Bug 312933

Summary: [HDR] Introduce GainMap and ShareableGainMap
Product: WebKit Reporter: Said Abou-Hallawa <sabouhallawa>
Component: ImagesAssignee: Said Abou-Hallawa <sabouhallawa>
Status: RESOLVED FIXED    
Severity: Normal CC: sabouhallawa, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Bug Depends on:    
Bug Blocks: 301434    

Said Abou-Hallawa
Reported 2026-04-21 14:36:32 PDT
GainMap is where the HDR gain-map data will be stored. It is going to be serialized to GPU process through ShareableGainMap. The members of GainMap are: a CVPixelBuffer for the gain-map image, image-metadata and colorspace. ShareableGainMap will be responsible for generating the HDR image from the base image and the gain-map.
Attachments
Radar WebKit Bug Importer
Comment 1 2026-04-21 14:36:37 PDT
Said Abou-Hallawa
Comment 2 2026-04-22 21:29:31 PDT
EWS
Comment 3 2026-04-30 00:36:23 PDT
Committed 312341@main (ff6f5a8f4007): <https://commits.webkit.org/312341@main> Reviewed commits have been landed. Closing PR #63394 and removing active labels.
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