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/* |
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* main_unix.cpp - Startup code for Unix |
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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 "sysdeps.h" |
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|
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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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|
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#include "cpu_emulation.h" |
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#include "sys.h" |
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#include "rom_patches.h" |
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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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|
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#define DEBUG 0 |
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#include "debug.h" |
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|
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|
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#include <X11/Xlib.h> |
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|
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#if ENABLE_GTK |
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#include <gtk/gtk.h> |
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#endif |
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|
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#if ENABLE_DGA |
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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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|
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|
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// Constants |
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const char ROM_FILE_NAME[] = "ROM"; |
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|
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|
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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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|
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|
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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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|
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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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|
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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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|
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static pthread_mutex_t intflag_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect InterruptFlags |
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|
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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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|
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|
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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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|
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/* |
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* Ersatz functions |
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*/ |
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|
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extern "C" { |
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|
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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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|
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|
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/* |
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* Main program |
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*/ |
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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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|
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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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|
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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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} |
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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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|
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#if ENABLE_DGA |
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// Fork out, so we can return from fullscreen mode when things get ugly |
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XF86DGAForkApp(DefaultScreen(x_display)); |
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#endif |
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|
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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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|
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// Read preferences |
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PrefsInit(); |
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|
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// Init system routines |
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SysInit(); |
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|
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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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|
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// Create area for Mac RAM |
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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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RAMBaseHost = new uint8[RAMSize]; |
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|
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// Create area for Mac ROM |
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ROMBaseHost = new uint8[0x100000]; |
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|
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// Get rom file path from preferences |
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const char *rom_path = PrefsFindString("rom"); |
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|
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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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|
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// Initialize everything |
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if (!InitAll()) |
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QuitEmulator(); |
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|
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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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|
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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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if (timer_settime(timer, TIMER_RELTIME, &req, NULL) < 0) { |
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printf("FATAL: cannot start timer\n"); |
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QuitEmulator(); |
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} |
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|
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#else |
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|
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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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|
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// Start 68k and jump to ROM boot routine |
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Start680x0(); |
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|
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QuitEmulator(); |
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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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* Quit emulator |
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*/ |
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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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|
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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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|
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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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|
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// Deinitialize everything |
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ExitAll(); |
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|
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// Delete ROM area |
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delete[] ROMBaseHost; |
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|
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// Delete RAM area |
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delete[] RAMBaseHost; |
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|
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// Exit system routines |
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SysExit(); |
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|
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// Exit preferences |
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PrefsExit(); |
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|
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// Close X11 server connection |
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if (x_display) |
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XCloseDisplay(x_display); |
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|
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exit(0); |
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} |
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|
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|
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/* |
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* Code was patched, flush caches if neccessary (i.e. when using a real 680x0 |
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* or a dynamically recompiling emulator) |
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*/ |
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|
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#if EMULATED_68K |
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void FlushCodeCache(void *start, uint32 size) |
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{ |
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} |
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#endif |
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|
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|
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/* |
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* Interrupt flags (must be handled atomically!) |
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*/ |
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|
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uint32 InterruptFlags = 0; |
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|
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void SetInterruptFlag(uint32 flag) |
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{ |
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pthread_mutex_lock(&intflag_lock); |
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InterruptFlags |= flag; |
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pthread_mutex_unlock(&intflag_lock); |
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} |
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|
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void ClearInterruptFlag(uint32 flag) |
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{ |
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pthread_mutex_lock(&intflag_lock); |
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InterruptFlags &= ~flag; |
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pthread_mutex_unlock(&intflag_lock); |
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} |
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|
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|
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/* |
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* 60Hz thread (really 60.15Hz) |
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*/ |
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|
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static void one_tick(...) |
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{ |
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static int tick_counter = 0; |
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|
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// Pseudo Mac 1Hz interrupt, update local time |
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if (++tick_counter > 60) { |
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tick_counter = 0; |
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WriteMacInt32(0x20c, TimerDateTime()); |
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} |
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|
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// Trigger 60Hz interrupt |
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if (ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted()) { |
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SetInterruptFlag(INTFLAG_60HZ); |
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TriggerInterrupt(); |
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} |
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} |
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|
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static void *tick_func(void *arg) |
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{ |
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while (!tick_thread_cancel) { |
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|
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// Wait |
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#ifdef HAVE_NANOSLEEP |
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struct timespec req = {0, 16625000}; |
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nanosleep(&req, NULL); |
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#else |
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usleep(16625); |
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#endif |
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|
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// Action |
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one_tick(); |
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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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* XPRAM watchdog thread (saves XPRAM every minute) |
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*/ |
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|
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void *xpram_func(void *arg) |
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{ |
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uint8 last_xpram[256]; |
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memcpy(last_xpram, XPRAM, 256); |
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|
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while (!xpram_thread_cancel) { |
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for (int i=0; i<60 && !xpram_thread_cancel; i++) { |
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#ifdef HAVE_NANOSLEEP |
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struct timespec req = {1, 0}; |
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nanosleep(&req, NULL); |
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#else |
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usleep(1000000); |
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#endif |
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} |
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if (memcmp(last_xpram, XPRAM, 256)) { |
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memcpy(last_xpram, XPRAM, 256); |
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SaveXPRAM(); |
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} |
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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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* Display alert |
420 |
*/ |
421 |
|
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#if ENABLE_GTK |
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static void dl_destroyed(void) |
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{ |
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gtk_main_quit(); |
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} |
427 |
|
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static void dl_quit(GtkWidget *dialog) |
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{ |
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gtk_widget_destroy(dialog); |
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} |
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|
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void display_alert(int title_id, int prefix_id, int button_id, const char *text) |
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{ |
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char str[256]; |
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sprintf(str, GetString(prefix_id), text); |
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|
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GtkWidget *dialog = gtk_dialog_new(); |
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gtk_window_set_title(GTK_WINDOW(dialog), GetString(title_id)); |
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gtk_container_border_width(GTK_CONTAINER(dialog), 5); |
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gtk_widget_set_uposition(GTK_WIDGET(dialog), 100, 150); |
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gtk_signal_connect(GTK_OBJECT(dialog), "destroy", GTK_SIGNAL_FUNC(dl_destroyed), NULL); |
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|
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GtkWidget *label = gtk_label_new(str); |
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gtk_widget_show(label); |
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gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->vbox), label, TRUE, TRUE, 0); |
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|
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GtkWidget *button = gtk_button_new_with_label(GetString(button_id)); |
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gtk_widget_show(button); |
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gtk_signal_connect_object(GTK_OBJECT(button), "clicked", GTK_SIGNAL_FUNC(dl_quit), GTK_OBJECT(dialog)); |
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gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog)->action_area), button, FALSE, FALSE, 0); |
452 |
GTK_WIDGET_SET_FLAGS(button, GTK_CAN_DEFAULT); |
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gtk_widget_grab_default(button); |
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gtk_widget_show(dialog); |
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|
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gtk_main(); |
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} |
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#endif |
459 |
|
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|
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/* |
462 |
* Display error alert |
463 |
*/ |
464 |
|
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void ErrorAlert(const char *text) |
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{ |
467 |
#if ENABLE_GTK |
468 |
if (PrefsFindBool("nogui") || x_display == NULL) { |
469 |
printf(GetString(STR_SHELL_ERROR_PREFIX), text); |
470 |
return; |
471 |
} |
472 |
VideoQuitFullScreen(); |
473 |
display_alert(STR_ERROR_ALERT_TITLE, STR_GUI_ERROR_PREFIX, STR_QUIT_BUTTON, text); |
474 |
#else |
475 |
printf(GetString(STR_SHELL_ERROR_PREFIX), text); |
476 |
#endif |
477 |
} |
478 |
|
479 |
|
480 |
/* |
481 |
* Display warning alert |
482 |
*/ |
483 |
|
484 |
void WarningAlert(const char *text) |
485 |
{ |
486 |
#if ENABLE_GTK |
487 |
if (PrefsFindBool("nogui") || x_display == NULL) { |
488 |
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
489 |
return; |
490 |
} |
491 |
display_alert(STR_WARNING_ALERT_TITLE, STR_GUI_WARNING_PREFIX, STR_OK_BUTTON, text); |
492 |
#else |
493 |
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
494 |
#endif |
495 |
} |
496 |
|
497 |
|
498 |
/* |
499 |
* Display choice alert |
500 |
*/ |
501 |
|
502 |
bool ChoiceAlert(const char *text, const char *pos, const char *neg) |
503 |
{ |
504 |
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
505 |
return false; //!! |
506 |
} |