SDL joystick stuff mostly done

This commit is contained in:
Bradley Bell 2002-03-05 12:13:33 +00:00
parent 79c78ad2f8
commit 29e82fd4aa

View file

@ -1,12 +1,15 @@
/*
* $Source: /cvs/cvsroot/d2x/arch/sdl/joy.c,v $
* $Revision: 1.2 $
* $Revision: 1.3 $
* $Author: bradleyb $
* $Date: 2001-12-03 02:43:02 $
* $Date: 2002-03-05 12:13:33 $
*
* SDL joystick support
*
* $Log: not supported by cvs2svn $
* Revision 1.2 2001/12/03 02:43:02 bradleyb
* lots of makefile fixes, and sdl joystick stuff
*
* Revision 1.1 2001/10/24 09:25:05 bradleyb
* Moved input stuff to arch subdirs, as in d1x.
*
@ -16,6 +19,8 @@
*
*/
#define JOYSTICK_DEBUG
#ifdef HAVE_CONFIG_H
#include <conf.h>
#endif
@ -26,6 +31,7 @@
#include "error.h"
#include "timer.h"
#include "console.h"
#include "event.h"
#define MAX_JOYSTICKS 16
#define MAX_AXES 32
@ -36,18 +42,26 @@
char joy_present = 0;
int num_joysticks = 0;
int joy_deadzone = 0;
struct joybutton {
int state;
fix time_went_down;
fix time_held_down;
int num_downs;
int num_ups;
};
struct joyaxis {
int value;
int min_val;
int center_val;
int max_val;
};
static struct joyinfo {
int n_axes;
int n_buttons;
int axes[MAX_AXES];
struct joyaxis axes[MAX_AXES];
struct joybutton buttons[MAX_BUTTONS];
} Joystick;
@ -74,9 +88,6 @@ void joy_button_handler(SDL_JoyButtonEvent *jbe)
Joystick.buttons[button].num_downs++;
break;
case SDL_JOYBUTTONUP:
Joystick.buttons[button].time_held_down
+= timer_get_fixed_seconds()
- Joystick.buttons[button].time_went_down;
Joystick.buttons[button].num_ups++;
break;
}
@ -88,7 +99,7 @@ void joy_axis_handler(SDL_JoyAxisEvent *jae)
axis = SDL_Joysticks[jae->which].axis_map[jae->axis];
Joystick.axes[axis] = jae->value;
Joystick.axes[axis].value = jae->value;
}
@ -102,9 +113,9 @@ int joy_init()
n = SDL_NumJoysticks();
con_printf(CON_VERBOSE, "Joystick: found %d joysticks\n", n);
con_printf(CON_VERBOSE, "sdl-joystick: found %d joysticks\n", n);
for (i = 0; i < n; i++) {
con_printf(CON_VERBOSE, "Joystick %d: %s\n", i, SDL_JoystickName(i));
con_printf(CON_VERBOSE, "sdl-joystick %d: %s\n", i, SDL_JoystickName(i));
SDL_Joysticks[num_joysticks].handle = SDL_JoystickOpen(i);
if (SDL_Joysticks[num_joysticks].handle) {
joy_present = 1;
@ -112,15 +123,17 @@ int joy_init()
= SDL_JoystickNumAxes(SDL_Joysticks[num_joysticks].handle);
SDL_Joysticks[num_joysticks].n_buttons
= SDL_JoystickNumButtons(SDL_Joysticks[num_joysticks].handle);
con_printf(CON_VERBOSE, "Joystick: %d axes\n", SDL_Joysticks[num_joysticks].n_axes);
con_printf(CON_VERBOSE, "Joystick: %d buttons\n", SDL_Joysticks[num_joysticks].n_buttons);
con_printf(CON_VERBOSE, "sdl-joystick: %d axes\n", SDL_Joysticks[num_joysticks].n_axes);
con_printf(CON_VERBOSE, "sdl-joystick: %d buttons\n", SDL_Joysticks[num_joysticks].n_buttons);
for (j=0; j < SDL_Joysticks[num_joysticks].n_axes; j++)
SDL_Joysticks[num_joysticks].axis_map[j] = Joystick.n_axes++;
for (j=0; j < SDL_Joysticks[num_joysticks].n_buttons; j++)
SDL_Joysticks[num_joysticks].button_map[j] = Joystick.n_buttons++;
num_joysticks++;
} else
con_printf(CON_VERBOSE, "Joystick: initialization failed!\n");
con_printf(CON_VERBOSE, "sdl-joystick: initialization failed!\n");
con_printf(CON_VERBOSE, "sdl-joystick: %d axes (total)\n", Joystick.n_axes);
con_printf(CON_VERBOSE, "sdl-joystick: %d buttons (total)\n", Joystick.n_buttons);
}
return joy_present;
@ -134,55 +147,175 @@ void joy_close()
void joy_get_pos(int *x, int *y)
{
*x = Joystick.axes[0] << 8;
*y = Joystick.axes[1] << 8;
int axis[MAX_AXES];
if (!num_joysticks) {
*x=*y=0;
return;
}
joystick_read_raw_axis (JOY_ALL_AXIS, axis);
*x = joy_get_scaled_reading( axis[0], 0 );
*y = joy_get_scaled_reading( axis[1], 1 );
}
int joy_get_btns()
{
#if 0 // This is never used?
int i, buttons = 0;
for (i=0; i++; i<buttons) {
switch (Joystick.buttons[i].state) {
case SDL_PRESSED:
buttons |= 1<<i;
break;
case SDL_RELEASED:
break;
}
}
return buttons;
#else
return 0;
#endif
}
int joy_get_button_down_cnt( int btn )
{
return 0;
int num_downs;
if (!num_joysticks)
return 0;
event_poll();
num_downs = Joystick.buttons[btn].num_downs;
Joystick.buttons[btn].num_downs = 0;
return num_downs;
}
fix joy_get_button_down_time(int btn)
{
fix time;
time = Joystick.buttons[btn].time_held_down;
Joystick.buttons[btn].time_held_down = 0;
if (!num_joysticks)
return 0;
event_poll();
switch (Joystick.buttons[btn].state) {
case SDL_PRESSED:
time = timer_get_fixed_seconds() - Joystick.buttons[btn].time_went_down;
Joystick.buttons[btn].time_went_down = timer_get_fixed_seconds();
break;
case SDL_RELEASED:
time = 0;
break;
}
return time;
}
ubyte joystick_read_raw_axis( ubyte mask, int * axis )
{
int i;
if (!num_joysticks)
return 0;
event_poll();
for (i = 0; i <= JOY_NUM_AXES; i++) {
axis[i] = Joystick.axes[i].value;
#ifdef JOYSTICK_DEBUG
printf("sdl-joystick: axis %d: %d\n", i, axis[i]);
#endif
}
return 0;
}
void joy_flush()
{
int i;
if (!num_joysticks)
return;
for (i = 0; i < Joystick.n_buttons; i++) {
Joystick.buttons[i].time_went_down = 0;
Joystick.buttons[i].num_downs = 0;
}
}
int joy_get_button_state( int btn )
{
return 0;
if (!num_joysticks)
return 0;
if(btn >= Joystick.n_buttons)
return 0;
event_poll();
return Joystick.buttons[btn].state;
}
void joy_get_cal_vals(int *axis_min, int *axis_center, int *axis_max)
{
int i;
for (i = 0; i < JOY_NUM_AXES; i++) {
axis_center[i] = Joystick.axes[i].center_val;
axis_min[i] = Joystick.axes[i].min_val;
axis_max[i] = Joystick.axes[i].max_val;
}
}
void joy_set_cal_vals(int *axis_min, int *axis_center, int *axis_max)
{
int i;
for (i = 0; i < JOY_NUM_AXES; i++) {
Joystick.axes[i].center_val = axis_center[i];
Joystick.axes[i].min_val = axis_min[i];
Joystick.axes[i].max_val = axis_max[i];
}
}
int joy_get_scaled_reading( int raw, int axn )
int joy_get_scaled_reading( int raw, int axis_num )
{
return 0;
int d, x;
raw -= Joystick.axes[axis_num].center_val;
if (raw < 0)
d = Joystick.axes[axis_num].center_val - Joystick.axes[axis_num].min_val;
else if (raw > 0)
d = Joystick.axes[axis_num].max_val - Joystick.axes[axis_num].center_val;
else
d = 0;
if (d)
x = ((raw << 7) / d);
else
x = 0;
if ( x < -128 )
x = -128;
if ( x > 127 )
x = 127;
d = (joy_deadzone) * 6;
if ((x > (-1*d)) && (x < d))
x = 0;
#ifdef JOYSTICK_DEBUG
printf("scaled: axis %d: %d\n", axis_num, x);
#endif
return x;
}
void joy_set_slow_reading( int flag )