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LibGfx: Move ICC::Profile towards "Fallible Constructors" pattern

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Not quite there yet due to check_required_tags() / check_tag_types(),
but getting closer :^)
This commit is contained in:
Nico Weber 2023-02-14 13:09:43 -05:00 • committed by Andreas Kling
parent db614b47dd
commit 9ba3c8e36d
2 changed files with 11 additions and 4 deletions
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9
Userland/Libraries/LibGfx/ICC/Profile.cpp
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@ -1377,10 +1377,11 @@ ErrorOr<void> Profile::check_tag_types()
ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(ReadonlyBytes bytes)
{
auto profile = TRY(try_make_ref_counted<Profile>());
profile->m_header = TRY(read_header(bytes));
bytes = bytes.trim(profile->on_disk_size());
profile->m_tag_table = TRY(read_tag_table(bytes));
auto header = TRY(read_header(bytes));
bytes = bytes.trim(header.on_disk_size);
auto tag_table = TRY(read_tag_table(bytes));
auto profile = TRY(try_make_ref_counted<Profile>(header, move(tag_table)));
TRY(profile->check_required_tags());
TRY(profile->check_tag_types());

6
Userland/Libraries/LibGfx/ICC/Profile.h
View file

@ -210,6 +210,12 @@ class Profile : public RefCounted<Profile> {
public:
static ErrorOr<NonnullRefPtr<Profile>> try_load_from_externally_owned_memory(ReadonlyBytes);
Profile(ProfileHeader const& header, OrderedHashMap<TagSignature, NonnullRefPtr<TagData>> tag_table)
: m_header(header)
, m_tag_table(move(tag_table))
{
}
Optional<PreferredCMMType> preferred_cmm_type() const { return m_header.preferred_cmm_type; }
Version version() const { return m_header.version; }
DeviceClass device_class() const { return m_header.device_class; }