Independent JPEG Group's JPEG software release 6b
  with x86 SIMD extension for IJG JPEG library version 1.02
    == README ==
-----------------------------------------------------------

    ** Note **
The accompanying documents related to x86 SIMD extension are written in
Japanese. The English version of these documents is currently unavailable.
I apologize for this inconvenience to international programmers.

Most of the source code of the extension part is written in assembly
language. To compile the source, you need NASM (netwide assembler).
NASM is available from http://nasm.sourceforge.net/ or
http://sourceforge.net/project/showfiles.php?group_id=6208 .

At present, the x86 SIMD extension doesn't support 64-bit mode of
AMD64 (x86_64).

The x86 SIMD extension is an unofficial extension to the IJG JPEG
software. Please do not send any questions about this distribution
to the Independent JPEG Group.

For conditions of distribution and use, see the IJG's README file.
The same conditions apply to this SIMD-extended JPEG software.



ΥեȤ

  JPEG Υݡȥ饤֥ȤƹȤƤ Independent JPEG Group's
  JPEG library (libjpeg 饤֥) ˡIntel x86  CPU λ SIMD ̿
  Ѥ(롼)򿷤ɲä®¤ΤǤ
  MMX  SSE ʤɤ SIMD 黻ǽƤץåưȡ
  ꥸʥǤ libjpeg 饤֥Ӥ 23 ٤®٤ưޤ
  ޤSIMD ˰ͤʤ®¤⤤ĤܤƤꡢSIMD 黻λȤ
  ʤ췿CPUˤƤ⡢ꥸʥǤӤƽٹ®ưޤ

  JPEG ̡Ÿι®ŪȤƤޤư®ٺͥǤϤʤ
  ꥸʥǤƱʾη׻٤ĤȤͥ˹ͤɤ
  ƤޤºݡDCT黻ưDCTȤä硢ӡü
  ץ(h1v2)JPEGեŸƤϡ
  ꥸʥǤȣӥåȤʤ̤Фޤ嵭ΣĤ㳰ξ
  ꥸʥǤϹ(ٲ)Ƥޤ

  SIMD б˺ݤƤϡǽʸ¤ꡢꥸʥǤ libjpeg 饤֥Ȥ
  ߴʤ褦˹θƤޤΤǡۤȤɤξ硢ꥸʥ
  Ǥ򤽤Τޤ֤뤳ȤǽǤäˡͭ饤֥˴ؤƸС
  㳰(cygwin ξ)ϥꥸʥǤȥХʥ٥Ǥ
  ̸ߴޤΤǡΤޤޥꥸʥǤ֤뤳ȤǤޤ

  SIMD бƤʬϡʲΤȤꡧ

  ̽
    Ѵ(RGB->YCbCr)  : MMX or SSE2
    󥵥ץ      : MMX or SSE2
    DCTѴ()   : MMX or SSE2
    DCTѴ(®)     : MMX or SSE2
    DCTѴ(ư)     : 3DNow! or SSE (黻: MMX or SSE2)
    DCT̻Ҳ()     : MMX or SSE2
    DCT̻Ҳ(ư) : 3DNow! or SSE (黻: MMX or SSE2)

  Ÿ
    Ѵ(YCbCr->RGB)  : MMX or SSE2
    åץץ      : MMX or SSE2
    DCTѴ()   : MMX or SSE2
    DCTѴ(®)     : MMX or SSE2
    DCTѴ(ư)     : 3DNow! or SSE (黻: MMX or SSE2)
    DCTѴ(̾Ÿ)     : MMX or SSE2

  SSE2 ˤĤƤϡSIMD 黻ΤߤѤƤޤSIMD 
      ư黻ѤƤޤ󡣤ޤSSE3 ϻѤƤޤ
       JPEG 饤֥ˤƤϡSSE3 ѤƤư®ٸ
      ߤۤȤɤʤǡSSE3 򥵥ݡȤͽϤޤ

  Τۤˡ֥DCT롼(SIMD; ѴѴ)
  ˤꡢSIMD̿λȤʤ췿CPUǤ⽽٤ι®ԤǤޤ
  ˡŸǤΥϥեޥǥɥ롼ϡSIMD ˰ͤʤˡ
  ®¤Ƥޤ


бƤץåȥե

  Intel x86 CPU ˸ͭεǽѤƤޤΤǡꥸʥǤȤϰۤʤꡢ
  Intel x86 CPU Ӥθߴ CPU ѤƤ륷ƥ˸¤ޤ
  PowerPC ʤɤ Intel x86 ϰʳΥƥˤбƤޤ
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Ūˤϡ80386 ʹߤ Intel x86 CPU Ӥθߴ CPU ѤƤ
  ϡɥǡġ32bitեåȥɥ쥹⡼(ݸ⡼)Ѥ
  ץåȥե(OS)оݤǤˤϡWin32 (Windows 9x/NT)
  Ƽ PC-UNIX (linux  xBSD եߥʤ) ʤɤޤʤ
  AMD64 (EM64T) 64bit⡼ɴĶˤбƤޤ󡣤դ
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 SIMD ĥ IJG JPEG library ͭ

  ꥸʥǤ IJG JPEG library ǤϡѥΥץǡ
  8bitJPEG  12bitJPEG ξбޤ SIMD ĥǤ
  8bitJPEG Τߤбǡ12bitJPEG ˤбޤ󡣤ȤϤ
  12bitJPEG ϰѤʤɤüʬؤɻȤƤʤΤǡ
  ϾʤȻפޤ


Ȥ

  ޥ˥奢ϡʲΥեʬƤޤΤǡºݤλȤʤɤ
  ĤƤϡ򻲾ȤƤ

    simd_README.ja.txt   - Υե
    simd_filelist.ja.txt - ϿեΥեꥹ
    simd_install.ja.txt  - ѥλ
    simd_internal.ja.txt - SIMD ĥʬξܺ
    simd_cdjpeg.ja.txt   - SIMD  cjpeg/djpeg ˸ͭεǽβ
    simd_changes.ja.txt  - SIMD ĥʬβ


Ѿݡ

   SIMD ĥ IJG JPEG software λѾˤĤƤϡꥸʥǤ
  IJG JPEG software λѾ郎ŬѤޤܤϡƱ README
  ե(ʸ) LEGAL ISSUES ι򻲾ȤƤ

  嵭λѾƤη֤ˤʤޤΥեȥϡָ
  ޤޤǡ󶡤ƤΤǡŪʻѲǽŪ
  ФŬʤɤޤᡢʤݾڤ⤢ޤ
  ޤ(The Independent JPEG Group)¤(MIYASAKA Masaru)⡢
  ͳΤ鷺ܥեȥλѤˤäȯǡʤ»
  ĤƤ⡢ڤǤʤΤȤޤ

   SIMD ĥ IJG JPEG software ϡꥸʥ볫ȯ IJG Ȥϴط
  ʤȼ˳ĥԤʤäΤǤǤΤǡ SIMD ĥ IJG JPEG
  software ˴ؤ򡢥ꥸʥ볫ȯ (The Independent JPEG Group)
  ʤǤ

   SIMD ĥ IJG JPEG software ˴ؤƤϡ§ȤƥΡݡȤ
  Ƥޤ᡼ʤɤǤʤɤ򤤤ޤƤ⡢˲餫
  Ǥ櫓ǤϤޤΤǡΤ
  äˡʥꥸʥαʸޥ˥奢ޤƱΥޥ˥奢˲
  񤤤Ƥ䡢ѼԤΥեȥѼԤȤƤε­и­
  ؤ䡢ΤʤʤɤˤĤƤϡ򤤤ޤΤǡ
  餺λ



           E-Mail Address : alkaid@coral.ocn.ne.jp (ܺ /MIYASAKA Masaru)
[EOF]
