[Mesa-dev] [PATCH v2 2/2] st/mesa: provide GL_OES_copy_image support by caching the original ETC data

Matt Turner mattst88 at gmail.com
Sat Jul 16 20:29:42 UTC 2016

On Sat, Jul 16, 2016 at 9:21 AM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
> The additional provision of GL_OES_copy_image is that it work for ETC.
> However many desktop GPUs don't have native ETC support, so st/mesa does
> the decoding by hand. Instead of discarding the compressed data, keep it
> around in CPU memory. Use it when performing image copies.
> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>

Although the bug is filed against i965 specifically, there is

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