[Mesa-dev] ETC2 support with llvmpipe

[Roland Scheidegger]

FWIW this works by emulation of these formats - mesa will uncompress
them when specified to some uncompressed format. This means though
there's zero benefit in using them over uncompressed formats (same
memory requirements and performance when texturing, just increased
overhead when specifying the texture). Though of course I guess this
still saves disk space :-).
Unlike etc1, which should work "natively" though as a result is
currently very slow.

Roland


Am 31.03.2015 um 21:07 schrieb Ilia Mirkin:
> It should work fine, AFAIK. It's required by ES 3.0, and as you can
> see, llvmpipe exposes ES 3.0 contexts:
> 
> https://urldefense.proofpoint.com/v2/url?u=http-3A__people.freedesktop.org_-7Eimirkin_glxinfo_glxinfo.html-23p-3Des&d=AwIGaQ&c=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEs&r=Vjtt0vs_iqoI31UfJxBl7yv9I2FeiaeAYgMTLKRBc_I&m=iLPj6aKo64R-X4WRq15Niwc9-D6J6nBcxwNvnKzusyQ&s=hLUUCo2x4GrkbQhw-w0fJshn2dXmxUj1QfVV7PEcBos&e= 
> 
> On Tue, Mar 31, 2015 at 3:03 PM, Shervin Sharifi <shervin0 at gmail.com> wrote:
>> Hi,
>>
>>  I was wondering what's the status of ETC2 support with llvmpipe backend.
>>