Half an hour ago, Haiku rendered a movie using the MMX/SSE code for the first time, playing The Life of Brian in VLC:
http://www.elenthara.de/Haiku/Haiku_VLC_SSE.jpgThe colors are /supposed/ to be that way, I set the red channel to full in my code to make sure app_server uses the proper code path.
This is far from release-ready, I just hacked the code in for a first test. There are still many problems with overlapping windows, mouse movement leaving artifacts, etc.
CPU usage drops significantly, even though there is still quite a high load (Haiku uses 2 VCPUs on my Q9550, which runs at 3.33 GHz at the moment).
Stephan, are there any other performance-critical functions used for movie playback in app_server? Color conversion. data copying, etc. If so, I could take a look at the next optimization targets to tackle after integration of this is done.
Christian
