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Re: [ft-devel] Problems with gfdriver in ftview.
From: |
Werner LEMBERG |
Subject: |
Re: [ft-devel] Problems with gfdriver in ftview. |
Date: |
Tue, 10 Jul 2018 22:36:37 +0200 (CEST) |
>> Well, simply follow the documentation, i.e., set `pitch' to
>>
>> ((((w + 7) / 8) + 1) / 2) * 2
>>
>> (but with some better C code :-) and use this value for creating
>> the bitmap.
>
> Ok, I did change the value of pitch (6) and tried to draw `a', it is
> giving a wrong glyph, then I changed the value to previous value(5),
> it drew a correct one. I think that this might be the problem, that
> gf uses odd pitch value to draw glyph and ftview requires a even
> one?
With `set the pitch' I mean of course that you also adjust the code to
insert a trailing null byte each line *in the output buffer* if the
number of input bytes per line is uneven...
Werner