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/* Copyright 2003 Hans-Christoph Steiner <hans@eds.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
* $Id: rawjoystick.c,v 1.3 2003-04-22 21:46:22 eighthave Exp $
*/
static char *version = "$Revision: 1.3 $";
#include <m_imp.h>
#ifdef NT
#pragma warning( disable : 4244 )
#pragma warning( disable : 4305 )
#endif
#include <SDL/SDL.h>
#include <sys/stat.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <termios.h>
/*#define DEBUG(x) */
#define DEBUG(x) x
#define RAWJOYSTICK_AXES 6
#define RAWJOYSTICK_BUTTONS 9
/*------------------------------------------------------------------------------
* CLASS DEF
*/
static t_class *rawjoystick_class;
typedef struct _rawjoystick {
t_object x_obj;
SDL_Joystick *x_joystick;
t_int x_devnum;
int read_ok;
int started;
t_outlet *x_axis_out[RAWJOYSTICK_AXES];
t_outlet *x_button_num_out;
t_outlet *x_button_val_out;
t_clock *x_clock;
double x_delaytime;
int x_buttons;
int x_hats;
int x_axes;
} t_rawjoystick;
/*------------------------------------------------------------------------------
*/
static int rawjoystick_close(t_rawjoystick *x) {
DEBUG(post("rawjoystick_CLOSE"));
if ( SDL_JoystickOpened(x->x_devnum) ) {
SDL_JoystickClose(x->x_joystick);
return 1;
}
else {
return 0;
}
}
static int rawjoystick_open(t_rawjoystick *x) {
rawjoystick_close(x);
DEBUG(post("rawjoystick_OPEN"));
/* open device */
SDL_JoystickEventState(SDL_ENABLE);
x->x_joystick = SDL_JoystickOpen(x->x_devnum);
/* test if device open */
/* get name of device */
if ( SDL_JoystickOpened(x->x_devnum) ) {
post ("Configuring %s",SDL_JoystickName(x->x_devnum));
}
else {
return 0;
}
x->x_axes = SDL_JoystickNumAxes(x->x_joystick);
x->x_hats = SDL_JoystickNumHats(x->x_joystick);
x->x_buttons = SDL_JoystickNumButtons(x->x_joystick);
post (" device has %i axes, %i hats, and %i buttons.\n",x->x_axes,x->x_hats,x->x_buttons);
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
post ("This object is under development! The interface could change at anytime!");
post ("As I write cross-platform versions, the interface might have to change.");
post ("WARNING * WARNING * WARNING * WARNING * WARNING * WARNING * WARNING");
return 1;
}
static int rawjoystick_read(t_rawjoystick *x,int fd) {
SDL_Event event;
DEBUG(post("rawjoystick_READ"));
if ( ! SDL_JoystickOpened(x->x_devnum) ) {
return 0;
}
post("Joystick read: %s",SDL_JoystickName(x->x_devnum));
if ( SDL_PollEvent(&event) ) {
post("SDL_Event.type: %i",event.type);
post("SDL_JoyAxisEvent.value: %i",event.jaxis.value);
post("SDL_JoyButtonEvent.value: %i",event.jbutton.state);
switch (event.type) {
case SDL_JOYAXISMOTION:
outlet_float (x->x_axis_out[event.jaxis.axis], event.jaxis.value);
break;
case SDL_JOYHATMOTION:
break;
case SDL_JOYBUTTONDOWN:
outlet_float (x->x_button_val_out, 1);
outlet_float (x->x_button_num_out, event.jaxis.axis);
break;
case SDL_JOYBUTTONUP:
outlet_float (x->x_button_val_out, 0);
outlet_float (x->x_button_num_out, event.jaxis.axis);
break;
default:
DEBUG(post("Unhandled event."));
}
}
return 1;
}
/* Actions */
static void rawjoystick_bang(t_rawjoystick* x) {
DEBUG(post("rawjoystick_bang"));
}
static void rawjoystick_float(t_rawjoystick* x) {
DEBUG(post("rawjoystick_float"));
}
// DONE
void rawjoystick_start(t_rawjoystick* x)
{
DEBUG(post("rawjoystick_START"));
if ( ( SDL_JoystickOpened(x->x_devnum) ) && ( ! x->started ) ) {
sys_addpollfn(x->x_devnum, (t_fdpollfn)rawjoystick_read, x);
x->started = 1;
}
}
// DONE
void rawjoystick_stop(t_rawjoystick* x) {
DEBUG(post("rawjoystick_STOP");)
if ( ( SDL_JoystickOpened(x->x_devnum) ) && ( x->started ) ) {
sys_rmpollfn(x->x_devnum);
x->started = 0;
}
}
/* Misc setup functions */
static void rawjoystick_free(t_rawjoystick* x) {
DEBUG(post("rawjoystick_free"));
rawjoystick_stop(x);
if ( SDL_JoystickOpened(x->x_devnum))
SDL_JoystickClose(x->x_joystick);
SDL_Quit();
}
static void *rawjoystick_new(t_float argument) {
int i,joystickNumber;
t_rawjoystick *x = (t_rawjoystick *)pd_new(rawjoystick_class);
DEBUG(post("rawjoystick_NEW"));
post("rawHID objects, %s", version);
post(" by Hans-Christoph Steiner <hans@eds.org>");
/* init vars */
x->x_devnum = 0;
x->read_ok = 1;
x->started = 0;
/* INIT SDL using joystick layer */
if ( SDL_Init( SDL_INIT_JOYSTICK ) == -1 ) {
post("Could not initialize SDL: %s.\n", SDL_GetError());
exit(-1);
}
post("%i joysticks were found:", SDL_NumJoysticks() );
for( i=0; i < SDL_NumJoysticks(); i++ ) {
post(" %s", SDL_JoystickName(i));
}
joystickNumber = (int)argument;
if ( (joystickNumber >= 0) && (joystickNumber < SDL_NumJoysticks() ) )
x->x_devnum = joystickNumber;
else
post("Joystick %i does not exist!",joystickNumber);
/* create outlets for each axis */
for (i = 0; i < RAWJOYSTICK_AXES; i++)
x->x_axis_out[i] = outlet_new(&x->x_obj, &s_float);
/* create outlets for buttons */
x->x_button_num_out = outlet_new(&x->x_obj, &s_float);
x->x_button_val_out = outlet_new(&x->x_obj, &s_float);
/* Open the device and save settings */
if ( ! rawjoystick_open(x) ) return x;
return (x);
}
void rawjoystick_setup(void)
{
DEBUG(post("rawjoystick_setup");)
rawjoystick_class = class_new(gensym("rawjoystick"),
(t_newmethod)rawjoystick_new,
(t_method)rawjoystick_free,
sizeof(t_rawjoystick),0,A_DEFSYM,0);
/* add inlet datatype methods */
class_addfloat(rawjoystick_class,(t_method) rawjoystick_float);
class_addbang(rawjoystick_class,(t_method) rawjoystick_bang);
/* add inlet message methods */
class_addmethod(rawjoystick_class,(t_method) rawjoystick_open,gensym("open"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_close,gensym("close"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_start,gensym("start"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_stop,gensym("stop"),0);
class_addmethod(rawjoystick_class,(t_method) rawjoystick_read,gensym("read"),0);
}
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