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LibGfx: Implement serialization of ViewingConditionsTagData
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1 changed files with 17 additions and 0 deletions
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@ -180,6 +180,21 @@ static ErrorOr<ByteBuffer> encode_text(TextTagData const& tag_data)
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return bytes;
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}
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static ErrorOr<ByteBuffer> encode_viewing_conditions(ViewingConditionsTagData const& tag_data)
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{
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// ICC v4, 10.30 viewingConditionsType
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auto bytes = TRY(ByteBuffer::create_uninitialized(2 * sizeof(u32) + sizeof(ViewingConditionsHeader)));
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*bit_cast<BigEndian<u32>*>(bytes.data()) = (u32)ViewingConditionsTagData::Type;
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*bit_cast<BigEndian<u32>*>(bytes.data() + 4) = 0;
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auto& header = *bit_cast<ViewingConditionsHeader*>(bytes.data() + 8);
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header.unnormalized_ciexyz_values_for_illuminant = tag_data.unnormalized_ciexyz_values_for_illuminant();
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header.unnormalized_ciexyz_values_for_surround = tag_data.unnormalized_ciexyz_values_for_surround();
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header.illuminant_type = tag_data.illuminant_type();
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return bytes;
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}
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static ErrorOr<ByteBuffer> encode_xyz(XYZTagData const& tag_data)
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{
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// ICC v4, 10.31 XYZType
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@ -215,6 +230,8 @@ static ErrorOr<ByteBuffer> encode_tag_data(TagData const& tag_data)
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return encode_signature(static_cast<SignatureTagData const&>(tag_data));
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case TextTagData::Type:
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return encode_text(static_cast<TextTagData const&>(tag_data));
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case ViewingConditionsTagData::Type:
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return encode_viewing_conditions(static_cast<ViewingConditionsTagData const&>(tag_data));
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case XYZTagData::Type:
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return encode_xyz(static_cast<XYZTagData const&>(tag_data));
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}
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