ref: 488c0a54f6aeadd80299fc836083f414be2bccb5
dir: /vp8/common/x86/dequantize_mmx.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"
;void vp8_dequantize_b_impl_mmx(short *sq, short *dq, short *q)
global sym(vp8_dequantize_b_impl_mmx) PRIVATE
sym(vp8_dequantize_b_impl_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 3
push rsi
push rdi
; end prolog
mov rsi, arg(0) ;sq
mov rdi, arg(1) ;dq
mov rax, arg(2) ;q
movq mm1, [rsi]
pmullw mm1, [rax+0] ; mm4 *= kernel 0 modifiers.
movq [rdi], mm1
movq mm1, [rsi+8]
pmullw mm1, [rax+8] ; mm4 *= kernel 0 modifiers.
movq [rdi+8], mm1
movq mm1, [rsi+16]
pmullw mm1, [rax+16] ; mm4 *= kernel 0 modifiers.
movq [rdi+16], mm1
movq mm1, [rsi+24]
pmullw mm1, [rax+24] ; mm4 *= kernel 0 modifiers.
movq [rdi+24], mm1
; begin epilog
pop rdi
pop rsi
UNSHADOW_ARGS
pop rbp
ret
;void dequant_idct_add_mmx(
;short *input, 0
;short *dq, 1
;unsigned char *dest, 2
;int stride) 3
global sym(vp8_dequant_idct_add_mmx) PRIVATE
sym(vp8_dequant_idct_add_mmx):
push rbp
mov rbp, rsp
SHADOW_ARGS_TO_STACK 4
GET_GOT rbx
push rdi
; end prolog
mov rax, arg(0) ;input
mov rdx, arg(1) ;dq
movq mm0, [rax ]
pmullw mm0, [rdx]
movq mm1, [rax +8]
pmullw mm1, [rdx +8]
movq mm2, [rax+16]
pmullw mm2, [rdx+16]
movq mm3, [rax+24]
pmullw mm3, [rdx+24]
mov rdx, arg(2) ;dest
pxor mm7, mm7
movq [rax], mm7
movq [rax+8], mm7
movq [rax+16],mm7
movq [rax+24],mm7
movsxd rdi, dword ptr arg(3) ;stride
psubw mm0, mm2 ; b1= 0-2
paddw mm2, mm2 ;
movq mm5, mm1
paddw mm2, mm0 ; a1 =0+2
pmulhw mm5, [GLOBAL(x_s1sqr2)];
paddw mm5, mm1 ; ip1 * sin(pi/8) * sqrt(2)
movq mm7, mm3 ;
pmulhw mm7, [GLOBAL(x_c1sqr2less1)];
paddw mm7, mm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw mm7, mm5 ; c1
movq mm5, mm1
movq mm4, mm3
pmulhw mm5, [GLOBAL(x_c1sqr2less1)]
paddw mm5, mm1
pmulhw mm3, [GLOBAL(x_s1sqr2)]
paddw mm3, mm4
paddw mm3, mm5 ; d1
movq mm6, mm2 ; a1
movq mm4, mm0 ; b1
paddw mm2, mm3 ;0
paddw mm4, mm7 ;1
psubw mm0, mm7 ;2
psubw mm6, mm3 ;3
movq mm1, mm2 ; 03 02 01 00
movq mm3, mm4 ; 23 22 21 20
punpcklwd mm1, mm0 ; 11 01 10 00
punpckhwd mm2, mm0 ; 13 03 12 02
punpcklwd mm3, mm6 ; 31 21 30 20
punpckhwd mm4, mm6 ; 33 23 32 22
movq mm0, mm1 ; 11 01 10 00
movq mm5, mm2 ; 13 03 12 02
punpckldq mm0, mm3 ; 30 20 10 00
punpckhdq mm1, mm3 ; 31 21 11 01
punpckldq mm2, mm4 ; 32 22 12 02
punpckhdq mm5, mm4 ; 33 23 13 03
movq mm3, mm5 ; 33 23 13 03
psubw mm0, mm2 ; b1= 0-2
paddw mm2, mm2 ;
movq mm5, mm1
paddw mm2, mm0 ; a1 =0+2
pmulhw mm5, [GLOBAL(x_s1sqr2)];
paddw mm5, mm1 ; ip1 * sin(pi/8) * sqrt(2)
movq mm7, mm3 ;
pmulhw mm7, [GLOBAL(x_c1sqr2less1)];
paddw mm7, mm3 ; ip3 * cos(pi/8) * sqrt(2)
psubw mm7, mm5 ; c1
movq mm5, mm1
movq mm4, mm3
pmulhw mm5, [GLOBAL(x_c1sqr2less1)]
paddw mm5, mm1
pmulhw mm3, [GLOBAL(x_s1sqr2)]
paddw mm3, mm4
paddw mm3, mm5 ; d1
paddw mm0, [GLOBAL(fours)]
paddw mm2, [GLOBAL(fours)]
movq mm6, mm2 ; a1
movq mm4, mm0 ; b1
paddw mm2, mm3 ;0
paddw mm4, mm7 ;1
psubw mm0, mm7 ;2
psubw mm6, mm3 ;3
psraw mm2, 3
psraw mm0, 3
psraw mm4, 3
psraw mm6, 3
movq mm1, mm2 ; 03 02 01 00
movq mm3, mm4 ; 23 22 21 20
punpcklwd mm1, mm0 ; 11 01 10 00
punpckhwd mm2, mm0 ; 13 03 12 02
punpcklwd mm3, mm6 ; 31 21 30 20
punpckhwd mm4, mm6 ; 33 23 32 22
movq mm0, mm1 ; 11 01 10 00
movq mm5, mm2 ; 13 03 12 02
punpckldq mm0, mm3 ; 30 20 10 00
punpckhdq mm1, mm3 ; 31 21 11 01
punpckldq mm2, mm4 ; 32 22 12 02
punpckhdq mm5, mm4 ; 33 23 13 03
pxor mm7, mm7
movd mm4, [rdx]
punpcklbw mm4, mm7
paddsw mm0, mm4
packuswb mm0, mm7
movd [rdx], mm0
movd mm4, [rdx+rdi]
punpcklbw mm4, mm7
paddsw mm1, mm4
packuswb mm1, mm7
movd [rdx+rdi], mm1
movd mm4, [rdx+2*rdi]
punpcklbw mm4, mm7
paddsw mm2, mm4
packuswb mm2, mm7
movd [rdx+rdi*2], mm2
add rdx, rdi
movd mm4, [rdx+2*rdi]
punpcklbw mm4, mm7
paddsw mm5, mm4
packuswb mm5, mm7
movd [rdx+rdi*2], mm5
; begin epilog
pop rdi
RESTORE_GOT
UNSHADOW_ARGS
pop rbp
ret
SECTION_RODATA
align 16
x_s1sqr2:
times 4 dw 0x8A8C
align 16
x_c1sqr2less1:
times 4 dw 0x4E7B
align 16
fours:
times 4 dw 0x0004