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Imported from libpng-1.0.2b.tar

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This commit is contained in:
Glenn Randers-Pehrson 1999-01-06 21:50:16 -06:00
parent 5c6aeb25c1
commit c944229859
33 changed files with 112 additions and 87 deletions
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13
ANNOUNCE
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@ -1,18 +1,19 @@
Libpng 1.0.2a - December 29, 1998 Libpng 1.0.2b - January 6, 1999
This is not intended to be a public release. It will be replaced This is not intended to be a public release. It will be replaced
within a few weeks by a public version or by another test version. within a few weeks by a public version or by another test version.
Changes since the last public release: Changes since the last public release:
libpng-1.0.2a: version 1.0.2a [December 30, 1998]
Replaced and extended code that was removed from png_set_filler() in 1.0.1a. Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
Fixed a bug in png_do_filler() that made it fail to write filler bytes in Fixed a bug in png_do_filler() that made it fail to write filler bytes in
the left-most pixel of each row (Kevin Bracey). the left-most pixel of each row (Kevin Bracey).
Changed "static pngcharp tIME_string" to "static char tIME_string[30]" Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
in pngtest.c (Duncan Simpson). in pngtest.c (Duncan Simpson).
Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
even when no tIME chunk was present in the source file.
Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
Fixed a problem in png_read_push_finish_row(), which would not skip some Fixed a problem in png_read_push_finish_row(), which would not skip some
passes that it should skip, for images that are less than 3 pixels high. passes that it should skip, for images that are less than 3 pixels high.
@ -31,6 +32,12 @@ libpng-1.0.2a:
Removed lines after Dynamic Dependencies" in makefile.aco . Removed lines after Dynamic Dependencies" in makefile.aco .
Revised makefile.dec to make a shared library (Jeremie Petit). Revised makefile.dec to make a shared library (Jeremie Petit).
Removed trailing blanks from all files. Removed trailing blanks from all files.
version 1.0.2b [January 6, 1999]
Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
which is obsolete.
Send comments/corrections/commendations to Send comments/corrections/commendations to
png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu

10
CHANGES
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@ -352,12 +352,14 @@ version 1.0.1e [June 6, 1998]
Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner). Added makefile.w32, for Microsoft C++ 4.0 and later (Tim Wegner).
version 1.0.2 [June 14, 1998] version 1.0.2 [June 14, 1998]
Fixed two bugs in makefile.bor . Fixed two bugs in makefile.bor .
version 1.0.2a [December 29, 1998] version 1.0.2a [December 30, 1998]
Replaced and extended code that was removed from png_set_filler() in 1.0.1a. Replaced and extended code that was removed from png_set_filler() in 1.0.1a.
Fixed a bug in png_do_filler() that made it fail to write filler bytes in Fixed a bug in png_do_filler() that made it fail to write filler bytes in
the left-most pixel of each row (Kevin Bracey). the left-most pixel of each row (Kevin Bracey).
Changed "static pngcharp tIME_string" to "static char tIME_string[30]" Changed "static pngcharp tIME_string" to "static char tIME_string[30]"
in pngtest.c (Duncan Simpson). in pngtest.c (Duncan Simpson).
Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk
even when no tIME chunk was present in the source file.
Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit.
Fixed a problem in png_read_push_finish_row(), which would not skip some Fixed a problem in png_read_push_finish_row(), which would not skip some
passes that it should skip, for images that are less than 3 pixels high. passes that it should skip, for images that are less than 3 pixels high.
@ -376,3 +378,9 @@ version 1.0.2a [December 29, 1998]
Removed lines after Dynamic Dependencies" in makefile.aco . Removed lines after Dynamic Dependencies" in makefile.aco .
Revised makefile.dec to make a shared library (Jeremie Petit). Revised makefile.dec to make a shared library (Jeremie Petit).
Removed trailing blanks from all files. Removed trailing blanks from all files.
version 1.0.2b [January 6, 1999]
Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h
Added "if" tests to silence complaints about unused png_ptr in png.h and png.c
Changed "check_if_png" function in example.c to return true (nonzero) if PNG.
Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig()
which is obsolete.

4
INSTALL
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@ -1,5 +1,5 @@
Installing libpng version 1.0.2a - December 29, 1998 Installing libpng version 1.0.2b - January 6, 1999
Before installing libpng, you must first install zlib. zlib Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be can usually be found wherever you got libpng. zlib can be
@ -10,7 +10,7 @@ zlib.h and zconf.h include files that correspond to the
version of zlib that's installed. version of zlib that's installed.
You can rename the directories that you downloaded (they You can rename the directories that you downloaded (they
might be called "libpng-1.0.2a" or "lpng103" and "zlib-1.1.3" might be called "libpng-1.0.2b" or "lpng103" and "zlib-1.1.3"
or "zlib113") so that you have directories called "zlib" and "libpng". or "zlib113") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this: Your directory structure should look like this:

4
KNOWNBUG
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@ -68,6 +68,10 @@ Known bugs and suggested enhancements in libpng-1.0.2
"static pngcharp tIME_string" should be changed to "static pngcharp tIME_string" should be changed to
"static char tIME_string[30]" in pngtest.c "static char tIME_string[30]" in pngtest.c
Also -- December 30, 1998 -- there are some misplaced brackets in
pngtest.c that cause pngtest to try to write a tIME chunk
even when no tIME chunk was present in the source file.
STATUS: Fixed in libpng-1.0.2a STATUS: Fixed in libpng-1.0.2a
8. August 24, 1998 -- BUG -- John Cromer 8. August 24, 1998 -- BUG -- John Cromer

2
README
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@ -1,4 +1,4 @@
README for libpng 1.0.2a - December 29, 1998 (shared library 2.1) README for libpng 1.0.2b - January 6, 1999 (shared library 2.1)
See the note about version numbers near the top of png.h See the note about version numbers near the top of png.h
See INSTALL for instructions on how to install libpng. See INSTALL for instructions on how to install libpng.

15
example.c
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@ -15,8 +15,11 @@
#include "png.h" #include "png.h"
/* Check to see if a file is a PNG file using png_sig_cmp(). Returns /* Check to see if a file is a PNG file using png_sig_cmp(). png_sig_cmp()
* non-zero if the image is a PNG, and 0 if it isn't a PNG. * returns zero if the image is a PNG and nonzero if it isn't a PNG.
*
* The function check_if_png() shown here, but not used, returns nonzero (true)
* if the file can be opened and is a PNG, 0 (false) otherwise.
* *
* If this call is successful, and you are going to keep the file open, * If this call is successful, and you are going to keep the file open,
* you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once * you should call png_set_sig_bytes(png_ptr, PNG_BYTES_TO_CHECK); once
@ -41,12 +44,14 @@ int check_if_png(char *file_name, FILE **fp)
if ((*fp = fopen(file_name, "rb")) != NULL); if ((*fp = fopen(file_name, "rb")) != NULL);
return 0; return 0;
/* Read in the signature bytes */ /* Read in some of the signature bytes */
if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK) if (fread(buf, 1, PNG_BYTES_TO_CHECK, *fp) != PNG_BYTES_TO_CHECK)
return 0; return 0;
/* Compare the first PNG_BYTES_TO_CHECK bytes of the signature. */ /* Compare the first PNG_BYTES_TO_CHECK bytes of the signature.
return(png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK)); Return nonzero (true) if they match */
return(!png_sig_cmp(buf, (png_size_t)0, PNG_BYTES_TO_CHECK));
} }
/* Read a PNG file. You may want to return an error code if the read /* Read a PNG file. You may want to return an error code if the read

16
libpng.3
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@ -1,6 +1,6 @@
.TH LIBPNG 3 "December 29, 1998" .TH LIBPNG 3 "January 6, 1999"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2a - December 29, 1998 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
.SH SYNOPSIS .SH SYNOPSIS
#include <png.h> #include <png.h>
@ -423,10 +423,10 @@ Following is a copy of the libpng.txt file that accompanies libpng.
.SH LIBPNG.TXT .SH LIBPNG.TXT
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.2a - December 29, 1998 libpng version 1.0.2b - January 6, 1999
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alumni.rpi.edu> <randeg@alumni.rpi.edu>
Copyright (c) 1998, Glenn Randers-Pehrson Copyright (c) 1998, 1999, Glenn Randers-Pehrson
For conditions of distribution and use, see copyright For conditions of distribution and use, see copyright
notice in png.h. notice in png.h.
@ -552,7 +552,7 @@ Customizing libpng.
return; return;
} }
fread(header, 1, number, fp); fread(header, 1, number, fp);
is_png = png_check_sig(header, 0, number); is_png = !png_sig_cmp(header, 0, number);
if (!is_png) if (!is_png)
{ {
return; return;
@ -2522,7 +2522,7 @@ possible without all of you.
Thanks to Frank J. T. Wojcik for helping with the documentation. Thanks to Frank J. T. Wojcik for helping with the documentation.
Libpng version 1.0.2a - December 29, 1998: Libpng version 1.0.2b - January 6, 1999:
Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu). Currently maintained by Glenn Randers-Pehrson (randeg@alumni.rpi.edu).
@ -2532,6 +2532,10 @@ Supported by the PNG development group
.SH COPYRIGHT NOTICE: .SH COPYRIGHT NOTICE:
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
Copyright (c) 1996, 1997 Andreas Dilger
Copyright (c) 1998, 1999, Glenn Randers-Pehrson
The PNG Reference Library (libpng) is supplied "AS IS". The Contributing The PNG Reference Library (libpng) is supplied "AS IS". The Contributing
Authors and Group 42, Inc. disclaim all warranties, expressed or implied, Authors and Group 42, Inc. disclaim all warranties, expressed or implied,
including, without limitation, the warranties of merchantability and of including, without limitation, the warranties of merchantability and of

6
libpng.txt
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@ -1,9 +1,9 @@
libpng.txt - A description on how to use and modify libpng libpng.txt - A description on how to use and modify libpng
libpng version 1.0.2a - December 29, 1998 libpng version 1.0.2b - January 6, 1999
Updated and distributed by Glenn Randers-Pehrson Updated and distributed by Glenn Randers-Pehrson
<randeg@alumni.rpi.edu> <randeg@alumni.rpi.edu>
Copyright (c) 1998, Glenn Randers-Pehrson Copyright (c) 1998, 1999, Glenn Randers-Pehrson
For conditions of distribution and use, see copyright For conditions of distribution and use, see copyright
notice in png.h. notice in png.h.
@ -129,7 +129,7 @@ Customizing libpng.
return; return;
} }
fread(header, 1, number, fp); fread(header, 1, number, fp);
is_png = png_check_sig(header, 0, number); is_png = !png_sig_cmp(header, 0, number);
if (!is_png) if (!is_png)
{ {
return; return;

4
libpngpf.3
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@ -1,6 +1,6 @@
.TH LIBPNGPF 3 "December 29, 1998" .TH LIBPNGPF 3 "January 6, 1999"
.SH NAME .SH NAME
libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2a - December 29, 1998 libpng \- Portable Network Graphics (PNG) Reference Library 1.0.2b - January 6, 1999
(private functions) (private functions)
.SH SYNOPSIS .SH SYNOPSIS
#include <png.h> #include <png.h>

2
png.5
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@ -1,4 +1,4 @@
.TH PNG 5 "December 29, 1998" .TH PNG 5 "January 6, 1999"
.SH NAME .SH NAME
png \- Portable Network Graphics (PNG) format png \- Portable Network Graphics (PNG) format
.SH DESCRIPTION .SH DESCRIPTION

17
png.c
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@ -1,10 +1,10 @@
/* png.c - location for general purpose libpng functions /* png.c - location for general purpose libpng functions
* *
* libpng version 1.0.2a - December 29, 1998 * libpng version 1.0.2b - January 6, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999, Glenn Randers-Pehrson
* *
*/ */
@ -16,7 +16,7 @@
* string defined in png.h. * string defined in png.h.
*/ */
char png_libpng_ver[12] = "1.0.2a"; char png_libpng_ver[12] = "1.0.2b";
/* Place to hold the signature string for a PNG file. */ /* Place to hold the signature string for a PNG file. */
png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10}; png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
@ -115,8 +115,8 @@ png_sig_cmp(png_bytep sig, png_size_t start, png_size_t num_to_check)
} }
/* (Obsolete) function to check signature bytes. It does not allow one /* (Obsolete) function to check signature bytes. It does not allow one
* to check a partial signature. This function will be removed in the * to check a partial signature. This function might be removed in the
* future - use png_sig_cmp(). * future - use png_sig_cmp(). Returns true (nonzero) if the file is a PNG.
*/ */
int int
png_check_sig(png_bytep sig, int num) png_check_sig(png_bytep sig, int num)
@ -350,9 +350,10 @@ png_convert_to_rfc1123(png_structp png_ptr, png_timep ptime)
png_charp png_charp
png_get_copyright(png_structp png_ptr) png_get_copyright(png_structp png_ptr)
{ {
return("\n libpng version 1.0.2a - December 29, 1998\n\ if(png_ptr == NULL)
/* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.2b - January 6, 1999\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\ Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\ Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1998, Glenn Randers-Pehrson\n"); Copyright (c) 1998, 1999, Glenn Randers-Pehrson\n");
} }

19
png.h
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@ -1,10 +1,10 @@
/* png.h - header file for PNG reference library /* png.h - header file for PNG reference library
* *
* libpng version 1.0.2a - December 29, 1998 * libpng version 1.0.2b - January 6, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* Note about libpng version numbers: * Note about libpng version numbers:
* *
@ -119,7 +119,7 @@ extern "C" {
*/ */
/* Version information for png.h - this should match the version in png.c */ /* Version information for png.h - this should match the version in png.c */
#define PNG_LIBPNG_VER_STRING "1.0.2a" #define PNG_LIBPNG_VER_STRING "1.0.2b"
/* Careful here. At one time, Guy wanted to use 082, but that would be octal. /* Careful here. At one time, Guy wanted to use 082, but that would be octal.
* We must not include leading zeros. * We must not include leading zeros.
@ -1490,12 +1490,16 @@ extern PNG_EXPORT(void,png_set_tRNS) PNGARG((png_structp png_ptr,
#endif #endif
extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_copyright) PNGARG((png_structp png_ptr));
#ifdef PNG_NO_EXTERN
extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr)); extern PNG_EXPORT(png_charp,png_get_header_version) PNGARG((png_structp png_ptr));
#ifdef PNG_NO_EXTERN
/* this only gets included in png.c */
png_charp png_charp
png_get_header_version(png_structp png_ptr) png_get_header_version(png_structp png_ptr)
{ {
return("\n libpng version 1.0.2a - December 29, 1998 (header)\n"); if(png_ptr == NULL)
/* silence compiler warning about unused png_ptr */ ;
return("\n libpng version 1.0.2b - January 6, 1999 (header)\n");
} }
#endif #endif
@ -2160,16 +2164,11 @@ PNG_EXTERN void png_push_read_zTXt PNGARG((png_structp png_ptr,
#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */ #endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
#endif
#endif /* PNG_INTERNAL */ #endif /* PNG_INTERNAL */
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif
#ifdef PNG_NO_EXTERN
/* do not put anything past this line */ /* do not put anything past this line */
#endif /* _PNG_H */ #endif /* _PNG_H */

4
pngconf.h
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@ -1,11 +1,11 @@
/* pngconf.h - machine configurable file for libpng /* pngconf.h - machine configurable file for libpng
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999, Glenn Randers-Pehrson
*/ */
/* Any machine specific code is near the front of this file, so if you /* Any machine specific code is near the front of this file, so if you

9
pngerror.c
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@ -1,11 +1,11 @@
/* pngerror.c - stub functions for i/o and memory allocation /* pngerror.c - stub functions for i/o and memory allocation
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file provides a location for all error handling. Users who * This file provides a location for all error handling. Users who
* need special error handling are expected to write replacement functions * need special error handling are expected to write replacement functions
@ -136,12 +136,11 @@ png_default_error(png_structp png_ptr, png_const_charp message)
static void static void
png_default_warning(png_structp png_ptr, png_const_charp message) png_default_warning(png_structp png_ptr, png_const_charp message)
{ {
if (png_ptr == NULL)
return;
#ifndef PNG_NO_CONSOLE_IO #ifndef PNG_NO_CONSOLE_IO
fprintf(stderr, "libpng warning: %s\n", message); fprintf(stderr, "libpng warning: %s\n", message);
#endif #endif
if (png_ptr == NULL)
return;
} }
/* This function is called when the application wants to use another method /* This function is called when the application wants to use another method

4
pngget.c
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@ -1,11 +1,11 @@
/* pngget.c - retrieval of values from info struct /* pngget.c - retrieval of values from info struct
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL

4
pngmem.c
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@ -1,11 +1,11 @@
/* pngmem.c - stub functions for memory allocation /* pngmem.c - stub functions for memory allocation
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file provides a location for all memory allocation. Users who * This file provides a location for all memory allocation. Users who
* need special memory handling are expected to supply replacement * need special memory handling are expected to supply replacement

4
pngpread.c
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@ -1,11 +1,11 @@
/* pngpread.c - read a png file in push mode /* pngpread.c - read a png file in push mode
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL

8
pngread.c
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@ -1,11 +1,11 @@
/* pngread.c - read a PNG file /* pngread.c - read a PNG file
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file contains routines that an application calls directly to * This file contains routines that an application calls directly to
* read a PNG file or stream. * read a PNG file or stream.
@ -530,7 +530,7 @@ png_read_row(png_structp png_ptr, png_bytep row, png_bytep dsp_row)
* not called png_set_interlace_handling(), the display_row buffer will * not called png_set_interlace_handling(), the display_row buffer will
* be ignored, so pass NULL to it. * be ignored, so pass NULL to it.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2a. * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
*/ */
void void
@ -579,7 +579,7 @@ png_read_rows(png_structp png_ptr, png_bytepp row,
* only call this function once. If you desire to have an image for * only call this function once. If you desire to have an image for
* each pass of a interlaced image, use png_read_rows() instead. * each pass of a interlaced image, use png_read_rows() instead.
* *
* [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2a. * [*] png_handle_alpha() does not exist yet, as of libpng version 1.0.2b.
*/ */
void void
png_read_image(png_structp png_ptr, png_bytepp image) png_read_image(png_structp png_ptr, png_bytepp image)

4
pngrio.c
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@ -1,11 +1,11 @@
/* pngrio.c - functions for data input /* pngrio.c - functions for data input
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file provides a location for all input. Users who need * This file provides a location for all input. Users who need
* special handling are expected to write a function that has the same * special handling are expected to write a function that has the same

4
pngrtran.c
View File

@ -1,11 +1,11 @@
/* pngrtran.c - transforms the data in a row for PNG readers /* pngrtran.c - transforms the data in a row for PNG readers
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file contains functions optionally called by an application * This file contains functions optionally called by an application
* in order to tell libpng how to handle data when reading a PNG. * in order to tell libpng how to handle data when reading a PNG.

4
pngrutil.c
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@ -1,11 +1,11 @@
/* pngrutil.c - utilities to read a PNG file /* pngrutil.c - utilities to read a PNG file
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file contains routines that are only called from within * This file contains routines that are only called from within
* libpng itself during the course of reading an image. * libpng itself during the course of reading an image.

4
pngset.c
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@ -1,11 +1,11 @@
/* pngset.c - storage of image information into info struct /* pngset.c - storage of image information into info struct
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* The functions here are used during reads to store data from the file * The functions here are used during reads to store data from the file
* into the info struct, and during writes to store application data * into the info struct, and during writes to store application data

8
pngtest.c
View File

@ -1,11 +1,11 @@
/* pngtest.c - a simple test program to test libpng /* pngtest.c - a simple test program to test libpng
* *
* libpng 1.0.2a -December 29, 1998 * libpng 1.0.2b -January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This program reads in a PNG image, writes it out again, and then * This program reads in a PNG image, writes it out again, and then
* compares the two files. If the files are identical, this shows that * compares the two files. If the files are identical, this shows that
@ -735,16 +735,14 @@ test_one_file(PNG_CONST char *inname, PNG_CONST char *outname)
if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) if (png_get_tIME(read_ptr, read_info_ptr, &mod_time))
{ {
png_set_tIME(write_ptr, write_info_ptr, mod_time); png_set_tIME(write_ptr, write_info_ptr, mod_time);
}
#if defined(PNG_TIME_RFC1123_SUPPORTED) #if defined(PNG_TIME_RFC1123_SUPPORTED)
{
/* we have to use png_strcpy instead of "=" because the string /* we have to use png_strcpy instead of "=" because the string
pointed to by png_convert_to_rfc1123() gets free'ed before pointed to by png_convert_to_rfc1123() gets free'ed before
we use it */ we use it */
png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time)); png_strcpy(tIME_string,png_convert_to_rfc1123(read_ptr, mod_time));
tIME_chunk_present++; tIME_chunk_present++;
}
#endif /* PNG_TIME_RFC1123_SUPPORTED */ #endif /* PNG_TIME_RFC1123_SUPPORTED */
}
} }
#endif #endif
#if defined(PNG_READ_tRNS_SUPPORTED) && defined(PNG_WRITE_tRNS_SUPPORTED) #if defined(PNG_READ_tRNS_SUPPORTED) && defined(PNG_WRITE_tRNS_SUPPORTED)

4
pngtrans.c
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@ -1,11 +1,11 @@
/* pngtrans.c - transforms the data in a row (used by both readers and writers) /* pngtrans.c - transforms the data in a row (used by both readers and writers)
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL

4
pngwio.c
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@ -1,11 +1,11 @@
/* pngwio.c - functions for data output /* pngwio.c - functions for data output
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
* *
* This file provides a location for all output. Users who need * This file provides a location for all output. Users who need
* special handling are expected to write functions that have the same * special handling are expected to write functions that have the same

4
pngwrite.c
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@ -1,11 +1,11 @@
/* pngwrite.c - general routines to write a PNG file /* pngwrite.c - general routines to write a PNG file
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
/* get internal access to png.h */ /* get internal access to png.h */

4
pngwtran.c
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@ -1,11 +1,11 @@
/* pngwtran.c - transforms the data in a row for PNG writers /* pngwtran.c - transforms the data in a row for PNG writers
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL

4
pngwutil.c
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@ -1,11 +1,11 @@
/* pngwutil.c - utilities to write a PNG file /* pngwutil.c - utilities to write a PNG file
* *
* libpng 1.0.2a - December 29, 1998 * libpng 1.0.2b - January 6, 1999
* For conditions of distribution and use, see copyright notice in png.h * For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc. * Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger * Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, Glenn Randers-Pehrson * Copyright (c) 1998, 1999 Glenn Randers-Pehrson
*/ */
#define PNG_INTERNAL #define PNG_INTERNAL

2
scripts/makefile.dec
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@ -14,7 +14,7 @@ ZLIBINC=../zlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.2a PNGMIN = 1.0.2b
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
CC=cc CC=cc

2
scripts/makefile.lnx
View File

@ -32,7 +32,7 @@ RANLIB=ranlib
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.2a PNGMIN = 1.0.2b
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.s2x
View File

@ -31,7 +31,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.2a PNGMIN = 1.0.2b
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/makefile.sco
View File

@ -25,7 +25,7 @@ RANLIB=echo
# read libpng.txt or png.h to see why PNGMAJ is 2. You should not # read libpng.txt or png.h to see why PNGMAJ is 2. You should not
# have to change it. # have to change it.
PNGMAJ = 2 PNGMAJ = 2
PNGMIN = 1.0.2a PNGMIN = 1.0.2b
PNGVER = $(PNGMAJ).$(PNGMIN) PNGVER = $(PNGMAJ).$(PNGMIN)
INCPATH=$(prefix)/include INCPATH=$(prefix)/include

2
scripts/pngdef.pas
View File

@ -3,7 +3,7 @@ unit pngdef;
interface interface
const const
PNG_LIBPNG_VER_STRING = '1.0.2a'; PNG_LIBPNG_VER_STRING = '1.0.2b';
PNG_LIBPNG_VER = 10001; PNG_LIBPNG_VER = 10001;
type type