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LibGfx: Make ICCHeader use FourCC types for fourcc fields

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No behavior change. Arguably more expressive.
This commit is contained in:
Nico Weber 2023-01-18 22:16:10 -05:00 • committed by Linus Groh
parent 046c79b468
commit e5234f582d
2 changed files with 14 additions and 12 deletions
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24
Userland/Libraries/LibGfx/ICCProfile.cpp
View file

@ -86,7 +86,7 @@ ErrorOr<time_t> parse_date_time_number(DateTimeNumber const& date_time)
// ICC V4, 7.2 Profile header
struct ICCHeader {
BigEndian<u32> profile_size;
BigEndian<u32> preferred_cmm_type;
BigEndian<PreferredCMMType> preferred_cmm_type;
u8 profile_version_major;
u8 profile_version_minor_bugfix;
@ -102,14 +102,14 @@ struct ICCHeader {
BigEndian<PrimaryPlatform> primary_platform;
BigEndian<u32> profile_flags;
BigEndian<u32> device_manufacturer;
BigEndian<u32> device_model;
BigEndian<DeviceManufacturer> device_manufacturer;
BigEndian<DeviceModel> device_model;
BigEndian<u64> device_attributes;
BigEndian<u32> rendering_intent;
XYZNumber pcs_illuminant;
BigEndian<u32> profile_creator;
BigEndian<Creator> profile_creator;
u8 profile_id[16];
u8 reserved[28];
@ -146,9 +146,9 @@ Optional<PreferredCMMType> parse_preferred_cmm_type(ICCHeader const& header)
// which is not present in the "CMM Signatures" table in that PDF.
// "If no preferred CMM is identified, this field shall be set to zero (00000000h)."
if (header.preferred_cmm_type == 0)
if (header.preferred_cmm_type == PreferredCMMType { 0 })
return {};
return PreferredCMMType { header.preferred_cmm_type };
return header.preferred_cmm_type;
}
ErrorOr<Version> parse_version(ICCHeader const& header)
@ -266,9 +266,9 @@ Optional<DeviceManufacturer> parse_device_manufacturer(ICCHeader const& header)
// has its device manufacturer set to 'none', but https://www.color.org/signatureRegistry/?entityEntry=none-6E6F6E65 does not exist.
// "If not used this field shall be set to zero (00000000h)."
if (header.device_manufacturer == 0)
if (header.device_manufacturer == DeviceManufacturer { 0 })
return {};
return DeviceManufacturer { header.device_manufacturer };
return header.device_manufacturer;
}
Optional<DeviceModel> parse_device_model(ICCHeader const& header)
@ -282,9 +282,9 @@ Optional<DeviceModel> parse_device_model(ICCHeader const& header)
// has its device model set to 'none', but https://www.color.org/signatureRegistry/deviceRegistry?entityEntry=none-6E6F6E65 does not exist.
// "If not used this field shall be set to zero (00000000h)."
if (header.device_model == 0)
if (header.device_model == DeviceModel { 0 })
return {};
return DeviceModel { header.device_model };
return header.device_model;
}
ErrorOr<DeviceAttributes> parse_device_attributes(ICCHeader const& header)
@ -335,9 +335,9 @@ Optional<Creator> parse_profile_creator(ICCHeader const& header)
// For example, .icc files in /System/ColorSync/Profiles on macOS 12.6 set this to 'appl', which is a CMM signature, not a device signature (that one would be 'APPL').
// "If not used this field shall be set to zero (00000000h)."
if (header.profile_creator == 0)
if (header.profile_creator == Creator { 0 })
return {};
return Creator { header.profile_creator };
return header.profile_creator;
}
template<size_t N>

2
Userland/Libraries/LibGfx/ICCProfile.h
View file

@ -38,6 +38,8 @@ struct [[gnu::packed]] DistinctFourCC {
char c2() const { return (value >> 8) & 0xff; }
char c3() const { return value & 0xff; }
bool operator==(DistinctFourCC b) const { return value == b.value; }
u32 value { 0 };
};