RE: [ft] FT_Outline_Render not calling my span function.

[Erik Möller]

I'm in a bit of a rush so couldn't spot what's wrong in your snippet, but I 
just made a post earlier today in reply to another thread called "Questions 
with freetype". Check that out and compare with your source, it does exactly 
what you're trying to accomplish.

Erik Möller,
Timetrap
http://www.timetrap.se
http://www.emberwind.se


-----Original Message-----
From: address@hidden [mailto:address@hidden On Behalf Of Adrian May
Sent: den 26 februari 2009 10:59
To: address@hidden
Subject: [ft] FT_Outline_Render not calling my span function.

Hi folks,

The samples say something like "... load vectorial glyph in ‘outline’
..." before calling FT_Outline_Render. But how? I'm doing the
following and it ain't working. All the FT_ calls return success but
my span function never gets called. Any clues greatly appreciated...

void MySpanFunc(int y, int count, const FT_Span* spans, void* user )
{
        cout << "MySpanFunc\n";//this never happens
}
                                
void freetypeplay()
{
        DrawRect(0, 0, 240, 320, RGB(0,0,64));
        FT_Error err=0;
        FT_Library library;
        FT_Face face;
        FT_GlyphSlot slot = face->glyph;
        FT_Raster_Params  rps;
        rps.flags      = FT_RASTER_FLAG_AA | FT_RASTER_FLAG_DIRECT;
        rps.gray_spans = &MySpanFunc;
        rps.user       = 0;
        
        //Program says "FT all OK 0" so no errors returned by these calls...
        cout << (       
                (err=   FT_Init_FreeType( &library )                            
                )       ? "FT_Init_FreeType error " :
                (err=   FT_New_Face( library, "/mnt/stick/jabil/unifont.ttf", 
0, &face
)       )       ? "FT_New_Face error " :
                (err=   FT_Set_Char_Size(face, 0, 30*64, 100, 100)              
        )       ?
"FT_Set_Char_Size error " :
                (err=   FT_Load_Glyph( face, 65, FT_LOAD_DEFAULT )              
        )       ?
"FT_Load_Char error " :
                (err=   FT_Outline_Render( library, &slot->outline, &rps )      
)       ?
"FT_Outline_Render error " :
                "FT all OK " ) << err << endl;
}
                                
Thanks in advance,
Adrian.


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