mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-10-19 13:03:26 +00:00
6cb3ee80b3
The only systems which benefit from it are truely ancient 32bit x86s as all other systems use at least the SSE2 versions (this includes all x64 cpus (which is why this code is restricted to x86-32)). Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
154 lines
4.6 KiB
NASM
154 lines
4.6 KiB
NASM
;******************************************************************************
|
|
;* 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
|
|
|
|
; void ff_vp6_filter_diag4_<opt>(uint8_t *dst, uint8_t *src, ptrdiff_t stride,
|
|
; const int16_t h_weight[4], const int16_t v_weights[4])
|
|
INIT_XMM sse2
|
|
cglobal vp6_filter_diag4, 5, 7, 8
|
|
mov r5, rsp ; backup stack pointer
|
|
and rsp, ~(mmsize-1) ; align stack
|
|
sub rsp, 8*11
|
|
|
|
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
|