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simplify OpenBSD D-pad calculation with bitwise operation (#7996)

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rfht
2023-07-17 20:01:23 -06:00
committed by GitHub
parent 4a18893c73
commit 4d63c919f9
1 changed files with 18 additions and 37 deletions
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55
src/joystick/bsd/SDL_bsdjoystick.c
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@@ -92,40 +92,11 @@
#define HUG_DPAD_RIGHT 0x92
#define HUG_DPAD_LEFT 0x93
#define HAT_CENTERED 0x00
#define HAT_UP 0x01
#define HAT_RIGHT 0x02
#define HAT_DOWN 0x04
#define HAT_LEFT 0x08
#define HAT_RIGHTUP (HAT_RIGHT | HAT_UP)
#define HAT_RIGHTDOWN (HAT_RIGHT | HAT_DOWN)
#define HAT_LEFTUP (HAT_LEFT | HAT_UP)
#define HAT_LEFTDOWN (HAT_LEFT | HAT_DOWN)
/* calculate the value from the state of the dpad */
int dpad_to_sdl(Sint32 *dpad)
{
if (dpad[2]) {
if (dpad[0])
return HAT_RIGHTUP;
else if (dpad[1])
return HAT_RIGHTDOWN;
else
return HAT_RIGHT;
} else if (dpad[3]) {
if (dpad[0])
return HAT_LEFTUP;
else if (dpad[1])
return HAT_LEFTDOWN;
else
return HAT_LEFT;
} else if (dpad[0]) {
return HAT_UP;
} else if (dpad[1]) {
return HAT_DOWN;
}
return HAT_CENTERED;
}
#endif
struct report
@@ -719,19 +690,29 @@ static void BSD_JoystickUpdate(SDL_Joystick *joy)
hitem.logical_minimum);
}
#ifdef __OpenBSD__
else if (usage == HUG_DPAD_UP) {
/* here D-pad directions are reported like separate buttons.
* calculate the SDL hat value from the 4 separate values.
*/
switch (usage) {
case HUG_DPAD_UP:
dpad[0] = (Sint32)hid_get_data(REP_BUF_DATA(rep), &hitem);
SDL_SendJoystickHat(timestamp, joy, 0, dpad_to_sdl(dpad));
} else if (usage == HUG_DPAD_DOWN) {
break;
case HUG_DPAD_DOWN:
dpad[1] = (Sint32)hid_get_data(REP_BUF_DATA(rep), &hitem);
SDL_SendJoystickHat(timestamp, joy, 0, dpad_to_sdl(dpad));
} else if (usage == HUG_DPAD_RIGHT) {
break;
case HUG_DPAD_RIGHT:
dpad[2] = (Sint32)hid_get_data(REP_BUF_DATA(rep), &hitem);
SDL_SendJoystickHat(timestamp, joy, 0, dpad_to_sdl(dpad));
} else if (usage == HUG_DPAD_LEFT) {
break;
case HUG_DPAD_LEFT:
dpad[3] = (Sint32)hid_get_data(REP_BUF_DATA(rep), &hitem);
SDL_SendJoystickHat(timestamp, joy, 0, dpad_to_sdl(dpad));
break;
//default:
// no-op
}
SDL_PrivateJoystickHat(joy, 0, (dpad[0] * HAT_UP) |
(dpad[1] * HAT_DOWN) |
(dpad[2] * HAT_RIGHT) |
(dpad[3] * HAT_LEFT) );
#endif
break;
}