[2/2] d3d11/tests: Add tests for SM5 instructions gather4_c/gather4_po_c

[Józef Kucia]

On Fri, May 19, 2017 at 2:50 AM, Sven Hesse <drmccoy at drmccoy.de> wrote:
> +    if (!init_test_context(&test_context, NULL))
> +        return;
> +
> +    device = test_context.device;
> +    context = test_context.immediate_context;
> +
> +    if (ID3D11Device_GetFeatureLevel(device) < D3D_FEATURE_LEVEL_11_0)
> +    {
> +        skip("Shader model 5 required for gather4_c/gather4_po_c.\n");
> +        release_test_context(&test_context);
> +        return;
> +    }

You should just pass the feature level to init_test_context(), and it
will skip the test for you.

> +
> +    texture_desc.Format = DXGI_FORMAT_D32_FLOAT;
> +    texture_desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
> +    hr = ID3D11Device_CreateTexture2D(device, &texture_desc, &resource_data, &texture);
> +    ok(SUCCEEDED(hr), "Failed to create texture, hr %#x.\n", hr);
> +    hr = ID3D11Device_CreateShaderResourceView(device, (ID3D11Resource *)texture, NULL, &srv);

The D32_FLOAT format cannot be used as SRV. You have to create the
texture with format DXGI_FORMAT_R32_TYPELESS, and then use
DXGI_FORMAT_R32_FLOAT for SRV. I think it may be interesting to test
with D3D11_BIND_DEPTH_STENCIL and without D3D11_BIND_DEPTH_STENCIL
because wined3d behaves a bit differently when depth stencil is
enabled.

> +    ok(SUCCEEDED(hr), "Fialed to create shader resource view, hr %#x.\n", hr);

Typo.

> +    ID3D11DeviceContext_PSSetSamplers(context, 0, 1, &sampler);

You don't need to set samplers multiple times. It can be done once,
after the sampler state is created.