Kenneth Graunke <[email protected]> writes: > A 16384x16384 RGBA8888 buffer takes 1GB of RAM. If the driver allocates > mipmap levels, that increases our storage requirements to 1.5GB. The > test doesn't use mipmapping, so this seems like a waste. > > Disabling mipmap filtering before allocating the texture provides a hint > to the driver, suggesting that it should only allocate space for the > base level. Most Mesa drivers (Gallium and i965) follow this practice. > > Signed-off-by: Kenneth Graunke <[email protected]>
It would probably be good for coverage if the fbo-maxsize test tested that you could render all the way down the miptree of a maximum-sized FBO, but given that it doesnt, this is: Reviewed-by: Eric Anholt <[email protected]>
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