Libpng 1.0.3 - January 14, 1999 This is a public release of libpng, intended for use in production codes. Changes since the previous public release (1.0.2): libpng-1.0.3: Replaced and extended code that was removed from png_set_filler() in 1.0.1a. Fixed a bug in png_do_filler() that made it fail to write filler bytes in the left-most pixel of each row (Kevin Bracey). Changed "static pngcharp tIME_string" to "static char tIME_string[30]" in pngtest.c (Duncan Simpson). Fixed a bug in pngtest.c that caused pngtest to try to write a tIME chunk even when no tIME chunk was present in the source file. Fixed a problem in pngrutil.c: gray_to_rgb didn't always work with 16-bit. Fixed a problem in png_read_push_finish_row(), which would not skip some passes that it should skip, for images that are less than 3 pixels high. Interchanged the order of calls to png_do_swap() and png_do_shift() in pngwtran.c (John Cromer). Added #ifdef PNG_DEBUG/#endif surrounding use of PNG_DEBUG in png.h . Changed "bad adaptive filter type" from error to warning in pngrutil.c . Fixed a documentation error about default filtering with 8-bit indexed-color. Separated the PNG_NO_STDIO macro into PNG_NO_STDIO and PNG_NO_CONSOLE_IO (L. Peter Deutsch). Added png_set_rgb_to_gray() and png_get_rgb_to_gray_status() functions. Added png_get_copyright() and png_get_header_version() functions. Revised comments on png_set_progressive_read_fn() in libpng.txt and example.c Added information about debugging in libpng.txt and libpng.3 . Changed "ln -sf" to "ln -s -f" in makefile.s2x, makefile.lnx, and makefile.sco. Removed lines after Dynamic Dependencies" in makefile.aco . Revised makefile.dec to make a shared library (Jeremie Petit). Removed trailing blanks from all files. Removed misplaced #endif and #ifdef PNG_NO_EXTERN near the end of png.h Added "if" tests to silence complaints about unused png_ptr in png.h and png.c Changed "check_if_png" function in example.c to return true (nonzero) if PNG. Changed libpng.txt to demonstrate png_sig_cmp() instead of png_check_sig() which is obsolete. Added makefile.hux, for Hewlett Packard HPUX 10.20 and 11.00 (Jim Rice) Added a statement of Y2K compliance in png.h, libpng.1, and Y2KINFO. Send comments/corrections/commendations to png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu Glenn R-P Send comments/corrections/commendations to png-implement@dworkin.wustl.edu or to randeg@alumni.rpi.edu Glenn Randers-Pehrson libpng maintainer PNG Development Group