generic/mainloop.cpp

   1 #include "mainloop.hpp"
   2 #include "avsnoop.hpp"
   3 #include "command.hpp"
   4 #include "controller.hpp"
   5 #include "framebuffer.hpp"
   6 #include "moviedata.hpp"
   7 #include <iomanip>
   8 #include "framerate.hpp"
   9 #include "memorywatch.hpp"
  10 #include "lua.hpp"
  11 #include "rrdata.hpp"
  12 #include "rom.hpp"
  13 #include "movie.hpp"
  14 #include "moviefile.hpp"
  15 #include "render.hpp"
  16 #include "window.hpp"
  17 #include "settings.hpp"
  18 #include "rom.hpp"
  19 #include "movie.hpp"
  20 #include <cassert>
  21 #include <sstream>
  22 #include "memorymanip.hpp"
  23 #include <iostream>
  24 #include <set>
  25 #include "lsnes.hpp"
  26 #include <sys/time.h>
  27 #include <snes/snes.hpp>
  28 #include <ui-libsnes/libsnes.hpp>
  29 #include "framerate.hpp"
  30
  31 #define SPECIAL_FRAME_START 0
  32 #define SPECIAL_FRAME_VIDEO 1
  33 #define SPECIAL_SAVEPOINT 2
  34 #define SPECIAL_NONE 3
  35
  36 #define RTC_SUBSECOND_INCREMENT_PAL 69242724928ULL
  37 #define RTC_SUBSECOND_INCREMENT_NTSC 57615439935ULL
  38 #define RTC_SUBSECOND_INCREMENT_NTSC_I 57615762380ULL
  39 #define RTC_SUBSECONDS_PER_SECOND 3462619485020ULL
  40
  41
  42 void update_movie_state();
  43
  44 namespace
  45 {
  46         enum advance_mode
  47         {
  48                 ADVANCE_QUIT,                   //Quit the emulator.
  49                 ADVANCE_AUTO,                   //Normal (possibly slowed down play).
  50                 ADVANCE_FRAME,                  //Frame advance.
  51                 ADVANCE_SUBFRAME,               //Subframe advance.
  52                 ADVANCE_SKIPLAG,                //Skip lag (oneshot, reverts to normal).
  53                 ADVANCE_SKIPLAG_PENDING,        //Activate skip lag mode at next frame.
  54                 ADVANCE_PAUSE,                  //Unconditional pause.
  55         };
  56
  57         //Memory watches.
  58         std::map<std::string, std::string> memory_watches;
  59         //Previous mouse mask.
  60         int prev_mouse_mask = 0;
  61         //Flags related to repeating advance.
  62         bool advanced_once;
  63         bool cancel_advance;
  64         //Emulator advance mode. Detemines pauses at start of frame / subframe, etc..
  65         enum advance_mode amode;
  66         //Mode and filename of pending load, one of LOAD_* constants.
  67         int loadmode;
  68         std::string pending_load;
  69         //Queued saves (all savestates).
  70         std::set<std::string> queued_saves;
  71         bool stepping_into_save;
  72         //Save jukebox.
  73         std::vector<std::string> save_jukebox;
  74         size_t save_jukebox_pointer;
  75         //Emulator status area.
  76         std::map<std::string, std::string>* status;
  77         //Pending reset cycles. -1 if no reset pending, otherwise, cycle count for reset.
  78         long pending_reset_cycles = -1;
  79         //Set by every video refresh.
  80         bool video_refresh_done;
  81         //Special subframe location. One of SPECIAL_* constants.
  82         int location_special;
  83         //Few settings.
  84         numeric_setting advance_timeout_first("advance-timeout", 0, 999999999, 500);
  85
  86
  87 }
  88
  89 class firmware_path_setting : public setting
  90 {
  91 public:
  92         firmware_path_setting() : setting("firmwarepath") { _firmwarepath = "."; default_firmware = true; }
  93         void blank() throw(std::bad_alloc, std::runtime_error)
  94         {
  95                 _firmwarepath = ".";
  96                 default_firmware = true;
  97         }
  98
  99         bool is_set() throw()
 100         {
 101                 return !default_firmware;
 102         }
 103
 104         void set(const std::string& value) throw(std::bad_alloc, std::runtime_error)
 105         {
 106                 _firmwarepath = value;
 107                 default_firmware = false;
 108         }
 109
 110         std::string get() throw(std::bad_alloc)
 111         {
 112                 return _firmwarepath;
 113         }
 114
 115         operator std::string() throw(std::bad_alloc)
 116         {
 117                 return _firmwarepath;
 118         }
 119 private:
 120         std::string _firmwarepath;
 121         bool default_firmware;
 122 } firmwarepath_setting;
 123
 124 controls_t movie_logic::update_controls(bool subframe) throw(std::bad_alloc, std::runtime_error)
 125 {
 126         if(lua_requests_subframe_paint)
 127                 redraw_framebuffer();
 128
 129         if(subframe) {
 130                 if(amode == ADVANCE_SUBFRAME) {
 131                         if(!cancel_advance && !advanced_once) {
 132                                 window::wait_usec(advance_timeout_first * 1000);
 133                                 advanced_once = true;
 134                         }
 135                         if(cancel_advance) {
 136                                 amode = ADVANCE_PAUSE;
 137                                 cancel_advance = false;
 138                         }
 139                         window::paused(amode == ADVANCE_PAUSE);
 140                 } else if(amode == ADVANCE_FRAME) {
 141                         ;
 142                 } else {
 143                         window::paused(amode == ADVANCE_SKIPLAG || amode == ADVANCE_PAUSE);
 144                         cancel_advance = false;
 145                 }
 146                 if(amode == ADVANCE_SKIPLAG)
 147                         amode = ADVANCE_AUTO;
 148                 location_special = SPECIAL_NONE;
 149                 update_movie_state();
 150         } else {
 151                 if(amode == ADVANCE_SKIPLAG_PENDING)
 152                         amode = ADVANCE_SKIPLAG;
 153                 if(amode == ADVANCE_FRAME || amode == ADVANCE_SUBFRAME) {
 154                         if(!cancel_advance) {
 155                                 window::wait_usec(advanced_once ? to_wait_frame(get_utime()) :
 156                                         (advance_timeout_first * 1000));
 157                                 advanced_once = true;
 158                         }
 159                         if(cancel_advance) {
 160                                 amode = ADVANCE_PAUSE;
 161                                 cancel_advance = false;
 162                         }
 163                         window::paused(amode == ADVANCE_PAUSE);
 164                 } else {
 165                         window::paused((amode == ADVANCE_PAUSE));
 166                         cancel_advance = false;
 167                 }
 168                 location_special = SPECIAL_FRAME_START;
 169                 update_movie_state();
 170
 171         }
 172         window::notify_screen_update();
 173         window::poll_inputs();
 174         if(!subframe && pending_reset_cycles >= 0)
 175                 set_curcontrols_reset(pending_reset_cycles);
 176         else if(!subframe)
 177                 set_curcontrols_reset(-1);
 178         controls_t tmp = get_current_controls(movb.get_movie().get_current_frame());
 179         lua_callback_do_input(tmp, subframe);
 180         return tmp;
 181 }
 182
 183 namespace
 184 {
 185
 186
 187         //Do pending load (automatically unpauses).
 188         void mark_pending_load(const std::string& filename, int lmode)
 189         {
 190                 loadmode = lmode;
 191                 pending_load = filename;
 192                 amode = ADVANCE_AUTO;
 193                 window::cancel_wait();
 194                 window::paused(false);
 195         }
 196
 197         void mark_pending_save(const std::string& filename, int smode)
 198         {
 199                 if(smode == SAVE_MOVIE) {
 200                         //Just do this immediately.
 201                         do_save_movie(filename);
 202                         return;
 203                 }
 204                 queued_saves.insert(filename);
 205                 window::message("Pending save on '" + filename + "'");
 206         }
 207
 208         class dump_watch : public av_snooper::dump_notification
 209         {
 210                 void dump_starting() throw()
 211                 {
 212                         update_movie_state();
 213                 }
 214                 void dump_ending() throw()
 215                 {
 216                         update_movie_state();
 217                 }
 218         } dumpwatch;
 219
 220         uint16_t lpalette[0x80000];
 221         void init_palette()
 222         {
 223                 static bool palette_init = false;
 224                 if(palette_init)
 225                         return;
 226                 palette_init = true;
 227                 for(unsigned i = 0; i < 0x80000; i++) {
 228                         unsigned l = (i >> 15) & 0xF;
 229                         unsigned b = (i >> 10) & 0x1F;
 230                         unsigned g = (i >> 5) & 0x1F;
 231                         unsigned r = (i >> 0) & 0x1F;
 232                         double _l = static_cast<double>(l) / 15;
 233                         r = (r * _l + 0.5);
 234                         g = (g * _l + 0.5);
 235                         b = (b * _l + 0.5);
 236                         lpalette[i] = (r << 10) | (g << 5) | b;
 237                 }
 238         }
 239 }
 240
 241 void update_movie_state()
 242 {
 243         auto& _status = window::get_emustatus();
 244         if(!system_corrupt) {
 245                 std::ostringstream x;
 246                 x << movb.get_movie().get_current_frame() << "(";
 247                 if(location_special == SPECIAL_FRAME_START)
 248                         x << "0";
 249                 else if(location_special == SPECIAL_SAVEPOINT)
 250                         x << "S";
 251                 else if(location_special == SPECIAL_FRAME_VIDEO)
 252                         x << "V";
 253                 else
 254                         x << movb.get_movie().next_poll_number();
 255                 x << ";" << movb.get_movie().get_lag_frames() << ")/" << movb.get_movie().get_frame_count();
 256                 _status["Frame"] = x.str();
 257         } else
 258                 _status["Frame"] = "N/A";
 259 #ifndef NO_TIME_INTERCEPT
 260         if(!system_corrupt) {
 261                 time_t timevalue = static_cast<time_t>(our_movie.rtc_second);
 262                 struct tm* time_decompose = gmtime(&timevalue);
 263                 char datebuffer[512];
 264                 char timebuffer[512];
 265                 strftime(datebuffer, 511, "%a %d %b %Y", time_decompose);
 266                 strftime(timebuffer, 511, "%H:%M:%S", time_decompose);
 267                 _status["RTCdate"] = datebuffer;
 268                 _status["RTCtime"] = timebuffer;
 269         } else {
 270                 _status["RTCdate"] = "N/A";
 271                 _status["RTCtime"] = "N/A";
 272         }
 273 #endif
 274         {
 275                 std::ostringstream x;
 276                 if(system_corrupt)
 277                         x << "CORRUPT ";
 278                 else if(movb.get_movie().readonly_mode())
 279                         x << "PLAY ";
 280                 else
 281                         x << "REC ";
 282                 if(av_snooper::dump_in_progress())
 283                         x << "CAP ";
 284                 _status["Flags"] = x.str();
 285         }
 286         if(save_jukebox.size() > 0)
 287                 _status["Saveslot"] = save_jukebox[save_jukebox_pointer];
 288         else
 289                 _status.erase("Saveslot");
 290         for(auto i = memory_watches.begin(); i != memory_watches.end(); i++) {
 291                 try {
 292                         _status["M[" + i->first + "]"] = evaluate_watch(i->second);
 293                 } catch(...) {
 294                 }
 295         }
 296
 297         controls_t c;
 298         if(movb.get_movie().readonly_mode())
 299                 c = movb.get_movie().get_controls();
 300         else
 301                 c = get_current_controls(movb.get_movie().get_current_frame());
 302         for(unsigned i = 0; i < 8; i++) {
 303                 unsigned pindex = controller_index_by_logical(i);
 304                 unsigned port = pindex >> 2;
 305                 unsigned dev = pindex & 3;
 306                 auto ctype = controller_type_by_logical(i);
 307                 std::ostringstream x;
 308                 switch(ctype) {
 309                 case DT_GAMEPAD:
 310                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_LEFT) ? "l" : " ");
 311                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_RIGHT) ? "r" : " ");
 312                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_UP) ? "u" : " ");
 313                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_DOWN) ? "d" : " ");
 314                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_A) ? "A" : " ");
 315                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_B) ? "B" : " ");
 316                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_X) ? "X" : " ");
 317                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_Y) ? "Y" : " ");
 318                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_L) ? "L" : " ");
 319                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_R) ? "R" : " ");
 320                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_START) ? "S" : " ");
 321                         x << (c(port, dev, SNES_DEVICE_ID_JOYPAD_SELECT) ? "s" : " ");
 322                         break;
 323                 case DT_MOUSE:
 324                         x << c(port, dev, SNES_DEVICE_ID_MOUSE_X) << " ";
 325                         x << c(port, dev, SNES_DEVICE_ID_MOUSE_Y) << " ";
 326                         x << (c(port, dev, SNES_DEVICE_ID_MOUSE_LEFT) ? "L" : " ");
 327                         x << (c(port, dev, SNES_DEVICE_ID_MOUSE_RIGHT) ? "R" : " ");
 328                         break;
 329                 case DT_SUPERSCOPE:
 330                         x << c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_X) << " ";
 331                         x << c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_Y) << " ";
 332                         x << (c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_TRIGGER) ? "T" : " ");
 333                         x << (c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_CURSOR) ? "C" : " ");
 334                         x << (c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_TURBO) ? "t" : " ");
 335                         x << (c(port, dev, SNES_DEVICE_ID_SUPER_SCOPE_PAUSE) ? "P" : " ");
 336                         break;
 337                 case DT_JUSTIFIER:
 338                         x << c(port, dev, SNES_DEVICE_ID_JUSTIFIER_X) << " ";
 339                         x << c(port, dev, SNES_DEVICE_ID_JUSTIFIER_Y) << " ";
 340                         x << (c(port, dev, SNES_DEVICE_ID_JUSTIFIER_START) ? "T" : " ");
 341                         x << (c(port, dev, SNES_DEVICE_ID_JUSTIFIER_TRIGGER) ? "S" : " ");
 342                         break;
 343                 case DT_NONE:
 344                         continue;
 345                 }
 346                 char y[3] = {'P', 0, 0};
 347                 y[1] = 49 + i;
 348                 _status[std::string(y)] = x.str();
 349         }
 350 }
 351
 352
 353 class my_interface : public SNES::Interface
 354 {
 355         string path(SNES::Cartridge::Slot slot, const string &hint)
 356         {
 357                 const char* _hint = hint;
 358                 std::string _hint2 = _hint;
 359                 std::string fwp = firmwarepath_setting;
 360                 std::string finalpath = fwp + "/" + _hint2;
 361                 return finalpath.c_str();
 362         }
 363
 364         void videoRefresh(const uint32_t* data, bool hires, bool interlace, bool overscan)
 365         {
 366                 init_palette();
 367                 static uint16_t _data[512 * 512];
 368                 if(stepping_into_save)
 369                         window::message("Got video refresh in runtosave, expect desyncs!");
 370                 video_refresh_done = true;
 371                 bool region = (SNES::system.region() == SNES::System::Region::PAL);
 372                 //std::cerr << "Frame: hires     flag is " << (hires ? "  " : "un") << "set." << std::endl;
 373                 //std::cerr << "Frame: interlace flag is " << (interlace ? "  " : "un") << "set." << std::endl;
 374                 //std::cerr << "Frame: overscan  flag is " << (overscan ? "  " : "un") << "set." << std::endl;
 375                 //std::cerr << "Frame: region    flag is " << (region ? "  " : "un") << "set." << std::endl;
 376                 for(size_t i = 0; i < 512 * 512; i++)
 377                         _data[i] = lpalette[data[i] & 0x7FFFF];
 378                 lcscreen ls(_data, hires, interlace, overscan, region);
 379                 framebuffer = ls;
 380                 location_special = SPECIAL_FRAME_VIDEO;
 381                 update_movie_state();
 382                 redraw_framebuffer();
 383                 uint32_t fps_n, fps_d;
 384                 if(region) {
 385                         fps_n = 322445;
 386                         fps_d = 6448;
 387                         our_movie.rtc_subsecond += RTC_SUBSECOND_INCREMENT_PAL;
 388                 } else if(!interlace) {
 389                         fps_n = 10738636;
 390                         fps_d = 178683;
 391                         our_movie.rtc_subsecond += RTC_SUBSECOND_INCREMENT_NTSC;
 392                 } else {
 393                         //Yes, interlace makes difference with NTSC but not on PAL.
 394                         fps_n = 2684659;
 395                         fps_d = 44671;
 396                         our_movie.rtc_subsecond += RTC_SUBSECOND_INCREMENT_NTSC_I;
 397                 }
 398                 if(our_movie.rtc_subsecond >= RTC_SUBSECONDS_PER_SECOND) {
 399                         our_movie.rtc_second++;
 400                         our_movie.rtc_subsecond -= RTC_SUBSECONDS_PER_SECOND;
 401                 }
 402                 av_snooper::frame(ls, fps_n, fps_d, true);
 403         }
 404
 405         void audioSample(int16_t l_sample, int16_t r_sample)
 406         {
 407                 uint16_t _l = l_sample;
 408                 uint16_t _r = r_sample;
 409                 window::play_audio_sample(_l + 32768, _r + 32768);
 410                 av_snooper::sample(_l, _r, true);
 411         }
 412
 413         int16_t inputPoll(bool port, SNES::Input::Device device, unsigned index, unsigned id)
 414         {
 415                 int16_t x;
 416                 x = movb.input_poll(port, index, id);
 417                 //if(id == SNES_DEVICE_ID_JOYPAD_START)
 418                 //      std::cerr << "bsnes polling for start on (" << port << "," << index << ")=" << x << std::endl;
 419                 lua_callback_snoop_input(port ? 1 : 0, index, id, x);
 420                 return x;
 421         }
 422 };
 423
 424 namespace
 425 {
 426         function_ptr_command<> count_rerecords("count-rerecords", "Count rerecords",
 427                 "Syntax: count-rerecords\nCounts rerecords.\n",
 428                 []() throw(std::bad_alloc, std::runtime_error) {
 429                         std::vector<char> tmp;
 430                         uint64_t x = rrdata::write(tmp);
 431                         messages << x << " rerecord(s)" << std::endl;
 432                 });
 433
 434         function_ptr_command<const std::string&> quit_emulator("quit-emulator", "Quit the emulator",
 435                 "Syntax: quit-emulator [/y]\nQuits emulator (/y => don't ask for confirmation).\n",
 436                 [](const std::string& args) throw(std::bad_alloc, std::runtime_error) {
 437                         if(args == "/y" || window::modal_message("Really quit?", true)) {
 438                                 amode = ADVANCE_QUIT;
 439                                 window::paused(false);
 440                                 window::cancel_wait();
 441                         }
 442                 });
 443
 444         function_ptr_command<> pause_emulator("pause-emulator", "(Un)pause the emulator",
 445                 "Syntax: pause-emulator\n(Un)pauses the emulator.\n",
 446                 []() throw(std::bad_alloc, std::runtime_error) {
 447                         if(amode != ADVANCE_AUTO) {
 448                                 amode = ADVANCE_AUTO;
 449                                 window::paused(false);
 450                                 window::cancel_wait();
 451                                 window::message("Unpaused");
 452                         } else {
 453                                 window::cancel_wait();
 454                                 cancel_advance = false;
 455                                 amode = ADVANCE_PAUSE;
 456                                 window::message("Paused");
 457                         }
 458                 });
 459
 460         function_ptr_command<> save_jukebox_prev("cycle-jukebox-backward", "Cycle save jukebox backwards",
 461                 "Syntax: cycle-jukebox-backwards\nCycle save jukebox backwards\n",
 462                 []() throw(std::bad_alloc, std::runtime_error) {
 463                         if(save_jukebox_pointer == 0)
 464                                 save_jukebox_pointer = save_jukebox.size() - 1;
 465                         else
 466                                 save_jukebox_pointer--;
 467                         if(save_jukebox_pointer >= save_jukebox.size())
 468                                 save_jukebox_pointer = 0;
 469                         update_movie_state();
 470                         window::notify_screen_update();
 471                 });
 472
 473         function_ptr_command<> save_jukebox_next("cycle-jukebox-forward", "Cycle save jukebox forwards",
 474                 "Syntax: cycle-jukebox-forwards\nCycle save jukebox forwards\n",
 475                 []() throw(std::bad_alloc, std::runtime_error) {
 476                         if(save_jukebox_pointer == save_jukebox.size() - 1)
 477                                 save_jukebox_pointer = 0;
 478                         else
 479                                 save_jukebox_pointer++;
 480                         if(save_jukebox_pointer >= save_jukebox.size())
 481                                 save_jukebox_pointer = 0;
 482                         update_movie_state();
 483                         window::notify_screen_update();
 484                 });
 485
 486         function_ptr_command<arg_filename> add_jukebox("add-jukebox-save", "Add save to jukebox",
 487                 "Syntax: add-jukebox-save\nAdd save to jukebox\n",
 488                 [](arg_filename filename) throw(std::bad_alloc, std::runtime_error) {
 489                         save_jukebox.push_back(filename);
 490                         update_movie_state();
 491                         window::notify_screen_update();
 492                 });
 493
 494         function_ptr_command<> load_jukebox("load-jukebox", "Load save from jukebox",
 495                 "Syntax: load-jukebox\nLoad save from jukebox\n",
 496                 []() throw(std::bad_alloc, std::runtime_error) {
 497                         if(!save_jukebox.size())
 498                                 throw std::runtime_error("No saves in jukebox");
 499                         mark_pending_load(save_jukebox[save_jukebox_pointer], LOAD_STATE_CURRENT);
 500                 });
 501
 502         function_ptr_command<> save_jukebox_c("save-jukebox", "Save save to jukebox",
 503                 "Syntax: save-jukebox\nSave save to jukebox\n",
 504                 []() throw(std::bad_alloc, std::runtime_error) {
 505                         if(!save_jukebox.size())
 506                                 throw std::runtime_error("No saves in jukebox");
 507                         mark_pending_save(save_jukebox[save_jukebox_pointer], SAVE_STATE);
 508                 });
 509
 510         function_ptr_command<> padvance_frame("+advance-frame", "Advance one frame",
 511                 "Syntax: +advance-frame\nAdvances the emulation by one frame.\n",
 512                 []() throw(std::bad_alloc, std::runtime_error) {
 513                         amode = ADVANCE_FRAME;
 514                         cancel_advance = false;
 515                         advanced_once = false;
 516                         window::cancel_wait();
 517                         window::paused(false);
 518                 });
 519
 520         function_ptr_command<> nadvance_frame("-advance-frame", "Advance one frame",
 521                 "No help available\n",
 522                 []() throw(std::bad_alloc, std::runtime_error) {
 523                         cancel_advance = true;
 524                         window::cancel_wait();
 525                         window::paused(false);
 526                 });
 527
 528         function_ptr_command<> padvance_poll("+advance-poll", "Advance one subframe",
 529                 "Syntax: +advance-poll\nAdvances the emulation by one subframe.\n",
 530                 []() throw(std::bad_alloc, std::runtime_error) {
 531                         amode = ADVANCE_SUBFRAME;
 532                         cancel_advance = false;
 533                         advanced_once = false;
 534                         window::cancel_wait();
 535                         window::paused(false);
 536                 });
 537
 538         function_ptr_command<> nadvance_poll("-advance-poll", "Advance one subframe",
 539                 "No help available\n",
 540                 []() throw(std::bad_alloc, std::runtime_error) {
 541                         cancel_advance = true;
 542                         window::cancel_wait();
 543                         window::paused(false);
 544                 });
 545
 546         function_ptr_command<> advance_skiplag("advance-skiplag", "Skip to next poll",
 547                 "Syntax: advance-skiplag\nAdvances the emulation to the next poll.\n",
 548                 []() throw(std::bad_alloc, std::runtime_error) {
 549                         amode = ADVANCE_SKIPLAG;
 550                         window::cancel_wait();
 551                         window::paused(false);
 552                 });
 553
 554         function_ptr_command<> reset_c("reset", "Reset the SNES",
 555                 "Syntax: reset\nResets the SNES in beginning of the next frame.\n",
 556                 []() throw(std::bad_alloc, std::runtime_error) {
 557                         pending_reset_cycles = 0;
 558                 });
 559
 560         function_ptr_command<arg_filename> load_c("load", "Load savestate (current mode)",
 561                 "Syntax: load <file>\nLoads SNES state from <file> in current mode\n",
 562                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 563                         mark_pending_load(args, LOAD_STATE_CURRENT);
 564                 });
 565
 566         function_ptr_command<arg_filename> load_state_c("load-state", "Load savestate (R/W)",
 567                 "Syntax: load-state <file>\nLoads SNES state from <file> in Read/Write mode\n",
 568                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 569                         mark_pending_load(args, LOAD_STATE_RW);
 570                 });
 571
 572         function_ptr_command<arg_filename> load_readonly("load-readonly", "Load savestate (RO)",
 573                 "Syntax: load-readonly <file>\nLoads SNES state from <file> in read-only mode\n",
 574                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 575                         mark_pending_load(args, LOAD_STATE_RO);
 576                 });
 577
 578         function_ptr_command<arg_filename> load_preserve("load-preserve", "Load savestate (preserve input)",
 579                 "Syntax: load-preserve <file>\nLoads SNES state from <file> preserving input\n",
 580                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 581                         mark_pending_load(args, LOAD_STATE_PRESERVE);
 582                 });
 583
 584         function_ptr_command<arg_filename> load_movie_c("load-movie", "Load movie",
 585                 "Syntax: load-movie <file>\nLoads SNES movie from <file>\n",
 586                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 587                         mark_pending_load(args, LOAD_STATE_MOVIE);
 588                 });
 589
 590
 591         function_ptr_command<arg_filename> save_state("save-state", "Save state",
 592                 "Syntax: save-state <file>\nSaves SNES state to <file>\n",
 593                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 594                         mark_pending_save(args, SAVE_STATE);
 595                 });
 596
 597         function_ptr_command<arg_filename> save_movie("save-movie", "Save movie",
 598                 "Syntax: save-movie <file>\nSaves SNES movie to <file>\n",
 599                 [](arg_filename args) throw(std::bad_alloc, std::runtime_error) {
 600                         mark_pending_save(args, SAVE_MOVIE);
 601                 });
 602
 603         function_ptr_command<> set_rwmode("set-rwmode", "Switch to read/write mode",
 604                 "Syntax: set-rwmode\nSwitches to read/write mode\n",
 605                 []() throw(std::bad_alloc, std::runtime_error) {
 606                         movb.get_movie().readonly_mode(false);
 607                         lua_callback_do_readwrite();
 608                         update_movie_state();
 609                         window::notify_screen_update();
 610                 });
 611
 612         function_ptr_command<> set_romode("set-romode", "Switch to read-only mode",
 613                 "Syntax: set-romode\nSwitches to read-only mode\n",
 614                 []() throw(std::bad_alloc, std::runtime_error) {
 615                         movb.get_movie().readonly_mode(true);
 616                         update_movie_state();
 617                         window::notify_screen_update();
 618                 });
 619
 620         function_ptr_command<> toggle_rwmode("toggle-rwmode", "Toggle read/write mode",
 621                 "Syntax: toggle-rwmode\nToggles read/write mode\n",
 622                 []() throw(std::bad_alloc, std::runtime_error) {
 623                         bool c = movb.get_movie().readonly_mode();
 624                         movb.get_movie().readonly_mode(!c);
 625                         if(c)
 626                                 lua_callback_do_readwrite();
 627                         update_movie_state();
 628                         window::notify_screen_update();
 629                 });
 630
 631         function_ptr_command<> repaint("repaint", "Redraw the screen",
 632                 "Syntax: repaint\nRedraws the screen\n",
 633                 []() throw(std::bad_alloc, std::runtime_error) {
 634                         redraw_framebuffer();
 635                 });
 636
 637         function_ptr_command<tokensplitter&> add_watch("add-watch", "Add a memory watch",
 638                 "Syntax: add-watch <name> <expression>\nAdds a new memory watch\n",
 639                 [](tokensplitter& t) throw(std::bad_alloc, std::runtime_error) {
 640                         std::string name = t;
 641                         if(name == "" || t.tail() == "")
 642                                 throw std::runtime_error("syntax: add-watch <name> <expr>");
 643                         std::cerr << "Add watch: '" << name << "'" << std::endl;
 644                         memory_watches[name] = t.tail();
 645                         update_movie_state();
 646                 });
 647
 648         function_ptr_command<tokensplitter&> remove_watch("remove-watch", "Remove a memory watch",
 649                 "Syntax: remove-watch <name>\nRemoves a memory watch\n",
 650                 [](tokensplitter& t) throw(std::bad_alloc, std::runtime_error) {
 651                         std::string name = t;
 652                         if(name == "" || t.tail() != "") {
 653                                 messages << "syntax: remove-watch <name>" << std::endl;
 654                                 return;
 655                         }
 656                         std::cerr << "Erase watch: '" << name << "'" << std::endl;
 657                         memory_watches.erase(name);
 658                         auto& _status = window::get_emustatus();
 659                         _status.erase("M[" + name + "]");
 660                         update_movie_state();
 661                 });
 662
 663
 664         function_ptr_command<> test1("test-1", "no description available", "No help available\n",
 665                 []() throw(std::bad_alloc, std::runtime_error) {
 666                         framebuffer = screen_nosignal;
 667                         redraw_framebuffer();
 668                 });
 669
 670         function_ptr_command<> test2("test-2", "no description available", "No help available\n",
 671                 []() throw(std::bad_alloc, std::runtime_error) {
 672                         framebuffer = screen_corrupt;
 673                         redraw_framebuffer();
 674                 });
 675
 676         function_ptr_command<> test3("test-3", "no description available", "No help available\n",
 677                 []() throw(std::bad_alloc, std::runtime_error) {
 678                         while(1);
 679                 });
 680
 681
 682         bool on_quit_prompt = false;
 683         class mywindowcallbacks : public window_callback
 684         {
 685         public:
 686                 void on_close() throw()
 687                 {
 688                         if(on_quit_prompt) {
 689                                 amode = ADVANCE_QUIT;
 690                                 window::paused(false);
 691                                 window::cancel_wait();
 692                                 return;
 693                         }
 694                         on_quit_prompt = true;
 695                         try {
 696                                 if(window::modal_message("Really quit?", true)) {
 697                                         amode = ADVANCE_QUIT;
 698                                         window::paused(false);
 699                                         window::cancel_wait();
 700                                 }
 701                         } catch(...) {
 702                         }
 703                         on_quit_prompt = false;
 704                 }
 705
 706                 void on_click(int32_t x, int32_t y, uint32_t buttonmask) throw()
 707                 {
 708                         if(buttonmask & ~prev_mouse_mask & 1)
 709                                 send_analog_input(x, y, 0);
 710                         if(buttonmask & ~prev_mouse_mask & 2)
 711                                 send_analog_input(x, y, 1);
 712                         if(buttonmask & ~prev_mouse_mask & 4)
 713                                 send_analog_input(x, y, 2);
 714                         prev_mouse_mask = buttonmask;
 715                 }
 716         } mywcb;
 717
 718         //If there is a pending load, perform it. Return 1 on successful load, 0 if nothing to load, -1 on load
 719         //failing.
 720         int handle_load()
 721         {
 722                 if(pending_load != "") {
 723                         system_corrupt = false;
 724                         if(!do_load_state(pending_load, loadmode)) {
 725                                 pending_load = "";
 726                                 return -1;
 727                         }
 728                         redraw_framebuffer();
 729                         pending_load = "";
 730                         pending_reset_cycles = -1;
 731                         amode = ADVANCE_AUTO;
 732                         window::cancel_wait();
 733                         window::paused(false);
 734                         if(!system_corrupt) {
 735                                 location_special = SPECIAL_SAVEPOINT;
 736                                 update_movie_state();
 737                                 window::notify_screen_update();
 738                                 window::poll_inputs();
 739                         }
 740                         return 1;
 741                 }
 742                 return 0;
 743         }
 744
 745         //If there are pending saves, perform them.
 746         void handle_saves()
 747         {
 748                 if(!queued_saves.empty()) {
 749                         stepping_into_save = true;
 750                         SNES::system.runtosave();
 751                         stepping_into_save = false;
 752                         for(auto i = queued_saves.begin(); i != queued_saves.end(); i++)
 753                                 do_save_state(*i);
 754                 }
 755                 queued_saves.clear();
 756         }
 757
 758         //Do (delayed) reset. Return true if proper, false if forced at frame boundary.
 759         bool handle_reset(long cycles)
 760         {
 761                 if(cycles < 0)
 762                         return true;
 763                 video_refresh_done = false;
 764                 if(cycles == 0)
 765                         window::message("SNES reset");
 766                 else if(cycles > 0) {
 767                         window::message("SNES delayed reset not implemented (doing immediate reset)");
 768                         /* ... This code is just too buggy.
 769                         long cycles_executed = 0;
 770                         messages << "Executing delayed reset... This can take some time!" << std::endl;
 771                         while(cycles_executed < cycles && !video_refresh_done) {
 772                                 //Poll inputs once in a while to prevent activating watchdog.
 773                                 if(cycles_executed % 100 == 0)
 774                                         window::poll_inputs();
 775                                 SNES::cpu.op_step();
 776                                 cycles_executed++;
 777                         }
 778                         if(!video_refresh_done)
 779                                 messages << "SNES reset (delayed " << cycles_executed << ")" << std::endl;
 780                         else
 781                                 messages << "SNES reset (forced at " << cycles_executed << ")" << std::endl;
 782                         */
 783                 }
 784                 SNES::system.reset();
 785                 framebuffer = screen_nosignal;
 786                 lua_callback_do_reset();
 787                 redraw_framebuffer();
 788                 if(video_refresh_done) {
 789                         to_wait_frame(get_utime());
 790                         return false;
 791                 }
 792                 return true;
 793         }
 794
 795         bool handle_corrupt()
 796         {
 797                 if(!system_corrupt)
 798                         return false;
 799                 while(system_corrupt) {
 800                         redraw_framebuffer();
 801                         window::cancel_wait();
 802                         window::paused(true);
 803                         window::poll_inputs();
 804                         handle_load();
 805                         if(amode == ADVANCE_QUIT)
 806                                 return true;
 807                 }
 808                 return true;
 809         }
 810
 811         void print_controller_mappings()
 812         {
 813                 for(unsigned i = 0; i < 8; i++) {
 814                         std::string type = "unknown";
 815                         if(controller_type_by_logical(i) == DT_NONE)
 816                                 type = "disconnected";
 817                         if(controller_type_by_logical(i) == DT_GAMEPAD)
 818                                 type = "gamepad";
 819                         if(controller_type_by_logical(i) == DT_MOUSE)
 820                                 type = "mouse";
 821                         if(controller_type_by_logical(i) == DT_SUPERSCOPE)
 822                                 type = "superscope";
 823                         if(controller_type_by_logical(i) == DT_JUSTIFIER)
 824                                 type = "justifier";
 825                         messages << "Physical controller mapping: Logical " << (i + 1) << " is physical " <<
 826                                 controller_index_by_logical(i) << " (" << type << ")" << std::endl;
 827                 }
 828         }
 829 }
 830
 831 void main_loop(struct loaded_rom& rom, struct moviefile& initial, bool load_has_to_succeed) throw(std::bad_alloc,
 832         std::runtime_error)
 833 {
 834         //Basic initialization.
 835         init_special_screens();
 836         our_rom = &rom;
 837         my_interface intrf;
 838         auto old_inteface = SNES::interface;
 839         SNES::interface = &intrf;
 840         intrf.initialize(&intrf);
 841         status = &window::get_emustatus();
 842         window_callback::set_callback_handler(mywcb);
 843
 844         //Load our given movie.
 845         bool first_round = false;
 846         bool just_did_loadstate = false;
 847         try {
 848                 do_load_state(initial, LOAD_STATE_DEFAULT);
 849                 location_special = SPECIAL_SAVEPOINT;
 850                 update_movie_state();
 851                 first_round = our_movie.is_savestate;
 852                 just_did_loadstate = first_round;
 853         } catch(std::bad_alloc& e) {
 854                 OOM_panic();
 855         } catch(std::exception& e) {
 856                 messages << "ERROR: Can't load initial state: " << e.what() << std::endl;
 857                 if(load_has_to_succeed) {
 858                         messages << "FATAL: Can't load movie" << std::endl;
 859                         window::fatal_error();
 860                 }
 861                 system_corrupt = true;
 862                 update_movie_state();
 863                 framebuffer = screen_corrupt;
 864                 redraw_framebuffer();
 865         }
 866
 867         lua_callback_startup();
 868
 869         //print_controller_mappings();
 870         av_snooper::add_dump_notifier(dumpwatch);
 871         window::set_main_surface(main_screen);
 872         redraw_framebuffer();
 873         window::paused(false);
 874         amode = ADVANCE_PAUSE;
 875         while(amode != ADVANCE_QUIT) {
 876                 if(handle_corrupt()) {
 877                         first_round = our_movie.is_savestate;
 878                         just_did_loadstate = first_round;
 879                         continue;
 880                 }
 881                 long resetcycles = -1;
 882                 ack_frame_tick(get_utime());
 883                 if(amode == ADVANCE_SKIPLAG_PENDING)
 884                         amode = ADVANCE_SKIPLAG;
 885
 886                 if(!first_round) {
 887                         resetcycles = movb.new_frame_starting(amode == ADVANCE_SKIPLAG);
 888                         if(amode == ADVANCE_QUIT)
 889                                 break;
 890                         bool delayed_reset = (resetcycles > 0);
 891                         pending_reset_cycles = -1;
 892                         if(!handle_reset(resetcycles)) {
 893                                 continue;
 894                         }
 895                         if(!delayed_reset) {
 896                                 handle_saves();
 897                         }
 898                         int r = handle_load();
 899                         if(r > 0 || system_corrupt) {
 900                                 first_round = our_movie.is_savestate;
 901                                 amode = ADVANCE_PAUSE;
 902                                 just_did_loadstate = first_round;
 903                                 continue;
 904                         } else if(r < 0) {
 905                                 //Not exactly desriable, but this at least won't desync.
 906                                 amode = ADVANCE_PAUSE;
 907                         }
 908                 }
 909                 if(just_did_loadstate) {
 910                         if(amode == ADVANCE_QUIT)
 911                                 break;
 912                         amode = ADVANCE_PAUSE;
 913                         redraw_framebuffer();
 914                         window::cancel_wait();
 915                         window::paused(true);
 916                         window::poll_inputs();
 917                         //We already have done the reset this frame if we are going to do one at all.
 918                         movb.get_movie().set_controls(get_current_controls(movb.get_movie().get_current_frame()));
 919                         just_did_loadstate = false;
 920                 }
 921                 SNES::system.run();
 922                 if(amode == ADVANCE_AUTO)
 923                         window::wait_usec(to_wait_frame(get_utime()));
 924                 first_round = false;
 925         }
 926         av_snooper::end(true);
 927         SNES::interface = old_inteface;
 928 }