new option: -blend_alpha 0xrrggbb
also: don't force picture.use_argb value for lossless. Instead,
delay the YUVA<->ARGB conversion till WebPEncode() is called.
This make the blending more accurate when source is ARGB
and lossy compression is used (YUVA).
This has an effect on cropping/rescaling. E.g. for PNG, these
are now done in ARGB colorspace instead of YUV when lossy compression
is used.
Change-Id: I18571f1b1179881737a8dbd23ad0aa8cddae3c6b
(cherry picked from commit e7d9548c9b)
versions < 4.0.0 used uint32 interchangeably, but with 4.0.0 toff_t
became 64-bit and TIFFTAG_EXIFIFD began returning it rather than
TIFF_LONG/uint32.
Change-Id: I42492bd24613a884c7496e7bfc0c5d892758bce9
the expression using dircount will be promoted to int when tdir_t is an
unsigned short.
quiets:
warning: format specifies type 'unsigned short' but the argument has
type 'int' [-Wformat]
Change-Id: If2e8c27454826556178b0a972aaed272d5fbfa07
tiffdec does not support and warns about multi-directory images.
previously, the code would read all the directories and thus attempt to
use the last rather than the first as the message suggests.
Change-Id: I3a10c778e6e924a3df75b41c26a9c03afb761044
