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Linux: Add hint for disabling deadzones

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This commit is contained in:
Kai Krakow 2020-07-21 23:38:42 +02:00
parent 86517d3eda
commit c3ecf18cc4
2 changed files with 15 additions and 1 deletions
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4
src/joystick/linux/SDL_sysjoystick.c
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@ -38,6 +38,7 @@
#include <linux/joystick.h>
#include "SDL_assert.h"
#include "SDL_hints.h"
#include "SDL_joystick.h"
#include "SDL_endian.h"
#include "SDL_timer.h"
@ -706,6 +707,7 @@ ConfigJoystick(SDL_Joystick * joystick, int fd)
}
if (test_bit(i, absbit)) {
struct input_absinfo absinfo;
SDL_bool hint_used = SDL_GetHintBoolean(SDL_HINT_LINUX_JOYSTICK_DEADZONES, SDL_TRUE);
if (ioctl(fd, EVIOCGABS(i), &absinfo) < 0) {
continue;
@ -721,7 +723,7 @@ ConfigJoystick(SDL_Joystick * joystick, int fd)
if (absinfo.minimum == absinfo.maximum) {
joystick->hwdata->abs_correct[i].used = 0;
} else {
joystick->hwdata->abs_correct[i].used = 1;
joystick->hwdata->abs_correct[i].used = hint_used;
joystick->hwdata->abs_correct[i].coef[0] =
(absinfo.maximum + absinfo.minimum) - 2 * absinfo.flat;
joystick->hwdata->abs_correct[i].coef[1] =