[PATCH v2 0/3] MR450: wined3d: Do not pause transform feedback after every draw call.

[Zebediah Figura (＠zfigura)]

test_index_buffer_offset() occasionally fails (on some machines and/or Mesa versions) due to a bug in radeonsi. Although the bug has since been fixed upstream, I ended up writing these patches for it, and since they reduce GL calls I'm inclined to believe they're a good idea regardless.

The relevant Mesa bug is <https://gitlab.freedesktop.org/mesa/mesa/-/issues/6138>.

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  v2: wined3d: Do not pause transform feedback after every draw call.
      wined3d: Pause transform feedback in wined3d_context_gl_draw_textured_quad().
      wined3d: Pause transform feedback in wined3d_context_gl_draw_shaded_quad().
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/450