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jcparam.c	Compression parameter setting helper routines.
jctrans.c	API and library routines for transcoding compression.
jdtrans.c	API and library routines for transcoding decompression.

Compression side of the library:

jcinit.c	Initialization: determines which other modules to use.
jcmaster.c	Master control: setup and inter-pass sequencing logic.
jcmainct.c	Main buffer controller (preprocessor => JPEG compressor).
jcprepct.c	Preprocessor buffer controller.
jccoefct.c	Buffer controller for DCT coefficient buffer.
jccolor.c	Color space conversion.
jcsample.c	Downsampling.
jcdctmgr.c	DCT manager (DCT implementation selection & control).
jfdctint.c	Forward DCT using slow-but-accurate integer method.
jfdctfst.c	Forward DCT using faster, less accurate integer method.
jfdctflt.c	Forward DCT using floating-point arithmetic.
jchuff.c	Huffman entropy coding.
jcarith.c	Arithmetic entropy coding.
jcmarker.c	JPEG marker writing.
jdatadst.c	Data destination managers for memory and stdio output.

Decompression side of the library:

jdmaster.c	Master control: determines which other modules to use.
jdinput.c	Input controller: controls input processing modules.
jdmainct.c	Main buffer controller (JPEG decompressor => postprocessor).
jdcoefct.c	Buffer controller for DCT coefficient buffer.
jdpostct.c	Postprocessor buffer controller.
jdmarker.c	JPEG marker reading.
jdhuff.c	Huffman entropy decoding.
jdarith.c	Arithmetic entropy decoding.
jddctmgr.c	IDCT manager (IDCT implementation selection & control).
jidctint.c	Inverse DCT using slow-but-accurate integer method.
jidctfst.c	Inverse DCT using faster, less accurate integer method.
jidctflt.c	Inverse DCT using floating-point arithmetic.
jdsample.c	Upsampling.
jdcolor.c	Color space conversion.
jdmerge.c	Merged upsampling/color conversion (faster, lower quality).
jquant1.c	One-pass color quantization using a fixed-spacing colormap.
jquant2.c	Two-pass color quantization using a custom-generated colormap.
		Also handles one-pass quantization to an externally given map.
jdatasrc.c	Data source managers for memory and stdio input.

Support files for both compression and decompression:

jaricom.c	Tables for common use in arithmetic entropy encoding and
		decoding routines.
jerror.c	Standard error handling routines (application replaceable).
jmemmgr.c	System-independent (more or less) memory management code.
jutils.c	Miscellaneous utility routines.

jmemmgr.c relies on a system-dependent memory management module.  The IJG
distribution includes the following implementations of the system-dependent
module:

jmemnobs.c	"No backing store": assumes adequate virtual memory exists.
jmemansi.c	Makes temporary files with ANSI-standard routine tmpfile().
jmemname.c	Makes temporary files with program-generated file names.
jmemdos.c	Custom implementation for MS-DOS (16-bit environment only):
		can use extended and expanded memory as well as temp files.
jmemmac.c	Custom implementation for Apple Macintosh.

Exactly one of the system-dependent modules should be configured into an
installed JPEG library (see install.txt for hints about which one to use).
On unusual systems you may find it worthwhile to make a special
system-dependent memory manager.


Non-C source code files:

jmemdosa.asm	80x86 assembly code support for jmemdos.c; used only in
		MS-DOS-specific configurations of the JPEG library.


CJPEG/DJPEG/JPEGTRAN
====================

Include files:

cdjpeg.h	Declarations shared by cjpeg/djpeg/jpegtran modules.
cderror.h	Additional error and trace message codes for cjpeg et al.
transupp.h	Declarations for jpegtran support routines in transupp.c.

C source code files:

cjpeg.c		Main program for cjpeg.
djpeg.c		Main program for djpeg.
jpegtran.c	Main program for jpegtran.
cdjpeg.c	Utility routines used by all three programs.
rdcolmap.c	Code to read a colormap file for djpeg's "-map" switch.
rdswitch.c	Code to process some of cjpeg's more complex switches.
		Also used by jpegtran.
transupp.c	Support code for jpegtran: lossless image manipulations.

Image file reader modules for cjpeg:

rdbmp.c		BMP file input.
rdgif.c		GIF file input (now just a stub).
rdppm.c		PPM/PGM file input.
rdrle.c		Utah RLE file input.
rdtarga.c	Targa file input.

Image file writer modules for djpeg:

wrbmp.c		BMP file output.
wrgif.c		GIF file output (a mere shadow of its former self).
wrppm.c		PPM/PGM file output.
wrrle.c		Utah RLE file output.
wrtarga.c	Targa file output.


RDJPGCOM/WRJPGCOM
=================

C source code files:

rdjpgcom.c	Stand-alone rdjpgcom application.
wrjpgcom.c	Stand-alone wrjpgcom application.

These programs do not depend on the IJG library.  They do use