384 lines
10 KiB
C
384 lines
10 KiB
C
/*
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* Apple // emulator for *ix
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*
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* This software package is subject to the GNU General Public License
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* version 3 or later (your choice) as published by the Free Software
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* Foundation.
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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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* Copyright 2013-2015 Aaron Culliney
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*
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*/
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#define _GNU_SOURCE
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#include "common.h"
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#define PRM_NONE 0
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#define PRM_SPEED 1
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#define PRM_ALTSPEED 101
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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_VOLUME 5
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#define PRM_JOY_INPUT 6
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#define PRM_VIDEO_MODE 7
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#define PRM_JOY_KPAD_CALIBRATE 11
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#define PRM_ROM_PATH 12
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#define PRM_CAPSLOCK 102
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char system_path[PATH_MAX] = { 0 };
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char disk_path[PATH_MAX] = { 0 };
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#warning FIXME TODO : completely excise deprecated apple_mode stuff
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int apple_mode = 2/*IIE_MODE*/;
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a2_video_mode_t a2_video_mode = VIDEO_1X;
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joystick_mode_t joy_mode = JOY_PCJOY;
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static char *config_filename = NULL;
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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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{ "altspeed", PRM_ALTSPEED },
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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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{ "video", PRM_VIDEO_MODE },
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{ "volume", PRM_VOLUME },
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{ "caps_lock", PRM_CAPSLOCK },
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{ "caps lock", PRM_CAPSLOCK },
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{ "joystick", PRM_JOY_INPUT },
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{ "keypad joystick parms", PRM_JOY_KPAD_CALIBRATE },
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{ "keypad_joystick_parms", PRM_JOY_KPAD_CALIBRATE },
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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 color_table[] =
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{
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{ "black/white", COLOR_NONE },
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/*{ "lazy color", LAZY_COLOR }, deprecated*/
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{ "color", COLOR },
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/*{ "lazy interpolated", LAZY_INTERP }, deprecated*/
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{ "interpolated", COLOR_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 video_table[] =
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{
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{ "1X", VIDEO_1X },
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{ "2X", VIDEO_2X },
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{ "Fullscreen", VIDEO_FULLSCREEN },
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{ 0, VIDEO_1X }
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};
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static const struct match_table volume_table[] =
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{
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{ "0", 0 },
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{ "1", 1 },
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{ "2", 2 },
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{ "3", 3 },
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{ "4", 4 },
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{ "5", 5 },
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{ "6", 6 },
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{ "7", 7 },
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{ "8", 8 },
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{ "9", 9 },
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{ "10", 10 },
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{ 0, 10 },
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};
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static const struct match_table capslock_table[] =
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{
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{ "0", 0 },
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{ "1", 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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{ "pc joystick", JOY_PCJOY },
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#ifdef KEYPAD_JOYSTICK
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{ "joy keypad", JOY_KPAD },
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{ "joy_keypad", JOY_KPAD },
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#endif
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{ 0, JOY_PCJOY }
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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 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 * 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 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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const char *apple2cfg = getenv("APPLE2IXCFG");
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if (apple2cfg) {
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config_filename = strdup(apple2cfg);
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} else {
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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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char *buffer = 0;
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size_t size = 0;
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FILE *config_file = fopen(config_filename, "r");
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if (config_file == NULL)
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{
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ERRLOG(
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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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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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int main_match = match(prefs_table, parameter);
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switch (main_match)
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{
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case PRM_NONE:
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ERRLOG("Unrecognized config parameter `%s'", parameter);
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break;
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case PRM_SPEED:
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case PRM_ALTSPEED:
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{
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double x = strtod(argument, NULL);
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if (x > CPU_SCALE_FASTEST)
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{
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x = CPU_SCALE_FASTEST;
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}
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else if (x < CPU_SCALE_SLOWEST)
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{
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x = CPU_SCALE_SLOWEST;
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}
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if (main_match == PRM_SPEED)
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{
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cpu_scale_factor = x;
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}
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else
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{
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cpu_altscale_factor = x;
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}
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break;
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}
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case PRM_DISK_PATH:
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strncpy(disk_path, argument, PATH_MAX-1);
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disk_path[PATH_MAX-1] = '\0';
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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_VIDEO_MODE:
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a2_video_mode = match(video_table, argument);
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break;
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case PRM_VOLUME:
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sound_volume = match(volume_table, argument);
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break;
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case PRM_CAPSLOCK:
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caps_lock = match(capslock_table, argument) ? true : false;
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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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#ifdef KEYPAD_JOYSTICK
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case PRM_JOY_KPAD_CALIBRATE:
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joy_step = strtol(argument, &argument, 10);
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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 if (joy_step > 255)
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{
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joy_step = 255;
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}
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joy_auto_recenter = strtol(argument, &argument, 10);
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break;
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#endif
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case PRM_ROM_PATH:
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strncpy(system_path, argument, PATH_MAX-1);
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system_path[PATH_MAX-1] = '\0';
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break;
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}
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}
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FREE(buffer);
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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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bool save_settings(void)
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{
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FILE *config_file = NULL;
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LOG("Saving preferences...");
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#define PREFS_ERRPRINT() \
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ERRLOG( \
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"Cannot open the .apple2/apple2.cfg system defaults file for writing.\n" \
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"Make sure it has rw permission in your home directory.")
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#define ERROR_SUBMENU_H 9
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#define ERROR_SUBMENU_W 40
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#ifdef INTERFACE_CLASSIC
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int ch = -1;
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char submenu[ERROR_SUBMENU_H][ERROR_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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"| |",
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"| OOPS, could not open or write to the |",
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"| .apple2/apple2.cfg file in your HOME |",
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"| directory ... |",
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"| |",
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"| |",
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"||||||||||||||||||||||||||||||||||||||||" };
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#endif
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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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PREFS_ERRPRINT();
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#ifdef INTERFACE_CLASSIC
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c_interface_print_submenu_centered(submenu[0], ERROR_SUBMENU_W, ERROR_SUBMENU_H);
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while ((ch = c_mygetch(1)) == -1)
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{
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}
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#endif
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return false;
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}
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int err = 0;
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err |= fprintf(config_file, "speed = %0.2lf\n", cpu_scale_factor);
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err |= fprintf(config_file, "altspeed = %0.2lf\n", cpu_altscale_factor);
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err |= fprintf(config_file, "disk path = %s\n", disk_path);
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err |= fprintf(config_file, "color = %s\n", reverse_match(color_table, color_mode));
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err |= fprintf(config_file, "video = %s\n", reverse_match(video_table, a2_video_mode));
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err |= fprintf(config_file, "volume = %s\n", reverse_match(volume_table, sound_volume));
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err |= fprintf(config_file, "caps lock = %s\n", reverse_match(capslock_table, (int)caps_lock));
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err |= fprintf(config_file, "joystick = %s\n", reverse_match(joy_input_table, joy_mode));
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err |= fprintf(config_file, "system path = %s\n", system_path);
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#ifdef KEYPAD_JOYSTICK
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err |= fprintf(config_file, "keypad joystick parms = %d %u\n", joy_step, (joy_auto_recenter ? 1 : 0));
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#endif
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if (err < 0) {
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PREFS_ERRPRINT();
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#ifdef INTERFACE_CLASSIC
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c_interface_print_submenu_centered(submenu[0], ERROR_SUBMENU_W, ERROR_SUBMENU_H);
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while ((ch = c_mygetch(1)) == -1) { }
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#endif
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return false;
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}
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fclose(config_file);
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return true;
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}
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