[PATCH v2] xinput: Avoid calling XInputGetStateEx() in XInputGetState().

[Aric Stewart]

Signed-off-by: Aric Stewart <aric at codeweavers.com>

On 11/18/18 1:15 PM, Zebediah Figura wrote:
> Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=46142
> Signed-off-by: Zebediah Figura <z.figura12 at gmail.com>
> ---
>   dlls/xinput1_3/xinput_main.c | 32 ++++++++++++++++++++------------
>   1 file changed, 20 insertions(+), 12 deletions(-)
> 
> diff --git a/dlls/xinput1_3/xinput_main.c b/dlls/xinput1_3/xinput_main.c
> index 56bb36a05d..f6e3e15568 100644
> --- a/dlls/xinput1_3/xinput_main.c
> +++ b/dlls/xinput1_3/xinput_main.c
> @@ -85,13 +85,31 @@ DWORD WINAPI XInputSetState(DWORD index, XINPUT_VIBRATION* vibration)
>       return HID_set_state(&controllers[index], vibration);
>   }
>   
> +/* Some versions of SteamOverlayRenderer hot-patch XInputGetStateEx() and call
> + * XInputGetState() in the hook, so we need a wrapper. */
> +static DWORD xinput_get_state(DWORD index, XINPUT_STATE *state)
> +{
> +    HID_find_gamepads(controllers);
> +
> +    if (index >= XUSER_MAX_COUNT)
> +        return ERROR_BAD_ARGUMENTS;
> +    if (!controllers[index].connected)
> +        return ERROR_DEVICE_NOT_CONNECTED;
> +
> +    HID_update_state(&controllers[index]);
> +    memcpy(state, &controllers[index].state, sizeof(XINPUT_STATE));
> +
> +    return ERROR_SUCCESS;
> +}
> +
> +
>   DWORD WINAPI DECLSPEC_HOTPATCH XInputGetState(DWORD index, XINPUT_STATE* state)
>   {
>       DWORD ret;
>   
>       TRACE("(index %u, state %p)!\n", index, state);
>   
> -    ret = XInputGetStateEx(index, state);
> +    ret = xinput_get_state(index, state);
>       if (ret != ERROR_SUCCESS)
>           return ret;
>   
> @@ -105,17 +123,7 @@ DWORD WINAPI DECLSPEC_HOTPATCH XInputGetStateEx(DWORD index, XINPUT_STATE* state
>   {
>       TRACE("(index %u, state %p)!\n", index, state);
>   
> -    HID_find_gamepads(controllers);
> -
> -    if (index >= XUSER_MAX_COUNT)
> -        return ERROR_BAD_ARGUMENTS;
> -    if (!controllers[index].connected)
> -        return ERROR_DEVICE_NOT_CONNECTED;
> -
> -    HID_update_state(&controllers[index]);
> -    memcpy(state, &controllers[index].state, sizeof(XINPUT_STATE));
> -
> -    return ERROR_SUCCESS;
> +    return xinput_get_state(index, state);
>   }
>   
>   DWORD WINAPI XInputGetKeystroke(DWORD index, DWORD reserved, PXINPUT_KEYSTROKE keystroke)
>