Bug Hunting Session
Bug 121327 - Support multi-colored fonts using CBDT/SBIX tables
Summary: Support multi-colored fonts using CBDT/SBIX tables
Status: NEW
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: LibreOffice (show other bugs)
(earliest affected)
Hardware: All All
: medium enhancement
Assignee: Not Assigned
: 128387 (view as bug list)
Depends on: HarfBuzz
Blocks: Font-Rendering
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Reported: 2018-11-10 07:12 UTC by Volga
Modified: 2019-10-25 14:23 UTC (History)
4 users (show)

See Also:
Crash report or crash signature:


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Description Volga 2018-11-10 07:12:25 UTC
This is similar to bug 104403, but for fonts with CBDT/sbix tables instead (https://docs.microsoft.com/zh-cn/typography/opentype/spec/cbdt https://docs.microsoft.com/zh-cn/typography/opentype/spec/sbix). This might be a trickier as instead of rendering layered glyphs with different colors we will need to render raster graphics. We already have decent raster image support, but LibreOffice doesn’t make use of it from a low level as text rendering in VCL. Since HarfBuzz got support in version 2.1.0, it’s possible to render color glyphs via accessing these tables.

Steps to Reproduce:

Actual Results:

Expected Results:

Reproducible: Always

User Profile Reset: No

Additional Info:
Comment 1 Xisco Faulí 2019-01-14 18:27:45 UTC
Moving to NEW
Comment 2 V Stuart Foote 2019-10-25 14:23:54 UTC
*** Bug 128387 has been marked as a duplicate of this bug. ***