[PATCH] wined3d: Check GLSL version when using ARB_shader_bit_encoding with uvec4.

[Henri Verbeet]

On Fri, 19 Apr 2019 at 15:42, Paul Gofman <gofmanp at gmail.com> wrote:
> On 4/19/19 13:35, Józef Kucia wrote:
> > I'm not sure but I think that it could be preferred to disable
> > ARB_shader_bit_encoding when GLSL version < 1.30. We disable other
> > extensions conditionally in wined3d_adapter_init_gl_caps(), e.g.
> > ARB_shader_bit_encoding or ARB_shader_bit_encoding.
> > .
> >
> I was thinking of it, but my reasoning under not doing so was that
> ARB_shader_bit_encoding is potentially usable even with GLSL 1.2 if to
> avoid unsigned integers, and I thought marking the extension disabled
> while it is actually enabled can be a bit obscure.
>
It may be worth trying to make it work with ivec4() instead of
uvec4(). Ironlake is perhaps a little special in that it does have
true integer support, but not GLSL 1.30.