If glColorMaterial is set to track current color and none is supplied,
it gets disabled.
glMaterial is reset when I think it is necessary.
Slow mode now has defaults for when fvf parms are not supplied (as per
fast mode).
Slow mode now sets up the specular color (forgot that bit previously,
I think!).
Trace now lists the front, back and stencil buffers for ease of
debugging.
traps occur.
Correct number of texture coords supplied in both fast and slow mode.
Dont supply a default colour of white when diffuse mode is disabled.
Reenable fast mode.
their impact of performance changes.
SetTransform almost rewritten in a much neater way, and in
coordination with drawprim it significantly reduces the number of
times that we reload the matrixes.
Handle alphaop disabled but color op not-disable in a more appropriate
way (Docs say this is an illegal state and then proceed to use it).
Trace out textures as they are created.
Update the comments around the debug code and complete the debugging
set so textures which are used in the game can also be viewed.
Jason Edmeades