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LibGfx: Implement serialization of S15Fixed16ArrayTagData

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Nico Weber 2023-02-17 20:42:20 -05:00 • committed by Andreas Kling
parent 931594fce3
commit 685e2da302
1 changed files with 16 additions and 0 deletions
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16
Userland/Libraries/LibGfx/ICC/BinaryWriter.cpp
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@ -60,6 +60,20 @@ static ErrorOr<ByteBuffer> encode_multi_localized_unicode(MultiLocalizedUnicodeT
return bytes;
}
static ErrorOr<ByteBuffer> encode_s15_fixed_array(S15Fixed16ArrayTagData const& tag_data)
{
// ICC v4, 10.22 s15Fixed16ArrayType
auto bytes = TRY(ByteBuffer::create_uninitialized(2 * sizeof(u32) + tag_data.values().size() * sizeof(s15Fixed16Number)));
*bit_cast<BigEndian<u32>*>(bytes.data()) = (u32)S15Fixed16ArrayTagData::Type;
*bit_cast<BigEndian<u32>*>(bytes.data() + 4) = 0;
auto* values = bit_cast<BigEndian<s15Fixed16Number>*>(bytes.data() + 8);
for (size_t i = 0; i < tag_data.values().size(); ++i)
values[i] = tag_data.values()[i].raw();
return bytes;
}
static ErrorOr<ByteBuffer> encode_xyz(XYZTagData const& tag_data)
{
// ICC v4, 10.31 XYZType
@ -79,6 +93,8 @@ static ErrorOr<ByteBuffer> encode_tag_data(TagData const& tag_data)
switch (tag_data.type()) {
case MultiLocalizedUnicodeTagData::Type:
return encode_multi_localized_unicode(static_cast<MultiLocalizedUnicodeTagData const&>(tag_data));
case S15Fixed16ArrayTagData::Type:
return encode_s15_fixed_array(static_cast<S15Fixed16ArrayTagData const&>(tag_data));
case XYZTagData::Type:
return encode_xyz(static_cast<XYZTagData const&>(tag_data));
}