| PNG: The Definitive Guide: Source Code |
| |
| Chapters 13, 14 and 15 of PNG: The Definitive Guide discuss three |
| cross-platform demo programs that show how to use the libpng reference |
| library: rpng, rpng2 and wpng. rpng and rpng2 are viewers; the first is a |
| very simple example that that shows how a standard file-viewer might use |
| libpng, while the second is designed to process streaming data and shows how |
| a web browser might be written. wpng is a simple command-line program that |
| reads binary PPM files (the ``raw'' RGB subset of NetPBM) and converts them |
| to PNG. |
| |
| The source code for all three demo programs currently compiles only under |
| Unix and 32-bit Windows. It has been tested with gcc 2.7.2.3 under Linux and |
| Solaris and with Microsoft Visual C++ 5.0 under Windows 95. Brief |
| instructions for compiling the programs are included at the top of the |
| makefiles; makefile.unx is the Unix version, and makefile.w32 is (you |
| guessed it!) the version for 32-bit Windows. libpng and zlib are required. |
| |
| ---------------------------------------------------------------------------- |
| |
| License |
| |
| The source code to the demo programs may be used and distributed freely |
| (even if you didn't buy the book--but feel free to do so at any time), |
| subject to the terms of the following BSD-like license: |
| |
| Copyright (c) 1998-1999 Greg Roelofs. All rights reserved. |
| |
| This software is provided "as is," without warranty of any kind, |
| express or implied. In no event shall the author or contributors |
| be held liable for any damages arising in any way from the use of |
| this software. |
| |
| Permission is granted to anyone to use this software for any |
| purpose, including commercial applications, and to alter it and |
| redistribute it freely, subject to the following restrictions: |
| |
| 1. Redistributions of source code must retain the above |
| copyright notice, disclaimer, and this list of conditions. |
| 2. Redistributions in binary form must reproduce the above |
| copyright notice, disclaimer, and this list of conditions in |
| the documentation and/or other materials provided with the |
| distribution. |
| 3. All advertising materials mentioning features or use of this |
| software must display the following acknowledgment: |
| |
| This product includes software developed by Greg Roelofs |
| and contributors for the book, "PNG: The Definitive |
| Guide," published by O'Reilly and Associates. |
| |
| ---------------------------------------------------------- |
| http://www.cdrom.com/pub/png/book/sources.html |
