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 //Looks like the answer is no...
  12 #endif
  13
  14 #include <time.h>
  15 #include <SDL.h>
  16 #include "jaguar.h"
  17 #include "video.h"
  18 #include "gui.h"
  19 #include "sdlemu_opengl.h"
  20 #include "settings.h"                                                           // Pull in "vjs" struct
  21 #include "log.h"
  22 #include "version.h"
  23 #include "memory.h"
  24
  25 // Uncomment this to use built-in BIOS/CD-ROM BIOS
  26 // You'll need a copy of jagboot.h & jagcd.h for this to work...!
  27 //#define USE_BUILT_IN_BIOS
  28
  29 #ifdef USE_BUILT_IN_BIOS
  30 #include "jagboot.h"
  31 #include "jagcd.h"
  32 #endif
  33
  34 // Private function prototypes
  35
  36 // External variables
  37
  38 extern uint8 * jaguar_mainRam;
  39 extern uint8 * jaguar_mainRom;
  40 extern uint8 * jaguar_bootRom;
  41 extern uint8 * jaguar_CDBootROM;
  42
  43 // Global variables (export capable)
  44 //should these even be here anymore? prolly not...
  45
  46 bool finished = false;
  47 bool showGUI = false;
  48 bool showMessage = false;
  49 uint32 showMessageTimeout;
  50 char messageBuffer[200];
  51 bool BIOSLoaded = false;
  52 bool CDBIOSLoaded = false;
  53
  54 //
  55 // The main emulator loop (what else?)
  56 //
  57 //Maybe we should move the video stuff to TOM? Makes more sense to put it there...
  58 //Actually, it would probably be better served in VIDEO.CPP... !!! FIX !!! [DONE]
  59 uint32 totalFrames;//temp, so we can grab this from elsewhere...
  60 int main(int argc, char * argv[])
  61 {
  62 //NOTE: This isn't actually used anywhere... !!! FIX !!!
  63         int32 nFrameskip = 0;                                                   // Default: Show every frame
  64
  65         printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator v1.1.0\n");
  66         printf("Based upon Virtual Jaguar core v1.0.0 by David Raingeard.\n");
  67         printf("Written by Niels Wagenaar (Linux/WIN32), Carwin Jones (BeOS),\n");
  68         printf("James L. Hammons (WIN32) and Adam Green (MacOS)\n");
  69         printf("Contact: http://sdlemu.ngemu.com/ | sdlemu@ngemu.com\n");
  70
  71         bool haveCart = false;                                                  // Assume there is no cartridge...!
  72
  73         log_init("vj.log");
  74         LoadVJSettings();                                                               // Get config file settings...
  75
  76         // Check the switches... ;-)
  77         // NOTE: Command line switches can override any config file settings, thus the
  78         //       proliferation of the noXXX switches. ;-)
  79
  80         for(int i=1; i<argc || argv[i]!=NULL; i++)
  81         {
  82                 // This would be the most likely place to do the cart loading...
  83                 if (argv[i][0] != '-')
  84                         haveCart = true;                                                // It looks like we have a cartridge!
  85
  86                 if (!strcmp(argv[i], "-joystick"))
  87                         vjs.useJoystick = true;
  88
  89                 if (!strcmp(argv[i], "-joyport"))
  90                 {
  91                         vjs.joyport = atoi(argv[++i]) + 1;
  92                         if (vjs.joyport > 3)
  93                                 vjs.joyport = 3;
  94                 }
  95
  96                 if (!strcmp(argv[i], "-frameskip"))
  97                 {
  98                         nFrameskip = atoi(argv[++i]) + 1;
  99                         if (nFrameskip > 10)
 100                                 nFrameskip = 10;
 101                 }
 102
 103                 if (!strcmp(argv[i], "-bios"))
 104                         vjs.useJaguarBIOS = true;
 105
 106                 if (!strcmp(argv[i], "-nobios"))
 107                         vjs.useJaguarBIOS = false;
 108
 109                 if (!strcmp(argv[i], "-dsp"))
 110                         vjs.DSPEnabled = true;
 111
 112                 if (!strcmp(argv[i], "-nodsp"))
 113                         vjs.DSPEnabled = false;
 114
 115                 if (!strcmp(argv[i], "-pipeline"))
 116                         vjs.usePipelinedDSP = true;
 117
 118                 if (!strcmp(argv[i], "-nopipeline"))
 119                         vjs.usePipelinedDSP = false;
 120
 121                 if (!strcmp(argv[i], "-gl"))
 122                         vjs.useOpenGL = true;
 123
 124                 if (!strcmp(argv[i], "-nogl"))
 125                         vjs.useOpenGL = false;
 126
 127                 if (!strcmp(argv[i], "-fullscreen"))
 128                         vjs.fullscreen = true;
 129
 130                 if (!strcmp(argv[i], "-window"))
 131                         vjs.fullscreen = false;
 132
 133                 if (!strcmp(argv[i], "-pal"))
 134                         vjs.hardwareTypeNTSC = false;
 135
 136                 if (!strcmp(argv[i], "-ntsc"))
 137                         vjs.hardwareTypeNTSC = true;
 138
 139                 if (!strcmp(argv[i], "--help") || !strcmp(argv[i], "-?"))
 140                 {
 141                     printf("Usage: \n\n");
 142                         printf("vj [romfile] [switches]\n");
 143                         printf("  -? or --help    : Display usage and switches                \n");
 144                         printf("  -frameskip 1-10 : Enable frameskip 1 - 10 (default: none)   \n");
 145                         printf("  -joystick       : Enable joystick/gamepad                   \n");
 146                         printf("  -joyport 0-3    : Select desired joystick port              \n");
 147                         printf("  -bios           : Boot cart using Jaguar BIOS ROM           \n");
 148                         printf("  -nobios         : Boot cart without using Jaguar BIOS ROM   \n");
 149                         printf("  -dsp            : Force VJ to use the DSP                   \n");
 150                         printf("  -nodsp          : Force VJ to run without the DSP           \n");
 151                         printf("  -pipeline       : Use the DSP pipelined core                \n");
 152                         printf("  -nopipeline     : Use the DSP non-pipelined core            \n");
 153                         printf("  -gl             : Use OpenGL rendering                      \n");
 154                         printf("  -nogl           : Use old non-OpenGL rendering              \n");
 155                         printf("  -fullscreen     : Enable fullscreen mode (default: windowed)\n");
 156                         printf("  -window         : Enable windowed mode                      \n");
 157                         printf("  -pal            : Force VJ to PAL mode (default: NTSC)      \n");
 158                         printf("  -ntsc           : Force VJ to NTSC mode                     \n");
 159                         printf("\nInvoking Virtual Jagaur with no ROM file will cause it to boot up\n");
 160                         printf("with the VJ GUI.\n");
 161                         return 1;
 162                 }
 163     }
 164
 165         // Set up SDL library
 166         if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0)
 167         {
 168                 WriteLog("VJ: Could not initialize the SDL library: %s\n", SDL_GetError());
 169                 return -1;
 170         }
 171
 172         WriteLog("VJ: SDL successfully initialized.\n");
 173
 174 WriteLog("Initializing memory subsystem...\n");
 175         InitMemory();
 176 WriteLog("Initializing version...\n");
 177         InitVersion();
 178         version_display(log_get());
 179 WriteLog("Initializing jaguar subsystem...\n");
 180         jaguar_init();
 181
 182         // Get the BIOS ROM
 183 #ifdef USE_BUILT_IN_BIOS
 184         WriteLog("VJ: Using built in BIOS/CD BIOS...\n");
 185         memcpy(jaguar_bootRom, jagBootROM, 0x20000);
 186         memcpy(jaguar_CDBootROM, jagCDROM, 0x40000);
 187         BIOSLoaded = CDBIOSLoaded = true;
 188 #else
 189 //      if (vjs.useJaguarBIOS)
 190 // What would be nice here would be a way to check if the BIOS was loaded so that we
 191 // could disable the pushbutton on the Misc Options menu... !!! FIX !!! [DONE here, but needs to be fixed in GUI as well!]
 192 WriteLog("About to attempt to load BIOSes...\n");
 193         BIOSLoaded = (JaguarLoadROM(jaguar_bootRom, vjs.jagBootPath) == 0x20000 ? true : false);
 194         WriteLog("VJ: BIOS is %savailable...\n", (BIOSLoaded ? "" : "not "));
 195         CDBIOSLoaded = (JaguarLoadROM(jaguar_CDBootROM, vjs.CDBootPath) == 0x40000 ? true : false);
 196         WriteLog("VJ: CD BIOS is %savailable...\n", (CDBIOSLoaded ? "" : "not "));
 197 #endif
 198
 199         SET32(jaguar_mainRam, 0, 0x00200000);                   // Set top of stack...
 200
 201 WriteLog("Initializing video subsystem...\n");
 202         InitVideo();
 203 WriteLog("Initializing GUI subsystem...\n");
 204         InitGUI();
 205
 206         // Now with crunchy GUI goodness!
 207 WriteLog("About to start GUI...\n");
 208         GUIMain(haveCart ? argv[1] : NULL);
 209
 210 //This is no longer accurate...!
 211 //      int elapsedTime = clock() - startTime;
 212 //      int fps = (1000 * totalFrames) / elapsedTime;
 213 //      WriteLog("VJ: Ran at an average of %i FPS.\n", fps);
 214
 215         jaguar_done();
 216         VersionDone();
 217         MemoryDone();
 218         VideoDone();
 219         log_done();
 220
 221         // Free SDL components last...!
 222         SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER);
 223         SDL_Quit();
 224
 225     return 0;
 226 }