Geoffrey McRae acb5c06794 egl: correct ImGui overlay luminance in HDR ...

Render ImGui to an intermediate SDR framebuffer and map it into the
native PQ or scRGB output using the Wayland surface reference white.
Preserve premultiplied alpha during conversion and limit composition to
damaged overlay regions.

2026-07-18 03:02:19 +10:00

11 KiB

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