ref: c4f1fe4b221031f7739a13644b9053eb01f65332
dir: /vp8/encoder/x86/dct_sse2.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.
;
%include "vpx_ports/x86_abi_support.asm"
%macro STACK_FRAME_CREATE 0
%if ABI_IS_32BIT
%define input rsi
%define output rdi
%define pitch rax
push rbp
mov rbp, rsp
GET_GOT rbx
push rsi
push rdi
; end prolog
mov rsi, arg(0)
mov rdi, arg(1)
movsxd rax, dword ptr arg(2)
lea rcx, [rsi + rax*2]
%else
%if LIBVPX_YASM_WIN64
%define input rcx
%define output rdx
%define pitch r8
SAVE_XMM 7, u
%else
%define input rdi
%define output rsi
%define pitch rdx
%endif
%endif
%endmacro
%macro STACK_FRAME_DESTROY 0
%define input
%define output
%define pitch
%if ABI_IS_32BIT
pop rdi
pop rsi
RESTORE_GOT
pop rbp
%else
%if LIBVPX_YASM_WIN64
RESTORE_XMM
%endif
%endif
ret
%endmacro
SECTION .text
;void vp8_short_fdct4x4_sse2(short *input, short *output, int pitch)
global sym(vp8_short_fdct4x4_sse2) PRIVATE
sym(vp8_short_fdct4x4_sse2):
STACK_FRAME_CREATE
movq xmm0, MMWORD PTR[input ] ;03 02 01 00
movq xmm2, MMWORD PTR[input+ pitch] ;13 12 11 10
lea input, [input+2*pitch]
movq xmm1, MMWORD PTR[input ] ;23 22 21 20
movq xmm3, MMWORD PTR[input+ pitch] ;33 32 31 30
punpcklqdq xmm0, xmm2 ;13 12 11 10 03 02 01 00
punpcklqdq xmm1, xmm3 ;33 32 31 30 23 22 21 20
movdqa xmm2, xmm0
punpckldq xmm0, xmm1 ;23 22 03 02 21 20 01 00
punpckhdq xmm2, xmm1 ;33 32 13 12 31 30 11 10
movdqa xmm1, xmm0
punpckldq xmm0, xmm2 ;31 21 30 20 11 10 01 00
pshufhw xmm1, xmm1, 0b1h ;22 23 02 03 xx xx xx xx
pshufhw xmm2, xmm2, 0b1h ;32 33 12 13 xx xx xx xx
punpckhdq xmm1, xmm2 ;32 33 22 23 12 13 02 03
movdqa xmm3, xmm0
paddw xmm0, xmm1 ;b1 a1 b1 a1 b1 a1 b1 a1
psubw xmm3, xmm1 ;c1 d1 c1 d1 c1 d1 c1 d1
psllw xmm0, 3 ;b1 <<= 3 a1 <<= 3
psllw xmm3, 3 ;c1 <<= 3 d1 <<= 3
movdqa xmm1, xmm0
pmaddwd xmm0, XMMWORD PTR[GLOBAL(_mult_add)] ;a1 + b1
pmaddwd xmm1, XMMWORD PTR[GLOBAL(_mult_sub)] ;a1 - b1
movdqa xmm4, xmm3
pmaddwd xmm3, XMMWORD PTR[GLOBAL(_5352_2217)] ;c1*2217 + d1*5352
pmaddwd xmm4, XMMWORD PTR[GLOBAL(_2217_neg5352)];d1*2217 - c1*5352
paddd xmm3, XMMWORD PTR[GLOBAL(_14500)]
paddd xmm4, XMMWORD PTR[GLOBAL(_7500)]
psrad xmm3, 12 ;(c1 * 2217 + d1 * 5352 + 14500)>>12
psrad xmm4, 12 ;(d1 * 2217 - c1 * 5352 + 7500)>>12
packssdw xmm0, xmm1 ;op[2] op[0]
packssdw xmm3, xmm4 ;op[3] op[1]
; 23 22 21 20 03 02 01 00
;
; 33 32 31 30 13 12 11 10
;
movdqa xmm2, xmm0
punpcklqdq xmm0, xmm3 ;13 12 11 10 03 02 01 00
punpckhqdq xmm2, xmm3 ;23 22 21 20 33 32 31 30
movdqa xmm3, xmm0
punpcklwd xmm0, xmm2 ;32 30 22 20 12 10 02 00
punpckhwd xmm3, xmm2 ;33 31 23 21 13 11 03 01
movdqa xmm2, xmm0
punpcklwd xmm0, xmm3 ;13 12 11 10 03 02 01 00
punpckhwd xmm2, xmm3 ;33 32 31 30 23 22 21 20
movdqa xmm5, XMMWORD PTR[GLOBAL(_7)]
pshufd xmm2, xmm2, 04eh
movdqa xmm3, xmm0
paddw xmm0, xmm2 ;b1 b1 b1 b1 a1 a1 a1 a1
psubw xmm3, xmm2 ;c1 c1 c1 c1 d1 d1 d1 d1
pshufd xmm0, xmm0, 0d8h ;b1 b1 a1 a1 b1 b1 a1 a1
movdqa xmm2, xmm3 ;save d1 for compare
pshufd xmm3, xmm3, 0d8h ;c1 c1 d1 d1 c1 c1 d1 d1
pshuflw xmm0, xmm0, 0d8h ;b1 b1 a1 a1 b1 a1 b1 a1
pshuflw xmm3, xmm3, 0d8h ;c1 c1 d1 d1 c1 d1 c1 d1
pshufhw xmm0, xmm0, 0d8h ;b1 a1 b1 a1 b1 a1 b1 a1
pshufhw xmm3, xmm3, 0d8h ;c1 d1 c1 d1 c1 d1 c1 d1
movdqa xmm1, xmm0
pmaddwd xmm0, XMMWORD PTR[GLOBAL(_mult_add)] ;a1 + b1
pmaddwd xmm1, XMMWORD PTR[GLOBAL(_mult_sub)] ;a1 - b1
pxor xmm4, xmm4 ;zero out for compare
paddd xmm0, xmm5
paddd xmm1, xmm5
pcmpeqw xmm2, xmm4
psrad xmm0, 4 ;(a1 + b1 + 7)>>4
psrad xmm1, 4 ;(a1 - b1 + 7)>>4
pandn xmm2, XMMWORD PTR[GLOBAL(_cmp_mask)] ;clear upper,
;and keep bit 0 of lower
movdqa xmm4, xmm3
pmaddwd xmm3, XMMWORD PTR[GLOBAL(_5352_2217)] ;c1*2217 + d1*5352
pmaddwd xmm4, XMMWORD PTR[GLOBAL(_2217_neg5352)] ;d1*2217 - c1*5352
paddd xmm3, XMMWORD PTR[GLOBAL(_12000)]
paddd xmm4, XMMWORD PTR[GLOBAL(_51000)]
packssdw xmm0, xmm1 ;op[8] op[0]
psrad xmm3, 16 ;(c1 * 2217 + d1 * 5352 + 12000)>>16
psrad xmm4, 16 ;(d1 * 2217 - c1 * 5352 + 51000)>>16
packssdw xmm3, xmm4 ;op[12] op[4]
movdqa xmm1, xmm0
paddw xmm3, xmm2 ;op[4] += (d1!=0)
punpcklqdq xmm0, xmm3 ;op[4] op[0]
punpckhqdq xmm1, xmm3 ;op[12] op[8]
movdqa XMMWORD PTR[output + 0], xmm0
movdqa XMMWORD PTR[output + 16], xmm1
STACK_FRAME_DESTROY
;void vp8_short_fdct8x4_sse2(short *input, short *output, int pitch)
global sym(vp8_short_fdct8x4_sse2) PRIVATE
sym(vp8_short_fdct8x4_sse2):
STACK_FRAME_CREATE
; read the input data
movdqa xmm0, [input ]
movdqa xmm2, [input+ pitch]
lea input, [input+2*pitch]
movdqa xmm4, [input ]
movdqa xmm3, [input+ pitch]
; transpose for the first stage
movdqa xmm1, xmm0 ; 00 01 02 03 04 05 06 07
movdqa xmm5, xmm4 ; 20 21 22 23 24 25 26 27
punpcklwd xmm0, xmm2 ; 00 10 01 11 02 12 03 13
punpckhwd xmm1, xmm2 ; 04 14 05 15 06 16 07 17
punpcklwd xmm4, xmm3 ; 20 30 21 31 22 32 23 33
punpckhwd xmm5, xmm3 ; 24 34 25 35 26 36 27 37
movdqa xmm2, xmm0 ; 00 10 01 11 02 12 03 13
punpckldq xmm0, xmm4 ; 00 10 20 30 01 11 21 31
punpckhdq xmm2, xmm4 ; 02 12 22 32 03 13 23 33
movdqa xmm4, xmm1 ; 04 14 05 15 06 16 07 17
punpckldq xmm4, xmm5 ; 04 14 24 34 05 15 25 35
punpckhdq xmm1, xmm5 ; 06 16 26 36 07 17 27 37
movdqa xmm3, xmm2 ; 02 12 22 32 03 13 23 33
punpckhqdq xmm3, xmm1 ; 03 13 23 33 07 17 27 37
punpcklqdq xmm2, xmm1 ; 02 12 22 32 06 16 26 36
movdqa xmm1, xmm0 ; 00 10 20 30 01 11 21 31
punpcklqdq xmm0, xmm4 ; 00 10 20 30 04 14 24 34
punpckhqdq xmm1, xmm4 ; 01 11 21 32 05 15 25 35
; xmm0 0
; xmm1 1
; xmm2 2
; xmm3 3
; first stage
movdqa xmm5, xmm0
movdqa xmm4, xmm1
paddw xmm0, xmm3 ; a1 = 0 + 3
paddw xmm1, xmm2 ; b1 = 1 + 2
psubw xmm4, xmm2 ; c1 = 1 - 2
psubw xmm5, xmm3 ; d1 = 0 - 3
psllw xmm5, 3
psllw xmm4, 3
psllw xmm0, 3
psllw xmm1, 3
; output 0 and 2
movdqa xmm2, xmm0 ; a1
paddw xmm0, xmm1 ; op[0] = a1 + b1
psubw xmm2, xmm1 ; op[2] = a1 - b1
; output 1 and 3
; interleave c1, d1
movdqa xmm1, xmm5 ; d1
punpcklwd xmm1, xmm4 ; c1 d1
punpckhwd xmm5, xmm4 ; c1 d1
movdqa xmm3, xmm1
movdqa xmm4, xmm5
pmaddwd xmm1, XMMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
pmaddwd xmm4, XMMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
pmaddwd xmm3, XMMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
pmaddwd xmm5, XMMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
paddd xmm1, XMMWORD PTR[GLOBAL(_14500)]
paddd xmm4, XMMWORD PTR[GLOBAL(_14500)]
paddd xmm3, XMMWORD PTR[GLOBAL(_7500)]
paddd xmm5, XMMWORD PTR[GLOBAL(_7500)]
psrad xmm1, 12 ; (c1 * 2217 + d1 * 5352 + 14500)>>12
psrad xmm4, 12 ; (c1 * 2217 + d1 * 5352 + 14500)>>12
psrad xmm3, 12 ; (d1 * 2217 - c1 * 5352 + 7500)>>12
psrad xmm5, 12 ; (d1 * 2217 - c1 * 5352 + 7500)>>12
packssdw xmm1, xmm4 ; op[1]
packssdw xmm3, xmm5 ; op[3]
; done with vertical
; transpose for the second stage
movdqa xmm4, xmm0 ; 00 10 20 30 04 14 24 34
movdqa xmm5, xmm2 ; 02 12 22 32 06 16 26 36
punpcklwd xmm0, xmm1 ; 00 01 10 11 20 21 30 31
punpckhwd xmm4, xmm1 ; 04 05 14 15 24 25 34 35
punpcklwd xmm2, xmm3 ; 02 03 12 13 22 23 32 33
punpckhwd xmm5, xmm3 ; 06 07 16 17 26 27 36 37
movdqa xmm1, xmm0 ; 00 01 10 11 20 21 30 31
punpckldq xmm0, xmm2 ; 00 01 02 03 10 11 12 13
punpckhdq xmm1, xmm2 ; 20 21 22 23 30 31 32 33
movdqa xmm2, xmm4 ; 04 05 14 15 24 25 34 35
punpckldq xmm2, xmm5 ; 04 05 06 07 14 15 16 17
punpckhdq xmm4, xmm5 ; 24 25 26 27 34 35 36 37
movdqa xmm3, xmm1 ; 20 21 22 23 30 31 32 33
punpckhqdq xmm3, xmm4 ; 30 31 32 33 34 35 36 37
punpcklqdq xmm1, xmm4 ; 20 21 22 23 24 25 26 27
movdqa xmm4, xmm0 ; 00 01 02 03 10 11 12 13
punpcklqdq xmm0, xmm2 ; 00 01 02 03 04 05 06 07
punpckhqdq xmm4, xmm2 ; 10 11 12 13 14 15 16 17
; xmm0 0
; xmm1 4
; xmm2 1
; xmm3 3
movdqa xmm5, xmm0
movdqa xmm2, xmm1
paddw xmm0, xmm3 ; a1 = 0 + 3
paddw xmm1, xmm4 ; b1 = 1 + 2
psubw xmm4, xmm2 ; c1 = 1 - 2
psubw xmm5, xmm3 ; d1 = 0 - 3
pxor xmm6, xmm6 ; zero out for compare
pcmpeqw xmm6, xmm5 ; d1 != 0
pandn xmm6, XMMWORD PTR[GLOBAL(_cmp_mask8x4)] ; clear upper,
; and keep bit 0 of lower
; output 0 and 2
movdqa xmm2, xmm0 ; a1
paddw xmm0, xmm1 ; a1 + b1
psubw xmm2, xmm1 ; a1 - b1
paddw xmm0, XMMWORD PTR[GLOBAL(_7w)]
paddw xmm2, XMMWORD PTR[GLOBAL(_7w)]
psraw xmm0, 4 ; op[0] = (a1 + b1 + 7)>>4
psraw xmm2, 4 ; op[8] = (a1 - b1 + 7)>>4
; output 1 and 3
; interleave c1, d1
movdqa xmm1, xmm5 ; d1
punpcklwd xmm1, xmm4 ; c1 d1
punpckhwd xmm5, xmm4 ; c1 d1
movdqa xmm3, xmm1
movdqa xmm4, xmm5
pmaddwd xmm1, XMMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
pmaddwd xmm4, XMMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
pmaddwd xmm3, XMMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
pmaddwd xmm5, XMMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
paddd xmm1, XMMWORD PTR[GLOBAL(_12000)]
paddd xmm4, XMMWORD PTR[GLOBAL(_12000)]
paddd xmm3, XMMWORD PTR[GLOBAL(_51000)]
paddd xmm5, XMMWORD PTR[GLOBAL(_51000)]
psrad xmm1, 16 ; (c1 * 2217 + d1 * 5352 + 14500)>>16
psrad xmm4, 16 ; (c1 * 2217 + d1 * 5352 + 14500)>>16
psrad xmm3, 16 ; (d1 * 2217 - c1 * 5352 + 7500)>>16
psrad xmm5, 16 ; (d1 * 2217 - c1 * 5352 + 7500)>>16
packssdw xmm1, xmm4 ; op[4]
packssdw xmm3, xmm5 ; op[12]
paddw xmm1, xmm6 ; op[4] += (d1!=0)
movdqa xmm4, xmm0
movdqa xmm5, xmm2
punpcklqdq xmm0, xmm1
punpckhqdq xmm4, xmm1
punpcklqdq xmm2, xmm3
punpckhqdq xmm5, xmm3
movdqa XMMWORD PTR[output + 0 ], xmm0
movdqa XMMWORD PTR[output + 16], xmm2
movdqa XMMWORD PTR[output + 32], xmm4
movdqa XMMWORD PTR[output + 48], xmm5
STACK_FRAME_DESTROY
SECTION_RODATA
align 16
_5352_2217:
dw 5352
dw 2217
dw 5352
dw 2217
dw 5352
dw 2217
dw 5352
dw 2217
align 16
_2217_neg5352:
dw 2217
dw -5352
dw 2217
dw -5352
dw 2217
dw -5352
dw 2217
dw -5352
align 16
_mult_add:
times 8 dw 1
align 16
_cmp_mask:
times 4 dw 1
times 4 dw 0
align 16
_cmp_mask8x4:
times 8 dw 1
align 16
_mult_sub:
dw 1
dw -1
dw 1
dw -1
dw 1
dw -1
dw 1
dw -1
align 16
_7:
times 4 dd 7
align 16
_7w:
times 8 dw 7
align 16
_14500:
times 4 dd 14500
align 16
_7500:
times 4 dd 7500
align 16
_12000:
times 4 dd 12000
align 16
_51000:
times 4 dd 51000