[vdr] Re: Idea - drawing speed-up

[Patrick Gleichmann <patrick@feedface.com>]

On 6. Dec 2004, at 21:53 Uhr, Sascha Volkenandt wrote:

> Am Montag, 6. Dezember 2004 20:28 schrieb Patrick Gleichmann:
> > Hi,
> > I wonder if adding a
> >
> >    #define IS_VISIBLE(COL) (COL & 0xFF000000 > 0)
> >
> > check would speed up drawing operations (osd.c).
> Dunno, since sometimes it maybe necessary and wanted to draw a 
> transparent
> pixel to delete a visible one...
Hi,
sounds weird. You use a transparent(!) pixel to delete a visible one? A 
transparent one shouldn't be drawn ;-)
SetSize(..) (called from most constructors) sets all pixels to 0x00..

regards
patrick

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Patrick Gleichmann (mailto:patrick@feedface.com)

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