[PATCH 4/5] d3d11: Implement d3d11_immediate_context_RSGetViewports().

[Henri Verbeet]

On 13 November 2015 at 02:23, Józef Kucia <jkucia at codeweavers.com> wrote:
> @@ -1516,7 +1516,30 @@ static void STDMETHODCALLTYPE d3d11_immediate_context_RSGetState(ID3D11DeviceCon
>  static void STDMETHODCALLTYPE d3d11_immediate_context_RSGetViewports(ID3D11DeviceContext *iface,
>          UINT *viewport_count, D3D11_VIEWPORT *viewports)
>  {
> -    FIXME("iface %p, viewport_count %p, viewports %p stub!\n", iface, viewport_count, viewports);
> +    struct d3d_device *device = device_from_immediate_ID3D11DeviceContext(iface);
> +    struct wined3d_viewport wined3d_vp;
> +
> +    TRACE("iface %p, viewport_count %p, viewports %p.\n", iface, viewport_count, viewports);
> +
> +    if (!viewports)
> +    {
> +        *viewport_count = 1;
> +        return;
> +    }
> +
> +    wined3d_mutex_lock();
> +    wined3d_device_get_viewport(device->wined3d_device, &wined3d_vp);
> +    wined3d_mutex_unlock();
> +
> +    viewports[0].TopLeftX = wined3d_vp.x;
> +    viewports[0].TopLeftY = wined3d_vp.y;
> +    viewports[0].Width = wined3d_vp.width;
> +    viewports[0].Height = wined3d_vp.height;
> +    viewports[0].MinDepth = wined3d_vp.min_z;
> +    viewports[0].MaxDepth = wined3d_vp.max_z;
> +
> +    if (*viewport_count > 1)
> +        memset(&viewports[1], 0, (*viewport_count - 1) * sizeof(*viewports));
>  }
>
Are you sure this is correct? (I.e., that calling the function with an
invalid viewports pointer and 0 *viewport_count should crash.)