📄 predict-a.asm.svn-base
字号:
;*****************************************************************************;* predict-a.asm: h264 encoder library;*****************************************************************************;* Copyright (C) 2005 x264 project;*;* Authors: Loren Merritt <lorenm@u.washington.edu>;*;* 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"%macro SAVE_0_1 1 movq [%1] , mm0 movq [%1 + 8] , mm1%endmacro%macro SAVE_0_0 1 movq [%1] , mm0 movq [%1 + 8] , mm0%endmacroSECTION .rodata data align=16ALIGN 8pw_2: times 4 dw 2pw_8: times 4 dw 8pb_1: times 8 db 1pw_3210: dw 0 dw 1 dw 2 dw 3;=============================================================================; Code;=============================================================================SECTION .textcglobal predict_8x8_v_mmxextcglobal predict_8x8_dc_core_mmxextcglobal predict_8x8c_v_mmxcglobal predict_8x8c_dc_core_mmxextcglobal predict_8x8c_p_core_mmxcglobal predict_16x16_p_core_mmxcglobal predict_16x16_v_mmxcglobal predict_16x16_dc_core_mmxextcglobal predict_16x16_dc_top_mmxext%macro PRED8x8_LOWPASS 2 movq mm3, mm1 pavgb mm1, mm2 pxor mm2, mm3 movq %1 , %2 pand mm2, [pb_1 GLOBAL] psubusb mm1, mm2 pavgb %1 , mm1 ; %1 = (t[n-1] + t[n]*2 + t[n+1] + 2) >> 2%endmacro%macro PRED8x8_LOAD_TOP 0 mov edx, [picesp + 4] mov ecx, [picesp + 8] mov eax, [picesp +12] sub edx, ecx and eax, 12 movq mm1, [edx-1] movq mm2, [edx+1] cmp eax, byte 8 jge .have_topleft mov al, [edx] mov ah, [edx] pinsrw mm1, eax, 0 mov eax, [picesp + 12].have_topleft: and eax, byte 4 jne .have_topright mov al, [edx+7] mov ah, [edx+7] pinsrw mm2, eax, 3.have_topright: PRED8x8_LOWPASS mm0, [edx]%endmacro;-----------------------------------------------------------------------------;; void predict_8x8_v_mmxext( uint8_t *src, int i_stride, int i_neighbors );;-----------------------------------------------------------------------------ALIGN 16predict_8x8_v_mmxext: picpush ebx picgetgot ebx PRED8x8_LOAD_TOP lea eax, [ecx + 2*ecx] movq [edx + ecx], mm0 ; 0 movq [edx + 2*ecx], mm0 ; 1 movq [edx + 4*ecx], mm0 ; 3 movq [edx + 8*ecx], mm0 ; 7 add edx, eax movq [edx], mm0 ; 2 movq [edx + 2*ecx], mm0 ; 4 movq [edx + eax], mm0 ; 5 movq [edx + 4*ecx], mm0 ; 6 picpop ebx ret;-----------------------------------------------------------------------------;; void predict_8x8_dc_core_mmxext( uint8_t *src, int i_stride, int i_neighbors, uint8_t *pix_left );;;-----------------------------------------------------------------------------ALIGN 16predict_8x8_dc_core_mmxext: picpush ebx picgetgot ebx mov eax, [picesp + 16] movq mm1, [eax-1] movq mm2, [eax+1] PRED8x8_LOWPASS mm4, [eax] PRED8x8_LOAD_TOP pxor mm1, mm1 psadbw mm0, mm1 psadbw mm4, mm1 paddw mm0, [pw_8 GLOBAL] paddw mm0, mm4 psrlw mm0, 4 pshufw mm0, mm0, 0 packuswb mm0, mm0 lea eax, [ecx + 2*ecx] movq [edx + ecx], mm0 ; 0 movq [edx + 2*ecx], mm0 ; 1 movq [edx + 4*ecx], mm0 ; 3 movq [edx + 8*ecx], mm0 ; 7 add edx, eax movq [edx], mm0 ; 2 movq [edx + 2*ecx], mm0 ; 4 movq [edx + eax], mm0 ; 5 movq [edx + 4*ecx], mm0 ; 6 picpop ebx ret;-----------------------------------------------------------------------------;; void predict_8x8c_v_mmx( uint8_t *src, int i_stride );;-----------------------------------------------------------------------------ALIGN 16predict_8x8c_v_mmx : mov edx , [esp + 4] mov ecx , [esp + 8] sub edx , ecx ; edx <-- line -1 movq mm0 , [edx] movq [edx + ecx] , mm0 ; 0 movq [edx + 2 * ecx] , mm0 ; 1 movq [edx + 4 * ecx] , mm0 ; 3 movq [edx + 8 * ecx] , mm0 ; 7 add edx , ecx ; edx <-- line 0 movq [edx + 2 * ecx] , mm0 ; 2 movq [edx + 4 * ecx] , mm0 ; 4 lea edx , [edx + 4 * ecx] ; edx <-- line 4 movq [edx + ecx] , mm0 ; 5 movq [edx + 2 * ecx] , mm0 ; 6 ret;-----------------------------------------------------------------------------;; void predict_8x8c_dc_core_mmxext( uint8_t *src, int i_stride, int s2, int s3 );;-----------------------------------------------------------------------------ALIGN 16predict_8x8c_dc_core_mmxext: picpush ebx picgetgot ebx mov edx, [picesp + 4] mov ecx, [picesp + 8] sub edx, ecx lea eax, [ecx + 2*ecx] movq mm0, [edx] pxor mm1, mm1 pxor mm2, mm2 punpckhbw mm1, mm0 punpcklbw mm0, mm2 psadbw mm1, mm2 ; s1 psadbw mm0, mm2 ; s0 paddw mm0, [picesp + 12] pshufw mm2, [picesp + 16], 0 psrlw mm0, 3 paddw mm1, [pw_2 GLOBAL] movq mm3, mm2 pshufw mm1, mm1, 0 pshufw mm0, mm0, 0 ; dc0 (w) paddw mm3, mm1 psrlw mm3, 3 ; dc3 (w) psrlw mm2, 2 ; dc2 (w) psrlw mm1, 2 ; dc1 (w) packuswb mm0, mm1 ; dc0,dc1 (b) packuswb mm2, mm3 ; dc2,dc3 (b) movq [edx + ecx], mm0 ; 0 movq [edx + 2*ecx], mm0 ; 1 movq [edx + eax], mm0 ; 2 movq [edx + 4*ecx], mm0 ; 3 lea edx, [edx + 4*ecx] movq [edx + ecx], mm2 ; 4 movq [edx + 2*ecx], mm2 ; 5 movq [edx + eax], mm2 ; 6 movq [edx + 4*ecx], mm2 ; 7 picpop ebx ret;-----------------------------------------------------------------------------;; void predict_8x8c_p_core_mmx( uint8_t *src, int i_stride, int i00, int b, int c );;-----------------------------------------------------------------------------ALIGN 16predict_8x8c_p_core_mmx: picpush ebx picgetgot ebx mov edx, [picesp + 4] mov ecx, [picesp + 8] pshufw mm0, [picesp +12], 0 pshufw mm2, [picesp +16], 0 pshufw mm4, [picesp +20], 0 movq mm1, mm2 pmullw mm2, [pw_3210 GLOBAL] psllw mm1, 2 paddsw mm0, mm2 ; mm0 = {i+0*b, i+1*b, i+2*b, i+3*b} paddsw mm1, mm0 ; mm1 = {i+4*b, i+5*b, i+6*b, i+7*b} pxor mm5, mm5 mov eax, 8ALIGN 4.loop: movq mm6, mm0 movq mm7, mm1 psraw mm6, 5 psraw mm7, 5 pmaxsw mm6, mm5 pmaxsw mm7, mm5 packuswb mm6, mm7 movq [edx], mm6 paddsw mm0, mm4 paddsw mm1, mm4 add edx, ecx dec eax jg .loop nop picpop ebx ret;-----------------------------------------------------------------------------;; void predict_16x16_p_core_mmx( uint8_t *src, int i_stride, int i00, int b, int c );;-----------------------------------------------------------------------------ALIGN 16predict_16x16_p_core_mmx: picpush ebx picgetgot ebx mov edx, [picesp + 4] mov ecx, [picesp + 8] pshufw mm0, [picesp +12], 0 pshufw mm2, [picesp +16], 0 pshufw mm4, [picesp +20], 0 movq mm5, mm2 movq mm1, mm2 pmullw mm5, [pw_3210 GLOBAL] psllw mm2, 3 psllw mm1, 2 movq mm3, mm2 paddsw mm0, mm5 ; mm0 = {i+ 0*b, i+ 1*b, i+ 2*b, i+ 3*b} paddsw mm1, mm0 ; mm1 = {i+ 4*b, i+ 5*b, i+ 6*b, i+ 7*b} paddsw mm2, mm0 ; mm2 = {i+ 8*b, i+ 9*b, i+10*b, i+11*b} paddsw mm3, mm1 ; mm3 = {i+12*b, i+13*b, i+14*b, i+15*b} pxor mm5, mm5 mov eax, 16ALIGN 4.loop: movq mm6, mm0 movq mm7, mm1 psraw mm6, 5 psraw mm7, 5 pmaxsw mm6, mm5 pmaxsw mm7, mm5 packuswb mm6, mm7 movq [edx], mm6 movq mm6, mm2 movq mm7, mm3 psraw mm6, 5 psraw mm7, 5 pmaxsw mm6, mm5 pmaxsw mm7, mm5 packuswb mm6, mm7 movq [edx+8], mm6 paddsw mm0, mm4 paddsw mm1, mm4 paddsw mm2, mm4 paddsw mm3, mm4 add edx, ecx dec eax jg .loop nop picpop ebx ret;-----------------------------------------------------------------------------;; void predict_16x16_v_mmx( uint8_t *src, int i_stride );;-----------------------------------------------------------------------------ALIGN 16predict_16x16_v_mmx : mov edx, [esp + 4] mov ecx, [esp + 8] sub edx, ecx ; edx <-- line -1 movq mm0, [edx] movq mm1, [edx + 8] lea eax, [ecx + 2*ecx] ; eax <-- 3* stride SAVE_0_1 (edx + ecx) ; 0 SAVE_0_1 (edx + 2 * ecx) ; 1 SAVE_0_1 (edx + eax) ; 2 SAVE_0_1 (edx + 4 * ecx) ; 3 SAVE_0_1 (edx + 2 * eax) ; 5 SAVE_0_1 (edx + 8 * ecx) ; 7 SAVE_0_1 (edx + 4 * eax) ; 11 add edx, ecx ; edx <-- line 0 SAVE_0_1 (edx + 4 * ecx) ; 4 SAVE_0_1 (edx + 2 * eax) ; 6 SAVE_0_1 (edx + 8 * ecx) ; 8 SAVE_0_1 (edx + 4 * eax) ; 12 lea edx, [edx + 8 * ecx] ; edx <-- line 8 SAVE_0_1 (edx + ecx) ; 9 SAVE_0_1 (edx + 2 * ecx) ; 10 lea edx, [edx + 4 * ecx] ; edx <-- line 12 SAVE_0_1 (edx + ecx) ; 13 SAVE_0_1 (edx + 2 * ecx) ; 14 SAVE_0_1 (edx + eax) ; 15 ret;-----------------------------------------------------------------------------;; void predict_16x16_dc_core_mmxext( uint8_t *src, int i_stride, int i_dc_left );;-----------------------------------------------------------------------------%macro PRED16x16_DC 3 mov edx, [%3 + 4] mov ecx, [%3 + 8] sub edx, ecx ; edx <-- line -1 pxor mm0, mm0 pxor mm1, mm1 psadbw mm0, [edx] psadbw mm1, [edx + 8] paddusw mm0, mm1 paddusw mm0, %1 ; FIXME is stack alignment guaranteed? psrlw mm0, %2 ; dc push edi pshufw mm0, mm0, 0 lea eax, [ecx + 2*ecx] ; eax <-- 3* stride packuswb mm0, mm0 ; dc in bytes mov edi, 4ALIGN 4.loop: SAVE_0_0 (edx + ecx) ; 0 SAVE_0_0 (edx + 2 * ecx) ; 1 SAVE_0_0 (edx + eax) ; 2 SAVE_0_0 (edx + 4 * ecx) ; 3 dec edi lea edx, [edx + 4 * ecx] jg .loop pop edi%endmacroALIGN 16predict_16x16_dc_core_mmxext: PRED16x16_DC [esp+12], 5, esp retALIGN 16predict_16x16_dc_top_mmxext: picpush ebx picgetgot ebx PRED16x16_DC [pw_8 GLOBAL], 4, picesp picpop ebx ret⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -