Imported from libpng-1.0.9beta8.tar
diff --git a/libpng.3 b/libpng.3 index d79a166..f2bbc79 100644 --- a/libpng.3 +++ b/libpng.3
@@ -1,6 +1,6 @@ -.TH LIBPNG 3 "December 28, 2000" +.TH LIBPNG 3 "January 12, 2001" .SH NAME -libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9beta7 +libpng \- Portable Network Graphics (PNG) Reference Library 1.0.9beta8 .SH SYNOPSIS \fI\fB @@ -100,6 +100,10 @@ \fI\fB +\fBpng_uint_32 png_get_asm_flags (png_structp \fIpng_ptr\fP\fB);\fP + +\fI\fB + \fBpng_byte png_get_bit_depth (png_structp \fP\fIpng_ptr\fP\fB, png_infop \fIinfo_ptr\fP\fB);\fP \fI\fB @@ -334,6 +338,10 @@ \fI\fB +\fBint png_mmx_support \fI(void\fP\fB);\fP + +\fI\fB + \fBvoid png_permit_empty_plte (png_structp \fP\fIpng_ptr\fP\fB, int \fIempty_plte_permitted\fP\fB);\fP \fI\fB @@ -384,6 +392,10 @@ \fI\fB +\fBpng_set_asm_flags (png_structp \fP\fIpng_ptr\fP\fB, png_uint_32 \fIasm_flags\fP\fB);\fP + +\fI\fB + \fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP \fI\fB @@ -747,7 +759,7 @@ .SH LIBPNG.TXT libpng.txt - A description on how to use and modify libpng - libpng version 1.0.9beta7 - December 28, 2000 + libpng version 1.0.9beta8 - January 12, 2001 Updated and distributed by Glenn Randers-Pehrson <randeg@alum.rpi.edu> Copyright (c) 1998, 1999, 2000 Glenn Randers-Pehrson @@ -2989,13 +3001,22 @@ .SH V. Modifying/Customizing libpng: -There are two issues here. The first is changing how libpng does +There are three issues here. The first is changing how libpng does standard things like memory allocation, input/output, and error handling. The second deals with more complicated things like adding new chunks, adding new transformations, and generally changing how libpng works. +Both of those are compile-time issues; that is, they are generally +determined at the time the code is written, and there is rarely a need +to provide the user with a means of changing them. The third is a +run-time issue: choosing between and/or tuning one or more alternate +versions of computationally intensive routines; specifically, optimized +assembly-language (and therefore compiler- and platform-dependent) +versions. + +Memory allocation, input/output, and error handling All of the memory allocation, input/output, and error handling in libpng -goes through callbacks that are user settable. The default routines are +goes through callbacks that are user-settable. The default routines are in pngmem.c, pngrio.c, pngwio.c, and pngerror.c, respectively. To change these functions, call the appropriate png_set_*_fn() function. @@ -3343,6 +3364,7 @@ having level = 0 will be printed. There aren't any such statements in this version of libpng, but if you insert some they will be printed. + .SH VI. MNG support The MNG specification (available at http://www.libpng.org/pub/mng) allows @@ -3419,13 +3441,13 @@ .SH VIII. Y2K Compliance in libpng -December 28, 2000 +January 12, 2001 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 1.0.9beta7 are Y2K compliant. It is my belief that earlier +upward through 1.0.9beta8 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 @@ -3566,7 +3588,7 @@ Thanks to Frank J. T. Wojcik for helping with the documentation. -Libpng version 1.0.9beta7 - December 28, 2000: +Libpng version 1.0.9beta8 - January 12, 2001: Initially created in 1995 by Guy Eric Schalnat, then of Group 42, Inc. Currently maintained by Glenn Randers-Pehrson (randeg@alum.rpi.edu). @@ -3583,7 +3605,7 @@ If you modify libpng you may insert additional notices immediately following this sentence. -libpng versions 1.0.7, July 1, 2000, through 1.0.9beta7, December 28, 2000, are +libpng versions 1.0.7, July 1, 2000, through 1.0.9beta8, January 12, 2001, are Copyright (c) 2000 Glenn Randers-Pehrson, and are distributed according to the same disclaimer and license as libpng-1.0.6 with the following individuals added to the list of Contributing Authors @@ -3674,7 +3696,7 @@ Glenn Randers-Pehrson randeg@alum.rpi.edu -December 28, 2000 +January 12, 2001 .\" end of man page