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Everywhere: codepoint => code point

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This commit is contained in:
Andreas Kling 2021-06-01 10:01:11 +02:00
parent a8ae8b24de
commit 12a42edd13
18 changed files with 240 additions and 240 deletions
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36
Userland/Libraries/LibTTF/Cmap.cpp
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@ -75,72 +75,72 @@ Optional<Cmap::Subtable> Cmap::subtable(u32 index) const
}
// FIXME: This only handles formats 4 (SegmentToDelta) and 12 (SegmentedCoverage) for now.
u32 Cmap::Subtable::glyph_id_for_codepoint(u32 codepoint) const
u32 Cmap::Subtable::glyph_id_for_code_point(u32 code_point) const
{
switch (format()) {
case Format::SegmentToDelta:
return glyph_id_for_codepoint_table_4(codepoint);
return glyph_id_for_code_point_table_4(code_point);
case Format::SegmentedCoverage:
return glyph_id_for_codepoint_table_12(codepoint);
return glyph_id_for_code_point_table_12(code_point);
default:
return 0;
}
}
u32 Cmap::Subtable::glyph_id_for_codepoint_table_4(u32 codepoint) const
u32 Cmap::Subtable::glyph_id_for_code_point_table_4(u32 code_point) const
{
u32 segcount_x2 = be_u16(m_slice.offset_pointer((u32)Table4Offsets::SegCountX2));
if (m_slice.size() < segcount_x2 * (u32)Table4Sizes::NonConstMultiplier + (u32)Table4Sizes::Constant) {
return 0;
}
for (u32 offset = 0; offset < segcount_x2; offset += 2) {
u32 end_codepoint = be_u16(m_slice.offset_pointer((u32)Table4Offsets::EndConstBase + offset));
if (codepoint > end_codepoint) {
u32 end_code_point = be_u16(m_slice.offset_pointer((u32)Table4Offsets::EndConstBase + offset));
if (code_point > end_code_point) {
continue;
}
u32 start_codepoint = be_u16(m_slice.offset_pointer((u32)Table4Offsets::StartConstBase + segcount_x2 + offset));
if (codepoint < start_codepoint) {
u32 start_code_point = be_u16(m_slice.offset_pointer((u32)Table4Offsets::StartConstBase + segcount_x2 + offset));
if (code_point < start_code_point) {
break;
}
u32 delta = be_u16(m_slice.offset_pointer((u32)Table4Offsets::DeltaConstBase + segcount_x2 * 2 + offset));
u32 range = be_u16(m_slice.offset_pointer((u32)Table4Offsets::RangeConstBase + segcount_x2 * 3 + offset));
if (range == 0) {
return (codepoint + delta) & 0xffff;
return (code_point + delta) & 0xffff;
}
u32 glyph_offset = (u32)Table4Offsets::GlyphOffsetConstBase + segcount_x2 * 3 + offset + range + (codepoint - start_codepoint) * 2;
u32 glyph_offset = (u32)Table4Offsets::GlyphOffsetConstBase + segcount_x2 * 3 + offset + range + (code_point - start_code_point) * 2;
VERIFY(glyph_offset + 2 <= m_slice.size());
return (be_u16(m_slice.offset_pointer(glyph_offset)) + delta) & 0xffff;
}
return 0;
}
u32 Cmap::Subtable::glyph_id_for_codepoint_table_12(u32 codepoint) const
u32 Cmap::Subtable::glyph_id_for_code_point_table_12(u32 code_point) const
{
u32 num_groups = be_u32(m_slice.offset_pointer((u32)Table12Offsets::NumGroups));
VERIFY(m_slice.size() >= (u32)Table12Sizes::Header + (u32)Table12Sizes::Record * num_groups);
for (u32 offset = 0; offset < num_groups * (u32)Table12Sizes::Record; offset += (u32)Table12Sizes::Record) {
u32 start_codepoint = be_u32(m_slice.offset_pointer((u32)Table12Offsets::Record_StartCode + offset));
if (codepoint < start_codepoint) {
u32 start_code_point = be_u32(m_slice.offset_pointer((u32)Table12Offsets::Record_StartCode + offset));
if (code_point < start_code_point) {
break;
}
u32 end_codepoint = be_u32(m_slice.offset_pointer((u32)Table12Offsets::Record_EndCode + offset));
if (codepoint > end_codepoint) {
u32 end_code_point = be_u32(m_slice.offset_pointer((u32)Table12Offsets::Record_EndCode + offset));
if (code_point > end_code_point) {
continue;
}
u32 glyph_offset = be_u32(m_slice.offset_pointer((u32)Table12Offsets::Record_StartGlyph + offset));
return codepoint - start_codepoint + glyph_offset;
return code_point - start_code_point + glyph_offset;
}
return 0;
}
u32 Cmap::glyph_id_for_codepoint(u32 codepoint) const
u32 Cmap::glyph_id_for_code_point(u32 code_point) const
{
auto opt_subtable = subtable(m_active_index);
if (!opt_subtable.has_value()) {
return 0;
}
auto subtable = opt_subtable.value();
return subtable.glyph_id_for_codepoint(codepoint);
return subtable.glyph_id_for_code_point(code_point);
}
Optional<Cmap> Cmap::from_slice(const ReadonlyBytes& slice)