---
- branch: MAIN
  date: Tue May  3 09:07:35 UTC 2011
  files:
  - new: '1.133'
    old: '1.132'
    path: pkgsrc/graphics/png/Makefile
    pathrev: pkgsrc/graphics/png/Makefile@1.133
    type: modified
  - new: '1.79'
    old: '1.78'
    path: pkgsrc/graphics/png/distinfo
    pathrev: pkgsrc/graphics/png/distinfo@1.79
    type: modified
  id: 20110503T090735Z.102c8d48cec94295a5f52886940bb51c824a32b8
  log: |
    Update to 1.5.3beta04 to fix a regression reported on tech-pkg (see beta03,
    last entry).

    Version 1.5.3beta01 [April 1, 2011]
      Re-initialize the zlib compressor before compressing non-IDAT chunks.
      Added API functions to set parameters for zlib compression of non-IDAT
        chunks.

    Version 1.5.3beta02 [April 3, 2011]
      Updated scripts/symbols.def with new API functions.
      Only compile the new zlib re-initializing code when text or iCCP is
        supported, using PNG_WRITE_COMPRESSED_TEXT_SUPPORTED macro.
      Improved the optimization of the zlib CMF byte (see libpng-1.2.6beta03).
      Optimize the zlib CMF byte in non-IDAT compressed chunks

    Version 1.5.3beta03 [April 16, 2011]
      Fixed gcc -ansi -pedantic compile. A strict ANSI system does not have
        snprintf, and the "__STRICT_ANSI__" detects that condition more reliably
        than __STDC__ (John Bowler).
      Removed the PNG_PTR_NORETURN attribute because it too dangerous. It tells
        the compiler that a user supplied callback (the error handler) does not
        return, yet there is no guarantee in practice that the application code
        will correctly implement the error handler because the compiler only
        issues a warning if there is a mistake (John Bowler).
      Removed the no-longer-used PNG_DEPSTRUCT macro.
      Updated the zlib version to 1.2.5 in the VStudio project.
      Fixed 64-bit builds where png_uint_32 is smaller than png_size_t in
        pngwutil.c (John Bowler).
      Fixed bug with stripping the filler or alpha channel when writing, that
        was introduced in libpng-1.5.2beta01 (bug report by Andrew Church).

    Version 1.5.3beta04 [April 27, 2011]
      Updated pngtest.png with the new zlib CMF optimization.
      Cleaned up conditional compilation code and of background/gamma handling
        Internal changes only except a new option to avoid compiling the
        png_build_grayscale_palette API (which is not used at all internally.)
        The main change is to move the transform tests (READ_TRANSFORMS,
        WRITE_TRANSFORMS) up one level to the caller of the APIs.  This avoids
        calls to spurious functions if all transforms are disabled and slightly
        simplifies those functions.  Pngvalid modified to handle this.
        A minor change is to stop the strip_16 and expand_16 interfaces from
        disabling each other; this allows the future alpha premultiplication
        code to use 16-bit intermediate values while still producing 8-bit output.
        png_do_background and png_do_gamma have been simplified to take a single
        pointer to the png_struct rather than pointers to every item required
        from the png_struct. This makes no practical difference to the internal
        code.
      A serious bug in the pngvalid internal routine 'standard_display_init' has
        been fixed - this failed to initialize the red channel and accidentally
        initialized the alpha channel twice.
      Changed png_struct jmp_buf member name from png_jmpbuf to tmp_jmpbuf to
        avoid a clash with the png_jmpbuf macro on some platforms.
  module: pkgsrc
  subject: 'CVS commit: pkgsrc/graphics/png'
  unixtime: '1304413655'
  user: wiz