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ffmpeg-4.2.2/libavcodec/x86/proresdsp.asm 1.87 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  ;******************************************************************************
  ;* x86-SIMD-optimized IDCT for prores
  ;* this is identical to "simple" IDCT written by Michael Niedermayer
  ;* except for the clip range
  ;*
  ;* Copyright (c) 2011 Ronald S. Bultje <rsbultje@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
  ;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  ;******************************************************************************
  
  %include "libavutil/x86/x86util.asm"
  
  %if ARCH_X86_64
  
  SECTION_RODATA
  
  pw_88:      times 8 dw 0x2008
  cextern pw_1
  cextern pw_4
  cextern pw_1019
  ; Below are defined in simple_idct10.asm built from selecting idctdsp
  cextern w4_plus_w2_hi
  cextern w4_min_w2_hi
  cextern w4_plus_w6_hi
  cextern w4_min_w6_hi
  cextern w1_plus_w3_hi
  cextern w3_min_w1_hi
  cextern w7_plus_w3_hi
  cextern w3_min_w7_hi
  cextern w1_plus_w5
  cextern w5_min_w1
  cextern w5_plus_w7
  cextern w7_min_w5
  
  %include "libavcodec/x86/simple_idct10_template.asm"
  
  SECTION .text
  
  define_constants _hi
  
  %macro idct_fn 0
  cglobal prores_idct_put_10, 4, 4, 15, pixels, lsize, block, qmat
      IDCT_FN    pw_1, 15, pw_88, 18, "put", pw_4, pw_1019, r3
      RET
  %endmacro
  
  INIT_XMM sse2
  idct_fn
  %if HAVE_AVX_EXTERNAL
  INIT_XMM avx
  idct_fn
  %endif
  
  %endif