Splitting the X11-specific "freeglut_joystick.c" code into its own file
authorJohn F. Fay <johnffay@nettally.com>
Sun, 5 Feb 2012 04:13:31 +0000 (04:13 +0000)
committerJohn F. Fay <johnffay@nettally.com>
Sun, 5 Feb 2012 04:13:31 +0000 (04:13 +0000)
git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@1059 7f0cb862-5218-0410-a997-914c9d46530a

src/Common/freeglut_joystick.c
src/x11/freeglut_joystick_x11.c

index 8c23bba..c2190da 100644 (file)
@@ -314,7 +314,7 @@ extern void fgPlatformJoystickClose ( int ident );
  * The static joystick structure pointer\r
  */\r
 #define MAX_NUM_JOYSTICKS  2\r
-static SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];\r
+SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];\r
 \r
 /*\r
  * Read the raw joystick data\r
@@ -854,429 +854,6 @@ void fgPlatformJoystickClose ( int ident )
 }\r
 #endif\r
 \r
-#if TARGET_HOST_POSIX_X11\r
-void fgPlatformJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes )\r
-{\r
-    int status;\r
-\r
-    int i;\r
-\r
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)\r
-    int len;\r
-\r
-    if ( joy->pJoystick.os->is_analog )\r
-    {\r
-        int status = read ( joy->pJoystick.os->fd, &joy->pJoystick.os->ajs, sizeof(joy->pJoystick.os->ajs) );\r
-        if ( status != sizeof(joy->pJoystick.os->ajs) ) {\r
-            perror ( joy->pJoystick.os->fname );\r
-            joy->error = GL_TRUE;\r
-            return;\r
-        }\r
-        if ( buttons != NULL )\r
-            *buttons = ( joy->pJoystick.os->ajs.b1 ? 1 : 0 ) | ( joy->pJoystick.os->ajs.b2 ? 2 : 0 );\r
-\r
-        if ( axes != NULL )\r
-        {\r
-            axes[0] = (float) joy->pJoystick.os->ajs.x;\r
-            axes[1] = (float) joy->pJoystick.os->ajs.y;\r
-        }\r
-\r
-        return;\r
-    }\r
-\r
-#  ifdef HAVE_USB_JS\r
-    while ( ( len = read ( joy->pJoystick.os->fd, joy->pJoystick.os->hid_data_buf, joy->pJoystick.os->hid_dlen ) ) == joy->pJoystick.os->hid_dlen )\r
-    {\r
-        struct hid_item *h;\r
-\r
-        for  ( h = joy->pJoystick.os->hids; h; h = h->next )\r
-        {\r
-            int d = hid_get_data ( joy->pJoystick.os->hid_data_buf, h );\r
-\r
-            int page = HID_PAGE ( h->usage );\r
-            int usage = HID_USAGE ( h->usage );\r
-\r
-            if ( page == HUP_GENERIC_DESKTOP )\r
-            {\r
-                int i;\r
-                for ( i = 0; i < joy->num_axes; i++ )\r
-                    if (joy->pJoystick.os->axes_usage[i] == usage)\r
-                    {\r
-                        if (usage == HUG_HAT_SWITCH)\r
-                        {\r
-                            if (d < 0 || d > 8)\r
-                                d = 0;  /* safety */\r
-                            joy->pJoystick.os->cache_axes[i] = (float)hatmap_x[d];\r
-                            joy->pJoystick.os->cache_axes[i + 1] = (float)hatmap_y[d];\r
-                        }\r
-                        else\r
-                        {\r
-                            joy->pJoystick.os->cache_axes[i] = (float)d;\r
-                        }\r
-                        break;\r
-                    }\r
-            }\r
-            else if (page == HUP_BUTTON)\r
-            {\r
-               if (usage > 0 && usage < _JS_MAX_BUTTONS + 1)\r
-               {\r
-                   if (d)\r
-                       joy->pJoystick.os->cache_buttons |=  (1 << ( usage - 1 ));\r
-                   else\r
-                       joy->pJoystick.os->cache_buttons &= ~(1 << ( usage - 1 ));\r
-               }\r
-            }\r
-        }\r
-    }\r
-#    ifdef HAVE_ERRNO_H\r
-    if ( len < 0 && errno != EAGAIN )\r
-#    else\r
-    if ( len < 0 )\r
-#    endif\r
-    {\r
-        perror( joy->pJoystick.os->fname );\r
-        joy->error = 1;\r
-    }\r
-    if ( buttons != NULL ) *buttons = joy->pJoystick.os->cache_buttons;\r
-    if ( axes    != NULL )\r
-        memcpy ( axes, joy->pJoystick.os->cache_axes, sizeof(float) * joy->num_axes );\r
-#  endif\r
-#endif\r
-\r
-#ifdef JS_NEW\r
-\r
-    while ( 1 )\r
-    {\r
-        status = read ( joy->pJoystick.fd, &joy->pJoystick.js, sizeof(struct js_event) );\r
-\r
-        if ( status != sizeof( struct js_event ) )\r
-        {\r
-#  ifdef HAVE_ERRNO_H\r
-            if ( errno == EAGAIN )\r
-            {\r
-                /* Use the old values */\r
-                if ( buttons )\r
-                    *buttons = joy->pJoystick.tmp_buttons;\r
-                if ( axes )\r
-                    memcpy( axes, joy->pJoystick.tmp_axes,\r
-                            sizeof( float ) * joy->num_axes );\r
-                return;\r
-            }\r
-#  endif\r
-\r
-            fgWarning ( "%s", joy->pJoystick.fname );\r
-            joy->error = GL_TRUE;\r
-            return;\r
-        }\r
-\r
-        switch ( joy->pJoystick.js.type & ~JS_EVENT_INIT )\r
-        {\r
-        case JS_EVENT_BUTTON:\r
-            if( joy->pJoystick.js.value == 0 ) /* clear the flag */\r
-                joy->pJoystick.tmp_buttons &= ~( 1 << joy->pJoystick.js.number );\r
-            else\r
-                joy->pJoystick.tmp_buttons |= ( 1 << joy->pJoystick.js.number );\r
-            break;\r
-\r
-        case JS_EVENT_AXIS:\r
-            if ( joy->pJoystick.js.number < joy->num_axes )\r
-            {\r
-                joy->pJoystick.tmp_axes[ joy->pJoystick.js.number ] = ( float )joy->pJoystick.js.value;\r
-\r
-                if( axes )\r
-                    memcpy( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );\r
-            }\r
-            break;\r
-\r
-        default:\r
-            fgWarning ( "PLIB_JS: Unrecognised /dev/js return!?!" );\r
-\r
-            /* use the old values */\r
-\r
-            if ( buttons != NULL ) *buttons = joy->pJoystick.tmp_buttons;\r
-            if ( axes    != NULL )\r
-                memcpy ( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );\r
-\r
-            return;\r
-        }\r
-\r
-        if( buttons )\r
-            *buttons = joy->pJoystick.tmp_buttons;\r
-    }\r
-#else\r
-\r
-    status = read( joy->pJoystick.fd, &joy->pJoystick.js, JS_RETURN );\r
-\r
-    if ( status != JS_RETURN )\r
-    {\r
-        fgWarning( "%s", joy->pJoystick.fname );\r
-        joy->error = GL_TRUE;\r
-        return;\r
-    }\r
-\r
-    if ( buttons )\r
-#    if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
-        *buttons = ( joy->pJoystick.js.b1 ? 1 : 0 ) | ( joy->pJoystick.js.b2 ? 2 : 0 );  /* XXX Should not be here -- BSD is handled earlier */\r
-#    else\r
-        *buttons = joy->pJoystick.js.buttons;\r
-#    endif\r
-\r
-    if ( axes )\r
-    {\r
-        axes[ 0 ] = (float) joy->pJoystick.js.x;\r
-        axes[ 1 ] = (float) joy->pJoystick.js.y;\r
-    }\r
-#endif\r
-}\r
-\r
-\r
-void fgPlatformJoystickOpen( SFG_Joystick* joy )\r
-{\r
-#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
-       int i = 0;\r
-       char *cp;\r
-#endif\r
-#ifdef JS_NEW\r
-       int i = 0;\r
-       unsigned char u;\r
-#else\r
-#  if defined( __linux__ ) || TARGET_HOST_SOLARIS\r
-       int i = 0;\r
-    int counter = 0;\r
-#  endif\r
-#endif\r
-\r
-#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
-    for( i = 0; i < _JS_MAX_AXES; i++ )\r
-        joy->pJoystick.os->cache_axes[ i ] = 0.0f;\r
-\r
-    joy->pJoystick.os->cache_buttons = 0;\r
-\r
-    joy->pJoystick.os->fd = open( joy->pJoystick.os->fname, O_RDONLY | O_NONBLOCK);\r
-\r
-#ifdef HAVE_ERRNO_H\r
-    if( joy->pJoystick.os->fd < 0 && errno == EACCES )\r
-        fgWarning ( "%s exists but is not readable by you", joy->pJoystick.os->fname );\r
-#endif\r
-\r
-    joy->error =( joy->pJoystick.os->fd < 0 );\r
-\r
-    if( joy->error )\r
-        return;\r
-\r
-    joy->num_axes = 0;\r
-    joy->num_buttons = 0;\r
-    if( joy->pJoystick.os->is_analog )\r
-    {\r
-        FILE *joyfile;\r
-        char joyfname[ 1024 ];\r
-        int noargs, in_no_axes;\r
-\r
-        float axes [ _JS_MAX_AXES ];\r
-        int buttons[ _JS_MAX_AXES ];\r
-\r
-        joy->num_axes    =  2;\r
-        joy->num_buttons = 32;\r
-\r
-        fghJoystickRawRead( joy, buttons, axes );\r
-        joy->error = axes[ 0 ] < -1000000000.0f;\r
-        if( joy->error )\r
-            return;\r
-\r
-        snprintf( joyfname, sizeof(joyfname), "%s/.joy%drc", getenv( "HOME" ), joy->id );\r
-\r
-        joyfile = fopen( joyfname, "r" );\r
-        joy->error =( joyfile == NULL );\r
-        if( joy->error )\r
-            return;\r
-\r
-        noargs = fscanf( joyfile, "%d%f%f%f%f%f%f", &in_no_axes,\r
-                         &joy->min[ 0 ], &joy->center[ 0 ], &joy->max[ 0 ],\r
-                         &joy->min[ 1 ], &joy->center[ 1 ], &joy->max[ 1 ] );\r
-        joy->error = noargs != 7 || in_no_axes != _JS_MAX_AXES;\r
-        fclose( joyfile );\r
-        if( joy->error )\r
-            return;\r
-\r
-        for( i = 0; i < _JS_MAX_AXES; i++ )\r
-        {\r
-            joy->dead_band[ i ] = 0.0f;\r
-            joy->saturate [ i ] = 1.0f;\r
-        }\r
-\r
-        return;    /* End of analog code */\r
-    }\r
-\r
-#    ifdef HAVE_USB_JS\r
-    if( ! fghJoystickInitializeHID( joy->pJoystick.os, &joy->num_axes,\r
-                                    &joy->num_buttons ) )\r
-    {\r
-        close( joy->pJoystick.os->fd );\r
-        joy->error = GL_TRUE;\r
-        return;\r
-    }\r
-\r
-    cp = strrchr( joy->pJoystick.os->fname, '/' );\r
-    if( cp )\r
-    {\r
-        if( fghJoystickFindUSBdev( &cp[1], joy->name, sizeof( joy->name ) ) ==\r
-            0 )\r
-            strcpy( joy->name, &cp[1] );\r
-    }\r
-\r
-    if( joy->num_axes > _JS_MAX_AXES )\r
-        joy->num_axes = _JS_MAX_AXES;\r
-\r
-    for( i = 0; i < _JS_MAX_AXES; i++ )\r
-    {\r
-        /* We really should get this from the HID, but that data seems\r
-         * to be quite unreliable for analog-to-USB converters. Punt for\r
-         * now.\r
-         */\r
-        if( joy->pJoystick.os->axes_usage[ i ] == HUG_HAT_SWITCH )\r
-        {\r
-            joy->max   [ i ] = 1.0f;\r
-            joy->center[ i ] = 0.0f;\r
-            joy->min   [ i ] = -1.0f;\r
-        }\r
-        else\r
-        {\r
-            joy->max   [ i ] = 255.0f;\r
-            joy->center[ i ] = 127.0f;\r
-            joy->min   [ i ] = 0.0f;\r
-        }\r
-\r
-        joy->dead_band[ i ] = 0.0f;\r
-        joy->saturate[ i ] = 1.0f;\r
-    }\r
-#    endif\r
-#endif\r
-\r
-#if defined( __linux__ ) || TARGET_HOST_SOLARIS\r
-    /* Default for older Linux systems. */\r
-    joy->num_axes    =  2;\r
-    joy->num_buttons = 32;\r
-\r
-#    ifdef JS_NEW\r
-    for( i = 0; i < _JS_MAX_AXES; i++ )\r
-        joy->pJoystick.tmp_axes[ i ] = 0.0f;\r
-\r
-    joy->pJoystick.tmp_buttons = 0;\r
-#    endif\r
-\r
-    joy->pJoystick.fd = open( joy->pJoystick.fname, O_RDONLY );\r
-\r
-    joy->error =( joy->pJoystick.fd < 0 );\r
-\r
-    if( joy->error )\r
-        return;\r
-\r
-    /* Set the correct number of axes for the linux driver */\r
-#    ifdef JS_NEW\r
-    /* Melchior Franz's fixes for big-endian Linuxes since writing\r
-     *  to the upper byte of an uninitialized word doesn't work.\r
-     *  9 April 2003\r
-     */\r
-    ioctl( joy->pJoystick.fd, JSIOCGAXES, &u );\r
-    joy->num_axes = u;\r
-    ioctl( joy->pJoystick.fd, JSIOCGBUTTONS, &u );\r
-    joy->num_buttons = u;\r
-    ioctl( joy->pJoystick.fd, JSIOCGNAME( sizeof( joy->name ) ), joy->name );\r
-    fcntl( joy->pJoystick.fd, F_SETFL, O_NONBLOCK );\r
-#    endif\r
-\r
-    /*\r
-     * The Linux driver seems to return 512 for all axes\r
-     * when no stick is present - but there is a chance\r
-     * that could happen by accident - so it's gotta happen\r
-     * on both axes for at least 100 attempts.\r
-     *\r
-     * PWO: shouldn't be that done somehow wiser on the kernel level?\r
-     */\r
-#    ifndef JS_NEW\r
-    counter = 0;\r
-\r
-    do\r
-    {\r
-        fghJoystickRawRead( joy, NULL, joy->center );\r
-        counter++;\r
-    } while( !joy->error &&\r
-             counter < 100 &&\r
-             joy->center[ 0 ] == 512.0f &&\r
-             joy->center[ 1 ] == 512.0f );\r
-\r
-    if ( counter >= 100 )\r
-        joy->error = GL_TRUE;\r
-#    endif\r
-\r
-    for( i = 0; i < _JS_MAX_AXES; i++ )\r
-    {\r
-#    ifdef JS_NEW\r
-        joy->max   [ i ] =  32767.0f;\r
-        joy->center[ i ] =      0.0f;\r
-        joy->min   [ i ] = -32767.0f;\r
-#    else\r
-        joy->max[ i ] = joy->center[ i ] * 2.0f;\r
-        joy->min[ i ] = 0.0f;\r
-#    endif\r
-        joy->dead_band[ i ] = 0.0f;\r
-        joy->saturate [ i ] = 1.0f;\r
-    }\r
-#endif\r
-}\r
-\r
-\r
-void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident )\r
-{\r
-#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
-    fgJoystick[ ident ]->id = ident;\r
-    fgJoystick[ ident ]->error = GL_FALSE;\r
-\r
-    fgJoystick[ ident ]->pJoystick.os = calloc( 1, sizeof( struct os_specific_s ) );\r
-    memset( fgJoystick[ ident ]->pJoystick.os, 0, sizeof( struct os_specific_s ) );\r
-    if( ident < USB_IDENT_OFFSET )\r
-        fgJoystick[ ident ]->pJoystick.os->is_analog = 1;\r
-    if( fgJoystick[ ident ]->pJoystick.os->is_analog )\r
-        snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", AJSDEV, ident );\r
-    else\r
-        snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", UHIDDEV,\r
-                 ident - USB_IDENT_OFFSET );\r
-#elif defined( __linux__ )\r
-    fgJoystick[ ident ]->id = ident;\r
-    fgJoystick[ ident ]->error = GL_FALSE;\r
-\r
-    snprintf( fgJoystick[ident]->pJoystick.fname, sizeof(fgJoystick[ident]->pJoystick.fname), "/dev/input/js%d", ident );\r
-\r
-    if( access( fgJoystick[ ident ]->pJoystick.fname, F_OK ) != 0 )\r
-        snprintf( fgJoystick[ ident ]->pJoystick.fname, sizeof(fgJoystick[ ident ]->pJoystick.fname), "/dev/js%d", ident );\r
-#endif\r
-}\r
-\r
-\r
-void fgPlatformJoystickClose ( int ident )\r
-{\r
-#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
-    if( fgJoystick[ident]->pJoystick.os )\r
-    {\r
-        if( ! fgJoystick[ ident ]->error )\r
-            close( fgJoystick[ ident ]->pJoystick.os->fd );\r
-#ifdef HAVE_USB_JS\r
-        if( fgJoystick[ ident ]->pJoystick.os->hids )\r
-            free (fgJoystick[ ident ]->pJoystick.os->hids);\r
-        if( fgJoystick[ ident ]->pJoystick.os->hid_data_buf )\r
-            free( fgJoystick[ ident ]->pJoystick.os->hid_data_buf );\r
-#endif\r
-        free( fgJoystick[ident]->pJoystick.os );\r
-       }\r
-#endif\r
-\r
-    if( ! fgJoystick[ident]->error )\r
-         close( fgJoystick[ ident ]->pJoystick.fd );\r
-}\r
-#endif\r
-\r
-\r
-\r
 \r
 \r
 \r
index e69de29..a006301 100644 (file)
@@ -0,0 +1,465 @@
+/*\r
+ * freeglut_joystick_x11.c\r
+ *\r
+ * Joystick handling code\r
+ *\r
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.\r
+ * Written by Steve Baker, <sjbaker1@airmail.net>\r
+ * Copied for Platform code by Evan Felix <karcaw at gmail.com>\r
+ * Creation date: Thur Feb 2 2012\r
+ *\r
+ * Permission is hereby granted, free of charge, to any person obtaining a\r
+ * copy of this software and associated documentation files (the "Software"),\r
+ * to deal in the Software without restriction, including without limitation\r
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,\r
+ * and/or sell copies of the Software, and to permit persons to whom the\r
+ * Software is furnished to do so, subject to the following conditions:\r
+ *\r
+ * The above copyright notice and this permission notice shall be included\r
+ * in all copies or substantial portions of the Software.\r
+ *\r
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS\r
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL\r
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
+ */\r
+\r
+/*\r
+ * FreeBSD port by Stephen Montgomery-Smith <stephen@math.missouri.edu>\r
+ *\r
+ * Redone by John Fay 2/4/04 with another look from the PLIB "js" library.\r
+ *  Many thanks for Steve Baker for permission to pull from that library.\r
+ */\r
+\r
+#include <GL/freeglut.h>\r
+#include "freeglut_internal.h"\r
+#ifdef HAVE_SYS_PARAM_H\r
+#    include <sys/param.h>\r
+#endif\r
+\r
+\r
+/*this should be defined in a header file */\r
+#define MAX_NUM_JOYSTICKS  2   \r
+extern SFG_Joystick *fgJoystick [ MAX_NUM_JOYSTICKS ];\r
+\r
+void fgPlatformJoystickRawRead( SFG_Joystick* joy, int* buttons, float* axes )\r
+{\r
+    int status;\r
+\r
+    int i;\r
+\r
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__)\r
+    int len;\r
+\r
+    if ( joy->pJoystick.os->is_analog )\r
+    {\r
+        int status = read ( joy->pJoystick.os->fd, &joy->pJoystick.os->ajs, sizeof(joy->pJoystick.os->ajs) );\r
+        if ( status != sizeof(joy->pJoystick.os->ajs) ) {\r
+            perror ( joy->pJoystick.os->fname );\r
+            joy->error = GL_TRUE;\r
+            return;\r
+        }\r
+        if ( buttons != NULL )\r
+            *buttons = ( joy->pJoystick.os->ajs.b1 ? 1 : 0 ) | ( joy->pJoystick.os->ajs.b2 ? 2 : 0 );\r
+\r
+        if ( axes != NULL )\r
+        {\r
+            axes[0] = (float) joy->pJoystick.os->ajs.x;\r
+            axes[1] = (float) joy->pJoystick.os->ajs.y;\r
+        }\r
+\r
+        return;\r
+    }\r
+\r
+#  ifdef HAVE_USB_JS\r
+    while ( ( len = read ( joy->pJoystick.os->fd, joy->pJoystick.os->hid_data_buf, joy->pJoystick.os->hid_dlen ) ) == joy->pJoystick.os->hid_dlen )\r
+    {\r
+        struct hid_item *h;\r
+\r
+        for  ( h = joy->pJoystick.os->hids; h; h = h->next )\r
+        {\r
+            int d = hid_get_data ( joy->pJoystick.os->hid_data_buf, h );\r
+\r
+            int page = HID_PAGE ( h->usage );\r
+            int usage = HID_USAGE ( h->usage );\r
+\r
+            if ( page == HUP_GENERIC_DESKTOP )\r
+            {\r
+                int i;\r
+                for ( i = 0; i < joy->num_axes; i++ )\r
+                    if (joy->pJoystick.os->axes_usage[i] == usage)\r
+                    {\r
+                        if (usage == HUG_HAT_SWITCH)\r
+                        {\r
+                            if (d < 0 || d > 8)\r
+                                d = 0;  /* safety */\r
+                            joy->pJoystick.os->cache_axes[i] = (float)hatmap_x[d];\r
+                            joy->pJoystick.os->cache_axes[i + 1] = (float)hatmap_y[d];\r
+                        }\r
+                        else\r
+                        {\r
+                            joy->pJoystick.os->cache_axes[i] = (float)d;\r
+                        }\r
+                        break;\r
+                    }\r
+            }\r
+            else if (page == HUP_BUTTON)\r
+            {\r
+               if (usage > 0 && usage < _JS_MAX_BUTTONS + 1)\r
+               {\r
+                   if (d)\r
+                       joy->pJoystick.os->cache_buttons |=  (1 << ( usage - 1 ));\r
+                   else\r
+                       joy->pJoystick.os->cache_buttons &= ~(1 << ( usage - 1 ));\r
+               }\r
+            }\r
+        }\r
+    }\r
+#    ifdef HAVE_ERRNO_H\r
+    if ( len < 0 && errno != EAGAIN )\r
+#    else\r
+    if ( len < 0 )\r
+#    endif\r
+    {\r
+        perror( joy->pJoystick.os->fname );\r
+        joy->error = 1;\r
+    }\r
+    if ( buttons != NULL ) *buttons = joy->pJoystick.os->cache_buttons;\r
+    if ( axes    != NULL )\r
+        memcpy ( axes, joy->pJoystick.os->cache_axes, sizeof(float) * joy->num_axes );\r
+#  endif\r
+#endif\r
+\r
+#ifdef JS_NEW\r
+\r
+    while ( 1 )\r
+    {\r
+        status = read ( joy->pJoystick.fd, &joy->pJoystick.js, sizeof(struct js_event) );\r
+\r
+        if ( status != sizeof( struct js_event ) )\r
+        {\r
+#  ifdef HAVE_ERRNO_H\r
+            if ( errno == EAGAIN )\r
+            {\r
+                /* Use the old values */\r
+                if ( buttons )\r
+                    *buttons = joy->pJoystick.tmp_buttons;\r
+                if ( axes )\r
+                    memcpy( axes, joy->pJoystick.tmp_axes,\r
+                            sizeof( float ) * joy->num_axes );\r
+                return;\r
+            }\r
+#  endif\r
+\r
+            fgWarning ( "%s", joy->pJoystick.fname );\r
+            joy->error = GL_TRUE;\r
+            return;\r
+        }\r
+\r
+        switch ( joy->pJoystick.js.type & ~JS_EVENT_INIT )\r
+        {\r
+        case JS_EVENT_BUTTON:\r
+            if( joy->pJoystick.js.value == 0 ) /* clear the flag */\r
+                joy->pJoystick.tmp_buttons &= ~( 1 << joy->pJoystick.js.number );\r
+            else\r
+                joy->pJoystick.tmp_buttons |= ( 1 << joy->pJoystick.js.number );\r
+            break;\r
+\r
+        case JS_EVENT_AXIS:\r
+            if ( joy->pJoystick.js.number < joy->num_axes )\r
+            {\r
+                joy->pJoystick.tmp_axes[ joy->pJoystick.js.number ] = ( float )joy->pJoystick.js.value;\r
+\r
+                if( axes )\r
+                    memcpy( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );\r
+            }\r
+            break;\r
+\r
+        default:\r
+            fgWarning ( "PLIB_JS: Unrecognised /dev/js return!?!" );\r
+\r
+            /* use the old values */\r
+\r
+            if ( buttons != NULL ) *buttons = joy->pJoystick.tmp_buttons;\r
+            if ( axes    != NULL )\r
+                memcpy ( axes, joy->pJoystick.tmp_axes, sizeof(float) * joy->num_axes );\r
+\r
+            return;\r
+        }\r
+\r
+        if( buttons )\r
+            *buttons = joy->pJoystick.tmp_buttons;\r
+    }\r
+#else\r
+\r
+    status = read( joy->pJoystick.fd, &joy->pJoystick.js, JS_RETURN );\r
+\r
+    if ( status != JS_RETURN )\r
+    {\r
+        fgWarning( "%s", joy->pJoystick.fname );\r
+        joy->error = GL_TRUE;\r
+        return;\r
+    }\r
+\r
+    if ( buttons )\r
+#    if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
+        *buttons = ( joy->pJoystick.js.b1 ? 1 : 0 ) | ( joy->pJoystick.js.b2 ? 2 : 0 );  /* XXX Should not be here -- BSD is handled earlier */\r
+#    else\r
+        *buttons = joy->pJoystick.js.buttons;\r
+#    endif\r
+\r
+    if ( axes )\r
+    {\r
+        axes[ 0 ] = (float) joy->pJoystick.js.x;\r
+        axes[ 1 ] = (float) joy->pJoystick.js.y;\r
+    }\r
+#endif\r
+}\r
+\r
+\r
+void fgPlatformJoystickOpen( SFG_Joystick* joy )\r
+{\r
+#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
+       int i = 0;\r
+       char *cp;\r
+#endif\r
+#ifdef JS_NEW\r
+       unsigned char u;\r
+       int i=0;\r
+#else\r
+#  if defined( __linux__ ) || TARGET_HOST_SOLARIS\r
+       int i = 0;\r
+    int counter = 0;\r
+#  endif\r
+#endif\r
+\r
+#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
+    for( i = 0; i < _JS_MAX_AXES; i++ )\r
+        joy->pJoystick.os->cache_axes[ i ] = 0.0f;\r
+\r
+    joy->pJoystick.os->cache_buttons = 0;\r
+\r
+    joy->pJoystick.os->fd = open( joy->pJoystick.os->fname, O_RDONLY | O_NONBLOCK);\r
+\r
+#ifdef HAVE_ERRNO_H\r
+    if( joy->pJoystick.os->fd < 0 && errno == EACCES )\r
+        fgWarning ( "%s exists but is not readable by you", joy->pJoystick.os->fname );\r
+#endif\r
+\r
+    joy->error =( joy->pJoystick.os->fd < 0 );\r
+\r
+    if( joy->error )\r
+        return;\r
+\r
+    joy->num_axes = 0;\r
+    joy->num_buttons = 0;\r
+    if( joy->pJoystick.os->is_analog )\r
+    {\r
+        FILE *joyfile;\r
+        char joyfname[ 1024 ];\r
+        int noargs, in_no_axes;\r
+\r
+        float axes [ _JS_MAX_AXES ];\r
+        int buttons[ _JS_MAX_AXES ];\r
+\r
+        joy->num_axes    =  2;\r
+        joy->num_buttons = 32;\r
+\r
+        fghJoystickRawRead( joy, buttons, axes );\r
+        joy->error = axes[ 0 ] < -1000000000.0f;\r
+        if( joy->error )\r
+            return;\r
+\r
+        snprintf( joyfname, sizeof(joyfname), "%s/.joy%drc", getenv( "HOME" ), joy->id );\r
+\r
+        joyfile = fopen( joyfname, "r" );\r
+        joy->error =( joyfile == NULL );\r
+        if( joy->error )\r
+            return;\r
+\r
+        noargs = fscanf( joyfile, "%d%f%f%f%f%f%f", &in_no_axes,\r
+                         &joy->min[ 0 ], &joy->center[ 0 ], &joy->max[ 0 ],\r
+                         &joy->min[ 1 ], &joy->center[ 1 ], &joy->max[ 1 ] );\r
+        joy->error = noargs != 7 || in_no_axes != _JS_MAX_AXES;\r
+        fclose( joyfile );\r
+        if( joy->error )\r
+            return;\r
+\r
+        for( i = 0; i < _JS_MAX_AXES; i++ )\r
+        {\r
+            joy->dead_band[ i ] = 0.0f;\r
+            joy->saturate [ i ] = 1.0f;\r
+        }\r
+\r
+        return;    /* End of analog code */\r
+    }\r
+\r
+#    ifdef HAVE_USB_JS\r
+    if( ! fghJoystickInitializeHID( joy->pJoystick.os, &joy->num_axes,\r
+                                    &joy->num_buttons ) )\r
+    {\r
+        close( joy->pJoystick.os->fd );\r
+        joy->error = GL_TRUE;\r
+        return;\r
+    }\r
+\r
+    cp = strrchr( joy->pJoystick.os->fname, '/' );\r
+    if( cp )\r
+    {\r
+        if( fghJoystickFindUSBdev( &cp[1], joy->name, sizeof( joy->name ) ) ==\r
+            0 )\r
+            strcpy( joy->name, &cp[1] );\r
+    }\r
+\r
+    if( joy->num_axes > _JS_MAX_AXES )\r
+        joy->num_axes = _JS_MAX_AXES;\r
+\r
+    for( i = 0; i < _JS_MAX_AXES; i++ )\r
+    {\r
+        /* We really should get this from the HID, but that data seems\r
+         * to be quite unreliable for analog-to-USB converters. Punt for\r
+         * now.\r
+         */\r
+        if( joy->pJoystick.os->axes_usage[ i ] == HUG_HAT_SWITCH )\r
+        {\r
+            joy->max   [ i ] = 1.0f;\r
+            joy->center[ i ] = 0.0f;\r
+            joy->min   [ i ] = -1.0f;\r
+        }\r
+        else\r
+        {\r
+            joy->max   [ i ] = 255.0f;\r
+            joy->center[ i ] = 127.0f;\r
+            joy->min   [ i ] = 0.0f;\r
+        }\r
+\r
+        joy->dead_band[ i ] = 0.0f;\r
+        joy->saturate[ i ] = 1.0f;\r
+    }\r
+#    endif\r
+#endif\r
+\r
+#if defined( __linux__ ) || TARGET_HOST_SOLARIS\r
+    /* Default for older Linux systems. */\r
+    joy->num_axes    =  2;\r
+    joy->num_buttons = 32;\r
+\r
+#    ifdef JS_NEW\r
+    for( i = 0; i < _JS_MAX_AXES; i++ )\r
+        joy->pJoystick.tmp_axes[ i ] = 0.0f;\r
+\r
+    joy->pJoystick.tmp_buttons = 0;\r
+#    endif\r
+\r
+    joy->pJoystick.fd = open( joy->pJoystick.fname, O_RDONLY );\r
+\r
+    joy->error =( joy->pJoystick.fd < 0 );\r
+\r
+    if( joy->error )\r
+        return;\r
+\r
+    /* Set the correct number of axes for the linux driver */\r
+#    ifdef JS_NEW\r
+    /* Melchior Franz's fixes for big-endian Linuxes since writing\r
+     *  to the upper byte of an uninitialized word doesn't work.\r
+     *  9 April 2003\r
+     */\r
+    ioctl( joy->pJoystick.fd, JSIOCGAXES, &u );\r
+    joy->num_axes = u;\r
+    ioctl( joy->pJoystick.fd, JSIOCGBUTTONS, &u );\r
+    joy->num_buttons = u;\r
+    ioctl( joy->pJoystick.fd, JSIOCGNAME( sizeof( joy->name ) ), joy->name );\r
+    fcntl( joy->pJoystick.fd, F_SETFL, O_NONBLOCK );\r
+#    endif\r
+\r
+    /*\r
+     * The Linux driver seems to return 512 for all axes\r
+     * when no stick is present - but there is a chance\r
+     * that could happen by accident - so it's gotta happen\r
+     * on both axes for at least 100 attempts.\r
+     *\r
+     * PWO: shouldn't be that done somehow wiser on the kernel level?\r
+     */\r
+#    ifndef JS_NEW\r
+    counter = 0;\r
+\r
+    do\r
+    {\r
+        fghJoystickRawRead( joy, NULL, joy->center );\r
+        counter++;\r
+    } while( !joy->error &&\r
+             counter < 100 &&\r
+             joy->center[ 0 ] == 512.0f &&\r
+             joy->center[ 1 ] == 512.0f );\r
+\r
+    if ( counter >= 100 )\r
+        joy->error = GL_TRUE;\r
+#    endif\r
+\r
+    for( i = 0; i < _JS_MAX_AXES; i++ )\r
+    {\r
+#    ifdef JS_NEW\r
+        joy->max   [ i ] =  32767.0f;\r
+        joy->center[ i ] =      0.0f;\r
+        joy->min   [ i ] = -32767.0f;\r
+#    else\r
+        joy->max[ i ] = joy->center[ i ] * 2.0f;\r
+        joy->min[ i ] = 0.0f;\r
+#    endif\r
+        joy->dead_band[ i ] = 0.0f;\r
+        joy->saturate [ i ] = 1.0f;\r
+    }\r
+#endif\r
+}\r
+\r
+\r
+void fgPlatformJoystickInit( SFG_Joystick *fgJoystick[], int ident )\r
+{\r
+#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
+    fgJoystick[ ident ]->id = ident;\r
+    fgJoystick[ ident ]->error = GL_FALSE;\r
+\r
+    fgJoystick[ ident ]->pJoystick.os = calloc( 1, sizeof( struct os_specific_s ) );\r
+    memset( fgJoystick[ ident ]->pJoystick.os, 0, sizeof( struct os_specific_s ) );\r
+    if( ident < USB_IDENT_OFFSET )\r
+        fgJoystick[ ident ]->pJoystick.os->is_analog = 1;\r
+    if( fgJoystick[ ident ]->pJoystick.os->is_analog )\r
+        snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", AJSDEV, ident );\r
+    else\r
+        snprintf( fgJoystick[ ident ]->pJoystick.os->fname, sizeof(fgJoystick[ ident ]->pJoystick.os->fname), "%s%d", UHIDDEV,\r
+                 ident - USB_IDENT_OFFSET );\r
+#elif defined( __linux__ )\r
+    fgJoystick[ ident ]->id = ident;\r
+    fgJoystick[ ident ]->error = GL_FALSE;\r
+\r
+    snprintf( fgJoystick[ident]->pJoystick.fname, sizeof(fgJoystick[ident]->pJoystick.fname), "/dev/input/js%d", ident );\r
+\r
+    if( access( fgJoystick[ ident ]->pJoystick.fname, F_OK ) != 0 )\r
+        snprintf( fgJoystick[ ident ]->pJoystick.fname, sizeof(fgJoystick[ ident ]->pJoystick.fname), "/dev/js%d", ident );\r
+#endif\r
+}\r
+\r
+\r
+void fgPlatformJoystickClose ( int ident )\r
+{\r
+#if defined( __FreeBSD__ ) || defined(__FreeBSD_kernel__) || defined( __NetBSD__ )\r
+    if( fgJoystick[ident]->pJoystick.os )\r
+    {\r
+        if( ! fgJoystick[ ident ]->error )\r
+            close( fgJoystick[ ident ]->pJoystick.os->fd );\r
+#ifdef HAVE_USB_JS\r
+        if( fgJoystick[ ident ]->pJoystick.os->hids )\r
+            free (fgJoystick[ ident ]->pJoystick.os->hids);\r
+        if( fgJoystick[ ident ]->pJoystick.os->hid_data_buf )\r
+            free( fgJoystick[ ident ]->pJoystick.os->hid_data_buf );\r
+#endif\r
+        free( fgJoystick[ident]->pJoystick.os );\r
+       }\r
+#endif\r
+\r
+    if( ! fgJoystick[ident]->error )\r
+         close( fgJoystick[ ident ]->pJoystick.fd );\r
+}\r
+\r