Imported from libpng-1.0.5c.tar

libpng.3

@@ -1,6 +1,6 @@
-.TH LIBPNG 3 "October 23, 1999"
+.TH LIBPNG 3 "November 27, 1999"
 .SH NAME
-libpng \- Portable Network Graphics (PNG) Reference Library 1.0.5a - October 23, 1999
+libpng \- Portable Network Graphics (PNG) Reference Library 1.0.5c - November 27, 1999
 .SH SYNOPSIS
 \fI\fB
 
@@ -128,6 +128,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.5a - October 23,
 
 \fI\fB
 
+\fBpng_byte png_get_header_ver (png_structp \fIpng_ptr\fP\fB);\fP
+
+\fI\fB
+
 \fBpng_byte png_get_header_version (png_structp \fIpng_ptr\fP\fB);\fP
 
 \fI\fB
@@ -156,6 +160,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.5a - October 23,
 
 \fI\fB
 
+\fBpng_byte png_get_libpng_ver (png_structp \fIpng_ptr\fP\fB);\fP
+
+\fI\fB
+
 \fBpng_voidp png_get_mem_ptr(png_structp \fIpng_ptr\fP\fB);\fP
 
 \fI\fB
@@ -598,6 +606,10 @@ libpng \- Portable Network Graphics (PNG) Reference Library 1.0.5a - October 23,
 
 \fI\fB
 
+\fBvoid png_write_info_before_PLTE (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP
+
+\fI\fB
+
 \fBvoid png_write_row (png_structp \fP\fIpng_ptr\fP\fB, png_bytep \fIrow\fP\fB);\fP
 
 \fI\fB
@@ -617,7 +629,7 @@ 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 1.0.5a - October 23, 1999
+ libpng version 1.0.5c - November 27, 1999
  Updated and distributed by Glenn Randers-Pehrson
  <randeg@alum.rpi.edu>
  Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@@ -846,7 +858,7 @@ called after each row has been read, which you can use to control
 a progress meter or the like.  It's demonstrated in pngtest.c.
 You must supply a function
 
-    void read_row_callback(png_ptr, png_uint_32 row, int pass);
+    void read_row_callback(png_ptr ptr, png_uint_32 row, int pass);
     {
       /* put your code here */
     }
@@ -1939,10 +1951,10 @@ Some of the more important parts of the png_info are:
                      Color Consortium
                      (http://www.color.org).
                      It can be one of
-                     PNG_SRGB_INTENT_SATURATION,
-                     PNG_SRGB_INTENT_PERCEPTUAL,
-                     PNG_SRGB_INTENT_ABSOLUTE, or
-                     PNG_SRGB_INTENT_RELATIVE.
+                     PNG_sRGB_INTENT_SATURATION,
+                     PNG_sRGB_INTENT_PERCEPTUAL,
+                     PNG_sRGB_INTENT_ABSOLUTE, or
+                     PNG_sRGB_INTENT_RELATIVE.
 
 
     png_set_sRGB_gAMA_and_cHRM(png_ptr, info_ptr,
@@ -2106,6 +2118,14 @@ image data.  You do this with a call to png_write_info().
 
     png_write_info(png_ptr, info_ptr);
 
+If you need to write a private chunk that you want to appear before
+the PLTE chunk when PLTE is present, you can write the PNG info in
+two steps, and insert code to write your own chunk between them:
+
+    png_write_info_before_PLTE(png_ptr, info_ptr);
+    write_my_private_chunks();
+    png_write_info(png_ptr, info_ptr);
+
 After you've written the file information, you can set up the library
 to handle any special transformations of the image data.  The various
 ways to transform the data will be described in the order that they
@@ -2675,13 +2695,13 @@ the old method.
 
 .SH VII. Y2K Compliance in libpng
 
-October 23, 1999
+November 27, 1999
 
 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 1.0.5a are Y2K compliant.  It is my belief that earlier
+upward through 1.0.5c 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
@@ -2807,7 +2827,7 @@ possible without all of you.
 
 Thanks to Frank J. T. Wojcik for helping with the documentation.
   
-Libpng version 1.0.5a - October 23, 1999:
+Libpng version 1.0.5c - November 27, 1999:
 Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc.
 Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu).
 
@@ -2822,7 +2842,7 @@ Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
 Copyright (c) 1996, 1997 Andreas Dilger
 (libpng versions 0.90, December 1996, through 0.96, May 1997)
 Copyright (c) 1998, 1999 Glenn Randers-Pehrson
-(libpng versions 0.97, January 1998, through 1.0.5a, October 23, 1999)
+(libpng versions 0.97, January 1998, through 1.0.5c, November 27, 1999)
 
 For the purposes of this copyright and license, "Contributing Authors"
 is defined as the following set of individuals: