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Isaac: self-enabling wrapper diagnostics for OpenGL RGB flicker - #52

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butilly wants to merge 1 commit into
wrapper-25from
fix/isaac-wrapper-diagnostic
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butilly wants to merge 1 commit into
wrapper-25from
fix/isaac-wrapper-diagnostic

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@butilly

@butilly butilly commented Oct 31, 2026

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The Binding of Isaac: Rebirth (isaac-ng.exe via REPENTOGONLauncher.exe), thread 1566071409397076188. Menus render normally; gameplay rapidly flickers RGB on Mali-G925 using OpenGL/Zink. Wrapper and Wrapper-gamenative, mesa_glthread true/false were already tested. Latest report 1566078979134464070 has WRAPPER_DIAG=1 and logging enabled but no WRAPPER_DIAG, FMT or COPY output. Warning names fillModeNonSolid and shaderClipDistance. Average FPS 46.2; gameplay samples around 60 FPS, no crash, quick-menu exit. Existing source already has capability, format and copy probes; this first diagnostic package enables them during native wrapper initialization and emits a package marker, plus native versus advertised values for the two missing features. No rendering workaround or capability spoof added. Keep Proton 9 x86_64 and Box64. Next report must verify the loaded marker and identify image translation/copy activity at gameplay onset before choosing a fix. Cause remains unconfirmed.

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