Glenn Randers-Pehrson
d8d18fbb02
[libpng16] Imported from libpng-1.6.18beta03.tar
2015-05-06 16:39:31 -05:00
John Bowler
74428df2fd
[libpng16] Improved DIV65535 algorithm in simpleover.c. By experiment,
...
(x + (x>>16) + 32769) works as well as the previous form and avoids one shift.
2015-05-06 11:41:17 -05:00
Glenn Randers-Pehrson
d6b1375bf5
[libpng16] Trivial editing of comments in contrib/examples/simpleover.c
2015-05-04 20:25:31 -05:00
John Bowler
0f12df19a1
[libpng16] Added PNG generation tool, fixed unitialized pointer in
...
simpleover. Also added a comment to png.h pointing out that the pointer must
be set to NULL! (simpleover crashes with any slightly complex command lines
without this fix.)
2015-05-04 19:58:41 -05:00
John Bowler
cde3078963
[libpng16] Added contrib/examples/simpleover.c, to demonstrate how to handle
...
alpha compositing of multiple images, using the "simplified API"
2015-05-02 19:53:40 -05:00
