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[serialize] Implement for ClassDefFormat1

This commit is contained in:
Behdad Esfahbod 2018-12-13 15:50:13 -05:00
parent 5761031329
commit c8b43cbe31
1 changed files with 34 additions and 0 deletions
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34
src/hb-ot-layout-common.hh
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@ -1197,6 +1197,40 @@ struct ClassDefFormat1
return classValue[(unsigned int) (glyph_id - startGlyph)];
}
inline bool serialize (hb_serialize_context_t *c,
hb_codepoint_t first_glyph,
Supplier<HBUINT16> &glyphs,
Supplier<HBUINT16> &klasses,
unsigned int num_glyphs)
{
TRACE_SERIALIZE (this);
if (unlikely (!c->extend_min (*this))) return_trace (false);
if (unlikely (!num_glyphs))
{
startGlyph.set (0);
classValue.len.set (0);
return_trace (true);
}
hb_codepoint_t glyph_min = (hb_codepoint_t) -1, glyph_max = 0;
for (unsigned int i = 0; i < num_glyphs; i++)
{
glyph_min = MIN<hb_codepoint_t> (glyph_min, glyphs[i]);
glyph_max = MAX<hb_codepoint_t> (glyph_max, glyphs[i]);
}
startGlyph.set (glyph_min);
classValue.len.set (glyph_max - glyph_min + 1);
if (unlikely (!c->extend (classValue))) return_trace (false);
for (unsigned int i = 0; i < num_glyphs; i++)
classValue[glyphs[i] - glyph_min] = klasses[i];
glyphs += num_glyphs;
klasses += num_glyphs;
return_trace (true);
}
inline bool sanitize (hb_sanitize_context_t *c) const
{
TRACE_SANITIZE (this);