[HarfBuzz] Thai rendering problem

[Behdad Esfahbod]

Hi Sun Mi Shin,

Can you provide input text and HarfBuzz versus expected output?

Also, 0.7.0 is fairly old, please use a newer snapshot from here:

  http://www.freedesktop.org/software/harfbuzz/release/

There are very small changes in the API.  The only one I can remember off the
top of my head is that hb_buffer_create() does not take any parameter anymore.

Cheers,
behdad

On 07/14/2012 02:06 PM, 신선미 wrote:
> Hi, I'm Sun Mi Shin.
> 
> I'm HB newers and using HB for rendering Thai language.
> 
> I ran simple application but it display incorrect output.
> 
> I test thai rendering with HB shape output( info codepoint, glyph positions ).
> 
> But the glyphs appears that they are just decomposed when I print them out on
> our canvas.
> 
>  
> 
> My test program is below. Am I doing somethig wrong?
> 
> Please correct following program problems.
> 
> I'm using HB 0.7.0.
> 
> Thank you.
> 
> 
>    buffer = hb_buffer_create(len);
>    hb_buffer_set_unicode_funcs(buffer, hb_unicode_funcs_get_default());
>    hb_buffer_set_language(buffer, hb_language_from_string("th"));
>    hb_buffer_set_script(buffer, HB_SCRIPT_THAI);
> 
>    hb_buffer_set_direction(buffer, HB_DIRECTION_LTR);
> 
>    hb_buffer_add_utf32(buffer, (const uint32_t *) text, len, 0, len);
> 
>  
> 
>    hb_font_t *hb_ft_font;
> 
>    hb_font_t *hb_sub_font;
> 
>    hb_ft_font = hb_ft_font_create(face, NULL);
>    hb_sub_font = hb_font_create_sub_font(hb_ft_font);
>    hb_font_destroy(hb_ft_font);
> 
>   
> 
>    hb_shape(hb_sub_font, buffer, NULL, 0);
> 
>  
> 
>    unsigned int slen = hb_buffer_get_length(buffer);
>    positions = hb_buffer_get_glyph_positions(buffer, NULL);
>    infos = hb_buffer_get_glyph_infos(buffer, NULL);
> 
> 
> 
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