[PATCH v5 0/8] MR7758: win32u: Introduce a generic pbuffer implementation.

[Rémi Bernon]

--
  v5: win32u: Add a nulldrv pbuffer stub implementation.
      winemac: Use the generic pbuffer implementation.
      winewayland: Use the generic pbuffer implementation.
      win32u: Introduce a generic pbuffer implementation from winex11.
      opengl32/tests: Add more WGL_ARB_render_texture tests.
      opengl32/tests: Add more WGL_ARB_pbuffer tests.
      opengl32/tests: Avoid leaking contexts.
      win32u: Handle some pixel format initialization.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/7758