Shamusworld >> Repos - virtualjaguar/blob - src/vj.cpp

   1 //
   2 // Virtual Jaguar Emulator
   3 //
   4 // Original codebase by David Raingeard (Cal2)
   5 // GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
   6 // Cleanups/fixes/enhancements by James L. Hammons and Adam Green
   7 //
   8
   9 #ifdef __GCCUNIX__
  10 #include <unistd.h>                                                                     // Is this necessary anymore?
  11 #endif
  12
  13 #include <time.h>
  14 #include <SDL.h>
  15 #include "jaguar.h"
  16 #include "video.h"
  17 #include "gui.h"
  18 #include "sdlemu_opengl.h"
  19 #include "settings.h"                                                           // Pull in "vjs" struct
  20
  21 // Uncomment this to use built-in BIOS/CD-ROM BIOS
  22 // You'll need a copy of jagboot.h & jagcd.h for this to work...!
  23 //#define USE_BUILT_IN_BIOS
  24
  25 #ifdef USE_BUILT_IN_BIOS
  26 #include "jagboot.h"
  27 #include "jagcd.h"
  28 #endif
  29
  30 // Private function prototypes
  31
  32 // External variables
  33
  34 extern uint8 * jaguar_mainRam;
  35 extern uint8 * jaguar_mainRom;
  36 extern uint8 * jaguar_bootRom;
  37 extern uint8 * jaguar_CDBootROM;
  38
  39 // Global variables (export capable)
  40 //should these even be here anymore?
  41
  42 bool finished = false;
  43 bool showGUI = false;
  44 bool showMessage = false;
  45 uint32 showMessageTimeout;
  46 char messageBuffer[200];
  47 bool BIOSLoaded = false;
  48 bool CDBIOSLoaded = false;
  49
  50 //
  51 // The main emulator loop (what else?)
  52 //
  53 //Maybe we should move the video stuff to TOM? Makes more sense to put it there...
  54 //Actually, it would probably be better served in VIDEO.CPP... !!! FIX !!! [DONE]
  55 uint32 totalFrames;//temp, so we can grab this from elsewhere...
  56 int main(int argc, char * argv[])
  57 {
  58 //NOTE: This isn't actually used anywhere... !!! FIX !!!
  59         int32 nFrameskip = 0;                                                   // Default: Show every frame
  60
  61         printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator v1.1.0\n");
  62         printf("Based upon Virtual Jaguar core v1.0.0 by David Raingeard.\n");
  63         printf("Written by Niels Wagenaar (Linux/WIN32), Carwin Jones (BeOS),\n");
  64         printf("James L. Hammons (WIN32) and Adam Green (MacOS)\n");
  65         printf("Contact: http://sdlemu.ngemu.com/ | sdlemu@ngemu.com\n");
  66
  67         bool haveCart = false;                                                  // Assume there is no cartridge...!
  68
  69         log_init("vj.log");
  70         LoadVJSettings();                                                               // Get config file settings...
  71
  72         // Check the switches... ;-)
  73         // NOTE: Command line switches can override any config file settings, thus the
  74         //       proliferation of the noXXX switches. ;-)
  75
  76         for(int i=1; i<argc || argv[i]!=NULL; i++)
  77         {
  78                 // This would be the most likely place to do the cart loading...
  79                 if (argv[i][0] != '-')
  80                         haveCart = true;                                                // It looks like we have a cartridge!
  81
  82                 if (!strcmp(argv[i], "-joystick"))
  83                         vjs.useJoystick = true;
  84
  85                 if (!strcmp(argv[i], "-joyport"))
  86                 {
  87                         vjs.joyport = atoi(argv[++i]) + 1;
  88                         if (vjs.joyport > 3)
  89                                 vjs.joyport = 3;
  90                 }
  91
  92                 if (!strcmp(argv[i], "-frameskip"))
  93                 {
  94                         nFrameskip = atoi(argv[++i]) + 1;
  95                         if (nFrameskip > 10)
  96                                 nFrameskip = 10;
  97                 }
  98
  99                 if (!strcmp(argv[i], "-bios"))
 100                         vjs.useJaguarBIOS = true;
 101
 102                 if (!strcmp(argv[i], "-nobios"))
 103                         vjs.useJaguarBIOS = false;
 104
 105                 if (!strcmp(argv[i], "-dsp"))
 106                         vjs.DSPEnabled = true;
 107
 108                 if (!strcmp(argv[i], "-nodsp"))
 109                         vjs.DSPEnabled = false;
 110
 111                 if (!strcmp(argv[i], "-pipeline"))
 112                         vjs.usePipelinedDSP = true;
 113
 114                 if (!strcmp(argv[i], "-nopipeline"))
 115                         vjs.usePipelinedDSP = false;
 116
 117                 if (!strcmp(argv[i], "-gl"))
 118                         vjs.useOpenGL = true;
 119
 120                 if (!strcmp(argv[i], "-nogl"))
 121                         vjs.useOpenGL = false;
 122
 123                 if (!strcmp(argv[i], "-fullscreen"))
 124                         vjs.fullscreen = true;
 125
 126                 if (!strcmp(argv[i], "-window"))
 127                         vjs.fullscreen = false;
 128
 129                 if (!strcmp(argv[i], "-pal"))
 130                         vjs.hardwareTypeNTSC = false;
 131
 132                 if (!strcmp(argv[i], "-ntsc"))
 133                         vjs.hardwareTypeNTSC = true;
 134
 135                 if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-?"))
 136                 {
 137                     printf("Usage: \n\n");
 138                         printf("vj [romfile] [switches]\n");
 139                         printf("  -? or -help     : Display usage and switches                \n");
 140                         printf("  -frameskip 1-10 : Enable frameskip 1 - 10 (default: none)   \n");
 141                         printf("  -joystick       : Enable joystick/gamepad                   \n");
 142                         printf("  -joyport 0-3    : Select desired joystick port              \n");
 143                         printf("  -bios           : Boot cart using Jaguar BIOS ROM           \n");
 144                         printf("  -nobios         : Boot cart without using Jaguar BIOS ROM   \n");
 145                         printf("  -dsp            : Force VJ to use the DSP                   \n");
 146                         printf("  -nodsp          : Force VJ to run without the DSP           \n");
 147                         printf("  -pipeline       : Use the DSP pipelined core                \n");
 148                         printf("  -nopipeline     : Use the DSP non-pipelined core            \n");
 149                         printf("  -gl             : Use OpenGL rendering                      \n");
 150                         printf("  -nogl           : Use old non-OpenGL rendering              \n");
 151                         printf("  -fullscreen     : Enable fullscreen mode (default: windowed)\n");
 152                         printf("  -window         : Enable windowed mode                      \n");
 153                         printf("  -pal            : Force VJ to PAL mode (default: NTSC)      \n");
 154                         printf("  -ntsc           : Force VJ to NTSC mode                     \n");
 155                         printf("\nInvoking Virtual Jagaur with no ROM file will cause it to boot up\n");
 156                         printf("with the VJ GUI.\n");
 157                         return 1;
 158                 }
 159     }
 160
 161         // Set up SDL library
 162         if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0)
 163 //              | SDL_INIT_CDROM) < 0)
 164 //              | SDL_INIT_CDROM | SDL_INIT_NOPARACHUTE) < 0)
 165         {
 166                 WriteLog("VJ: Could not initialize the SDL library: %s\n", SDL_GetError());
 167                 return -1;
 168         }
 169
 170         WriteLog("VJ: SDL successfully initialized.\n");
 171
 172 WriteLog("Initializing memory subsystem...\n");
 173         InitMemory();
 174 WriteLog("Initializing version...\n");
 175         InitVersion();
 176         version_display(log_get());
 177 WriteLog("Initializing jaguar subsystem...\n");
 178         jaguar_init();
 179
 180         // Get the BIOS ROM
 181 #ifdef USE_BUILT_IN_BIOS
 182         WriteLog("VJ: Using built in BIOS/CD BIOS...\n");
 183         memcpy(jaguar_bootRom, jagBootROM, 0x20000);
 184         memcpy(jaguar_CDBootROM, jagCDROM, 0x40000);
 185         BIOSLoaded = CDBIOSLoaded = true;
 186 #else
 187 //      if (vjs.useJaguarBIOS)
 188 // What would be nice here would be a way to check if the BIOS was loaded so that we
 189 // could disable the pushbutton on the Misc Options menu... !!! FIX !!! [DONE here, but needs to be fixed in GUI as well!]
 190 WriteLog("About to attempt to load BIOSes...\n");
 191         BIOSLoaded = (JaguarLoadROM(jaguar_bootRom, vjs.jagBootPath) == 0x20000 ? true : false);
 192         WriteLog("VJ: BIOS is %savailable...\n", (BIOSLoaded ? "" : "not "));
 193         CDBIOSLoaded = (JaguarLoadROM(jaguar_CDBootROM, vjs.CDBootPath) == 0x40000 ? true : false);
 194         WriteLog("VJ: CD BIOS is %savailable...\n", (CDBIOSLoaded ? "" : "not "));
 195 #endif
 196
 197         SET32(jaguar_mainRam, 0, 0x00200000);                   // Set top of stack...
 198
 199 WriteLog("Initializing video subsystem...\n");
 200         InitVideo();
 201 WriteLog("Initializing GUI subsystem...\n");
 202         InitGUI();
 203
 204         // Now with crunchy GUI goodness!
 205 WriteLog("About to start GUI...\n");
 206         GUIMain(haveCart ? argv[1] : NULL);
 207
 208 //This is no longer accurate...!
 209 //      int elapsedTime = clock() - startTime;
 210 //      int fps = (1000 * totalFrames) / elapsedTime;
 211 //      WriteLog("VJ: Ran at an average of %i FPS.\n", fps);
 212
 213         jaguar_done();
 214         VersionDone();
 215         MemoryDone();
 216         VideoDone();
 217         log_done();
 218
 219         // Free SDL components last...!
 220 //      SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER | SDL_INIT_CDROM);
 221         SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER);
 222         SDL_Quit();
 223
 224     return 0;
 225 }