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Code Issues Releases Wiki Activity

analogue stick fix for raspberry pi (#463)

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* Calibrate analogue gamepad sticks on rpi

* Allow overriding analogue stick centre on rpi

---------

Co-authored-by: twojstaryzdomu <twojstaryzdomu@github.com>
This commit is contained in:
twojstaryzdomu
2024-03-02 03:16:31 +01:00
committed by GitHub
parent 888e26f82a
commit 05361d3d37
1 changed files with 8 additions and 1 deletions
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9
src/platform/rpi/main.cpp
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@@ -197,6 +197,7 @@ int inputDevices[MAX_INPUT_DEVICES];
udev *udevObj; udev *udevObj;
udev_monitor *udevMon; udev_monitor *udevMon;
int udevMon_fd; int udevMon_fd;
int joy_centre;
vec2 joyL, joyR; vec2 joyL, joyR;
@@ -347,6 +348,10 @@ bool inputInit() {
} }
udev_enumerate_unref(e); udev_enumerate_unref(e);
const char *temp = getenv("JOY_CENTRE");
if (temp && (joy_centre = atoi(temp)))
LOG("input: joy centred at %d\n", joy_centre);
return true; return true;
} }
@@ -359,11 +364,13 @@ void inputFree() {
} }
#define JOY_DEAD_ZONE_STICK 8192 #define JOY_DEAD_ZONE_STICK 8192
#define JOY_CENTRE 32768
float joyAxisValue(int value) { float joyAxisValue(int value) {
value -= joy_centre ? joy_centre : JOY_CENTRE;
if (value > -JOY_DEAD_ZONE_STICK && value < JOY_DEAD_ZONE_STICK) if (value > -JOY_DEAD_ZONE_STICK && value < JOY_DEAD_ZONE_STICK)
return 0.0f; return 0.0f;
return value / 32767.0f; return value / 32768.0f;
} }
float joyTrigger(int value) { float joyTrigger(int value) {