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Subject:
Freetype2 position Y problem
From: Teemu Keskinarkaus ####@####.#### Date: 29 Dec 2006 11:23:13 +0000 Message-Id: <FB4B49604ADFD949A9F32F2D8E6C4D470197DE94@alban.ccs.local> Hi, I recently posted here about problem with TTF fonts. That was solved, but then I had new problem that the fonts were too high. I debugged the problem and found out that in engine/font_freetype2.c in function freetype2_drawtext there is a bug in code that counts value for pos.y. It doesn't count the baseline in pos.y thus the text is baseline amount too high. If I add the baseline value to the pos.y I get the text where I want them to be. Except that now I'm using fixed value for baseline so it works only for one font. With some other font it might be wrong so I need to calculate the baseline for each fonts or save that value in font-struct. I'm using NanoX version 0.91. Is this known bug or am I just using some fonts that are different that NanoX was tested? Same problems occurs on multiple fonts so it's not one font's problem. There are no problems with 'built-in' fonts. Teemu Keskinarkaus CC-Systems | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: [nanogui] Freetype2 position Y problem
From: "Uwe Klatt" ####@####.#### Date: 29 Dec 2006 13:24:30 +0000 Message-Id: <01a501c72b4c$a1cc5420$081710ac@arnstein.miwe.de> Hello, > I debugged the problem and found out that in engine/font_freetype2.c > in function freetype2_drawtext there is a bug in code that counts > value for pos.y. It doesn't count the baseline in pos.y thus the text > is baseline amount too high. If I add the baseline value to the pos.y I use the following code (not in 0.91 but allready in cvs): ====================== font_truetype2.c =============== /* * Offset the starting point if necessary, * FreeType always aligns at baseline */ if (flags & MWTF_BOTTOM) { pos.y = (abs(size->metrics.descender) + 63) & ~63; /* descent */ } else if (flags & MWTF_TOP) { pos.y = (size->metrics.ascender + 63) & ~63; /* -ascent */ } else { pos.y = 0; } Bye Uwe | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
RE: [nanogui] Freetype2 position Y problem
From: Teemu Keskinarkaus ####@####.#### Date: 2 Jan 2007 09:59:14 +0000 Message-Id: <FB4B49604ADFD949A9F32F2D8E6C4D470197DED3@alban.ccs.local> Hi, I got the things working ok. Had to add the baseline handling and after that the fonts appeared on the right places. At the moment this is enough for me. Thanks. Teemu Keskinarkaus CC-Systems -----Original Message----- From: Uwe Klatt ####@####.#### Sent: 29. joulukuuta 2006 15:24 To: Teemu Keskinarkaus; Nano-X Subject: Re: [nanogui] Freetype2 position Y problem Hello, > I debugged the problem and found out that in engine/font_freetype2.c > in function freetype2_drawtext there is a bug in code that counts > value for pos.y. It doesn't count the baseline in pos.y thus the text > is baseline amount too high. If I add the baseline value to the pos.y I use the following code (not in 0.91 but allready in cvs): ====================== font_truetype2.c =============== /* * Offset the starting point if necessary, * FreeType always aligns at baseline */ if (flags & MWTF_BOTTOM) { pos.y = (abs(size->metrics.descender) + 63) & ~63; /* descent */ } else if (flags & MWTF_TOP) { pos.y = (size->metrics.ascender + 63) & ~63; /* -ascent */ } else { pos.y = 0; } Bye Uwe | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: [nanogui] Freetype2 position Y problem
From: "max xiayi" ####@####.#### Date: 26 Oct 2007 14:12:46 +0100 Message-Id: <afda14700710260612j19e778bdnfabe65c93018bdef@mail.gmail.com> Hi Teemu Keskinarkaus, I also found these problem, I need to figure out the basest line for a line of text, I think things should not be like that. Only us two complain this problem, what's the wrong thing we have done? Anybody know? Max 2007/1/2, Teemu Keskinarkaus ####@####.#### > > Hi, > > I got the things working ok. Had to add the baseline handling and after > that > the fonts appeared on the right places. At the moment this is enough for > me. > > > Thanks. > > Teemu Keskinarkaus > CC-Systems > > -----Original Message----- > From: Uwe Klatt ####@####.#### > Sent: 29. joulukuuta 2006 15:24 > To: Teemu Keskinarkaus; Nano-X > Subject: Re: [nanogui] Freetype2 position Y problem > > Hello, > > > I debugged the problem and found out that in engine/font_freetype2.c > > in function freetype2_drawtext there is a bug in code that counts > > value for pos.y. It doesn't count the baseline in pos.y thus the text > > is baseline amount too high. If I add the baseline value to the pos.y > > I use the following code (not in 0.91 but allready in cvs): > ====================== font_truetype2.c =============== > > /* > * Offset the starting point if necessary, > * FreeType always aligns at baseline > */ > if (flags & MWTF_BOTTOM) { > pos.y = (abs(size->metrics.descender) + 63) & ~63; > /* descent */ > } else if (flags & MWTF_TOP) { > pos.y = (size->metrics.ascender + 63) & ~63; > /* -ascent */ > } else { > pos.y = 0; > } > > > Bye > Uwe > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: ####@####.#### > For additional commands, e-mail: ####@####.#### > > | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: [nanogui] Freetype2 position Y problem
From: "Greg Haerr" ####@####.#### Date: 27 Oct 2007 05:04:25 +0100 Message-Id: <003001c8184e$700e4c00$6401a8c0@winXP> I have fixed various issues with freetype 1 and 2, including the y position problem. The fixes are in the nano-X CVS, or the microwindows-src-snapshot.tar.gz on the website. Regards, Greg : I also found these problem, I need to figure out the basest line for a line : of text, I think things should not be like that. Only us two complain this : problem, what's the wrong thing we have done? Anybody know? : : Max : : : 2007/1/2, Teemu Keskinarkaus ####@####.#### : > : > Hi, : > : > I got the things working ok. Had to add the baseline handling and after : > that : > the fonts appeared on the right places. At the moment this is enough for : > me. : > : > : > Thanks. : > : > Teemu Keskinarkaus : > CC-Systems : > : > -----Original Message----- : > From: Uwe Klatt ####@####.#### : > Sent: 29. joulukuuta 2006 15:24 : > To: Teemu Keskinarkaus; Nano-X : > Subject: Re: [nanogui] Freetype2 position Y problem : > : > Hello, : > : > > I debugged the problem and found out that in engine/font_freetype2.c : > > in function freetype2_drawtext there is a bug in code that counts : > > value for pos.y. It doesn't count the baseline in pos.y thus the text : > > is baseline amount too high. If I add the baseline value to the pos.y : > : > I use the following code (not in 0.91 but allready in cvs): : > ====================== font_truetype2.c =============== : > : > /* : > * Offset the starting point if necessary, : > * FreeType always aligns at baseline : > */ : > if (flags & MWTF_BOTTOM) { : > pos.y = (abs(size->metrics.descender) + 63) & ~63; : > /* descent */ : > } else if (flags & MWTF_TOP) { : > pos.y = (size->metrics.ascender + 63) & ~63; : > /* -ascent */ : > } else { : > pos.y = 0; : > } : > : > : > Bye : > Uwe : > : > : > --------------------------------------------------------------------- : > To unsubscribe, e-mail: ####@####.#### : > For additional commands, e-mail: ####@####.#### : > : > : | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Subject:
Re: [nanogui] Freetype2 position Y problem
From: Christian Boon ####@####.#### Date: 29 Oct 2007 08:20:22 +0000 Message-Id: <47259795.5020505@praxis-automation.nl> Greg Haerr wrote: > I have fixed various issues with freetype 1 and 2, including > the y position problem. The fixes are in the nano-X CVS, > or the microwindows-src-snapshot.tar.gz on the website. > Are they in the snapshot of 8 sept because i don't see a newer snapsnot? Chris | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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