Should GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT be exposed in core profiles?

[pdoane]

DXT textures are available in glcore:

        <extension name="GL_EXT_texture_compression_s3tc" supported="gl|glcore|gles2|glsc2">
            <require>
                <enum name="GL_COMPRESSED_RGB_S3TC_DXT1_EXT"/>
                <enum name="GL_COMPRESSED_RGBA_S3TC_DXT1_EXT"/>
                <enum name="GL_COMPRESSED_RGBA_S3TC_DXT3_EXT"/>
                <enum name="GL_COMPRESSED_RGBA_S3TC_DXT5_EXT"/>
            </require>
        </extension>

But the sRGB variants are not:

        <extension name="GL_EXT_texture_sRGB" supported="gl">
            <require>
                <enum name="GL_COMPRESSED_SRGB_S3TC_DXT1_EXT"/>
                <enum name="GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT"/>
                <enum name="GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT"/>
                <enum name="GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT"/>
            </require>
        </extension>

[zmike]

@oddhack In the XML, is it even possible to mix and match supported profiles like this? I'd think all but the LUMINANCE formats here could potentially be supported in glcore, but I'm not sure we have precedent for a split.

[oddhack]

@oddhack In the XML, is it even possible to mix and match supported profiles like this? I'd think all but the LUMINANCE formats here could potentially be supported in glcore, but I'm not sure we have precedent for a split.

I'm not sure exactly what the ask is but there is some syntax for <require> tags filtering on 'api' and 'profile' attributes so it may be possible. The extension is written to GL 2.0 and predates core/compatibility profiles which came along in GL 3.2.

[zmike]

#662 maybe