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LibGfx: Store profile id MD5 in ICCProfile
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2 changed files with 21 additions and 0 deletions
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@ -233,6 +233,23 @@ ErrorOr<XYZ> parse_pcs_illuminant(ICCHeader const& header)
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return xyz;
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}
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Optional<Crypto::Hash::MD5::DigestType> parse_profile_id(ICCHeader const& header)
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{
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// ICC v4, 7.2.18 Profile ID field
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// "A profile ID field value of zero (00h) shall indicate that a profile ID has not been calculated."
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bool did_calculate_profile_id = false;
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for (u8 b : header.profile_md5)
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if (b != 0)
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did_calculate_profile_id = true;
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if (!did_calculate_profile_id)
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return {};
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Crypto::Hash::MD5::DigestType md5;
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static_assert(sizeof(md5.data) == sizeof(header.profile_md5));
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memcpy(md5.data, header.profile_md5, sizeof(md5.data));
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return md5;
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}
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}
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StringView device_class_name(DeviceClass device_class)
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@ -364,6 +381,7 @@ ErrorOr<NonnullRefPtr<Profile>> Profile::try_load_from_externally_owned_memory(R
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profile->m_flags = Flags { header.profile_flags };
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profile->m_rendering_intent = TRY(parse_rendering_intent(header));
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profile->m_pcs_illuminant = TRY(parse_pcs_illuminant(header));
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profile->m_id = parse_profile_id(header);
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return profile;
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}
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@ -11,6 +11,7 @@
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#include <AK/NonnullRefPtr.h>
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#include <AK/RefCounted.h>
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#include <AK/Span.h>
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#include <LibCrypto/Hash/MD5.h>
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namespace Gfx::ICC {
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@ -136,6 +137,7 @@ public:
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Flags flags() const { return m_flags; }
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RenderingIntent rendering_intent() const { return m_rendering_intent; }
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const XYZ& pcs_illuminant() const { return m_pcs_illuminant; }
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Optional<Crypto::Hash::MD5::DigestType> const& id() const { return m_id; }
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private:
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Version m_version;
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@ -146,6 +148,7 @@ private:
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Flags m_flags;
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RenderingIntent m_rendering_intent;
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XYZ m_pcs_illuminant;
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Optional<Crypto::Hash::MD5::DigestType> m_id;
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};
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}
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