FMudanyali/FreeGLUT-Vita
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Splitting the X11-specific "freeglut_joystick.c" code into its own file

Browse Source 
git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1059 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
fayjf 2012-02-05 04:13:31 +00:00
parent d895defd48
commit ba766a7ef0
2 changed files with 466 additions and 424 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

425
freeglut/freeglut/src/Common/freeglut_joystick.c
View File

@ -314,7 +314,7 @@ extern void fgPlatformJoystickClose ( int ident );
* The static joystick structure pointer
*/
#define MAX_NUM_JOYSTICKS 2
static SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];
SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];
/*
* Read the raw joystick data
@ -854,429 +854,6 @@ void fgPlatformJoystickClose ( int ident )
}
#endif
#if TARGET_HOST_POSIX_X11
void fgPlatformJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes )
{
int status;
int i;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
int len;
if ( joy->pJoystick.os->is_analog )
{
int status = read ( joy->pJoystick.os->fd, &joy->pJoystick.os->ajs, sizeof(joy->pJoystick.os->ajs) );
if ( status != sizeof(joy->pJoystick.os->ajs) ) {
perror ( joy->pJoystick.os->fname );
joy->error = GL_TRUE;
return;
}
if ( buttons != NULL )
*buttons = ( joy->pJoystick.os->ajs.b1 ? 1 : 0 ) | ( joy->pJoystick.os->ajs.b2 ? 2 : 0 );
if ( axes != NULL )
{
axes[0] = (float) joy->pJoystick.os->ajs.x;
axes[1] = (float) joy->pJoystick.os->ajs.y;
}
return;
}
# ifdef HAVE_USB_JS
while ( ( len = read ( joy->pJoystick.os->fd, joy->pJoystick.os->hid_data_buf, joy->pJoystick.os->hid_dlen ) ) == joy->pJoystick.os->hid_dlen )
{
struct hid_item *h;
for ( h = joy->pJoystick.os->hids; h; h = h->next )
{
int d = hid_get_data ( joy->pJoystick.os->hid_data_buf, h );
int page = HID_PAGE ( h->usage );
int usage = HID_USAGE ( h->usage );
if ( page == HUP_GENERIC_DESKTOP )
{
int i;
for ( i = 0; i < joy->num_axes; i++ )
if (joy->pJoystick.os->axes_usage[i] == usage)
{
if (usage == HUG_HAT_SWITCH)
{
if (d < 0 || d > 8)
d = 0; /* safety */
joy->pJoystick.os->cache_axes[i] = (float)hatmap_x[d];
joy->pJoystick.os->cache_axes[i + 1] = (float)hatmap_y[d];
}
else
{
joy->pJoystick.os->cache_axes[i] = (float)d;
}
break;
}
}
else if (page == HUP_BUTTON)
{
if (usage > 0 && usage < _JS_MAX_BUTTONS + 1)
{
if (d)
joy->pJoystick.os->cache_buttons |= (1 << ( usage - 1 ));
else
joy->pJoystick.os->cache_buttons &= ~(1 << ( usage - 1 ));
}
}
}
}
# ifdef HAVE_ERRNO_H
if ( len < 0 && errno != EAGAIN )
# else
if ( len < 0 )
# endif
{
perror( joy->pJoystick.os->fname );
joy->error = 1;
}
if ( buttons != NULL ) *buttons = joy->pJoystick.os->cache_buttons;
if ( axes != NULL )
memcpy ( axes, joy->pJoystick.os->cache_axes, sizeof(float) * joy->num_axes );
# endif
#endif
#ifdef JS_NEW
while ( 1 )
{
status = read ( joy->pJoystick.fd, &joy->pJoystick.js, sizeof(struct js_event) );
if ( status != sizeof( struct js_event ) )
{
# ifdef HAVE_ERRNO_H
if ( errno == EAGAIN )
{
/* Use the old values */
if ( buttons )
*buttons = joy->pJoystick.tmp_buttons;
if ( axes )
memcpy( axes, joy->pJoystick.tmp_axes,
sizeof( float ) * joy->num_axes );
return;
}
# endif
fgWarning ( "%s", joy->pJoystick.fname );
joy->error = GL_TRUE;
return;
}
switch ( joy->pJoystick.js.type & ~JS_EVENT_INIT )
{
case JS_EVENT_BUTTON:
if( joy->pJoystick.js.value == 0 ) /* clear the flag */
joy->pJoystick.tmp_buttons &= ~( 1 << joy->pJoystick.js.number );
else
joy->pJoystick.tmp_buttons |= ( 1 << joy->pJoystick.js.number );
break;
case JS_EVENT_AXIS:
if ( joy->pJoystick.js.number < joy->num_axes )
{
joy->pJoystick.tmp_axes[ joy->pJoystick.js.number ] = ( float )joy->pJoystick.js.value;
if( axes )
memcpy( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );
}
break;
default:
fgWarning ( "PLIB_JS: Unrecognised /dev/js return!?!" );
/* use the old values */
if ( buttons != NULL ) *buttons = joy->pJoystick.tmp_buttons;
if ( axes != NULL )
memcpy ( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );
return;
}
if( buttons )
*buttons = joy->pJoystick.tmp_buttons;
}
#else
status = read( joy->pJoystick.fd, &joy->pJoystick.js, JS_RETURN );
if ( status != JS_RETURN )
{
fgWarning( "%s", joy->pJoystick.fname );
joy->error = GL_TRUE;
return;
}
if ( buttons )
# if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
*buttons = ( joy->pJoystick.js.b1 ? 1 : 0 ) | ( joy->pJoystick.js.b2 ? 2 : 0 ); /* XXX Should not be here -- BSD is handled earlier */
# else
*buttons = joy->pJoystick.js.buttons;
# endif
if ( axes )
{
axes[ 0 ] = (float) joy->pJoystick.js.x;
axes[ 1 ] = (float) joy->pJoystick.js.y;
}
#endif
}
void fgPlatformJoystickOpen( SFG_Joystick* joy )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
int i = 0;
char *cp;
#endif
#ifdef JS_NEW
int i = 0;
unsigned char u;
#else
# if defined( __linux__ ) || TARGET_HOST_SOLARIS
int i = 0;
int counter = 0;
# endif
#endif
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
for( i = 0; i < _JS_MAX_AXES; i++ )
joy->pJoystick.os->cache_axes[ i ] = 0.0f;
joy->pJoystick.os->cache_buttons = 0;
joy->pJoystick.os->fd = open( joy->pJoystick.os->fname, O_RDONLY | O_NONBLOCK);
#ifdef HAVE_ERRNO_H
if( joy->pJoystick.os->fd < 0 && errno == EACCES )
fgWarning ( "%s exists but is not readable by you", joy->pJoystick.os->fname );
#endif
joy->error =( joy->pJoystick.os->fd < 0 );
if( joy->error )
return;
joy->num_axes = 0;
joy->num_buttons = 0;
if( joy->pJoystick.os->is_analog )
{
FILE *joyfile;
char joyfname[ 1024 ];
int noargs, in_no_axes;
float axes [ _JS_MAX_AXES ];
int buttons[ _JS_MAX_AXES ];
joy->num_axes = 2;
joy->num_buttons = 32;
fghJoystickRawRead( joy, buttons, axes );
joy->error = axes[ 0 ] < -1000000000.0f;
if( joy->error )
return;
snprintf( joyfname, sizeof(joyfname), "%s/.joy%drc", getenv( "HOME" ), joy->id );
joyfile = fopen( joyfname, "r" );
joy->error =( joyfile == NULL );
if( joy->error )
return;
noargs = fscanf( joyfile, "%d%f%f%f%f%f%f", &in_no_axes,
&joy->min[ 0 ], &joy->center[ 0 ], &joy->max[ 0 ],
&joy->min[ 1 ], &joy->center[ 1 ], &joy->max[ 1 ] );
joy->error = noargs != 7 || in_no_axes != _JS_MAX_AXES;
fclose( joyfile );
if( joy->error )
return;
for( i = 0; i < _JS_MAX_AXES; i++ )
{
joy->dead_band[ i ] = 0.0f;
joy->saturate [ i ] = 1.0f;
}
return; /* End of analog code */
}
# ifdef HAVE_USB_JS
if( ! fghJoystickInitializeHID( joy->pJoystick.os, &joy->num_axes,
&joy->num_buttons ) )
{
close( joy->pJoystick.os->fd );
joy->error = GL_TRUE;
return;
}
cp = strrchr( joy->pJoystick.os->fname, '/' );
if( cp )
{
if( fghJoystickFindUSBdev( &cp[1], joy->name, sizeof( joy->name ) ) ==
0 )
strcpy( joy->name, &cp[1] );
}
if( joy->num_axes > _JS_MAX_AXES )
joy->num_axes = _JS_MAX_AXES;
for( i = 0; i < _JS_MAX_AXES; i++ )
{
/* We really should get this from the HID, but that data seems
* to be quite unreliable for analog-to-USB converters. Punt for
* now.
*/
if( joy->pJoystick.os->axes_usage[ i ] == HUG_HAT_SWITCH )
{
joy->max [ i ] = 1.0f;
joy->center[ i ] = 0.0f;
joy->min [ i ] = -1.0f;
}
else
{
joy->max [ i ] = 255.0f;
joy->center[ i ] = 127.0f;
joy->min [ i ] = 0.0f;
}
joy->dead_band[ i ] = 0.0f;
joy->saturate[ i ] = 1.0f;
}
# endif
#endif
#if defined( __linux__ ) || TARGET_HOST_SOLARIS
/* Default for older Linux systems. */
joy->num_axes = 2;
joy->num_buttons = 32;
# ifdef JS_NEW
for( i = 0; i < _JS_MAX_AXES; i++ )
joy->pJoystick.tmp_axes[ i ] = 0.0f;
joy->pJoystick.tmp_buttons = 0;
# endif
joy->pJoystick.fd = open( joy->pJoystick.fname, O_RDONLY );
joy->error =( joy->pJoystick.fd < 0 );
if( joy->error )
return;
/* Set the correct number of axes for the linux driver */
# ifdef JS_NEW
/* Melchior Franz's fixes for big-endian Linuxes since writing
* to the upper byte of an uninitialized word doesn't work.
* 9 April 2003
*/
ioctl( joy->pJoystick.fd, JSIOCGAXES, &u );
joy->num_axes = u;
ioctl( joy->pJoystick.fd, JSIOCGBUTTONS, &u );
joy->num_buttons = u;
ioctl( joy->pJoystick.fd, JSIOCGNAME( sizeof( joy->name ) ), joy->name );
fcntl( joy->pJoystick.fd, F_SETFL, O_NONBLOCK );
# endif
/*
* The Linux driver seems to return 512 for all axes
* when no stick is present - but there is a chance
* that could happen by accident - so it's gotta happen
* on both axes for at least 100 attempts.
*
* PWO: shouldn't be that done somehow wiser on the kernel level?
*/
# ifndef JS_NEW
counter = 0;
do
{
fghJoystickRawRead( joy, NULL, joy->center );
counter++;
} while( !joy->error &&
counter < 100 &&
joy->center[ 0 ] == 512.0f &&
joy->center[ 1 ] == 512.0f );
if ( counter >= 100 )
joy->error = GL_TRUE;
# endif
for( i = 0; i < _JS_MAX_AXES; i++ )
{
# ifdef JS_NEW
joy->max [ i ] = 32767.0f;
joy->center[ i ] = 0.0f;
joy->min [ i ] = -32767.0f;
# else
joy->max[ i ] = joy->center[ i ] * 2.0f;
joy->min[ i ] = 0.0f;
# endif
joy->dead_band[ i ] = 0.0f;
joy->saturate [ i ] = 1.0f;
}
#endif
}
void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
fgJoystick[ ident ]->id = ident;
fgJoystick[ ident ]->error = GL_FALSE;
fgJoystick[ ident ]->pJoystick.os = calloc( 1, sizeof( struct os_specific_s ) );
memset( fgJoystick[ ident ]->pJoystick.os, 0, sizeof( struct os_specific_s ) );
if( ident < USB_IDENT_OFFSET )
fgJoystick[ ident ]->pJoystick.os->is_analog = 1;
if( fgJoystick[ ident ]->pJoystick.os->is_analog )
snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", AJSDEV, ident );
else
snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", UHIDDEV,
ident - USB_IDENT_OFFSET );
#elif defined( __linux__ )
fgJoystick[ ident ]->id = ident;
fgJoystick[ ident ]->error = GL_FALSE;
snprintf( fgJoystick[ident]->pJoystick.fname, sizeof(fgJoystick[ident]->pJoystick.fname), "/dev/input/js%d", ident );
if( access( fgJoystick[ ident ]->pJoystick.fname, F_OK ) != 0 )
snprintf( fgJoystick[ ident ]->pJoystick.fname, sizeof(fgJoystick[ ident ]->pJoystick.fname), "/dev/js%d", ident );
#endif
}
void fgPlatformJoystickClose ( int ident )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
if( fgJoystick[ident]->pJoystick.os )
{
if( ! fgJoystick[ ident ]->error )
close( fgJoystick[ ident ]->pJoystick.os->fd );
#ifdef HAVE_USB_JS
if( fgJoystick[ ident ]->pJoystick.os->hids )
free (fgJoystick[ ident ]->pJoystick.os->hids);
if( fgJoystick[ ident ]->pJoystick.os->hid_data_buf )
free( fgJoystick[ ident ]->pJoystick.os->hid_data_buf );
#endif
free( fgJoystick[ident]->pJoystick.os );
}
#endif
if( ! fgJoystick[ident]->error )
close( fgJoystick[ ident ]->pJoystick.fd );
}
#endif

465
freeglut/freeglut/src/x11/freeglut_joystick_x11.c
View File

@ -0,0 +1,465 @@
/*
* freeglut_joystick_x11.c
*
* Joystick handling code
*
* Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
* Written by Steve Baker, <sjbaker1@airmail.net>
* Copied for Platform code by Evan Felix <karcaw at gmail.com>
* Creation date: Thur Feb 2 2012
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* FreeBSD port by Stephen Montgomery-Smith <stephen@math.missouri.edu>
*
* Redone by John Fay 2/4/04 with another look from the PLIB "js" library.
* Many thanks for Steve Baker for permission to pull from that library.
*/
#include <GL/freeglut.h>
#include "freeglut_internal.h"
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
/*this should be defined in a header file */
#define MAX_NUM_JOYSTICKS 2
extern SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];
void fgPlatformJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes )
{
int status;
int i;
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)
int len;
if ( joy->pJoystick.os->is_analog )
{
int status = read ( joy->pJoystick.os->fd, &joy->pJoystick.os->ajs, sizeof(joy->pJoystick.os->ajs) );
if ( status != sizeof(joy->pJoystick.os->ajs) ) {
perror ( joy->pJoystick.os->fname );
joy->error = GL_TRUE;
return;
}
if ( buttons != NULL )
*buttons = ( joy->pJoystick.os->ajs.b1 ? 1 : 0 ) | ( joy->pJoystick.os->ajs.b2 ? 2 : 0 );
if ( axes != NULL )
{
axes[0] = (float) joy->pJoystick.os->ajs.x;
axes[1] = (float) joy->pJoystick.os->ajs.y;
}
return;
}
# ifdef HAVE_USB_JS
while ( ( len = read ( joy->pJoystick.os->fd, joy->pJoystick.os->hid_data_buf, joy->pJoystick.os->hid_dlen ) ) == joy->pJoystick.os->hid_dlen )
{
struct hid_item *h;
for ( h = joy->pJoystick.os->hids; h; h = h->next )
{
int d = hid_get_data ( joy->pJoystick.os->hid_data_buf, h );
int page = HID_PAGE ( h->usage );
int usage = HID_USAGE ( h->usage );
if ( page == HUP_GENERIC_DESKTOP )
{
int i;
for ( i = 0; i < joy->num_axes; i++ )
if (joy->pJoystick.os->axes_usage[i] == usage)
{
if (usage == HUG_HAT_SWITCH)
{
if (d < 0 || d > 8)
d = 0; /* safety */
joy->pJoystick.os->cache_axes[i] = (float)hatmap_x[d];
joy->pJoystick.os->cache_axes[i + 1] = (float)hatmap_y[d];
}
else
{
joy->pJoystick.os->cache_axes[i] = (float)d;
}
break;
}
}
else if (page == HUP_BUTTON)
{
if (usage > 0 && usage < _JS_MAX_BUTTONS + 1)
{
if (d)
joy->pJoystick.os->cache_buttons |= (1 << ( usage - 1 ));
else
joy->pJoystick.os->cache_buttons &= ~(1 << ( usage - 1 ));
}
}
}
}
# ifdef HAVE_ERRNO_H
if ( len < 0 && errno != EAGAIN )
# else
if ( len < 0 )
# endif
{
perror( joy->pJoystick.os->fname );
joy->error = 1;
}
if ( buttons != NULL ) *buttons = joy->pJoystick.os->cache_buttons;
if ( axes != NULL )
memcpy ( axes, joy->pJoystick.os->cache_axes, sizeof(float) * joy->num_axes );
# endif
#endif
#ifdef JS_NEW
while ( 1 )
{
status = read ( joy->pJoystick.fd, &joy->pJoystick.js, sizeof(struct js_event) );
if ( status != sizeof( struct js_event ) )
{
# ifdef HAVE_ERRNO_H
if ( errno == EAGAIN )
{
/* Use the old values */
if ( buttons )
*buttons = joy->pJoystick.tmp_buttons;
if ( axes )
memcpy( axes, joy->pJoystick.tmp_axes,
sizeof( float ) * joy->num_axes );
return;
}
# endif
fgWarning ( "%s", joy->pJoystick.fname );
joy->error = GL_TRUE;
return;
}
switch ( joy->pJoystick.js.type & ~JS_EVENT_INIT )
{
case JS_EVENT_BUTTON:
if( joy->pJoystick.js.value == 0 ) /* clear the flag */
joy->pJoystick.tmp_buttons &= ~( 1 << joy->pJoystick.js.number );
else
joy->pJoystick.tmp_buttons |= ( 1 << joy->pJoystick.js.number );
break;
case JS_EVENT_AXIS:
if ( joy->pJoystick.js.number < joy->num_axes )
{
joy->pJoystick.tmp_axes[ joy->pJoystick.js.number ] = ( float )joy->pJoystick.js.value;
if( axes )
memcpy( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );
}
break;
default:
fgWarning ( "PLIB_JS: Unrecognised /dev/js return!?!" );
/* use the old values */
if ( buttons != NULL ) *buttons = joy->pJoystick.tmp_buttons;
if ( axes != NULL )
memcpy ( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );
return;
}
if( buttons )
*buttons = joy->pJoystick.tmp_buttons;
}
#else
status = read( joy->pJoystick.fd, &joy->pJoystick.js, JS_RETURN );
if ( status != JS_RETURN )
{
fgWarning( "%s", joy->pJoystick.fname );
joy->error = GL_TRUE;
return;
}
if ( buttons )
# if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
*buttons = ( joy->pJoystick.js.b1 ? 1 : 0 ) | ( joy->pJoystick.js.b2 ? 2 : 0 ); /* XXX Should not be here -- BSD is handled earlier */
# else
*buttons = joy->pJoystick.js.buttons;
# endif
if ( axes )
{
axes[ 0 ] = (float) joy->pJoystick.js.x;
axes[ 1 ] = (float) joy->pJoystick.js.y;
}
#endif
}
void fgPlatformJoystickOpen( SFG_Joystick* joy )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
int i = 0;
char *cp;
#endif
#ifdef JS_NEW
unsigned char u;
int i=0;
#else
# if defined( __linux__ ) || TARGET_HOST_SOLARIS
int i = 0;
int counter = 0;
# endif
#endif
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
for( i = 0; i < _JS_MAX_AXES; i++ )
joy->pJoystick.os->cache_axes[ i ] = 0.0f;
joy->pJoystick.os->cache_buttons = 0;
joy->pJoystick.os->fd = open( joy->pJoystick.os->fname, O_RDONLY | O_NONBLOCK);
#ifdef HAVE_ERRNO_H
if( joy->pJoystick.os->fd < 0 && errno == EACCES )
fgWarning ( "%s exists but is not readable by you", joy->pJoystick.os->fname );
#endif
joy->error =( joy->pJoystick.os->fd < 0 );
if( joy->error )
return;
joy->num_axes = 0;
joy->num_buttons = 0;
if( joy->pJoystick.os->is_analog )
{
FILE *joyfile;
char joyfname[ 1024 ];
int noargs, in_no_axes;
float axes [ _JS_MAX_AXES ];
int buttons[ _JS_MAX_AXES ];
joy->num_axes = 2;
joy->num_buttons = 32;
fghJoystickRawRead( joy, buttons, axes );
joy->error = axes[ 0 ] < -1000000000.0f;
if( joy->error )
return;
snprintf( joyfname, sizeof(joyfname), "%s/.joy%drc", getenv( "HOME" ), joy->id );
joyfile = fopen( joyfname, "r" );
joy->error =( joyfile == NULL );
if( joy->error )
return;
noargs = fscanf( joyfile, "%d%f%f%f%f%f%f", &in_no_axes,
&joy->min[ 0 ], &joy->center[ 0 ], &joy->max[ 0 ],
&joy->min[ 1 ], &joy->center[ 1 ], &joy->max[ 1 ] );
joy->error = noargs != 7 || in_no_axes != _JS_MAX_AXES;
fclose( joyfile );
if( joy->error )
return;
for( i = 0; i < _JS_MAX_AXES; i++ )
{
joy->dead_band[ i ] = 0.0f;
joy->saturate [ i ] = 1.0f;
}
return; /* End of analog code */
}
# ifdef HAVE_USB_JS
if( ! fghJoystickInitializeHID( joy->pJoystick.os, &joy->num_axes,
&joy->num_buttons ) )
{
close( joy->pJoystick.os->fd );
joy->error = GL_TRUE;
return;
}
cp = strrchr( joy->pJoystick.os->fname, '/' );
if( cp )
{
if( fghJoystickFindUSBdev( &cp[1], joy->name, sizeof( joy->name ) ) ==
0 )
strcpy( joy->name, &cp[1] );
}
if( joy->num_axes > _JS_MAX_AXES )
joy->num_axes = _JS_MAX_AXES;
for( i = 0; i < _JS_MAX_AXES; i++ )
{
/* We really should get this from the HID, but that data seems
* to be quite unreliable for analog-to-USB converters. Punt for
* now.
*/
if( joy->pJoystick.os->axes_usage[ i ] == HUG_HAT_SWITCH )
{
joy->max [ i ] = 1.0f;
joy->center[ i ] = 0.0f;
joy->min [ i ] = -1.0f;
}
else
{
joy->max [ i ] = 255.0f;
joy->center[ i ] = 127.0f;
joy->min [ i ] = 0.0f;
}
joy->dead_band[ i ] = 0.0f;
joy->saturate[ i ] = 1.0f;
}
# endif
#endif
#if defined( __linux__ ) || TARGET_HOST_SOLARIS
/* Default for older Linux systems. */
joy->num_axes = 2;
joy->num_buttons = 32;
# ifdef JS_NEW
for( i = 0; i < _JS_MAX_AXES; i++ )
joy->pJoystick.tmp_axes[ i ] = 0.0f;
joy->pJoystick.tmp_buttons = 0;
# endif
joy->pJoystick.fd = open( joy->pJoystick.fname, O_RDONLY );
joy->error =( joy->pJoystick.fd < 0 );
if( joy->error )
return;
/* Set the correct number of axes for the linux driver */
# ifdef JS_NEW
/* Melchior Franz's fixes for big-endian Linuxes since writing
* to the upper byte of an uninitialized word doesn't work.
* 9 April 2003
*/
ioctl( joy->pJoystick.fd, JSIOCGAXES, &u );
joy->num_axes = u;
ioctl( joy->pJoystick.fd, JSIOCGBUTTONS, &u );
joy->num_buttons = u;
ioctl( joy->pJoystick.fd, JSIOCGNAME( sizeof( joy->name ) ), joy->name );
fcntl( joy->pJoystick.fd, F_SETFL, O_NONBLOCK );
# endif
/*
* The Linux driver seems to return 512 for all axes
* when no stick is present - but there is a chance
* that could happen by accident - so it's gotta happen
* on both axes for at least 100 attempts.
*
* PWO: shouldn't be that done somehow wiser on the kernel level?
*/
# ifndef JS_NEW
counter = 0;
do
{
fghJoystickRawRead( joy, NULL, joy->center );
counter++;
} while( !joy->error &&
counter < 100 &&
joy->center[ 0 ] == 512.0f &&
joy->center[ 1 ] == 512.0f );
if ( counter >= 100 )
joy->error = GL_TRUE;
# endif
for( i = 0; i < _JS_MAX_AXES; i++ )
{
# ifdef JS_NEW
joy->max [ i ] = 32767.0f;
joy->center[ i ] = 0.0f;
joy->min [ i ] = -32767.0f;
# else
joy->max[ i ] = joy->center[ i ] * 2.0f;
joy->min[ i ] = 0.0f;
# endif
joy->dead_band[ i ] = 0.0f;
joy->saturate [ i ] = 1.0f;
}
#endif
}
void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
fgJoystick[ ident ]->id = ident;
fgJoystick[ ident ]->error = GL_FALSE;
fgJoystick[ ident ]->pJoystick.os = calloc( 1, sizeof( struct os_specific_s ) );
memset( fgJoystick[ ident ]->pJoystick.os, 0, sizeof( struct os_specific_s ) );
if( ident < USB_IDENT_OFFSET )
fgJoystick[ ident ]->pJoystick.os->is_analog = 1;
if( fgJoystick[ ident ]->pJoystick.os->is_analog )
snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", AJSDEV, ident );
else
snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", UHIDDEV,
ident - USB_IDENT_OFFSET );
#elif defined( __linux__ )
fgJoystick[ ident ]->id = ident;
fgJoystick[ ident ]->error = GL_FALSE;
snprintf( fgJoystick[ident]->pJoystick.fname, sizeof(fgJoystick[ident]->pJoystick.fname), "/dev/input/js%d", ident );
if( access( fgJoystick[ ident ]->pJoystick.fname, F_OK ) != 0 )
snprintf( fgJoystick[ ident ]->pJoystick.fname, sizeof(fgJoystick[ ident ]->pJoystick.fname), "/dev/js%d", ident );
#endif
}
void fgPlatformJoystickClose ( int ident )
{
#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )
if( fgJoystick[ident]->pJoystick.os )
{
if( ! fgJoystick[ ident ]->error )
close( fgJoystick[ ident ]->pJoystick.os->fd );
#ifdef HAVE_USB_JS
if( fgJoystick[ ident ]->pJoystick.os->hids )
free (fgJoystick[ ident ]->pJoystick.os->hids);
if( fgJoystick[ ident ]->pJoystick.os->hid_data_buf )
free( fgJoystick[ ident ]->pJoystick.os->hid_data_buf );
#endif
free( fgJoystick[ident]->pJoystick.os );
}
#endif
if( ! fgJoystick[ident]->error )
close( fgJoystick[ ident ]->pJoystick.fd );
}