On 05/07/2010 01:13, Florent Kaisser wrote: > Hello, > > Problem : The "dim text" feature slow the tv listening scroll > > Why ? matrix calculation with two imbricate For loop in > __draw_transparent_text__ (osd.py) > > Solution : use NumPy to acdelerate the matrix calculation > > Proposed patch for osd.py : > > 43a44 > >> import numpy >> > 1148,1149d1148 > < opaque_mod = float(1) > < opaque_stp = opaque_mod/float(pixels) > 1155,1159c1154,1158 > < for x in range(max(w-pixels, 0), w): > < for y in range(0, h): > < if alpha[x, y] != 0: > < alpha[x, y] = int(alpha[x, y] * opaque_mod) > < opaque_mod -= opaque_stp > --- > >> alpha *= numpy.row_stack( >> [numpy.ones( (max(w-pixels, 0),h) )] >> + [numpy.linspace(mod,mod,num=h) >> for mod in numpy.linspace(1,0,num=pixels) ] ) >> >> > Best regards, > > Florent Kaisser. > Hi Florent,
Many thanks for the patch. I'm looking forward to testing it out. In the mean time can you submit it to the bug tracker? http://sourceforge.net/tracker/?atid=446895&group_id=46652 John ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Freevo-devel mailing list Freevo-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freevo-devel
