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Fixed bug 4286 - Joystick subsystem causes "not responding" when app is in the background

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Added a hint to control whether a separate thread should be used for joystick events.
This is off by default because dispatching messages in other threads appears to cause problems on some versions of Windows.
This commit is contained in:
Sam Lantinga 2020-12-12 22:08:02 -08:00
parent bca9decbda
commit 13a4caf1d7
3 changed files with 86 additions and 31 deletions
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11
include/SDL_hints.h
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@ -708,6 +708,17 @@ extern "C" {
*/
#define SDL_HINT_JOYSTICK_RAWINPUT "SDL_JOYSTICK_RAWINPUT"
/**
* \brief A variable controlling whether a separate thread should be used
* for handling joystick detection and raw input messages on Windows
*
* This variable can be set to the following values:
* "0" - A separate thread is not used (the default)
* "1" - A separate thread is used for handling raw input messages
*
*/
#define SDL_HINT_JOYSTICK_THREAD "SDL_JOYSTICK_THREAD"
/**
* \brief A variable controlling whether Linux joysticks adhere their HID-defined deadzones or return unfiltered values.
* This is useful for Wine which implements its own deadzone handler if requested by games, also it enables xinput