[PATCH] xinput: Don't look for IG_ substring when searching for gamepads.

[Piotr Caban]

Only some gamepads have "IG_" substring in DevicePath on Windows.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47209
Signed-off-by: Piotr Caban 
---
  dlls/xinput1_3/hid.c | 4 ----
  1 file changed, 4 deletions(-)

[Andrew Eikum]

On Thu, May 16, 2019 at 02:19:12PM +0200, Piotr Caban wrote:
> Only some gamepads have "IG_" substring in DevicePath on Windows.

This might cause some games to show duplicate controllers. According
to Microsoft, the correct way to detect when a dinput device also has
an xinput device is to search for the IG_ substring. So if we create
xinput devices for hardware that /doesn't/ have the IG_ string, the
game will also show the dinput device.

https://docs.microsoft.com/en-us/windows/desktop/xinput/xinput-and-directinp...

Andrew
> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47209
> Signed-off-by: Piotr Caban
>
> dlls/xinput1_3/hid.c | 4 ----
>  1 file changed, 4 deletions(-)
> diff --git a/dlls/xinput1_3/hid.c b/dlls/xinput1_3/hid.c
> index 34e4e51285..1912a10a39 100644
> --- a/dlls/xinput1_3/hid.c
> +++ b/dlls/xinput1_3/hid.c
> @@ -233,14 +233,10 @@ void HID_find_gamepads(xinput_controller *devices)
>      while (SetupDiEnumDeviceInterfaces(device_info_set, NULL, &hid_guid, idx++,
>             &interface_data) && didx < XUSER_MAX_COUNT)
>      {
> -
>    static const WCHAR ig[] = {'I','G','_',0};
>    if (!SetupDiGetDeviceInterfaceDetailW(device_info_set,
>            &interface_data, data, sizeof(*data) + detail_size, NULL, NULL))
>        continue;
>
> -
>    if (!strstrW(data->DevicePath, ig))
> -
>        continue;
> -
>    for (i = 0; i < XUSER_MAX_COUNT; i++)
>    {
>        struct hid_platform_private *private = devices[i].platform_private;
>

[Piotr Caban]

Hi Andrew,

Thanks for pointing it out. I will prepare a different patch.

Thanks,
Piotr

On 5/16/19 2:24 PM, Andrew Eikum wrote:
> On Thu, May 16, 2019 at 02:19:12PM +0200, Piotr Caban wrote:
> > Only some gamepads have "IG_" substring in DevicePath on Windows.
>
> This might cause some games to show duplicate controllers. According
> to Microsoft, the correct way to detect when a dinput device also has
> an xinput device is to search for the IG_ substring. So if we create
> xinput devices for hardware that /doesn't/ have the IG_ string, the
> game will also show the dinput device.
>  https://docs.microsoft.com/en-us/windows/desktop/xinput/xinput-and-directinput
>
> Andrew
> > Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=47209
> > Signed-off-by: Piotr Caban
> >
> > dlls/xinput1_3/hid.c | 4 ----
> >   1 file changed, 4 deletions(-)
> > diff --git a/dlls/xinput1_3/hid.c b/dlls/xinput1_3/hid.c
> > index 34e4e51285..1912a10a39 100644
> > --- a/dlls/xinput1_3/hid.c
> > +++ b/dlls/xinput1_3/hid.c
> > @@ -233,14 +233,10 @@ void HID_find_gamepads(xinput_controller *devices)
> >       while (SetupDiEnumDeviceInterfaces(device_info_set, NULL, &hid_guid, idx++,
> >              &interface_data) && didx < XUSER_MAX_COUNT)
> >       {
> > -
> >    static const WCHAR ig[] = {'I','G','_',0};
> >     if (!SetupDiGetDeviceInterfaceDetailW(device_info_set,
> >             &interface_data, data, sizeof(*data) + detail_size, NULL, NULL))
> >         continue;
> >
> > -
> >    if (!strstrW(data->DevicePath, ig))
> > -
> >        continue;
> > -
> >     for (i = 0; i < XUSER_MAX_COUNT; i++)
> >     {
> >         struct hid_platform_private *private = devices[i].platform_private;
> >