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

   1 //
   2 // Virtual Jaguar Emulator
   3 //
   4 // Original codebase by 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>
  11 #endif
  12
  13 //#include <dirent.h>                                                                   // POSIX, but should compile with linux & mingw...
  14 #include <time.h>
  15 #include <SDL.h>
  16 #include "jaguar.h"
  17 //#include "crc32.h"
  18 //#include "zlib.h"
  19 //#include "unzip.h"
  20 #include "video.h"
  21 #include "gui.h"
  22 #include "sdlemu_opengl.h"
  23 #include "settings.h"                                                           // Pull in "vjs" struct
  24
  25 // Uncomment this for speed control (?)
  26 //#define SPEED_CONTROL
  27
  28 // Private function prototypes
  29
  30 //uint32 JaguarLoadROM(uint8 *, char *);
  31 //void JaguarLoadCart(uint8 *, char *);
  32 //int gzfilelength(gzFile gd);
  33
  34 // External variables
  35
  36 extern uint8 * jaguar_mainRam;
  37 extern uint8 * jaguar_bootRom;
  38 extern uint8 * jaguar_mainRom;
  39
  40 // Various paths
  41
  42 //static char * jaguar_bootRom_path = "./bios/jagboot.rom";
  43 //static char  *jaguar_bootRom_path="c:/jaguarEmu/newload.img";
  44 //static char  *jaguar_bootRom_path="./bios/JagOS.bin";
  45 //char * jaguar_eeproms_path = "./eeproms/";
  46 //char jaguar_boot_dir[MAX_PATH];
  47
  48 //These should go into video.cpp...
  49 //And they will!
  50 //SDL_Surface * surface, * mainSurface;
  51 //int16 * backbuffer = NULL;
  52 //SDL_Joystick * joystick;
  53 //Uint32 mainSurfaceFlags = SDL_SWSURFACE;
  54
  55 bool finished = false;
  56 bool showGUI = false;
  57 bool showMessage = false;
  58 uint32 showMessageTimeout;
  59 char messageBuffer[200];
  60
  61 //
  62 // The main emulator loop (what else?)
  63 //
  64 //Maybe we should move the video stuff to TOM? Makes more sense to put it there...
  65 //Actually, it would probably be better served in VIDEO.CPP... !!! FIX !!! [DONE]
  66 uint32 totalFrames;//temp, so we can grab this from elsewhere...
  67 int main(int argc, char * argv[])
  68 {
  69         uint32 startTime;//, totalFrames;//, endTime;//, w, h;
  70         uint32 nNormalLast = 0;
  71         int32 nNormalFrac = 0;
  72     int32 nFrameskip = 0;                                                       // Default: Show every frame
  73     int32 nFrame = 0;                                                           // No. of Frame
  74
  75         printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator v1.0.7\n");
  76         printf("Based upon Virtual Jaguar core v1.0.0 by Cal2 of Potato emulation.\n");
  77         printf("Written by Niels Wagenaar (Linux/WIN32), Caz (BeOS),\n");
  78         printf("James L. Hammons (WIN32) and Adam Green (MacOS)\n");
  79         printf("Contact: http://sdlemu.ngemu.com/ | sdlemu@ngemu.com\n");
  80
  81         bool haveCart = false;                                                  // Assume there is no cartridge...!
  82
  83         log_init("vj.log");
  84         LoadVJSettings();                                                               // Get config file settings...
  85
  86         // Check the switches... ;-)
  87         // NOTE: Command line switches can override any config file settings, thus the
  88         //       proliferation of the noXXX switches. ;-)
  89
  90         for(int i=1; i<argc || argv[i]!=NULL; i++)
  91         {
  92                 // This would be the most likely place to do the cart loading...
  93                 if (argv[i][0] != '-')
  94                         haveCart = true;                                                // It looks like we have a cartridge!
  95
  96                 if (!strcmp(argv[i], "-joystick"))
  97                         vjs.useJoystick = true;
  98
  99                 if (!strcmp(argv[i], "-joyport"))
 100                 {
 101                         vjs.joyport = atoi(argv[++i]) + 1;
 102                         if (vjs.joyport > 3)
 103                                 vjs.joyport = 3;
 104                 }
 105
 106                 if (!strcmp(argv[i], "-frameskip"))
 107                 {
 108                         nFrameskip = atoi(argv[++i]) + 1;
 109                         if (nFrameskip > 10)
 110                                 nFrameskip = 10;
 111 #ifdef SPEED_CONTROL
 112                         nFrameskip = 0;
 113 #endif
 114                 }
 115
 116                 if (!strcmp(argv[i], "-bios"))
 117                         vjs.useJaguarBIOS = true;
 118
 119                 if (!strcmp(argv[i], "-nobios"))
 120                         vjs.useJaguarBIOS = false;
 121
 122                 if (!strcmp(argv[i], "-dsp"))
 123                         vjs.DSPEnabled = true;
 124
 125                 if (!strcmp(argv[i], "-nodsp"))
 126                         vjs.DSPEnabled = false;
 127
 128                 if (!strcmp(argv[i], "-pipeline"))
 129                         vjs.usePipelinedDSP = true;
 130
 131                 if (!strcmp(argv[i], "-nopipeline"))
 132                         vjs.usePipelinedDSP = false;
 133
 134                 if (!strcmp(argv[i], "-gl"))
 135                         vjs.useOpenGL = true;
 136
 137                 if (!strcmp(argv[i], "-nogl"))
 138                         vjs.useOpenGL = false;
 139
 140                 if (!strcmp(argv[i], "-fullscreen"))
 141                         vjs.fullscreen = true;
 142
 143                 if (!strcmp(argv[i], "-window"))
 144                         vjs.fullscreen = false;
 145
 146                 if (!strcmp(argv[i], "-pal"))
 147                         vjs.hardwareTypeNTSC = false;
 148
 149                 if (!strcmp(argv[i], "-ntsc"))
 150                         vjs.hardwareTypeNTSC = true;
 151
 152                 if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-?"))
 153                 {
 154                     printf("Usage: \n\n");
 155                         printf("vj [romfile] [switches]\n");
 156                         printf("  -? or -help     : Display usage and switches                \n");
 157                         printf("  -frameskip 1-10 : Enable frameskip 1 - 10 (default: none)   \n");
 158                         printf("  -joystick       : Enable joystick/gamepad                   \n");
 159                         printf("  -joyport 0-3    : Select desired joystick port              \n");
 160                         printf("  -bios           : Boot cart using Jaguar BIOS ROM           \n");
 161                         printf("  -nobios         : Boot cart without using Jaguar BIOS ROM   \n");
 162                         printf("  -dsp            : Force VJ to use the DSP                   \n");
 163                         printf("  -nodsp          : Force VJ to run without the DSP           \n");
 164                         printf("  -pipeline       : Use the DSP pipelined core                \n");
 165                         printf("  -nopipeline     : Use the DSP non-pipelined core            \n");
 166                         printf("  -gl             : Use OpenGL rendering                      \n");
 167                         printf("  -nogl           : Use old non-OpenGL rendering              \n");
 168                         printf("  -fullscreen     : Enable fullscreen mode (default: windowed)\n");
 169                         printf("  -window         : Enable windowed mode                      \n");
 170                         printf("  -pal            : Force VJ to PAL mode (default: NTSC)      \n");
 171                         printf("  -ntsc           : Force VJ to NTSC mode                     \n");
 172                         printf("\nInvoking Virtual Jagaur with no ROM file will cause it to boot up\n");
 173                         printf("with the Jaguar BIOS.\n");
 174                         return 1;
 175                 }
 176     }
 177
 178         memory_init();
 179         version_init();
 180         version_display(log_get());
 181         jaguar_init();
 182
 183         // Get the BIOS ROM
 184         if (vjs.useJaguarBIOS)
 185                 JaguarLoadROM(jaguar_bootRom, vjs.jagBootPath);
 186
 187         SET32(jaguar_mainRam, 0, 0x00200000);                   // Set top of stack...
 188
 189         InitVideo();
 190         InitGUI();
 191
 192         // Get the cartridge ROM (if passed in)
 193         // Now with crunchy GUI goodness!
 194 //      JaguarLoadCart(jaguar_mainRom, (haveCart ? argv[1] : vjs.ROMPath));
 195 //Need to find a better way to handle this crap...
 196         GUIMain();
 197
 198 /*      jaguar_reset();
 199
 200         totalFrames = 0;
 201         startTime = clock();
 202         nNormalLast = 0;                                                                        // Last value of timeGetTime()
 203         nNormalFrac = 0;                                                                        // Extra fraction we did
 204         nNormalLast = SDL_GetTicks();                                           //timeGetTime();
 205
 206         while (!finished)
 207         {
 208 #ifdef SPEED_CONTROL
 209                 nTime = SDL_GetTicks() - nNormalLast;                   // calcule le temps écoulé depuis le dernier affichage
 210                                                                                                                 // nTime est en mili-secondes.
 211                 // détermine le nombre de trames à passer + 1
 212                 nCount = (nTime * 600 - nNormalFrac) / 10000;
 213
 214                 // si le nombre de trames à passer + 1 est nul ou négatif,
 215                 // ne rien faire pendant 2 ms
 216                 if (nCount <= 0)
 217                 {
 218                         //Sleep(2);
 219                         //SDL_Delay(1);
 220                 } // No need to do anything for a bit
 221                 else
 222                 {
 223                         nNormalFrac += nCount * 10000;                          //
 224                         nNormalLast += nNormalFrac / 600;                       // add the duration of nNormalFrac frames
 225                         nNormalFrac %= 600;                                                     //
 226
 227                         // Pas plus de 9 (10-1) trames non affichées
 228                         if (nCount > 10)
 229                                 nCount = 10;
 230                         for(int i=0; i<nCount-1; i++)
 231                                 jaguar_exec(backbuffer, false);
 232 #endif
 233             // Set up new backbuffer with new pixels and data
 234                         JaguarExecute(backbuffer, true);
 235                         totalFrames++;
 236 //WriteLog("Frame #%u...\n", totalFrames);
 237 //extern bool doDSPDis;
 238 //if (totalFrames == 373)
 239 //      doDSPDis = true;
 240
 241                         // Some QnD GUI stuff here...
 242                         if (showGUI)
 243                         {
 244                                 extern uint32 gpu_pc, dsp_pc;
 245                                 DrawString(backbuffer, 8, 8, false, "GPU PC: %08X", gpu_pc);
 246                                 DrawString(backbuffer, 8, 16, false, "DSP PC: %08X", dsp_pc);
 247                         }
 248
 249                         // Simple frameskip
 250                         if (nFrame == nFrameskip)
 251                         {
 252                                 RenderBackbuffer();
 253                                 nFrame = 0;
 254                         }
 255                         else
 256                                 nFrame++;
 257
 258                         joystick_exec();
 259
 260 #ifdef SPEED_CONTROL
 261                 }
 262 #endif
 263         }*/
 264
 265         int elapsedTime = clock() - startTime;
 266         int fps = (1000 * totalFrames) / elapsedTime;
 267         WriteLog("VJ: Ran at an average of %i FPS.\n", fps);
 268
 269         jaguar_done();
 270         version_done();
 271         memory_done();
 272         VideoDone();                                                                    // Free SDL components last...!
 273         log_done();
 274
 275     return 0;
 276 }