diff options
Diffstat (limited to 'libpng.3')
| -rw-r--r-- | libpng.3 | 27 |
1 files changed, 16 insertions, 11 deletions
@@ -1,6 +1,6 @@ -.TH LIBPNG 3 "November 26, 2015" +.TH LIBPNG 3 "December 3, 2015" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.4.18rc01 +libpng \- Portable Network Graphics (PNG) Reference Library 1.4.18 .SH SYNOPSIS \fB #include <png.h>\fP @@ -442,7 +442,7 @@ Following is a copy of the libpng-manual.txt file that accompanies libpng. .SH LIBPNG.TXT libpng.txt - A description on how to use and modify libpng - libpng version 1.4.18rc01 - November 26, 2015 + libpng version 1.4.18 - December 3, 2015 Updated and distributed by Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -453,7 +453,7 @@ libpng.txt - A description on how to use and modify libpng Based on: - libpng versions 0.97, January 1998, through 1.4.18rc01 - November 26, 2015 + libpng versions 0.97, January 1998, through 1.4.18 - December 3, 2015 Updated and distributed by Glenn Randers-Pehrson Copyright (c) 1998-2014 Glenn Randers-Pehrson @@ -1349,7 +1349,7 @@ things. As of libpng version 1.2.9, png_set_expand_gray_1_2_4_to_8() was added. It expands the sample depth without changing tRNS to alpha. -As of libpng version 1.4.18rc01, not all possible expansions are supported. +As of libpng version 1.4.18, not all possible expansions are supported. In the following table, the 01 means grayscale with depth<8, 31 means indexed with depth<8, other numerals represent the color type, "T" means @@ -2331,8 +2331,7 @@ Some of the more important parts of the png_info are: If you call png_set_IHDR(), the call must appear before any of the other png_set_*() functions, because they might require access to some of -the IHDR settings. The remaining png_set_*() functions can be called -in any order. +the IHDR settings. If you wish, you can reset the compression_type, interlace_type, or filter_method later by calling png_set_IHDR() again; if you do this, the @@ -2344,6 +2343,12 @@ width, height, bit_depth, and color_type must be the same in each call. (array of png_color) num_palette - number of entries in the palette +If you call png_set_PLTE(), the call must appear before either of +png_set_tRNS() or png_set_hIST() appears, because they require access +to the palette length. + +The remaining png_set_*() functions can be called in any order. + png_set_gAMA(png_ptr, info_ptr, gamma); gamma - the gamma the image was created at (PNG_INFO_gAMA) @@ -3735,7 +3740,7 @@ 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 1.4.18rc01 are Y2K compliant. It is my belief that earlier +upward through 1.4.18 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 @@ -3888,7 +3893,7 @@ possible without all of you. Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.4.18rc01 - November 26, 2015: +Libpng version 1.4.18 - December 3, 2015: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (glennrp at users.sourceforge.net). @@ -3913,7 +3918,7 @@ this sentence. This code is released under the libpng license. -libpng versions 1.0.7, July 1, 2000, through 1.4.18rc01, November 26, 2015, are +libpng versions 1.0.7, July 1, 2000, through 1.4.18, December 3, 2015, are Copyright (c) 2000-2002, 2004, 2006-2015 Glenn Randers-Pehrson, are derived from libpng-1.0.6, and are distributed according to the same disclaimer and license as libpng-1.0.6 with the following individuals @@ -4010,7 +4015,7 @@ the additional disclaimers inserted at version 1.0.7. Glenn Randers-Pehrson glennrp at users.sourceforge.net -November 26, 2015 +December 3, 2015 .\" end of man page |