PNG: The Definitive Guide: Errata

To err is human... The following is an errata list for PNG: The Definitive Guide (which currently exists in only one edition, published in June 1999).

• page 37, BeOS paragraph: "R4.1" should be "R4.5" (two instances), and "NetPositive 3.0" should be "NetPositive 2.1"
• page 85, xart paragraph: the URL has changed; the following two are the nearest replacements:
  • http://linux01.gwdg.de/~rhohen/linux.html
  • http://metalab.unc.edu/pub/Linux/apps/graphics/draw/xart19980605.tgz
• page 85, XPaint paragraph: the URL has changed to:
  • http://www.image.dk/~torsten/xpaint/
• page 89, first paragraph after the output listing: the second clause of the second-to-last sentence should read, "the only loss of information it intentionally allows is the explicit removal or replacement of chunks at the user's direction, though a limitation in current versions of the PNG reference library also causes the accidental deletion of unknown, safe-to-copy chunks."
• page 112, third paragraph: "3Dfx Voodoo Rush<enbased card" should instead read "3Dfx Voodoo Rush-based card"
• page 152, fourth paragraph: "the full zlib and deflate specifications are included in Appendixes D and E, respectively" should instead read "the full zlib and deflate specifications are available from http://www.zlib.org/zlib_docs.html"
• page 157, first paragraph: the parenthetical should read, "(This problem seems to have been fixed in more recent versions, but even current versions include 160 bytes' worth of text and background chunks per image.)"
• page 191, second and fourth lines of Table 11-5: the valid ranges should read, "(positive floating-point)"
• page 192, fourth line of Table 11-7: the subscript "10" should instead be "1" (i.e., "X sub 1," not "X sub 10")
• page 289: insert "Chapter 5" heading and new reference:
  libtiff home page
  Welles, Mike, http://www.libtiff.org/. Sam Leffler's original libtiff repository is still available at ftp://ftp.sgi.com/graphics/tiff/, but he no longer maintains the library.
• page 289: insert "Chapter 6" heading and new reference:
  VRML97, ISO/IEC 14772-1:1997
  http://www.vrml.org/Specifications/VRML97/
• page 290: at the end of the "Chapter 8" section, append paragraph:
  See also the Chapter 5 entry for the libtiff home page.

In addition, there are quite a number of individuals mentioned in the book (particularly in Chapter 7) who do not appear in the index. This was not intentional; the index was the very last thing to be prepared, and in the final few days before the book went to the printer, there was only so much time to make changes and request additions. Greg has filled it out somewhat since then, but listing all of the indexing changes on this page would be too tedious. The changes should appear in a future printing. Apologies to anyone who got overlooked.

Here are the other web pages related to PNG: The Definitive Guide:

• Main page
• Detailed table of contents
• Source code
• Errata list
• Random notes and a timeline

Copyright © 1999-2002 Greg Roelofs.