4 * Joystick handling code
6 * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
7 * Written by Steve Baker, <sjbaker1@airmail.net>
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
23 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * FreeBSD port by Stephen Montgomery-Smith <stephen@math.missouri.edu>
30 * Redone by John Fay 2/4/04 with another look from the PLIB "js" library.
31 * Many thanks for Steve Baker for permission to pull from that library.
34 #include <GL/freeglut.h>
35 #include "freeglut_internal.h"
37 # include <sys/param.h>
41 * Initial defines from "js.h" starting around line 33 with the existing "freeglut_joystick.c"
45 /* XXX It might be better to poll the operating system for the numbers of buttons and
46 * XXX axes and then dynamically allocate the arrays.
48 #define _JS_MAX_BUTTONS 32
50 #if TARGET_HOST_MACINTOSH
51 # define _JS_MAX_AXES 9
52 # include <InputSprocket.h>
55 #if TARGET_HOST_MAC_OSX
56 # define _JS_MAX_AXES 16
57 # include <mach/mach.h>
58 # include <IOKit/IOkitLib.h>
59 # include <IOKit/hid/IOHIDLib.h>
63 # define _JS_MAX_AXES 8
65 # include <mmsystem.h>
70 #if TARGET_HOST_UNIX_X11
71 # define _JS_MAX_AXES 16
73 # include <sys/ioctl.h>
79 # if defined(__FreeBSD__) || defined(__NetBSD__)
80 /* XXX The below hack is done until freeglut's autoconf is updated. */
81 # define HAVE_USB_JS 1
83 # if defined(__FreeBSD__)
84 # include <sys/joystick.h>
87 * XXX NetBSD/amd64 systems may find that they have to steal the
88 * XXX /usr/include/machine/joystick.h from a NetBSD/i386 system.
89 * XXX I cannot comment whether that works for the interface, but
90 * XXX it lets you compile...(^& I do not think that we can do away
91 * XXX with this header.
93 # include <machine/joystick.h> /* For analog joysticks */
95 # define JS_DATA_TYPE joystick
96 # define JS_RETURN (sizeof(struct JS_DATA_TYPE))
99 # if defined(__linux__)
100 # include <linux/joystick.h>
102 /* check the joystick driver version */
103 # if defined(JS_VERSION) && JS_VERSION >= 0x010000
106 # else /* Not BSD or Linux */
110 * We'll put these values in and that should
111 * allow the code to at least compile when there is
112 * no support. The JS open routine should error out
113 * and shut off all the code downstream anyway and if
114 * the application doesn't use a joystick we'll be fine.
124 # define JS_RETURN (sizeof(struct JS_DATA_TYPE))
132 /* BSD defines from "jsBSD.cxx" around lines 42-270 */
134 #if defined(__NetBSD__) || defined(__FreeBSD__)
137 # if defined(__NetBSD__)
138 /* XXX The below hack is done until freeglut's autoconf is updated. */
139 # define HAVE_USBHID_H 1
140 # ifdef HAVE_USBHID_H
145 # elif defined(__FreeBSD__)
146 # if __FreeBSD_version < 500000
147 # include <libusbhid.h>
149 /* XXX The below hack is done until freeglut's autoconf is updated. */
150 # define HAVE_USBHID_H 1
154 # include <dev/usb/usb.h>
155 # include <dev/usb/usbhid.h>
157 /* Compatibility with older usb.h revisions */
158 # if !defined(USB_MAX_DEVNAMES) && defined(MAXDEVNAMES)
159 # define USB_MAX_DEVNAMES MAXDEVNAMES
163 static int hatmap_x[9] = { 0, 0, 1, 1, 1, 0, -1, -1, -1 };
164 static int hatmap_y[9] = { 0, 1, 1, 0, -1, -1, -1, 0, 1 };
165 struct os_specific_s {
169 /* The following structure members are specific to analog joysticks */
172 /* The following structure members are specific to USB joysticks */
173 struct hid_item *hids;
177 int axes_usage [ _JS_MAX_AXES ];
179 /* We keep button and axes state ourselves, as they might not be updated
180 * on every read of a USB device
183 float cache_axes [ _JS_MAX_AXES ];
186 /* Idents lower than USB_IDENT_OFFSET are for analog joysticks. */
187 # define USB_IDENT_OFFSET 2
189 # define USBDEV "/dev/usb"
190 # define UHIDDEV "/dev/uhid"
191 # define AJSDEV "/dev/joy"
195 * fghJoystickFindUSBdev (and its helper, fghJoystickWalkUSBdev) try to locate
196 * the full name of a USB device. If /dev/usbN isn't readable, we punt and
197 * return the uhidN device name. We warn the user of this situation once.
199 static char *fghJoystickWalkUSBdev(int f, char *dev, char *out, int outlen)
201 struct usb_device_info di;
205 for (a = 1; a < USB_MAX_DEVICES; a++) {
207 if (ioctl(f, USB_DEVICEINFO, &di) != 0)
209 for (i = 0; i < USB_MAX_DEVNAMES; i++)
210 if (di.udi_devnames[i][0] &&
211 strcmp(di.udi_devnames[i], dev) == 0) {
212 cp = calloc( 1, strlen(di.udi_vendor) + strlen(di.udi_product) + 2);
213 strcpy(cp, di.udi_vendor);
215 strcat(cp, di.udi_product);
216 strncpy(out, cp, outlen - 1);
225 static int fghJoystickFindUSBdev(char *name, char *out, int outlen)
230 static int protection_warned = 0;
232 for (i = 0; i < 16; i++) {
233 sprintf(buf, "%s%d", USBDEV, i);
234 f = open(buf, O_RDONLY);
236 cp = fghJoystickWalkUSBdev(f, name, out, outlen);
240 } else if (errno == EACCES) {
241 if (!protection_warned) {
242 fgWarning ( "Can't open %s for read!", buf );
243 protection_warned = 1;
250 static int fghJoystickInitializeHID(struct os_specific_s *os,
251 int *num_axes, int *num_buttons)
253 int size, is_joystick;
254 # ifdef HAVE_USBHID_H
261 if ( ( rd = hid_get_report_desc( os->fd ) ) == 0 )
263 fgWarning ( "error: %s: %s", os->fname, strerror( errno ) );
269 # ifdef HAVE_USBHID_H
270 if( ioctl( os->fd, USB_GET_REPORT_ID, &report_id ) < 0)
272 /*** XXX {report_id} may not be the right variable? ***/
273 fgWarning ( "error: %s%d: %s", UHIDDEV, report_id, strerror( errno ) );
277 size = hid_report_size( rd, hid_input, report_id );
279 size = hid_report_size( rd, 0, hid_input );
281 os->hid_data_buf = calloc( 1, size );
285 # ifdef HAVE_USBHID_H
286 d = hid_start_parse( rd, 1 << hid_input, report_id );
288 d = hid_start_parse( rd, 1 << hid_input );
290 while( hid_get_item( d, &h ) )
292 int usage, page, interesting_hid;
294 page = HID_PAGE( h.usage );
295 usage = HID_USAGE( h.usage );
297 /* This test is somewhat too simplistic, but this is how MicroSoft
298 * does, so I guess it works for all joysticks/game pads. */
299 is_joystick = is_joystick ||
300 ( h.kind == hid_collection &&
301 page == HUP_GENERIC_DESKTOP &&
302 ( usage == HUG_JOYSTICK || usage == HUG_GAME_PAD ) );
304 if( h.kind != hid_input )
310 interesting_hid = TRUE;
311 if( page == HUP_GENERIC_DESKTOP )
322 if( *num_axes < _JS_MAX_AXES )
324 os->axes_usage[ *num_axes ] = usage;
329 /* Allocate two axes for a hat */
330 if( *num_axes + 1 < _JS_MAX_AXES )
332 os->axes_usage[ *num_axes ] = usage;
334 os->axes_usage[ *num_axes ] = usage;
339 interesting_hid = FALSE;
343 else if( page == HUP_BUTTON )
345 interesting_hid = ( usage > 0 ) &&
346 ( usage <= _JS_MAX_BUTTONS );
348 if( interesting_hid && usage - 1 > *num_buttons )
349 *num_buttons = usage - 1;
352 if( interesting_hid )
355 os->hids = calloc( 1, sizeof ( struct hid_item ) );
361 return os->hids != NULL;
367 * Definition of "SFG_Joystick" structure -- based on JS's "jsJoystick" object class.
368 * See "js.h" lines 80-178.
370 typedef struct tagSFG_Joystick SFG_Joystick;
371 struct tagSFG_Joystick
373 #if TARGET_HOST_MACINTOSH
374 #define ISP_NUM_AXIS 9
375 #define ISP_NUM_NEEDS 41
376 ISpElementReference isp_elem [ ISP_NUM_NEEDS ];
377 ISpNeed isp_needs [ ISP_NUM_NEEDS ];
380 #if TARGET_HOST_MAC_OSX
381 IOHIDDeviceInterface ** hidDev;
382 IOHIDElementCookie buttonCookies[41];
383 IOHIDElementCookie axisCookies[_JS_MAX_AXES];
384 long minReport[_JS_MAX_AXES],
385 maxReport[_JS_MAX_AXES];
388 #if TARGET_HOST_WIN32
395 #if TARGET_HOST_UNIX_X11
396 # if defined(__FreeBSD__) || defined(__NetBSD__)
397 struct os_specific_s *os;
403 float tmp_axes [ _JS_MAX_AXES ];
405 struct JS_DATA_TYPE js;
418 float dead_band[ _JS_MAX_AXES ];
419 float saturate [ _JS_MAX_AXES ];
420 float center [ _JS_MAX_AXES ];
421 float max [ _JS_MAX_AXES ];
422 float min [ _JS_MAX_AXES ];
426 * Functions associated with the "jsJoystick" class in PLIB
428 #if TARGET_HOST_MAC_OSX
429 #define K_NUM_DEVICES 32
431 io_object_t ioDevices[K_NUM_DEVICES];
433 static void fghJoystickFindDevices ( SFG_Joystick* joy, mach_port_t );
434 static CFDictionaryRef fghJoystickGetCFProperties ( SFG_Joystick* joy, io_object_t );
436 static void fghJoystickEnumerateElements ( SFG_Joystick* joy, CFTypeRef element );
437 /* callback for CFArrayApply */
438 static void fghJoystickElementEnumerator ( SFG_Joystick* joy, void *element, void* vjs );
440 static void fghJoystickAddAxisElement ( SFG_Joystick* joy, CFDictionaryRef axis );
441 static void fghJoystickAddButtonElement ( SFG_Joystick* joy, CFDictionaryRef button );
442 static void fghJoystickAddHatElement ( SFG_Joystick* joy, CFDictionaryRef hat );
447 * The static joystick structure pointer
449 #define MAX_NUM_JOYSTICKS 2
450 static SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];
454 * Read the raw joystick data
456 static void fghJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes )
458 #if TARGET_HOST_WIN32
464 #if defined(__FreeBSD__) || defined(__NetBSD__)
475 for( i = 0; i < joy->num_axes; i++ )
481 #if TARGET_HOST_MACINTOSH
486 for ( i = 0; i < joy->num_buttons; i++ )
489 int err = ISpElement_GetSimpleState ( isp_elem [ i + isp_num_axis ], &state);
492 *buttons |= state << i;
498 for ( i = 0; i < joy->num_axes; i++ )
501 int err = ISpElement_GetSimpleState ( isp_elem [ i ], &state );
504 axes [i] = (float) state;
509 #if TARGET_HOST_MAC_OSX
510 if ( buttons != NULL )
514 for ( i = 0; i < joy->num_buttons; i++ )
516 IOHIDEventStruct hidEvent;
517 (*(joy->hidDev))->getElementValue ( joy->hidDev, buttonCookies[i], &hidEvent );
518 if ( hidEvent.value )
525 for ( i = 0; i < joy->num_axes; i++ )
527 IOHIDEventStruct hidEvent;
528 (*(joy->hidDev))->getElementValue ( joy->hidDev, axisCookies[i], &hidEvent );
529 axes[i] = hidEvent.value;
534 #if TARGET_HOST_WIN32
535 status = joyGetPosEx( joy->js_id, &joy->js );
537 if ( status != JOYERR_NOERROR )
539 joy->error = GL_TRUE;
544 *buttons = joy->js.dwButtons;
549 * WARNING - Fall through case clauses!!
551 switch ( joy->num_axes )
554 /* Generate two POV axes from the POV hat angle.
555 * Low 16 bits of js.dwPOV gives heading (clockwise from ahead) in
556 * hundredths of a degree, or 0xFFFF when idle.
558 if ( ( joy->js.dwPOV & 0xFFFF ) == 0xFFFF )
565 /* This is the contentious bit: how to convert angle to X/Y.
566 * wk: I know of no define for PI that we could use here:
567 * SG_PI would pull in sg, M_PI is undefined for MSVC
568 * But the accuracy of the value of PI is very unimportant at
571 float s = (float) sin ( ( joy->js.dwPOV & 0xFFFF ) * ( 0.01 * 3.1415926535f / 180.0f ) );
572 float c = (float) cos ( ( joy->js.dwPOV & 0xFFFF ) * ( 0.01 * 3.1415926535f / 180.0f ) );
574 /* Convert to coordinates on a square so that North-East
575 * is (1,1) not (.7,.7), etc.
576 * s and c cannot both be zero so we won't divide by zero.
578 if ( fabs ( s ) < fabs ( c ) )
580 axes [ 6 ] = ( c < 0.0 ) ? -s/c : s/c ;
581 axes [ 7 ] = ( c < 0.0 ) ? -1.0f : 1.0f;
585 axes [ 6 ] = ( s < 0.0 ) ? -1.0f : 1.0f;
586 axes [ 7 ] = ( s < 0.0 ) ? -c/s : c/s ;
590 case 6: axes[5] = (float) joy->js.dwVpos;
591 case 5: axes[4] = (float) joy->js.dwUpos;
592 case 4: axes[3] = (float) joy->js.dwRpos;
593 case 3: axes[2] = (float) joy->js.dwZpos;
594 case 2: axes[1] = (float) joy->js.dwYpos;
595 case 1: axes[0] = (float) joy->js.dwXpos;
600 #if TARGET_HOST_UNIX_X11
601 # if defined(__FreeBSD__) || defined(__NetBSD__)
602 if ( joy->os->is_analog )
604 int status = read ( joy->os->fd, &joy->os->ajs, sizeof(joy->os->ajs) );
605 if ( status != sizeof(joy->os->ajs) ) {
606 perror ( joy->os->fname );
607 joy->error = GL_TRUE;
610 if ( buttons != NULL )
611 *buttons = ( joy->os->ajs.b1 ? 1 : 0 ) | ( joy->os->ajs.b2 ? 2 : 0 );
615 axes[0] = (float) joy->os->ajs.x;
616 axes[1] = (float) joy->os->ajs.y;
623 while ( ( len = read ( joy->os->fd, joy->os->hid_data_buf, joy->os->hid_dlen ) ) == joy->os->hid_dlen )
627 for ( h = joy->os->hids; h; h = h->next )
629 int d = hid_get_data ( joy->os->hid_data_buf, h );
631 int page = HID_PAGE ( h->usage );
632 int usage = HID_USAGE ( h->usage );
634 if ( page == HUP_GENERIC_DESKTOP )
637 for ( i = 0; i < joy->num_axes; i++ )
638 if (joy->os->axes_usage[i] == usage)
640 if (usage == HUG_HAT_SWITCH)
644 joy->os->cache_axes[i] = (float)hatmap_x[d];
645 joy->os->cache_axes[i + 1] = (float)hatmap_y[d];
649 joy->os->cache_axes[i] = (float)d;
654 else if (page == HUP_BUTTON)
656 if (usage > 0 && usage < _JS_MAX_BUTTONS + 1)
659 joy->os->cache_buttons |= (1 << ( usage - 1 ));
661 joy->os->cache_buttons &= ~(1 << ( usage - 1 ));
666 if ( len < 0 && errno != EAGAIN )
668 perror( joy->os->fname );
671 if ( buttons != NULL ) *buttons = joy->os->cache_buttons;
673 memcpy ( axes, joy->os->cache_axes, sizeof(float) * joy->num_axes );
681 status = read ( joy->fd, &joy->js, sizeof(struct js_event) );
683 if ( status != sizeof( struct js_event ) )
685 if ( errno == EAGAIN )
687 /* Use the old values */
689 *buttons = joy->tmp_buttons;
691 memcpy( axes, joy->tmp_axes,
692 sizeof( float ) * joy->num_axes );
696 fgWarning ( "%s", joy->fname );
697 joy->error = GL_TRUE;
701 switch ( joy->js.type & ~JS_EVENT_INIT )
703 case JS_EVENT_BUTTON:
704 if( joy->js.value == 0 ) /* clear the flag */
705 joy->tmp_buttons &= ~( 1 << joy->js.number );
707 joy->tmp_buttons |= ( 1 << joy->js.number );
711 if ( joy->js.number < joy->num_axes )
713 joy->tmp_axes[ joy->js.number ] = ( float )joy->js.value;
716 memcpy( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
721 fgWarning ( "PLIB_JS: Unrecognised /dev/js return!?!" );
723 /* use the old values */
725 if ( buttons != NULL ) *buttons = joy->tmp_buttons;
727 memcpy ( axes, joy->tmp_axes, sizeof(float) * joy->num_axes );
733 *buttons = joy->tmp_buttons;
737 status = read( joy->fd, &joy->js, JS_RETURN );
739 if ( status != JS_RETURN )
741 fgWarning( "%s", joy->fname );
742 joy->error = GL_TRUE;
747 # if defined( __FreeBSD__ ) || defined( __NetBSD__ )
748 *buttons = ( joy->js.b1 ? 1 : 0 ) | ( joy->js.b2 ? 2 : 0 ); /* XXX Should not be here -- BSD is handled earlier */
750 *buttons = joy->js.buttons;
755 axes[ 0 ] = (float) joy->js.x;
756 axes[ 1 ] = (float) joy->js.y;
763 * Correct the joystick axis data
765 static float fghJoystickFudgeAxis( SFG_Joystick* joy, float value, int axis )
767 if( value < joy->center[ axis ] )
769 float xx = ( value - joy->center[ axis ] ) / ( joy->center[ axis ] -
772 if( xx < -joy->saturate[ axis ] )
775 if( xx > -joy->dead_band [ axis ] )
778 xx = ( xx + joy->dead_band[ axis ] ) / ( joy->saturate[ axis ] -
779 joy->dead_band[ axis ] );
781 return ( xx < -1.0f ) ? -1.0f : xx;
785 float xx = ( value - joy->center [ axis ] ) / ( joy->max[ axis ] -
786 joy->center[ axis ] );
788 if( xx > joy->saturate[ axis ] )
791 if( xx < joy->dead_band[ axis ] )
794 xx = ( xx - joy->dead_band[ axis ] ) / ( joy->saturate[ axis ] -
795 joy->dead_band[ axis ] );
797 return ( xx > 1.0f ) ? 1.0f : xx;
802 * Read the corrected joystick data
804 static void fghJoystickRead( SFG_Joystick* joy, int* buttons, float* axes )
806 float raw_axes[ _JS_MAX_AXES ];
815 for ( i=0; i<joy->num_axes; i++ )
819 fghJoystickRawRead( joy, buttons, raw_axes );
822 for( i=0; i<joy->num_axes; i++ )
823 axes[ i ] = fghJoystickFudgeAxis( joy, raw_axes[ i ], i );
827 * Happy happy happy joy joy joy (happy new year toudi :D)
831 #if TARGET_HOST_MAC_OSX
832 /** open the IOKit connection, enumerate all the HID devices, add their
833 interface references to the static array. We then use the array index
834 as the device number when we come to open() the joystick. */
835 static int fghJoystickFindDevices ( SFG_Joystick *joy, mach_port_t masterPort )
837 CFMutableDictionaryRef hidMatch = NULL;
838 IOReturn rv = kIOReturnSuccess;
840 io_iterator_t hidIterator;
843 /* build a dictionary matching HID devices */
844 hidMatch = IOServiceMatching(kIOHIDDeviceKey);
846 rv = IOServiceGetMatchingServices(masterPort, hidMatch, &hidIterator);
847 if (rv != kIOReturnSuccess || !hidIterator) {
848 fgWarning( "no joystick (HID) devices found" );
853 while ((ioDev = IOIteratorNext(hidIterator))) {
854 /* filter out keyboard and mouse devices */
855 CFDictionaryRef properties = getCFProperties(ioDev);
858 CFTypeRef refPage = CFDictionaryGetValue (properties, CFSTR(kIOHIDPrimaryUsagePageKey));
859 CFTypeRef refUsage = CFDictionaryGetValue (properties, CFSTR(kIOHIDPrimaryUsageKey));
860 CFNumberGetValue((CFNumberRef) refUsage, kCFNumberLongType, &usage);
861 CFNumberGetValue((CFNumberRef) refPage, kCFNumberLongType, &page);
863 /* keep only joystick devices */
864 if ( ( page == kHIDPage_GenericDesktop ) && (
865 (usage == kHIDUsage_GD_Joystick)
866 || (usage == kHIDUsage_GD_GamePad)
867 || (usage == kHIDUsage_GD_MultiAxisController)
868 || (usage == kHIDUsage_GD_Hatswitch) /* last two necessary ? */
869 /* add it to the array */
870 ioDevices[numDevices++] = ioDev;
873 IOObjectRelease(hidIterator);
876 static CFDictionaryRef fghJoystickGetCFProperties ( SFG_Joystick *joy, io_object_t ioDev )
879 CFMutableDictionaryRef cfProperties;
882 /* comment copied from darwin/SDL_sysjoystick.c */
883 /* Mac OS X currently is not mirroring all USB properties to HID page so need to look at USB device page also
884 * get dictionary for usb properties: step up two levels and get CF dictionary for USB properties
887 io_registry_entry_t parent1, parent2;
889 rv = IORegistryEntryGetParentEntry (ioDev, kIOServicePlane, &parent1);
890 if (rv != kIOReturnSuccess) {
891 fgWarning ( "error getting device entry parent");
895 rv = IORegistryEntryGetParentEntry (parent1, kIOServicePlane, &parent2);
896 if (rv != kIOReturnSuccess) {
897 fgWarning ( "error getting device entry parent 2");
902 rv = IORegistryEntryCreateCFProperties( ioDev /*parent2*/,
903 &cfProperties, kCFAllocatorDefault, kNilOptions);
904 if (rv != kIOReturnSuccess || !cfProperties) {
905 fgWarning ( "error getting device properties");
912 static void fghJoystickElementEnumerator ( SFG_Joystick *joy, void *element, void* vjs )
914 if (CFGetTypeID((CFTypeRef) element) != CFDictionaryGetTypeID()) {
915 fgError ( "%s", "element enumerator passed non-dictionary value");
919 static_cast<jsJoystick*>(vjs)->parseElement ( (CFDictionaryRef) element );
922 /** element enumerator function : pass NULL for top-level*/
923 static void fghJoystickEnumerateElements ( SFG_Joystick *joy, CFTypeRef element )
925 FREEGLUT_INTERNAL_ERROR_EXIT( (CFGetTypeID(element) == CFArrayGetTypeID(),
926 "Joystick element type mismatch",
927 "fghJoystickEnumerateElements" );
929 CFRange range = {0, CFArrayGetCount ((CFArrayRef)element)};
930 CFArrayApplyFunction((CFArrayRef) element, range,
931 &fghJoystickElementEnumerator, joy );
934 static void fghJoystickAddAxisElement ( SFG_Joystick *joy, CFDictionaryRef axis )
936 long cookie, lmin, lmax;
937 int index = joy->num_axes++;
939 CFNumberGetValue ((CFNumberRef)
940 CFDictionaryGetValue ( axis, CFSTR(kIOHIDElementCookieKey) ),
941 kCFNumberLongType, &cookie);
943 axisCookies[index] = (IOHIDElementCookie) cookie;
945 CFNumberGetValue ((CFNumberRef)
946 CFDictionaryGetValue ( axis, CFSTR(kIOHIDElementMinKey) ),
947 kCFNumberLongType, &lmin);
949 CFNumberGetValue ((CFNumberRef)
950 CFDictionaryGetValue ( axis, CFSTR(kIOHIDElementMaxKey) ),
951 kCFNumberLongType, &lmax);
953 joy->min[index] = lmin;
954 joy->max[index] = lmax;
955 joy->dead_band[index] = 0.0;
956 joy->saturate[index] = 1.0;
957 joy->center[index] = (lmax + lmin) * 0.5;
960 static void fghJoystickAddButtonElement ( SFG_Joystick *joy, CFDictionaryRef button )
963 CFNumberGetValue ((CFNumberRef)
964 CFDictionaryGetValue ( button, CFSTR(kIOHIDElementCookieKey) ),
965 kCFNumberLongType, &cookie);
967 joy->buttonCookies[num_buttons++] = (IOHIDElementCookie) cookie;
968 /* anything else for buttons? */
971 static void fghJoystickAddHatElement ( SFG_Joystick *joy, CFDictionaryRef button )
973 /* hatCookies[num_hats++] = (IOHIDElementCookie) cookie; */
974 /* do we map hats to axes or buttons? */
978 #if TARGET_HOST_WIN32
980 http://msdn.microsoft.com/archive/en-us/dnargame/html/msdn_sidewind3d.asp
982 # if defined(_MSC_VER)
983 # pragma comment (lib, "advapi32.lib")
986 static int fghJoystickGetOEMProductName ( SFG_Joystick* joy, char *buf, int buf_sz )
999 /* Open .. MediaResources\CurrentJoystickSettings */
1000 sprintf ( buffer, "%s\\%s\\%s",
1001 REGSTR_PATH_JOYCONFIG, joy->jsCaps.szRegKey,
1002 REGSTR_KEY_JOYCURR );
1004 lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey);
1006 if ( lr != ERROR_SUCCESS ) return 0;
1008 /* Get OEM Key name */
1009 dwcb = sizeof(OEMKey);
1011 /* JOYSTICKID1-16 is zero-based; registry entries for VJOYD are 1-based. */
1012 sprintf ( buffer, "Joystick%d%s", joy->js_id + 1, REGSTR_VAL_JOYOEMNAME );
1014 lr = RegQueryValueEx ( hKey, buffer, 0, 0, (LPBYTE) OEMKey, &dwcb);
1015 RegCloseKey ( hKey );
1017 if ( lr != ERROR_SUCCESS ) return 0;
1019 /* Open OEM Key from ...MediaProperties */
1020 sprintf ( buffer, "%s\\%s", REGSTR_PATH_JOYOEM, OEMKey );
1022 lr = RegOpenKeyEx ( HKEY_LOCAL_MACHINE, buffer, 0, KEY_QUERY_VALUE, &hKey );
1024 if ( lr != ERROR_SUCCESS ) return 0;
1029 lr = RegQueryValueEx ( hKey, REGSTR_VAL_JOYOEMNAME, 0, 0, (LPBYTE) buf,
1031 RegCloseKey ( hKey );
1033 if ( lr != ERROR_SUCCESS ) return 0;
1040 static void fghJoystickOpen( SFG_Joystick* joy )
1043 #if TARGET_HOST_MACINTOSH
1046 #if TARGET_HOST_MAC_OSX
1049 IOCFPlugInInterface **plugin;
1051 HRESULT pluginResult;
1053 CFDictionaryRef props;
1054 CFTypeRef topLevelElement;
1056 #if TARGET_HOST_UNIX_X11
1057 # if defined( __FreeBSD__ ) || defined( __NetBSD__ )
1063 # if defined( __linux__ )
1070 * Default values (for no joystick -- each conditional will reset the
1074 joy->num_axes = joy->num_buttons = 0;
1075 joy->name[ 0 ] = '\0';
1077 #if TARGET_HOST_MACINTOSH
1078 /* XXX FIXME: get joystick name in Mac */
1080 err = ISpStartup( );
1084 #define ISP_CHECK_ERR(x) if( x != noErr ) { joy->error = GL_TRUE; return; }
1086 joy->error = GL_TRUE;
1088 /* initialize the needs structure */
1089 ISpNeed temp_isp_needs[ isp_num_needs ] =
1091 { "\pX-Axis", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1092 { "\pY-Axis", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1093 { "\pZ-Axis", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1094 { "\pR-Axis", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1095 { "\pAxis 4", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1096 { "\pAxis 5", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1097 { "\pAxis 6", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1098 { "\pAxis 7", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1099 { "\pAxis 8", 128, 0, 0, kISpElementKind_Axis, kISpElementLabel_None, 0, 0, 0, 0 },
1101 { "\pButton 0", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1102 { "\pButton 1", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1103 { "\pButton 2", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1104 { "\pButton 3", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1105 { "\pButton 4", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1106 { "\pButton 5", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1107 { "\pButton 6", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1108 { "\pButton 7", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1109 { "\pButton 8", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1110 { "\pButton 9", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1111 { "\pButton 10", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1112 { "\pButton 11", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1113 { "\pButton 12", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1114 { "\pButton 13", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1115 { "\pButton 14", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1116 { "\pButton 15", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1117 { "\pButton 16", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1118 { "\pButton 17", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1119 { "\pButton 18", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1120 { "\pButton 19", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1121 { "\pButton 20", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1122 { "\pButton 21", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1123 { "\pButton 22", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1124 { "\pButton 23", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1125 { "\pButton 24", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1126 { "\pButton 25", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1127 { "\pButton 26", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1128 { "\pButton 27", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1129 { "\pButton 28", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1130 { "\pButton 29", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1131 { "\pButton 30", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1132 { "\pButton 31", 128, 0, 0, kISpElementKind_Button, kISpElementLabel_Btn_Select, 0, 0, 0, 0 },
1135 memcpy( joy->isp_needs, temp_isp_needs, sizeof (temp_isp_needs ) );
1138 /* next two calls allow keyboard and mouse to emulate other input
1139 * devices (gamepads, joysticks, etc)
1142 err = ISpDevices_ActivateClass ( kISpDeviceClass_Keyboard );
1146 err = ISpDevices_ActivateClass ( kISpDeviceClass_Mouse );
1150 err = ISpElement_NewVirtualFromNeeds( joy->isp_num_needs,
1151 joy->isp_needs, joy->isp_elem,
1153 ISP_CHECK_ERR( err )
1155 err = ISpInit( joy->isp_num_needs, joy->isp_needs, joy->isp_elem,
1156 'freeglut', nil, 0, 128, 0 );
1157 ISP_CHECK_ERR( err )
1159 joy->num_buttons = joy->isp_num_needs - joy->isp_num_axis;
1160 joy->num_axes = joy->isp_num_axis;
1162 for( i = 0; i < joy->num_axes; i++ )
1164 joy->dead_band[ i ] = 0;
1165 joy->saturate [ i ] = 1;
1166 joy->center [ i ] = kISpAxisMiddle;
1167 joy->max [ i ] = kISpAxisMaximum;
1168 joy->min [ i ] = kISpAxisMinimum;
1171 joy->error = GL_FALSE;
1174 joy->num_buttons = joy->num_axes = 0;
1177 #if TARGET_HOST_MAC_OSX
1178 if( joy->id >= numDevices )
1180 fgWarning( "device index out of range in fgJoystickOpen()" );
1184 /* create device interface */
1185 rv = IOCreatePlugInInterfaceForService( ioDevices[ joy->id ],
1186 kIOHIDDeviceUserClientTypeID,
1187 kIOCFPlugInInterfaceID,
1190 if( rv != kIOReturnSuccess )
1192 fgWarning( "error creating plugin for io device" );
1196 pluginResult = ( *plugin )->QueryInterface(
1198 CFUUIDGetUUIDBytes(kIOHIDDeviceInterfaceID),
1199 &( LPVOID )joy->hidDev
1202 if( pluginResult != S_OK )
1203 fgWarning ( "QI-ing IO plugin to HID Device interface failed" );
1205 ( *plugin )->Release( plugin ); /* don't leak a ref */
1206 if( joy->hidDev == NULL )
1209 /* store the interface in this instance */
1210 rv = ( *( joy->hidDev ) )->open( joy->hidDev, 0 );
1211 if( rv != kIOReturnSuccess )
1213 fgWarning( "error opening device interface");
1217 props = getCFProperties( ioDevices[ joy->id ] );
1219 /* recursively enumerate all the bits */
1220 CFTypeRef topLevelElement =
1221 CFDictionaryGetValue( props, CFSTR( kIOHIDElementKey ) );
1222 enumerateElements( topLevelElement );
1227 #if TARGET_HOST_WIN32
1228 joy->js.dwFlags = JOY_RETURNALL;
1229 joy->js.dwSize = sizeof( joy->js );
1231 memset( &joy->jsCaps, 0, sizeof( joy->jsCaps ) );
1234 ( joyGetDevCaps( joy->js_id, &joy->jsCaps, sizeof( joy->jsCaps ) ) !=
1237 if( joy->jsCaps.wNumAxes == 0 )
1240 joy->error = GL_TRUE;
1244 /* Device name from jsCaps is often "Microsoft PC-joystick driver",
1245 * at least for USB. Try to get the real name from the registry.
1247 if ( ! fghJoystickGetOEMProductName( joy, joy->name,
1248 sizeof( joy->name ) ) )
1250 fgWarning( "JS: Failed to read joystick name from registry" );
1251 strncpy( joy->name, joy->jsCaps.szPname, sizeof( joy->name ) );
1254 /* Windows joystick drivers may provide any combination of
1255 * X,Y,Z,R,U,V,POV - not necessarily the first n of these.
1257 if( joy->jsCaps.wCaps & JOYCAPS_HASPOV )
1259 joy->num_axes = _JS_MAX_AXES;
1260 joy->min[ 7 ] = -1.0; joy->max[ 7 ] = 1.0; /* POV Y */
1261 joy->min[ 6 ] = -1.0; joy->max[ 6 ] = 1.0; /* POV X */
1266 joy->min[ 5 ] = ( float )joy->jsCaps.wVmin;
1267 joy->max[ 5 ] = ( float )joy->jsCaps.wVmax;
1268 joy->min[ 4 ] = ( float )joy->jsCaps.wUmin;
1269 joy->max[ 4 ] = ( float )joy->jsCaps.wUmax;
1270 joy->min[ 3 ] = ( float )joy->jsCaps.wRmin;
1271 joy->max[ 3 ] = ( float )joy->jsCaps.wRmax;
1272 joy->min[ 2 ] = ( float )joy->jsCaps.wZmin;
1273 joy->max[ 2 ] = ( float )joy->jsCaps.wZmax;
1274 joy->min[ 1 ] = ( float )joy->jsCaps.wYmin;
1275 joy->max[ 1 ] = ( float )joy->jsCaps.wYmax;
1276 joy->min[ 0 ] = ( float )joy->jsCaps.wXmin;
1277 joy->max[ 0 ] = ( float )joy->jsCaps.wXmax;
1280 /* Guess all the rest judging on the axes extremals */
1281 for( i = 0; i < joy->num_axes; i++ )
1283 joy->center [ i ] = ( joy->max[ i ] + joy->min[ i ] ) * 0.5f;
1284 joy->dead_band[ i ] = 0.0f;
1285 joy->saturate [ i ] = 1.0f;
1289 #if TARGET_HOST_UNIX_X11
1290 #if defined( __FreeBSD__ ) || defined( __NetBSD__ )
1291 for( i = 0; i < _JS_MAX_AXES; i++ )
1292 joy->os->cache_axes[ i ] = 0.0f;
1294 joy->os->cache_buttons = 0;
1296 joy->os->fd = open( joy->os->fname, O_RDONLY | O_NONBLOCK);
1298 if( joy->os->fd < 0 && errno == EACCES )
1299 fgWarning ( "%s exists but is not readable by you", joy->os->fname );
1301 joy->error =( joy->os->fd < 0 );
1307 joy->num_buttons = 0;
1308 if( joy->os->is_analog )
1311 char joyfname[ 1024 ];
1312 int noargs, in_no_axes;
1314 float axes [ _JS_MAX_AXES ];
1315 int buttons[ _JS_MAX_AXES ];
1318 joy->num_buttons = 32;
1320 fghJoystickRawRead( joy, buttons, axes );
1321 joy->error = axes[ 0 ] < -1000000000.0f;
1325 sprintf( joyfname, "%s/.joy%drc", getenv( "HOME" ), joy->id );
1327 joyfile = fopen( joyfname, "r" );
1328 joy->error =( joyfile == NULL );
1332 noargs = fscanf( joyfile, "%d%f%f%f%f%f%f", &in_no_axes,
1333 &joy->min[ 0 ], &joy->center[ 0 ], &joy->max[ 0 ],
1334 &joy->min[ 1 ], &joy->center[ 1 ], &joy->max[ 1 ] );
1335 joy->error = noargs != 7 || in_no_axes != _JS_MAX_AXES;
1340 for( i = 0; i < _JS_MAX_AXES; i++ )
1342 joy->dead_band[ i ] = 0.0f;
1343 joy->saturate [ i ] = 1.0f;
1346 return; /* End of analog code */
1350 if( ! fghJoystickInitializeHID( joy->os, &joy->num_axes,
1351 &joy->num_buttons ) )
1353 close( joy->os->fd );
1354 joy->error = GL_TRUE;
1358 cp = strrchr( joy->os->fname, '/' );
1361 if( fghJoystickFindUSBdev( &cp[1], joy->name, sizeof( joy->name ) ) ==
1363 strcpy( joy->name, &cp[1] );
1366 if( joy->num_axes > _JS_MAX_AXES )
1367 joy->num_axes = _JS_MAX_AXES;
1369 for( i = 0; i < _JS_MAX_AXES; i++ )
1371 /* We really should get this from the HID, but that data seems
1372 * to be quite unreliable for analog-to-USB converters. Punt for
1375 if( joy->os->axes_usage[ i ] == HUG_HAT_SWITCH )
1377 joy->max [ i ] = 1.0f;
1378 joy->center[ i ] = 0.0f;
1379 joy->min [ i ] = -1.0f;
1383 joy->max [ i ] = 255.0f;
1384 joy->center[ i ] = 127.0f;
1385 joy->min [ i ] = 0.0f;
1388 joy->dead_band[ i ] = 0.0f;
1389 joy->saturate[ i ] = 1.0f;
1394 #if defined( __linux__ )
1395 /* Default for older Linux systems. */
1397 joy->num_buttons = 32;
1400 for( i = 0; i < _JS_MAX_AXES; i++ )
1401 joy->tmp_axes[ i ] = 0.0f;
1403 joy->tmp_buttons = 0;
1406 joy->fd = open( joy->fname, O_RDONLY );
1408 joy->error =( joy->fd < 0 );
1413 /* Set the correct number of axes for the linux driver */
1415 /* Melchior Franz's fixes for big-endian Linuxes since writing
1416 * to the upper byte of an uninitialized word doesn't work.
1419 ioctl( joy->fd, JSIOCGAXES, &u );
1421 ioctl( joy->fd, JSIOCGBUTTONS, &u );
1422 joy->num_buttons = u;
1423 ioctl( joy->fd, JSIOCGNAME( sizeof( joy->name ) ), joy->name );
1424 fcntl( joy->fd, F_SETFL, O_NONBLOCK );
1428 * The Linux driver seems to return 512 for all axes
1429 * when no stick is present - but there is a chance
1430 * that could happen by accident - so it's gotta happen
1431 * on both axes for at least 100 attempts.
1433 * PWO: shouldn't be that done somehow wiser on the kernel level?
1440 fghJoystickRawRead( joy, NULL, joy->center );
1442 } while( !joy->error &&
1444 joy->center[ 0 ] == 512.0f &&
1445 joy->center[ 1 ] == 512.0f );
1447 if ( counter >= 100 )
1448 joy->error = GL_TRUE;
1451 for( i = 0; i < _JS_MAX_AXES; i++ )
1454 joy->max [ i ] = 32767.0f;
1455 joy->center[ i ] = 0.0f;
1456 joy->min [ i ] = -32767.0f;
1458 joy->max[ i ] = joy->center[ i ] * 2.0f;
1459 joy->min[ i ] = 0.0f;
1461 joy->dead_band[ i ] = 0.0f;
1462 joy->saturate [ i ] = 1.0f;
1469 * This function replaces the constructor method in the JS library.
1471 static void fghJoystickInit( int ident )
1473 if( ident >= MAX_NUM_JOYSTICKS )
1474 fgError( "Too large a joystick number: %d", ident );
1476 if( fgJoystick[ ident ] )
1477 fgError( "illegal attempt to initialize joystick device again" );
1479 fgJoystick[ ident ] =
1480 ( SFG_Joystick * )calloc( sizeof( SFG_Joystick ), 1 );
1483 fgJoystick[ ident ]->num_axes = fgJoystick[ ident ]->num_buttons = 0;
1484 fgJoystick[ ident ]->error = GL_TRUE;
1486 #if TARGET_HOST_MACINTOSH
1487 fgJoystick[ ident ]->id = ident;
1488 sprintf( fgJoystick[ ident ]->fname, "/dev/js%d", ident ); /* FIXME */
1489 fgJoystick[ ident ]->error = GL_FALSE;
1492 #if TARGET_HOST_MAC_OSX
1493 fgJoystick[ ident ]->id = ident;
1494 fgJoystick[ ident ]->error = GL_FALSE;
1495 fgJoystick[ ident ]->num_axes = 0;
1496 fgJoystick[ ident ]->num_buttons = 0;
1498 if( numDevices < 0 )
1500 /* do first-time init (since we can't over-ride jsInit, hmm */
1503 mach_port_t masterPort;
1504 IOReturn rv = IOMasterPort( bootstrap_port, &masterPort );
1505 if( rv != kIOReturnSuccess )
1507 fgWarning( "error getting master Mach port" );
1510 fghJoystickFindDevices( masterPort );
1513 if ( ident >= numDevices )
1515 fgJoystick[ ident ]->error = GL_TRUE;
1519 /* get the name now too */
1520 CFDictionaryRef properties = getCFProperties( ioDevices[ ident ] );
1521 CFTypeRef ref = CFDictionaryGetValue( properties,
1522 CFSTR( kIOHIDProductKey ) );
1524 ref = CFDictionaryGetValue(properties, CFSTR( "USB Product Name" ) );
1527 !CFStringGetCString( ( CFStringRef )ref, name, 128,
1528 CFStringGetSystemEncoding( ) ) )
1530 fgWarning( "error getting device name" );
1535 #if TARGET_HOST_WIN32
1539 fgJoystick[ ident ]->js_id = JOYSTICKID1;
1540 fgJoystick[ ident ]->error = GL_FALSE;
1543 fgJoystick[ ident ]->js_id = JOYSTICKID2;
1544 fgJoystick[ ident ]->error = GL_FALSE;
1547 fgJoystick[ ident ]->num_axes = 0;
1548 fgJoystick[ ident ]->error = GL_TRUE;
1553 #if TARGET_HOST_UNIX_X11
1554 # if defined( __FreeBSD__ ) || defined( __NetBSD__ )
1555 fgJoystick[ ident ]->id = ident;
1556 fgJoystick[ ident ]->error = GL_FALSE;
1558 fgJoystick[ ident ]->os = calloc( 1, sizeof( struct os_specific_s ) );
1559 memset( fgJoystick[ ident ]->os, 0, sizeof( struct os_specific_s ) );
1560 if( ident < USB_IDENT_OFFSET )
1561 fgJoystick[ ident ]->os->is_analog = 1;
1562 if( fgJoystick[ ident ]->os->is_analog )
1563 sprintf( fgJoystick[ ident ]->os->fname, "%s%d", AJSDEV, ident );
1565 sprintf( fgJoystick[ ident ]->os->fname, "%s%d", UHIDDEV,
1566 ident - USB_IDENT_OFFSET );
1567 # elif defined( __linux__ )
1568 fgJoystick[ ident ]->id = ident;
1569 fgJoystick[ ident ]->error = GL_FALSE;
1571 sprintf( fgJoystick[ident]->fname, "/dev/input/js%d", ident );
1573 if( access( fgJoystick[ ident ]->fname, F_OK ) != 0 )
1574 sprintf( fgJoystick[ ident ]->fname, "/dev/js%d", ident );
1578 fghJoystickOpen( fgJoystick[ ident ] );
1582 * Try initializing all the joysticks (well, both of them)
1584 void fgInitialiseJoysticks ( void )
1586 if( !fgState.JoysticksInitialised )
1589 for ( ident = 0; ident < MAX_NUM_JOYSTICKS; ident++ )
1590 fghJoystickInit( ident );
1592 fgState.JoysticksInitialised = GL_TRUE;
1599 void fgJoystickClose( void )
1602 for( ident = 0; ident < MAX_NUM_JOYSTICKS; ident++ )
1604 if( fgJoystick[ ident ] )
1607 #if TARGET_HOST_MACINTOSH
1613 #if TARGET_HOST_MAC_OSX
1614 ( *( fgJoystick[ ident ]->hidDev ) )->
1615 close( fgJoystick[ ident ]->hidDev );
1618 #if TARGET_HOST_WIN32
1619 /* Do nothing special */
1622 #if TARGET_HOST_UNIX_X11
1623 #if defined( __FreeBSD__ ) || defined( __NetBSD__ )
1624 if( fgJoystick[ident]->os )
1626 if( ! fgJoystick[ ident ]->error )
1627 close( fgJoystick[ ident ]->os->fd );
1629 if( fgJoystick[ ident ]->os->hids )
1630 free (fgJoystick[ ident ]->os->hids);
1631 if( fgJoystick[ ident ]->os->hid_data_buf )
1632 free( fgJoystick[ ident ]->os->hid_data_buf );
1634 free( fgJoystick[ident]->os );
1638 if( ! fgJoystick[ident]->error )
1639 close( fgJoystick[ ident ]->fd );
1642 free( fgJoystick[ ident ] );
1643 fgJoystick[ ident ] = NULL;
1644 /* show joystick has been deinitialized */
1650 * Polls the joystick and executes the joystick callback hooked to the
1651 * window specified in the function's parameter:
1653 void fgJoystickPollWindow( SFG_Window* window )
1655 float axes[ _JS_MAX_AXES ];
1659 freeglut_return_if_fail( window );
1660 freeglut_return_if_fail( FETCH_WCB( *window, Joystick ) );
1662 for( ident = 0; ident < MAX_NUM_JOYSTICKS; ident++ )
1664 if( fgJoystick[ident] )
1666 fghJoystickRead( fgJoystick[ident], &buttons, axes );
1668 if( !fgJoystick[ident]->error )
1669 INVOKE_WCB( *window, Joystick,
1671 (int) ( axes[ 0 ] * 1000.0f ),
1672 (int) ( axes[ 1 ] * 1000.0f ),
1673 (int) ( axes[ 2 ] * 1000.0f ) )
1680 * Implementation for glutDeviceGet(GLUT_HAS_JOYSTICK)
1682 int fgJoystickDetect( void )
1686 fgInitialiseJoysticks ();
1691 if ( !fgState.JoysticksInitialised )
1694 for( ident=0; ident<MAX_NUM_JOYSTICKS; ident++ )
1695 if( fgJoystick[ident] && !fgJoystick[ident]->error )
1702 * Joystick information functions
1704 int glutJoystickGetNumAxes( int ident )
1706 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetNumAxes" );
1707 return fgJoystick[ ident ]->num_axes;
1709 int glutJoystickGetNumButtons( int ident )
1711 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetNumButtons" );
1712 return fgJoystick[ ident ]->num_buttons;
1714 int glutJoystickNotWorking( int ident )
1716 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickNotWorking" );
1717 return fgJoystick[ ident ]->error;
1720 float glutJoystickGetDeadBand( int ident, int axis )
1722 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetDeadBand" );
1723 return fgJoystick[ ident ]->dead_band [ axis ];
1725 void glutJoystickSetDeadBand( int ident, int axis, float db )
1727 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickSetDeadBand" );
1728 fgJoystick[ ident ]->dead_band[ axis ] = db;
1731 float glutJoystickGetSaturation( int ident, int axis )
1733 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetSaturation" );
1734 return fgJoystick[ ident ]->saturate[ axis ];
1736 void glutJoystickSetSaturation( int ident, int axis, float st )
1738 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickSetSaturation" );
1739 fgJoystick[ ident ]->saturate [ axis ] = st;
1742 void glutJoystickSetMinRange( int ident, float *axes )
1744 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickSetMinRange" );
1745 memcpy( fgJoystick[ ident ]->min, axes,
1746 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1748 void glutJoystickSetMaxRange( int ident, float *axes )
1750 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickSetMaxRange" );
1751 memcpy( fgJoystick[ ident ]->max, axes,
1752 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1754 void glutJoystickSetCenter( int ident, float *axes )
1756 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickSetCenter" );
1757 memcpy( fgJoystick[ ident ]->center, axes,
1758 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1761 void glutJoystickGetMinRange( int ident, float *axes )
1763 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetMinRange" );
1764 memcpy( axes, fgJoystick[ ident ]->min,
1765 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1767 void glutJoystickGetMaxRange( int ident, float *axes )
1769 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetMaxRange" );
1770 memcpy( axes, fgJoystick[ ident ]->max,
1771 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1773 void glutJoystickGetCenter( int ident, float *axes )
1775 FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutJoystickGetCenter" );
1776 memcpy( axes, fgJoystick[ ident ]->center,
1777 fgJoystick[ ident ]->num_axes * sizeof( float ) );
1780 /*** END OF FILE ***/