Libpng 1.2.9beta1 - February 21, 2006

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.

Changes since the last public release (1.2.8):

version 1.2.9beta1 [February 21, 2006]
  Initialized some structure members in pngwutil.c to avoid gcc-4.0.0 complaints
  Revised man page and libpng.txt to make it clear that one should not call
    png_read_end or png_write_end after png_read_png or png_write_png.
  Updated references to png-mng-implement mailing list.
  Fixed an incorrect typecast in pngrutil.c
  Added PNG_READ_SUPPORTED conditionals for making a write-only library.
  Added PNG_NO_WRITE_INTERLACING_SUPPORTED conditional.
  Optimized alpha-inversion loops in pngwtran.c
  Moved test for nonzero gamma outside of png_build_gamma_table() in pngrtran.c
  Make sure num_trans is <= 256 before copying data in png_set_tRNS().
  Make sure num_palette is <= 256 before copying data in png_set_PLTE().
  Interchanged order of write_swap_alpha and write_invert_alpha transforms.
  Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
  Optimized zlib window flag (CINFO) in contrib/pngsuite/*.png (Cosmin).
  Updated scripts/makefile.bc32 for Borland C++ 5.6 (Cosmin).
  Fixed inconsistency in definition of png_default_read_data()
  Exported png_get_uint_32, png_save_uint_32, png_get_uint_16, png_save_uint_16,
    png_get_int_32, png_save_int_32, png_get_uint_31 (Cosmin).
  Added parentheses in the definition of PNG_LIBPNG_BUILD_TYPE (Cosmin).
  Updated scripts/pngos2.def, scripts/pngw32.def (Cosmin).
  Added type cast (png_byte) in png_write_sCAL() (Cosmin).
  Fixed scripts/makefile.cygwin (Cosmin).

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