diff options
Diffstat (limited to 'rawhid/olaf/rawjoystick.c')
| -rw-r--r-- | rawhid/olaf/rawjoystick.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/rawhid/olaf/rawjoystick.c b/rawhid/olaf/rawjoystick.c new file mode 100644 index 0000000..7dde30b --- /dev/null +++ b/rawhid/olaf/rawjoystick.c @@ -0,0 +1,252 @@ +/* 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 1.1 2006-01-17 05:14:01 eighthave Exp $
+ */
+static char *version = "$Revision: 1.1 $";
+
+#include <SDL/SDL.h>
+#include <m_pd.h>
+#include "m_imp.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;
+}
+
+/* read the joystick, called through clock */
+static void *rawjoystick_read(t_rawjoystick *x) {
+ SDL_Event event;
+
+ DEBUG(post("rawjoystick_READ"));
+
+ if ( ! SDL_JoystickOpened(x->x_devnum) ) {
+ return 0;
+ }
+
+ DEBUG(post("Joystick read: %s",SDL_JoystickName(x->x_devnum)));
+
+ if ( SDL_PollEvent(&event) ) {
+ switch (event.type) {
+ case SDL_JOYAXISMOTION:
+ outlet_float (x->x_axis_out[event.jaxis.axis], (float)event.jaxis.value / 32767.0);
+ break;
+ case SDL_JOYHATMOTION:
+ break;
+ case SDL_JOYBUTTONDOWN:
+ outlet_float (x->x_button_val_out, 1);
+ outlet_float (x->x_button_num_out, (float)event.jbutton.button);
+ break;
+ case SDL_JOYBUTTONUP:
+ outlet_float (x->x_button_val_out, 0);
+ outlet_float (x->x_button_num_out, (float)event.jbutton.button);
+ break;
+ default:
+ DEBUG(post("Unhandled event."));
+ }
+ }
+ if(x->started)clock_delay(x->x_clock, x->x_delaytime);
+ return NULL;
+}
+
+/* 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 ) ) {
+ x->started = 1;
+ clock_delay(x->x_clock, 0);
+ }
+}
+
+
+// DONE
+void rawjoystick_stop(t_rawjoystick* x) {
+ DEBUG(post("rawjoystick_STOP");)
+
+ if ( ( SDL_JoystickOpened(x->x_devnum) ) && ( x->started ) ) {
+ x->started = 0;
+ clock_unset(x->x_clock);
+ }
+}
+
+/* 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();
+ clock_free(x->x_clock);
+}
+
+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;
+ x->x_delaytime = 10;
+
+ x->x_clock = clock_new(x, (t_method)rawjoystick_read);
+
+ /* INIT SDL using joystick layer */
+ /* Note: Video is required to start Event Loop !! */
+ if ( SDL_Init(SDL_INIT_VIDEO|SDL_INIT_JOYSTICK) == -1 ) {
+ post("Could not initialize SDL: %s.\n", SDL_GetError());
+ // exit(-1);
+ return (0); /* changed by olafmatt */
+ }
+
+ 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_DEFFLOAT,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);
+}
+
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