[ddraw] Mipmap creation with DDSCAPS_COMPLEX, DDSCAPS_MIPMAP, and no mipmap count

[Lionel Ulmer]

As already said by Mike, nice patch (and also nice test script). I think I
was the one who added the previous comment (and it's true that I only tested
it without the COMPLEX bit set).

The only (minor) gripe I would have with this patch is the use of the 'log()
/ log()' to compute the mipmap count (I usually dislike floating point match
- it's maybe my background in embedded programming where FPU are inexistant
:-) )... I would have found it simpler to just have a 'while (min > 0) { min
>>= 1; count += 1 }'.

        Lionel

-- 
		 Lionel Ulmer - http://www.bbrox.org/