301434 2025-10-24 10:09:43 -0700 [HDR] Enable the feature flag HDRAcceleratedApplyGainMapEnabled 2026-05-15 16:39:14 -0700 1 1 1 Unclassified WebKit Images WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 312198 312933 313600 313601 313602 314452 1 sabouhallawa sabouhallawa sabouhallawa webkit-bug-importer oldest_to_newest 2154057 0 sabouhallawa 2025-10-24 10:09:43 -0700 Because of sandboxing, accelerated image decoding is disallowed. Applying the HDR gain map in the unaccelerated code path is inherently slow. Moving the HDR gain map from WebProcess to GPUProcess and applying it to the SDR image there should benefit from using the accelerated code path. 2154058 1 webkit-bug-importer 2025-10-24 10:10:51 -0700 <rdar://problem/163349653> 2154083 2 sabouhallawa 2025-10-24 11:21:40 -0700 Pull request: https://github.com/WebKit/WebKit/pull/44240 2154096 3 sabouhallawa 2025-10-24 11:36:58 -0700 Pull request: https://github.com/WebKit/WebKit/pull/52966 2200715 4 sabouhallawa 2026-04-15 10:53:38 -0700 rdar://157871315 2209228 5 sabouhallawa 2026-05-08 17:56:08 -0700 Let's make this bug just for enabling the feature flag HDRAcceleratedApplyGainMapEnabled. The remaining work is tracked by bug 314452. 2209358 6 sabouhallawa 2026-05-09 10:41:10 -0700 Pull request: https://github.com/WebKit/WebKit/pull/64616 2211309 7 ews-feeder 2026-05-15 16:39:12 -0700 Committed 313341@main (02ee8d8ba70b): <https://commits.webkit.org/313341@main> Reviewed commits have been landed. Closing PR #64616 and removing active labels.