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ffmpeg-4.2.2/libavcodec/x86/jpeg2000dsp.asm 3.93 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  ;******************************************************************************
  ;* SIMD-optimized JPEG2000 DSP functions
  ;* Copyright (c) 2014 Nicolas Bertrand
  ;* Copyright (c) 2015 James Almer
  ;*
  ;* 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"
  
  SECTION_RODATA 32
  
  pf_ict0: times 8 dd 1.402
  pf_ict1: times 8 dd 0.34413
  pf_ict2: times 8 dd 0.71414
  pf_ict3: times 8 dd 1.772
  
  SECTION .text
  
  ;***********************************************************************
  ; ff_ict_float_<opt>(float *src0, float *src1, float *src2, int csize)
  ;***********************************************************************
  %macro ICT_FLOAT 1
  cglobal ict_float, 4, 4, %1, src0, src1, src2, csize
      shl  csized, 2
      add   src0q, csizeq
      add   src1q, csizeq
      add   src2q, csizeq
      neg  csizeq
      movaps   m6, [pf_ict0]
      movaps   m7, [pf_ict1]
      %define ICT0 m6
      %define ICT1 m7
  
  %if ARCH_X86_64
      movaps   m8, [pf_ict2]
      %define ICT2 m8
  %if cpuflag(avx)
      movaps   m3, [pf_ict3]
      %define ICT3 m3
  %else
      movaps   m9, [pf_ict3]
      %define ICT3 m9
  %endif
  
  %else ; ARCH_X86_32
      %define ICT2 [pf_ict2]
  %if cpuflag(avx)
      movaps   m3, [pf_ict3]
      %define ICT3 m3
  %else
      %define ICT3 [pf_ict3]
  %endif
  
  %endif ; ARCH
  
  align 16
  .loop:
      movaps   m0, [src0q+csizeq]
      movaps   m1, [src1q+csizeq]
      movaps   m2, [src2q+csizeq]
  
  %if cpuflag(fma4) || cpuflag(fma3)
  %if cpuflag(fma4)
      fnmaddps  m5, m1, ICT1, m0
      fmaddps   m4, m2, ICT0, m0
  %else ; fma3
      movaps    m5, m1
      movaps    m4, m2
      fnmaddps  m5, m5, ICT1, m0
      fmaddps   m4, m4, ICT0, m0
  %endif
      fmaddps   m0, m1, ICT3, m0
      fnmaddps  m5, m2, ICT2, m5
  %else ; non FMA
  %if cpuflag(avx)
      mulps    m5, m1, ICT1
      mulps    m4, m2, ICT0
      mulps    m1, m1, ICT3
      mulps    m2, m2, ICT2
      subps    m5, m0, m5
  %else ; sse
      movaps   m3, m1
      movaps   m4, m2
      movaps   m5, m0
      mulps    m3, ICT1
      mulps    m4, ICT0
      mulps    m1, ICT3
      mulps    m2, ICT2
      subps    m5, m3
  %endif
      addps    m4, m4, m0
      addps    m0, m0, m1
      subps    m5, m5, m2
  %endif
  
      movaps   [src0q+csizeq], m4
      movaps   [src2q+csizeq], m0
      movaps   [src1q+csizeq], m5
      add  csizeq, mmsize
      jl .loop
      REP_RET
  %endmacro
  
  INIT_XMM sse
  ICT_FLOAT 10
  INIT_YMM avx
  ICT_FLOAT 9
  %if HAVE_FMA4_EXTERNAL
  INIT_XMM fma4
  ICT_FLOAT 9
  %endif
  INIT_YMM fma3
  ICT_FLOAT 9
  
  ;***************************************************************************
  ; ff_rct_int_<opt>(int32_t *src0, int32_t *src1, int32_t *src2, int csize)
  ;***************************************************************************
  %macro RCT_INT 0
  cglobal rct_int, 4, 4, 4, src0, src1, src2, csize
      shl  csized, 2
      add   src0q, csizeq
      add   src1q, csizeq
      add   src2q, csizeq
      neg  csizeq
  
  align 16
  .loop:
      mova   m1, [src1q+csizeq]
      mova   m2, [src2q+csizeq]
      mova   m0, [src0q+csizeq]
      paddd  m3, m1, m2
      psrad  m3, 2
      psubd  m0, m3
      paddd  m1, m0
      paddd  m2, m0
      mova   [src1q+csizeq], m0
      mova   [src2q+csizeq], m1
      mova   [src0q+csizeq], m2
      add  csizeq, mmsize
      jl .loop
      REP_RET
  %endmacro
  
  INIT_XMM sse2
  RCT_INT
  %if HAVE_AVX2_EXTERNAL
  INIT_YMM avx2
  RCT_INT
  %endif