[Cin] Shape Wipe Transitions and GIT checkin

[Phyllis Smith]

(Started new email so title is more relevant).  Included in today's GIT
checkin is the following.

IgorB supplied another 25 Shape Wipe Transitions -- actually 50 with a 1080
and a 540 version.  For further information refer to earlier email at:
     https://www.mail-archive.com/cin@lists.cinelerra-gg.org/msg00619.html
GG did a lot of rework on the Shape Wipe Transitions code.  He added the 25
1080 versions; fixed a couple of bugs; added a Feather slider (based on
exponential values); and built in parallel processing instead of single
threading.  So in response to:

> Yes it is resampled, but by my tests on my poor PC, 540 works faster than
> 1080 for a 29.97 fps project, the MIN fps achieved with "Tr-1080_Butterfly"
> is 22fps, while with "Tr-540_Butterfly" is 28fps. So, in some projects I
> can use the 540 instead of 1080 to save cpu.
>
 the fps with the 1080 should now be almost the same as the 540 now with
the rework that gg did.  I tested it and it seemed to use the same amount
of cpu  at 1080 as at 540 (monitor with the "top" command and checked
Preferences frames per second).  He says that once past the initial check
at the very beginning, it should run at the same speed..

 A static tar build is at the following in case anyone wants to test for
Ubuntu16:
    https://
cinelerra-gg.org/download/testing/cinelerra-5.1-ub16-x86_64-static.txz

Thanks IgorB!  gg/Phyllis
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