[ft] Should I call FT_Done_Glyph()?

[Jun.Wang]

Hi, I'm a newer. In my programme, after the freetype runing a while, the
memory is low and can't malloc again. So I think there is leak in my
programe. I use freetype2 2.2.1 and get bitmap data like follows:
       FT_Load_Glyph(face, glyphIndex,  FT_LOAD_RENDER);
       FT_Bitmap *bitmap = &(face->glyph->bitmap);
       ............
       //use bitmap->buffer to draw



Should I call FT_Done_Glyph? I don't use FT_Get_Glyph.
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