On 2002.04.30 09:36 Peter Andersson wrote: >> To describe my problem with the open gl rendering every other vertical >> "pixel row" is jagged. It looks similar to the fields in a frozen video >> frame if you know what i mean, only these fields are horiziotal. >> Perhaps the screenshot will speak more clearly. >> >> Nice effect! ;-) >> >> It's probably the textures that must be byte swapped too. > > Do you mean the "texture mapping drivers" in DRI or in the program > (prboom)? If i run the program with indirect rendering the textures work > ok. I had the same problems when running quake. > > Peter >
I meant in the drivers. This is still not very clear - yesterday we discussed this in the IRC meeting -, because the colors are ok. Looking careful to the picture is seems that we have to word swap and not byte swap. Perhaps because within a pixel, the color disposition isn't changed across little/big endian architectures. Another thing that was suggested was to put memory barriers to avoid processor memory cache when accessing the memory-maped IO registers, which could be causing the noticed behaviour without DMA. I'll come back to you again when these things are commited to CVS. José Fonseca _______________________________________________ Dri-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/dri-devel
