Re: [ft] anti-aliasing question

[Dave Calkins]

On 2/7/2010 9:00 AM, Werner LEMBERG wrote:
>    
> > Is there an LCD mode which does not grow the image size?
> >      
> No.  You need three colour channels for LCD rendering.
>
>    

What is the format of the bitmap memory when FT_PIXEL_MODE_LCD is in 
place?  The docs say 8-bit, but it being 3x as wide suggests maybe 1 
byte for each color component?

> > I see FT_RENDER_MODE_LCD and LCD_V which both indicate that they
> > produce larger-than-normal bitmaps.  I tried FT_RENDER_MODE_LCD and
> > of course the text glyphs were all 3 times as wide (as the docs
> > indicate).  Am I supposed to then shrink them back down?
> >      
> No, you are supposed to apply a colour filter.
>
>
>    

What would the pseudo code be for that?  I tried calling 
FT_Library_SetLcdFilter, but the resultant image is still 3x as wide.  
Is the idea that the color filter samples bytes from the bitmap and 
results in a new bitmap which is the original width?

Is there some other call I need to make to enable the color filter?