Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54113

Wine-Bug: https://bugs.winehq.org//show_bug.cgi?id=54342

This forces mesa LLVMPIPE driver to use a fixed number of threads, and
greatly reduces its memory usage from the $(nproc) default. On Gitlab
this is 32 threads, which often exhaust VM space in 32bit tests.

Found when wpfgfx_cor3.dll failed to relocate in Bentley CONNECTION Client.

Fixes: 56d9e1a8.

The error count wasn't be increased if tracing was disabled. eg CI.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55720

Fixes 65e38813, which is otherwise no-op
without this change.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55688

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55722

This fails regularly on Win7.

Single float division (divss) is at least four time slower,
than multiplication (mulss).
More information: https://www.agner.org/optimize/instruction_tables.pdf

The units_to_pixels was optimized to use only multiplication (mulss),
and avoid using divisions (divss).

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55821

Fixes -Wbitfield-constant-conversion when enum is signed, causing WINED3D_GL_RES_TYPE_TEX_RECT value to be truncated to -4.