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LibGfx+icc: Add ICCProfile support for curveType and print it

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This commit is contained in:
Nico Weber 2023-01-23 13:14:20 -05:00 • committed by Linus Groh
parent ea31aba0f4
commit 67f718aa3f
3 changed files with 66 additions and 1 deletions
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25
Userland/Libraries/LibGfx/ICCProfile.cpp
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@ -550,6 +550,29 @@ static ErrorOr<void> check_reserved(ReadonlyBytes tag_bytes)
return {};
}
ErrorOr<NonnullRefPtr<CurveTagData>> CurveTagData::from_bytes(ReadonlyBytes bytes, u32 offset, u32 size)
{
// ICC v4, 10.6 curveType
VERIFY(tag_type(bytes) == Type);
TRY(check_reserved(bytes));
if (bytes.size() < 3 * sizeof(u32))
return Error::from_string_literal("ICC::Profile: curveType has not enough data for count");
u32 count = *bit_cast<BigEndian<u32> const*>(bytes.data() + 8);
if (bytes.size() < 3 * sizeof(u32) + count * sizeof(u16))
return Error::from_string_literal("ICC::Profile: curveType has not enough data for curve points");
BigEndian<u16> const* raw_values = bit_cast<BigEndian<u16> const*>(bytes.data() + 12);
Vector<u16> values;
TRY(values.try_resize(count));
for (u32 i = 0; i < count; ++i)
values[i] = raw_values[i];
return adopt_ref(*new CurveTagData(offset, size, move(values)));
}
ErrorOr<NonnullRefPtr<MultiLocalizedUnicodeTagData>> MultiLocalizedUnicodeTagData::from_bytes(ReadonlyBytes bytes, u32 offset, u32 size)
{
// ICC v4, 10.15 multiLocalizedUnicodeType
@ -870,6 +893,8 @@ ErrorOr<NonnullRefPtr<TagData>> Profile::read_tag(ReadonlyBytes bytes, Detail::T
auto type = tag_type(tag_bytes);
switch (type) {
case CurveTagData::Type:
return CurveTagData::from_bytes(tag_bytes, entry.offset_to_beginning_of_tag_data_element, entry.size_of_tag_data_element);
case MultiLocalizedUnicodeTagData::Type:
return MultiLocalizedUnicodeTagData::from_bytes(tag_bytes, entry.offset_to_beginning_of_tag_data_element, entry.size_of_tag_data_element);
case S15Fixed16ArrayTagData::Type: