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