[PATCH v2 2/3] d3dcompiler/tests: Port some tests to shader model 4.

[Zebediah Figura]

On 2/25/20 11:32 AM, Matteo Bruni wrote:
> On Tue, Feb 18, 2020 at 9:32 PM Zebediah Figura <z.figura12 at gmail.com> wrote:
>>
>> In particular, port those for which there is an interesting difference in
>> code generation.
>>
>> Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
>> ---
>> It might make more sense to put this in a separate file, à la ddraw, since
>> almost no code is shared between d3d9 and d3d11 parts.
> 
> It might be a good idea. Another potential advantage is that then
> we'll have two separate entries on test.winehq.org.
> I'm okay either way though.
> 
>> +#define init_d3d11_test_context(a) init_d3d11_test_context_(__LINE__, a)
>> +static BOOL init_d3d11_test_context_(unsigned int line, struct d3d11_test_context *context)
>> +{
>> +    const D3D11_TEXTURE2D_DESC texture_desc =
>> +    {
>> +        .Width = 640,
>> +        .Height = 480,
>> +        .MipLevels = 1,
>> +        .ArraySize = 1,
>> +        .Format = DXGI_FORMAT_R32G32B32A32_FLOAT,
>> +        .SampleDesc.Count = 1,
>> +        .Usage = D3D11_USAGE_DEFAULT,
>> +        .BindFlags = D3D11_BIND_RENDER_TARGET,
>> +    };
>> +    unsigned int rt_width, rt_height;
>> +    D3D11_VIEWPORT vp;
>> +    HRESULT hr;
>> +    RECT rect;
>> +
>> +    memset(context, 0, sizeof(*context));
>> +
>> +    if (!(context->device = create_device()))
>> +    {
>> +        skip_(__FILE__, line)("Failed to create device.\n");
>> +        return FALSE;
>> +    }
>> +
>> +    rt_width = 640;
>> +    rt_height = 480;
>> +    SetRect(&rect, 0, 0, rt_width, rt_height);
>> +    AdjustWindowRect(&rect, WS_OVERLAPPEDWINDOW | WS_VISIBLE, FALSE);
>> +    context->window = CreateWindowA("static", "d3d11_test", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
>> +            0, 0, rect.right - rect.left, rect.bottom - rect.top, NULL, NULL, NULL, NULL);
>> +    context->swapchain = create_swapchain(context->device, context->window);
> 
> This reminds me that's probably better to do something similar WRT the
> window for d3d9 too, in the previous patch.

Sure. I mostly left it as is because it doesn't save much code.

> 
>> +#define get_readback_vec4_d3d11(context, x, y) get_readback_vec4_d3d11_(__LINE__, context, x, y)
>> +static struct vec4 get_readback_vec4_d3d11_(unsigned int line, struct d3d11_test_context *context,
>> +        unsigned int x, unsigned int y)
>> +{
>> +    ID3D11Device *device = context->device;
>> +    D3D11_MAPPED_SUBRESOURCE map_desc;
>> +    D3D11_TEXTURE2D_DESC texture_desc;
>> +    ID3D11Resource *rb_texture;
>> +    struct vec4 ret;
>> +    HRESULT hr;
>> +
>> +    ID3D11Texture2D_GetDesc(context->rt, &texture_desc);
>> +    texture_desc.Usage = D3D11_USAGE_STAGING;
>> +    texture_desc.BindFlags = 0;
>> +    texture_desc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
>> +    texture_desc.MiscFlags = 0;
>> +    hr = ID3D11Device_CreateTexture2D(device, &texture_desc, NULL, (ID3D11Texture2D **)&rb_texture);
>> +    ok_(__FILE__, line)(hr == S_OK, "Failed to create texture, hr %#x.\n", hr);
>> +
>> +    ID3D11DeviceContext_CopyResource(context->immediate_context, rb_texture, (ID3D11Resource *)context->rt);
>> +    hr = ID3D11DeviceContext_Map(context->immediate_context, rb_texture, 0, D3D11_MAP_READ, 0, &map_desc);
>> +    ok_(__FILE__, line)(hr == S_OK, "Failed to map texture, hr %#x.\n", hr);
>> +
>> +    ret = *((struct vec4 *)((BYTE *)map_desc.pData + y * map_desc.RowPitch) + x);
>> +
>> +    ID3D11DeviceContext_Unmap(context->immediate_context, rb_texture, 0);
>> +    ID3D11Resource_Release(rb_texture);
>> +
>> +    return ret;
>> +}
> 
> Same point WRT texture readback as the previous patch.
> 
>> +
>> +static void test_sm4_swizzle(void)
>> +{
>> +    static const struct vec4 uniform = {0.0303f, 0.0f, 0.0f, 0.0202f};
>> +    struct d3d11_test_context test_context;
>> +    ID3D10Blob *ps_code;
>> +    ID3D11Buffer *cb;
>> +    struct vec4 v;
>> +
>> +    static const char ps_source[] =
>> +        "uniform float4 color;\n"
>> +        "float4 main() : SV_TARGET\n"
>> +        "{\n"
>> +        "    float4 ret = color;\n"
>> +        "    ret.gb = ret.ra;\n"
>> +        "    ret.ra = float2(0.0101, 0.0404);\n"
>> +        "    return ret;\n"
>> +        "}";
>> +
>> +    if (!init_d3d11_test_context(&test_context))
>> +        return;
>> +
>> +    todo_wine ps_code = compile_shader(ps_source, "ps_4_0");
>> +    if (ps_code)
>> +    {
>> +        cb = create_buffer(test_context.device, D3D11_BIND_CONSTANT_BUFFER, sizeof(uniform), &uniform);
>> +        ID3D11DeviceContext_PSSetConstantBuffers(test_context.immediate_context, 0, 1, &cb);
> 
> More of an open question than anything: is the "global" constant
> buffer always supposed to be at index 0?
> 

I don't think it's documented anywhere. In practice there seems to be a
stable ordering—$Global, then $Param, then declared cbuffers in order.

For what it's worth, d2d1 (and I guess d3d11 tests in general?) kind of
depend on this, though maybe the logic there is that we ship the
bytecode and therefore already know what the buffer register is...