[Mesa-dev] [PATCH 0/5] OpenGL ES improvements

[Alex Deucher]

On Mon, Aug 4, 2014 at 11:54 AM, Roland Scheidegger <sroland at vmware.com> wrote:
> Am 03.08.2014 14:40, schrieb Marek Olšák:
>> Hi everyone,
>>
>> This series adds:
>> - Support for ETC2 texture formats to all gallium drivers. This is a requirement for OpenGL ES 3.0, which can now be considered feature-complete as far as I know. Textures of such formats are loaded as plain R/RG/RGBA in st/mesa due to lack of hardware support. There is no real gallium support for the new formats. The i965 driver is doing the same thing.
>> - Support for GL_ARB_ES3_compatibility, which requires ETC2 texture formats, for all gallium drivers that support GLSL 3.30.
>> - Support for GL_OES_compressed_ETC1_RGB8_texture for all gallium drivers. This is also loaded as plain RGBA by st/Mesa.
>>
>> Please review.
>>
>> Marek
>
> The series looks ok to me though I think it would be good if real
> etc1/etc2 support was added to gallium (well etc1 is already there).
> There's quite plenty of hw with gallium supported drivers which can do
> at least some of it:
> - all adrenos 2xx/3xx can do etc1 unless I'm mistaken, and adreno 3xx
> should be able to do etc2.
> - some intel hw (baytrail/gen8) can do etc1/etc2.
> - gk20a probably also could do etc1/etc2.
>
> I am actually sort of surprised some amd parts can't do it (kabini and
> friends), are you sure they really can't?

Yes.  They don't support it.

Alex