Re: [ft] Questions using FT_RENDER_MODE_MONO

[Wenlin Institute]

On Apr 15, 2008, at 1:08 PM, Graham Hemingway wrote:

> ...
>                         byte = ((byte >> bitOffset) & 1) * 255;


I believe that's backwards; the pixels are arranged from left to  
right starting with the highest order bit. Something like this should  
work better:

        byte = (byte & (0x80 >> bitOffset)) ? 255 : 0;

I haven't tried running your code but I think this will at least get  
it closer to working. (You could also optimize the speed by storing  
the mask and offsets in variables rather than repeating the  
multiplications, etc., for each pixel.)

Best wishes,

Tom

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