mirror of
https://github.com/mauiaaron/apple2.git
synced 2024-09-27 09:56:08 +00:00
490 lines
14 KiB
C
490 lines
14 KiB
C
/*
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* Apple // emulator for Linux: Joystick calibration routines
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*
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* Copyright 1994 Alexander Jean-Claude Bottema
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* Copyright 1995 Stephen Lee
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* Copyright 1997, 1998 Aaron Culliney
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* Copyright 1998, 1999, 2000 Michael Deutschmann
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*
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* This software package is subject to the GNU General Public License
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* version 2 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* THERE ARE NO WARRANTIES WHATSOEVER.
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*
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*/
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#ifdef PC_JOYSTICK
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#include <linux/joystick.h>
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#endif
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <values.h>
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#include "joystick.h"
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#include "interface.h"
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#include "video.h"
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#include "keys.h"
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#include "misc.h"
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#include "prefs.h"
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/* parameters for generic and keyboard-simulated joysticks */
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short joy_x = HALF_JOY_RANGE;
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short joy_y = HALF_JOY_RANGE;
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unsigned char joy_button0 = 0;
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unsigned char joy_button1 = 0;
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#ifdef KEYPAD_JOYSTICK
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short joy_step;
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#endif
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#ifdef PC_JOYSTICK
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int js_center_x;
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int js_center_y;
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long js_timelimit;
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int js_max_x;
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int js_max_y;
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int js_min_x;
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int js_min_y;
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int js_fd = -1; /* joystick file descriptor */
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struct JS_DATA_TYPE js; /* joystick data struct */
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int raw_js_x;
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int raw_js_y;
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int js_lowerrange_x,
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js_upperrange_x,
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js_lowerrange_y,
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js_upperrange_y,
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js_offset_x,
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js_offset_y;
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float
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js_adjustlow_x,
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js_adjustlow_y,
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js_adjusthigh_x,
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js_adjusthigh_y;
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/* -------------------------------------------------------------------------
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c_open_pc_joystick() - opens joystick device and sets timelimit value
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------------------------------------------------------------------------- */
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static void c_calculate_pc_joystick_parms();
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int c_open_pc_joystick()
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{
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if (js_fd < 0)
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{
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if ((js_fd = open("/dev/js0", O_RDONLY)) < 0)
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{
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/* try again with another name */
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if ((js_fd = open("/dev/joystick", O_RDONLY)) < 0)
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{
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if ((js_fd = open("/dev/input/js0", O_RDONLY)) < 0)
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{
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return 1; /* problem */
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}
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}
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}
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/* set timelimit value */
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if (ioctl(js_fd, JS_SET_TIMELIMIT, &js_timelimit) == -1)
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{
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return 1; /* problem */
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}
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}
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c_calculate_pc_joystick_parms();
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return 0; /* no problem */
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}
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/* -------------------------------------------------------------------------
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c_close_pc_joystick() - closes joystick device
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------------------------------------------------------------------------- */
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void c_close_pc_joystick()
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{
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if (js_fd < 0)
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{
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return;
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}
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close(js_fd);
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js_fd = -1;
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}
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/* -------------------------------------------------------------------------
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* c_calculate_pc_joystick_parms() - calculates parameters for joystick
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* device. assumes that device extremes have already been determined.
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* ------------------------------------------------------------------------- */
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static void c_calculate_pc_joystick_parms()
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{
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js_lowerrange_x = js_center_x - js_min_x;
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js_upperrange_x = js_max_x - js_center_x;
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js_lowerrange_y = js_center_y - js_min_y;
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js_upperrange_y = js_max_y - js_center_y;
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js_offset_x = js_min_x;
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js_offset_y = js_min_y;
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js_adjustlow_x = (float)HALF_JOY_RANGE / (float)js_lowerrange_x;
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js_adjustlow_y = (float)HALF_JOY_RANGE / (float)js_lowerrange_y;
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js_adjusthigh_x = (float)HALF_JOY_RANGE / (float)js_upperrange_x;
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js_adjusthigh_y = (float)HALF_JOY_RANGE / (float)js_upperrange_y;
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}
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/* -------------------------------------------------------------------------
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c_calibrate_pc_joystick() - calibrates joystick. determines extreme
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and center coordinates. assumes that it can write to the interface
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screen.
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------------------------------------------------------------------------- */
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extern void copy_and_pad_string(char *dest, const char* src, const char c, const int len, const char cap);
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static void c_calibrate_pc_joystick()
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{
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#define JOYERR_PAD 35
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#define JOYERR_SUBMENU_H 9
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#define JOYERR_SUBMENU_W 40
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char errmenu[JOYERR_SUBMENU_H][JOYERR_SUBMENU_W+1] =
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//1. 5. 10. 15. 20. 25. 30. 35. 40.
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{ "||||||||||||||||||||||||||||||||||||||||",
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"| |",
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"| An error occurred: |",
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"| |",
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"| |",
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"| Is a joystick device connected? |",
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"| Is the proper kernel module loaded? |",
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"| |",
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"||||||||||||||||||||||||||||||||||||||||" };
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#define JOYERR_SHOWERR(ERR) \
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copy_and_pad_string(&errmenu[3][2], ERR, ' ', JOYERR_PAD, ' '); \
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c_interface_print_submenu_centered(errmenu[0], JOYERR_SUBMENU_W, JOYERR_SUBMENU_H); \
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while (c_mygetch(1) == -1) { }
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/* reset all the extremes */
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js_max_x = -1;
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js_max_y = -1;
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js_min_x = MAXINT;
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js_min_y = MAXINT;
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/* open joystick device if not open */
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if (js_fd < 0)
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{
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if (c_open_pc_joystick())
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{
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JOYERR_SHOWERR(strerror(errno));
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return;
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}
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}
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#define CALIBRATE_SUBMENU_H 9
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#define CALIBRATE_SUBMENU_W 40
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char submenu[CALIBRATE_SUBMENU_H][CALIBRATE_SUBMENU_W+1] =
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//1. 5. 10. 15. 20. 25. 30. 35. 40.
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{ "||||||||||||||||||||||||||||||||||||||||",
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"| |",
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"| Move joystick to extremes of x and y |",
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"| axes and then center it. |",
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"| |",
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"| btn1:@ btn2:@ x:@@@@ y:@@@@ |",
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"| |",
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"| ESC to continue... |",
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"||||||||||||||||||||||||||||||||||||||||" };
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#define SHOW_JOYSTICK_AXES(MENU, WIDTH, HEIGHT, X, Y) \
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snprintf(temp, TEMPSIZE, "%04x", (short)(X)); \
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copy_and_pad_string(&MENU[HEIGHT-4][24], temp, ' ', 5, ' '); \
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snprintf(temp, TEMPSIZE, "%04x", (short)(Y)); \
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copy_and_pad_string(&MENU[HEIGHT-4][32], temp, ' ', 5, ' '); \
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c_interface_print_submenu_centered(MENU[0], WIDTH, HEIGHT);
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#define SHOW_BUTTONS(MENU, HEIGHT) \
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MENU[HEIGHT-4][8] = joy_button0 ? 'X' : ' '; \
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MENU[HEIGHT-4][15] = joy_button1 ? 'X' : ' ';
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for (;;)
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{
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int ch = c_mygetch(0);
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SHOW_BUTTONS(submenu, CALIBRATE_SUBMENU_H);
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SHOW_JOYSTICK_AXES(submenu, CALIBRATE_SUBMENU_W, CALIBRATE_SUBMENU_H, raw_js_x, raw_js_y);
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if (js_max_x < raw_js_x)
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{
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js_max_x = raw_js_x;
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}
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if (js_max_y < raw_js_y)
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{
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js_max_y = raw_js_y;
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}
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if (js_min_x > raw_js_x)
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{
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js_min_x = raw_js_x;
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}
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if (js_min_y > raw_js_y)
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{
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js_min_y = raw_js_y;
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}
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if (ch == kESC)
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{
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break;
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}
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static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
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nanosleep(&ts, NULL);
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}
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js_center_x = raw_js_x;
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js_center_y = raw_js_y;
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#ifndef NDEBUG
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LOG("js_min_x = %d", js_min_x);
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LOG("js_min_y = %d", js_min_y);
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LOG("js_max_x = %d", js_max_x);
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LOG("js_max_y = %d", js_max_y);
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LOG("js_center_x = %d", js_center_x);
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LOG("js_center_y = %d", js_center_y);
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LOG(" ");
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#endif
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c_calculate_pc_joystick_parms();
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#ifndef NDEBUG
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LOG("js_lowerrange_x = %d", js_lowerrange_x);
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LOG("js_lowerrange_y = %d", js_lowerrange_y);
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LOG("js_upperrange_x = %d", js_upperrange_x);
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LOG("js_upperrange_y = %d", js_upperrange_y);
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LOG(" ");
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LOG("js_offset_x = %d", js_offset_x);
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LOG("js_offset_y = %d", js_offset_y);
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LOG(" ");
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LOG("js_adjustlow_x = %f", js_adjustlow_x);
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LOG("js_adjustlow_y = %f", js_adjustlow_y);
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LOG("js_adjusthigh_x = %f", js_adjusthigh_x);
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LOG("js_adjusthigh_y = %f", js_adjusthigh_y);
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LOG(" ");
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#endif
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#define CALIBRATE_JOYMENU_H 20
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#define CALIBRATE_JOYMENU_W 40
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#define CALIBRATE_TURTLE_X0 4
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#define CALIBRATE_TURTLE_Y0 3
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#define CALIBRATE_TURTLE_STEP_X (30.f / 255.f)
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#define CALIBRATE_TURTLE_STEP_Y (10.f / 255.f)
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char joymenu[CALIBRATE_JOYMENU_H][CALIBRATE_JOYMENU_W+1] =
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//1. 5. 10. 15. 20. 25. 30. 35. 40.
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{ "||||||||||||||||||||||||||||||||||||||||",
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"| |",
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"| ||||||||||||||||||||||||||||||||| |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| ||||||||||||||||||||||||||||||||| |",
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"| |",
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"| btn1:@ btn2:@ x:@@@@ y:@@@@ |",
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"| |",
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"| ESC quits calibration |",
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"||||||||||||||||||||||||||||||||||||||||" };
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uint8_t x_val=0, y_val=0;
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uint8_t x_last=CALIBRATE_JOYMENU_W>>1, y_last=CALIBRATE_JOYMENU_H>>1;
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const char* const spinney = "|/-\\";
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uint8_t spinney_idx=0;
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for (;;)
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{
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int ch = c_mygetch(0);
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int x_plot = CALIBRATE_TURTLE_X0 + (int)(joy_x * CALIBRATE_TURTLE_STEP_X);
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int y_plot = CALIBRATE_TURTLE_Y0 + (int)(joy_y * CALIBRATE_TURTLE_STEP_Y);
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joymenu[y_last][x_last] = ' ';
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joymenu[y_plot][x_plot] = spinney[spinney_idx];
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x_last = x_plot;
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y_last = y_plot;
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SHOW_BUTTONS(joymenu, CALIBRATE_JOYMENU_H);
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SHOW_JOYSTICK_AXES(joymenu, CALIBRATE_JOYMENU_W, CALIBRATE_JOYMENU_H, joy_x, joy_y);
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video_sync(0);
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spinney_idx = (spinney_idx+1) % 4;
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if (ch == kESC)
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{
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break;
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}
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static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
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nanosleep(&ts, NULL);
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}
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}
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#endif // PC_JOYSTICK
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#ifdef KEYPAD_JOYSTICK
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static void c_calibrate_keypad_joystick()
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{
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#define KEYPAD_SUBMENU_H 20
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#define KEYPAD_SUBMENU_W 40
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#define CALIBRATE_TURTLE_KP_X0 4
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#define CALIBRATE_TURTLE_KP_Y0 5
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#define CALIBRATE_TURTLE_KP_STEP_X (14.f / 255.f)
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char submenu[KEYPAD_SUBMENU_H][KEYPAD_SUBMENU_W+1] =
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//1. 5. 10. 15. 20. 25. 30. 35. 40.
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{ "||||||||||||||||||||||||||||||||||||||||",
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"| |",
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"| Use keypad to test & tune joystick |",
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"| |",
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"| ||||||||||||||||| [You may need to |",
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"| | | enable NumLock] |",
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"| | | |",
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"| | | |",
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"| | | 7 @ 9 |",
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"| | | @ 5 @ |",
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"| | . | 1 @ 3 |",
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"| | | Alt-l Alt-r |",
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"| | | |",
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"| | | |",
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"| | | |",
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"| | | < or > to change |",
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"| ||||||||||||||||| sensitivity: @@ |",
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"| |",
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"| Alt btn1:@ Alt btn2:@ x:@@ y:@@ |",
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"||||||||||||||||||||||||||||||||||||||||" };
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submenu[8][29] = MOUSETEXT_BEGIN + 0x0b;
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submenu[9][27] = MOUSETEXT_BEGIN + 0x08;
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submenu[9][31] = MOUSETEXT_BEGIN + 0x15;
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submenu[10][29] = MOUSETEXT_BEGIN + 0x0a;
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joy_x = HALF_JOY_RANGE;
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joy_y = HALF_JOY_RANGE;
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int ch = -1;
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uint8_t x_last=CALIBRATE_JOYMENU_W>>1, y_last=CALIBRATE_JOYMENU_H>>1;
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const char* const spinney = "|/-\\";
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uint8_t spinney_idx=0;
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for (;;)
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{
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submenu[KEYPAD_SUBMENU_H-2][12] = joy_button0 ? 'X' : ' ';
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submenu[KEYPAD_SUBMENU_H-2][23] = joy_button1 ? 'X' : ' ';
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snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_x);
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copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-2][31], temp, ' ', 3, ' ');
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snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_y);
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copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-2][36], temp, ' ', 3, ' ');
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snprintf(temp, TEMPSIZE, "%02x", (uint8_t)joy_step);
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copy_and_pad_string(&submenu[KEYPAD_SUBMENU_H-4][36], temp, ' ', 3, ' ');
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int x_plot = CALIBRATE_TURTLE_KP_X0 + (int)(joy_x * CALIBRATE_TURTLE_KP_STEP_X);
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int y_plot = CALIBRATE_TURTLE_KP_Y0 + (int)(joy_y * CALIBRATE_TURTLE_STEP_Y);
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submenu[y_last][x_last] = ' ';
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submenu[y_plot][x_plot] = spinney[spinney_idx];
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x_last = x_plot;
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y_last = y_plot;
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spinney_idx = (spinney_idx+1) % 4;
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c_interface_print_submenu_centered(submenu[0], KEYPAD_SUBMENU_W, KEYPAD_SUBMENU_H);
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ch = c_mygetch(0);
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if (ch == kESC)
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{
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break;
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}
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else if (ch == '<')
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{
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if (joy_step > 1)
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{
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--joy_step;
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}
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}
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else if (ch == '>')
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{
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if (joy_step < 0xFF)
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{
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++joy_step;
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}
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}
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static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
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nanosleep(&ts, NULL);
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}
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}
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#endif
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#ifdef TOUCH_JOYSTICK
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// TBD ...
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#endif
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/* ---------------------------------------------------------------------- */
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void c_open_joystick()
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{
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#ifdef PC_JOYSTICK
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if (joy_mode == JOY_PCJOY)
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{
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c_open_pc_joystick();
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}
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#endif
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#ifdef KEYPAD_JOYSTICK
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if (joy_mode == JOY_KPAD)
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{
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// NOP
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}
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#endif
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}
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void c_close_joystick()
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{
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#ifdef PC_JOYSTICK
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c_close_pc_joystick();
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#endif
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#ifdef KEYPAD_JOYSTICK
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if (joy_mode == JOY_KPAD)
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{
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// NOP
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}
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#endif
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}
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void c_calibrate_joystick()
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{
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#ifdef PC_JOYSTICK
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if (joy_mode == JOY_PCJOY)
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{
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c_calibrate_pc_joystick();
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}
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#endif
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#ifdef KEYPAD_JOYSTICK
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if (joy_mode == JOY_KPAD)
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{
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c_calibrate_keypad_joystick();
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}
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#endif
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}
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