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Wait for the GCController framework to see IOKit devices 

It occasionally takes a few millseconds for the GCController framework to handle the device notification and set up the device

Fixes the duplicate controller issue in https://github.com/libsdl-org/SDL/issues/6686
This commit is contained in:
Sam Lantinga 2023-03-09 16:10:04 -08:00
parent 21e444b2e7
commit 645823fc90
1 changed files with 6 additions and 23 deletions
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25
src/joystick/apple/SDL_mfijoystick.m
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@ -1667,31 +1667,14 @@ static SDL_bool IOS_JoystickGetGamepadMapping(int device_index, SDL_GamepadMappi
SDL_bool IOS_SupportedHIDDevice(IOHIDDeviceRef device)
{
if (@available(macOS 10.16, *)) {
const int MAX_ATTEMPTS = 3;
for (int attempt = 0; attempt < MAX_ATTEMPTS; ++attempt) {
if ([GCController supportsHIDDevice:device]) {
return SDL_TRUE;
}
/* GCController supportsHIDDevice may return false if the device hasn't been
* seen by the framework yet, so check a few controllers we know are supported.
*/
{
Sint32 vendor = 0;
Sint32 product = 0;
CFTypeRef refCF = NULL;
refCF = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDVendorIDKey));
if (refCF) {
CFNumberGetValue(refCF, kCFNumberSInt32Type, &vendor);
}
refCF = IOHIDDeviceGetProperty(device, CFSTR(kIOHIDProductIDKey));
if (refCF) {
CFNumberGetValue(refCF, kCFNumberSInt32Type, &product);
}
if (vendor == USB_VENDOR_MICROSOFT && SDL_IsJoystickXboxSeriesX(vendor, product)) {
return SDL_TRUE;
}
/* The framework may not have seen the device yet */
SDL_Delay(10);
}
}
return SDL_FALSE;