;****************************************************************************** ;* MMX/SSE2-optimized functions for the VP6 decoder ;* Copyright (C) 2009 Sebastien Lucas <sebastien.lucas@gmail.com> ;* Copyright (C) 2009 Zuxy Meng <zuxy.meng@gmail.com> ;* ;* This file is part of FFmpeg. ;* ;* FFmpeg is free software; you can redistribute it and/or ;* modify it under the terms of the GNU Lesser General Public ;* License as published by the Free Software Foundation; either ;* version 2.1 of the License, or (at your option) any later version. ;* ;* FFmpeg 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 ;* Lesser General Public License for more details. ;* ;* You should have received a copy of the GNU Lesser General Public ;* License along with FFmpeg; if not, write to the Free Software ;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ;****************************************************************************** %include "libavutil/x86/x86util.asm" cextern pw_64 SECTION .text %macro DIAG4 6 %if mmsize == 8 movq m0, [%1+%2] movq m1, [%1+%3] movq m3, m0 movq m4, m1 punpcklbw m0, m7 punpcklbw m1, m7 punpckhbw m3, m7 punpckhbw m4, m7 pmullw m0, [rsp+8*11] ; src[x-8 ] * biweight [0] pmullw m1, [rsp+8*12] ; src[x ] * biweight [1] pmullw m3, [rsp+8*11] ; src[x-8 ] * biweight [0] pmullw m4, [rsp+8*12] ; src[x ] * biweight [1] paddw m0, m1 paddw m3, m4 movq m1, [%1+%4] movq m2, [%1+%5] movq m4, m1 movq m5, m2 punpcklbw m1, m7 punpcklbw m2, m7 punpckhbw m4, m7 punpckhbw m5, m7 pmullw m1, [rsp+8*13] ; src[x+8 ] * biweight [2] pmullw m2, [rsp+8*14] ; src[x+16] * biweight [3] pmullw m4, [rsp+8*13] ; src[x+8 ] * biweight [2] pmullw m5, [rsp+8*14] ; src[x+16] * biweight [3] paddw m1, m2 paddw m4, m5 paddsw m0, m1 paddsw m3, m4 paddsw m0, m6 ; Add 64 paddsw m3, m6 ; Add 64 psraw m0, 7 psraw m3, 7 packuswb m0, m3 movq [%6], m0 %else ; mmsize == 16 movq m0, [%1+%2] movq m1, [%1+%3] punpcklbw m0, m7 punpcklbw m1, m7 pmullw m0, m4 ; src[x-8 ] * biweight [0] pmullw m1, m5 ; src[x ] * biweight [1] paddw m0, m1 movq m1, [%1+%4] movq m2, [%1+%5] punpcklbw m1, m7 punpcklbw m2, m7 pmullw m1, m6 ; src[x+8 ] * biweight [2] pmullw m2, m3 ; src[x+16] * biweight [3] paddw m1, m2 paddsw m0, m1 paddsw m0, [pw_64] ; Add 64 psraw m0, 7 packuswb m0, m0 movq [%6], m0 %endif ; mmsize == 8/16 %endmacro %macro SPLAT4REGS 0 %if mmsize == 8 movq m5, m3 punpcklwd m3, m3 movq m4, m3 punpckldq m3, m3 punpckhdq m4, m4 punpckhwd m5, m5 movq m2, m5 punpckhdq m2, m2 punpckldq m5, m5 movq [rsp+8*11], m3 movq [rsp+8*12], m4 movq [rsp+8*13], m5 movq [rsp+8*14], m2 %else ; mmsize == 16 pshuflw m4, m3, 0x0 pshuflw m5, m3, 0x55 pshuflw m6, m3, 0xAA pshuflw m3, m3, 0xFF punpcklqdq m4, m4 punpcklqdq m5, m5 punpcklqdq m6, m6 punpcklqdq m3, m3 %endif ; mmsize == 8/16 %endmacro %macro vp6_filter_diag4 0 ; void ff_vp6_filter_diag4_<opt>(uint8_t *dst, uint8_t *src, int stride, ; const int16_t h_weight[4], const int16_t v_weights[4]) cglobal vp6_filter_diag4, 5, 7, 8 mov r5, rsp ; backup stack pointer and rsp, ~(mmsize-1) ; align stack %if mmsize == 16 sub rsp, 8*11 %else sub rsp, 8*15 movq m6, [pw_64] %endif %if ARCH_X86_64 movsxd r2, r2d %endif sub r1, r2 pxor m7, m7 movq m3, [r3] SPLAT4REGS mov r3, rsp mov r6, 11 .nextrow: DIAG4 r1, -1, 0, 1, 2, r3 add r3, 8 add r1, r2 dec r6 jnz .nextrow movq m3, [r4] SPLAT4REGS lea r3, [rsp+8] mov r6, 8 .nextcol: DIAG4 r3, -8, 0, 8, 16, r0 add r3, 8 add r0, r2 dec r6 jnz .nextcol mov rsp, r5 ; restore stack pointer RET %endmacro %if ARCH_X86_32 INIT_MMX mmx vp6_filter_diag4 %endif INIT_XMM sse2 vp6_filter_diag4