Re: [PATCH v2 0/1] MR8694: win32u: Clear DC opengl drawable when releasing cached dce.

[xianwei zheng (＠baikaishiuc)]

xianwei zheng (@baikaishiuc) commented about dlls/win32u/dce.c:
> if (end_paint || (dce->flags & DCX_CACHE)) delete_clip_rgn( dce );
>          if (dce->flags & DCX_CACHE)
>          {
> +            set_dc_opengl_drawable( dce->hdc, NULL );

This code change caused screen tearing in our internal software.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/8694#note_114179