[PATCH 2/5] wined3d: Handle the SM4 SV_POSITION pixel shader input semantic in the GLSL shader backend.

[Stefan Dösinger]

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Am 2015-01-19 um 13:44 schrieb Henri Verbeet:
> This is (mostly) equivalent to the vPos register in SM3.
> ...
> +            if (!strcmp(semantic_name, "SV_POSITION"))
> +                shader_addline(buffer, "ps_in[%u]%s = vpos%s;\n",
> +                        shader->u.ps.input_reg_map[i], reg_mask, reg_mask);
The vpos variable has the d3d9 0.5 pixel offset applied, which to my knowledge is not correct for d3d10. Is this intentional? (I guess yes, either for simplicity to make patch 3 work and / or because we're still adding the offset on the vertex side even in d3d10.)

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