mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2025-10-05 09:26:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fixed bug 4898 - No rumble because of integer overflow in SDL_JoystickRumble

Browse Source 
meyraud705

On a Dualshock 4 controller using hidapi driver, calling SDL_JoystickRumble with a duration too long (SDL_HAPTIC_INFINITY for example) causes the rumble to stop immediately.

This happens because of integer overflow on line 301 of SDL_hidapi_ps4.c
(https://hg.libsdl.org/SDL/file/a3077169ad23/src/joystick/hidapi/SDL_hidapi_ps4.c#l301), which sets expiration time in the past.
This commit is contained in:
Sam Lantinga
2019-12-16 10:20:03 -08:00
parent 4d4e5584ea
commit a7ae9175c3
4 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/joystick/hidapi/SDL_hidapi_ps4.c
View File

@@ -298,7 +298,7 @@ HIDAPI_DriverPS4_Rumble(SDL_Joystick *joystick, hid_device *dev, void *context,
}
if ((low_frequency_rumble || high_frequency_rumble) && duration_ms) {
ctx->rumble_expiration = SDL_GetTicks() + duration_ms;
ctx->rumble_expiration = SDL_GetTicks() + SDL_min(duration_ms, SDL_MAX_RUMBLE_DURATION_MS);
} else {
ctx->rumble_expiration = 0;
}