f244cbd5
 Hu Chunming
ffmpeg支持h264编码
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;*****************************************************************************
;* const-a.asm: x86 global constants
;*****************************************************************************
;* Copyright (C) 2010-2024 x264 project
;*
;* Authors: Loren Merritt <lorenm@u.washington.edu>
;* Fiona Glaser <fiona@x264.com>
;*
;* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
;*
;* This program is also available under a commercial proprietary license.
;* For more information, contact us at licensing@x264.com.
;*****************************************************************************
%include "x86inc.asm"
SECTION_RODATA 32
const pb_1, times 32 db 1
const hsub_mul, times 16 db 1, -1
const pw_1, times 16 dw 1
const pw_16, times 16 dw 16
const pw_32, times 16 dw 32
const pw_512, times 16 dw 512
const pw_00ff, times 16 dw 0x00ff
const pw_pixel_max,times 16 dw ((1 << BIT_DEPTH)-1)
const pw_0to15, dw 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
const pd_1, times 8 dd 1
const pd_0123, dd 0,1,2,3
const pd_4567, dd 4,5,6,7
const deinterleave_shufd, dd 0,4,1,5,2,6,3,7
const pb_unpackbd1, times 2 db 0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3
const pb_unpackbd2, times 2 db 4,4,4,4,5,5,5,5,6,6,6,6,7,7,7,7
const pb_01, times 8 db 0,1
const pb_0, times 16 db 0
const pb_a1, times 16 db 0xa1
const pb_3, times 16 db 3
const pb_shuf8x8c, db 0,0,0,0,2,2,2,2,4,4,4,4,6,6,6,6
const pw_2, times 8 dw 2
const pw_m2, times 8 dw -2
const pw_4, times 8 dw 4
const pw_8, times 8 dw 8
const pw_64, times 8 dw 64
const pw_256, times 8 dw 256
const pw_32_0, times 4 dw 32
times 4 dw 0
const pw_8000, times 8 dw 0x8000
const pw_3fff, times 8 dw 0x3fff
const pw_ppppmmmm, dw 1,1,1,1,-1,-1,-1,-1
const pw_ppmmppmm, dw 1,1,-1,-1,1,1,-1,-1
const pw_pmpmpmpm, dw 1,-1,1,-1,1,-1,1,-1
const pw_pmmpzzzz, dw 1,-1,-1,1,0,0,0,0
const pd_8, times 4 dd 8
const pd_32, times 4 dd 32
const pd_1024, times 4 dd 1024
const pd_ffff, times 4 dd 0xffff
const pw_ff00, times 8 dw 0xff00
const popcnt_table
%assign x 0
%rep 256
; population count
db ((x>>0)&1)+((x>>1)&1)+((x>>2)&1)+((x>>3)&1)+((x>>4)&1)+((x>>5)&1)+((x>>6)&1)+((x>>7)&1)
%assign x x+1
%endrep
const sw_64, dd 64
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