[MPlayer-dev-eng] Re: OSD rendering

[Michael Niedermayer]

Hi

On Tuesday 09 April 2002 12:42, Tobias Diedrich wrote:
> Arpi wrote:
> > comments?
>
> The color format of the OSD bitmaps should be either YUVA (as used in
> DVD subtitles) or it should support multiple source formats (YUVA, RGBA,
> YA).
imho we should reduce the number of formats if possible, the idea i had to do 
the new osd rendering, was to choose 1 format and convert this before 
rendering to a format which is closer to the surface format that way function 
which manipulate the osd (change brightness, size, saturation, hue of chars) 
would only need to support the internal format & we would then convert it to 
a rendering friendly format before drawing, we could allso have a cache where 
we store converted chars so that for a (size, hue, saturation, char, ...) 
we'll simply reuse them instead of wastung cpu cycles, we would allso need to 
drop rarely used chars obviously with a LRU algo or something, sadly i dont 
have the time to implemnt that :(

Michael