http://bugs.winehq.org/show_bug.cgi?id=36399
--- Comment #22 from wineuser sickam@mail.ru --- Created attachment 48520 --> http://bugs.winehq.org/attachment.cgi?id=48520 Output with WINEDEBUG=+d3d_perf
Here you go. Indeed it gives some more information.
`warn:d3d_perf:wined3d_debug_callback 0x175368: "Program/shader state performance warning: Fragment Shader is going to be recompiled because the shader key based on GL state mismatches.`
For more see attachment.