[Mesa-dev] [PATCH 0/6] Add support for BPTC texture compression

Ilia Mirkin imirkin at alum.mit.edu
Thu Jul 24 07:43:07 PDT 2014


On Thu, Jul 24, 2014 at 10:37 AM, Neil Roberts <neil at linux.intel.com> wrote:
> Ian Romanick <idr at freedesktop.org> writes:
>
>> Is that NVIDIA's off-line compression tool, or is that the compressor
>> in the driver?
>
> I was talking about the offline compressor. I don't know what NVidia's
> online compressor is like. Yes, perhaps if we can get a quick compressor
> with reasonable results then it starts to make sense to compress on the
> fly.

Just a thought -- if online compression is highly unexpected, perhaps
it'd be reasonably to make a *horrid* compressor that doesn't rely on
any external libraries? I don't know how complex the BPTC format is,
but I suspect it may be possible to do a simple conversion that does
~0 compression (and may actually make things larger).

This would allow you to separate the problem of BPTC support in mesa
and all the potential external dependency/licensing issues.

Cheers,

  -ilia


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