[Bug 22478] Major performance drop in King's Bounty games with shadows enabled

http://bugs.winehq.org/show_bug.cgi?id=22478

--- Comment #27 from Henri Verbeet   2010-05-05 11:31:14 ---
(In reply to comment #24)
>              context_apply_fbo_state(context);
> -
>            if(context->render_offscreen && context->current_rt != device->render_targets[0])
> -
>                context_attach_surface_fbo(context, GL_FRAMEBUFFER, 0, context->current_rt);

In the cases where it matters that change would corrupt the FBO cache, and
still give you the performance hit of FBO setup.