Voodoo-related issues #4483

Tracking them here so they're all in one place:

• Lands of Lore 3 3dfx Glide Bad Textures #6250 ;
• Voodoo emulation displaying wrong textures #5067 ;
• Wrong/mixed up textures with Voodoo 3 in some Microsoft / Terminal Reality Games #4565 ;
• Red Hat Linux 8 (GNOME) displays abnormal in 86Box #4077 ;
• Voodoo 2/3: glitches at 4 render threads #2924 .