On Wednesday, November 9, 2016 10:49:51 PM PST Strasser, Kevin wrote:
> On Wed, Nov 9, 2016 at 12:44 PM, Kenneth Graunke <kenn...@whitecape.org> 
> wrote:
> > On Wednesday, September 21, 2016 4:32:27 PM PST Kevin Strasser wrote:
> > > The extension spec has been revised to include dependencies for OpenGL ES 
> > > 2
> > > and 3.
> > >
> > > Signed-off-by: Kevin Strasser <kevin.stras...@intel.com>
> > > ---
> > >  src/mesa/main/extensions_table.h | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/src/mesa/main/extensions_table.h 
> > > b/src/mesa/main/extensions_table.h
> > > index c40dd79..977897e 100644
> > > --- a/src/mesa/main/extensions_table.h
> > > +++ b/src/mesa/main/extensions_table.h
> > > @@ -251,7 +251,7 @@ EXT(EXT_texture_buffer                      , 
> > > OES_texture_buffer
> > >  EXT(EXT_texture_compression_dxt1            , 
> > > ANGLE_texture_compression_dxt          , GLL, GLC, ES1, ES2, 2004)
> > >  EXT(EXT_texture_compression_latc            , 
> > > EXT_texture_compression_latc           , GLL,  x ,  x ,  x , 2006)
> > >  EXT(EXT_texture_compression_rgtc            , 
> > > ARB_texture_compression_rgtc           , GLL, GLC,  x ,  x , 2004)
> > > -EXT(EXT_texture_compression_s3tc            , 
> > > EXT_texture_compression_s3tc           , GLL, GLC,  x ,  x , 2000)
> > > +EXT(EXT_texture_compression_s3tc            , 
> > > EXT_texture_compression_s3tc           , GLL, GLC,  x , ES2, 2000)
> > >  EXT(EXT_texture_cube_map                    , ARB_texture_cube_map       
> > >             , GLL,  x ,  x ,  x , 2001)
> > >  EXT(EXT_texture_cube_map_array              , OES_texture_cube_map_array 
> > >             ,  x ,  x ,  x ,  31, 2014)
> > >  EXT(EXT_texture_edge_clamp                  , dummy_true                 
> > >             , GLL,  x ,  x ,  x , 1997)
> > >
> >
> > (resending from the correct email address...)
> >
> > I believe that _mesa_is_compressed_format (in src/mesa/main/glformats.c)
> > needs updating.
> >
> > It looks like SRGB S3TC texture formats require:
> > - EXT_texture_compression_s3tc
> > - On GL: EXT_texture_sRGB
> > - On ES: EXT_texture_sRGB_decode
> >
> > https://www.khronos.org/registry/gles/extensions/EXT/texture_sRGB_decode.txt
> >
> > So it probably needs to be:
> >
> >          return ctx->Extensions.EXT_texture_compression_s3tc &&
> >                 (_mesa_is_gles(ctx) ? 
> > ctx->Extensions.EXT_texture_sRGB_decode
> >                                     : ctx->Extensions.EXT_texture_sRGB);
> >
> > Otherwise this looks good to me.
> 
> Understood. Also, I noticed that the s3tc formats are being rejected by 
> Tex[Sub]Image2d due to the additional format restrictions in
> texture_format_error_check_gles(). I'll fix these things up and submit a v2
> after I finish extending the s3tc piglit tests.
> 
> Thanks,
> Kevin

Perfect.  Thanks again for doing this!

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