1999-10-03 14:16:26 +00:00
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/*
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* main_unix.cpp - Startup code for Unix
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*
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2000-04-10 18:53:46 +00:00
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* Basilisk II (C) 1997-2000 Christian Bauer
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1999-10-03 14:16:26 +00:00
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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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#include "sysdeps.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <signal.h>
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#include "cpu_emulation.h"
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#include "sys.h"
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1999-10-19 17:41:44 +00:00
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#include "rom_patches.h"
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1999-10-03 14:16:26 +00:00
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#include "xpram.h"
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#include "timer.h"
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#include "video.h"
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#include "prefs.h"
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#include "prefs_editor.h"
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#include "macos_util.h"
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#include "user_strings.h"
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#include "version.h"
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#include "main.h"
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1999-10-19 17:41:44 +00:00
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#define DEBUG 0
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1999-10-03 14:16:26 +00:00
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#include "debug.h"
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#include <X11/Xlib.h>
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#if ENABLE_GTK
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#include <gtk/gtk.h>
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#endif
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1999-10-26 16:56:45 +00:00
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#if ENABLE_XF86_DGA
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1999-10-03 14:16:26 +00:00
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <X11/extensions/xf86dga.h>
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#endif
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1999-10-26 16:28:38 +00:00
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#if ENABLE_MON
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#include "mon.h"
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#endif
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1999-11-03 10:56:43 +00:00
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#ifdef USE_MAPPED_MEMORY
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#include <sys/mman.h>
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extern char *address_space, *good_address_map;
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#endif
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1999-10-03 14:16:26 +00:00
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// Constants
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const char ROM_FILE_NAME[] = "ROM";
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// CPU and FPU type, addressing mode
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int CPUType;
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bool CPUIs68060;
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int FPUType;
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bool TwentyFourBitAddressing;
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// Global variables
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static char *x_display_name = NULL; // X11 display name
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Display *x_display = NULL; // X11 display handle
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static bool xpram_thread_active = false; // Flag: XPRAM watchdog installed
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static volatile bool xpram_thread_cancel = false; // Flag: Cancel XPRAM thread
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static pthread_t xpram_thread; // XPRAM watchdog
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static bool tick_thread_active = false; // Flag: 60Hz thread installed
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static volatile bool tick_thread_cancel = false; // Flag: Cancel 60Hz thread
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static pthread_t tick_thread; // 60Hz thread
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static pthread_attr_t tick_thread_attr; // 60Hz thread attributes
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static pthread_mutex_t intflag_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect InterruptFlags
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#if defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
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#define SIG_TIMER SIGRTMIN
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static struct sigaction timer_sa; // sigaction used for timer
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static timer_t timer; // 60Hz timer
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#endif
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1999-10-26 16:28:38 +00:00
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#if ENABLE_MON
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static struct sigaction sigint_sa; // sigaction for SIGINT handler
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static void sigint_handler(...);
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#endif
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1999-10-03 14:16:26 +00:00
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// Prototypes
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static void *xpram_func(void *arg);
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static void *tick_func(void *arg);
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static void one_tick(...);
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/*
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* Ersatz functions
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*/
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extern "C" {
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#ifndef HAVE_STRDUP
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char *strdup(const char *s)
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{
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char *n = (char *)malloc(strlen(s) + 1);
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strcpy(n, s);
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return n;
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}
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#endif
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}
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/*
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* Main program
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*/
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int main(int argc, char **argv)
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{
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// Initialize variables
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RAMBaseHost = NULL;
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ROMBaseHost = NULL;
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srand(time(NULL));
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tzset();
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// Print some info
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printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR);
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printf(" %s\n", GetString(STR_ABOUT_TEXT2));
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// Parse arguments
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for (int i=1; i<argc; i++) {
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if (strcmp(argv[i], "-display") == 0 && ++i < argc)
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x_display_name = argv[i];
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1999-10-26 16:28:38 +00:00
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else if (strcmp(argv[i], "-break") == 0 && ++i < argc)
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ROMBreakpoint = strtol(argv[i], NULL, 0);
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1999-10-27 16:59:54 +00:00
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else if (strcmp(argv[i], "-rominfo") == 0)
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PrintROMInfo = true;
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1999-10-03 14:16:26 +00:00
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}
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// Open display
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x_display = XOpenDisplay(x_display_name);
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if (x_display == NULL) {
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char str[256];
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sprintf(str, GetString(STR_NO_XSERVER_ERR), XDisplayName(x_display_name));
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ErrorAlert(str);
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QuitEmulator();
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}
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1999-10-28 15:33:26 +00:00
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#if ENABLE_XF86_DGA && !ENABLE_MON
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1999-10-03 14:16:26 +00:00
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// Fork out, so we can return from fullscreen mode when things get ugly
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1999-10-07 13:15:15 +00:00
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XF86DGAForkApp(DefaultScreen(x_display));
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1999-10-03 14:16:26 +00:00
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#endif
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#if ENABLE_GTK
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// Init GTK
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gtk_set_locale();
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gtk_init(&argc, &argv);
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#endif
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// Read preferences
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PrefsInit();
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// Init system routines
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SysInit();
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// Show preferences editor
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if (!PrefsFindBool("nogui"))
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if (!PrefsEditor())
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QuitEmulator();
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1999-11-03 10:56:43 +00:00
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// Read RAM size
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1999-10-03 14:16:26 +00:00
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RAMSize = PrefsFindInt32("ramsize") & 0xfff00000; // Round down to 1MB boundary
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if (RAMSize < 1024*1024) {
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WarningAlert(GetString(STR_SMALL_RAM_WARN));
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RAMSize = 1024*1024;
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}
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1999-11-03 10:56:43 +00:00
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// Create areas for Mac RAM and ROM
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#ifdef USE_MAPPED_MEMORY
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int fd = open("/dev/zero", O_RDWR);
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good_address_map = (char *)mmap(NULL, 1<<24, PROT_READ, MAP_PRIVATE, fd, 0);
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address_space = (char *)mmap(NULL, 1<<24, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
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if ((int)address_space < 0 || (int)good_address_map < 0) {
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ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR));
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QuitEmulator();
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}
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RAMBaseHost = (uint8 *)mmap(address_space, RAMSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, fd, 0);
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ROMBaseHost = (uint8 *)mmap(address_space + 0x00400000, 0x80000, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, fd, 0);
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close(fd);
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char *nam = tmpnam(NULL);
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int good_address_fd = open(nam, O_CREAT | O_RDWR, 0600);
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char buffer[4096];
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memset(buffer, 1, sizeof(buffer));
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write(good_address_fd, buffer, sizeof(buffer));
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unlink(nam);
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for (int i=0; i<RAMSize; i+=4096)
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mmap(good_address_map + i, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, good_address_fd, 0);
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for (int i=0; i<0x80000; i+=4096)
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mmap(good_address_map + i + 0x00400000, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, good_address_fd, 0);
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#else
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RAMBaseHost = new uint8[RAMSize];
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1999-10-03 14:16:26 +00:00
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ROMBaseHost = new uint8[0x100000];
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1999-11-03 10:56:43 +00:00
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#endif
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1999-10-03 14:16:26 +00:00
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// Get rom file path from preferences
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const char *rom_path = PrefsFindString("rom");
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// Load Mac ROM
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int rom_fd = open(rom_path ? rom_path : ROM_FILE_NAME, O_RDONLY);
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if (rom_fd < 0) {
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ErrorAlert(GetString(STR_NO_ROM_FILE_ERR));
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QuitEmulator();
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}
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printf(GetString(STR_READING_ROM_FILE));
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ROMSize = lseek(rom_fd, 0, SEEK_END);
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if (ROMSize != 64*1024 && ROMSize != 128*1024 && ROMSize != 256*1024 && ROMSize != 512*1024 && ROMSize != 1024*1024) {
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ErrorAlert(GetString(STR_ROM_SIZE_ERR));
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close(rom_fd);
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QuitEmulator();
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}
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lseek(rom_fd, 0, SEEK_SET);
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if (read(rom_fd, ROMBaseHost, ROMSize) != (ssize_t)ROMSize) {
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ErrorAlert(GetString(STR_ROM_FILE_READ_ERR));
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close(rom_fd);
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QuitEmulator();
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}
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1999-10-19 17:41:44 +00:00
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// Initialize everything
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if (!InitAll())
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1999-10-03 14:16:26 +00:00
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QuitEmulator();
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// Start XPRAM watchdog thread
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xpram_thread_active = (pthread_create(&xpram_thread, NULL, xpram_func, NULL) == 0);
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#if defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
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// Start 60Hz timer
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sigemptyset(&timer_sa.sa_mask);
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timer_sa.sa_flags = SA_SIGINFO | SA_RESTART;
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timer_sa.sa_sigaction = one_tick;
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if (sigaction(SIG_TIMER, &timer_sa, NULL) < 0) {
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printf("FATAL: cannot set up timer signal handler\n");
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QuitEmulator();
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}
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struct sigevent timer_event;
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timer_event.sigev_notify = SIGEV_SIGNAL;
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timer_event.sigev_signo = SIG_TIMER;
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if (timer_create(CLOCK_REALTIME, &timer_event, &timer) < 0) {
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printf("FATAL: cannot create timer\n");
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QuitEmulator();
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}
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struct itimerspec req;
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req.it_value.tv_sec = 0;
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req.it_value.tv_nsec = 16625000;
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req.it_interval.tv_sec = 0;
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req.it_interval.tv_nsec = 16625000;
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2000-01-21 13:47:05 +00:00
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if (timer_settime(timer, 0, &req, NULL) < 0) {
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1999-10-03 14:16:26 +00:00
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printf("FATAL: cannot start timer\n");
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QuitEmulator();
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}
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#else
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// Start 60Hz thread
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pthread_attr_init(&tick_thread_attr);
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#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING)
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if (geteuid() == 0) {
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pthread_attr_setinheritsched(&tick_thread_attr, PTHREAD_EXPLICIT_SCHED);
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pthread_attr_setschedpolicy(&tick_thread_attr, SCHED_FIFO);
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struct sched_param fifo_param;
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fifo_param.sched_priority = (sched_get_priority_min(SCHED_FIFO) + sched_get_priority_max(SCHED_FIFO)) / 2;
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pthread_attr_setschedparam(&tick_thread_attr, &fifo_param);
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}
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#endif
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tick_thread_active = (pthread_create(&tick_thread, &tick_thread_attr, tick_func, NULL) == 0);
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if (!tick_thread_active) {
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printf("FATAL: cannot create tick thread\n");
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QuitEmulator();
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}
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#endif
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1999-10-26 16:28:38 +00:00
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#if ENABLE_MON
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// Setup SIGINT handler to enter mon
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sigemptyset(&sigint_sa.sa_mask);
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sigint_sa.sa_flags = 0;
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sigint_sa.sa_handler = sigint_handler;
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sigaction(SIGINT, &sigint_sa, NULL);
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#endif
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1999-10-03 14:16:26 +00:00
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// Start 68k and jump to ROM boot routine
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Start680x0();
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QuitEmulator();
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return 0;
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}
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/*
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* Quit emulator
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*/
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void QuitEmulator(void)
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{
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// Exit 680x0 emulation
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Exit680x0();
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#if defined(HAVE_TIMER_CREATE) && defined(_POSIX_REALTIME_SIGNALS)
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// Stop 60Hz timer
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timer_delete(timer);
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#else
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// Stop 60Hz thread
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if (tick_thread_active) {
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tick_thread_cancel = true;
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#ifdef HAVE_PTHREAD_CANCEL
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pthread_cancel(tick_thread);
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#endif
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pthread_join(tick_thread, NULL);
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}
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#endif
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// Stop XPRAM watchdog thread
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if (xpram_thread_active) {
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xpram_thread_cancel = true;
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#ifdef HAVE_PTHREAD_CANCEL
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pthread_cancel(xpram_thread);
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#endif
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pthread_join(xpram_thread, NULL);
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}
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1999-10-19 17:41:44 +00:00
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// Deinitialize everything
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ExitAll();
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1999-10-03 14:16:26 +00:00
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|
|
|
|
|
// Delete ROM area
|
|
|
|
delete[] ROMBaseHost;
|
|
|
|
|
|
|
|
// Delete RAM area
|
|
|
|
delete[] RAMBaseHost;
|
|
|
|
|
|
|
|
// Exit system routines
|
|
|
|
SysExit();
|
|
|
|
|
|
|
|
// Exit preferences
|
|
|
|
PrefsExit();
|
|
|
|
|
|
|
|
// Close X11 server connection
|
|
|
|
if (x_display)
|
|
|
|
XCloseDisplay(x_display);
|
|
|
|
|
|
|
|
exit(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Code was patched, flush caches if neccessary (i.e. when using a real 680x0
|
|
|
|
* or a dynamically recompiling emulator)
|
|
|
|
*/
|
|
|
|
|
|
|
|
#if EMULATED_68K
|
|
|
|
void FlushCodeCache(void *start, uint32 size)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
1999-10-26 16:28:38 +00:00
|
|
|
/*
|
|
|
|
* SIGINT handler, enters mon
|
|
|
|
*/
|
|
|
|
|
|
|
|
#if ENABLE_MON
|
1999-10-31 23:18:44 +00:00
|
|
|
extern void m68k_dumpstate(uaecptr *nextpc);
|
1999-10-26 16:28:38 +00:00
|
|
|
static void sigint_handler(...)
|
|
|
|
{
|
1999-10-31 23:18:44 +00:00
|
|
|
uaecptr nextpc;
|
|
|
|
m68k_dumpstate(&nextpc);
|
1999-10-26 16:28:38 +00:00
|
|
|
char *arg[2] = {"rmon", NULL};
|
|
|
|
mon(1, arg);
|
|
|
|
QuitEmulator();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
1999-10-03 14:16:26 +00:00
|
|
|
/*
|
|
|
|
* Interrupt flags (must be handled atomically!)
|
|
|
|
*/
|
|
|
|
|
|
|
|
uint32 InterruptFlags = 0;
|
|
|
|
|
|
|
|
void SetInterruptFlag(uint32 flag)
|
|
|
|
{
|
|
|
|
pthread_mutex_lock(&intflag_lock);
|
|
|
|
InterruptFlags |= flag;
|
|
|
|
pthread_mutex_unlock(&intflag_lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
void ClearInterruptFlag(uint32 flag)
|
|
|
|
{
|
|
|
|
pthread_mutex_lock(&intflag_lock);
|
|
|
|
InterruptFlags &= ~flag;
|
|
|
|
pthread_mutex_unlock(&intflag_lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* 60Hz thread (really 60.15Hz)
|
|
|
|
*/
|
|
|
|
|
|
|
|
static void one_tick(...)
|
|
|
|
{
|
|
|
|
static int tick_counter = 0;
|
|
|
|
|
|
|
|
// Pseudo Mac 1Hz interrupt, update local time
|
|
|
|
if (++tick_counter > 60) {
|
|
|
|
tick_counter = 0;
|
|
|
|
WriteMacInt32(0x20c, TimerDateTime());
|
|
|
|
}
|
|
|
|
|
|
|
|
// Trigger 60Hz interrupt
|
|
|
|
if (ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted()) {
|
|
|
|
SetInterruptFlag(INTFLAG_60HZ);
|
|
|
|
TriggerInterrupt();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void *tick_func(void *arg)
|
|
|
|
{
|
|
|
|
while (!tick_thread_cancel) {
|
|
|
|
|
|
|
|
// Wait
|
|
|
|
#ifdef HAVE_NANOSLEEP
|
|
|
|
struct timespec req = {0, 16625000};
|
|
|
|
nanosleep(&req, NULL);
|
|
|
|
#else
|
|
|
|
usleep(16625);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
// Action
|
|
|
|
one_tick();
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XPRAM watchdog thread (saves XPRAM every minute)
|
|
|
|
*/
|
|
|
|
|
|
|
|
void *xpram_func(void *arg)
|
|
|
|
{
|
|
|
|
uint8 last_xpram[256];
|
|
|
|
memcpy(last_xpram, XPRAM, 256);
|
|
|
|
|
|
|
|
while (!xpram_thread_cancel) {
|
|
|
|
for (int i=0; i<60 && !xpram_thread_cancel; i++) {
|
|
|
|
#ifdef HAVE_NANOSLEEP
|
|
|
|
struct timespec req = {1, 0};
|
|
|
|
nanosleep(&req, NULL);
|
|
|
|
#else
|
|
|
|
usleep(1000000);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
if (memcmp(last_xpram, XPRAM, 256)) {
|
|
|
|
memcpy(last_xpram, XPRAM, 256);
|
|
|
|
SaveXPRAM();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
#if ENABLE_GTK
|
|
|
|
static void dl_destroyed(void)
|
|
|
|
{
|
|
|
|
gtk_main_quit();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dl_quit(GtkWidget *dialog)
|
|
|
|
{
|
|
|
|
gtk_widget_destroy(dialog);
|
|
|
|
}
|
|
|
|
|
|
|
|
void display_alert(int title_id, int prefix_id, int button_id, const char *text)
|
|
|
|
{
|
|
|
|
char str[256];
|
|
|
|
sprintf(str, GetString(prefix_id), text);
|
|
|
|
|
|
|
|
GtkWidget *dialog = gtk_dialog_new();
|
|
|
|
gtk_window_set_title(GTK_WINDOW(dialog), GetString(title_id));
|
|
|
|
gtk_container_border_width(GTK_CONTAINER(dialog), 5);
|
|
|
|
gtk_widget_set_uposition(GTK_WIDGET(dialog), 100, 150);
|
|
|
|
gtk_signal_connect(GTK_OBJECT(dialog), "destroy", GTK_SIGNAL_FUNC(dl_destroyed), NULL);
|
|
|
|
|
|
|
|
GtkWidget *label = gtk_label_new(str);
|
|
|
|
gtk_widget_show(label);
|
|
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0);
|
|
|
|
|
|
|
|
GtkWidget *button = gtk_button_new_with_label(GetString(button_id));
|
|
|
|
gtk_widget_show(button);
|
|
|
|
gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(dl_quit), GTK_OBJECT(dialog));
|
|
|
|
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, FALSE, FALSE, 0);
|
|
|
|
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT);
|
|
|
|
gtk_widget_grab_default(button);
|
|
|
|
gtk_widget_show(dialog);
|
|
|
|
|
|
|
|
gtk_main();
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display error alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
void ErrorAlert(const char *text)
|
|
|
|
{
|
|
|
|
#if ENABLE_GTK
|
|
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
VideoQuitFullScreen();
|
|
|
|
display_alert(STR_ERROR_ALERT_TITLE, STR_GUI_ERROR_PREFIX, STR_QUIT_BUTTON, text);
|
|
|
|
#else
|
|
|
|
printf(GetString(STR_SHELL_ERROR_PREFIX), text);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display warning alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
void WarningAlert(const char *text)
|
|
|
|
{
|
|
|
|
#if ENABLE_GTK
|
|
|
|
if (PrefsFindBool("nogui") || x_display == NULL) {
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
display_alert(STR_WARNING_ALERT_TITLE, STR_GUI_WARNING_PREFIX, STR_OK_BUTTON, text);
|
|
|
|
#else
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Display choice alert
|
|
|
|
*/
|
|
|
|
|
|
|
|
bool ChoiceAlert(const char *text, const char *pos, const char *neg)
|
|
|
|
{
|
|
|
|
printf(GetString(STR_SHELL_WARNING_PREFIX), text);
|
|
|
|
return false; //!!
|
|
|
|
}
|