www.pudn.com > X264_20060729.rar > mc-a2.asm
;*****************************************************************************
;* mc-a2.asm: h264 encoder library
;*****************************************************************************
;* Copyright (C) 2005 x264 project
;*
;* This program is free software; you can redistribute it and/or modify
;* it under the terms of the GNU General Public License as published by
;* the Free Software Foundation; either version 2 of the License, or
;* (at your option) any later version.
;*
;* This program is distributed in the hope that it will be useful,
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;* GNU General Public License for more details.
;*
;* You should have received a copy of the GNU General Public License
;* along with this program; if not, write to the Free Software
;* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
;*****************************************************************************
BITS 32
;=============================================================================
; Macros and other preprocessor constants
;=============================================================================
%include "i386inc.asm"
;=============================================================================
; Read only data
;=============================================================================
SECTION_RODATA
ALIGN 16
mmx_dw_one:
times 4 dw 16
mmx_dd_one:
times 2 dd 512
mmx_dw_20:
times 4 dw 20
mmx_dw_5:
times 4 dw -5
%assign twidth 0
%assign theight 4
%assign tdstp1 8
%assign tdstp2 12
%assign tdst1 16
%assign tdst2 20
%assign tsrc 24
%assign tsrcp 28
%assign toffset 32
%assign tbuffer 36
;=============================================================================
; Macros
;=============================================================================
%macro LOAD_4 9
movd %1, %5
movd %2, %6
movd %3, %7
movd %4, %8
punpcklbw %1, %9
punpcklbw %2, %9
punpcklbw %3, %9
punpcklbw %4, %9
%endmacro
%macro FILT_2 2
psubw %1, %2
psllw %2, 2
psubw %1, %2
%endmacro
%macro FILT_4 3
paddw %2, %3
psllw %2, 2
paddw %1, %2
psllw %2, 2
paddw %1, %2
%endmacro
%macro FILT_6 4
psubw %1, %2
psllw %2, 2
psubw %1, %2
paddw %1, %3
paddw %1, %4
psraw %1, 5
%endmacro
%macro FILT_ALL 1
LOAD_4 mm1, mm2, mm3, mm4, [%1], [%1 + ecx], [%1 + 2 * ecx], [%1 + ebx], mm0
FILT_2 mm1, mm2
movd mm5, [%1 + 4 * ecx]
movd mm6, [%1 + edx]
FILT_4 mm1, mm3, mm4
punpcklbw mm5, mm0
punpcklbw mm6, mm0
psubw mm1, mm5
psllw mm5, 2
psubw mm1, mm5
paddw mm1, mm6
%endmacro
;=============================================================================
; Code
;=============================================================================
SECTION .text
cglobal x264_horizontal_filter_mmxext
cglobal x264_center_filter_mmxext
;-----------------------------------------------------------------------------
;
; void x264_center_filter_mmxext( uint8_t *dst1, int i_dst1_stride,
; uint8_t *dst2, int i_dst2_stride,
; uint8_t *src, int i_src_stride,
; int i_width, int i_height );
;
;-----------------------------------------------------------------------------
ALIGN 16
x264_center_filter_mmxext :
push edi
push esi
push ebx
push ebp
mov edx, [esp + 40] ; src_stride
lea edx, [edx + edx + 18 + tbuffer]
sub esp, edx
mov [esp + toffset] ,edx
mov eax, [esp + edx + 20] ; dst1
mov [esp + tdst1] ,eax
mov eax, [esp + edx + 28] ; dst2
mov [esp + tdst2] ,eax
mov eax, [esp + edx + 44] ; width
mov [esp + twidth] ,eax
mov eax, [esp + edx + 48] ; height
mov [esp + theight] ,eax
mov eax, [esp + edx + 24] ; dst1_stride
mov [esp + tdstp1] ,eax
mov eax, [esp + edx + 32] ; dst2_stride
mov [esp + tdstp2] ,eax
mov ecx, [esp + edx + 40] ; src_stride
mov [esp + tsrcp] ,ecx
mov eax, [esp + edx + 36] ; src
sub eax, ecx
sub eax, ecx
mov [esp + tsrc] ,eax ; src - 2 * src_stride
lea ebx, [ecx + ecx * 2] ; 3 * src_stride
lea edx, [ecx + ecx * 4] ; 5 * src_stride
picpush ebx
picgetgot ebx
pxor mm0, mm0 ; 0 ---> mm0
loopcy:
mov edi, [picesp + tdst1]
lea ebp, [picesp + tbuffer]
mov esi, [picesp + tsrc]
movq mm7, [mmx_dw_one GOT_ebx]
picpop ebx
FILT_ALL esi
pshufw mm2, mm1, 0
movq [ebp + 8], mm1
movq [ebp], mm2
paddw mm1, mm7
psraw mm1, 5
packuswb mm1, mm1
movd [edi], mm1
mov eax, 8
add esi, 4
loopcx1:
FILT_ALL esi
movq [ebp + 2 * eax], mm1
paddw mm1, mm7
psraw mm1, 5
packuswb mm1, mm1
movd [edi + eax - 4], mm1
add esi, 4
add eax, 4
cmp eax, [esp + twidth]
jnz loopcx1
FILT_ALL esi
pshufw mm2, mm1, 7
movq [ebp + 2 * eax], mm1
movq [ebp + 2 * eax + 8], mm2
paddw mm1, mm7
psraw mm1, 5
packuswb mm1, mm1
movd [edi + eax - 4], mm1
mov esi, [esp + tsrc]
add esi, ecx
mov [esp + tsrc], esi
add edi, [esp + tdstp1]
mov [esp + tdst1], edi
mov edi, [esp + tdst2]
; mov eax, [esp + twidth]
sub eax, 4
picpush ebx
picgetgot ebx
loopcx2:
movq mm2, [picesp + 2 * eax + 2 + 4 + tbuffer]
movq mm3, [picesp + 2 * eax + 4 + 4 + tbuffer]
movq mm4, [picesp + 2 * eax + 6 + 4 + tbuffer]
movq mm5, [picesp + 2 * eax + 8 + 4 + tbuffer]
movq mm1, [picesp + 2 * eax + 4 + tbuffer]
movq mm6, [picesp + 2 * eax + 10 + 4 + tbuffer]
paddw mm2, mm5
paddw mm3, mm4
paddw mm1, mm6
movq mm5, [mmx_dw_20 GOT_ebx]
movq mm4, [mmx_dw_5 GOT_ebx]
movq mm6, mm1
pxor mm7, mm7
punpckhwd mm5, mm2
punpcklwd mm4, mm3
punpcklwd mm2, [mmx_dw_20 GOT_ebx]
punpckhwd mm3, [mmx_dw_5 GOT_ebx]
pcmpgtw mm7, mm1
pmaddwd mm2, mm4
pmaddwd mm3, mm5
punpcklwd mm1, mm7
punpckhwd mm6, mm7
paddd mm2, mm1
paddd mm3, mm6
paddd mm2, [mmx_dd_one GOT_ebx]
paddd mm3, [mmx_dd_one GOT_ebx]
psrad mm2, 10
psrad mm3, 10
packssdw mm2, mm3
packuswb mm2, mm0
movd [edi + eax], mm2
sub eax, 4
jge loopcx2
add edi, [picesp + tdstp2]
mov [picesp + tdst2], edi
dec dword [picesp + theight]
jnz loopcy
picpop ebx
add esp, [esp + toffset]
pop ebp
pop ebx
pop esi
pop edi
ret
;-----------------------------------------------------------------------------
;
; void x264_horizontal_filter_mmxext( uint8_t *dst, int i_dst_stride,
; uint8_t *src, int i_src_stride,
; int i_width, int i_height );
;
;-----------------------------------------------------------------------------
ALIGN 16
x264_horizontal_filter_mmxext :
push edi
push esi
mov edi, [esp + 12] ; dst
mov esi, [esp + 20] ; src
pxor mm0, mm0
picpush ebx
picgetgot ebx
movq mm7, [mmx_dw_one GOT_ebx]
picpop ebx
mov ecx, [esp + 32] ; height
sub esi, 2
loophy:
xor eax, eax
loophx:
prefetchnta [esi + eax + 48]
LOAD_4 mm1, mm2, mm3, mm4, [esi + eax], [esi + eax + 1], [esi + eax + 2], [esi + eax + 3], mm0
FILT_2 mm1, mm2
movd mm5, [esi + eax + 4]
movd mm6, [esi + eax + 5]
FILT_4 mm1, mm3, mm4
movd mm2, [esi + eax + 4]
movd mm3, [esi + eax + 6]
punpcklbw mm5, mm0
punpcklbw mm6, mm0
FILT_6 mm1, mm5, mm6, mm7
movd mm4, [esi + eax + 7]
movd mm5, [esi + eax + 8]
punpcklbw mm2, mm0
punpcklbw mm3, mm0 ; mm2(1), mm3(20), mm6(-5) ready
FILT_2 mm2, mm6
movd mm6, [esi + eax + 9]
punpcklbw mm4, mm0
punpcklbw mm5, mm0 ; mm2(1-5), mm3(20), mm4(20), mm5(-5) ready
FILT_4 mm2, mm3, mm4
punpcklbw mm6, mm0
FILT_6 mm2, mm5, mm6, mm7
packuswb mm1, mm2
movq [edi + eax], mm1
add eax, 8
cmp eax, [esp + 28] ; width
jnz loophx
add esi, [esp + 24] ; src_pitch
add edi, [esp + 16] ; dst_pitch
dec ecx
jnz loophy
pop esi
pop edi
ret