Hello!
>> I'm just wondering if it's always necessary to maintain a copy of the
>> texture in Mesa?
Sorry I wasn't clear in this. There is need for a copy in main memory, I
don't have problem with it.
But currently Mesa and the FX driver is also has one copy in
the main memory.
My problem is that the driver has no way to avoid the sometimes very
inefficient conversions made by Mesa.
We could let the driver to handle the glTexImage/SubImage call nearly
directly, with it's optimized conversion, if it can.
And if Mesa needs for the image data for software rendering, etc. It could
ask the driver for the texture-image. I think this could be more efficient
for most applications.
Miklos.
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