Originally posted by oibaf
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But even with an instanced drawing implementation in r300g this seems to be only some sort of emulation, because the hardware simply doesn't supports it. The end result is worse performance for the decoder.
For the motion vectors I could use an texture instead of a vertex buffer, but for the dct block list the texture size limit would also limit the picture size to something like 360x360, which isn't acceptable.
What I basically need is a attribute per primitive instead of per vertex (or it will increase the memory bandwith needed by 4).
Just give me a couple of days to thing about it and find a working solution.
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