Thank-you for your reply, actually I do save face->glyph->advance.x, and when it comes time to render this is what I am using. Unfortunately the spacing does not look right still.
> Date: Mon, 19 Sep 2011 09:20:46 -0400 > From: [email protected] > To: [email protected] > CC: [email protected]; [email protected] > Subject: Re: [ft-devel] character spacing > > On 09/19/11 01:21, Louis Desjardins wrote: > > Also - as I have already invested much time in Freetype I no longer have > > time > > to integrate a different library such as Pango - is there somewhere I can > > obtain freely distributable TTF files that contains kerning information that > > can be handled by Freetype? > > I'm guessing that you don't want kerning. You want the glyph advance widths. > I'm just guessing that you are stacking bitmaps next to eachother, using the > bitmap width as the "advance" vector. That's wrong. When saving the bitmaps, > also save face->glyph->advance.x. > > behdad > > > > Thank-you! > > > > ------------------------------------------------------------------------------ > > From: [email protected] > > To: [email protected] > > CC: [email protected] > > Subject: RE: [ft-devel] character spacing > > Date: Sun, 18 Sep 2011 22:15:58 -0700 > > > > Thanks for your reply - > > > >> Note, however, that today many fonts contain kerning in the GPOS table > >> which is not handled by FreeType. Instead, you have to use a > >> higher-level library like Pango or ICU. > > > > FT_HAS_KERNING will return true for these types of fonts? When I call, > > FT_Get_Kerning, the akerning value always gets set to (0,0), which from the > > sample code on freetype.org, looks like is an error. Could this indicate > > that > > the kerning information is in the 'GPOS' table? How can I know for sure, or > > is > > there a way to debug this? > > > > Thank-you again! > > > > > >> Date: Mon, 19 Sep 2011 07:10:24 +0200 > >> To: [email protected] > >> CC: [email protected] > >> Subject: Re: [ft-devel] character spacing > >> From: [email protected] > >> > >> > >> > In order to draw my text, I currently make calls to: > >> > > >> > FT_Get_Char_Index > >> > FT_Load_Glyph > >> > FT_Render_Glyph > >> > > >> > and then I store the bitmap of each ascii character to memory, so > >> > that once I actually render the character, I can simply call on the > >> > stored bitmap. > >> > > >> > The problem is that the character spacing is not correct. It looks > >> > like I need to use FT_Get_Kerning to correct this, however from the > >> > examples I've seen, it looks like I need to call this before > >> > FT_Load_Glyph, i.e. at the time when I am storing each of my > >> > characters. > >> > > >> > However, I have no idea what strings will be rendered, until > >> > runtime, so I don't know the 'left_glyph' and 'right_glyph' > >> > parameters in FT_Get_Kerning beforehand. Is there a way to make use > >> > of FT_Get_Kerning while drawing my bitmap (after I've already loaded > >> > the glyph and retrieved its bitmap), in order to achieve proper > >> > character spacing at runtime? > >> > >> Have a look at the ftstring demo program to see how simple kerning > >> works. You can call `FT_Get_Kerning' whenever you want; it is > >> completely unrelated to `FT_Render_Glyph'. > >> > >> Note, however, that today many fonts contain kerning in the GPOS table > >> which is not handled by FreeType. Instead, you have to use a > >> higher-level library like Pango or ICU. > >> > >> > >> Werner > > > > > > > > _______________________________________________ > > Freetype-devel mailing list > > [email protected] > > https://lists.nongnu.org/mailman/listinfo/freetype-devel
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