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[ft] Bug in FT_Stroker ?

From: Marcus Tillmanns
Subject: [ft] Bug in FT_Stroker ?
Date: Thu, 06 Jul 2006 17:50:02 +0200
User-agent: Thunderbird (Windows/20060516)

Hi all,

I'm new to this list. Let me introduce myself quickly. I'm a programmer from germany, currently experimenting with freetype. I'm trying to use freetype in one of my opengl projects.

Here's my problem. I don't know if this is an error of mine or the freetype lib.

I tried the following: Render a stroke for the charachter '6' in the Windows standard font Verdana.ttf with FT_Set_Pixel_Sizes( ... , 14);

Shortly, this failed :)

I did the following:
* Load the font
* create the Stroker
*         FT_Stroker_Set( stroker, 30,
                       0 );
* FT_Get_Glyph( m_ftFace->glyph, &glyph );
* FT_Glyph_Stroke( &glyph, stroker, true );

The call FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, 0, 1 ) fails with error code 6

I traced a lot into the Library, and found that the Bounding box has a xMin of around -20000000. This I traced down to an invalid value in outline->borders[1][41] where this value came from.

I don't know enough about the insides of freetype to narrow it down any more. It looked like the stroker has an invalid state at some point.

Could you give me any advice on how to handle this ? I'll try to use another LINECAP_XX for now.

Sincerly yours,

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