Apple-2-Tools
/
apple2ix
mirror of https://github.com/mauiaaron/apple2.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
apple2ix/src/joystick.c

496 lines
14 KiB
C
Raw Blame History

/*
* Apple // emulator for Linux: Joystick calibration routines
*
* Copyright 1994 Alexander Jean-Claude Bottema
* Copyright 1995 Stephen Lee
* Copyright 1997, 1998 Aaron Culliney
* Copyright 1998, 1999, 2000 Michael Deutschmann
*
* This software package is subject to the GNU General Public License
* version 2 or later (your choice) as published by the Free Software
* Foundation.
*
* THERE ARE NO WARRANTIES WHATSOEVER.
*
*/
#include "common.h"
#ifdef LINUX_JOYSTICK
#include <linux/joystick.h>
#endif
/* parameters for generic and keyboard-simulated joysticks */
short joy_x = HALF_JOY_RANGE;
short joy_y = HALF_JOY_RANGE;
unsigned char joy_button0 = 0;
unsigned char joy_button1 = 0;
unsigned char joy_button2 = 0; // unused?
#ifdef KEYPAD_JOYSTICK
short joy_step = 1;
uint8_t auto_recenter = 0;
#endif
#ifdef LINUX_JOYSTICK
int js_center_x;
int js_center_y;
int js_max_x;
int js_max_y;
int js_min_x;
int js_min_y;
int js_fd = -1; /* joystick file descriptor */
struct JS_DATA_TYPE js; /* joystick data struct */
int raw_js_x;
int raw_js_y;
int js_lowerrange_x,
js_upperrange_x,
js_lowerrange_y,
js_upperrange_y,
js_offset_x,
js_offset_y;
float
js_adjustlow_x,
js_adjustlow_y,
js_adjusthigh_x,
js_adjusthigh_y;
/* -------------------------------------------------------------------------
c_open_pc_joystick() - opens joystick device
------------------------------------------------------------------------- */
static void c_calculate_pc_joystick_parms();
int c_open_pc_joystick()
{
if (js_fd < 0)
{
if ((js_fd = open("/dev/js0", O_RDONLY)) < 0)
{
/* try again with another name */
if ((js_fd = open("/dev/joystick", O_RDONLY)) < 0)
{
if ((js_fd = open("/dev/input/js0", O_RDONLY)) < 0)
{
return 1; /* problem */
}
}
}
}
c_calculate_pc_joystick_parms();
return 0; /* no problem */
}
/* -------------------------------------------------------------------------
c_close_pc_joystick() - closes joystick device
------------------------------------------------------------------------- */
void c_close_pc_joystick()
{
if (js_fd < 0)
{
return;
}
close(js_fd);
js_fd = -1;
}
/* -------------------------------------------------------------------------
* c_calculate_pc_joystick_parms() - calculates parameters for joystick
* device. assumes that device extremes have already been determined.
* ------------------------------------------------------------------------- */
static void c_calculate_pc_joystick_parms()
{
js_lowerrange_x = js_center_x - js_min_x;
js_upperrange_x = js_max_x - js_center_x;
js_lowerrange_y = js_center_y - js_min_y;
js_upperrange_y = js_max_y - js_center_y;
js_offset_x = js_min_x;
js_offset_y = js_min_y;
js_adjustlow_x = (float)HALF_JOY_RANGE / (float)js_lowerrange_x;
js_adjustlow_y = (float)HALF_JOY_RANGE / (float)js_lowerrange_y;
js_adjusthigh_x = (float)HALF_JOY_RANGE / (float)js_upperrange_x;
js_adjusthigh_y = (float)HALF_JOY_RANGE / (float)js_upperrange_y;
}
/* -------------------------------------------------------------------------
c_calibrate_pc_joystick() - calibrates joystick. determines extreme
and center coordinates. assumes that it can write to the interface
screen.
------------------------------------------------------------------------- */
extern void copy_and_pad_string(char *dest, const char* src, const char c, const int len, const char cap);
static void c_calibrate_pc_joystick()
{
#define JOYERR_PAD 35
#define JOYERR_SUBMENU_H 9
#define JOYERR_SUBMENU_W 40
char errmenu[JOYERR_SUBMENU_H][JOYERR_SUBMENU_W+1] =
//1. 5. 10. 15. 20. 25. 30. 35. 40.
{ "||||||||||||||||||||||||||||||||||||||||",
"| |",
"| An error occurred: |",
"| |",
"| |",
"| Is a joystick device connected? |",
"| Is the proper kernel module loaded? |",
"| |",
"||||||||||||||||||||||||||||||||||||||||" };
#define JOYERR_SHOWERR(ERR) \
copy_and_pad_string(&errmenu[3][2], ERR, ' ', JOYERR_PAD, ' '); \
c_interface_print_submenu_centered(errmenu[0], JOYERR_SUBMENU_W, JOYERR_SUBMENU_H); \
while (c_mygetch(1) == -1) { }
/* reset all the extremes */
js_max_x = INT_MIN;
js_max_y = INT_MIN;
js_min_x = INT_MAX;
js_min_y = INT_MAX;
/* open joystick device if not open */
if (js_fd < 0)
{
if (c_open_pc_joystick())
{
JOYERR_SHOWERR(strerror(errno));
return;
}
}
#define CALIBRATE_SUBMENU_H 9
#define CALIBRATE_SUBMENU_W 40
char submenu[CALIBRATE_SUBMENU_H][CALIBRATE_SUBMENU_W+1] =
//1. 5. 10. 15. 20. 25. 30. 35. 40.
{ "||||||||||||||||||||||||||||||||||||||||",
"| |",
"| Move joystick to extremes of x and y |",
"| axes and then center it. |",
"| |",
"| btn1:@ btn2:@ x:@@@@ y:@@@@ |",
"| |",
"| ESC to continue... |",
"||||||||||||||||||||||||||||||||||||||||" };
#define SHOW_JOYSTICK_AXES(MENU, WIDTH, HEIGHT, X, Y) \
snprintf(temp, TEMPSIZE, "%04x", (short)(X)); \
copy_and_pad_string(&MENU[HEIGHT-4][24], temp, ' ', 5, ' '); \
snprintf(temp, TEMPSIZE, "%04x", (short)(Y)); \
copy_and_pad_string(&MENU[HEIGHT-4][32], temp, ' ', 5, ' '); \
c_interface_print_submenu_centered(MENU[0], WIDTH, HEIGHT);
#define SHOW_BUTTONS(MENU, HEIGHT) \
MENU[HEIGHT-4][8] = joy_button0 ? 'X' : ' '; \
MENU[HEIGHT-4][15] = joy_button1 ? 'X' : ' ';
for (;;)
{
int ch = c_mygetch(0);
SHOW_BUTTONS(submenu, CALIBRATE_SUBMENU_H);
SHOW_JOYSTICK_AXES(submenu, CALIBRATE_SUBMENU_W, CALIBRATE_SUBMENU_H, raw_js_x, raw_js_y);
if (js_max_x < raw_js_x)
{
js_max_x = raw_js_x;
}
if (js_max_y < raw_js_y)
{
js_max_y = raw_js_y;
}
if (js_min_x > raw_js_x)
{
js_min_x = raw_js_x;
}
if (js_min_y > raw_js_y)
{
js_min_y = raw_js_y;
}
if (ch == kESC)
{
break;
}
static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
nanosleep(&ts, NULL);
}
js_center_x = raw_js_x;
js_center_y = raw_js_y;
#ifndef NDEBUG
LOG("js_min_x = %d", js_min_x);
LOG("js_min_y = %d", js_min_y);
LOG("js_max_x = %d", js_max_x);
LOG("js_max_y = %d", js_max_y);
LOG("js_center_x = %d", js_center_x);
LOG("js_center_y = %d", js_center_y);
LOG(" ");
#endif
c_calculate_pc_joystick_parms();
#ifndef NDEBUG
LOG("js_lowerrange_x = %d", js_lowerrange_x);
LOG("js_lowerrange_y = %d", js_lowerrange_y);
LOG("js_upperrange_x = %d", js_upperrange_x);
LOG("js_upperrange_y = %d", js_upperrange_y);
LOG(" ");
LOG("js_offset_x = %d", js_offset_x);
LOG("js_offset_y = %d", js_offset_y);
LOG(" ");
LOG("js_adjustlow_x = %f", js_adjustlow_x);
LOG("js_adjustlow_y = %f", js_adjustlow_y);
LOG("js_adjusthigh_x = %f", js_adjusthigh_x);
LOG("js_adjusthigh_y = %f", js_adjusthigh_y);
LOG(" ");
#endif
#define CALIBRATE_JOYMENU_H 20
#define CALIBRATE_JOYMENU_W 40
#define CALIBRATE_TURTLE_X0 4
#define CALIBRATE_TURTLE_Y0 3
#define CALIBRATE_TURTLE_STEP_X (30.f / 255.f)
#define CALIBRATE_TURTLE_STEP_Y (10.f / 255.f)
char joymenu[CALIBRATE_JOYMENU_H][CALIBRATE_JOYMENU_W+1] =
//1. 5. 10. 15. 20. 25. 30. 35. 40.
{ "||||||||||||||||||||||||||||||||||||||||",
"| |",
"| ||||||||||||||||||||||||||||||||| |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| | | |",
"| ||||||||||||||||||||||||||||||||| |",
"| |",
"| btn1:@ btn2:@ x:@@@@ y:@@@@ |",
"| |",
"| ESC quits calibration |",
"||||||||||||||||||||||||||||||||||||||||" };
uint8_t x_val=0, y_val=0;
uint8_t x_last=CALIBRATE_JOYMENU_W>>1, y_last=CALIBRATE_JOYMENU_H>>1;
const char* const spinney = "|/-\\";
uint8_t spinney_idx=0;
for (;;)
{
int ch = c_mygetch(0);
int x_plot = CALIBRATE_TURTLE_X0 + (int)(joy_x * CALIBRATE_TURTLE_STEP_X);
int y_plot = CALIBRATE_TURTLE_Y0 + (int)(joy_y * CALIBRATE_TURTLE_STEP_Y);
joymenu[y_last][x_last] = ' ';
joymenu[y_plot][x_plot] = spinney[spinney_idx];
x_last = x_plot;
y_last = y_plot;
SHOW_BUTTONS(joymenu, CALIBRATE_JOYMENU_H);
SHOW_JOYSTICK_AXES(joymenu, CALIBRATE_JOYMENU_W, CALIBRATE_JOYMENU_H, joy_x, joy_y);
video_sync(0);
spinney_idx = (spinney_idx+1) % 4;
if (ch == kESC)
{
break;
}
static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
nanosleep(&ts, NULL);
}
}
#endif // LINUX_JOYSTICK
#ifdef KEYPAD_JOYSTICK
static void c_calibrate_keypad_joystick()
{
#define KEYPAD_SUBMENU_H 20
#define KEYPAD_SUBMENU_W 40
#define CALIBRATE_TURTLE_KP_X0 4
#define CALIBRATE_TURTLE_KP_Y0 5
#define CALIBRATE_TURTLE_KP_STEP_X (14.f / 255.f)
char submenu[KEYPAD_SUBMENU_H][KEYPAD_SUBMENU_W+1] =
//1. 5. 10. 15. 20. 25. 30. 35. 40.
{ "||||||||||||||||||||||||||||||||||||||||",
"| |",
"| Use keypad to test & tune joystick |",
"| |",
"| ||||||||||||||||| [You may need to |",
"| | | enable NumLock] |",
"| | | |",
"| | | |",
"| | | 7 @ 9 |",
"| | | @ 5 @ |",
"| | . | 1 @ 3 |",
"| | | Alt-l Alt-r |",
"| | | |",
"| | | + toggles auto- |",
"| | | recentering: @@@ |",
"| | | < or > to change |",
"| ||||||||||||||||| sensitivity: @@ |",
"| |",
"| Alt btn1:@ Alt btn2:@ x:@@ y:@@ |",
"||||||||||||||||||||||||||||||||||||||||" };
submenu[8][29] = MOUSETEXT_BEGIN + 0x0b;
submenu[9][27] = MOUSETEXT_BEGIN + 0x08;
submenu[9][31] = MOUSETEXT_BEGIN + 0x15;
submenu[10][29] = MOUSETEXT_BEGIN + 0x0a;
joy_x = HALF_JOY_RANGE;
joy_y = HALF_JOY_RANGE;
int ch = -1;
uint8_t x_last=CALIBRATE_JOYMENU_W>>1, y_last=CALIBRATE_JOYMENU_H>>1;
const char* const spinney = "|/-\\";
uint8_t spinney_idx=0;
for (;;)
{
submenu[KEYPAD_SUBMENU_H-2][12] = joy_button0 ? 'X' : ' ';
submenu[KEYPAD_SUBMENU_H-2][23] = joy_button1 ? 'X' : ' ';
snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_x);
copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-2][31], temp, ' ', 3, ' ');
snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_y);
copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-2][36], temp, ' ', 3, ' ');
snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_step);
copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-4][36], temp, ' ', 3, ' ');
snprintf(temp, TEMPSIZE, "%s", auto_recenter ? " on" : "off" );
copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-6][35], temp, ' ', 4, ' ');
int x_plot = CALIBRATE_TURTLE_KP_X0 + (int)(joy_x * CALIBRATE_TURTLE_KP_STEP_X);
int y_plot = CALIBRATE_TURTLE_KP_Y0 + (int)(joy_y * CALIBRATE_TURTLE_STEP_Y);
submenu[y_last][x_last] = ' ';
submenu[y_plot][x_plot] = spinney[spinney_idx];
x_last = x_plot;
y_last = y_plot;
spinney_idx = (spinney_idx+1) % 4;
c_interface_print_submenu_centered(submenu[0], KEYPAD_SUBMENU_W, KEYPAD_SUBMENU_H);
ch = c_mygetch(0);
if (ch == kESC)
{
break;
}
else if (ch == '<')
{
if (joy_step > 1)
{
--joy_step;
}
}
else if (ch == '>')
{
if (joy_step < 0xFF)
{
++joy_step;
}
}
else if (ch == '+')
{
auto_recenter = (auto_recenter+1) % 2;
if (auto_recenter)
{
joy_x = HALF_JOY_RANGE;
joy_y = HALF_JOY_RANGE;
}
}
static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
nanosleep(&ts, NULL);
}
}
#endif // KEYPAD_JOYSTICK
#ifdef TOUCH_JOYSTICK
// TBD ...
#endif
/* ---------------------------------------------------------------------- */
void c_open_joystick()
{
#ifdef LINUX_JOYSTICK
if (joy_mode == JOY_PCJOY)
{
c_open_pc_joystick();
}
#endif
#ifdef KEYPAD_JOYSTICK
if (joy_mode == JOY_KPAD)
{
// NOP
}
#endif
}
void c_close_joystick()
{
#ifdef LINUX_JOYSTICK
c_close_pc_joystick();
#endif
#ifdef KEYPAD_JOYSTICK
if (joy_mode == JOY_KPAD)
{
// NOP
}
#endif
}
void c_calibrate_joystick()
{
#ifdef LINUX_JOYSTICK
if (joy_mode == JOY_PCJOY)
{
c_calibrate_pc_joystick();
}
#endif
#ifdef KEYPAD_JOYSTICK
if (joy_mode == JOY_KPAD)
{
c_calibrate_keypad_joystick();
}
#endif
}
void c_joystick_reset()
{
#ifdef KEYPAD_JOYSTICK
if (joy_mode == JOY_KPAD)
{
joy_x = HALF_JOY_RANGE;
joy_y = HALF_JOY_RANGE;
}
#endif
}
Reference in New Issue View Git Blame Copy Permalink