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/* |
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* prefs.cpp - Preferences handling |
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* |
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* Basilisk II (C) 1997-1999 Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#include <string.h> |
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <ctype.h> |
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|
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#include "sysdeps.h" |
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#include "sys.h" |
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#include "prefs.h" |
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|
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|
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// Common preferences items (those which exist on all platforms) |
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// Except for "disk", "floppy", "cdrom", "scsiX", "screen", "rom" and "ether", |
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// these are guaranteed to be in the prefs; "disk", "floppy" and "cdrom" can |
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// occur multiple times |
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prefs_desc common_prefs_items[] = { |
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{"disk", TYPE_STRING, true}, // Device/file names of Mac volumes (disk.cpp) |
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{"floppy", TYPE_STRING, true}, // Device/file names of Mac floppy drives (sony.cpp) |
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{"cdrom", TYPE_STRING, true}, // Device/file names of Mac CD-ROM drives (cdrom.cpp) |
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{"scsi0", TYPE_STRING, false}, // SCSI targets for Mac SCSI ID 0..6 (scsi_*.cpp) |
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{"scsi1", TYPE_STRING, false}, |
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{"scsi2", TYPE_STRING, false}, |
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{"scsi3", TYPE_STRING, false}, |
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{"scsi4", TYPE_STRING, false}, |
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{"scsi5", TYPE_STRING, false}, |
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{"scsi6", TYPE_STRING, false}, |
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{"screen", TYPE_STRING, false}, // Video mode (video.cpp) |
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{"seriala", TYPE_STRING, false}, // Device name of Mac serial port A (serial_*.cpp) |
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{"serialb", TYPE_STRING, false}, // Device name of Mac serial port B (serial_*.cpp) |
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{"ether", TYPE_STRING, false}, // Device name of Mac ethernet adapter (ether_*.cpp) |
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{"rom", TYPE_STRING, false}, // Path of ROM file (main_*.cpp) |
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{"bootdrive", TYPE_INT16, false}, // Boot drive number (main_*.cpp) |
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{"bootdriver", TYPE_INT16, false}, // Boot driver number (main_*.cpp) |
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{"ramsize", TYPE_INT32, false}, // Size of Mac RAM in bytes (main_*.cpp) |
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{"frameskip", TYPE_INT32, false}, // Number of frames to skip in refreshed video modes (video_*.cpp) |
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{"modelid", TYPE_INT32, false}, // Mac Model ID (Gestalt Model ID minus 6) (rom_patches.cpp) |
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{"fpu", TYPE_BOOLEAN, false}, // Enable FPU emulation (main_*.cpp) |
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{"nocdrom", TYPE_BOOLEAN, false}, // Don't install CD-ROM driver (cdrom.cpp/rom_patches.cpp) |
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{"nosound", TYPE_BOOLEAN, false}, // Don't enable sound output (audio_*.cpp) |
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{"nogui", TYPE_BOOLEAN, false}, // Disable GUI (main_*.cpp) |
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{NULL, TYPE_END, false} // End of list |
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}; |
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|
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|
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// Prefs item are stored in a linked list of these nodes |
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struct prefs_node { |
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prefs_node *next; |
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const char *name; |
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prefs_type type; |
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void *data; |
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}; |
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|
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// List of prefs nodes |
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static prefs_node *the_prefs; |
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|
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|
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/* |
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* Initialize preferences |
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*/ |
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|
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void PrefsInit(void) |
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{ |
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// Start with empty list |
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the_prefs = NULL; |
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|
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// Set defaults |
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SysAddSerialPrefs(); |
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PrefsAddInt16("bootdriver", 0); |
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PrefsAddInt16("bootdrive", 0); |
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PrefsAddInt32("ramsize", 8 * 1024 * 1024); |
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PrefsAddInt32("frameskip", 6); |
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PrefsAddInt32("modelid", 5); // Mac IIci |
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PrefsAddBool("fpu", false); |
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PrefsAddBool("nocdrom", false); |
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PrefsAddBool("nosound", false); |
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PrefsAddBool("nogui", false); |
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AddPlatformPrefsDefaults(); |
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|
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// Load preferences from settings file |
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LoadPrefs(); |
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} |
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|
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|
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/* |
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* Deinitialize preferences |
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*/ |
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|
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void PrefsExit(void) |
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{ |
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// Free prefs list |
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prefs_node *p = the_prefs, *next; |
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while (p) { |
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next = p->next; |
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free((void *)p->name); |
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free(p->data); |
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delete p; |
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p = next; |
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} |
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} |
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|
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|
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/* |
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* Find preferences descriptor by keyword |
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*/ |
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|
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static const prefs_desc *find_prefs_desc(const char *name, const prefs_desc *list) |
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{ |
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while (list->type != TYPE_ANY) { |
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if (strcmp(list->name, name) == 0) |
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return list; |
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list++; |
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} |
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return NULL; |
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} |
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|
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|
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/* |
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* Set prefs items |
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*/ |
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|
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static void add_data(const char *name, prefs_type type, void *data, int size) |
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{ |
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void *d = malloc(size); |
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if (d == NULL) |
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return; |
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memcpy(d, data, size); |
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prefs_node *p = new prefs_node; |
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p->next = 0; |
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p->name = strdup(name); |
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p->type = type; |
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p->data = d; |
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if (the_prefs) { |
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prefs_node *prev = the_prefs; |
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while (prev->next) |
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prev = prev->next; |
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prev->next = p; |
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} else |
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the_prefs = p; |
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} |
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|
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void PrefsAddString(const char *name, const char *s) |
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{ |
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add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1); |
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} |
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|
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void PrefsAddBool(const char *name, bool b) |
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{ |
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add_data(name, TYPE_BOOLEAN, &b, sizeof(bool)); |
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} |
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|
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void PrefsAddInt16(const char *name, int16 val) |
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{ |
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add_data(name, TYPE_INT16, &val, sizeof(int16)); |
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} |
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|
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void PrefsAddInt32(const char *name, int32 val) |
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{ |
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add_data(name, TYPE_INT32, &val, sizeof(int32)); |
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} |
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|
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|
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/* |
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* Replace prefs items |
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*/ |
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|
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static prefs_node *find_node(const char *name, prefs_type type, int index = 0) |
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{ |
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prefs_node *p = the_prefs; |
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int i = 0; |
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while (p) { |
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if ((type == TYPE_ANY || p->type == type) && !strcmp(p->name, name)) { |
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if (i == index) |
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return p; |
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else |
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i++; |
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} |
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p = p->next; |
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} |
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return NULL; |
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} |
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|
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void PrefsReplaceString(const char *name, const char *s, int index) |
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{ |
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prefs_node *p = find_node(name, TYPE_STRING, index); |
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if (p) { |
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free(p->data); |
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p->data = strdup(s); |
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} else |
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add_data(name, TYPE_STRING, (void *)s, strlen(s) + 1); |
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} |
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|
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void PrefsReplaceBool(const char *name, bool b) |
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{ |
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prefs_node *p = find_node(name, TYPE_BOOLEAN); |
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if (p) |
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*(bool *)(p->data) = b; |
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else |
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add_data(name, TYPE_BOOLEAN, &b, sizeof(bool)); |
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} |
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|
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void PrefsReplaceInt16(const char *name, int16 val) |
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{ |
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prefs_node *p = find_node(name, TYPE_INT16); |
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if (p) |
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*(int16 *)(p->data) = val; |
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else |
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add_data(name, TYPE_INT16, &val, sizeof(int16)); |
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} |
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|
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void PrefsReplaceInt32(const char *name, int32 val) |
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{ |
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prefs_node *p = find_node(name, TYPE_INT32); |
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if (p) |
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*(int32 *)(p->data) = val; |
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else |
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add_data(name, TYPE_INT32, &val, sizeof(int32)); |
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} |
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|
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|
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/* |
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* Get prefs items |
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*/ |
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|
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const char *PrefsFindString(const char *name, int index) |
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{ |
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prefs_node *p = find_node(name, TYPE_STRING, index); |
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if (p) |
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return (char *)(p->data); |
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else |
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return NULL; |
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} |
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|
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bool PrefsFindBool(const char *name) |
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{ |
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prefs_node *p = find_node(name, TYPE_BOOLEAN, 0); |
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if (p) |
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return *(bool *)(p->data); |
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else |
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return false; |
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} |
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|
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int16 PrefsFindInt16(const char *name) |
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{ |
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prefs_node *p = find_node(name, TYPE_INT16, 0); |
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if (p) |
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return *(int16 *)(p->data); |
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else |
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return 0; |
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} |
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|
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int32 PrefsFindInt32(const char *name) |
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{ |
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prefs_node *p = find_node(name, TYPE_INT32, 0); |
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if (p) |
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return *(int32 *)(p->data); |
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else |
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return 0; |
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} |
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|
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|
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/* |
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* Remove prefs items |
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*/ |
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|
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void PrefsRemoveItem(const char *name, int index) |
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{ |
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prefs_node *p = find_node(name, TYPE_ANY, index); |
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if (p) { |
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free((void *)p->name); |
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free(p->data); |
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prefs_node *q = the_prefs; |
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if (q == p) { |
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the_prefs = NULL; |
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delete p; |
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return; |
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} |
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while (q) { |
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if (q->next == p) { |
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q->next = p->next; |
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delete p; |
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return; |
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} |
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q = q->next; |
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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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* Load prefs from stream (utility function for LoadPrefs() implementation) |
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*/ |
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|
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void LoadPrefsFromStream(FILE *f) |
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{ |
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char line[256]; |
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while(fgets(line, 255, f)) { |
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// Read line |
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int len = strlen(line); |
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if (len == 0) |
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continue; |
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line[len-1] = 0; |
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|
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// Comments begin with "#" or ";" |
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if (line[0] == '#' || line[0] == ';') |
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continue; |
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|
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// Terminate string after keyword |
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char *p = line; |
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while (!isspace(*p)) p++; |
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*p++ = 0; |
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|
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// Skip whitespace until value |
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while (isspace(*p)) p++; |
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if (*p == 0) |
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continue; |
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char *keyword = line; |
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char *value = p; |
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int32 i = atol(value); |
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|
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// Look for keyword first in common item list, then in platform specific list |
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const prefs_desc *desc = find_prefs_desc(keyword, common_prefs_items); |
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if (desc == NULL) |
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desc = find_prefs_desc(keyword, platform_prefs_items); |
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if (desc == NULL) { |
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printf("WARNING: Unknown preferences keyword '%s'\n", keyword); |
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continue; |
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} |
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|
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// Add item to prefs |
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switch (desc->type) { |
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case TYPE_STRING: |
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if (desc->multiple) |
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PrefsAddString(keyword, value); |
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else |
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PrefsReplaceString(keyword, value); |
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break; |
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case TYPE_BOOLEAN: |
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PrefsReplaceBool(keyword, !strcmp(value, "true")); |
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break; |
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case TYPE_INT16: |
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PrefsReplaceInt16(keyword, i); |
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break; |
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case TYPE_INT32: |
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PrefsReplaceInt32(keyword, i); |
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break; |
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default: |
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break; |
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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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* Save settings to stream (utility function for SavePrefs() implementation) |
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*/ |
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|
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static void write_prefs(FILE *f, const prefs_desc *list) |
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{ |
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while (list->type != TYPE_ANY) { |
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switch (list->type) { |
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case TYPE_STRING: { |
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int index = 0; |
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const char *str; |
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while ((str = PrefsFindString(list->name, index++)) != NULL) |
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fprintf(f, "%s %s\n", list->name, str); |
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break; |
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} |
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case TYPE_BOOLEAN: |
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fprintf(f, "%s %s\n", list->name, PrefsFindBool(list->name) ? "true" : "false"); |
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break; |
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case TYPE_INT16: |
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fprintf(f, "%s %d\n", list->name, PrefsFindInt16(list->name)); |
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break; |
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case TYPE_INT32: |
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fprintf(f, "%s %ld\n", list->name, PrefsFindInt32(list->name)); |
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break; |
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default: |
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break; |
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} |
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list++; |
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} |
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} |
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|
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void SavePrefsToStream(FILE *f) |
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{ |
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write_prefs(f, common_prefs_items); |
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write_prefs(f, platform_prefs_items); |
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} |
