| -sixtap_predict_ppc:
|
| - mfspr r11, 256 ;# get old VRSAVE
|
| - oris r12, r11, 0xff87
|
| - ori r12, r12, 0xffc0
|
| - mtspr 256, r12 ;# set VRSAVE
|
| -
|
| - stwu r1,-32(r1) ;# create space on the stack
|
| -
|
| - slwi. r5, r5, 5 ;# index into horizontal filter array
|
| -
|
| - vspltish v19, 7
|
| -
|
| - ;# If there isn't any filtering to be done for the horizontal, then
|
| - ;# just skip to the second pass.
|
| - beq- vertical_only_4x4
|
| -
|
| - ;# load up horizontal filter
|
| - load_hfilter v13, v14
|
| -
|
| - ;# rounding added in on the multiply
|
| - vspltisw v16, 8
|
| - vspltisw v15, 3
|
| - vslw v15, v16, v15 ;# 0x00000040000000400000004000000040
|
| -
|
| - ;# Load up permutation constants
|
| - load_c v16, B_0123, 0, r9, r10
|
| - load_c v17, B_4567, 0, r9, r10
|
| - load_c v18, B_89AB, 0, r9, r10
|
| -
|
| - ;# Back off input buffer by 2 bytes. Need 2 before and 3 after
|
| - addi r3, r3, -2
|
| -
|
| - addi r9, r3, 0
|
| - li r10, 16
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| -
|
| - slwi. r6, r6, 4 ;# index into vertical filter array
|
| -
|
| - ;# filter a line
|
| - interp_8x8 v2
|
| - interp_8x8 v3
|
| - interp_8x8 v4
|
| - interp_8x8 v5
|
| -
|
| - ;# Finished filtering main horizontal block. If there is no
|
| - ;# vertical filtering, jump to storing the data. Otherwise
|
| - ;# load up and filter the additional 5 lines that are needed
|
| - ;# for the vertical filter.
|
| - beq- store_4x4
|
| -
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r9, r9, r4
|
| - sub r9, r9, r4
|
| -
|
| - Read8x8 v0, r9, r4, 1
|
| - Read8x8 v1, r9, r4, 0
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 0
|
| -
|
| - interp_8x8 v0
|
| - interp_8x8 v1
|
| - interp_8x8 v6
|
| - interp_8x8 v7
|
| - interp_8x8 v8
|
| -
|
| - b second_pass_4x4
|
| -
|
| -vertical_only_4x4:
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r3, r3, r4
|
| - sub r3, r3, r4
|
| - li r10, 16
|
| -
|
| - Read8x8 v0, r3, r4, 1
|
| - Read8x8 v1, r3, r4, 1
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 0
|
| -
|
| - slwi r6, r6, 4 ;# index into vertical filter array
|
| -
|
| -second_pass_4x4:
|
| - load_c v20, b_hilo_4x4, 0, r9, r10
|
| - load_c v21, b_hilo, 0, r9, r10
|
| -
|
| - ;# reposition input so that it can go through the
|
| - ;# filtering phase with one pass.
|
| - vperm v0, v0, v1, v20 ;# 0 1 x x
|
| - vperm v2, v2, v3, v20 ;# 2 3 x x
|
| - vperm v4, v4, v5, v20 ;# 4 5 x x
|
| - vperm v6, v6, v7, v20 ;# 6 7 x x
|
| -
|
| - vperm v0, v0, v2, v21 ;# 0 1 2 3
|
| - vperm v4, v4, v6, v21 ;# 4 5 6 7
|
| -
|
| - vsldoi v1, v0, v4, 4
|
| - vsldoi v2, v0, v4, 8
|
| - vsldoi v3, v0, v4, 12
|
| -
|
| - vsldoi v5, v4, v8, 4
|
| -
|
| - load_c v13, VFilter, r6, r9, r10
|
| -
|
| - vspltish v15, 8
|
| - vspltish v20, 3
|
| - vslh v20, v15, v20 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
|
| -
|
| - vspltb v14, v13, 1
|
| - vspltb v15, v13, 2
|
| - vspltb v16, v13, 3
|
| - vspltb v17, v13, 4
|
| - vspltb v18, v13, 5
|
| - vspltb v13, v13, 0
|
| -
|
| - vinterp_no_store_8x8 v0, v1, v2, v3, v4, v5
|
| -
|
| - stvx v0, 0, r1
|
| -
|
| - lwz r0, 0(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - lwz r0, 4(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - lwz r0, 8(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - lwz r0, 12(r1)
|
| - stw r0, 0(r7)
|
| -
|
| - b exit_4x4
|
| -
|
| -store_4x4:
|
| -
|
| - stvx v2, 0, r1
|
| - lwz r0, 0(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - stvx v3, 0, r1
|
| - lwz r0, 0(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - stvx v4, 0, r1
|
| - lwz r0, 0(r1)
|
| - stw r0, 0(r7)
|
| - add r7, r7, r8
|
| -
|
| - stvx v5, 0, r1
|
| - lwz r0, 0(r1)
|
| - stw r0, 0(r7)
|
| -
|
| -exit_4x4:
|
| -
|
| - addi r1, r1, 32 ;# recover stack
|
| -
|
| - mtspr 256, r11 ;# reset old VRSAVE
|
| -
|
| - blr
|
| -
|
| -.macro w_8x8 V, D, R, P
|
| - stvx \V, 0, r1
|
| - lwz \R, 0(r1)
|
| - stw \R, 0(r7)
|
| - lwz \R, 4(r1)
|
| - stw \R, 4(r7)
|
| - add \D, \D, \P
|
| -.endm
|
| -
|
| - .align 2
|
| -;# r3 unsigned char * src
|
| -;# r4 int src_pitch
|
| -;# r5 int x_offset
|
| -;# r6 int y_offset
|
| -;# r7 unsigned char * dst
|
| -;# r8 int dst_pitch
|
| -
|
| -sixtap_predict8x4_ppc:
|
| - mfspr r11, 256 ;# get old VRSAVE
|
| - oris r12, r11, 0xffff
|
| - ori r12, r12, 0xffc0
|
| - mtspr 256, r12 ;# set VRSAVE
|
| -
|
| - stwu r1,-32(r1) ;# create space on the stack
|
| -
|
| - slwi. r5, r5, 5 ;# index into horizontal filter array
|
| -
|
| - vspltish v19, 7
|
| -
|
| - ;# If there isn't any filtering to be done for the horizontal, then
|
| - ;# just skip to the second pass.
|
| - beq- second_pass_pre_copy_8x4
|
| -
|
| - load_hfilter v13, v14
|
| -
|
| - ;# rounding added in on the multiply
|
| - vspltisw v16, 8
|
| - vspltisw v15, 3
|
| - vslw v15, v16, v15 ;# 0x00000040000000400000004000000040
|
| -
|
| - ;# Load up permutation constants
|
| - load_c v16, B_0123, 0, r9, r10
|
| - load_c v17, B_4567, 0, r9, r10
|
| - load_c v18, B_89AB, 0, r9, r10
|
| -
|
| - ;# Back off input buffer by 2 bytes. Need 2 before and 3 after
|
| - addi r3, r3, -2
|
| -
|
| - addi r9, r3, 0
|
| - li r10, 16
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| -
|
| - slwi. r6, r6, 4 ;# index into vertical filter array
|
| -
|
| - ;# filter a line
|
| - interp_8x8 v2
|
| - interp_8x8 v3
|
| - interp_8x8 v4
|
| - interp_8x8 v5
|
| -
|
| - ;# Finished filtering main horizontal block. If there is no
|
| - ;# vertical filtering, jump to storing the data. Otherwise
|
| - ;# load up and filter the additional 5 lines that are needed
|
| - ;# for the vertical filter.
|
| - beq- store_8x4
|
| -
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r9, r9, r4
|
| - sub r9, r9, r4
|
| -
|
| - Read8x8 v0, r9, r4, 1
|
| - Read8x8 v1, r9, r4, 0
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 0
|
| -
|
| - interp_8x8 v0
|
| - interp_8x8 v1
|
| - interp_8x8 v6
|
| - interp_8x8 v7
|
| - interp_8x8 v8
|
| -
|
| - b second_pass_8x4
|
| -
|
| -second_pass_pre_copy_8x4:
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r3, r3, r4
|
| - sub r3, r3, r4
|
| - li r10, 16
|
| -
|
| - Read8x8 v0, r3, r4, 1
|
| - Read8x8 v1, r3, r4, 1
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 1
|
| -
|
| - slwi r6, r6, 4 ;# index into vertical filter array
|
| -
|
| -second_pass_8x4:
|
| - load_c v13, VFilter, r6, r9, r10
|
| -
|
| - vspltish v15, 8
|
| - vspltish v20, 3
|
| - vslh v20, v15, v20 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
|
| -
|
| - vspltb v14, v13, 1
|
| - vspltb v15, v13, 2
|
| - vspltb v16, v13, 3
|
| - vspltb v17, v13, 4
|
| - vspltb v18, v13, 5
|
| - vspltb v13, v13, 0
|
| -
|
| - vinterp_no_store_8x8 v0, v1, v2, v3, v4, v5
|
| - vinterp_no_store_8x8 v1, v2, v3, v4, v5, v6
|
| - vinterp_no_store_8x8 v2, v3, v4, v5, v6, v7
|
| - vinterp_no_store_8x8 v3, v4, v5, v6, v7, v8
|
| -
|
| - cmpi cr0, r8, 8
|
| - beq cr0, store_aligned_8x4
|
| -
|
| - w_8x8 v0, r7, r0, r8
|
| - w_8x8 v1, r7, r0, r8
|
| - w_8x8 v2, r7, r0, r8
|
| - w_8x8 v3, r7, r0, r8
|
| -
|
| - b exit_8x4
|
| -
|
| -store_aligned_8x4:
|
| -
|
| - load_c v10, b_hilo, 0, r9, r10
|
| -
|
| - vperm v0, v0, v1, v10
|
| - vperm v2, v2, v3, v10
|
| -
|
| - stvx v0, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v2, 0, r7
|
| -
|
| - b exit_8x4
|
| -
|
| -store_8x4:
|
| - cmpi cr0, r8, 8
|
| - beq cr0, store_aligned2_8x4
|
| -
|
| - w_8x8 v2, r7, r0, r8
|
| - w_8x8 v3, r7, r0, r8
|
| - w_8x8 v4, r7, r0, r8
|
| - w_8x8 v5, r7, r0, r8
|
| -
|
| - b exit_8x4
|
| -
|
| -store_aligned2_8x4:
|
| - load_c v10, b_hilo, 0, r9, r10
|
| -
|
| - vperm v2, v2, v3, v10
|
| - vperm v4, v4, v5, v10
|
| -
|
| - stvx v2, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v4, 0, r7
|
| -
|
| -exit_8x4:
|
| -
|
| - addi r1, r1, 32 ;# recover stack
|
| -
|
| - mtspr 256, r11 ;# reset old VRSAVE
|
| -
|
| -
|
| - blr
|
| -
|
| - .align 2
|
| -;# r3 unsigned char * src
|
| -;# r4 int src_pitch
|
| -;# r5 int x_offset
|
| -;# r6 int y_offset
|
| -;# r7 unsigned char * dst
|
| -;# r8 int dst_pitch
|
| -
|
| -;# Because the width that needs to be filtered will fit in a single altivec
|
| -;# register there is no need to loop. Everything can stay in registers.
|
| -sixtap_predict8x8_ppc:
|
| - mfspr r11, 256 ;# get old VRSAVE
|
| - oris r12, r11, 0xffff
|
| - ori r12, r12, 0xffc0
|
| - mtspr 256, r12 ;# set VRSAVE
|
| -
|
| - stwu r1,-32(r1) ;# create space on the stack
|
| -
|
| - slwi. r5, r5, 5 ;# index into horizontal filter array
|
| -
|
| - vspltish v19, 7
|
| -
|
| - ;# If there isn't any filtering to be done for the horizontal, then
|
| - ;# just skip to the second pass.
|
| - beq- second_pass_pre_copy_8x8
|
| -
|
| - load_hfilter v13, v14
|
| -
|
| - ;# rounding added in on the multiply
|
| - vspltisw v16, 8
|
| - vspltisw v15, 3
|
| - vslw v15, v16, v15 ;# 0x00000040000000400000004000000040
|
| -
|
| - ;# Load up permutation constants
|
| - load_c v16, B_0123, 0, r9, r10
|
| - load_c v17, B_4567, 0, r9, r10
|
| - load_c v18, B_89AB, 0, r9, r10
|
| -
|
| - ;# Back off input buffer by 2 bytes. Need 2 before and 3 after
|
| - addi r3, r3, -2
|
| -
|
| - addi r9, r3, 0
|
| - li r10, 16
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 1
|
| - Read8x8 v9, r3, r4, 1
|
| -
|
| - slwi. r6, r6, 4 ;# index into vertical filter array
|
| -
|
| - ;# filter a line
|
| - interp_8x8 v2
|
| - interp_8x8 v3
|
| - interp_8x8 v4
|
| - interp_8x8 v5
|
| - interp_8x8 v6
|
| - interp_8x8 v7
|
| - interp_8x8 v8
|
| - interp_8x8 v9
|
| -
|
| - ;# Finished filtering main horizontal block. If there is no
|
| - ;# vertical filtering, jump to storing the data. Otherwise
|
| - ;# load up and filter the additional 5 lines that are needed
|
| - ;# for the vertical filter.
|
| - beq- store_8x8
|
| -
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r9, r9, r4
|
| - sub r9, r9, r4
|
| -
|
| - Read8x8 v0, r9, r4, 1
|
| - Read8x8 v1, r9, r4, 0
|
| - Read8x8 v10, r3, r4, 1
|
| - Read8x8 v11, r3, r4, 1
|
| - Read8x8 v12, r3, r4, 0
|
| -
|
| - interp_8x8 v0
|
| - interp_8x8 v1
|
| - interp_8x8 v10
|
| - interp_8x8 v11
|
| - interp_8x8 v12
|
| -
|
| - b second_pass_8x8
|
| -
|
| -second_pass_pre_copy_8x8:
|
| - ;# only needed if there is a vertical filter present
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r3, r3, r4
|
| - sub r3, r3, r4
|
| - li r10, 16
|
| -
|
| - Read8x8 v0, r3, r4, 1
|
| - Read8x8 v1, r3, r4, 1
|
| - Read8x8 v2, r3, r4, 1
|
| - Read8x8 v3, r3, r4, 1
|
| - Read8x8 v4, r3, r4, 1
|
| - Read8x8 v5, r3, r4, 1
|
| - Read8x8 v6, r3, r4, 1
|
| - Read8x8 v7, r3, r4, 1
|
| - Read8x8 v8, r3, r4, 1
|
| - Read8x8 v9, r3, r4, 1
|
| - Read8x8 v10, r3, r4, 1
|
| - Read8x8 v11, r3, r4, 1
|
| - Read8x8 v12, r3, r4, 0
|
| -
|
| - slwi r6, r6, 4 ;# index into vertical filter array
|
| -
|
| -second_pass_8x8:
|
| - load_c v13, VFilter, r6, r9, r10
|
| -
|
| - vspltish v15, 8
|
| - vspltish v20, 3
|
| - vslh v20, v15, v20 ;# 0x0040 0040 0040 0040 0040 0040 0040 0040
|
| -
|
| - vspltb v14, v13, 1
|
| - vspltb v15, v13, 2
|
| - vspltb v16, v13, 3
|
| - vspltb v17, v13, 4
|
| - vspltb v18, v13, 5
|
| - vspltb v13, v13, 0
|
| -
|
| - vinterp_no_store_8x8 v0, v1, v2, v3, v4, v5
|
| - vinterp_no_store_8x8 v1, v2, v3, v4, v5, v6
|
| - vinterp_no_store_8x8 v2, v3, v4, v5, v6, v7
|
| - vinterp_no_store_8x8 v3, v4, v5, v6, v7, v8
|
| - vinterp_no_store_8x8 v4, v5, v6, v7, v8, v9
|
| - vinterp_no_store_8x8 v5, v6, v7, v8, v9, v10
|
| - vinterp_no_store_8x8 v6, v7, v8, v9, v10, v11
|
| - vinterp_no_store_8x8 v7, v8, v9, v10, v11, v12
|
| -
|
| - cmpi cr0, r8, 8
|
| - beq cr0, store_aligned_8x8
|
| -
|
| - w_8x8 v0, r7, r0, r8
|
| - w_8x8 v1, r7, r0, r8
|
| - w_8x8 v2, r7, r0, r8
|
| - w_8x8 v3, r7, r0, r8
|
| - w_8x8 v4, r7, r0, r8
|
| - w_8x8 v5, r7, r0, r8
|
| - w_8x8 v6, r7, r0, r8
|
| - w_8x8 v7, r7, r0, r8
|
| -
|
| - b exit_8x8
|
| -
|
| -store_aligned_8x8:
|
| -
|
| - load_c v10, b_hilo, 0, r9, r10
|
| -
|
| - vperm v0, v0, v1, v10
|
| - vperm v2, v2, v3, v10
|
| - vperm v4, v4, v5, v10
|
| - vperm v6, v6, v7, v10
|
| -
|
| - stvx v0, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v2, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v4, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v6, 0, r7
|
| -
|
| - b exit_8x8
|
| -
|
| -store_8x8:
|
| - cmpi cr0, r8, 8
|
| - beq cr0, store_aligned2_8x8
|
| -
|
| - w_8x8 v2, r7, r0, r8
|
| - w_8x8 v3, r7, r0, r8
|
| - w_8x8 v4, r7, r0, r8
|
| - w_8x8 v5, r7, r0, r8
|
| - w_8x8 v6, r7, r0, r8
|
| - w_8x8 v7, r7, r0, r8
|
| - w_8x8 v8, r7, r0, r8
|
| - w_8x8 v9, r7, r0, r8
|
| -
|
| - b exit_8x8
|
| -
|
| -store_aligned2_8x8:
|
| - load_c v10, b_hilo, 0, r9, r10
|
| -
|
| - vperm v2, v2, v3, v10
|
| - vperm v4, v4, v5, v10
|
| - vperm v6, v6, v7, v10
|
| - vperm v8, v8, v9, v10
|
| -
|
| - stvx v2, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v4, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v6, 0, r7
|
| - addi r7, r7, 16
|
| - stvx v8, 0, r7
|
| -
|
| -exit_8x8:
|
| -
|
| - addi r1, r1, 32 ;# recover stack
|
| -
|
| - mtspr 256, r11 ;# reset old VRSAVE
|
| -
|
| - blr
|
| -
|
| - .align 2
|
| -;# r3 unsigned char * src
|
| -;# r4 int src_pitch
|
| -;# r5 int x_offset
|
| -;# r6 int y_offset
|
| -;# r7 unsigned char * dst
|
| -;# r8 int dst_pitch
|
| -
|
| -;# Two pass filtering. First pass is Horizontal edges, second pass is vertical
|
| -;# edges. One of the filters can be null, but both won't be. Needs to use a
|
| -;# temporary buffer because the source buffer can't be modified and the buffer
|
| -;# for the destination is not large enough to hold the temporary data.
|
| -sixtap_predict16x16_ppc:
|
| - mfspr r11, 256 ;# get old VRSAVE
|
| - oris r12, r11, 0xffff
|
| - ori r12, r12, 0xf000
|
| - mtspr 256, r12 ;# set VRSAVE
|
| -
|
| - stwu r1,-416(r1) ;# create space on the stack
|
| -
|
| - ;# Three possiblities
|
| - ;# 1. First filter is null. Don't use a temp buffer.
|
| - ;# 2. Second filter is null. Don't use a temp buffer.
|
| - ;# 3. Neither are null, use temp buffer.
|
| -
|
| - ;# First Pass (horizontal edge)
|
| - ;# setup pointers for src
|
| - ;# if possiblity (1) then setup the src pointer to be the orginal and jump
|
| - ;# to second pass. this is based on if x_offset is 0.
|
| -
|
| - ;# load up horizontal filter
|
| - slwi. r5, r5, 5 ;# index into horizontal filter array
|
| -
|
| - load_hfilter v4, v5
|
| -
|
| - beq- copy_horizontal_16x21
|
| -
|
| - ;# Back off input buffer by 2 bytes. Need 2 before and 3 after
|
| - addi r3, r3, -2
|
| -
|
| - slwi. r6, r6, 4 ;# index into vertical filter array
|
| -
|
| - ;# setup constants
|
| - ;# v14 permutation value for alignment
|
| - load_c v14, b_hperm, 0, r9, r10
|
| -
|
| - ;# These statements are guessing that there won't be a second pass,
|
| - ;# but if there is then inside the bypass they need to be set
|
| - li r0, 16 ;# prepare for no vertical filter
|
| -
|
| - ;# Change the output pointer and pitch to be the actual
|
| - ;# desination instead of a temporary buffer.
|
| - addi r9, r7, 0
|
| - addi r5, r8, 0
|
| -
|
| - ;# no vertical filter, so write the output from the first pass
|
| - ;# directly into the output buffer.
|
| - beq- no_vertical_filter_bypass
|
| -
|
| - ;# if the second filter is not null then need to back off by 2*pitch
|
| - sub r3, r3, r4
|
| - sub r3, r3, r4
|
| -
|
| - ;# setup counter for the number of lines that are going to be filtered
|
| - li r0, 21
|
| -
|
| - ;# use the stack as temporary storage
|
| - la r9, 48(r1)
|
| - li r5, 16
|
| -
|
| -no_vertical_filter_bypass:
|
| -
|
| - mtctr r0
|
| -
|
| - ;# rounding added in on the multiply
|
| - vspltisw v10, 8
|
| - vspltisw v12, 3
|
| - vslw v12, v10, v12 ;# 0x00000040000000400000004000000040
|
| -
|
| - ;# downshift by 7 ( divide by 128 ) at the end
|
| - vspltish v13, 7
|
| -
|
| - ;# index to the next set of vectors in the row.
|
| - li r10, 16
|
| - li r12, 32
|
| -
|
| -horizontal_loop_16x16:
|
| -
|
| - lvsl v15, 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 v1, 0, r3
|
| - lvx v2, r10, r3
|
| - lvx v3, r12, r3
|
| -
|
| - vperm v8, v1, v2, v15
|
| - vperm v9, v2, v3, v15 ;# v8 v9 = 21 input pixels left-justified
|
| -
|
| - vsldoi v11, v8, v9, 4
|
| -
|
| - ;# set 0
|
| - vmsummbm v6, v4, v8, v12 ;# taps times elements
|
| - vmsummbm v0, v5, v11, v6
|
| -
|
| - ;# set 1
|
| - vsldoi v10, v8, v9, 1
|
| - vsldoi v11, v8, v9, 5
|
| -
|
| - vmsummbm v6, v4, v10, v12
|
| - vmsummbm v1, v5, v11, v6
|
| -
|
| - ;# set 2
|
| - vsldoi v10, v8, v9, 2
|
| - vsldoi v11, v8, v9, 6
|
| -
|
| - vmsummbm v6, v4, v10, v12
|
| - vmsummbm v2, v5, v11, v6
|
| -
|
| - ;# set 3
|
| - vsldoi v10, v8, v9, 3
|
| - vsldoi v11, v8, v9, 7
|
| -
|
| - vmsummbm v6, v4, v10, v12
|
| - vmsummbm v3, v5, v11, v6
|
| -
|
| - vpkswus v0, v0, v1 ;# v0 = 0 4 8 C 1 5 9 D (16-bit)
|
| - vpkswus v1, v2, v3 ;# v1 = 2 6 A E 3 7 B F
|
| -
|
| - vsrh v0, v0, v13 ;# divide v0, v1 by 128
|
| - vsrh v1, v1, v13
|
| -
|
| - vpkuhus v0, v0, v1 ;# v0 = scrambled 8-bit result
|
| - vperm v0, v0, v0, v14 ;# v0 = correctly-ordered result
|
| -
|
| - stvx v0, 0, r9
|
| - add r9, r9, r5
|
| -
|
| - add r3, r3, r4
|
| -
|
| - bdnz horizontal_loop_16x16
|
| -
|
| - ;# check again to see if vertical filter needs to be done.
|
| - cmpi cr0, r6, 0
|
| - beq cr0, end_16x16
|
| -
|
| - ;# yes there is, so go to the second pass
|
| - b second_pass_16x16
|
| -
|
| -copy_horizontal_16x21:
|
| - li r10, 21
|
| - mtctr r10
|
| -
|
| - li r10, 16
|
| -
|
| - sub r3, r3, r4
|
| - sub r3, r3, r4
|
| -
|
| - ;# this is done above if there is a horizontal filter,
|
| - ;# if not it needs to be done down here.
|
| - slwi r6, r6, 4 ;# index into vertical filter array
|
| -
|
| - ;# always write to the stack when doing a horizontal copy
|
| - la r9, 48(r1)
|
| -
|
| -copy_horizontal_loop_16x21:
|
| - lvsl v15, 0, r3 ;# permutate value for alignment
|
| -
|
| - lvx v1, 0, r3
|
| - lvx v2, r10, r3
|
| -
|
| - vperm v8, v1, v2, v15
|
| -
|
| - stvx v8, 0, r9
|
| - addi r9, r9, 16
|
| -
|
| - add r3, r3, r4
|
| -
|
| - bdnz copy_horizontal_loop_16x21
|
| -
|
| -second_pass_16x16:
|
| -
|
| - ;# always read from the stack when doing a vertical filter
|
| - la r9, 48(r1)
|
| -
|
| - ;# downshift by 7 ( divide by 128 ) at the end
|
| - vspltish v7, 7
|
| -
|
| - vpre_load
|
| -
|
| - luma_vsix
|
| - luma_vsix
|
| - luma_vfour
|
| -
|
| -end_16x16:
|
| -
|
| - addi r1, r1, 416 ;# recover stack
|
| -
|
| - mtspr 256, r11 ;# reset old VRSAVE
|
| -
|
| - blr
|
| -
|
| - .data
|
| -
|
| - .align 4
|
| -HFilter:
|
| - .byte 0, 0,128, 0, 0, 0,128, 0, 0, 0,128, 0, 0, 0,128, 0
|
| - .byte 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 0, -6,123, 12, 0, -6,123, 12, 0, -6,123, 12, 0, -6,123, 12
|
| - .byte -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0
|
| - .byte 2,-11,108, 36, 2,-11,108, 36, 2,-11,108, 36, 2,-11,108, 36
|
| - .byte -8, 1, 0, 0, -8, 1, 0, 0, -8, 1, 0, 0, -8, 1, 0, 0
|
| - .byte 0, -9, 93, 50, 0, -9, 93, 50, 0, -9, 93, 50, 0, -9, 93, 50
|
| - .byte -6, 0, 0, 0, -6, 0, 0, 0, -6, 0, 0, 0, -6, 0, 0, 0
|
| - .byte 3,-16, 77, 77, 3,-16, 77, 77, 3,-16, 77, 77, 3,-16, 77, 77
|
| - .byte -16, 3, 0, 0,-16, 3, 0, 0,-16, 3, 0, 0,-16, 3, 0, 0
|
| - .byte 0, -6, 50, 93, 0, -6, 50, 93, 0, -6, 50, 93, 0, -6, 50, 93
|
| - .byte -9, 0, 0, 0, -9, 0, 0, 0, -9, 0, 0, 0, -9, 0, 0, 0
|
| - .byte 1, -8, 36,108, 1, -8, 36,108, 1, -8, 36,108, 1, -8, 36,108
|
| - .byte -11, 2, 0, 0,-11, 2, 0, 0,-11, 2, 0, 0,-11, 2, 0, 0
|
| - .byte 0, -1, 12,123, 0, -1, 12,123, 0, -1, 12,123, 0, -1, 12,123
|
| - .byte -6, 0, 0, 0, -6, 0, 0, 0, -6, 0, 0, 0, -6, 0, 0, 0
|
| -
|
| - .align 4
|
| -VFilter:
|
| - .byte 0, 0,128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 0, 6,123, 12, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 2, 11,108, 36, 8, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 0, 9, 93, 50, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 3, 16, 77, 77, 16, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 0, 6, 50, 93, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 1, 8, 36,108, 11, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| - .byte 0, 1, 12,123, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
|
| -
|
| - .align 4
|
| -b_hperm:
|
| - .byte 0, 4, 8, 12, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15
|
| -
|
| - .align 4
|
| -B_0123:
|
| - .byte 0, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6
|
| -
|
| - .align 4
|
| -B_4567:
|
| - .byte 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10
|
| -
|
| - .align 4
|
| -B_89AB:
|
| - .byte 8, 9, 10, 11, 9, 10, 11, 12, 10, 11, 12, 13, 11, 12, 13, 14
|
| -
|
| - .align 4
|
| -b_hilo:
|
| - .byte 0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23
|
| -
|
| - .align 4
|
| -b_hilo_4x4:
|
| - .byte 0, 1, 2, 3, 16, 17, 18, 19, 0, 0, 0, 0, 0, 0, 0, 0
|
|
|
Chromium Code Reviews
Issue 1124333011:
libvpx: Pull from upstream (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/libvpx.git@master