Re: [ft] Charmap encoding, something incorrect - getting '/LYH' instead of 'Live'

[Brady Duga]

It looks like you are getting the glyph index for your character code,  
and are then passing that to the load call that takes a character  
index. Either don't first translate the character code or use  
load_glyph instead of load_char.

--Brady

On Jul 28, 2007, at 8:27 PM, Richard Baverstock <address@hidden>  
wrote:

> I'm using freetype2 on mac os x to display some text on an image. I  
> load the font, get the glyph, get the bitmap, do the displaying  
> etc., no errors. However, instead of the word "Live" being  
> displayed, I get "/LYH".
>
> So it looks like something with my charmap selection or the char's  
> I'm sending to FT_Get_Char_Index are wrong. However, I can't figure  
> out *why* they are wrong. They are the equivalent ascii/unicode  
> values for L, i, v and e, and I'm using FT_ENCODING_UNICODE. Also  
> tried FT_ENCODING_APPLE_ROMAN, but that didn't help.
>
> Of interest, '/' is 'L' - 29, as are the rest of the characters ...  
> did I miss something where I had to *add* 29 (decimal) to the  
> equivalent ascii code?
>
> Anyone have any suggestions?
>
> Thanks,
> Richard
>
> ###### Code for loading FT_Face #########
>
> #define DEFAULT_ENCODING FT_ENCODING_UNICODE
>        int error = FT_New_Face(m_sFTLib,
>                                szFile.c_str(), 0, &m_pFont);
>
>        if (error)
>        {
>            TRACE(DbgPlugins, "Unable to create new face");
>            assert(0);
>            break;
>        }
>
>        error = FT_Select_Charmap(m_pFont, DEFAULT_ENCODING);
>
>        if (error)
>        {
>            TRACE(DbgPlugins, "Unable to set char map to encoding");
>            assert(0);
>        }
>
>        // Set font size
>        error = FT_Set_Pixel_Sizes(m_pFont, 0, ulSize);
>
>        if (error)
>        {
>            TRACE(DbgPlugins, "Unable to set pixel size to %lu",  
> ulSize);
>            assert(0);
>        }
>
>        res = Result_OK;
>
>
> ###### Code for getting the char/bitmap #######
>        U32 ulChar = (unsigned char)m_szText.at(i);
>
>        S32 ulGlyph = FT_Get_Char_Index(m_pFont, ulChar);
>
>        if (ulGlyph == 0)
>            TRACE(DbgPlugins, "Error finding glyph");
>
>        error = FT_Load_Char(m_pFont, ulGlyph, FT_LOAD_RENDER |  
> FT_LOAD_MONOCHROME);
>
>        if (error)
>            TRACE(DbgPlugins, "Error loading char");
>
>        TRACE(DbgPlugins, "Drawing 0x%08x", ulChar);
>
>        DrawGlyph(pBuffer, ulPitch,
>                  ulWidth, ulHeight,
>                  ulX, ulY,
>                  pSlot);
>
>        ulX += pSlot->advance.x >> 6;
>
>
>
>
>
>
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