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| author | Richard Hughes <richard@hughsie.com> | 2011-04-07 22:43:23 +0100 |
|---|---|---|
| committer | Richard Hughes <richard@hughsie.com> | 2011-04-07 22:43:37 +0100 |
| commit | 9ae0fba1816cba725306174f5fc1a35a05bd36ef (patch) | |
| tree | 3328308881fc23d329b587b0d6490959e288c3ea /doc | |
| parent | 69ea455a4187970ff178dd08818a6147acf8d452 (diff) | |
| download | colord-9ae0fba1816cba725306174f5fc1a35a05bd36ef.tar.gz | |
Use the embedded profile-id if it is available, else fallback to the file MD5
This should speed up startup as we can use the pre-cooked value rather than
using g_compute_checksum_for_data on every profile.
This speeds up startup by more than 70% if all the system profiles are fixed.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-and-profile-naming-spec.txt | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/doc/device-and-profile-naming-spec.txt b/doc/device-and-profile-naming-spec.txt index d43d67b..8ec13e0 100644 --- a/doc/device-and-profile-naming-spec.txt +++ b/doc/device-and-profile-naming-spec.txt @@ -129,10 +129,18 @@ and spaces and does not have to be escaped. A profile ID is the same for binary identical profiles, even if duplicated on the filesystem. -In line with other ICC reccomendations, the complete MD5 file checksum -is used for the profile ID, e.g. +In line with other ICC reccomendations, the embedded profile ID (bytes +84 to 99) is used, after converting it to a hexadecimal encoding. -Format: icc-{%checksum} +Format: icc-{%embedded-profile-id} +Example: icc-3c219b18958837493b586581f8c2a2a4 + +The ICC do not mandate the embedded profile-id and only recommend it, +and as such few profiles in the wild use a real value. +If the embedded profile ID is not set, the complete MD5 file checksum +should be used instead, e.g. + +Format: icc-{%file-checksum} Example: icc-bd847723f676e2b846daaf6759330624 If a physical profile does not exist (for instance, for embedded printer |