| 1 |
/* |
| 2 |
* main_windows.cpp - Startup code for Windows |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2008 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include "sysdeps.h" |
| 22 |
|
| 23 |
#include <stdio.h> |
| 24 |
#include <stdlib.h> |
| 25 |
#include <signal.h> |
| 26 |
#include <errno.h> |
| 27 |
|
| 28 |
#include <SDL.h> |
| 29 |
#include <SDL_mutex.h> |
| 30 |
#include <SDL_thread.h> |
| 31 |
|
| 32 |
#include <string> |
| 33 |
using std::string; |
| 34 |
|
| 35 |
#include "cpu_emulation.h" |
| 36 |
#include "sys.h" |
| 37 |
#include "rom_patches.h" |
| 38 |
#include "xpram.h" |
| 39 |
#include "timer.h" |
| 40 |
#include "video.h" |
| 41 |
#include "cdrom.h" |
| 42 |
#include "emul_op.h" |
| 43 |
#include "prefs.h" |
| 44 |
#include "prefs_editor.h" |
| 45 |
#include "macos_util.h" |
| 46 |
#include "user_strings.h" |
| 47 |
#include "version.h" |
| 48 |
#include "main.h" |
| 49 |
#include "vm_alloc.h" |
| 50 |
#include "sigsegv.h" |
| 51 |
#include "util_windows.h" |
| 52 |
#include "kernel_windows.h" |
| 53 |
|
| 54 |
#if USE_JIT |
| 55 |
extern void flush_icache_range(uint8 *start, uint32 size); // from compemu_support.cpp |
| 56 |
#endif |
| 57 |
|
| 58 |
#ifdef ENABLE_MON |
| 59 |
# include "mon.h" |
| 60 |
#endif |
| 61 |
|
| 62 |
#define DEBUG 0 |
| 63 |
#include "debug.h" |
| 64 |
|
| 65 |
|
| 66 |
// Constants |
| 67 |
const char ROM_FILE_NAME[] = "ROM"; |
| 68 |
const int SCRATCH_MEM_SIZE = 0x10000; // Size of scratch memory area |
| 69 |
|
| 70 |
|
| 71 |
// CPU and FPU type, addressing mode |
| 72 |
int CPUType; |
| 73 |
bool CPUIs68060; |
| 74 |
int FPUType; |
| 75 |
bool TwentyFourBitAddressing; |
| 76 |
|
| 77 |
|
| 78 |
// Global variables |
| 79 |
HANDLE emul_thread = NULL; // Handle of MacOS emulation thread (main thread) |
| 80 |
|
| 81 |
static uint8 last_xpram[XPRAM_SIZE]; // Buffer for monitoring XPRAM changes |
| 82 |
static bool xpram_thread_active = false; // Flag: XPRAM watchdog installed |
| 83 |
static volatile bool xpram_thread_cancel = false; // Flag: Cancel XPRAM thread |
| 84 |
static SDL_Thread *xpram_thread = NULL; // XPRAM watchdog |
| 85 |
|
| 86 |
static bool tick_thread_active = false; // Flag: 60Hz thread installed |
| 87 |
static volatile bool tick_thread_cancel = false; // Flag: Cancel 60Hz thread |
| 88 |
static SDL_Thread *tick_thread; // 60Hz thread |
| 89 |
|
| 90 |
static SDL_mutex *intflag_lock = NULL; // Mutex to protect InterruptFlags |
| 91 |
#define LOCK_INTFLAGS SDL_LockMutex(intflag_lock) |
| 92 |
#define UNLOCK_INTFLAGS SDL_UnlockMutex(intflag_lock) |
| 93 |
|
| 94 |
DWORD win_os; // Windows OS id |
| 95 |
DWORD win_os_major; // Windows OS version major |
| 96 |
|
| 97 |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 98 |
uint8 *ScratchMem = NULL; // Scratch memory for Mac ROM writes |
| 99 |
#endif |
| 100 |
|
| 101 |
#if REAL_ADDRESSING |
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static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 103 |
#endif |
| 104 |
|
| 105 |
|
| 106 |
// Prototypes |
| 107 |
static int xpram_func(void *arg); |
| 108 |
static int tick_func(void *arg); |
| 109 |
static void one_tick(...); |
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|
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|
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/* |
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* Ersatz functions |
| 114 |
*/ |
| 115 |
|
| 116 |
extern "C" { |
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|
| 118 |
#ifndef HAVE_STRDUP |
| 119 |
char *strdup(const char *s) |
| 120 |
{ |
| 121 |
char *n = (char *)malloc(strlen(s) + 1); |
| 122 |
strcpy(n, s); |
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return n; |
| 124 |
} |
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#endif |
| 126 |
|
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} |
| 128 |
|
| 129 |
|
| 130 |
/* |
| 131 |
* Map memory that can be accessed from the Mac side |
| 132 |
*/ |
| 133 |
|
| 134 |
void *vm_acquire_mac(size_t size) |
| 135 |
{ |
| 136 |
return vm_acquire(size, VM_MAP_DEFAULT | VM_MAP_32BIT); |
| 137 |
} |
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|
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|
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/* |
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* SIGSEGV handler |
| 142 |
*/ |
| 143 |
|
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static sigsegv_return_t sigsegv_handler(sigsegv_info_t *sip) |
| 145 |
{ |
| 146 |
const uintptr fault_address = (uintptr)sigsegv_get_fault_address(sip); |
| 147 |
#if ENABLE_VOSF |
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// Handle screen fault |
| 149 |
extern bool Screen_fault_handler(sigsegv_info_t *sip); |
| 150 |
if (Screen_fault_handler(sip)) |
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return SIGSEGV_RETURN_SUCCESS; |
| 152 |
#endif |
| 153 |
|
| 154 |
#ifdef HAVE_SIGSEGV_SKIP_INSTRUCTION |
| 155 |
// Ignore writes to ROM |
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if (((uintptr)fault_address - (uintptr)ROMBaseHost) < ROMSize) |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
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|
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// Ignore all other faults, if requested |
| 160 |
if (PrefsFindBool("ignoresegv")) |
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return SIGSEGV_RETURN_SKIP_INSTRUCTION; |
| 162 |
#endif |
| 163 |
|
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return SIGSEGV_RETURN_FAILURE; |
| 165 |
} |
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|
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/* |
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* Dump state when everything went wrong after a SEGV |
| 169 |
*/ |
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|
| 171 |
static void sigsegv_dump_state(sigsegv_info_t *sip) |
| 172 |
{ |
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const sigsegv_address_t fault_address = sigsegv_get_fault_address(sip); |
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const sigsegv_address_t fault_instruction = sigsegv_get_fault_instruction_address(sip); |
| 175 |
fprintf(stderr, "Caught SIGSEGV at address %p", fault_address); |
| 176 |
if (fault_instruction != SIGSEGV_INVALID_ADDRESS) |
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fprintf(stderr, " [IP=%p]", fault_instruction); |
| 178 |
fprintf(stderr, "\n"); |
| 179 |
uaecptr nextpc; |
| 180 |
extern void m68k_dumpstate(uaecptr *nextpc); |
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m68k_dumpstate(&nextpc); |
| 182 |
#if USE_JIT && JIT_DEBUG |
| 183 |
extern void compiler_dumpstate(void); |
| 184 |
compiler_dumpstate(); |
| 185 |
#endif |
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VideoQuitFullScreen(); |
| 187 |
#ifdef ENABLE_MON |
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char *arg[4] = {"mon", "-m", "-r", NULL}; |
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mon(3, arg); |
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QuitEmulator(); |
| 191 |
#endif |
| 192 |
} |
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|
| 194 |
|
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/* |
| 196 |
* Main program |
| 197 |
*/ |
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|
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static void usage(const char *prg_name) |
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{ |
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printf( |
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"Usage: %s [OPTION...]\n" |
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"\nUnix options:\n" |
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" --config FILE\n read/write configuration from/to FILE\n" |
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" --display STRING\n X display to use\n" |
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" --break ADDRESS\n set ROM breakpoint\n" |
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" --rominfo\n dump ROM information\n", prg_name |
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); |
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LoadPrefs(NULL); // read the prefs file so PrefsPrintUsage() will print the correct default values |
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PrefsPrintUsage(); |
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exit(0); |
| 212 |
} |
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|
| 214 |
int main(int argc, char **argv) |
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{ |
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char str[256]; |
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bool cd_boot = false; |
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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); |
| 227 |
printf(" %s\n", GetString(STR_ABOUT_TEXT2)); |
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|
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// Parse command line arguments |
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for (int i=1; i<argc; i++) { |
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if (strcmp(argv[i], "--help") == 0) { |
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usage(argv[0]); |
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} else if (strcmp(argv[i], "--break") == 0) { |
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argv[i++] = NULL; |
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if (i < argc) { |
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ROMBreakpoint = strtol(argv[i], NULL, 0); |
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argv[i] = NULL; |
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} |
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} else if (strcmp(argv[i], "--config") == 0) { |
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argv[i++] = NULL; |
| 241 |
if (i < argc) { |
| 242 |
extern string UserPrefsPath; // from prefs_unix.cpp |
| 243 |
UserPrefsPath = argv[i]; |
| 244 |
argv[i] = NULL; |
| 245 |
} |
| 246 |
} else if (strcmp(argv[i], "--rominfo") == 0) { |
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argv[i] = NULL; |
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PrintROMInfo = true; |
| 249 |
} else if (strcmp(argv[i], "--cdboot") == 0) { |
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argv[i] = NULL; |
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cd_boot = true; |
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} |
| 253 |
} |
| 254 |
|
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// Remove processed arguments |
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for (int i=1; i<argc; i++) { |
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int k; |
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for (k=i; k<argc; k++) |
| 259 |
if (argv[k] != NULL) |
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break; |
| 261 |
if (k > i) { |
| 262 |
k -= i; |
| 263 |
for (int j=i+k; j<argc; j++) |
| 264 |
argv[j-k] = argv[j]; |
| 265 |
argc -= k; |
| 266 |
} |
| 267 |
} |
| 268 |
|
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// Read preferences |
| 270 |
PrefsInit(NULL, argc, argv); |
| 271 |
|
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// Boot MacOS from CD-ROM? |
| 273 |
if (cd_boot) |
| 274 |
PrefsReplaceInt32("bootdriver", CDROMRefNum); |
| 275 |
|
| 276 |
// Any command line arguments left? |
| 277 |
for (int i=1; i<argc; i++) { |
| 278 |
if (argv[i][0] == '-') { |
| 279 |
fprintf(stderr, "Unrecognized option '%s'\n", argv[i]); |
| 280 |
usage(argv[0]); |
| 281 |
} |
| 282 |
} |
| 283 |
|
| 284 |
// Check we are using a Windows NT kernel >= 4.0 |
| 285 |
OSVERSIONINFO osvi; |
| 286 |
ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); |
| 287 |
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); |
| 288 |
if (!GetVersionEx(&osvi)) { |
| 289 |
ErrorAlert("Could not determine OS type"); |
| 290 |
QuitEmulator(); |
| 291 |
} |
| 292 |
win_os = osvi.dwPlatformId; |
| 293 |
win_os_major = osvi.dwMajorVersion; |
| 294 |
if (win_os != VER_PLATFORM_WIN32_NT || win_os_major < 4) { |
| 295 |
ErrorAlert(STR_NO_WIN32_NT_4); |
| 296 |
QuitEmulator(); |
| 297 |
} |
| 298 |
|
| 299 |
// Check that drivers are installed |
| 300 |
if (!check_drivers()) |
| 301 |
QuitEmulator(); |
| 302 |
|
| 303 |
// Load win32 libraries |
| 304 |
KernelInit(); |
| 305 |
|
| 306 |
// FIXME: default to DIB driver |
| 307 |
if (getenv("SDL_VIDEODRIVER") == NULL) |
| 308 |
putenv("SDL_VIDEODRIVER=windib"); |
| 309 |
|
| 310 |
// Initialize SDL system |
| 311 |
int sdl_flags = 0; |
| 312 |
#ifdef USE_SDL_VIDEO |
| 313 |
sdl_flags |= SDL_INIT_VIDEO; |
| 314 |
#endif |
| 315 |
#ifdef USE_SDL_AUDIO |
| 316 |
sdl_flags |= SDL_INIT_AUDIO; |
| 317 |
#endif |
| 318 |
assert(sdl_flags != 0); |
| 319 |
if (SDL_Init(sdl_flags) == -1) { |
| 320 |
char str[256]; |
| 321 |
sprintf(str, "Could not initialize SDL: %s.\n", SDL_GetError()); |
| 322 |
ErrorAlert(str); |
| 323 |
QuitEmulator(); |
| 324 |
} |
| 325 |
atexit(SDL_Quit); |
| 326 |
|
| 327 |
// Init system routines |
| 328 |
SysInit(); |
| 329 |
|
| 330 |
// Show preferences editor |
| 331 |
if (!PrefsFindBool("nogui")) |
| 332 |
if (!PrefsEditor()) |
| 333 |
QuitEmulator(); |
| 334 |
|
| 335 |
// Install the handler for SIGSEGV |
| 336 |
if (!sigsegv_install_handler(sigsegv_handler)) { |
| 337 |
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIGSEGV", strerror(errno)); |
| 338 |
ErrorAlert(str); |
| 339 |
QuitEmulator(); |
| 340 |
} |
| 341 |
|
| 342 |
// Register dump state function when we got mad after a segfault |
| 343 |
sigsegv_set_dump_state(sigsegv_dump_state); |
| 344 |
|
| 345 |
// Read RAM size |
| 346 |
RAMSize = PrefsFindInt32("ramsize") & 0xfff00000; // Round down to 1MB boundary |
| 347 |
if (RAMSize < 1024*1024) { |
| 348 |
WarningAlert(GetString(STR_SMALL_RAM_WARN)); |
| 349 |
RAMSize = 1024*1024; |
| 350 |
} |
| 351 |
|
| 352 |
// Initialize VM system |
| 353 |
vm_init(); |
| 354 |
|
| 355 |
// Create areas for Mac RAM and ROM |
| 356 |
RAMBaseHost = (uint8 *)vm_acquire_mac(RAMSize); |
| 357 |
ROMBaseHost = (uint8 *)vm_acquire_mac(0x100000); |
| 358 |
if (RAMBaseHost == VM_MAP_FAILED || ROMBaseHost == VM_MAP_FAILED) { |
| 359 |
ErrorAlert(STR_NO_MEM_ERR); |
| 360 |
QuitEmulator(); |
| 361 |
} |
| 362 |
|
| 363 |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 364 |
// Allocate scratch memory |
| 365 |
ScratchMem = (uint8 *)vm_acquire(SCRATCH_MEM_SIZE); |
| 366 |
if (ScratchMem == VM_MAP_FAILED) { |
| 367 |
ErrorAlert(STR_NO_MEM_ERR); |
| 368 |
QuitEmulator(); |
| 369 |
} |
| 370 |
ScratchMem += SCRATCH_MEM_SIZE/2; // ScratchMem points to middle of block |
| 371 |
#endif |
| 372 |
|
| 373 |
#if DIRECT_ADDRESSING |
| 374 |
// RAMBaseMac shall always be zero |
| 375 |
MEMBaseDiff = (uintptr)RAMBaseHost; |
| 376 |
RAMBaseMac = 0; |
| 377 |
ROMBaseMac = Host2MacAddr(ROMBaseHost); |
| 378 |
#endif |
| 379 |
D(bug("Mac RAM starts at %p (%08x)\n", RAMBaseHost, RAMBaseMac)); |
| 380 |
D(bug("Mac ROM starts at %p (%08x)\n", ROMBaseHost, ROMBaseMac)); |
| 381 |
|
| 382 |
// Get rom file path from preferences |
| 383 |
const char *rom_path = PrefsFindString("rom"); |
| 384 |
|
| 385 |
// Load Mac ROM |
| 386 |
HANDLE rom_fh = CreateFile(rom_path ? rom_path : ROM_FILE_NAME, |
| 387 |
GENERIC_READ, |
| 388 |
0, NULL, |
| 389 |
OPEN_EXISTING, |
| 390 |
FILE_ATTRIBUTE_NORMAL, |
| 391 |
NULL); |
| 392 |
if (rom_fh == INVALID_HANDLE_VALUE) { |
| 393 |
ErrorAlert(STR_NO_ROM_FILE_ERR); |
| 394 |
QuitEmulator(); |
| 395 |
} |
| 396 |
printf(GetString(STR_READING_ROM_FILE)); |
| 397 |
ROMSize = GetFileSize(rom_fh, NULL); |
| 398 |
if (ROMSize != 64*1024 && ROMSize != 128*1024 && ROMSize != 256*1024 && ROMSize != 512*1024 && ROMSize != 1024*1024) { |
| 399 |
ErrorAlert(STR_ROM_SIZE_ERR); |
| 400 |
CloseHandle(rom_fh); |
| 401 |
QuitEmulator(); |
| 402 |
} |
| 403 |
DWORD bytes_read; |
| 404 |
if (ReadFile(rom_fh, ROMBaseHost, ROMSize, &bytes_read, NULL) == 0 || bytes_read != ROMSize) { |
| 405 |
ErrorAlert(STR_ROM_FILE_READ_ERR); |
| 406 |
CloseHandle(rom_fh); |
| 407 |
QuitEmulator(); |
| 408 |
} |
| 409 |
|
| 410 |
// Initialize native timers |
| 411 |
timer_init(); |
| 412 |
|
| 413 |
// Initialize everything |
| 414 |
if (!InitAll(NULL)) |
| 415 |
QuitEmulator(); |
| 416 |
D(bug("Initialization complete\n")); |
| 417 |
|
| 418 |
// Get handle of main thread |
| 419 |
emul_thread = GetCurrentThread(); |
| 420 |
|
| 421 |
// SDL threads available, start 60Hz thread |
| 422 |
tick_thread_active = ((tick_thread = SDL_CreateThread(tick_func, NULL)) != NULL); |
| 423 |
if (!tick_thread_active) { |
| 424 |
sprintf(str, GetString(STR_TICK_THREAD_ERR), strerror(errno)); |
| 425 |
ErrorAlert(str); |
| 426 |
QuitEmulator(); |
| 427 |
} |
| 428 |
D(bug("60Hz thread started\n")); |
| 429 |
|
| 430 |
// Start XPRAM watchdog thread |
| 431 |
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
| 432 |
xpram_thread_active = ((xpram_thread = SDL_CreateThread(xpram_func, NULL)) != NULL); |
| 433 |
D(bug("XPRAM thread started\n")); |
| 434 |
|
| 435 |
// Start 68k and jump to ROM boot routine |
| 436 |
D(bug("Starting emulation...\n")); |
| 437 |
Start680x0(); |
| 438 |
|
| 439 |
QuitEmulator(); |
| 440 |
return 0; |
| 441 |
} |
| 442 |
|
| 443 |
|
| 444 |
/* |
| 445 |
* Quit emulator |
| 446 |
*/ |
| 447 |
|
| 448 |
void QuitEmulator(void) |
| 449 |
{ |
| 450 |
D(bug("QuitEmulator\n")); |
| 451 |
|
| 452 |
// Exit 680x0 emulation |
| 453 |
Exit680x0(); |
| 454 |
|
| 455 |
// Stop 60Hz thread |
| 456 |
if (tick_thread_active) { |
| 457 |
tick_thread_cancel = true; |
| 458 |
SDL_WaitThread(tick_thread, NULL); |
| 459 |
} |
| 460 |
|
| 461 |
// Stop XPRAM watchdog thread |
| 462 |
if (xpram_thread_active) { |
| 463 |
xpram_thread_cancel = true; |
| 464 |
SDL_WaitThread(xpram_thread, NULL); |
| 465 |
} |
| 466 |
|
| 467 |
// Deinitialize everything |
| 468 |
ExitAll(); |
| 469 |
|
| 470 |
// Free ROM/RAM areas |
| 471 |
if (RAMBaseHost != VM_MAP_FAILED) { |
| 472 |
vm_release(RAMBaseHost, RAMSize); |
| 473 |
RAMBaseHost = NULL; |
| 474 |
} |
| 475 |
if (ROMBaseHost != VM_MAP_FAILED) { |
| 476 |
vm_release(ROMBaseHost, 0x100000); |
| 477 |
ROMBaseHost = NULL; |
| 478 |
} |
| 479 |
|
| 480 |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 481 |
// Delete scratch memory area |
| 482 |
if (ScratchMem != (uint8 *)VM_MAP_FAILED) { |
| 483 |
vm_release((void *)(ScratchMem - SCRATCH_MEM_SIZE/2), SCRATCH_MEM_SIZE); |
| 484 |
ScratchMem = NULL; |
| 485 |
} |
| 486 |
#endif |
| 487 |
|
| 488 |
// Exit VM wrappers |
| 489 |
vm_exit(); |
| 490 |
|
| 491 |
// Exit system routines |
| 492 |
SysExit(); |
| 493 |
|
| 494 |
// Exit preferences |
| 495 |
PrefsExit(); |
| 496 |
|
| 497 |
// Release win32 libraries |
| 498 |
KernelExit(); |
| 499 |
|
| 500 |
exit(0); |
| 501 |
} |
| 502 |
|
| 503 |
|
| 504 |
/* |
| 505 |
* Code was patched, flush caches if neccessary (i.e. when using a real 680x0 |
| 506 |
* or a dynamically recompiling emulator) |
| 507 |
*/ |
| 508 |
|
| 509 |
void FlushCodeCache(void *start, uint32 size) |
| 510 |
{ |
| 511 |
#if USE_JIT |
| 512 |
if (UseJIT) |
| 513 |
flush_icache_range((uint8 *)start, size); |
| 514 |
#endif |
| 515 |
} |
| 516 |
|
| 517 |
|
| 518 |
/* |
| 519 |
* Mutexes |
| 520 |
*/ |
| 521 |
|
| 522 |
struct B2_mutex { |
| 523 |
B2_mutex() { m = SDL_CreateMutex(); } |
| 524 |
~B2_mutex() { if (m) SDL_DestroyMutex(m); } |
| 525 |
SDL_mutex *m; |
| 526 |
}; |
| 527 |
|
| 528 |
B2_mutex *B2_create_mutex(void) |
| 529 |
{ |
| 530 |
return new B2_mutex; |
| 531 |
} |
| 532 |
|
| 533 |
void B2_lock_mutex(B2_mutex *mutex) |
| 534 |
{ |
| 535 |
if (mutex) |
| 536 |
SDL_LockMutex(mutex->m); |
| 537 |
} |
| 538 |
|
| 539 |
void B2_unlock_mutex(B2_mutex *mutex) |
| 540 |
{ |
| 541 |
if (mutex) |
| 542 |
SDL_UnlockMutex(mutex->m); |
| 543 |
} |
| 544 |
|
| 545 |
void B2_delete_mutex(B2_mutex *mutex) |
| 546 |
{ |
| 547 |
delete mutex; |
| 548 |
} |
| 549 |
|
| 550 |
|
| 551 |
/* |
| 552 |
* Interrupt flags (must be handled atomically!) |
| 553 |
*/ |
| 554 |
|
| 555 |
uint32 InterruptFlags = 0; |
| 556 |
|
| 557 |
void SetInterruptFlag(uint32 flag) |
| 558 |
{ |
| 559 |
LOCK_INTFLAGS; |
| 560 |
InterruptFlags |= flag; |
| 561 |
UNLOCK_INTFLAGS; |
| 562 |
} |
| 563 |
|
| 564 |
void ClearInterruptFlag(uint32 flag) |
| 565 |
{ |
| 566 |
LOCK_INTFLAGS; |
| 567 |
InterruptFlags &= ~flag; |
| 568 |
UNLOCK_INTFLAGS; |
| 569 |
} |
| 570 |
|
| 571 |
|
| 572 |
/* |
| 573 |
* XPRAM watchdog thread (saves XPRAM every minute) |
| 574 |
*/ |
| 575 |
|
| 576 |
static void xpram_watchdog(void) |
| 577 |
{ |
| 578 |
if (memcmp(last_xpram, XPRAM, XPRAM_SIZE)) { |
| 579 |
memcpy(last_xpram, XPRAM, XPRAM_SIZE); |
| 580 |
SaveXPRAM(); |
| 581 |
} |
| 582 |
} |
| 583 |
|
| 584 |
static int xpram_func(void *arg) |
| 585 |
{ |
| 586 |
while (!xpram_thread_cancel) { |
| 587 |
for (int i=0; i<60 && !xpram_thread_cancel; i++) |
| 588 |
Delay_usec(999999); // Only wait 1 second so we quit promptly when xpram_thread_cancel becomes true |
| 589 |
xpram_watchdog(); |
| 590 |
} |
| 591 |
return 0; |
| 592 |
} |
| 593 |
|
| 594 |
|
| 595 |
/* |
| 596 |
* 60Hz thread (really 60.15Hz) |
| 597 |
*/ |
| 598 |
|
| 599 |
static void one_second(void) |
| 600 |
{ |
| 601 |
// Pseudo Mac 1Hz interrupt, update local time |
| 602 |
WriteMacInt32(0x20c, TimerDateTime()); |
| 603 |
|
| 604 |
SetInterruptFlag(INTFLAG_1HZ); |
| 605 |
TriggerInterrupt(); |
| 606 |
} |
| 607 |
|
| 608 |
static void one_tick(...) |
| 609 |
{ |
| 610 |
static int tick_counter = 0; |
| 611 |
if (++tick_counter > 60) { |
| 612 |
tick_counter = 0; |
| 613 |
one_second(); |
| 614 |
} |
| 615 |
|
| 616 |
// Trigger 60Hz interrupt |
| 617 |
if (ROMVersion != ROM_VERSION_CLASSIC || HasMacStarted()) { |
| 618 |
SetInterruptFlag(INTFLAG_60HZ); |
| 619 |
TriggerInterrupt(); |
| 620 |
} |
| 621 |
} |
| 622 |
|
| 623 |
static int tick_func(void *arg) |
| 624 |
{ |
| 625 |
uint64 start = GetTicks_usec(); |
| 626 |
int64 ticks = 0; |
| 627 |
uint64 next = GetTicks_usec(); |
| 628 |
while (!tick_thread_cancel) { |
| 629 |
one_tick(); |
| 630 |
next += 16625; |
| 631 |
int64 delay = next - GetTicks_usec(); |
| 632 |
if (delay > 0) |
| 633 |
Delay_usec(delay); |
| 634 |
else if (delay < -16625) |
| 635 |
next = GetTicks_usec(); |
| 636 |
ticks++; |
| 637 |
} |
| 638 |
uint64 end = GetTicks_usec(); |
| 639 |
D(bug("%Ld ticks in %Ld usec = %f ticks/sec\n", ticks, end - start, ticks * 1000000.0 / (end - start))); |
| 640 |
return 0; |
| 641 |
} |
| 642 |
|
| 643 |
|
| 644 |
/* |
| 645 |
* Get the main window handle |
| 646 |
*/ |
| 647 |
|
| 648 |
#ifdef USE_SDL_VIDEO |
| 649 |
#include <SDL_syswm.h> |
| 650 |
HWND GetMainWindowHandle(void) |
| 651 |
{ |
| 652 |
SDL_SysWMinfo wmInfo; |
| 653 |
SDL_VERSION(&wmInfo.version); |
| 654 |
return SDL_GetWMInfo(&wmInfo) ? wmInfo.window : NULL; |
| 655 |
} |
| 656 |
#endif |
| 657 |
|
| 658 |
|
| 659 |
/* |
| 660 |
* Display alert |
| 661 |
*/ |
| 662 |
|
| 663 |
static void display_alert(int title_id, const char *text, int flags) |
| 664 |
{ |
| 665 |
HWND hMainWnd = GetMainWindowHandle(); |
| 666 |
MessageBox(hMainWnd, text, GetString(title_id), MB_OK | flags); |
| 667 |
} |
| 668 |
|
| 669 |
|
| 670 |
/* |
| 671 |
* Display error alert |
| 672 |
*/ |
| 673 |
|
| 674 |
void ErrorAlert(const char *text) |
| 675 |
{ |
| 676 |
if (PrefsFindBool("nogui")) |
| 677 |
return; |
| 678 |
|
| 679 |
VideoQuitFullScreen(); |
| 680 |
display_alert(STR_ERROR_ALERT_TITLE, text, MB_ICONSTOP); |
| 681 |
} |
| 682 |
|
| 683 |
|
| 684 |
/* |
| 685 |
* Display warning alert |
| 686 |
*/ |
| 687 |
|
| 688 |
void WarningAlert(const char *text) |
| 689 |
{ |
| 690 |
if (PrefsFindBool("nogui")) |
| 691 |
return; |
| 692 |
|
| 693 |
display_alert(STR_WARNING_ALERT_TITLE, text, MB_ICONINFORMATION); |
| 694 |
} |
| 695 |
|
| 696 |
|
| 697 |
/* |
| 698 |
* Display choice alert |
| 699 |
*/ |
| 700 |
|
| 701 |
bool ChoiceAlert(const char *text, const char *pos, const char *neg) |
| 702 |
{ |
| 703 |
printf(GetString(STR_SHELL_WARNING_PREFIX), text); |
| 704 |
return false; //!! |
| 705 |
} |
