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[>64k:layout:Coverage] Implement format 3/4 

Implements rest of https://github.com/be-fonts/boring-expansion-spec/issues/30
This commit is contained in:
Behdad Esfahbod 2022-07-06 13:02:49 -06:00
parent 25de6fb4e7
commit ca5c8a6419
1 changed files with 65 additions and 0 deletions
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65
src/hb-ot-layout-common.hh
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@ -1711,6 +1711,10 @@ struct Coverage
switch (u.format) {
case 1: return u.format1.get_coverage (glyph_id);
case 2: return u.format2.get_coverage (glyph_id);
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.get_coverage (glyph_id);
case 4: return u.format4.get_coverage (glyph_id);
#endif
default:return NOT_COVERED;
}
}
@ -1734,10 +1738,19 @@ struct Coverage
}
u.format = count <= num_ranges * 3 ? 1 : 2;
#ifndef HB_NO_BORING_EXPANSION
if (count && last > 0xFFFFu)
u.format += 2;
#endif
switch (u.format)
{
case 1: return_trace (u.format1.serialize (c, glyphs));
case 2: return_trace (u.format2.serialize (c, glyphs));
#ifndef HB_NO_BORING_EXPANSION
case 3: return_trace (u.format3.serialize (c, glyphs));
case 4: return_trace (u.format4.serialize (c, glyphs));
#endif
default:return_trace (false);
}
}
@ -1766,6 +1779,10 @@ struct Coverage
{
case 1: return_trace (u.format1.sanitize (c));
case 2: return_trace (u.format2.sanitize (c));
#ifndef HB_NO_BORING_EXPANSION
case 3: return_trace (u.format3.sanitize (c));
case 4: return_trace (u.format4.sanitize (c));
#endif
default:return_trace (true);
}
}
@ -1776,6 +1793,10 @@ struct Coverage
{
case 1: return u.format1.intersects (glyphs);
case 2: return u.format2.intersects (glyphs);
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.intersects (glyphs);
case 4: return u.format4.intersects (glyphs);
#endif
default:return false;
}
}
@ -1785,6 +1806,10 @@ struct Coverage
{
case 1: return u.format1.intersects_coverage (glyphs, index);
case 2: return u.format2.intersects_coverage (glyphs, index);
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.intersects_coverage (glyphs, index);
case 4: return u.format4.intersects_coverage (glyphs, index);
#endif
default:return false;
}
}
@ -1798,6 +1823,10 @@ struct Coverage
{
case 1: return u.format1.collect_coverage (glyphs);
case 2: return u.format2.collect_coverage (glyphs);
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.collect_coverage (glyphs);
case 4: return u.format4.collect_coverage (glyphs);
#endif
default:return false;
}
}
@ -1808,6 +1837,10 @@ struct Coverage
{
case 1: return u.format1.intersected_coverage_glyphs (glyphs, intersect_glyphs);
case 2: return u.format2.intersected_coverage_glyphs (glyphs, intersect_glyphs);
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.intersected_coverage_glyphs (glyphs, intersect_glyphs);
case 4: return u.format4.intersected_coverage_glyphs (glyphs, intersect_glyphs);
#endif
default:return ;
}
}
@ -1823,6 +1856,10 @@ struct Coverage
{
case 1: u.format1.init (c_.u.format1); return;
case 2: u.format2.init (c_.u.format2); return;
#ifndef HB_NO_BORING_EXPANSION
case 3: u.format3.init (c_.u.format3); return;
case 4: u.format4.init (c_.u.format4); return;
#endif
default: return;
}
}
@ -1832,6 +1869,10 @@ struct Coverage
{
case 1: return u.format1.more ();
case 2: return u.format2.more ();
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.more ();
case 4: return u.format4.more ();
#endif
default:return false;
}
}
@ -1841,6 +1882,10 @@ struct Coverage
{
case 1: u.format1.next (); break;
case 2: u.format2.next (); break;
#ifndef HB_NO_BORING_EXPANSION
case 3: u.format3.next (); break;
case 4: u.format4.next (); break;
#endif
default: break;
}
}
@ -1853,6 +1898,10 @@ struct Coverage
{
case 1: return u.format1.get_glyph ();
case 2: return u.format2.get_glyph ();
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3.get_glyph ();
case 4: return u.format4.get_glyph ();
#endif
default:return 0;
}
}
@ -1863,6 +1912,10 @@ struct Coverage
{
case 1: return u.format1 != o.u.format1;
case 2: return u.format2 != o.u.format2;
#ifndef HB_NO_BORING_EXPANSION
case 3: return u.format3 != o.u.format3;
case 4: return u.format4 != o.u.format4;
#endif
default:return false;
}
}
@ -1874,6 +1927,10 @@ struct Coverage
{
case 1: it.u.format1 = u.format1.__end__ (); break;
case 2: it.u.format2 = u.format2.__end__ (); break;
#ifndef HB_NO_BORING_EXPANSION
case 3: it.u.format3 = u.format3.__end__ (); break;
case 4: it.u.format4 = u.format4.__end__ (); break;
#endif
default: break;
}
return it;
@ -1882,6 +1939,10 @@ struct Coverage
private:
unsigned int format;
union {
#ifndef HB_NO_BORING_EXPANSION
CoverageFormat2_4<MediumTypes>::iter_t format4; /* Put this one first since it's larger; helps shut up compiler. */
CoverageFormat1_3<MediumTypes>::iter_t format3;
#endif
CoverageFormat2_4<SmallTypes>::iter_t format2; /* Put this one first since it's larger; helps shut up compiler. */
CoverageFormat1_3<SmallTypes>::iter_t format1;
} u;
@ -1893,6 +1954,10 @@ struct Coverage
HBUINT16 format; /* Format identifier */
CoverageFormat1_3<SmallTypes> format1;
CoverageFormat2_4<SmallTypes> format2;
#ifndef HB_NO_BORING_EXPANSION
CoverageFormat1_3<MediumTypes>format3;
CoverageFormat2_4<MediumTypes>format4;
#endif
} u;
public:
DEFINE_SIZE_UNION (2, format);