Relintai/sdl2_frt
1
0
Fork 0
mirror of https://github.com/Relintai/sdl2_frt.git synced 2024-12-20 22:16:49 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fixed bug 2090 - Some joystick inputs are delayed on FreeBSD

Browse Source 
kikuchan

Some joysticks with high sampling rate need to be read() more fast,
otherwise it delay user inputs due to internal queue.
Especially, an app that issues SDL_PollEvent() not so frequent
This commit is contained in:
Sam Lantinga 2013-09-06 20:54:14 -07:00
parent 10ffa28a28
commit dc9ddf1f61
1 changed files with 80 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/joystick/bsd/SDL_sysjoystick.c
View File

@ -446,9 +446,7 @@ SDL_SYS_JoystickUpdate(SDL_Joystick * joy)
static int x, y, xmin = 0xffff, ymin = 0xffff, xmax = 0, ymax = 0; static int x, y, xmin = 0xffff, ymin = 0xffff, xmax = 0, ymax = 0;
if (joy->hwdata->type == BSDJOY_JOY) { if (joy->hwdata->type == BSDJOY_JOY) {
if (read(joy->hwdata->fd, &gameport, sizeof gameport) != while (read(joy->hwdata->fd, &gameport, sizeof gameport) == sizeof gameport) {
sizeof gameport)
return;
if (abs(x - gameport.x) > 8) { if (abs(x - gameport.x) > 8) {
x = gameport.x; x = gameport.x;
if (x < xmin) { if (x < xmin) {
@ -489,23 +487,22 @@ SDL_SYS_JoystickUpdate(SDL_Joystick * joy)
if (gameport.b2 != joy->buttons[1]) { if (gameport.b2 != joy->buttons[1]) {
SDL_PrivateJoystickButton(joy, 1, gameport.b2); SDL_PrivateJoystickButton(joy, 1, gameport.b2);
} }
}
return; return;
} }
#endif /* defined(__FREEBSD__) || SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H */ #endif /* defined(__FREEBSD__) || SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H */
rep = &joy->hwdata->inreport; rep = &joy->hwdata->inreport;
if (read(joy->hwdata->fd, REP_BUF_DATA(rep), rep->size) != rep->size) { while (read(joy->hwdata->fd, REP_BUF_DATA(rep), rep->size) == rep->size) {
return;
}
#if defined(USBHID_NEW) || (defined(__FREEBSD__) && __FreeBSD_kernel_version >= 500111) || defined(__FreeBSD_kernel__) #if defined(USBHID_NEW) || (defined(__FREEBSD__) && __FreeBSD_kernel_version >= 500111) || defined(__FreeBSD_kernel__)
hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input, rep->rid); hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input, rep->rid);
#else #else
hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input); hdata = hid_start_parse(joy->hwdata->repdesc, 1 << hid_input);
#endif #endif
if (hdata == NULL) { if (hdata == NULL) {
fprintf(stderr, "%s: Cannot start HID parser\n", joy->hwdata->path); /*fprintf(stderr, "%s: Cannot start HID parser\n", joy->hwdata->path);*/
return; continue;
} }
for (nbutton = 0; hid_get_item(hdata, &hitem) > 0;) { for (nbutton = 0; hid_get_item(hdata, &hitem) > 0;) {
@ -552,8 +549,7 @@ SDL_SYS_JoystickUpdate(SDL_Joystick * joy)
} }
} }
hid_end_parse(hdata); hid_end_parse(hdata);
}
return;
} }
/* Function to close a joystick after use */ /* Function to close a joystick after use */