Finally, after a decade :P Looks pretty good, too, and is (almost)
properly scaled to the resolution (almost because the effect is a little
squashed, but I think the sw renderer does the same).
With what I have planned for frame buffers etc, GL 3.0 will be needed
even for the fixed-function GL renderer, and then I might even take the
GLSL renderer to 4.6 (dunno yet). This means that wgl will need to be
updated too, and I've found the info I need for that, but it's a bit
much to take on just yet.
This paves the way for clean initialization of the Vulkan renderer, and
very much cleans up the older renderer initialization code as gl and sw
are no longer intertwined.
