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LibGfx+icc: Print profile flags

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These flags are always 0 in practice in all profiles I've seen so far,
but hey, probably nice to dump them anyways.
This commit is contained in:
Nico Weber 2022-12-31 13:50:52 -05:00 • committed by Andreas Kling
parent 88d5fd4b73
commit 0b46e572b5
3 changed files with 47 additions and 0 deletions
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30
Userland/Libraries/LibGfx/ICCProfile.h
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@ -84,6 +84,34 @@ enum class RenderingIntent {
};
StringView rendering_intent_name(RenderingIntent);
// ICC v4, 7.2.11 Profile flags field
class Flags {
public:
Flags();
// "The profile flags field contains flags."
Flags(u32);
u32 bits() const { return m_bits; }
// "These can indicate various hints for the CMM such as distributed processing and caching options."
// "The least-significant 16 bits are reserved for the ICC."
u16 color_management_module_bits() const { return bits() >> 16; }
u16 icc_bits() const { return bits() & 0xff; }
// "Bit position 0: Embedded profile (0 if not embedded, 1 if embedded in file)"
bool is_embedded_in_file() const { return (icc_bits() & 1) != 0; }
// "Bit position 1: Profile cannot be used independently of the embedded colour data (set to 1 if true, 0 if false)"
// Double negation isn't unconfusing, so this function uses the inverted, positive sense.
bool can_be_used_independently_of_embedded_color_data() const { return (icc_bits() & 2) == 0; }
static constexpr u32 KnownBitsMask = 3;
private:
u32 m_bits = 0;
};
class Profile : public RefCounted<Profile> {
public:
static ErrorOr<NonnullRefPtr<Profile>> try_load_from_externally_owned_memory(ReadonlyBytes bytes);
@ -92,6 +120,7 @@ public:
DeviceClass device_class() const { return m_device_class; }
ColorSpace data_color_space() const { return m_data_color_space; }
time_t creation_timestamp() const { return m_creation_timestamp; }
Flags flags() const { return m_flags; }
RenderingIntent rendering_intent() const { return m_rendering_intent; }
private:
@ -99,6 +128,7 @@ private:
DeviceClass m_device_class;
ColorSpace m_data_color_space;
time_t m_creation_timestamp;
Flags m_flags;
RenderingIntent m_rendering_intent;
};