Libpng 1.2.21rc1 - September 26, 2007 This is not intended to be a public release. It will be replaced within a few weeks by a public version or by another test version. Files available for download: Source files with LF line endings (for Unix/Linux) and with a "configure" script libpng-1.2.21rc1.tar.gz libpng-1.2.21rc1.tar.bz2 Source files with LF line endings (for Unix/Linux) without the "configure" script libpng-1.2.21rc1-no-config.tar.gz libpng-1.2.21rc1-no-config.tar.bz2 Source files with CRLF line endings (for Windows), without the "configure" script lp1221r01.zip lp1221r01.tar.bz2 Project files libpng-1.2.21rc1-project-netware.zip libpng-1.2.21rc1-project-wince.zip Other information: libpng-1.2.21rc1-README.txt libpng-1.2.21rc1-KNOWNBUGS.txt libpng-1.2.21rc1-LICENSE.txt libpng-1.2.21rc1-Y2K-compliance.txt Changes since the last public release (1.2.19): version 1.2.20beta01 [August 19, 2007] Fixed problem with compiling pnggccrd.c on Intel-Apple platforms. Added PNG_NO_ERROR_TEXT feature, with demo in contrib/pngminim Removed define PNG_WARN_UNINITIALIZED_ROW 1 /* 0: warning; 1: error */ because it caused some trouble. version 1.2.20beta02 [August 20, 2007] Avoid compiling pnggccrd.c on Intel-Apple platforms. version 1.2.20beta03 [August 20, 2007] Added "/D PNG_NO_MMX_CODE" to the non-mmx builds of projects/visualc6 and visualc71. version 1.2.20beta04 [August 21, 2007] Revised pngvcrd.c for improved efficiency (Steve Snyder). version 1.2.20rc1 [August 23, 2007] Revised pngconf.h to set PNG_NO_MMX_CODE for gcc-3.x compilers. version 1.2.20rc2 [August 27, 2007] Revised scripts/CMakeLists.txt Revised #ifdefs to ensure one and only one of pnggccrd.c, pngvcrd.c, or part of pngrutil.c is selected. version 1.2.20rc3 [September 26, 2007] Remove a little more code in pngwutil.c when PNG_NO_WRITE_FILTER is selected. Added /D _CRT_SECURE_NO_WARNINGS to visual6c and visualc71 projects. Compile png_mmx_support() in png.c even when PNG_NO_MMX_CODE is defined. Restored a "superfluous" #ifdef that was removed from 1.2.20rc2 pnggccrd.c, breaking the png_mmx_support() function. version 1.2.20rc4 [September 1, 2007] Removed Intel contributions (MMX, Optimized C). version 1.2.20rc5 [September 2, 2007] Restored configure and Makefile.in to rc3 and put a snippet of code in pnggccrd.c, to ensure configure makes the same PNG_NO_MMX_CODE selection version 1.2.20rc6 [September 2, 2007] Fixed bugs in scripts/CMakeLists.txt Removed pngvcrd.c references from msvc projects. version 1.0.28 and 1.2.20 [September 8, 2007] Removed "(NO READ SUPPORT)" from png_get_header_version() string. version 1.2.21beta1 [September 14, 2007] Fixed various mistakes reported by George Cook and Jeff Phillips: logical vs bitwise NOT in pngrtran.c, bug introduced in 1.2.19rc2 16-bit cheap transparency expansion, bug introduced in 1.2.19beta2 errors with sizeof(unknown_chunk.name), bugs introduced in 1.2.19beta11 <= compare with unsigned var in pngset.c, should be ==. version 1.2.21beta2 [September 18, 2007] Removed some extraneous typecasts. version 1.2.21rc1 [September 26, 2007] Fixed potential out-of-bounds read in png_handle_pCAL(). Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe) or to glennrp at users.sourceforge.net Glenn R-P