Recognize cards that expose GLSL 1.30 as DX10 capable even if they don't support EXT_GPU_SHADER4

[Stefan Dösinger]

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Am 2014-06-02 23:11, schrieb Henri Verbeet:
> You're right, I mixed up 1.30 and 1.50 there. I probably should
> have actually checked before writing a reply. (We'll probably end
> up using 1.50 for e.g. geometry shaders on Mesa, but that aside.)
> Checking for ARB_shader_texture_lod as well is redundant in that
> case though.
No, because without ARB_shader_texture_lod we only support SM 2.0,
leading to inconsistencies between caps and PCI ID.

We can also decide that we don't care about such consistency. In this
case the version logic can be removed entirely, or just used when we
cannot match the GL renderer string and have to guess a GPU.

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