in r200UploadRectSubImage, shouldn't r200AllocDmaRegion just call for a 1024 byte alignment (since the blit offset looks like it needs to be 1024 byte aligned)? That'll get rid of the failed assertion with texrect when using 16bit textures - the radeon driver already uses 1024 byte alignment. Also, the region.address used looks ugly - wouldn't it better to use region.address + region.start (I'm not sure how exactly that dma/region mechanism works, but I'd guess it might be possible that there is some other region used already in the same dma buffer which would get overwritten).
Roland
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