Re: [Mesa-dev] Naked DXTn support via ARB_texture_compression?

Sat, 19 Mar 2011 17:40:53 -0700 

On 20 March 2011 00:42, Petr Sebor <[email protected]> wrote:
> And this is not an undocumented hack. ARB_texture_compression explicitly
> defines mechanisms to work with 'unknown' formats providing a safe
> passthrough.
> Thats what glCompressedTexImage actually is for.
>
Sure, the CompressedTexImage* calls are in principle agnostic to the
specific format. But without the s3tc extension there's nothing that
defines e.g. GL_COMPRESSED_RGBA_S3TC_DXT5_EXT. So you can't use those
tokens, unless you have another extension that defines them.
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