[Devel] Re: [Freetype] mono rendering

[Werner LEMBERG]

> I am trying to render glyph in mono and grayscale modes.  Attached
> samples show that quality of grayscaled image much better than mono
> one.

Where are the problems?  You won't get smooth edges in mono mode...

> Flags are: FT_LOAD_FORCE_AUTOHINT | FT_LOAD_RENDER for grayscale
> and FT_LOAD_FORCE_AUTOHINT | FT_LOAD_RENDER |  FT_LOAD_MONOCHROME
> for mono.
> 
> In freetype-1.x,using these flags got me very good image
> TTLOAD_SCALE_GLYPH | TTLOAD_HINT_GLYPH.
> 
> Does somebody know what is the problem?

FT_LOAD_FORCE_AUTOHINT uses the autohinter, TT_LOAD_HINT_GLYPH uses
the TrueType bytecode interpreter for hinting -- the latter of course
produces better results.

Have you tried FT_LOAD_DEFAULT instead?  If FreeType 2 is compiled
with the TT hinter, you should get the same results as with FT 1.


   Werner