mirror of
https://github.com/mauiaaron/apple2.git
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476 lines
12 KiB
C
476 lines
12 KiB
C
/*
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* Apple // emulator for Linux: Preferences file maintenance
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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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#define _GNU_SOURCE
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include "misc.h"
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#include "prefs.h"
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#include "keys.h"
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#include "interface.h"
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#include "cpu.h"
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#define PRM_NONE 0
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#define PRM_SPEED 1
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#define PRM_MODE 2
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#define PRM_DISK_PATH 3
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#define PRM_HIRES_COLOR 4
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#define PRM_SOUND 5
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#define PRM_JOY_INPUT 6
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#define PRM_JOY_RANGE 7
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#define PRM_JOY_OX 8
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#define PRM_JOY_OY 9
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#define PRM_JOY_PC_CALIBRATE 10
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#define PRM_JOY_KYBD_SENSITIVITY 11
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#define PRM_ROM_PATH 12
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char system_path[SYSSIZE];
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char disk_path[DISKSIZE];
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int apple_mode;
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int sound_mode;
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int color_mode;
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short joy_mode;
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short joy_step;
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short joy_center_x;
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short joy_center_y;
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short joy_range;
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short half_joy_range;
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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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#endif /* PC_JOYSTICK */
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static char *config_filename;
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struct match_table
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{
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const char *tag;
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int value;
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};
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static const struct match_table prefs_table[] =
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{
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{ "speed", PRM_SPEED },
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{ "mode", PRM_MODE },
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{ "path", PRM_DISK_PATH },
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{ "disk path", PRM_DISK_PATH },
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{ "disk_path", PRM_DISK_PATH },
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{ "path", PRM_DISK_PATH },
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{ "color", PRM_HIRES_COLOR },
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{ "sound", PRM_SOUND },
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{ "joystick", PRM_JOY_INPUT },
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{ "joy range", PRM_JOY_RANGE },
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{ "joystick range", PRM_JOY_RANGE },
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{ "joy_range", PRM_JOY_RANGE },
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{ "origin_x", PRM_JOY_OX },
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{ "origin_y", PRM_JOY_OY },
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{ "pc joystick parms", PRM_JOY_PC_CALIBRATE },
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{ "pc_joystick_parms", PRM_JOY_PC_CALIBRATE },
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{ "sensitivity", PRM_JOY_KYBD_SENSITIVITY },
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{ "system path", PRM_ROM_PATH },
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{ "system_path", PRM_ROM_PATH },
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{ 0, PRM_NONE }
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};
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static const struct match_table modes_table[] =
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{
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{ "][+", II_MODE },
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{ "][+ undocumented", IIU_MODE },
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#ifdef APPLE_IIE
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{ "//e", IIE_MODE },
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{ 0, IIE_MODE }
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#else /* !APPLE_IIE */
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{ 0, IIU_MODE }
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#endif /* !APPLE_IIE */
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};
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static const struct match_table color_table[] =
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{
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{ "black/white", NO_COLOR },
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{ "lazy color", LAZY_COLOR },
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{ "color", COLOR },
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{ "lazy interpolated", LAZY_INTERP },
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{ "interpolated", INTERP },
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{ "off", 0 },
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{ "on", COLOR },
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{ 0, COLOR }
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};
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static const struct match_table sound_table[] =
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{
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{ "off", 0 },
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{ "pc_speaker", 1 },
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{ "on", 1 },
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{ 0, 1 },
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};
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static const struct match_table joy_input_table[] =
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{
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{ "off", JOY_OFF },
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{ "keyboard", JOY_KYBD },
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{ "linear", JOY_KYBD },
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#ifdef PC_JOYSTICK
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{ "pc joystick", JOY_PCJOY },
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{ "pc_joystick", JOY_PCJOY },
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#endif /* PC_JOYSTICK */
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#if 0
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{ "digital", JOY_DIGITAL },
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#endif /* 0 */
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{ 0, JOY_KYBD }
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};
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/* Find the number assigned to KEYWORD in a match table PARADIGM. If no match,
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* then the value associated with the terminating entry is used as a
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* default. */
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static int
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match(const struct match_table *paradigm, const char *keyword)
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{
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while (paradigm->tag && strcasecmp(paradigm->tag, keyword))
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{
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paradigm++;
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}
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return paradigm->value;
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}
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/* Reverse match -- find a keyword associated with number KEY in
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* PARADIGM. The first match is used -- synonym keywords appearing later
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* in the table are not chosen.
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*
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* A null is returned for no match.
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*/
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static const char *reverse_match(const struct match_table *paradigm, int key)
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{
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while (paradigm->tag && key != paradigm->value)
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{
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paradigm++;
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}
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return paradigm->tag;
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}
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/* Eat leading and trailing whitespace of string X. The old string is
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* overwritten and a new pointer is returned.
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*/
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static char *
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clean_string(char *x)
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{
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size_t y;
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/* Leading white space */
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while (isspace(*x))
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{
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x++;
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}
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/* Trailing white space */
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y = strlen(x);
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while (y && x[y--] == ' ')
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{
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}
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x[y] = 0;
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return x;
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}
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/* Load the configuration. Must be called *once* at start. */
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void
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load_settings(void)
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{
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/* set system defaults before user defaults. */
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strcpy(disk_path, "./disks");
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strcpy(system_path, "./rom");
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{
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const char *homedir;
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homedir = getenv("HOME");
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config_filename = malloc(strlen(homedir) + 9);
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strcpy(config_filename, homedir);
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strcat(config_filename, "/.apple2");
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/* config_filename is left allocated for convinence in
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* save_settings */
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}
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{
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FILE *config_file;
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char *buffer = 0;
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size_t size = 0;
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config_file = fopen(config_filename, "r");
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if (config_file == NULL)
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{
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printf(
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"Warning. Cannot open the .apple2 system defaults file.\n"
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"Make sure it's readable in your home directory.");
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printf("Press RETURN to continue...");
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getchar();
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return;
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}
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while (getline(&buffer, &size, config_file) != -1)
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{
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char *parameter;
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char *argument;
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/* Split line between parameter and argument */
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parameter = buffer;
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argument = strchr(buffer, '=');
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argument[0] = 0;
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argument++;
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parameter = clean_string(parameter);
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argument = clean_string(argument);
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switch (match(prefs_table, parameter))
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{
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case PRM_NONE:
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fprintf(stderr, "Unrecognized config parameter `%s'", parameter);
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break;
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case PRM_SPEED:
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{
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int x;
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x = strtol(argument, 0, 0);
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if (x < 0)
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{
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x = 0;
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}
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cpu65_delay = MAX_APPLE_DELAY - x + 1;
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if (cpu65_delay < 1)
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{
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cpu65_delay = 1;
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}
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}
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break;
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case PRM_MODE:
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apple_mode = match(modes_table, argument);
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break;
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case PRM_DISK_PATH:
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strncpy(disk_path, argument, DISKSIZE);
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break;
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case PRM_HIRES_COLOR:
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color_mode = match(color_table, argument);
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break;
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case PRM_SOUND:
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sound_mode = match(sound_table, argument);
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break;
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case PRM_JOY_INPUT:
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joy_mode = match(joy_input_table, argument);
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break;
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case PRM_JOY_RANGE:
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joy_range = strtol(argument, 0, 0);
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if (joy_range < 10)
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{
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joy_range = 10;
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}
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else
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if (joy_range > 256)
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{
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joy_range = 256;
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}
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half_joy_range = joy_range / 2;
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if (joy_center_x > joy_range)
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{
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joy_center_x = half_joy_range;
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}
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if (joy_center_y > joy_range)
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{
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joy_center_y = half_joy_range;
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}
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break;
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case PRM_JOY_OX:
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joy_center_x = strtol(argument, 0, 0);
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if (joy_center_x < 0)
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{
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joy_center_x = 0;
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}
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else
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if (joy_center_x > 255)
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{
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joy_center_x = 255;
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}
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if (joy_center_x > joy_range)
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{
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joy_center_x = half_joy_range;
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}
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break;
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case PRM_JOY_OY:
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joy_center_y = strtol(argument, 0, 0);
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if (joy_center_y < 0)
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{
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joy_center_y = 0;
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}
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else
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if (joy_center_y > 255)
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{
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joy_center_y = 255;
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}
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if (joy_center_y > joy_range)
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{
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joy_center_y = half_joy_range;
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}
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break;
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case PRM_JOY_PC_CALIBRATE:
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#ifdef PC_JOYSTICK
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/* pc joystick parms generated by the calibration routine
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(shouldn't need to hand tweak these) = origin_x origin_y max_x
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min_x max_y min_y js_timelimit */
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js_center_x = strtol(argument, &argument, 10);
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js_center_y = strtol(argument, &argument, 10);
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js_max_x = strtol(argument, &argument, 10);
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if (js_max_x < 0)
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{
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js_max_x = 0;
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}
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js_min_x = strtol(argument, &argument, 10);
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if (js_min_x < 0)
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{
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js_min_x = 0;
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}
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js_max_y = strtol(argument, &argument, 10);
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if (js_max_y < 0)
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{
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js_max_y = 0;
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}
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js_min_y = strtol(argument, &argument, 10);
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if (js_min_y < 0)
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{
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js_min_y = 0;
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}
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js_timelimit = strtol(argument, &argument, 10);
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if (js_timelimit < 2)
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{
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js_timelimit = 2;
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}
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c_open_joystick();
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c_calculate_joystick_parms(); /* calculate the associated parms */
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#endif
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case PRM_JOY_KYBD_SENSITIVITY:
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joy_step = strtol(argument, 0, 0);
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if (joy_step < 1)
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{
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joy_step = 1;
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}
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else
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if (joy_step > 100)
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{
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joy_step = 100;
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}
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break;
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case PRM_ROM_PATH:
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strncpy(system_path, argument, SYSSIZE);
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break;
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}
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}
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fclose(config_file);
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}
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}
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/* Save the configuration */
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void
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save_settings(void)
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{
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FILE *config_file;
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config_file = fopen(config_filename, "w");
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if (config_file == NULL)
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{
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printf(
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"Cannot open the .apple2 system defaults file for writing.\n"
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"Make sure it has rw permission in your home directory.");
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return;
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}
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fprintf(config_file,
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"speed = %d\n"
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"mode = %s\n"
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"disk path = %s\n"
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"color = %s\n"
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"sound = %s\n"
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"joystick = %s\n"
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"joystick range = %d\n"
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"origin_x = %d\n"
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"origin_y = %d\n"
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"sensitivity = %d%%\n"
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"system path = %s\n",
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MAX_APPLE_DELAY + 1 - cpu65_delay,
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reverse_match(modes_table, apple_mode),
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disk_path,
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reverse_match(color_table, color_mode),
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reverse_match(sound_table, sound_mode),
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reverse_match(joy_input_table, joy_mode),
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joy_range,
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joy_center_x,
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joy_center_y,
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joy_step,
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system_path);
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#ifdef PC_JOYSTICK
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fprintf(config_file,
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"pc joystick parms = %d %d %d %d %d %d %ld\n",
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js_center_x, js_center_y, js_max_x, js_min_x,
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js_max_y, js_min_y, js_timelimit);
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#endif
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fclose(config_file);
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}
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