ref: c8f56d23039865b0bd03ea8c518b5691f2be02c7
dir: /vpx_dsp/x86/vpx_subpixel_8t_ssse3.asm/
;
; Copyright (c) 2015 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.
;
%include "third_party/x86inc/x86inc.asm"
SECTION_RODATA
pw_64: times 8 dw 64
; %define USE_PMULHRSW
; NOTE: pmulhrsw has a latency of 5 cycles. Tests showed a performance loss
; when using this instruction.
;
; The add order below (based on ffvp9) must be followed to prevent outranges.
; x = k0k1 + k4k5
; y = k2k3 + k6k7
; z = signed SAT(x + y)
SECTION .text
%if ARCH_X86_64
%define LOCAL_VARS_SIZE 16*4
%else
%define LOCAL_VARS_SIZE 16*6
%endif
%macro SETUP_LOCAL_VARS 0
; TODO(slavarnway): using xmm registers for these on ARCH_X86_64 +
; pmaddubsw has a higher latency on some platforms, this might be eased by
; interleaving the instructions.
%define k0k1 [rsp + 16*0]
%define k2k3 [rsp + 16*1]
%define k4k5 [rsp + 16*2]
%define k6k7 [rsp + 16*3]
packsswb m4, m4
; TODO(slavarnway): multiple pshufb instructions had a higher latency on
; some platforms.
pshuflw m0, m4, 0b ;k0_k1
pshuflw m1, m4, 01010101b ;k2_k3
pshuflw m2, m4, 10101010b ;k4_k5
pshuflw m3, m4, 11111111b ;k6_k7
punpcklqdq m0, m0
punpcklqdq m1, m1
punpcklqdq m2, m2
punpcklqdq m3, m3
mova k0k1, m0
mova k2k3, m1
mova k4k5, m2
mova k6k7, m3
%if ARCH_X86_64
%define krd m12
%define tmp m13
mova krd, [GLOBAL(pw_64)]
%else
%define tmp [rsp + 16*4]
%define krd [rsp + 16*5]
%if CONFIG_PIC=0
mova m6, [GLOBAL(pw_64)]
%else
; build constants without accessing global memory
pcmpeqb m6, m6 ;all ones
psrlw m6, 15
psllw m6, 6 ;aka pw_64
%endif
mova krd, m6
%endif
%endm
%macro HORIZx4_ROW 2
mova %2, %1
punpcklbw %1, %1
punpckhbw %2, %2
mova m3, %2
palignr %2, %1, 1
palignr m3, %1, 5
pmaddubsw %2, k0k1k4k5
pmaddubsw m3, k2k3k6k7
mova m4, %2 ;k0k1
mova m5, m3 ;k2k3
psrldq %2, 8 ;k4k5
psrldq m3, 8 ;k6k7
paddsw %2, m4
paddsw m5, m3
paddsw %2, m5
paddsw %2, krd
psraw %2, 7
packuswb %2, %2
%endm
;-------------------------------------------------------------------------------
%macro SUBPIX_HFILTER4 1
cglobal filter_block1d4_%1, 6, 6+(ARCH_X86_64*2), 11, LOCAL_VARS_SIZE, \
src, sstride, dst, dstride, height, filter
mova m4, [filterq]
packsswb m4, m4
%if ARCH_X86_64
%define k0k1k4k5 m8
%define k2k3k6k7 m9
%define krd m10
%define orig_height r7d
mova krd, [GLOBAL(pw_64)]
pshuflw k0k1k4k5, m4, 0b ;k0_k1
pshufhw k0k1k4k5, k0k1k4k5, 10101010b ;k0_k1_k4_k5
pshuflw k2k3k6k7, m4, 01010101b ;k2_k3
pshufhw k2k3k6k7, k2k3k6k7, 11111111b ;k2_k3_k6_k7
%else
%define k0k1k4k5 [rsp + 16*0]
%define k2k3k6k7 [rsp + 16*1]
%define krd [rsp + 16*2]
%define orig_height [rsp + 16*3]
pshuflw m6, m4, 0b ;k0_k1
pshufhw m6, m6, 10101010b ;k0_k1_k4_k5
pshuflw m7, m4, 01010101b ;k2_k3
pshufhw m7, m7, 11111111b ;k2_k3_k6_k7
%if CONFIG_PIC=0
mova m1, [GLOBAL(pw_64)]
%else
; build constants without accessing global memory
pcmpeqb m1, m1 ;all ones
psrlw m1, 15
psllw m1, 6 ;aka pw_64
%endif
mova k0k1k4k5, m6
mova k2k3k6k7, m7
mova krd, m1
%endif
mov orig_height, heightd
shr heightd, 1
.loop:
;Do two rows at once
movh m0, [srcq - 3]
movh m1, [srcq + 5]
punpcklqdq m0, m1
mova m1, m0
movh m2, [srcq + sstrideq - 3]
movh m3, [srcq + sstrideq + 5]
punpcklqdq m2, m3
mova m3, m2
punpcklbw m0, m0
punpckhbw m1, m1
punpcklbw m2, m2
punpckhbw m3, m3
mova m4, m1
palignr m4, m0, 1
pmaddubsw m4, k0k1k4k5
palignr m1, m0, 5
pmaddubsw m1, k2k3k6k7
mova m7, m3
palignr m7, m2, 1
pmaddubsw m7, k0k1k4k5
palignr m3, m2, 5
pmaddubsw m3, k2k3k6k7
mova m0, m4 ;k0k1
mova m5, m1 ;k2k3
mova m2, m7 ;k0k1 upper
psrldq m4, 8 ;k4k5
psrldq m1, 8 ;k6k7
paddsw m4, m0
paddsw m5, m1
mova m1, m3 ;k2k3 upper
psrldq m7, 8 ;k4k5 upper
psrldq m3, 8 ;k6k7 upper
paddsw m7, m2
paddsw m4, m5
paddsw m1, m3
paddsw m7, m1
paddsw m4, krd
psraw m4, 7
packuswb m4, m4
paddsw m7, krd
psraw m7, 7
packuswb m7, m7
%ifidn %1, h8_avg
movd m0, [dstq]
pavgb m4, m0
movd m2, [dstq + dstrideq]
pavgb m7, m2
%endif
movd [dstq], m4
movd [dstq + dstrideq], m7
lea srcq, [srcq + sstrideq ]
prefetcht0 [srcq + 4 * sstrideq - 3]
lea srcq, [srcq + sstrideq ]
lea dstq, [dstq + 2 * dstrideq ]
prefetcht0 [srcq + 2 * sstrideq - 3]
dec heightd
jnz .loop
; Do last row if output_height is odd
mov heightd, orig_height
and heightd, 1
je .done
movh m0, [srcq - 3] ; load src
movh m1, [srcq + 5]
punpcklqdq m0, m1
HORIZx4_ROW m0, m1
%ifidn %1, h8_avg
movd m0, [dstq]
pavgb m1, m0
%endif
movd [dstq], m1
.done
RET
%endm
%macro HORIZx8_ROW 5
mova %2, %1
punpcklbw %1, %1
punpckhbw %2, %2
mova %3, %2
mova %4, %2
mova %5, %2
palignr %2, %1, 1
palignr %3, %1, 5
palignr %4, %1, 9
palignr %5, %1, 13
pmaddubsw %2, k0k1
pmaddubsw %3, k2k3
pmaddubsw %4, k4k5
pmaddubsw %5, k6k7
paddsw %2, %4
paddsw %5, %3
paddsw %2, %5
paddsw %2, krd
psraw %2, 7
packuswb %2, %2
SWAP %1, %2
%endm
;-------------------------------------------------------------------------------
%macro SUBPIX_HFILTER8 1
cglobal filter_block1d8_%1, 6, 6+(ARCH_X86_64*1), 14, LOCAL_VARS_SIZE, \
src, sstride, dst, dstride, height, filter
mova m4, [filterq]
SETUP_LOCAL_VARS
%if ARCH_X86_64
%define orig_height r7d
%else
%define orig_height heightmp
%endif
mov orig_height, heightd
shr heightd, 1
.loop:
movh m0, [srcq - 3]
movh m3, [srcq + 5]
movh m4, [srcq + sstrideq - 3]
movh m7, [srcq + sstrideq + 5]
punpcklqdq m0, m3
mova m1, m0
punpcklbw m0, m0
punpckhbw m1, m1
mova m5, m1
palignr m5, m0, 13
pmaddubsw m5, k6k7
mova m2, m1
mova m3, m1
palignr m1, m0, 1
pmaddubsw m1, k0k1
punpcklqdq m4, m7
mova m6, m4
punpcklbw m4, m4
palignr m2, m0, 5
punpckhbw m6, m6
palignr m3, m0, 9
mova m7, m6
pmaddubsw m2, k2k3
pmaddubsw m3, k4k5
palignr m7, m4, 13
mova m0, m6
palignr m0, m4, 5
pmaddubsw m7, k6k7
paddsw m1, m3
paddsw m2, m5
paddsw m1, m2
mova m5, m6
palignr m6, m4, 1
pmaddubsw m0, k2k3
pmaddubsw m6, k0k1
palignr m5, m4, 9
paddsw m1, krd
pmaddubsw m5, k4k5
psraw m1, 7
paddsw m0, m7
%ifidn %1, h8_avg
movh m7, [dstq]
movh m2, [dstq + dstrideq]
%endif
packuswb m1, m1
paddsw m6, m5
paddsw m6, m0
paddsw m6, krd
psraw m6, 7
packuswb m6, m6
%ifidn %1, h8_avg
pavgb m1, m7
pavgb m6, m2
%endif
movh [dstq], m1
movh [dstq + dstrideq], m6
lea srcq, [srcq + sstrideq ]
prefetcht0 [srcq + 4 * sstrideq - 3]
lea srcq, [srcq + sstrideq ]
lea dstq, [dstq + 2 * dstrideq ]
prefetcht0 [srcq + 2 * sstrideq - 3]
dec heightd
jnz .loop
;Do last row if output_height is odd
mov heightd, orig_height
and heightd, 1
je .done
movh m0, [srcq - 3]
movh m3, [srcq + 5]
punpcklqdq m0, m3
HORIZx8_ROW m0, m1, m2, m3, m4
%ifidn %1, h8_avg
movh m1, [dstq]
pavgb m0, m1
%endif
movh [dstq], m0
.done:
RET
%endm
;-------------------------------------------------------------------------------
%macro SUBPIX_HFILTER16 1
cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*0), 14, LOCAL_VARS_SIZE, \
src, sstride, dst, dstride, height, filter
mova m4, [filterq]
SETUP_LOCAL_VARS
.loop:
prefetcht0 [srcq + 2 * sstrideq -3]
movh m0, [srcq - 3]
movh m4, [srcq + 5]
movh m6, [srcq + 13]
punpcklqdq m0, m4
mova m7, m0
punpckhbw m0, m0
mova m1, m0
punpcklqdq m4, m6
mova m3, m0
punpcklbw m7, m7
palignr m3, m7, 13
mova m2, m0
pmaddubsw m3, k6k7
palignr m0, m7, 1
pmaddubsw m0, k0k1
palignr m1, m7, 5
pmaddubsw m1, k2k3
palignr m2, m7, 9
pmaddubsw m2, k4k5
paddsw m1, m3
mova m3, m4
punpckhbw m4, m4
mova m5, m4
punpcklbw m3, m3
mova m7, m4
palignr m5, m3, 5
mova m6, m4
palignr m4, m3, 1
pmaddubsw m4, k0k1
pmaddubsw m5, k2k3
palignr m6, m3, 9
pmaddubsw m6, k4k5
palignr m7, m3, 13
pmaddubsw m7, k6k7
paddsw m0, m2
paddsw m0, m1
%ifidn %1, h8_avg
mova m1, [dstq]
%endif
paddsw m4, m6
paddsw m5, m7
paddsw m4, m5
paddsw m0, krd
paddsw m4, krd
psraw m0, 7
psraw m4, 7
packuswb m0, m4
%ifidn %1, h8_avg
pavgb m0, m1
%endif
lea srcq, [srcq + sstrideq]
mova [dstq], m0
lea dstq, [dstq + dstrideq]
dec heightd
jnz .loop
RET
%endm
INIT_XMM ssse3
SUBPIX_HFILTER16 h8
SUBPIX_HFILTER16 h8_avg
SUBPIX_HFILTER8 h8
SUBPIX_HFILTER8 h8_avg
SUBPIX_HFILTER4 h8
SUBPIX_HFILTER4 h8_avg
;-------------------------------------------------------------------------------
%macro SUBPIX_VFILTER 2
cglobal filter_block1d%2_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \
src, sstride, dst, dstride, height, filter
mova m4, [filterq]
SETUP_LOCAL_VARS
%if ARCH_X86_64
%define src1q r7
%define sstride6q r8
%define dst_stride dstrideq
%else
%define src1q filterq
%define sstride6q dstrideq
%define dst_stride dstridemp
%endif
mov src1q, srcq
add src1q, sstrideq
lea sstride6q, [sstrideq + sstrideq * 4]
add sstride6q, sstrideq ;pitch * 6
%ifidn %2, 8
%define movx movh
%else
%define movx movd
%endif
.loop:
movx m0, [srcq ] ;A
movx m1, [srcq + sstrideq ] ;B
punpcklbw m0, m1 ;A B
movx m2, [srcq + sstrideq * 2 ] ;C
pmaddubsw m0, k0k1
mova m6, m2
movx m3, [src1q + sstrideq * 2] ;D
punpcklbw m2, m3 ;C D
pmaddubsw m2, k2k3
movx m4, [srcq + sstrideq * 4 ] ;E
mova m7, m4
movx m5, [src1q + sstrideq * 4] ;F
punpcklbw m4, m5 ;E F
pmaddubsw m4, k4k5
punpcklbw m1, m6 ;A B next iter
movx m6, [srcq + sstride6q ] ;G
punpcklbw m5, m6 ;E F next iter
punpcklbw m3, m7 ;C D next iter
pmaddubsw m5, k4k5
movx m7, [src1q + sstride6q ] ;H
punpcklbw m6, m7 ;G H
pmaddubsw m6, k6k7
pmaddubsw m3, k2k3
pmaddubsw m1, k0k1
paddsw m0, m4
paddsw m2, m6
movx m6, [srcq + sstrideq * 8 ] ;H next iter
punpcklbw m7, m6
pmaddubsw m7, k6k7
paddsw m0, m2
paddsw m0, krd
psraw m0, 7
paddsw m1, m5
packuswb m0, m0
paddsw m3, m7
paddsw m1, m3
paddsw m1, krd
psraw m1, 7
lea srcq, [srcq + sstrideq * 2 ]
lea src1q, [src1q + sstrideq * 2]
packuswb m1, m1
%ifidn %1, v8_avg
movx m2, [dstq]
pavgb m0, m2
%endif
movx [dstq], m0
add dstq, dst_stride
%ifidn %1, v8_avg
movx m3, [dstq]
pavgb m1, m3
%endif
movx [dstq], m1
add dstq, dst_stride
sub heightd, 2
cmp heightd, 1
jg .loop
cmp heightd, 0
je .done
movx m0, [srcq ] ;A
movx m1, [srcq + sstrideq ] ;B
movx m6, [srcq + sstride6q ] ;G
punpcklbw m0, m1 ;A B
movx m7, [src1q + sstride6q ] ;H
pmaddubsw m0, k0k1
movx m2, [srcq + sstrideq * 2 ] ;C
punpcklbw m6, m7 ;G H
movx m3, [src1q + sstrideq * 2] ;D
pmaddubsw m6, k6k7
movx m4, [srcq + sstrideq * 4 ] ;E
punpcklbw m2, m3 ;C D
movx m5, [src1q + sstrideq * 4] ;F
punpcklbw m4, m5 ;E F
pmaddubsw m2, k2k3
pmaddubsw m4, k4k5
paddsw m2, m6
paddsw m0, m4
paddsw m0, m2
paddsw m0, krd
psraw m0, 7
packuswb m0, m0
%ifidn %1, v8_avg
movx m1, [dstq]
pavgb m0, m1
%endif
movx [dstq], m0
.done:
RET
%endm
;-------------------------------------------------------------------------------
%macro SUBPIX_VFILTER16 1
cglobal filter_block1d16_%1, 6, 6+(ARCH_X86_64*3), 14, LOCAL_VARS_SIZE, \
src, sstride, dst, dstride, height, filter
mova m4, [filterq]
SETUP_LOCAL_VARS
%if ARCH_X86_64
%define src1q r7
%define sstride6q r8
%define dst_stride dstrideq
%else
%define src1q filterq
%define sstride6q dstrideq
%define dst_stride dstridemp
%endif
mov src1q, srcq
add src1q, sstrideq
lea sstride6q, [sstrideq + sstrideq * 4]
add sstride6q, sstrideq ;pitch * 6
.loop:
movh m0, [srcq ] ;A
movh m1, [srcq + sstrideq ] ;B
movh m2, [srcq + sstrideq * 2 ] ;C
movh m3, [src1q + sstrideq * 2] ;D
movh m4, [srcq + sstrideq * 4 ] ;E
movh m5, [src1q + sstrideq * 4] ;F
punpcklbw m0, m1 ;A B
movh m6, [srcq + sstride6q] ;G
punpcklbw m2, m3 ;C D
movh m7, [src1q + sstride6q] ;H
punpcklbw m4, m5 ;E F
pmaddubsw m0, k0k1
movh m3, [srcq + 8] ;A
pmaddubsw m2, k2k3
punpcklbw m6, m7 ;G H
movh m5, [srcq + sstrideq + 8] ;B
pmaddubsw m4, k4k5
punpcklbw m3, m5 ;A B
movh m7, [srcq + sstrideq * 2 + 8] ;C
pmaddubsw m6, k6k7
movh m5, [src1q + sstrideq * 2 + 8] ;D
punpcklbw m7, m5 ;C D
paddsw m2, m6
pmaddubsw m3, k0k1
movh m1, [srcq + sstrideq * 4 + 8] ;E
paddsw m0, m4
pmaddubsw m7, k2k3
movh m6, [src1q + sstrideq * 4 + 8] ;F
punpcklbw m1, m6 ;E F
paddsw m0, m2
paddsw m0, krd
movh m2, [srcq + sstride6q + 8] ;G
pmaddubsw m1, k4k5
movh m5, [src1q + sstride6q + 8] ;H
psraw m0, 7
punpcklbw m2, m5 ;G H
pmaddubsw m2, k6k7
%ifidn %1, v8_avg
mova m4, [dstq]
%endif
movh [dstq], m0
paddsw m7, m2
paddsw m3, m1
paddsw m3, m7
paddsw m3, krd
psraw m3, 7
packuswb m0, m3
add srcq, sstrideq
add src1q, sstrideq
%ifidn %1, v8_avg
pavgb m0, m4
%endif
mova [dstq], m0
add dstq, dst_stride
dec heightd
jnz .loop
RET
%endm
INIT_XMM ssse3
SUBPIX_VFILTER16 v8
SUBPIX_VFILTER16 v8_avg
SUBPIX_VFILTER v8, 8
SUBPIX_VFILTER v8_avg, 8
SUBPIX_VFILTER v8, 4
SUBPIX_VFILTER v8_avg, 4