242 lines
7.7 KiB
NASM
242 lines
7.7 KiB
NASM
;
|
|
; 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"
|
|
|
|
;void vp9_short_fdct4x4_mmx(short *input, short *output, int pitch)
|
|
global sym(vp9_short_fdct4x4_mmx)
|
|
sym(vp9_short_fdct4x4_mmx):
|
|
push rbp
|
|
mov rbp, rsp
|
|
SHADOW_ARGS_TO_STACK 3
|
|
GET_GOT rbx
|
|
push rsi
|
|
push rdi
|
|
; end prolog
|
|
|
|
mov rsi, arg(0) ; input
|
|
mov rdi, arg(1) ; output
|
|
|
|
movsxd rax, dword ptr arg(2) ;pitch
|
|
|
|
lea rcx, [rsi + rax*2]
|
|
; read the input data
|
|
movq mm0, [rsi]
|
|
movq mm1, [rsi + rax]
|
|
|
|
movq mm2, [rcx]
|
|
movq mm4, [rcx + rax]
|
|
|
|
; transpose for the first stage
|
|
movq mm3, mm0 ; 00 01 02 03
|
|
movq mm5, mm2 ; 20 21 22 23
|
|
|
|
punpcklwd mm0, mm1 ; 00 10 01 11
|
|
punpckhwd mm3, mm1 ; 02 12 03 13
|
|
|
|
punpcklwd mm2, mm4 ; 20 30 21 31
|
|
punpckhwd mm5, mm4 ; 22 32 23 33
|
|
|
|
movq mm1, mm0 ; 00 10 01 11
|
|
punpckldq mm0, mm2 ; 00 10 20 30
|
|
|
|
punpckhdq mm1, mm2 ; 01 11 21 31
|
|
|
|
movq mm2, mm3 ; 02 12 03 13
|
|
punpckldq mm2, mm5 ; 02 12 22 32
|
|
|
|
punpckhdq mm3, mm5 ; 03 13 23 33
|
|
|
|
; mm0 0
|
|
; mm1 1
|
|
; mm2 2
|
|
; mm3 3
|
|
|
|
; first stage
|
|
movq mm5, mm0
|
|
movq mm4, mm1
|
|
|
|
paddw mm0, mm3 ; a1 = 0 + 3
|
|
paddw mm1, mm2 ; b1 = 1 + 2
|
|
|
|
psubw mm4, mm2 ; c1 = 1 - 2
|
|
psubw mm5, mm3 ; d1 = 0 - 3
|
|
|
|
psllw mm5, 3
|
|
psllw mm4, 3
|
|
|
|
psllw mm0, 3
|
|
psllw mm1, 3
|
|
|
|
; output 0 and 2
|
|
movq mm2, mm0 ; a1
|
|
|
|
paddw mm0, mm1 ; op[0] = a1 + b1
|
|
psubw mm2, mm1 ; op[2] = a1 - b1
|
|
|
|
; output 1 and 3
|
|
; interleave c1, d1
|
|
movq mm1, mm5 ; d1
|
|
punpcklwd mm1, mm4 ; c1 d1
|
|
punpckhwd mm5, mm4 ; c1 d1
|
|
|
|
movq mm3, mm1
|
|
movq mm4, mm5
|
|
|
|
pmaddwd mm1, MMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
|
|
pmaddwd mm4, MMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
|
|
|
|
pmaddwd mm3, MMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
|
|
pmaddwd mm5, MMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
|
|
|
|
paddd mm1, MMWORD PTR[GLOBAL(_14500)]
|
|
paddd mm4, MMWORD PTR[GLOBAL(_14500)]
|
|
paddd mm3, MMWORD PTR[GLOBAL(_7500)]
|
|
paddd mm5, MMWORD PTR[GLOBAL(_7500)]
|
|
|
|
psrad mm1, 12 ; (c1 * 2217 + d1 * 5352 + 14500)>>12
|
|
psrad mm4, 12 ; (c1 * 2217 + d1 * 5352 + 14500)>>12
|
|
psrad mm3, 12 ; (d1 * 2217 - c1 * 5352 + 7500)>>12
|
|
psrad mm5, 12 ; (d1 * 2217 - c1 * 5352 + 7500)>>12
|
|
|
|
packssdw mm1, mm4 ; op[1]
|
|
packssdw mm3, mm5 ; op[3]
|
|
|
|
; done with vertical
|
|
; transpose for the second stage
|
|
movq mm4, mm0 ; 00 10 20 30
|
|
movq mm5, mm2 ; 02 12 22 32
|
|
|
|
punpcklwd mm0, mm1 ; 00 01 10 11
|
|
punpckhwd mm4, mm1 ; 20 21 30 31
|
|
|
|
punpcklwd mm2, mm3 ; 02 03 12 13
|
|
punpckhwd mm5, mm3 ; 22 23 32 33
|
|
|
|
movq mm1, mm0 ; 00 01 10 11
|
|
punpckldq mm0, mm2 ; 00 01 02 03
|
|
|
|
punpckhdq mm1, mm2 ; 01 22 12 13
|
|
|
|
movq mm2, mm4 ; 20 31 30 31
|
|
punpckldq mm2, mm5 ; 20 21 22 23
|
|
|
|
punpckhdq mm4, mm5 ; 30 31 32 33
|
|
|
|
; mm0 0
|
|
; mm1 1
|
|
; mm2 2
|
|
; mm3 4
|
|
|
|
movq mm5, mm0
|
|
movq mm3, mm1
|
|
|
|
paddw mm0, mm4 ; a1 = 0 + 3
|
|
paddw mm1, mm2 ; b1 = 1 + 2
|
|
|
|
psubw mm3, mm2 ; c1 = 1 - 2
|
|
psubw mm5, mm4 ; d1 = 0 - 3
|
|
|
|
pxor mm6, mm6 ; zero out for compare
|
|
|
|
pcmpeqw mm6, mm5 ; d1 != 0
|
|
|
|
pandn mm6, MMWORD PTR[GLOBAL(_cmp_mask)] ; clear upper,
|
|
; and keep bit 0 of lower
|
|
|
|
; output 0 and 2
|
|
movq mm2, mm0 ; a1
|
|
|
|
paddw mm0, mm1 ; a1 + b1
|
|
psubw mm2, mm1 ; a1 - b1
|
|
|
|
paddw mm0, MMWORD PTR[GLOBAL(_7w)]
|
|
paddw mm2, MMWORD PTR[GLOBAL(_7w)]
|
|
|
|
psraw mm0, 4 ; op[0] = (a1 + b1 + 7)>>4
|
|
psraw mm2, 4 ; op[8] = (a1 - b1 + 7)>>4
|
|
|
|
movq MMWORD PTR[rdi + 0 ], mm0
|
|
movq MMWORD PTR[rdi + 16], mm2
|
|
|
|
; output 1 and 3
|
|
; interleave c1, d1
|
|
movq mm1, mm5 ; d1
|
|
punpcklwd mm1, mm3 ; c1 d1
|
|
punpckhwd mm5, mm3 ; c1 d1
|
|
|
|
movq mm3, mm1
|
|
movq mm4, mm5
|
|
|
|
pmaddwd mm1, MMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
|
|
pmaddwd mm4, MMWORD PTR[GLOBAL (_5352_2217)] ; c1*2217 + d1*5352
|
|
|
|
pmaddwd mm3, MMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
|
|
pmaddwd mm5, MMWORD PTR[GLOBAL(_2217_neg5352)] ; d1*2217 - c1*5352
|
|
|
|
paddd mm1, MMWORD PTR[GLOBAL(_12000)]
|
|
paddd mm4, MMWORD PTR[GLOBAL(_12000)]
|
|
paddd mm3, MMWORD PTR[GLOBAL(_51000)]
|
|
paddd mm5, MMWORD PTR[GLOBAL(_51000)]
|
|
|
|
psrad mm1, 16 ; (c1 * 2217 + d1 * 5352 + 14500)>>16
|
|
psrad mm4, 16 ; (c1 * 2217 + d1 * 5352 + 14500)>>16
|
|
psrad mm3, 16 ; (d1 * 2217 - c1 * 5352 + 7500)>>16
|
|
psrad mm5, 16 ; (d1 * 2217 - c1 * 5352 + 7500)>>16
|
|
|
|
packssdw mm1, mm4 ; op[4]
|
|
packssdw mm3, mm5 ; op[12]
|
|
|
|
paddw mm1, mm6 ; op[4] += (d1!=0)
|
|
|
|
movq MMWORD PTR[rdi + 8 ], mm1
|
|
movq MMWORD PTR[rdi + 24], mm3
|
|
|
|
; begin epilog
|
|
pop rdi
|
|
pop rsi
|
|
RESTORE_GOT
|
|
UNSHADOW_ARGS
|
|
pop rbp
|
|
ret
|
|
|
|
SECTION_RODATA
|
|
align 8
|
|
_5352_2217:
|
|
dw 5352
|
|
dw 2217
|
|
dw 5352
|
|
dw 2217
|
|
align 8
|
|
_2217_neg5352:
|
|
dw 2217
|
|
dw -5352
|
|
dw 2217
|
|
dw -5352
|
|
align 8
|
|
_cmp_mask:
|
|
times 4 dw 1
|
|
align 8
|
|
_7w:
|
|
times 4 dw 7
|
|
align 8
|
|
_14500:
|
|
times 2 dd 14500
|
|
align 8
|
|
_7500:
|
|
times 2 dd 7500
|
|
align 8
|
|
_12000:
|
|
times 2 dd 12000
|
|
align 8
|
|
_51000:
|
|
times 2 dd 51000
|