Glenn Randers-Pehrson 85fbf27733 [alpha] Added "double gamma" to parameters for png_set_premultiply_alpha(). ...

Added "float gamma_premultiply" member to the png_struct.
  Moved PNG_DIVIDE_BY_255, PNG_8_BIT_PREMULTIPLY(), etc., from
    png.h to pngpriv.h
  Updated documentation about png_set_premultiply_alpha().

2009-11-28 15:42:28 -06:00

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