Commit 429190da authored by fallenstardust's avatar fallenstardust

更新jpeglib与libpng

parent 5ce00443
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......@@ -51,11 +51,11 @@ CONFIGFILES= jconfig.cfg jconfig.bcc jconfig.mc6 jconfig.dj jconfig.wat \
jconfig.vms
# Support scripts for configure
CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp \
missing ar-lib
CONFIGUREFILES= config.guess config.sub install-sh ltmain.sh depcomp missing
# Miscellaneous support files
OTHERFILES= jconfig.txt ckconfig.c jmemdosa.asm libjpeg.map
OTHERFILES= jconfig.txt ckconfig.c ansi2knr.c ansi2knr.1 jmemdosa.asm \
libjpeg.map
# Test support files
TESTFILES= testorig.jpg testimg.ppm testimg.bmp testimg.jpg testprog.jpg \
......
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.TH ANSI2KNR 1 "19 Jan 1996"
.SH NAME
ansi2knr \- convert ANSI C to Kernighan & Ritchie C
.SH SYNOPSIS
.I ansi2knr
[--varargs] input_file [output_file]
.SH DESCRIPTION
If no output_file is supplied, output goes to stdout.
.br
There are no error messages.
.sp
.I ansi2knr
recognizes function definitions by seeing a non-keyword identifier at the left
margin, followed by a left parenthesis, with a right parenthesis as the last
character on the line, and with a left brace as the first token on the
following line (ignoring possible intervening comments). It will recognize a
multi-line header provided that no intervening line ends with a left or right
brace or a semicolon. These algorithms ignore whitespace and comments, except
that the function name must be the first thing on the line.
.sp
The following constructs will confuse it:
.br
- Any other construct that starts at the left margin and follows the
above syntax (such as a macro or function call).
.br
- Some macros that tinker with the syntax of the function header.
.sp
The --varargs switch is obsolete, and is recognized only for
backwards compatibility. The present version of
.I ansi2knr
will always attempt to convert a ... argument to va_alist and va_dcl.
.SH AUTHOR
L. Peter Deutsch <ghost@aladdin.com> wrote the original ansi2knr and
continues to maintain the current version; most of the code in the current
version is his work. ansi2knr also includes contributions by Francois
Pinard <pinard@iro.umontreal.ca> and Jim Avera <jima@netcom.com>.
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.TH CJPEG 1 "23 November 2013"
.TH CJPEG 1 "28 August 2011"
.SH NAME
cjpeg \- compress an image file to a JPEG file
.SH SYNOPSIS
......@@ -53,12 +53,9 @@ you'll get a smaller JPEG file that takes less time to process.
Create RGB JPEG file.
Using this switch suppresses the conversion from RGB
colorspace input to the default YCbCr JPEG colorspace.
You can use this switch in combination with the
Use this switch in combination with the
.BI \-block " N"
switch (see below) for lossless JPEG coding.
See also the
.B \-rgb1
switch below.
.TP
.B \-optimize
Perform optimization of entropy encoding parameters. Without this, default
......@@ -169,8 +166,8 @@ Switches for advanced users:
.B \-arithmetic
Use arithmetic coding.
.B Caution:
arithmetic coded JPEG is not yet widely implemented, so many decoders will
be unable to view an arithmetic coded JPEG file at all.
arithmetic coded JPEG is not yet widely implemented, so many decoders will be
unable to view an arithmetic coded JPEG file at all.
.TP
.BI \-block " N"
Set DCT block size. All N from 1 to 16 are possible.
......@@ -184,41 +181,6 @@ An implementation of the JPEG SmartScale extension is required for this
feature. SmartScale enabled JPEG is not yet widely implemented, so many
decoders will be unable to view a SmartScale extended JPEG file at all.
.TP
.B \-rgb1
Create RGB JPEG file with reversible color transform.
Works like the
.B \-rgb
switch (see above) and inserts a simple reversible color transform
into the processing which significantly improves the compression.
Use this switch in combination with the
.BI \-block " N"
switch (see above) for lossless JPEG coding.
.B Caution:
A decoder with inverse color transform support is required for
this feature. Reversible color transform support is not yet
widely implemented, so many decoders will be unable to view
a reversible color transformed JPEG file at all.
.TP
.B \-bgycc
Create big gamut YCC JPEG file.
In this type of encoding the color difference components are quantized
further by a factor of 2 compared to the normal Cb/Cr values, thus creating
space to allow larger color values with higher saturation than the normal
gamut limits to be encoded. In order to compensate for the loss of color
fidelity compared to a normal YCC encoded file, the color quantization
tables can be adjusted accordingly. For example,
.B cjpeg \-bgycc \-quality
80,90 will give similar results as
.B cjpeg \-quality
80.
.B Caution:
For correct decompression a decoder with big gamut YCC support (JFIF
version 2) is required. An old decoder may or may not display a big
gamut YCC encoded JPEG file, depending on JFIF version check and
corresponding warning/error configuration. In case of a granted
decompression the old decoder will display the image with half
saturated colors.
.TP
.B \-dct int
Use integer DCT method (default).
.TP
......@@ -375,8 +337,7 @@ Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
.SH AUTHOR
Independent JPEG Group
.SH BUGS
GIF input files are no longer supported, to avoid the Unisys LZW patent
(now expired).
GIF input files are no longer supported, to avoid the Unisys LZW patent.
(Conversion of GIF files to JPEG is usually a bad idea anyway.)
.PP
Not all variants of BMP and Targa file formats are supported.
......
......@@ -2,7 +2,7 @@
* cjpeg.c
*
* Copyright (C) 1991-1998, Thomas G. Lane.
* Modified 2003-2013 by Guido Vollbeding.
* Modified 2003-2011 by Guido Vollbeding.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
......@@ -172,10 +172,6 @@ usage (void)
#ifdef DCT_SCALING_SUPPORTED
fprintf(stderr, " -block N DCT block size (1..16; default is 8)\n");
#endif
#if JPEG_LIB_VERSION_MAJOR >= 9
fprintf(stderr, " -rgb1 Create RGB JPEG file with reversible color transform\n");
fprintf(stderr, " -bgycc Create big gamut YCC JPEG file\n");
#endif
#ifdef DCT_ISLOW_SUPPORTED
fprintf(stderr, " -dct int Use integer DCT method%s\n",
(JDCT_DEFAULT == JDCT_ISLOW ? " (default)" : ""));
......@@ -314,27 +310,10 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
/* Force a monochrome JPEG file to be generated. */
jpeg_set_colorspace(cinfo, JCS_GRAYSCALE);
} else if (keymatch(arg, "rgb", 3) || keymatch(arg, "rgb1", 4)) {
} else if (keymatch(arg, "rgb", 3)) {
/* Force an RGB JPEG file to be generated. */
#if JPEG_LIB_VERSION_MAJOR >= 9
/* Note: Entropy table assignment in jpeg_set_colorspace depends
* on color_transform.
*/
cinfo->color_transform = arg[3] ? JCT_SUBTRACT_GREEN : JCT_NONE;
#endif
jpeg_set_colorspace(cinfo, JCS_RGB);
} else if (keymatch(arg, "bgycc", 5)) {
/* Force a big gamut YCC JPEG file to be generated. */
#if JPEG_LIB_VERSION_MAJOR >= 9 && \
(JPEG_LIB_VERSION_MAJOR > 9 || JPEG_LIB_VERSION_MINOR >= 1)
jpeg_set_colorspace(cinfo, JCS_BG_YCC);
#else
fprintf(stderr, "%s: sorry, BG_YCC colorspace not supported\n",
progname);
exit(EXIT_FAILURE);
#endif
} else if (keymatch(arg, "maxmemory", 3)) {
/* Maximum memory in Kb (or Mb with 'm'). */
long lval;
......@@ -349,7 +328,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
cinfo->mem->max_memory_to_use = lval * 1000L;
} else if (keymatch(arg, "nosmooth", 3)) {
/* Suppress fancy downsampling. */
/* Suppress fancy downsampling */
cinfo->do_fancy_downsampling = FALSE;
} else if (keymatch(arg, "optimize", 1) || keymatch(arg, "optimise", 1)) {
......@@ -435,7 +414,7 @@ parse_switches (j_compress_ptr cinfo, int argc, char **argv,
/* Scale the image by a fraction M/N. */
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u/%u",
if (sscanf(argv[argn], "%d/%d",
&cinfo->scale_num, &cinfo->scale_denom) != 2)
usage();
......
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......@@ -5,7 +5,7 @@
# Configure script for IJG libjpeg
#
AC_INIT([libjpeg], [9.1.0])
AC_INIT([libjpeg], [8.4.0])
# Directory where autotools helper scripts lives.
AC_CONFIG_AUX_DIR([.])
......@@ -21,13 +21,16 @@ AC_CANONICAL_TARGET
# Initialize Automake
# Don't require all the GNU mandated files
AM_INIT_AUTOMAKE([-Wall -Werror no-dist foreign])
AM_INIT_AUTOMAKE([-Wall -Werror -Wno-obsolete ansi2knr no-dist foreign])
# Make --enable-silent-rules the default.
# To get verbose build output you may configure
# with --disable-silent-rules or use "make V=1".
AM_SILENT_RULES([yes])
# This is required when using the de-ANSI-fication feature.
AM_C_PROTOTYPES
# Add configure option --enable-maintainer-mode which enables
# dependency checking and generation useful to package maintainers.
# This is made an option to avoid confusing end users.
......@@ -40,7 +43,6 @@ AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_PROG_LN_S
AM_PROG_AR
# Check if LD supports linker scripts,
# and define automake conditional HAVE_LD_VERSION_SCRIPT if so.
......@@ -223,10 +225,6 @@ int possibly_dupli_function () { return 1; }
# Run-time checks
AC_MSG_CHECKING([to see if char is signed])
AC_TRY_RUN([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#ifdef HAVE_PROTOTYPES
int is_char_signed (int arg)
#else
......@@ -256,10 +254,6 @@ int main() {
AC_MSG_CHECKING([to see if right shift is signed])
AC_TRY_RUN([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#ifdef HAVE_PROTOTYPES
int is_shifting_signed (long arg)
#else
......@@ -294,9 +288,6 @@ int main() {
AC_MSG_CHECKING([to see if fopen accepts b spec])
AC_TRY_RUN([
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
int main() {
if (fopen("conftestdata", "wb") != NULL)
......
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.TH DJPEG 1 "23 November 2013"
.TH DJPEG 1 "3 October 2009"
.SH NAME
djpeg \- decompress a JPEG file to an image file
.SH SYNOPSIS
......@@ -246,7 +246,7 @@ Communications of the ACM, April 1991 (vol. 34, no. 4), pp. 30-44.
.SH AUTHOR
Independent JPEG Group
.SH BUGS
To avoid the Unisys LZW patent (now expired),
To avoid the Unisys LZW patent,
.B djpeg
produces uncompressed GIF files. These are larger than they should be, but
are readable by standard GIF decoders.
......@@ -2,7 +2,7 @@
* djpeg.c
*
* Copyright (C) 1991-1997, Thomas G. Lane.
* Modified 2009-2013 by Guido Vollbeding.
* Modified 2009 by Guido Vollbeding.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
......@@ -298,7 +298,7 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
cinfo->mem->max_memory_to_use = lval * 1000L;
} else if (keymatch(arg, "nosmooth", 3)) {
/* Suppress fancy upsampling. */
/* Suppress fancy upsampling */
cinfo->do_fancy_upsampling = FALSE;
} else if (keymatch(arg, "onepass", 3)) {
......@@ -327,7 +327,7 @@ parse_switches (j_decompress_ptr cinfo, int argc, char **argv,
/* Scale the output image by a fraction M/N. */
if (++argn >= argc) /* advance to next argument */
usage();
if (sscanf(argv[argn], "%u/%u",
if (sscanf(argv[argn], "%d/%d",
&cinfo->scale_num, &cinfo->scale_denom) < 1)
usage();
......
IJG JPEG LIBRARY: FILE LIST
Copyright (C) 1994-2013, Thomas G. Lane, Guido Vollbeding.
Copyright (C) 1994-2009, Thomas G. Lane, Guido Vollbeding.
This file is part of the Independent JPEG Group's software.
For conditions of distribution and use, see the accompanying README file.
......@@ -197,8 +197,6 @@ config.guess
config.sub
depcomp
missing
ar-lib
compile
install-sh Install shell script for those Unix systems lacking one.
Makefile.in Makefile input for configure.
Makefile.am Source file for use with Automake to generate Makefile.in.
......@@ -208,6 +206,8 @@ mak*.* Sample makefiles for particular systems.
jconfig.* Sample jconfig.h for particular systems.
libjpeg.map Script to generate shared library with versioned symbols.
aclocal.m4 M4 macro definitions for use with Autoconf.
ansi2knr.c De-ANSIfier for pre-ANSI C compilers (courtesy of
L. Peter Deutsch and Aladdin Enterprises).
Test files (see install.txt for test procedure):
......
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2011-11-20.07; # UTC
scriptversion=2011-01-19.21; # UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
......@@ -35,7 +35,7 @@ scriptversion=2011-11-20.07; # UTC
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
......@@ -156,7 +156,7 @@ while test $# -ne 0; do
-s) stripcmd=$stripprog;;
-t) dst_arg=$2
# Protect names problematic for 'test' and other utilities.
# Protect names problematic for `test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
......@@ -190,7 +190,7 @@ if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
fi
shift # arg
dst_arg=$arg
# Protect names problematic for 'test' and other utilities.
# Protect names problematic for `test' and other utilities.
case $dst_arg in
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
......@@ -202,7 +202,7 @@ if test $# -eq 0; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call 'install-sh -d' without argument.
# It's OK to call `install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
......@@ -240,7 +240,7 @@ fi
for src
do
# Protect names problematic for 'test' and other utilities.
# Protect names problematic for `test' and other utilities.
case $src in
-* | [=\(\)!]) src=./$src;;
esac
......@@ -354,7 +354,7 @@ do
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writable bit of parent directory when it shouldn't.
# other-writeable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
......
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......@@ -2,7 +2,6 @@
* jdapistd.c
*
* Copyright (C) 1994-1996, Thomas G. Lane.
* Modified 2002-2013 by Guido Vollbeding.
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
......
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