f->use->used_glyphs = 0;
f->use->chars = (int*)rfx_calloc(sizeof(f->use->chars[0]) * f->numchars);
f->use->glyphs_specified = 0;
f->use->used_glyphs = 0;
f->use->chars = (int*)rfx_calloc(sizeof(f->use->chars[0]) * f->numchars);
f->use->glyphs_specified = 0;