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diff --git a/src/3rdparty/libpng/png.5 b/src/3rdparty/libpng/png.5 new file mode 100644 index 000000000..11ab24499 --- /dev/null +++ b/src/3rdparty/libpng/png.5 @@ -0,0 +1,60 @@ +.TH PNG 5 "October 3, 2002" +.SH NAME +png \- Portable Network Graphics (PNG) format +.SH DESCRIPTION +PNG (Portable Network Graphics) is an extensible file format for the +lossless, portable, well-compressed storage of raster images. PNG provides +a patent-free replacement for GIF and can also replace many +common uses of TIFF. Indexed-color, grayscale, and truecolor images are +supported, plus an optional alpha channel. Sample depths range from +1 to 16 bits. +.br + +PNG is designed to work well in online viewing applications, such as the +World Wide Web, so it is fully streamable with a progressive display +option. PNG is robust, providing both full file integrity checking and +fast, simple detection of common transmission errors. Also, PNG can store +gamma and chromaticity data for improved color matching on heterogeneous +platforms. + +.SH "SEE ALSO" +.IR libpng(3), zlib(3), deflate(5), and zlib(5) +.LP +PNG 1.2 specification, July 1999: +.IP +.br +http://www.libpng.org/pub/png +.br +or ftp://ftp.uu.net/graphics/png/documents +.LP +PNG 1.0 specification, October 1996: +.IP +.br +RFC 2083 +.IP +.br +ftp://ds.internic.net/rfc/rfc2083.txt +.br +or (as a W3C Recommendation) at +.br +http://www.w3.org/TR/REC-png.html +.SH AUTHORS +This man page: Glenn Randers-Pehrson +.LP +Portable Network Graphics (PNG) Specification Version 1.2 (July 8, 1999): +Glenn Randers-Pehrson and others (png-list@ccrc.wustl.edu). +.LP +Portable Network Graphics (PNG) Specification Version 1.0 (October 1, 1996): +Thomas Boutell and others (png-list@ccrc.wustl.edu). +.LP + + +.SH COPYRIGHT NOTICE +The PNG-1.2 specification is copyright (c) 1999 Glenn Randers-Pehrson. +See the specification for conditions of use and distribution. +.LP +The PNG-1.0 specification is copyright (c) 1996 Massachusetts Institute of +Technology. See the specification for conditions of use and distribution. +.LP +.\" end of man page + |