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LibGfx: Implement serialization of XYZTagData

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Nico Weber 2023-02-17 20:35:29 -05:00 • committed by Andreas Kling
parent eb6dccb675
commit 931594fce3
1 changed files with 16 additions and 0 deletions
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16
Userland/Libraries/LibGfx/ICC/BinaryWriter.cpp
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@ -60,11 +60,27 @@ static ErrorOr<ByteBuffer> encode_multi_localized_unicode(MultiLocalizedUnicodeT
return bytes;
}
static ErrorOr<ByteBuffer> encode_xyz(XYZTagData const& tag_data)
{
// ICC v4, 10.31 XYZType
auto bytes = TRY(ByteBuffer::create_uninitialized(2 * sizeof(u32) + tag_data.xyzs().size() * sizeof(XYZNumber)));
*bit_cast<BigEndian<u32>*>(bytes.data()) = (u32)XYZTagData::Type;
*bit_cast<BigEndian<u32>*>(bytes.data() + 4) = 0;
auto* xyzs = bit_cast<XYZNumber*>(bytes.data() + 8);
for (size_t i = 0; i < tag_data.xyzs().size(); ++i)
xyzs[i] = tag_data.xyzs()[i];
return bytes;
}
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 XYZTagData::Type:
return encode_xyz(static_cast<XYZTagData const&>(tag_data));
}
return ByteBuffer {};
}