Imported from libpng-1.2.3.tar

libpng.3

@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "May 13, 2002"
+.TH LIBPNG 3 "May 21, 2002"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3rc6
+libpng \- Portable Network Graphics (PNG) Reference Library 1.2.3
 .SH SYNOPSIS
 \fI\fB
 
@@ -787,7 +787,7 @@ Following is a copy of the libpng.txt file that accompanies libpng.
 .SH LIBPNG.TXT
 libpng.txt - A description on how to use and modify libpng
 
- libpng version 1.2.3rc6 - May 13, 2002
+ libpng version 1.2.3 - May 21, 2002
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alum.rpi.edu>
  Copyright (c) 1998-2002 Glenn Randers-Pehrson
@@ -3088,18 +3088,17 @@ goes through callbacks that are user-settable.  The default routines are
 in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively.  To change
 these functions, call the appropriate png_set_*_fn() function.
 
-Memory allocation is done through the functions png_malloc(), png_zalloc(),
+Memory allocation is done through the functions png_malloc()
 and png_free().  These currently just call the standard C functions.  If
 your pointers can't access more then 64K at a time, you will want to set
 MAXSEG_64K in zlib.h.  Since it is unlikely that the method of handling
 memory allocation on a platform will change between applications, these
 functions must be modified in the library at compile time.  If you prefer
 to use a different method of allocating and freeing data, you can use
+png_create_read_struct_2() or png_create_write_struct_2() to register
+your own functions as described above.
 
-    png_set_mem_fn(png_structp png_ptr, png_voidp mem_ptr,
-       png_malloc_ptr malloc_fn, png_free_ptr free_fn)
-
-This function also provides a void pointer that can be retrieved via
+These functions also provide a void pointer that can be retrieved via
 
     mem_ptr=png_get_mem_ptr(png_ptr);
 
@@ -3109,7 +3108,7 @@ Your replacement memory functions must have prototypes as follows:
        png_size_t size);
     void free_fn(png_structp png_ptr, png_voidp ptr);
 
-Your malloc_fn() can return NULL in case of failure.  The png_malloc()
+Your malloc_fn() should return NULL in case of failure.  The png_malloc()
 function will call png_error() if it receives a NULL from the system
 memory allocator or from your replacement malloc_fn().
 
@@ -3638,13 +3637,13 @@ application:
 
 .SH IX. Y2K Compliance in libpng
 
-May 13, 2002
+May 21, 2002
 
 Since the PNG Development group is an ad-hoc body, we can't make
 an official declaration.
 
 This is your unofficial assurance that libpng from version 0.71 and
-upward through 1.2.3rc6 are Y2K compliant.  It is my belief that earlier
+upward through 1.2.3 are Y2K compliant.  It is my belief that earlier
 versions were also Y2K compliant.
 
 Libpng only has three year fields.  One is a 2-byte unsigned integer that
@@ -3832,7 +3831,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
 
-Libpng version 1.2.3rc6 - May 13, 2002:
+Libpng version 1.2.3 - May 21, 2002:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
 
@@ -3849,7 +3848,7 @@ included in the libpng distribution, the latter shall prevail.)
 If you modify libpng you may insert additional notices immediately following
 this sentence.
 
-libpng versions 1.0.7, July 1, 2000, through 1.2.3rc6, May 13, 2002, are
+libpng versions 1.0.7, July 1, 2000, through 1.2.3, May 21, 2002, are
 Copyright (c) 2000-2002 Glenn Randers-Pehrson, and are
 distributed according to the same disclaimer and license as libpng-1.0.6
 with the following individuals added to the list of Contributing Authors
@@ -3941,7 +3940,7 @@ certification mark of the Open Source Initiative.
 
 Glenn Randers-Pehrson
 randeg@alum.rpi.edu
-May 13, 2002
+May 21, 2002
 
 .\" end of man page