This is the explanation for the d3d11 patch I submitted to wine-patches.

Stefan said Henri might have an interest so I should post the explanation here

Comments are welcome :)

---------- Forwarded message ----------
From: Martell Malone <martellmalone@gmail.com>
Date: Mon, Feb 2, 2015 at 7:12 PM
Subject: Re: Add d3d11_CreateDeviceAndSwapChain
To: Stefan Dösinger <stefandoesinger@gmail.com>

Whoops that sent without my comments

In the d3d code we use use 8 byte extran indentation for continued lines:

void function()
{
<4> FIXME("bla long text bla\n",
<4> <8> param1, param2);
}

I have sent an updated patch to reflect this.

I'm curious, does this improve the behavior of some application? E.g. game X now falls back to d3d9 without crashing due to the stub?

My main focus for writing this was for the mingw-w64 project that imports the headers and libs from wine.

We were just casually missing 1 of the 3 most important functions so I sent in this patch :)

There are 2 ways to create a device and swapchain however. You can do them seperatly or this function does them both at once.

I assume that this returns the correct error like CreateDevice so that if the application has a fallback it can use it.

So thats highly possible.

Kind Regards

Martell

On Mon, Feb 2, 2015 at 7:06 PM, Martell Malone <martellmalone@gmail.com> wrote:

Hi Stefan,

On Mon, Feb 2, 2015 at 6:33 PM, Stefan Dösinger <stefandoesinger@gmail.com> wrote:
Hi,

I'm curious, does this improve the behavior of some application? E.g. game X now falls back to d3d9 without crashing due to the stub?

> +HRESULT WINAPI D3D11CreateDeviceAndSwapChain(IDXGIAdapter *adapter, D3D_DRIVER_TYPE driver, HMODULE swrast, UINT flags,
> + const D3D_FEATURE_LEVEL *feature_levels, UINT levels, UINT sdk_version,
> + const DXGI_SWAP_CHAIN_DESC *swapchain_desc, IDXGISwapChain ** swapchain,
> + ID3D11Device **device, D3D_FEATURE_LEVEL *feature_level, ID3D11DeviceContext **context)
> +{
> + FIXME("stub: adapter %p, driver_type %s, swrast %p, flags %#x, feature_levels %p, levels %#x, sdk_version %d, "
> + "swapchain_desc %p, swapchain %p, device %p, feature_level %p, context %p\n", adapter, debug_d3d_driver_type(driver_type), swrast,
> + flags, feature_levels, levels, sdk_version, swapchain_desc, swapchain, device, feature_level, context);
> + return E_OUTOFMEMORY;
sdk_version is an UINT, you need to print it with %u.

In the d3d code we use use 8 byte extran indentation for continued lines:

void function()
{
<4> FIXME("bla long text bla\n",
<4> <8> param1, param2);
}

Cheers,
Stefan