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3 commits

Author SHA1 Message Date
Vincent Penquerc'h
c437541791 dvdspu: do not clear out high bits from display area 
http://dvd.sourceforge.net/spu_notes does not mention that high bits
are to be masked, and not clearing them makes a sample work, where
clearing them yielded left > right.
History does not shed any light, as tracing this code's origin shows
the same bitmasks being there in 2007 when it was imported.

https://bugzilla.gnome.org/show_bug.cgi?id=620119
 2011-08-23 10:15:27 +02:00
Jan Schmidt
b68a05dbfa gstspu: Implement PGS rendering and alpha blending 
Refactor the DVD subpicture compositing, switching it to 8-bit alpha
calculations. Reuse some of the resulting code to implement PGS
subpicture blending.

Implement parsing and collecting of composition objects properly, but
assuming a single active window and colour palette for now. I need more
PGS samples.
 2009-05-26 15:58:09 +01:00
Jan Schmidt
7e20e3be45 dvdspu: Move a bunch of vobsub specific logic to a separate file. 
Start separating out the vobsub logic in preparation for creating
separate renderer objects for each subpicture format.
 2009-05-26 15:31:56 +01:00